Construction And Monitoring Technique Research On Shenzhen Rainbow Bridge

The Shenzhen Rainbow Bridge is near to the Northern Railway Station, which has big cut bag to span over twenty-nine tracks. Arch bridge structure, which has a widely application these years, is taken considering of the bridge height limitation and the site used in downtown. The girder of the bridge is constructed with composite structure of steel and folding concrete slab.This article introduce in detail the construction methodology which includes steel fabrication, piling excavating by manpower, bridge piers, bridge girder, ribs hoisting and the quality controlling in the process of construction.A cable rope system is applied to hoist the arch bridge that is a suspending system before the girders are joined. In order to analyze the system in different phase, the monitoring is necessary and important to guarantee the quality and the safety. The outputs of monitoring are passed the designers and construction unit. This article also introduces the purpose, the method and the implementation if monitoring.Moving and static loading test, outlook check and specialists check, prove that the project is very successful and show the advantages of the composite structure of steel and concrete. The Shenzhen Rainbow Bridge is awarded as "the sample work" and "the price for technology progress".