Bridge crane main girder deflection detection and correction methods I. Bridge (gantry) crane main girder deflection detection in the bridge (gantry) crane safety inspection, the main girder arch detection is a very important content. jb1036-82 (general bridge...

The main girder structure of overhead travelling crane will be deformed by various factors in the process of long-term application, and the deformation problem can not be completely avoided, for the deformation of the main girder structure.

January 1998 · Issue 1: Methods for Correcting Downward Deflection of the Main Girder of a Metallurgical Bridge Crane in Hunan Zheng Jinxian, Xiangtan Iron and Steel Company Abstract: The downward deflection of a bridge crane’s main girder is corrected using the principles of flame straightening. The correction process is as follows: First, an H-shaped support is spot-welded at the midpoint of the main girder; then, a hydraulic press is placed on the H-shaped support

1. The present invention relates to the field of lifting equipment installation, and more specifically to a rapid installation device and method for the conductor rail of a bridge crane. Background: 2. A bridge crane is a type of crane in which the girder runs on elevated rails; it is also known as an overhead crane. 3