Abstract The Externally Bonded Reinforcement (EBR) of timber structures with Carbon Fiber Reinforced Polymers (CFRP) is a solution that has been increasing. Like CFRP strengthened concrete structures, it is known that the premature debonding of the CFRP also occurs on timber structures. To study other alternative solutions to the EBR technique, the Near Surface Mounted (NSM) and six other situations with an additional anchorage were considered. A total of 33 single-lap shear tests were carried out. The experimentally obtained load-slip responses, the strains developed in the CFRP strips or the local bond-slip relationships are all reported and discussed. Compared to the EBR technique, the efficiency of each anchorage system and/or bonding technique is also analysed. The current preliminary results suggest that using two superposed metallic L-shape profiles or embedding the CFRP strip into the timber substrate are the best anchorage systems for the reinforcement of a timber structure with CFRP strips. The NSM technique has also led to high load capacities of the CFRP-to-timber interface.

中文翻译：

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木材胶合层状碳纤维增强聚合物不同锚固方案的试验分析

摘要 使用碳纤维增强聚合物 (CFRP) 对木结构进行外部粘合加固 (EBR) 是一种越来越多的解决方案。与 CFRP 加固混凝土结构一样，众所周知，CFRP 的过早脱粘也发生在木结构上。为了研究 EBR 技术的其他替代解决方案，考虑了近表面安装 (NSM) 和其他六种具有附加锚固的情况。共进行了 33 次单搭接剪切试验。实验获得的载荷-滑移响应、在 CFRP 条中产生的应变或局部粘结-滑移关系都被报告和讨论。与 EBR 技术相比，还分析了每个锚固系统和/或粘合技术的效率。目前的初步结果表明，使用两个重叠的金属 L 形型材或将 CFRP 带嵌入木材基材是用 CFRP 带加固木结构的最佳锚固系统。NSM 技术还导致 CFRP 到木材界面的高负载能力。