DOI QR코드

DOI QR Code

Optimizing Outrigger Placement in High-rise Buildings with Vertical Two-Outrigger System

건물의 높이방향으로 2개소에 아웃리거 구조시스템이 설치된 초고층 건물의 아웃리거 최적위치

  • Received : 2024.01.08
  • Accepted : 2024.04.09
  • Published : 2024.05.30

Abstract

This research aims to propose the best placement for outriggers in tall buildings equipped with a two-outrigger system along the building's height direction. To achieve this, a schematic structural design was conducted on a 75-story building. Key factors considered include outrigger stiffness, frame stiffness, shear wall stiffness, outrigger positioning in height, and spacing between upper and lower outriggers. The analysis considered the lateral displacement at the top floor and examined how frame stiffness influences the optimal placement of two outriggers. Previous studies on this topic were also reviewed. This study introduces a more accurate and reasonable method for calculating optimal outrigger positions compared to existing approaches. Additionally, these findings are expected to contribute valuable insights into the optimum location of two outriggers in high-rise buildings.

Keywords

References

  1. Kim, H. (2014). Investigation of Optimal Location for Two-Outrigger System in High-rise Building, Journal of the Architectural Institute of Korea, 30(6), 3-10. https://doi.org/10.5659/JAIK_SC.2014.30.6.3
  2. Kim, H. (2019). Proposal for Optimal Outrigger Location Considering Stiffness of Frame, Journal of the Architectural Institute of Korea, 35(9), 183-190.
  3. Kim, H. (2020). Proposal for Optimal Core Outrigger Position Reflecting Lateral Stiffness of Rigid Frame, Journal of the Architectural Institute of Korea, 36(8), 137-144.
  4. Kim, J., & Park, Y. (2003). The Structural Design of High-rise Building, International Seminar of Tall Buildings and Urban Habitat, Architectural Institute of Korea, 64-74.
  5. McNabb, J., & Muvdi, B. (1975). Drift Reduction Factors for Belt High-rise Structures, Engineering Journal, American Institute of Steel Construction, 3rd Quarter.
  6. Midas IT. (2023). Gen 2023 On-line Manual(General Structure Design System).
  7. Ministry of Land, Infrastructure and Transport. (2022). Korean Design Standard.
  8. Seo, H. (1999). A Study on the Improvement of Torsional Response of High-rise Building Structure, A Dissertation for the Degree of Doctor of Philosophy, Sungkyunkwan University.
  9. Smith, B., & Salim, I. (1981). Parameter Study of Outrigger-braced Tall Building Structures, Proceedings of the American Society of Civil Engineers, 107(10), 2001-2014.
  10. Smith, B., & Salim, I. (1983). Formulae for Optimum Drift Resistance of Outrigger Braced Tall Building Structures, Computers & Structures, 17(1), 45-50. https://doi.org/10.1016/0045-7949(83)90027-5
  11. Taranath, B. (1975). Optimum Belt Truss Location for High-rise Structures, Structural Engineer, 53(8), 345-347.