JP5721383B2 - Fireproof panel connection structure - Google Patents

Description

  The present invention relates to a technical field of a connection structure of a fireproof panel used for a fireproof partition wall or the like.

In general, fireproof partition walls are widely used to form fireproof compartments, smoke exhaust compartments, evacuation compartments, etc.In this case, it is possible to construct a fireproof partition wall by connecting a plurality of fireproof panels. is there. As a fire-resistant panel used for such a fire-resistant partition wall, for example, a fire-resistant panel in which a fire-resistant and heat-insulating core material is filled between two metal surface plates is known (for example, Patent Literature 1 and Patent Literature 1). 2).
By the way, when forming a fireproof partition wall using the fireproof panel which filled the heat insulating core material between the said 2 metal surface plates, the fireproof performance of the connection part of fireproof panels becomes a problem. In other words, under high temperatures such as a fire, the adhesion between the surface plate and the core material is peeled off due to heat and the surface plate is deformed. As a result, a gap is formed in the connecting portion between the fireproof panels, and flame and heat leak from the gap. There is a risk of fire spreading.
Therefore, in the thing of the said patent document 1, a fitting convex part and a fitting recessed part are formed in the both ends of a fireproof panel, and an inorganic material is filled into these fitting convex part and a fitting recessed part, and a nonflammable part is comprised. doing. Moreover, in the thing of patent document 2, the connection of the surface plates of an adjacent fireproof panel is carried out, the fitting of a fitting recessed part and a fitting protrusion, and the fitting of an insertion protrusion and an insertion receiving part. By using a heavy structure, the connection between the surface plates is maintained even in the event of a fire.

Japanese Patent Laid-Open No. 6-8372 JP 2008-121213 A

  However, the thing of the said patent document 1 will be a fitting convex part, if the metal surface board which forms the outer shell of a fitting convex part and a fitting concave part will deform | transform by heat in high temperature at the time of a fire etc. There is a possibility that a gap is generated in the connecting portion of the panels without being able to maintain the fitting with the fitting recess. Further, even if the connection between the surface plates of the fireproof panels is made double as in Patent Document 2, the thermal expansion deformation of the metal surface plates is large at high temperatures (for example, 500 degrees or more), and There is a problem that the possibility of disconnection cannot be eliminated. Furthermore, in the thing of patent document 2, although an edge board part and a joint part are stuck on the edge of the core material of a fireproof panel, a core material, an edge board part, and a joint part are stuck at high temperature. There is a possibility that the adhesive ability of the adhesive material to be reduced may cause a gap between the core material, the edge board portion, and the joint portion. Thus, both of Patent Documents 1 and 2 have a problem that there is a possibility that a gap may be formed in the connecting portion, and it is not possible to reliably prevent a flame or heat from leaking from the heating side to the non-heating side. Here, there is a problem to be solved by the present invention.

The present invention was created with the object of solving these problems in view of the above circumstances, and the invention of claim 1 is a fireproof and heat-insulating core between two metal surface plates. When connecting refractory panels filled with a material, a concavity parallel to the surface plate is formed on the connecting side end face of the core material of the adjacent refractory panels, and both refractory panels adjacent to the concavity are formed. The calcium silicate plate is fitted so as to be parallel to the surface plate over the core material, and a laminated portion is provided to overlap and laminate the surface plates of the adjacent fireproof panels in the panel thickness direction. In addition, the two surface plates are bent along the connecting side end face in a state that does not reach the groove, while the calcium silicate plate is fitted in a state of directly contacting the groove, The connection side end faces of adjacent fireproof panels are separated from each other. The surface plate is bent toward the concave groove side along the end face on the connection side, and is directed toward the connection end face of the adjacent fireproof panel before reaching the concave groove. Protruding sides are formed by bending, and the protruding sides of adjacent refractory panels become laminated portions laminated in the panel thickness direction with a gap from the calcium silicate plate, and the laminated portions are It is the connection part structure of the fireproof panel characterized by being fixed using the screw | thread of the length which does not reach a calcium-acid board .
In the invention of claim 2 , ceramic fibers are interposed between the connection side end faces of the cores of adjacent fireproof panels so as to reach the surface plate from the calcium silicate plate in a state orthogonal to the calcium silicate plate. The connection structure for a fireproof panel according to claim 1.

According to the invention of claim 1, even when the surface plate is peeled off from the core material due to heat or thermally expanded under high temperature such as a fire, the connection portion of the fireproof panels is not Thus the calcium silicate plate disposed to span the core material, passing path of the flame and heat from the heating side to the non-heating side is to be reliably blocked. Moreover, since the calcium silicate plate is arranged so as to extend over the core material of both adjacent fireproof panels by being fitted into a concave groove formed on the connection side end surface of the core material, Even under high heat, there is no fear that the calcium silicate plate will come off the core material or that there will be a gap between the calcium silicate plate and the core material. It can be set as a connection part structure.

