Maintenance and Reinforcement Design of Relics Steel Arch Bridge

摘要

Many domestic steel structure urban bridges built in the last century have been maintained and strengthened in succession because of reaching their design working life. These old bridges have the triple function of historical culture, human landscape and transportation. The maintenance and reinforcement design method must be fully considered to maximize the protection of the old structure integrity so that they can continue exerting their function and role. Therefore, this paper, taking a relics steel arch bridge in Zhejiang Province as the research background, mainly introduces the optimization and reinforcement design of orthotropic bridge deck system, arch ribs and suspenders. After strengthening the bridge can meet the requirements of the design specification and the protection of cultural relics. It has a certain reference value for the reinforcement design of similar bridges.