Vashington yodgorligi - Washington Monument

Vashington yodgorligi
Vashington yodgorligi, 2016 yil oktyabr oyida tasvirlangan.
Manzil	Milliy savdo markazi, Vashington, AQSh,
Koordinatalar	38 ° 53′22 ″ N. 77 ° 2′7 ″ V / 38.88944 ° N 77.03528 ° Vt / 38.88944; -77.03528Koordinatalar: 38 ° 53′22 ″ N. 77 ° 2′7 ″ V / 38.88944 ° N 77.03528 ° Vt / 38.88944; -77.03528[1]:6, 82, 86
Maydon	106,01 gektar (42,90 ga)
Balandligi	555 fut (169 m)
Qurilgan	1848–1854, 1879–1884
Mehmonlar	671,031 (2008 yilda)
Boshqaruv organi	Milliy park xizmati
Veb-sayt	Vashington yodgorligi
AQShning tarixiy joylarning milliy reestri
Rasmiy nomi	Vashington yodgorligi
Belgilangan	1966 yil 15 oktyabr
Yo'q ma'lumotnoma.	66000035
Vashington yodgorligining Markaziy Vashington shahrida joylashgan joyi Markaziy Vashington, xaritani ko'rsatish Vashington yodgorligi (Kolumbiya okrugi) Kolumbiya okrugining xaritasini ko'rsatish Vashington yodgorligi (AQSh) Qo'shma Shtatlar xaritasini ko'rsatish

The Vashington yodgorligi bu obelisk ichida Milliy savdo markazi yilda Vashington, Kolumbiya, eslash uchun qurilgan Jorj Vashington, bir paytlar bosh qo'mondon Qit'a armiyasi (1775-1784) da Amerika inqilobiy urushi va birinchi Amerika Qo'shma Shtatlari Prezidenti (1789–1797). Ning deyarli sharqida joylashgan Hovuzni aks ettirish va Linkoln yodgorligi,^[2] yasalgan yodgorlik marmar, granit va bluestone gneiss,^[3] dunyodagi eng baland tosh tuzilish va dunyodagi eng baland obelisk,^[A] 554 fut balandlikda 7 ¹¹⁄₃₂ dyuym (169.046 m) balandligi bo'yicha AQSh milliy geodeziya tadqiqotlari (o'lchangan 2013–14) yoki 555 fut 5 ¹⁄₈ dyuym (169.294 m) balandligi bo'yicha Milliy park xizmati (o'lchangan 1884).^[B] Agar ularning barchasi piyodalar uchun kirish joylari ustida joylashgan bo'lsa, bu dunyodagi eng baland yodgorlik ustunidir.^[A] O'tish Köln sobori, u 1884 va 1889 yillar orasidagi dunyodagi eng baland inshoot edi, undan keyin u tomonidan bosib o'tildi Eyfel minorasi Parijda.

Yodgorlik qurilishi 1848 yilda boshlangan va mablag 'etishmasligi, Vashington milliy yodgorlik jamiyati ustidan nazorat olib borish uchun kurash va 1854 yildan 1877 yilgacha 23 yilga to'xtatilgan. Amerika fuqarolar urushi. Tosh konstruktsiyasi 1884 yilda tugatilgan bo'lsa-da, ichki temir buyumlar, knoll va yodgorlik toshlarini o'rnatish ishlari 1888 yilgacha tugamagan. Taxminan 150 metr (46 m) yoki 27% yuqoriga ko'rinadigan marmarning soyalanishidagi farq qurilishning qaerdaligini ko'rsatadi. to'xtatildi va keyinchalik boshqa manbadan marmar bilan qayta tiklandi. Asl dizayn tomonidan edi Robert Mills (1781-1855) ning Janubiy Karolina, lekin u o'z taklifini kiritmagan ustunli mablag 'etishmasligi sababli, faqat yalang'och obelisk bilan davom etmoqda. The burchak toshi 1848 yil 4-iyulda yotqizilgan; birinchi tosh tugallanmagan stump ustiga qo'yilgan 1880 yil 7-avgust; tosh tosh o'rnatilgan edi 1884 yil 6-dekabr; qurilgan yodgorlik bag'ishlandi 1885 yil 21-fevral;^[14] va rasmiy ravishda ochilgan 1888 yil 9 oktyabr.

Vashington yodgorligi - bu Misr uslubidagi ichi bo'sh tosh obelisk balandligi 500 fut (152,4 m) balandligi 55 fut (16,8 m) ga ko'tarilgan piramidiya. Uning devorlari poydevorida 15 fut (4,6 m) qalinlikda va 1 ¹⁄₂ oyoqlari (0,46 m) yuqori qismida. The marmar piramidionning qalinligi atigi 7 dyuym (18 sm) bo'lgan oltita kamar bilan qo'llab-quvvatlanadigan ingichka devorlarga ega, ikkitasi qarama-qarshi devorlar o'rtasida piramidiya markazidan o'tib, to'rtta kichik burchak kamonidan iborat. Piramidiyaning tepasi katta marmar toshli tosh bo'lib, uning tepasida kichik alyuminiy piramida joylashgan bo'lib, to'rt tomonida yozuvlar bor. Birinchi bosqich 1848–1854 yillarda qurilgan eng pastki 150 fut (45,7 m) devorlar qoziq toshdan iborat. gneys moloz toshlar (tugallanmagan toshlar) katta miqdordagi tutashgan ohak atrofida yarim tayyor marmar toshlarning jabhasi bilan 1 ¹⁄₄ qalinligi 0,4 m. 1880–1884 yillarning ikkinchi bosqichida qurilgan devorlarning yuqori 350 fut (106,7 m) qismi marmar sirtining toshlaridan iborat bo'lib, ularning yarmi devorlarga chiqib, qisman tugatilgan granit toshlar.^[15]

Ichki qismni devorlarni aylantirib turadigan temir zinapoyalar egallagan, markazda lift, ularning har biri tosh konstruksiyani qo'llab-quvvatlamaydigan to'rtta temir ustunlar bilan ta'minlangan. Zinapoyalar ellik qismni o'z ichiga oladi, aksariyati shimoliy va janubiy devorlarda, sharqiy va g'arbiy devorlari bo'ylab ular orasida uzun uzunliklar tushgan. Ushbu qo'nish joylari zinapoyalarga kirish imkoni bo'lgan paytda (1976 yilgacha) turli xil materiallar va o'lchamdagi ko'plab yozilgan yodgorlik toshlarini osongina ko'rishga imkon berdi, shuningdek, zinapoyalar orasidagi bitta yodgorlik toshini ko'rish qiyin. Piramidion sakkizta kuzatuv oynasiga ega, ikkitasi ikkitadan, ikkitasi yon tomondan sakkizta qizil samolyotni ogohlantiruvchi chiroq. Liftni qo'llab-quvvatlash ustunlari orqali er osti suvlari bilan bog'langan ikkita alyuminiy chaqmoqlar yodgorlikni himoya qiladi. Yodgorlikning hozirgi poydevori qalinligi 11,3 m (beton) bilan qoplangan o'zining asl toshbo'ron gneys molozining yarmidan iborat. Poydevorning shimoli-sharqiy burchagida, erdan 21 fut (6,4 m) pastda marmar joylashgan burchak toshi jumladan, a rux esdalik bilan to'ldirilgan ish.^[15] Yodgorlik markazida joylashgan ustunlarning katta doirasida ellikta Amerika bayrog'i hilpiraydi.^[16] 2001 yilda teraktning oldini olish uchun kirish joyiga vaqtincha tekshiruv moslamasi qo'shildi.^[17] An 2011 yilda zilzila yodgorlikka ozgina zarar etkazgan va u 2014 yilgacha yopilgan!^[18] Lift tizimini ta'mirlash, xavfsizlikni oshirish va tuproq ifloslanishini yumshatish uchun 2016 yil avgustdan 2019 yil sentyabrgacha yana yopildi.

Tarix

Mantiqiy asos

Jorj Vashington (1732–1799), o'z mamlakatining otasi deb tan olingan va "birinchi bo'lib urushda, avval tinchlikda va avvalo o'z yurtdoshlarining qalbida bo'lgan" (maqtov bilan General-mayor 'Yengil otli Garri' Li Vashingtonning dafn marosimida, 1799 yil 26 dekabrda) 1775 yildan 1799 yilgacha yangi Amerika Qo'shma Shtatlarining hukmron harbiy va siyosiy rahbari bo'lgan. Hatto uning sobiq dushmani ham Qirol Jorj III uni "davrning eng buyuk xarakteri" deb atagan.^[19]

1799 yilda vafot etganda, u tanqidiy meros qoldirdi: Vashington tan olinmagan jamoat belgisi edi Amerika harbiylari va fuqarolik vatanparvarligi. U bilan ham aniqlangan Federalistlar partiyasi, 1800 yilda muxolifat partiyasining qahramonini nishonlashni istamagan Jefferson respublikachilariga milliy hukumat ustidan nazoratni yo'qotdi.^[20]

Yodgorlik uchun takliflar

G'alabadan boshlab Inqilob, Vashingtonga 1783 yilda eski tomonidan berilgan avtorizatsiya bilan yodgorlik qurish to'g'risida ko'plab takliflar bo'lgan Konfederatsiya Kongressi bo'lajak Amerika milliy poytaxtida Generalning otliq haykali o'rnatish. 1799 yil dekabrida vafotidan so'ng Amerika Qo'shma Shtatlari Kongressi 1791 yildan buyon qurilishi rejalashtirilgan milliy poytaxtda munosib yodgorlik yaratishga ruxsat bergan, ammo bu qaror bekor qilinganida Demokratik-respublika partiyasi (Jeffersonian Respublikachilar) 1801 yilda muhim rol o'ynaganidan keyin Kongress ustidan nazoratni o'z qo'liga oldi 1800 saylov, qarama-qarshi siyosiy partiyalar o'rtasida birinchi hokimiyat o'zgarishi bilan.^[21] Respublikachilar Vashingtonning ramziga aylanganidan xafa bo'lishdi Federalistlar partiyasi; respublikachilik qadriyatlari qudratli odamlarga yodgorliklar qurish g'oyasiga dushman bo'lib tuyuldi. Shuningdek, ular uning rasmini tangalarda yoki uning tug'ilgan kunini nishonlashda to'sib qo'yishdi. Fuqarolar urushi haqidagi Shimoliy-Janubiy bo'linish bilan bir qatorda, keyingi siyosiy mojarolar 19-asrning oxirigacha Vashington yodgorligining qurilishini to'xtatdi. O'sha paytga qadar Vashingtonda shimol ham, janub ham nishonlashi mumkin bo'lgan milliy qahramon qiyofasi bor edi va unga bag'ishlangan yodgorliklar endi munozarali bo'lmagan.^[22]

1783 yildayoq eski Konfederatsiya Kongressi (1781 yildan keyin vorislar) Ikkinchi qit'a Kongressi ) "Kongress qarorgohi joylashgan joyda Jorj Vashingtonning otliq haykali o'rnatilishi to'g'risida" qaror qabul qildi. Ushbu taklif haykalga o'yma yozishni talab qilib, uni "taniqli Jorj Vashington sharafiga" o'rnatilganligini tushuntiradi. Bosh qo'mondon urush paytida Amerika Qo'shma Shtatlari qo'shinlarining ozodligi, suvereniteti va mustaqilligini tasdiqlagan va ta'minlagan ".^[23] Hozirda Vashington shahrining milliy poytaxti Vashingtonda Prezident Vashingtonning ikkita otliq haykali mavjud bo'lib, bittasi joylashgan Vashington doirasi ning chorrahasida Tumanli pastki va West End shimoliy uchidagi mahallalar Jorj Vashington universiteti talabalar shaharchasi, ikkinchisi esa bog'larda Milliy sobor ning Yepiskop cherkovi Vashingtonning shimoli-g'arbidagi Sankt-Alban tog'ida.

