Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Improvement of the Performance Based Seismic Design Method of Cable Supported Bridges with Resilient-Friction Base Isolation Systems (I- Analysis of Field Testing of Cable Supported Bridge)

마찰복원형 지진격리장치가 설치된 케이블교량의 성능 기반 내진설계법 개선(I-실 교량 실험 결과 분석)

  • Gil, Heungbae (Super Long Span Bridge R&D Center, Korea Expressway Corporation) ;
  • Park, Sun Kyu (Department of Civil Engineering, Sungkyunkwan University) ;
  • Han, Kyoung Bong (Super Long Span Bridge R&D Center, Korea Expressway Corporation) ;
  • Yoon, Wan Seok (Center for Smart Construction Technology, Korea Expressway Corporation)
  • 길흥배 (한국도로공사 초장대교량연구단) ;
  • 박선규 (성균관대학교 건설환경시스템공학과) ;
  • 한경봉 (한국도로공사 초장대교량연구단) ;
  • 윤완석 (한국도로공사 스마트건설사업단)
  • Received : 2019.11.18
  • Accepted : 2020.04.27
  • Published : 2020.07.01
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Abstract

In this study, a field bridge test was conducted to find the dynamic properties of cable supported bridges with resilient-friction base isolation systems (R-FBI). Various ambient vibration tests were performed to estimate dynamic properties of a test bridge using trucks in a non-transportation state before opening of the bridge and by ordinary traffic loadings about one year later after opening of the bridge. The dynamic properties found from the results of the tests were compared with an analysis model. From the result of the ambient vibration tests of the cable supported bridge with R-FBI, it was confirmed that the dynamic properties were sensitive to the stiffness of the R-FBI in the bridge, and the seismic analysis model of the test bridge using the effective stiffness of the R-FBI was insufficient for reflecting the dynamic behavior of the bridge. In the case of cable supported bridges, the seismic design must follow the "Korean Highway Bridge Design Code (Limit State Design) for Cable supported bridges." Therefore, in order to reflect the actual behavior characteristics of the R-FBI installed on cable-supported bridges, an improved seismic design procedure should be proposed.

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References

  1. Yu SM, Lee YI, Ji YS, Choi DS, Kim DK. A study on the application of EQS bearings for seismic isolation of building structures by ICT case study. Journal of the Earthquake Engineering Society of Korea. 2013 Mar;17(2):61-70. https://doi.org/10.5000/EESK.2013.17.2.061
  2. Han KB, Kim MJ, Park SK. Improvement of seismic performance of existing bridges using isolation. Journal of the Earthquake Engineering Society of Korea. 2004 Apr;8(2):9-17. https://doi.org/10.5000/EESK.2004.8.2.009
  3. Lee YI, Lee YJ, Lee HP, Cho MS, Jee YS, Beak JH. Study on the performance improvement of an EQS device applied nuclear power plant. Journal of the Earthquake Engineering Society of Korea. 2015 Jan;19(1):13-19. https://doi.org/10.5000/EESK.2015.19.1.013
  4. Ha DH, Koh HM. Earthquake response characteristics of seismically isolated bridges with frictional bearings. KSCE Journal of Civil Engineering. 2000 Nov;20(6-A):937-944.
  5. Kim BS, Song JK. Seismic responses of seismically isolated nuclear power plant structure considering post-yield stiffness of EQS bearing. Journal of the Earthquake Engineering Society of Korea. 2016 Sep;20(5):319-329. https://doi.org/10.5000/EESK.2016.20.5.319
  6. Biswas SK, Vijayan K. Friction and Wear of PTFE - A Review. An International Journal on the Science and Technology of Friction, Lubrication and Wear. 1992 Oct;158(1):193-211.
  7. Park HG, Lee YI, Jung DY. Experimental and analytical study of the dynamic behavior of a polyurethane spring restoring disk bearing. Journal of the Earthquake Engineering Society of Korea. 2011 Mar; 15(2):61-69. https://doi.org/10.5000/EESK.2011.15.2.061
  8. Han KB, Cho DY, Park SK. Structural identification of dynamic systems using parameter updating reanalysis method : experimental investigation using the measures data. Transactions of the Canadian Society for Mechanical Engineering. 2016;40(5):847-857. https://doi.org/10.1139/tcsme-2016-0069
  9. Ministry of Land, Infrastructure and Transportation. Korean Highway Bridge Design Code (Limit State Design) for Cable Supported Bridges. c2016.
  10. Chang CC, Chang TYP, Zhang QW. Ambient vibration of long-span cable-stayed bridge. Journal of Bridge Engineering. 2001;6(1):46-53. https://doi.org/10.1061/(ASCE)1084-0702(2001)6:1(46)
  11. KGM. Final Report of Acceptance Test for 3rd Bosphorus Bridge. c2016.
  12. Tsopelas P, Constantinou MC. Experimental Study of Bridge Seismic Sliding Isolation Systems : Engineering Structures. 1996;18(4): 301-310. https://doi.org/10.1016/0141-0296(95)00147-6