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 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 live end girder link plate components are combined into a 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 beam is also different. Only when the bracket is placed under the centerline of the span at both ends of the bridge, the measured camber value of the main girder at this time is accurate and does not need to be corrected. When the bracket is located in the bridge structure diagram of the broken beam and the actual bridge structure is implemented, according to the main beam and end beam assembly welding process requirements, in order to facilitate the main beam to insert the end beam, the two brackets are often placed on the main beam.
