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马江萍

（西安培华学院 智能科学与工程学院 ，西安   710125)

摘   要 ：为分析圆多腔体中空钢管混凝土柱的抗扭承载力 ，在单向加载与往复加载下 ，进行了以轴压比与 截面形式为基本参数的 24 根柱模型的抗扭承载力分析。结果表明： 圆多腔体中空夹层钢管混凝土柱模型较圆中 空夹层钢管混凝土柱模型有较强的抗扭承载力 ；单向加载时圆四腔体中空夹层钢管混凝土柱模型在轴压比≤0. 4 时具有显著的抗扭延性 ， 圆六腔体中空钢管混凝土柱模型在轴压比 0 ~ 0. 6 均具有较好的抗扭承载力及延性 ；往 复加载中圆多腔体中空夹层钢管混凝土柱模型较圆中空夹层钢管混凝土柱模型抗扭承载力增幅较大。

关键词： 圆多腔体中空钢管 ；轴压比 ；有限元分析 ；抗扭承载力

中图分类号：TU398 . 9            

文献标志码：A           

文章编号： 1005- 8249   (2025)  02- 0102- 08 

DOI:10. 19860/j.cnki.issn1005 - 8249.2025 .02.018

 

MA Jiangping

(School of Intelligent Science and Engineering ,  Xi ’an Peihua University ,  Xi ’an 710125 ,  China)

Abstract: In order to study the torsional bearing capacity of circular multi-cavity hollow concrete filled steel tubular columns, the results of compression-torsional tests of four circular hollow concrete filled steel tubular specimens were compared with the results of finite element simulation analysis, after determining the rationality of the finite element simulation, the torsional bearing capacity of 24 column models with axial compression ratio and section form as basic parameters under uniaxial and reciprocating loading is analyzed. The results show that the concrete filled circular multi-cavity hollow steel tube model has stronger torsional bearing capacity than the concrete filled circular hollow steel tube model When the axial compression ratio≤0.4, the model of circular four-cavity hollow sandwich concrete filled steel tube columns under uniaxial loading has remarkable torsion resistance, concrete filled hollow steel tubular columns with circular six cavities have good torsional capacity and ductility under axial compression ratio of 0 ~ 0.6 ,the torsional bearing capacity of the circular multi-cavity hollow concrete filled steel tube column model under reciprocating loading is larger than that of the circular hollow concrete filled steel tube model.

Key words: round multi-cavity hollow steel tube; axial compression ratio; finite element analysis; torsional bearing capacity

基金项目： 陕西省 “十四五 ”教育科学规划 2024 年度课题 (SGH24Y2680) ;  西安培华学院  2023年度校级科研项目 (PHKT2303) 。

作者简介： 马江萍  (1983—) ,  女，硕士，教授，研究方向： 建筑结构。

收稿日期：2024 - 02 - 23