JP2000017754A - Fire resistant partition and gap filling block for fire resistant partition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To resolve a flame from easily entering from a gap arising between a concrete floor member of a building and a partitioning fire resistant board, resulting in spreading fire, in a simple structure. SOLUTION: In a gap arising between a deck board 2 for a concrete floor skeleton 9 and a partitioning fire resistant board 1 in contact therewith, a gap filling block 5 is filled which consists of a steel cover plate 6 and a flexible fire resistant block 7 in a web or felt shaped, mounted integrally therewith.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a partition for partitioning a room in a building to form a plurality of rooms, and more particularly to a fireproof partition.

[0002]

2. Description of the Related Art As shown in FIG. 1, a fireproof partition P is provided between a ceiling surface 9a, which is a lower surface of an upper floor of a building having a plurality of floors, and a floor surface 9b, which is an upper surface of a lower floor. The rooms A and B are formed on the left and right sides of the partition.

In the case of a partition having a fireproof structure, a fireproof partition P as shown in FIGS. 2 to 4 is attached to each floor. That is, the concrete floor skeleton 9 of each level is mainly formed by reinforcing concrete ribs, not shown, on a steel deck plate 2 which is bent at regular intervals in an uneven shape as reinforcing ribs, while reinforcing bars are laid. Is formed.

A ceiling surface 9a, which is the lower surface of the upper floor of the concrete floor frame 9, and a floor surface 9b (FIG. 1), which is the upper surface of the lower floor of the concrete floor frame 9, are respectively formed in U-shape. A steel runner 10 (FIG. 4), which is a long member, is screwed, and a steel stud 11 is screwed between upper and lower steel runners. Glass is attached to the outer surfaces of the steel runner 10 and the stud 11. A gypsum-based partitioning refractory board 1 impregnated with a fiber net or the like is similarly screwed, and a decorative material 12 is appropriately adhered to the outer surface of the refractory board 1 so that the refractory partition P is an upper and lower concrete floor member. 9,
9 and is divided into a plurality of rooms A and B by the fireproof partition P.

As shown in FIG. 3, the steel deck plate 2 projects in detail to the upper edge 1a side of the partitioning refractory board 1 and the projecting portion 2a contacting the upper edge 1a and the concrete layer 3 side. The concave portion 2b which is immersed in the groove is bent at regular intervals in an uneven shape mainly for the purpose of a reinforcing rib.

At this time, as shown in FIGS. 3 and 4, the partitioning refractory board 1 is placed between the upper edge 1a of the partitioning refractory board 1 and the recess 2b of the deck plate 2. Left and right rooms A and B separated by sandwiching
A gap 4 communicating with is generated. Therefore, air can freely flow between the room A on the left side and the room B on the right side as shown by the arrow a in the drawing. Of course, a ceiling plate (not shown) is mounted below the concrete floor member 1 so as to face each of the rooms A and B, and the air flow between the rooms is blocked by the ceiling plate. Since the ceiling itself is not generally a fire-resistant structure, air can easily flow through the gap 4 between the left and right rooms A and B due to the burning of the ceiling panel due to the occurrence of a fire. Causes the flame or smoke from the room A on one side to enter the room B on the other side through the gap 4, and the invading flame or smoke also burns the room B on the other side or causes smoke damage. It has become.

[0007]

As described above, even if the floor member 9 of the building is made of a refractory material of the steel deck plate 2 and the concrete material 3 and the partition attached to the concrete floor member 9 is as described above. The purpose of the present invention is to solve the problem that the flame easily enters and causes the spread of fire due to the gap 4 generated between the two, even if it is formed from the refractory board 1 as described above. It is.

