JP7166036B1 - LIGHTWEIGHT HIGH INSULATING AND FIRERESISTANT STRUCTURE ON METAL SUBSTRATE ROOF AND CONSTRUCTION METHOD FOR SUCH STRUCTURE - Google Patents

Abstract

[PROBLEMS] To provide a light-weight, highly heat-insulating and fire-resistant structure by laminating a plurality of heat-insulating panels on a metal base roof without using screws penetrating the heat-insulating panels.
SOLUTION: A thermally insulated fire resistant structure comprises a plurality of thermally insulating layers laminated on beams of a building. Each of the plurality of heat insulating layers has a plurality of base members each having at least a rising portion, a connecting portion connected to the rising portion, and a panel mounting portion positioned above the connecting portion. and a plurality of rail members arranged therein. A plurality of purlins are formed by a plurality of base members and a plurality of rail members coupled thereto. Each of the plurality of heat insulating layers has a plurality of heat insulating panels arranged on the panel mounting portion, and the plurality of heat insulating panels and the panel mounting portion are fixed by a plurality of fixing members.
[Selection diagram] Fig. 1

Description

Article 30, Paragraph 2 of the Patent Act applies Hokkaido Kensetsu Shimbun, December 10, 2021, page 3

TECHNICAL FIELD The present invention relates to a heat insulating structure for a metal-backed roof, and more specifically, to a lightweight, highly heat-insulating and fire-resistant structure in which a plurality of heat-insulating panels are laminated on a metal-backed roof without using fixing screws.

BACKGROUND ART In recent years, as a construction method for building roofs, a construction method in which a board or panel-shaped heat insulating material is laid on a metal base and a waterproof layer is applied thereon has been widely adopted. As such a construction method, a mechanical fixing construction method is used. The mechanical fixing method is, for example, the method proposed in Patent Document 1 or Non-Patent Document 1, or the method proposed in Patent Document 2 or Non-Patent Document 2.

In the construction method proposed in Patent Document 1 or Non-Patent Document 1, a heat insulating material is laid on a bent plate-shaped metal plate placed on the purlin, and fixed to the metal plate by penetrating the heat insulating material with a fixing screw. Then, a waterproof sheet is placed on it and supported by a fixing disk. In the construction method proposed in Patent Document 2 or Non-Patent Document 2, for example, a board or panel in which a heat insulating material is sandwiched between steel plates is laid on the purlin, and these are fixed to the purlin with fixing screws that penetrate the board or panel, Furthermore, a waterproof sheet is placed on it and supported by a fixing disk.

On the other hand, in recent years, there is an urgent need to suppress the progress of global warming, and in order to respond to this, concepts such as carbon neutrality and decarbonization have been introduced in various industries. Public facilities such as schools and medium- and large-scale private buildings also require highly insulated and highly airtight buildings in order to reduce greenhouse gases. Under these circumstances, in existing buildings such as public facilities, it is common to build a roof with concrete, install insulation material, waterproof it, and apply insulation material such as glass wool to the ceiling to obtain insulation effect. ing.

JP 2014-1533 A Japanese Patent Application Laid-Open No. 2002-294940

Sumibe Sheet Waterproofing Co., Ltd. website "Waterproofing system, Rooftop waterproofing, Sunbrid - Metal base", <URL: http://www.sunloid-dn.jp/products/roof/sunbrid/> Sumibe Sheet Waterproofing Co., Ltd. website "Waterproofing system, roof waterproofing, Sunbrid-roofboard base", <URL: http://www.sunloid-dn.jp/products/roof/roofboard/>

Both the construction method proposed in Patent Document 1 and Non-Patent Document 1 and the construction method proposed in Patent Document 2 and Non-Patent Document 2 require a large number of screws for fixing insulation panel members such as insulation materials, boards or panels. Then, a large number of screws are used to fix the disk that supports the tarpaulin. Therefore, many screws protrude through the lower surface of the heat insulating panel member, and the presence of many screws may cause dew condensation. In addition, these fixing screws may come loose due to minute vibrations of the building, and water leakage may occur through the through-holes of the heat insulating panel members into which the loose screws are driven. Furthermore, since many screws are used, the number of processes increases.

In addition, the heat insulation structure of conventional roofs, that is, the structure in which the roof is made of concrete, the roof is made of concrete, the heat insulation material is laid, the waterproofing is performed, and the insulation material such as glass wool is applied to the ceiling space to obtain the heat insulation effect is heavy. There is a risk of collapse in the event of a major earthquake.

Furthermore, in the construction methods proposed in Patent Document 1 and Non-Patent Document 1, and the construction methods proposed in Patent Document 2 and Non-Patent Document 2, fixing screws are used to pierce and fix the heat insulating material. The fixing screw may act as a heat bridge and apply heat to the urethane of the heat insulating material, accelerating the combustion of the heat insulating material.

