周晓峰  董石麟  周家伟  杨  晔
    （浙江大学  杭州 310027）

[提要]  系统详尽地介绍了折板网壳的基本造型、结构形式和支承方式，并对设计、施工中需注意的要点做了说明。针对四边形正交正放四角锥折板网壳进行了自振特性计算，并进行了参数分析，研究了当结构厚度、屋面坡度以及支承方式等发生变化后对这种结构动力性能的影响，为工程人员全面地把握折板网壳的设计提供了依据。
[关键词]  折板网壳  空间结构  动力性能

Hy-rib pyramid lattice shell synthesizes the merits both of spatial truss and lattice shell, so it will be widely applied in practical projects. The configuration and geometric composition of hy-rib pyramid lattice shell are introduced.  Moreover, the dynamic properties are analyzed considering the influence of the different thickness or degree of shell, different support structure. Some valuable conclusions are obtained, which can provide a reference to civil engineering.
Keywords: hy-rib pyramid lattice shcll; spatial structurc; dynamic propcrtics