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Experimental testing, computational analysis and analytical formulation for the remaining capacity assessment of bridge plate girders with naturally corroded ends
https://orcid.org/0000-0002-3489-4749
https://orcid.org/0000-0002-7159-7401
Abstract Aging bridges are prone to malfunctioning expansion joints, allowing water and deicing mixtures to seep trough deteriorate the superstructure components. This paper evaluates experimentally, computationally and numerically the residual load carrying capacity of plate girders containing corrosion-deteriorated ends. A full-scale laboratory test was conducted on a decommissioned bridge beam, and experimental data is used to validate a composite girder-level finite element model able to capture deteriorated beam strength. An extensive computational sensitivity analysis is performed to study the corrosion related parameters which significantly affect the residual capacity of plate girders. Moreover, analytical tools for residual strength evaluation are developed based on more than 1.000 scenarios of unique beam geometries and corrosion topologies. The efficiency of the developed closed form equations is numerically validated providing overall improved estimations compared to the current provisions in bridge design manual.
Highlights A naturally corroded bridge girder is tested to assess capacity. More than 1000 corrosion scenarios are numerically analyzed. New provisions for capacity estimation of corroded plate girders are proposed. The provisions account for three different general corrosion patterns.
Experimental testing, computational analysis and analytical formulation for the remaining capacity assessment of bridge plate girders with naturally corroded ends
https://orcid.org/0000-0002-3489-4749
https://orcid.org/0000-0002-7159-7401
Abstract Aging bridges are prone to malfunctioning expansion joints, allowing water and deicing mixtures to seep trough deteriorate the superstructure components. This paper evaluates experimentally, computationally and numerically the residual load carrying capacity of plate girders containing corrosion-deteriorated ends. A full-scale laboratory test was conducted on a decommissioned bridge beam, and experimental data is used to validate a composite girder-level finite element model able to capture deteriorated beam strength. An extensive computational sensitivity analysis is performed to study the corrosion related parameters which significantly affect the residual capacity of plate girders. Moreover, analytical tools for residual strength evaluation are developed based on more than 1.000 scenarios of unique beam geometries and corrosion topologies. The efficiency of the developed closed form equations is numerically validated providing overall improved estimations compared to the current provisions in bridge design manual.
Highlights A naturally corroded bridge girder is tested to assess capacity. More than 1000 corrosion scenarios are numerically analyzed. New provisions for capacity estimation of corroded plate girders are proposed. The provisions account for three different general corrosion patterns.
Experimental testing, computational analysis and analytical formulation for the remaining capacity assessment of bridge plate girders with naturally corroded ends
https://orcid.org/0000-0002-3489-4749
https://orcid.org/0000-0002-7159-7401
Abstract Aging bridges are prone to malfunctioning expansion joints, allowing water and deicing mixtures to seep trough deteriorate the superstructure components. This paper evaluates experimentally, computationally and numerically the residual load carrying capacity of plate girders containing corrosion-deteriorated ends. A full-scale laboratory test was conducted on a decommissioned bridge beam, and experimental data is used to validate a composite girder-level finite element model able to capture deteriorated beam strength. An extensive computational sensitivity analysis is performed to study the corrosion related parameters which significantly affect the residual capacity of plate girders. Moreover, analytical tools for residual strength evaluation are developed based on more than 1.000 scenarios of unique beam geometries and corrosion topologies. The efficiency of the developed closed form equations is numerically validated providing overall improved estimations compared to the current provisions in bridge design manual.
Highlights A naturally corroded bridge girder is tested to assess capacity. More than 1000 corrosion scenarios are numerically analyzed. New provisions for capacity estimation of corroded plate girders are proposed. The provisions account for three different general corrosion patterns.
Experimental testing, computational analysis and analytical formulation for the remaining capacity assessment of bridge plate girders with naturally corroded ends
Tzortzinis, G. (author) / Breña, S.F. (author) / Gerasimidis, S. (author)
Engineering Structures ; 252
2021-10-23
Article (Journal)
Electronic Resource
English
Reliability of corroded steel bridge girders.
Reliability model for corroded steel bridge girders
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