JP7085382B2 - Dry floor structure and its construction method - Google Patents

Description

The present invention relates to a dry floor structure and a construction method thereof.

For the floor of a building, there are a wet floor construction method in which mortar, concrete, etc. are filled to construct the floor, and a dry floor construction method in which the floor is constructed only from floor materials, joists, etc. without using these fillers. As a conventional dry floor construction method, a first floor frame made of a pair of floor beams and connecting materials that receive a floor load, and a brace material, and a triangular second floor frame having the brace material as a pair of slanted sides are used. A method of constructing a floor has been proposed in which the girders are alternately arranged and mounted in the girder direction, and the girders and the positioning pins on the girder side are installed so as to be inserted into the positioning holes of the floor frame and bolted (for example, patented). See Document 1).

Japanese Unexamined Patent Publication No. 5-295828

However, in the method of constructing a floor described in Patent Document 1, since two types of floor frames having completely different configurations are alternately arranged to construct a dry floor, it takes time and effort to manufacture the floor frame and the floor structure. However, it may be complicated and time-consuming to construct.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a dry floor structure having excellent workability and a construction method thereof.

In order to achieve the above object, one aspect of the drywall structure according to the present invention is
It is a dry floor structure having a pre-tension dry floor panel arranged with a gap between the left and right sides of the floor beam and a closed dry floor panel arranged in the gap on the floor beam. hand,
The upholstered dry floor panel has a deck plate, a hard insulation material on the deck plate, and a floor surface material on the hard insulation material.
The closed-dry floor panel has a deck plate, a hard insulation material on the deck plate, and a floor surface material on the hard insulation material.
A plurality of suspension jig holes are formed on the wide surface of the floor surface material of the closed-dry floor panel, and a soft heat insulating material is arranged at least at a lower position corresponding to the suspension jig holes. It is characterized by being done.

According to this aspect, regarding the dry floor structure in which the dry floor panel is arranged by closing between the left and right pre-attached dry floor panels installed in advance with a mutual gap with respect to the floor beam, the post-construction is performed. The closed-dry floor panel to be closed has a hole for a hanging jig on the wide surface (upper surface) of the floor material, and a soft heat insulating material is arranged at a position corresponding to the hole for the hanging jig below the floor material. Therefore, when the hanging jig is removed after the construction, it is possible to eliminate the need for the treatment for the hole for the hanging jig. For example, in a construction method in which a heavy machine such as a crane is used to suspend a drywall panel and suspend it in a gap between the left and right pre-tensioned drywall panels, suspension jigs are engaged on, for example, the left and right sides of the closed drywall panel. A measure of providing an engaging portion to be fitted is conceivable. In this way, in the treatment to the side surface of the closed dry floor panel, it is necessary to hang it with a heavy machine, close it so as not to interfere with the left and right pre-installed dry floor panels installed in advance, and hang the dry floor panel. Engagement parts that require later post-construction may be required.

On the other hand, in the dry floor structure of this embodiment, the suspension jig hole is provided on the wide surface (upper surface) of the floor surface material located above the closed dry floor panel, and the suspension jig hole is provided. Since the heat insulating material disposed below the corresponding floor surface material is a soft heat insulating material, the soft heat insulating material is appropriately deformed and the floor surface is deformed when the hanging jig is inserted into the hole for the hanging jig. Does not interfere with the engagement of the hanging jig with the material. However, the hard heat insulating material is disposed over almost the entire area below the floor surface material in the closed-dry floor panel, and the soft heat insulating material is disposed only at the position corresponding to the hole for the hanging jig, for example. To exemplify a case where a hanging jig hole is provided in the vicinity of each of the four corners of the floor material in a rectangular closed-type floor panel in a plan view, the surrounding area including the four hanging jig holes is illustrated. Soft insulation can be placed only in the area. In addition, four hanging jig holes are combined into one set on the left and right to form a total of two sets of hanging jig holes, and a total of two strip-shaped soft heat insulating materials spanning the two hanging jig holes of each set. Can be arranged. In the former form, among the rectangular block-shaped hard heat insulating materials having substantially the same shape and area as the floor surface material, four holes for hanging jigs (for example, round holes) provided in the floor surface material are provided. A form in which a soft heat insulating material is arranged at a corresponding position can be mentioned. On the other hand, as the latter form, for example, by adhering two elongated rectangular block-shaped (strip-shaped) soft heat insulating materials and a plurality of rectangular block-shaped hard heat insulating materials, it is abbreviated as a floor surface material as a whole. Examples thereof include a form in which heat insulating materials having the same shape and substantially the same area are arranged.

