es.Thesuperstructureissingleboxsingleroomnon-equalboxbeam.Theheightofthebeamis2m.ingcontinuousgirders.Thisessayfocusesonthedesignandcalculationprocessofthesuperstructure.Firstly,makeanoverallstructuredesignofthemainspanandstudyoutsuperstructure’ssize.Secondlyperformthecalculationoftheinternalforceandreinforcingbaronthesuperstructure.Thirdly,checktheintensity,stress.Finally,checkthedeflection.Themainpointsofthedesignareasthefollows:Thearrangementofthebridgelayout;Theprotocolofthesuperstructure’ssize;Thecalculationoftheinternalforce;Thearrangementofprestressedreinforcingbar;Thecalculationoftheprestressedloss;Thecheckofthesectionintensity;Thecheckoftheresistingofcrack;Thecheckofthesectionstress;Thecheckofthedeflection.KEYWORDS:prestressedconcretecontinuousbridge,boxgirder,action,stress,camber
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