JP2022174816A - Ceiling heat insulation structure and construction method thereof - Google Patents

Abstract

To provide a ceiling heat insulation structure allowing firm integration of heat insulation panels with a ceiling slab with an easier and safer construction method.SOLUTION: Multiple pieces of heat insulation panels 2 formed with grooves 2c on side faces thereof are arranged on a form 11 with the grooves 2c facing each other and with a heat insulation block 3 crossing from one groove 2c to the other groove 2c engaged thereto. Then, hardware 5 is arranged on the heat insulation panels 2, the hardware 5 is connected to the heat insulation block 3 with a machine screw 4, and a ceiling slab 1 is constructed by placing concrete on the heat insulation panels 2, and the hardware 5 is buried into the ceiling slab 1.SELECTED DRAWING: Figure 5

Description

The present invention relates to a ceiling insulation structure having an insulation panel on the lower surface of a ceiling slab, and more particularly, by placing the insulation panel on a formwork and pouring concrete, the ceiling slab is simultaneously constructed and the ceiling slab is installed. It relates to a ceiling heat insulation structure integrating a heat insulation panel and a heat insulation panel, and a construction method thereof.

As a construction method for a ceiling insulation structure in which insulation panels are arranged on the underside of a ceiling slab, concrete is placed on top of the insulation panels placed on the formwork, and the ceiling slab and the insulation panels are simultaneously constructed by placing the ceiling slab. Methods of integration are known. In Patent Document 1, a plurality of mounting pins that penetrate the heat insulating panel are attached in advance to the heat insulating panel, and by exposing the tips from the top surface of the heat insulating panel, the tips are gripped by hardened concrete, A construction method is disclosed for securing an insulation panel to a ceiling slab. In Patent Document 1, recesses and grooves are formed on the surface of the insulation panel on the ceiling slab side in order to prevent accidents such as tripping or stepping on the tip of the mounting pin protruding from the insulation panel. A configuration is disclosed in which the tip of the mounting pin is housed within the corresponding recess or groove.

JP 2007-56485 A

In the construction method disclosed in Patent Document 1, a configuration is disclosed in which recesses or grooves are formed on the surface of the heat insulating panel to prevent accidents due to the tip of the mounting pin. However, the work of forming recesses and grooves on the surface of a large number of heat insulating panels is complicated. In addition, it is not sufficient to simply embed the tip of the mounting pin into the ceiling slab, and the insulation panel may fall off after the formwork for constructing the ceiling slab is removed.

SUMMARY OF THE INVENTION An object of the present invention is to provide a ceiling insulation structure and a construction method thereof that can firmly integrate a heat insulation panel and a ceiling slab by a simpler and safer construction method.

A first aspect of the present invention is a ceiling insulation structure comprising a ceiling slab made of concrete and an insulation panel disposed on the lower surface side of the ceiling slab in contact with the ceiling slab,
Hardware is attached to the ceiling slab side of the heat insulation panel,
The hardware is buried in the ceiling slab.

A second aspect of the present invention is a method for constructing a ceiling insulation structure according to the present invention,
installing formwork;
placing an insulation panel on the formwork;
Placing hardware on the insulation panel and attaching it to the insulation panel;
constructing a ceiling slab by pouring concrete over the insulating panels;
removing the formwork;
characterized by having

