Some aspects of CFRP steel structures reinforcement in civil engineering

摘要

The FRP materials application in various branches of technology is under examination for at least for about half a century. In civil engineering the most attention was given to practical aspects of FRP application for RC (reinforced concrete) elements strengthening. As for steel structures there is much less done in this field, high elastic modulus of steel being one of the critical points for this delay. Bonding between the adherents represents another problem point when dealing with the FRP reinforcement of steel structures. In RF there are few works concerning this problem. In this paper the case of axial tension is considered and formulae for the ultimate bonding layer length and other parameters are given with worked numerical examples. Also some prospects of application of CFRP in building are discussed.