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FRP片材加固混凝土梁是一种新型的加固方法,对FRP施加预应力,不仅可以充分利用FRP的强度,还能有效地改善加固梁的受力性能,进一步抑制梁的变形和裂缝的开展。体外预应力FRP片材加固混凝土结构近几年来在国外得到了广泛的研究与应用。在此介绍了近期国内外体外预应力FRP片材加固领域的最新研究情况,对体外预应力FRP片材加固在该领域的优势和前景、目前存在的问题和今后发展的方向等方面进行了总结,可为今后开展相关的研究和应用提供借鉴和参考。
FRP sheet reinforced concrete beam is a new type of reinforcement method. Prestressed FRP can not only make full use of the strength of FRP, but also effectively improve the mechanical properties of the reinforced beam and further suppress the deformation and crack propagation. External prestressed FRP sheet reinforced concrete structures in recent years abroad have been widely studied and applied. This paper introduces the latest research on the field of FRP sheet reinforcement at home and abroad recently, summarizes the advantages and prospects of the FRP sheet reinforcement in this field, the current problems and future development direction , Which can provide reference and reference for future research and application.