JP6626640B2 - Construction method of base structure and base material for joining used therefor - Google Patents

Description

  The present invention provides a method for constructing a foundation structure such as a wall or ceiling formed by joining a plurality of board materials such as gypsum board to a foundation frame material such as a wall or ceiling and joining their ends. The present invention relates to a bonding base material used for this.

In the wall foundation structure, a wall material board such as a gypsum board is cut in advance for each predetermined area, and is vertically or horizontally attached to a foundation frame material composed of a vertical bar and a horizontal bar.
At this time, the ends of the gypsum board are joined at the above-described base frame material, such as a vertical bar or a horizontal bar, so as not to cause sagging or cracking.

Therefore, when there is no base frame material such as a vertical bar or a horizontal bar at the joint, it is necessary to put a joint base material such as an auxiliary bar at the position.
A "base wall structure" described in Patent Literature 1 below uses a steel plate having a substantially T-shaped cross section as a base material for joining such an auxiliary crosspiece or the like.

  In the configuration of the invention described in Patent Document 1, a plurality of wall boards such as a gypsum board are bonded to a base frame material such as a vertical rail and a horizontal rail such that their ends are butt-joined. The butt joint end portion of the wall board is formed of a plurality of foundation skeleton members parallel to the joint end portion of the skeleton members arranged vertically or horizontally. A receiving piece surface on both sides of a joining base material formed in a substantially T-shaped cross section continuous in the longitudinal direction by a steel plate material and both side faces of a protruding piece portion standing upright at the center in the width direction. At a predetermined position in the length direction of the joint end surface of the wall board, that is, a position where the other base framing material extending in a direction orthogonal to the joint end is disposed behind and a position therebetween. And screwed to the wall board and the base material for joining The underlying wall structure that is formed by integrating the ground for the framework material.

Japanese Utility Model Registration No. 2527791

  The above-mentioned conventional wall foundation structure can be adopted also for a ceiling structure. However, when the joint end of the board material is arranged in a direction orthogonal to the foundation frame material, this joint end The board material can be easily joined and fixed by arranging the steel joining base material on the back surface side.

  Further, even when the joint ends of these board members are arranged in parallel with the base frame material, even when the joint ends are located between the base frame members, the joint base material is not used. It is arranged on the back side, and the joint end of both board members is fixed with screws or the like.

  Thus, a joining base material made of steel and having a T-shaped cross section is interposed between the joining ends of the board material that is not supported (lined) in the length direction by the vertical rail or the horizontal rail. And so on, and the board body, the joining base material and the base framing material are integrated with each other at a position where the base framing material and the joining base material intersect with each other, and at a position therebetween, so that the acting force is On the other hand, the entire structure was able to provide a base structure excellent in strength, in which sagging, cracks, and the like hardly occur.

However, if the gypsum board is screwed and fixed to the steel joining base material having the T-shaped cross section, the joining base material between the screwing positions undulates between the screwing positions. This has caused a problem that a gap is generated, that is, a gap is formed between the bonding base material and the board material.
If a gap is formed between the joining end portion of the gypsum board and the joining base material serving as the backing material in this way, there is a possibility that the gypsum board may not meet the fire resistance standard of the building.

  In view of the above, the present invention provides a construction method for preventing the occurrence of a gap between the above-described conventional base structure and a bonding base material disposed at a bonding end of the board members. Another object of the present invention is to provide a joining base material used in this construction method.

In order to solve the above-mentioned problem, a first aspect of the present invention is to assemble a base frame material such as a vertical crosspiece and a horizontal crosspiece, and then form a rectangular board material in a longitudinal direction or a lateral direction by mutually ending each other. In a method of applying a base structure formed by joining in a butt plane shape, a joining base material made of a metal plate material having a substantially T-shaped cross section is prepared, and the joining base material is provided in a substantially central longitudinal direction. Flat portions extending to both sides from the lower end of the extending ridge are provided, and both side edges of these flat portions are located at a position higher than the lower end of the central ridge, and An angle formed with the plane portion is provided at a predetermined angle of 90 degrees or less, and this joining base material is disposed on the back surface of the butt joint portion of the board material, and the back surface of the side edge portion of the board material is Join to the flat parts on both sides of the joining base material, and By arranging the end surfaces so as to abut on both side surfaces of the ridge portion of the joining base material, and then screwing or nailing the board material and the joining base material and / or the base skeleton material. The flat portion of the base material for bonding and the board material are bonded and fixed in a close contact state, and the predetermined angle formed between the ridge portion and the flat portion is in the range of 86.2 degrees to 82.5 degrees. The joining base material is manufactured by press-forming a thin steel plate, and the thickness of the steel plate is set in a range from 0.3 mm to 0.8 mm .

