| 复合钢管混凝土轴压短柱非线性有限元分析 |
| |
| 引用本文： | 王卫华,尧国皇,王玲玲.复合钢管混凝土轴压短柱非线性有限元分析[J].北京工业大学学报,2013,39(6):886-891. |
| |
| 作者姓名： | 王卫华 尧国皇 王玲玲 |
| |
| 作者单位： | 1. 华侨大学土木工程学院,厦门,361021
2. 清华大学土木工程系,北京,100084 |
| |
| 基金项目： | 中国博士后科学基金资助项目，华侨大学科研基金资助项目 |
| |
| 摘 要： | 基于ABAQUS非线性有限元软件建立了外方内圆复合钢管混凝土轴压短柱的有限元模型,并进行了短柱受轴向荷载作用下的有限元模拟,轴压极限承载力和荷载-变形曲线的数值计算结果与相应的试验实测结果吻合较好.受压时,方形和圆形钢管分别对核心混凝土产生约束作用,使得复合钢管混凝土柱具有较好的延性和较高的剩余承载力.基于非线性有限元模型,开展了复合钢管混凝土轴压短柱在不同参数下的受力分析.通过试验和理论分析发现,一定壁厚情况下,随着内部圆钢管直径增大,复合钢管混凝土轴压短柱极限承载力和剩余承载力的变化先增大后减小.
|
| 关 键 词： | 钢管混凝土 复合截面 轴压 短柱 有限元分析 |
FE Analysis of Axial Behaviour of Composite-Sectioned Square Concrete Filled Steel Tube Stub Columns Reinforced by Circular Steel Tube |
| |
| WANG Wei-hua,YAO Guo-huang,WANG Ling-ling.FE Analysis of Axial Behaviour of Composite-Sectioned Square Concrete Filled Steel Tube Stub Columns Reinforced by Circular Steel Tube[J].Journal of Beijing Polytechnic University,2013,39(6):886-891. |
| |
| Authors: | WANG Wei-hua YAO Guo-huang WANG Ling-ling |
| |
| Affiliation: | 1(1.College of Civil Engineering Huaqiao University,Xiamen 361021,China; 2.Department of Civil Engineering Tsinghua University,Beijing 100084,China) |
| |
| Abstract: | FE models of composite-sectioned square concrete filled steel tube(CFST) stub columns were established in this paper.It was found that the calculated axial bearing capacities and load-deformation curves agreed with those of measured data well.The composite-sectioned CFST stub columns had excellent ductility and high residual bearing capacity with the constraint of square and circular steel tubes under compression.The mechanical behaviour of the square and circular steel tubes and core concrete were analysed under compression.The measured and calculated results show that,the increase of bearing capacities of the composite columns changes with the increasing diameter of the inner circular steel tubes,that is,the changes increase at first,then decrease. |
| |
| Keywords: | concrete filled steel tube composite-sectioned axial compression stub column finite element analysis |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
