方钢管-T形钢组合T形截面柱轴压稳定承载力分析  

Analysis of Axial Compressive Stability Bearing Capacity of T-Shaped Section Column of Square-Steel-Pipe-T-Shaped Steel Composite

作　　者：周乐[1,2] 李奕轩 赵同峰[3] 杨翔宇 丁嘉 ZHOU Le;LI Yixuan;ZHAO Tongfeng;YANG Xiangyu;DING Jia(School of Architecture and Engineering,Shenyang University,Shenyang 110044,China;Laboratory of Engineering Structure Safety Assessment and Prevention,Shenyang University,Shenyang 110044,China;Department of Road and Bridge Engineering,Liaoning Transportation College,Shenyang 110122,China)

机构地区：[1]沈阳大学建筑工程学院,辽宁沈阳110044 [2]沈阳大学工程结构安全评估与防控实验室,辽宁沈阳110044 [3]辽宁省交通高等专科学校道路与桥梁工程系,辽宁沈阳110122

出　　处：《沈阳大学学报(自然科学版)》2025年第1期71-77,92,共8页Journal of Shenyang University:Natural Science

基　　金：国家自然科学基金资助项目(52478191);沈阳市工程结构安全评估与防控重点实验室项目(S230184)。

摘　　要：为进一步研究影响方钢管-T形钢组合T形截面柱轴压稳定承载力的因素,采用ABAQUS有限元软件建立考虑残余应力和初始几何缺陷影响的方钢管-T形钢组合T形截面柱的有限元模型,并利用已有的试验数据校准ABAQUS有限模型的准确性。基于建立的模型,对比分析了初始几何缺陷、残余应力、钢材强度及截面尺寸和正则长细比对方钢管-T形钢组合T形截面柱轴压稳定性能的影响。研究结果表明:残余应力对构件稳定承载力影响并不显著;钢材强度,截面尺寸对构件稳定承载力影响显著。In order to further study the factors affecting the axial compressive stability bearing capacity of the T-shaped section column of square steel pipe-T-shaped steel composite,the ABAQUS finite element software was used to establish a finite element model considering the influence of residual stress and initial geometric defects,and the accuracy of the ABAQUS finite model was calibrated by using the existing test data.Based on the established model,the effects of initial geometric defects,residual stress,steel strength,cross-sectional size and regular slenderness ratio on the axial compressive stability of the T-shaped section column of square steel pipe-T-shaped steel composite were compared and analyzed.The results show that the residual stress has no significant effect on the stable bearing capacity of the component;the strength of the steel and the cross-sectional size have a significant impact on the stable bearing capacity of the component.

关 键 词：钢结构 异形柱 稳定承载力 数值模拟 参数分析 

分 类 号：TU391[建筑科学—结构工程]