钢筋混凝土柱壳的非线性分析  

Nonlinear Analysis of Reinforced Concrete Cylindrical Sell

作　　者：胡再龙[1] 

机构地区：[1]同济大学结构工程学院

出　　处：《同济大学学报（自然科学版）》1995年第5期604-608,共5页Journal of Tongji University:Natural Science

摘　　要：混凝土受拉开裂及多向压应力作用下混凝土的非线性应力－应变关系是产生钢筋混凝土结构非线性反应的两个主要原因，据此建立混凝土破坏的一般准则，用这些准则建立非线性有限元分析的应力－应变增量关系．对于钢筋混凝土构件的有限元分析，文中介绍的方法可以直接考虑钢筋的作用，钢筋和混凝土两种不同材料的应力－应变关系可以分别考虑，便于有限元计算程序的编制．The generalized failure criteria are developed to account for the two major sources of nonlinearity: the progressive cracking of concrete in tension and the nonlinear response of concrete under multiaxial compression. With these criteria, incremental stress- strain relationships are established in suitable form for the nonlinear finite element analysis. For the analysis of concrete members by finite elements, a method is introduced by which the effect of reinforcement is directly included. With this appoach, the stress-strain laws for the constituent materials of reinforced concrete are uncoupled permitting efficient and convenient implementation of a finite element program.

关 键 词：钢筋混凝土 非线性 柱壳 有限元 

分 类 号：TU375.01[建筑科学—结构工程]