日本建築学会構造系論文報告集
Online ISSN : 2433-0000
Print ISSN : 0910-8025
ISSN-L : 0910-8025
裁断図をもとにした膜構造物の実初期つり合い状態の解析
坪田 張二吉田 新黒川 泰嗣
著者情報
ジャーナル フリー

1987 年 373 巻 p. 101-110

詳細
抄録

Current analytical methods for determining an initial equilibrium configuration of membrane structures are based on the assumption that the membrane stress distribution is uniform all over the surface. On the other hand, a typical fabrication process of these structures is that a complex curved surface is divided into some plane membrans strips called "cutting patterns", they are assembled each other and finally they are stretched between the fixed boundary structures. Therefore, the actual stress distribution deviates from the assumed uniform stress state and overstessed or nonstressed (wrinkling) regions possibly occur in the actual membrane structures. In this paper, this actual initial equilibrium state is clearly defined in consideration of actual fabrication process and a new analytical method for determinining this equilibrium state is proposed. In the analysis, the geometry and material properties of the cutting patterns are given and the stress distribution and equilibrium confuguration are treated as unknown variables. By adopting the proposed method to simple membrane structural models, the deviation of actual stress state from the assumed uniform stress state was found to be significant and the necessity of the proposed method for evaluating the response and safety of actual structures was confirmed. Furthermore, the applicability and the validity of the proposed method were verified through the simulation analysis of an actual erection process of an actual tensile membrane structure designed by the authers.

著者関連情報
© 1987 一般社団法人日本建築学会
前の記事 次の記事
feedback
Top