Pre-attached drywall panels have hard insulation over the entire area below the flooring material, and closed drywall panels have hard insulation over almost the entire area of the flooring material, thus making the dryfloor structure rigid. Can be enhanced. In addition, the closed-dry floor panel has a heat insulating material over the entire area by disposing a soft heat insulating material below the hole for the hanging jig provided in the floor surface material, and therefore has a heat insulating performance. A closed dryfloor panel with no low spots is formed.

The holes for hanging jigs provided on the surface of the floor surface material do not require any post-construction after the installation of the closed dry floor panel, but for example, a cap for closing may be attached.

Further, in another aspect of the dry floor structure according to the present invention, the deck plate has a female key at one end and a male key at the other end, and the deck plates are adjacent to each other. The female key is engaged with the male key to connect the deck plates to each other.
One of the upholstered drywall panels on the left and right of the floor beam has a hat-shaped plate at the end facing the gap.
At both ends of the deck plate of the closed-dry floor panel, the male key is arranged at the end corresponding to the hat-shaped plate of either the left or right of the pre-tensioned dry floor panel, and the male key is arranged on either the left or right side. It is characterized in that the female key is arranged at the end corresponding to the male key of the pre-tension dry floor panel.

According to this aspect, the end portion of the deck plate of the closed dry floor panel arranged in the gap is provided with respect to each deck plate of the pre-tensioned dry floor panel arranged on the left and right with a gap. It is possible to install the deck plates while engaging them with each other without interfering with each other in a difficult state. Here, the hat-shaped plate is, for example, a plate made of the same material as the deck plate, which has a flat Ω shape at both ends and does not have a male key or a female key like a deck plate. In the deck plate, it is possible to fit and engage the female key with the male key from above, but it is difficult to fit and engage the male key with the female key from above. In addition, as a result of the male key interfering with the female key, it becomes impossible to align the upper ends of the two deck plates at the same level. According to this aspect, for example, a male key at the end of the deck plate of the closed dryfloor panel to be installed is dropped from above with respect to the flat key at the end of the hat-shaped plate of the pre-attached drywall panel. By doing so, it becomes possible to install the closed dry floor panel so that the leading dry floor panel and the closed dry floor panel are at the same level without interfering with each other.

Further, in another aspect of the dry floor structure according to the present invention, in the pre-covered dry floor panel, the deck plate projects laterally from the hard heat insulating material and the floor surface material.
In the closed-dry floor panel, the hard heat insulating material and the floor surface material project laterally from the deck plate.
It is characterized in that the hard heat insulating material and the end portion of the floor surface material of the closed dry floor panel are placed on the deck plate of the pre-loaded dry floor panel.

According to this aspect, the closed drywall panels suspended and hung by a heavy machine are placed in the gaps between the drywall panels arranged on the left and right sides of the floor beam with the drywall floors. It can be installed without interfering with the components of the panel.

Further, another aspect of the dry floor structure according to the present invention is characterized in that the hard heat insulating material is made of a resin-based foam heat insulating material, and the soft heat insulating material is made of a fiber-based heat insulating material made of glass wool or rock wool.

According to this aspect, by forming a hard heat insulating material and a soft heat insulating material by a resin-based foam heat insulating material and a fiber-based heat insulating material, a soft heat insulating material having excellent heat insulating properties and deformability and rigidity are imparted to the panel. It is possible to form a hard insulating material that can be formed. As the resin-based foam heat insulating material, a foam material such as phenol resin or urethane resin can be applied.

Further, one aspect of the construction method of the dry floor structure according to the present invention is.
The process of installing a dry-walled floor panel, which installs a dry-walled floor panel with a gap between the left and right sides of the floor beam,
It has a closing dry floor panel installation step of closing the gap on the floor beam and installing the closing dry floor panel to close the gap.
The upholstered dry floor panel has a deck plate, a hard insulation material on the deck plate, and a floor surface material on the hard insulation material.
The closed-dry floor panel has a deck plate, a hard heat insulating material on the deck plate, and a floor surface material on the hard heat insulating material.
A plurality of holes for hanging jigs are formed on the wide surface of the floor surface material of the closing dry type floor panel, and a soft heat insulating material is arranged at least at a lower position corresponding to the holes for the hanging jigs. ,
In the closing dry floor panel installation step, the hanging jig is locked in the hole for the hanging jig, and the closing dry floor panel is suspended and installed by a heavy machine via a wire connected to the hanging jig, and the hanging is suspended. It is characterized in that a dry floor structure is constructed by removing the hanging jig from the jig hole.

