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.
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Present study was supported by Department of Civil Engineering, GLA University, Mathura. However, it did not require any kind of funding.
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All the authors have reviewed the manuscript. SA: conceptualization, methodology, investigation, data curation, writing—original draft. PKG: conceptualization methodology supervision, visualization, resources, writing—review & editing. GG: review & editing.
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Agrawal, S., Gupta, P.K. & Ghosh, G. A comparative assessment on the response of isolated curved bridges with varying radius of curvature. Asian J Civ Eng 25, 1967–1977 (2024). https://doi.org/10.1007/s42107-023-00888-8
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DOI: https://doi.org/10.1007/s42107-023-00888-8