汽车炸弹爆炸冲击波作用下建筑物的动力响应分析  

ANALYSIS ON DYNAMIC RESPONSE OF STRUCTURE UNDER BLAST SHOCK WAVE

作　　者：申祖武[1] 龚敏[1] 王天运[2] 郑力[2] 张耀辉 

机构地区：[1]武汉理工大学土木工程与建筑学院,武汉430070 [2]总参工程兵科研三所,洛阳471023 [3]中南设计院,武汉430070

出　　处：《振动与冲击》2008年第8期165-168,共4页Journal of Vibration and Shock

摘　　要：利用动力分析有限元程序LS-DYNA3D,对三层框架结构建筑物在汽车炸弹爆炸荷载作用下的动力响应进行数值模拟。将建筑物在空气冲击波作用下和空气冲击波与地震波共同作用的动力响应作了比较,得出不同位置处质点压力和等效应力等参数,分析了爆炸冲击作用下建筑物的破坏效应,为建筑结构的防护设计提供依据。The finite element program LS-DYNA3D was used to, numerically simulate the dynamic response of the three-storey portal frame building under explosion of automobile bomb. The dynamic responses of building, under single air-shock wave as well as under the combined action of air-shock waves and seismic waves, were analyzed respectively. The pressure and the particle effects at different location were obtained. The destruction effect on the building under automobile bomb was analysed and the basis for structural protection design was provided.

关 键 词：爆炸冲击波 建筑结构 动力响应 数值模拟 有限元分析 

分 类 号：O383.2[理学—流体力学]