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关于混凝土蜗壳的结构应力计算,由于形体复杂,迄今只有近似的,不够完善的计算理论和方法。例如把复杂的空间蜗壳结构当作平面框架进行计算;或是在上述一系列径向框架外,又假定存在有一与之正交的水平环形梁,用结构力学方法根据二个系统相交点的位移相容条件求解位移及应力。也有将蜗壳分成几块,每块都视作与其实际轮廓相近的环形顶板和园筒组成的结构,按板壳理论计算。现有的结构整体模型试验,在消除模型初应力、加荷和量测手段上还存在着误差,也难
With regard to the structural stress calculation of concrete volute, due to the complex shape, so far only approximate, not perfect calculation theory and method. For example, a complex space volute structure can be calculated as a plane frame. Or, outside of the above series of radial frames, it is assumed that there is an orthogonal horizontal ring beam, which is constructed by structural mechanics according to the intersection of two systems Displacement and stress are solved by displacement compatible conditions. There are also divided into several volutes, each block is considered as its actual contour similar to the annular roof and cylinder structure, according to the shell theory calculations. The existing structural overall model test, there are still errors in the elimination of initial stress, loading and measuring means, it is difficult