Journal of the Architectural Institute of Korea (대한건축학회논문집)

Architectural Institute of Korea (대한건축학회)
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Reinforcement Method of Floor Slabs to Improve Lateral Stiffness of High-rise Offset Outrigger Systems

초고층 오프셋 아웃리거 구조시스템의 수평강성 향상을 위한 슬래브의 보강방법

  • Kim, Hyong-Kee (Dept. of Architectural Engineering, Kangwon National University)
  • Received : 2022.03.05
  • Accepted : 2022.05.04
  • Published : 2022.05.30
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Abstract

This study aims to find a reinforcement method of floor slabs to improve lateral stiffness of offset outrigger systems in high-rise buildings. A structure analysis and design of 70-story buildings utilizing the MIDAS-Gen program were analyzed. The key variables observed were the reinforcement method of floor slabs between shear wall and offset outrigger, the plate thickness of H beam and slab thickness. Based on these results, the lateral displacement reduction ratio and the structural efficiency of the methods reinforcing floor slabs, the axial force in diagonal members of outrigger systems and the maximum principal force distribution of slabs between the shear wall and offset outrigger were analyzed. The research results revealed that the reinforcement method of floor slabs had an impact on the lateral stiffness of the offset outrigger system in tall buildings. These results could be quite valuable in further obtaining important engineering data for the structure design of high-rise offset outrigger systems.

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References

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