摘要
结合工程实例,对大跨径变宽连续箱梁桥顶升改造总体设计进行介绍,阐述采用PLC液压同步技术对桥梁进行顶升改造措施,并着重分析了设计与施工过程的重点、难点。
Based on engineering examples, this article introduces the Jacking - up overall design of long - span widened continuous box girder, explains how to use PLC hydraulic synchronization technique to early out the bridge jacking - up reconstruction, and mainly analyzes the critical technical problems in design and construction.
关键词
顶升
变宽连续箱梁
PLC液压同步技术
施工
jack - up
broaden continuous beam
PLC hydraulic synchronization technique
construction
