钢管输电塔塔身及横担角度风分配系数研究  

STUDY ON SKEWED WIND LOAD DISTRIBUTION FACTORS ON TOWER BODY AND CROSS ARM OF STEEL TUBE TRANSMISSION TOWER

作　　者：赵夏双 楼文娟[1] 沈国辉[1] 姚剑锋[1] 梅宇佳[2] ZHAO Xiashuang;LOU Wenjuan;SHEN Guohui;YAO Jianfeng;MEI Yujia(Institute of Structural Engineering,Zhejiang University,Hangzhou 310000,China;Zhejiang Electric Power Design Institute,Hangzhou 310000,China)

机构地区：[1]浙江大学结构工程研究所,杭州310000 [2]浙江省电力设计院,杭州310000

出　　处：《低温建筑技术》2020年第6期63-68,76,共7页Low Temperature Architecture Technology

摘　　要：为研究全方位风作用下不同密实度和宽高比的塔身和横担角度风分配系数。文中以塔身和横担模型进行高频天平测力风洞试验并给出推荐值为设计提供依据。结果表明塔身角度风分配系数规范值在75°风向角下较试验值偏小,在45°风向角下偏大。横担方向角度风分配系数nx与密实度和宽高比相关度较大,为相关研究提供参考。In order to study the effect of density and aspect ratio on skewed wind load distribution factors under full-angle wind,wind tunnel tests of high-frequency balance were carried out on the tower body and cross arm models and the recommended values are given in order to provide a basis for design.The results show that the standard value of the skewed wind load distribution factors of tower body is smaller than the test results at 75°wind direction angle,and larger at 45°wind direction angle.Furthermore,the skewed wind load distribution factors in the transverse direction nx are greatly affected by the density and the aspect ratio.

关 键 词：钢管输电塔 塔身 横担 角度风分配系数 

分 类 号：TU312[建筑科学—结构工程]