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

Low-weight design of a monosymmetric box girder of a double-beam bridge crane with two trolleys

Constructions and Design Engineering

The 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.

Host city and venue - Belgrade

Belgrade is the capital and largest city of Serbia and a city of very tumultuous history. Belgrade was the capital of Yugoslavia from 1918 to 1991. It is located at the confluence of the Sava and Danube rivers, where the Pannonian Plain meets the Balkans. It is one of the oldest cities in Europe and since ancient times it has been an important traffic focal point, an intersection of the roads of Eastern and Western Europe. Read more...

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