JP2005232896A - Large bamboo dome - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a large bamboo dome capable of accommodating several ten thousand persons from several hundred persons by a lightweight and strong bamboo material. <P>SOLUTION: This large bamboo dome is composed of a bamboo truss beam installed in a dome shape, a bamboo cage 1 supported by the bamboo truss beam and formed by braiding a round bamboo material, and a bamboo mesh 2 installed in a mesh of the bamboo cage 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a large bamboo dome.

  Conventionally, there is a large dome made of steel, but there is no large dome using bamboo. In the past, there was a small bamboo dome that could accommodate several people, but there was no large bamboo dome that could accommodate hundreds to tens of thousands of people.

  The problem to be solved by the present invention is to provide a large bamboo dome that can accommodate hundreds to tens of thousands of people with light and strong bamboo.

  The large-sized bamboo dome of the present invention is attached to a bamboo truss beam laid in a dome shape, a bamboo cage that is supported by the bamboo truss beam and braided with round bamboo material, and the mesh of the bamboo cage. And a bamboo mesh.

  The large bamboo dome of the present invention can constitute a lightweight and robust bamboo building.

  FIG. 1 is a front view of a large bamboo dome, FIG. 2 is a plan view thereof, 1 is a bamboo cage constructed by braiding a round bamboo material (unbroken bamboo material) with a sixth stitch, It is a bamboo mesh constructed by splitting bamboo from the sixth. The bamboo mesh 2 is attached in the hexagonal mesh 1a of the bamboo cage 1. G is the doorway. In this embodiment, the bamboo cage 1 and the bamboo mesh 2 are knitted with a sixth stitch, but other assembly structures such as a four-knitting may be used.

  FIG. 3A is an enlarged view of a portion of the bamboo cage 1. As shown in FIG. 3B, the bamboo material T constituting the bamboo cage 1 is formed into a corrugated shape. The bamboo material T is heated and dried with a high-temperature gas such as a combustion gas. The bamboo cage 1 may be a straight bamboo material. In this embodiment, one bamboo material T is braided, but a plurality of such as two or three may be braided in a cage shape.

  When the bamboo material T is added, the ends of the two bamboo materials are overlapped and tied together, or as shown in FIGS. 3C, 3D and 2E, the two bamboo materials T, T ′ May be connected by the connection hardware 3. The connection hardware 3 is attached to both ends of the band plate 3a so that the fitting cylinders 3b and 3b 'are positioned on the opposite sides, and the fastening bands 3c and 3c' are placed in front of the fitting cylinders 3b and 3b '. Installed and configured. The ends of the bamboo materials T and T ′ are inserted into the fitting cylinders 3b and 3b ′, respectively, and the bamboo materials T and T ′ are fastened and fixed by the fastening bands 3c and 3c ′.

  FIG. 4 shows a bamboo truss beam 4 that supports the bamboo cage 1. As shown in FIG. 5 (A), the bamboo truss beam 4 of the present embodiment includes two upper chord members 4a, two lower chord members 4b, and an abdomen that connects these chord members 4a and 4b to each other. It is constructed in a dome shape as a solid truss beam composed of 4c. The bamboo materials of the string materials 4a and 4b are connected by the connecting metal 3 as shown in FIGS. 3C, 3D, and 3E, thereby forming a long bamboo truss beam 4 longer than one bamboo material. can do. In the above embodiment, one string member 4a, 4b is used, but a plurality of strings, such as two or three, may be used.

  The abdomen 4c is assembled integrally by being inserted into holes formed in the chords 4a and 4b. In addition, when assembling the abdomen 4c diagonally, as shown in FIGS. 5B and 5C, the abdomen 4c may be assembled by a connection metal 5 including an elbow 5a of an L-shaped pipe and a connecting band 5b. That is, the end of the abdomen 4c is inserted into the elbow 5a, and the elbow 5a is attached to the string members 4a and 4b by the fastening band 5b.

  The bamboo truss beam 4 of the above embodiment has been described as a three-dimensional truss beam with two upper and lower chord members, but the bamboo truss beam of the present invention is not limited to this, and the upper chord member 4a is 1 Two lower chord members 4b, two upper chord members 4a and one lower chord member 4b are triangular three-dimensional truss beams, and upper and lower chord members are one flat truss beam. There may be.

  As shown in FIG. 6, the bamboo truss beams 4, 4 'are cross-crossed and assembled together. In this case, by forming the chord members 4a and 4b into a corrugated shape (see FIG. 3B), the step difference between the two bamboo truss beams 4 and 4 'can be reduced. In addition, these intersections have a connection plate (not shown) attached to the side surface of one bamboo beam 4 and a connection hardware as shown in FIG. You may make it fix the edge part of 4 '.

  FIG. 7 shows a beam support member 6 that supports the bamboo truss beam 4, a beam receiving member 6a that receives the lower chord material 4b of the bamboo truss beam 4, and an arc-shaped member that is integrally assembled to the lower side of the beam receiving member 6a. 6b. Each of the beam receiving members 6a uses a bundle of two bamboo members so that the lower chord member 4b can be easily received. However, one or three or more bamboo members may be bundled and used. The arc-shaped member 6b is attached and supported on the head of a structure such as a column or wall (not shown). This pillar may also be made of bamboo. As is clear from FIG. 8, the main beam support member 6 has an arcuate member 6b. Therefore, as shown in FIG. 8 (A), the bamboo truss beam 4 is supported in a horizontal state, as shown in FIG. 8 (B). As shown, it can be supported at any angle of inclination.

  The bamboo dome shown in FIG. 1 is covered with a rope such as a hemp rope, and the rope is fixed in a tension state at the skirt portion thereof, so that the bamboo and bamboo dome is not blown off by a strong wind or the like.

It is a front view which shows one Example of the large sized bamboo dome of this invention. It is a top view of FIG. They are a partial enlarged view (A) of a bamboo cage, its II sectional drawing (B), and explanatory drawing (C) (D) (E) of a connection metal fitting. It is a layout of bamboo truss beams. It is the perspective view (A) of a bamboo truss beam, and explanatory drawing (B) (C) of the example of a connection of a string material and a belly material. It is explanatory drawing of the cross cross structure of two bamboo truss beams. It is a perspective view of the support member of a bamboo truss beam. It is explanatory drawing of the example of support of the bamboo truss beam by the supporting member of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bamboo cage 1a Net 2 Bamboo mesh 3 Connection metal fitting 3a Band plate 3b, 3b 'fitting cylinder 3c, 3c' fastening band 4, 4 'Bamboo truss beam 4a (Upper) String material 4b (Lower) String material 4c Abdomen 5 Connection hardware 5a Elbow 5b Connection band 6 Beam support member 6a Beam receiving material 6b Arc-shaped member T, T 'Bamboo material

Claims (1)

  A bamboo truss beam erected in a dome shape, a bamboo cage supported by the bamboo truss beam and braided with a round bamboo material, and a bamboo mesh attached to the mesh of the bamboo cage A large bamboo dome characterized by that.

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