According to a second aspect of the present invention, in the first aspect, an adhesive is applied to a surface side of a flat portion on both sides of the joining base material, and then the ends of the board material are attached to each other and joined. A method of constructing a foundation structure, characterized in that these board materials are screwed or nailed afterwards.

A third aspect of the present invention is a joining base material used in the method for applying a base structure according to the first or second invention.

  In the first aspect of the present invention, after assembling a base frame material such as a vertical crosspiece and a horizontal crosspiece, the base material is formed by butting and joining mutually ends of a rectangular board material in a vertical direction or a horizontal direction. In the construction method of a structure, a joining base material made of a metal plate material having a substantially T-shaped cross section is prepared, and the joining base material is arranged on the back surface of the butt joint portion of the board material. Are bonded to the flat portions on both sides of the base material for bonding, and the end surfaces of the side edges of the board material are disposed so as to abut on both side surfaces of the ridges of the base material for bonding. Then, the board material and the joining base material are screwed or nailed, or the board material and the joining base material and the base frame material are screwed or nailed.

  As the bonding base material used here, flat portions extending to both sides from the lower end of the substantially central longitudinally extending ridge portion are provided, and both side edges of these flat portions are formed at the center projecting portion. A metal plate material is used which is located at a position higher than the lower end of the ridge and is provided with a predetermined angle of 90 degrees or less between the ridge and the flat portion.

  As a result, the joint end of the wall board is lined with a metal plate having a substantially T-shaped cross section, and then is screwed or nailed, so that the strength of this portion is improved, and Even if a shearing force acts from the lateral direction, the displacement of the joining end is reduced, and there is little possibility of cracks and the like, and the effect of preventing the cross crack of the cloth stuck on the surface is exhibited. .

Furthermore, in the present invention, both side edges of both flat portions of the joining base material are located at positions higher than the lower end portion of the ridge portion at the center in the longitudinal direction, that is, the ridge portion and the flat portion Since the angle formed is set to 90 degrees or less, no gap is formed between the board material and the plane portion of the joining base material at the joining end of the board material.
As a result, the base structure satisfies the predetermined fire resistance standard.

In the present invention, the form of the bonding base material is further limited.
That is, the angle formed between the ridge portion of the joining base material and the respective flat portions on both sides is 90 degrees or less, but the angle is limited to the range of 86.2 degrees to 82.5 degrees. is there.
In the present invention, the joining base material is further limited, that is, the joining base material is formed by press-forming a thin steel plate, and the thickness of the steel plate used ranges from 0.3 mm to 0.8 mm. It is what it was.

  As described above, since the both side edges of the flat portion of the bonding base material in the present invention are bent more toward the surface side than the lower end portion of the central ridge portion, the end portion of the board material is set to this flat portion. When a screw or the like is used, the flat portion is drawn to the board material side, so that the flat portion does not undulate, and the board material and the flat portion are fixed in a close contact state.

According to a second aspect of the present invention, an adhesive is applied to the surface side of the flat portions on both sides of the bonding base material, and the ends of the board material are attached to each other and bonded to each other. It is characterized in that the material is screwed or nailed, whereby the bonding and fixing between the bonding base material and the board material becomes stronger, the strength of the bonding part increases, and the side of the base structure is Even if a shearing force is applied from the direction, the displacement of the joining portion is reduced, cracks and the like are less likely to occur, and the problem of cross cracking can be prevented.