In the present invention, after the insulation panel is placed on the formwork, metal fittings are attached to the surface of the insulation panel to strengthen the integration of the ceiling slab and the insulation panel. The safety of the insulation panel is high, and the entire construction process is simplified because there is no need to form recesses or grooves in the insulation panel. In addition, since the hardware is attached to the surface of the heat insulating panel, the shape can be freely selected, and the heat insulating panel can be firmly fixed to the ceiling slab. Therefore, according to the present invention, the ceiling slab and the heat insulating panel are more strongly integrated by a simple construction method, and a highly reliable ceiling heat insulating structure can be obtained.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows typically the structure of 1st Embodiment of the ceiling heat insulation structure of this invention. FIG. 2 is a partial plan view of FIG. 1; 3 is a schematic cross-sectional view corresponding to the A-A' portion of FIG. 2; FIG. 3 is a schematic cross-sectional view corresponding to the B-B' portion of FIG. 2; FIG. It is a cross-sectional schematic diagram which shows a part of construction process of the ceiling heat insulation structure of FIG. It is a schematic diagram which shows the cross-sectional shape of the hardware used by this invention. FIG. 2 is a perspective view schematically showing a configuration of an application example of the ceiling heat insulation structure of FIG. 1; 1 is a perspective view schematically showing a configuration in which a mounting direction of metal fittings is changed in the first embodiment of the ceiling heat insulation structure of the present invention; FIG. FIG. 9 is a partial plan view of FIG. 8; FIG. 10 is a schematic cross-sectional view corresponding to the C-C' portion of FIG. 9; FIG. 10 is a schematic cross-sectional view corresponding to the D-D' portion of FIG. 9; FIG. 9 is a perspective view schematically showing a configuration of an application example of the ceiling heat insulation structure of FIG. 8; FIG. 6 is a perspective view schematically showing the configuration of a second embodiment of the ceiling heat insulation structure of the present invention; FIG. 14 is a partial plan view of FIG. 13; FIG. 15 is a schematic cross-sectional view corresponding to the E-E' portion of FIG. 14; FIG. 15 is a schematic cross-sectional view corresponding to the FF' portion of FIG. 14; 14 is a cross-sectional view in the thickness direction showing a part of the construction process of the ceiling heat insulation structure of FIG. 13; FIG. FIG. 14 is a perspective view schematically showing a configuration of an application example of the ceiling heat insulation structure of FIG. 13; FIG. 14 is a perspective view schematically showing a configuration of an application example of the ceiling heat insulation structure of FIG. 13; FIG. 19 is a perspective view schematically showing a configuration obtained by combining the configuration of FIG. 7 and the configuration of FIG. 18;

The ceiling insulation structure of the present invention includes a ceiling slab and a heat insulation panel, and the ceiling slab and the heat insulation panel are firmly integrated by fixing hardware to the ceiling slab side of the heat insulation panel and embedding it in the ceiling slab. It is characterized by being transformed. The ceiling heat insulation structure of the present invention can be easily constructed by the following steps.
(1) A step of installing a formwork (2) A step of placing an insulation panel on the formwork (3) A step of placing and fixing metal fittings on the insulation panel (4) Pouring concrete on the insulation panel (5) Step of removing the formwork In the present invention, the ceiling slab is made by pouring concrete directly onto the heat insulating panel and hardening it. embedded, whereby the ceiling slab is strongly integrated with the insulation panel via metal fittings. In addition, since the metal fittings are installed after the heat insulation panel is placed on the formwork, the heat insulation panel is easy to handle when the heat insulation panel is placed on the formwork, and the worker does not trip over or step on the metalwork. There is no need to form recesses or grooves in the insulation panel to prevent accidental slippage.

As the hardware that is preferably used in the ceiling heat insulation structure of the present invention, a hardware that is long in the horizontal direction and has a substantially L-shaped cross section (transverse direction, width direction) or a substantially U-shaped metal structure that is open at the top is preferably used. , Commercially available angles and ridges are preferably used. In addition, the hardware preferably has a portion that bites into the ceiling slab in order to strengthen integration with the ceiling slab. The biting portion is a portion where the concrete wraps around to the lower side of a part of the hardware when placing the concrete, and after hardening, the concrete engages with each other, making it difficult for the hardware to come off the ceiling slab. Therefore, the shape of the biting portion is not particularly limited as long as the shape allows the concrete to wrap around to the lower side of a part of the hardware when the concrete is poured. A portion, or a portion whose upper end portion is folded downward.

