連續(xù)梁橋施工期和使用期體系可靠性分析.pdf

1、學(xué)校代號學(xué)號密級1053603054018長沙理工大學(xué)碩士學(xué)位論文Y975786連續(xù)梁橋施工期和使用期體系可靠性分析學(xué)位申請人姓名龔塞傻培養(yǎng)單位疊銎生籃翅工程生隆導(dǎo)師姓名及職稱i＆建￡塾攫到揚副熬援學(xué)科專業(yè)楹翌曼隧道』程研究方向橋梁結(jié)構(gòu)可靠度1J優(yōu)化設(shè)計論文提交日期2Q逝生旦AbstractAccordingtothesafetyaccidentsduringconstructionforrecentyears，thereliabili

2、tystudyforbridgestructuresthisperiodisworthbeattentionItisimportanttodevelopbridgereliabilitytheorybasedonconstructionperiodOnonehand，duetosomefactors，thebearingcapacityofbridgesdeceaseduringservicelifeTime—varyingreliab

3、ilityanalysisofexistingRCbridgeareurgentquestionstObesolvedBasedontheexistingreliabilitytheoryofengineeringstructuresandengineeringpractice，thetime—varyingreliabilityanalysisofthecontinuousRCbridgeduringconstructionperio

4、dandservicelifeisstudiedThemainworkisasfollows：1)Onthebasisofthedifferentialequivalentcircularreliabilitymethodinparallelstructuralsystems，thisthesisgivesthedifferentialequivalentcircularreliabilitymethodinserialstructur

5、alsystemsAccordingtothepseudovariablesmethod，parameterssensitivityanalysismethodofstructuresystemsreliabilityisintroduced2)Themainbeam，thepierthetemporaryconcretionsystemandthepilefoundationsystemareconsideredasfourfailu

6、remodes，andmakeupoftheserialstructuralsystemsofthecantileversystemofconstructionperiodReliabilityanalysisofthesefailuremodesisstudiedThereliabilityanalysismethodofthecantileversystemduringconstructionperiodconsideringthe

7、constructionprocessisgivenYueyangLinzikoubridgeisconsideredasengineeringexample，thereliabilityofthekeyconstructionprocess’ScantileversystemisanalyzedAdditionallybasedonthemethodintroducedbeforeParameterssensitivityanalys

8、isofthecantileversystemsreliabilityisgiven3)Theexistingtime—varyingmodelofreinforcementstrengthanditsarea，andthetime—varyingmodelofconcretestrengthoftheRCbridgearesummarizedByintroducingainconstantvariableofresistance，in

9、constanttime—varyingmodelsoftheseparametersareintroducedThisthsisstudiedfailureprinciplesoffailureformsofthecontinuousRCbridge，andintroducesthefailurerulesandreliabilityanalysismethodofthesystemBasedononesection—sameands

10、pan—varyingcontinuousRCbridge，thetime—varyingreliabilityofthesystemduringservicingisanalyzedBasedonthemethodthatisintroducedinthisthsis，resistance’SparameterssensitivityanalysisofthecantileversystemreliabilityisgivenAnd，