마찰복원형 지진격리장치가 설치된 케이블교량의 성능기반 내진설계법 개선(I-실 교량 실험 결과 분석)
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)
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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.
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.
참고문헌 (12)
- 유성문, "ICT센터 사례 연구를 통한 EQS의 건축 구조물 면진에 의 적용 연구", 한국지진공학회논문집, 17(2), pp.61~70 (2013), 한국지진공학회
- 한경봉, "지진격리장치를 이용한 기존 교량의 내진성능 향상", 한국지진공학회논문집, 8(2), pp.9~17 (2004), 한국지진공학회
- 이유인, "원전 EQS 면진장치의 성능개선을 위한 연구", 한국지진공학회논문집, 19(1), pp.13~19 (2015), 한국지진공학회
- Ha DH, "Earthquake response characteristics of seismically isolated bridges with frictional bearings", KSCE Journal of Civil Engineering, 20(6-A), pp.937~944 (2000)
- 김범수, "EQS 면진장치의 항복 후 강성을 고려한 면진 원전구조물의 지진응답", 한국지진공학회논문집, 20(5), pp.319~329 (2016), 한국지진공학회
- Biswas SK, "Friction and Wear of PTFE – A Review. An International Journal on the Science and Technology of Friction", Lubrication and Wear, 158(1), pp.193~211 (1992)
- 박형기, "폴리우레탄 스프링 복원형 디스크 받침의 동적거동에 대한 실험 및 해석적 연구", 한국지진공학회논문집, 15(2), pp.61~69 (2011), 한국지진공학회
- Han KB, "Structural identification of dynamic systems using parameter updating reanalysis method : experimental investigation using the measures data", Transactions of the Canadian Society for Mechanical Engineering, 40(5), pp.847~857 (2016)
- Ministry of Land, Infrastructure and Transportation, "Korean Highway Bridge Design Code (Limit State Design) for Cable Supported Bridges", ~ (2016)
- Chang CC, "Ambient vibration of long-span cable-stayed bridge", Journal of Bridge Engineering, 6(1), pp.46~53 (2001)
- Final Report of Acceptance Test for 3rd Bosphorus Bridge, "KGM", ~ (2016)
- Tsopelas P, "Experimental Study of Bridge Seismic Sliding Isolation Systems", Engineering Structures, 18(4), pp.301~310 (1996)