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PROCEEDINGS OF THE TWELFTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY
Edited by: B.H.V. Topping and P. Iványi
Design Optimization of Low-Rise Cold-Formed Steel Frames with Thin-Walled Sections using the Artificial Bee Colony Algorithm
S. Carbas1, I. Aydogdu2, T. Tokdemir1 and M.P. Saka3
1Department of Engineering Sciences, Middle East Technical University, Ankara Turkey
S. Carbas, I. Aydogdu, T. Tokdemir, M.P. Saka, "Design Optimization of Low-Rise Cold-Formed Steel Frames with Thin-Walled Sections using the Artificial Bee Colony Algorithm", in B.H.V. Topping, P. Iványi, (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 172, 2014. doi:10.4203/ccp.106.172
Keywords: structural optimization, discrete optimization, cold-formed thin-walled steel frames, metaheuristic techniques, swarm intelligence, artificial bee colony algorithm..
The construction industry is one of the largest contributors to global warming. This indicates the importance of adopting sustainable buildings in order to accommodate the urban population increasing by one million people every week. Sustainable construction aims at reducing the environmental impact of buildings on human health and natural environment by efficiently using energy, resources and reducing waste and pollution. The use of cold-formed steel frames by the construction industry provides sustainable construction which requires less material to carry the same load compared to other materials and reduces the amount of waste material at a site. In this study an optimum design algorithm is developed for cold-formed steel frames made out of thin-walled sections. The design algorithm selects the coldformed thin-walled C-sections listed in AISI-LRFD in such a way that the design constraints specified by the code are satisfied and that the weight of the steel frame is a minimum. This is achieved by making use of the artificial bee colony algorithm which is a recent addition to metaheuristic algorithms. Two cold-formed steel frames are designed by the algorithm presented in order to demonstrate its efficiency.
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