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The Study on the Placements of Brace Members Using Optimum Seismic Design of Steel Frames  

Kim, Ki-Wook (경북대학교 방재연구소)
Park, Moon-Ho (경북대학교 토목공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.9, no.1, 2005 , pp. 111-119 More about this Journal
Abstract
This study presents continuous and discrete optimum design algorithm and computer programs for unbraced and braced steel frame structures under earthquake loads. The program, which is avaliable to perform structural analysis and optimum design, continuous and discrete, simultaneously is developed. And the program adopts various braced types, Untraced, Z-braced(V), Z-braced(inverse-V), X-braced(A), X-braced(B), X-braced(C) and K-braced, in steel structures with static loads and seismic effects. The objectives in this optimization are to minimize the total weight of steel, and design variables, based on the ultimate strength requirements of AISC-ASD specifications, the serviceability requirements and allowable story drift requirements of ATC-3-06, and various constraints. The purpose is to present proper braced type for seismic effects by comparing and analysing results of various cases.
Keywords
Optimum design; Steel structure; AISC-ASD; ATC-3-06; SUMT;
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