钢管-空间钢构架混凝土短柱轴压性能分析  

Analysis of Axial Compressive Behavior of Spatial Steel Frame Concrete Short Columns Embedded Circular Steel Tube

作　　者：戴彬 唐兴荣[1] DAI Bin;TANG Xing-rong(School of Civil Engineering,Suzhou University of Science and Technology,Suzhou Jiangsu 205011,China)

机构地区：[1]苏州科技大学土木工程学院,江苏苏州215011

出　　处：《淮阴工学院学报》2018年第5期43-49,共7页Journal of Huaiyin Institute of Technology

基　　金：原建设部科技研究项目(99-031-2)

摘　　要：利用ABAQUS有限元软件建立了内埋圆形钢管空间钢构架混凝土轴压短柱的非线性有限元模型,分析了外侧钢骨形式、空间钢构架的角钢肢长、缀条间距、混凝土强度等级、钢管的径厚比等参数对内埋圆形钢管空间钢构架混凝土轴压短柱受力性能的影响。研究表明,内埋圆形钢管空间钢构架混凝土柱的轴压承载力主要与内部钢管混凝土的套箍指标及空间钢构架混凝土的约束影响系数有关,且大致呈线性关系。The nonlinear finite element model of the spatial steel frame concrete short columns embedded circu- lar steel tube is established by using ABAQUS finite element software. The mechanical behavior of spatial steel frame concrete short columns embedded circular steel tube was analyzed by considering the influence parameters, such as lateral steel foml, angle steel limb length, lacing bar spacing of spatial steel frame, strength grade of concrete, and diameter - thickness ratio of steel tube etc. The results indicated that the bearing capacity of spatial steel frame concrete short columns embedded circular steel tube is mainly related to the hoop index of concrete filled steel tube and the constraint influence coefficient of the concrete in the spatial steel frame , and it is roughly linear.

关 键 词：空间钢构架混凝土柱 轴心受压 受力性能 有限元分析 

分 类 号：TU398.9[建筑科学—结构工程]