According to this aspect, the closed dry floor panel suspended by a heavy machine is installed in the gap between the pre-tensioned dry floor panels arranged in front of the left and right of the floor beam. A plurality of small-area suspension jig holes are opened on the wide surface (upper surface) of the closed-dry floor panel, and the suspension jig is inserted through the holes so that the suspension jig and the like can be first suspended when hanging. Does not interfere with the tension-dry floor panel. Further, it is possible to eliminate the need for post-construction of a hole for a hanging jig after hanging. Therefore, it is a construction method having good workability.

Further, one aspect of the closed dry floor panel forming the dry floor structure according to the present invention is.
A dry floor structure having a pre-tension dry floor panel arranged with a gap between the left and right sides of the floor beam and a closed dry floor panel arranged in the gap on the floor beam. It is a closed-dry floor panel that forms
The closed-dry floor panel has a deck plate, a hard insulation material on the deck plate, and a floor surface material on the hard insulation material.
A plurality of holes for hanging jigs are formed on the wide surface of the floor surface material of the closing dry type floor panel, and a soft heat insulating material is arranged at least at a lower position corresponding to the holes for the hanging jigs. It is characterized by being.

According to this aspect, the closed-dry floor panel to be constructed later has a hole for a hanging jig on the wide surface (upper surface) of the floor material, and is located at a position corresponding to the hole for the hanging jig below the floor material. By disposing the soft heat insulating material, it is possible to eliminate the need for treatment for the hole for the hanging jig when the hanging jig is removed after the construction. Further, when the hanging jig is inserted into the hole for the hanging jig, the soft heat insulating material is appropriately deformed, so that the insertion of the hanging jig into the hole for the hanging jig and the engagement with the floor material are heat-insulated. There is no risk of being hindered by the material.

Further, one aspect of the pre-tensioned drywall panel forming the drywall structure according to the present invention is.
A dry floor structure having a pre-tension dry floor panel arranged with a gap between the left and right sides of the floor beam and a closed dry floor panel arranged in the gap on the floor beam. It is a dry-walled floor panel with a lining to be formed.
The deck plate, the hard heat insulating material on the deck plate, the floor surface material on the hard heat insulating material, a plurality of crosspiece members extending in the corrugated ridge line direction of the deck plate, and the crosspiece members It is characterized by having a horizontal brace that connects the two.

According to this aspect, by being reinforced by a plurality of crosspiece members and horizontal braces connecting the crosspiece members, a toe-lined dry floor panel having particularly high horizontal rigidity is formed. Further, by having the lining dry floor panel having high horizontal rigidity, a dry floor structure having high horizontal rigidity is formed as well.

As can be understood from the above description, according to the dry floor structure and its construction method of the present invention, it is possible to provide a dry floor structure having excellent workability and its construction method.

It is a figure which shows the lower structure of the lining dry type floor panel which concerns on embodiment, (a) is a plan view, (b) is the b direction arrow view of FIG. 1 (a). It is a figure which shows the lower middle structure of the pre-tension dry floor panel, (a) is a plan view, (b) is the b direction arrow view of FIG. 2 (a). (A) is a perspective view explaining a state in which a female key of the deck plate is engaged with a male key of the deck plate, and (b) is a perspective view of a hat-shaped plate. It is a figure which shows the upper middle structure of the pre-tension dry floor panel, (a) is a plan view, (b) is the b direction arrow view of FIG. 4 (a). It is a figure which shows the upper structure of the lining dry type floor panel and shows the laying dry floor panel, (a) is a plan view, (b) is the b direction arrow view of FIG. 5 (a). It is a figure which shows the lower structure and the middle structure of the closed dry floor panel which concerns on embodiment, (a) is a plan view, (b) is the b direction arrow view of FIG. 6 (a). It is a figure which shows the upper structure of the closed-dry floor panel and shows the closed-dry floor panel, (a) is a plan view, and (b) is the b-direction arrow view of FIG. 7 (a). It is a process drawing explaining the construction method of the drywall structure which concerns on embodiment. Following FIG. 8, it is a process diagram for explaining the construction method of the dry floor structure. Following FIG. 9, it is a process diagram for explaining the construction method of the dry floor structure, and is a diagram showing both the dry floor structure according to the embodiment.

