Technical Papers
Jun 24, 2022

Numerical Analysis and Vulnerability Assessment of Horizontally Curved Multiframe RC Box-Girder and CFRP Retrofitting of Existing Bridges

Publication: ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering
Volume 8, Issue 3

Abstract

Given the special geometric features of curved bridges, they show a complex behavior during an earthquake. Considering the fact that bridges have shown vulnerability during past earthquakes, vulnerability evaluation and retrofitting of bridges has become of significant importance. Therefore, this work addressed the impact of different radii of curvature on the probability of seismic damage for curved multiframe concrete box-girder bridges and compared the results with those of straight bridge. The bridge piers were then retrofitted with carbon fiber–reinforced polymer (CFRP). Subsequently, bridge systems were modeled in OpenSEES software subjected to 80 near-fault ground-motion records, considering three components of the earthquake in three dimensions and including all the existent uncertainties. Numerical results indicate that with decreasing bridge radius, the probability of bridge vulnerability substantially increases. Moreover, strengthening bridge piers with CFRP increases median fragility by approximately 32% on average, and thus has a significant impact on reducing the vulnerability of the bridge system.

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Data Availability Statement

All data, models, and code generated or used during the study appear in the published article.

Acknowledgments

This work was supported by Babol Noshirvani University of Technology under Grant BNUT/370680/97. This financial support is gratefully acknowledged.

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Go to ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering
ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering
Volume 8Issue 3September 2022

History

Received: Aug 19, 2021
Accepted: Feb 1, 2022
Published online: Jun 24, 2022
Published in print: Sep 1, 2022
Discussion open until: Nov 24, 2022

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Ph.D. Candidate, Dept. of Structural Engineering, Babol Noshirvani Univ. of Technology, Tehran 4714873113, Iran. Email: [email protected]
Alireza MirzaGoltabar Roshan [email protected]
Associate Professor, Dept. of Civil Engineering, Babol Noshirvani Univ. of Technology, Tehran 4714873113, Iran (corresponding author). Email: [email protected]
Hossein Pahlavan [email protected]
Assistant Professor, Dept. of Civil Engineering, Shahrood Univ. of Technology, Tehran 3619995161, Iran. Email: [email protected]
Gholamreza Ghodrati Amiri [email protected]
Professor, Center of Excellence for Fundamental Studies in Structural Engineering, School of Civil Engineering, Iran Univ. of Science and Technology, Tehran 1684613114, Iran. Email: [email protected]

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