混合联肢PEC墙结构克服了普通联肢墙地震作用下墙肢底部及混凝土连梁易脆性破坏的缺点，是一种抗震性能优良的两阶段耗能体系。同时，该结构侧向刚度大，构件间易于装配建造。然而针对混合联肢PEC墙结构协同工作机理研究还十分不足，抗震设计方法不明确。本项目以研究该结构体系的协同工作机理、建立地震作用下的力学模型、获得抗震设计对策为目标，拟采用试验研究和理论分析相结合的研究方法。首先分析钢连梁与PEC墙肢刚性节点及整体结构的滞回性能和协同工作机理，综合评价结构抗震性能。进而提出混合联肢PEC墙协同工作的力学模型，构建结构整体失效与构件损伤之间的力学关系。基于力学模型，研究耦连比对结构协同工作机理及失效模式的影响规律，给出结构抗震性能的定量评价标准。最终提出地震作用下混合联肢PEC墙结构合理失效模式控制技术，得到结构抗震性能化设计方法。研究成果对提高该结构体系的抗震性能有重要的理论意义和工程应用价值。

Hybrid coupled PEC wall structure overcomes the shortcomings of brittle failure at the bottom wall and concrete coupling beams under seismic in reinforced concrete coupled shear wall, and is a two-stage energy dissipation system with excellent seismic performance. Meanwhile, the structure has large lateral stiffness, and is easy to assemble between components. However, the research on the cooperative working mechanism of hybrid coupled PEC wall structure is still insufficient, and the seismic design method is undefined. The project is aimed at studying the cooperative working mechanism of the system, establishing the mechanics model under seismic and achieving the seismic design strategy. A research method combining experimental research with theoretical analysis is proposed. Firstly, hysteretic behavior and cooperative working mechanism of rigid joints as well as an integral structure are analyzed, and seismic performance of the structure is evaluated comprehensively. Furthermore, a cooperative working mechanical model of the hybrid coupled PEC wall is proposed, and the mechanistic relationship between the overall failure of the structure and the damage of the component is constructed. Based on the mechanical model, the influence of coupling ratio on the cooperative mechanism and failure modes of the structure is studied, and the quantitative evaluation criteria for seismic performance is given. Finally, the reasonable failure mode control technology of hybrid coupled PEC wall structure under seismic is proposed, and the seismic performance-based design method is obtained. The research results have important theoretical significance and engineering application value for improving the seismic performance of the structural system.