According to a third aspect of the present invention, a joining base material used in the above-described construction method is specified, and a joining base material made of a metal plate material having a substantially T-shaped cross section is used to form a base structure. By constructing the body, the end portion of the board material and the flat portion of the joining base material are joined and fixed in a tight contact state, and there is no possibility that a gap is generated between the two.

A plaster board as a wall board material is laterally pasted on a frame material for a wall foundation consisting of a horizontal beam and a vertical beam, and a foundation structure constructed by the construction method according to the present invention is shown. It is a front view in the state where a board was removed. 2A and 2B show a joining base material used in the construction method according to the embodiment, wherein FIG. 1A is a perspective view and FIG. 1B is a cross-sectional view. It is explanatory drawing which illustrates the principal part of the construction method concerning this invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 shows a foundation structure constructed by a construction method according to the present invention in which a gypsum board as a wall board material is laterally attached to a frame material for a wall foundation composed of a horizontal beam and a vertical beam. It is a front view in the state where the plaster board of the middle left was removed.

In FIG. 1, a gypsum board 4 as a wall board material is joined to the right side in the figure, and the gypsum board is not yet joined to the left side thereof. The joining base material 1 is located substantially at the middle of the two vertical rails 5, 5, at the boundary between the left and right gypsum boards 4 (between the joining ends 4 t).
The joining base material 1 is disposed between the horizontal rail 6 and the back surface of the joining end 4t of the gypsum board 4.

As will be described with reference to the following figures, the joining base material 1 is a long sheet made of a thin steel plate having a substantially T-shaped cross section, and has a ridge 1t extending to the center in the longitudinal direction thereof, and a ridge 1t. It consists of flat portions 1h and 1h extending to both sides of 1t.
Although not discriminated in FIG. 1, the left and right side edges of both flat portions 1h are slightly bent toward the front of the drawing.

Then, the joining end 4t of the gypsum board 4 is brought into contact with and joined to the right side surface of the ridge portion 1t of the joining base material 1 and the right flat surface portion 1h.
In this state, a screw 7 or a nail is hit at a predetermined position in the longitudinal direction of the joint end 4t of the gypsum board 4.
The screw 7 is struck at a position supported by the cross bar 6 arranged in a direction orthogonal to the joining end 4t, and at an appropriate position between the cross bars 6, 6.

The position of the cross rail 6 can be grasped through the left open portion of the joining base material 1.
As a result, the gypsum board 4 is integrated with the joining base material 1 and the base frame material (the horizontal rail 6).

In FIG. 1, a left gypsum board (not shown) is fixed to a base frame material (horizontal rail 6) via a bonding base material 1, similarly to the right gypsum board 4.
That is, the right joining end of the gypsum board is joined to the left flat portion 1h of the joining base material 1, and the joining end surface of the gypsum board is brought into contact with the side surface of the ridge 1t of the joining base material 1. , Is fixed by screwing into a predetermined position.

The position of the horizontal rail 6 is referred to the screwing position of the gypsum board 4 on the right side.
In this manner, in the wall foundation structure according to the present embodiment, the gypsum board is screwed into the joining foundation material 1 and fixed as the wall foundation structure.
In this construction method, an adhesive may be applied to the flat portions 1h and 1h on both sides of the joining base material 1 in advance.

  In this case, the bonding between the flat portion 1h of the bonding base material 1 and the gypsum board 4 becomes stronger, and the gypsum board 4 is cut into a predetermined length before being screwed and nailed to the base material. Compared with the conventional example, the workability is remarkably excellent.

In addition, when a plaster board is stuck vertically, the horizontal rail of the above-mentioned use example may be replaced with a vertical rail, and the vertical rail may be replaced with a horizontal rail.
As described above, the joining base material 1 is disposed between the vertical bars 5 and used. However, the joining base material 1 made of a steel plate having a substantially T-shaped cross section is used as the joining material. Alternatively, it is also possible to work by overlapping and joining on the horizontal rail 6, and in this case, the gypsum board 4, the joining base material 1, and the vertical rail 5 or the horizontal rail 6 are simultaneously screwed together and installed. .
Also in this case, an adhesive may be applied to the flat surface of the joining base material 1.

