Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Extending the Service Life of Bridges Using CFRP Laminates and Continuous Decks
Deteriorated deck joints and cracks in girders pose a persistent performance and maintenance problem for our bridges. Using jointless bridge decks reduces direct and indirect costs associated with bridge maintenance and repair. Also, using FRP in girders' flexure strengthening proved to be effective. In this research, an experimental testing was conducted on five girders to study the effect of CFRP bonded to the tension fibers in flexure and sides in shear. This paper also presents an approach to investigate the behavior of jointless bridge deck systems using a nonlinear finite element analysis for bridges subjected to instantaneous and time-dependent effects. The study covers key parameters such as support configurations, time-dependent effects, link slab stiffness, and debonded length. Analytical results of mode of deformation, strains, and deflections were compared with experimental testing. The study suggested that the use of debonded link slab and CFRP laminate's in girder repair can be effective in extending the service life of new or repaired bridges.
Extending the Service Life of Bridges Using CFRP Laminates and Continuous Decks
Deteriorated deck joints and cracks in girders pose a persistent performance and maintenance problem for our bridges. Using jointless bridge decks reduces direct and indirect costs associated with bridge maintenance and repair. Also, using FRP in girders' flexure strengthening proved to be effective. In this research, an experimental testing was conducted on five girders to study the effect of CFRP bonded to the tension fibers in flexure and sides in shear. This paper also presents an approach to investigate the behavior of jointless bridge deck systems using a nonlinear finite element analysis for bridges subjected to instantaneous and time-dependent effects. The study covers key parameters such as support configurations, time-dependent effects, link slab stiffness, and debonded length. Analytical results of mode of deformation, strains, and deflections were compared with experimental testing. The study suggested that the use of debonded link slab and CFRP laminate's in girder repair can be effective in extending the service life of new or repaired bridges.
Extending the Service Life of Bridges Using CFRP Laminates and Continuous Decks
El-Safty, Adel (Autor:in)
Structures Congress 2008 ; 2008 ; Vancouver, British Columbia, Canada
Structures Congress 2008 ; 1-10
14.10.2008
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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