Shaking Table Testing of a Steel Frame with TL-PD and Simplified Numerical Modeling

DAI Kaoshan, MAO Rifeng, WANG Jianze, LU Zheng

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.

 

Keywords: shaking table test,  structural vibration control,  Tuned Liquid-Particle Damper(TL-PD),  numerical simulation


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