FIG. 6 shows the cross-sectional shape (transverse direction, width direction) of a preferred hardware used in the present invention. In FIG. 6, (a) to (e) are examples of a substantially L shape, and (f) to (j) are examples of a substantially U shape. 6(b), (c), (g), and (h) show a shape in which the upper end is bent in the horizontal direction, and FIGS. 6(d), (e), (i), and (j). is a shape in which the upper end portion is folded downward. 6 (b) to (e) and (g) to (j), when concrete is placed on the heat insulation panel, the concrete is below the bent part of the upper end of the hardware. Alternatively, it enters the inside of the folded back, and after hardening, the ceiling slab and the metal fittings are strongly engaged, and the metal fittings are less likely to fall off from the ceiling slab. Preferably, as shown in FIGS. 6(b), (d), (g), and (i), the folded portion or the folded portion has a shape overlapping the L-shaped or U-shaped bottom surface. Preferably, the shape is folded back as shown in FIGS. 6(d) and (i), preferably the shape shown in FIG. 6(i).

Further, the biting portion may have a shape obtained by deforming the substantially L-shaped or substantially U-shaped side surface so that the cross section is substantially dogleg-shaped, zigzag-shaped, wave-shaped, or curved, Furthermore, these shapes may be combined with a shape in which the upper end portion is bent or folded back.

Next, the mounting form of the hardware of the ceiling heat insulation structure of the present invention will be described in detail. In the ceiling heat insulation structure of the present invention, the first embodiment and the second embodiment are mentioned as preferable mounting forms of metal fittings. In the first embodiment, a heat insulating block is fitted to the boundary between two adjacent heat insulating panels, and the hardware placed on the heat insulating panel and the heat insulating block are connected. A surface material is provided on the slab side, and metal fittings arranged on the surface material are connected to the surface material.

Hereinafter, each of the first and second embodiments and the construction method thereof will be described with reference to the drawings. It should be noted that, within the scope of the present invention, modifications, improvements, etc., to the following embodiments are made as appropriate based on the ordinary knowledge of those skilled in the art within the scope of the present invention without departing from the spirit of the present invention. included. In addition, in the drawings attached to this specification, only main constituent members according to the present invention are shown, and illustration of other constituent members is omitted for the sake of convenience.

[First Embodiment]
1 to 4 are diagrams schematically showing the configuration of the first embodiment of the ceiling heat insulation structure of the present invention, and FIG. 1 is a perspective view of this embodiment with the ceiling slab removed, FIG. 2 is a partial plan view of FIG. 1, and is a view of one of the metal fittings 5 in FIG. 1 viewed from above. 3 and 4 are cross-sectional views in the thickness direction (vertical direction) of this embodiment, FIG. 3 is a schematic cross-sectional view corresponding to the AA' portion in FIG. 2, and FIG. 2 is a schematic cross-sectional view corresponding to the BB' portion of FIG.

As shown in FIGS. 3 and 4, the ceiling insulation structure of the present invention comprises a concrete ceiling slab 1 and a heat insulation panel 2 arranged on the underside of the ceiling slab 1 in contact with the ceiling slab 1. In this embodiment, a plurality of heat insulating panels 2 are arranged in the horizontal direction.

The heat insulating panel 2 used in this embodiment has a groove 2c on at least one side surface, and the side surfaces having the groove 2c are arranged so as to contact each other at the boundary between two adjacent heat insulating panels 2, 2. At the same time, the heat insulating block 3 is fitted across the boundary from one groove portion 2c to the other groove portion 2c. The hardware 5 is arranged on the boundary between the two heat insulating panels 2 , 2 to which the heat insulating block 3 is fitted, and is connected to the heat insulating block 3 with screws 4 . Thereby, the hardware 5 and the heat insulation panel 2 are integrated through the heat insulation block 3, and the hardware 5 is buried in the ceiling slab 1. - 特許庁In this embodiment, as the hardware 5, the hardware having the shape shown in FIG. 6(j) is used.

Further, in this embodiment, a slag prevention tape 6 is arranged between the hardware 5 and the heat insulation panel 2, and the boundary between the two heat insulation panels 2, 2 is covered with the slag prevention tape 6. - 特許庁Further, at the lower end of the boundary between the two heat insulating panels 2, 2, the corners of the heat insulating panels 2, 2 are notched, and a joint material 7 is embedded in the gap to seal.

