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http://dx.doi.org/10.7734/COSEIK.2018.31.6.293

Analysis of Shear Force in Perimeter Column due to Outrigger Wall in a Tall Building  

Huang, Yi-Tao (Department of Architecture, Konkuk Univ.)
Kim, Han-Soo (Department of Architecture, Konkuk Univ.)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.31, no.6, 2018 , pp. 293-299 More about this Journal
Abstract
Steel truss outriggers can be replaced by reinforced concrete walls to control the lateral drift of tall buildings. When reinforced concrete outrigger walls are connected to perimeter columns, not only axial forces but also shear forces and moments can be induced on the perimeter columns. In this study, the shear force of the perimeter column due to the rotation of the outer edge of the outrigger wall is derived as analytic equations and the result is compared with the finite element analysis result. In the finite element analysis, the effects of connecting beams at each floor and the effect of modeling shear walls and outriggers with beam element and plane stress element was analyzed. The effect of the connecting beam was almost negligible and the plane stress element was determined to have greater stiffness than the beam element. The inter-story rotation and the shear force of the perimeter column due to the rotation of the outer edge of the outrigger wall was considerably smaller than the allowable value. Therefore, even if the outrigger wall made of reinforced concrete is applied to a tall building, it is considered that there is no need to study the shear force and moment induced in the perimeter columns.
Keywords
tall building; outrigger; shear wall; shear force; rotation; perimeter column;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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