ABSTRACT
To accommodate the newly local railway plan of Dongfeng located in Guangdong province, China, it is necessary to upgrade the elevation of two ends of a three-span continuous beam bridge in Donfeng interchange viaduct. The relevant bridge is required to change the slope from -0.03% to +1.32% and then be synchronously raised by 1.472 m using the integral lifting method. In this paper, four main stages of construction procedure for this project, preparation stage, slope adjustment stage, integral lifting stage and foundation reconstruction stage, are presented in detail. To verify the capacity of jacks adopted in this project, the reaction results of each jacks calculated by a 3-dimensional finite-element method model are analyzed. The difficulties occurred in the construction and solutions proposed can be obtained to suffer a worthy reference for the similar engineering project.
