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Optimum Design of Truss Structures with Pretension Considering Bucking Constraint  

Kim, Yeon-Tae (세종대학교 대학원 건축공학과)
Kim, Dae-Hwan (세종대학교 대학원 건축공학과)
Lee, Jae-Hong (세종대학교 건축공학과)
Publication Information
Journal of Korean Society of Steel Construction / v.22, no.2, 2010 , pp. 197-208 More about this Journal
Abstract
An under-tension system is frequently employed for large-span structures to reduce the deflection and member size. In this study, a microgenetic algorithm was used to find the optimum cross-section of truss structures with an undertension cable under transverse loading. Maximum deflection, allowable stress, and buckling were considered constraints. The proposed approach was verified using a 10-bar truss sample that shows good agreement with the previous results. In the numerical results, minimum-weight design of the under-tension structure was performed for various magnitudes of pretension.
Keywords
under-tension system; optimum design; micro-genetic algorithm; truss;
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Times Cited By KSCI : 3  (Citation Analysis)
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