SUMMARY OF THE INVENTION An object of the present invention is to provide a lightweight, highly heat-insulating and fire-resistant structure by laminating a plurality of heat-insulating panels on a metal base roof without using screws that penetrate the heat-insulating panels.

One aspect of the present invention provides an insulated and fire resistant structure for installation in a metal subfloor roof. The heat insulating and fireproof structure includes a plurality of heat insulating layers laminated on the beams of the building, and the lowest heat insulating layer among the plurality of heat insulating layers is fixed to the beams of the building. Each of the plurality of heat insulating layers has a plurality of base members each having at least a rising portion, a connecting portion connected to the rising portion, and a panel mounting portion positioned above the connecting portion. and a plurality of rail members arranged therein. A plurality of purlins are formed by a plurality of base members and a plurality of rail members coupled thereto. Each of the plurality of heat insulating layers has a plurality of heat insulating panels arranged on the panel mounting portion, and the plurality of heat insulating panels and the panel mounting portion are fixed by a plurality of fixing members.

In one embodiment, in the plurality of heat insulating layers, the plurality of rail members in each of the vertically adjacent heat insulating layers are arranged in directions perpendicular to each other.

In one embodiment, each of the panel mounting portions of the plurality of rail members has a plurality of receiving portions, and each of the plurality of fixing members has a connecting portion. A plurality of insulating panels are fixed to the panel mounting portion by engaging the connecting portion with each of the plurality of receiving portions. Each of the plurality of receiving portions has two slits and a raised portion provided to protrude from the surface of the panel mounting portion between the two slits, and the connecting portion passes through the two slits to the raised portion. is preferably inserted under Thereby, the heat insulating panel is fixed to the panel mounting portion. The connecting part preferably has a stopper for preventing the connecting part from coming off the receiving part after being inserted.

In one embodiment, it is preferable that the rising portion of the base member is a plate-like body, and the connecting portion of the rail member is composed of two clamping walls arranged at a distance corresponding to the thickness of the plate-like body. The raised portion and the connecting portion have one or more through holes at corresponding positions, and are connected to each other by inserting the fastening member through the one or more through holes. Preferably, the base member has a substantially L-shaped or substantially I-shaped cross-sectional shape, and the rail member has a substantially T-shaped cross-sectional shape.

In one embodiment, two adjacent heat insulating panels in the plurality of heat insulating panels have a protrusion at the end of one heat insulating panel and a recess having a shape corresponding to the protrusion at the end of the other heat insulating panel. Then, the convex portion and the concave portion are combined with each other by fitting. In this case, at least a portion of the plurality of fixing members has a shape corresponding to the fitting portion between the convex portion and the concave portion. It is preferable that at least a part of the fixing member further has an insertion part that is inserted into one or both of the adjacent heat insulating panels when sandwiched between the fitting parts.

In one embodiment, the uppermost insulating layer of the plurality of insulating layers preferably includes a trough-shaped garter panel having an inclined surface therein.

Another aspect of the present invention provides a method of installing an insulated refractory structure including multiple layers of insulation in a metal sub-roof. The method comprises the steps of: (a) attaching a plurality of foundation members having at least raised portions to beams of a building; (c) attaching a rail member to a plurality of foundation members so that they are arranged parallel to each other by joining a joint portion and a riser portion; (d) attaching another plurality of base members having at least raised portions to the plurality of fixing members; A plurality of separate rail members, each having a placement portion, are arranged parallel to each other and orthogonal to the plurality of rail members arranged in the above step (b) by connecting the connecting portion and the rising portion. (f) securing another plurality of insulation panels to another plurality of rail members using another plurality of securing members coupled to another plurality of rail members; and a step. In one embodiment, after step (f) above, steps (d) and (e) can be further repeated to further laminate one or more insulating layers.

In one embodiment, step (f) above includes securing one or more gutter-shaped garter panels to another plurality of rail members.

