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Automatic Design of Steel Frame Using Nonlinear Analysis  

Kim, Chang Sung (세종대학교 토목환경공학과/건설기술연구소)
Ma, Sang Soo (세종대학교 토목환경공학과/건설기술연구소)
Choi, Se Hyu (건설기술연구소)
Kim, Seung Eock (세종대학교 토목환경공학과/건설기술연구소)
Publication Information
Journal of Korean Society of Steel Construction / v.14, no.2, 2002 , pp. 339-348 More about this Journal
Abstract
The study developed an automatic design method of steel frames which uses nonlinear analysis. The geometric nonlinearity was considered using stability functions. Likewise, the transverse shear deformation effect in a beam-column was explained. A direct search method was used as an automatic design technique. The unit value of each part was evaluated using LRFD interaction equation. The member with the largest unit value was replaced one by one with an adjacent larger member selected from the database. The weight of the steel frame was considered as an objective function. On the other hand, load-carrying capacities, deflections, inter-story drifts, and ductility requirement were used as constraint functions. Case studies of a two-dimensional and a three-dimensional two-story frames were presented.
Keywords
nonlinear analysis; direct search method; automatic design; steel frames;
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