1799 yil 24 dekabrda, Vashington vafotidan 10 kun o'tgach, AQSh Kongressi qo'mitasi boshqa turdagi yodgorlikni tavsiya qildi. Jon Marshall (1755–1835), a Vakil Virjiniyadan (keyinchalik u bo'ldi) Amerika Qo'shma Shtatlarining bosh sudyasi, 1801-1835) da qabr qurishni taklif qildi Kapitoliy va keyinchalik bunday gumbazni katta gumbazning rotundagi ostiga qo'yish uchun ishlab chiqilgan. Biroq, mablag 'etishmasligi, qanday yodgorlik turi mamlakatning birinchi prezidentini eng yaxshi sharaflashi to'g'risida kelishmovchilik va Vashington oilasining tanasini ko'chirishni istamasligi Vernon tog'i har qanday loyihada rivojlanishning oldini oldi.^[24]

Dizayn

Arxitektor tomonidan taklif qilingan Vashington yodgorligini chop etish Robert Mills (1781-1855), Taxminan 1845-1848 yillarda rejalashtirilgan reja

Yodgorlik sari intilish 1833 yilda boshlangan. O'sha yili fuqarolarning katta guruhi Vashington milliy yodgorlik jamiyatini tuzdilar. Uch yil o'tgach, 1836 yilda ular 28000 dollar miqdorida xayriya mablag'larini yig'ib olishganidan so'ng (2019 yilda 1 000 000 dollarga teng), ular yodgorlik dizayni uchun tanlov e'lon qilishdi.^[25]:1-chp

1835 yil 23 sentyabrda jamiyat menejerlari kengashi o'zlarining kutgan narsalarini tasvirlab berdi:^[26]

Ko'zda tutilgan yodgorlik uning sharafiga qurilishi kerak bo'lgan, dunyoda misli ko'rilmagan va barpo etilishi kerak bo'lgan odamlarning minnatdorchiligi, erkinligi va vatanparvarligiga mos keladigan bo'lishi kerak. [Bu ] ajoyiblikni nafislik bilan uyg'unlashtirishi, Amerika xalqi uchun g'urur va uni ko'rganlarning hayratiga sabab bo'ladigan darajada va go'zallikda bo'lishi kerak. Uning materiallari butunlay amerikaliklarga va har bir shtatdan olib kelingan marmar va granitdan iborat bo'lib, har bir shtat o'z hissasini qo'shadigan materialning shon-sharafida hamda uning qurilishiga mablag 'ajratishda qatnashishi mumkin.

Jamiyat 1836 yilda dizaynlar uchun tanlov o'tkazdi. 1845 yilda g'olib me'mor deb e'lon qilindi Robert Mills, go'yoki me'mor sifatida professional tarzda o'qitilgan birinchi tug'ilgan amerikalik.^[6]:2-2 Fuqarolari Baltimor birini 1814 yilda qurish uchun uni tanlagan edi Jorj Vashingtonga birinchi yodgorliklar Dastlab ularning port shahridagi sobiq sud binosi maydonchasi uchun rejalashtirilgan va u baland va bashang bezatilgan Yunoncha ustun Prezidentning haykali o'rnatilgan balkonlar bilan. Millsning Baltimor yodgorligi tosh qo'yilib, qurilishi 1815 yilda boshlangan edi, ammo keyinchalik 1829 yilda qurib bitkazilgandan so'ng tepasida toga kiygan Vashington haykali bo'lgan oddiy ustun ustuniga soddalashtirildi, ammo balandligi tufayli ko'chib o'tdi o'sha paytgacha shimoliy qishloq tepaliklari shahar bo'yidagi o'sishni kutayotgan suv bo'yidagi shahar tashqarisida. Mills poytaxtni ham yaxshi bilar edi, u Baltimordan janubi-g'arbdan atigi 40 mil (65 kilometr) uzoqlikda edi va Vashington uchun jamoat binolarining me'mori sifatida tanlangan edi. Uning loyihasi bo'yicha diametri 250 fut (76 m) va balandligi 100 fut (30 m) bo'lgan to'rtburchak ustunli bino qurilishi kerak edi, undan balandligi 500 fut (150 m) bo'lgan to'rt qirrali obelisk paydo bo'lib, jami 600 fut (180 m) balandlikda joylashgan. . Diametri 70 fut (21 m) bo'lgan katta silindrsimon ustun bino markazidagi obeliskni qo'llab-quvvatladi. Obelisk 21 metr kvadratga teng bo'lishi kerak edi^[C] poydevorda va tepada bir oz tepalik bilan 40 metr (12 m) kvadrat. Obelisk ham, ustun ham ichi bo'sh edi, uning ichkarisida temir yo'l aylanardi. Obeliskda eshik yo'q edi - aksincha uning ichki qismi o'rnatilgan ustunning ichki qismidan kiritildi. Ustunning tagida "kemerli yo'l" bor edi. Bino portikosining tepasida Vashington oltita otning jilovini ushlab turgan aravada turibdi. Kolonada ichida 30 taniqli haykallar bor edi Inqilobiy urush qahramonlari, shuningdek, 56 imzo chekuvchilarining haykallari Mustaqillik deklaratsiyasi.^{[27]:6–8[15]:13[28]:26–28}

Mills dizaynini tanqid qilish va uning taxminiy bahosi bir million dollardan oshishi (1848 pulda, 2019 yilda 20 000 000 dollarga teng) jamiyatda ikkilanishga sabab bo'ldi. 1848 yil 11 aprelda jamiyat mablag 'etishmasligi sababli faqat oddiy tekis obeliskni qurishga qaror qildi. Millsning 1848 yilgi obeliskining balandligi 500 fut, tagida 55 fut (17 m) kvadrat va tepasida - 35 fut (11 m) kvadrat bo'lishi kerak edi. Uning poydevorining sharqiy va g'arbiy tomonlarida har birining balandligi 4,6 m va eni 6 fut (1,8 m) bo'lgan ikkita katta eshik bor edi.^{[15]:15, 21} Misr uslubida o'yilgan eshikning har bir eshigi atrofida to'siqlar, og'ir peshona va atrof-muhit bor edi. qanotli quyosh va asps.^{[29][15]:23[28]:353+} Ushbu tafsilotlarning ayrimlarini 1860 yilda quyidagi fotosuratda ko'rish mumkin Xayriyalar tugaydi, rasmni bosgandan va asl faylni eng katta kattalashtirishda ko'rgandan so'ng. Ushbu original dizayn obelisk poydevorini o'rab turishi kerak bo'lgan ulkan ibodatxonaga to'g'ri keldi, ammo u hech qachon bunyod etilmagani uchun qurilishning ikkinchi bosqichining me'mori Tomas Linkoln Keysi 1885 yilda proektsiyali to'siqlar, pediment va entablaturani tekisladi, marmar bilan g'arbiy kirishni devor bilan to'sib qo'ydi va sharqqa kirishni balandligi 2,4 metrgacha qisqartirdi.^{[30][15]:90–91} G'arbiy alkoveda a Vashingtonning bronza haykali 1992–93 yildan. Shuningdek, 1992-93 yillar davomida a ohaktosh atrofida Millsning 1848 yilgi dizaynini taqlid qilish uchun qanotli quyosh va asps bilan bezatilgan sharqiy lift eshigiga o'rnatildi.

Qurilish

Vashington yodgorligi bilan Jefferson Pierning g'arbiy tomoni

Vashington yodgorligi dastlab markazdan to'g'ridan-to'g'ri janubga yo'naltirilgan chiziq joylashgan joyda joylashgan bo'lishi kerak edi oq uy markazidan to'g'ridan-to'g'ri g'arb tomon yo'nalgan chiziqni kesib o'tdi AQSh Kapitoliy kuni Kapitoliy tepaligi. Frantsuzcha tug'ilgan va harbiy muhandis Pyer (Piter) Charlz L'Enfant ning 1791 vizyoneri "Qo'shma Shtatlar hukumatining doimiy joyiga mo'ljallangan shahar rejasi ..." ushbu nuqtani Jorj Vashingtonning qadimgi deb nomlangan markaziy otliq haykali joylashgan joy sifatida belgilab qo'ydi Konfederatsiya Kongressi oxirida 1783 yilda ovoz bergan edi Amerika inqilobiy urushi (1775–1783) kelajakda Amerika milliy poytaxtida.^[31][D] Belgilangan joyda joylashgan zamin beqaror bo'lib, rejalashtirilgan obelisk singari og'ir inshootni ushlab tura olmadi, shuning uchun yodgorlik joylashgan joy sharqiy-janubi-sharqqa (118.9 m) 390 fut (118.9 m) ga ko'chirildi.^[E] Dastlab mo'ljallangan ushbu saytda hozirda kichik monolit joylashgan Jefferson Pier.^[36][37] Ushbu ofset sabab bo'ldi McMillan rejasi deb belgilash uchun Linkoln yodgorligi Kapitoliy yoki yodgorlikning g'arbiy qismida emas, balki Kapitoliy yoki yodgorlikning g'arbiy qismidan taxminan 1 ° janubda "Kapitoliy va yodgorlikning asosiy o'qiga joylashtirilishi" kerak.^[38][F]

