JP5398389B2 - Fireproof insulation panel and fireproof insulation panel joint structure - Google Patents

Description

  The present invention relates to a fireproof and heat insulating panel and a joining structure of the fireproof and heat insulating panel.

  In a relatively large building such as a warehouse or a factory, a fireproof insulation panel is installed as a partition for the purpose of preventing the spread of fire in the event of a fire, and is divided into a plurality of spaces of a certain area or less. A fireproof insulation panel generally has a structure in which a heat insulating material such as rock wool is sandwiched between two steel plates as a core material, and it is stipulated by the Building Standards Law to clear a fireproof performance test according to a predetermined standard. Yes. In order to prevent the spread of fire, such a refractory heat insulation panel is installed so that a plurality of members having a length extending from the floor to the ceiling are joined in the transverse direction to seal one compartment. As a structure for joining the fireproof heat insulating panel in the lateral direction, there is an uneven fitting structure in which a groove formed on one of the side surfaces to be joined to each other is fitted with a ridge formed on the other side in the groove. It is general (refer patent document 1 grade | etc.,).

JP 2009-7874 A

  In the partition which joined the some fireproof heat insulation panel, the joint part which is a junction part of a panel is made into the weak point of fireproof heat insulation. In other words, due to the high heat at the time of fire, the end of the steel plate at the joint is deformed by thermal expansion and a gap is formed, etc., and there is a risk that flame and radiant heat may reach the opposite non-heated surface side through the joint. is there. Therefore, it is considered effective to make the joints in the concave-convex manner as described above, because the gap between the joint end faces becomes a maze, and it is difficult for flames and radiant heat to pass. However, in recent years, with the improvement of safety standards, higher fireproof and heat insulating properties are demanded. For this purpose, in many cases, a complicated joining structure is required.

  Accordingly, an object of the present invention is to provide a fire-resistant and heat-insulating panel and a fire-resistant and heat-insulating panel joining structure that can achieve a great improvement in fire-resistant and heat-insulating properties with a simple structure and low cost.

The joining structure of the fireproof heat insulation panel of this invention is the 1st joining end surface formed in one side surface among the side surfaces mutually joined of the fireproof heat insulation panel formed by inserting a heat insulating material as a core material between two steel plates. And a second joining end face formed on the other side face to join the refractory heat insulating panels, and the first joining end face extends from both sides of the joining end face in the width direction. A pair of outer protrusions extending in the direction of butting against the second joining end surface, a large groove formed inside these outer protrusions, and a small protrusion that protrudes in the butting direction formed on the bottom surface of the large groove And the second joint end surface includes a large convex portion that fits into the large groove portion of the first joint end surface, and the small convex strip formed at the tip of the large convex portion. A small groove portion that fits into the portion, and the first joining end surface is The most advanced portion where the two steel plates are bent inward extends to the middle of the large groove portion, the small convex strip portion is constituted by the heat insulating material, and the second joining end surface is formed by the two pieces The most advanced portion where the steel plate is bent inward extends to the middle of the large ridge, the small groove is formed of the heat insulating material, and the large groove and the small ridge of the first joining end surface. The large protrusions and the small groove portions of the second joint end face are respectively fitted to the portions. In addition, the state of fitting in the present invention refers to a state in which the concave and convex portions are fitted into each other in a state where there is a gap between the joint end surfaces, in addition to the state in which the joint end surfaces are in close contact with each other and the concave and convex portions are closely fitted. Including the state.

  According to the joining structure of the fireproof thermal insulation panel of the present invention, the structure in which the large protruding portion on the second joining end surface side is fitted to the large groove portion on the first joining end surface side is a conventional uneven fitting, Furthermore, in the present invention, a small convex strip portion which is a convex portion is formed on the bottom surface of the large groove portion on the first joint end surface side which is a concave side as a whole, while the second portion which is a convex side as a whole. This is a structure in which a small groove portion which is a concave portion is formed at the tip of the large convex strip portion on the joining end face side, and the small groove portion is fitted to the small convex strip portion.

  That is, the concave / convex fitting in the direction opposite to the entire concave / convex fitting is provided inside the joint structure which is the concave / convex fitting as a whole. By so-called two-step uneven fitting, the heat path between the joining end faces from one side of the panel to the opposite side becomes a more complicated labyrinth and becomes longer. For this reason, the fire-proof heat insulation in a junction part will improve significantly. Further, since this can be achieved by processing the joint end face to form a two-step concave / convex fitting structure, the structure is simple and can be realized at low cost.

