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通过对1片钢筋混凝土剪力墙和4片配有碳纤维增强聚合物(CFRP)筋的剪力墙的低周反复荷载试验,在分析试验中测得的裂缝宽度、裂缝的发展和分布形态、侧向变形的基础上,研究了在钢筋混凝土剪力墙的适当位置部分或全部配置CFRP筋对剪力墙的残余裂缝和残余变形等自复位性能的影响规律。研究结果表明:与普通钢筋混凝土剪力墙相比,配有CFRP筋的剪力墙的开裂荷载较低,裂缝较多,裂缝分布分布范围较广,墙体的最大裂缝宽度、残余裂缝宽度和侧向残余变形分别降低了60%、70%和90%,说明在剪力墙中合理配置CFRP筋能使剪力墙具有优异的自复位性能。
Through the low-cycle repeated loading test of one reinforced concrete shear wall and four shear walls equipped with carbon fiber reinforced polymer (CFRP) tendons, the crack width, crack development and distribution pattern measured in the analysis test, Based on the study, the effects of some or all of CFRP tendons on the self-resetting properties such as residual cracks and residual deformation of the shear wall are studied in reinforced concrete shear walls. The results show that the shear walls with CFRP tendons have lower cracking load, more cracks and wider distribution of cracks than the ordinary RC shear walls. The maximum crack width, residual crack width and Lateral residual deformation is reduced by 60%, 70% and 90% respectively, which shows that the CFRP tendons in the shear wall can make the shear wall have excellent self-resetting performance.