Contrast Study of Wind Load Characteristics for Transmission Towers Based Foreign Standards

doi:10.11930/j.issn.1004-9649.2013.4.37.5

Abstract

Abstract: With the complex interaction between wind and structure, transmission towers belong to wind-sensitive structures and the wind load becomes the main problem in structure design. With the increase of transmission line projects undertaken abroad, to accurately understand the wind load specifications in foreign standards is a fundamental and key step for designing transmission towers. In this paper, an analysis is conducted on the calculation principles of wind load for towers in different international transmission line codes (including ASCE74-2009, IEC60826 and BS EN50341), and a calculation method for tower wind load was obtained. Based on a typical transmission tower, the wind loads of the tower body and cross-arm were calculated respectively in accordance with foreign standards. Meanwhile, the wind load distribution characteristics of structural layers were analyzed and compared with those calculated with Chinese standards. The wind load characteristics of transmission towers in foreign standards obtained in this study may be referred in the design of wind loads for transmission towers in foreign countries.

Key words: transmission tower, wind load, foreign specification, comparative analysis, distribution characteristics

CLC Number:

TM75

PAN Feng, CHEN Jia-miao, NIE Jian-bo, GUO Yong, YING Jian-guo. Contrast Study of Wind Load Characteristics for Transmission Towers Based Foreign Standards[J]. Electric Power, 2013, 46(4): 37-42.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2013.4.37.5

https://www.electricpower.com.cn/EN/Y2013/V46/I4/37

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