6533b852fe1ef96bd12aa2fa
RESEARCH PRODUCT
Failure by corrosion in PC bridges: A case history of a viaduct in Italy
Giuseppe RicciardiAntonino RecuperoNino SpinellaPiero Colajannisubject
EngineeringMonitoringProgressive collapse analysi0211 other engineering and technologiesCollapse020101 civil engineering02 engineering and technology0201 civil engineeringlaw.inventionCorrosionPrestressed concretelaw021105 building & constructionForensic engineeringMechanics of MaterialViaductPractical implicationsCivil and Structural EngineeringMonitoring Planbusiness.industryCollapse Corrosion Monitoring Prestressed concrete Progressive collapse analysis Viaduct Civil and Structural Engineering Mechanics of Materials Mechanical EngineeringMechanical EngineeringStructural engineeringProgressive collapse analysisStrength of materialsCorrosionSettore ICAR/09 - Tecnica Delle CostruzioniMechanics of MaterialsPrestressed concretebusinessdescription
Purpose The paper illustrates 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 in to 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
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-03-04 |