Next, the construction method of the ceiling heat insulation structure of this embodiment will be described. FIG. 5 is a schematic cross-sectional view showing one step of such construction, and is a schematic cross-sectional view of the same part as in FIG. 3 in the thickness direction. The construction method of this embodiment has at least the following steps.
(1) Step of installing the formwork 11 (2) Place the heat insulation panel 2 on the formwork 11 with the sides having the grooves 2c facing each other, and the heat insulation blocks 3 fitted into the grooves 2c, 2c. Step (3) A step of placing a hardware 5 on the heat insulating panel 2 at a position corresponding to the heat insulating block 3 and connecting the metal 5 and the heat insulating block 3 with screws 4 (Fig. 5).
(4) Step of placing concrete on the heat insulating panel 2 to construct the ceiling slab 1 (5) Step of removing the formwork 11

As in this embodiment, when the boundary between the two heat insulating panels 2, 2 is closed with the slag prevention tape, the two heat insulating panels 2, 2 are separated between the steps (2) and (3). Add a step of closing the boundary with slag prevention tape. Further, as in this embodiment, when the lower end side of the boundary between the two heat insulating panels 2, 2 is embedded with the joint material 7, after the step (5), the boundary between the two heat insulating panels 2, 2 A step of embedding the joint material 7 in the gap 12 at the lower end of the is added.

In the present invention, the hardware 5 is connected by screws 4 to the heat insulation block 3 arranged across the boundary between the two heat insulation panels 2, 2. It is fixed to the panels 2,2. In addition, since the mounting of the hardware 5 is performed after the heat insulating panel 2 is placed on the formwork 11, there is a risk that the worker may trip over or step on the hardware 5 during the work of placing the heat insulating panel 2. do not have.

Further, in the present embodiment, even if the concrete penetrates into the boundary between the two heat insulating panels 2, 2 when placing concrete, the heat insulating block 3 prevents further penetration. In particular, in this embodiment, since the boundary between the two heat insulating panels 2, 2 is covered with the slag prevention tape 6, it is possible to prevent concrete from entering the boundary, and furthermore, it is arranged at the lower end of the boundary. The joint material 7 also prevents the concrete that has entered the boundary from being exposed on the lower surface side of the heat insulating panel 2. - 特許庁

In this embodiment, the ceiling slab 1 is formed by pouring concrete directly onto the heat insulating panel 2 and hardening it. 4. Firmly integrated with the heat insulating panels 2, 2 via the heat insulating block 3.

In this embodiment, as the hardware 5, commercially available angles and joists are preferably used. Well, there is no particular limitation in the longitudinal direction. When it is cut short and used as shown in FIG. 1, the length in the longitudinal direction (horizontal direction of the paper surface of FIG. 2) is, for example, about 150 mm to 200 mm. Moreover, as shown in FIG. 7, the hardware 5 may be used in a continuous form over a plurality of heat insulating panels 2 . In the case of FIG. 7, the hardware 5 also exerts an effect of integrating a plurality of heat insulating panels 2 together.

In addition, in this embodiment, the hardware 5 and the heat insulation block 3 are connected by the screws 4, but as a fixing tool for connecting the hardware 5 and the heat insulation block 3, something other than the screws 4, such as a nail, is used. However, in order to prevent the heat insulation panel 2 from falling off the ceiling slab 1 due to its own weight, a member having an uneven surface such as a screw or a member having a barb at the tip is more effective from the heat insulation block 3. It is preferable because it is hard to come off.

The heat insulating block 3 is preferably made of a highly heat insulating material, particularly a resin material, and has a thickness of about 5 mm to 10 mm and a width of about 40 mm to 70 mm (horizontal direction of the paper surface of FIG. 3). As the resin material, a hard resin material is preferable for attaching the screws 4, and polyethylene, polystyrene, polypropylene, etc. are preferably used.

