杨震宇,梁艳

• 1:郑州工业应用技术学院

摘要(Abstract)：

针对钢筋砼结构建筑倒塌问题,采用新近兴起的PIC对钢筋砼建筑物倒塌特性及坍塌物分布形式进行了数值模拟,利用飞行器为钢筋砼建筑物提供破坏力,详细阐述不同撞击高度下的钢筋砼建筑物倒塌特性,并比较其异同,从内部揭示钢筋砼建筑物坍塌特性,结果显示:整个撞击过程分为撞击和爆炸两部分,撞击并不能对建筑物造成毁坏性的影响,爆炸会损坏被撞击建筑物的支撑柱和核心筒,而核心筒的损坏导致了建筑物的失稳,建筑物在重力作用下完成了彻底坍塌;撞击高度为100m条件下没有撞击高度为250m条件下的建筑物上部结构的坠落过程,但增加了坐塌过程;撞击高度250m条件下残骸基本分布于撞击的反方向,而撞击高度100m条件下残骸主要分布于四周,且反方向分布最远.

关键词(KeyWords)： 钢筋砼;建筑物坍塌;PIC;油料爆炸

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 杨震宇,梁艳

DOI: 10.16393/j.cnki.37-1436/z.20170424.007

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