摘要
基于ANSYS有限元程序计算平台,对钢筋混凝土梁承载能力进行了数值分析;论述了混凝土结构非线性分析中的单元网格划分、裂缝张开闭合系数设置及收敛容差选取等问题;得到了梁破坏全过程的荷载–位移关系及梁破坏荷载的数值结果;将数值解与理论解进行分析比较,确定了误差成因及纵筋配筋率对破坏荷载的影响。
Based on the calculation platform of ANSYS finite element program,the bearing capacity of reinforced concrete beam is numerically analyzed.This paper discusses the problems of element mesh division,crack opening and closing coefficient setting and convergence tolerance selection in the nonlinear analysis of concrete structures.The load displacement relationship of the whole process of beam failure and the numerical results of beam failure load are obtained.By analyzing and comparing the numerical solution with the theoretical solution,the causes of error and the influence of longitudinal reinforcement ratio on the failure load are determined.
出处
《建筑技术开发》
2022年第9期128-130,共3页
Building Technology Development
关键词
钢筋混凝土梁
数值模拟
承载能力
reinforced concrete beam
numerical simulation
load capacity
