Damping Effect of Adjacent Structures Connected with Viscous Dampers Using Shaking Table Test

Abstract

The features of damper connection may affect the structural dynamic responses. In the current study, the shaking table test in a scale of 1/20 was used to investigate the damping effect of adjacent 15- and 7- storey frame-shear wall model structures connected with viscous dampers. The seismic intensity was 7 degree and four levels of seismic excitations (i.e. the frequent, basic, rare and large earthquake ones) were considered. The effects of the damper connection were examined under various levels of the seismic actions and waves. The results show that under the earthquake excitations, the decrease in frequencies and the increase in the damping ratios are relatively coincided; under the frequent and basic earthquake excitations, the acceleration amplification factors of the model structures with the damper connections were controlled in each floor of the mainand sub- structures; under the frequent, basic, and rare earthquake excitations, the displacements of the main- and sub- structures with the damper connections were controlled to some extent.