[0008]

In order to solve the above-mentioned problems, in the invention according to the first aspect, if the reference numerals shown in the embodiments are attached and shown, they are mainly formed as reinforcing ribs in a concavo-convex shape. A concrete floor skeleton 9 formed by placing concrete 3 on the deck plate 2 bent at intervals is formed in each layer, and a ceiling surface 9a which is a lower surface side of an upper floor of the concrete floor skeleton 9; In a building in which a plurality of rooms are formed by attaching the partition fireproof board 1 to a floor surface 9b (FIG. 1) which is the upper surface side of the lower floor of the concrete floor skeleton 9, the concrete floor skeleton 9 A steel cover plate 6 and a flexible web-like or felt-like refractory which are integrally attached to a steel cover plate 6 are formed in a gap 4 formed between the deck plate 2 and the partitioning refractory board 1 in contact with the deck plate 2. Block Gap filling block 5 consisting of 7 for is related to the refractory partition which is formed by to be packed.

According to the second aspect of the present invention, a space between the steel cover plate 6 of the gap filling block 5 and the gap 4 into which the steel cover plate 6 is inserted is filled with a fire-resistant sealant or adhesive 13. 2. The fireproof partition according to claim 1, wherein the gap filling block 5 is brought into close contact with the gap 4 by a sealing material or an adhesive material 13.

According to the third aspect of the present invention, the projecting portion 2a projecting toward the upper edge 1a of the refractory board 1 for partitioning and abutting against the upper edge 1a and the recessed portion immersing in the concrete layer 3 side. 2b is mainly formed as a reinforcing rib in a concave and convex shape at regular intervals, and the upper edge 1a of the partitioning refractory board 1 and the deck plate 2
Between the recessed portion 2b and the partitioning refractory board 1
When a gap 4 communicating with each of the right and left rooms separated by a space therebetween occurs, a gap filling block 5 for filling the gap 4
The upper end edge 6b of the cover main body 6a is formed in a shape substantially matching the concave shape of the concave portion 2b of the deck plate 2, and the lower end portion 6c of the cover main body 6a is formed on the side surface 1b of the partitioning fireproof board 1. A gap filling block for a fire-resistant partition comprising a steel cover plate 6 to be in contact with, and a flexible web-like or felt-like fire-resistant block 7 integrally attached to the cover plate 6 and inserted into the gap 4. It is related to.

In the invention according to claim 4, a bendable locking claw 8 is integrally formed on the cover main body 6a so as to protrude therefrom, and the locking claw 8 is made to bite into the fireproof block 7. The fire-resistant block according to claim 1, wherein the fire-resistant block (7) is integrally attached to the steel cover plate (6).

[0012]

FIG. 5 shows an embodiment of the present invention.
First, as shown in FIG. 5, as shown in FIG. 5, the steel cover plate 6 has an end whose upper edge 6b of the cover body 6a substantially matches the concave and convex shape of the recess 2b of the deck plate 2 as described later. The upper edge 6 is formed in an edge shape.
The cover body 6a is formed to have a small diameter between the upper edge 6b and the gap 4 so that a sealing material or an adhesive is filled between the upper edge 6b and the gap 4 as described later. It is preferable to form it as such. The cover body 6
The lower end 6c of the cover body a contacts the side surface 1b of the refractory board 1 as described later.
A part of the upper edge 6b and the lower end 6c is cut out or extended, and a strip-shaped locking claw 8 is integrally and bendably provided at the periphery of the cover body 6a. It is preferable that the tip 8a of the locking claw 8 is formed in a sharp claw shape as shown in the figure.

As shown in FIG. 6, the refractory block 7 is made of glass wool, rock wool, glass fiber,
It is made of a web- or felt-like refractory material having a high flexibility such as rock fiber or inorganic fiber as a main material (eg, Nichias Corporation, Geofiber),
The outer diameter L1 is formed to be the same as or slightly larger than the inner diameter of the gap 4 so that the outer diameter L1 can be inserted slightly stronger into the gap 4 generated between the deck plate 2 and the fireproof board 1 as described later. L2 is 4mm to 5m to give an example
m, the shape of the peripheral edge 7a is substantially in line with the peripheral shape of the cover main body 6a of the steel cover plate 6, but it is not necessary to strictly follow the peripheral edge 7a.
When a is a substantially trapezoidal shape and its peripheral edge 6b has a complicated uneven shape, the shape of the peripheral edge 7a of the refractory block 7 may be substantially trapezoidal as shown in FIG.

