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Optimum cost design of frames using genetic algorithms
Chulin Chen,Salim Taib Yousif,Rabi’ Muyad Najem,Ali Abavisani,Binh Thai Pham,Karzan Wakil,Edy Tonnizam Mohamad,Majid Khorami 국제구조공학회 2019 Steel and Composite Structures, An International J Vol.30 No.3
The optimum cost of a reinforced concrete plane and space frames have been found by using the Genetic Algorithm (GA) method. The design procedure is subjected to many constraints controlling the designed sections (beams and columns) based on the standard specifications of the American Concrete Institute ACI Code 2011. The design variables have contained the dimensions of designed sections, reinforced steel and topology through the section. It is obtained from a predetermined database containing all the single reinforced design sections for beam and columns subjected to axial load, uniaxial or biaxial moments. The designed optimum beam sections by using GAs have been unified through MATLAB to satisfy axial, flexural, shear and torsion requirements based on the designed code. The frames’ functional cost has contained the cost of concrete and reinforcement of steel in addition to the cost of the frames’ formwork. The results have found that limiting the dimensions of the frame’s beams with the frame’s columns have increased the optimum cost of the structure by 2%, declining the re-analysis of the optimum designed structures through GA.
Behavior of steel storage pallet racking connection - A review
Chulin Chen,Lei Shi,Mahdi Shariati,Ali Toghroli,Edy Tonnizam Mohamad,Dieu Tien Bui,Majid Khorami 국제구조공학회 2019 Steel and Composite Structures, An International J Vol.30 No.5
Steel pallet racking industry has globally used from the industrial revolution and has deeply evolved from hot-rolled profile into cold-formed profile to raise the optimization in engineering field. Nowadays, some studies regarding cold-formed steel profile have been performed, but fewer studies in terms of cold-formed pallet racking specifically in connection due to the semi-rigid behavior by lug-hooked into the upright have been conducted. The objective of this study is to review the related literature on steel storage racking connection behavior.