Abstract The seismic responses of precast concrete structure are studied under the earthquake excitations, by applying the shaking table test on the 12-storey, two-bay, 1/5 scale monolithic prefabricate concrete shear wall structure (MPCSWS), which is designed with the Chinese codes and assembled by the precast elements and cast-in-place boundary elements in the laboratory. The model MPCSWS is subjected to a series of dynamic tests with increasing intensities. The phenomena of the MPCSWS are observed from the shaking table test, including the dynamic characteristics, accelerations, displacements, global hysteresis responses, torsion responses and failure mechanism. Test results indicate that the MPCSWS shows the equivalent connections with no visible cracks under the frequent and basic ground motions, and then the weak connections appear cracks to consume the earthquake energy. Meanwhile, the bidirectional accelerations, displacements, energy dissipations and torsion responses increase with the increasing of seismic excitations, whereas, the effective stiffness decrease. Furthermore, the connections mainly affect the initial frequency and plastic behavior of global structure, especially, the distribution of seismic responses under the strong earthquakes. It is recommended that the cast-in-place boundary elements effectively constraint the precast elements in the elastic stage in MPCSWS. And the theoretical model of connections under the shear-compression loading should be further studied to conduct the finite element analysis of structure to understand the collapse mechanism.

中文翻译：

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整体式预制混凝土剪力墙结构全局双向抗震性能研究

摘要 通过振动台试验研究了预制混凝土结构在地震激励下的地震响应，该结构采用了12层、2间、1/5比例的整体式预制混凝土剪力墙结构（MPCSWS）。中文代码，由预制构件和现浇边界构件在实验室组装。MPCSWS 模型经受了一系列强度不断增加的动态测试。从振动台试验中观察到 MPCSWS 的现象，包括动态特性、加速度、位移、全局滞后响应、扭转响应和失效机制。测试结果表明，在频繁和基本的地面运动下，MPCSWS 显示出等效连接，没有可见裂缝，然后弱连接出现裂缝以消耗地震能量。同时，随着地震激励的增加，双向加速度、位移、能量耗散和扭转响应增加，而有效刚度降低。此外，连接主要影响全球结构的初始频率和塑性行为，特别是强震下地震响应的分布。建议现浇边界单元在 MPCSWS 弹性阶段有效约束预制单元。并应进一步研究剪压荷载作用下连接的理论模型，对结构进行有限元分析，了解倒塌机理。双向加速度、位移、能量耗散和扭转响应随着地震激励的增加而增加，而有效刚度减小。此外，连接主要影响全球结构的初始频率和塑性行为，特别是强震下地震响应的分布。建议现浇边界单元在 MPCSWS 弹性阶段有效约束预制单元。并应进一步研究剪压荷载作用下连接的理论模型，对结构进行有限元分析，了解倒塌机理。双向加速度、位移、能量耗散和扭转响应随着地震激励的增加而增加，而有效刚度减小。此外，连接主要影响全球结构的初始频率和塑性行为，特别是强震下地震响应的分布。建议现浇边界单元在 MPCSWS 弹性阶段有效约束预制单元。并应进一步研究剪压荷载作用下连接的理论模型，对结构进行有限元分析，了解倒塌机理。此外，连接主要影响全球结构的初始频率和塑性行为，特别是强震下地震响应的分布。建议现浇边界单元在 MPCSWS 弹性阶段有效约束预制单元。并应进一步研究剪压荷载作用下连接的理论模型，对结构进行有限元分析，了解倒塌机理。此外，连接主要影响全球结构的初始频率和塑性行为，特别是强震下地震响应的分布。建议现浇边界单元在 MPCSWS 弹性阶段有效约束预制单元。并应进一步研究剪压荷载作用下连接的理论模型，对结构进行有限元分析，了解倒塌机理。