中国电力2017，Vol.50Issue(3)：107-112,6.DOI:10.11930/j.issn.1004-9649.2017.03.107.06
六边形输电塔体型系数与风荷载计算
Shape Coefficient and Wind Load Calculation of Hexagonal Transmission Tower
摘要
Abstract
The hexagonal tower is rarely applied to transmission lines,and further studies are needed on the rationality of the shape coefficient of hexagonal tower represented by that of quadrilateral tower.For this purpose,two kinds of hexagonal transmission tower models with different solid ratio are established for a series of aerostatic force wind tunnel tests.Based on the test results,the change law of shape coefficient versus wind angles ranging from 0° to 120° is studied.Furthermore,the influences of shape coefficient difference between the hexagonal tower and quadrilateral tower on the calculated tower wind loads are discussed.The study shows that under the wind axis,the shape coefficient of hexagonal tower hexagonal tower presents a period of 60 degrees with the maximum value occurring at the wind angles of 10° and 45°.It is concluded that under the condition of the hexagonal tower shape coefficient being accurately measured,the traditional wind load calculation method used for quadrilateral tower is still applicable to the hexagonal transmission tower,but the calculated wind load of hexagonal transmission tower based on the code-provided shape coefficient is on the risk side with the wind angles ranging within 0～ 15°.关键词
输电杆塔/风荷载/体型系数/风洞试验/六边形塔Key words
transmission tower/wind load/shape coefficient/wind tunnel test/hexagonal transmission tower分类
信息技术与安全科学引用本文复制引用
张宏杰,李正,杨风利,韩军科,宫博..六边形输电塔体型系数与风荷载计算[J].中国电力,2017,50(3):107-112,6.基金项目
国家自然科学基金资助项目(51508537) （51508537）
国家电网公司科技资助项目(极端环境条件下强风区输电线路风荷载特性和铁塔结构研究) （极端环境条件下强风区输电线路风荷载特性和铁塔结构研究）
This work is supported by National Natural Science Foundation of China (No.51508537) and Science and Technology Project of SGCC (Study on wind load and steel tower structure of transmission line in strong wind region under extreme environment condition). （No.51508537）
