JP2020045683A - Floor slab/ceiling slab connection structure and woody slab unit - Google Patents

Abstract

To provide a floor slab/ceiling slab connection structure and a woody slab unit capable of constructing a long span without making thickness of a ceiling slab or a floor slab thicker.SOLUTION: A floor slab/ceiling slab connection structure comprises: a woody ceiling slab 12; a woody floor slab 14 placed on an upper surface of the ceiling slab 12; and a plurality of woody strengthening members 22 arranged between the ceiling slab 12 and the floor slab 14 and extending in a longitudinal direction of the ceiling slabs 12 and the floor slabs 14 and placed apart to each other in a direction orthogonal to the longitudinal direction. A woody slab unit 10 comprises: the woody ceiling slab 12; the woody floor slab 14; woody wall slabs 16 having respective upper end parts fixed with the ceiling slab 12, and respective lower end parts fixed with the floor slab 14; and a plurality of woody strengthening members 22 arranged on at least one of the upper surface of the ceiling slab 12 and the lower surface of the floor slab 14 and extending in a longitudinal direction of the ceiling slab 12 and the floor slab 14 and spaced apart to each other in a direction orthogonal to the longitudinal direction.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a joint structure of a floor slab and a wood block unit.

  2. Description of the Related Art In recent years, unit buildings have become widespread in order to enhance the workability of buildings. For example, Patent Literature 1 discloses a joint structure of a wooden floor panel in which a plurality of units are manufactured by assembling a wooden panel, and then the units are stacked to form a multi-layer living space.

JP 2000-230276 A

  In a unit building as disclosed in Patent Literature 1, the floor slab and ceiling slab are made of wood. Therefore, when the size of the unit is increased, that is, when the ceiling slab or floor slab is made to have a long span, the ceiling slab is used. In order to increase the rigidity of the floor slabs, it was necessary to increase the thickness of the ceiling slabs and floor slabs.

  In view of the above facts, an object of the present invention is to provide a joint structure of a slab and a wood block unit which can be made a long span without increasing the thickness of a slab or a slab.

  The joint structure of the floor slab according to claim 1, wherein the wooden slab, the wooden slab arranged on the upper surface of the ceiling slab, and provided between the ceiling slab and the floor slab, And a plurality of wooden reinforcing members extending in the longitudinal direction of the ceiling slab and the floor slab and spaced from each other in a direction orthogonal to the longitudinal direction.

  According to the above configuration, a reinforcing member extending in the longitudinal direction is arranged between the ceiling slab and the floor slab, and the ceiling slab and the floor slab are reinforced by the reinforcing member. Long span can be achieved without increasing the thickness of the ceiling slab and the floor slab as compared with the case where the slabs are overlapped. Further, the space between the ceiling slab and the floor slab can be used as an installation space for equipment piping and the like.

  The wood block unit according to claim 2, comprising a wood ceiling board, a wood floor board, and a wood wall board having the ceiling board fixed to an upper end and the floor board fixed to a lower end. A wood block unit in which a living space is formed, provided on at least one of the upper surface of the ceiling plate and the lower surface of the floor plate, and extending in the longitudinal direction of the ceiling plate and the floor plate, It has a plurality of wooden reinforcing members arranged at intervals in the direction perpendicular to each other.

  According to the above configuration, when the wooden block units are stacked to form a multi-layer living space, a reinforcing member extending in the longitudinal direction is arranged between the ceiling slab and the floor slab. In comparison, a long span can be achieved without increasing the thickness of the ceiling and floor slabs.

  The wood block unit according to claim 3 is the wood block unit according to claim 2, wherein the reinforcing members are provided on an upper surface of the ceiling plate, and are spaced from each other in a direction orthogonal to a longitudinal direction of the ceiling plate. It has a plurality of upper reinforcing members arranged apart and a plurality of lower reinforcing members provided on the lower surface of the floor slab and located between the upper reinforcing members.

  According to the above configuration, when the wood block units are stacked to form a multi-layer living space, the upper reinforcing member of the ceiling plate and the lower reinforcing member of the floor plate are alternately arranged (nested). Thereby, compared with the case where only one of the upper surface of the ceiling slab and the lower surface of the floor slab has a reinforcing member, a long span can be obtained without increasing the thickness of the ceiling slab and the floor slab.

  The woodblock unit according to claim 4 is the woodblock unit according to claim 2 or 3, wherein a lower fireproof layer is provided on a lower surface of the ceiling slab, and an upper fireproof layer is provided on an upper surface of the floor slab. Have been.

  According to the above configuration, when the woodblock units are stacked to form a multi-layer living space, the ceiling plate is provided by the lower fireproof layer provided on the lower surface of the ceiling plate and the upper fireproof layer provided on the upper surface of the floor plate. And the floor slab can have a fireproof structure. Therefore, it is not necessary to provide a fireproof layer on both sides of the ceiling slab and the floor slab.