Hereinafter, the drywall structure and its construction method according to the embodiment, the closed drywall panel forming the drywall structure, and the upholstered drywall panel will be described with reference to the attached drawings. In the present specification and the drawings, substantially the same components may be designated by the same reference numerals to omit duplicate explanations.

[Plaid dry floor panel, closed dry floor panel, dry floor structure and its construction method according to the embodiment]
<Tip dry floor panel>
First, with reference to FIGS. 1 to 5, a pre-attached dry floor panel according to an embodiment will be described. Here, FIG. 1 is a diagram showing a lower configuration of a prepayment drywall panel according to an embodiment, and FIG. 2 is a diagram showing a lower middle tier configuration of the prepayment drywall panel. Further, FIG. 3A is a perspective view illustrating a state in which the female key of the deck plate is engaged with the male key of the deck plate, and FIG. 3B is a perspective view of the hat-shaped plate. Further, FIG. 4 is a diagram showing an upper middle stage configuration of the pre-attached dry floor panel, and FIG. 5 is a diagram showing the upper configuration of the pre-attached dry floor panel and showing the pre-attached dry floor panel.

As shown in FIGS. 1 to 5, the lining drywall panel 10 in the illustrated example has a four-stage configuration. Hereinafter, the lower configuration, the lower middle configuration, the upper middle configuration, and the upper configuration will be described in this order. First, as shown in FIG. 1, four crosspiece members 1 are arranged side by side at intervals in the lower part of the front-mounted drywall panel 10. The crosspiece member 1 is formed of, for example, a square steel pipe, and connecting metal fittings 2 are connected to both ends of the crosspiece member 1 by welding or the like.

As shown in FIG. 1 (b), the connection fitting 2 has a mounting material 21, a closing material 22, and a suspended material 23. The mounting material 21 is welded to the lower surface of the crosspiece member 1 and projects laterally from the end portion of the crosspiece member 1. The blocking material 22 is erected from the mounting material 21 so as to close the end portion of the crosspiece member 1, and is connected to both the crosspiece member 1 and the mounting material 21 by welding or the like. The suspended material 23 is erected from the mounting material 21 in a manner orthogonal to the closing material 22, and is connected to both the mounting material 21 and the closing material 22 by welding or the like.

In two adjacent crosspiece members 1, two horizontal braces 3 are connected to each mounting material 21 by bolts, nuts, or the like in an intersecting manner, whereby a lower configuration is formed. The number of crosspiece members 1, the distance between the crosspiece members 1 and the like are appropriately set according to the size of the dry floor structure to be constructed, and are not limited to the form shown in the illustrated example.

As shown in FIG. 2, a plurality of deck plates 5 are placed on a lower structure having a crosspiece member 1 and a horizontal brace 3 in a posture in which the keys at the ends are engaged with each other, and further. A hat-shaped plate 6 made of the same material as the deck plate 5 is arranged at the right end. Since the plurality of deck plates 5 are engaged with each other and the hat-shaped plate 6 is arranged at the right end, the shape in the ridge line direction as shown in FIG. 2 (b) is a waveform, and FIG. 2 (a). ), The lower middle structure that almost covers the lower structure is formed. The deck plate 5 and the hat-shaped plate 6 are fixed in appropriate places to the crosspiece member 1 by screws or the like.

Here, an engagement mode of the two deck plates 5 will be described with reference to FIG. 3 (a). As shown in FIG. 3A, the deck plate 5 has flat portions on the left and right sides orthogonal to the longitudinal direction, tapered side surfaces that taper up from these flat portions, and a flat ceiling surface. In the figure, a female key 5a is provided at the side end of the flat portion on the right side, and a male key 5b is provided at the side end of the flat portion on the left side in the figure. As shown in FIG. 3A, when the female key 5a of the other deck plate 5 is lowered in the X1 direction from above with respect to the male key 5b of one deck plate 5, the male key 5b is female. The keys 5a fit well and engage with each other. On the other hand, although not shown, on the contrary, when the male key 5b of the other deck plate 5 is lowered from above with respect to the female key 5a of one deck plate 5, the male key 5b is attached to the female key 5a. Cannot be engaged with each other because they do not fit into each other. Not only can they not be engaged, but they also interfere with each other, making it impossible to dispose of the two deck plates 5 with the upper ends at the same level. Therefore, when the two deck plates 5 are engaged with each other by the keys at the ends, the female key 5a and the male key 5a are engaged on the premise that the female key 5a is lowered from above with respect to the male key 5b. There is a default left-right relationship with the key 5b. That is, as shown in the illustrated example, the female key 5a descending from above engages with the male key 5b located on the right side and is located on the left side.

