（华东建筑设计研究院有限公司， 上海 200011)

［摘要］上海浦东国际机场卫星厅的中央大厅结构复杂，布置有耗能型屈曲约束支撑，为获得罕遇地震下的结构性能水平以及屈曲约束支撑的耗能情况，采用动力弹塑性时程分析方法对其进行了分析计算。通过动力特性、基底剪力和顶点位移对比分析，验证了模型及计算结果的合理性。根据分析结果可知，层间位移角满足规范要求，构件损伤满足罕遇地震下结构性能设计要求。在罕遇地震下，屈曲约束支撑的耗能优异，不同地震波作用下耗能占比差异较大。将BRB耗能占比最优区间控制在合理的层间位移角范围内，可最大限度地发挥BRB耗能水平。

［关键词］性能分析； 弹塑性时程分析； 屈曲约束支撑； 消能减震

中图分类号：TU248-6文献标识码：A文章编号：1002-848X(2017)12-0023-06

Seismic performance analysis on energy dissipation satellite hall of Shanghai Pudong International Airport three phase expansion project

Xu Ziran， Su Jun， Cui Jiachun， An Dongya

(East China Architectural Design & Research Institute Co., Ltd., Shanghai 200011, China)

Abstract:The structure of the central hall of Shanghai Pudong International Airport satellite hall building is complex, and it is arranged with energy dissipation type buckling-restrained braces. In order to obtain the structural performance level under the rare earthquake and the energy dissipation of buckling-restrained braces (BRB), the dynamic elastic-plastic time-history analysis method was used to analyze and calculate the structure. Through the comparisons of dynamic characteristics, base shear and vertex displacement, the rationality of the model and the calculation results were verified. The calculation results show that the interlayer displacement angle can satisfy the requirement of the code, and the damage of the member meets the design requirements under the rare earthquake. Energy dissipation performance of BRB is excellent under the rare earthquake, and the energy dissipation ratio of BRB greatly varies under actions of different earthquake waves. The energy dissipation level of BRB can be maximized through controlling the optimal interval of BRB energy dissipation ratio within the reasonable range of the interlayer displacement angle.

Keywords:performance analysis; elastic-plastic time-history analysis; buckling-restrained brace; energy dissipation

* 国家自然科学基金项目（51478356）。

作者简介：徐自然，硕士，工程师，Email：ziran_xu@arcplus.com.cn。