同济大学学报（自然科学版）2024，Vol.52Issue(7)：1009-1017,9.DOI:10.11908/j.issn.0253-374x.23423
共振型地震表面波屏障设计与性能分析
Design and Performance Analysis of Resonant Seismic Surface Wave Barriers
宁少武 1金园园 1施汇斌 2柳占立2
作者信息
- 1. 西安建筑科技大学 土木工程学院,陕西 西安 710055
- 2. 清华大学 航空航天学院,北京 100081
- 折叠
摘要
Abstract
A periodic structure has band-gap characteristics so that the vibrations or waves in the band-gap frequency range cannot propagate in the structure.Based on this concept,an embedded seismic barrier for manipulating Rayleigh surface waves is designed.The influence of the design parameters of the seismic barrier and the constraint conditions between the resonant element and the supporting foundation on the elastic wave dispersion curve and the formation of the bandgaps of seismic surface wave is studied.The results indicate that the embedded seismic metamaterial barrier can form a surface wave band gap in the low frequency region and realize an effective attenuation domain.The constraint conditions between the resonant element and the supporting foundation can significantly alter the band structure of the dispersion curve.Different constraint conditions can affect the formation of the surface wave bandgaps,and even cause the disappearance of the surface wave bandgaps.Thus,in the process of barrier design and implementation,factors,such as friction,that affect the relative movement between the resonant element and the supporting foundation should be considered and rationally designed.关键词
地震超材料/波屏障/表面波/带隙/地震Key words
seismic metamaterial/wave barrier/surface wave/bandgap/earthquake分类
数理科学引用本文复制引用
宁少武,金园园,施汇斌,柳占立..共振型地震表面波屏障设计与性能分析[J].同济大学学报（自然科学版）,2024,52(7):1009-1017,9.
