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1、Seediscussions,stats,andauthorprofilesforthispublicationat:https://www.researchgate.net/publication/289944366Researchonconfiningreinforcementforhigh-strengthconcretecolumnswithhigh-strengthstirrupsArticle·October2010CITATIONSREADS3924authors,including:DongshengWan
2、gHebeiUniversityofTechnology72PUBLICATIONS366CITATIONSSEEPROFILEAllcontentfollowingthispagewasuploadedbyDongshengWangon09August2016.Theuserhasrequestedenhancementofthedownloadedfile.第27卷第10期Vol.27No.10工程力学2010年10月Oct.2010ENGINEERINGMECHANICS182文章编号:1000-4750(2010
3、)10-0182-08高强箍筋高强混凝土柱约束箍筋用量研究12*11孙治国,司炳君,王东升,于德海(1.大连海事大学道路与桥梁工程研究所,辽宁,大连116026;2.大连理工大学海岸和近海工程国家重点实验室,辽宁,大连116024)摘要:为研究高强箍筋约束高强混凝土柱塑性铰区配箍要求,统计了国内外进行的98个矩形截面和11个圆形截面高强箍筋高强钢筋混凝土柱拟静力试验数据。分析了影响高强箍筋高强混凝土柱延性抗震能力的主要因素为配箍特征值、轴压比、纵筋配筋、混凝土保护层厚度等。在此基础上,通过回归分析分别以2%和3%极限位移
4、角为延性目标,建议了具有85%保证率的高强箍筋高强混凝土柱塑性铰区约束箍筋用量计算公式及配箍构造措施,适用于混凝土轴心抗压强度在40MPa―110MPa之间,箍筋屈服强度在400MPa―800MPa之间,试验轴压比在0―0.6之间的高强箍筋高强混凝土柱。关键词:结构工程;高强箍筋;高强混凝土;框架柱;延性中图分类号:TU375.3文献标识码:ARESEARCHONCONFININGREINFORCEMENTFORHIGH-STRENGTHCONCRETECOLUMNSWITHHIGH-STRENGTHSTIRRUPS12
5、*11SUNZhi-guo,SIBing-jun,WANGDong-sheng,YUDe-hai(1.InstituteofRoadandBridgeEngineering,DalianMaritimeUniversity,Dalian,Liaoning116026,China;2.StateKeyLaboratoryofCoastalandOffshoreEngineering,DalianUniversityofTechnology,Dalian,Liaoning116024,China)Abstract:Quasi
6、-statictestresultsof98rectangularand11circularhigh-strengthconcrete(HSC)columnswithhigh-strengthstirrups(HSS)arecollectedtostudytheconfiningreinforcementforductileHSCcolumns.Basedontheanalysisoftestresults,itisconcludedtheparametersthathavesignificantinfluenceson
7、theductilityofHSCcolumnsarecharacteristicvalueofstirrups,axialloadratio,longitudinalreinforcementandconcretecoverthickness.Basedonregressionanalysis,designequationsanddesigndetailsaresuggested,whichstipulatetheamountofconfiningreinforcementrequiredtoachieveultima
8、tedriftratiosof2%and3%with85%assurancerateforHSCcolumns.Thedesignequationsanddetailscanbeappliedtothecolumnswithconcretecompressionstrengthof40MPa―110MPa,stirr