According to the present invention, since a plurality of heat insulating panels are laminated without using fixing screws, deterioration of heat insulation performance due to the fixing screws becoming a heat bridge is suppressed, and heat is transferred to the fixing screws in the event of a fire. It is possible to construct a lightweight metal base roof that can prevent the inside of the heat insulating panel from burning through the heat. In addition, according to the present invention, since a plurality of heat insulating panels can be fixed to the purlin without using fixing screws, problems such as condensation, missing screws, and water leakage that occur in the conventional method using a large number of screws occur. It is possible to construct a light-weight metal base roof with less defects without causing any defects.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a thermal insulation and refractory structure including multiple insulation layers laminated to a beam of a building according to an embodiment of the present invention, (a) showing a first insulation layer mounted on the beam; (b) shows a second heat insulating layer laminated on the first heat insulating layer. 1 is a perspective view showing structures of a base member and a rail member used for one heat insulating layer constituting a heat insulating and fireproof structure according to one embodiment of the present invention; FIG. FIG. 2(a) is a perspective view of a fixing member constituting a heat insulating and fireproof structure according to an embodiment of the present invention, a perspective view (a) showing a rail member in which a receiving portion into which the fixing member is inserted is arranged, and a fixing member connected to the rail member; It is a perspective view (b) showing a folded state. It is the perspective view (a) and three-view (b) of the fixing member which comprises the heat insulation fireproof structure by another embodiment of this invention. Fig. 4 shows a side view of a state in which the fixing member of the heat insulating and fireproof structure according to one embodiment of the present invention is attached to the heat insulating panel, (a) is the case where the fixing member shown in Fig. 3 is used, and (b) is the figure. 4 is the case of using the fixing member shown in FIG. It is a figure which shows the construction procedure of the heat insulation fireproof structure by one Embodiment of this invention. It is a figure which shows the construction procedure of the heat insulation fireproof structure by one Embodiment of this invention. It is a figure which shows the construction procedure of the heat insulation fireproof structure by one Embodiment of this invention. It is a figure which shows the construction procedure of the heat insulation fireproof structure by one Embodiment of this invention. It is a figure which shows the construction procedure of the heat insulation fireproof structure by one Embodiment of this invention. Fig. 10 shows a heat insulating and fire resistant structure according to another embodiment of the present invention, the heat insulating and fire resistant structure with a garter panel installed on a portion of the second heat insulating layer;

The present invention will be described in detail below with reference to the drawings.

[Highly insulated and fireproof structure]
FIG. 1 is a perspective view showing a thermal insulation and refractory structure 1 including multiple thermal insulation layers laminated to a beam 2 of a building according to one embodiment of the present invention. FIG. 1(a) shows the first heat insulating layer 1A attached on the beam 2, and FIG. 1(b) shows the second heat insulating layer 1B laminated on the first heat insulating layer 1A. FIG. 2 is a perspective view showing the structure of the base member 11 and the rail member 12 used for one heat insulating layer that constitutes the heat insulating and fireproof structure 1. As shown in FIG. FIG. 3 is a perspective view (a) showing a perspective view of the fixing member 20 constituting the heat insulating and fireproof structure 1 according to one embodiment of the present invention and a rail member 12 having a receiving portion 122c into which the fixing member 20 is inserted. , (b) showing a state in which the fixing member 20 is connected to the rail member 12; FIG. 4 is a perspective view (a) and a trihedral view (b) of a fixing member 20 that constitutes a heat insulating and fireproof structure 1 according to another embodiment of the present invention. FIG. 5 is a diagram showing a state in which the fixing member 20 of the heat insulation and fireproof structure 1 according to one embodiment of the present invention is attached to the heat insulation panel 30. As shown in FIG.

As shown in FIG. 1, a heat insulating and fireproof structure 1 according to the present invention is constructed by fixing a first heat insulating layer 1A to a beam 2 of a building and fixing a second heat insulating layer 1B on the first heat insulating layer 1A. has a structure in which two insulating layers are fixed on top of 2 . The number of laminated heat insulating layers is not limited to two layers, and any number of heat insulating layers can be laminated. In the following, the heat insulating and fireproof structure 1 consisting of two heat insulating layers will be described. In addition, in FIG. 1, since the base members 11A other than the two base members 11A on the frontmost side of the drawing are hidden by the rail member 12A, they are not shown. In addition, in FIGS. 1 and 2, the purlins 10, 10A, and 10B are drawn in a cut-away state on the front side of the drawing for easy understanding of the structure.

The first heat insulating layer 1A has a plurality of rows of purlins 10A. The multiple rows of purlins 10A each extend in a direction perpendicular to the length direction of the beam 2 and are arranged in parallel with each other at intervals along the length direction of the beam 2 . Each row of purlins 10A has a plurality of base members 11A and one or more rail members 12A. Each row of the purlins 10A may be composed of a plurality of rail members 12A continuous in the length direction, or may be composed of one rail member 12A. The plurality of foundation members 11A are attached to the same position of each of the plurality of beams 2 at intervals along the length direction of the beams 2 . The rail members 12A are arranged across the plurality of beams 2 so as to be perpendicular to the length direction of the beams 2, and are coupled to the plurality of foundation members 11A attached to the respective beams 2. As shown in FIG.

The first heat insulating layer 1A comprises a heat insulating panel 30A arranged on the rail member 12A. The rail member 12A and the heat insulation panel 30A are fixed to each other via the fixing member 20A, and the plurality of heat insulation panels 30A are arranged so as to be spread over the rail member 12A. The heat insulating panel 30A can typically be a board or panel in which a heat insulating material is sandwiched between steel plates, but is not limited to this. It is also possible to use a panel or the like on which layers are applied. In this case, the waterproof layer applied to the panel is not limited, and for example, urethane waterproofing, asphalt waterproofing, sheet waterproofing, etc. can be used as appropriate.

