摘要
研究内置H型钢圆铝管混凝土中长柱轴压性能,分析各类参数对轴压承载力的影响,为该类构件轴压承载力计算提供参考。采用ABAQUS有限元分析软件构建模型,通过与现有试验数据对比验证模型的准确性;然后对典型构件进行全过程分析,包括荷载承担比、混凝土纵向应力分布和约束力发展,分析各类参数对其承载力和初始刚度的影响。结果表明:内置H型钢圆铝管混凝土中长柱在轴压过程中,混凝土承担荷载比例始终最高,H型钢约束力大于铝合金管约束力。混凝土强度与含铝率是影响其承载力的关键参数,长径比和含钢率是影响其初始刚度的关键参数。内置H型钢圆铝管混凝土中长柱各组成部分均能充分发挥其作用,具有良好的承载能力与初始刚度。
This study investigated the axial compression performance of H-shaped steel reinforced concrete-filled aluminum alloy tubular(HSRCFAAT)medium-long columns,analyzing the influence of key parameters on their axial bearing capacity to provide references for calculating the bearing capacity of such components.Finite element models were developed using ABAQUS software and validated against existing experimental data.A comprehensive analysis of typical components was conducted,including load-sharing ratios,longitudinal stress distribution of concrete,and the development of constraint forces.The results revealed that concrete consistently bears the highest proportion of the load during axial compression,while the restraint force of H-shaped steel was greater than that of the aluminum alloy tube.Key parameters influencing bearing capacity were identified as concrete strength and aluminum content ratio,whereas slenderness ratio and steel content ratio significantly affected initial stiffness.The findings demonstrate that such composite columns exhibit excellent load-bearing capacity and initial stiffness,with each component functioning effectively under axial compression.
作者
李兵
李松霖
王良志
LI Bing;LI Songlin;WANG Liangzhi(School of Civil Engineering,Shenyang Jianzhu University,Shenyang,China,110168)
出处
《沈阳建筑大学学报(自然科学版)》
北大核心
2025年第4期433-443,共11页
Journal of Shenyang Jianzhu University(Natural Science)
基金
国家自然科学基金国家重大科研仪器研制项目(52027811)。
关键词
内置H型钢圆铝管混凝土
中长柱
轴压性能
有限元分析
轴压承载力计算
H-shaped steel reinforced concrete-filled circular aluminum alloy tubular
medium-long columns
axial compressive performance
finite element analysis
axial bearing capacity calculation
