核心型钢混凝土柱的滞回性能数值分析  

NUMERICAL ANALYSIS ON HYSTERETIC BEHAVIOR OF CORE STEEL REINFORCED CONCRETE COLUMNS

作　　者：朱颖 范存新[1] ZHU Ying;FAN Cunxin(Department of Civil Engineering,Suzhou University of Science and Technology,Suzhou 215011,China)

机构地区：[1]苏州科技大学土木工程学院

出　　处：《钢结构》2019年第6期62-68,共7页Steel Construction

基　　金：国家自然科学基金项目(51478286);苏州科技大学研究生科研创新计划项目(091721105)

摘　　要：在考虑型钢和箍筋对混凝土的约束机制基础上,采用ABAQUS有限元分析软件,建立了适用于核心型钢混凝土柱的有限元分析模型。通过对比滞回性能数值分析结果与试验结果,验证了该有限元模型的合理性和准确性,并基于该有限元模型探究了轴压比、纵筋配筋率、体积配箍率、含钢率和型钢截面形式对核心型钢混凝土柱滞回性能的影响。Considering the confinement mechanism of concrete confined by steel and stirrups,a finite element model was proposed by using the software ABAQUS to simulate the hysteretic behavior of core steel reinforced concrete(CSRC)columns.The finite element model was validated by the comparisons of the hysteretic curves between the numerical simulation results and test results.Finally,the influence factors,including the axial load ratio,longitudinal reinforcement ratio,volumetric reinforcement ratio,steel ratio and steel cross-section form,were investigated based on the proposed finite element method.

关 键 词：约束机制 核心型钢混凝土柱 数值分析 滞回性能 

分 类 号：TU398.9[建筑科学—结构工程]