A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Fatigue and overloading behavior of steel-concrete composite flexural members strengthened with high modulus CFRP materials
Due to corrosion and the continuous demand to increase traffic loads, there is a need for an effective system which can be used to repair and/or strengthen steel bridges and structures. This paper describes an experimental program, recently completed, to investigate the fundamental behavior of steel-concrete composite scaled bridge beams strengthened with new high modulus carbon fiber-reinforced polymer (HM CFRP) materials. The behavior of the beams under overloading conditions and fatigue loading condiitons was studied as well as the possible presence of shear lag at the interface of the steel surface and the CFRP strengthening material. The test results are compared to an analytical model based on the fundamental principles of equilibrium and compatibility, to predict the behavior of the strengthened steel-concrete coomposite beams. Based on the findings of this research work, combined with other work in the literature, a design guideline is proposed for the use of HM CFRP for strengthening the steel flexural members typically used for bridges and structures.
Fatigue and overloading behavior of steel-concrete composite flexural members strengthened with high modulus CFRP materials
Due to corrosion and the continuous demand to increase traffic loads, there is a need for an effective system which can be used to repair and/or strengthen steel bridges and structures. This paper describes an experimental program, recently completed, to investigate the fundamental behavior of steel-concrete composite scaled bridge beams strengthened with new high modulus carbon fiber-reinforced polymer (HM CFRP) materials. The behavior of the beams under overloading conditions and fatigue loading condiitons was studied as well as the possible presence of shear lag at the interface of the steel surface and the CFRP strengthening material. The test results are compared to an analytical model based on the fundamental principles of equilibrium and compatibility, to predict the behavior of the strengthened steel-concrete coomposite beams. Based on the findings of this research work, combined with other work in the literature, a design guideline is proposed for the use of HM CFRP for strengthening the steel flexural members typically used for bridges and structures.
Fatigue and overloading behavior of steel-concrete composite flexural members strengthened with high modulus CFRP materials
Dawood, M. (author) / Rizkalla, S. (author) / Sumner, E. (author)
Journal of Composites for Construction ; 11 ; 659-669
2007
11 Seiten, 11 Bilder, 4 Tabellen, 15 Quellen
Article (Journal)
English
Befestigungselement , Biegefestigkeit , Brücke (Bauwerk) , Brückenbau , carbonfaserverstärkter Kunststoff , Dachziegel , Ermüdungsfestigkeit , Festigkeitserhöhung , Grenzflächenverhalten , Korrosionsfestigkeit , Literaturangabe , mechanisches Bauelement , numerische Analyse , Reparatur , Reparaturmaterial , Stahlbeton , Träger (Bauwesen) , Überlastung , Zugmodul
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