Application of one-dimensional periodic layers with elastomeric seismic isolators for three-dimensional isolation

SR Kumawat, M Kumar, A Laskar - Structures, 2024 - Elsevier
Abstract Three-dimensional (3D) seismic isolation is an appealing idea to protect structures
and their components from earthquake-induced horizontal and vertical ground motions. Past …

Nonlinear dynamic analysis of torsionally coupled isolated structures

S Chowdhury - Practice Periodical on Structural Design and …, 2021 - ascelibrary.org
A simple yet accurate approach to evaluate the seismic performance of a torsionally coupled
multistory building isolated by nonlinear isolators and subjected to strong ground motions is …

Numerical Simulation of Damping Performance of Elastically Supported Underground Arch Structures Subject to Penetration and Explosion

Y Yuan, H Sun, Z Chen, E Bai… - Advances in Civil …, 2022 - Wiley Online Library
To reduce the damage of earth penetrators on underground fortifications against blast and
fragmentation penetration, a model of underground arch structure with elastic support was …

A periodic seismic isolation foundation with an extremely broad low-frequency attenuation zone: Theoretical analysis and experimental verification

P Zhou, S Wan, X Wang, Y Zhu… - Advances in Structural …, 2022 - journals.sagepub.com
The attenuation zones (AZs) of periodic structures can be used for seismic isolation design.
To cover the dominant frequencies of more seismic waves, this paper proposes a new type …

Meta-Material Layout for the Blast Protection of Above-Ground Steel Pipes

M Kontogeorgos, C Fuggini - Geotechnics, 2023 - mdpi.com
The current study investigates the capacity of the proposed meta-material layout for the blast
protection of above-ground steel pipes against explosions. The philosophy of the meta …

Frequency-dependent viscoelasticity effects on the wave attenuation performance of multi-layered periodic foundations

M Safi, M Vakilifard, MJ Mahmoodi - Applied Mathematics and Mechanics, 2024 - Springer
In this paper, layered periodic foundations (LPFs) are numerically examined for their
responses to longitudinal and transverse modes in the time and frequency domains. Three …

Stability improvement for response attenuation of bridge columns with one dimensional meta-material based isolation systems

S Jain, S Pujari, A Laskar - Earthquakes and Structures, 2023 - koreascience.kr
The concept of meta-material-based isolation systems (MMIS) for structural columns has
been revisited in the present study in order to enhance the stability of rubber pads by using …

Numerical Study on One-Dimensional Aperiodic Foundations for Seismic Isolation of Structures

SR Kumawat, S Pujari, M Kumar, A Laskar - Symposium in Earthquake …, 2022 - Springer
The concept of frequency band gaps in the wave propagation physics of crystalline solids
has suggested the possibility of attenuating and filtering seismic waves with the provision of …

Effect of Periodic Unit Cell Volume on Attenuation Zones of 1D-Meta-material based Periodic Foundations

S Kumawat, S Pujari, M Kumar, A Laskar - 2023 - repo.nzsee.org.nz
The meta-material-based periodic foundations are being investigated by researchers for
earthquake engineering applications due to their wave-filtering ability. The periodic …

Attenuation Zones of Combined Periodic Foundations with Different Combination Patterns

X Liu, Y Ren, X Song, Y Ji - IOP Conference Series: Earth and …, 2021 - iopscience.iop.org
One-dimensional periodic foundations with single-size unit cells are difficult to possess
attenuation zones with both low frequencies and wide bandwidths. Combined one …