Importance and influence of main girder camber of bridge crane

Bridge cranes are widely used in metalworking workshops, assembly workshops, metal mechanism workshops, maintenance workshops, various warehouses and other occasions. They can also be used for auxiliary lifting in metallurgy and foundry workshops. After considering the requirements of wind and rain and improving the design, it can be used in the open air.

The camber of the main girder of the bridge crane is strictly required. It can be seen how heavy the camber of the main girder is for the bridge crane. Similarly, the camber value of the upper beam of the bridge crane is an important technical parameter of the bridge crane, which is directly related To the service life of the bridge crane. Therefore, the detection of the main beam's camber is very important.

In the bridge structure steel, the self-weight of the main girder and the arch degree of the main girder also have a certain influence. According to the manufacturing process of the bridge crane bridge, the main girder, end girder, walking platform, trolley track and living end girder link plate components are combined into the bridge. Through many years of production practice, it is found that the weight of the main girder will inevitably cause the downward deflection when the bridge crane is in the bridge structure, and the downward deflection value caused by the weight of the main girder is different due to the difference in the position of the support. The camber value of the girder is also different. The camber value of the main girder measured at this time is accurate only when the bracket is placed under the centerline of the span at both ends of the bridge, and no correction is required. When the bracket is located in the broken beam of the bridge structure diagram and the actual bridge structure, according to the main beam and end beam assembly welding process requirements, in order to facilitate the insertion of the main beam and the end beam, the two brackets are often placed on the main beam.