  ADVANTAGE OF THE INVENTION According to the joining structure of a slab and a wood block unit according to the present invention, a long span can be achieved without increasing the thickness of the slab and the slab.

It is a disassembled perspective view which shows the joining structure of the floor slab and the wood block unit which concern on an example of embodiment. It is an expansion perspective view which shows the joining structure of the floor slab and the wood block unit which concern on an example of embodiment. FIG. 3 is a perspective view showing a partially enlarged wall slab in FIG. 2. FIG. 3 is an arrow view of the floor slab in FIG. 2 as viewed from a direction A.

  Hereinafter, a joint structure of a floor slab and a wood block unit in an example of an embodiment of the present invention will be described with reference to FIGS. 1 to 4. In addition, in order to clarify the features of each configuration, the dimensions of each configuration in the drawings are appropriately changed. For this reason, the scale in the figure is different from the actual one. In the drawings, the direction of arrow X indicates the longitudinal direction of the ceiling slab, and the direction of arrow Y indicates the direction (transverse direction) orthogonal to the longitudinal direction of the ceiling slab.

(Construction)
As shown in FIG. 1, the wood slab unit 10 of this embodiment has a wood ceiling slab 12, a wood floor slab 14, a ceiling slab 12 fixed to an upper end, and a floor slab 14 fixed to a lower end. And a plurality of wooden wall plates 16. The ceiling slab 12, floor slab 14, and wall slab 16 of the woodblock unit 10 are assembled in advance as a unit, and form a living space.

  In this embodiment, a plurality of woodblock units 10 of the same shape are joined in the up-down direction and the left-right direction to form one building having a multi-story living space. The wood block unit 10 of the present embodiment includes two wall blocks 16 fixed to both ends of the ceiling block 12 and the floor block 14 in the longitudinal direction. For example, four wall blocks surrounding four sides of the living space are provided. A version may be provided.

  The ceiling slab 12 and the floor slab 14 each include a plurality (three in this embodiment) of woody upper reinforcing members 18 and a plurality of (two in this embodiment) woody lower reinforcing members 20. A reinforcing member 22 is provided.

  The upper reinforcing members 18 are provided on the upper surface of the ceiling slab 12, extend in the longitudinal direction of the ceiling slab 12, and are arranged at intervals from each other in a direction perpendicular to the longitudinal direction. On the other hand, the lower reinforcing member 20 is provided on the lower surface of the floor slab 14, extends in the longitudinal direction of the floor slab 14, and is disposed so as to be located between the upper reinforcing members 18.

  The upper reinforcing member 18 and the lower reinforcing member 20 are, for example, rectangular beam members having the same shape. As shown in FIG. 4, for example, the upper reinforcing member 18 and the lower reinforcing member 20 are respectively joined to the ceiling plate 12 and the floor plate 14 by a resorcinol-based adhesive 24. ing.

  The upper and lower woodcut units 10 are joined and integrated with each other while the floor slab 14 of the upper woodcut unit 10 is placed on the upper surface of the ceiling plate 12 of the lower woodcut unit 10. Specifically, the upper reinforcing member 18 of the lower woodblock unit 10 is joined to the floor slab 14 of the upper woodblock unit 10 by a screw 25, and the lower reinforcing member 20 of the upper woodblock unit 10 is attached to the lower woodblock unit 10 To the ceiling plate 12 with screws 25.

  In a state where the woodblock units 10 are vertically stacked, the upper reinforcing member 18 of the lower woodblock unit 10 and the lower reinforcing member 20 of the upper woodblock unit 10 are alternately placed between the ceiling board 12 and the floorboard 14 (by nesting). ) Is located. A gap 26 is formed between the upper reinforcing member 18 and the lower reinforcing member 20.

  As shown in FIGS. 2 and 4, in this embodiment, the ceiling slab 12, the floor slab 14, and the wall slab 16 of the woodcut unit 10 are laminated with a plurality of lamina materials 28 such that the fiber directions of the wood fibers are orthogonal to each other. It is composed of bonded cross glued laminated wood (CLT, Cross Laminated Timer). Similarly, the upper reinforcing member 18 and the lower reinforcing member 20 are also made of orthogonal laminated wood.

  On the upper surface of the floor slab 14, an upper refractory layer 30 is provided. The upper fire-resistant layer 30 is formed by, for example, a concrete layer 32 laminated on the upper surface of the floor slab 14 and a fire-resistant plaster (SL plaster) containing gypsum as a main component, and laminated on the upper surface of the concrete layer 32. And a plaster layer 34.

  On the other hand, a lower fireproof layer 36 is provided on the lower surface of the ceiling slab 12. The lower refractory layer 36 is composed of, for example, a plurality of (four in this embodiment) gypsum boards joined to the lower surface of the ceiling slab 12.

