- 摘 要
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（華東建筑設(shè)計研究院有限公司， 上海 200011)
［摘要］上海浦東國際機場衛(wèi)星廳的中央大廳結(jié)構(gòu)復(fù)雜，布置有耗能型屈曲約束支撐，為獲得罕遇地震下的結(jié)構(gòu)性能水平以及屈曲約束支撐的耗能情況，采用動力彈塑性時程分析方法對其進行了分析計算。通過動力特性、基底剪力和頂點位移對比分析，驗證了模型及計算結(jié)果的合理性。根據(jù)分析結(jié)果可知，層間位移角滿足規(guī)范要求，構(gòu)件損傷滿足罕遇地震下結(jié)構(gòu)性能設(shè)計要求。在罕遇地震下，屈曲約束支撐的耗能優(yōu)異，不同地震波作用下耗能占比差異較大。將BRB耗能占比最優(yōu)區(qū)間控制在合理的層間位移角范圍內(nèi)，可最大限度地發(fā)揮BRB耗能水平。
［關(guān)鍵詞］性能分析； 彈塑性時程分析； 屈曲約束支撐； 消能減震
中圖分類號：TU248-6文獻標(biāo)識碼：A文章編號：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
* 國家自然科學(xué)基金項目（51478356）。
作者簡介：徐自然，碩士，工程師，Email：ziran_xu@arcplus.com.cn。