It is a whole front view of a fireproof partition wall. It is XX sectional drawing of FIG. It is YY sectional drawing of FIG. It is a top view of the fireproof panel of a reference example . It is a partially cutaway perspective view of a fireproof partition wall. It is a graph which shows the temperature data of a 1 hour fireproof test. (A), (B), the first aspect of the present invention, showing the engagement example of the surface plates are in the connecting portion of the refractory panels showing the second embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIGS. 3 to 6 are reference examples, and FIG. 7 shows the first and second embodiments of the present invention. In the figure, reference numeral 1 denotes a fireproof partition wall. The wall surface is formed by juxtaposing a plurality of fireproof panels 2 in the width direction of the fireproof panel 2, and the plurality of fireproof panels 2 includes an upper rail 4 disposed on the ceiling portion 3, It is attached and supported by a lower rail 6 disposed on the floor portion 5 and a wall rail 8 disposed on the wall surface 7.

  The upper rail 4 and the lower rail 6 are divided into one half side supporting the fireproof panel 2 from one partition side partitioned by the fireproof partition wall 1 and the other half side supporting the fireproof panel 2 from the other partition side. It is divided. The upper and lower rails 4 and 6 are fixed to the ceiling 3 and the floor 5 by concrete screws 9, and the upper and lower ends of the fireproof panel 2 are fixed by screws 10. It has come to be. In addition, between the upper end surface of the fireproof panel 2 and the ceiling part 3, and between the lower end surface of the fireproof panel 2 and the floor part 5, the fireproof heat insulating material 11 formed from a ceramic fiber etc. is filled.

  The wall rail 8 is for mounting and supporting the fireproof panels 2 arranged on both ends of the fireproof panels 2 arranged side by side. The wall rail 8 is connected to the wall surface 7 via the wall rail mounting bracket 12. The wall rail 8 and the wall rail mounting bracket 12 are also configured to be fixed to the fire-resistant panel from the one side partitioned by the fire-resistant partition wall 1, similarly to the upper rail 4 and the lower rail 6. 2 and the other half side supporting the fireproof panel 2 from the other partition side. The wall rail 8 is fixed to the wall rail mounting bracket 12 fixed to the wall surface 7 by the concrete screw 9 by the screw 13, and the wall-side end of the fireproof panel 2 is fixed by the screw 10. It has become. In addition, between the wall surface side end surface of the fireproof panel 2 and the wall surface 7, a fireproof heat insulating material 11 formed of ceramic fiber or the like is filled.

  On the other hand, the fire-resistant panel 2 is formed by filling a fire-resistant and heat-insulating core material 15 between two parallel metal surface plates 14, and in this embodiment, the core material 15 Rock wool is used. The surface plate 14 and the core material 15 are bonded to each other by an adhesive 16 shown by a dotted line in FIGS.

Reference numeral 17 denotes a connecting portion between the fireproof panels 2. In the connecting portion 17, the surface plates 14 of the adjacent fireproof panels 2 are configured to engage in a male-female manner. That is, the two surface plates 14 at one of the connection side end portions (the right end portion in FIGS. 3 and 4) of the fireproof panel 2 are adjacent to the connection side end surface 15 a of the core 15 of the fireproof panel 2. 2 are folded back along I return to the connecting-side end face 15a of the core member 15 from linearly extended toward the, thereby, the protruding portion 14a protruding toward the fire panel 2 adjacent is formed Yes. Moreover, the other connection side edge part (left side edge part in FIGS. 3 and 4) of the fireproof panel 2 is designed so that the dimension in the thickness direction of the fireproof panel 2 is slightly narrower than the other parts. At the other connection side end, the two surface plates 14 are formed in a recess 14b that is recessed inward in the thickness direction relative to the other portions. And the protrusion 14a of the fireproof panel 2 adjacent to the outer side in the thickness direction of the recess 14b is engaged, so that the surface plates 14 of the adjacent fireproof panel 2 are engaged in male and female shapes , Thereby, the laminated part which overlaps and laminates | stacks the surface plates 14 of the adjacent fireproof panel 2 on the panel thickness direction is provided .

Further, in the connecting portion 17, the connection side end faces 15 a of the core materials 15 of the adjacent fireproof panels 2 face each other in a state of being orthogonal to the surface plate 14, and the connection side end faces of the core material 15. In 15a, a concave groove 18 parallel to the surface plate 14 is formed in a state of being located in the center portion in the thickness direction of the fireproof panel 2 and extending over the entire length in the vertical direction of the fireproof panel 2. A calcium silicate plate 19 is fitted in the concave groove 18 so as to extend parallel to the surface plate 14 over the core material 15 of both adjacent fireproof panels 2. As is well known, the calcium silicate plate is a fire-resistant heat insulating material excellent in fire resistance, heat insulation, strength, and safety . As is apparent from FIGS. It is bent so as to be along the connection side end face 15a in a state that does not reach the end, and the calcium silicate plate 19 is fitted in a state of directly contacting the concave groove 18 .

  Furthermore, between the connection side end surfaces 15a of the cores 15 of the adjacent fireproof panels 2, the ceramic fiber 20 extends from the calcium silicate plate 19 to both surface plates 14 in a state orthogonal to the calcium silicate plate 19. Is intervening. As is well known, ceramic fiber is a fire-resistant heat insulating material that has excellent fire resistance and heat insulating properties and also has compressibility.

