圆多腔体中空钢管混凝土抗扭承载力分析  

Torsional Bearing Capacity Analysis of Concrete-filled Circular Hollow Steel Tubular with Multi-cavities

作　　者：马江萍[1] MA Jiangping(School of Intelligent Science and Engineering,Xi’an Peihua University,Xi’an 710125,China)

机构地区：[1]西安培华学院智能科学与工程学院,西安710125

出　　处：《粉煤灰综合利用》2025年第2期102-109,共8页Fly Ash Comprehensive Utilization

基　　金：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)。

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。In order to study the torsional bearing capacity of circular multi-cavity hollow concrete filled steel tubular columns,the torsional bearing capacity of 24 column modelswith 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.

关 键 词：圆多腔体中空钢管 轴压比 有限元分析 抗扭承载力 

分 类 号：TU398.9[建筑科学—结构工程]