지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.27 No.3
- 발행연도
- 2021.1
- 수록면
- 447 - 455 (9page)
이용수
초록· 키워드
오류제보하기
Earthquakes cause severe damages to bridge structures, and rocking isolation of piers has become a superior option for the seismic protection of bridges during earthquakes. A seismic isolation method with free rocking mode is proposed for railway bridge piers with medium height. Experimental and numerical analysis are conducted to evaluate the seismic performance of the rocking-isolated bridge pier. Shaking table test is carried out with a scaled model by using three strong input earthquake records. The measured data includes displacement, acceleration and time history response of the pier-top and the bending moment of the pier-bottom. Test results show that the expected uplift and rocking of the isolated pier occur under strong earthquakes and the rocking-isolated pier has self-centering capacity. Slight damage appears at the collision surface between pier and base due to pier uplift, while there is no damage in the pier body. The bending moment of pier-bottom is less affected by the spectrum of input ground motions. The two-spring model is provided to simulate the isolated pier with free rocking mode under earthquakes. A seismic response analysis model for the rocking-ioslated pier is established with the assistance of OpenSees platform. The simulated results agree well with the measured results by shaking table test. Therefore, the seismic isolation method with a self-centering pier is worthy of promotion for railway bridges in high seismic risk regions.
목차
등록된 정보가 없습니다.
참고문헌 (31)
참고문헌 신청
송종걸 / 2013 / 지진의 특성주기를 고려한 완만한 곡선형 이력거동시스템의 비탄성 변위비 / 한국지진공학회논문집 17(1):1~10
J. A. Bachmann / 2018 / Is rocking motion predictable? / Earthquake Engineering & Structural Dynamics 47(2):535~552
J. L. Beck / 1973 / The seismic response of a reinforced concrete bridge pier designed to step / Earthquake Engineering & Structural Dynamics 2(4):343~358
Donato Cancellara / 2017 / Assessment and dynamic nonlinear analysis of different base isolation systems for a multi-storey RC building irregular in plan / Computers & Structures 180:74~88
Yi-Hsuan Chen / 2006 / Seismic isolation of viaduct piers by means of a rocking mechanism / Earthquake Engineering & Structural Dynamics 35(6):713~736
J. A. Bachmann / 2018 / Is rocking motion predictable? / Earthquake Engineering & Structural Dynamics 47(2):535~552
J. L. Beck / 1973 / The seismic response of a reinforced concrete bridge pier designed to step / Earthquake Engineering & Structural Dynamics 2(4):343~358
Donato Cancellara / 2017 / Assessment and dynamic nonlinear analysis of different base isolation systems for a multi-storey RC building irregular in plan / Computers & Structures 180:74~88
Yi-Hsuan Chen / 2006 / Seismic isolation of viaduct piers by means of a rocking mechanism / Earthquake Engineering & Structural Dynamics 35(6):713~736
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