A Parametric Study of Nonlinear Seismic Response Analysis of Transmission Line Structures

A parametric study of nonlinear seismic response analysis of transmission line structures subjected to earthquake loading is studied in this paper. The transmission lines are modeled by cable element which accounts for the nonlinearity of the cable based on a real project. Nonuniform ground motions...

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Main Authors: Li Tian, Yanming Wang, Zhenhua Yi, Hui Qian
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1155/2014/271586
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author Li Tian
Yanming Wang
Zhenhua Yi
Hui Qian
author_facet Li Tian
Yanming Wang
Zhenhua Yi
Hui Qian
author_sort Li Tian
collection DOAJ
description A parametric study of nonlinear seismic response analysis of transmission line structures subjected to earthquake loading is studied in this paper. The transmission lines are modeled by cable element which accounts for the nonlinearity of the cable based on a real project. Nonuniform ground motions are generated using a stochastic approach based on random vibration analysis. The effects of multicomponent ground motions, correlations among multicomponent ground motions, wave travel, coherency loss, and local site on the responses of the cables are investigated using nonlinear time history analysis method, respectively. The results show the multicomponent seismic excitations should be considered, but the correlations among multicomponent ground motions could be neglected. The wave passage effect has a significant influence on the responses of the cables. The change of the degree of coherency loss has little influence on the response of the cables, but the responses of the cables are affected significantly by the effect of coherency loss. The responses of the cables change little with the degree of the difference of site condition changing. The effect of multicomponent ground motions, wave passage, coherency loss, and local site should be considered for the seismic design of the transmission line structures.
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institution Kabale University
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publishDate 2014-01-01
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spelling doaj-art-e8578dc19159422e93b9cc8224c675532025-02-03T05:59:30ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/271586271586A Parametric Study of Nonlinear Seismic Response Analysis of Transmission Line StructuresLi Tian0Yanming Wang1Zhenhua Yi2Hui Qian3School of Civil and Hydraulic Engineering, Shandong University, Jinan 250061, ChinaSchool of Civil and Hydraulic Engineering, Shandong University, Jinan 250061, ChinaSchool of Civil and Hydraulic Engineering, Shandong University, Jinan 250061, ChinaSchool of Civil Engineering, Zhengzhou University, Zhengzhou 450001, ChinaA parametric study of nonlinear seismic response analysis of transmission line structures subjected to earthquake loading is studied in this paper. The transmission lines are modeled by cable element which accounts for the nonlinearity of the cable based on a real project. Nonuniform ground motions are generated using a stochastic approach based on random vibration analysis. The effects of multicomponent ground motions, correlations among multicomponent ground motions, wave travel, coherency loss, and local site on the responses of the cables are investigated using nonlinear time history analysis method, respectively. The results show the multicomponent seismic excitations should be considered, but the correlations among multicomponent ground motions could be neglected. The wave passage effect has a significant influence on the responses of the cables. The change of the degree of coherency loss has little influence on the response of the cables, but the responses of the cables are affected significantly by the effect of coherency loss. The responses of the cables change little with the degree of the difference of site condition changing. The effect of multicomponent ground motions, wave passage, coherency loss, and local site should be considered for the seismic design of the transmission line structures.http://dx.doi.org/10.1155/2014/271586
spellingShingle Li Tian
Yanming Wang
Zhenhua Yi
Hui Qian
A Parametric Study of Nonlinear Seismic Response Analysis of Transmission Line Structures
The Scientific World Journal
title A Parametric Study of Nonlinear Seismic Response Analysis of Transmission Line Structures
title_full A Parametric Study of Nonlinear Seismic Response Analysis of Transmission Line Structures
title_fullStr A Parametric Study of Nonlinear Seismic Response Analysis of Transmission Line Structures
title_full_unstemmed A Parametric Study of Nonlinear Seismic Response Analysis of Transmission Line Structures
title_short A Parametric Study of Nonlinear Seismic Response Analysis of Transmission Line Structures
title_sort parametric study of nonlinear seismic response analysis of transmission line structures
url http://dx.doi.org/10.1155/2014/271586
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