Ant colony optimization of irregular steel frames including elemental warping effect

Aydogdu I., Saka M. P.

ADVANCES IN ENGINEERING SOFTWARE, vol.44, no.1, pp.150-169, 2012 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 44 Issue: 1
  • Publication Date: 2012
  • Doi Number: 10.1016/j.advengsoft.2011.05.029
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.150-169
  • Keywords: Optimum structural design, Stochastic search techniques, Ant colony optimization, Minimum weight, Steel space frame, Warping effect, OPTIMUM DESIGN, SEARCH
  • Middle East Technical University Affiliated: Yes


The effect of warping in the design of steel space frames having members of thin walled steel sections is significant. In this paper the optimum design problem of steel space frames is formulated according to the provisions of LRFD-AISC (Load and Resistance factor design of American Institute of Steel Construction) in which the effect of warping is also taken into account. Ant colony optimization technique is used to obtain the solution of the design problem. A number of space frame examples are designed by the algorithm developed in order to demonstrate the effect of warping in the optimum design. (C) 2011 Civil-Comp Ltd and Elsevier Ltd. All rights reserved.