王敬烨¹，刘文武²

（1 中国京冶工程技术有限公司，北京 100088；2 中国铁道科学研究院铁道建筑研究所，北京 100081）

 

[摘要] 研究了贝壳面的几何造型方法，并以应变能最小为目标对贝壳形曲面进行形状优化。从工程实际的角度出发，对贝壳形网壳的基本静力性能和静力稳定性能进行了研究，考察了初始缺陷、不均匀荷载分布、支承条件等因素对结构性能的影响，并给出了相应的设计建议。结果表明贝壳面是一种良好的空间结构自由曲面形式。

[关键词] 结构形态；造型；形状优化；贝壳面；静力稳定性

中图分类号：TU33    文献标识码：A    文章编号：1002-848X(2012)12-0069-05

 

Wang Jingye-, Liu Wenwu²

(1 China Jingye Engineering Corporation Limited, Beijing 100088, China; 2 China Academy of Railway Sciences, Beijing 100081, China)

 

Abstract: The geometrical model method of the seashell was studied. According to the strain energy minimization, the seashell-shaped surface was optimized. For the practical application, the static mechanical behaviors and static stability behaviors of seashell-shaped space structures were studied. The effects of initial geometrical imperfections, unsymmetrical distribution of loads and supporting conditions were discussed. And the design recommendations were given for these situations. The results show that the seashell-shaped surface is a good form for free-form space structures.

Keywords: structural morphology; modeling; shape optimization; seashell-shaped surface; static mechanical behavior

作者简介：王敬烨，硕士，工程师， Email：jingyewang@163.com.

 

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