Qazish va dastlabki qurilish

Yodgorlik qurilishi nihoyat uch yildan so'ng 1848 yilda ushbu joyni qazish bilan, tayyorlangan toshga tosh yotqizish bilan va toshning atrofida va uning ustiga asl poydevor qo'yish bilan, uning ulkan devorlari qurilishi boshlanishidan oldin boshlandi. Keyingi yil. Vashington yodgorligi tarixchisi Jon Stil Gordon qurilishda ishlatilayotgan qullar mehnatiga oid zamonaviy da'volar to'g'risida "Men aniq aytolmayman, lekin toshsozlik juda yuqori malakaga ega edi, shuning uchun qullar buni amalga oshirishi ehtimoldan yiroq emas. Toshlar toshlar bug 'dvigatellari yordamida ko'tarilgan, shuning uchun sizga bu kabi narsalar uchun malakali muhandis va usta kerak bo'ladi. Bug' dvigatelini parvarish qilish, ichidagi quyma temir zinapoyalarni qurish Bu og'ir ish emas edi ... Dastlabki karerlar Merilendda bo'lgan, shuning uchun qullar mehnati, shubhasiz, tosh qazish va tashish uchun ishlatilgan "^[39] Gordonning so'zlaridan iqtibos keltirgan Ibrohim Rizmanning ta'kidlashicha, "Amerikada anttebellumda qullik paytida malakali ishchi sifatida ishlagan odamlar juda ko'p edi. Darhaqiqat, toshbo'ron bo'lib ishlagan qullar bor edi. Shunday qilib, ba'zi bir zarur narsalarni bajargan qullar bo'lishi mumkin. yodgorlik uchun malakali ishchi kuchi. "^[39] Tarixchi Jessi Xollandning fikriga ko'ra, o'sha paytda Vashington va uning atrofidagi shtatlarda qullik hukmronlik qilgani va qullar odatda davlat va xususiy qurilishda ishlatilganligi sababli, qurilish ishchilari orasida afroamerikalik qullar bo'lishi ehtimoli katta.^[40]

Gordonning dalillari qullik bekor qilingandan keyingi ikkinchi bosqichga (1879-1888) to'g'ri keladi, chunki qo'yilgan har bir tosh mohir tosh ustasi tomonidan kiyinish va silliqlash kerak edi. Bunga 1885–86 yillarda qurilgan temir zinapoyalar kiradi. Karerdagi toshbo'ronchilar qul bo'lganligi tasdiqlangan, chunki konni qurish paytida barcha karer ishchilari qul bo'lgan Amerika Qo'shma Shtatlari Kapitoliy 1790 yillar davomida.^[41]:5–6 Biroq, Gollandiyaning qarashlari birinchi bosqich uchun amal qiladi, chunki uning qurilishining aksariyati faqat malakasiz qo'l mehnatini talab qiladi. Birinchi bosqichda har biri bir necha tonna og'irlikdagi toshlarni ko'tarish usuli, qo'l vince yoki bug 'dvigatelida bo'ladimi, hech qanday ma'lumot saqlanib qolmaydi.^[15]:17–23 1790-yillarda Amerika Qo'shma Shtatlari kapitoliyining asosini qurgan qullarga oid saqlanib qolgan ma'lumotlar juda ham yordam bermaydi. O'sha paytda Kolumbiya okrugi tashqarida Jorjtaun aholi kam edi, shuning uchun federal hukumat qullarining oddiy kundalik mehnati uchun haq to'lanadigan egalaridan qullarni ijaraga oldi. Yakshanba, bayramlar va kechalar uchun har qanday ortiqcha ish haqi to'g'ridan-to'g'ri qullarga to'lanadi, ular kundalik ehtiyojlari uchun yoki ozodliklarini sotib olish uchun tejashlari mumkin edi.^[41]:9 Aksincha, yodgorlikning birinchi bosqichi Vashington milliy yodgorlik jamiyati tomonidan tuzilgan bo'lib, u federal hukumat singari shov-shuvli bo'lmasligi mumkin edi, ammo 1850-yillarda ikki jamiyat yodgorlikni boshqarish uchun kurash olib borayotganda ko'p ma'lumot yo'qolgan. . Yodgorlikning birinchi bosqichi bilan deyarli bir vaqtda bo'lgan 1850-yillarda Kapitoliyning katta kengayishi paytida qullardan foydalanishga oid foydali ma'lumotlar mavjud emas.

Birinchi bosqichda ishlatiladigan ozgina miqdordagi toshlardan faqat mohir tosh ustasi, yodgorlikning tashqi yuzasidagi marmar bloklar (ularning ichki yuzalari juda qo'pol bo'lib qolgan) va yodgorlikning qo'pol ichki devorlarini tashkil etuvchi gneys toshlari (barchasi devorlar ichidagi ichki toshlarning boshqa sirtlari yarqirab qolgan). Birinchi bosqichda yotqizilgan barcha gneys toshlarining aksariyati, devorlarning tashqi va ichki yuzalari orasidagi toshlardan, juda katta toshdan tortib to mayda toshlarga qadar bo'lgan toshlar moloz tomonidan katta miqdorda ushlab turilgan ohak. Ushbu molozning yuqori yuzasini quyida ko'rish mumkin Devorlar 1880 yilda ikkinchi bosqichda ishlatilgan silliqlangan / qo'pol marmar va granit toshlardan oldin chizilgan rasmda. The asl poydevor devorlar ostidan qatlamli gneys molozlaridan yasalgan, ammo devorlarda ishlatilgan katta toshlarsiz. Birinchi bosqichda ishlatilgan gneys toshlarining aksariyati yuqori qismdagi karerlardan olingan Potomak daryosi Vodiy. Birinchi va ikkinchi bosqichlarning deyarli barcha marmar toshlari Merilend shtatidagi Baltimor markazidan 30 km shimolda joylashgan qishloqdagi ikkita karerdan olingan. Baltimor okrugi bu erda birinchi Vashington yodgorligi uchun tosh olingan.

Yoqilgan Mustaqillik kuni, 1848 yil 4-iyul, Masonlar, xuddi shu Vashington mansub bo'lgan tashkilot, asos toshini qo'ydi (jismonan emas, ramziy ma'noda).^{[28]:45, 136–143} Ga binoan Jozef R. Chandler:^{[28]:136, 140–141[42]}

Bizning zamonda yuvinish endi bo'lmaydi ... Ammo uning fazilatlari insoniyat qalbida muhrlangan. Jang maydonida buyuk bo'lgan kishi Vashington generalligiga qaraydi. Maslahatida dono bo'lib o'sadigan kishi Vashingtonga taqlid qilayotganini his qiladi. Xalqning xohishiga qarshi hokimiyatni iste'foga chiqarishi mumkin bo'lgan kishi, uning nazarida Vashingtonning yorqin namunasi bor.^[42]

Ikki yil o'tgach, a torrid 1850 yil 4-iyul, Jorj Vashington Parke Kustis (1781–1857), Jorj Vashingtonning asrab olingan o'g'li va nabirasi Marta Vashington (1731-1802), xalqidan tosh bag'ishlagan Kolumbiya okrugi 12-Prezident bo'lgan marosimda yodgorlikka Zakari Teylor (1784–1850, xizmat 1849–1850) vafot etishidan besh kun oldin qatnashgan ovqatdan zaharlanish.^[43]

Xayriyalar tugaydi

Qisman qurilgan yodgorlik, tomonidan suratga olingan Metyu Brady; taxminan 1860 yil

Qurilish 1854 yilgacha davom etdi, xayr-ehsonlar tugagach va yodgorlik 152 fut (46,3 m) balandlikka ko'tarildi. O'sha paytda o'z hissasini qo'shgan yodgorlik toshi Papa Pius IX, Papa toshi deb nomlangan, a'zolari tomonidan vayron qilingan katoliklarga qarshi, nativist "" Deb nomlanuvchi Amerika partiyasiNou-nothings ", erta tongda 1854 yil 6-mart (ruhoniy uni 1982 yilda asl toshning inglizcha "Rimdan Amerikaga" iborasi o'rniga "A Roma Americae" lotincha iborasini ishlatib almashtirgan). Bu Vashingtondagi Milliy yodgorlik jamiyatiga jamoat hissasini to'xtatishga olib keldi, shuning uchun ular Kongressga pul uchun murojaat qilishdi.^{[15]:25–26[44]:16, 215, 222–3}

So'rov hozirgina polga etib bordi Vakillar palatasi qurilish mablag'lari tugaganidan bir yil o'tgach, 1855 yil 22-fevralda "Nou-Hech narsa" partiyasi Jamiyat boshqaruvini qo'lga kiritganda. Kongress darhol Jamiyat uchun kutilgan 200,000 AQSh dollar miqdoridagi mablag'ni kiritdi va Federal mablag'larni to'xtatdi. Faoliyati davomida "Nou-Hech narsa" jamiyati yodgorlik joyida topilgan rad qilingan toshlardan foydalangan holda faqat ikkita tosh yoki to'rt metrli toshlarni qo'shib, o'qning balandligini 156 metrga etkazdi. Dastlabki Jamiyat egallashni tan olishdan bosh tortdi, shuning uchun ikkala raqib Jamiyat 1858 yilgacha yonma-yon mavjud edi. "Hech narsa bilmaslik" partiyasi parchalanib, yodgorlik uchun mablag 'ajratishni istamaganligi sababli, u o'zining dastlabki haykaliga egalik huquqini topshirdi. yarim yildan keyin 1858 yil 20 oktyabr. Kelgusida olib qo'yilishining oldini olish uchun AQSh Kongressi Jamiyatni birlashtirdi 1859 yil 22-fevral belgilangan nizom va qoidalar, protseduralar to'plami bilan.^{[25]:chp 3[28]:52–65}

Fuqarolik urushidan keyingi davr

The Amerika fuqarolar urushi (1861-1865), yodgorlikdagi barcha ishlarni to'xtatdi, ammo urush tugaganidan keyin qiziqish ortdi. Muhandislar poydevorning etarlicha mustahkamligini aniqlash uchun bir necha bor o'rganib chiqdilar. 1876 ​​yilda Amerika yuz yillik ning Mustaqillik deklaratsiyasi, Kongress qurilishni qayta boshlash uchun yana 200 ming dollar ajratishga rozi bo'ldi.^[45]

Ishni qayta boshlashdan oldin, eng mos dizayn haqida bahslar qayta tiklandi. Ko'p odamlar ustunsiz oddiy obeliskni juda yalang'och deb o'ylashdi. Arxitektor Mills kolonadani qoldirib, yodgorlikni "sopi" ga o'xshatadi, deb tan olgan edi sarsabil "; boshqa bir tanqidchi" ozgina ... bilan faxrlanishni "taklif qilganini aytdi.^[24]

Yodgorlik rejalari va qurilish muddatlari

Bunday munosabat odamlarni muqobil dizaynlarni taqdim etishga majbur qildi. Vashington milliy yodgorlik jamiyati ham, Kongress ham yodgorlikni qanday tugatish kerakligi haqida munozaralar o'tkazdi. Jamiyat beshta yangi dizaynni ko'rib chiqdi, degan xulosaga keldi Uilyam Vetmorning hikoyasi (1819-1895), "badiiy did va go'zallik bilan nihoyatda ustun" bo'lib tuyuldi. Kongress Millsning asl nusxasi bilan bir qatorda ushbu beshtani muhokama qildi. Qaror qabul qilar ekan, obeliskda ishni davom ettirishni buyurdi. Nihoyat, jamiyat a'zolari kolonadadan voz kechishga va obeliskni o'zgartirishga rozi bo'lishdi, shunda u Misrning mumtoz nisbatiga mos keladi.^[26]

