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1、1K412031掌握现浇预应力（钢筋）混凝土连续梁施工技术TheconcretecontinuousbeamisnowpouredThestentmethodisnowpouringprestressedconcretecontinuousbeamThefoundationbearingcapacityofthebracketsshallmeettherequirementsand,whennecessary,strengthenthetreatmentorothermeasures・Thereshouldbeaneasyandfeasible
2、waytoremovethemold.Aftertheinstallationofvariousstentsandtemplates,itisadvisabletotakepre-pressuremethodtoeliminatethenon-elasticdeformation,suchastheclearaneeandsettlementoffoundation.Wheninstallingthebracket,theprearchingdegreeshouldbesetaccordingtotheelasticity,non-elasti
3、cdeformat!onofthebeamandbracket・Thereshouldbegooddrainageatthebottomofthebracketandnotbesoakedbywater・Measuresshouldbetakentopreventtheunevensubsidenceofstentswhenpouringconcrete・PrestressedconcretecontinuousbeamisplacedonthemovingframeTheconstructionofasectionmustbelocatedn
4、earzeropoint.Inthecaseoftheboxgirderandoutertemplate,theerroroftheplanesize,heightandprecambermustbecontrolledwithinthepermissiblerange・Themaindeviceforthecantileverisapairofwalkingbaskets.Themaindesignparametersofthebasketstructureshallmeetthefollowingrules:Theratioofthequa
5、lityofthehangingbaskettotheconcreteofgirderis0・3~0.5.Underspecialcircumstances,nomorethan0.7.Allowmaximumdistortion(includingthetotalofthestrapdeformation)to20mm.Afterassembly,theinstallationqualityshouldbeinspectedandtheloadtestshouldbedoneaccordingtothedesignloadtoeliminat
6、ethenon-elasticdeformation.CastingaparagraphThesuspensiongirdershouldbedividedintofourparts:Block(0block);Thesectionoftheroofofthepier(block0).Theedgeoftheholeisnowinthegirder.Themainbeamspansthemiddlestage.SuspensionorderandrequirementsTocasta0sectiononthetopofthepierorthef
7、rameofthehouse.Mountthecantileverhangingbasketonblock0,andthencastthemainbeamtothefrontoftheline・Theliningoftheliningoftheliningoftheframe・4.Inthefinalpouring,thecontinuousbeamsystemisformed.Inliangbeforeconcretepouring,hangingbasket(bracketorhouse),templates,prestressedconc
8、retepipe,steelbar,embeddedparts,concretematerials,mixproportion,mechanicale
