OPTIMAL DESIGN OF STEEL STRUCTURE OF STABLE FOR ADULT COWS WITH NATURAL VENTILATION SYSTEM USING META-HEURISTIC ALGORITHMS

By incorporating structural engineering, animal husbandry, and veterinary, this interdisciplinary research accomplishes the following two main objectives 1) design and optimization to reduce the weight of the steel structure skeleton of the stable with ECBO & CBO algorithms; 2) improving the performance of the natural ventilation system in the stable with some changes in the structurechr('39')s geometric design. In this study, each algorithmchr('39')s performance will be investigated in the course of accomplishing the aforementioned objective. Furthermore, using stress ratios by algorithms in each member will be studied. Finally, using the algorithms, a stable steel structure with lower weight is designed. In this paper, through changing and improving the structurechr('39')s geometric design, a structure more compatible with the natural ventilation systemchr('39')s requirements is designed. These changes are as follows: 1) design of a taller stable structure; 2) larger design of the air inlets in the joint line between the upper part of the side walls and the lower part of the pitched roof.