cfrp管約束混凝土柱軸壓力學(xué)性能試驗(yàn)研究

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1、萬方數(shù)據(jù)EXPEⅪⅣ匝NTALSTUDY0NAXIALCOMPRESSIONBEHAVl0ROFCONCRETECOLUⅣ【NSCONFINEDWITHCFRPTUBEABSTRACTConcretecolumnsconfinedwithCFRPtubeisarelativelynewtypeofcompositestructure．Inthissubject，thecompressionpropertiesofconcretecolumnsconfinedwithCFRPthroughtheself-madeCFRPtubealestudied，and

2、themaincontentsofthisstudyisfocusontheeffectofdifferentoffiberwindingangles，layers，andstrengthgradesofconcrete．Accordingtoexperiments，theultimatebearingcapacityofcompositestructureincreases謝ththeincreaseoffiberwindinglayers，whiledecreasingwiththeincreaseoffiberwindingangle．Meanwh

3、ile，itisfoundintheexperimentsthatthebearingcapacityofconcretecolumnconfinedwithCFRPtubeincreasesmarkedly、擁thlowerconcretestrengthgradethanthoseofhigherconcretestrengthgrade．Inaddition，thecommercialfiniteelementsoftwareABAQUSisusedtosimulatetheaxialcompressionofeightgroupsoftestco

4、mponents，andthenumericalbearingcapacityvaluesareobtained．ComparedwiththetheoreticalandexperimentalresultsofCFRPcomponents，thefeasibilityofmodelisjudgedandthepropertiesofthetheoreticalformulaaremodified．ExperimentalresultsfromthissubjectCanprovidesomereferenceforthefurtherresearch

5、infutureKEYWORDS：CFRPtube，fiber，ABAQUS，bearingcapacitylI萬方數(shù)據(jù)浙塹工、業(yè)太堂亟±堂焦途塞目丞目錄摘要???????????????????????????一IABSTRACT????????????????????????????????．．Ⅱ第一章緒論????????????????????????l1．1研究背景???????????????????????????l1．2國(guó)內(nèi)外研究現(xiàn)狀????????????????????????21．2．1概述??????????????????????

6、???????????????????21．22國(guó)內(nèi)研究現(xiàn)狀???????????????????????????21．23國(guó)外研究現(xiàn)狀???????????????????????????41．3本文主要研究?jī)?nèi)容??????????????????????，．6第二章理論分析??????????????????????．72．1概述?????????????????????????????72．2FRP約束混凝土柱極限強(qiáng)度與極限應(yīng)變的計(jì)算???????????．72．3FRP管約束混凝土柱軸心受壓承載力計(jì)算?????????????．82．4本章小結(jié)?

7、?????????????????????????一10第三章有限元分析?????????????????????1l3．1概述????????????????????????????．．113．2有限單元法?????????????????????????．．113．2．1概述??????????????????????????????．113．2．2有限單元法計(jì)算步驟???????????????????????．113．3ABAQUS軟件介紹??????????????????????．．123．4材料模型????????????3．4．1混凝土本

8、構(gòu)關(guān)系?????????3．4．2CFRP管本構(gòu)關(guān)系????????．3．5CF