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（中國江蘇國際經(jīng)濟(jì)技術(shù)合作集團(tuán)有限公司， 南京 210002）
［摘要］合理的結(jié)構(gòu)體系和抗震性能設(shè)計(jì)是超高層建筑結(jié)構(gòu)設(shè)計(jì)的關(guān)鍵。揚(yáng)中金源大廣場2#樓采用典型的部分框支剪力墻結(jié)構(gòu)體系，建筑高度為118-5m，為高度B級(jí)的超限高層建筑；同時(shí)存在高度超限、扭轉(zhuǎn)不規(guī)則、剛度突變、構(gòu)件間斷4項(xiàng)不規(guī)則項(xiàng)。首先介紹了場地條件、基礎(chǔ)設(shè)計(jì)和結(jié)構(gòu)選型，討論了結(jié)構(gòu)超限情況，在上述基礎(chǔ)上，確定了結(jié)構(gòu)抗震性能目標(biāo)；隨后開展了多遇地震作用下的彈性分析、設(shè)防地震和罕遇地震作用下的關(guān)鍵構(gòu)件驗(yàn)算與彈塑性分析，在各個(gè)水準(zhǔn)地震作用下，結(jié)構(gòu)各項(xiàng)性能指標(biāo)均能達(dá)到預(yù)期抗震性能目標(biāo)的要求；最后，針對高度、扭轉(zhuǎn)和剛度突變等超限問題，提出了計(jì)算與設(shè)計(jì)措施。
［關(guān)鍵詞］揚(yáng)中金源大廣場； 超限高層建筑； 框支剪力墻結(jié)構(gòu)； 抗震性能化設(shè)計(jì)； 技術(shù)措施
中圖分類號(hào)：TU355文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2019)07-0066-07
Seismic design of out-of-code high-rise No.2 tower of Yangzhong Jinyuan Square
Ji Xinqiang, Kong Chen
（China Jiangsu International Economic and Technical Cooperation Group Co., Ltd., Nanjing 210002, China）
Abstract:Proper structural system and performance-based seismic design are the key issues in designing super high-rise building structures. No.2 Tower of Yangzhong Jinyuan Square adopts partial frame-supported shear walls structure system, which is B-grade out-of-code high-rise building with architectural height of 118-5m. There are four irregular items in the building, including height exceeding code limitation, torsional irregularity, abrupt change in stiffness and component discontinuity. Firstly, the site conditions, foundation design and structural form selection were introduced and out-of-code conditions of the structure were discussed, on the basis of which the seismic performance objectives were ascertained. Then the elastic analysis under frequent earthquake, the elastic-plastic analysis and key components checking under fortification and rare earthquakes were carried out. Under every seismic effect level, all the performance indexes could meet the expected seismic performance targets. Lastly, according to the out-of-code issues in height, torsion and stiffness, the calculation and design measures were proposed.
Keywords:Yangzhong Jinyuan Square; out-of-code high-rise building; frame-supported shear wall structure; performance-based seismic design; technical measure
作者簡介：季新強(qiáng)，碩士，高級(jí)工程師，一級(jí)注冊結(jié)構(gòu)工程師，Email:xinqiangj@sina.com。
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