Qayta boshlash

Qurilish 1879 yilda podpolkovnik rahbarligida qayta tiklandi Tomas Linkoln Keysi ning Amerika Qo'shma Shtatlari armiyasining muhandislar korpusi. Keysi poydevorni yangitdan tuzatdi va uni mustahkamladi, shunda u og'irligi 40 ming tonnadan ortiq bo'lgan tuzilmani qo'llab-quvvatlashi mumkin edi. Tugallanmagan stump ustiga birinchi tosh 1880 yil 7 avgustda Prezident ishtirok etgan kichik marosimda qo'yilgan Rezerford B. Xeys, Keysi va boshqalar. Prezident o'zining bosh harflarini va sanasini chizib qo'ygan kichik tanga ustiga birinchi tosh qo'yilishidan 150 metr balandlikdagi nam sement yotog'iga qo'ydi.^[15]:76 Keysi qurilishning birinchi bosqichining ichki devorlariga ishlangan 92 ta yodgorlik toshlarini ("taqdim etilgan toshlar") topdi. Qurilishni davom ettirishdan oldin u 150 metr balandlikdagi sakkizta toshni vaqtincha olib tashladi, shunda bu darajadagi devorlar tashqi tomonga burilib, ingichka ikkinchi fazali devorlarni hosil qildi. U ushbu toshlarni va lapidariumda saqlanib qolgan yodgorlik toshlarining aksariyatini ichki devorlarga 1885-1889 yillarda kiritgan.^[44]:11–17 Yodgorlikning pastki uchdan bir qismi qurilishning qolgan qismiga qaraganda biroz engilroq soyadir, chunki marmar turli xil karerlardan olingan.^[46]

Tomas Linkoln Keysi bilan alyuminiy cho'qqisini o'rnatgan P. H. McLaughlin (qo'llar bilan)

Vashington yodgorligi deyarli 1884 yilda qurilgan

Kongress etarli mablag 'ajratgandan so'ng yodgorlik binosi tezda davom etdi. To'rt yil ichida, 1884 yil 6-dekabrda 100 untsiya (2,83 kg) alyuminiy tepalik / chaqmoq tayoqchasi o'rnatilishi bilan yakunlandi.^[45] Cho'qqisi, alyuminiy kumush bilan taqqoslanadigan narxni buyurgan paytda o'sha paytdagi eng katta alyuminiy quyma bo'lagi edi.^[10] Ikki yildan so'ng Hall-Héroult jarayoni alyuminiyni ishlab chiqarishni osonlashtirdi va alyuminiy narxi keskin pasayib ketdi, ammo u porloq, zanglamaydigan tepalikni ta'minlashi kerak edi.^[G][47] Yodgorlik 1888 yil 9 oktyabrda jamoatchilikka ochilgan.^[48]

Bag'ishlanish

Yodgorlik 1885 yil 21 fevralda bag'ishlangan.^[14] Yodgorlik maydonida 800 dan ortiq odam qatnashdi, Ogayo shtati senatorining sovuq kunida nutqlarini tinglashdi Jon Sherman (1823-1900), ruhoniy Xenderson Suter, Uilyam Uilson Korkoran (Vashington Milliy Yodgorlik Jamiyatidan) doktor Jeyms C. Velling tomonidan o'qilgan, chunki Corcoran ishtirok eta olmagan, Mason Mayron M. Parker, polkovnik Tomas Linkoln Keysi Armiya muhandislari korpusi va Prezident Chester A. Artur.^{[45][28]:104[49]} Prezident Artur shunday deb e'lon qildi:

Men hozir .... xalq nomidan ushbu yodgorlikni qabul qilaman .... va uni shu vaqtdan boshlab Jorj Vashingtonning o'lmas nomi va xotirasiga bag'ishlangan deb e'lon qilaman.^[49]

Nutqlardan keyin general-leytenant Filipp Sheridan (1831–1888), Fuqarolar urushi Otliqlar faxriysi, so'ngra bosh general Amerika Qo'shma Shtatlari armiyasi Ijroiya uyidan o'tib, hozirda mehmonlar va olomonni o'z ichiga olgan kortejga rahbarlik qildi oq uy, keyin orqali Pensilvaniya avenyu ning sharqiy asosiy kirish qismida Kapitoliy, qaerda 21-Prezident Chester Artur (1829–1886, xizmat 1881–1885) o'tgan qo'shinlarni qabul qildi. Keyin, Vakillar palatasida AQSh Kapitoliy, prezident, uning mahkamasi, diplomatlar va boshqalar Vakilning so'zlarini tinglashdi Jon Devis Long (1838-1915), (avvalgi Hokim leytenant va Massachusets shtati gubernatori va kelajak Dengiz kuchlari kotibi ) tomonidan bir necha oy oldin yozilgan nutqni o'qing Robert C. Uintrop (1809-1894), ilgari Vakillar palatasining spikeri 37 yil oldin 1848 yilda burchak toshi qo'yilganida, lekin hozir uning nutqini shaxsan o'zi aytib berish uchun juda kasal.^{[28]:234–260} Tomonidan yakuniy nutq so'zlandi John W. Daniel (1842-1910), Virjiniya shtati, taniqli huquqshunos, muallif va vakili (kongressmen) va senator. Tantanalar o'sha kuni kechqurun havodan va erdan namoyish etiladigan fişeklerle yakunlandi.^{[28]:260–285[50][51]}

Keyinchalik tarix

Qadimgi dunyoning asosiy baland binolari diagrammasi, 1884 yil. Vashington yodgorligi eng baland inshootdir.

Tugallangandan so'ng, bu dunyodagi eng baland bino edi Eyfel minorasi to'rt yil o'tib yakunlandi Parij 1889 yilda. Hali ham shunday Vashington shahridagi eng baland bino^[52][53] The 1910 yilgi binolarning balandliklari to'g'risidagi qonun yangi bino balandliklarini qo'shni ko'chaning kengligidan 20 futdan (6,1 m) katta bo'lmagan darajada cheklaydi.^[54] Ushbu yodgorlik Evropa poytaxtlari atrofidagi obelisklardan balandroqdir Misr va Efiopiya, ammo oddiy antiqa obelisklar monolitik tosh blok sifatida ishlangan va shuning uchun kamdan-kam balandligi 30 metrdan balandroq bo'lgan.^[55]

Vashington yodgorligi rasmiy ochilishidan oldin ulkan olomonni o'ziga jalb qildi. O'zini bag'ishlagandan so'ng olti oy davomida 10041 kishi 900 pog'onani va 47 ta katta qo'nish joyini tepaga ko'tarishdi. Keyin lift Qurilish materiallarini ko'tarishda foydalanilgan yo'lovchilarni tashish uchun o'zgartirishlar kiritildi, tashrif buyuruvchilar soni tez o'sdi va 1888 yilga kelib oyiga o'rtacha 55000 kishi cho'qqiga chiqayotgan edi, faqat tugaganidan va o'z ishiga bag'ishlanganidan uch yil o'tib.^[56] 1979-1997 yillarda yillik tashrif buyuruvchilar soni o'rtacha 1,1 million kishiga etdi. 2005 yildan 2010 yilgacha, kuniga ruxsat berilgan mehmonlar soniga cheklovlar qo'yilganida, Vashington yodgorligi yiliga o'rtacha 631 ming kishini tashkil qildi.^[57] Tomonidan boshqariladigan barcha tarixiy hududlarda bo'lgani kabi Milliy park xizmati (agentligi AQSh Ichki ishlar vazirligi ), milliy yodgorlik ro'yxatiga kiritilgan Tarixiy joylarning milliy reestri 1966 yil 15 oktyabrda.^[58]

1900-yillarning boshlarida material 150 metrlik belgidan past bo'lgan birinchi qurilish davridagi tashqi toshlar orasidan chiqa boshladi va sayyohlar uni "geologik sil" deb atashdi. Bunga tashqi va ichki devorlar orasidagi tsement va moloz plomba moddasining yemirilishi sabab bo'lgan. Yodgorlikning pastki qismida sovuq va issiq va nam va quruq ob-havo sharoiti bo'lganligi sababli, material eriydi va tashqi devor toshlari orasidagi yoriqlar bo'ylab harakatlanib, ularning tashqi yuzasiga tushganda qattiqlashdi.^[59]

1999 yilda yodgorlik qayta tiklanmoqda

1982 yil dekabr oyida o'n soat davomida Vashington yodgorligi va sakkizta sayyoh yadroviy qurol namoyishchilarining garovida edi, Norman Mayer, furgonda portlovchi moddalar borligini da'vo qilib, u yodgorlik poydevori tomon yo'l oldi. Amerika Qo'shma Shtatlari Park politsiyasi Mayerni otib o'ldirgan. Voqeada yodgorlik buzilmagan va keyinchalik Mayerda portlovchi moddalar bo'lmaganligi aniqlandi. Ushbu hodisadan so'ng, avtotransport vositalarining ruxsatsiz yaqinlashishini cheklash uchun atrofdagi joylar o'zgartirildi.^[60]

Yodgorlik 1998 yildan 2001 yilgacha qayta tiklash bo'yicha keng ko'lamli loyihani amalga oshirdi. Shu vaqt ichida u amerikalik me'mor tomonidan ishlab chiqilgan iskala bilan to'liq qoplandi. Maykl Graves (shuningdek, ichki o'zgarishlarga kim javobgar edi).^[61] Loyiha tarkibiga tozalash, ta'mirlash va qayta nomlash yodgorlikning tashqi va ichki tosh ishlari. Vandalizmni oldini olish uchun hammaga ochiq bo'lgan ichki joylardagi tosh shisha bilan o'ralgan, torroq ramkalar bilan yangi oynalar o'rnatilgan (ko'rish maydonini ko'paytirish uchun). Shuningdek, Jorj Vashington hayotini va yodgorlikning tarixdagi o'rnini tarannum etuvchi yangi eksponatlar qo'shildi.^[62]

Loyiha davomida vaqtincha "Discovery Channel Center" deb nomlangan tashrif buyuruvchilar markazi qurildi. Markaz yodgorlikning yuqori qismiga simulyatsiya qilingan yurishni ta'minladi va yodgorlik yopilgan bosqichlarda tashrif buyuruvchilar bilan ma'lumot almashdi.^[63] Loyihaning aksariyat bosqichlari 2000 yil yozida tugatilib, yodgorlikning 2000 yil 31 iyulda qayta ochilishiga imkon berdi.^[62] Yodgorlik qayta tiklash loyihasining yakuniy bosqichini yakunlab, yangi lift kabinasini o'rnatishga ruxsat berish uchun 2000 yil 4 dekabrda yana vaqtincha yopildi. Yangi kabinada shisha derazalar mavjud bo'lib, tashrif buyuruvchilarga yodgorlik devorlariga yozib qo'yilgan 194 ta yodgorlik toshlaridan ayrimlarini ko'rish imkoniyatini yaratdi. Idishni o'rnatish kutilganidan ancha uzoq davom etdi va yodgorlik 2002 yil 22 fevralgacha qayta ochilmadi. Qayta tiklash loyihasining yakuniy qiymati 10,5 million dollarni tashkil etdi.^[64]