As described above, when the female key 5a and the male key 5b are engaged with each other, there is a predetermined left-right relationship between the female key 5a and the male key 5b. Therefore, in the present embodiment, the hat shown in FIG. 3 (b). By arranging the shape plates 6 side by side on one side end of the deck plate 5, it was decided to realize good assembly of the upholstered dry floor panel 10 and the closed dry floor panel 20, which will be described later.

As shown in FIG. 3B, the hat-shaped plate 6 is a hat-shaped plate having flat keys 6a on the left and right sides. Unlike the female key 5a and the male key 5b of the deck plate 5, the flat key 6a is literally flat, so it is the case that either the female key 5a or the male key 5b is placed on the flat key 6a. However, although they do not engage with each other, the upper end levels of both the deck plate 5 and the hat-shaped plate 6 can be arranged at the same level. Even if the ends are not necessarily engaged with each other, in a well-arranged state, for example, by fastening the overlapping portion of the flat key 6a and the male key 5b to the lower crosspiece member 1 with screws or the like. Both can be connected.

Returning to FIG. 2, in the lower middle stage configuration for forming the pre-tension dry floor panel 10, a plurality of deck plates 5 are fitted to one male key 5b with the other female key 5a from above. By being engaged and further disposing a hat-shaped plate 6 on the side of the deck plate 5 at the right end, a lower middle stage configuration is formed.

Next, as shown in FIG. 4, by laying a plurality of hard heat insulating materials 7 on the plurality of deck plates 5 and the hat-shaped plate 6, the upper middle stage configuration of the upholstered dry floor panel 10 is formed. It is formed. In the illustrated example, three wide-area hard heat insulating materials 7 and a narrow-width hard heat insulating material 7 for adjusting the remaining width of the end are arranged, but the number of the hard heat insulating materials 7 is appropriate. Set.

The hard heat insulating material 7 is a relatively rigid and hard heat insulating material. As the hard heat insulating material 7, a resin-based foam heat insulating material such as phenol foam, rigid urethane foam, and polystyrene foam is applied. This "foam material" includes an open cell structure typified by urethane foam and a closed cell structure typified by polyethylene foam.

Then, as shown in FIG. 5, by laying the floor surface material 8 formed of a plurality of plywood or the like on the hard heat insulating material 7, the upper structure of the pre-prepared dry floor panel 10 is formed, and at the same time, the upper structure is formed. A four-tiered drywall panel 10 is formed. For example, the floor surface material 8 and the hard heat insulating material 7 can be attached to the lower crosspiece member 1 with a screw or the like so as to penetrate the floor surface material 8 and the hard heat insulating material 7 at an appropriate position of the floor surface material 8. can.

Further, as shown in FIG. 5, in the tipped dry floor panel 10, the deck plate 5 and the hat-shaped plate 6 project laterally from the hard heat insulating material 7 and the floor surface material 8.

The illustrated dry floor panel 10 may be carried on-site from a precast panel manufactured in advance at the factory and quickly installed on the floor beam at the site. For example, other than the floor surface material 8 may be transported to the factory. The assembled material may be transported to the site, the floor surface material 8 may be fastened with screws or the like at the site, and then installed on the floor beam.

<Closed dry floor panel>
Next, the closed-dry floor panel according to the embodiment will be described with reference to FIGS. 6 and 7. Here, FIG. 6 is a diagram showing a lower configuration and a middle configuration of the closed-dry floor panel according to the embodiment, and FIG. 7 is a diagram showing the upper configuration of the closed-dry floor panel and showing the closed-dry floor panel. ..

As shown in FIG. 6, in the lower configuration of the closed dry floor panel 20, a plurality of deck plates 5 are engaged with each other, and a plurality of hard heat insulating materials 7 are laid and the hard heat insulating material 7 is laid. Two narrow and strip-shaped soft heat insulating materials 9 are laid between the two. The two soft heat insulating materials 9 are arranged at positions corresponding to the suspension jig holes 8a provided in the floor surface material 8 shown in FIG. 7.

Returning to FIG. 6, a fiber-based heat insulating material such as rock wool or glass wool is applied to the soft heat insulating material 9. The fiber-based heat insulating material has lower rigidity than the resin-based foam heat insulating material and is excellent in deformation performance.