A second heat insulating layer 1B is arranged on the first heat insulating layer 1A. The structure of the second heat insulating layer 1B is the same as that of the first heat insulating layer 1A, and includes a purlin 10B including a base member 11B and rail members 12B, fixing members 20B, and heat insulating panels 30B. A base member 11B of the second heat insulating layer 1B is attached to each of the plurality of fixtures 20A of the first heat insulating layer 1A. A rail member 12B is coupled to the base member 11B. In the second heat insulating layer 1B, a plurality of rail members 12B are arranged parallel to each other at intervals so as to be perpendicular to the rail members 12A of the first heat insulating layer 1A (that is, parallel to the beams 2). One rail member 12B is coupled with a plurality of base members 11B attached to fixtures 20A fixed at the same positions on adjacent rail members 12A of the first heat insulating layer 1A. A heat insulating panel 30B is arranged on the rail member 12B. The rail member 12B and the heat insulating panel 30B are fixed to each other via the fixing member 20B, and the plurality of heat insulating panels 30B are arranged so as to be spread over the rail member 12B.

Numbers of base members 11A and 11B and rail members 12A and 12B, intervals between rail members 12A and 12B, numbers and sizes of heat insulation panels 30A and 30B, and fixing in each of the first heat insulation layer 1A and the second heat insulation layer 1B The number of members 20A and 20B and the interval between adjacent fixing members 20A and 20B are not particularly limited, and may be appropriately determined according to conditions such as the use, size, structure and strength of the building. good.

All of the plurality of heat insulating layers in the present invention can have the same basic structure. In the following, common structures that can be used for multiple insulating layers are described.

FIG. 2 shows a purlin 10 comprising a plurality of foundation members 11 and one rail member 12. FIG. Each of the plurality of foundation members 11 can be a steel material having a substantially L-shaped cross-sectional shape in the present embodiment. The base member 11 has a mounting portion 111 which is a rectangular plate-like body, and a rising portion 112 which is a rectangular plate-like body formed to rise from one long side of the mounting portion 111 . The angle between the mounting portion 111 and the rising portion 112 is preferably 90°, but is not limited to 90° depending on the roof structure. Each of the base members 11 is preferably arranged at a position where the beam 2 and the rail member 12 intersect (see FIG. 1). The mounting portion 111 can be attached to the beam 2 using conventional means such as welding, bolts and nuts.

In the present embodiment, the rising portion 112 is a rectangular plate having the same length as the mounting portion 111, but is not limited thereto, and has the strength and workability necessary for the purlin 10. As long as it can be maintained, for example, it can be configured as a plurality of plate-like bodies arranged at intervals in the lengthwise direction of the mounting portion 111 (that is, the lengthwise direction of the purlin 10). Also, in the present embodiment, the rising portion 112 is formed so as to rise from one long side of the mounting portion 111, but is not limited to this, and maintains the strength and workability necessary for the purlin 10. As long as it can be done, for example, it can be formed so as to rise from the central portion in the width direction of the mounting portion 111 (that is, the width direction of the purlin 10).

In another embodiment, the base member 11 has a substantially I-shaped cross-sectional shape, that is, a rectangular plate-like body that is attached to the beam 2 as long as the strength and workability required for the purlin 10 can be maintained. It can also be made to stand on top. In this case, both sides of the portion where the plate-like body contacts the beam 2 can be fixed to the beam 2 by fillet welding, for example. In this embodiment, the portion of the plate-like body that contacts the beam 2 functions as a mounting portion, and the portion that extends from the mounting portion in a direction perpendicular to the upper surface of the beam 2 functions as a rising portion.

The rail member 12 may have a substantially T-shaped cross-sectional shape, as shown in FIG. One rail member 12 has a joint portion 121 and a panel mounting portion 123 positioned above the joint portion 121 . The connecting portion 121 is clamping walls 121a and 121b each composed of two elongated rectangular plate-like bodies arranged so that their main surfaces face each other with an interval therebetween. The rising portion 112 of the base member 11 can be inserted between the holding walls 121a and 121b. Appropriately set. By sandwiching the rising portion 112 of the base member 11 between the holding walls 121a and 121b of the connecting portion 121, the base member 11 and the rail member 12 can be connected in a more stable state.

A top plate 122 is provided on the coupling portion 121 . The coupling portion 121 continues downward from the widthwise central portion of the lower surfaces 122 a and 122 b of the upper plate 122 . A member forming the panel mounting portion 123 is attached to the top plate 122 so that the edge of the member wraps around the edge of the top plate 122 . The panel mounting portion 123 is formed as an elongated rectangular surface so that the heat insulating panel 30 can be stably mounted thereon.

In the present embodiment, the connecting portion 121 is configured as holding walls 121a and 121b, but is not limited to this. It may be formed as a single plate-like body. In this case, for example, one main surface of the connecting portion 121, which is a plate-like body, is opposed to be in contact with one of the main surfaces of the rising portion 112, and the two are connected by some known means (for example, the fastening member 13). means). In addition, in the present embodiment, the connecting portion 121 is configured as holding walls 121a and 121b made up of two plate-like bodies, but is not limited to this. For example, each of the holding walls 121a and 121b may be formed as a plurality of plate-like bodies as long as the .

