JPS58150635A - Three-dimensional truss - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

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 warehouses,
Used for large-scale structures such as gymnasiums, hangars, and leisure centers.

BACKGROUND ART A building with a three-dimensional truss structure is known and widely used, in which the upper chord member and the lower chord member are constructed as a rectangular frame with a belly member, and constructed by assembling nine truss members in a mesh shape. but,
Conventionally, when assembling rectangular frames, they are often joined by attaching them to intersection attachment members that are made separately, or the belly material at the end of the rectangular frames is often bolted on-site, which requires a large number of parts. Therefore, the installation work was time-consuming.

Therefore, in this invention, the three-dimensional truss structure was improved with the following objectives in mind.

■ Simplify on-site assembly and shorten construction time.

■ Zero cost reduction due to reduced number of parts and mass production ■ Improved safety when working at heights.

■ Providing joint structures that can be assembled using square, diamond, and triangular truss shapes.

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

Figure 1 (&), (b), ((() shows nine rectangular frames as truss constituent members used in this invention, and there are two types: a first rectangular frame 1 and a second rectangular frame 2. Use.

Both rectangular frames 1 and 2 have approximately equal lengths and are comprised of an upper plate 3, a lower plate 4, which are parallel to each other, and a belly member 5 provided perpendicularly thereto, as shown in FIGS. 1(a) and (b).
In the embodiment shown in (e), a plate-like body having continuous circular holes is used 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, so that the first rectangular frame 1 and the second rectangular frame 2 are arranged in a cross shape, as shown in FIG. When joined, the upper and lower plates 3 and 4 of the second rectangular frame 2 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. As shown in FIG. 1(e), the above-mentioned first
The joint piece 6 of the rectangular frame body 1 is inserted and clamped by bolt joint or the like.

Figures 2 (&), (b), and (C) show the rectangular frame 1,
This shows another example of No. 2, in which the belly member 5 is formed into a triangular truss shape.

Figures 3 and 4 show the first rectangular body 1 and the second rectangular shape described above.
The rectangular frames 2 are combined to form a three-dimensional truss, and rods 8 and support rods 9 are further arranged between the rectangular frames 1 and 20 nodes.

During construction, a rectangular frame l is placed on the ground in advance.

By assembling 2 in a cross or X shape and joining them together, on-site work is simplified and work at heights is greatly reduced, resulting in high construction safety.

Figure 5 (&), (b) to Figure 19 (&), (b),
((ri, (d), (ill), (f) is a rectangular frame 1 when applied to three-dimensional trusses of various shapes.
2 shows the joining method.

5(a) and 5(b) show the case where the rectangular frames 1 and 2 are assembled into a square mesh, and FIG. 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. 6(b). It is also possible to join only the first rectangular frame 1 using the joining member 1o as shown in FIG. 6(C).

Figure 7 (&), (b), (e) and Figure 8 (
Figures a) and (b) show the case of triangular mesh formations, and Fig. 7(a) is a companion.

In φ) and (e), only the first rectangular frame 1 is joined using the joining member 11. On the other hand, Fig. 8 (1k)
In the case of (b), a first rectangular frame 1' having a deformed end formed by elongating the joint piece 6 at the end and a second rectangular frame 2' having a chevron-shaped end are used. The two members of the rectangular frame i, i', 2' and the needle hole member are joined at the nodes.

Figures 9 (IL) to (f) show cases in which they are assembled into a hexagonal mesh, and in Figures 9 (1) and 9 (d), the first Using the rectangular frame 1', the first
The rectangular frames 1, 1', and 1# are joined together.

In addition, in (b) and (e), only the first rectangular frame 1 is used to join the three members using the joining member 12. Figure 9(c)
In the case of FIG. 6(IL) and FIG. 6(b), they are assembled in the same way as when forming the diamond-shaped meshes. 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.

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

Further, FIG. 11(a), φ) shows an embodiment in which the upper and lower plates 3 and 4 are connected using a pipe material 14 as the belly member 5.

Note that it is also possible to use shaped steel, for example, angle, cut T, pipe material, etc., in place of the top plate and the bottom plate, respectively. Figures 11(a) and (b) are
This is the case of T.

With the above-described structure, the present invention can join rectangular frames to each other without using any particular joining member, which greatly simplifies the work, shortens the construction period, and reduces costs. 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]

Fig. 1e) and Fig. 1(b) are perspective views of the first rectangular frame and the second rectangular frame, respectively, Fig. 1(e) is a perspective view showing the state in which they are assembled in a cross, and Fig. 1(e) is a perspective view of the first rectangular frame and the second rectangular frame. Figure (a), Figure 2 (b)
), and FIG. 2(C) are perspective views showing examples of other rectangular frames, FIGS. 3 and 4 are plan views showing a part of the overall structure of the space truss, and FIG. 5(a). ~Figure 9(f)
5(a) and 6(1) respectively show the state in which rectangular frames are assembled into meshes of various shapes. Figure φ), Figure 7 (C), Figure 8 (b), Figure 9 (
d), Fig. 9(・), and Fig. 9(f) are respectively Fig. 5(a), Fig. 6(a), Fig. 7(1), and Fig. 8(a).
), Fig. 9(a), Fig. 9 inside), and enlarged views of the main parts of Fig. 9(e), Fig. 10(&) is a plan view showing details of the nodes, Fig. 10(b) is Its I-■ sectional view, Figure 11 (lk
) is a plan view showing details of the nodes when pipe material is used as the belly material of the rectangular frame, and FIG. 1... First rectangular frame body, 2... Second rectangular frame body, 3...
・Top plate, 4... Bottom plate, 5... Belly material, 6... Joint piece, 7... Mounting piece, 8... Rod material, 9
...Supporting rod material, 10.11.12...Joining member, 13...Join plate, 14...Pipe material. Figure 5 ('a) Figure 6 [2 (a) 180- (b) (b) ffi; Figure 7 (a) Ha Ha (b) Figure 9 (a) (b) (c)
(d) Section 101] (a)

Claims (1)

[Claims] (1) is a truss constituent member in which a top plate or section steel and a bottom plate or section steel, which are of approximately equal length and parallel to each other, are formed into a rectangular frame body with a belly member, and the ends of the first rectangular frame body is a joint having a shape in which only the bottom member protrudes and the corners are notched, while at least one of the ends of the second rectangular frame is provided perpendicularly to the top plate or section steel and the bottom plate or section steel, and the above-mentioned A plate-shaped attachment part is formed that can be attached by sandwiching the connecting part belly material at the end of the first rectangular frame, and the first rectangular frame and the second rectangular frame are combined. Three-dimensional truss.