国内外输电线路铁塔设计安全度的比较  

Comparison of Safety Degrees in Design of Transmission Towers Both in China and Abroad

作　　者：李峰[1] 张友富[2] 侯建国[3] 安旭文[3] 王洪[1] 李彪[2] 

机构地区：[1]中国电力科学研究院,北京市100055 [2]国家电网公司直流建设分公司,北京市100052 [3]武汉大学,武汉市430072

出　　处：《电力建设》2010年第6期19-23,共5页Electric Power Construction

基　　金：国家电网公司科技项目(SGKJJSKF[2008]641号)

摘　　要：引入安全度概念,推导出铁塔安全度计算公式。结合荷载效应比值、国内外标准的风、冰荷载比值等参数,计算得到各国铁塔的设计安全度。结果表明,对于铁塔的设计,我国标准规定的设计安全度与国外标准基本相当。研究成果可为我国输电线路元件的安全设置水平提供参考依据,并且为元件的强度匹配关系的研究做出了铺垫。The conception of safety degree is introduced in this paper and the corresponding calculation formula for safety degree is deduced.Based on the load effect ratios and other parameters such as the ratio of wind and ice loads recommended in both Chinese and foreign standards,a calculation is made of the design safety degrees of transmission towers in various countries.The results show that the safety degrees stipulated by Chinese standards are basically equivalent to that by foreign standards,which can be used as a reference for designing the safety level of various components of transmission lines in China and will provide a basis for study of the matching strength of components.

关 键 词：输电线路 铁塔 安全度 荷载效应 风荷载 冰荷载 

分 类 号：TM75[电气工程—电力系统及自动化]