The rail member 12 in this embodiment has a structure including holding walls 121a and 121b, an upper plate 122, and a panel mounting portion 123 by bending three plates, but the structure is limited to this. not a thing In another embodiment, for example, a panel mounting portion 123 may be provided by welding a single plate-like body to the upper ends of sandwiching walls 121a and 121b provided at intervals. In still another embodiment, the holding walls 121a and 121b and the panel mounting portion 123 may be integrally formed by bending a single plate.

It is preferable that one or a plurality of through holes 112h are formed in the rising portion 112 so as to penetrate both surfaces thereof. In addition, it is preferable that the coupling portion 121 also has one or more through holes 121h penetrating through the two holding walls 121a and 121b. The through hole 112 h of the rising portion 112 and the through hole 121 h of the connecting portion 121 are provided at positions corresponding to when the rising portion 112 is inserted between the clamping walls 121 a and 121 b of the connecting portion 121 . By inserting fastening members 13 such as bolts and nuts into these through holes 112h and 121h and fastening the raised portion 112 and the coupling portion 121, both can be coupled to each other.

Either or both of the through hole 112h and the through hole 121h are preferably loose holes. By forming the through holes 112h and 121h as loose holes, the height of the panel mounting portion 123 can be finely adjusted according to construction conditions and the like.

A receiving portion 124 is arranged at a substantially central portion in the width direction of the panel placing portion 123 of the rail member 12 . Although only one receiving portion 124 is shown in FIG. 2 for the sake of simplification of the drawing, a plurality of receiving portions 124 are actually provided in the longitudinal direction of the panel mounting portion 123 . The receiving portion 124 has two slits 124a and 124b extending in the width direction provided to penetrate the panel mounting portion 123, and a raised portion 124c provided between the two slits 124a and 124b. The connecting portion 201 of the fixing member 20 is inserted into the two slits 124a and 124b, and the receiving portion 124 is connected to the engaging portion 201b of the connecting portion 201, as will be described later. The height and width of the two slits 124a, 124b and the raised portion 124c are set to correspond to the engaging portion 201b. These lengths (the length in the longitudinal direction of the rail member 12) are not particularly limited as long as they are shorter than the length of the base 201a of the connecting portion 201. FIG.

It is preferable that the rail member 12 further has a protruding portion 125 protruding from the lower portion of the coupling portion 121 in parallel with the panel mounting portion 123 . In one embodiment, the protruding part 125 includes a plate-like body 125a that protrudes from the lower side of the sandwiching wall 121a perpendicularly to the surface of the sandwiching wall 121a, and a plate-like body 125a that protrudes from the lower side of the sandwiching wall 121b perpendicularly to the surface of the sandwiching wall 121b. It consists of a plate-like body 125b projecting in the direction opposite to the body 125a. By providing the protrusions 125 , panels other than the insulating panels 30 can be placed between adjacent purlins 10 .

The heat insulating and fireproof structure 1 includes a fixing member 20 for fixing the heat insulating panel 30 and the purlin 10 . The fixed members 20 are connected to the rail members 12 of the purlin 10 at predetermined intervals, as shown in FIG. The fixing member 20 has a connecting portion 201 for connecting to the rail member 12 and a mounting portion 202 for mounting the heat insulation panel 30, as shown in FIG. 3(a). In the embodiment of FIG. 3, the connecting portion 201 and the mounting portion 202 are integrally formed, but the present invention is not limited to this. , they may be connected, for example by welding or the like. The material of the fixing member 20 is not particularly limited as long as the object of the present invention can be achieved, and metal, resin, or the like can be used as appropriate.

The connecting portion 201 has a base 201 a that is inserted into the receiving portion 124 provided on the panel mounting portion 123 . As shown in FIG. 3A, the fixed member 20 and the rail member 12 are connected by inserting the base 201a into the receiving portion 124 through the slits 124a and 124b. The length of the base 201a is such that it can be securely inserted into the receiving portion 124, that is, the two slits 124a and 124b and the raised portion 124c, and the connection between the fixing member 20 and the rail member 12 can be reliably realized. , is not particularly limited. A portion of the base 201a that is hidden by the raised portion 124c when inserted into the receiving portion 124 serves as an engaging portion 201b.

Preferably, the engaging portion 201b is provided with a stopper 201c projecting downward from the lower surface of the engaging portion 201b. The stopper 201c is formed so as to protrude smoothly downward toward the rear (in the direction of the mounting portion 202) from the tip of the connecting portion 201 (in the direction opposite to the mounting portion 202), and the rear is vertically steep. It is formed as an end face. Therefore, once the base 201a is inserted into the receiving portion 124, the steep end surface of the stopper 201c is caught by the lower edge of the slit 124a, preventing the connecting portion 201 from easily coming off from the receiving portion 124. FIG. The number of stoppers 201c is not limited to one, and two stoppers may be arranged side by side in the width direction of the base 201a.

