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（1 武漢理工大學(xué)土木工程與建筑學(xué)院， 武漢 430070； 2 中國能源建設(shè)集團(tuán)廣東電力設(shè)計(jì)研究院， 廣州 510000）

［摘要］在水平風(fēng)荷載作用下，以工程實(shí)際輸電塔為研究對(duì)象，基于準(zhǔn)定常氣動(dòng)力假設(shè)，通過非線性有限元數(shù)值模擬的動(dòng)力時(shí)程計(jì)算，著重考察了不同類型桿塔在不同高度和不同風(fēng)速下風(fēng)荷載的風(fēng)振系數(shù)。對(duì)國際典型規(guī)范的風(fēng)振系數(shù)公式取值進(jìn)行比較和解析，并通過數(shù)值計(jì)算結(jié)果進(jìn)行校核分析。研究為我國輸電塔結(jié)構(gòu)抗風(fēng)設(shè)計(jì)規(guī)范的合理修訂提供一些客觀的參考和借鑒。

［關(guān)鍵詞］輸電桿塔風(fēng)荷載； 有限元數(shù)值模擬； 風(fēng)振系數(shù)； 規(guī)范對(duì)比

中圖分類號(hào)：TU973-2文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：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

*國家自然科學(xué)基金課題（51478373;51578434）。

作者簡(jiǎn)介：汪大海，博士，副教授，博士生導(dǎo)師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email: wangdahai@whut.edu.cn。