鋼筋混凝土框架結(jié)構(gòu)擬靜力倒塌試驗研究及數(shù)值模擬競賽Ⅲ: 模擬結(jié)果分析*
中國建筑學(xué)會建筑結(jié)構(gòu)防倒塌專業(yè)委員會
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[摘要]為研究汶川地震中鋼筋混凝土框架結(jié)構(gòu)震害機理,清華大學(xué)開展了鋼筋混凝土框架結(jié)構(gòu)擬靜力倒塌的系列試驗研究,包括1個3層4跨RC框架、2個關(guān)鍵梁柱節(jié)點和4個關(guān)鍵框架柱。結(jié)合試驗舉行了相應(yīng)的數(shù)值模擬分析競賽,并將試驗和數(shù)值模擬結(jié)果全部在互聯(lián)網(wǎng)上公布,供有關(guān)科研和工程人員參考。本文介紹了鋼筋混凝土框架柱、節(jié)點和整體框架的數(shù)值模擬競賽結(jié)果,以及相應(yīng)的結(jié)論和建議。[關(guān)鍵詞]汶川地震; 框架; 倒塌; 鋼筋混凝土; 數(shù)值模擬中圖分類號:TU375文獻標識碼:A文章編號:1002848X(2012)11002704Pseudo-static collapse experiments and numerical prediction competition of RC frame structure Ⅲ: simulation results analysisCollapse Prevention Committee of Architectural Society of ChinaAbstract: In order to investigate the seismic damage mechanism of reinforced concrete (RC) frame structures during the Wenchuan Earthquake, a series of pseudo static collapse experiments of RC frame structure were carried out by Tsinghua University, including one 3 story 4 span RC frame, two key beam column joints and four key columns. Numerical prediction competition is also conducted together with the tests. The results of the experiments and numerical simulations are published on the internet, which can be freely downloaded by researchers and engineers. The results of numerical simulation competition for the RC columns, joints and frames are introduced, and corresponding conclusions and suggestions are proposed.Keywords: Wenchuan Earthquake; frame; collapse; reinforced concrete; numerical simulation*國家自然科學(xué)基金項目(90815025,51178249,51178250),國家科技支撐計劃課題(2009BAJ28B01),工程院重大咨詢項目(2010-ZD-4),教育部新世紀優(yōu)秀人才支持計劃資助 (NCET-10-0528)。參考文獻[1] 陸新征, 葉列平, 潘鵬, 等. 鋼筋混凝土框架結(jié)構(gòu)擬靜力倒塌試驗研究及數(shù)值模擬競賽Ⅰ:框架試驗[J]. 建筑結(jié)構(gòu), 2012,42(11):19-22,26.[2] 陸新征, 葉列平, 潘鵬, 等. 鋼筋混凝土框架結(jié)構(gòu)擬靜力倒塌試驗研究及數(shù)值模擬競賽Ⅱ: 關(guān)鍵構(gòu)件試驗[J]. 建筑結(jié)構(gòu),2012,42(11):23-26.