(同济大学  上海 200092)
【提要】  介绍了ANSYS软件建立钢筋混凝土框架柱有限元模型的基本原理。在对模拟试验框架柱的开裂荷载、屈服荷载、最大荷载及破坏裂缝图与相应的试验结果比较分析的基础上，用ANSYS软件模拟分析了单调荷载作用下钢筋混凝土框架柱的裂缝分布和开展规律。结果表明，ANSYS软件模拟的框架柱开裂荷载、屈服荷载及最大荷载与相应的试验结果相差可控制在20%以内；柱表面的裂缝分布、开展及破坏规律与试验情况吻合较好；混凝土核心受压区模拟的三个主拉应力方向均有裂缝产生，且无规律可循，说明核心区混凝土的受力状态复杂。
【关键词】  ANSYS软件  有限元  钢筋混凝土  框架柱  模拟  裂缝
Cracking Simulative Analysis of Reinforced Concrete Columns with ANSYS Software/Zhang Guojun,Lü Xilin(Tongji University,Shanghai 200092,China)
Abstract:The principle and process of finite element model of ANSYS software for RC frame column are introduced.Based on the comparing of crack load,the yield load,the maximum load and crack locations of RC frame column between the FEM calculation and test,the cracking and development rules of RC columns under monotonic load are analyzed with ANSYS software.The results show that the error of FEM simulation to test is in 20%,and the cracking distribution and development rules simulated by ANSYS accord with the test results.In the core concrete,cracks exit with no rule,which shows the bearing character of the core concrete is complex.
Keywords:ANSYS software;finite element;reinforcement concrete;frame column;simulation;crack
*国家自然科学基金创新研究群体资助项目(50321803)。