Bayi Hyperbolic Reinforced Concrete Arch Bridge Transformation Of Technical Studies

Bridges are hinges of city road, speedway and railway, which play an important function in national economy. However, when the bridges constructed and have been served for several years, many of them appear various damages and disfigurement inevitably because of aged structural materials, more and more vehicle load, increasingly deteriorated environment and fund deficit of maintenance, which results in loading capacity, stiffness and endurance of structure down, and their operation conditions don't meet requirement of society development.Based on the bridge existing technical condition, the diseases of Bayi Road reinforced concrete arch bridge, the necessary for the pass through of vehicles and the tendency of the future traffic development, this paper will analysis the reinforcement and transformation's necessity and possibility of Bayi Road cross lines bridge. This paper will also compare the technical economic efficiency and the social benefit of each kind of reinforcement method, then make the choose of the reasonable reinforcement plan.Based on the examination result of the road surface's disease of Bayi Road cross lines bridge and the requirement of comfortable driving, this paper will carry on the construction and transformation to the road surface of Bayi Road cross lines bridge. This paper will also carry on the effective monitoring to the structure's stress and distortion in the process of the bridge floor's transformation and construction.In order to guarantee the structure endogenic force and the distortion locates in the safe scope throughout the process of the main span's construction and transformation, the arc's axis line and the bridge floor's linear shape conforms to the design requests, and the structure stressful condition approaches the design expects under the dead loads, this paper will carry on the strict construction control during the transformation construction of the arched bridge's main body.This paper will study the reinforcement construction technology on Bayi Road cross lines bridge according to the construction plan and the characteristic craft used in the construction process, then we can accumulate experience for later similar bridge reinforcement construction.