JP5833515B2 - Beam and joist connection structure, building - Google Patents

Description

  The present invention relates to a building having a connection structure of beams and joists and a floor having the connection structure.

  Conventionally, for example, as a connection structure between a beam and a joist as in the upper floor of a prefab house, a mounting hardware (panel support bracket 17) is fixed to the beam (beam material 16 on the floor) shown in Patent Document 1. It is known that a joist (frame member 20) is placed on the upper surface of the mounting hardware, and a plate member (face member 21) is placed on the upper surface of the joist. In addition, in the invention described in Patent Document 1, the floor panel 2 having the joists on the plate material is configured by attaching the face material 21 to the upper surface of the frame member 20, but the plate materials and joists are panelized. It does not have to be.

JP-A-10-238002 ([0010], [0023], FIG. 2)

  In the conventional connection structure of the beam and joist, when connecting the joist to the beam, the mounting hardware is first attached and fixed to the beam, and the joist is placed and fixed on the fixed mounting hardware. . For this reason, the work for attaching the mounting hardware to the beam is required, and the mounting hardware is required, which requires a lot of work and requires many members.

  As for joists, hollow metal joists with high strength and rigidity are mainly used. However, they often require cutting and other processing depending on the site, so that kimono joists are used together with metal joists. . However, the mounting hardware is assumed to be a hollow metal joist as a joist to be placed and fixed, and is not used for placing or fixing a wooden joist. For this reason, the connection to the beam is different between the metal joist and the wooden joist, and the work efficiency cannot be improved.

The present invention has been invented in view of the above-mentioned conventional problems, and its object is as follows.
It is an object of the present invention to provide a building having a connection structure of beams and joists that can simplify and improve the efficiency of work and reduce the number of members, and a floor having the connection structure.

In order to solve the above-mentioned problems, the invention according to claim 1 includes a beam 1, a metal joist 3 placed on the upper surface of the beam 1 and a plate member 5 placed on the upper surface, and an upper surface of the beam 1. , And the beam 1 has an upper flange 12 and an insertion hole 14 through which the bolt 7 is inserted is formed in the upper flange 12. A bolt fixing portion having a female screw to which the bolt 7 is screwed is provided on the lower surface of the metal joist 3, and a bolt fixing portion having a female screw to which the bolt 7 is screwed is provided on the lower surface of the wooden joist 4. The diameter of the female screw provided on the metal joist 3 and the diameter of the female screw provided on the wooden joist 4 are the same diameter, and the bolt 7 is inserted through the insertion hole 14 formed in the upper flange 12. Before being placed on the upper surface of the upper flange 12 The metal joist 3 is screwed into the bolt fixing portion, and the bolt 7 is inserted through the insertion hole 14 formed in the upper flange 12 and mounted on the upper surface of the upper flange 12. characterized Rukoto is screwed into the bolt fixing part.

  The invention according to claim 2 is the invention according to claim 1, wherein the beam 1 is formed of an H-shaped steel having a web 11, an upper flange 12, and a lower flange 13, and the web 11 of the upper flange 12 is The upper surface on one side of the both sides sandwiching the connected portion becomes the mounting surface 15 on which the end portion of the single joist 2a is mounted, and the portion of the upper flange 12 to which the web 11 is connected The upper surface of the other side of the sandwiched sides is a mounting surface 16 on which an end of another joist 2b different from the one joist 2a is placed.

The invention according to claim 3 is the invention according to claim 1 or 2 , wherein the plate member 5 is fixed to one or both of the metal joists 3 and the wooden joists 4 to constitute a floor panel P. It is characterized by.

The building which concerns on Claim 4 is equipped with the floor which has the connection structure of the beam and joist as described in any one of Claim 1 thru | or 3 .

  In the invention according to claim 1, the work can be simplified and improved in efficiency, and the number of members can be reduced.

  In the invention which concerns on Claim 2, even when a joist is directly mounted on the upper surface of a beam, two joists can be connected to one beam.

