桥梁支座更换设计

对目前国内广泛使用的更换支座的方法进行了分析总结,在内蒙古大广高速赤峰至茅荆坝(蒙冀界)段公路工程中采用了一种安全可靠、省时省力的支座更换方法 -同步顶升系统;对该法的设计、作用原理进行了阐述,并介绍了其施工过程,为更换桥梁支座提供参考。

Replacement Design for Bridge Support

The widely-used methods at home for replacing support at present are analyzed and summarized.In highway project of Chifeng-Maojing Dam(boundary of Inner Mongolia and Hebei) of Daguang Expressway,a kind of safe,reliable and time-saving method for replacing support-synchronization lifting system is adopted.The design and action principle of this method is elaborated and the construction process is introduced,thus providing references for replacement of bridge support.