附加TL-PD的钢框架振动台试验及简化分析

为考察分析TL-PD在地震作用下的减震性能，并比较其与TLD和PD控制效果，将阻尼器安装在5层钢框架顶部，分别对有控和无控结构进行3条天然地震波作用下的振动台试验.试验结果表明：TL-PD具有良好的振动控制效果，对各楼层均有一定的减震作用，位移均方根减震效果最优达到632%，加速度均方根控制最优达到510%.TL-PD改善了TLD对激励敏感的特点，鲁棒性较好，但减震效果在一定程度上还受输入激励特性的影响.提出的TL-PD相对单纯PD装置对颗粒摩擦碰撞有一定的降噪作用.通过理论分析，基于经验模型，提出了TL-PD简化数值模型，可用于TL-PD初步设计的近似模拟.
In order to investigate the vibration mitigation performance of the Tuned Liquid- Particle Damper (TL-PD) during earthquakes，a series of shaking table tests were conducted on a steel frame structure with different damping devices，including Tuned Liquid Damper (TLD)，Particle Damper (PD)，and TL-PD.During the testing，three ground motions were adopted as excitation inputs.Testing results show that the TL-PD has a good vibration suppression effect.The root-mean-square values of displacement and acceleration responses of the structure can be reduced by 63.2% and 50.5% at most，respectively.The TL-PD also shows a better robustness than that of the TLD，although the performance of the TL-PD is still influenced by the ground motion characteristics.Additionally，the TL-PD produced less noise than that of the PD in the tests.Based on empirical model，a mathematical model was developed to capture the behaviors of TL-PD in the preliminary design.