通用桥式起重机主梁自重对拱度的影响及修正

通用桥式起重机主梁上拱度是起重机的重要技术指标,因此生产检测中所测的拱度值必须保证是准确可靠的。而在进行起重机桥架结构时,由于各种条件的限制,支架位置常常处于0.8倍跨度处,此时主梁自重对主梁拱度产生的影响值会有偏差,造成测得的主梁上拱度值是不准确的,因此需要对该值进行修正。通过生产实践总结和理论计算相结合,可准确得出支架位置在0.8倍跨度处主梁自重对主梁上拱度的影响修正值,此时测得的拱度值再减去修正值后就是准确的拱度值。

The influence of the dead weight of the main girder of general type bridge crane on camber and the modification

The camber of the main girder of general type bridge crane is the important technical index of the crane,so the camber measured in production test must be guaranteed to be accurate and reliable.However,in the process of constructing crane,due to various limitations,stens are often in the position of 0.8 times span,and at this moment the influence of the dead weight of the main girder on the camber of it will have deviation,which make the measured camber value is not accurate,so it is need to fix the value.T...