Structural behavior of reinforced concrete columns strengthened with textile reinforced concrete
Volume Title: ICASGE2025
Paper ID : 1038-ICASGE-FULL
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Abstract
Textile reinforced concrete (TRC) is a composite material made by embedding high-strength textile fabrics into a cement-based matrix. TRC offers several advantages, including high strength-to-weight ratio, improved ductility, ease of application, and resistance to corrosion. TRC can be applied to reinforced concrete (RC) columns using different techniques, such as external wrapping, near surface mounting, and jacketing. TRC has emerged as a promising solution for enhancing the torsional behavior of RC columns, this paper presents numerical investigation on the failure mechanism and ultimate capacity of square RC column strengthened with TRC under combined action of bi-axial shear and torsion. The model set-up for a simply-supported column under one point loading is introduced in this study by applying eccentric load to the column. This requires applying one concentrated load to produce the complicated bi-axial shear and torsional loading. The main parameters are the magnitude of torsion induced to specimens which is relatively represented by the torsion-to-shear ratio, Number of textile layers, orientation of textile reinforcement, In addition, the influence of torsion on ultimate capacity of reinforced concrete with different ratio of two shears is investigated. TRC has proved to offer a promising solution for strengthening RC columns. Its high strength, ductility, and durability make it a reliable choice for enhancing the load-carrying capacity and seismic performance of existing structures. However, careful design and proper implementation are essential to ensure the compatibility, effectiveness, and long-term performance of TRC-strengthened RC columns.
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