Q890Dsawv cev rau qhov kawg ntawm cov qib steel qauv siv hauv kev tsim kho, nrog rau qhov tsawg kawg nkaus lub zog ntawm 890 MPa thiab lav qis - kub toughness (-20℃cuam tshuam). Nws siv nyob rau hauv super siab- cov tsev nce siab (feem ntau yog cov siab tshaj 400-500 meters) yog qhov tshwj xeeb thiab muaj tswv yim, uas tau tsav los ntawm qhov xav tau kom kov yeej cov kev txwv tshwj xeeb uas ua los ntawm cov hlau tsis muaj zog.
Nov yog qhov tshwj xeeb, tsom rau cov ntawv thov Q890D hauv cov tsev siab siab -nce:
1. Mega-Kem nyob rau hauv Cov Pem Hauv Ntej (Cov Ntawv Thov Tseem Ceeb)
Scenario:Thawj 20-40 zaj dab neeg ntawm ib tug 600+ 'meter' pej thuam, qhov twg lub ntiajteb txawj nqus load los ntawm saum toj no yog siab tshaj.
Teeb meem nrog qis-Grade Steels: Siv Q460 lossis Q690 yuav xav tau kab ntoo khaub lig- ntu loj heev uas lawv yuav tsis lees txais cov nqi xauj tsev thiab ua kom lub tsev seismic loj.
Kev daws nrog Q890D:
Nws tso cai rau kom txo qis hauv kab ke hla- ntu ntu thaum txhawb nqa tib lub nra hnyav.
Khaws qhov chaw lag luam tseem ceeb ntawm cov plag tsev qis.
Txo qhov hnyav tag nrho ntawm lub tsev, uas nyob rau hauv lem txo qhov xav tau ntawm lub hauv paus thiab lateral systems.
2. Cov Nodes tseem ceeb hauv Outrigger thiab Belt Truss Systems
Scenario:Cov qib uas "outrigger" trusses lossis "siv" trusses txuas lub tsev lub hauv paus mus rau ib puag ncig mega-kaum. Cov no yog qhov tseem ceeb tshaj plaws load- hloov cov ntsiab lus nyob rau hauv tag nrho cov txheej txheem.
Teeb meem:Cov kev sib txuas no yuav tsum hloov cov colossal shear rog thiab lub sijhawm los ntawm cov tub ntxhais mus rau txhua kab kom tiv taus cua thiab seismic loads. Lawv raug kev nyuaj siab, ntau yam -cov kev taw qhia.
Kev daws nrog Q890D:
Siv rau cov gusset daim hlau, txuas nodes, thiab cov neeg chord hnyav tshaj nyob rau hauv lub truss nws tus kheej.
Nws lub zog ultra- siab tso cai rau cov khoom sib xyaw ua ke kom haum rau hauv qab nthab / cov khoom siv tshuab thaum tuav lub zog loj.
Nws lub siab tawv yog qhov tseem ceeb rau cov pob txha no - cov ntsiab lus tseem ceeb uas tsis ua haujlwm yuav muaj kev puas tsuaj loj.
3. Core Phab Ntsa Shear Txuas lossis Coupling Beams (hauv Cov Txheej Txheem Tshaj Tawm)
Scenario:Hauv seismic-cov qauv siv tiv thaiv siv "cov phab ntsa txuas txuas" lossis "txhim kho qhov txuas txuas" ua lub zog-dissipating fuses.
Teeb meem:Cov khoom no yog tsim los ua kom muaj zog thiab nqus av qeeg kom txhob txwm ua. Lawv yuav tsum muaj zog heev thiab ductile kom ua tau zoo.
Kev daws nrog Q890D: Thaum siv rau hauv cov ntawv thov no, nws qhov sib xyaw ua ke ntawm lub zog muaj zog heev thiab lub zog zoo tso cai rau nws nqus tau ntau lub zog ntawm hysteretic yam tsis muaj pob txha, ua rau nws yog ultra- siab- cov khoom ua haujlwm rau seismic resiliency.
4. Pile Caps and Foundations for Record-High Towers
Scenario:Cov qauv kev hloov pauv nruab nrab ntawm lub txaj txaj / caissons thiab tus pej thuam mega -kab.
Teeb meem: Concentrating lub load ntawm ib tug 800+ meter lub tsev mus rau hauv ib tug tsawg tus naj npawb ntawm lub hauv paus ntsiab lus tsim kom muaj kev ntxhov siab nyob rau hauv lub zos uas tshaj lub peev xwm ntawm cov pa steels.
