工程爆破

2008, (01) 12-15

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框架结构楼房爆破拆除倒塌过程模拟
COLLAPSE SIMULATION OF BUILDING IN FRAME STRUCTURE IN CONTROLLED BLASTING DEMOLITION

刘伟;刘立雷;
LIU Wei1,LIU Li-lei2(1.School of Chemical Engineering,Anhui University of Science and Technology,Huainan 232001, Anhui, China) (2. China Nuclear Power Engineering Co.,Ltd.,Shenzhen 518031,China)

摘要(Abstract):

采用有限元方法结合动力有限元分析程序ANSYS/LS-DYNA建立了钢筋混凝土结构数值模型,以模拟框架建筑物爆破拆除的倒塌过程。将钢筋混凝土看作单质均匀材料并采用约束混凝土材料本构关系,以塑性应变控制材料失效,该方法可以计算建筑物爆破切口的形成及倒塌的全部过程。
In order to simulate the collapse of building in framed construction in progress of demolition by controlled blasting,RC structure numerical model was built with FEM combined with ANSYS/LS-DYNA code in this article.In the simulation,the reinforced concrete was treated as single homogeneous material,the constitutive relation of confined concrete was adopted and the plasticity strain was used to control material failure. And as a result,the formation of blasting cut and the whole collapsing course could be computed.

关键词(KeyWords): 框架结构;爆破拆除;数值模拟;约束混凝土
Frame structure; Blasting demolition; Numerical simulation; Confined concrete

Abstract:

Keywords:

基金项目(Foundation): 安徽理工大学硕博士基金项目(11089)

作者(Authors): 刘伟;刘立雷;
LIU Wei1,LIU Li-lei2(1.School of Chemical Engineering,Anhui University of Science and Technology,Huainan 232001, Anhui, China) (2. China Nuclear Power Engineering Co.,Ltd.,Shenzhen 518031,China)

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