Abstract
In this paper, we propose a new seismic metamaterial (SM) that can cover the main frequency range of earthquakes by introducing curved boundaries on a square cross-section and reducing the contact area between adjacent cells, which results in a wide bandgap at very low frequencies. The vibration modes at the edge of the first bandgap are analyzed, and the effects of the geometric and material parameters of the rubber on the first bandgap are studied. Meanwhile, vibration experiments are performed. Finally, finite structural dynamics response analysis is performed. The results show that the structure has excellent damping performance in low frequency band. At the same time, it can achieve effective attenuation for Oroville, Gilroy, and Corralitos earthquakes, which has potential applications in the field of seismic isolation and attenuation of buildings.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
