DOI QR코드

DOI QR Code

EPFT 강관기둥으로 보강된 콘크리트 기둥의 내진성능실험

Seismic Performance Test of Concrete Column Reinforced with EPFT

  • 투고 : 2022.08.17
  • 심사 : 2022.09.01
  • 발행 : 2022.09.15

초록

Unlike the CFT retrofit method, The EPFT retrofit method, which fills the steel tube with engineering plastic, does not require a separate concrete forming work and is a lightweight seismic Retrofit Method. In this study, an prototype model of the EPFT was proposed, and to analyze the seismic performance, an independent specimens and a reinforced concrete column were fabricated to conduct a seismic performance test. As a result of loading test of the independent specimens, the strength was increased compared to the steel tube column without internal filling, and the ductility ratio did not significantly increase due to the falling off of the weld. As a result of loading test of the concrete reinforcement specimen, the strength, ductility ratio, and energy dissipation were increased, and the number of cracks by loading step decreased compared to the non-reinforced specimen.

키워드

과제정보

이 논문은 2022년도 정부(과학기술정보통신부)의 재원으로 한국연구재단(NRF-2021R1A2C109464212)에 의해 수행되었습니다.

참고문헌

  1. Han, T.H., Kim, S.N., & Kang, Y.J., "Evaluation of Seismic Performance for and Internally Confined Hollow CFT Column" Magazine of the Korean Society of Steel Construction, Vol.19, pp.53-65, 2007.
  2. Lee, M.H., Park, S.B., Shin, S.H., Lee, J.W., & Yoon, J.B., "A Experimental Investigation on Seismic Performance of RC Column Retrofitted with Concrete-Filled Steel Tube", Journal of the Architectural Institute of Korea Structure & Construction, Vol.22(6), pp.55-63, 2020.
  3. Lee, D.C., "The Construction of Concrete Filled Steel Tube Structure", Magazine of the Korean Society of Steel Construction, Vol.13(1), pp.97-105, 2001
  4. "pif story", Naver blog, https://m.blog.naver.com/PostList.naver?blogId=globalee
  5. "Plastic Solution", Ensinger, https://www.ensingerplastics.com/ko-kr/shapes/engineering-plastics, Ensinger
  6. Lee, Y.J., Baek, N.J., & Hong, C.M., "The Characteristics and Applications of Polyphenylene Sulfide", Polymer science and technology, Vol.18(1), pp.20-25, 2007.
  7. "Kolon Group Blog", https://blog.kolon.com/972
  8. Choi, G.D., "Technology Trend of Engineering Plastics", Polymer science and technology, Vol.20(1), pp.3-7, 2009.
  9. FEMA, "Interim Testing Protocols for Determining the Seismic Performance Characteristics of Structural and Nonstructural Components(FEMA-461)", pp.21-23, 2007.