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(1 中國建筑西南設(shè)計(jì)研究院有限公司，成都 610081； 2 重慶大學(xué)土木工程學(xué)院，重慶 400045)

［摘要］   一平面及立面均不規(guī)則的不對(duì)稱連體高層建筑結(jié)構(gòu)采用框架-剪力墻結(jié)構(gòu)體系，通過EPDA軟件進(jìn)行了三維彈塑性時(shí)程分析，對(duì)揭示出的薄弱部位進(jìn)行了重點(diǎn)加強(qiáng)，對(duì)關(guān)鍵構(gòu)件進(jìn)行大震下的配筋復(fù)核與設(shè)計(jì)。在完成數(shù)值計(jì)算后，又進(jìn)行了1∶30縮尺的整體模型振動(dòng)臺(tái)試驗(yàn)，得到了結(jié)構(gòu)的動(dòng)力特性、位移反應(yīng)、樓層的最大位移與平均位移之比以及在各級(jí)地震下結(jié)構(gòu)的裂縫開展情況。試驗(yàn)結(jié)果表明：雖然結(jié)構(gòu)存在剛度突變、扭轉(zhuǎn)不規(guī)則及樓板大開洞這三項(xiàng)超限情況，但通過分析及合理設(shè)計(jì)，并采取抗震加強(qiáng)措施，能使結(jié)構(gòu)滿足預(yù)設(shè)的性能目標(biāo)。
［關(guān)鍵詞］   不對(duì)稱連體；   性能化設(shè)計(jì)；   彈塑性分析；   振動(dòng)臺(tái)試驗(yàn)

Nonlinear analysis and shaking table test for an unsymmetrical twin-tower high-rise building in Chengdu
Li Changhong1, Chen Hongyan1, Bi Qiong1, Chen Zhengxiang1, Zhang Chuan2, Fu Jianping2, Chen Haoping2
(1 China Southwest Architectural Design and Research Institute Co., Ltd., Chengdu 610081, China;
2 College of Civil Engineering, Chongqing University, Chongqing 400045, China)
Abstract:Frame-shear wall system was adopted in the structure of an unsymmetrical twin-tower high-rise building with irregular plane and elevation. The weak zones identified by the three-dimensional elastic-plastic time-history analysis with EPDA were strengthened, and the reinforcements of key members were rechecked and redesigned according to the results under large earthquakes. After the numerical computation, the shaking table test of a 1∶30 scaled model was carried out, the dynamic characteristics, displacements, the ratio between maximum and average displacements and the cracks under different magnitude earthquakes were obtained. The test results show that although there were 3 irregularities in the structure which were stiffness mutation, irregular plane and large opening in floor, the structure can satisfy the pre-set performance objectives through rational design and seismic measures.
Keywords:unsymmetrical twin-tower; performance-based seismic design; elastic-plastic analysis; shaking table test
作者簡(jiǎn)介：李常虹，碩士，工程師，Email:lid9@xnjz.com。

參考文獻(xiàn)
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［5］   重慶大學(xué)土木工程學(xué)院，中國建筑西南設(shè)計(jì)研究院. 成都市天府軟件園三期工程模型振動(dòng)臺(tái)試驗(yàn)報(bào)告［R］. 2009.