JP2020016329A - Structure using unit steel material having connection holes at the same intervals - Google Patents

Abstract

To solve a problem that, in a conventional unit steel material, connection holes are not formed along an extension direction of the unit steel material, and therefore, it is necessary to properly form connection holes at the unit steel material when constructing a structure.SOLUTION: A structure in which first unit steel materials and second unit steel materials having a plurality of pieces of connection holes at the same intervals in extension directions are made to adhere to each other in a plurality of pieces by connection tools which are inserted into the connection holes comprises: beams in which the first steel materials and the second steel materials which tightly adhere to each other are serially connected to each other in a plurality of pieces in the extension directions; and columnar supports having structures similar to those of the beams for holding the beams. Connection parts of the first unit steel materials and connection parts of the second unit steel materials are located in different positions along the extension directions.SELECTED DRAWING: Figure 1

Description

The present invention is a structure which is easy to assemble in a warehouse or the like, for example, and can be configured by assembling a plurality of unit steel materials.
In particular, the same type of unit steel material can be transported to the installation location of a structure, and can be easily assembled at the installation location.

Conventionally, a plurality of unit steel materials of the same length are detachably adhered in parallel on its long surface in a detachable manner, a beam formed by connecting the detached unit steel materials in a fixed direction in a detachable manner in series, A structure provided with a support for holding the beam has been proposed (see Patent Document 1).
In the structure proposed here, the connection holes are not opened in each unit steel material, or the connection holes are opened only in predetermined places, so the unit steel material is adjusted according to the structure to be constructed. Each time, it was necessary to drill a connection hole at a specific position.

  Therefore, when the unit steel material is transported to the installation location of the structure and assembled at the installation location, a step of separately drilling a connection hole is required, and it has been difficult to construct the structure quickly.

JP-A-2002-187690

  As described above, in the related art, since the connection hole is opened only at a predetermined position of the unit steel material, the connection hole is opened at a specific position for each unit steel material according to the structure to be constructed. Therefore, when the unit steel material is transported to the installation location of the structure and assembled at the installation location, a step of separately drilling connection holes is required, and it has been difficult to quickly construct the structure.

  However, in recent years, it is difficult to arrange a large number of workers at the construction site of a structure, and it is extremely inefficient to carry out drilling operations requiring skilled personnel by bringing tools for drilling connection holes at the site. It is.

  In view of the conventional problems as described above, the present invention is intended to realize a structure that can be constructed on a construction site in a short time by a small number of people, even by ordinary workers who are not skilled in drilling work and the like. It is.

(1) In the structure of the present invention, the first unit steel material and the second unit steel material each having a plurality of connection holes formed at the same interval in the extending direction are connected to the connection holes. A beam formed by connecting a plurality of the first and second unit steel materials in series in the extending direction and a structure similar to the beam for holding the beam. And a strut having:
The connecting portion between the first unit steel materials and the connecting portion between the second unit steel materials are located at different positions along the extending direction.

  In the present invention, since a plurality of connection holes are formed at the same interval in the extending direction in the unit steel material, it is not necessary to drill a connection hole in a necessary portion, and the unit steel materials can be freely combined.

  Further, since the connecting portion between the first unit steel materials and the connecting portion between the second unit steel materials are located at different positions along the extending direction, the connecting portion between the first unit steel material and the second unit steel material are connected to each other. Is in a so-called "guichi" state, the connecting portion of the first unit steel is located at the extending portion (non-connecting portion) of the second unit steel, and conversely, The connecting portion of the unit steel material is located at the extending portion of the first unit steel material, and the connecting portion of one unit steel material is in close contact with the extending portion of the other unit steel material. High rigidity can be ensured.

  When the first unit steel material and the second unit steel material are connected in a state where their ends are aligned, the ends of the first and second unit steel materials that are in close contact with each other and are connected thereto. Since the ends with the other first and second unit steel materials are in abutting state, a separate connecting member is required, which complicates the structure and inevitably increases the price. In addition, there is a possibility that the strength at the connecting portion is reduced.

Further, since the beam and the column can be made of the same unit steel material, the manufacturing cost is reduced.
Further, it is possible to freely change the dimensions of the beams, columns, and the like according to the site.

(2) In the present invention, assuming that the pitch of the connection holes is A, it is preferable that the dimension from the end of the unit steel material to the center of the connection hole closest to the end be A / 2.
When this relational expression is established, it is not necessary to make the connection between the first unit steel materials and the connection between the second unit steel materials coincide (the connection between the first unit steel and the connection between the second unit steel). Can be connected in a so-called “guichi” state), and the rigidity of the connecting portion increases.

