500kV功果桥水电站送出线路设计风速取值分析

Analysis on Numerable Value of Design Wind Speed in 500kV Gongguoqiao Hydropower Station Transmission Project

风荷载是送电线路的两大基本自然荷载之一。设计风速取值直接关系到线路工程的安全性、经济性以及适用性,设计风速的合理取值有着非常重要的现实意义。本文从设计风速计算密切相关的气象站实测长序列资料计算和地区基本风压反推的设计风速,并结合地貌类型影响、山区风速以及2008年冰灾之后的新规范风荷载等几个方面入手,分析线路设计风速取值,并提出了一些值得进一步研究的问题。

The wind-load is one of the two basic natural transmission load lines.Design wind speed value is directly related to the line engineering safety,economy and applicability,design wind speed and the reasonable value is a very important practical significance.This article from the design wind speed calculation closely related to the meteorological station measured long sequence data to calculate the area of basic wind pressure and thrust reverser design wind speed,and the combination of landform types influence,mountain wind speed and the 2008 ice disaster after the new Standard Wind load and other aspects,analysis of circuit design wind speed value,and put forward some problems worthy of further research.