Deck Transverse Deflection Analysis Of Box Beam

Under selfgravity and secondary dead load,the wide steel box girder cable-stay bridge has a large deflection in transverse. This deflection can not be neglect in bridge design.This paper adopts the steel box girder design of main span of Anqing Changjiang Highway Bridge as the study backgrouds, The thesis uses structrial analysis module of Ansys software, ANSYS5.7, to calculate and analysis the transverse deflection of steel box girder Under selfgravity and secondary dead load . Also, the thesis calculate and analysis the transverse deflection of steel box girder deeply in multiple factors .Firstly , the article introduced the calculative methods and theory of local stress and strain of bridge structure . then program software system of finite element method was introduced.After that, the influential factors to the calculatial result and their values were analysed and suggested . the comparing find out the main factor of the transverse deflection . the degree of the action of the multiple factors works on the deflection is given , which can provide numerical basis for design .