Structural Design Parameter Research Of Y-shape Bridge

Based on the theory of thin-walled box girder, the paper discusses the Y-shape Bridge in theapplication of the superhighway, urban road bridge and viaduct bridge.Combined with the modelexperiments of herringbone thin-walled box girder, gain the mechanics property rule ofherringbone thin-walled box girder by the structure parameters of restrains, the eccentric,diaphragm, the lengthways gradient and the radius of the curving girder. At last, structure analysis ofsome true bridge is carried out with general finite element program, validate the results of theexperiment and we deeply analyze the different structure parameters under the large range of thechange, find out some valuable conclusions and advices of actual engineering application.