（1 武汉理工大学土木工程与建筑学院， 武汉 430070； 2 中国能源建设集团广东电力设计研究院， 广州 510000）

［摘要］在水平风荷载作用下，以工程实际输电塔为研究对象，基于准定常气动力假设，通过非线性有限元数值模拟的动力时程计算，着重考察了不同类型杆塔在不同高度和不同风速下风荷载的风振系数。对国际典型规范的风振系数公式取值进行比较和解析，并通过数值计算结果进行校核分析。研究为我国输电塔结构抗风设计规范的合理修订提供一些客观的参考和借鉴。

［关键词］输电杆塔风荷载； 有限元数值模拟； 风振系数； 规范对比

中图分类号：TU973-2文献标识码：A文章编号：1002-848X(2018)13-0049-08

Numerical calculation and specifications comparison of wind-induced vibration coefficient for wind load of transmission tower

Wang Dahai1, Shen Qi1, Zhang Donghong2, Li Kaige1

(1 School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China; 2 Guangdong Electric Power Design Institute, China Energy Engineering Group, Guangzhou 510000, China)

Abstract:Under the action of horizontal wind loads, the actual transmission tower of the project was taken as the research object. Based on the quasi-steady assumption, the wind-induced vibration coefficients of different types of towers under wind loads at different heights and wind speeds were emphatically examined through dynamic time-history calculation of nonlinear finite element numerical simulation. The comparison and analysis of the values of the wind-induced vibration coefficient formulas of the international typical codes were carried out and verified by numerical calculation results. The study provided some objective references for the rational revision of the wind-resistant design code for the transmission tower structure in China.

Keywords:wind load on transmission tower; finite element numerical simulation; wind-induced vibration coefficient; comparison of codes

*国家自然科学基金课题（51478373;51578434）。

作者简介：汪大海，博士，副教授，博士生导师，一级注册结构工程师，Email: wangdahai@whut.edu.cn。