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author:

Bergami, Alessandro Vittorio (Bergami, Alessandro Vittorio.) [1] | Pelle, Angelo (Pelle, Angelo.) [2] | Fiorentino, Gabriele (Fiorentino, Gabriele.) [3] | Lavorato, Davide (Lavorato, Davide.) [4] | Giaccu, Gian Felice (Giaccu, Gian Felice.) [5] | Quaranta, Giuseppe (Quaranta, Giuseppe.) [6] | Briseghella, Bruno (Briseghella, Bruno.) [7] | Nuti, Camillo (Nuti, Camillo.) [8]

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Abstract:

An efficient yet accurate procedure was developed for the seismic assessment of reinforced concrete (RC) bridges subject to chloride-induced corrosion. The procedure involves using incremental modal pushover analysis to assess corroded bridges as an alternative and less computationally demanding approach to non-linear dynamic analysis. A multi-physics finite-element analysis is performed to evaluate the effects of chloride-induced corrosion on bridge columns. In doing so, chloride ingress in concrete is numerically simulated as a diffusion process by considering the effects of temperature, humidity, corrosion-induced cover cracking and concrete aging. The estimated chloride concentration is then employed to evaluate the corrosion current density, from which the effects of corrosion on reinforcement, cracked cover concrete, confinement and plastic hinge length can be determined for subsequent non-linear static analysis. A case study of a typical bridge structure is presented. The proposed procedure can be used to assess the seismic performance of irregular RC bridges exposed to severe corrosive environments. © 2021 ICE Publishing: All rights reserved.

Keyword:

Atmospheric corrosion Chlorine compounds Concrete bridges Corrosive effects Modal analysis Reinforced concrete Seismology

Community:

  • [ 1 ] [Bergami, Alessandro Vittorio]Department of Architecture, Roma Tre University, Rome, Italy
  • [ 2 ] [Pelle, Angelo]Department of Architecture, Roma Tre University, Rome, Italy
  • [ 3 ] [Fiorentino, Gabriele]Department of Civil Engineering, University of Bristol, Bristol, United Kingdom
  • [ 4 ] [Lavorato, Davide]Department of Architecture, Roma Tre University, Rome, Italy
  • [ 5 ] [Giaccu, Gian Felice]Department of Architecture, Design and Urban Planning, University of Sassari, Alghero, Italy
  • [ 6 ] [Quaranta, Giuseppe]Department of Structural and Geotechnical Engineering, Sapienza University of Rome, Rome, Italy
  • [ 7 ] [Briseghella, Bruno]College of Civil Engineering, Fuzhou University, University Town, Fuzhou, Fujian, China
  • [ 8 ] [Nuti, Camillo]Department of Architecture, Roma Tre University, Rome, Italy

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Source :

Proceedings of the Institution of Civil Engineers: Bridge Engineering

ISSN: 1478-4637

Year: 2022

Issue: 4

Volume: 175

Page: 213-227

1 . 0

JCR@2022

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JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 1

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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