As the heat insulating panel 2, one having a surface material 2b on the surface of the lower surface side of the heat insulating material 2a is preferably used. Isocyanurate foams and extruded polystyrene foams (eg, Styrofoam (registered trademark)) are preferably used. Moreover, the surface material 2b is an interior material, and a color steel plate, a Galvalume steel plate (registered trademark), an aluminum plate, a SUS plate, or the like is preferably used. In addition, a heat insulating panel 2 having a surface material on the side of the ceiling slab 1 may be used. If both have the same surface material, they can be placed on the mold 11 with either side facing downward, which facilitates the work. In the present invention, the hardware 5 and the heat insulation block 3 are connected by screws 4 or the like. Since the tip does not need to reach the lower surface of the heat insulating panel 2, even if the heat insulating panel 2 has surface materials on both sides, there is no possibility that the screws 4 will form a thermal bridge connecting the surface materials.

In this embodiment, the groove 2c of the heat insulating panel 2 and the heat insulating block 3 may be provided corresponding to at least the position where the hardware 5 is attached. can be prevented from seeping out to the lower surface side of the heat insulating panel 2, adjacent heat insulating panels 2 can be joined by the heat insulating block 3, and the longer the heat insulating block 3, the easier the alignment between the hardware 5 and the heat insulating block 3. From the point of view of becoming, etc., it is preferable that the groove part 2c and the heat insulation block 3 to be fitted thereto are provided over the entire length of the side surface of the heat insulation panel 2, and on the side surface of the boundary between the two adjacent heat insulation panels 2, 2 It is preferable to provide all of them. Therefore, when the heat insulation panel 2 is arranged over a plurality of rows and columns, it is preferable to provide at least a pair of side surfaces parallel to one of the rows and columns, and more preferably to provide all four side surfaces.

Also, the heat insulation block 3 may be continuous over a plurality of heat insulation panels 2 . When the grooves 2c are provided on all four side surfaces and the positions of the grooves 2c in the thickness direction of the heat insulation panel 2 are all the same, the grooves 2c and 2c intersect each other at the corners formed by the two side surfaces, so that the heat insulation block 3 may be continuous over a plurality of heat insulating panels 2 for one groove 2c, but for the other groove 2c, at the intersection, a portion corresponding to the heat insulating block 3 fitted to one groove 2c is cut. It is sufficient to remove and fit. Further, even when the grooves 2c are provided on all four sides, one and the other of the grooves 2c formed in directions orthogonal to each other are formed at different positions in the thickness direction so that they are fitted to each other. Since the heat insulating blocks 3 do not interfere with each other, the length of the heat insulating blocks 3 can be freely selected.

When the heat insulating block 3 is fitted over the entire length of the side surface of the heat insulating panel 2, it is easy to align the hardware 5 and the heat insulating block 3, and the mounting position of the hardware 5 can be freely selected. becomes easier.

In this embodiment, the heat insulating panels 2 are arranged over a plurality of rows and columns, and the metal fittings 5 are attached only to the boundaries parallel to one of the row direction and column direction, but they are attached to both boundaries. It's okay to be there.

Moreover, the hardware 5 continuous over a plurality of heat insulating panels 2 shown in FIG. 7 and the short hardware 5 shown in FIG. 1 may be used in combination.

In the embodiment of FIGS. 1 to 4, one metal piece 5 is connected to the heat insulating block 3 with one screw 4, but by changing the mounting direction of the metal piece 5, one piece of metal piece 5 can be can be connected to the heat insulating block 3 with two or more screws 4. Regarding such an embodiment, the description of the configuration common to the embodiment of FIGS. 1 to 4 will be omitted, and the different configuration will be described with reference to FIGS. 8 to 12. FIG. Therefore, the preferred configurations applied in the embodiments of FIGS. 1 to 4 are also applied in this embodiment.

8 to 12 are diagrams schematically showing the configuration of an embodiment in which the arrangement direction of the hardware 5 of the embodiment of FIGS. 1 to 4 is changed, and FIG. 9 is a partial plan view of FIG. 8, and is a view of one of the metal fittings 5 in FIG. 8 as seen from above. 10 and 11 are cross-sectional views in the thickness direction (vertical direction) of this embodiment, and FIG. 10 is a schematic cross-sectional view of this embodiment corresponding to the CC′ portion in FIG. 9] is a schematic cross-sectional view of the present embodiment corresponding to the DD' portion in FIG. 9. [FIG.

