Estimation of efficiency of damping parameters in seismic insulation systems

Abstract

In the design of seismic isolation systems, one of the key and most difficult issues is the damping optimal parameters choice. If the damping is negligible, it is possible (at a certain frequency of external influence) that quasi-resonant processes, which lead to the disappearance of seismic insulation effect, will emerge. If the damping forces are large, it entails a significant load increase on the protected object, which also reduces the effect of seismic insulation.Development technique of plastic dampers analytic dependence «force-displacement» executed as linear or nonlinear quarter circle cores is presented in the research. These dependences are applied to choose rational parameters of pendular type of seismic insulation system damping.

Keywords

• damping
• plastic dampers
• force characteristic
• dynamic analysis
• seismic insulation