CFRP筋钢筋混凝土剪力墙自复位性能试验研究

摘要

One shear wall totally reinforced with steel bars and the other four shear walls partly or totally reinforced by CFRP bars in the longitudinal direction were tested under the reversed cyclic loading.Based on the analysis of the crack width,crack distribution and lateral deformation of the five shear walls,the influence rules of the reinforcement methods of partly or totally reinforced by CFRP bars on the self-centering performance such as residual crack and residual deformation of reinforced concrete shear walls were researched.The results showed that the crack loads of the shear walls with CFRP bars were lower than that of reinforced concrete shear wall.The shear walls with CFRP bars had more cracks and more extensive crack distribution.The maximum crack widths,residual crack widths and residual deformations decreased by 60%,70%,and 90%,respectively,which indicated the shear walls reinforced by CFRP bars had excellent self-centering performance.%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。