Table of Contents Author Guidelines Submit a Manuscript
Advances in Civil Engineering
Volume 2017, Article ID 8756019, 9 pages
https://doi.org/10.1155/2017/8756019
Research Article

Parameter Analysis on Wind-Induced Vibration of UHV Cross-Rope Suspension Tower-Line

1The Electric Power Planning & Engineering Institute Co., Ltd., Xicheng District, Beijing 100120, China
2The Civil Engineering Department, University of Chongqing, Shapingba District, Chongqing 400045, China

Correspondence should be addressed to Dengke Yu; moc.ieppe@uykd

Received 6 December 2016; Accepted 24 January 2017; Published 16 February 2017

Academic Editor: John Mander

Copyright © 2017 Xilai Li et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper analyzes the influences of important structural design parameters on the wind-induced response of cross-rope suspension tower-line. A finite element model of cross-rope suspension tower-line system is established, and the dynamic time-history analysis with harmonic wave superposition method is conducted. The two important structural design parameters such as initial guy pretension and sag-span ratio of suspension-rope are studied, as well as their influences on the three wind-induced vibration responses such as tensile force on guys, the reaction force on mast supports, and the along-wind displacement of the mast top; the results show that the value of sag-span ratio of suspension-rope should not be less than 1/9 and the value of guy pretension should be less than 30% of its design bearing capacity. On this occasion, the tension in guys and compression in masts would be maintained in smaller values, which can lead to a much more reasonable structure.