Novel Method for Retrofitting Superstructures and Piers in Aged Steel Railway Bridges
Novel method for retrofitting superstructures and piers in aged steel railway bridges Lin, W; Taniguchi, N; Yoda, T A novel strengthening method using rubber latex mortar, glass fiber reinforced polymer plates, lightweight rapid hardening concrete, and reinforcement bars is proposed in this article. The strengthening method can be used to strengthen both steel railway bridge superstructures and piers. To confirm the effectiveness of the strengthening method, field tests on a short span railway bridge and laboratory tests on longitudinal lateral beam connections and steel piers were performed. According to the experimental results, the present renovation method can significantly enhance the rigidity and reduce the stress levels in bridge girders, connections, and piers, resulting in the extension of the residual service life of such structures. View item