As shown in FIGS. 7 and 8, a refractory block 7 is attached to the cover body 6a of the steel cover plate 6.
In the state where it is applied, the locking claw 8 of the cover main body 6a is bent, and its tip 8a is attached to the fireproof block 7 as shown in the figure.
The refractory block 7 is integrally attached to the cover main body 6a, thereby forming the gap filling block 5.

FIGS. 9 and 10 show the gap filling block 5.
In the embodiment of the gap filling block 5 shown in FIGS. 8 and 9, the locking claw 8 of the steel cover plate 6 is cut into the inside from the peripheral edge 7a of the refractory block 7 and In this embodiment, the locking claw 8 cut out from the cover body 6a and protruded from the cover body 6a penetrates the refractory block 7 so that its tip 8a
The steel cover plate 6 and the refractory block 7 are integrally attached so as to be bent along the peripheral edge 7a of the refractory block 7. According to this embodiment, the above both 6, 7 are further improved. It can be integrated firmly.

As shown in FIGS. 11 and 12, the gap filling block 5 is provided with a recess 2b of the deck plate 2 and a refractory board 1 in contact with the projection 2a of the deck plate 2 in the concrete floor frame 9. The cover body 6a of the steel cover plate 6 which is inserted into the gap 4 generated between the upper end edge 1a and, more precisely, forms the gap filling block 5
And the refractory block 7 attached to the main body 6a is inserted into the gap 4, and the lower end 6c of the cover main body 6a is brought into contact with the side surface 1b of the refractory board 1.

As a result, the upper end edge 6b of the cover body 6a of the steel cover plate 6 constituting the gap filling block 5 substantially follows the concave portion 2b of the deck plate 2, and the refractory block 7 is made flexible by its flexibility. The gap 4 is securely closed by the gap filling block 5 by elastically deforming and closely contacting along the inner peripheral surface of the recess 2b.

As shown in FIG. 12, a steel runner 1 is provided.
When the pair of refractory boards 1 and 1 are fixed to each other with the stud 11 interposed therebetween, as shown in the figure, a pair of gap filling blocks 5 are formed at opposite upper edges 1a from opposite directions. 4, the gap 4 can be more securely closed.

Further, before the gap filling block 5 is inserted into the gap 4, a gypsum-based or silicon-based refractory sealing material or the like is provided between the steel cover plate 6 and the outer peripheral surface and the inner peripheral surface of the gap 4, that is, the recess 2b. The gap filling block 5 is fixed to the gap 4 in a sealed state by filling with an adhesive 13 (for example, Tiger Jibutite, trade name of Yoshino Gypsum Co., Ltd.), whereby the gap 4 can be reliably closed. In this way, it is possible to reliably prevent the flame or smoke at the time of the fire from entering the other room through the gap 4.

[0020]

According to the first aspect of the present invention, a refractory partition is provided in a gap formed between a deck plate of a concrete floor frame and a refractory board for partition which abuts the refractory partition. Is packed, it is possible to effectively prevent the flame from entering the other room through the gap and causing a fire spread, and the fire-resistant partition, the steel cover plate and Since it is composed of a flexible web-like or felt-like refractory block integrally attached to the refractory block, the refractory block can be easily inserted into the gap by utilizing the flexibility, and The gap can be reliably closed by the elastic restoring property. In addition, the shape of the fireproof block is maintained by the steel cover plate, and the fireproof block can be inserted into the gap with the steel cover plate. it can.

According to the second aspect of the present invention, the gap between the steel cover plate of the gap filling block and the gap into which the gap is inserted is filled with a fire-resistant sealing material or adhesive. The gap-filling block is tightly sealed in the gap by the material, so that the gap-filling block is fixed to the gap in a sealed state, so that the gap can be reliably closed. Can be reliably prevented from entering the room.

According to the third aspect of the present invention, in the gap filling block, the upper end edge of the cover main body is formed in a shape substantially matching the concave shape of the concave portion of the deck plate, and the lower end portion of the cover main body is partitioned. A steel cover plate abutting against the side surface of the refractory board for use, and a flexible web-like or felt-like refractory block integrally attached to the cover plate and inserted into the gap. Is securely closed by the refractory block and the cover body of the steel cover plate, and the lower end of the cover body comes into contact with the side surface of the partitioning refractory board. The amount can be regulated to be constant, and the inserted state of the refractory block can be maintained at an accurate position. In addition, since the refractory web-like or felt-like refractory blocks, which are easily deformed, are integrally attached to the steel cover plate, they can be accurately attached without causing collapse during transportation, management, or installation work. .

