Seismic Performance Research of Transmission Tower in Consideration of the Pile-soil-structure System

2016 2nd International Conference on Mechanical Engineering and Automation Science

机械制造;无线电电子学

Liu, Chuncheng^1 ; Mao, Long^1 ; Wang, Chongyang^1 ; Zha, Chuanming^2

Northeast Dianli University, Institute of Civil Engineering, Jilin, China^1

State Grid of Xinjiang Electric Power Company, Institute of Economic and Technology, Xinjiang, China^2

关键词: Aseismic design;    Coupled systems;    Interaction systems;    Maximum displacement;    Pile-soil;    Seismic load;    Seismic Performance;    Transmission tower;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/157/1/012028/pdf
DOI  :  10.1088/1757-899X/157/1/012028

来源: IOP

【 摘 要 】

The seismic performance of transmission tower in consideration of pile-soil- structure dynamic interaction is researched through numerical simulation. Based on a transmission tower of a specific project, pile-soil-transmission tower coupled system is established. By using the method of time history, the pile-soil- transmission tower system dynamic response under seismic load were calculated, and comparing with the results without considering interaction system. Results show that, after considering interaction of the system, the period of the structure have extended and the mode of the structure lagged. On soft sites, compare with no considering the interaction, the results have a big difference, the relative increment of the maximum displacement at the top of the tower is 39.82%, respectively. Therefore it is suggested that the pile-soil-structure dynamic interaction should be fully considered in aseismic design of transmission tower on soft sites and medium soft sites.