剪力墙内支撑布置方案对超高层建筑结构抗震性能的影响*
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（1 清华大学土木工程安全与耐久教育部重点实验室，北京 100084; 2 北京市建筑设计研究院有限公司，北京 100045）
［摘要］以某超高层巨型框筒+核心筒结构为例，分别采用两种不同的剪力墙内支撑布置方案，通过基本动力特性分析、大震弹塑性分析和抗倒塌能力分析，比较了剪力墙内支撑布置对超高层建筑结构抗震性能的影响。研究表明，剪力墙内支撑对结构大震下的位移响应有一定的积极影响，能够显著提高结构的抗倒塌安全储备。建议超高层建筑结构设计时进行抗倒塌分析，对易倒塌层墙体进行内支撑加强，以提高抗倒塌安全储备。［关键词］超高层建筑; 剪力墙内支撑; 弹塑性分析; 抗倒塌分析; 抗倒塌安全储备中图分类号：TU973.2 文献标识码：A 文章编号：1002-848X(2016)03-0001-05
Influence of the arrangement of embedded brace in shear wall on the seismic performance of a super-tall buildingLiu Bin1, Yang Weibiao2, Lu Xinzheng1, Chang Weihua2, Ye Lieping1,Qi Wuhui2, Gong Zhenchao2, Tian Shichuan2(1 Key Laboratory of Civil Engineering Safety and Durability of China Ministry of Education, Tsinghua University, Beijing 100084, China; 2 Beijing Institute of Architectural Design, Beijing 100045, China)Abstract:A super-tall building with mega framed-tube and corewall was taken as an example. Two different schemes of embedded brace in shear wall were adopted. The influence of the embedded brace in shear wall on the seismic performance of super-tall buildings was compared through the analysis of basic dynamic characteristics, the elasto-plastic analysis under the rare earthquake and the collapse capability analysis. The research shows that the embedded brace in shear wall has a positive effect on the displacement response of the structure under the rare earthquake, and can significantly improve the structure's safety reserve for collapse resistance. It is suggested that in the structural design of super-tall buildings, the collapse analysis should be carried out and the embedded brace should be set in shear wall of weak layers in order to improve the safety reserve of collapse resistance.Keywords:super-tall building; embedded brace in shear wall; elasto-plastic analysis; collapse analysis; safety reserve for collapse resistance
*国家自然科学基金(51222804，91315301，51261120377)，北京市自然科学基金(8142024)。作者简介：刘斌，硕士，Email：yuzhouliubin@163.com。
