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Heuristic approach for optimum cost and layout design of 3D reinforced concrete frames / P. Sharafi in Journal of structural engineering, Vol. 138 N° 7 (Juillet 2012) 

Public ISBD [article]  in Journal of structural engineering > Vol. 138 N° 7 (Juillet 2012) . - pp. 853–863 Titre : Heuristic approach for optimum cost and layout design of 3D reinforced concrete frames Type de document : texte imprimé Auteurs : P. Sharafi, Auteur ; Muhammad N. S. Hadi, Auteur ; Teh, Lip H., Auteur Année de publication : 2012 Article en page(s) : pp. 853–863 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Optimization  models  Costs  Frames  Three-dimensional  models  Algorithms Résumé : This paper presents a new methodology for cost optimization of the preliminary layout design of three-dimensional (3D) reinforced concrete (RC) frames. This approach is capable of being easily employed for the optimal layout design of a realistic large RC structure that accounts for constraints imposed by design standards. The new approach considers modeling, structural analysis, concrete member design, and discrete optimization together with data on the cost of systems and materials. The methodology is comprised of two parts. First, using the cross-sectional action effects as design variables, a heuristic cost function is presented as an alternative to traditional cost functions for layout optimization of RC structures. Using the presented cost function, a structural optimization problem is formulated for column layout design of 3D RC frames. Then, an ant system algorithm, a discrete method, is proposed to solve the cost optimization problem. Two comparative design examples are included to demonstrate the performance of the new methodology and the excellent convergence of the ant colony optimization algorithm. ISSN : 0733-9445 En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29ST.1943-541X.0000508 [article] Heuristic approach for optimum cost and layout design of 3D reinforced concrete frames [texte imprimé] / P. Sharafi, Auteur ; Muhammad N. S. Hadi, Auteur ; Teh, Lip H., Auteur . - 2012 . - pp. 853–863. Génie Civil Langues : Anglais (eng) in Journal of structural engineering > Vol. 138 N° 7 (Juillet 2012) . - pp. 853–863 Mots-clés : Optimization  models  Costs  Frames  Three-dimensional  models  Algorithms Résumé : This paper presents a new methodology for cost optimization of the preliminary layout design of three-dimensional (3D) reinforced concrete (RC) frames. This approach is capable of being easily employed for the optimal layout design of a realistic large RC structure that accounts for constraints imposed by design standards. The new approach considers modeling, structural analysis, concrete member design, and discrete optimization together with data on the cost of systems and materials. The methodology is comprised of two parts. First, using the cross-sectional action effects as design variables, a heuristic cost function is presented as an alternative to traditional cost functions for layout optimization of RC structures. Using the presented cost function, a structural optimization problem is formulated for column layout design of 3D RC frames. Then, an ant system algorithm, a discrete method, is proposed to solve the cost optimization problem. Two comparative design examples are included to demonstrate the performance of the new methodology and the excellent convergence of the ant colony optimization algorithm. ISSN : 0733-9445 En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29ST.1943-541X.0000508