Comparison of acceleration damping rate.

The design of tuned mass damper (TMD) parameters is influenced by the soil-structure-TMD coupling system; thus, it is important to consider the soil-structure interaction (SSI) for the vibration control effect of the TMD. Recently, the acquisition of TMD parameters considering soil-structure interactions has only remained at the theoretical stage, lacking relevant experimental verification. Traditional TMD face the problems of occupying a large building space, increasing construction costs, and non-replaceable components. In this study, an assembled wall-type damping TMD was designed. By comparing the dynamic response of the uncontrolled and controlled structures equipped with the newly assembled wall-type damping TMD in the shaking table test on a soft soil foundation, we analyzed whether the SSI effect was considered in the TMD design parameters on the damping effect of the newly assembled wall-type tuned mass damper. The TMD parameters optimized using the artificial intelligence algorithm were verified experimentally. The results indicated that the traditional TMD design parameters were discordant because the SSI effect was not considered. The SSI effect in the soil effectively reduces the dynamic response of the superstructure. By considering the SSI effect and improving the multi-population genetic algorithm, a wall-type damping TMD with optimized parameters can achieve a good damping effect.

调谐质量阻尼器（Tuned Mass Damper, TMD）参数的设计受土-结构-TMD耦合体系影响，因此在评估TMD的减振效果时，考虑土-结构相互作用（Soil-Structure Interaction, SSI）具有重要意义。目前，考虑土-结构相互作用的TMD参数获取仍仅停留在理论阶段，缺乏相关实验验证。传统调谐质量阻尼器存在占用建筑空间大、增加建造成本以及构件不可更换等问题。本研究设计了一种装配式墙式阻尼TMD。通过在软土地基上开展振动台试验，对比安装新型装配式墙式阻尼TMD的受控结构与未受控结构的动力响应，分析了TMD设计参数中是否考虑土-结构相互作用效应对该新型装配式墙式调谐质量阻尼器减振效果的影响。本研究对通过人工智能算法优化得到的TMD参数开展了实验验证。研究结果表明，由于未考虑土-结构相互作用效应，传统TMD的设计参数存在不协调问题。土体中的土-结构相互作用效应可有效降低上部结构的动力响应。通过考虑土-结构相互作用效应并改进多种群遗传算法，参数优化后的墙式阻尼TMD可实现良好的减振效果。