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1、浅谈钢管混凝土拱桥及其施工方法（Discussiononconcretefilledsteeltubearchbridgeanditsconstructionmethod）DiscussiononconcretefilledsteeltubearchbridgeanditsconstructionmethodSecondEngineeringCo.,Ltd.NieZhonghuiInthispaper,theconstructionhistoryofthearchbridgeisbrieflyreviewed,andtheconstructionmethodofthearchbridgeis
2、brieflydescribed.Keywords:concretefilledsteeltubearchbridge.Construction1.PrefaceIntheprocessofdevelopmentandchangeofbridgestructure,archbridgeisusedasthebendingstructure,andwiththeincreaseofspan,theapplicationofhigh-strengthmaterialisaffectedTothestabilityproblem,butthereinforcedconcreteandprestre
3、ssedconcretearchbridgeduetolargedeadweight,constructionerectionproblemsprominent.GaoqiangcaiTheapplicationofmaterialandthedifficultyofnonsupportconstructionalsorestrictthedevelopmentofarchbridge.LiangShiqiaoadoptedprestressstructure,becauseofprestressThehighstrengthsteelandhighgradeconcretecanbeapp
4、lied,andthesegmentalconstructionisrealizedintheconstruction,sothelifeisfullofvigor.stayInthiscase,manybridgeworkershavemadeaseriesofexplorationsintheapplicationandconstructionofhighstrengthmaterialsforarchbridges,suchasprestressedmaterialsApplication,developmentofnewstructures,developmentofnonsuppo
5、rtconstructionmethodsandsoon,aretheresultsoftheseexplorations.2.DevelopmentstatusofCFSTArchBridgeSince1990,China'sfirstCFSTarchbridge!!!SichuanWangcangEastRiverBridge(span115mthroughtiedarch)Sincethecompletionoftheconstruction,theapplicationofconcretefilledsteeltubularstructuresonbridgeshassolvedtw
6、omajordifficultiesintheapplicationandconstructionofhighstrengthmaterialsforArchBridgesTherefore,concrete-filledsteeltubearchbridgeshavedevelopedrapidlyinchina.Althoughconcrete-filledsteeltubearchbridgeshaveappearedintheformerSovietUnionin30s,therehavebeenafewoftheminforeigncountriesinrecentyears,bu
7、ttherealonesarenotenoughThedevelopmentofChinain90sismainlyduetothefollowingpoints.(1)inrecentyears,greateffortshavebeenmadetostrengthentheconstructionoftransportationinfrastructureinChina,andalargenumberofb
