国内外输电线路规范中角钢局部稳定设计的比较研究  

Comparative Study on Design Methods for Local Stability of Angle Steel in Transport Lines Nation and Overseas

作　　者：徐彬[1] 冯衡[1] 

机构地区：[1]中南电力设计院,湖北武汉430071

出　　处：《电力勘测设计》2012年第1期60-66,共7页Electric Power Survey & Design

摘　　要：为了借鉴国外的先进经验,也为了国内工程设计人员正确的使用国外设计规范,选取十本国内外输电线路相关规范,对各规范中角钢肢的宽厚比限值以及屈曲后强度的计算公式的理论背景和来源,进行了系统的分析。选取工程常用的Q235、Q345和Q420钢,对各规范角钢肢的屈曲后强度进行了定量对比,并提出初步建议。所得结论可供工程设计人员参考。In order to learn from foreign advanced experience,also for the domestic engineering designer proper use of the foreign design specification,ten internal and external transmission lines related standards were elected,and in which the theoretical background and derivation process of calculation formulas of width-to-thickness ratio limitation and postbuckling strength were systematically analysised.To Q235、Q345 and Q420 common steel as examples,quantitative contrast of postbuckling strength were done,and some suggestions were presented.The conclusions might be as reference for the engineering designers.

关 键 词：角钢 局部稳定 宽厚比限值 屈曲后强度 

分 类 号：TM75[电气工程—电力系统及自动化]