Abstract:Rubber bearings, as an important force transmission device for bridges, are erected on piers and abutments, supporting the upper structure of the bridge, and are an important structural component connecting the upper and lower parts of the bridge. However, due to the increase in the service life of the bridge, the impact of the field environment, the increase in traffic flow, lack of maintenance over the years, and aging of the bearings, a series of problems such as cracking, deformation, hollowing out, and displacement have occurred in the bridge bearings, and they have gradually lost their use function. The relevant technology and construction for replacing bearings have emerged as a result. Based on the analysis and practical experience of replacing bearings in the Qingquansi Jialing River Grand Bridge project in Nanchong, Sichuan, this paper discusses the construction technology method of synchronous jacking replacement of bearings for reference in similar situations.