Earthquakes and Structures

  • 제19권6호
  • /
  • Pages.427-444
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  • 2020
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  • 2092-7614(pISSN)
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  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Effect of various aspects on the seismic performance of a curved bridge with HDR bearings

  • Gupta, Praveen K. (Department of Civil Engineering, Kamla Nehru Institute of Technology Sultanpur) ;
  • Ghosh, Goutam (Department of Civil Engineering, Motilal Nehru National Institute of Technology Allahabad)
  • 투고 : 2019.08.24
  • 심사 : 2020.11.21
  • 발행 : 2020.12.25
⟨ 이전 논문 다음 논문 ⟩

초록

The performance of an isolated horizontally curved continuous bridge with High Damping Rubber (HDR) Bearings has been investigated under seismic loading conditions. The effectiveness of response controls of the bridge by HDR bearings for various aspects viz. variation in ground motion characteristics, multi-directional effect, level of earthquake shaking, varying incidence angle, have been determined. Three recorded ground motions, representative of historical earthquakes along with near-field, far-field and forward directivity effects, have been considered in the study. The efficacy of the bearings with bidirectional effect considering interaction behavior of bearing and pier has also been investigated. Modeling and analysis of the bridge have been done by finite element approach. Sensitivity studies of the bridge response with respect to design parameters of the bearings for the considered ground motions have been performed. The importance of the nonlinearity of HDR bearings along with crucial design parameters has been identified. It has been observed that the HDR bearings performed well in different variations of ground motions, especially for controlling torsional moment. However, the deck displacement has been found to be increased significantly in case of Turkey ground motions, considering forward directivity effect, which needs to be paid more attention from designer point of view.

키워드

과제정보

The research work mentioned in this paper was financially supported by the Science and Engineering Research Board (SERB), Department of Science and Technology, New Delhi. Thanks to SERB for their support.

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