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1、萬(wàn)方數(shù)據(jù)ExperimentalStudyonAxialCompressCapacityofPVCPipeConfinedReinforcedConcreteCompositeColumnsABSTRACTPVCpipeconfinedreinforcedconcretecompositecolumnsisanewkindofcomposites廿ucture，andenhancethecapacityofreinforcedconcretecolumnofcompressive，effectivelyreducethecrosssectio
2、nareaofthereinforcedconcretecolunm，improvementoflargecrosssectionofreinforcedconcretestructures，themajorfaults，andtoreducethecomplexreinforcedconcretecolumnformworkfabricationandinstallationprocess，constructionefficiencyandcostsavings，andgivefullplaytothePVCpipematerialouts
3、tandingsocial，economicandenvironmentalbenefits，ithasabroadmarketandapplicationprospect．Thisarticleisonthebasisofexperiment，toexperimentalstudyonaxialcompresscapacityofPVCpipeconfinedreinforcedconcretecompositecolumns．Theexperimentwitlllongitudinalreinforcementratio，stirrupr
4、einforcementratio，internalreinforcementform(centralizedreinforcementanddistributedreinforcement)asthemainparameters，suchasthedifferentparameterchangeonthePVCpipeconstraintstheinfluenceofthecompressivebearingcapacityofreinforcedconcretecolumn．27PVCtubeintestdesignconstraints
5、ofconcretespectmens，testthemonotonousstaticloadtestmethod,llS迦displacementloadingcontrolmethod．Inthispaper,westudythePVCpipeconfinedreinforcedconcretecompositecolumnsofcrackpropagationprocessandthefailurepattern，studythePVCpipeconfinedconcretecolumncompressiondeformationlaw
6、．ResultsshowthatthePVCpipeconcretecolumnhassimilartoordinaryconcretecolumncompressionperformance，mechanicalprocessalsowork也roughfourstages：stageworkbeforePVCpipecracking，PVCducttapecrackcoreconcreteflexibleworkingstage，PVCducttapeandcoreconcretecrackselastic·plasticstagewor
7、k，reachthelimitloadafterfailurestage．ColumnoftheyieldsignisspiralstirrupscrushingofII萬(wàn)方數(shù)據(jù)Thispaperstudiesthelongitudinalreinforcementratio，stirrupreinforcementratio，internalreinforcementforms(suchascentralizedreinforcementanddistributedreinforcement)ofPVCpipeconfinedreinfor
8、cedconcretecompositecolumnsofthecompressivebearingcapacityofreinforcedconcretecolu
