Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Composite action and adhesive bond between fiber-reinforced polymer bridge decks and main girders
In order that FRP bridge decks can be used economically, they must participate in the bridge's longitudinal direction as part of the upper chord of the main girders. This requires a stiff bond between the FRP deck and the main girders. In this respect, adhesive bonding is considered a reliable and economical connection technique. The system experiments were carried out for a pultruded deck system. This paper describes the behavior of adhesively bonded hybrid girders. The main conclusions are as follows: Commposite action between GFRP (glass fiber reinforced polymer) bride decks and steel girders can increase stiffness and capacity and reduce deflections of the hybrid girders considerably. The efficiency of the FRP deck, however, decreases with increasing span. The level of contribution depends on the longitudinal in-plane deck stiffness. The adhesive bond between GFRP bridge decks and steel girders behaved well under quasi-static, creep and fatigue loading. A ductile failure mode was achieved as deck compression failure during yielding of the steel girder. The adhesive bond did not fail and exhibited no damage after ten million fatigue cycles. The main questions that remain concern the behavior of continuous girders and the behavior of the adhesive bond in the transverse direction (out-of-plane tension stresses due to uplift forces and deck fixation), as well as the impact of environmental loads (temperature and humidity).
Composite action and adhesive bond between fiber-reinforced polymer bridge decks and main girders
In order that FRP bridge decks can be used economically, they must participate in the bridge's longitudinal direction as part of the upper chord of the main girders. This requires a stiff bond between the FRP deck and the main girders. In this respect, adhesive bonding is considered a reliable and economical connection technique. The system experiments were carried out for a pultruded deck system. This paper describes the behavior of adhesively bonded hybrid girders. The main conclusions are as follows: Commposite action between GFRP (glass fiber reinforced polymer) bride decks and steel girders can increase stiffness and capacity and reduce deflections of the hybrid girders considerably. The efficiency of the FRP deck, however, decreases with increasing span. The level of contribution depends on the longitudinal in-plane deck stiffness. The adhesive bond between GFRP bridge decks and steel girders behaved well under quasi-static, creep and fatigue loading. A ductile failure mode was achieved as deck compression failure during yielding of the steel girder. The adhesive bond did not fail and exhibited no damage after ten million fatigue cycles. The main questions that remain concern the behavior of continuous girders and the behavior of the adhesive bond in the transverse direction (out-of-plane tension stresses due to uplift forces and deck fixation), as well as the impact of environmental loads (temperature and humidity).
Composite action and adhesive bond between fiber-reinforced polymer bridge decks and main girders
Verbundstoffwirkung und Klebverbindung zwischen Brückendeckplatten aus faserverstärktem Kunststoff und den Hauptträgern
Keller, Thomas (Autor:in) / Gürtler, Herbert (Autor:in)
Journal of Composites for Construction ; 9 ; 360-368
2005
9 Seiten, 15 Bilder, 5 Tabellen, 5 Quellen
Aufsatz (Zeitschrift)
Englisch
Composite Action and Adhesive Bond between Fiber-Reinforced Polymer Bridge Decks and Main Girders
| Online Contents | 2005
Composite Action and Adhesive Bond between Fiber-Reinforced Polymer Bridge Decks and Main Girders
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