Optimum Design of Castellated Beams Using Four Recently Developed Meta-heuristic Algorithms

The use of castellated beams has received much attention in recent decades. Since these beams have holes in their webs, the bending moment of the cross section increases without increasing the weight of the beam. These beams are also more practical from an architectural point of view, and installations and plumbing can be passed through the holes of these beams that are used in the roof. Therefore, optimization of castellated beams is of great importance due to the increasing use of these beams in the different types of structures like parking lots, industrial buildings and warehouses, office buildings, schools and hospitals. In this study, the optimization of castellated beams with circular and hexagonal holes with cost objective function has been done using four recently developed meta-heuristic algorithms called shuffled shepherd optimization algorithm, improved shuffled-based Jaya, plasma generation optimization and set theoretical-based Jaya algorithm, and the costs for castellated beams with circular and hexagonal holes are compared. Moreover, the results show the good performance of these four new meta-algorithms in optimizing the castellated beams problems.