  Further, as shown in FIG. 2, on the inner surface of the wall slab 16, there is provided a horizontal fire-resistant layer 42 composed of an unburned layer 38 and an allowance layer 40. The unburned layer 38 includes a plurality of fire-resistant plasters 44 (SL plasters) that extend in the vertical direction and are spaced apart from each other, and a wood-based connecting member 46 provided between the plurality of plasters 44. It is composed of

  On the other hand, the burning allowance layer 40 is made of a wooden plate covering the plaster 44 and the connecting member 46, and is joined to the connecting member 46. In addition, bar-shaped plasters 44A extending in the horizontal direction are provided at the upper and lower ends of the burn-off layer 38 of the horizontal fire-resistant layer 42. Each of the layers 36 is in contact with the gypsum board.

  In addition, the upper woodcut unit 10 and the lower woodcut unit 10 are joined to each other by a pull bolt 48 provided so as to straddle the wall print 16 of the upper woodcut unit 10 and the wall print 16 of the lower woodcut unit 10. ing.

  Specifically, recesses 50 are respectively formed on the inner surface of the wall slab 16, and the floor slab 14 of the upper woodblock unit 10 and the reinforcing member 22 (in the present embodiment, the lower slabs 22, which extend in the vertical direction and extend between the recesses 50) An insertion hole 52 that penetrates the reinforcing member 20) and the ceiling plate 12 of the lower wood block unit 10 is formed.

  As shown partially enlarged in FIG. 3, the pull bolt 48 is inserted into the insertion hole 52, and both ends of the pull bolt 48 sandwich the washer 54 in the concave portion 50 formed in the wall slab 16. And is fixed to the wall surface of the concave portion 50 by a nut 56. After fixing the pull bolt 48 with the nut 56, the recess 50 is closed with a filler (not shown).

  A support plate (not shown) for transmitting a vertical force is provided around the insertion hole 52 at the joint between the wall slab 16 and the floor slab 14 of the wood block unit 10. Further, the joint between the wall slab 16 and the floor slab 14 of the wood block unit 10 and the joint between the wall slab 16 and the ceiling slab 12 are provided with an L-shaped or U-shaped plate (not shown) for transmitting shearing force. A shear force transmitting member is provided.

  In the left and right wood block units 10, the ceiling blocks 12 and the floor blocks 14 are joined to each other by spline joining or the like. Here, since the longitudinal ends of the ceiling slab 12 and the floor slab 14 of the wood block unit 10 protrude outward from the wall slab 16, the wall slabs 16 are brought into contact with the ceiling slab 12 and the floor slab 14. A gap 58 is formed therebetween.

(Action, effect)
According to the present embodiment, the wood block unit 10 is configured by the woody ceiling block 12, the floor block 14, the wall block 16, and the reinforcing member 22. For this reason, a building having a plurality of layers of living space can be constructed by stacking a plurality of wood block units 10, and the workability of the building can be improved.

  Further, according to the present embodiment, the floor slab 14 of the upper wood stencil unit 10 is placed on the upper surface of the ceiling slab 12 of the lower wood stencil unit 10, and extends in the longitudinal direction of the ceiling slab 12 and the floor slab 14. A plurality of reinforcing members 22 are provided between the ceiling slab 12 and the floor slab 14. That is, the ceiling slab 12 and the floor slab 14 are reinforced by the reinforcing member 22.

  For this reason, compared with the case where the reinforcing member 22 is not provided (the case where the ceiling slab 12 and the floor slab 14 are simply overlapped), the thickness of the ceiling slab 12 or the floor slab 14 is increased, and The ceiling slab 12 and the floor slab 14 can have a long span without supporting the slab 12 or the slab 14.

  In addition, since the plurality of reinforcing members 22 are arranged at an interval in a direction orthogonal to the longitudinal direction of the ceiling slab 12 and the floor slab 14, the gap 26 formed between the ceiling slab 12 and the floor slab 14 is provided. Can be used as an installation space for equipment piping and the like. In this case, for example, an inspection port (not shown) or the like is formed in the floor slab 14, so that inspection of the equipment piping and the like can be easily performed.

  Similarly, the gap 58 formed between the wall plates 16 of the left and right wood block units 10 can be used as an installation space for equipment piping (vertical shaft) and the like. Further, since the gaps 26 and 58 are formed between the floor slab 14 and the ceiling slab 12 and between the wall slabs 16, it is possible to enhance the soundproofing performance of the building constituted by the wood block unit 10.

  Further, according to the present embodiment, the plurality of upper reinforcing members 18 are provided on the upper surface of the ceiling plate 12 of the woodblock unit 10, and the plurality of lower reinforcing members 20 disposed so as to be located between the upper reinforcing members 18. It is provided on the lower surface of the floor slab 14 of the wood block unit 10.

