
Structural behaviour of SCC continuous deep beam strengthened with carbon fiber NSM and hybrid techniques
Author(s) -
W. J. Al-Bdari,
Nabeel Al-Bayati,
A. S. Al-Shaarbaf
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/737/1/012026
Subject(s) - rod , materials science , beam (structure) , fibre reinforced plastic , shear (geology) , structural engineering , composite material , reinforced concrete , engineering , medicine , alternative medicine , pathology
In this research, results of an experimental investigation on the shear strengthening of normal SCC continuous concrete deep beam are presented. A total of twelve continuous deep beams were cast and tested. The aim of this paper is to study the effect of carbon fiber reinforced polymers (CFRP|) through Near Surface Mounted (NSM) and hybrid techniques to improve the structural behaviour and shear resistance capacity of deep beams. Two beams were used as control with no strengthening, while the remaining ten beams were strengthened in different (with and without) steel shear reinforcement, orientation of NSM-FRP rods, hybrid techniques (combined of EBR-CFRP strip and NSM-CFRP rods). The beams were designed to fail in shear and to match with the requirements of ACI 318M-14 building code. Results showed that the hybrid technique caused an increase in the load carrying capacity for the deep beams up to 58.5 % when compared to the beams without strengthened control one.