This paper presents results of an experimental investigation on un-corroded as well as corroded reinforced concrete (RC) T-beams strengthened in shear with embedded carbon fiber-reinforced polymer (CFRP) rods. It examines the effect of corrosion of internal steel stirrups and strengthening with embedded CFRP bars on the shear behaviour of the tested beams. Numerical predictions suggest that internal steel stirrups with about 11% corrosion level reduced the shear strength by at least 4.5%. The embedded CFRP rods enhanced the shear force capacity of the corroded beam by at least 5.4%. Neither the corroded steel stirrups nor the embedded CFRP rods had significant effect on the stiffness of the beams. However, the strengthened beams had narrower, more distributed cracks compared to the corresponding unstrengthened beams.
|Number of pages
|Published - Feb 2014
|4th International fib Congress - Mumbai, India
Duration: 10 Feb 2014 → 13 Feb 2014
|4th International fib Congress
|10/02/14 → 13/02/14