Paper number 1255

ULTIMATE SHEAR OF BEAMS STRENGTHENED WITH CFRP SHEETS

U. Ianniruberto and M. Imbimbo

Department of Civil Engineering, University of Rome "Tor Vergata"
Via di Tor Vergata 110, 00133, Rome, Italy

Summary

The role of externally applied CFRP sheets in the evaluation of the shear strength of a reinforced concrete element is analyzed. With regard to this an analytical model is developed. It represents an extension of an existing model for the limit analysis of thin-webbed reinforced concrete beams falling in shear. A numerical analysis is performed to investigate on the influence of the mechanical and the geometrical parameters of the composite sheets on the ultimate shear capacity of the RC beams.

Keywords

shear, carbon fiber, ultimate strength, strut-and-tie.