Research On Construction Technology Of Reconstructed Project Of No 1 Tuojiang Bridge

Arch bridge has a long history and a variety of applications in China, since ZhaoZhou bridge was built ,it was 1400 ago. especially the new china is built,the arch of our country is rapidly developed.and among all the arch bridge types,reinforced concrete(RC) arch bridge is most applied. At present, the main construction methods of long span (RC) arch bridge in China are arch centering method,cable-hoisting erection method,recast segmental cantilever method, swing method and Melan method.Taking NO.1 Tuojiang bridge as a project background , it studies about the cable-hoisting erection method in reinforced concrete(RC) arch bridge construction.Based on the analysis of the construction property of reinforced concrete(RC) arch bridge, this paper put forward the general scheme and basic structure of unified construction, analyzes the mechanical behavior of unified structure of construction statue.Firstly,basic situation of NO 1.Tuojiang bridge is introduced,and represent the general station of the design,the standard of the construction and technology.Secondly,the engineering characteristic of the bridge is introduced ,it point out the importance and the difficulty of the bridge on construction .Finally, the lifting on construction is introduced. beginning with the calculation of the main bearing main cable,it explain the calculation of main cable and other accessory cord,and analyse the state of other accessory structure.so forms a new perfect technology of erection with cableway, applies it in real project and gets excellent effect.