  In the joining structure of this invention, it is set as the preferable form that the heat insulation plate is inserted | pinched by the said small convex part and the said small groove part in the state crossing between these small convex parts and a small groove part. According to this aspect, the heat path becomes a more complicated labyrinth and further lengthened by the heat insulating plate, and the fire resistance and heat insulation can be further improved.

  Next, the fireproof thermal insulation panel of the present invention is characterized in that the first joint end face of the joint structure is formed or the second joint end face is formed.

  According to the present invention, there is an effect that fire resistance and heat insulation can be greatly improved with a simple structure and low cost.

It is a perspective view which shows the state which constructed the partition with the fireproof heat insulation panel which concerns on one Embodiment of this invention. It is sectional drawing which shows the joining structure of the fireproof heat insulation panel which concerns on one Embodiment. It is sectional drawing which shows the detail of the joining structure of the fireproof heat insulation panel which concerns on one Embodiment. It is sectional drawing which shows the detail of the joining structure of the fireproof heat insulation panel which concerns on other embodiment of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a state in which a plurality of fireproof and heat insulating panels (hereinafter abbreviated as panels) 10 are joined in the horizontal direction and an upright partition is constructed between a floor slab 1 and a ceiling slab 2 in a building. . The panel 10 according to one embodiment has a vertically long rectangular shape, and is formed by sandwiching a heat insulating material 30 such as rock wool as a core material between two steel plates 20 as shown in FIG. The dimensions of the panel 10 are, for example, a width of about 900 mm and a thickness of about 100 mm. The height is selected according to the indoor height between the floor slab 1 and the ceiling slab 2, and for example, a height of about 1800 to 8000 mm is used.

  The plurality of panels 10 whose side surfaces are abutted and joined to each other are fixed to the floor slab 1 by the lower mounting bracket 3 and fixed to the ceiling slab 2 by the upper mounting bracket 4 at the upper end. Between the lower end surface of the panel 10 and the floor slab 1 and between the upper end surface and the ceiling slab 2, a heat insulating filler 5 made of ceramic fiber or the like is filled.

  As shown in FIG. 2, one side (the right side in FIG. 2) of the side surfaces on both sides of the panel 10 to be joined together is a first joining end surface 11, and the other side (the left side in FIG. 2) is the first side. 2 are joined end faces 12, and the joined end faces 11 and 12 are abutted to join the panel 10.

  As shown in FIG. 3, outer protrusions 111 extending in the abutting direction (right direction in FIG. 3) to the mating second joint end face 12 are formed on both sides in the width direction of the first joint end face 11. Yes. These outer protrusions 111 are configured such that the end portions of the respective steel plates 20 are once extended in the abutting direction and then bent 180 ° inward, and the most advanced portion 21 is bent 90 ° inward. By forming these outer protrusions 111, large groove portions 112 extending in the longitudinal direction of the side surfaces are formed on the first joining end surface 11.

  Both end portions in the width direction of the end surface of the heat insulating material 30 on the first joining end surface 11 side are pressed by the most distal end portion 21 of the steel plate 20. A small convex strip 113 having a trapezoidal cross section that protrudes in the abutting direction is formed at a central portion of the end face of the heat insulating material 30, that is, a portion corresponding to the bottom surface of the large groove portion 112.

  On the other hand, a large ridge 122 that fits into the large groove 112 of the first joint end surface 11 is formed on the second joint end surface 12. The large ridge 122 extends in the abutting direction (leftward in FIG. 3) to the first joining end surface 11 after the end of each steel plate 20 is slightly bent inward, and the most advanced portion 22 is inward. It is comprised by the part bent 90 degrees and the heat insulating material 30 accommodated between the edge parts of these steel plates 20.

  Both ends in the width direction of the end face of the heat insulating material 30 on the second joining end face 12 side are pressed by the most distal end portion 22 of the steel plate 20. And the small groove part 123 which dents in the opposite direction (right direction in FIG. 3) with respect to the abutting direction is formed in the center part of the end surface of this heat insulating material 30, ie, the part which hits the front-end | tip of the large protruding item | line part 122. The small groove portion 123 is formed in a trapezoidal cross section in which the small convex strip portion 113 of the first joining end surface 11 is fitted.

