摘要
通过选用较优的初应力分布来对最终应力分布进行控制的方式,提出了受力合理且满足建筑要求的自由曲面网壳目标壳面的生成方法,并对半球形网壳壳面算例进行了分析,结果表明:初应力均布时,所得最终应力的均匀性最佳;初应力布置时,对环向应力和边缘应力同时进行加强,最终径向应力与环向应力的协同性最佳。
By controlling the final stress distribution through selecting the optimal initial stress distribution, the configuration generating method of the shell surface was proposed for latticed shells satisfying the mechanical and architectural requirements. Case study of hemispherical shell surface showed that：when the distribution of the initial stress is uniform, the uniformity of the final stress is the best, while the radial stress and the stress at the edge are strengthened, the corresponding between the radial stress and the circumferential stress is optimum.
出处
《山西建筑》
2014年第9期25-26,共2页
Shanxi Architecture
关键词
自由曲面
网壳结构
壳面
应力控制
free form surface, lattice shells, shell surface, stress control