As shown in FIG. 7, a plurality of floor surface materials 8 are laid on the hard heat insulating material 7 and the soft heat insulating material 9 shown in FIG. 6, and the floor surface material 8 and the hard heat insulating material 8 are placed in appropriate places of the floor surface material 8. By screwing to the deck plate 5 so as to penetrate the 7 to form a closed-dry floor panel 20.

As shown in FIG. 7, in the closed-dry floor panel 20, two sets of hanging jig holes 8a arranged in the lateral direction of the rectangular closed-dry floor panel 20 in a plan view are provided on both ends in the longitudinal direction. There are two sets in total. A band-shaped soft heat insulating material 9 is arranged below the floor surface material 8 in a range extending over the suspension jig holes 8a of each set. As will be described in detail in the method of constructing the dry floor structure described below, when the suspension jig is inserted into the suspension jig hole 8a, the hard heat insulating material 7 is temporarily arranged below the suspension jig hole 8a. If so, the hard heat insulating material 7 is too hard to allow the hanging jig to be smoothly inserted and locked to the floor surface material 8. Therefore, a soft heat insulating material 9 is arranged at a lower position corresponding to the suspension jig hole 8a.

The soft heat insulating material 9 in the illustrated example has a strip-shaped shape extending over the two side-by-side hanging jig holes 8a, but a soft heat insulating material in a form other than the illustrated example may be applied. For example, the soft heat insulating material may be arranged only directly under the suspension jig hole 8a. In this embodiment, for example, a round hole is opened at a position corresponding to the suspension jig hole 8a in the hard heat insulating material 7, and the soft heat insulating material is filled in the round hole.

As shown in FIG. 7, in the closed-dry floor panel 20, the hard heat insulating material 7 (and the soft heat insulating material 9) and the floor surface material 8 project laterally from the deck plate 5.

<Dry floor structure and its construction method>
Next, the drywall structure and the construction method thereof according to the embodiment will be described with reference to FIGS. 8 to 10. Here, FIGS. 8 to 10 are process diagrams for explaining the construction method of the dry floor structure according to the embodiment in order, and FIG. 10 is a diagram further showing the dry floor structure according to the embodiment. Note that FIG. 9 shows a cross-sectional view cut at a portion where the soft heat insulating material 9 is arranged.

First, as shown in FIG. 8, a floor beam 30 made of a shaped steel material such as H-shaped steel is laid on a solid foundation K made of concrete and precast, and fixed to the foundation K. The form of the foundation K may be a solid foundation, a cloth foundation, or the like, or a foundation cast on site instead of being made of precast. For example, in the case of a building whose outer shape is rectangular in a plan view, a floor beam is actually formed by laying a girder in the direction along the outer shape and arranging a small beam between the opposite girders. In FIGS. 8 to 10, these are collectively referred to as a floor beam 30, and a part thereof will be taken out to explain the construction method.

In the construction method according to the embodiment, first, as shown in FIG. 8, a pre-attached dry floor panel 10 is provided on the left and right sides of the floor beams 30 laid at intervals so as to have a gap G directly above the floor beams 30. Install. FIG. 8 shows a state in which the dry-walled floor panels 10 are already installed on the sides of the left and right floor beams 30, and the dry-walled floor panels 10 are installed between the left and right floor beams 30, for example. The drywall panel 10 may be installed in order from either the left or right end of the building.

In the H-shaped steel forming the floor beam 30, a steel mounting plate 31 extending in the horizontal direction is connected to the web by welding at a position in the middle of the web, and the mounting plate 31 is connected to the web. The top and bottom are reinforced with steel reinforcing ribs 33, 32 welded to the web and the top and bottom flanges. The hanging jig J is engaged with the jig hole 23a provided in the suspended material 23 of the upholstered dry floor panel 10, and the wire W is connected to the hanging jig J. For example, in the tipped dry floor panel 10 shown in FIG. 5, the hanging jig J is engaged with the four hanging members 23 on the left, right, top and bottom, and the wire W connected to each hanging jig J is shown in the figure. It is put together in the embodiment shown in No. 8, suspended by a heavy machine such as a crane (not shown), and suspended in the X2 direction with respect to the floor beam 30. At this time, the mounting material 21 of the pre-tensioned dry floor panel 10 is placed on the mounting plate 31 projecting laterally from the floor beam 30. Then, in a state where the mounting material 21 is placed on the mounting plate 31, both bolt holes 21a and 31a communicate with each other. By inserting bolts into the communicated bolt holes 21a and 31a and tightening the nuts, both are connected by the bolts and nuts 34. The above is the process of installing the drywall floor panel.

