- 摘 要
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（1 深圳市華陽國際工程設計股份有限公司， 上海 201100； 2 同濟大學土木工程學院， 上海 200092）
［摘要］以上海某擬建項目為例，基于多遇地震作用下構件應力比基本接近、結構滿足規(guī)范要求，分別對Q345，Q460，Q690三種不同強度鋼材的鋼框架中心支撐結構在多遇地震、罕遇地震作用下的抗震性能進行計算分析，其中Q690鋼結構在1～8層采用了屈曲約束支撐（BRB）。結果表明：在多遇地震、罕遇地震作用控制的情況下，采用高強度鋼材并適當布置BRB能使鋼結構具有較好的抗震性能和經(jīng)濟性。
［關鍵詞］高強鋼；屈曲約束支撐；抗震性能；耗能性能；經(jīng)濟性
中圖分類號：TU318，TU391文獻標識碼：A文章編號：1002-848X(2021)07-0073-05
Seismic performance analysis and economic evaluation of high-strength steel structure
QI Junshuai1, YANG Shujie2, CHEN Chen2, WANG Yanbo2
(1 Shenzhen CAPOL International ＆ Associates Co．， Ltd.， Shanghai 201100, China; 2 College of Civil Engineering， Tongji University， Shanghai 200092， China)
Abstract:Taking a proposed project in Shanghai as an example, based on the principle that the stress ratios of structural element designed for frequent earthquakes were basically close and the structure meets the requirements of the code. The seismic performance of the steel frame-center support structure of three different strength steels of Q345, Q460 and Q690 was calculated and analyzed under frequent earthquake and rare earthquake. Among them, the 1st to 8th floors of the Q690 steel structure adopted buckling restraint brace(BRB). The results show that: under the control of frequent earthquake and rare earthquake, the use of high-strength steel and the appropriate arrangement of BRB layouts can provide the steel structure with better seismic performance and economy.
Keywords:high strength steel;buckling restraint brace;seismic performance;energy dissipation performance;economy
*十三五國家重點研發(fā)計劃（51408428）。
作者簡介：齊軍帥，學士，高級工程師，一級注冊結構工程師，Email:qijunshuai@capol.cn；通信作者：王彥博，博士，助理教授，碩士生導師，Email: ybwang@#edu.cn。
