基于大震結果的結構抗震性能設計實例分析
林超偉1,2,王興法1
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(1 香港華藝設計顧問(深圳)有限公司,深圳 518057; 2 廣州大學土木工程學院,廣州 510006)[摘要]根據(jù)結構的大震彈塑性分析結果找出薄弱部位并提出相應的抗震加強措施是結構抗震性能設計的主要內容之一。通過4個實際的工程案例,結合各自的結構特點,剖析其在大震中出現(xiàn)薄弱部位的原因,并提出了有針對性的調整或加強措施。對調整后結構進行重新計算的結果表明,調整前的結構薄弱部位得到明顯的改善,驗證了采取的加強措施的有效性。[關鍵詞]抗震性能設計; 薄弱部位; 結構特點; 加強措施中圖分類號:TU318+.2 文獻標識碼:A 文章編號:1002-848X(2014)22-0001-06Case study of performance-based seismic design based on the analysis result under the rare earthquakeLin Chaowei1,2, Wang Xingfa1(1 Hong Kong Hua Yi Design Consultants(Shenzhen) Ltd., Shenzhen 518057, China; 2 School of Civil Engineering, Guangzhou University, Guangzhou 510006, China)Abstract:One of the most significant parts of performance-based seismic design is to find weak parts of the structure and propose appropriate seismic strengthening measures according to results of elastic-plastic analysis under the rare earthquake. Taking four real projects as examples, the reasons causing weak parts under the rare earthquake were adequately explained combined with studying the structural characteristics. Moreover, according to the problems mentioned, specific strengthening measures were suggested. The re-calculation results show that significant improvement of the structural weak parts is obtained, which further validates the reasonableness of the specific strengthening measurements.Keywords: performance-based seismic design; weak part; structural characteristic; strengthening measure作者簡介:林超偉, 博士研究生, 高級工程師,一級注冊結構工程師, Email:wei65125036@163.com。參考文獻[1]GB 50011—2010 建筑抗震設計規(guī)范[S]. 北京:中國建筑工業(yè)出版社, 2010.[2]JGJ 3—2010 高層建筑混凝土結構技術規(guī)程[S]. 北京:中國建筑工業(yè)出版社, 2011.[3]林超偉, 王興法, 汪洋, 等. 某特別不規(guī)則的框支剪力墻結構抗震性能設計[J]. 建筑結構,2012,42(S2):270-273.[4]CECS 160∶2004 建筑工程抗震性態(tài)設計通則(試用)[S]. 北京:中國計劃出版社, 2004.[5]虹灣花園結構超限高層抗震設計可行性論證報告[R]. 深圳:香港華藝設計顧問(深圳)有限公司, 2012.[6]林超偉. 基于MIDAS BUILDING軟件的動力彈塑性方法應用[J]. 工程抗震與加固[7]深圳灣生態(tài)科技園四區(qū)結構超限高層抗震設計可行性論證報告[R]. 深圳:香港華藝設計顧問(深圳)有限公司, 2012.