In the embodiment of FIGS. 1 to 4, the hardware 5 was arranged so as to straddle the boundary between the two heat insulating panels 2, 2 adjacent to each other in the longitudinal direction, but in this embodiment, the hardware 5 is short. The lateral direction (width direction) straddles the boundary between two heat insulating panels 2, 2 adjacent to each other, and the longitudinal direction is arranged parallel to the boundary. Therefore, even if the hardware 5 is short, it can be connected to the heat insulation block 3 with a plurality of screws 4 along the longitudinal direction of the hardware 5 . In particular, when the heat insulating block 3 is fitted over the entire length of the side surface of the heat insulating panel 2, it is easy to align the hardware 5 and the heat insulating block 3, and the mounting position of the hardware 5 can be freely selected. , the work becomes easier.

Also in this embodiment, as shown in FIG. 12, it is possible to use a metal piece 5 that is continuous over a plurality of heat insulating panels 2. Such metal piece 5 and the short piece of metal piece 5 shown in FIG. may be used in combination. Also in this embodiment, the heat insulating panels 2 are arranged over a plurality of rows and columns, and the hardware 5 is attached only to the boundary parallel to either the row direction or the column direction, but it is attached to both boundaries. can be

Furthermore, in the present invention, the embodiments shown in FIGS. 1 to 4 and 7 and the embodiments shown in FIGS. 8 to 12 may be combined.

[Second embodiment]
13 to 16 are diagrams schematically showing the configuration of the second embodiment of the ceiling heat insulation structure of the present invention, and FIG. 13 is a perspective view of this embodiment with the ceiling slab removed, 14 is a partial plan view of FIG. 13, and is a view of one of the metal fittings 5 in FIG. 13 as viewed from above. 15 and 16 are cross-sectional views in the thickness direction (vertical direction) of this embodiment, FIG. 15 is a schematic cross-sectional view corresponding to the EE' portion in FIG. It is a cross-sectional schematic diagram corresponding to the FF' portion in the middle.

In the second embodiment of the present invention, as shown in FIGS. 15 and 16, a ceiling slab 1 made of concrete and a heat insulating panel 2 arranged on the lower surface side of the ceiling slab 1 in contact with the ceiling slab 1 are provided. The heat insulating panel 2 has a surface material 2d on the upper surface side, that is, on the ceiling slab 1 side. In addition, in this embodiment, the heat insulation panel 2 may be equipped with the surface material 2b as an interior material on the lower surface side.

In this embodiment, the hardware 5 is arranged on the surface material 2d of the heat insulation panel 2, and the hardware 5 is connected to the surface material 2d by the screws 4, whereby the hardware 5 and the heat insulation panel 2 are integrated, The hardware 5 is buried in the ceiling slab 1.

Next, the construction method of this embodiment will be described. FIG. 17 is a schematic cross-sectional view showing one step of the construction method, and is a schematic cross-sectional view of the same part as in FIG. 15 in the thickness direction. The construction method of this embodiment has at least the following steps.
(1) A step of installing the formwork 11 (2) A step of placing the heat insulation panel 2 on the formwork 11 (3) Arranging the hardware 5 on the surface material 2d of the heat insulation panel 2 The process of fixing with screws 4 (Fig. 17)
(4) Step of placing concrete on the heat insulating panel 2 to construct the ceiling slab 1 (5) Step of removing the formwork 11

In this embodiment, since the mounting of the hardware 5 is performed after the heat insulation panel 2 is placed on the formwork 11, the worker may trip over or step on the hardware 5 when placing the heat insulation panel 2. there is no risk of

In this embodiment, the ceiling slab 1 is made by pouring concrete directly onto the heat insulating panel 2 and hardening it. Since the hardware 5 is fixed to the heat insulation panel 2 via the surface material 2d, the hardware 5 is firmly fixed to the heat insulation panel 2, thereby firmly connecting the heat insulation panel 2 and the ceiling slab 1. be integrated.

