JP6402950B2 - Joist bearing hardware, floor structure, and construction method of floor structure - Google Patents

Description

  The present invention relates to a joist support that receives a joist laid on a floor beam, a floor structure using the joist support, and a construction method of the floor structure.

  Conventionally, a joist support is fixed to the side of the floor beam with a nail, and the joist support is supported by the joist so that the joist is flush with the joist. A floor structure in which a floor base panel is provided is known. In such a construction method, a buffering adhesive is injected between the joist receiving metal and the joists to prevent floor noise due to rubbing between the joist receiving metal and the joists.

  And in order to shorten the process of floor assembly work as described above and improve the workability, the joists are fixed to the lower surface of the floor foundation panel in advance, and the joists are fixed to the joists receiving fixtures fixed to the side surfaces of the floor beams. It has also been proposed to shorten the process by simultaneously applying the joists and floor base plate by dropping.

JP 2007-132159 A

  However, the process as described above is to drop the joist into the joist bracket fixed to the side surface of the floor beam in a state where the floor foundation panel is fixed on the joist, so the floor foundation panel becomes an obstacle. Because the work is in a state where the position of the joist and the joisting bracket hardware cannot be confirmed directly, if there is a slight deviation in the position of the joisting and joisting bracket hardware, the joisting bracket and joisting will not be through a buffering adhesive There was a risk of flooring due to contact.

  Therefore, the present invention provides a joist support, a floor structure, and a method for constructing a floor structure that can prevent the joist and the joist support from coming into contact even when the joist is fixed to the floor base panel in advance. The purpose is to do.

The joist support according to the present invention is a joist support that receives an end of a joist laid between floor beams, and is formed to protrude in a horizontal direction from a fixing portion that is fixed to the floor beam and the floor beam. A receiving part for receiving the end of the joist, and the receiving part rises from both side edges of the joist and faces each other with a distance larger than the width of the joist. A pair of side plates, and a pair of bulging portions that are respectively formed at the upper ends of the side plates and bulge in directions approaching each other, and the bulging portions are formed at a position higher than the upper surface of the end of the joist. The bulging portions are curved in a direction approaching each other, and the upper portions are curved in a direction away from each other, and the distance between the closest positions of the pair of bulging portions is the joist. Shorter than the width of the It is characterized in longer than the width of the thickness.

  In addition, the joist bracket of the present invention is characterized in that a cushioning material is provided on the bottom plate.

  The floor structure of the present invention includes floor beams arranged in parallel at intervals, the joist support fixed to the side surface of the floor beam, and a floor foundation panel having joists fixed to the lower surface, The joist is characterized by having a notch portion whose upper surface of the end portion is notched downward.

The floor structure construction method of the present invention is the floor structure construction method described above , wherein the joist support is fixed to the floor beam arranged in parallel with a gap, and the joist is fixed to the lower surface. The floor foundation panel is lowered, the bottom edge of the joist is brought into contact with the bulging portion, and further, the floor foundation panel is lowered to elastically deform the pair of bulging portions in the direction of spreading each other. , Guide the side face of the joist to the bulging portion, and place the joist so as to be placed at the center in the width direction of each joist receiving bracket, and fix the floor foundation panel to the floor beam. It is characterized by.

  According to the joisting bracket hardware of the present invention, when the joist end is inserted into the joisting bracket receiving part from above, the position of the joist is guided by the bulging portion formed at the upper end of the side plate of the joisting metal fitting. Therefore, the end of the joist can be installed in the center of the joist receiving bracket, and the side plate of the joist receiving fixture is formed with a distance greater than the width of the joists, so there is a gap between the side plate and the joists. Can be provided. Therefore, it is possible to prevent the floor noise from occurring due to rubbing between the joist and the side plate.

  In addition, according to the joist bracket metal fitting of the present invention, since the shock absorbing material is provided on the bottom plate, the shock absorbing material is disposed between the bottom surface of the joist end portion and the bottom plate of the joist metal receiving hardware, as described above. In addition, since a gap is provided between the side face of the joist and the side plate of the joist receiving metal, the joist receiving metal and the joists do not come into contact with each other, and floor noise can be prevented. Since a gap is formed between the joist side surface and the side plate of the joist receiving metal fitting, the shock absorbing material may be provided only on the bottom plate of the joists receiving metal fitting, and the shock absorbing material can be easily arranged. Here, the buffer material may be a wet material such as a resin adhesive, or may be a dry material such as a flexible solid resin.

