APDL语言实现钢筋混凝土错层节点非线性分析

Nonlinear FEM Analysis of RC Staggered Joint by Using APDL Language

针对现在流行的有限元软件ANSYS在进行钢筋混凝土非线性有限元模拟分析时经常遇到的若干问题,结合错层节点的试验结果分析,全面阐述错层节点非线性有限元分析全过程。主要解决了以下问题:(1)钢筋混凝土非线性有限元分析的基本思路;(2)如何采用APDL语言对钢筋和混凝土进行分离式建模;(3)如何实现钢筋和混凝土之间的粘结滑移模拟。

In order to settle some problems involved in applying ANSYS into nonlinear Finite Element Analysis of RC structure, this paper discusses the nonlinear FEM method for staggered joint, incorporating its experimental result. The main solved problems are as follows ： （ 1 ） The fundamental process of nonlinear FEM analysis ; （2） How to model the behaviors of reinforcement and concrete respectively ; （ 3 ） How to model the bond - slip relationship between reinforcement and concrete.