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FOUNDATION STRESSES BELOW A TRIANGULARLY DISTRIBUTED LOAD

机译:三角形分布载荷以下的基础应力

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The square reinforced concrete footing of a wind turbine generator is subjected to a large overturning moment due to wind loading on the tower, nacelle and rotor blades. As a result, and for analysis purposes, the footing can be considered to exert a triangularly distributed contact pressure onto the immediate foundation. For extreme overturning this pressure distribution does not extend over the full area of the footing as some lift off of the footing occurs. A maximum contact pressure occurs along an edge of the footing when the overturning moment vector is parallel to a footing side, called "square overturning" in the following. However the greatest contact pressure occurs under a corner of the square footing when the vector of the overturning moment is parallel to a diagonal of the square footing, called "diagonal overturning" in the following.
机译:由于塔架,机舱和转子叶片上的风荷载,风力涡轮发电机的方形钢筋混凝土基础承受较大的倾覆力矩。结果,出于分析目的,可以考虑将基础施加三角形分布的接触压力到直接基础上。对于极端倾覆,此压力分布不会在基础的整个区域上延伸,因为会发生一些从基础上抬起的情况。当倾覆力矩矢量平行于立足面时,最大的接触压力会沿着立足的边缘发生,以下称为“方形倾覆”。然而,当倾覆力矩的矢量平行于平方根的对角线时,最大的接触压力发生在平方根的拐角下,以下称为“对角倾覆”。

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