曹  资  薛素铎  王  垫  王雪生
    （北京工业大学建筑工程学院  100022）

[提要]  通过大量计算机分析，给出了在各种不同矢跨比、长跨比、厚跨比和波宽情况下，单层与双层柱面网壳基本频率数值表格与变化曲线图，由此得出网壳基频随各参数的变化规律。设计人员可根据工程几何参数直接由曲线图表得到各网壳基频，使用简便、计算快速，可满足工程精度要求。
[关键词]  柱面网壳  基频  设计图表

Based on large number of computer analyses,the variations of fundamental frequencies of both single-layer and doublelayer cylindrical lattice shells with various structural parameters are investigated, from which practical design charts of the fundamental frequencies are obtained. These charts are very simple to use. The designer can convenlently obtain the value of the fundamental frequency just in terms of basic structural parameters.
Keywords:  cylindrical lattice shell; fundamental frequency; design charts