鋼管高強(qiáng)混凝土核心柱設(shè)計(jì)計(jì)算方法研究

1、大連理工大學(xué)博士學(xué)位論文鋼管高強(qiáng)混凝土核心柱設(shè)計(jì)計(jì)算方法研究姓名：陳周熠申請(qǐng)學(xué)位級(jí)別：博士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：趙國(guó)藩20020601大連理1大學(xué)博士學(xué)位論文Abs仃actThedesignandcalculationmethodofhighstrengthconcretecolumnsreinforcedwithconcretefilledsteeltube，anewkindofstructuralmemberdevelopedin

2、constructionpractice，ispresentedbasedonexperimentalandtheoreticalanalysisMainresearchesarecarriedoutasfollows：ExperimentsoftheshortcolumnsunderaxialcompressionayecarriedouttOinvestigatethemechanicalpropertiessuchasthefai

3、lurefeature，ductilityandthecoordinatedworkingperformanceBasedonthetestresults，theformulaforcalculatingtheultimatestrengthisestablishedOnthebasisofseismicbehaviorexperimentsofhighstrengthconcretecolumnsreinforcedwithconcr

4、etefilledsteeltubetherearetwomethodsforcalculatingflexuralstrengthofthecolumnbeingdiscussedOnemethodiSbaseduponthemethodinbuildingcodeforcalculatingtheflexuralstrengthofreinforcedconcretememberwhiletheotherisbaseduponthe

5、methodofsuperpositiouInthefurtherresearch，themomentaxialloadrelationshipofthecolumnundereccentriccompressionisanalyzedusingfiniteelementmethodTheresultsareingoodagreement、vitlltheexperimentalrcsuitsOnthebasisofshearresis

6、tingbehaviorexperimentsofthecolumn，theformulamodelforcalculatingtheshearseengthofthecolumnispresented，andtheundeterminedcoefficiemintheformulaisregressedusingtheexperimentaldataAccordingtothetestresultsofseismicbehaviore

7、xperiments，thelimitedvaluesofaxialcompressionratioandlimitedvaluesofaxialforceforhighstrengthconcretecolumnsreinforcedwithconcretefilledsteeltubeareproposedbasedupontheconditionofdisplacementductilityneededforearthquaker

8、esistanceThefeasibilityofapplyingneuralnetworkstoevaluatetheperformanceofthecolumnsisinvestigated，Twopredictionmodels，oneforearthquakeresistancepropertyandtheotherforultimateshearstrength，areestablishedInthefjl2rtherrese

9、arch，theinfluenceofvariousparametersontheearthquakeresistancepropertyandultimateshearstrengtharediscussedApplicationofthecolumninengineeringisintroducedonthebackgroundoftheconstructionofLiaoningProductLargeBuildingThreek