  Furthermore, according to the joist bracket hardware of the present invention, since the distance between the pair of bulges is shorter than the joist width, when the joist is inserted into the joist bracket from above, the end of the joist is placed on the bulge. The joists are elastically deformed so that the portions abut and the distance between the bulging parts is increased, and the joists can be reliably guided to the center in the width direction of the joists. And since the bulging portion is formed at a position higher than the upper surface of the end of the joist, when the lower surface of the end of the joist comes into contact with the cushioning material provided on the bottom of the joist receiving hardware, the end of the joist Since the upper surface of this is disposed at a position lower than the bulging portion and a gap is provided between the end portion of the joist and the bulging portion, floor noise can be prevented.

  According to the floor structure of the present invention, the upper surface of the end of the joist has a notch that is notched downward, so that the upper surface of the end of the joist is bulged with the upper end of the joists without reducing the overall height of the joist. It can arrange | position in a position lower than an exit part, and the contact with the end part of a joist and a joist receiving metal fitting can be prevented, preventing the fall of the intensity | strength of a floor structure.

  In the floor structure construction method of the present invention, a joist support is fixed to floor beams arranged in parallel at intervals, and a floor foundation panel with joists fixed to the lower surface is provided. Since the floor foundation panel is fixed to the floor beam, even if the operator cannot directly see the end of the joist and the joister bracket with the floor foundation panel, The position of the end of the joist can be reliably guided to the center in the width direction of the joist support by the bulging part of the jolt, and the contact between the joist and the joist support can be prevented, and floor noise can be prevented. it can.

The perspective view which shows the whole structure of a joist receiving metal fitting. (A) is a front view which shows the whole structure of a joist receiving hardware, (B) is a side view. The perspective view which shows the structure of a floor foundation panel and joist. (A) is a side view showing the configuration of the floor foundation panel and joists, and (B) is a side view showing an example using joists having different dimensions from (A). Sectional drawing which shows the whole structure of a floor structure. The II sectional view taken on the line which shows the end of a joist and the dimension of a joist receiving metal. The perspective view which shows the state before fixing the floor foundation panel by which the joist was fixed to the lower surface to a floor beam and a joist receiving bracket. The side view which shows the state before fixing the floor foundation panel by which the joist was fixed to the lower surface to a floor beam and a joist receiving bracket. The figure which shows the state before inserting the edge part of a joist into a joist receiving metal fitting. The figure which shows the state in the middle of inserting the edge part of a joist into a joist receiving metal fitting. The figure which shows the state which inserted the end part of the joist into the joist receiving metal fitting.

  Hereinafter, the best embodiment of the construction method of the joist support 1, the floor structure 2, and the floor structure according to the present invention will be described with reference to the drawings. In the floor structure 2 in the present embodiment, for example, a joist support 1 is provided on a floor beam 3 of a house, and joists 5 fixed to the lower surface of the floor base panel 4 are inserted into the joist support 1 from above, It is a floor structure 2 that receives a joist 5 by a joist receiving hardware 1. The floor structure 2 may be a floor structure that supports the floor of the first floor or a floor structure that supports the floor of the second floor or more.

  The joist support 1 includes a fixing portion 6 that is fixed to a side surface of the floor beam 3 and a receiving portion 7 that protrudes from the floor beam 3 in the horizontal direction and receives an end of the joist 5. As shown in FIG. 1 and FIG. 2 (A), the fixing portion 6 is a plate that spreads on both sides from the position where it abuts against the floor beam 3 of the side plate 10 of the receiving portion 7, and fixes the joist support 1 to the floor beam 3. Three screw holes 8 are formed side by side in the vertical direction.

  As shown in FIGS. 1 and 2, the receiving portions 7 are respectively formed on the bottom plate 9 on which the bottom surface of the joist 5 is placed, the pair of side plates 10 rising from both side edges of the bottom plate 9, and the upper ends of the side plates 10. It has the bulging part 11 which bulges in the direction which mutually approaches. The receiving portion 7 is formed by bending a steel plate. When the joist receiving metal 1 is fixed to the floor beam 3, the bottom plate 9 is a horizontal flat plate and can receive the end of the joist 5. Is formed. And the side board 10 is arrange | positioned so that the distance (beta) between a pair of side boards 10 may become longer than the width | variety (alpha) of the joist 5 so that it may arrange | position with a clearance gap in parallel with the side surface of the joist 5.

  As shown in FIGS. 1 and 2A, the bulging portion 11 is formed such that the upper ends of the side plates 10 are curved in a direction approaching each other, and the upper portions thereof are curved in a direction away from each other. The length of the side plate 10 in the height direction is longer than the height of the end portion of the joist 5, and the bulging portion 11 formed at the upper end of the side plate 10 is disposed at a position higher than the upper surface 5 a of the end portion of the joist 5. Is done. Further, the bulging portion 11 is formed such that the distance γ between the closest positions is shorter than the width α of the joist 5.

