【摘要】 本文提出用子结构法解决具有刚接与铰接混合连接的局部双层网壳结构的几何非线性分析。该法简单方便地对局部双层网壳结构进行线性与非线性分析，能实现稳定性分析的载荷－位移全过程跟踪而无需单独推导刚接、铰接以及一端刚接一端铰接杆单元的弹性刚度矩阵和几何刚度矩阵，而且可以将平面问题与空间问题、刚接与铰接混合连接体系进行统一处理。算例表明，该法对于局部双层网壳结构的统一和整体分析是非常有效的。更多还原

【Abstract】 Abstract The geometrically nonlinear analysis of the Partial Double Layer (PDL) reticulated shell with rigid, pinned or rigid pinned joints was studied in this paper. Sub structure method was employed by dealing the bar with different joining condition as a sole substructure. Examples show that this method is simple and convenient for PDL reticulated shell with mixed joints and is prospective to be developed as a unified approach to structural geometrically nonlinear analysis of frame.更多还原