南通熔盛大廈辦公樓彈塑性時程分析
何誠，張曉光
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何誠，張曉光 (同濟大學建筑設計研究院（集團）有限公司, 上海 200092)［摘要］通過對南通熔盛大廈辦公樓進行罕遇地震下的彈塑性分析，驗證結(jié)構是否滿足大震下的抗震性能目標，尋找結(jié)構薄弱部位和薄弱構件，提出相應的加強措施；同時，評價結(jié)構在大震下的力學性能，研究罕遇地震作用下主要構件的損傷和屈服情況，并對損傷程度做出性能評價，以指導結(jié)構設計。此分析過程分為施工過程計算、振型及周期計算、彈塑性時程分析三部分。計算結(jié)果表明，在給定地震波的罕遇地震作用下，結(jié)構整體受力性能良好，能滿足罕遇地震下的抗震性能目標。［關鍵詞］彈塑性時程分析； 抗震性能目標中圖分類號：TU375.4 文獻標識碼：A 文章編號：1002-848X(2013)08-0001-05Nonlinear time-history analysis on the office building of Rongsheng Dasha in NantongHe Cheng, Zhang Xiaoguang(Architectural Design & Research Institute of Tongji University (Group) Co., Ltd., Shanghai 200092, China)Abstract:By nonlinear time-history analysis, it was determined whether the office building of Rongsheng Dasha in Nantong can fulfill the performance target when suffered major earthquakes. The potential weak parts were also found out, and the corresponding strengthen methods were used in design process. In addition, the seismic resisting mechanics of the whole structure was evaluated, the damage of main structural element was studied, and the degrees of damage were evaluated. The whole analysis procedure included the construction simulation analysis, computation of vibration mode, and the nonlinear time-history analysis. The results indicate that this building can fulfill the performance target when suffered major earthquakes represented by selected acceleration time histories.Keywords: nonlinear time-history analysis; earthquake performance target參考文獻［1］CSI. CSI analysis reference manual for SAP2000, ETABS, and SAFE ［M］. Berkeley, California: Computers and Structures, INC, 2009.［2］FEM356 Prestandard and commentary for the seismic rehabilitation of buildings ［S］. ASCE, 2000.［3］王亞勇. 結(jié)構抗震時程分析法中地震波的選擇［J］. 工程抗震，1988（4）：1522.［4］王亞勇，程民憲，劉小弟. 結(jié)構抗震時程分析法輸入地震記錄的選擇方法及其應用［J］. 建筑結(jié)構，1992，22（3）：37.
