復(fù)式鋼管高強(qiáng)混凝土軸壓短柱力學(xué)性能研究.pdf

1、西南科技大學(xué)碩士學(xué)位論文復(fù)式鋼管高強(qiáng)混凝土軸壓短柱力學(xué)性能研究姓名：彭英義申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：譚克鋒；姚勇20110611西南科技大學(xué)碩士研究生學(xué)位論文’第1I頁(yè)AbstractForsteeltubehighstrengthconcrete，TheConstraintfunctionofsteelpipecanimprovethecoreconcretestrength，andimprovetheductilit

2、yofthehighstrengthconcreteBesideshavingmonolayersteeltubeofhighstrengthconcreteadvantages，Duplexsteeltubehighstrengthconcretestillhavegoodfireproofsafetysuperiorseismicperformance，WhichcanStrengtheningexistingCFSTcolumna

3、ndeffectivelyavoidtubewallofmaterialstoothicktosupplyanddifficultiesofmanufactureInrecentyears，Asakindofnewtypecompositestructure，Duplexsteeltubehighstrengthconcretesadlyarisenfordomesticallyandabroad，andit’Sdevelopmentp

4、rospectsisgoodSofarafewscholarsfordomesticallyandabroadcarryouttherelevantresearchworkforsuchformsofcomponents，WhichmainlyconcentratedintheaxialcompressiveforceperformanceBecauseofthelackofdetailedandin—depthstudyoftheth

5、eoryActualtheengineeringapplicationisveryinconvenienceThemechanicalpropertiesof18duplexsteeltubularHighStrengthConcreteshortcolumnsarestudiedThetestresultsshowthattheutilizationofdoublesteelpipecaneffectivelyincreasethel

6、oadbearingcapacityanddeformationcapacityTheincreaseofcoreconcretestrengthisdirectlyproportionaltothesteelcontentandtheinnerandoutertubediametertothicknessratiosTheformulausedtocalculatingtheloadbearingcapacityofduplexste

7、eltubularHighStrengthConcreteshortcolumnsisobtainedBymeansofafiniteelementanalysissoftwareANSYS90，andcombinedwiththeresultofpracticalexperiment，DuplexsteeltubularHighStrengthConcreteshortcolumnsarenumericalsimulatedThelo