Analyze, Comparison And Application On The Hinged Jiont Forms Of Hollow Plank Girder Bridge

In recent years, because of its various advantages, hollow plank girder bridges are widely used in bridge constructions. However, it was found in an investigation that many hollow plank girder bridges in servie have various damages in their hinged joint. Although it is a ordinary structure, hollow plank girder bridges is complex in it hinged joints, and related to many factors,many bridges have sever destruction in the hinged joints, creating the bridge "single plank bearing" the characteristic, affects the bridge enormously bearing capacity and the security operation.Based on the research material widely collected from foreign and domestic, aimed at the present research on the hollow plank bridge,my main research content is as follows:1,Do a lot of research and analysis on the damage factor of the hollow plank bridge hinged jiont, respected from design, material, construction, and operation management;2,Study the basic theory of hollow plank girder bridge, and the calculation of the transverse distribution coefficient. Searching the proper theory and calculation method and finite element modeling method;3,Build spatial finite element model, do numerical simulation analysis on the model; Considering the influence of different parameters, and find that how these parameters affect the transverse distribution coefficient of the bridges;4,Relying on the practical engineering application, using this analysis method and the practical engineering theory and the numerical values, and come to the conclusions.5,On the design of the hollow plank girder bridges hinge joints and the in servie hollow plank girder bridges hinge joints's reinforcement and maintenance, some forward opinions. has been proposed.