- 摘 要
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（1 中國地震局工程力學研究所， 中國地震局地震工程與工程振動重點實驗室， 哈爾濱 150080； 2 中國電力科學研究院有限公司， 北京 100055； 3 國網(wǎng)浙江省麗水供電公司， 麗水 323000; 4 中國電建集團福建省電力勘察設計院有限公司， 福州 350003； 5 北京工業(yè)大學建筑工程學院， 北京 100022）
［摘要］采用諧波合成法(WAWS)生成脈動風速時程，并根據(jù)輸電鐵塔結(jié)構(gòu)的空間結(jié)構(gòu)特點生成輸電鐵塔的脈動風振荷載，利用有限元軟件PowerTower和ANSYS進行輸電鐵塔結(jié)構(gòu)的強風仿真分析，研究了不同風速、風向和阻尼比情況下輸電鐵塔結(jié)構(gòu)的風振響應。研究結(jié)果表明，隨著風速的提高，輸電鐵塔的位移和軸力響應不斷變大，風速的大小、風向?qū)旊婅F塔結(jié)構(gòu)的響應影響很大，阻尼比對輸電鐵塔結(jié)構(gòu)的響應影響較小。
［關(guān)鍵詞］輸電鐵塔； 強風； 諧波合成法； 仿真分析
中圖分類號：TM753文獻標識碼：A文章編號：1002-848X(2018)13-0039-06
Strong wind simulation of transmission tower structures
Wang Fei1,2, Han Junke2, Wang Cancan3, Wang Changzhi2, Weng Lanxi4, Zhou Yangyang4, Fang Hao5
(1 Key Laboratory of Earthquake and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China; 2 China Electric Power Research Institute, Beijing 100055,China; 3 State Grid Lishui Power Supply Company, Lishui 323000, China; 4 Power China Fujian Electric Power Survey & Design Institute Co., Ltd., Fuzhou 350003,China; 5 College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100022， China)
Abstract:The weighted amplitude wave superposition method（WAWS）was used to simulate wind speed time series, and the pulsating wind vibration load was generated according to the characteristic of the spatial structure of the transmission tower. The finite element programs Power Touer and ANSYS were used to conduct strong wind simulation analysis of transmission tower structure. The wind-induced vibration responses of the transmission tower under different wind speed, wind direction and damping ratio were studied. The results show that with the increase of wind speed, the displacement and axial force response of the transmission tower become larger and larger. The wind speed and wind direction greatly influence the response of the transmission tower structure. The influence of damping ratio on the response of the transmission tower structure is small.
Keywords:transmission tower; strong wind; WAWS; simulation analysis
*國家電網(wǎng)有限公司科技項目“鋼管混凝土輸電桿塔設計及施工技術(shù)研究”(GCB17201600064)。
作者簡介：王飛，博士研究生，工程師，Email:499422978@qq.com。
