分體式箱梁橋的受力分析和設(shè)計(jì)計(jì)算方法研究.pdf

1、武漢理工大學(xué)碩士學(xué)位論文分體式箱梁橋的受力分析和設(shè)計(jì)計(jì)算方法研究姓名：趙磊申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：橋梁與隧道工程指導(dǎo)教師：馮仲仁20060401AbstractPrestressedconcreteseparativebox—girderwithitsartisticcontour，smallcrosssectional，moreovercaIleffectivelyusethehighstrengthmaterial，thetotal

2、crosssectionparticipateworking，thebettersurmountsability，soitiswidelyusedinbeambridgeinrecentyearsAlongwiththepopularizationandapplicationofseparativebox—girderpeoplealreadynotsolelyrequestedthestmctureanalysistobeablete

3、flecttheactualsituationhopedcouldobtainthesatisfactoryresultquicklyandeconomicallyAccordingtothematerialstheauthorinducedsomeinsu伍ciencyabouttheresearchingofseparativebox—girderbridge，thencarryonstudiesanddrawstheconclus

4、ionbelow：1Themethodofcalculatingtransversedistributionofloadsofseparativebox—girderbridgeexistdifferenceandtheirregularplasticityinthedesigningTheauthorusestwokindofmethodsanalysisthesimplysupportedseparativebox—girderbr

5、idgeandthecontinuousseparativeboxgirderbridge，theresultofthetwomethodapproachesequally，theresultofthemethodofrigidity(hinge)girdercansatisfythedesignprecision，moreovercomparingwiththecomplexfiniteelementmethod，themethodo

6、frigidity(hinge)girderhastheadvantagesofsuccinctandfast2Forsimplysupportedseparativebox—girderthetraversecoefficientofmiddlegirderchangessharplyinthebridgespan，wecanusetheCROSScentertraversecoefficienttocalculatethebendi

7、ngmomentofvarioussections，atthesametimes，weshouldasfaraspossibletochecktheendogenicforceofsomespecialsectionsnetraversecoefficientofthesidegirderchangesgentleinthebridgespanwemayusethevalueofCROSScenterteplacethevalueofo

8、thersectionsTheerrorisnotbigWhencalculatingtheloadtraversecoefficientaroundthesupport，theprincilclleofreleaseleverisnolongersuit曲leinthissituation3Themethodofequivalentstiffnesscalculatingthetraversetoefficientofcontinuo

9、usbeamindirectlyisassuitableasthespatialfiniteelementmethod，theresultsoftwomethodtallieswellWecancalculatethetraversecoefficientofcontinuousbeammoreconvenientlywhenwecombinethemethodofequivalentstiffnessandthemethodofrig

10、idity(hinge)girder4ThespacefiniteelementanalysisindicatedthattheprestressedconcreteboxgirdersStreSsandthedistortionaresensitiretothechangeofgradientoftemperaturepaRemTherefore，weshouldaspossibleaswecanchoosesuitablegradi

11、entoftemperatureforboxgirderaccordingtotheenvironmentandthegeographicalpositionandotherpracticaldetailsofthehighwaybridge，inthefoundationofresearchingactualmaterialmakereasonabledeterminationAtthesametime，wemustconsidert