高烈度區(qū)局部大跨度單跨復(fù)雜結(jié)構(gòu)罕遇地震下彈塑性分析
王劍文1，梁飛2，孫文波1
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（1 華南理工大學(xué)建筑設(shè)計研究院，廣州 510641；2 華南理工大學(xué)土木與交通學(xué)院，廣州 510641）［摘要］以某高烈度區(qū)既有局部大跨度單跨鋼筋混凝土框架結(jié)構(gòu)又同時存在大跨度單跨鋼結(jié)構(gòu)屋蓋的混合結(jié)構(gòu)為例，較為詳細地討論這類局部大跨度單跨復(fù)雜結(jié)構(gòu)在罕遇地震下的抗震性能。在彈塑性分析過程中通過VBA編程對梁、柱的配筋結(jié)果進行自動歸并，同時彈塑性分析模型材料參數(shù)與清華大學(xué)組織的鋼筋混凝土框架柱和整體框架擬靜力倒塌試驗結(jié)果進行了對比驗證。分析結(jié)果表明，基于《建筑抗震設(shè)計規(guī)范》（GB 50011—2010）合理設(shè)計的局部大跨度單跨（31m）框架結(jié)構(gòu)可以滿足“大震不倒”的性能化抗震目標(biāo)；大跨度單跨鋼結(jié)構(gòu)屋蓋的支座形式對所支承的框架結(jié)構(gòu)在罕遇地震下的層間位移角有一定影響。［關(guān)鍵詞］高烈度區(qū); 大跨度單跨框架結(jié)構(gòu); 罕遇地震; 彈塑性分析中圖分類號：TU313 文獻標(biāo)識碼：A 文章編號：1002-848X(2014)23-0065-06Elastic-plastic analysis of the complex structure with partial large-span and single-span under rare earthquake in high seismic intensity areaWang Jianwen1, Liang Fei2, Sun Wenbo1(1 Architectural Design and Research Institute, South China University of Technology, Guangzhou 510641, China; 2 School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, China)Abstract: A hybrid structure with partial large-span reinforced concrete single-span frame structure and large-span steel structure roof in the high seismic intensity area was taken as an example to provide a detailed discussion on seismic performance of complex structure with partial large-span and single-span under the rare earthquake. In elastic-plastic analysis, VBA program was used to automatically merge reinforcements of beams and columns. Elastic-plastic analysis model and material parameters were compared with pseudo-static collapse experimental results of the frame column and overall frame given by Tsinghua University. Results show that single-span frame structure with the partial large-span of 31m based on reasonable design under Code for seismic design of buildings (GB 50011—2010) can meet the performance-based seismic goal of no collapsing under rare earthquake. The bearing type of large-span single frame steel structure roof has a certain influence on the inter-story displacement angle of supporting frame structure under rare earthquake.Keywords:high seismic intensity area; large-span single-span frame structure; rare earthquake; elastic-plastic analysis作者簡介：王劍文，碩士，工程師，Email:tom_wang55@126.com。參考文獻［1］GB 50011—2010 建筑抗震設(shè)計規(guī)范［S］.北京：中國建筑工業(yè)出版社，2010.［2］GB 50010—2010 混凝土結(jié)構(gòu)設(shè)計規(guī)范［S］.北京：中國建筑工業(yè)出版社，2011.［3］PARK Y J, ANG A H S, WEN Y K. Seismic damage analysis of reinforced concrete buildings［J］. Journal of Structual Engineering, 1985,111(4):740-757.［4］FEMA-356 Prestandard and commentary for the seismic rehabilitation of buildings［Ｓ］. Washington D.C.：FEMA， 2000．［5］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)，2011，4１（11）：11-19.［6］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)，2011，4１（11）：19-23.
