8层受损砖混结构楼爆破拆除的数值模拟Numerical Simulation of Explosive Demolition of 8-storey Damaged Brick and Concrete Structure Building
程良玉,吴建源,龙源
摘要(Abstract):
受损楼房在爆破拆除前由于其结构稳定性改变,对爆破拆除设计有重要影响。因此通过数值模拟手段进行倒塌过程仿真,对于方案的实施具有特别的指导意义。针对一栋8层受损砖混结构楼房的爆破拆除,运用Ansys/Ls-Dyna有限元分析软件,采用整体式模型,对该楼房倒塌过程进行了数值模拟。通过分析爆破倒塌过程,预测了爆破效果,为安全防护提供了有效建议;通过研究楼房顶部质点运动,分析了爆破切口预留支撑体强度对爆破效果的影响及地面受冲击情况。
关键词(KeyWords): 砖混结构楼房;爆破拆除;数值模拟;倒塌过程
基金项目(Foundation):
作者(Author): 程良玉,吴建源,龙源
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