According to the fourth aspect of the present invention, a bendable locking claw is integrally formed on the cover body, and the locking claw is made to bite into the refractory block. Since the refractory block is integrally attached, both can be surely formed integrally without using an adhesive or the like.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a partition provided between a ceiling surface and a floor surface.

FIG. 2 is a perspective view showing a mounting state of a deck plate and a fire-resistant board constituting a concrete floor frame.

FIG. 3 is a vertical sectional front view of the same.

FIG. 4 is a sectional view taken along line IV-IV in FIG. 3;

FIG. 5 is a perspective view of a steel cover plate showing one embodiment of a main part of the present invention.

FIG. 6 is a perspective view of a refractory block showing an embodiment of a main part of the present invention.

FIG. 7 is a perspective view showing a gap filling block according to one embodiment of the present invention.

FIG. 8 is a side view of the same.

FIG. 9 is a perspective view of a steel cover plate according to another embodiment of the present invention.

FIG. 10 is a perspective view showing a gap filling block using the steel cover plate of the embodiment shown in FIG. 9;

FIG. 11 is a front view showing a fire-resistant partition of one embodiment of the present invention.

12 is a sectional view taken along line XII-XII in FIG.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Fireproof board for partition 1 1a Upper edge of fireproof board 1b Side face of fireproof board 2 Deck plate 2a Projection 2b Recess 3 Concrete layer 4 Gap 5 Gap block 6 Steel cover plate 6a Cover body 6b Upper edge of cover body 6c Lower end of cover body 7 Fireproof block 8 Locking claw 8a Tip of locking claw 9 Concrete floor frame 9a Ceiling surface 9b Floor surface P Fireproof partition A Room B Room

Claims (4)

[Claims] 1. A concrete floor frame formed by placing concrete on a deck plate, which is mainly formed as a reinforcing rib at regular intervals in an uneven shape, is formed on each level, and the upper floor of the concrete floor frame is formed. In a building in which a plurality of rooms are formed by attaching a partitioning fireproof board between a ceiling surface on the lower surface side of the floor and a floor surface on the upper floor side of the lower floor of the concrete floor structure, the concrete floor structure The steel cover plate and the flexible web-like or felt-like fire-resistant block integrally attached to the steel cover plate are inserted into the gap created between the deck plate and the partitioning refractory board abutting on the deck plate. A fire-resistant partition in which a gap-filling block is packed. 2. A gap between the steel cover plate of the gap-filling block and the gap into which the gap-filling block is inserted is filled with a fire-resistant sealant or an adhesive, and the gap-filling block adheres to the gap by the sealant or the adhesive. Claim 1.
Fireproof partition as described. 3. A protruding portion projecting toward the upper edge of the partitioning refractory board and abutting against the upper edge, and a concave portion immersing into the concrete layer side are bent at regular intervals in an uneven manner as reinforcing ribs. In the deck plate, when a gap occurs between the upper edge of the partition fire-resistant board and the recessed portion of the deck plate, the gap communicating with each of the left and right rooms separated by sandwiching the partition fire-resistant board, A gap filling block for filling the gap, wherein an upper end edge of the cover main body is formed in a shape substantially matching the concave shape of the concave portion of the deck plate, and a lower end portion of the cover main body contacts a side surface of the partitioning fireproof board. A fire-resistant partition consisting of a steel cover plate to be in contact with and a flexible web-like or felt-like fire-resistant block integrally attached to the cover plate and inserted into the gap. Gap filling block. 4. A bendable locking claw is integrally formed on the cover body so as to protrude therefrom, and the locking claw is cut into the fireproof block so that the fireproof block is integrally attached to the steel cover plate. 4. The gap filling block of a fireproof partition according to claim 3, wherein