2004 yil 7 sentyabrda yodgorlik 15 million dollarlik ta'mirga yopildi, bunda ko'plab xavfsizlik yangilanishlari va landshaft me'mori tomonidan yodgorlik maydonlarini qayta qurish ishlari olib borildi. Laurie Olin (1938 y.). Ta'mirlash ishlari qisman xavfsizlik bilan bog'liq edi 2001 yil 11 sentyabrdagi hujumlar va boshlanishi Terrorizmga qarshi urush. Yodgorlik 2005 yil 1 aprelda qayta ochildi, atrof atrof esa yopiq bo'lib, o'sha yoz oxirida peyzaj tugaguniga qadar.^[65][66]

2011 yildagi zilzila

Dan keyin yodgorlikning yuqori qismidagi toshni yorish 2011 yil Virjiniya zilzilasi

2013 yilda Vashington yodgorligini ta'mirlash

2011 yil 23 avgustda Vashington yodgorligi 5,8 ballik vaqtida zarar ko'rdi 2011 yil Virjiniya zilzilasi;^[67] yodgorlikda 150 dan ortiq yoriqlar topildi.^[68] Milliy park xizmati vakili inspektorlar inshoot tepasida yoriq bo'lganini aniqladilar va yodgorlik muddatsiz yopilishini e'lon qildi.^[69][70] Blok piramidiya shuningdek, qisman ko'chirildi va tosh parchalari, tosh chiplari, ohak va bo'yoq chiplari yodgorlikdan ozod bo'lib, ichki zinapoyalar va kuzatuv maydonchasini "tashladilar".^[71] Park Service, ikkita qurilish muhandislik firmalarini olib kelishini aytdi (Wiss, Janney, Elstner Associates, Inc. va Tipping Mar Associates) yodgorlikni baholash uchun tarixiy binolar va zilziladan zarar ko'rgan inshootlarda katta tajribaga ega.^[72]

Rasmiylarning ta'kidlashicha, yodgorlikning tashqi tomoni tekshirilganda yodgorlik poydevori atrofida ohak va tosh parchalari bo'lgan "axlat maydonchasi" aniqlangan va yodgorlikning ichiga bir nechta "sezilarli" tosh parchalari tushib ketgan.^[70] Piramidiyaning g'arbiy yuzidagi markaziy toshdagi yoriqning eni 1 dyuym (2,5 sm) va uzunligi 4 fut (1,2 m) bo'lgan.^[73][74] Park Service inspektorlari, shuningdek, lift tizimi buzilganligini va faqat 250 fut (76 m) darajasida ishlayotganini aniqladilar, ammo tez orada ta'mirlandi.^[75]

2011 yil 27 sentyabrda, Denali milliy bog'i qo'riqchi Brendon Latham Viss, Janney, Elstner Associates'dan "qiyin kirish" jamoasiga tegishli to'rt alpinistga yordam berish uchun kelgan.^[70][74] Tekshiruvga park agentligi tomonidan yodgorlikning yuqori qismida ichkaridan ko'rinmaydigan ko'proq yoriqlar bor degan gumon sabab bo'lgan. Agentlik 23 avgust kuni yuzaga kelgan yoriqlarni to'ldirganini aytdi. Keyin Irene dovuli 27 avgust kuni ushbu hududni urib, yodgorlik ichidan suv topildi va Park Service kashf qilinmagan zarar ko'proq ekanligiga shubha qildi.^[70] Rappellerlar radiodan foydalanib, topgan narsalarini erdagi muhandislik mutaxassislariga xabar berishdi.^[76] Uiss, Jeynni, Elstner alpinisti Deyv Megerle reappling uskunasini o'rnatishga uch soat vaqt sarfladilar va yodgorlikning chaqmoq tayoqchasi tizimi atrofida piramidion ustiga to'siq o'rnatdilar;^[73] bu piramidondagi lyuk 2000 yildan beri birinchi marta ochilgan edi.^[73]

Yodgorlikning tashqi tekshiruvi 2011 yil 5 oktyabrda yakunlandi. G'arbiy yoriqning uzunligi 4 metr (1,2 m) ga qo'shimcha ravishda, tekshiruvning yuqori qismida yoki yonida bir nechta burchak yoriqlari va yuzaki shpallar (toshning bo'laklari singan) topildi. yodgorlik va qo'shma ohakning ko'proq yo'qotilishi yodgorlikdan pastga tushadi. To'liq hisobot 2011 yil dekabrda e'lon qilingan.^[18] Bob Vogel, Superintendent of the National Mall and Memorial Parks, emphasized that the monument was not in danger of collapse. "It's structurally sound and not going anywhere", he told the national media at a press conference on September 26, 2011.^[74]

More than $200,000 was spent between August 24 and September 26 inspecting the structure.^[70] The National Park Service said that it would soon begin sealing the exterior cracks on the monument to protect it from rain and snow.^[76][77]

2012 yil 9-iyul kuni Milliy park xizmati announced that the monument would be closed for repairs until 2014.^[78] The Milliy park xizmati hired construction management firm Hill International in conjunction with joint-venture partner Louis Berger Group to provide coordination between the designer, Wiss, Janney, and Elstner Associates, the general contractor Perini, and numerous stakeholders.^[79] NPS said a portion of the plaza at the base of the monument would be removed and iskala constructed around the exterior. In July 2013, lighting was added to the scaffolding.^[80] Some stone pieces saved during the 2011 inspection would be refastened to the monument, while "Dutchman patches"^[H] would be used in other places. Several of the stone lips that help hold the pyramidion's 2,000-pound (910 kg) exterior slabs in place were also damaged, so engineers installed stainless steel brackets to more securely fasten them to the monument.^[82]

The National Park Service reopened the Washington Monument to visitors on May 12, 2014, eight days ahead of schedule.^[83][79] Repairs to the monument cost $15 million^[68], with taxpayers funding $7.5 million of the cost and Devid Rubenshteyn funding the other $7.5 million.^[84] At the reopening Interior Secretary Sally Jewell, Bugun show weatherman Al Roker va American Idol 12-fasl g'olib Kendis Glover hozir bo'lgan.^[85]

Subsequent problems and repairs

The monument continued to be plagued by problems after the earthquake, including in January 2017 when the lights illuminating it went out.^[86] The monument was closed again in September 2016 due to reliability issues with the elevator system.^[87] On December 2, 2016, the National Park Service announced that the monument would be closed until 2019 in order to modernize the elevator. The $2–3 million project was to correct the elevator's ongoing mechanical, electrical and computer issues, which had shuttered the monument since August 17. The National Park Service requested funding in its FY 2017 President's Budget Request to construct a permanent screening facility for the Washington Monument.^[88] The final months of closure were for mitigation of possibly contaminated underground soil thought to have been introduced in the 1880s.^[89] The monument reopened September 19, 2019.^[90]

Komponentlar

Burchak toshi

The burchak toshi was laid with great ceremony at the northeast corner of the lowest course or step of the old poydevor kuni 1848 yil 4-iyul. Robert Mills, the architect of the monument, stated in September 1848, "The foundations are now brought up nearly to the surface of the ground; the second step being nearly completed, which covers up the corner stone."^[15]:20 Therefore, the cornerstone was laid below the 1848 ground level. In 1880, the ground level was raised 17 feet (5.2 m) to the base of the shaft by the addition of a 30-foot (9.1 m) wide earthen embankment encircling the reinforced foundation, widened another 30 feet in 1881, and then the knoll was constructed in 1887–88.^{[6]:B-36–B-39[15]:70, 95–96} If the cornerstone was not moved during the strengthening of the foundation in 1879–80, its upper surface would now be 21 feet (6.4 m) below the pavement just outside the northeast corner of the shaft. It would now be sandwiched between the concrete slab under the old foundation and the concrete buttress completely encircling what remains of the old foundation. During the strengthening process, about half by volume of the periphery of the lowest seven of eight courses or steps of the old foundation (gneiss rubble) was removed to provide good footing for the buttress. Although a few diagrams, pictures and descriptions of this process exist, the fate of the cornerstone is not mentioned.^{[6]:2-7–2-8, 3-3–3-5, 4-3–4-4, B-11–B-18, figs 2.5–2.7, 3.2–3.6, 3.13, 4.8–4.11[15]:67–73}

The cornerstone was a 24,500-pound (11,100 kg) marble block 2.5 feet (0.76 m) high and 6.5 feet (2.0 m) square with a large hole for a zinc case filled with memorabilia. The hole was covered by a copper plate inscribed with the date of the Mustaqillik deklaratsiyasi (July 4, 1776), the date the cornerstone was laid (July 4, 1848), and the names of the managers of the Washington National Monument Society. The memorabilia in the zinc case included items associated with the monument, the city of Washington, the national government, state governments, benevolent societies, and George Washington, plus miscellaneous publications, both governmental and commercial, a coin set, and a Bible, totaling 73 items or collections of items, as well as 71 newspapers containing articles relating to George Washington or the monument.^{[25]:app C[28]:pp 43–46, 109–166}

The ceremony began with a parade of dignitaries in carriages, marching troops, fire companies, and benevolent societies.^{[25]:chp 2[28]:44–48[50]:16–17, 45–47} A long oration was delivered by the Vakillar palatasining spikeri Robert C. Winthrop.^{[28]:113–130} Then, the cornerstone was pronounced sound after a Mason ceremony using George Washington's Masonic gavel, apron and sash, as well as other Masonic symbols. Prezident ishtirok etdi Jeyms K. Polk and other federal, state and local government officials, Elizabeth Schuyler Hamilton, Mrs. Dolley Madison, Mrs. John Quincy Adams va Jorj Vashington Parke Kustis, among 15,000 to 20,000 others, including a bald eagle. The ceremony ended with fireworks that evening.

