考慮溫度歷程的補(bǔ)償收縮混凝土墻應(yīng)力計(jì)算.pdf

1、華中科技大學(xué)碩士學(xué)位論文考慮溫度歷程的補(bǔ)償收縮混凝土墻應(yīng)力計(jì)算姓名：過凱申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：伋雨林20070123華中科技大學(xué)碩士學(xué)位論文華中科技大學(xué)碩士學(xué)位論文IIAbstractShrinkagecompensationconcrete(SCC)isaneffectivewaytoavoidshrinkagecracksofbasementRCwallwhichhasbeenpopularlyusedfcrac

2、kingcontrolinlargebuildingsextralongstructuresbutdesigningmethodsofSCCarestillatthephaseofexperienceestimation.AsaresulttheindeterminacythereliabilityofthedesigningmethodarereducedsomeSCCapplicationinprojectsfallsflattha

3、twouldrestrictthegeneralizationapplicationoftheSCCundoubtedly.SodevelopingmereasonablecalculatingmethodisanimptantresearchsubjectbothhavinggreatsignificanceinSCCtheiesprojects.InthisthesistheprincipleofSCCwouldbeintroduc

4、edfirstly.Thenthethesisgaveanintroductionofshrinkagecompensationpatternswithsmallmoderateabsoluterestrictions.Alsothecombineddrycoldshrinkagecompensationpatternsofmassconcretelargesectionconcretewereobtained.Basedonthese

5、theiestheapproachofultimatedefmationcompressivestrainofabasementSCCwallinWuhan30daysaftercastingwastakenasanexample.TakingadvantageofsoftwareANSYSthesimulationanalysisofthetemperaturefieldthetemperaturestressfieldoftheba

6、sementSCCwallmentionedbefeduringconstructionperiodwereachievedcomprehensively.AtthesametimetherelationshipbetweeninteriexterirestraintsinthiskindofstructurethetemperaturehistyeffectonexpansionsimulationofSCCwerestudiedto

7、o.Comparingthetemperaturestressresultsofsimulationanalysiswiththeempiricalmethods’thefmeronecanfecasttheprepressingstresscrackresistanteffectoftheexpansionagentmeexactlyinaccdancewiththedistributionvariationdisciplinesof