JPH07100956B2 - Fire protection floor panel - Google Patents

Description

TECHNICAL FIELD The present invention relates to a fire prevention floor panel disposed on the floor of the second floor or the third floor or higher of a building.

[Prior Art] In general, a plywood 4 is attached to one surface of a frame body 3 that is assembled into a rectangular contour by a core material 3a as a floor panel 2 arranged on the second or third floor of a building 1. Those attached are widely used.

FIG. 4 shows a state in which such a floor panel 2 is laid on the floor of the second floor of the building 1 with the surface of the plywood 4 attached facing upward.

As shown in the drawing, the floor panel 2 is tightly connected to another floor panel 5 by assembling the end portion (core material 3a) on the side in contact with the adjacent floor panel 5 with the fastening bolt 6. . The floor panel 2 has its end portion (core material 3a) on the side facing the outside of the building 1 joined to the body difference 7 arranged so as to be flush with the outer wall surface of the building 1. , The body difference bolt between the body difference 7 and the core material 3a so that the body difference bolt penetrates from the first floor wall panel 9 to the second floor wall panel 10 disposed above the floor panel 2. It is fixed in place by mounting 11.

[Problems to be Solved by the Invention] However, as described above, in the floor panel 2 having the structure in which the plywood 4 is attached to the upper surface of the frame body 3, the fireproof performance is poor and, for example, a room on the first floor. In the case where a fire occurs from a fire, the second floor panel 2 is immediately burned, and the fire spreads to each room on the second floor in an extremely short time.

Therefore, in order to give this floor panel 2 fire protection performance,
As shown in FIG. 4, an inorganic surface material 12 such as a gypsum board is attached to the lower surface of the floor panel 2 in the field.

However, conventionally, such an inorganic face material 12 is usually used.
The laminating work is carried out in the field after the laying work of the second-floor floor panel 2 is completed and the inorganic surface material 12 is lifted by a worker from each room on the first floor.
For this reason, there is a problem that an unreasonable posture is forced on the work of sticking the inorganic surface material 12, or the weight of the inorganic surface material 12 is large, and an unreasonable burden is imposed on the body of the worker. In addition, there was a complaint that the work was troublesome and it was not possible to simplify the site work, save labor, or shorten the construction period.

The present invention has been made in view of the above circumstances, and has a high fireproof performance, and to provide a fireproof floor panel that does not require the work of laminating an inorganic surface material on site. Has an aim.

[Means for Solving the Problem] The present invention relates to a fire prevention floor panel arranged on the second floor, the third floor, or higher floors of a building, which is provided on the upper side of a frame body formed into a rectangular contour by a core material. A solution was to attach a face material to the surface and apply a fireproof coating to the surface exposed on the lower side of the frame.

[Operation] In the fire prevention floor panel of the present invention, since the fire prevention paint is applied to the surface exposed on the lower side of the frame, the fire prevention paint exhibits high fire prevention characteristics by the action of the fire prevention paint. Even if a fire breaks out from each room on the floor, it is possible to prevent or delay the fire from spreading to the second floor. In addition, by applying fireproof paint in this way, on-site,
There is no need to newly attach an inorganic surface material to the lower surface of the frame.

[Examples] Hereinafter, the present invention will be described based on the drawings with reference to Examples.

1 and 2 show the fire protection floor panel of this embodiment as viewed from the upper surface side and the lower surface side, respectively.

Reference numeral 15 in the drawing is a frame body that forms the skeleton of the fire protection floor panel 20. The frame body 15 is formed by assembling a rectangular contour by vertical and horizontal core materials 15a, 15b, 15c, 15d, and a reinforcing core material 15e for reinforcing the frame body 15 is provided in a vertical center portion inside thereof. It is arranged. Further, between the core material 15a and the reinforcing core material 15e and between the core material 15
Between the c and the reinforcing core material 15e, a plurality of blocking materials 15f, 15f ... Which connect the core material 15a and the reinforcing core material 15e, and connect the core material 15c and the reinforcing core material 15e, are arranged. There is.

A face material 16 such as plywood is attached to one surface (upper surface) of the frame body 15.

