OPTIMAL DESIGN OF THE BATTENED BUILT-UP COLUMN OF THE CRANE RUNWAY BEAM

Abstract

This study presents the analysis and the optimal design of the battened built-up column of the crane runway beam. One economic-inspired algorithm, called Supply-Demand-Based Optimization (SDO), was used for the optimization procedure. The objective function is the overall weight of the battened built-up column, which consists of two chords (the cold-formed U-profiles) and batten plates. This research uses all necessary stability and strength criteria (according to Serbian standards) and geometrical recommendations as the constraint functions. The justification for applying this method to the considered problem was confirmed by comparing the results with results from the published research. Achieved savings in the built-up column's weight are between 12,55% and 20,42%, depending on the number of batten plates and type of structural steel.