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因风电塔整体结构不沿轴向对称,为明确该结构的受力特性和保证结构安全,采用国外及国内两种数值计算方法对塔筒结构进行了研究,分析风荷载作用下、地震动作用下和风–地震组合作用下的塔体结构的受力差异.在此基础上对塔筒结构进行风–地震组合作用下的不同地震动输入方向的动力响应分析进行研究.结果指出了该状态下对塔筒结构最不利的地震动输入方向以及该作用条件下塔筒结构的薄弱位置为塔筒开口位置.
Because the overall structure of the wind power tower is not symmetrical in the axial direction, in order to clarify the mechanical characteristics of the structure and to ensure the structural safety, the tower structure is studied by two numerical methods abroad and in China. Under the action of wind load, Under the combination of wind and earthquakes.This paper studies the dynamic response of the tower structure subjected to wind-earthquake combined action under different ground motion input directions.The results show that in this state The most unfavorable ground motion input direction of the tower structure and the weak position of the tower structure under this action condition are the tower opening positions.