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Self-Optimizing Structural Design of a Pre-engineered Building System with Nonprismatic Members based on AISC2005  

Kim, Yong Seok (국립목포대학교 건축공학전공)
Oh, Myoung Ho (국립목포대학교 건축공학전공)
Song, Byung Kyu ((주)민영엔지니어링건축사사무소)
Publication Information
Journal of Korean Society of Steel Construction / v.21, no.2, 2009 , pp. 193-201 More about this Journal
Abstract
Structural design of most nonprismatic Pre-Engineered Building Systems (PEBS) is performed using optimizing software developed in foreign countries. In this study, a structural optimizing software for the design of 3-D structures of nonprismatic PEBS is developed according to the allowable stress design method of AISC2005 and KBC. Optimizing structural design with nonprismatic members is carried out by repeating the process of structural analysis and member design to minimize the weight of a structure. According to the optimizing design results of 2-D and 3-D structures with nonprismatic members, there are considerable steel savings in designing structures with nonprismatic H-shaped built-up sections rather than with H-shaped rolled sections. When H-shaped built-up sections were used, the weight of the structural steel was reduced when AISC2005 specification rather than AISC1898 was used in the design. It is therefore concluded that utilizing the new AISC2005 specification is safer in preventingweb buckling because the height of a member is designed to be small despite some differences depending on the structural type.
Keywords
PEBS; optimizing software; allowable stress design; nonprismatic member; AISC2005 specification;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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