A rib 201d for improving the strength of the connecting portion 201 is preferably provided on the upper surface of the base 201a. The position, number, length, height, etc. of the ribs 201d are not particularly limited as long as they are effective in reinforcing the connecting portion 201 . The height from the base 201a to the top of the rib 201d in the engaging portion 201b is set to correspond to the two slits 124a, 124b and the raised portion 124c.

The mounting portion 202 of the fixing member 20 is continuous with the base 201a in a state in which one plate-like body is bent at a plurality of locations. The fixing member 20 is attached to the heat insulating panel 30 by sandwiching the bent mounting portion 202 between the opposing ends of the adjacent heat insulating panels 30 . That is, as shown in FIG. 5(a), two adjacent heat insulating panels 30 have a convex portion 31a at the end 31 of one heat insulating panel 30, and the end 32 of the other heat insulating panel 30 has a convex portion 31a. It is processed so as to have a concave portion 32a having a shape corresponding to the convex portion 31a. Adjacent heat insulation panels 30 are structured to be combined with each other by fitting the projections 31a and the recesses 32a. The mounting portion 202 of the fixing member 20 is bent so as to correspond to the shape of the portion where the convex portion 31a and the concave portion 32a are fitted, and the mounting portion 202 is folded into the fitting portion of the combined heat insulating panel 30. The fixing member 20 can be attached to the heat insulating panel 30 by pinching.

As shown in FIG. 4, the mounting portion 202 is preferably provided with a plurality of pin-shaped insertion portions 202a. The insertion portion 202 a is provided so as to protrude from the vertical surface 202 c of the attachment portion 202 . The insertion portion 202a can be used by forming a wedge-shaped cut in the vertical surface 202c of the mounting portion 202, and raising the insertion portion 202a from the cut during construction (after raising the insertion portion 202a, the opening 202b is formed. ). In FIG. 4, six insertion portions 202a are raised on one side of the vertical surface 202c, but this is not a limitation, and three insertion portions 202a are raised on both sides of the vertical surface 202c. good too. The insertion portion 202a is not limited to the form shown in FIG. 4, and may be formed by welding a pin to the vertical surface 202c. Further, the number of insertion sections 202a is not limited to six, and the length is not limited either. Furthermore, in FIG. 4, the six insertion sections 202a are provided at different positions in the height direction, but they are not limited to this and may be provided at the same height.

When the mounting portion 202 is sandwiched between the ends of the adjacent heat insulating panels 30, the insertion portion 202a is inserted into the heat insulating layer of the heat insulating panel 30, thereby fixing the heat insulating panel 30 and the fixing member 20 more firmly. At the same time, it is possible to more effectively prevent the panel from rising. Moreover, when the heat insulating panel 30 is formed by sandwiching a heat insulating material between two steel plates, it is possible to suppress the movement of the heat insulating panel 30 caused by expansion and contraction of the steel plates due to heat.

The fixing member 20 is not limited to the structure shown in FIGS. For example, two adjacent heat insulating panels 30 have two or more protrusions 31a at the end 31 of one heat insulating panel 30, and the number corresponding to the number of protrusions 31a at the end 32 of the other heat insulating panel 30. , and may be processed to have two or more recesses 32a of different shapes. When the heat insulating panel 30 having such a structure is used, the fixing member 20 is provided with mounting portions 202 that are bent at a plurality of points in a shape corresponding to the shape of the end portions 31 and 32 of the heat insulating panel 30. be able to.

[Construction method for heat insulation and fireproof structure]
Next, a construction method for the heat insulating and fireproof structure 1 according to one embodiment of the present invention will be described with reference to FIGS. 6A to 6E. Here, a heat insulating and fireproof structure 1 in which two heat insulating layers 1A and 1B are laminated will be described as an example. In the following description, the reference numbers of the members forming the first heat insulating layer 1A are denoted by "A", and the reference numbers of the members forming the second heat insulating layer 1B are denoted by "B". there is Also, to avoid cluttering the drawings, not all members and reference numbers in the following description are shown in the drawings.

First, as shown in FIG. 6A, a base member 11A that constitutes the purlin 10A of the first heat insulating layer 1A is attached to a predetermined position on the beam 2 of the building. The purlin 10A has a structure in which the base member 11A and the rail member 12A are combined as described above. Therefore, the foundation members 11A constituting the purlin 10A can be brought into the construction site in advance, and workers can attach the mounting portions 111 of the foundation members 11A to the beams 2 by welding, bolts, or the like during steel frame construction. . The foundation members 11A may be attached to the beams 2 in advance and then carried into the construction site.

