Yunyang Shuangjiang Bridge is an important bridge on the national highway G348 line, after 23 years of operation and use, the bridge has different degrees of disease, there is a serious "veneer force" phenomenon, there may be safety risks. The maintenance and reinforcement project is mainly to replace the whole bridge deck to solve the problem of poor integrity and uneven force of the small hinge joint bridge deckOptimize the bridge deck structure to ensure that the overall dead load of the bridge before and after the renovation is basically unchanged, restore the bearing capacity level of the bridge, and improve the service level.
The project has carried out a number of innovations in design, technology, management mode and other aspects. The first is to realize the technological innovation of "large hinged seam bridge deck";The second is to realize the innovation of construction technology and materials such as rail-mounted gantry cranes, seamless expansion joints, and ultra-high-performance concrete UHPCThird, at the same time of a number of technological innovations, fully optimize the whole process of construction process, create an EPC business management model, effectively shorten the total construction period, the quality of the project is qualified after inspection and acceptance, and the bridge structure diseases are quickly targeted, which quickly and thoroughly solves the safety risks of the bridge, enhances the driving comfort and durability of the bridge, and escorts the safe operation of the bridge.
Reporter: Liu Ting Correspondent: Liao Li
Editor: Xiong Meiling.
Editor-in-charge: Liu Taixing.
Final review: Zhong Hua.