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钢筋混凝土结构裂纹扩展数值模拟
引用本文:郑靖靖,耿欧,陈耀,陈辞. 钢筋混凝土结构裂纹扩展数值模拟[J]. 徐州建筑职业技术学院学报, 2010, 10(3): 18-21
作者姓名:郑靖靖  耿欧  陈耀  陈辞
作者单位:中国矿业大学力学与建筑工程学院,江苏徐州221116
基金项目:国家自然科学基金资助项目
摘    要:通过FRANC 2D软件模拟裂纹扩展,得出了应力和应力强度因子.对应力的影响因素研究发现:相对保护层厚度对钢筋周围混凝土的最大拉应力影响较大.通过应力和应力强度因子可以确定裂纹起始点,从而进行钢筋混凝土裂纹扩展模拟,以对实际结构中裂纹的扩展提供参考.

关 键 词:Franc2D  应力  应力强度应子  裂纹扩展模拟

Numerical Simulation of Crack Propagation in Reinforced Concrete Structure
ZHENG Jing-jing,GENG Ou,CHEN Yao,CHEN Ci. Numerical Simulation of Crack Propagation in Reinforced Concrete Structure[J]. Journal of XUZHOU Institute of Architectural Technology, 2010, 10(3): 18-21
Authors:ZHENG Jing-jing  GENG Ou  CHEN Yao  CHEN Ci
Affiliation:(School of Mechanics and Architectural Engineering,China University of Mining and Technology,Xuzhou,Jiangsu 221116,China)
Abstract:Based on the simulation of crack propagation by FRANC 2D,obtained are the stress and its intensity factors.Research into the influencing factors of stress results in that the effect of relative thickness of retaining layer is comparatively greater on the maximum tension stress of reinforcement-surrounding concrete.The initial point of crack is defined with the stress and its intensity factors to simulate the crack propagation of reinforced concrete,which provides references for crack propagation in practical structures.
Keywords:FRANC 2D  stress  stress intensity factor  simulation of crack propagation
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