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基于分离式共结点模型的钢筋混凝土结构爆破拆除数值模拟
引用本文:余德运,杨军,陈大勇,杨忠华. 基于分离式共结点模型的钢筋混凝土结构爆破拆除数值模拟[J]. 爆炸与冲击, 2011, 31(4): 349-354. DOI: 10.11883/1001-1455(2011)04-0349-06
作者姓名:余德运  杨军  陈大勇  杨忠华
作者单位:北京理工大学爆炸科学与技术国家重点实验室,北京,100081;北京理工大学爆炸科学与技术国家重点实验室,北京,100081;北京理工大学爆炸科学与技术国家重点实验室,北京,100081;北京理工大学爆炸科学与技术国家重点实验室,北京,100081
摘    要:通过大型有限元分析软件ANSYS/LS-DYNA,充分考虑钢筋和混凝土在结构倒塌时各自的受力状态和强度差异,运用分离式共节点模型模拟钢筋混凝土结构建筑物的爆破拆除倒塌过程.通过对倒塌过程中钢筋混凝土支撑立柱内侧和外侧的钢筋单元、混凝土单元的承载失效过程分析研究,对数值模拟效果与实际爆破效果对比分析得出:分离式共结点模型...

关 键 词:爆炸力学  爆破拆除分离式共节点  钢筋混凝土结构

Numerical simulation of reinforced concrete structure based on separate element and common node model
YU De-yun,YANG Jun,CHEN Da-yong,YANG Zhong-hua. Numerical simulation of reinforced concrete structure based on separate element and common node model[J]. Explosion and Shock Waves, 2011, 31(4): 349-354. DOI: 10.11883/1001-1455(2011)04-0349-06
Authors:YU De-yun  YANG Jun  CHEN Da-yong  YANG Zhong-hua
Affiliation:1.StateKeyLaboratoryofExplosionScienceandTechnology,
Abstract:The differences of the load-bearing state and the intensity were considered between steel and concrete while a structure collapsing.A common node separate model was adopted to simulate the collapse process of a reinforced concrete structure by using the finite element analysis software ANSYS/LS-DYNA.A series of analysis were carried out for the failure processes of the steel and concrete elements inside and outside the steel-reinforced concrete support pillars.And the simulated results were compared with the actual blasting results.It is shown that the common node separate model can describe the load failure differences between steel and concrete in the collapse process of the reinforced concrete structures.And it is feasible that the common node separate model is used to simulate the collapse process of the reinforced concrete structures.
Keywords:mechanics of explosion  blasting demolition  common node separate model  reinforced concrete structure
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