Next, the rail member 12A is joined to the base member 11A attached to the beam 2 to complete the purlin 10A. The rail member 12A is arranged so that the rising portion 112A of the base member 11A is inserted into the joint portion 121A, and the through hole 112hA provided in the rising portion 112A is aligned with the through hole 121hA provided in the joint portion 121A. Then, the base member 11A and the rail member 12A can be connected by inserting the fastening members 13A such as bolts and nuts into the aligned through holes 112hA and 121hA and fastening them. Since the through holes 112hA and 121hA are formed as loose holes, the height of the rail member 12A is finely adjusted as necessary. Thus, the purlin 10A is completed. In addition, the purlin 10A extends in a direction orthogonal to the beam 2 (that is, extends in a direction perpendicular to the paper surface in FIG. 6A).

Next, the insulation panel 30A is placed on the completed purlin 10A. First, the connecting portion 201 of the fixing member 20A is inserted into the receiving portion 124A of the rail member 12A to connect the fixing member 20A and the rail member 12A as shown in FIG. 6B. Next, the mounting portion 202A of the fixing member 20A is sandwiched between the opposing ends 31A, 32A of the adjacent heat insulating panel 30A, and the gap between the convex portion 31aA of one end portion 31A and the concave portion 32aA of the other end portion 32A is A plurality of heat insulating panels 30B are arranged by folding them inward. At this time, the insertion portion 202aA of the fixing member 20A is inserted into the end surface of the heat insulating panel 30B. Thus, the first heat insulating layer 1A is completed.

Next, the second heat insulating layer 1B is laminated on the first heat insulating layer 1A. First, as shown in FIG. 6C, the base member 11B of the second heat insulating layer 1B is attached to the upper surface 202dA of each fixing member 20A of the first heat insulating layer 1A. A known method can be used to fix the fixing member 20A and the base member 11B. For example, as shown in FIG. can be used.

The rail members 12B are coupled to the attached base member 11B to complete the purlin 10B, as shown in FIG. 6D. The connection between the base member 11B and the rail member 12B is the same as in the case of the first heat insulating layer 1A. The purlin 10B extends parallel to the beam 2 (that is, in FIG. 6D, extends in the horizontal direction of the paper).

Next, the insulation panel 30B is placed on the completed purlin 10B. As in the case of the first heat insulating layer 1A, as shown in FIG. 6E, the fixing member 20B is inserted into the receiving portion 124B to connect the fixing member 20B and the rail member 12B, and the mounting portion 202B of the fixing member 20B is A plurality of heat insulating panels 30B are arranged so as to be sandwiched between the facing ends 31B and 32B of adjacent heat insulating panels 30B. Thus, the second heat insulating layer 1B is completed.

If necessary, an aluminum tape (not shown) is attached to the connecting portion (joint) 4 of the heat insulating panel 30B of the second heat insulating layer 1B to form a urethane waterproof layer on the entire upper surface of the heat insulating panel 30B.

[Arrangement of Garter Panel]
FIG. 7 shows an embodiment in which a trough-like garter panel 50 is placed on part of the second insulation layer. The garter panel 50 has a length in a direction perpendicular to the paper surface of FIG. It is a shaped member and can be molded using the same heat insulating material as the heat insulating panel 30 . The garter panel 50 has a high end portion 50a on the rear side in the length direction and a low end portion 50b on the front side in the length direction as viewed in FIG. The slanted surface 50c continues, and rainwater or the like that has entered inside flows from the high end 50a through the slanted surface 50c toward the low end 50b. Rainwater that has flowed to the lower end 50b is discharged from a drainage path (not shown) connected to the lower end 50b.

The end walls 51, 52 of the garter panel 50 have the same end structure as the insulation panel 30B and are secured in the same manner as the insulation panel 30B. That is, the mounting portion 202B of the fixing member 20B is sandwiched between the end portion 31B of the adjacent heat insulating panel 30B and the end wall 52 of the garter panel 50, and the convex portion 31aB of the end portion 31B and the concave portion 52a of the end wall 52 are separated. fold in between Similarly, the mounting portion 202B of the fixing member 20B is sandwiched between the end portion 32B of the adjacent heat insulating panel 30B and the end wall 51 of the garter panel 50, and the concave portion 32aB of the end portion 32B and the convex portion of the end wall 51 51a. At this time, the insertion portion 202aB of the fixing member 20B is inserted into the end portion 31B of the heat insulating panel 30B and the end wall 51 of the garter panel 50 at this time. Thus, the garter panel 50 is arranged on the second heat insulating layer 1B.