Next, as shown in FIG. 9, the hanging jig J is inserted into the four hanging jig holes 8a (see FIG. 7) provided in the floor surface material 8 of the closed dry floor panel 20 to engage with the floor material 8. The wires W connected to each hanging jig J are combined into one, and the wires W are hung in the gap G between the adjacent dry floor panels 10 by a heavy machine such as a crane (not shown). Note that FIG. 9 shows a state in which two closed-dry floor panels 20 are suspended in the X2 direction at the same time in two gaps G, but the closed-dry floor panels 20 are sequentially suspended in each gap G. Of course, it may be a method of going.

As shown in FIG. 9, since the heat insulating material below the hanging jig hole 8a provided in the floor surface material 8 is the soft heat insulating material 9, the hanging jig J is provided in the hanging jig hole 8a. Upon insertion, the soft heat insulating material 9 is appropriately deformed in the δ direction and does not hinder the insertion of the hanging jig J and the engagement with the floor surface material 8.

Further, as is clear from FIG. 9, in the tipped dry floor panel 10, the deck plate 5 and the hat-shaped plate 6 project to the side gap G side from the hard heat insulating material 7 and the floor surface material 8. In the closed-dry floor panel 20, the hard heat insulating material 7 (and the soft heat insulating material 9) and the floor surface material 8 project from the deck plate 5 to the side gap G side. Therefore, when the closed dry floor panel 20 is hung in the gap G, the hard heat insulating material 7 (and the closed dry floor panel 20) of the closed dry floor panel 20 is placed on the upper ends of the hat-shaped plate 6 and the deck plate 5 of the left and right pre-loaded dry floor panels 10. The soft heat insulating material 9) can be placed smoothly.

Further, as described in FIG. 3, the key at the right end of the deck plate 5 at the right end of the closed-dry floor panel 20 is the female key 5a, and the key at the left end of the left deck plate 5 is the male key 5b. Is. On the other hand, since the key at the left end of the deck plate 5 at the left end of the fronted dry floor panel 10 on the right side of the gap G is the male key 5b, the closed dry floor panel 20 is hung in the X2 direction. At that time, the female key 5a descends in the X3 direction from above with respect to the male key 5b located below, smoothly fits into the male key 5b, and is engaged with each other. At the same time, when the closed-dry floor panel 20 is suspended in the X2 direction, the male key 5b descends in the X4 direction from above with respect to the flat key 6a located below, and the flat key does not interfere with each other. It is placed on top of 6a. Therefore, when the drywall panels 20 are hung by closing in the gap G between the left and right pre-tensioned drywall panels 10, the flooring materials 8 possessed by them can be installed at the same level. The above is the closing and drying floor panel installation process.

After executing the pre-dry floor panel installation process for each floor beam 30 forming the floor of the building, the gap G between the pre-dry floor panels 10 formed in the pre-dry floor panel installation process On the other hand, the closing dry floor panel installation step is executed to install the closing dry floor panel 20.

By closing the gap G between the left and right lining dry floor panels 10 and installing the dry floor panel 20 in this way, as shown in FIG. 10, the lining dry floor panels on the left and right of the floor beam 30 are installed. A dry floor structure 100 having a closed dry floor panel 20 disposed between the left and right lining dry floor panels 10 is formed. As is clear from FIG. 10, by closing on the laterally overhanging portion of the drywall panel 10 and placing the laterally overhanging portion of the drywall panel 20, the left and right lining drywall type The floor surface materials 8 of the floor panel 10 and the closed dry floor panel 20 are aligned to the same level.

FIG. 10 shows a state in which a carpet such as a block carpet is laid as a flooring material 40 on the floor material 8 of the horizontally spreading dry floor panel 10 and the floor material 8 of the closed dry floor panel 20. There is. By laying the flooring material 40 on the floor surface material 8 in this way, the hanging jig hole 8a of the floor surface material 8 of the closed-dry floor panel 20 becomes invisible from the indoor side. Further, in the state where the dry floor structure 100 is completed as shown in the illustrated example, it is not always necessary to close the hole 8a for the hanging jig, but a resin cap or the like may be fitted to close the hole 8a.

According to the illustrated dry floor structure 100 and its construction method, holes 8a for hanging jigs applied when the closed dry floor panel 20 is installed are provided at a plurality of locations on the wide surface of the floor material 8. And, since the soft heat insulating material 9 is arranged at the lower position corresponding to the hole 8a for the hanging jig, the post-installation after the closing dry floor panel 20 is installed becomes unnecessary, and the workability is good. Underneath, it becomes possible to construct the drywall structure 100.

