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http://dx.doi.org/10.12989/was.2011.14.5.481

Behavior of self supported transmission line towers under stationary downburst loading  

Darwish, Mohamed M. (March Consulting Associates Incorporation Saskatoon)
El Damatty, Ashraf A. (Department of Civil and Environmental Engineering, The University of Western Ontario London)
Publication Information
Wind and Structures / v.14, no.5, 2011 , pp. 481-498 More about this Journal
Abstract
During the past decade, many electrical transmission tower structures have failed during downburst events. This study is a part of a research program aimed to understand the behaviour of transmission lines under such localized wind events. The present study focuses on assessing the behaviour of self supported transmission line towers under downburst loading. A parametric study is performed to determine the critical downburst configurations causing maximum axial forces for various members of a tower. The sensitivity of the internal forces developing in the tower's members to changes in the downburst size and location was studied. The structural behaviour associated with the critical downburst configurations is described and compared to the behaviour under 'normal' wind loads.
Keywords
downburst; transmission lines; finite element; self-supported transmission towers;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
Times Cited By Web Of Science : 0  (Related Records In Web of Science)
Times Cited By SCOPUS : 0
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