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A platform for research: civil engineering, architecture and urbanism
Steel-Reinforced Grout (SRG) strengthening of shear-critical RC beams
Highlights Nine shear critical RC beams where strengthened using SRG jacketing. The effectiveness of U- and fully-wrapped SRG jackets was investigated. Strength and deformation capacity increased up to 160% and 450%, respectively. Digital Image Correlation confirmed the effectiveness of SRG jacketing. Expressions are proposed for estimating the effective strain of the SRG jacket.
Abstract This paper investigates the effectiveness of Steel-Reinforced Grout (SRG) jackets to strengthen shear critical reinforced concrete (RC) beams. Eleven RC beams were tested in three-point bending. Key parameters of investigation were the strengthening configuration (U- and fully-wrapped jackets), the density of the fabric (1.57 and 4.72 cords/cm) and the number of the strengthening layers (one and two). The test results demonstrated the efficiency of SRG jacketing in increasing both strength (up to 160%) and deformation capacity (up to 450%) of the shear critical beams. Expressions are proposed for estimating the effective strain of the SRG jacket.
Steel-Reinforced Grout (SRG) strengthening of shear-critical RC beams
Highlights Nine shear critical RC beams where strengthened using SRG jacketing. The effectiveness of U- and fully-wrapped SRG jackets was investigated. Strength and deformation capacity increased up to 160% and 450%, respectively. Digital Image Correlation confirmed the effectiveness of SRG jacketing. Expressions are proposed for estimating the effective strain of the SRG jacket.
Abstract This paper investigates the effectiveness of Steel-Reinforced Grout (SRG) jackets to strengthen shear critical reinforced concrete (RC) beams. Eleven RC beams were tested in three-point bending. Key parameters of investigation were the strengthening configuration (U- and fully-wrapped jackets), the density of the fabric (1.57 and 4.72 cords/cm) and the number of the strengthening layers (one and two). The test results demonstrated the efficiency of SRG jacketing in increasing both strength (up to 160%) and deformation capacity (up to 450%) of the shear critical beams. Expressions are proposed for estimating the effective strain of the SRG jacket.
Steel-Reinforced Grout (SRG) strengthening of shear-critical RC beams
Thermou, G.E. (author) / Papanikolaou, V.K. (author) / Lioupis, C. (author) / Hajirasouliha, I. (author)
Construction and Building Materials ; 216 ; 68-83
2019-04-27
16 pages
Article (Journal)
Electronic Resource
English
SRG , FRCM , Jackets , Steel fabric , Mortar , RC beams , Shear , Strengthening