  As described above, in the present invention, the joining base material 1 made of a long steel plate having a substantially T-shaped cross section is arranged on the lower surface of the joining end 4t of the gypsum board 4, and the joining base material is formed. 1, or by screwing together with the joining base material 1 and the vertical bar 5 or the horizontal bar 6, the wall base structure can be completed.

2A and 2B show a joining base material used in the construction method according to the embodiment, wherein FIG. 2A is a perspective view and FIG. 2B is a cross-sectional view. The hatching indicating the cross section is omitted.
From this figure, the form of the joining base material used in the construction method according to the present invention can be seen.

As described above, the joining base material 1 is an elongated member made of a thin steel plate having a substantially T-shaped cross section, and a ridge 1t extending to the center in the longitudinal direction, and both sides of the ridge 1t. And 1h, 1h.
As can be seen from FIG. 2 (B), it has a left-right symmetric shape, but the left and right flat portions have different lengths in the width direction, and it is also possible to use asymmetric ones.

The left and right side edges 1s, 1s of the flat surfaces 1h, 1h are slightly bent toward the ridge 1t side (surface side).
In this embodiment, the angle θ1 between the ridge portion 1t and the flat portion 1h is optimally in the range of 86.2 degrees to 82.5 degrees. Therefore, θ2 is in a range from 3.8 degrees to 7.5 degrees.

This joining base material 1 is manufactured by press-forming using a thin steel plate, and the thickness thereof is optimally in the range of 0.3 mm to 0.8 mm.
Further, the length of the bonding base material 1 used here is 1815 mm to 1995 mm, and its lateral width is about 92 mm and the height of the ridge is about 6 mm.
Of course, these numerical values are merely examples, and the design can be changed as appropriate.

  The ends of the gypsum board are joined on the flat portions 1h and 1h on both sides of the joining base material 1, and the end surfaces of the ends of the gypsum boards abut the side surfaces on both sides of the ridge 1t.

  Since the flat portion 1h is formed at an angle slightly smaller than the right angle with the protruding ridge portion 1t, when the end of the gypsum board is screwed, the flat portion 1h of the joining base material 1 is formed. It is possible to prevent the waving between the screw drivings from being reduced, and to prevent the occurrence of a gap between the gypsum board and the flat portion 1h of the joining base material 1.

FIG. 3 is an explanatory diagram illustrating a main part of the construction method according to the present invention.
FIG. 3 illustrates a state immediately before the end of the gypsum board 4 is brought into contact with one side (the right side in the figure) of the joining base material 1 and joined.

  That is, the joining base material 1 is made of a long thin steel plate having a substantially T-shaped cross section. The back surface of the end portion 4t of the gypsum board 4 is joined to the flat portion 1h of the joining base material 1 by gypsum. The end surface 4y of the end 4t of the board 4 is brought into contact with the side surface of the ridge 1t of the joining base material 1.

After that, it is fixed by screwing.
At this time, the flat portion 1h of the bonding base material 1 has its side edge standing on the front surface side as described with reference to FIG. The flat surface portion 1h of the joining base material 1 does not undulate, and the flat surface portion 1h is tightly screw-bonded to the end back surface of the gypsum board.

  Before the end of the gypsum board is screwed onto the flat surface of the joining base material, it is also possible to apply an adhesive to the surface of the flat surface in advance, and this point has already been described above. Described.

  As described above, according to the present invention, a joining base material made of a steel plate having a substantially T-shaped cross section is interposed between joining ends of gypsum boards that are not supported by a vertical bar or a horizontal bar, or A joining base material is interposed between the joining ends of the gypsum boards on the upper surface of the girder or the horizontal girder, and the gypsum board and the joining girder are screwed with each other, or thereafter, both the vertical girder or the horizontal girder is connected. Both are screwed at the same time, and the gypsum board and the joining base material and / or the base frame material are integrated.

As a result, when the flat portion of the joining base material is screwed, the waving is prevented from decreasing, and further, the whole is excellent in strength with respect to various acting forces, and provides a base wall structure that is less likely to crack. You can do it.

