SRC弯扭构件的非线性有限元分析  

Nonlinear finite element analysis of SRC members under bending moment and torsion

作　　者：卞成伟 邵永健[1] 

机构地区：[1]苏州科技学院土木工程学院,江苏苏州215011

出　　处：《四川建筑科学研究》2015年第2期26-30,42,共6页Sichuan Building Science

基　　金：国家自然科学基金项目(51078249);江苏省研究生科研计划创新项目(CXLX12-0871)

摘　　要：以6根实腹式型钢混凝土梁弯扭试验研究为基础,利用有限元软件ABAQUS进行数值模拟分析。数值模拟得到的扭矩-扭率曲线以及极限扭矩与试验结果吻合良好,验证了所建模型分析型钢混凝土梁弯扭全过程数值模拟方法的可行性,进而探讨了不同因素对构件极限扭矩的影响规律。结果表明,试件极限扭矩随着弯扭比的增大而减小,随着配箍率、配钢率的增大而提高。Based on the bending moment and torque test results, the six models of steel-reinforcement concrete beams （SRCB） were analyzed and simulated by nonlinear finite element （FEM） analysis software of ABAQUS. The curve of T-θ and ultimate torque contrast between FEM and test results were in good agreement. The method can correct simulate the entire process under bending moment and torsion of the SRC members,and then the influence rules of different factors on ultimate torque were discussed. The results indicated that ultimate torque declines as the ratio of bending moment to torque increase, meanwhile the ultimate torque rises as the stirrup ratio and the steel ratio enhance.

关 键 词：型钢混凝土梁 弯扭比 非线性分析 

分 类 号：TU375.4[建筑科学—结构工程]