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Cyclic Local Buckling Behavior of Steel Members with Web Opening  

Lee, EunTaik (중앙대학교 건축학과)
Ko, KaYeon (중앙대학교 대학원)
Kang, JaeHoon (중앙대학교 건축학과)
Chang, KyoungHo (중앙대학교 건설환경공학과)
Publication Information
Journal of Korean Society of Steel Construction / v.15, no.4, 2003 , pp. 423-433 More about this Journal
Abstract
Many study have been performed to describe the elastic and inelastic behavior of H-shaped beams with web openings that generally concentrated on the monotonic loading condition and concentric web opening. The findings of the studies led Darwin to propose formulas for the design of beams with web openings considering local buckling. While the formulas are simple and useful in real situation, more studies arc needed on their cyclic loading condition. In this experimental study, 12 H-shaped beams with web openings under cyclic loading condition were investigated. The dimension criteria based on the formulas proposed by Darwin were examined. The suitability of existing design formulas and the effects of plastic hinges on beams with web openings and of local buckling around web openings on the beam strength under cyclic loading were also studied. This was done by observing their behavior with various dimensional openings, eccentric per cent, and stiffeners.
Keywords
web opening; eccentric; inelastic behavior; cyclic loading; local buckling; strength deterioration; stiffness deterioration; dissipated energy; ductility;
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