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Communication Dans Un Congrès Année : 2020

Preventive fatigue strenghthening of steel structures with bonded CFRP Efficiency demonstration on a real bridge

Karim Benzarti
Sylvain Chataigner
Mazen Wahbeh
  • Fonction : Auteur
  • PersonId : 1354326
Rami Boundouki
  • Fonction : Auteur
  • PersonId : 1354327
Elena Martin
  • Fonction : Auteur
  • PersonId : 1354328
Luis Sopena
  • Fonction : Auteur
  • PersonId : 1354329
Maria Zalbide
  • Fonction : Auteur
  • PersonId : 1354330
David Garcia-Sanchez
  • Fonction : Auteur
  • PersonId : 1354331
Veit Birtel
  • Fonction : Auteur
  • PersonId : 1354332
Frank Lehmann
  • Fonction : Auteur
  • PersonId : 1354333
Gianluca Gemignani
  • Fonction : Auteur
  • PersonId : 1354334

Résumé

One of the goals of sustainable development applied to bridge infrastructure is to provide bridge owners with strengthening solutions that may lead to an increase of existing structures service life. In the case of steel bridges, the assessment of the remaining service life is most often linked to the determination of the structural deterioration caused by corrosion and fatigue. Damage caused by fatigue is very difficult to assess before crack initiation, and is more bound to occur in old structures, for which the phenomenon was not taken into account in design before 1970. In addition, old steel materials present a more brittle behavior. To address these issues, a preventive methodology for fatigue strengthening of steel structures and a strengthening solution based on the use of an adhesively bonded UHM (Ultra High Modulus) CFRP (Carbon Fiber Reinforced Polymer) plate was developed and applied to an existing bridge (Jarama bridge near Madrid in Spain) for validation. Strain measurement was carried out to verify the theoretical expectations of the reinforcement, and different parameters were studied such as the influence of low traffic during reinforcement application. The obtained results proved the efficiency of the system for the studied structure.
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Dates et versions

hal-04466453 , version 1 (19-02-2024)

Identifiants

  • HAL Id : hal-04466453 , version 1

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Karim Benzarti, Sylvain Chataigner, Mazen Wahbeh, Rami Boundouki, Elena Martin, et al.. Preventive fatigue strenghthening of steel structures with bonded CFRP Efficiency demonstration on a real bridge. International Conference on Advanced Composite Materials in Bridges and Structures, Aug 2020, Sherbrooke (Québec), Canada. ⟨hal-04466453⟩
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