Xotira toshlari

Memorial stone from Utah representing the former provisional Deseret shtati

States, cities, foreign countries, benevolent societies, other organizations, and individuals have contributed 194 memorial stones, all inserted into the east and west interior walls above stair landings or levels for easy viewing, except one on the south interior wall between stairs that is difficult to view. The sources disagree on the number of stones for two reasons: whether one or both "height stones" are included, and stones not yet on display at the time of a source's publication cannot be included. The "height stones" refer to two stones that indicate height: during the first phase of construction a stone with an inscription that includes the phrase "from the foundation to this height 100 feet" was installed just below the 80–90-foot stairway and high above the 60–70-foot stairway;^{[7]:sheet 25[44]:52} during the second phase of construction a stone with a horizontal line and the phrase "top of statue on Capitol" was installed on the 330-foot level.^{[7]:sheet 30[91]}

The Tarixiy tuzilishga oid hisobot (HSR, 2004) named 194 "memorial stones" by level, including both height stones.^{[6]:4-17–4-20, 5-6, "194" on 4-17} Jacob (2005) described in detail and pictured 193 "commemorative stones", including the 100-foot stone but not the Kapitoliy tosh.^{[44]:"193" on 1} The Tarixiy Amerika binolarini o'rganish (HABS, 1994) showed the location of 193 "memorial stones", but did not describe or name any. HABS showed both height stones, but did not show one stone not yet installed in 1994.^{[7]:sheets 22–25, 28–30} Olszewski (1971) named 190 "memorial stones" by level, including the Capitol stone but not the 100-foot stone. Olszewski did not include three stones not yet installed in 1971.^{[25]:chp 6, app D, "190" in chp 6}

Of 194 stones, 94 are marble, 40 are granite, 29 are limestone, 8 are sandstone, with 23 miscellaneous types, including stones with two types of material and those whose materials are not identified.^[Men] Unusual materials include mahalliy mis (Michigan ),^[44]:147 pipestone (Minnesota ),^[44]:153 toshlangan yog'och (Arizona ),^[44]:213 va jadeit (Alyaska ).^[44]:220 The stones vary in size from about 1.5 feet (0.46 m) square (Karfagen )^[J] to about 6 by 8 feet (1.8 m × 2.4 m) (Filadelfiya and New York City).^{[44]:3, 90, 124, 218}

Yuta contributed one stone as a territory and another as a state, both with inscriptions that include its pre-territorial name, Deseret, both located on the 220-foot level.^{[44]:154–155}

A stone at the 240-foot level of the monument is inscribed in Uelscha: Fy Iaith, Fy Ngwlad, Fy Nghenedl, Cymry am byth (My Language, My Country, My Nation, Welsh forever). The stone, imported from Wales, was donated by Welsh citizens of Nyu York.^[44]:170[93] Two other stones were presented by the Sunday Schools of the Episkopal metodist Church in New York and the Sabbath School children of the Methodist Episcopal Church in Filadelfiya —the former quotes from the Bible verse Proverbs 10:7, "The memory of the just is blessed".^{[44]:190, 192}

Ottoman Sultan Abdul Mejid I donated $30,000 toward the construction of the Washington monument. The Sultans' donation was the largest single donation toward the building of the Washington Monument. The Sultan's intention was to bridge peace between the Ottomans and the Americans. The stone containing the Turkish inscriptions commemorating this event is on the 190-foot level. The translation of the inscriptions state, "To support the continuation of true friendship Abdul Mejid Khan's clear and pure name was written on the lofty stone in Washington."^[44]:128 It combines the works of two eminent xattotlar: an imperial tugra by Mustafa Rakım's student Haşim Efendi, and an inscription in jalī ta'līq script by Kadıasker Mustafa İzzet Efendi, the calligrapher who wrote the giant medallions at Ayasofya yilda Istanbul.^[94][95]

One stone was donated by the Ryukyu qirolligi and brought back by Commodore Metyu C. Perri,^[96] but never arrived in Washington (it was replaced in 1989).^[44]:210Many of the stones donated for the monument carried inscriptions which did not commemorate George Washington. For example, one from the Qadrlash va sabr-bardosh ibodatxonalari stated "We will not make, buy, sell, or use as a beverage, any spiritous or malt liquors, Wine, Cider, or any other Alcoholic Liquor."^[44]:140 (George Washington himself had owned a whiskey distillery which operated at Vernon tog'i after he left the presidency.^[97])

Aluminum apex

Aluminum apex showing inscriptions on its east (left) and north (right) faces. Lightning rods not shown.

The aluminum apex, composed of a metal that at the time was as rare and valuable as silver, was cast by Uilyam Frishmut Filadelfiya.^[10] At the time of casting, it was the largest piece of aluminum in the world. Before the installation it was put on public display at Tiffanyniki in New York City and stepped over by visitors who could say they had "stepped over the top of the Washington Monument". It was 8.9 inches (23 cm) tall before ³⁄₈ inch (1 cm) was vaporized from its tip by lightning strikes during 1885–1934, when it was protected from further damage by tall lightning rods surrounding it. Its base is 5.6 inches (14 cm) square. The angle between opposite sides at its tip is 34°48'. It weighed 100 ounces (2.83 kg) before lightning strikes removed a small amount of aluminum from its tip and sides.^[30] Spectral analysis in 1934 showed that it was composed of 97.87% aluminum with the rest impurities.^[10] It has a shallow depression in its base to match a slightly raised area atop the small upper surface of the marble capstone, which aligns the sides of the apex with those of the capstone, and the downward protruding lip around that area prevents water from entering the joint.^[15]:83–84 It has a large hole in the center of its base to receive a threaded 1.5-inch (3.8 cm) diameter copper rod which attaches it to the monument and used to form part of the lightning protection system.^[15]:91 2015 yilda Milliy geodeziya tadqiqotlari reported the coordinates of the 1 mm dimple atop the aluminum apex as 38°53′22.08920″N 77°2′6.92910″W / 38.8894692222°N 77.0352580833°W / 38.8894692222; -77.0352580833 (WGS 84).^{[1]:6, 82, 86}

The four faces of the external aluminum apex all bear inscriptions in qarama-qarshi writing (Snell Dumaloq qo'l ), which are incised into the aluminum.^[10] The apex was inscribed on site after it was delivered. Most inscriptions are the original 1884 inscriptions, except for the top three lines on the east face which were added in 1934. From 1885 to 1934 a wide gold-plated copper band that held eight short lightning rods, two per side but not at its corners, covered most of the inscriptions, which were damaged and illegible as shown in the accompanying picture made in 1934. A new band including eight long lightning rods, one at each corner and one at the middle of each side, was added in 1934 and removed and discarded in 2013. The inscriptions that it covered were still damaged and illegible in 2013.^[1]:90–95 Only the top four and bottom two lines of the north face, the first and last lines of the west face, the top four lines of the south face, and the top three lines of the east face are still legible. Even though the inscriptions are no longer covered, no attempt was made to repair them when the apex was accessible in 2013. The following table shows legible inscriptions in ko'k and illegible inscriptions in qizil.^[1]:93 No colors appear on the actual apex. The inscriptions occupy the lower portions of triangles, thus the inscribed upper lines are necessarily shorter than some lower lines.

Although most printed sources, Harvey (1903),^[28]:295 Olszewski (1971),^{[25]:app C} Torres (1984),^{[15]:82, 84} va Tarixiy tuzilishga oid hisobot (2004),^{[6]:4-6–4-7} refer to the original 1884 inscriptions, the Milliy geodeziya tadqiqotlari (2015)^[1]:90–95 refers to both the 1884 and 1934 inscriptions. All sources print them according to their own editorial rules, resulting in excessive capitalization (Harvey, Olszewski, and NGS) and inappropriate line breaks. No printed source uses cursive writing, although pictures of the apex clearly show that it was used for both the 1884 and 1934 inscriptions.^{[1]:92–95[98][99]}

A replica displayed on the 490-foot level uses totally different line breaks than those on the external apex—it also omits the 1934 inscriptions. In October 2007, it was discovered that the display of this replica was positioned so that the Laus Deo (Latin for "praise be to God") inscription could not be seen and Laus Deo was omitted from the placard describing the apex. The National Park Service rectified the omission by creating a new display.^[100]

Chaqmoqdan himoya

The piramidiya, the pointed top 55 feet (17 m) of the monument, was originally designed with an 8.9-inch (23 cm) tall inscribed aluminum apex which served as a single lightning rod, installed 1884 yil 6-dekabr. Six months later on June 5, 1885 lightning damaged the marble blocks of the pyramidion,^[101] so a net of gold-plated copper rods supporting 200 3-inch (7.6 cm) gold-plated, platinum-tipped copper points spaced every 5 feet (1.5 m) was installed over the entire pyramidion.^{[6]:3-10–3-11, 3-15, figs 3.17, 3.23[25]:chp 6[15]:91–92} The original net included a gold-plated copper band attached to the aluminum apex by four large set screws which supported eight closely spaced vertical points that did not protrude above the apex. In 1934 these eight short points were lengthened to extend them above the apex by 6 inches (15 cm).^[102] In 2013 this original system was removed and discarded. It was replaced by only two thick solid aluminum lightning rods protruding above the tip of the apex by about one foot (0.3 m) attached to the east and west sides of the marble capstone just below the apex.^{[1]:23, 26[11]}

Until it was removed, the original lightning protection system was connected to the tops of the four iron columns supporting the elevator with large copper rods. Even though the aluminum apex is still connected to the columns with large copper rods, it is no longer part of the lightning protection system because it is now disconnected from the present lightning rods which shield it. The two lightning rods present since 2013 are connected to the iron columns with two large braided aluminum cables leading down the surface of the pyramidion near its southeast and northwest corners. They enter the pyramidion at its base, where they are tied together (electrically shorted) via large braided aluminum cables encircling the pyramidion two feet (0.6 m) above its base.^[11] The bottom of the iron columns are connected to ground water below the monument via four large copper rods that pass through a 2-foot (0.6 m) square well half filled with sand in the center of the foundation. The effectiveness of the lightning protection system has not been affected by a significant draw down of the suv sathi since 1884 because the soil's water content remains roughly 20% both above and below the height of the water table.^[103]

Devorlar

Cross section of rubble in shaft at 150 feet and typical of rubble below 150 feet

During the first phase of construction (1848–1854), the walls were built with bluestone gneiss rubble, ranging from very large irregular stones having a cross section of about 5 by 10 feet (1.5 m × 3.0 m) down to spalls (broken pieces of stone) all embedded in a large amount of mortar. The outer surface is marble stones 14 to 18 inches (36–46 cm) thick in 2-foot (61 cm) high courses or rows horizontally encircling the monument. Although each course contains both stretchers (stones parallel to the wall) and headers (stones projecting into the wall), about two to three times as many stretchers as headers were used. Their joints were so thin that some stones pressed on bare stone below them, breaking off many pieces since it was constructed. The batter or slope of the outer surface is 0.247 inches per foot (2.06 cm/m, 1°11'). The inner surface has disorderly rows of smaller roughly dressed bluestone gneiss.^{[6]:B-49[7]:sheets 7–30[15]:18–19, 23, 105–6} The base of the first phase walls has an outer dimension of 55 feet 1 ¹⁄₂ inches (16.80 m) square and a thickness of 15 feet (4.6 m). The interior well is 25 feet 1 inch (7.65 m) square and has square corners.^[9] The weight of the first phase walls up to 150 feet (45.7 m) is 22,373 long tons (25,058 short tons; 22,732 tonnes).^[9]

