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Open AccessArticle
Novel Frame-Type Seismic Surface Wave Barrier with Ultra-Low-Frequency Bandgaps for Rayleigh Waves
by
Hui Jiang
Hui Jiang 1,
Chunfeng Zhao
Chunfeng Zhao 1,2,*,
Yingjie Chen
Yingjie Chen 1 and
Jian Liu
Jian Liu 1
1
College of Hydraulic and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China
2
College of Civil Engineering, Hefei University of Technology, Hefei 230009, China
*
Author to whom correspondence should be addressed.
Buildings 2024, 14(8), 2328; https://doi.org/10.3390/buildings14082328 (registering DOI)
Submission received: 18 June 2024
/
Revised: 18 July 2024
/
Accepted: 25 July 2024
/
Published: 27 July 2024
Abstract
Seismic surface waves carry significant energy that poses a major threat to structures and may trigger damage to buildings. To address this issue, the implementation of periodic barriers around structures has proven effective in attenuating seismic waves and minimizing structural dynamic response. This paper introduces a framework for seismic surface wave barriers designed to generate multiple ultra-low-frequency band gaps. The framework employs the finite-element method to compute the frequency band gap of the barrier, enabling a deeper understanding of the generation mechanism of the frequency band gap based on vibrational modes. Subsequently, the transmission rates of elastic waves through a ten-period barrier were evaluated through frequency–domain analysis. The attentional effects of the barriers were investigated by the time history analysis using site seismic waves. Moreover, the influence of the soil damping and material damping are separately discussed, further enhancing the assessment. The results demonstrate the present barrier can generate low-frequency band gaps and effectively attenuate seismic surface waves. These band gaps cover the primary frequencies of seismic surface waves, showing notable attenuation capabilities. In addition, the soil damping significantly contributes to the attenuation of seismic surface waves, resulting in an attenuation rate of 50%. There is promising potential for the application of this novel isolation technology in seismic engineering practice.
Share and Cite
MDPI and ACS Style
Jiang, H.; Zhao, C.; Chen, Y.; Liu, J.
Novel Frame-Type Seismic Surface Wave Barrier with Ultra-Low-Frequency Bandgaps for Rayleigh Waves. Buildings 2024, 14, 2328.
https://doi.org/10.3390/buildings14082328
AMA Style
Jiang H, Zhao C, Chen Y, Liu J.
Novel Frame-Type Seismic Surface Wave Barrier with Ultra-Low-Frequency Bandgaps for Rayleigh Waves. Buildings. 2024; 14(8):2328.
https://doi.org/10.3390/buildings14082328
Chicago/Turabian Style
Jiang, Hui, Chunfeng Zhao, Yingjie Chen, and Jian Liu.
2024. "Novel Frame-Type Seismic Surface Wave Barrier with Ultra-Low-Frequency Bandgaps for Rayleigh Waves" Buildings 14, no. 8: 2328.
https://doi.org/10.3390/buildings14082328
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