中国民航大学学报

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正交巨型柱面网壳机库屋盖结构几何构型研究

赵方冉,刘方,齐麟   

  1. (中国民航大学机场学院,天津300300)
  • 收稿日期:2018-01-15 修回日期:2018-04-09 出版日期:2018-06-24 发布日期:2018-06-26
  • 作者简介:赵方冉(1960—),男,山东东平人,教授,硕士,研究方向为机场工程.
  • 基金资助:
    国家自然科学基金青年科学基金项目(51508557)

Research on roof structure geometric configuration of orthogonal huge cylindrical reticulated shell hangar

ZHAO Fangran, LIU Fang, QI Lin   

  1. (College of Airport Engineering, CAUC, Tianjin 300300, China)
  • Received:2018-01-15 Revised:2018-04-09 Online:2018-06-24 Published:2018-06-26

摘要: 分析了正交巨型柱面网壳机库结构的几何构成形式,推导了结构各几何参数间的数值关系,提出了正交巨型柱面网壳机库结构的建模方法。编制建模程序,给定结构跨度、长度、矢高、网格数,便可生成正交巨型柱面网壳结构几何模型。与正放四角锥双层柱面网壳和斜放四角锥双层柱面网壳结构进行对比分析,计算杆件最大应力、结构最大挠度与单位面积用钢量。结果表明,正交巨型柱面网壳机库屋盖结构主次分明、受力合理、传力路线明确,在保证结构强度与刚度的基础上减少材料用量,减轻结构自重,使机库结构实现更大跨度,为机库屋盖结构的理论研究与工程设计提供参考。

关键词: 空间结构, 几何构型, 正交巨型网格, 柱面网壳, 机库

Abstract: Geometric configuration of orthogonal huge cylindrical reticulated hangar shell is analyzed, numerical relationship between geometric parameters is deduced, and the modeling method of this structure is proposed. Modeling program is designed, given parameters such as span, length, height and mesh number, then a geometric model of orthogonal huge cylindrical reticulated hangar shell structure is generated. Compared with orthogonal square pyramid double-layer cylindrical reticulated shell and diagonal square pyramid double-layer cylindrical reticulated shell, maximum stress, maximum deflection and steel consumption per unit area are calculated. Results show that the orthogonal huge cylindrical reticulated hangar shell has structure with clear priorities, reasonable stress and specific transmission route. On the basis of ensuring strength and rigidity, material consumption and weight of the structure are reduced. Besides, greater span of hangar structure can be realized. The current study provides reference for theoretical research and engineering design of hangar roof structure.

Key words: space structure, geometric configurations, orthogonal huge grid, cylindrical reticulated shell, hangar

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