  A buffer material 12 is fixed on the bottom plate 9 of the receiving portion 7. The cushioning material 12 may be, for example, an adhesive having elasticity after curing, such as a modified silicon elastic adhesive, or may be an elastic body previously formed into a flat plate shape. The buffer material 12 is provided only on the bottom plate 9 and is not provided on the side plate 10 and the bulging portion 11. This is because the gap is surely formed between the side plate 10 and the joist 5, so that there is no possibility that the side plate 10 and the joist 5 are rubbed and floor noise is generated, and it is not necessary to provide the cushioning material 12. By not providing the cushioning material 12 on the side plate 10 and the bulging portion 11 in this way, it is possible to reduce the construction labor.

  The joist support 1 may be fixed to the floor beam 3 with a screw (not shown) in the factory in advance and may be carried into a construction site, or may be fixed to the floor beam 3 with a screw at the construction site. The position where the joist support 1 on the floor beam 3 is installed is a position where the joist 5 is installed on the floor beam 3, and the upper surface of the intermediate portion of the joist 5 inserted into the joist support 1 and the upper surface of the floor beam 3. It is installed so that and become the same.

  As shown in FIGS. 3 and 4, the joist 5 is a square bar, and is formed with a notch portion 13 having an upper end portion notched downward at both ends. The notch 13 is formed by cutting downward from the upper surface at the end of the joist 5 and by cutting in the horizontal direction from the facet of the joist 5 and cutting the upper corner at a right angle. That is, the joist 5 is formed such that the lower surface is flush with the upper surface, and the notch portions 13 are formed at both ends of the upper surface so that the upper surface 5a at the end is lower than the upper surface of the other part. .

  As shown in FIG. 5, the width α of the joists 5 is shorter than the distance β between the side plates 10 of the joists 1 and the closest distance γ between the bulging portions 11 of the joists 1. long. Further, the upper surface 5 a of the end portion of the joist 5 is lower than the bulging portion 11 of the joist receiving piece 1, and when the end of the joists 5 is inserted into the joist receiving piece 1, the end portion of the joists 5 is the bulging portion 11. It is a shape that does not touch. The length of the notch 13 in the longitudinal direction of the joist 5 is longer than the length of the bulged portion 11 in the longitudinal direction of the joist 5, and the bulged portion 11 does not contact the end of the joist 5. The intermediate portion of the joist 5 is formed with a top surface higher than the end portion, and the strength of the joist 5 is ensured, but as shown in FIGS. The height can be appropriately selected according to the strength required for the floor structure 2 and the beam of the floor beam 3.

  The floor foundation panel 4 is a plate material that is carried into the construction site from the factory with the joists 5 fixed to the lower surface in advance. As shown in FIG. 3, two joists 5 are fixed to the floor foundation panel 4 along the length direction of the floor foundation panel 4. One of the two joists 5 is fixed to the center of the floor base panel 4 in the width direction, and the other of the two joists 5 is fixed to one edge of the floor base panel 4. The other joist 5 has one half in the width direction fixed to one edge of the floor foundation panel 4 and the other half protruding from the edge of the floor foundation panel 4. The other edge of the adjacent floor foundation panel 4 is the other edge. It is formed so that it may be mounted in the part which protruded from the floor base panel 4 of the joist of No.5.

  In addition, the floor beam 3 is a horizontal square member that receives a floor load, and although not illustrated, the end portion is fixed to a column or another beam by a beam receiving object. As shown in FIG. 5, a plurality of floor beams 3 are arranged in parallel at intervals, and the floor beam 3, the joist support 1 fixed to the side surface of the floor beam 3, and the joist 5 on the lower surface. The floor structure 2 is constituted by the fixed floor foundation panel 4.

  The construction method of the floor structure having the above-described configuration is carried in from the factory to the construction site with the joist support 1 fixed to the floor beam 3, and the joist support 1 is aligned with the position where the joist 5 is installed. As described above, the end of the floor beam 3 is joined to another beam, a column, or the like, and the plurality of floor beams 3 are installed in parallel. In this embodiment, the joist support 1 is fixed to the floor beam 3 at the factory, but is not limited to this, and may be fixed to the floor beam 3 at the construction site. After the floor beams 3 are arranged in parallel at intervals, the joist support 1 may be fixed.

  Then, with the joist 5 fixed to the lower surface of the floor foundation panel 4, the floor foundation panel 4 is carried into the construction site from the factory. In addition, the process of fixing the joist 5 to the lower surface of the floor base panel 4 is not limited to a process performed in a factory. For example, after the floor base panel 4 is carried into a construction site, the joist is applied to the lower surface of the floor base panel 4. 5 may be fixed.

