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http://dx.doi.org/10.7781/kjoss.2015.27.2.207

Structural Behavior of Steel Brace Strengthened with Non-welded Buckling Restraint Casing  

Kim, Sun Hee (Department of Architectural Engineering, University of Seoul)
Moon, Ji Young (Das Structural Engineering)
Choi, Sung Mo (Department of Architectural Engineering, University of Seoul)
Publication Information
Journal of Korean Society of Steel Construction / v.27, no.2, 2015 , pp. 207-217 More about this Journal
Abstract
A concentrically braced steel frame is a very efficient structural system because it requires relatively smaller amount of materials to resist lateral forces. However, primarily developed as a structural system to resist wind loads based on an assumption that the structure behaves elastically, a concentrically braced frame possibly experiences the deterioration in energy dissipation after brace buckling and the brittle failure of braces and connections when earthquake loads cause inelastic behavior. Consequently, plastic deformation is concentrated in the floor where brace buckling occurs first, which can lead to the rupture of the structure. This study suggests reinforcing H-shaped braces with non-welded cold-formed stiffeners to restrain flexure and buckling and resist tensile force and compressive force equally.
Keywords
Buckling-restrained brace; Non-welded; Cold-formed steel; Compressive load; Finite element method;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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