Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Effect of Stirrup Spacing of Columns and an Additional Wall other than Core Walls on the Seismic Performance of Piloti-type Buildings

코어 외 추가 벽체와 기둥 띠철근 간격이 필로티 건물의 내진성능에 미치는 영향

  • Lee, Soo Jeong (TI Structural Engineers) ;
  • Kim, Taewan (Department of Integrated Energy and Infra system, Kangwon National University)
  • 이수정 (티아이구조기술사사무소) ;
  • 김태완 (강원대학교 에너지인프라 융합학과)
  • Received : 2024.03.06
  • Accepted : 2024.04.19
  • Published : 2024.07.01
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Abstract

For low-rise piloti-type buildings that suffered significant damage in the Pohang earthquake, the seismic performance of those designed by codes issued before and after the earthquake has been recently revised. This study started with the expectation that many of the requirements presented in the current codes may be excessive, and among them, the spacing of column stirrup could be relaxed. In particular, the recently revised design code of concrete structures for buildings, KDS 41 20 00, suggests that the column stirrup spacing is 1/2 of the minimum cross-sectional size or 200 mm, which is strengthened compared to KBC 2016, but relaxed than the current KDS, 41 17 00, which is 1/4 of the minimum size or 150 mm. As a result of the study, it was found that the target performance level was sufficiently satisfied by following the current standards and that it could be satisfied even if the relaxed spacing was followed. Therefore, the strict column stirrup spacing of KDS 41 17 00 could be relaxed if a wall other than core walls is recommended in the current guideline for the structural design of piloti-type buildings.

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References

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