(State Key Laboratory of Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092,China) 在知网中查找 在百度中查找 在本站中查找
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Abstract:
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.