Abstract

This detailed review looks at how carbon fiber-reinforced polymer (CFRP) may be used to improve the flexural capacity of reinforced concrete (RC) beams. It investigates the history, characteristics, and research trends of FRP composites, assesses various flexural strengthening methods utilizing FRP, and addresses the predictive power of finite-element (FE) modeling. The assessment highlights the importance of enhanced design codes, failure mode mitigation, and improved predictive modeling methodologies. It emphasizes the advantages of improving FRP reinforcement levels to meet code expectations and covers issues, such as FRP laminate delamination and debonding. The findings highlight the need of balancing load capacity and structural ductility, as well as the importance of material behavior and failure processes in accurate prediction. Overall, this review offers valuable insights for future research and engineering practice to optimize flexural strengthening with CFRP in RC beams.

中文翻译：

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CFRP 对钢筋混凝土梁弯曲性能影响的最新综述

摘要

本篇详细综述着眼于如何使用碳纤维增强聚合物 (CFRP) 来提高钢筋混凝土 (RC) 梁的抗弯能力。它调查了 FRP 复合材料的历史、特征和研究趋势，评估了利用 FRP 的各种弯曲强化方法，并讨论了有限元 (FE) 建模的预测能力。该评估强调了增强设计规范、故障模式缓解和改进的预测建模方法的重要性。它强调了提高 FRP 加固水平以满足规范期望的优势，并涵盖了 FRP 层压板分层和脱粘等问题。研究结果强调了平衡负载能力和结构延展性的必要性，以及材料行为和失效过程在准确预测中的重要性。总的来说，这篇综述为未来的研究和工程实践提供了宝贵的见解，以优化 RC 梁中 CFRP 的弯曲强化。