  For this reason, when the wood block units 10 are stacked to form a multi-layer living space, the upper reinforcing members 18 of the ceiling slab 12 and the lower reinforcing members 20 of the floor slab 14 are alternately arranged (nested). Thereby, compared with the case where the reinforcing member 22 is provided only on one of the upper surface of the ceiling slab 12 and the lower surface of the floor slab 14, the ceiling slab 12 and the floor slab 14 can be made to have a long span without increasing the plate thickness. Can be.

  Further, according to the present embodiment, the lower fireproof layer 36 is provided on the lower surface of the ceiling slab 12, and the upper fireproof layer 30 is provided on the upper surface of the floor slab 14. For this reason, when the woodblock units 10 are stacked to form a multi-layer living space, the lower fireproof layer 36 provided on the lower surface of the ceiling slab 12 and the upper fireproof layer 30 provided on the upper surface of the floor slab 14 The ceiling slab 12 and the floor slab 14 can have a fire-resistant structure, and there is no need to provide a fire-resistant layer on both sides of the ceiling slab 12 and the floor slab 14.

  Similarly, since the horizontal fireproof layer 42 is provided on the inner surface of the wall slab 16, when the woodcut units 10 are joined to each other and the wall slabs 16 face each other, the horizontal fireproof layer provided on the inner surface of the wall slab 16 is provided. The layer 42 allows the wall slab 16 to have a fire resistant structure. For this reason, it is not necessary to provide a fireproof layer on both sides of the wall slab 16.

  In the present embodiment, since the refractory plaster 44 is in contact with the upper refractory layer 30 and the lower refractory layer 36, the lateral refractory layer 42, the upper refractory layer 30, and the lower refractory layer 36 The fire resistance can be ensured also at the joints of.

(Other embodiments)
As described above, the present invention has been described with respect to an example of the embodiment. However, the present invention is not limited to such an embodiment, and various other embodiments are possible within the scope of the present invention.

  For example, in the present embodiment, the reinforcing member 22 is configured by the upper reinforcing member 18 provided on the upper surface of the ceiling slab 12 and the lower reinforcing member 20 provided on the lower surface of the floor slab 14. However, the reinforcing member 22 may be provided on only one of the upper surface of the ceiling slab 12 and the lower surface of the floor slab 14.

  Further, in the present embodiment, the ceiling slab 12, the floor slab 14, the wall slab 16, and the reinforcing member 22 of the wooden block unit 10 are made of orthogonal laminated wood. However, the ceiling slab 12, the floor slab 14, the wall slab 16, and the reinforcing member 22 only need to be made of wood. For example, a laminated veneer (LVL (Laminated Venner Number)) in which the veneers are aligned in the fiber direction and laminated and bonded. ) Or a single-layer solid material.

  In the present embodiment, the ceiling plate 12 and the floor plate 14 of the upper and lower woodblock units 10 are joined by screws 25. However, the ceiling slab 12 and the floor slab 14 may not be directly joined by the screw 25, and may be joined by an adhesive or the like instead of the screw 25. Furthermore, the upper refractory layer 30, the lower refractory layer 36, and the lateral refractory layer 42 only need to have fire resistance, and are not limited to the configuration of the above embodiment.

Reference Signs List 10 wood block unit 12 ceiling block 14 floor block 16 wall block 18 upper reinforcing member 20 lower reinforcing member 22 reinforcing member 30 upper refractory layer 36 lower refractory layer

Claims (4)

With a wooden ceiling plate,
A wooden floor slab arranged on the upper surface of the ceiling slab,
A plurality of wooden reinforcing members provided between the ceiling slab and the floor slab, extending in the longitudinal direction of the ceiling slab and the floor slab, and spaced from each other in a direction orthogonal to the longitudinal direction. When,
The joint structure of the floor slab with the ceiling. A wooden slab, a wooden slab, and a wooden slab in which the ceiling slab is fixed to an upper end portion and a wooden slab in which the floor slab is fixed to a lower end portion. So,
Woody material provided on at least one of the upper surface of the ceiling slab and the lower surface of the floor slab, extending in the longitudinal direction of the ceiling slab and the floor slab, and being spaced apart from each other in a direction orthogonal to the longitudinal direction A woodcut unit having a plurality of reinforcing members.   The reinforcing member is provided on an upper surface of the ceiling slab, a plurality of upper reinforcing members arranged at intervals in a direction orthogonal to a longitudinal direction of the ceiling slab, and provided on a lower surface of the floor slab, The woodcutting unit according to claim 2, comprising: a plurality of lower reinforcing members disposed so as to be located between the upper reinforcing members.   The woodblock unit according to claim 2, wherein a lower fireproof layer is provided on a lower surface of the ceiling slab, and an upper fireproof layer is provided on an upper surface of the floor slab.