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Statistical Data Analysis of Inspection Outcomes of Post-Tensioned Concrete Bridges in Italy

Celati, Simone LU orcid ; Mattei, Francesca ; Salvatore, Walter and Thons, Sebastian LU (2025) 2025 International Association for Bridge and Structural Engineering, IABSE 2025 In IABSE Congress Ghent 2025: The Essence of Structural Engineering for Society, Proceedings p.108-115
Abstract

Corrosion of cables can result in brittle and unexpected failures and represents a critical concern for prestressed concrete bridges with post-tensioned (PT) tendons. In these structures, corrosion is typically facilitated by inadequate grout injection and/or the use of poor-quality mortar during construction. Such deficiencies create favorable conditions for corrosion initiation and propagation. Furthermore, injection voids are not detectable through visual inspections, implying that both the number and location of these defects are characterized by significant uncertainty. Considering these challenges, the present paper presents the statistical analyses conducted on a comprehensive dataset compiled from numerous inspection reports of... (More)

Corrosion of cables can result in brittle and unexpected failures and represents a critical concern for prestressed concrete bridges with post-tensioned (PT) tendons. In these structures, corrosion is typically facilitated by inadequate grout injection and/or the use of poor-quality mortar during construction. Such deficiencies create favorable conditions for corrosion initiation and propagation. Furthermore, injection voids are not detectable through visual inspections, implying that both the number and location of these defects are characterized by significant uncertainty. Considering these challenges, the present paper presents the statistical analyses conducted on a comprehensive dataset compiled from numerous inspection reports of existing PT bridges across Italy, with the aim of better addressing the inspections and especially developing probabilistic models useful for reliability analysis of these structures.

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Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
brittle failures, corrosion, existing bridges, injection voids, poor-quality mortar, post-tensioning, special inspections, statistical analysis, strands, wires
host publication
IABSE Congress Ghent 2025 : The Essence of Structural Engineering for Society, Proceedings - The Essence of Structural Engineering for Society, Proceedings
series title
IABSE Congress Ghent 2025: The Essence of Structural Engineering for Society, Proceedings
editor
Leonetti, Davide ; Snijder, Bert ; De Pauw, Bart ; De Pauw, Bart and van Alphen, Sander
pages
8 pages
publisher
International Association for Bridge and Structural Engineering
conference name
2025 International Association for Bridge and Structural Engineering, IABSE 2025
conference location
Ghent, Belgium
conference dates
2025-08-27 - 2025-08-29
external identifiers
  • scopus:105021083895
ISBN
9783857482106
DOI
10.2749/ghent.2025.0108
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2025 IABSE Congress Ghent 2025: The Essence of Structural Engineering for Society, Proceedings. All rights reserved.
id
26b75b0b-d41d-4960-9117-0a63d04719ea
date added to LUP
2025-11-21 08:29:32
date last changed
2025-11-25 13:36:13
@inproceedings{26b75b0b-d41d-4960-9117-0a63d04719ea,
  abstract     = {{<p>Corrosion of cables can result in brittle and unexpected failures and represents a critical concern for prestressed concrete bridges with post-tensioned (PT) tendons. In these structures, corrosion is typically facilitated by inadequate grout injection and/or the use of poor-quality mortar during construction. Such deficiencies create favorable conditions for corrosion initiation and propagation. Furthermore, injection voids are not detectable through visual inspections, implying that both the number and location of these defects are characterized by significant uncertainty. Considering these challenges, the present paper presents the statistical analyses conducted on a comprehensive dataset compiled from numerous inspection reports of existing PT bridges across Italy, with the aim of better addressing the inspections and especially developing probabilistic models useful for reliability analysis of these structures.</p>}},
  author       = {{Celati, Simone and Mattei, Francesca and Salvatore, Walter and Thons, Sebastian}},
  booktitle    = {{IABSE Congress Ghent 2025 : The Essence of Structural Engineering for Society, Proceedings}},
  editor       = {{Leonetti, Davide and Snijder, Bert and De Pauw, Bart and De Pauw, Bart and van Alphen, Sander}},
  isbn         = {{9783857482106}},
  keywords     = {{brittle failures; corrosion; existing bridges; injection voids; poor-quality mortar; post-tensioning; special inspections; statistical analysis; strands; wires}},
  language     = {{eng}},
  pages        = {{108--115}},
  publisher    = {{International Association for Bridge and Structural Engineering}},
  series       = {{IABSE Congress Ghent 2025: The Essence of Structural Engineering for Society, Proceedings}},
  title        = {{Statistical Data Analysis of Inspection Outcomes of Post-Tensioned Concrete Bridges in Italy}},
  url          = {{http://dx.doi.org/10.2749/ghent.2025.0108}},
  doi          = {{10.2749/ghent.2025.0108}},
  year         = {{2025}},
}