网壳结构的稳定性

STABILITY OF LATTICED SHELLS

通过荷载－位移全过程分析对各种形式网壳结构的稳定性能进行了深入研究。对复杂结构的全过程分析方法作了探讨，通过所完成的２８００余例各式网壳的全过程分析揭示了不同类型网壳结构稳定性能的基本特性，并提出了单层球面网壳、柱面网壳和椭圆抛物面网壳稳定性承载力的实用计算公式。

Stability problems of latticed shells are thoroughly studied by load-deflection complete process analysis. Theoretical studies on complete process analysis for prototype latticed shells as complex structural systems with numerous degrees of freedom are briefly discussed. Varied behavior of latticed shells of different types are introduced on the basis of the results of complete process analysis for more than 2800 prototype latticed shells, based upon which practical formulas for determining critical loads for latticed shells of different types are presented.