调谐液体阻尼器对桩应力影响的振动台实验

通过土 -桩基础 -钢结构 -调谐液体阻尼器 (TLD)模型振动台系列实验 ,分析了在安装TLD前后 ,桩的动应变反应分别随不同的TLD与结构频率比 β、不同地震波以及沿桩深度不同位置等情况下的变化情况 .数据结果显示TLD在减小上部结构振动的同时 ,也会使桩的动力反应减小 ;同时通过对实验数据的分析 ,得到了一系列与这一减小趋势相关的结论 .

Shaking Table Model Experiment for Effect of Tuned Liquid Dampers on Stress of Piles

By studying a series of shaking table model tests of a soil-piles-steel frame-tuned liquid damper model,the variance of the piles' dynamic strains with or without tuned liquid damper (TLD) with respect to the circumstances of variant frequency ratios of tuned liquid damper to the steel frame,the variant seismic waves and the variant point along with the depth of piles are analyzed respectively.The data show that the piles' dynamic responses will be reduced while the vibration of the overground structure is reduced by the TLD.Meanwhile a series of conclusions on this reducing tendency are obtained by analyzing the experimental data.