蘇州中潤廣場主樓動力彈塑性時程分析
張雪峰
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(華東建筑設(shè)計研究院有限公司，上海 200002)［摘要］通過對蘇州中潤廣場主樓彈塑性時程分析，驗證結(jié)構(gòu)是否滿足“大震不倒”的設(shè)防水準(zhǔn)要求，尋找結(jié)構(gòu)薄弱部位和薄弱構(gòu)件，提出相應(yīng)的加強(qiáng)措施；同時，評價結(jié)構(gòu)在大震作用下的力學(xué)性能，研究罕遇地震作用下主要構(gòu)件的損傷和屈服情況，并對損傷程度做出性能評價，以指導(dǎo)結(jié)構(gòu)設(shè)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。計算結(jié)果表明，在給定地震波的罕遇地震作用下，結(jié)構(gòu)整體受力性能良好，能滿足罕遇地震下的抗震性能目標(biāo)。［關(guān)鍵詞］彈塑性時程分析；罕遇地震；塑性應(yīng)變；地震波中圖分類號：TU375.4文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2011)04-0064-05Elasto\|plastic time history analysis of Suzhou Zhongrun Square main buildingZhang Xuefeng(East China Architectural Design & Research Institute Co., Ltd., Shanghai 200002, China)Abstract:By elasto-plastic time history analysis, it was determined whether the structure of Suzhou Zhongrun Square is satisfied with the standard to guarantee no collapse under major earthquake. The weakness parts or components of the structure were found out. Corresponding strengthened measures were put forward in design process. In addition, the performance mechanics suffering major earthquakes was evaluated. The damaged or yielded state of main structural components was studied, and the degree of damage was evaluated when submitted to rarely earthquakes. Some reasonable suggestions were obtained for engineering design. The compute considering work progress, the compute of vibration mode and period, and the elasto-plastic time history analysis were concluded in the analysis process. Calculation results indicate that the structure has excellent seismic behaviors when affected by specified major earthquake wave, and can reach the requirement of seismic performance under the action of the rarely earthquake.Keywords:elasto-plastic time history analysis; rarely earthquakes; plastic strain; earthquake wave作者簡介：張雪峰，工程師，一級注冊結(jié)構(gòu)工程師，Email:zxfsuzhou@163.com。參考文獻(xiàn)［1］張雪峰，田宇，袁興方. 蘇州中潤廣場主樓結(jié)構(gòu)的性能設(shè)計［J］. 結(jié)構(gòu)工程師，2010，26(2)：1-6.［2］GB50011—2001 建筑抗震設(shè)計規(guī)范［S］.北京：中國建筑工業(yè)出版社，2001.［3］徐培福. 復(fù)雜高層建筑結(jié)構(gòu)設(shè)計［M］. 北京：中國建筑工業(yè)出版社，2005.［4］龔思禮. 建筑抗震設(shè)計手冊［M］.2版.北京：中國建筑工業(yè)出版社，2002.［5］汪大綏，李志山，李承銘，等. 復(fù)雜結(jié)構(gòu)彈塑性分析在ABAQUS軟件中的實現(xiàn)［J］.建筑結(jié)構(gòu)，2007，37(5):92-95.
