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 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.70 No.6
- 발행연도
- 2019.1
- 수록면
- 723 - 735 (13page)
이용수
초록· 키워드
오류제보하기
Track-bridge interaction (TBI) problem often arises from the adoption of modern continuously welded rails. Rail expansion devices (REDs) are generally required to release the intensive interaction between long-span bridges and tracks. In their necessity evaluations, the key techniques are the numerical models and methods for obtaining TBI responses. This paper thus aims to propose a preferable model and the associated procedure for TBI analysis to facilitate the designs of long-span bridges as well as the track structures. A novel friction-spring model was first developed to represent the longitudinal resistance features of fasteners with or without vertical wheel loadings, based on resistance experiments for three types of rail fasteners. This model was then utilized in the loading-history-based TBI analysis for an urban rail transit dwarf tower cable-stayed bridge installed with a RED at the middle. The finite element model of the long-span bridge for TBI analysis was established and updated by the bridge’s measured natural frequencies. The additional rail stresses calculated from the TBI model under train loadings were compared with the measured ones. Overall agreements were observed between the measured and the computed results, showing that the proposed TBI model and analysis procedure can be used in further study.
목차
등록된 정보가 없습니다.
참고문헌 (36)
참고문헌 신청
Bin Yan / 2012 / Beam-track interaction of high-speed railway bridge with ballast track / Journal of Central South University 19(5):1447~1453
Chen, R. / 2013 / Track-bridge longitudinal interaction of continuous welded rails on arch bridge’’ / Math. Problems Eng :1155
Cutillas, A. M. / 2008 / Track-Bridge Interaction on High-Speed Railways :19~28
Gong-lian Dai / 2012 / Longitudinal forces of continuously welded track on high-speed railway cable-stayed bridge considering impact of adjacent bridges / Journal of Central South University 19(8):2348~2353
Gong-lian Dai / 2013 / Applicability of small resistance fastener on long-span continuous bridges of high-speed railway / Journal of Central South University 20(5):1426~1433
Chen, R. / 2013 / Track-bridge longitudinal interaction of continuous welded rails on arch bridge’’ / Math. Problems Eng :1155
Cutillas, A. M. / 2008 / Track-Bridge Interaction on High-Speed Railways :19~28
Gong-lian Dai / 2012 / Longitudinal forces of continuously welded track on high-speed railway cable-stayed bridge considering impact of adjacent bridges / Journal of Central South University 19(8):2348~2353
Gong-lian Dai / 2013 / Applicability of small resistance fastener on long-span continuous bridges of high-speed railway / Journal of Central South University 20(5):1426~1433
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