In this embodiment, the hardware 5 is the same as in the first embodiment, and even if it is cut short and used as shown in FIG. 13, as shown in FIG. It may be used in any form. In the case of FIG. 18, the hardware 5 also exerts an effect of integrating a plurality of heat insulating panels 2 .

The screws 4 are also the same as in the first embodiment, and particularly in the present embodiment, the thin surface material 2d is to be connected to the hardware 5, so the screws 4 are preferably used. .

As the heat insulating panel 2, a panel having a surface material 2d at least on the upper surface side of the heat insulating material 2a is used, and preferably, a panel having a surface material 2b as an interior material on the lower surface side is also used. The heat insulating material 2a and the surface materials 2b and 2d are the same as those of the first ceiling heat insulating structure. The screw 4 only needs to penetrate the surface material 2d, and the tip of the screw 4 does not need to reach the lower surface of the heat insulating panel 2. There is no risk of forming a thermal bridge connecting the surface materials 2b and 2d.

In the first embodiment, since the hardware 5 is connected to the heat insulating block 3 arranged at the boundary between the two adjacent heat insulating panels 2, 2, it is necessary to arrange a plurality of heat insulating panels 2 in the horizontal direction. However, in this embodiment, since the hardware is connected to the surface material 2d of the heat insulating panel 2, construction can be performed even in an area where only one heat insulating panel 2 is arranged.

Further, in this embodiment, a plurality of heat insulation panels 2 are arranged in the horizontal direction, and as shown in FIG. The block 3 is configured to be connected. In this embodiment, such a configuration is not necessarily required, but with such a configuration, the two adjacent heat insulating panels 2, 2 are joined via the heat insulating block 3, and when concrete is poured, the two heat insulating panels 2, 2 are joined together. Even if concrete penetrates into the boundary between the heat insulating panels 2, 2, the heat insulating block 3 can prevent further penetration, so it is preferable to have such a configuration.

Furthermore, in the present embodiment, as in the first embodiment, the boundary between the two heat insulating panels 2, 2 on the ceiling slab 1 side is covered with the slag prevention tape 6, thereby preventing concrete from entering the boundary. In addition, by notching the corners of the heat insulating panels 2, 2 at the lower end of the boundary between the two heat insulating panels 2, 2 and embedding the joint material 7 in the gap, the intrusion into the boundary It is preferable to prevent exposed concrete on the lower surface side of the heat insulating panel 2 .

As in this embodiment, when the boundary between the two heat insulating panels 2, 2 is closed with the slag prevention tape, the two heat insulating panels 2, 2 are separated between the steps (2) and (3). Add a step of closing the boundary with slag prevention tape. Further, as in this embodiment, when the lower end side of the boundary between the two heat insulating panels 2, 2 is embedded with the joint material 7, after the step (5), the boundary between the two heat insulating panels 2, 2 A step of embedding a joint material 7 in the gap at the lower end of the is added.

FIG. 13 shows a configuration in which the hardware 5 is arranged with its longitudinal direction facing the same direction. may be arranged such that their longitudinal directions are directed in different directions. Moreover, in the embodiment of FIG. 13 , one piece of hardware 5 is fixed to the heat insulation panel 2 with one screw 4 , but it may be fixed with two or more screws 4 . Furthermore, the hardware 5 continuous over a plurality of heat insulating panels 2 shown in FIG. 18 and the short hardware 5 shown in FIG. 13 may be used in combination.

In the present invention, the first embodiment and the second embodiment may be used in combination. That is, the configurations of FIGS. 1, 7 and 8 and the configurations of FIGS. 13, 18 and 19 may be appropriately selected and combined. For example, as shown in FIG. 20, in the configuration of FIG. 18, the hardware 5 and the heat insulation block 3 may be connected even on the boundary where the heat insulation block 3 is arranged.