  As shown in FIG. 3, the panel 10 is configured such that the large convex portion 122 of the second joint end surface 12 is fitted into the large groove portion 112 of the first joint end surface 11, and the small convex strip portion of the first joint end surface 11 is fitted. It joins by fitting the small groove part 123 of the 2nd joining end surface 12 to 113. FIG. In this embodiment, a filler 40 made of ceramic fiber or the like is filled between the joining end faces 11 and 12 in a compressed state, and the joining end faces 11 and 12 are not directly adhered to each other and are fitted via the filling material 40. Is done. In this joined state, the outer protrusion 111, which is the end of the steel plate 20 on the first joining end face 11 side, is fitted into the stepped portion on the outer surface of the large ridge 122 of the second joining end face 12, thereby making the steel plate The outer surface of 20 is flush and the joint is covered by the outer protrusion 111.

  According to the present embodiment, the large groove portion 112 on the first joint end surface 11 side is fitted with the large convex portion 122 on the second joint end surface 12 side, thereby having an overall uneven fitting structure. In addition to this, a small convex strip 113 which is a convex portion is formed on the bottom surface of the large groove portion 112 on the first joining end face 11 side which is a concave side as a whole, while on the other hand, A small groove portion 123 that is a concave portion is formed at the tip of the large convex strip portion 122 on the second joining end face 12 side, and the small groove portion 123 is fitted to the small convex strip portion 113.

  This fitting structure is generally a concave-convex fitting, and is provided with a concave-convex fitting in two stages, in which a concave-convex fitting opposite to the entire concave-convex fitting is provided. Thereby, the heat path between the joining end surfaces 11 and 12 from one side of the panel 10 to the opposite side becomes a more complicated labyrinth and becomes longer. For this reason, the fireproof heat insulation property in the junction part of the panel 10 will be improved significantly. Further, since this can be achieved by processing the joint end face to form a two-step concave / convex fitting structure, the structure is simple and can be realized at low cost.

  FIG. 4 shows another embodiment based on the above embodiment. In this embodiment, the heat insulating plate 50 is sandwiched between the small ridges 113 and the small grooves 123 that are fitted to each other so as to cross the heat path between the small ridges 113 and the small grooves 123. Yes. The small ridge 113 and the small groove 123 are formed with slits 113a and 123a into which the heat insulating plate 50 is inserted, respectively. Further, the filler 40 in this case is divided and provided on both sides of the heat insulating plate 50. In addition, as the heat insulation plate 50, the board | plate material which has heat insulation, such as a gypsum board, is used suitably.

  According to the configuration in which the heat insulating plate 50 is sandwiched in this way, the heat path between the joining end faces 11 and 12 becomes a more complicated labyrinth and becomes longer, so that the fire and heat resistance is further improved. And the thickness of the panel 10 can be made thinner than before by having high fireproof heat insulation in this way. The thinning of the panel 10 has an advantage that the material cost is reduced and the construction is easy.

DESCRIPTION OF SYMBOLS 10 ... Fireproof heat insulation panel 11 ... 1st joining end surface 12 ... 2nd joining end surface 111 ... Outer protrusion 112 ... Large groove part 113 ... Small convex stripe part 122 ... Large convex stripe part 123 ... Small groove part 50 ... Thermal insulation plate

Claims (4)

A first joint end surface formed on one side surface of the side surfaces to be joined to each other and a second side surface formed on the other side surface of a fireproof thermal insulation panel in which a heat insulating material is sandwiched between two steel plates as a core material . It is a joining structure that joins the fire-resistant and heat-insulating panels by matching the joining end faces,
The first joint end surface includes a pair of outer protrusions extending in a butting direction from both sides in the width direction of the joint end surface to the second joint end surface on the mating side, and a large groove formed inside these outer protrusions. And having a small ridge protruding in the abutting direction formed on the bottom surface of the large groove,
The second joint end face includes a large ridge that fits into the large groove of the first joint end face and a small ridge that fits into the small ridge formed at the tip of the large ridge. Having a groove,
The first joining end surface has a leading end portion in which the two steel plates are bent inward extending to the middle of the large groove portion, and the small convex strip portion is constituted by the heat insulating material,
The second joining end face has a leading edge portion in which the two steel plates are bent inward, and extends to the middle of the large convex strip portion, and the small groove portion is constituted by the heat insulating material,
The fireproof and heat insulating panel, wherein the large groove portion and the small groove portion of the second joint end surface are fitted to the large groove portion and the small protrusion portion of the first joint end surface, respectively. Bonding structure.   2. The fireproof heat insulating panel according to claim 1, wherein a heat insulating plate is sandwiched between the small ridges and the small grooves so as to cross between the small ridges and the small grooves. Junction structure.   A fireproof heat insulating panel, wherein the first joining end face according to claim 1 is formed.   A fireproof heat insulating panel, wherein the second joining end face according to claim 1 is formed.

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