建筑钢结构进展2025，Vol.27Issue(3)：76-83,92,9.DOI:10.13969/j.jzgjgjz.20231017002
Rayleigh波入射下波纹钢管廊动力响应研究
Study on Seismic Response of Corrugated Steel Utility Tunnels Under the Effect of Rayleigh Wave Incidence
摘要
Abstract
A finite element model of soil-structure interaction is implemented in ANSYS to investigate the dynamic response characteristics of a shallowly buried corrugated steel utility tunnel subjected to Rayleigh waves.This paper derives the approximate Rayleigh wave field.The Rayleigh wave input method based on the viscoelastic boundary is utilized to simulate the propagation of Rayleigh wave in soil.The method's dependability is verified through an arithmetic example.The critical content of this paper is the dynamic response characteristics of acceleration,deformation and stress of the utility tunnel under different input excitation waves,which are obtained from a series of nonlinear time-history analyses.The findings indicate a positive correlation between the dynamic response of the utility tunnel and the intensity of the input excitation wave.When considering the vertical symmetry axis of the utility tunnel as the dividing line,the acceleration near the incident point of the Rayleigh wave is primarily influenced by vertical acceleration,while horizontal acceleration dominates on the opposite side.However,there may be exceptions where vertical acceleration is more significant.Despite the impact of a strong earthquake,the deformation and peak stress of the utility tunnel is still minimal,demonstrating its exceptional seismic performance.The findings above serve as a foundation for the computation of seismic design and the practical implementation of corrugated steel utility tunnels in engineering.关键词
综合管廊/钢波纹管/Rayleigh波/土-结相互作用/非线性时程分析/黏弹性边界Key words
utility tunnel/corrugated steel/Rayleigh wave/soil-structure interaction/nonlinear time-history analyze/viscoelastic boundary分类
建筑与水利引用本文复制引用
翁吉辉,李永红..Rayleigh波入射下波纹钢管廊动力响应研究[J].建筑钢结构进展,2025,27(3):76-83,92,9.基金项目
湖南省自然科学基金(2018JJ3867) （2018JJ3867）
