Goran V. Pavlović
Research Associate
University of Niš, Faculty of Electronic Engineering
Mile M. Savković
Full Professor
University of Kragujevac, Faculty of Mechanical and Civil Engineering in Kraljevo
Nebojša B. Zdravković
Associate Professor
University of Kragujevac, Faculty of Mechanical and Civil Engineering in Kraljevo
Goran Đ. Marković
Associate Professor
University of Kragujevac, Faculty of Mechanical and Civil Engineering in Kraljevo
Marko M. Todorović
Research Assistant
University of Kragujevac, Faculty of Mechanical and Civil Engineering in Kraljevo
Research Associate
University of Niš, Faculty of Electronic Engineering
Mile M. Savković
Full Professor
University of Kragujevac, Faculty of Mechanical and Civil Engineering in Kraljevo
Nebojša B. Zdravković
Associate Professor
University of Kragujevac, Faculty of Mechanical and Civil Engineering in Kraljevo
Goran Đ. Marković
Associate Professor
University of Kragujevac, Faculty of Mechanical and Civil Engineering in Kraljevo
Marko M. Todorović
Research Assistant
University of Kragujevac, Faculty of Mechanical and Civil Engineering in Kraljevo
Low-weight design of a monosymmetric box girder of a double-beam bridge crane with two trolleys
Constructions and Design EngineeringThe paper presents the analysis and the optimization (weight reduction) of the two-trolley double-beam bridge crane box girder by the Lightning Attachment Procedure Optimizer algorithm. The single-objective function workflow uses the geometric properties of the box-like cross-section plates and additional design elements as variables. This multi-criteria optimization uses the maximum stresses in cross-section characteristic points, plate local stability, the stability of longitudinal stiffeners, global girder stability, structure's oscillation dumping time and maximum deflections as the constraint functions. The existing bridge design saw a significant weight reduction of 17.89% for material S355 and 16.90% for material S275. Finally, the features of the chosen algorithm and optimum solution change flow for ten simulations are presented for the best solution achieved for both materials.