(3) In the present invention, the connection tool is a tapping screw, and the connection hole is formed of a circular hole into which the tapping screw is inserted without resistance, and a tapping hole into which the tapping screw is screwed. It is desirable.
The connection hole is formed of a circular hole through which the tapping screw is inserted without resistance, and a tapping hole into which the tapping screw is screwed. If the connection tool is a tapping screw, anyone can easily use a single screwdriver. The structure can be constructed quickly and in a short time.
The number of man-hours when using a nut is reduced, and a nut is not required.
In addition, it takes a great deal of time to screw female threads on the inner surface of each of the connection holes. However, according to the present invention, such labor is not required.

(4) In the present invention, it is desirable that the first unit steel material and the second unit steel material are the same.
If the first unit steel material and the second unit steel material are the same, the manufacturing process of the unit steel material is simplified, and a large amount can be manufactured at low cost.

(5) In the present invention, it is desirable that the first unit steel material and the second unit steel material connected to the end of each beam or support post have different lengths.
As described above, at the end of the structure, one of the unit steel materials is a short one because the connection between the first unit steel material and the connection between the second unit steel materials is “Guichi”. Must be used,
It is also easy to prepare a fixed number of short objects in advance, or to cut them on site.

(6) In the present invention, each of the first unit steel material and the second unit steel material has a channel steel having a long side and a short side in a cross section perpendicular to the extending direction (L-shaped cross section or M-shaped cross section). ), Wherein the first unit steel material and the second unit steel material are connected in parallel, and the ends of the long sides and the short sides thereof are connected by the connecting tool to form a beam or a pillar having a rectangular cross section. Is also possible.
When the cross sections of the beams and the columns are formed in a rectangular shape as described above, wall materials and the like can be easily mounted.

(7) In the present invention, the first unit steel material and the second unit steel material are both channel steels, and the outer bottoms of the first unit steel material and the second unit steel material can be adhered to each other. .
The unit steel material is a channel steel. If the two channel steels are fixed such that their outer bottoms are in close contact with each other, the structure becomes the same as that of the H-shaped steel, and the rigidity is further increased. The hanging tool having the pulley can be easily mounted so as to be movable.

It is a perspective view of a beam of a structure concerning a 1st embodiment of the present invention. FIG. 2 is a partially enlarged front view of a beam of the structure according to the first embodiment of the present invention. FIG. 3 is a perspective view of a second example of the beam of the structure according to the first embodiment of the present invention. It is a perspective view of the 3rd example of the beam of the structure which concerns on 1st Embodiment of this invention. It is an end elevation of a unit steel material concerning a 1st embodiment of the present invention. It is a front view of a unit steel material concerning a 1st embodiment of the present invention. It is a bottom view of the unit steel material concerning a 1st embodiment of the present invention. It is a rear view of a unit steel material concerning a 1st embodiment of the present invention. FIG. 2 is an end view of the beam according to the first embodiment of the present invention. It is a front view of a beam concerning a 1st embodiment of the present invention. It is a perspective view of the structure concerning a 1st embodiment of the present invention. It is a perspective view of a beam concerning a 2nd embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 10, the first unit steel material 1 and the second unit steel material 2 are channel steels having a long side 3 and a short side 4 in a cross section perpendicular to the extending direction (L-shaped cross section or M-shaped cross section). ), And is made of a hot-dip galvanized steel sheet having a thickness of 1.6 mm, a width of the base 5 and the long side 3 of 48.4 mm, and a width of the short side of 15 mm.

In FIG. 1, the length L1 of the first unit steel 1 is 800 mm, and the length L1 / 2 of the second unit steel 2 at the end is 400 mm.
Further, the length of the other second unit steel material 2 (right side in FIG. 1) connected in the extending direction of the second unit steel material 2 at the end is equal to the length of the first unit steel material 1. It is the same 800 mm.
In addition, as shown in FIG. 4, the length L1 / 4 of the two unit steel materials 2 may be 200 mm.

At the free ends of the long sides 3 of the first unit steel member 1 and the second unit steel member 2, circular connection holes (so-called stupid holes) 6 having a diameter of 5 mm are formed at a pitch of 25 mm along the extending direction. Perforated continuously.
Further, a circular tapping hole 7 having a diameter of 4.5 mm is continuously formed at a short side 4 of the first unit steel material 1 and the second unit steel material 2 at a pitch of 25 mm along the extending direction. ing.
The other through holes are all formed with the same diameter as the tapping holes 7.

Then, the first unit steel material 1 and the second unit steel material 2 are combined such that the insides of the bases 5 and 5 face each other, and as shown in FIG. Is connected and fixed to the short side 4 of the second unit steel material 2 by a tapping screw 8 as a connecting tool. In addition, the long side 3 of the second unit steel material 2 is connected and fixed to the short side 4 of the first unit steel material 1 by a tapping screw 8, so that a beam 9 and a column 10 having a rectangular cross section as a whole are formed.
Note that it is not always necessary to connect and fix all the connection holes 6 and 7 with the tapping screws 8. As shown in FIGS. 3, 4, and 10, an appropriate number of connection holes 6 and 7 are provided at appropriate positions depending on the structure and size of the structure. It is sufficient to fix the connection with the tapping screw 8.
Further, the connection tool does not necessarily need to be the tapping screw 8 as described above, and may be a rivet or an eyelet fitting.

