摘要
本文有计划地对４００余例实际尺寸的单层球面网壳进行了非线性全过程分析，求得了它们的极限承载力，系统地考察了初始缺陷和荷载不对称分布对网壳性能的影响。通过这种大规模参数分析方法，掌握了单层球面网壳稳定性能的规律性。
A comprehensive parametric analysis of stability behavious of single layer latticed domes with various geometric parameters (span, raise span ratio, member cross section, etc.) has been carried out based upon accurate nonlinear complete process analysis. More than 400 examples of real latticed domes with spans in a range from 40m to 70m and with raise span ratios in a range from 1/8 to 1/2 are analyzed and initial imperfections and possible unsymmetrical action of loads are studied systematically, and the plentiful results obtained are thoroughly studied. As a result, practical formulas for predicting critical loads of real latticed dome structures, which are very simple for application but based upon “accurate” theory, are proposed.
出处
《空间结构》
CSCD
1997年第3期3-12,共10页
Spatial Structures
