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Developable curved surface tubular structure

A technology of tubular structure and curved surface, which is applied in the direction of building components, building structures, buildings, etc., can solve problems such as difficult to control deformation, and achieve the effects of low production cost, convenient processing, and high processing accuracy

Inactive Publication Date: 2018-09-07
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the deficiencies in the prior art, solve the problem that the deformation is difficult to control during the design process of curved building structures, and provide a low-cost expandable curved tubular structure that is easy to manufacture and install

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0031] Embodiment 1: An embodiment of a rectangular tubular structure with equal cross-section and curved surface.

[0032] Such as figure 1 As shown, it represents a curved tubular structure, including a number of "S"-shaped curved indentations S10 uniformly arranged on the sheet material, and the curved creases are surrounded by four indentations parallel to the circumferential direction and uniform in two directions. The edge is diamond-shaped, and one end of the thin plate is provided with a glue point A10, which is used for glue after curling. The thin plate material can be cardboard, PP board and other materials, and the size of the thin plate is about A4 (293mm*210mm). The indentation is processed by a laser engraving machine. In this embodiment, there are 11 curved marks S10 in total, which are evenly distributed along the horizontal direction, and the cross-section will form a regular pentagon after curling. The viscose used in the pasting area A10 in this embodime...

Embodiment 2

[0038] Such as Figure 4 As shown; the difference between this embodiment and the previous embodiment 1 is that the curvature S21 is different, and will be surrounded by a curved rhombus unit E21. A total of 13 curved marks are evenly distributed, forming a regular hexagonal cross-section after the thin plate is curled. In the vertical direction, there are 2 groups of crests and troughs, forming 2 curved diamond-shaped units E21 in the vertical direction of the thin plate, that is, 2 curved surface units E22 in the axis direction of the curled origami tubular structure. After folding and compressing according to the operation steps in the above examples, evenly distributed small curved surface structures can still be formed on the surface of the cylinder. The curved diamond-shaped unit E22 formed by this kind of curved indentation is relatively tall and thin, and the finished product is as follows Figure 4 As shown on the right, different from Example 1, different structural...

Embodiment 3

[0040] Such as Figure 5 Shown; The difference between this embodiment and the above-mentioned two embodiments is that the shape fluctuation range of its curved creases is relatively large, and the curves S31 are arranged in a staggered manner, and a complete curved rhombus unit is not formed on its limited height, such as As shown in the figure, unit E31 in the figure. After curling, an incomplete curved diamond-shaped unit E32 is formed. After folding and compressing according to the operation steps in the above-mentioned embodiments, a small curved surface structure E32 can also be formed on the surface of the tubular structure, and finally a finished product such as Figure 5 shown on the right.

[0041] To sum up, with the above composition of the present invention, the user can easily and quickly make the expandable tubular structure with regularly distributed concave-convex small curved surfaces through steps such as manual folding, pressing, and pasting. In the proc...

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Abstract

The invention discloses a developable curved surface tubular structure. The developable curved surface tubular structure is composed of at least one curved surface tubular module distributed in the axial direction, wherein each single curved surface tubular module is a thin-wall pipe fitting with a polygonal cross section, and the surface of each thin-wall pipe fitting is provided with prefabricated curved indentation lines, so that a curved surface is naturally formed in the process of curling to form the pipe fitting. The curved indentation of the curved surface can be modified, including changing the curvature, extension direction and arrangement density of the curved indentation. The curved surface tubular structure with developability can meet the results of high specific energy absorption rate and controllable stable deformation as well as the requirements of other ideal curved surface tubular structures. The crease shape of the developable curved surface tubular structure is convenient to form, the surface of the whole structure is developable surface, and namely, the surface of the whole structure can be completely unfolded into a plane. The developable surface has the advantages of more convenient machining, low production cost and high processing accuracy when a plate is adopted for being pressed and formed.

Description

technical field [0001] The invention belongs to the technical field of building structure design, relates to the structural design in the construction process of buildings and civil facilities, and particularly relates to a rapidly controllable developable curved tubular structure under the action of axial pressure. Background technique [0002] The curved surface modeling of the building is a very important development direction in the modern and novel architectural design. In the current architectural design, it is usually first to make the supporting bracket and cover the curved surface on its surface to form a curved surface configuration, so as to achieve a firm and beautiful effect. This method is not only complicated for architectural designers and builders, but also takes a long time. [0003] In architectural design, curved surface configurations are generally placed on the facade of building structures, etc., to divide the space in a novel way, to provide people i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/00E04C1/00
CPCE04B1/00E04C1/00
Inventor 马家耀杨晓辰李庭玮陈焱杨富富
Owner TIANJIN UNIV
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