The tuned liquid multiple column damper (TLMCD) is a variation of the tuned liquid column damper (TLCD) that includes multiple vertical columns. A new damping system that embeds TLMCDs within reinforced concrete shear wall systems, termed tuned liquid wall damper (TLWD), is proposed, augmenting the traditional structural component with energy dissipation capabilities. The objective of this study is to assess energy mitigation and strength trade-offs in designing TLWDs and demonstrating the promise of TLWD systems in tall buildings through vertically distributed applications. This is done by investigating the performance of the proposed TLWD through the finite element model (FEM) of a simplified representation of a 42-story building equipped with the multifunctional component. A strength model for the TLWD is developed to empower faster performance evaluation on more complex models. Results from the FEM are used to validate the strength model and show that the model could be used conservatively in assessing strength performance. Design considerations are discussed based on the simplified representation. In particular, to improve mitigation performance while maintaining strength, it is found that a single-layer arrangement of the vertical columns is preferred, while distributing the inertia among a higher number of smaller columns. The proposed TLWD is numerically evaluated on a more realistic system consisting of a multi-degrees-of-freedom representation of the 42-story building under stochastic wind excitation. Simulation results demonstrate that the TLWD, used in a vertically distributed configuration through the building, could be used to mitigate vibrations, outperforming a traditional TLCD system with geometric constraints under 20 design wind realization. Results from the numerical simulations also confirmed the design considerations established through the simplified representation.

中文翻译：

---

装有可调液体多柱阻尼器的钢筋混凝土剪力墙的数值研究与设计

可调液体多塔阻尼器（TLMCD）是包含多个垂直塔的可调液体塔阻尼器（TLCD）的变体。提出了一种将TLMCD嵌入钢筋混凝土剪力墙系统中的新型阻尼系统，称为调谐液壁阻尼器（TLWD），从而通过消能功能增强了传统的结构部件。这项研究的目的是评估在设计TLWD时的节能和强度折衷，并通过垂直分布的应用来证明TLWD系统在高层建筑中的应用前景。这是通过对配备多功能组件的42层建筑物的简化表示形式的有限元模型（FEM）来研究拟议TLWD的性能来完成的。开发了TLWD的强度模型，以在更复杂的模型上实现更快的性能评估。FEM的结果用于验证强度模型，并表明该模型可以保守地用于评估强度性能。基于简化表示讨论了设计注意事项。特别地，为了在保持强度的同时提高缓解性能，发现优选竖立柱的单层布置，同时在更多数量的较小列之间分配惯性。拟议的TLWD在一个更现实的系统上进行了数值评估，该系统由随机风激励下的42层建筑物的多自由度表示组成。仿真结果表明，TLWD 在整个建筑物中以垂直分布配置使用时，可用于减轻振动，优于在20种设计风能下具有几何约束的传统TLCD系统。数值模拟的结果也证实了通过简化表示建立的设计考虑。