现浇箱梁碗扣式支架及钢管柱门洞支架施工技术交底》 15页

现浇箱梁碗扣式支架及钢管柱门洞支架施工技术交底一、设计概况：1）、西丽货站段主线桥：主线桥由左、右两幅独立的桥梁组成，两幅桥梁宽度由17米至28米，中间净距2.5米。左、右两幅桥长分别为856.388米、827.424米。上部结构为预应力钢筋混凝土连续箱梁，单孔跨径30米~40米，布置为3~4跨一联，左幅桥共8联，右幅桥共7联。箱梁断面为单箱3~6室，梁底宽度10.95~21.96m，梁高1.7米，两侧翼板宽度2.25m，混凝土标号为C50。桥下净空为6.3~11m。2）、C匝道桥，桥梁宽度由9米至17.9米，桥长368.3米。起点连接F匝道和南光高速出口匝道桥，终点在右幅Y59桥墩处接主线桥。上部结构为预应力钢筋混凝土连续箱梁，单孔跨径22.66米~30米，布置为3~5跨一联，全桥共3联13跨。箱梁断面为单箱1~3室，梁底宽度10.95~21.96m，两侧翼板宽度1.50m，梁高1.7米，混凝土标号为C50。桥下净高为5~11.2m。3）、F匝道桥F匝道桥桥梁宽度为8米等宽，桥长304.42米。起点与广深高速公路南头出入口的苜蓿立交匝道相连，终点接C匝道桥。因第2联斜跨广深高速公路，上部结构采用钢箱梁结构。第1联上部结构采用预应力钢筋混凝土连续箱梁，断面为单箱单室，梁底宽度3.40m，两侧翼板宽度1.6m，梁高1.7米，混凝土标号为C50。桥下净高为2~6.8m。4）各联现浇箱梁的尺寸见下表：Opinionsandsuggestionsontheparty'smasslineeducationalpracticeAccordingtothecentralandprovincial,municipalunifieddeployment,accordingtomunicipalPartycommittee"aboutcarryingouttheparty'smasslineeducationalpracticeactivityinthecity'simplementationopinions,thespiritoftheparty'smasslineeducationalpracticeactivitiesfrom20**inJanuaryto99months,carriedoutatalllevelsofdepartmentsanddirectlyaffiliatedinstitutionsandgrass-rootspartyorganizations.AccordingtomyactualCounty,thecountytocarryouttheeducationpracticeputforwardthefollowingimplementationopinions.First,theoverallrequirementsCountycountyeducationpracticetotheeighteenPartyofeight,thespiritofthethethirdPlenarySessionofthe18thCPCCentralCommitteeastheguidance,conscientiouslyimplementthespiritofgeneralsecretaryXiJinpingbookseriesofimportantspeech,earnestlyimplementtheCentralCommitteereally,opinionsandadvice><<>,<<>,<<>,<<>,<<>,<<>,<<>,<<>,<<>,<<>,<<>,<<>,<<>,<<>,<<>,