International Journal of Concrete Structures and Materials

  • 제9권4호
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  • Pages.439-451
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  • 2015
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  • 1976-0485(pISSN)
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  • 2234-1315(eISSN)
한국콘크리트학회 (Korea Concrete Institute)
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Effects of Isolation Period Difference and Beam-Column Stiffness Ratio on the Dynamic Response of Reinforced Concrete Buildings

  • Chun, Young-Soo (Land and Housing Institute, Korea Land & Housing Corporation) ;
  • Hur, Moo-Won (Department of Architectural Engineering, Dankook University)
  • 투고 : 2015.01.21
  • 심사 : 2015.11.12
  • 발행 : 2015.12.31
⟨ 이전 논문 다음 논문 ⟩

초록

This study analyzed the isolation effect for a 15-story reinforced concrete (RC) building with regard to changes in the beam-column stiffness ratio and the difference in the vibration period between the superstructure and an isolation layer in order to provide basic data that are needed to devise a framework for the design of isolated RC buildings. First, this analytical study proposes to design RC building frames by securing an isolation period that is at least 2.5 times longer than the natural vibration period of a superstructure and configuring a target isolation period that is 3.0 s or longer. To verify the proposed plan, shaking table tests were conducted on a scaled-down model of 15-story RC building installed with laminated rubber bearings. The experimental results indicate that the tested isolated structure, which complied with the proposed conditions, exhibited an almost constant response distribution, verifying that the behavior of the structure improved in terms of usability. The RC building's response to inter-story drift (which causes structural damage) was reduced by about one-third that of a non-isolated structure, thereby confirming that the safety of such a superstructure can be achieved through the building's improved seismic performance.

키워드

과제정보

연구 과제 주관 기관 : Land and Housing Institute

참고문헌

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피인용 문헌

  1. Optimum Proportion of Masonry Chip Aggregate for Internally Cured Concrete vol.11, pp.3, 2015, https://doi.org/10.1007/s40069-017-0196-5
  2. Effects of the isolation parameters on the seismic response of steel frames vol.15, pp.3, 2015, https://doi.org/10.12989/eas.2018.15.3.319
  3. Effects of Inherent Structural Characteristics on Seismic Performances of Aseismically Base-Isolated Buildings vol.44, pp.4, 2015, https://doi.org/10.1007/s40996-019-00317-4