Journal of the Architectural Institute of Korea Structure & Construction (대한건축학회논문집:구조계)

Architectural Institute of Korea (대한건축학회)
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Seismic Performance of Reinforced Concrete Frame Retrofitted with Opening-Isolated Type System

개구부 격리형 시스템으로 보강된 철근콘크리트 골조의 내진성능

  • 박완신 (충남대 건설공학교육과) ;
  • 김선우 (충남대 건설공학교육과) ;
  • 정현석 (신성종합건축사사무소(주))
  • Received : 2019.12.12
  • Accepted : 2020.01.30
  • Published : 2020.02.28
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Abstract

The purpose of this study is to experimentally evaluate the effect of improving seismic performance by applying the details of seismic reinforcement to the reinforced concrete frame with non-seismic details while maintaining the original opening shape. In this study, based on CF specimens with specific seismic details, a total of four full scale specimens were designed and fabricated. The main variables are the width and spacing of steel dampers installed in the upper and lower parts of seismic reinforcement details, and the presence or absence of torsion springs installed in the hinges. As a result of the test, it was evaluated to be helpful for seismic retrofit and opening isolation of steel dampers installed at the upper and lower parts of the seismic reinforcement details and torsion springs installed at the joints. In particular, CFR2S specimens with torsion springs showed the best performance in terms of strength, stiffness and energy dissipation capacity with increasing displacement angle.

Keywords

Acknowledgement

Supported by : 충남대학교

이 연구는 충남대학교 학술연구비에 의해 지원되었음

References

  1. Benavent Climent A., Oh, S., & Akiyama, H. (1998). Ultimate energy absorption capacity of slit-type steel plates subjected to shear deformations. Journal of Structural and Construction Engineering (Transactions of AIJ), 63(503), 139-147. https://doi.org/10.3130/aijs.63.139_1
  2. Jung, H., Jung, J., & Lee, K. (2019). Seismic Performance Evaluation of Internal Steel Frame Connection Method for Seismic Strengthening by Cycling Load Test and Nonlinear Analysis, Journal of the Korea Concrete Institute, 31(1), 79-88. https://doi.org/10.4334/JKCI.2019.31.1.079
  3. Kim, S. (2017). Seismic Capacity Assessment and Seismic Reinforcement Case, Magazine of the Architectural Institiute of Korea, 61(3), 22-25.
  4. Kim, S., Yun, H., & Jang, Y. (2009). Structural Performance of Precast Infill Walls as a Damage-Fuse Element for Seismic Retrofit, Journal of the Architectural Institute of Korea, 25(3), 43-50.
  5. Korea Meteorological Administration (2019). Trend of domestic earthquake [website: http://www.weather.go.kr/weather/earthquake_volcano/domestictrend.jsp]
  6. Korean Standards Association (2013). KS B 0802 Method of tensile test for metallic materials, 6.
  7. Korean Standards Association (2014). KS F 2403 Standard test method for making and curing concrete specimens, 8.
  8. Korean Standards Association (2017). KS B 0801 Test pieces for tensile test for metallic materials, 14.
  9. Korean Standards Association (2017). KS F 2405 Standard test method for compressive strength of concrete, 7.