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A comparative assessment on the response of isolated curved bridges with varying radius of curvature

A comparative assessment on the response of isolated curved bridges with varying radius of curvature In the present study, the effect of radius of curvature on the seismic response of isolated curved bridges has been determined. Three different types of isolation bearings, such as high-damping rubber bearing, lead rubber bearing, and friction pendulum system, have been considered in the study. Three different types of ground motions—Imperial Valley, Kobe, and Turkey, have been considered. The bilinear modeling of the isolation bearings has been done from the literature. The SAP 2000 nonlinear finite element analysis software has been used to model the bridge and isolation bearing. A nonlinear time history analysis has been done to determine the responses of the bridges. Thus, the peak responses of the bridge have been determined, such as deck acceleration, pier bending moment, pier torsional moment, and deck displacement. It has been observed that the curvature of the bridge significantly affected its response. All three bearings are effective in resisting the seismic response of the bridge. It is also observed that bidirectional loading increases the seismic response of the curved bridge relative to unidirectional loading. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Asian Journal of Civil Engineering Springer Journals

A comparative assessment on the response of isolated curved bridges with varying radius of curvature

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References (33)

Publisher
Springer Journals
Copyright
Copyright © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
ISSN
1563-0854
eISSN
2522-011X
DOI
10.1007/s42107-023-00888-8
Publisher site
See Article on Publisher Site

Abstract

In the present study, the effect of radius of curvature on the seismic response of isolated curved bridges has been determined. Three different types of isolation bearings, such as high-damping rubber bearing, lead rubber bearing, and friction pendulum system, have been considered in the study. Three different types of ground motions—Imperial Valley, Kobe, and Turkey, have been considered. The bilinear modeling of the isolation bearings has been done from the literature. The SAP 2000 nonlinear finite element analysis software has been used to model the bridge and isolation bearing. A nonlinear time history analysis has been done to determine the responses of the bridges. Thus, the peak responses of the bridge have been determined, such as deck acceleration, pier bending moment, pier torsional moment, and deck displacement. It has been observed that the curvature of the bridge significantly affected its response. All three bearings are effective in resisting the seismic response of the bridge. It is also observed that bidirectional loading increases the seismic response of the curved bridge relative to unidirectional loading.

Journal

Asian Journal of Civil EngineeringSpringer Journals

Published: Feb 1, 2024

Keywords: Curved bridge; Non-linear time history; SAP 2000V20; High damping rubber bearing; Lead rubber bearing; Friction pendulum system

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