摘要
叉筒网壳是由圆柱面网壳交贯而成的新型网壳结构,有谷线式(“帽檐”式)和脊线式(“瓜瓣”式)两类曲面,两类曲面可根据柱面网壳的杆件布置方式形成各种网格形式.本文首先对各种网格形式的单层叉筒网壳的内力与变形进行比较,继而选取三角形网格Ⅰ型进行了详细的参数分析和几何非线性分析,总结了单层叉筒网壳的受力特性.
Latticed Intersected Cylindrical Shell （LICS） is a new type of latticed shell formed by intersecting of two or more cylindrical shells. LICS can be classified into valley style and ridge style. According to the grid forms of cylindrical shell, single-layer LICS can be constructed by various structural forms. In this paper, the internal force and displacement of LICS with different grid forms was studied and compared first. Then the parameter analysis and geometrical nonlinear analysis before buckling was carried out for the special LICS with triangle Ⅰ grid. The structural behavior of single-layer LICS was concluded finally.
出处
《空间结构》
CSCD
北大核心
2006年第1期24-31,共8页
Spatial Structures
关键词
单层叉筒网壳
网格形式
几何非线性
屈曲分析
single-layer latticed intersected cylindrical shell （LICS）
grid forms
geometrical nonlinear
buckling analysis
