한국지진공학회논문집 (Journal of the Earthquake Engineering Society of Korea)

  • 제28권6호
  • /
  • Pages.355-364
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  • 2024
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  • 1226-525X(pISSN)
  • /
  • 2234-1099(eISSN)
한국지진공학회 (Earthquake Engineering Society of Korea)
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유한요소해석에 기반한 국내 고층아파트 T형 벽체의 횡보강 영역 산정방법의 적합성 평가

Suitability Evaluation of Design Methods for Lateral Confinement Region of T-Shaped Walls Based on Finite Element Analysis

  • Yun, Seong Jun (School of Architecture, Soongsil University) ;
  • Kim, Sung Hyun (School of Architecture, Soongsil University) ;
  • Kang, Su Min (School of Architecture, Soongsil University) ;
  • Lee, Deuckhang (Department of Architectural Engineering, Chungbuk National University) ;
  • Lee, Wonjun (Department of Architectural Engineering, Chungbuk National University)
  • 투고 : 2024.08.28
  • 심사 : 2024.10.04
  • 발행 : 2024.11.01
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초록

Recently, high-rise residential buildings in Korea have adopted slender shear walls with irregular section shapes, such as T-shape, H-shape, and C-shape. In the seismic design of the slender shear walls, the transverse reinforcement for lateral confinement should be provided in the boundary elements to increase deformation capacity and subsequent ductility. However, in practice, the irregularity of the shear walls is not adequately considered, and the lateral confinement region is calculated for the rectangular wall segments. This study investigated the proper design method for lateral confinement regions using finite element analysis. The lateral confinement region was considered in analysis for two cases: 1) as a typical rectangular wall segment and 2) as an irregular wall. When the irregularity of the walls was considered, the compression zone depth was increased because the vertical reinforcement in the flange was addressed. The effect of lateral confinement design methods on the structural performance of the walls was directly compared under various design parameters, including the length of the flange, concrete compressive strength, vertical rebar layout, axial load ratio, and loading direction. According to the results of the parametric analysis, the peak strength and deformation capacity could be significantly increased when the lateral confinement region was calculated based on irregularly shaped walls, regardless of the design parameters. In addition, the effective compression zone was located within the lateral confinement region. Thus, it is recommended that the lateral confinement region of T-shaped walls is calculated by addressing the irregularity of the walls.

키워드

과제정보

본 연구는 한국과학재단이 주관하는 중견연구자지원사업(No. 2021R1A2C1012314)의 지원을 받아 수행되었습니다

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