The embodiment of the method of applying the underlayer structure of the present invention and the underlayer material for joining used in the embodiment have been described above. However, in this embodiment, various design changes can be made.
First, the base structure according to the present invention can be used for any structure of a wall or ceiling or the like where a board material such as a gypsum boat is attached as an interior of a building.

Although gypsum board has been exemplified as the board material, various other board materials can be used.
The joining base material arranged on the back surface of the joining end portion of the board material is very important in the construction method according to the present invention, and the joining base material has a long T-shaped cross section. Although a steel plate is used, the size of the steel plate can be appropriately changed as needed.

  The cross-sectional shape does not have to be symmetrical. Even if the left and right (width direction) lengths of the flat portions on both sides are different, there is no problem in the effect, that is, both side edges of the flat portions on both sides are ridges. It suffices that both flat portions are formed at a predetermined angle at a position slightly higher than the lower end portion, and the angle between the ridge portion and the flat portion is slightly smaller than 90 degrees.

  With this configuration, the problem which has existed conventionally, that is, the waving phenomenon of the flat portion at the time of screwing between the flat portion of the joining base material and the end portion of the board material is prevented, and the end portion of the board material and the joining base material are prevented. Is made in close contact with the flat part.

  At the time of joining the end portion of the board material to the flat portion of the joining base material, it is also possible to apply an adhesive in advance on the surface side of the flat portion, and it is extremely preferable to improve the strength.

  Lastly, the joining base material used in the present invention is obtained by press-forming a single long steel plate when forming a substantially T-shaped cross section. Is not particularly required to be a press-formed product, but may be any as long as it has a predetermined angle on both sides of the ridge portion and a flat portion extends on both sides.

  As described above, in the method of constructing a foundation structure according to the present invention, by using a special-form joining foundation material made of a long steel plate having a substantially T-shaped cross section, the foundation such as a wall or a ceiling can be obtained. In the construction of the structure, when the flat portions on both sides of the joining base material and the joining end portion of the board material are screwed together, it is possible to prevent the waving phenomenon that occurs when the flat portion is screwed, and the flat portion is used for the board material. That can be provided in close contact with the end of the base material, and that the displacement of the joint portion of the board material is extremely small, and that the cracks of the board and the cloth are extremely small, and that the base material for joining can be provided. It is.

DESCRIPTION OF SYMBOLS 1 Joining base material 1t Ridge part 1h Flat part 1s Side edge part 4 Gypsum board (board material)
4t end 4y end 5 vertical bar 6 horizontal bar

Claims (3)

After assembling the base frame material such as a vertical crossbar and a horizontal crossbar, in a construction method of a substructure, in which a rectangular board material is formed by abutting each other in a longitudinal direction or a lateral direction and joining each other in a planar shape ,
Prepare a joining base material made of a metal plate material with a substantially T-shaped cross section,
This joining base material is provided with flat portions extending to both sides from a lower end of a substantially centrally extending ridge portion, and both side edges of these flat portions are arranged at lower ends than a lower end portion of the central ridge portion. Is also located at a high position, the angle between the ridge portion and the flat portion is provided with a predetermined angle of 90 degrees or less,
This joining base material is disposed on the back surface of the butt joint portion of the board material,
The back surface of the side edge portion of the board material is joined to the flat portions on both sides of the joining base material, and the end surface of the side edge portion of the board material is arranged so as to contact the both side faces of the ridge portion of the joining base material. Set up
Then, by screwing or nailing the board material and the joining base material and / or the base framing material, the flat portion of the joining base material and the board material are joined and fixed in a close contact state ,
A predetermined angle between the ridge portion and the flat portion is in a range of 86.2 degrees to 82.5 degrees;
The method of constructing a base structure, wherein the joining base material is manufactured by press-forming a thin steel plate, and the thickness of the steel plate is set in a range of 0.3 mm to 0.8 mm .   After applying an adhesive to the surface side of the flat part on both sides of the joining base material, the ends of the board material are attached to each other and bonded, and thereafter, the board material is screwed or nailed. The method according to claim 1, wherein the foundation structure is constructed. Bonding base material used in the construction method of the base structure according to claim 1 or 2.