During the second phase (1879–1884), the walls were constructed of smoothly dressed (ashlar ) large marble and granite blocks (to'rtburchaklar kubiklar ) laid down in an orderly manner (Flandiyalik rishtalar ) with thick joints. Two-foot high marble surface stones, using an equal number of stretchers and headers, were backed by granite blocks from the 152-foot level (the first course above the rubble) to the 218-foot level, where marble headers become increasingly visible on the internal surface of the walls up to the 450-foot level, above which only marble stones are used.^[K]Between the 150- and 160-foot levels the inner walls rapidly slope outward, increasing the shaft well from 25 feet 1 inch square to 31 feet 5 ¹⁄₂ inches (9.59 m) square with a corresponding decrease in the thickness of the walls and their weight.^{[7]:sheets 4–5[15]:23} The second phase walls at the 160-foot level were 8 feet 7 ¹⁄₂ inches (2.63 m) thick, which, combined with the larger shaft well, yields an outer dimension of 48 feet 8 ¹⁄₂ inches (14.85 m) square at that level. The top of the second phase walls are 34 feet 5 ¹⁄₂ inches (10.50 m) square and 1 foot 6 inches (46 cm) thick.^[6]:3-7[9] The second phase interior walls have rounded corners (2-foot (0.61 m) radii). The weight of the second phase walls (from 150 feet to 500 feet) are 21,260 long tons (23,810 short tons; 21,600 tonnes). The walls of the entire shaft (combined first and second phases) are 500 feet 5 ¹⁄₈ inches (152.530 m) high.^[9]

The first phase of the walls was constructed under the direction of William Dougherty. Oq Cockeysville marble exterior came from the Texas quarry now adjacent to and east of north I-83 near the Warren Road exit in Kokeysvill, Merilend. The quarry was named for the Texas Station (no longer extant) and 19th-century town on the Shimoliy Markaziy temir yo'l. During the first phase it was operated by Thomas Symington, but is now operated by Martin Marietta materiallari^[105] and no longer produces building stone. The second phase of construction was under the direction of Lt Col/Col Thomas Lincoln Casey ning Amerika Qo'shma Shtatlari armiyasining muhandislar korpusi, who removed two defective courses added by the Know-Nothings and the last 152-foot course added by Dougherty before Casey began his construction. The next three courses of white marble (152–156 feet (46–48 m)) came from Massachusets shtatidagi Sheffild, while all courses above them came from the Beaver Dam quarry just west of the 19th-century town of Cockeysville.^{[15]:63[106][107]} The latter quarry is located on Beaver Dam Road near its intersection with McCormick Road. During the second phase the quarry was operated by Hugh Sisson, but is now flooded, is called Beaverdam Pond, and is the home of the Beaver Dam Swimming Club. Both 19th-century towns are now within the city limits of Cockeysville.

Piramidion

Rib structure of pyramidion with letter designations for courses

The marble capstone of the pyramidion is a truncated pyramid with a cubical keystone projecting from its base and a deep groove surrounding the keystone. The aluminum apex replaces its truncated top. The inside upper edges of the topmost slabs on the four faces of the pyramidion rest on the keystone and in the groove. It has a large vertical hole through which a 1.5-inch (3.8 cm) threaded copper rod passes and screws into the base of the apex, which used to form part of its chaqmoqdan himoya qilish tizimi. The keystone and groove occupy so much of its base that only a small horizontal area near its outer edge remains. The weight of the capstone is transferred to both the inner and outer portions of the shiplap upper edges of the slabs. It weighs 3,300 pounds (1,500 kg), is 5 feet 2 inches (1.57 m) high from its base to its top, and is 3 feet (91 cm) square at its base.^{[15]:85[104]:80}

The marble pyramidion has an extremely complex construction to save weight yet remain strong. Its surface slabs or panels are usually only 7 inches (18 cm) thick (with small thick and thin portions) and generally do not support the weight of slabs above them, instead transferring their own weight via 1-foot (30 cm) wide internal marble ribs to the shaft's walls. The slabs are generally 7 feet (2 m) wide and 4 feet 4 inches (1 m) high with a 2-inch (5 cm) vertical overlap (shiplap) to prevent water from entering the horizontal joints. Twelve such courses, the internal ribs, the marble capstone, and the aluminum apex comprise the pyramidion. Its height is 55 feet 0 inches (16.76 m). Its weight is 300 long tons (336 short tons; 305 tonnes).^[9] The slope of the walls of the pyramidion is 17°24' from the vertical.^[30] There are twelve ribs, three per wall, which spring from the 470-foot (143.3 m) level, all being integrated into the walls up to the 500-foot (152.4 m) level. All are free standing above 500 feet, relying on mortis va tenon joints to attach neighboring stones. The eight corner ribs terminate six courses above the shaft, each corner rib resting on its neighboring corner rib via a mitter qo'shma, forming four corner arches. Each such arch supports a pair of square corner stones, one above the other totaling one course in height. Each corner rib is linked to the nearest center rib at the sixth course via a marble tie beam. The four center ribs terminate eight courses above the shaft at a marble cruciform (cross shaped) keystone, forming two main arches that cross each other. Two stones, each one course high, are mounted on each of the four ribs, supporting two additional courses above the cruciform keystone, leaving two courses to support the capstone's weight by themselves.^{[6]:3-8–3-11[18]:6–10[108]}

The observation floor (nominally the 500-foot level) is 499 feet 4 ¹⁄₂ inches (152.21 m) above the entry lobby floor or lowest landing level. Bu 1 ¹⁄₄ inches (3.2 cm) above the marble base of the pyramidion and the top of the shaft walls.^{[1]:56, 58, 65[7]:sheet 7, 31–35[9]}

Four pairs of 3-foot (91 cm) wide observation windows are provided, spaced 4 feet (122 cm) apart, inner stone edge to edge, all just above the lowest course of slabs (504-foot level). Six are 1 foot 6 inches (46 cm) high while two on the east face are 2 feet (61 cm) high for easier egress. All were originally provided with thin marble shutters in a bronze frame each of which could be opened inward, one left and the other right per wall.^[6]:3-11 After two people committed suicide by jumping through the open windows in the 1920s, hinged horizontal iron bars were added to them in 1929.^{[6]:3-14[15]:85, 102} A ninth opening in a slab on the south face just below the capstone is provided for access to the outside of the pyramidion. It is covered by a stone slab which is internally removable. In 1931, four red aircraft warning lights were installed, one per face in one of its observation windows. Pilots complained that they could not be easily seen, so the monument was floodlit on all sides as well.^{[6]:2-14, B-39, B-41, B-52–B-53} In 1958, eight 14-inch (36 cm) diameter holes for new red aircraft warning lights were bored, one above each window near the top edge of the fourth course of slabs (516-foot level) in the pyramidion.^{[6]:2-28, 3-15, B-55[7]:sheet 12} In 1958 the observation windows were glazed with shatterproof glass. In 1974–1976, they were glazed with bulletproof glass and the shutters removed. New bulletproof glass was installed during 1997–2000.^{[6]:3-16, 3-18, B-49}

The pyramidion has two inscriptions, neither of which is regarded as a memorial stone. One is the year "1884" on the underside of the cruciform keystone; the other is at the same level as that keystone on the north face of the west center rib containing the names and titles of the four highest ranked builders. Its inscription ("Chief Engineer ..." ) is almost identical to the inscription on the south face of the aluminum apex except for "U.S.", which is part of the phrase "14th U.S. Infantry" in the inscription inside the pyramidion, but the apex has only "14th Infantry". Additionally, the internal inscription does not use cursive writing and all letters in all names are capitals.^{[7]:sheet 35[18]:8}

Jamg'arma

Cross section of foundation, both old and reinforced, showing dimensions

The first phase began with the excavation of about 7 feet 8 inches (2.3 m) of topsoil down to a level of loy, consisting of equal parts of sand and clay, hard enough to require tanlaydi to break it up. On this "bed of the foundation" the burchak toshi was laid at the northeast corner of the proposed foundation. The rest of the foundation was then constructed of bluestone gneiss rubble and spalls, with every crevice filled with ohak ohak.^{[15]:23, 68} The dimensions of this old foundation were 23 feet 4 inches (7.1 m) high, 80 feet (24.4 m) square at the base, and 58 feet 6 inches (17.8 m) square at the top, laid down in eight steps, similar to a truncated qadam piramida.^{[15]:18–19, 23, 47} At the center of the foundation a brick-lined 2-foot (60 cm) square well was dug to a depth of 20 feet (6 m) below the bed of the foundation to keep it dry and to supply water during construction.^[15]:19

During the second phase, after determining that the proposed weight of the monument was too great for the old foundation to safely bear, the thickness of the walls atop the unfinished stump was reduced and the foundation was strengthened by adding a large unreinforced concrete slab below the perimeter of the old foundation to increase the monument's load bearing area two and one half times. The slab was 13 feet 6 inches (4.1 m) thick, with an outer perimeter 126 feet 5 ¹⁄₂ inches (38.54 m) square, an inner perimeter 44 feet (13.4 m) square, with undisturbed loam inside the inner perimeter except for the water well. The area at the base of the second phase foundation is 15,992 square feet (1,485.7 m²). The strengthened foundation (old foundation and concrete slab) has a total depth of 36 feet 10 inches (11.2 m) below the bottom of the lowest course of marble blocks (now below ground), and 38 feet (11.6 m) below the entry lobby floor. Casey reported that nowhere did the load exceed 9 long tons per square foot (140 psi; 970 kPa) and did not exceed 3 long tons per square foot (47 psi; 320 kPa) near the outer perimeter.^[9] To properly distribute the load from the shaft to slab, about half by volume of the outer periphery of the old rubble foundation below its top step was removed. A continuous sloping unreinforced concrete buttress encircles what remains. The buttress is 100 feet 4 inches (30.6 m) square at its base, 64 feet 6 inches (19.7 m) square at its top, and 20 feet 5 inches (6.2 m) high. The perimeter of the original top step of the old rubble foundation rests on the larger top of the concrete buttress. Its slope (lower external angle from the vertical) is 49°. This buttress rests in a depression (triangular cross-section) on the top surface of the concrete slab. The slab was constructed by digging pairs of 4-foot (1.2 m) wide drifts on opposite sides of the monument's center line to keep the monument properly balanced. The drifts were filled with unreinforced concrete with depressions or dowel stones on their sides to interlock the sections.^{[6]:3-3–3-5, figs 3.1–3.6, 3.9, 3.13, 4.11[15]:39, 47–48, 67–73} An earthen terrace 60 feet (18 m) wide with its top at the base of the walls and steep sides was constructed in 1880–81 over the reinforced foundation while the rest of the monument was being constructed. During 1887–88, a knoll was constructed around the terrace tapering out roughly 300 feet (90 m) onto the surrounding terrain. This earthen terrace and knoll serves as an additional buttress for the foundation. The weight of the foundation is 36,912 long tons (41,341 short tons; 37,504 tonnes),^[9] including earth and gneiss rubble above the concrete foundation that is within its outer perimeter.

Stairs and elevator

North interior wall with its stairs and their wire screening.

