武广客运专线32m预应力混凝土箱梁预制施工技术-学兔兔 www.xuetutu.com

282010432m(430034)1068km66732mU448213U445471A16717767(2010)04--00280411068km66732mL[12]32m326m315m138m45m305mC50C5017152186080mm90mm32m12i211212}LmUl132m232m1002232m33120100205(1963)2001(Email1337605506@qqcorn)tFHg!o'bohf32m293243324In4mm6mm34245t21441(1)(2)(3)(4)45t426015551P0425510mm1020mm46520mmI11kgm3358724773110977155145522100m3h3min215342216d2m3530cm230min2515cm30201043546028d)6014d6171521860oVM61608010d30d10562(4)42N62N2a2Nlb---2N2c2N32N72N102N2d0---01a()()01a(4)02N92N82N1a2N2d2N52N42N2b2N102N72N62N1b2N2c--2N2aoo2ak()----O(5min)02a()010MPadrt6363125mm25mm006008MPa3min060MPa48h40min3d5632C50101050mm6028d6014d32m7200[1]32mEJ]2006(5)5154E2]32m[-J12008(S1)46[3]350()[z]2006ConstructionTechniquesforPrecastingof32mSpanPCBoxGirdersofWuhan_GuangzhouPassengerDedicatedRailwayZHUChen(BridgeScienceResearchInstituteLtdChinaRailwayMajorBridgeEngineeringGroupCoLtdWuhan430034China)AbstractThetotallengthofWuhanGuangzhouPassengerDedicatedRailwayis1068kmofwhichthelengthofthebridgesandtunnelsontherailwayaccountsfor667VooForthebridgesthedoubletrackfullspansimplysupportedprestressedconcrete(PC)boxgirdersarrangedin32mequalspansarethemajorstructuraltypeThegirderswereprecastwithhighperformanceconcreteineachfullspaninprecastyardsthroughtheprincipalworkingproceduresoftheconstructionpreparationformworkconstructionconcreteconstructionprestressingconstructionandthequalityofprecastingofthegirdersinsuchprocedureswasgoodKeywordshighspeedrailwayrailwaybridgeprestressedconcretegirderboxgirderconstructiontechniquel'''''lib-l'''''''''''libl''''''2011()()ICONDACAJCD(ISSN1003--4722CN16(80)1200421191U3854)(28)7200103(027)83519506()83550081()Emailqlkxyjs@publicwhhbcnqljs@ztmbeccom430034(027)83360005201012