Research On The Causes Of Diseases And Reinforcement Technology Of Highway Bridge

Highway Bridges because of functional degradation,overloading traffic and load level,the part of the bridge maintenance and reinforcement is required,such not only can save resources and capital,and increase the service life and safety of the bridge.To determine the common diseases of girder bridge and its appropriate reinforcement technique,this paper research a certain highway administration of concrete girder bridge diseases,summarized the common diseases of bridge in common;On this basis,according to the disease characteristics of concrete girder bridge,the bridge reinforcement technique is commonly used,such as the bridge deck pavement repair and replacement technology,sealing technology of concrete crack,sticking steel reinforcement measures,and external prestressed strengthening technique on the related research and conclusion;Again,according to the characteristics of the disease of a hollow slab Bridges is proposed in this paper by using prestressed carbon fiber surface strengthening,and according to the reinforcement measures on the construction research.Finally,to verify the prestressed carbon fiber strengthening the actual effect of the hollow slab bridge,bridge detection technology was applied to the bridge reinforcement to carry on the static and dynamic load test,so as to verify the reinforcement effect of the bridge.In this paper,the research results show that the prestressed carbon fiber plate reinforcement can not only effectively closed beam bottom cracks,improve the integrity of the Bridges and the bearing capacity,and the reinforcement technique which can be applied to other types of bridge reinforcement.