Purpose - The purpose of this paper is to illustrate a viaduct collapse due to corrosion phenomena. Moreover, a contribution to the issues related to both the control of existing structures and design methods to be followed for the construction of new buildings is provided. Design/methodology/approach - The objectives were achieved by in situ observations and numerical analyses. The effects of corrosion phenomena are investigated, and the progressive collapse analysis is provided to be helpful in this case. Findings - The damages induced by corrosion phenomena have caused the collapse of the viaduct taken into account. The performed numerical analyses were able to reproduce the effects of corrosion in terms of reduction of wires diameter. Research limitations/implications - The research is limited to prestressed concrete viaduct with post-tensioned cables. Practical implications - A monitoring plan, subdivided in several phases, is suggested, to avoid critical situations as these described. Originality/value - The case study brought useful information on the effects of corrosion on the decks section, showing how the technology in post-tensioned cables is usually insidious and prone to the issues relating to corrosion of the wires.

Colajanni, P., Recupero, A., Ricciardi, G., Spinella, N. (2016). Failure by corrosion in PC bridges: A case history of a viaduct in Italy. INTERNATIONAL JOURNAL OF STRUCTURAL INTEGRITY, 7(2), 181-193 [10.1108/IJSI-09-2014-0046].

Failure by corrosion in PC bridges: A case history of a viaduct in Italy

COLAJANNI, Piero;
2016-01-01

Abstract

Purpose - The purpose of this paper is to illustrate a viaduct collapse due to corrosion phenomena. Moreover, a contribution to the issues related to both the control of existing structures and design methods to be followed for the construction of new buildings is provided. Design/methodology/approach - The objectives were achieved by in situ observations and numerical analyses. The effects of corrosion phenomena are investigated, and the progressive collapse analysis is provided to be helpful in this case. Findings - The damages induced by corrosion phenomena have caused the collapse of the viaduct taken into account. The performed numerical analyses were able to reproduce the effects of corrosion in terms of reduction of wires diameter. Research limitations/implications - The research is limited to prestressed concrete viaduct with post-tensioned cables. Practical implications - A monitoring plan, subdivided in several phases, is suggested, to avoid critical situations as these described. Originality/value - The case study brought useful information on the effects of corrosion on the decks section, showing how the technology in post-tensioned cables is usually insidious and prone to the issues relating to corrosion of the wires.
2016
Settore ICAR/09 - Tecnica Delle Costruzioni
Colajanni, P., Recupero, A., Ricciardi, G., Spinella, N. (2016). Failure by corrosion in PC bridges: A case history of a viaduct in Italy. INTERNATIONAL JOURNAL OF STRUCTURAL INTEGRITY, 7(2), 181-193 [10.1108/IJSI-09-2014-0046].
File in questo prodotto:
File Dimensione Formato  
2016_IJSI-09-2014-0046.pdf

Solo gestori archvio

Descrizione: Articolo principale
Dimensione 551.22 kB
Formato Adobe PDF
551.22 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/223560
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 51
  • ???jsp.display-item.citation.isi??? 26
social impact