基于微平面模型的钢管混凝土短柱非线性有限元分析  

Nonlinear Finite Element Analysis of Concrete Filled Steel Tubular Stub Columns Based on Micro-plane Model

作　　者：李首方 曾飞 

机构地区：[1]保利华南实业有限公司,佛山528200

出　　处：《科学技术与工程》2010年第21期5321-5325,共5页Science Technology and Engineering

摘　　要：钢管混凝土是一种具有优越性能的钢-混凝土组合结构,承载力高,延性好。为了研究钢管约束作用下核心混凝土的力学性能,引入微平面M4模型,采用ABAQUS软件对钢管混凝土短柱进行非线性有限元分析,分析结果与试验结果吻合良好,表明该模型能较好地模拟钢管混凝土结构的力学性能,可用于工程实践。Concrete filled steel tubular（CFST）structure is a kind of steel-concrete composite structure with excellent performance such as high bearing capacity and ductility.In order to investigate the mechanical behavior of core concrete confined by steel tubes.Micro-plane model M4 and conducts nonlinear finite element analysis（FEA）on CFST stub columns using ABAQUS are introduced.Analytical results show good agreement with the test results,indicates that the proposed model can be used to simulate the mechanical behavior of CFST stub columns in practical use.

关 键 词：钢管混凝土结构 微平面模型 非线性 有限元分析 

分 类 号：TU398.7[建筑科学—结构工程]