Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Analytical Study on Seismic Behavior of Precast Concrete Slabs with Different Aspect Ratios

형상비에 따른 프리캐스트 콘크리트 슬래브의 지진 거동에 대한 해석적 연구

  • Lim, Gyu Seok (Department of Architecture Engineering, Inha University) ;
  • Jang, Won Seok (Department of Architecture Engineering, Inha University) ;
  • Jeong, Seong-Hoon (Department of Architecture Engineering, Inha University)
  • 임규석 (인하대학교 건축공학과) ;
  • 장원석 (인하대학교 건축공학과) ;
  • 정성훈 (인하대학교 건축공학과)
  • Received : 2023.10.31
  • Accepted : 2023.12.26
  • Published : 2024.03.01
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Abstract

Due to the recent increase in domestic seismic activity and the proliferation of PC structure buildings, there is a pressing need for a fundamental study to develop and revise the design criteria for Half-PC slabs. In this study, we propose criteria for determining the rigid diaphragm based on the aspect ratio of Half-PC slabs and investigate the structural effects based on the presence of chord element installation. This study concluded that Half-PC slabs with an aspect ratio of 3.0 or lower can be designed as rigid diaphragms. When chord elements are installed, it is possible to design Half-PC slabs with an aspect ratio of 4.0 or lower as rigid diaphragms. In addition, the increase in the aspect ratio of the Half-PC slab leads to a decrease in the in-plane stiffness of the structure, confirming that the reduction effect of the maximum displacement in force direction (𝜟max ) due to the increase in wall stiffness is predominantly influenced by flexibility.

Keywords

Acknowledgement

이 논문은 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구임(RS-2023-00278784).

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