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本文对四向杆系、三向杆系、两向杆系组成的各种网状球壳,探讨了基于连续化计算模型的拟壳分析法,给出了网壳等代薄膜刚度和抗弯刚度的表达式,建立了轴对称网状球壳拟壳法的一般性基本方程式,并采用薄膜理论加边界效应的分析方法进行计算。文中给出了如何由壳体内力反算各种网状球壳杆件内力的计算公式,文末附有算例。计算表明,这种连续化的拟壳分析法比较方便,手算电算均可。此外,本文还就常用网状球壳的形式和分类作了讨沦。
In this paper, a variety of reticulated spherical shells composed of four-way, three-way and two-way bar systems are discussed. The pseudo-shell analysis method based on the continuous calculation model is discussed, and the stiffness and bending resistance of the reticulated films are given. The expression of stiffness is established, and the general basic equations of the axisymmetric spherical shell pseudo-shell method are established. The thin film theory plus boundary effect analysis method is used to calculate. This paper gives the calculation formula of how to calculate the internal forces of various meshed spherical shell members by the internal force of the shell. Examples are given at the end of this article. The calculations show that this continuous quasi-shell analysis method is convenient and can be calculated by hand. In addition, this article also discusses the form and classification of the commonly used reticulated spherical shells.