Published: Građevinar 76 (2024) 1
Paper type: Scientific research paper
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Periodic structure as seismic barriers

Julin Wang


Some seismic barriers are periodic structures with the characteristic of frequency band gaps (BGs) similar to sonic crystals, which can protect buildings from damage caused by earthquakes. Their working idea is to arrange periodic structures in the foundation around the buildings you want to protect, and the seismic wave is blocked outside the buildings when the frequencies of seismic waves exactly fall in the frequency BGs of the seismic barriers. Based on sonic crystal, a periodic structure is first presented here, which not only can be utilised as seismic barriers but also has a large internal space to provide the possibility for other functions such as civil air defence construction, line access, etc. The frequency BGs of the presented structure are determined by the spectral element method, and the influence of geometrical parameters and the number of unit cells on the frequency BGs is analysed. Numerical calculation confirms that the proposed structure can effectively isolate some seismic waves.

seismic waves, vibration isolation, requency band gaps, spectral element method, periodic structures


Wang, J.: Periodic structure as seismic barriers, GRAĐEVINAR, 76 (2024) 1, pp. 1-8, doi:


Wang, J. (2024). Periodic structure as seismic barriers, GRAĐEVINAR, 76 (1), 1-8, doi:


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Julin Wang WEB
Julin Wang
Shanxi Architectural College, China
Institute of Building Structures