A novel method for bamboo scrimber strengthening timber beams with anchorage structures was proposed. Bamboo scrimber was adhered to the bottom of the timber beam and anchored with carbon fiber-reinforced polymers (CFRPs) or wooden pins. Through the bending tests of eight reinforced beams and two control beams, the effects of different forms of anchorage and thicknesses of bamboo scrimber on the strengthening effect of timber beams were studied. The failure characteristics of the timber beams were observed, and the ultimate load, stiffness and ductility were analyzed. The results show that the failure modes of timber beams can be divided into bending failure and bending-shear failure and that the timber beams exhibit obvious signs of ductile deformation before failure. The ultimate bearing capacity of the reinforced beams increased by approximately 20%–70%, and the cross-sectional stiffness at the serviceability limit state increased by approximately 40%–160%. The test results confirm that CFRPs and wooden pins can firmly adhere to the timber beam and bamboo scrimber, so the bamboo scrimber strengthening timber beams with anchorage structures can substantially increase the ultimate bearing capacity and stiffness and improve the ductility of the member.

提出了一种利用锚固结构加固木的新方法。将竹刻线器粘附到木梁的底部，并用碳纤维增强聚合物（CFRP）或木钉固定。通过对八个加固梁和两个控制梁的弯曲试验，研究了不同形式的锚固方式和竹的厚度对木梁加固效果的影响。观察了木梁的破坏特性，分析了极限荷载，刚度和延性。结果表明，木梁的破坏模式可分为弯曲破坏和弯曲剪切破坏，并且在破坏前，木梁具有明显的延性变形迹象。增强梁的极限承载力增加了大约20％–70％，在使用极限状态下的截面刚度增加了大约40％–160％。测试结果证实，CFRP和木钉可以牢固地粘附在木梁和竹板上，因此具有锚固结构的竹木strengthening加固木梁可以大大增加构件的极限承载力和刚度，并提高其延展性。