Publication

Through-thickness performance of adhesive joints between FRP bridge decks and steel girders

Thomas Keller, Martin Schollmayer
2009
Journal Articles

Résumé

The through-thickness performance of adhesive joints between pultruded FRP bridge decks and steel girders was investigated experimentally and numerically. Through- thickness tensile stresses occur due to uplift forces caused by the load-bearing behavior of the bridge deck transverse to the bridge axis. The tensile stress distribution in the adhesive joint is non-uniform with high stress concentrations below the FRP webs of the cellular deck. The joint ultimate loads could be accurately predicted based on stress concentration factors from FEA and FRP through-thickness tensile strength values obtained from small-scale coupon tests. The total safety factor of the joint was higher than the safety factor of the FRP deck for bending between the main girders. Fatigue loading up to 10 million cycles showed no stiffness degradation. © 2008 Elsevier Ltd. All rights reserved

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https://infoscience.epfl.ch/entities/publication/e04e5830-941d-4c0c-a16a-c99d020ae3b7

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Thomas Keller, Martin Schollmayer
2009
Journal Articles

Résumé

Source officielle

https://infoscience.epfl.ch/entities/publication/e04e5830-941d-4c0c-a16a-c99d020ae3b7

À propos de ce résultat

Concepts associés (21)

Concentration de contrainte

thumb|La fissure dans le béton a été amorcée par un « effet de pointe » (concentration de contrainte). La concentration de contrainte est un phénomène survenant lorsque la section d'une pièce varie de manière brutale : trou (perçage), rainure, épaulement, gorge, fond de fissure, etc. Une pièce présente des points de fragilité dus à la forme. On constate que l'apparition des fissures, et la rupture, a en général lieu dans des zones présentant des angles vifs rentrants ou bien des perçages.

Pont

vignette|Pont permettant le passage de la ligne C du métro de Rotterdam, à Capelle-sur-l'Yssel (Pays-Bas). vignette|Pont sur la rivière Moyka à Saint-Pétersbourg, Russie Un pont est un ouvrage d'art qui permet de franchir un obstacle naturel ou artificiel (dépression, cours d'eau, voie de communication, vallée, ravin, canyon) en passant par-dessus. Le franchissement supporte le passage d'humains et de véhicules dans le cas d'un pont routier, ou d'eau dans le cas d'un aqueduc.

Tablier (pont)

A deck is the surface of a bridge. A structural element of its superstructure, it may be constructed of concrete, steel, open grating, or wood. Sometimes the deck is covered by a railroad bed and track, asphalt concrete, or other form of pavement for ease of vehicle crossing. A concrete deck may be an integral part of the bridge structure (T-beam or double tee structure) or it may be supported with I-beams or steel girders. When a bridge deck is installed in a through truss, it is sometimes called a floor system.

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