簡支轉(zhuǎn)連續(xù)梁橋二次預應力張拉研究.pdf

1、華中科技大學碩士學位論文簡支轉(zhuǎn)連續(xù)梁橋二次預應力張拉研究姓名：游峰申請學位級別：碩士專業(yè)：建筑與土木工程指導教師：朱宏平20061104華中科技大學碩士學位論文AbstractWiththedevelopmentofscienceandtechnologyandcommunication，duetotheirconvenientconstruction，economicalcost，reasonableforcecharacterand

2、comfortabledriving，prestressedcontinuousbeambridgehavemadearapidprogressinrecentyears，andbecomeoneofthemostcompetitivebridgetypesAmongtheseveralkindsofregularconstructionmethodsofbeambridge，themethodofthesimplysupportedc

3、ontinuousconstructionisakindofeffectiveandeconomicalone，comparedwiththeprestressedcontinuousbeambridge，itscostismuchlower，anditisakindofmoreexcellentconstructionmethodsItovercomesthefractureofthejointonlywiththeordinarys

4、teel，andthenon—harmonyissueofthestrainandstressbetweenthestructuresunderdifferentforceItalsostrengthensthestressstoreofthejointbetweenthebeams，andassuresthecontinuousandwholecapabilityofthebridgeInordertoguaranteeenoughs

5、tressstore，goodcontinuityandcontinuum，thepre—stressedtensileforcebetweenthebeamsbecomesamoreimportantsubjectOnthebasisofstudyingandsummarizingformerresearchworkthistextcarriesondeepanalysisandresearchtotheprestressedtens

6、ioninthecourseofthetransitionofthesystemThetextreviewsthecurrentsituationoftheresearchanddiscussesthecharacterofthepre—stressedsimplysupported—continuousbridge，thenthetextanalysestherationalityoftheforceandputsforwardthe

7、topicofresearch，thatistosay，inthecourseofthetransitionofthesystem，therationalconfigurationofthepre—stressedtensileparameterwillexertanimportantinfluencetotheconstructedbridgeInthecourseofthetransitionofthesystem，thetextd

8、oestheoreticalanalysisonthecalculationofthedisplacementandtheforceCombinedwiththeprojectpracticeofsomebridge，thetextmakesthefiniteelementanalysisontheeverystageoftheconstructioninthecourseofthetransitionofthesystem，throu

9、ghthesimulatedcalculation，thetextdrawssomepracticalconclusionsAtthesametime，throughchangingthethreeprimaryparameteroftheprestressedtension：length，quantityandthetensilecontrolstress，thetextgetsthedifferentassociationsofth