Optimum design of high-rise steel buildings using an evolution strategy integrated parallel algorithm

Authors:
O. HasançEbi;T. BahçEcioğLu;Ö. Kurç;M. P. Saka
Affiliations:
Department of Civil Engineering, Middle East Technical University, Ankara, Turkey;Department of Civil Engineering, Middle East Technical University, Ankara, Turkey;Department of Civil Engineering, Middle East Technical University, Ankara, Turkey;Department of Civil Engineering, University of Bahrain, Isa Town, Bahrain
Venue:
Computers and Structures
Year:
2011

Citing 4
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Abstract

The present study addresses a parallel solution algorithm for optimum design of large steel space frame structures, in particular high-rise steel buildings. The algorithm implements a novel discrete evolution strategy optimization method to effectively size these systems for minimum weight according to the provisions of ASD-AISC specification and various practical aspects of design process. The multitasking environment in the algorithm rests on a master-slave model based parallelization of the optimization procedure, which provides an ideal platform for attaining optimal solutions in a timely manner without losing accuracy in computations. Three design examples from the category of high-rise steel buildings are studied extensively to demonstrate cost-efficiency of the algorithm in conjunction with a cluster of computers with 32 processors. The variation in performance of the parallel computing system with respect to the number of processors employed is also scrutinized in each design example.