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http://dx.doi.org/10.9712/KASS.2021.21.4.23

Seismic Response Analysis of Twisted Buildings with Three Planar Shapes  

Lee, Da-Hye (Dept. of Architecture, Yeungnam University)
Kim, Hyun-Su (Division of Architecture, Sunmoon University)
Kang, Joo-Won (School of Architecture, Yeungnam University)
Publication Information
Journal of Korean Association for Spatial Structures / v.21, no.4, 2021 , pp. 23-30 More about this Journal
Abstract
In this paper, a twisted shape structure with an elevation form favorable to the resistance of vibration caused by wind loads is selected from among the forms of high-rise buildings. The analytical model is a square, triangular, and hexagonal plane with a plane rotation angle of one degree from 0 to 3 degrees per each story. As a result of the analysis, as the twist angle increased, story drift ratio is increased. Responses with different eccentricity rates were shown by analytical models. Therefore planar shapes designed symmetrically to the horizontal axis of X and Y are considered advantageous for eccentricity and torsion deformation. In the case of the bending moment of the column, the response was amplified in the column supporting the base floor, the roof floor, the floor in which the cross-section of the vertical member changes, and the floor having the same number of nodes as the base floor. Finally, the axial force response of the column is determined to be absolutely affected by the gravity load compared to the lateral load.
Keywords
Atypical structure; High-rise building; Twisted; Planar shape; Twist angle; Seismic response;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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