美国输电线路风荷载计算介绍  

Introduction of Wind Load Computation of Transmission Line in ASCE74-2009

作　　者：王振华[1] 

机构地区：[1]广东省电力设计研究院,广州510663

出　　处：《特种结构》2012年第4期22-24,32,共4页Special Structures

摘　　要：了解《美国输电线路结构荷载指南》(ASCE74-2009)对从事涉外工程和提高工程师设计水平都有着重要意义。风荷载是输电线路设计的控制荷载,了解ASCE74-2009风荷载计算方法非常有必要。本文介绍了ASCE74-2009输电线路风荷载的计算方法,并对基本风速、风压高度变化系数、体型系数、风荷载调整系数、地形影响因子和斜向风荷载计算方法及其计算参数进行了说明。It is very important to comprehend《Guidelines for electrical transmission line structural loading}（ASCE74-2009） for overseas projects and improve the design level of engineer.Wind load is the control load for transmission line,so it is necessary to master wind load computation method of ASCE74- 2009.Wind load computation formulas for transmission line of ASCE74-2009 are introduced in this paper.The computation parameters of basic wind speed,height variation factor of wind pressure,shape factor,wind load factor,topographic factor and yawed wind load computation method are illustrated in detail.

关 键 词：美国输电线路结构荷载指南 输电塔 导线 风荷载 计算参数 

分 类 号：TM751[电气工程—电力系统及自动化]