1 Thermal insulation and fireproof structure 2 Beam

1A First heat insulating layer 10A Purlin 11A Foundation member 12A Rail member 20A Fixing member 30A Heat insulating panel 1B Second heat insulating layer 10B Purlin 11B Foundation member 12B Rail member 20B Fixing member 30B Heat insulating panel

10 Purlin 11 Foundation member 111 Mounting portion (plate-like body)
112 Rising portion (plate-like body)
112h through hole (loose hole)
12 rail member 121 coupling portion 121h through hole (loose hole)
121a, 121b holding wall (plate-like body)
122 upper plate 122a, 122b lower surface 123 panel mounting portion 124 receiving portion 124a, 124b slit 124c raised portion 125 projecting portion 13 fastening member 14 fastening member 20 fixing member 201 connecting portion 201a base 201b engaging portion 201c stopper 201d rib 202 mounting portion 202a insertion portion 202b opening 202c vertical surface 202d upper surface 30 heat insulating panel 31 one end portion 31a convex portion 32 other end portion 32a concave portion 40 joint 50 garter panel 50a high end portion 50b bottom end portion 50c inclined surface 51 one end wall 51a Convex portion 52 Other end wall 52a Concave portion

Claims (14)

A heat insulating and fire resistant structure constructed on a metal base roof,
comprising a plurality of heat insulating layers laminated on the beams of the building, wherein the lowest heat insulating layer among the plurality of heat insulating layers is fixed to the beams of the building;
Each of the plurality of heat insulating layers,
a plurality of base members having at least raised portions;
a plurality of rail members arranged parallel to each other, each having a coupling portion coupled to the rising portion and a panel mounting portion positioned above the coupling portion;
a plurality of heat insulating panels arranged on the panel mounting portion;
and a plurality of fixing members connected to the rail member and fixing the plurality of heat insulating panels to the panel mounting portion. In the plurality of heat insulating layers, the plurality of rail members of the heat insulating layers that are vertically adjacent to each other are arranged in directions orthogonal to each other.
The heat insulating and fireproof structure according to claim 1. Each of the panel mounting portions of the plurality of rail members has a plurality of receiving portions, each of the plurality of fixing members has a connecting portion,
The plurality of heat insulating panels are fixed to the panel mounting portion by engaging the connecting portion with each of the plurality of receiving portions.
The heat insulating and fireproof structure according to claim 1 or 2. Each of the plurality of receiving portions has two slits and a protuberance provided to protrude from the surface of the panel mounting portion between the two slits,
the connecting portion is inserted under the ridge through the two slits;
The heat insulating and fireproof structure according to claim 3. The connecting portion has a stopper for preventing the connecting portion from coming off from the receiving portion after being inserted.
The heat insulating and fireproof structure according to claim 3. The rising portion is a plate-like body,
The connecting portion is composed of two sandwiching walls arranged at an interval corresponding to the thickness of the plate-like body,
The heat insulating and fireproof structure according to claim 1 or 2. The rising portion and the connecting portion each have one or more through-holes at corresponding positions, and are connected to each other by inserting a fastening member through the one or more through-holes.
The heat insulating and fireproof structure according to claim 1 or 2. The base member has a substantially L-shaped or substantially I-shaped cross-sectional shape,
3. The heat insulating and fireproof structure according to claim 1, wherein the rail member has a substantially T-shaped cross section. Two adjacent heat insulating panels among the plurality of heat insulating panels have a convex portion at the end of one heat insulating panel and a concave portion having a shape corresponding to the convex portion at the end of the other heat insulating panel. It is a structure that is combined with each other by fitting the part and the recess,
at least a part of the plurality of fixing members has a shape corresponding to a fitting portion between the convex portion and the concave portion;
The heat insulating and fireproof structure according to claim 1 or 2. The at least part of the fixing member further has an insertion portion that is inserted into one or both of the adjacent heat insulating panels when sandwiched between the fitting portions.
The heat insulating and fireproof structure according to claim 9. The uppermost heat insulating layer among the plurality of heat insulating layers includes a gutter-shaped garter panel having an inclined surface inside,
The heat insulating and fireproof structure according to claim 1 or 2. 1. A method for constructing a heat insulating and fire resistant structure including a plurality of heat insulating layers in a metal subfloor roof, comprising the steps of:
(a) attaching a plurality of foundation members having at least raised portions to beams of a building;
(b) a plurality of rail members each having a connecting portion and a panel mounting portion positioned above the connecting portion so as to be arranged parallel to each other by connecting the connecting portion and the rising portion; attaching to the plurality of foundation members;
(c) securing a plurality of insulation panels to the plurality of rail members using a plurality of securing members coupled to the rail members;
(d) attaching another plurality of base members having at least raised portions to the plurality of fixing members;
(e) another plurality of rail members, each having a joint and a panel rest located on top of the joint, parallel to each other and A step of attaching to the plurality of different base members so as to be orthogonal to the plurality of rail members arranged in the step (b);
(f) securing another plurality of insulation panels to said another plurality of rail members using another plurality of securing members coupled to said another rail member. 13. The method of claim 12, wherein after step (f), one or more insulating layers are further laminated by further repeating steps (d) , (e) and (f) . 14. The method of claim 12 or claim 13, wherein step (f) includes securing one or more gutter-shaped garter panels to the other plurality of rail members.

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