一种新型钢-混凝土组合短柱轴压性能的有限元分析  

Finite Element Analysis for Axial Behavior of a New Type of Steel-concrete Composite Columns

作　　者：尹兵兵 唐兴荣[1] 杨静明 陆国琦 YIN Bingbing;TANG Xingrong;YANG Jingming;LU Guoqi(School of Civil Engineering,Suzhou University of Science and Technology,Suzhou 205011,China;Zhongheng Suzhou Huazao Architecture Design Co.,Ltd.,Suzhou 215021,China)

机构地区：[1]苏州科技大学土木工程学院,江苏苏州215011 [2]中衡苏州华造建筑设计有限公司,江苏苏州215021

出　　处：《淮海工学院学报（自然科学版）》2018年第4期62-67,共6页Journal of Huaihai Institute of Technology:Natural Sciences Edition

基　　金：建设部科技研究项目(99-031-2)

摘　　要：为了改善空间钢构架混凝土柱轴压性能,提出一种新型钢-混凝土组合结构——内埋方形钢管空间钢构架混凝土柱.为了进一步研究该新型钢-混凝土组合柱的轴压受力性能,以角钢肢长、缀条间距、方钢管宽厚比、混凝土强度等级、钢材强度等级等为设计参数,利用ABAQUS有限元分析软件建立非线性有限元模型,并对内埋方形钢管空间钢构架混凝土短柱轴压性能进行模拟分析.分析结果表明,影响内埋方形钢管空间钢构架混凝土短柱轴压性能的主要影响因素,可以用方钢管混凝土套箍指标和空间钢构架混凝土约束影响系数来表示,其轴压承载力与方钢管混凝土套箍指标和空间钢构架混凝土约束影响系数大致呈线性变化.To improve the axial behaviors of spatial steel frame concrete column,a new type of steel-concrete composite column-spatial steel frame concrete column filled square steel tube was proposed.In order to further study on the axial behaviors of this new steel-concrete composite column,the nonlinear finite element model of spatial steel frame concrete short column filled square steel tubes were establish by using ABAQUS finite element software,the axial behavior of each specimen is simulated and analyzed using the nonlinear finite element model established above,the analysis model were designed according to design parameters such as the length of the angle steel,the distance of the lacing bar,width-thickness ratio of square steel tube,strength grade of concrete and steel and so on.The analysis results show that the major factors influencing the axial compressive performance of spatial steel frame concrete short column filled square steel tube can be expressed by the hoop index of square steel tubular concrete and the constraint influence coefficient of spatial steel frame concrete.The bearing capacity of the spatial steel frame concrete filled square steel tube is linearly varied with the hoop index of square steel tubular concrete and the concrete constraint influence coefficient of the spatial steel frame concrete.

关 键 词：空间钢构架混凝土柱 方钢管混凝土 轴压性能 有限元分析 

分 类 号：TU398.9[建筑科学—结构工程]