工艺与制造英文2025被引 9
FRP筋和钢-FRP混合复合筋增强混凝土梁：荷载-挠度响应、破坏机制和设计启示
Reinforced Concrete Beams with FRP and Hybrid Steel–FRP Composite Bars: Load–Deflection Response, Failure Mechanisms, and Design Implications
Paulina Dziomdziora, Piotr Smarzewski · Faculty of Civil Engineering and Geodesy, Doctoral School of Military University of Technology, 2 Gen. Sylwestra Kaliskiego, 00-908 Warsaw, Poland
摘要整理
腐蚀问题促使在钢筋混凝土梁中采用传统钢筋的替代品。本综述评估了用于耐久性关键应用的纤维增强复合材料（FRP）筋和钢-FRP混合复合筋（SFCB）。通过系统文献检索（重点关注2010-2025年期间）并纳入2010年前的经典研究作为背景，对实验研究和规范条款进行了筛选，综合分析了荷载-挠度响应、裂缝和破坏特征，并简要涉及超高性能混凝土（UHPC）体系。FRP-RC具有优异的耐腐蚀性，但延性有限，峰值后呈现突然响应。钢筋具有良好延性，破坏前能提供预警。SFCB将耐久性与钢芯延性相结合，呈现逐步软化和更高的能量吸收能力。工程实践应基于刚度-延性-耐久性的权衡选择增强筋。现行规范对混合筋的覆盖不完整。主要研究空白包括：SFCB的标准化粘结-滑移和张拉刚度模型，以及在恶劣环境暴露下长期性能的可靠数据。
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