DOI QR코드

DOI QR Code

형상비에 따른 프리캐스트 콘크리트 슬래브의 지진 거동에 대한 해석적 연구

Analytical Study on Seismic Behavior of Precast Concrete Slabs with Different Aspect Ratios

  • 임규석 (인하대학교 건축공학과) ;
  • 장원석 (인하대학교 건축공학과) ;
  • 정성훈 (인하대학교 건축공학과)
  • 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)
  • 투고 : 2023.10.31
  • 심사 : 2023.12.26
  • 발행 : 2024.03.01

초록

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.

키워드

과제정보

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

참고문헌

  1. Ministry of Public Safety and Security. 9.12 Earthquake White Paper. Ministry of Public Safety and Security; c2017.
  2. Ministry of the Interior and Safety. Pohang earthquake damage recoverty cost of 144.5 billion won confirmed. Ministry of the Interior and Safety [Internet]. 2017 Dec 06 [cited 2023 Oct 26]. Available from: https://www.mois.go.kr/frt/bbs/type010/commonSelectBoardArticle.do?bbsId=BBSMSTR_000000000008&nttId=60882#none
  3. Yun GC. Architectural PC market size: 1.4 trillion won... "Rapid growth in the future due to factors such as logistics facilities". Maeil Construction Newspaper [Internet]. 2023 Feb 21 [cited 2023 Oct 26]. Available from: http://www.mcnews.co.kr/78029
  4. Precast/Prestressed Concrete Institute. PCI design handbook : precast and prestressed concrete(8). PCI; c2017.
  5. Farrow KT, Fleischman RB. Effect of Dimension and Detail on the Capacity of Precast Concrete Parking Structure Diaphragms. PCI Journal. 2003 Sep;48(5):46-61. https://doi.org/10.15554/pcij.09012003.46.61
  6. Fleischman RB, Naito CJ, Restrepo J, Sause R, Ghosh SK. Seismic Design Methodology for Precast Concrete Diaphragms Part1: Desgin Framework. PCI Journal. 2005 Sep;50(5):68-83. https://doi.org/10.15554/pcij.09012005.68.83
  7. Wan G, Zhang D, Fleischman RB, Naito CJ. A coupled connector element for nonlinear static pushover analysis of precast concrete diaphragms. Engineering Structures. 2015 Mar;86:58-71. https://doi.org/10.1016/j.engstruct.2014.12.029
  8. Concrete Reinforcing Steel Institute. Design Guide for Reinforced Concrete Diaphragms. CRSI; c2019.
  9. American Society of Civil Engineers. Minimum Design Loads and Associated Criteria for Buildings and Other Structures. ASCE/SEI;c2022.
  10. Ministry of Land, Infrastructure and Transport. Seismic Building Design Code KDS 41 17 00 : 2022. Ministry of Land, Infrastructure and Transport; c2022.
  11. Fleischman RB, Ghosh SK, Naito CJ, Wan G, Restrepo J, Schoettler M, Sause R, Cao L. Seismic Design Methodology for Precast Concrete Diaphragms Part2: Research Program. PCI Journal. 2005 Nov;50(6):14-31. https://doi.org/10.15554/pcij.11012005.14.31
  12. Fleischman RB, Wan G. Appropriate Overstrength of Shear Reinforcement in Precast Concrete Diaphragms. Journal of Structural Engineering. 2007 Nov;133(11):1616-1626. https://doi.org/10.1061/(ASCE)0733-9445(2007)133:11(1616)
  13. Popovics S. A numerical approach to the complete stress-strain curve of concrete. Cement and Concrete Research. 1973;3(5):583-599. https://doi.org/10.1016/0008-8846(73)90096-3
  14. Mander JB. Seismic Design of Bridge Piers [Doctorate]. [Nwe Zealand]: University of Canterbury; c1983. 503 p.
  15. Ministry of Land, Infrastructure and Transport. Existing Facility (Building) Seismic Performance Evaluation Guidelines. Korea Authority of Land & Infrastructure Safety; c2021.
  16. Wan G, Fleischman RB, Zhang D. Effect of Spandrel Beam to Double Tee Connection Characteristic on Flexure-Controlled Precast Diaphragms. Journal of Structural Engineering. 2012 Apr;138(2):247-257. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000426
  17. European Committee for Standardization. Eurocode 2: design of concrete structures. General rules and rules for buildings; c1992.
  18. Mohamad ME, Ibrahim IS, Abdullah R, Rahman ABA, Kueh ABH, Usman J. Friction and cohesion coefficients of composite concreteto- concrete bond. Cement and Concrete Research. 2015 Feb;56:1-14. https://doi.org/10.1016/j.cemconcomp.2014.10.003
  19. Moehle JP, Hooper JD, Kelly DJ, Meyer TR. Seismic Design of Cast-in-Place Concrete Diaphragms, Chords, and Collectors. National Institute of Standards and Technology; c2010.