In the invention which concerns on Claim 3 , it is not necessary to mount and fix a board | plate material to a joist on the spot, and can attain simplification of an operation | work.

In the invention which concerns on Claim 4 , in construction of the floor of a building, simplification of work, efficiency improvement, and reduction of a number of members can be aimed at.

It is a perspective view of the beam in one embodiment of the present invention. It is sectional drawing of the metal joist in the same as the above. It is sectional drawing of Kineta in the same as the above. It is a perspective view of the state which mounted the floor panel provided with the metal joist on a beam in the same as the above. It is a perspective view of the state which mounted the floor panel provided with tree joist on a beam in the same as the above. It is principal part sectional drawing of the state by which joist (floor panel) was mounted in the beam. It is other embodiment and it is principal part sectional drawing of the state in which the floor panel provided with the wood joist and the floor panel provided with the metal joist was mounted in the beam.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  In the present embodiment, beam 1 and joist 2 will be described as beam 1 and joist 2 on the upper floor of the prefab house.

  As shown in FIG. 1, the beam 1 is a H-shaped steel having a web 11 and an upper flange 12 and a lower flange 13 at upper and lower ends of the web 11 in this embodiment, but is a C-type channel material or the like. The shape is not particularly limited. Moreover, although steel materials are used suitably as the beam 1, the kind of steel materials is not limited and another metal and composite material may be sufficient. The beam 1 is installed on a structural material such as a column with the upper flange 12 facing upward and the lower flange 13 facing downward.

  In the present embodiment, an insertion hole 14 through which a bolt 7 for connecting the beam 1 and the joist 2 is inserted is formed in the upper flange 12 of the beam 1. The insertion holes 14 are respectively formed on both sides of a portion of the upper flange 12 where the web 11 is connected. Then, the upper surface of the upper flange 12 becomes the mounting surface of the joist 2.

  In the present invention, the metal joist 3 and the kinet joist 4 are used as the joist 2. In the present embodiment, the metal joist 3 is formed of a hollow iron material (steel material) having a square cross section as shown in FIG. 2, but the metal joist 3 of the present invention has a square cross section. The shape is not particularly limited, such as a C-type channel material, and the material may be another metal or a composite material. An insertion hole (not shown) through which the bolt 7 for connecting the beam 1 and the joist 2 can be inserted is formed in the lower piece 31 of the metal joist 3, and the insertion of the inner surface (upper surface) of the lower piece 31 is made. Around the hole, a bolt fixing portion (in this embodiment, a nut 32) having a female screw screwed with the bolt 7 is fixed. In this embodiment, the nut 32 is fixed to the lower piece 31 to form the bolt fixing portion. However, instead of the nut 32, a block-like member having an internal thread is fixed, or the lower piece 31 is formed thick. A bolt fixing portion may be formed by forming an internal thread on the lower piece 31.

  In this embodiment, as shown in FIG. 3, Kineta 4 is made of solid wood or wood material having a substantially rectangular cross section. In addition, although the cross-sectional shape of Kineta 4 is preferably a rectangular shape, it is not limited to a rectangular shape, and any shape having a horizontal plane on the upper surface and the lower surface may be used. A bolt fixing portion (demon nut 41 in this embodiment) having a female screw with which the bolt 7 is screwed is embedded in the lower surface of the Kineta 4. In this embodiment, the demon nut 41 is embedded in the lower surface of the Kineta 4 to form the bolt fixing portion. However, by embedding a normal nut 32 or a block-shaped member formed with a female screw. A bolt fixing portion may be formed.

  The bolt 7 used to connect the metal joist 3 to the beam 1 may be different from the bolt 7 used to connect the wooden joist 4 to the beam 1, but it is preferable that the same bolt 7 can be used. . In this case, the diameter of the female screw of the bolt fixing part provided on the metal joist 3 is the same as the diameter of the female screw of the bolt fixing part provided on the wooden joist 4.

