烏家坪1號大橋雙壁高墩連續(xù)剛構(gòu)快速施工技術(shù).pdf

1、西南交通大學(xué)碩士學(xué)位論文烏家坪1號大橋雙壁高墩連續(xù)剛構(gòu)快速施工技術(shù)姓名：唐達(dá)昆申請學(xué)位級別：碩士專業(yè)：建筑與土木工程指導(dǎo)教師：李成輝鄒振華20030301西南交通大學(xué)碩士研究生學(xué)位論文’第1I頁AbstractInconstructionofthecontinuousrigidframebridgewithhighpiers，duetesearchandproductionofcertainformsystemssuchasthesli

2、pform，theclimbingform，theturnoverformandthetravelingsuspendedwagon，etcconstructiontechnologyofbridgeshasbeencontinuallyimprovedS0astofacilitateitsdevelopmentandnewbridgetypesareadoptedalongwithit。Whereas，constructionform

3、sofhighpiersarestillnotperfectenoughandlineshapesofpief$andcontinuousrigidbeamscarlonlybecontrolledwiththecontrolmethodofcommonbridgesThisthesis，aimingatthefeatureofthedoublelegthinwalt，highpierandlargespanprestressedcon

4、cretecontinuousrigidbridge，No1WujiapingLargeBridge，thekeyworksofNeijiang—KunmingRailwayProject，studiestheconstructiontechnologyofdouble—legandthinwalthighpiers，partialprestressedlateralcombinations，connectingpartsofpiers

5、andbeamsandcantileverpackingofbeambodiesThemaincontentsaleasfollows：1Thehydraulicoutcreeping(alsocalledtoprodexposedtype)turnoverformssystemareadoptedfortheconstructionof77mdoublelegandthin—wallhighpierbodiestodesigntheh

6、ydranliesupportingsystemoftheworkplatformintoexposedsuppoms，thatis，transferringtheweightoftheworkplatformandtheconstructionloadtothepackedpierbodyconcretethroughtheformsystem，withoutneedofembeddingsupportrodsorcasingswit

7、hinthepierbody，S0thatthecasingorthetoprodwillnotbecoheredtotheconcreteagainSOas協(xié)simplifytheconstructionworkmanship，saveW0rkinghoursandconstructionmaterialsandguaranteethepierbodyconcretequalityandconstructionsafety2，Twop

8、artialprestressedreinforcedconcretelateralcombinationsweresetforNo。3andNo4mainpiersofthebridgerespectivelyandNo。0section嫩theconnectingpartofthepierandthebeamhasrathercomplicatedstructureandalargevolumeofconcrete。Tkresear

9、chandapplicationoftheonetimesolidpackingtechnologyfortheateralcombinationandNo0sectionhassuccessfullysolvedsometechnicaldifficulties，forexample，manyconstructionjointsandsettlementofthesupportsystemcanleadtocrackingoftheb