cfrp管约束混凝土柱轴压力学性能试验研究

《cfrp管约束混凝土柱轴压力学性能试验研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、万方数据EXPEⅪⅣ匝NTALSTUDY0NAXIALCOMPRESSIONBEHAVl0ROFCONCRETECOLUⅣ【NSCONFINEDWITHCFRPTUBEABSTRACTConcretecolumnsconfinedwithCFRPtubeisarelativelynewtypeofcompositestructure．Inthissubject，thecompressionpropertiesofconcretecolumnsconfinedwithCFRPthroughtheself-madeCFRPtubealestudied，and

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

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

4、mponents，andthenumericalbearingcapacityvaluesareobtained．ComparedwiththetheoreticalandexperimentalresultsofCFRPcomponents，thefeasibilityofmodelisjudgedandthepropertiesofthetheoreticalformulaaremodified．ExperimentalresultsfromthissubjectCanprovidesomereferenceforthefurtherresearch

5、infutureKEYWORDS：CFRPtube，fiber，ABAQUS，bearingcapacitylI万方数据浙堑工、业太堂亟±堂焦途塞目丞目录摘要⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯一IABSTRACT⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．Ⅱ第一章绪论⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯l1．1研究背景⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯l1．2国内外研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯21．2．1概述⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯

6、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯21．22国内研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯21．23国外研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯41．3本文主要研究内容⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯，．6第二章理论分析⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．72．1概述⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯72．2FRP约束混凝土柱极限强度与极限应变的计算⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．72．3FRP管约束混凝土柱轴心受压承载力计算⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．82．4本章小结⋯

7、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯一10第三章有限元分析⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯1l3．1概述⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．113．2有限单元法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．113．2．1概述⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．113．2．2有限单元法计算步骤⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．113．3ABAQUS软件介绍⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．123．4材料模型⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯3．4．1混凝土本

8、构关系⋯⋯⋯⋯⋯⋯⋯⋯⋯3．4．2CFRP管本构关系⋯⋯⋯⋯⋯⋯⋯⋯．3．5CF