Design-oriented models for concrete columns confined by steel-reinforced grout jackets

Thermou, Georgia E.; Hajirasouliha, Iman

Abstract

© 2018 Elsevier Ltd This paper investigates the axial stress–strain response of concrete confined with Steel-Reinforced Grout (SRG) jackets comprising of Ultra High Tensile Strength Steel (UHTSS) textiles embedded in an inorganic binder. Brittle, semi-ductile and ductile stress–strain response curves are identified according to the level of confinement stiffness provided by the SRG jackets. A comprehensive experimental database of 80 SRG-confined columns is developed and used to assess the influence of key design parameters. The results are then used to propose new design-oriented models to predict the strength and ultimate strain of SRG confined concrete columns by taking into account the confinement stiffness of the jackets.

Citation

Thermou, G. E., & Hajirasouliha, I. (2018). Design-oriented models for concrete columns confined by steel-reinforced grout jackets. Construction and Building Materials, 178, 313-326. https://doi.org/10.1016/j.conbuildmat.2018.05.088

• Journal Article Type: Article
• Acceptance Date: May 9, 2018
• Online Publication Date: May 26, 2018
• Publication Date: Jul 30, 2018
• Deposit Date: Nov 19, 2018
• Journal: Construction and Building Materials
• Print ISSN: 0950-0618
• Electronic ISSN: 1879-0526
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 178
• Pages: 313-326
• DOI: https://doi.org/10.1016/j.conbuildmat.2018.05.088
• Keywords: Confinement model; Concrete; Steel Fabric; Inorganic matrix; Mortar; SRG Jackets; Seismic strengthening
• Public URL: https://nottingham-repository.worktribe.com/output/1283575
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S0950061818311553?via%3Dihub