In this study, four full-scale precast concrete double skin shear walls (PCDSSWs) with different vertical connections (i.e., loop connection and spiral-confined lap connection) and test axial compression ratios (0.09 and 0.23) were designed as emulative shear walls. Low reversed cyclic loading tests were conducted on the PCDSSWs to investigate their seismic performance by comparing with two cast-in-place (CIP) control specimens. The test results revealed that all the shear wall specimens failed in flexural-shear failure mode, and the hysteretic responses and stiffness degradation characteristics of the PCDSSWs were found to be comparable to those of the CIP control specimens. The loading capacity of the PCDSSWs was a little lower (about 1 ~ 11%) than that of the CIP control specimens. The ductility of the PCDSSWs with loop connection was about 10% lower and 17% higher than that of the CIP control specimens under the low and high axial compression ratio, respectively. While, the ductility of the PCDSSWs with spiral-confined lap connection was obviously higher than that of the CIP control specimens (about 13 and 52% higher for the specimens under the low and high axial compression ratio, respectively). At last, a degraded tri-linear restoring force model was developed for PCDSSWs with different vertical connection types.

在这项研究中，四个具有不同垂直连接（即环连接和螺旋约束搭接连接）和测试轴压比（0.09 和 0.23）的全尺寸预制混凝土双皮剪力墙 (PCDSSW) 被设计为模拟剪力墙。通过与两个现浇 (CIP) 控制试样进行比较，对 PCDSSW 进行了低反向循环载荷试验，以研究其抗震性能。试验结果表明，所有剪力墙试件均在弯曲剪切破坏模式下失效，PCDSSW 的滞后响应和刚度退化特性与 CIP 控制试件相当。PCDSSWs 的负载能力比 CIP 控制样品的负载能力略低（约 1 ~ 11%）。在低轴压比和高轴压比下，具有环连接的 PCDSSW 的延展性分别比 CIP 控制试件低 10% 和 17%。同时，具有螺旋约束搭接连接的 PCDSSW 的延展性明显高于 CIP 控制试件（在低轴压比和高轴压比下，试件分别高出约 13% 和 52%）。最后，针对不同垂直连接类型的PCDSSW建立了退化三线恢复力模型。具有螺旋约束搭接连接的 PCDSSW 的延展性明显高于 CIP 控制试件（在低轴压比和高轴压比下，试件分别高出约 13% 和 52%）。最后，针对不同垂直连接类型的PCDSSW建立了退化三线恢复力模型。具有螺旋约束搭接连接的 PCDSSW 的延展性明显高于 CIP 控制试件（在低轴压比和高轴压比下，试件分别高出约 13% 和 52%）。最后，针对不同垂直连接类型的PCDSSW建立了退化三线恢复力模型。