Further, the surface exposed to the lower side of the frame 15, that is, the inner and lower end surfaces of the vertical and horizontal core members 15a, 15b, 15c, 15d forming the frame 15, the reinforcing core member 15e and the blocking member 15f, Both side surfaces and lower end surfaces of 15f, and exposed portions of the back surface (lower surface) of the plywood (face material) 16 (that is, portions not covered by the end surfaces of the reinforcing core material 15e and the blocking materials 15f, 15f ... 2), a fireproof paint is applied to the entire surface as shown by the diagonal lines in FIG. 2 to form a fireproof coating film 17.
As the fire-preventing paint, an inorganic one such as water glass is preferably used, which is applied to a predetermined thickness according to a usual application method, and a fire-preventing coating film 17 is provided.

Next, a construction method of arranging the fire protection floor panel 20 on the second floor of the building 21 will be described with reference to FIG.

First, after the panel assembly on the first floor is completed, the fire-prevention floor panel 20 having the above-described structure is turned to the upper side with the surface on which the plywood (face material) 16 is pasted, and the end portion of the building 21. Lay it on the second floor by aligning it with the core at the top of the first floor wall panel 22 where the second floor is placed. The end of the building 21 on the side facing the outside (core material 15b) is joined to the body difference 23 arranged so as to be flush with the outer wall surface of the building 21, and the body difference 23 and the core material are joined. The fire-prevention floor panel 20 is fixed by attaching a barrel bolt 25 so as to penetrate from the first floor wall panel 22 to the core 24 between the fire-prevention floor panel 20. Further, the end portion (core material 15d) on the side facing the inside of the building 21 is tightly coupled to each other by assembling it to the end portion (core material) of the floor panel 26 disposed next to it by the fastening bolt 27.

Thus, in the fire protection floor panel 20 of the present embodiment,
As described above, since the fireproof coating film 17 made of fireproof paint such as water glass is formed on the entire surface exposed on the lower side of the frame body 15, high fireproof properties can be obtained by the action of the fireproof coating film 17. It is possible to prevent or delay the fire from spreading to the second floor even if a fire occurs from each room on the first floor. Further, since the plywood (face material) 16 is pasted on the upper surface of the fire prevention floor panel 20 as described above, proof strength against horizontal force applied to the building 21 is imparted, and even if an earthquake or the like occurs. Even in this case, the effect of preventing vibration or destruction of the building 21 can be obtained. Further, as described above, by adopting the structure in which the fireproof coating film 17 is provided in advance, it is not necessary to newly attach an inorganic surface material such as gypsum board to the lower surface of the frame resistant member 15 at the site unlike the conventional case. Therefore, various effects such as simplification of work on site, labor saving, and shortening of construction period can be expected.

It is needless to say that the specific configuration of the fire protection floor panel 20 of the present invention is not limited to the above-described embodiment, and can be appropriately changed within the scope of the present invention.

For example, in the above embodiment, a face material to be attached to the upper surface of the frame body 15
Although an example in which plywood is used as 16 is shown, instead of plywood, for example, a face material obtained by laminating plywood on both sides of a gypsum board and integrating them may be used. In this case, in addition to the action of the fire-preventing coating film 17, the gypsum board serving as the face material also has the advantage that higher fire-preventing performance can be expected.

[Effects of the Invention] As described above, since the fire prevention floor panel of the present invention has the above-mentioned configuration, it has high fire prevention performance and sufficient resistance to horizontal force applied to a building, and prevents fire and It is possible to provide a strong structure that can withstand a disaster such as an earthquake. Further, since the fire-prevention floor panel of the present invention has a fire-preventive paint applied to the surface exposed on the lower side thereof, it is not necessary to attach an inorganic face material such as a gypsum board to the lower surface of the frame at the site, therefore , The work can be simplified and the labor can be saved without adding an excessive burden to the workers on site, and the effect of shortening the construction period can be expected.

[Brief description of drawings]

1 to 3 show one embodiment of the fire protection floor panel of the present invention, and FIGS. 1 and 2 show the fire protection floor panel as viewed from above and below, respectively. A perspective view and FIG. 3 are side sectional views showing a state in which this fire protection floor panel is laid on the second floor, and FIG. 4 shows an example of a state in which a conventional floor panel is laid on the second floor. It is a sectional side view. 15: Frame body, 15a to 15d: Core material, 16: Plywood (face material),
17 …… Fireproof coating, 20 …… Fireproof floor panel, 21 …… Building.

Claims (1)

[Claims] 1. A fire-prevention floor panel disposed on the second floor, third floor, or higher floor of a building, wherein a face material is attached to the upper surface of a frame body formed into a rectangular contour by a core material. The fire protection floor panel is characterized in that the fire protection paint is applied to the surface exposed to the lower side of the frame.