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金如元，趙偉，郭健，史小偉

(江蘇省建筑設(shè)計研究院有限公司， 南京 210029)

 

［摘要］針對某大底盤雙塔超限高層結(jié)構(gòu)，采用基于性能的設(shè)計方法進(jìn)行抗震設(shè)計。通過在小震、中震、大震作用下的彈性和彈塑性分析，了解該結(jié)構(gòu)的動力特性和破壞特征。計算結(jié)果顯示因雙塔對稱布置，受力較為合理，具有較強(qiáng)的抗震性能，滿足延性設(shè)計的要求，達(dá)到了小震不壞、中震可修、大震不倒的抗震設(shè)防目標(biāo)。

［關(guān)鍵詞］超限高層建筑；基于性能設(shè)計方法；彈塑性時程分析

中圖分類號：TU973.2        文獻(xiàn)標(biāo)識碼：A        文章編號：1002-848X(2013)04-0050-05

 

Jin Ruyuan, Zhao Wei, Guo Jian, Shi Xiaowei

(Jiangsu Provincial Architectural Design & Research Institute Ltd., Nanjing 210029, China)

 

Abstract: The seismic design of a large-base-slab and twin-tower tall building beyond the code was presented using the performance-based design method. The dynamic characteristics and failure characteristics of the structure were studied by elastic computation and dynamic elastic-plastic time history analysis under different level earthquakes. The results show that the structure has an advantage of reasonable stress as the twin towers are symmetrically arranged, thus the seismic performance of the structure is good, and the requirement of ductility design of structure is satisfied. It can fulfill the seismic fortification criterion “no damage under minor earthquake, repairable under moderate earthquake, no collapse under rare earthquake”.

Keywords: tall building beyond the code; performancebased design method; elastic-plastic time history analysis

作者簡介：金如元，教授級高級工程師,Email：king_Ry@163.com。

 

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