It should be noted that the configuration or the like described in the above embodiment may be another embodiment in which other components are combined, and the present invention is not limited to the configuration shown here. .. This point can be changed without departing from the spirit of the present invention, and can be appropriately determined according to the application form thereof.

1: Crosspiece member 2: Connection fitting, 21: Mounting material, 22: Closure material, 23: Suspended material, 3: Horizontal brace, 5: Deck plate, 5a: Female key, 5b: Male key, 6: Hat Shape plate, 6a: Flat key, 7: Hard heat insulating material (heat insulating material), 8: Floor surface material, 8a: Hole for hanging jig, 9: Soft heat insulating material (heat insulating material), 10: Pre-attached dry floor panel, 20: Closing dry floor panel, 30: Floor beam, 31: Placement plate, 32, 33: Reinforcing rib, 34: Bolts and nuts, 40: Carpet (flooring material), 100: Dry floor structure, G: Gap, J: Hanging jig, W: Wire

Claims (4)

It is a dry floor structure having a pre-tension dry floor panel arranged with a gap between the left and right sides of the floor beam and a closed dry floor panel arranged in the gap on the floor beam. hand,
The upholstered dry floor panel has a deck plate, a hard insulation material on the deck plate, and a floor surface material on the hard insulation material.
The closed-dry floor panel has a deck plate, a hard insulation material on the deck plate, and a floor surface material on the hard insulation material.
A plurality of suspension jig holes are formed on the wide surface of the floor surface material of the closed-dry floor panel, and a soft heat insulating material is arranged at least at a lower position corresponding to the suspension jig holes. Has been
The deck plate has a female key at one end and a male key at the other end, and the female key engages with the male key between adjacent deck plates. It is configured so that the plates are connected to each other.
One of the upholstered drywall panels on the left and right of the floor beam has a hat-shaped plate at the end facing the gap.
At both ends of the deck plate of the closed-dry floor panel, the male key is arranged at the end corresponding to the hat-shaped plate of either the left or right sided dry floor panel, and the male key is arranged on either the left or right side. A dry floor structure, characterized in that the female key is disposed at an end corresponding to the male key of the upholstered dry floor panel. In the upholstered dry floor panel, the deck plate projects laterally from the hard heat insulating material and the floor surface material.
In the closed-dry floor panel, the hard heat insulating material and the floor surface material project laterally from the deck plate.
The first aspect of the present invention is characterized in that the hard heat insulating material of the closed dry floor panel and the end portion of the floor surface material are placed on the deck plate of the pre-loaded dry floor panel. The dryfloor structure described. The dry floor structure according to claim 1 or 2 , wherein the hard heat insulating material is made of a resin-based foam heat insulating material, and the soft heat insulating material is made of a fiber-based heat insulating material made of glass wool or rock wool. The process of installing a dry-walled floor panel, which installs a dry-walled floor panel with a gap between the left and right sides of the floor beam,
It has a closing dry floor panel installation step of closing the gap on the floor beam and installing the closing dry floor panel to close the gap.
The upholstered dry floor panel has a deck plate, a hard insulation material on the deck plate, and a floor surface material on the hard insulation material.
The closed-dry floor panel has a deck plate, a hard insulation material on the deck plate, and a floor surface material on the hard insulation material.
A plurality of suspension jig holes are formed on the wide surface of the floor surface material of the closed-dry floor panel, and a soft heat insulating material is disposed at least at a lower position corresponding to the suspension jig holes. ,
In the closing dry floor panel installation step, the hanging jig is locked in the hole for the hanging jig, and the closing dry floor panel is suspended and installed by a heavy machine via a wire connected to the hanging jig, and the hanging is suspended. A dry floor structure is constructed by removing the hanging jig from the jig hole.
The deck plate has a female key at one end and a male key at the other end.
One of the upholstered drywall panels on the left and right of the floor beam has a hat-shaped plate at the end facing the gap.
At both ends of the deck plate of the closed-dry floor panel, the male key is arranged at the end corresponding to the hat-shaped plate of either the left or right of the pre-tensioned dry floor panel, and the male key is arranged on either the left or right side. The female key is arranged at the end corresponding to the male key of the pre-tension dry floor panel.
The method for constructing a dry floor structure, which comprises engaging the female key with the male key between adjacent deck plates to connect the deck plates to each other in the closing dry floor panel installation step .

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