圓多腔體中空鋼管混凝土抗扭承載力分析

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中圖分類號：TU398.9 文獻(xiàn)標(biāo)志碼：A 文章編號：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

基金項(xiàng)目：陜西省“十四五”教育科學(xué)規(guī)劃2024年度課題（SGH24Y2680）；西安培華學(xué)院2023年度校級科研項(xiàng)目（PHKT2303）。（剩余7629字）