  Thereby, the volt | bolt 7 of the same diameter can be used in common and a common member can be achieved. Further, the insertion hole 14 formed in the upper flange 12 of the beam 1 may be formed in accordance with the common bolt 7 having the same diameter, so that the insertion hole 14 can be made common, and a plurality of different diameters are provided. There is no need to drill the kind of insertion hole 14.

  As shown in FIGS. 4 and 5, a plate material 5 is placed on the upper surface of the metal joist 3 and the wooden joist 4 (hereinafter simply referred to as the joist 2 together). In the present embodiment, the plate material 5 As a wood board, a floor board is used. The material of the plate material 5 is not particularly limited, such as solid wood, a wooden material such as particle board or MDF (Medium Density Fiberboard), or a concrete such as ALC (Autoclaved Lightweight Concrete). Moreover, the board | plate material 5 is not restricted to a floor board.

  In addition, although the board | plate material 5 may be mounted in the joist 2 on the spot, in this embodiment, the floor panel P by which the board | plate material 5 is previously fixed to the joist 2 is comprised. FIG. 4 is a perspective view of a state in which the floor panel P provided with the metal joists 3 is placed on the beam 1, and FIG. 5 is a perspective view of a state in which the floor panels P provided with the wooden joists 4 are placed on the beam 1. The figure is shown. The longitudinal length 3L of the metal joists 3 of the floor panel P provided with the metal joists 3 can be longer than the longitudinal length 2L of the wooden joists 4 of the floor panels P provided with the wooden joists 4. The length L is a unit of the module, and is set as appropriate, for example, 90 cm. Further, the interval between the metal joists 3 in the floor panel P provided with the metal joists 3 can be made longer than the interval between the wooden joists 4 in the floor panel P provided with the wooden joists 4.

  Next, the connection of the joist 2 to the beam 1 will be described.

  As shown in FIG. 6, the joist 2 has its lower surface placed on the upper surface of the upper flange 12 of the beam 1. In the case of the metal joist 3, the lower piece 31 is placed on the upper surface of the upper flange 12 of the beam 1. Then, from below, the bolt 7 for connecting the beam 1 and the joist 2 is inserted into the insert hole 14 formed in the upper flange 12 and the insert hole formed in the lower piece 31 of the metal joist 3, The nut 32 fixed to the lower piece 31 is screwed and fastened.

  In the case of Kineta 4, the lower surface is placed on the upper surface of the upper flange 12 of the beam 1. From below, a bolt 7 for connecting the beam 1 and the joist 2 is inserted into an insertion hole 14 drilled in the upper flange 12, and the female screw of the demon nut 41 embedded in the lower surface of the wooden joist 4 And are fastened.

  Thus, in the present invention, the metal joist 3 is directly placed on the upper surface of the beam 1, and the wooden joist 4 is also placed directly on the upper surface of the beam 1 in the same manner as the metal joist 3. The joist 2 is connected to the beam 1 without using any mounting hardware. Thereby, it becomes possible to abbreviate | omit the operation | work which attaches an attachment hardware to the beam 1, and can attain simplification of an operation | work. Further, since no mounting hardware is required, the number of members used can be reduced. In addition, it is possible to connect the metal joist 3 and the wooden joist 4 to the beam 1 in the same manner, which is different from the prior art, and the work efficiency can be improved.

  In the present invention, it is not always necessary to connect both the metal joists 3 and the wooden joists 4 to one beam 1, and in one building where a plurality of similar beams 1 are provided, one of the beams 1 has a metal joist. 3 and any one of the beams 1 may be provided with a tree root 4. Thereby, the said effect is acquired.

  Further, an insertion hole for the bolt 7 is drilled in the beam 1, the metal joist 3 is formed of a hollow member, a nut 32 is fixed to the lower piece 31, and a demon nut 41 is embedded in the lower surface of the kinet joist 4. Thus, the beam 1 and the joist 2 can be firmly and reliably fixed with a simple configuration.

