《架空输电线路钢管塔设计技术规定》主要内容

标准编者结合标准《钢管塔架空输电线路钢管塔设计技术规定》DL／T5254--2010（以下简称本标准）编制过程和背景材料，摘要讲解了本标准的主要内容。包括提供了斜材埃菲尔效应的简化计算方法；提出了安全而经济的微风振动控制假定；纠正了荷载规范关于风荷载计算时体型系数的取值错误；提出了可供选择的材料强度等级及注意事项；对钢管塔的计算模型假定进行细化；提出了典型节点的设计方法；对构件计算时的长细比、径厚比及与材料屈强比的控制建立了关系；修改完善了法兰连接计算方法、结合钢管塔的结构特点提出了针对性的构造控制措施等等，供本标准的使用者参考。

Main Content of ＂Technical Regulation of Design for Steel Tubular Tower Structures of Overhead Transmission Line＂

The editor of the standard （（Technical regulation of design for steel tubular tower structures of overhead transmission line）） （DL/T 5254--2010） explained compiling process, related background, and main points. It is included these contents as follows： the simplified analyses idea of the Eiffel effect; the theory and hypothesis of controlling vortex street vibrance; error correction for shape coefficient of LOAD CODE; the steel strength grade is selectable and using note; the computational model of steel tubular tower; the way of designing classical joint; building relation for element＇ s Slenderness Ratio , Diameter-Thickness Ratio and Yield-Strength Ratio of steel; consummating and revising design method of flanges; suggested pertinent textural measure of steel tubular tower structures. It is useful valuable reference for user of this standard.