城市高层框架-筒体结构建筑物拆除数值模拟研究Numerical Simulation of Explosive Demolition of Urban High-steered Frame-tube Structures
吴建宇,龙源,纪冲,宋克健,宋歌
摘要(Abstract)：
城市高层框架-筒体建筑大多处在建筑密集的场所,环境复杂,对爆破拆除提出很高要求。南昌五湖大酒店拆除爆破的工程实例中,为减小楼房同时倒塌产生的振动危害效应,采用多段延时起爆技术,使楼房分三段依次塌落。利用ANSYS/LS-DYNA有限元程序对采取定向控制爆破的框架-筒体楼房塌落过程进行了数值模拟,楼房实现了定向塌落,触地后发生纵向断裂和局部破碎,与实际爆破效果相符合。数值模拟方法对于分析建筑物的倒塌模型、预测倒塌过程以及更好的指导爆破拆除施工有较好的帮助,具有显著的工程应用价值。
关键词(KeyWords)： 数值模拟;拆除爆破;框筒结构;定向倒塌
基金项目(Foundation):
作者(Author): 吴建宇,龙源,纪冲,宋克健,宋歌
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