Author(s)

L. Frýba, M. Pirner & Sh. Urushadze

Abstract

Carbon fibre reinforced composites (CFRC) have become an increasingly applicable material in civil engineering over the last decades. The advantages of CFRC usage are its high stiffness and strength. The steel and composite interaction was tested on simple beams, which could forestall the development of fatigue cracks. It is projected that the application of this material be applied to real steel bridge construction, especially to repair damages of orthotropic decks. The paper examines the influence of material characteristics with and without CFRC. Orthotropic deck details have been investigated under static and dynamic loads and several theoretical and experimental methods have been applied. The experiments of orthotropic deck details are turned to the crack propagation, stress concentrations and fatigue life. The most vulnerable detail appears in the spatial crossing of the deck with cross girder and longitudinal rib, where the stress concentration appears. The static tests were realised on a real size part of the orthotropic deck. The specimens are loaded by many times the repeated load. Keywords: carbon fibre reinforced composite, orthotropic deck, fatigue life, dynamic load, crack propagation.

Keywords

carbon fibre reinforced composite, orthotropic deck, fatigue life, dynamic load, crack propagation.