RESEARCH ARTICLE
The Collapse Analysis of A Transmission Tower Under Wind Excitation
Li Tian*, 1, Qiqi Yu1, Ruisheng Ma1, Chengwu Wang2
Article Information
Identifiers and Pagination:
Year: 2014Volume: 8
First Page: 136
Last Page: 142
Publisher ID: TOCIEJ-8-136
DOI: 10.2174/1874149501408010136
Article History:
Received Date: 2/4/2014Revision Received Date: 16/7/2014
Acceptance Date: 16/7/2014
Electronic publication date: 06/8/2014
Collection year: 2014
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
The collapse of a transmission tower under wind action is studied in this paper. A three-dimensional finite element model of the transmission tower is established based on a real project. The birth-to-death element technique is adopted in ABAQUS/Explicit. Kaimal fluctuating wind power spectrum and the harmony superposition method are used to simulate the fluctuating wind speed time history. The dynamic behavior and the collapse mechanism of the transmission tower under three different angles of attack α = 0o, 45o and 90o are carried out, respectively. The results show that the collapse of the transmission tower at 45o angle of attack occurs easily, but it is contrary at 90o angle of attack. The fracture position of the transmission tower under wind excitation is obtained, and the initial damage of the members happens simultaneously in the main and the secondary element. The results of the collapse analysis can provide reference to the design of the transmission tower and the reinforcement of this structure to prevent the collapse of the tower.