Damage and collapse mode of existing post tensioned precast concrete bridge: The case of Petrulla viaduct

Anania, Laura; Badalà, Antonio; D’Agata, G.

doi:10.1016/j.engstruct.2018.02.039

Cited by 59 publications

(28 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Overstressing as a result of heavy corrosion can reach the ultimate strength of components and result in their rupture [11]. Furthermore, rupture of certain components in the structure can redistribute the stress to the neighboring regions and accelerate its collapse [12,13]. In order to improve the corrosion resistance of bridges made of steels, their surface is coated by protective multilayers of variable thickness and composition [14,15].…”

Section: Introductionmentioning

confidence: 99%

Attenuation of Barkhausen Noise Emission due to Variable Coating Thickness

Zgútová

Pitoňák

2021

Coatings

View full text Add to dashboard Cite

Monitoring of the stress state of bridges by the use of the Barkhausen noise technique has been already introduced and this method can be adapted for monitoring of component’s overstressing. Measurement of Barkhausen noise on real bridges is carried out through the coating applied as a layer to increase the corrosion resistance of bodies. However, it was found that the thickness of the coating could vary, which in turn affects the Barkhausen noise signals and makes it difficult to assess the real stress state. For this reason, this paper deals with attenuation of Barkhausen noise emission due to variable thicknesses of coatings on the steel S460MC. It was found that increasing the thickness progressively decreases the Barkhausen noise emission and shifts the Barkhausen noise envelopes to the higher magnetic fields. Furthermore, the thickness of the coating also affects the relationship between the tensile stress and the Barkhausen noise.

show abstract

Section: Introductionmentioning

confidence: 99%

Attenuation of Barkhausen Noise Emission due to Variable Coating Thickness

Zgútová

Pitoňák

2021

Coatings

View full text Add to dashboard Cite

show abstract

“…The corrosion extent and superimposed prestressing of the tendon have been analysed in some studies. Anania et al [5] reported that the collapse of the Petrulla viaduct was due to poor construction practice and accelerated tendon corrosion, which consequently reduced the tendon’s cross-section. Singh et al [6] attributed the failure of the tendons as a result of mechanical wear, stress overload, as well as corrosion pitting.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Tendon Prestressing after Long-Term Service via the Barkhausen Noise Technique

et al. 2019

View full text Add to dashboard Cite

This paper deals with the assessment of a real prestressed tendon by the use of Barkhausen noise emission. The tendon was obtained from a real highway bridge after 33 years in service. Barkhausen noise is studied as a function of the stress state, and the Barkhausen noise signals received directly from the tendon on the real bridge are compared with the Barkhausen noise signals received from the tendon during loading in the laboratory. Assessment of the prestressing is based on the analysis of the effective value of the Barkhausen noise signal as well as the position in which the Barkhausen noise envelopes attain a maximum.

show abstract

“…In prestressed RC structures, the potential risks of corrosion would be more severe than the conventional RC structures, as shown by several damage cases, which have occurred in European countries [10][11][12][13][14]. In the prestressed elements, the combination of applied stress and the cross-section loss of reinforcements due to corrosion could enhance the risk of brittle failure [15,16].…”

Section: Introductionmentioning

confidence: 99%

“…Recent collapses of prestressed RC structures due to corrosion put the safety of the elements under question [11][12][13][14][15][21][22][23][24][25]. Examples include the partial collapse of Berlin Congress Hall in 1980 due to the combination of corrosion and stress concentration in the tendons (stress corrosion cracking, SCC), the Ynys-y-Gwas Bridge in the UK, which failed in 1985, and the Saint Stefano Bridge in 1990, which collapsed due to the pitting corrosion of prestressing strands [11,13,22].…”

Section: Introductionmentioning

confidence: 99%

Residual Flexural Capacity of Corroded Prestressed Reinforced Concrete Beams

Kioumarsi

Benenato

Ferracuti

et al. 2021

Metals

View full text Add to dashboard Cite

Infrastructures and industrial buildings are commonly exposed to aggressive environments and damaged by corrosion. In prestressed reinforced concrete structures, the potential risks of corrosion could be severe since reinforcements are already subjected to high amounts of stress and, consequently, their load-bearing capacity could abruptly decrease. In recent years, some experimental studies have been conducted to explore the flexural behavior of corroded pretensioned reinforced concrete (PRC) beams, investigating several aspects of residual structural performance. Although many studies have been done in this area, there is no concise paper reviewing the state-of-the-art research. Accordingly, the main objective of this paper is to provide a review of the available experimental tests for residual capacity assessment of corroded PRC beams. Based on the state-of-the-art review, a degradation law for the flexural strength of corroded PRC beams is suggested.

show abstract

Damage and collapse mode of existing post tensioned precast concrete bridge: The case of Petrulla viaduct

Cited by 59 publications

References 15 publications

Attenuation of Barkhausen Noise Emission due to Variable Coating Thickness

Attenuation of Barkhausen Noise Emission due to Variable Coating Thickness

Assessment of Tendon Prestressing after Long-Term Service via the Barkhausen Noise Technique

Residual Flexural Capacity of Corroded Prestressed Reinforced Concrete Beams

Contact Info

Product

Resources

About