Title of article :
Layout Optimization for X bracing of Planar Steel Frames Using Ant System
Author/Authors :
Kaveh، A. نويسنده Centre of Excellence for Fundamental Studies in Structural Engineering,Department of Civil Engineering,Iran University of Science and Technology,Tehan,Iran , , Farhoodi، N. نويسنده Building and Housing Research Centre,Tehan,Iran ,
Issue Information :
فصلنامه با شماره پیاپی 28 سال 2010
Abstract :
In this paper, the problem of layout optimization for X bracing of steel frames is studied using the ant system (AS). A new design method is employed to share the gravity and the lateral loads between the main frame and the bracings according to the requirements of the IBC2006 code. An algorithm is developed which is called optimum steel designer (OSD). An optimization method based on an approximate analysis is also developed for layout optimization of braced frames. This method is called the approximate optimum steel designer (AOSD) and uses a simple deterministic optimization algorithm leading to the optimum patterns and it is much faster than the OSD. Several numerical exles are treated by the proposed methods. Efficiency and accuracy of the methods are then discussed. A comparison is also made with Genetic algorithm for one of the frames.
Keywords :
Structural layout optimization , Ant Colony Optimization , Approximate Analysis , Steel braced frames
Journal title :
International JOurnal of Civil Engineering(Transaction A: Civil Engineering)
Journal title :
International JOurnal of Civil Engineering(Transaction A: Civil Engineering)
