Research And Practice Of Reinforcement And Maintenance Methods Of Hollow Slab Beam Bridge

With the continuous development of our economy,our country enterprise of Bridge also got great progress,Precast hollow slab beam bridge because of its simple prefabricated,small difficulty of construction,low cost and lower environmental requirements is widely used in small and medium span Bridges.A large number of engineering practice shows that the characteristics and construction technology of hollow slab bridge itself has led to the production of a variety of diseases,which seriouly affected the bearing capacity and durability of the bridge.Therefore,further studying of the mechanism of disease,and discussing the strengthening methods according to different forms of disease is very important to ensure the safety of stress of the hollow slab bridge.This paper based on the CaEr bridge strengthening maintenance carried out the following research work:Analysis and summary of hollow slab beam bridge,such as the overall stress,common diseases and the causes of disease,degree of disease classification methods and strengthening methods.Evaluate the bridge technical condition Through routine testing,static load test,dynamic loading test.According to the actual situation of bridge diseases,design of the bridge reinforcement maintenance plan,through the calculation analysis and the bridge test verify the bridge reinforcement repair effect.