我国输电线路铁塔结构设计可靠度研究  

Research on Reliability of Transmission Tower Structure Design in China

作　　者：李峰[1] 袁骏[2] 侯建国[3] 安旭文[3] 

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,北京市100031 [3]武汉大学,武汉市430072

出　　处：《电力建设》2010年第11期18-23,共6页Electric Power Construction

基　　金：国家电网公司科技项目(SGKJJSKF[2008]641号)

摘　　要：在已收集到的国内冰、风荷载统计资料的基础上,建立了冰、风荷载的概率统计模型;采用一次二阶矩法,对我国输电线路铁塔结构设计的可靠度进行了计算分析。结果表明,我国铁塔结构构件的设计可靠度水平基本能够达到目标可靠度指标的要求。研究成果可为研究我国输电线路元件的安全设置水平提供参考依据,为进一步深入研究元件的强度匹配关系奠定了基础。A statistical model is established based on the statistical data of transmission tower’s ice and wind load in China.The Integrate-FOSM is used to analyze the reliability design of transmission tower structure in China.The result indicates that the reliability design level of tower structure of China’s codes can basically meet the requirement of target reliability indices.This research result can be used as a reference for determining the safety level of transmission structures in China and it also provides a basis for a further study of the corresponding strength requirement of structure components.

关 键 词：输电线路 铁塔 可靠度 概率统计 风荷载 冰荷载 

分 类 号：TM753[电气工程—电力系统及自动化]