钢框架梁柱腹板连接的有限元分析
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摘要
针对钢框架结构中梁柱节点在震害中的脆断破坏,利用有限元计算程序ANSYS对梁柱腹板连接试件模型进行循环加载计算,通过对试件滞回特性、节点域应力分布详细研究后得出,节点域有较好的延性和耗能能力,并揭示了节点发生脆断的原因缘于焊缝处剪应力集中,为该种连接钢框架的设计及理论分析提供了依据.
In view of the brittle fracture of beam-column connection in steel frame structure in earthquakes,a beam-column web connection is designed to be anayzed by FEM under circular loading.The hysteresis performance and stress distribution of connection and panel zone calculated systematically by FEM show that,panel zone has good ductility and energy dissipation,the brittle fracture of the connection starts at the stress concentrated zone in butt weld.A reference basis is provided for construction design and theoretical analysis of such connection frames.
In view of the brittle fracture of beam-column connection in steel frame structure in earthquakes,a beam-column web connection is designed to be anayzed by FEM under circular loading.The hysteresis performance and stress distribution of connection and panel zone calculated systematically by FEM show that,panel zone has good ductility and energy dissipation,the brittle fracture of the connection starts at the stress concentrated zone in butt weld.A reference basis is provided for construction design and theoretical analysis of such connection frames.
引文
[1]Dune K Miller.Lessons Learned from the NorthridgeEarthquake[J].Engineering Structures,1998,20(4/6):249.
[2]崔鸿超.日本兵库县南部地区地震震害综述[J].建筑结构学报,1996,17(1):2.CUI Hong-chao.Summary of The Earthquake Disas-ter in Hyogo-ken Hokubu,Japan[J].Journal ofBuilding Structures,1996,17(1):2.(in Chinese)
[3]de Lima LRO,de Andrade SAL,da Svellasco PCG.Experimental and Mechanical Model for Predictingthe Behaviour of Minor Axis Beam-to-column Semi-rigid Joints[J].International Journal of MechanicalScience,2002,44(4):1047.
[4]郝际平,李文岭.钢梁柱半刚性节点顶底角钢弱轴连接的有限元分析[J].土木工程学报,2007,40(9):36.HAO Ji-ping,LI Wen-ling.Finite Element Analysis forthe Top-and Seat Angle Minor Axis Connection of Semi-rigid Steel Beam-Column Joints[J].China Civil Engi-neering Journal,2007,40(9):36.(in Chinese)
[5]吴芸,彭少民,张其林.角钢连接钢框架抗震性能试验研究与数值分析[J].同济大学学报:自然科学版,2005,33(11):1438.WU Yun,PENG Shao-min,ZHANG Qi-ling.Experi-mental and Numerical Studies on Seismic Behaviorsof Steel Frames with Top-Seat and Double Web An-gel Connections[J].Journal of Tongji University:Natural Science Edition,2005,33(11):1438.(in Chinese)
[6]叶先磊,史亚杰.ANSYS工程分析软件应用实例[M].北京:清华大学出版社,2003.YE Xian-lei,SHI Ya-jie.ANSYS Project AnalysisSoftware Application Example[M].Beijing:Tsing-hua University Press,2003.(in Chinese)
[7]王万祯,顾强.钢框架梁柱栓焊节点的有限元分析[J].建筑结构,2002,32(9):57.WANG Wan-zhen,GU Qiang.Finite Element Analy-sis on Fracture Mechanism of Rigided Beam-columnConnections in Steel Frames[J].Building Structure,2002,32(9):57.(in Chinese)
[8]吴芸,张其林,王旭峰.钢框架抗震性能试验研究和数值分析[J].西安建筑科技大学学报:自然科学版,2006,38(4):486.WU Yun,ZHANG Qi-ling,WANG Xu-feng.Experi-mental and Numerical Studies on Seismic Behavior ofSteel Frame[J].J.Xi.an Univ.of Arch.&Tech:Natural Science Edition,2006,38(4):486.(in Chi-nese)
[9]李启才,苏明周,顾强,等.带悬臂梁段拼接的梁柱连接循环荷载试验研究[J].建筑结构学报2003,24(4):54.LI Qi-cai,SU Ming-zhou,GU Qiang,et al.Experi-mental Study of Steel Beam-to-column Connectionwith Cantilever Beams Plicing under Cyclic loadin[J].Journal of Building Structures,2003,24(4):54.(in Chinese)
[2]崔鸿超.日本兵库县南部地区地震震害综述[J].建筑结构学报,1996,17(1):2.CUI Hong-chao.Summary of The Earthquake Disas-ter in Hyogo-ken Hokubu,Japan[J].Journal ofBuilding Structures,1996,17(1):2.(in Chinese)
[3]de Lima LRO,de Andrade SAL,da Svellasco PCG.Experimental and Mechanical Model for Predictingthe Behaviour of Minor Axis Beam-to-column Semi-rigid Joints[J].International Journal of MechanicalScience,2002,44(4):1047.
[4]郝际平,李文岭.钢梁柱半刚性节点顶底角钢弱轴连接的有限元分析[J].土木工程学报,2007,40(9):36.HAO Ji-ping,LI Wen-ling.Finite Element Analysis forthe Top-and Seat Angle Minor Axis Connection of Semi-rigid Steel Beam-Column Joints[J].China Civil Engi-neering Journal,2007,40(9):36.(in Chinese)
[5]吴芸,彭少民,张其林.角钢连接钢框架抗震性能试验研究与数值分析[J].同济大学学报:自然科学版,2005,33(11):1438.WU Yun,PENG Shao-min,ZHANG Qi-ling.Experi-mental and Numerical Studies on Seismic Behaviorsof Steel Frames with Top-Seat and Double Web An-gel Connections[J].Journal of Tongji University:Natural Science Edition,2005,33(11):1438.(in Chinese)
[6]叶先磊,史亚杰.ANSYS工程分析软件应用实例[M].北京:清华大学出版社,2003.YE Xian-lei,SHI Ya-jie.ANSYS Project AnalysisSoftware Application Example[M].Beijing:Tsing-hua University Press,2003.(in Chinese)
[7]王万祯,顾强.钢框架梁柱栓焊节点的有限元分析[J].建筑结构,2002,32(9):57.WANG Wan-zhen,GU Qiang.Finite Element Analy-sis on Fracture Mechanism of Rigided Beam-columnConnections in Steel Frames[J].Building Structure,2002,32(9):57.(in Chinese)
[8]吴芸,张其林,王旭峰.钢框架抗震性能试验研究和数值分析[J].西安建筑科技大学学报:自然科学版,2006,38(4):486.WU Yun,ZHANG Qi-ling,WANG Xu-feng.Experi-mental and Numerical Studies on Seismic Behavior ofSteel Frame[J].J.Xi.an Univ.of Arch.&Tech:Natural Science Edition,2006,38(4):486.(in Chi-nese)
[9]李启才,苏明周,顾强,等.带悬臂梁段拼接的梁柱连接循环荷载试验研究[J].建筑结构学报2003,24(4):54.LI Qi-cai,SU Ming-zhou,GU Qiang,et al.Experi-mental Study of Steel Beam-to-column Connectionwith Cantilever Beams Plicing under Cyclic loadin[J].Journal of Building Structures,2003,24(4):54.(in Chinese)
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