Combined Attenuation Zones of Combined Layered Periodic Foundations

Layered periodic foundations (LPFs) with identical unit cells have been proposed as a type of seismic metamaterials due to the unique dynamic characteristic attenuation zones. However, it is difficult design zones both comparatively low starting frequencies and large bandwidths for traditional LPFs cells. In this paper, combined layered (CLPFs) are by combining two different in tandem. Combined CLPFs identified investigating frequency response functions CLPFs. The generation mechanism was studied varying configuration results show that union LPFs. To verify efficiency CLPFs, responses four-story frame structure CLPF simulated. present work very helpful bandwidth.