应用预应力张拉器技术修复桥式起重机主梁

Repairing Bridge Crane Gird with Prestressed Tensioner

简要介绍预应力张拉器技术原理及安装结构,并对其在桥式起重机主梁修复应用中的使用效果作了进一步阐述。

This paper gives a brief description of the technical principle and erecting structure of the prestressed tensioner,with the emphasis on the theoretical analysis and virtual effictiveness of the technique in repairing the bridge crane gird.