  At this time, as described above, the length L1 of the first unit steel 1 is 800 mm, the length L1 / 2 of the second unit steel 2 at the end is 400 mm, and the length of the second unit steel 2 at the end is 2 mm. Since the length L1 of the other second unit steel materials 2 to be connected is 800 mm, the connecting portion C1 between the first unit steel materials 1 and the connecting portion C2 between the second unit steel materials 2 extend. The positions are different along the direction, and the connection portion C1 of the first unit steel material 1 and the connection portion C2 of the second unit steel material 2 are connected in a so-called "guichi" state.

  Accordingly, the connecting portion C1 of the first unit steel material 1 is located at the extending portion (non-connecting portion) of the second unit steel material 2, and conversely, the connecting portion C2 of the second unit steel material 2 is the first unit steel material. Since it is located in the extending portion of the steel material 1 and the connecting portion of one unit steel material is in close contact with the extending portion of the other unit steel material, a separate connecting member is not required and high rigidity can be secured.

As shown in FIG. 10, when the pitch of the connection holes 6 and the tapping holes 7 is A, the dimension from the end of the unit steel material 1 to the center of the connection holes 6a, 7a closest to the end is A. / 2.
That is, when A = 25 mm and A / 2 = 12.5 mm are set, the connecting portion C1 of the first unit steel 1 is located at the extending portion (non-connecting portion) of the second unit steel 2, Conversely, the connecting portion C2 of the second unit steel material 2 is located at the extending portion of the first unit steel material 1, and the connecting portion of one unit steel material is in close contact with the extending portion of the other unit steel material. become.
The dimension between the connection hole 6 and each tapping hole 7 is also set to A as shown in FIG.

FIG. 12 shows that both the first unit steel and the second unit steel are channel steels, and the outer bottoms of the first unit steel and the second unit steel are brought into close contact with each other.
The first unit steel material 11 and the second unit steel material 12 are general channel steels, and two channel steels are fixed so that their outer bottoms are in close contact with each other, and have the same structure as the H-shaped steel as a whole. Has become.
Connection holes 13 similar to the above are continuously drilled in two rows at the bottoms of the first unit steel material 11 and the second unit steel material 12, and a connection tool such as a screw is inserted into an appropriate connection hole 13. The first unit steel material 11 and the second unit steel material 12 are closely fixed.

  Reference Signs List 1 1st unit steel material 1, 2 2nd unit steel material, 3 long side, 4 short side, 5 bottom side, 6 connection hole (fool hole), 7 tapping hole, 8 tapping screw, 9 beam, 10 support, 11th 1 unit steel material, 12 second unit steel material, 13 connection holes, C1 connection part, C2 connection part.

Claims (7)

In each case, a plurality of first unit steel materials and a plurality of second unit steel materials, each having a plurality of connection holes formed at the same interval in the extending direction, are closely adhered to each other by a connector inserted into the connection holes, and the plurality of first unit steel materials are closely adhered to each other. A structure in which a plurality of first and second unit steel materials are connected in series in the extending direction, and a beam is formed, and a column for holding the beam and having the same structure as the beam is provided. Thing,
A structure in which a connecting portion between the first unit steel materials and a connecting portion between the second unit steel materials are located at different positions along the extending direction.   2. The structure according to claim 1, wherein when a pitch of the connection holes is A, a dimension from an end of the unit steel material to a center of the connection hole closest to the end is A / 2. 3.   The connection tool is a tapping screw, and the connection hole is formed of a circular hole into which the tapping screw is inserted without resistance, and a tapping hole into which the tapping screw is screwed. The structure according to any one of the above.   The structure according to any one of claims 1 to 3, wherein the first unit steel material and the second unit steel material are the same.   The structure according to any one of claims 1 to 3, wherein the first unit steel material and the second unit steel material connected to the end of each beam or the pillar have different lengths.   Each of the first unit steel material and the second unit steel material is a channel steel having a long side and a short side in a cross section perpendicular to the direction in which the unit steel material extends, and the two steel materials are arranged in parallel at the ends of the long sides. The structure according to any one of claims 1 to 5, wherein a portion and a short side are connected by the connection tool to form a beam or a support having a rectangular cross section.   6. The first unit steel material and the second unit steel material are both channel steels, and the outer bottoms of the first unit steel material and the second unit steel material are in close contact with each other. The structure described in Crab.

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