【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。更多还原

【Abstract】 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.更多还原