JPS6333538B2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a three-dimensional truss that forms the frame of a building by assembling truss constituent members in a mesh pattern, and is mainly used for large-scale structures such as warehouses, gymnasiums, hangars, and leisure centers. do.

BACKGROUND ART Buildings with three-dimensional truss structures constructed by assembling truss members in the form of a mesh are known and widely used, in which upper and lower chord members are constructed as a rectangular frame with a belly member. However, when assembling rectangular frames, conventionally, they are often joined by attaching them to separately made intersection mounting members, or the bottom material at the end of the rectangular frame is bolted on-site, which requires a large number of parts. Therefore, the installation work was time-consuming.

Therefore, in this invention, the space truss structure was improved with the following objectives in mind.

Simplify on-site assembly and shorten construction time.

Cost reduction by reducing the number of parts and mass production.

Improved safety when working at heights.

To provide a joint structure that can be assembled into various truss shapes such as square, rhombus, and triangle.

The present invention will be described below based on illustrated embodiments.

Figures 1a, b, and c show a rectangular frame as a truss component used in this invention.
Two types, a rectangular frame 1 and a second side rectangular frame 2, are used. Both rectangular frames 1 and 2 each consist of an upper surface plate 3, a lower surface plate 4, and a bottom plate 5 provided perpendicularly thereto, each having approximately the same length and parallel to each other. uses a plate-like body with continuous circular holes as the belly member 5.

At the end of the first rectangular frame 1, only the belly member 5 protrudes, and the protruding portion forms a joint piece 6 with the second rectangular frame 2. In addition, the four corners of this frame have a relatively cut-out shape, as shown in Figure 1c.
When the first rectangular frame 1 and the second rectangular frame 2 are joined in a cross shape, the upper and lower plates 3 of the second rectangular frame 2,
4 are sandwiched between the upper and lower plates 3 and 4 of the first rectangular frame 1.

On the other hand, at least one of the ends of the second rectangular frame 2 is provided with a plate-shaped attachment part 7 perpendicular to the upper and lower plates 3 and 4. Then, as shown in Fig. 1c, the above-mentioned joint piece 6 of the first rectangular frame 1 is inserted between the mounting pieces 7, 7 of the two members of the second rectangular frame 2 whose ends are butted together, and the joint piece 6 of the first rectangular frame 1 is joined by bolts or the like. to clamp.

Figures 2a, b, and c show other examples of rectangular frames 1 and 2, in which the belly member 5 is formed into a triangular truss shape.

3 and 4 show a three-dimensional truss constructed by combining the first rectangular frame 1 and the second rectangular frame 2 described above, and between the nodes of the rectangular frames 1 and 2 there are further rod members 8 and A support rod 9 is arranged.

During construction, by assembling the rectangular frames 1 and 2 in a cross or X shape on the ground in advance and joining them together, on-site work can be simplified and work at heights can be greatly reduced. Since the amount of water is reduced, construction safety is high.

Figures 5 a, b to 9 a, b, c, d, e, f
1 shows a method of joining rectangular frames 1 and 2 when applied to three-dimensional trusses of various shapes.

Figures 5a and 5b show the case where the rectangular frames 1 and 2 are assembled into a square mesh, and Figures 6a, b, and c show the case where the rectangular frames 1 and 2 are assembled into a diamond-shaped mesh. In the case of a diamond-shaped mesh, the ends of the rectangular frames 1 and 2 are inclined with respect to the material axis direction, as shown in FIG. 6b. It is also possible to join only the first rectangular frame 1 using the joining member 10 as shown in FIG. 6c.

Figures 7a, b, and c and Figures 8a and b show cases in which they are assembled in a triangular mesh shape. Only 1 is joined. On the other hand, in the case of FIGS. 8a and 8b, the first rectangular frame 1' has a deformed end by elongating the joint piece 6 at the end, and the second rectangular frame has a chevron-shaped end. 2' is used to join two members each of the rectangular frame bodies 1, 1', and 2', six members in total, at the nodes.

FIGS. 9a to 9f show the case where they are assembled in a hexagonal mesh shape, and in FIGS. 9a and 9d, a first rectangular frame 1'' with bent end joint pieces is used. The first rectangular frames 1, 1'', 1'' are joined together.
In addition, in b and e, the joining member 12 is used to
Only the rectangular frame 1 has three members joined together. Figure 9c
In the case of and f, they are assembled in the same way as when forming the rhombic meshes in FIGS. 6a and 6b. In this case, depending on the member position, a joining piece similar to the joining piece 6 at the end of the first rectangular frame 1 is provided at one end of the second rectangular frame 2.

Figures 10a and 10b show details of the nodes in the space truss of the present invention, and 13 in the figures is a joint plate.

In addition, in FIGS. 11a and 11b, the pipe material 14 is attached to the belly material 5.
This shows an example in which the upper and lower plates 3 and 4 are connected using the above.

Note that instead of the upper plate and the lower plate, a shaped steel such as an angle, a cut T, a pipe material, etc. may be used. Figure 11 a, b
is the case of cut T.

The present invention has the above-described configuration, and since the rectangular frames can be joined without using any special joining member, the work is greatly simplified, and the construction period and cost can be reduced. In addition, since the rectangular frame body is composed only of the upper and lower surface plates and the belly member, it is easy to process, reducing costs through mass production, simplifying the joining work, and making it possible to apply it to many types of three-dimensional truss shapes. Furthermore, since the number of parts required for on-site work is small, it is possible to work at heights safely.

[Brief explanation of the drawing]

Figures 1a and 1b are perspective views of the first rectangular frame and the second rectangular frame, respectively; Figure 1c is a perspective view showing them assembled in a cross; Figures 2a and 2
Figures b and 2c are perspective views showing examples of other rectangular frames, Figures 3 and 4 are plan views showing a part of the overall structure of the space truss, and Figures 5a to 9. Figure f shows the state in which rectangular frames are assembled into meshes of various shapes. Figure b,
and FIG. 9c is a plan view, FIG. 5b, FIG. 6b and FIG. 6c, FIG. 7b and FIG. 7c, FIG. 8b, FIG. 9d, FIG. 9e, and Fig. 9 f is Fig. 5 a, Fig. 6 a, Fig. 7 a, Fig. 8 a, respectively.
Figures 9a, 9b, and 9c are enlarged views of main parts; Figure 10a is a plan view showing details of the nodes;
0B is a sectional view thereof, FIG. 11A is a plan view showing details of the nodes when pipe material is used as the belly material of the rectangular frame, and FIG. 11B is a sectional view thereof. DESCRIPTION OF SYMBOLS 1...First rectangular frame body, 2...Second rectangular frame body, 3...Top surface plate, 4...Bottom surface plate, 5...Body material, 6...
Joint piece, 7... Mounting piece, 8... Rod material, 9... Supporting rod material,
10, 11, 12...Joining member, 13...Joint plate, 1
4...Pipe material.

Claims (1)

[Claims] 1. A truss constituent member in which a top plate or section steel and a bottom plate or section steel, which are substantially equal in length and parallel to each other, form a rectangular frame with a belly member, and the first
At the ends of the rectangular frame, only the belly member protrudes and the corners are cut out, and at least one of the ends of the second rectangular frame is connected to the top plate or section steel and the bottom plate or section steel. A plate-shaped attachment part is formed vertically and can be attached by clamping the joint belly material of the end of the first rectangular frame, and the first rectangular frame and the second rectangular frame are combined. A three-dimensional truss characterized by: