JPH0826595B2 - Fire floor structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a fireproof floor structure in which a fireproof floor panel is laid on the floor on 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 the floor panel 2 of the building 1 in such a manner that the surface to which the plywood 4 is attached faces upward.
It shows a state of being laid on the floor of the floor.

The floor panel 2 has an adjacent floor panel 5 as shown in the figure.
The end portion (core material 3a) on the side that contacts with is nailed or assembled by a binding bolt 6 so as to be tightly connected to another floor panel 5. 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, the plywood 4 is attached to the upper surface of the frame body 3.
In the floor panel 2 having a structure in which is attached, if the fireproof performance is poor and, for example, a fire broke out from the room on the first floor, immediately burn the second floor panel 2,
There is an inconvenience that fire spreads to each room on the second floor in an extremely short time.

Therefore, in order to provide the floor panel 2 with fire protection performance, as shown in FIG.
An inorganic surface material 12 such as a gypsum board is attached to the lower surface of the.

However, conventionally, such an inorganic surface material is usually used.
The sticking work 12 is carried out in the field after the laying work of the floor panel 2 on the second floor is completed and the inorganic surface material 12 is lifted by a worker's hand 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,
It is an object of the present invention to provide a fireproof floor structure having high fireproof performance and capable of eliminating the work of attaching an inorganic surface material on site.

[Means for Solving the Problem] The present invention is a fireproof floor structure in which a plurality of fireproof floor panels are placed on the upper end surface of a wall panel standing upstairs in a building of two or more stories. In the above-mentioned fire prevention floor panel, the floor surface material integrated by bonding the plywood to the front and back surfaces of the inorganic surface material is attached to the upper surface of the frame body which is assembled into a rectangular contour by the core material. The solution is that the floor facings are placed in a state of being abutted against each other.

[Operation] In the fireproof floor panel used in the fireproof floor structure of the present invention, the floor surface material to be attached to the upper surface of the frame body, plywood is attached to the front and back surfaces of the inorganic surface material Therefore, the inorganic surface material exhibits a high fireproof property, and even if a fire occurs in each room on the first floor, it is possible to prevent or delay the flame from spreading to the second floor. Further, since the inorganic surface material is sandwiched between the plywoods in advance in this manner, it is not necessary to newly attach the inorganic surface material to the lower surface of the frame body on site.

[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 used in 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. In addition, between the core material 15a and the reinforcing core material 15e and the core material
Between the core material 15a and the reinforcing core material 15e, there are arranged 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, respectively. There is.

Further, a floor surface material 16 is attached to one surface (upper surface) of the frame body 15. The floor surface material 16 is an inorganic surface material 17 such as gypsum board, ALC or FC board as shown in FIG.
The front and back surfaces of plywood 18, 18 are laminated and integrated.

Next, the fire prevention floor panel 20 thus constructed is attached to the 2 of the building 21.
The fireproof floor structure laid on the floor will be described with reference to FIG.

First, after the installation of the wall panel 22 on the first floor is completed, the fire-prevention floor panel 20 having the above-mentioned configuration is used, with its end being the core of the upper end surface of the first-floor wall panel 22 where the second floor of the building 21 rests Lay it on the second floor so that it fits together. 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 fireproof 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 fireproof panel 20 and 15a. 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 arranged next to it by the fastening bolt 27.

Thus, in the fireproof floor structure of the present embodiment, since the plywood 18, 18, the floor surface material 16 is attached to the front and back surfaces of the inorganic surface material 17, as described above, is attached, Due to the action of the inorganic surface material 17, high fireproof properties are exhibited, and even if a fire occurs in each room on the first floor, the fire can be prevented or delayed from spreading to the second floor.
Further, as described above, the fire prevention floor panel 20 is placed on the upper end surface of the wall panel 22 erected at the lower floor in a state in which the floor panel 16 is abutted against each other. Even if an earthquake or the like occurs, it is possible to obtain the effect of preventing the building 21 from vibrating or preventing the building 21 from being damaged even if an earthquake or the like occurs. In addition, as described above, the inorganic face material 17 is previously attached to the plywood 1
With the configuration sandwiched between 8 and 18, there is no need to newly attach an inorganic surface material such as gypsum board to the lower surface of the frame body 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 concrete structure of the fireproof floor structure of the present invention is not limited to the above-mentioned embodiment, and can be appropriately changed within the scope of the present invention.

[Effects of the Invention] As described above, since the fireproof floor structure of the present invention has the above-mentioned configuration, it has high fireproof performance and sufficient resistance to horizontal force applied to the building, and is resistant to fires and earthquakes. It is possible to provide strong structures that can withstand such disasters. Further, the fire-prevention floor panel used in the present invention uses, as a floor surface material, a structure in which an inorganic surface material is sandwiched between plywood in advance, so that a gypsum is newly added to the lower surface of the frame at the site. Since it is not necessary to attach an inorganic surface material such as a board, the work can be simplified and the labor can be saved without imposing an excessive burden on the worker at the site, and the effect of shortening the construction period can be expected.

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 to 3 show an example of a fire protection floor panel used in the present invention, and FIGS. 1 and 2 show the fire protection floor panel above and below, respectively. FIG. 3 is a perspective view showing a state viewed from the side, FIG. 3 is a side sectional view showing an embodiment of a fireproof floor structure in which the fireproof floor panel is laid on the second floor, and FIG. 4 is a conventional floor panel. It is a side sectional view showing an example of the state where it was laid on the second floor. 15 …… Frame body, 15a to 15d …… Core material, 16 …… Floor surface material, 17…
… Inorganic surface material, 18 …… plywood, 20 …… Fireproof floor panel, 21…
…building.

Claims (1)

[Claims] 1. A fireproof floor structure in which a plurality of fireproof floor panels are placed on an upper end surface of a wall panel erected at a lower floor of a building having two or more floors, the fireproof floor panel. Is a top surface of a frame body assembled into a rectangular contour by a core material, and a floor surface material integrated by laminating plywood on the front and back surfaces of an inorganic surface material is affixed thereto. A fire-prevention floor structure in which materials are placed in a state of being butted against each other.