梁式转换结构的ABAQUS非线性有限元分析

Nonlinear Finite Element Analysis on Girder Transfer Structure with Software ABAQUS

为研究梁式转换结构在竖向荷载作用下应力的分布及承载力情况,运用ABAQUS软件对文献[9]中的满跨剪力墙梁式转换结构ZHL-1进行有限元分析,并将有限元计算与文献报道的试验进行结果对比。分析表明:数值模拟与试验所得极限承载力误差仅为4.17%;该结构中转换梁与上部剪力墙共同作用所产生的应力拱效应分布及变形发展全过程与试验吻合较好;引入的损伤参数可以有效体现混凝土的拉伸开裂变化和压缩破坏特征。因此,运用ABAQUS软件,结合混凝土损伤塑性模型梁式转换结构所作的非线性有限元分析结果,可以为类似的剪力墙梁式转换结构设计和试验提供参考。

The paper adopts the software ABAQUS to undertake the finite element analysis for full span girder transfer beam with upper wall structure ZHL-1 in the literature [9], and compares the results of finite element analysis with those in the literature [9]. The results prove that the error is only 4.17% for the ultimate capacity, and the distribution of stress arching effect and the whole process of reformation, both generated by structure transfer beam and upper wall, are in good accordance with those from experiment. The introduced damage parameter can effectively reflect the concrete characteristics of tensile crack and compression failure. So the resuhs of nonlinear finite element analysis based on the software ABAQUS and the girder transfer structure of concrete damaged plastic model can provide reference for similar shear wall transfer beam structure design and test.