DOI QR코드

DOI QR Code

프리캐스트 중간전단벽 시스템이 사용된 콘크리트 산업 시설물의 내진 및 방폭설계

Seismic and Blast Design of Industrial Concrete Structures with Precast Intermediate Shear Wall System

  • 이원준 (충북대학교 건축공학과) ;
  • 김민수 (충북대학교 건축공학과) ;
  • 김선훈 (충북대학교 건축공학과) ;
  • 이득행 (충북대학교 건축공학과 )
  • Lee, Won-Jun (Dept. of Architectural Engineering, Chungbuk National University) ;
  • Kim, Min-Su (Dept. of Architectural Engineering, Chungbuk National University) ;
  • Kim, Seon-hoon (Dept. of Architectural Engineering, Chungbuk National University) ;
  • Lee, Deuckhang (Dept. of Architectural Engineering, Chungbuk National University)
  • 투고 : 2023.11.06
  • 심사 : 2023.11.28
  • 발행 : 2024.03.01

초록

Code-compliant seismic design should be essentially applied to realize the so-called emulative performance of precast concrete (PC) lateral force-resisting systems, and this study developed simple procedures to design precast industrial buildings with intermediate precast bearing wall systems considering both the effect of seismic and blast loads. Seismic design provisions specified in ACI 318 and ASCE 7 can be directly adopted, for which the so-called 1.5Sy condition is addressed in PC wall-to-wall and wall-to-base connections. Various coupling options were considered and addressed in the seismic design of wall-to-wall connections for the longitudinal and transverse design directions to secure optimized performance and better economic feasibility. On the other hand, two possible methods were adopted in blast analysis: 1) Equivalent static analysis (ESA) based on the simplified graphic method and 2) Incremental dynamic time-history analysis (IDTHA). The ESA is physically austere to use in practice for a typical industrial PC-bearing wall system. Still, it showed an overestimating trend in terms of the lateral deformation. The coupling action between precast wall segments appears to be inevitably required due to substantially large blast loads compared to seismic loads with increasing blast risk levels. Even with the coupled-precast shear walls, the design outcome obtained from the ESA method might not be entirely satisfactory to the drift criteria presented by the ASCE Blast Design Manual. This drawback can be overcome by addressing the IDTHA method, where all the design criteria were fully satisfied with precast shear walls' non-coupling and group-coupling strength, where each individual or grouped shear fence was designed to possess 1.5Sy for the seismic design.

키워드

과제정보

이 성과는 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구임(No. RS-2023-00209647).

참고문헌

  1. ACI Committee 318. Building Code Requirements for Structural Concrete (ACI 318-19) and Commentary (ACI 318R-19). Farmington Hills, MI: American Concrete Institute; c2019. 624 p.
  2. American Society of Civil Engineers. Minimum Design Loads for Buildings and Other Structures (ASCE/SEI 7-22). Reston, VA: American Society of Civil Engineers; c2022. 479 p.
  3. ASCE Task Committee on Updating Manual 42 of the Committee on Dynamic Effects of the Structural Division. Design of Structures to Resist Nuclear Weapons Effects. Reston, VA: American Society of Civil Engineers; c1985. 42 p.
  4. Paz M. Structural Dynamics: Theory and Computation, third edition. New York, NY: M. Paz, Van Nostrand Reinhold Inc.; c1991. 626 p.
  5. Paz M. Microcomputer-Aided Engineering: Structural Dynamics. New York, NY: M. Paz, Van Nostrand Reinhold Company; c1986. 321 p.