Seismic Response Analysis of Tower-Foundation-Soil Dynamic Interaction in Transmission Line Engineering

Abstract:

Considering the contact effect between foundation and soil, the dynamic interaction model of tower-foundation-soil coupled system is set up with visco-elastic artificial boundary as the soil boundary. The seismic time history response of a tower-foundation-soil system under three different site conditions is calculated, and compared with the results that do not consider the effect of tower-foundation-soil dynamic interaction. It shows that the displacement of tower and the axial stress of the members substantially increased on soft sites and medium soft sites while no significant change on medium hard sites and hard sites when tower-foundation-soil dynamic interaction is considered. Therefore, it is suggested that the tower-foundation-soil dynamic interaction should be considered in aseismic design of transmission tower on soft sites and medium soft sites.

• Periodical: Advanced Materials Research (Volumes 1065-1069)
• Pages: 1112-1116
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1065-1069.1112
• Online since: December 2014
• Authors: Yan Zhang*, Zhu Bing Zhu, Zi Xia Feng, Xi Yu Xu
• Keywords: Dynamic Interaction, Time History Analysis, Transmission Line, Visco-Elastic Boundary

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