电力勘测设计Issue(2)：22-27,6.DOI:10.13500/j.dlkcsj.issn1671-9913.2024.02.005
基于±800kV特高压直流输电线路的中美规范风荷载对比研究
Comparative Study on Wind Load Between Chinese and American Codes Based on±800 kV UHV DC Transmission Line
罗永磊 1赵峥 1杨光耀1
作者信息
- 1. 中国电力工程顾问集团华东电力设计院有限公司,上海 200063
- 折叠
摘要
Abstract
This article mainly studied the Chinese and American design codes of±800 kV UHV transmission line,which refers to the analyzes of wind load comprehensively from the aspects of importance coefficient,partial coefficient,MRI and design condition.Meanwhile,the basic wind speed,topography and height factors,wind load shape coefficient and dynamic characteristics are intensive studied.Then compared the Chinese codes with American codes of wind load calculation based on the typical±800 kV UHV transmission project,the wind load of wire and tower body in the American code are higher than those in the Chinese code,but the design value of line wind load is less than about 30%of that in the Chinese code.The total design value of tower body wind load(the sum of all wind pressure sections)is basically the same as that in the Chinese code.Combined with the calculation and analysis of typical tower,it is found that the overall design level of wind load in the American code is about 23%lower than that in the Chinese code.关键词
特高压/中美规范/输电线路/风荷载Key words
UHV/ultra high voltage/Chinese and American codes/transmission line/wind load分类
动力与电气工程引用本文复制引用
罗永磊,赵峥,杨光耀..基于±800kV特高压直流输电线路的中美规范风荷载对比研究[J].电力勘测设计,2024,(2):22-27,6.
