25m简支预应力偏载T梁设计分析

AbstractBridge is the connection sea to shining sea,shorten the distance.In front of the trafficproblems are now so nervous,Bridges is to adapt to the development of The Times,havesprung up constantly built,along with the rapid development of urban construction in ourcountry,the large-scale construction of the bridge has been gradually formed.Due to itssimple construction,cross amplitude ambassador to prestressed concrete simply supportedT beam bridge in our country are fully used.This graduation design is 25 m prestressed concrete simply supported T beam bridgedesign,this paper mainly describes the use of Midas software design and calculationprocess of the bridge.In view of the selected prestressed concrete simply supported Tbeam bridge has carried on the detailed cross section design,calculation of load,prestressed steel beam layout and the calculation of the loss of prestress.Bridge this designfor the span of 25 m,width:0.5+16.0+0.5=17.0 m,the number of lanes to fourlanes;Motor load is highway-grade I.Specific include the following several parts:bridgelayout,structure size for each part;Select calculation structure diagram;Dead load internalforce calculation;Live load internal force calculation;Load combination;Estimate and itsarrangement of prestressed steel beamReinforcement calculation;Loss of prestresscalculation.Key word:prestressed concrete beam bridge internal force calculation