1: ceiling slab, 2: heat insulating panel, 2a: heat insulating material, 2b, 2d: surface material, 2c: groove, 3: heat insulating block, 4: screw, 5: hardware, 6: slag prevention tape, 7: joint material, 11: formwork, 12: void

Claims (17)

A ceiling insulation structure comprising a ceiling slab made of concrete and an insulation panel disposed on the lower surface side of the ceiling slab in contact with the ceiling slab,
Hardware is fixed to the ceiling slab side of the heat insulation panel,
A ceiling insulation structure, wherein the hardware is embedded in the ceiling slab. 2. The ceiling insulation structure according to claim 1, wherein the metal fitting has a substantially L-shaped cross section or a substantially U-shaped cross section with an upper opening. 3. The ceiling insulation structure according to claim 2, wherein the hardware has a portion that bites into the ceiling slab. 4. The ceiling insulation structure according to claim 3, wherein the biting portion is a portion in which the upper end portion is bent from the vertical direction to the horizontal direction, or a portion in which the upper end portion is bent downward. . 5. The ceiling insulation structure according to claim 3, wherein the biting portion is a portion formed by deforming a side surface into a substantially dogleg shape, zigzag shape, wave shape, or curved shape. A ceiling insulation structure construction method according to any one of claims 1 to 5,
installing formwork;
placing an insulation panel on the formwork;
arranging and fixing hardware on the insulation panel;
constructing a ceiling slab by pouring concrete over the insulating panels;
removing the formwork;
A method for constructing a ceiling insulation structure, comprising: A plurality of the heat insulation panels are arranged in the horizontal direction,
The insulation panel has a horizontally extending groove on at least one side surface,
At the boundary between the two heat insulating panels where the side surfaces having the groove are in contact with each other, the groove is fitted with a heat insulating block straddling the boundary,
hardware is placed on the boundary;
The ceiling heat insulation structure according to any one of claims 1 to 5, wherein the hardware and the heat insulation block are connected by a fixture. 8. The ceiling heat insulation structure according to claim 7, wherein the hardware is elongated in the horizontal direction, and the longitudinal direction of the hardware is arranged across the boundary. 8. The ceiling heat insulation structure according to claim 7, wherein the hardware is elongated in the horizontal direction, and the longitudinal direction is arranged parallel to the boundary. 10. The ceiling insulation structure according to any one of claims 7 to 9, wherein a slag prevention tape is arranged between the hardware and the insulation panel. The ceiling insulation structure according to any one of claims 7 to 10, wherein the insulation panel has a surface material on the ceiling slab side. 12. The ceiling heat insulation structure according to claim 11, wherein said hardware is also arranged at a position not corresponding to said heat insulation block, and is connected to said surface material by a fixture. A method for constructing a ceiling insulation structure according to any one of claims 7 to 10,
installing formwork;
A plurality of heat insulating panels each having a horizontally extending groove formed on at least one side surface are opposed to each other, and a heat insulating block is fitted from one groove to the other groove to form the formwork. placing on top;
a step of placing metal fittings on the heat insulating panel at positions corresponding to the heat insulating blocks and connecting the metal fittings and the heat insulating blocks with fixtures;
constructing a ceiling slab by pouring concrete over the insulating panels;
removing the formwork;
A method for constructing a ceiling insulation structure, comprising: After placing the heat insulating panel on the formwork and before placing the hardware on the heat insulating panel, a step of closing the boundary between two adjacent heat insulating panels with a slag prevention tape is provided. The construction method of the ceiling insulation structure according to claim 13. The heat insulation panel has a surface material on the ceiling slab side, the hardware is also arranged at a position not corresponding to the heat insulation block, and the metal hardware and the heat insulation block are connected with a fixture, corresponding to the heat insulation block. 15. The method for constructing a ceiling insulation structure according to claim 13 or 14, wherein said hardware arranged at a position where it is not installed is fixed to said surface material. The insulation panel has a surface material on the ceiling slab side,
The ceiling insulation structure according to any one of claims 1 to 5, wherein metal fittings are arranged on the surface material and fixed to the insulation panel. A method for constructing a ceiling insulation structure according to claim 16,
installing formwork;
placing an insulation panel with a facing on at least one surface on the formwork with the facing facing up;
placing hardware on the surface material of the insulation panel and fixing it to the insulation panel;
constructing a ceiling slab by pouring concrete over the insulating panels;
removing the formwork;
A method for constructing a ceiling insulation structure, comprising:

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