A review on the effectiveness of FRP and hybrid wrappings for strengthening concrete columns

IF 7.9 Q1 ENGINEERING, MULTIDISCIPLINARY

Results in Engineering Pub Date : 2025-06-30 DOI:10.1016/j.rineng.2025.106023

Azzam Ahmed

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Abstract

This review investigates the effectiveness of fibre-reinforced polymer (FRP) and hybrid wrappings in enhancing the axial compressive performance of concrete columns. It focuses on various FRP types, such as CFRP, GFRP, BFRP, and AFRP, as well as their configurations (full, partial, and hybrid). A systematic analysis covers mechanical performance, confinement efficiency, and recent advancements in analytical and finite element models. The review critically compares some selected design-oriented and analysis-oriented stress–strain models, categorizing them based on their applicability to fully and partially confined concrete. Emphasis is placed on low-strength concrete applications and novel hybrid systems. Unlike previous reviews, this study integrates recent experimental data, advanced modelling developments, and hybrid confinement systems into a unified framework, offering a comprehensive and practical resource for selecting and optimizing FRP confinement strategies, particularly for low-strength and partially confined concrete, thus addressing critical gaps in both research and design applications.

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玻璃钢与复合包裹材料加固混凝土柱的效果综述

本文综述了纤维增强聚合物（FRP）和混合包裹材料在提高混凝土柱轴压性能方面的有效性。它侧重于各种FRP类型，如CFRP， GFRP， BFRP和AFRP，以及它们的配置（全，部分和混合）。系统的分析包括力学性能，约束效率，以及分析和有限元模型的最新进展。本文对一些选定的以设计为导向和以分析为导向的应力-应变模型进行了批判性的比较，并根据它们对完全和部分约束混凝土的适用性对它们进行了分类。重点放在低强度混凝土应用和新型混合系统。与之前的评论不同，本研究将最新的实验数据、先进的建模发展和混合约束系统整合到统一的框架中，为选择和优化FRP约束策略提供了全面而实用的资源，特别是对于低强度和部分约束的混凝土，从而解决了研究和设计应用中的关键空白。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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