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Optimum Design of Plane Steel Frames Using Second-Order Inelastic Analysis and Section Increment Method  

Choi, Se-Hyu (경북대학교 건축토목공학부)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.12, no.5, 2008 , pp. 143-151 More about this Journal
Abstract
In this paper, the optimum design of plane steel frames using second-order inelastic analysis and section increment method is presented. Since the second-order inelastic analysis accounts for geometric and material nonlinearities of the whole system as well as its component members, the design method based on second-order inelastic analysis does not require separate member capacity checks after analysis. A section increment method proposed by this paper is used as optimization technique. The weight of structures is treated as the objective function. The constraint functions are defined by load-carrying capacities, deflections, inter-story drifts, and ductility requirement. The effectiveness of the proposed method are verified by comparing the results of the proposed method with those of other method.
Keywords
Optimum design; Second-order inelastic analysis; Section increment method;
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