基于纤维模型的钢筋混凝土框架结构爆破倒塌破坏模拟  

Simulation for the Collapse of Reinforced Concrete Frame by Blasting Based on Fiber Model

作　　者：陆新征[1] 张炎圣[1] 江见鲸[1] 

机构地区：[1]清华大学土木工程系,北京100084

出　　处：《爆破》2007年第2期1-6,共6页Blasting

基　　金："十一五"国家科技支撑计划子课题

摘　　要：结构在爆炸荷载下的倒塌破坏模拟日益受到关注。采用基于MSC.MARC有限元软件开发的钢筋混凝土纤维模型程序THUFIBER,对一钢筋混凝土框架结构在爆炸荷载下的倒塌破坏进行了模拟,并根据国家规范特点考虑了框架的正截面和斜截面破坏。计算结果表明,THUFIBER程序可以较好地模拟钢筋混凝土框架结构的倒塌破坏,并对一些关键模型参数进行了讨论。The collapse of a reinforced concrete(RC) frame under blast load is simulated with the fiber model based program THUFIBER,which is developed with the MSC.MARC commercial finite element(FE) software.The flexural and shear failures of RC frame designed according to Chinese building codes have been considered in THUFIBER.The numerical results show that THUFIBER can correctly simulate the collapse of RC frame structure.And several important parameters are discussed with the FE model.

关 键 词：爆炸 倒塌 纤维模型 钢筋混凝土 有限元 

分 类 号：TD235.1[矿业工程—矿井建设]