Research and Application of an Electro-hydraulic Synchronous Control System for Bridge Lifting

作     者：ZHANG Cheng-pu XIAO Ju-liang 

作者机构：School of Mechanical Engineering Tianjin University Tianjin 300072 China 

出 版 物：《International Journal of Plant Engineering and Management》 (国际设备工程与管理（英文版）)

年 卷 期：2009年第14卷第1期

页      面：1-7页

学科分类：0821[工学-纺织科学与工程] 08[工学] 0835[工学-软件工程] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 082103[工学-纺织化学与染整工程] 

基　　金：supported by the Ph.D. Programs Foundation of Ministry of Education of China under Grant No. 20070056010 Tianjin Municipal Natural Science Foundation under Grant No.07JCZBJC09900 Tianjin key technology research for majorproject under Contract No.05ZHGCGX00500 

主　　题：synchronous lifting of a bridge multi-cylinder synchronization distributed control system 

摘      要：With the increase of bridge reconstruction schemes, synchronous lifting of a bridge is more and more widely used. In order to solve the problems associated with the synchronoas lifting of a bridge, a multi-cylinder synchronous lifting power and monitoring system has been developed. This is a distributed control system, which is com- posed of an industrial computer workstation, a programmable logical controller and a hydraulic control system. The system can achieve distributed control and centralized operation of actuators, and centralized management of infor- mation. It not only can implement multi-cylinder synchronous lifting with an unbalanced load, but also can moni- tor the pressure, displacement and stress at each lifting point. The performance of the multi-cylinder synchronous system is verified through its application to several bridge lifting engineering projects. The details of such a project are given.