Steel-Reinforced Grout (SRG) Strengthening of Shear-Critical RC Beams

Thermou, G.E.; Papanikolaou, V.K.; Lioupis, C.; Hajirasouliha, I.

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.

Citation

Thermou, G., Papanikolaou, V., Lioupis, C., & Hajirasouliha, I. (2019). Steel-Reinforced Grout (SRG) Strengthening of Shear-Critical RC Beams. Construction and Building Materials, 216, 68-83. https://doi.org/10.1016/j.conbuildmat.2019.04.259

• Journal Article Type: Article
• Acceptance Date: Apr 27, 2019
• Online Publication Date: May 4, 2019
• Publication Date: Aug 20, 2019
• Deposit Date: Apr 29, 2019
• Publicly Available Date: May 5, 2020
• Journal: Construction and Building Materials
• Print ISSN: 0950-0618
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 216
• Pages: 68-83
• DOI: https://doi.org/10.1016/j.conbuildmat.2019.04.259
• Keywords: SRG; FRCM; Jackets; Steel fabric; Mortar; RC Beams; Shear; Strengthening
• Public URL: https://nottingham-repository.worktribe.com/output/1848348
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S0950061819311481
• Additional Information: This article is maintained by: Elsevier; Article Title: Steel-Reinforced Grout (SRG) strengthening of shear-critical RC beams; Journal Title: Construction and Building Materials; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.conbuildmat.2019.04.259; Content Type: article; Copyright: © 2019 Elsevier Ltd. All rights reserved.