文档介绍：文章编号: 基于ABAQUS的钢筋混凝土柱非线性有限元分析卢怡思,+张耀庭(华中科技大学土木工程与力学学院,湖北,武汉430074) 摘要:数值分析与建模是进行钢筋混凝土结构抗震性能研究的重要手段。为了保证钢筋混凝土结构数值建模的可靠性,本文以钢筋混凝土柱的拟静力试验为基础,在ABAQUS中对其进行基于纤维杆件单元非线性有限元模拟。考虑材料本构模型对结构数值模拟结果的影响,对两个拟静力试验柱分别建立了6个数值分析模型,计算结果表明:在选用合理混凝土与钢筋本构模型的条件下,纤维单元模型能够有效的模拟钢筋混凝土的滞回性能;在数值建模过程中可以忽略混凝土的抗拉强度:—Park约束本构模型与Mander约束本构模型均能有效的模拟箍筋对混凝土的约束效应;相比于混凝土的本构模型,钢筋本构模型对模拟结果的影响更大,有必要对现有钢筋的本构模型进行更为细致全面的研究。关键字:纤维模型;混凝土本构;约束混凝土;钢筋奉构:ABAQUS;非线性滞回模拟 NoNLINEAR FINITE ELEMENT ANALYSIS FOR RElNFORCED CONCRETE CoLUMNS WHICH BASED oN ABAQUS .+Zhang (Huazhong University ofScience and Technology,School ofCivil Engineering andMechanics,Hubei,Wuhan 430074,China) Abstract:Numerical analysis andmodeling are important means fortheresearches on theseismic performance of reinforced concrete order toguarantee thereliability ofthenumerical modeling ofRC structures, studies were carried on experimental RC finiteelement simulations which based on fiber element were conducted theinfluence ofmaterial constitutive model forstructure numerical simulation numerical analysis model were established respectively on two pseudo—static experimental RC resultsshow that:Inthecondition ofchoosing reasonable constitutive model for steeland concrete,the hystereticperformance olumns can be simulated essfully infiberelement; Sec