  Further, in the present embodiment, as shown in FIG. 6, on the upper surface of the upper flange 12, one of the two sides across the portion to which the web 11 is connected is the joist 2 (one of the floor panels P). The joist 2a and the end of the metal joist 3 or the kinet joist 4) are placed on the placement surface (referred to as one placement surface 15; see FIG. 1), on both sides of the part to which the web 11 is connected. The other side portion is a mounting surface on which the end of the joist 2 of the floor panel P different from the one joist 2a (the other joist 2b, the metal joist 3 or the wooden joist 4) is placed (others) It is referred to as a mounting surface 16 (see FIG. 1). Then, the end of the single joist 2a is placed on the single mounting surface 15, the bolt 7 is fastened through the insertion hole 14 formed in the single mounting surface 15, and the single joist 2a is attached to the upper flange 12. Connected. Similarly, the end of another joist 2b is placed on the other placement surface 16, and the bolt 7 is fastened through the insertion hole 14 formed in the other placement surface 16, so that the other joist 2b is Connected to the flange 12. In the embodiment shown in FIG. 6, the floor finishing material 6 is placed on the plate material 5 of the floor panel P.

  Thus, in the past, mounting hardware was attached to both sides of the beam 1 and the joists 2 were placed and fixed on both mounting hardware, respectively, but the joists 2 were directly mounted on the upper surface of the beams 1 as in the present invention. Even in the case of placing, two joists 2 can be connected to one beam 1.

  Further, conventionally, the joists 2 are placed on the mounting hardware attached to both sides of the beam 1 and the eye plate is installed above the beam 1 ([0013] and [0014] of Patent Document 1). By referring to both joists 2 placed on the upper surface of the beam 1, it is possible to omit the eye plate.

  Further, in the embodiment shown in FIG. 7, one joist 2 a is made of tree joist 4 and the other joist 2 b is made of metal joist 3. And the notch 42 is formed in the part mounted in the upper flange 12 of the root joist 2a. In this way, by using the tree root 4 and appropriately forming the notches 42 in the tree root 4, for example, the height of the floor surface (the upper surface of the plate 5) is appropriately adjusted, and different floor finishing materials 6 are placed. Can do.

1 beam 11 web 12 upper flange 13 lower flange 14 insertion hole 2 joist 3 metal joist 31 lower piece 32 nut 4 kineta 41 demon nut 42 notch 5 plate material 6 finishing material 7 bolt P floor panel

Claims (4)

With a beam,
A metal joist placed on the upper surface of the beam and a plate material placed on the upper surface;
Kinoneta placed on the upper surface of the beam and a plate material placed on the upper surface,
Equipped with a,
The beam has an upper flange and an insertion hole through which the bolt is inserted is drilled.
A bolt fixing portion having a female screw into which the bolt is screwed is provided on the lower surface of the metal joist,
A bolt fixing portion having a female screw into which the bolt is screwed is provided on the lower surface of the tree joist,
The diameter of the female screw provided on the metal joist and the diameter of the female screw provided on the wooden joist are the same diameter,
The bolt is inserted into the insertion hole formed in the upper flange and screwed to the bolt fixing portion of the metal joist placed on the upper surface of the upper flange;
It said bolt beams and joists, characterized in Rukoto screwed to the bolt fixing portion of the Futoshi Kine placed on the upper surface of the upper flange by inserting the insertion hole formed in the upper flange Connection structure. The beam is formed of H-shaped steel having a web, an upper flange and a lower flange;
The upper surface on one side of both sides across the portion to which the web of the upper flange is connected is a mounting surface on which the end of one joist is mounted,
The upper surface on the other side of the upper flange across the portion to which the web is connected is a mounting surface on which an end of another joist different from the one joist is placed. The connection structure of a beam and joists according to claim 1 characterized by the above-mentioned. The connecting structure of a beam and a joist according to claim 1 or 2, wherein the plate member is fixed to one or both of the metal joists and the wooden joists to form a floor panel. A building comprising a floor having a connection structure of beams and joists according to any one of claims 1 to 3.

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