苏河大桥设计

ABSTRACTIn this design,according to local actual terrain and specification requirements,Based on the current bridge design specification of prestressed concrete continuousgirder bridge forward and arch bridge two schemes.According to the "practical,beautiful,safe,economic and convenient for construction of bridge design principles,structure after the bridge of various final choice of 52m +82m 52m prestressedconcrete continuous girder bridge design for this recommendation.This design using the dr bridge software analysis the structure,according to thesize of the bridge,the basic model establishment bridge worked,then force analysis,calculation results of reinforced,for each phase analysis and construction.At thesame time,must consider the concrete shrinkage,Creep force times andtemperature resultant times factors.The design of prestressed concrete continuous girder bridge is mainly the upperstructure design,in the design of the main bridge layout and structure size,loadcalculation,bridge prestressing tendons estimation and layout,the loss of prestressand stress of the bridge,the resultant checked,internal combination calculation,section stress calculation girder.Finally,after analysis shows that the design calculation method of calculatingthe internal force distribution,reasonable,comply with the design requirements ofthe task.KEY WORDS:Selection scheme:Continuous girder bridge:Arch bridge:Structureanalysis:checking computation