Optimal Design for the Welded Girder of the Crane Runway Beam

Abstract

In this research, multicriteria analysis and optimization of the steel girder of the crane runway were performed. Application of the welded I girder with vertical stiffeners was observed, in comparison with the standard rolled I profile which is most often using for these types of steel structures. The goal was primarily to show savings in the material in applying this design approach. For this reason, the minimization of the mass of the welded girder is set as the objective function. The strength criterion for characteristic points of the girder, local and global stability, the strength criterion for welded joints, as well as the stiffness of the girder, are set as optimization criteria. The optimization procedure was carried out using the Cyclical Parthenogenesis Algorithm (CPA), on the example of one segment of the crane runway track, for one single-beam bridge crane that is in exploitation. In this way, significant savings in the material were achieved, which justifies the presented method of analysis in the design of these types of structures.