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.
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.
出处
《徐州建筑职业技术学院学报》
2010年第3期18-21,共4页
Journal of XUZHOU Institute of Architectural Technology
基金
国家自然科学基金资助项目:"混凝土结构钢筋锈蚀与裂缝扩展时变模型研究"(50808173)
