钢筋混凝土框架柱的裂缝模拟分析  

Cracking Simulative Analysis of Reinforced Concrete Columns with ANSYS Software

作　　者：张国军[1] 吕西林[1] 

机构地区：[1]同济大学,上海200092

出　　处：《建筑结构》2006年第2期29-33,共5页Building Structure

基　　金：国家自然科学基金创新研究群体资助项目(50321803)

摘　　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。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, crocks exit with no rule, which shows the bearing character of the core concrete is complex.

关 键 词：ANSYS软件 有限元 钢筋混凝土 框架柱 模拟 裂缝 

分 类 号：TU375.4[建筑科学—结构工程] P618.130.2[天文地球—矿床学]