【摘要】 叉筒网壳由圆柱面网壳交贯而成,局部双层叉筒网壳是介于双层叉筒网壳和单层叉筒网壳之间的网壳结构形式.本文首先提出了三种局部双层网壳的构成方式,继而针对局部双层叉筒网壳的布局特点,对其进行了非线性、线性、刚接、铰接等多种计算模型的比较分析,揭示了双层区域的线性性质和单层区域的非线性性质,进而有的放矢地提出了“非线性-线性联合”这种适合局部双层网壳分析的合理、准确、高效的方法.更多还原

【Abstract】 Latticed Intersected Cylindrical Shell (LICS) is a new type of latticed shell formed by intersecting of two or more cylindrical shells. Partial double-layer LICS is a kind of structural form between double-layer LICS and single-layer LICS. In this paper three patterns of partial double-layer LICS were first proposed,then based on the pattern of partial double-layer LICS, different analysis models of nonlinear, linear, rigid joint and pin joint were compared, and linear property of double-layer region and nonlinear property of single-layer region was disclosed. A nonlinear-linear combined method was put forward with a definite object in view which is a reasonable, accurate and high-efficiency method for analysis partial double-layer LICS.更多还原