装配式钢骨混凝土组合柱非线性静力分析  

Nonlinear Static Analysis of Prefabricated Steel Reinforced Concrete Composite Columns

作　　者：卢国鸿 米洋 张微生 张艳平 吴成龙[5] Lu Guohong;Mi Yang;Zhang Weisheng;Zhang Yanping;Wu Chenglong(Linqu Branch of Survey and Design Institute of Jinan Railway Bureau,Linqu,262600;Comprehensive Administrative Law Enforcement Bureau of Rencheng District,Jining,272000;Housing Security and Real Estate Development Affairs Center of Jining,Jining,272000;Construction Industry Development Center of Linqu,Linqu,262600;School of Civil Engineering,Qingdao University of Technology,Qingdao,266520)

机构地区：[1]济南铁路局勘测设计院临朐分院,临朐262600 [2]济宁市任城区综合行政执法局,济宁272000 [3]济宁市住房保障和房地产发展事务中心,济宁272000 [4]临朐县建筑业发展中心,临朐262600 [5]青岛理工大学土木工程学院,青岛266520

出　　处：《建设科技》2023年第17期82-84,89,共4页Construction Science and Technology

基　　金：山东省高校科研计划项目(A2018-065)。

摘　　要：本文借助ABAQUS有限元软件,对9个装配式钢骨混凝土组合柱模型进行了单调加载仿真分析,研究了不同剪跨比、轴压比对试件承载力、初始刚度和延性的影响规律。结果表明,不同剪跨比和轴压比影响下,装配式钢骨混凝土组合柱具有良好的承载能力、初始刚度以及塑性变形性能,整个加载过程中具有明显弹性、弹塑性和破坏三个阶段。随着剪跨比的增大,试件受力性能降低明显,但试件仍能保持良好变形能力。随着轴压比增大,塑性变形能力与延性明显下降,承载力呈现出先升高后降低的变化趋势,当轴压比为3~4时,峰值承载力达到最大。在进行试件设计时应合理控制其轴压比。Using ABAQUS finite element software,monotonic loading simulation analysis was conducted on 9 prefabricated steel reinforced concrete composite column models.The influence of different shear span ratios and axial compression ratios on the bearing capacity,initial stiffness,and ductility of specimens was studied.The results show that under the influence of different shear span ratios and axial compression ratios,prefabricated steel reinforced concrete composite columns have good bearing capacity,initial stiffness,and plastic deformation performance.The entire loading process has three distinct stages:elasticity,elastic-plasticity,and failure.As the shear span ratio increases,the bearing capacity of the specimen decrease significantly,but the specimen can still maintain good ductility.As the axial compression ratio increases,the plastic deformation capacity and ductility significantly decrease,and the bearing capacity shows a trend of first increasing and then decreasing.When the axial compression ratio is 3~4,the peak bearing capacity reaches its maximum.When designing specimens,the axial compression ratio should be reasonably controlled.

关 键 词：装配式 钢骨混凝土柱 非线性分析 

分 类 号：TU398.9[建筑科学—结构工程]