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1、Discussionon"T11ShapedRigidFrameBoxGirderStructuralCharacteristicsAndConstruction浅谈“T形刚构桥箱梁受力特点与施工张永海摘要：盘县红果至两河快速通道竹簣河大桥采用左右分幅设计，半幅宽度为1700®全桥跨径为（67+120+60米的预应力连续刚构梁桥，上部结构采用变截面单箱单室结构，箱梁顶板宽17.0米,底板宽&0米，翼缘悬臂长45米，箱梁高度（梁高以裸箱梁低侧腹板处箱梁顶面到箱梁底面的距离计〉在主墩与箱梁相接的根部断面梁高为7
2、.5米，现浇段和合拢段梁高均为3.0米，其余梁底下缘按20米次抛物线变化，0号梁段总长13米，与墩身对应的8米范围内等梁高（7・5米），两边各25米范围内位于抛物线上，每个县浇“T纵向对称划分为13节段,梁段及梁段长从根部至跨中分别人6X3.5m7X15®节段悬臂节段最大重量2312KN边、中跨合扰段长均为2n）边跨现浇段长5®箱梁采用C50混凝土。0号段施工拟在墩顶预埋牛腿支承的托架上进行，预埋牛腿及托架应认真设计验算，保证其有足够的强度及刚度。0号梁段浇筑完后在上面拼装挂篮，悬臂段采用挂篮施工方法进行施
3、工。边跨现浇段采用支架施工，中跨现浇段采用吊架施工。关键词：竹簣河大桥；箱梁内力特点；挂篮施工;Sunmary:PanXianHongGotoTVvoRiverquicklychanne1ZuJingRiverBridgeusedaroundpointssitedesign,halfsitewidthfor1700cn)ful1bridgespanfor67+120+60mofprestressedcontinuousjuststructurebeambridge,upperstructureusedvar
4、iablesectionsingleboxsinglerocmstructure,boxbeamroofwide17njbackplanewide8他wingmarginhangingarmlong45mboxbeamheight(beamtonudeboxbeamlowsideabdcminalplateDepartmentboxbeamtopsurfacetoboxbeamendofsurfaceofdistancemete^inmainPierandboxbeamtouchesofrootssecti
5、onbeamfor7.5mCast—in-placesegmentandclosuresectionbeamaverageis3metershigh,remainingbeamundermarginby2mtimesparabolachanges,No.0,beamparagraphtotallong13andPierbodycorrespondstoof8mrangewithin,beam(7.5"，onbothsidesthe25mrangewithinislocatedinthrewreal1ineS
6、hangeachcountypoured11111verticalsymmetricDivisionfor13sectionparagraph,beamparagraphandthebeamlongfronrootstoacrossintherespectivelypeople6X3.and7X4.5n)sectionparagraphhangingaimsectionparagraphmaxiiwmweight2312KNEdge,cross—talkinlength2msidecastlong5n)bo
7、xgirderconcreteC50.ConstructionofPiertopwillfitintheembedded,Nd0bracketsupportbracket,checkingcomputationofembeddedbracketandbracketshouldbecarefullydesignedtoensuresufficientstrengthandstiffness・SegmentNo.0,afterpouringoutattheassembledabovecradle,cantile
8、verconstructionmethodforconstructionofhangingbasketCrossin—situconstruction,constructionofcastinplaceusinghanger.Keywords:ZujingRiverBridgecharacteristicsofinnerforceofboxgirder;constructionofhangingbasket“T形
