地震作用下多层钢筋混凝土框架结构连续倒塌模拟
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摘要
本文按照我国现行混凝土结构设计规范设计的5层钢筋混凝土框架进行了连续倒塌仿真,采用非线性动力有限元程序LS-DYNA软件,模拟其在不同工况水平地震波下的损伤演化,分析了其抗连续倒塌能力。结果表明:柱应变沿长跨由外至内方向减小,角柱破坏威胁最大,中部柱破坏威胁最小。
The progressive collapse of a typical Chinese 5-story reinforced concrete(RC)frame was analyzed.The frame in horizontal seismic damage evolution was simulated by the nonlinear dynamic finite element program LS-DYNA software under different working conditions.Results show that the column strain reduces along the long span from the outer to the inner direction,corner column destruction threat is largest,central column destruction threat least.
The progressive collapse of a typical Chinese 5-story reinforced concrete(RC)frame was analyzed.The frame in horizontal seismic damage evolution was simulated by the nonlinear dynamic finite element program LS-DYNA software under different working conditions.Results show that the column strain reduces along the long span from the outer to the inner direction,corner column destruction threat is largest,central column destruction threat least.
引文
[1]Ellingwood Bruce R.Mitigating Risk from Abnormal Loads and Progressive Collapse[J].Journal of Performance of Constructed Fa-cilities,2006,20(4):315-323.
[2]陈肇元.室内燃气爆炸危害与房屋结构设计对策[R].北京:清华大学抗震抗爆工程研究室,1991.
[3]Donald O.Dusenberry,Gunjeet J.Review of existing guidelines and provisions related to progressive collapse[C].Chicago:The Na-tional Workshop on The Prevention of Progressive Collapse,Multihazard Mitigation Council,NIST,2002.
[4]Ellingwood B R.Building design for abnormal loads and progressive collapse[J].Computer-Aided Civil and Infrastructure Engi-neering,2005,20(3):194-205.
[5]HMSO.The Building Regulations 2000:Approved document A-Structure[S].2004.
[6]EN1991-l-7,Eurocode 1-actions on structures-part 1.7:general actions-accidental actions due to impact and explosions[S].2006.
[7]General Services Administration.Progressive Collapse Analysis and Design Guidelines for New Federal Office Buildings and MajorModernization Projects[S].Washington D C:GSA,2003.
[8]UFC 4-023-03,Design of Buildings to Resist Progressive Collapse[S].2005.
[9]GB50010-2010,混凝土结构设计规范[S].北京:中国建筑工业出版社,2010.
[10]尚晓江,苏建宁.ANSYS/LS-DYNA动力分析方法与工程实例[M].北京:中国水利水电出版社,2005:223-236.
[2]陈肇元.室内燃气爆炸危害与房屋结构设计对策[R].北京:清华大学抗震抗爆工程研究室,1991.
[3]Donald O.Dusenberry,Gunjeet J.Review of existing guidelines and provisions related to progressive collapse[C].Chicago:The Na-tional Workshop on The Prevention of Progressive Collapse,Multihazard Mitigation Council,NIST,2002.
[4]Ellingwood B R.Building design for abnormal loads and progressive collapse[J].Computer-Aided Civil and Infrastructure Engi-neering,2005,20(3):194-205.
[5]HMSO.The Building Regulations 2000:Approved document A-Structure[S].2004.
[6]EN1991-l-7,Eurocode 1-actions on structures-part 1.7:general actions-accidental actions due to impact and explosions[S].2006.
[7]General Services Administration.Progressive Collapse Analysis and Design Guidelines for New Federal Office Buildings and MajorModernization Projects[S].Washington D C:GSA,2003.
[8]UFC 4-023-03,Design of Buildings to Resist Progressive Collapse[S].2005.
[9]GB50010-2010,混凝土结构设计规范[S].北京:中国建筑工业出版社,2010.
[10]尚晓江,苏建宁.ANSYS/LS-DYNA动力分析方法与工程实例[M].北京:中国水利水电出版社,2005:223-236.
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