seismic response of power transmission tower-line system subjected to spatially varying ground motions

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ID: 181463
2010
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Abstract
The behavior of power transmission tower-line system subjected to spatially varying base excitations is studied in this paper. The transmission towers are modeled by beam elements while the transmission lines are modeled by cable elements that account for the nonlinear geometry of the cables. The real multistation data from SMART-1 are used to analyze the system response subjected to spatially varying ground motions. The seismic input waves for vertical and horizontal ground motions are also generated based on the Code for Design of Seismic of Electrical Installations. Both the incoherency of seismic waves and wave travel effects are accounted for. The nonlinear time history analytical method is used in the analysis. The effects of boundary conditions, ground motion spatial variations, the incident angle of the seismic wave, coherency loss, and wave travel on the system are investigated. The results show that the uniform ground motion at all supports of system does not provide the most critical case for the response calculations.
Reference Key
tian2010mathematicalseismic Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Li Tian;Hongnan Li;Guohuan Liu
Journal journal of power sources
Year 2010
DOI
10.1155/2010/587317
URL
http://dx.doi.org/10.1155/2010/587317
Keywords
civil engineering (general)mathematics engineering (general)

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