预应力自复位剪力墙，是由预制的混凝土构件通过后张预应力筋连接而成，该类结构在发生较大变形后具有很强的自恢复能力，在强烈地震作用下结构损伤小；而拓扑互锁材料和结构具有局部损伤的高耐受性、可调节的弯曲刚度和承载能力、高冲击能量吸收能力和自复位能力等特点。因此本文将两者优点相结合，提出一种拓扑互锁自复位剪力墙结构，采用拟静力试验和数值模拟的方法，对这一新型结构的抗震性能进行以下研究：
（1）设计和制作性能参数较优的自复位剪力墙试验试件，对其进行低周循环往复加载试验，研究试件的破坏机理、耗能能力、可修复能力，结果表明使用拓扑互锁面连接的剪力墙具有更好的抗震性能，构件的自复位能力得到了提高。
（2）考虑材料非线性和连接面接触非线性的影响，建立拓扑互锁自复位剪力墙构件的 3D 精确实体有限元模型，通过大量的数值计算和抗震性能分析，确定了合理的拓扑互锁面曲面方程。研究了拓扑互锁连接面曲面方程参数对自复位剪力墙滞回性能的影响，并研究了曲面设计参数、剪力墙的弯矩比例值和预应力钢筋的张拉应力对墙体滞回性能的影响；通过数值分析发现，使用拓扑互锁面连接的自复位剪力墙与平面连接的自复位剪力墙相比，力学性能有较大的提高。
（3）研究在地震荷载作用下，使用拓扑互锁面连接的自复位剪力墙结构合理的设计计算模型；研究使用拓扑互锁面连接的自复位剪力墙抗震设计方法和设计流程。通过一栋框架结构抗震加固的计算实例，验证了加设自复位剪力墙能有效减小结构的楼层最大位移、层间位移角、残余位移等地震响应，且能改变结构的变形模式，避免结构底层薄弱层破坏。

关键词：预应力；自复位剪力墙；拓扑互锁；抗震性能；数值分析

The prestressed self-resetting shear wall is made of prefabricated concrete components connected by post-tensioned prestressed tendons. This type of structure has strong selfrecovery ability after significant deformation and minimal structural damage under strong earthquakes. Topological interlocking materials and structures have high tolerance to local damage, adjustable bending stiffness and load-bearing capacity, high impact energy absorption, and self-resetting capabilities. Therefore, this paper combines the advantages of both and proposes a self-resetting shear wall structure based on topological interlocking. The seismic performance of this new structure is studied through quasi-static tests and numerical simulations as follows:
(1) Design and fabricate a self-resetting concrete shear wall test specimen with superior performance parameters. Conduct low-cycle reciprocating loading tests to study the failure mechanism, energy dissipation capacity, and repairability of the specimen. The results show that the shear wall connected by topological interlocking surfaces has better mechanical properties, and the self-resetting ability of the components is improved.
(2) Considering the nonlinearity of materials and the contact nonlinearity of the connection surfaces, a 3D precise solid finite element model of the self-resetting concrete shear wall component with topological interlocking function is established. Through extensive numerical calculations and seismic performance analysis, a reasonable topological interlocking surface curve equation is determined. The study investigates the effect of the topological interlocking connection surface curve equation parameters on the hysteresis performance of the self-resetting shear wall, as well as the influence of the surface design parameters, the bending moment ratio of the shear wall, and the tensile stress of the prestressed tendons on the wall’s hysteresis performance. Preliminary numerical analysis found that the performance of the self-resetting shear wall connected by topological interlocking surfaces is significantly improved compared to the wall connected by planar surfaces.
(3) Study the reasonable design calculation model of the prestressed self-resetting steel-reinforced concrete shear wall structure with topological interlocking function under minor and major earthquakes. Research the seismic design method and design process for the prestressed self-resetting steel-reinforced concrete shear wall with topological interlocking function. Through a computational example of seismic reinforcement of a frame structure, it is verified that the addition of a self-resetting shear wall can effectively reduce the maximum floor displacement, inter-story drift angle, residual displacement, and other seismic responses of the structure. It can also change the deformation mode of the structure and prevent the destruction of the weak layer at the bottom of the structure.