This paper explores in detail the velocity correlation of rubber bearings in seismically isolated structures of bridge engineering and its dynamic response under two different levels of earthquakes.How the velocity correlation of three types of rubber bearings with different damping affects the seismic response of seismically isolated bridges under both small and large earthquake conditions is precisely investigated through real-time substructure tests.The results of the study reveal that the velocity correlation produces a significant effect on the response of the building under the large earthquake condition,especially when high damping-ratio bearings are used,which suggests that the velocity correlation of rubber bearings with different damping ratios plays an important role in the seismic response of the whole building.Through the comparison and analysis of the three bearing models,it is found that when comparing the velocity independent model and the velocity correlation model studied in this paper,the latter yields results that are closer to the experimental value.
维普
万方数据
