圆多腔体中空钢管混凝土抗扭承载力分析

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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

Abstract：Inorder tostudythetorsional bearingcapacityofcircular multi-cavityholowconcrete flledsteel tubularcolumns， thetorsional bearingcapacityof24column modelswithaxialcompresionratioandsection formasbasic parametersunder uniaxialandreciprocatingloading isanalyzd.Theresultsshowthattheconcrete filedcircularmulti-cavityhollowsteltube modelhasstronger torsionalbearingcapacity thantheconcretefilledcircularholowsteltube model Whentheaxialcompresion ratio≤0.4，the modelof circularfour-cavity hollow sandwichconcrete filedsteetubecolumnsunderuniaxialloading has remarkabletorsionresistance，concrete flled hollow steeltubularcolumns with circularsix cavities havegood torsionalcapacity and ductility under axial compression ratio of 0 ～ 0 . 6 ，the torsional bearing capacity of the circular multi-cavity hollow concrete filed tel tubecolumnmodelunderreciprocatingloadingislargerthanthatofthecrcularhollowconceteflledsteelubemodel.

Key words：round multi-cavityhollowsteel tube；axialcompresionratio；finite elementanalysis；torsionalbearingcapacity

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）。（剩余7629字）