  In the present embodiment configured as described, the wall surface of the fireproof partition wall 1 is formed by connecting fireproof panels 2 filled with a fireproof and heat insulating core 15 between two metal surface plates 14. However, in this structure, a concave groove 18 parallel to the surface plate 14 is formed on the connection side end surface 15a of the core member 15 of the fireproof panel 2, and both the adjacent grooves 18 are adjacent to the concave groove 18. A calcium silicate plate 19 is fitted over the core material 15 of the fireproof panel 2 so as to be parallel to the surface plate 14. Further, ceramic fibers 20 are interposed between the connection side end faces 15a of the cores 15 of the adjacent fireproof panels 2 so as to reach the surface plate 14 from the calcium silicate plate 19 in a state orthogonal to the calcium silicate plate 19. It is disguised.

  As a result, even if the surface plate 14 is peeled off from the core material 15 due to heat or thermally expanded and deformed under a high temperature such as a fire, the connecting portions 17 between the fire resistant panels 2 are connected to the cores of both adjacent fire resistant panels 2. Flame and heat passage paths from the heated side surface to the non-heated side surface by the calcium silicate plate 19 arranged so as to extend over the material 15 and the ceramic fiber 20 interposed between the connection side end surfaces 15a of the core material 15 Is surely cut off. In addition, the calcium silicate plate 19 is fitted into the concave groove 18 formed in the connection side end face 15a of the core material 15 of the adjacent fireproof panel 2, so that the core material 15 of both adjacent fireproof panels 2. Therefore, even under high heat, the calcium silicate plate 19 is detached from the core material 15 or a gap is generated between the calcium silicate plate 19 and the core material 15. Therefore, it is possible to reliably prevent the flame and heat from leaking from the connecting portion 17 between the fireproof panels 2. Furthermore, this also has the advantage that the connection between the refractory panels 2 is strengthened by the calcium silicate plate 19 arranged so as to extend over the cores 15 of both adjacent refractory panels 2.

Furthermore, when the fire resistance performance of the fireproof partition wall 1 in which the present invention was implemented was subjected to an ISO 834 compliant fire resistance test for one hour, as shown in FIG. As a result, the effectiveness of the present invention could be confirmed. In the experiment, the core 15 is 80 mm thick rock wool (density 150 kg / m ³ ), and the calcium silicate plate 19 is 12 mm thick. Moreover, in FIG. 6, although the data of the measurement temperature of three places of 1 to 3 each were shown about the inside of a furnace of a fireproof test apparatus, and the non-heating side, temperature of many places was measured in the actual test, It was 200 degrees C or less in all the measurement locations.

In the present invention, the first and second embodiments shown in FIGS. 7 (A) and 7 (B) are the first and second embodiments. When engaging, as shown in the drawing, projecting sides 14c or 14d are formed at the connecting side end portions of the surface plates 14 of both adjacent fireproof panels 2, and these projecting sides 14c or 14d are overlapped with each other and stopped by screws 21 or 22. It can also be configured to be worn. Further, in these devices, a joiner 23 or 24 may be attached to the fastening portion of the screw 21 or 22. As is apparent from FIG. 7, these protrusions 14c or 14d constituting the laminated portion are laminated in the panel thickness direction with a gap from the calcium silicate plate 19, and the silicate It is fixed by a screw 22 having a length that does not reach the calcium plate 19.

  INDUSTRIAL APPLICATION When connecting the fireproof panels used for a fireproof partition wall etc., this invention can be utilized as a connection part structure of the fireproof panel excellent in fireproof performance.

2 Fireproof Panel 14 Surface Plate 15 Core Material 15a Connection Side End Face 18 Groove 19 Calcium Silicate Plate 20 Ceramic Fiber

Claims (2)

When connecting fireproof panels made by filling a fireproof and heat-insulating core material between two metal surface plates, the groove on the connection side of the core material of the adjacent fireproof panel is parallel to the surface plate. The calcium silicate plate is fitted into the concave groove so as to extend over the core material of both adjacent refractory panels and to be parallel to the surface plate , while between the surface plates of the adjacent refractory panels. A laminated part is provided to overlap in the panel thickness direction, and the two surface plates are bent along the connecting side end surface so as not to reach the groove, and the calcium silicate plate is While it is fitted in a state of directly contacting the groove, the connection side end faces of adjacent fireproof panels are separated from each other and there is a gap between the opposing faces, and the surface plate is in a state along the connection side end face What was bent toward the ditch is the one before the ditch Projected sides are formed by bending toward the connection end face of adjacent fireproof panels on the floor, and the adjacent fireproof panels are stacked in the panel thickness direction with a gap between the calcium silicate plates. The fire-resistant panel connecting part structure is characterized in that the laminated part is fixed using a screw having a length that does not reach the calcium silicate plate . Between connecting-side end face of the core material of an adjacent refractory panels, according to claim 1, characterized in that it is interposed a ceramic fiber to reach the laminate part from the calcium silicate board in a state perpendicular to the calcium silicate board Connection structure of the fireproof panel described.

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