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《Journal of Northeast Dianli University》 2011-Z1
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Effects of Diaphragm on Wind Resistant Design of Power Transmission Towers

XIAO Qi1,WANG Yong-jie1,XIAO Mao-xiang2,LIU Jian-bo3 (1.Architecture Engineering College,Northeast Dianli University,Jilin Jilin 132012; 2.Tianjin Power Company Tianjin 300010; 3.China Petroleum Jilin Chemical &Engineering Construction Co.Ltd,Jilin Jilin 132021)  
Numerical simulation is used in this paper to study effects of diaphragm on wind resistant design of power transmission towers.Firstly,using 'Kaimal' wind speed spectral changed with height and 'Devenport' correlation function,then combining with WAWS to simulate the wind field around lines.Secondly,many models about transmission line system at different cross section are established in ANSYS,and made analysis about dynamic characteristic and time history of wind-induced response.The results show that rational allocation of cross section in design can avoid early appearance of local modal shapes of transmission towers,effectively restrain the out-plane deformation of sprag,and reduce the force of main member.Then the wind resistance performance of transmission tower is further improved.
【CateGory Index】: TM753
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