  As shown in FIGS. 7 to 9, the floor foundation panel 4 to which the joists 5 are fixed is lifted by a crane, for example, and the position of the joists 5 fixed to the lower surface of the floor foundation panels 4 is fixed to the floor beams 3. It arrange | positions so that it may come above the joist receiving metal fitting 1 which exists. Then, the floor base panel 4 is gradually lowered, and the ends of the joists 5 are inserted into the joists support 1 as shown in FIG. At this time, since the distance γ of the closest approach position between the pair of bulging portions 11 formed in the receiving portion 7 of the joist bracket 1 is shorter than the width α of the joists 5, the floor base panel 4 is lowered. Then, the lower end edge of the joist 5 comes into contact with the bulging portion 11. When the floor foundation panel 4 is further lowered, the pair of bulging portions 11 are elastically deformed in a direction in which the pair of bulging portions spread to each other, and the joists 5 are lowered so that the bulging portions 11 are transmitted along the side surfaces of the joists 5. At this time, since the pair of bulging portions 11 are in contact with both side surfaces of the joist 5, the joist 5 is guided to the center of the joist support 1.

  When the floor foundation panel 4 is further lowered, the lower surface of the joist 5 comes into contact with the cushioning material 12 provided on the bottom plate 9 of the receiving portion 7 of the joist receiving metal 1 and the joist 5 is moved by the joist receiving metal 1. receive. An end portion of the joist 5 is formed by a notch 13 so that the upper surface 5 a is lower than the bulging portion 11, and the distance β between the pair of side plates 10 of the receiving portion 7 of the joist support 1 is greater than the width α of the joist 5. Also, the side face of the joist 5 does not come into contact with the joist support 1 and is placed on the joist support 1 on the lower face of the joist 5 via the cushioning material 12. Therefore, the joist 5 is not in contact with the joist receiving hardware 1. Therefore, it is possible to prevent occurrence of floor noise due to rubbing between the joist 5 and the joist receiving metal 1.

  In this way, the bulging portion 11 is provided in the joist receiving metal 1 to guide the position of the joist 5 and the notch 13 is provided at the end of the joisting 5 so that the end of the joist 5 and the joist receiving metal 1 are In the construction method of the floor structure in which the joist 5 is fixed to the lower surface of the floor base panel 4 in advance because the contact is prevented, the end of the joist 5 and the joist receiving hardware 1 cannot be visually recognized by the floor base panel 4. However, the joist 5 can be disposed at the center of the joist receiving metal 1 and the end of the joist 5 and the joist receiving metal 1 can be reliably prevented from contacting each other.

  Needless to say, the embodiment of the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the scope of the idea of the present invention.

  The joist support 1, the floor structure 2, and the floor structure construction method according to the present invention can be suitably used, for example, when constructing a floor structure of a house.

DESCRIPTION OF SYMBOLS 1 Joist receiving metal 2 Floor structure 3 Floor beam 4 Floor base panel 5 Joist 6 Fixed part 7 Receiving part 9 Bottom plate 10 Side plate 11 Bumping part 12 Buffering material 13 Notch part

Claims (4)

A joist receiving metal that receives the end of the joist laid between floor beams,
A fixing part for fixing to the floor beam;
A receiving portion that protrudes in a horizontal direction from the floor beam and receives an end of the joist, and
The receiving portions are formed on the bottom plate on which the bottom surface of the joist is placed, a pair of side plates that rise from both side edges of the base plate and face each other at a distance larger than the width of the joist, and are formed on the upper ends of the side plates, respectively. A pair of bulges that bulge in the approaching direction,
The bulging portion is formed at a position higher than the upper surface of the end of the joist,
The bulging portion is curved in a direction approaching each other, and the upper portion is curved in a direction separating from each other, and the distance between the closest positions of the pair of bulging portions is larger than the width of the joist. A joist receiving metal piece characterized in that the distance of the upper part is longer than the width of the joist.   The joist receiving metal fitting according to claim 1, wherein a cushioning material is provided on the bottom plate. Floor beams arranged in parallel at intervals, and
The joist support according to claim 1 or 2 , which is fixed to a side surface of the floor beam,
A floor foundation panel with joists fixed on the lower surface,
The joist has a notched part having an upper surface of the end part notched downward. It is a construction method of the floor structure according to claim 3,
The floor beams disposed in parallel at intervals, and fixing the joists receiving hardware,
Lowering the floor foundation panel with the joist fixed to the lower surface, and bringing the lower end edge of the joist into contact with the bulging portion,
Further, while lowering the floor base panel and elastically deforming the pair of bulging portions in the direction of spreading each other, the side face of the joist is guided to the bulging portion, and the joist is supported by each joist receiving bracket. Place it to be placed in the center of the width direction,
A construction method of a floor structure, wherein a floor foundation panel is fixed to the floor beam.

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