Seismic Performance of Prefabricated Composite Column for Accelerated Bridge Construction

급속시공을 위한 조립식 합성교각의 내진성능 평가

  • 이정우 (한국건설기술연구원 구조교량연구실) ;
  • 진원종 (한국건설기술연구원 구조교량연구실) ;
  • 조창빈 (한국건설기술연구원 구조교량연구실) ;
  • 곽종원 (한국건설기술연구원 구조교량연구실)
  • Received : 2009.06.29
  • Accepted : 2010.06.24
  • Published : 2010.08.26

Abstract

This paper investigates the seismic behavior of a prefabricated composite column which is made by onsite connection of precast composite column segments to accelerate bridge construction. Quasi-static cyclic loading tests were performed on three prefabricated composite columns with different connection details to find their seismic capacity. Test results show that the onsite connections remains in elastic range and no slip is observed as designed in spite of plastic hinge formation at the column. The test results also indicate that the prefabricated composite column has better overall seismic capacity compared to a conventional reinforced concrete column with seismic details.

이 논문에서는 교량의 급속시공을 위하여 분절하여 기 제작된 합성기둥을 현장에서 연결하여 완성하는 조립식 합성교각의 내진거동을 조사하였다. 이를 위해 서로 다른 연결 상세를 갖는 3개의 조립식 합성교각을 대상으로 정적반복가력실험을 수행하였다. 실험결과, 조립식 합성교각에 소성힌지가 발생하여도 현장연결부는 탄성적으로 거동하였고 연결부의 상대변위도 발생하지 않았다. 또한 조립식 합성교각의 전반적인 내진성능도 일반적인 내진상세를 가진 콘크리트교각에 비해서 우수한 것으로 나타났다.

Keywords

References

  1. S.L. Billington, J.K. Yoon (2004) Cyclic Response of Unbonded Posttensioned Precast Columns with Ductile Fiber- Reinforced Concrete, Journal of Bridge Engineering, ASCE, July/August, pp. 353-363.
  2. Y.-C. Ou, I.-S. Ahn, George C. Lee (2006) Cyclic Performance of Precast Concrete Segmental Bridge Columns, TRN Annual Meeting CD-ROM.
  3. Ryo Yamashita, David H. Sanders (2009) Seismic Performance of Precast Unbonded Prestressed Concrete Columns, Strucctural Journal, November, pp. 821-830.
  4. J.C. Wang, Y.C. Ou, K.C. Chang, G.C. Lee (2008) Large-scale Seismic Test of Tall concrete Bridge Columns with Precast Segmental Construction, Earthquake Engineering and Structural Dynamics, vol. 37, pp. 1449-1465. https://doi.org/10.1002/eqe.824
  5. H. Kim, C. Chim, C. Chung, C. Kim (2007) Evaluation of Seismic Performance of Prefabricated Bridge Piers with a Circular Solid Section, Journal of Earthquake Engineering Society of Korea, 11(3), pp. 23-31. https://doi.org/10.5000/EESK.2007.11.3.023
  6. Korea Road & Transportation Association (2005) Korea Highway Bridge Design Code.
  7. Korea Institute of Construction Technology (2001) Development of the Seismic Evaluation Technology for Bridges and the Nonlinear Seismic Analysis Program, KICT.
  8. S. Cho, J. Lee, D. Seo, T. Lee, J. Lee (2005) Optimum Design of Prestressed Concrete Girder Railway Bridge, Journal of the Korean Society for Railway, 8(3), pp. 201-296.