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Design Optimization of a RC Building Structure using an Approximate Optimization Technique  

Park, Chang-Hyun (한양대학교 대학원 기계공학과)
Ahn, Hee-Jae (한양대학교 대학원 기계공학과)
Choi, Dong-Hoon (한양대학교 기계공학부)
Jung, Cheul-Kyu ((주)일맥구조엔지니어링/연구소)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.24, no.2, 2011 , pp. 223-233 More about this Journal
Abstract
A design optimization problem was formulated to minimize the volume of an RC building structure while satisfying design constraints on structural displacements under vertical, wind and seismic loads. We employed metamodel-based design optimization using design of experiments, metamodeling and optimization algorithm to circumvent the difficulty of the automation of structural analysis procedure. Especially, we proposed a design approach of repetitive design optimizations by stages with changing the side constraint values on design variables and limit values on design constraints until a satisfactory design result was obtained. Using the proposed design approach, the volume of the RC building structure has been reduced by 53.3 % compared to the initial one while satisfying all the design constraints. This design result clearly shows the validity of the proposed design approach.
Keywords
RC building; vertical load; wind load; seismic load; structural analysis; design of experiments; meta-model; design optimization;
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Times Cited By KSCI : 2  (Citation Analysis)
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