NDLI: Impact Analysis of Wind Direction upon Wind Load on Tower Line in Mountainous Microtopography

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Impact Analysis of Wind Direction upon Wind Load on Tower Line in Mountainous Microtopography

Content Provider	Scilit
Author	Zhang, Hongjie Yang, Fengli Zhou, Qiang Weng, Lanxi Su, Zhigang
Copyright Year	2018
Description	Journal: Iop Conference Series: Earth and Environmental Science When transmission lines pass through microtopographic area, the acceleration effect of wind speed should be taken into consideration during designing. However, the acceleration ratio coefficient of wind speed should not be selected simply according to mountain slope as specified by standards. In order to comprehensively consider the impact of wind direction and microtopography upon acceleration ratio of wind speed. This paper selects the acceleration ratios of wind speed at the height of 10m-120m in a tower position at 24 angles of direction wind by virtue of CFD simulation analysis. Combined with the line trend, this paper compares and calculates the change rule of wind loads on tower body and lead/ground wires after considering the pre/post-impact of acceleration ratio of wind speed. Through analysis, this paper forms suggestions on wind-resistant design for lead/ground wires in transmission lines in microtopographic area as well as accident analysis for reference.
Related Links	https://iopscience.iop.org/article/10.1088/1755-1315/170/4/042047/pdf http://iopscience.iop.org/article/10.1088/1755-1315/170/4/042047/pdf
ISSN	17551307
e-ISSN	17551315
DOI	10.1088/1755-1315/170/4/042047
Journal	Iop Conference Series: Earth and Environmental Science
Issue Number	4
Volume Number	170
Language	English
Publisher	IOP Publishing
Publisher Date	2018-07-17
Access Restriction	Open
Subject Keyword	Journal: Iop Conference Series: Earth and Environmental Science Civil Engineering Wind Loads On Tower
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences Physics and Astronomy Environmental Science

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