The monument is filled with ironwork, consisting of its stairs, elevator columns and associated tie beams, none of which supports the weight of the stonework. It was redesigned in 1958 to reduce congestion and improve the flow of visitors. Originally, visitors entered and exited the west side of the elevator on the observation floor, causing congestion. So the large landing at the 490-foot level was expanded to a full floor and the original spiral stair in the northeast corner between the 490- and 500-foot levels was replaced by two spiral stairs in the northeast and southeast corners. Now visitors exit the elevator on the observation floor, then walk down either spiral stair before reboarding the elevator for their trip back down.^{[6]:fig 3.31}

The main stairs spiral up the interior walls from the entry lobby floor to the elevator reboarding floor at the 490-foot level. The elevator occupies the center of the shaft well from the entry lobby to the observation floor, with an elevator machine room (installed 1925–26) whose floor is 18 feet 10 inches (5.7 m) above the observation floor and an elevator pit (excavated 1879) whose floor is 9 feet (2.74 m) below the entry lobby floor.^{[7]:sheet 31–35[15]:61, 74} The stairs and elevator are supported by four wrought iron columns each. The four supporting the stairs extend from the entry lobby floor to the observation floor and were set at the corners of a 15-foot-8-inch (4.78 m) square. The four supporting the elevator extend from the floor of the elevator pit to 14 feet (4.3 m) above the observation floor and were set at the corners of a 9-foot-9 ¹⁄₂-inch (2.98 m) square.^[6]:3-6 The weight of the ironwork is 275 long tons (308 short tons; 279 tonnes).^[9] Quyma temir, temir, and steel were all used. The two small spiral stairs installed in 1958 are aluminum.

Most landings occupy the entire east and west interior walls every 10 feet from and including the east landing at the 30-foot level up to the west landing at the 480-foot level, east then west alternately. Three stairs with small landings rise from the entry lobby floor to the 30-foot level successively along the north, west and south interior walls. Landings from the 30-foot level up to the 150-foot level are 3 feet 2 ¹⁄₄ inches (0.97 m) by 25 feet 1 inch (7.65 m), while landings from the 160-foot level to the 480-foot level are 7 feet 10 ³⁄₄ inches (2.41 m) by 31 feet 5 ¹⁄₂ inches (9.59 m). All stairs are on the north and south walls except for the aforementioned west stair between the 10- and 20-foot levels, and the two spiral stairs.

About one fourth of visitors chose to ascend the monument using the stairs when they were available. They were closed to up traffic in 1971, and then closed to all traffic except by special arrangement in 1976.^{[6]:3-18[15]:101} The stairs had 898 steps until 1958, consisting of 18 risers in each of the 49 main stairs plus 16 risers in the spiral stair.^{[25]:chp 7[109]:18} Since 1958 the stairs have had 897 risers if only one spiral stair is counted because both spiral stairs now have 15 risers each.^{[7]:sheets 6, 31–35[15]:72} These figures do not include two additional steps in the entry passage that were covered up in 1975 by a ramp and its inward horizontal extension to meet the higher (since 1886) entry lobby floor. One step was 3.2 feet (1 m) away from the outer walls and the other was at the end of the passage, 15 feet (4.6 m) away from the outer walls.^{[6]:3-17–3-18, figs 3.11, 3.32–3.33, 3.39}

As initially constructed, the interior was relatively open with two-rail tutqichlar, but a couple of suicides and an accidental fall prompted the addition of tall wire screening (7 feet (2.1 m) high with a large diamond mesh) on the inside edge of the stairs and landings in 1929. The original steam powered elevator, which took 10 to 12 minutes to ascend to the observation floor, was replaced by an electric elevator powered by an on-site Dinamo in 1901 which took five minutes to ascend. The monument was connected to the elektr tarmog'i in 1923, allowing the installation of a modern electric elevator in 1925–26 which took 70 seconds. The latter was replaced in 1958 and again in 1998 by 70-second elevators.^{[6]:2-13, 2-15, 3-20–3-21, B-44, B-47, B-48[28]:102, 107–8} During 1997–2000, the wire screening at three platforms was replaced by large glass panels to allow visitors on the elevator to view three clusters of memorial stones that were synchronously lit as the elevator automatically slowed as it passed them during its descent.^{[6]:3-21, 4-16}

Bayroqlar

Fifty American flags around the monument

Ellik American flags (not state flags), one for each state, are now flown 24 hours a day around a large circle centered on the monument. Forty eight American flags (one for each state then in existence) were flown on wooden flag poles on Washington's birthday since 1920 and later on Independence Day, Memorial Day, and other special occasions until early 1958. Both the flags and flag poles were removed and stored between these days. In 1958 fifty 25-foot (7.6 m) tall aluminum flag poles (anticipating Alaska and Hawaii) were installed, evenly spaced around a 260-foot (79 m) diameter circle. During 2004–05, the diameter of the circle was reduced to 240 feet (73 m). Since Washington's birthday 1958, 48 American flags were flown on a daily basis, increasing to 49 flags on July 4, 1959, and then to 50 flags since 1960 yil 4-iyul. When 48 and 49 flags were flown, only 48 and 49 flag poles of the available 50 were placed into base receptacles. All flags were removed and stored overnight. Beri 1971 yil 4-iyul, 50 American flags have flown 24 hours a day.^{[6]:2-14–2-15, 4-1–4-2, B-35–B-36[7]:sheet 3[16]}

Vesica piscis

In the 2004 grounds renovation, two large circles were added to the landscaping with the obelisk in the intersection or vesica piscis. The monument's vesica piscis is not ideal because neither circle passes through the center of its neighbor. Furthermore, both "circles" are slightly elliptical.

Miscellaneous details

The total cost of the monument from 1848 to 1888 was $1,409,500^[109] (equivalent to $30,000,000 in 2019).^[110] The weight of the above ground portion of the monument is 44,208 long tons (49,513 short tons; 44,917 tonnes), whereas its total weight, including the foundation below ground and any earth above it that is within its outer perimeter is 81,120 long tons (90,854 short tons; 82,422 tonnes). The total number of blocks in the monument, including all marble, granite and gneiss blocks, whether externally or internally visible or hidden from view within the walls or old foundation is over 36,000.^[8] The number of marble blocks externally visible is about 10,000.

The monument stands 554 feet 7 ¹¹⁄₃₂ inches (169.046 m) tall according to the Milliy geodeziya tadqiqotlari (measured 2013–14) or 555 feet 5 ¹⁄₈ inches (169.294 m) tall according to the Milliy park xizmati (measured 1884).^[B] In 1975, a ramp covered two steps at the entrance to the monument, so the ground next to the ramp was raised to match its height, reducing the remaining height to the monument's apex. It is both the world's tallest predominantly stone structure and the world's tallest obelisk. It is the tallest monumental column in the world if all are measured above their pedestrian entrances, but two are taller when measured above ground, though they are neither all stone nor true obelisks.^[A] The tallest masonry structure in the world is the brick Anakonda eritish zavodi yilda Montana at 585 feet 1 ¹⁄₂ inches (178.35 m) tall. But this includes a 30-foot (9.1 m) non-masonry concrete foundation, leaving the stack's brick chimney at 555 feet 1 ¹⁄₂ inches (169.20 m) tall, only about 6 inches (15 cm) taller than the monument's 2015 height. If the monument's aluminum apex is also discounted, then the stack's masonry portion is 15 inches (38 cm) taller than the monument's masonry portion.^[12][B][L]

Xavfsizlik

Past profilli ha-ha wall surrounds the monument

In 2001, a temporary visitor security screening center was added to the east entrance of the Washington Monument in the wake of the 11 sentyabr hujumlari. The one-story facility was designed to reduce the ability of a terrorist attack on the interior of the monument, or an attempt to seize and hold it. Visitors obtained their timed-entry tickets from the Monument Lodge east of the memorial, and passed through metal detectors and bomb-sniffing sensors prior to entering the monument. After exiting the monument, they passed through a turnstile to prevent them from re-entering. This facility, a one-story cube of wood around a metal frame, was intended to be temporary until a new screening facility could be designed.^[17]

2014 yil 6 mart kuni Milliy kapital rejalashtirish komissiyasi approved a new visitor screening facility to replace the temporary one. The 785-square-foot (72.9 m²) facility will be two stories high and contain space for screening 20 to 25 visitors at a time. The exterior walls (which will be slightly frosted to prevent viewing of the security screening process) will consist of an outer sheet of o'q o'tkazmaydigan shisha yoki polikarbonat, a metal mesh insert, and another sheet of bulletproof glass. The inner sheet will consist of two sheets (slightly separated) of qatlamli shisha. A 0.5-inch (1.3 cm) airspace will exist between the inner and outer glass walls to help insulate the facility. Two (possibly three) geotermik issiqlik nasoslari will be built on the north side of the monument to provide heating and cooling of the facility. The new facility will also provide an office for National Park Service and United States Park Police staff. The structure is designed so that it may be removed without damaging the monument.^[111] The Amerika Qo'shma Shtatlarining tasviriy san'at komissiyasi approved the aesthetic design of the screening facility in June 2013.^[112]

A recessed trench wall known as a ha-ha has been built to minimize the visual impact of a security barrier surrounding the monument. Keyin 11 sentyabr hujumlari and another unrelated terror threat at the monument, authorities had put up a circle of temporary Jersey barriers to prevent large motor vehicles from approaching. The unsightly barrier was replaced by a less-obtrusive low 30-inch (76 cm) granite stone wall that doubles as a seating bench and also incorporates lighting. The installation received the 2005 Park/Landscape Award of Merit from the Amerika landshaft me'morlari jamiyati.^{[113][114][115]}

Tranzit

Vashington yodgorligi tomonidan xizmat qilinadi Smithsonian metro stantsiyasi.^[116]

Shuningdek qarang

• Bunker tepaligidagi yodgorlik
• Vashington shahridagi jamoat san'ati ro'yxati, 2-bo'lim
• Dunyodagi eng baland mustaqil binolar ro'yxati
• Dunyodagi eng baland minoralar ro'yxati
• Tuckahoe marmar
• Yule marmar

Izohlar

Adabiyotlar

Tashqi havolalar

• NPS rasmiy veb-sayti: Vashington yodgorligi
• "Milliy savdo markaziga ishonch: Vashington yodgorligi". Milliy savdo markaziga ishonch. Arxivlandi asl nusxasi 2011 yil 11-iyun kuni.
• Harper haftaligi multfilm, 1885 yil 21 fevral, rasmiy bag'ishlanish kuni
• Bugun tarixda - 6 dekabr
• Vashington milliy yodgorligi da Strukturalar
• Tarixiy Amerika binolarini o'rganish (HABS) № DC-428, "Vashington yodgorligi "
• Tarixiy Amerika muhandislik yozuvlari (HAER) № DC-5, "Vashington yodgorligi "
• Vashington yodgorligidagi savdo markazidagi tarix