Kev daws teeb meem nrog Q890D: Siv rau hauv cov phaj sab saum toj thiab stiffeners ntawm cov hlau loj loj lub kaus mom kom faib cov kab ke mus rau hauv lub hauv paus pawg yam tsis tau ua tsis tiav vim kev coj tus kheej lossis xuas nrig ntaus.
5. Heavy Transfer Trusses ntawm Mechanical/Skip Floors
Scenario:Cov plag tsev uas yuav tsum tau hloov txoj kev thauj khoom los ntawm cov kab ke saum toj no mus rau ib kab sib txawv ntawm kab hauv qab, feem ntau ntawm cov cuab yeej siv tshuab.
Teeb meem:Cov trusses nqa tag nrho cov khoom thauj ntawm ntau cov dab neeg saum toj no.
Kev daws teeb meem nrog Q890D: Tso cai rau cov tswv cuab sib sib zog nqus ntawm cov trusses kom nyob qis li qhov ua tau, ua kom lub taub hau loj tshaj plaws thiab khaws cia kev ua haujlwm ntawm cov tshuab hauv pem teb.
Kev Tsim Nyog Tsim Nyog: Vim Li Cas Siv Cov Khoom Siv Zoo Li No?
Economy of Space: Tus neeg tsav tsheb overriding. Tus nqi xauj tsev ntawm kev khaws cia square footage ntawm cov plag tsev qis tuaj yeem ua pov thawj cov khoom siv siab.
Kev txo qis Cascade: Siv Q890D hauv 10 kab tseem ceeb tuaj yeem txuag tau ntau txhiab tons ntawm cov hlau. Qhov no txo:
Foundation loj thiab nqi.
Seismic inertial zog.
Load ntawm lub lateral system.
Constructability: Cov khoom me me, sib zog ua kom yooj yim rau kev tsim, thauj, thiab txhim kho, muaj peev xwm ua kom muaj kev tsim kho sai.
Cov kev txwv tseem ceeb thiab cov nyom ntawm kev siv Q890D
Nws daim ntawv thov tsis yog tsis muaj teeb meem tseem ceeb:
Extreme Fabrication Demands:
Vuam yog qhov nyuaj tshaj plaws. Yuav tsum tau tshwj xeeb, ultra- siab- lub zog consumables (xws li, rau 890 MPa steel), tsis tshua muaj kub preheat kub, thiab stringent ncej-weld heat treatment (PWHT) kom tsis txhob hydrogen cracking thiab khaws toughness nyob rau hauv lub tshav kub- cuam tshuam cheeb tsam (HAZ).
Kev txiav yuav tsum muaj cov txheej txheem precision (laser, plasma) kom tsis txhob tawv tawv.
Kev Tswjhwm Zoo: Yuav tsum tau 100% qib siab tsis yog-Kev kuaj kev puas tsuaj (xws li Phased Array UT).
Tsim Complexity:
Cov kws kho tsheb yuav tsum suav txog qhov txo cov ductility piv rau cov qib qis.
Kev sib txuas tsim yuav tsum zam kom tsis txhob muaj kev ntxhov siab uas tuaj yeem ua rau tawg tawg.
Kev tsim kev tiv thaiv hluav taws yog qhov tseem ceeb dua, vim tias siab - steels muaj zog poob lub zog sai dua ntawm qhov kub siab.
Nqi & Khoom:
Tus nqi ntawm cov khoom yog exponentially siab dua Q460 los yog Q690.
Nws yog ua los ntawm -rau- xaj khoom tshwj xeeb nrog cov neeg xa khoom thoob ntiaj teb txwv, cuam tshuam rau lub sijhawm ntawm kev yuav khoom.
Xaus
Q890D tsis yog ib qho dav dav - cov khoom siv hauv tsev. Hauv cov tsev siab siab- nce siab, nws yog qhov "spot-weld" cov khoom siv uas siv rau hauv ib qho kev ua haujlwm ntawm tes- qhov chaw tseem ceeb, muaj kev ntxhov siab heev uas nws cov khoom tshwj xeeb daws cov teeb meem tsis txaus ntseeg ntawm qhov chaw, qhov hnyav, thiab kev quab yuam.
Nws siv yog lub cim tseem ceeb ntawm kev thawb cov ciam teb ntawm kev tsim vaj tsev thiab kev tsim vaj tsev, feem ntau pom tsuas yog hauv thaj chaw, cov ntaub ntawv - nrhiav cov pej thuam xws li Shanghai Tower, Ping Ib Lub Chaw Nyiaj Txiag, lossis yav tom ntej tau npaj siab mega - cov qauv siab, qhov twg tag nrho cov phiaj xwm kev lag luam thiab kev lag luam ambition ua pov thawj nws cov nqi txaus ntshai thiab nyuaj.