摘要
为了研究内爆法拆除混凝土框架结构的基本规律,作者使用LS-DYNA中的MAT159本构,采用分离式constrained方法建立钢筋混凝土模型,建立了一个10层5跨的混凝土单榀结构模型,待重力平衡后,采用不同拆除顺序对内爆拆除进行了数值模拟.模拟结果显示了不同内爆方法的倒塌规律,并提出了延期时间的确定原则.
To find out the basic law of the concrete frame structure implosion demolition, the model of single concrete framework of ten stories with five-span frame was constructed by using MAT159 software and adopting separating constrained method to simulate reinforced concrete. First, the gravity balance was executed. Then, the numerical simulation was implemented according to the designed different sequences of implosion demolition. From the results of simulation, the collapsed rules could be achieved. Also the criterion to determine the delay time could be put forward.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2012年第4期354-357,385,共5页
Transactions of Beijing Institute of Technology
关键词
分离式模型
数值模拟
单榀框架
延期时间
separating constrained model numerical simulation single framework delay time
