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http://dx.doi.org/10.5762/KAIS.2016.17.10.743

Design Strength of Coupled Shear Wall System according to Variation of Strength and Stiffness of Coupled Shear Wall  

Yoon, Tae-Ho (School of Architecture, Changwon National University)
Kim, Jin-Sang (Department of Architecture, Inje University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.17, no.10, 2016 , pp. 743-750 More about this Journal
Abstract
In this research, the effects of the strength and stiffness of shear walls on the design strength of coupling beams are studied in the shear wall-coupling beam structural system widely used as the lateral-drift resistant system of high-rise buildings. The results show that the design strength of the coupling beams decreases with decreasing concrete strength and core wall thickness, but the shape remains unchanged. In all six models, the design strength of the coupling beams has the largest value at the 10~15th floors in a 40-story building. In other words, the design strength of the coupling beams has the largest value at 0.25H~0.375H where the inflection point exists. The thicker the walls, the smaller the change in the member forces. The thickness of the coupled shear walls has more influence on the design strength of the coupling beams than the concrete strength.
Keywords
Concrete strength; coupling beam; lateral drift; shear wall; stiffness reduction; wall thickness;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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