摘要
通过对我国GB50545—2010《110～750kV架空送电线路设计技术规范》与国际电工学会规范IEC60826—2003、美国输电线路规范ASCE74—2009、日本输电线路规范JEC127—1979中输电线路设计风荷载的计算公式与各个计算参数设定的比较,在输电线路设计中可以更好理解输电线路风荷载的计算。以1条500kV输电线路的典型铁塔为例,分析了相同设计条件下不同标准计算结果的差别。结果表明我国规范计算的风荷载在数值上与其他三者差别不大,但在各个参数规定上值得进一步讨论。
In order to better understand the wind load calculation in the transmission line design, the calculation formulas of wind load and the setting of calculation parameters were compared among four different design standards ： Technical Code for Designing 110 -750 kV Overhead Transmission Line （GB 50545--2010） in China, IEC 60826--2003, ASCE 74--2009 and JEC 127--1979. Moreover, based on the calculation and comparison of wind load in a real 500 kV project, the differences among the calculation results of different standards were analyzed under the same design condition. The results show that the wind load defined in the China＇s code is little numerical different from those calculated by other codes, however, some parameters are still worthy of further discussion.
出处
《电力建设》
2013年第7期57-62,共6页
Electric Power Construction
基金
国家自然科学基金项目(51278369)
关键词
输电线路
风荷载
设计标准
参数比较
power transmission line
wind load
design standard
parameter comparison
