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http://dx.doi.org/10.7734/COSEIK.2022.35.1.35

The Effects of Differential Axial Shortening on RC High-rise Buildings with Outrigger or Mega Structure Systems  

Kim, Gyeong-Chan (Department of Architectural Engineering, Kwangwoon University)
Kim, Jae-Yo (Department of Architectural Engineering, Kwangwoon University)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.35, no.1, 2022 , pp. 35-44 More about this Journal
Abstract
It is essential to control the lateral displacement and differential axial shortening of the vertical elements in high-rise buildings. Recently, an outrigger or a mega structure system has been adopted to control the lateral displacement. Furthermore, to resolve the problems caused by differential axial shortening in high-rise buildings, analytical prediction and correction is often studied; however, the study on the comparisons of the lateral load resisting systems to address differential axial shortening is less. Therefore, in this paper, a 60-story RC residential building using an outrigger or a mega structure system is analyzed with a construction sequence. Moreover, differential axial shortening can result in an additional member force of structural members and failure of non-structural members. These problems caused by differential axial shortening affects the behaviors and can damage the important structure member in the high-rise buildings. Hence, the effects of the systems on differential axial shortening between the vertical elements in high-rise buildings are studied.
Keywords
outrigger; mega structure; column shortening; construction sequence analysis; high-rise building;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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