In view of old bridge bearing needed to be replaced,the paper expounds how to research and develop intelligent automation engineering equipment for bridge s synchronous jacking up.

Research on the PLC Control System of the Hydraulic Synchronous Lift System and the Auto Peeling Machine;

Applying a synchronous integral hoisting technology for Xinguang Bridge s main arch installation;

This article concretely describes the scheme design of integral lifting for the arch steel roof in Macau new inspection station,and the key technical problems are also outlined and analyzed,subsequently,the corresponding measures taken to solve these problems are proposed.

In the assembling process of the constructions of wide span and large space,hydraulic synchronizing integral lifting technology has been used more and more widely,and it is a vital subject to improve the reliability.