JP2002146949A - Fire resistive partition wall and fire compartment using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fire resistive partition wall which sufficiently ensures visibility in normal times, and exhibits a fire spread preventing function in case of a fire, and to provide a fire compartment using the fire resistive partition wall. SOLUTION: The fire resistive partition wall 20 is constructed by arranging a plurality of small fire resistive partition walls 21 in an openable manner. The fire resistive partition wall 10 thus constructed is employed as a part of a wall 11 of the fire compartment which partitions fire escape stairs 10, for instance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blind type fire-resistant partition wall comprising a plurality of small fire-resistant partition walls which can be opened and closed, and a fire protection partition system using the same.
In particular, it is a technique that can ensure visibility, ventilation, etc. through a fire-resistant partition wall.

[0002]

2. Description of the Related Art According to the Building Standard Law and the Fire Service Law, it is obligatory to provide a fire protection section for each space having a predetermined area in a building in order to prevent a fire from spreading in a building.

[0003] By providing such a fire prevention compartment,
Even if a fire should occur, the fire can be confined to a part of the fire prevention compartment and localized. By limiting the fire to a local one, it is possible to prevent the spread of the fire to the entire building, make it easier to extinguish the fire, or to evacuate residents safely by isolating the evacuation route from the fire occurrence part. it can.

[0004] The fireproof partition is constituted by partitioning the periphery with a fireproof partition wall composed of a fireproof partition wall and the like, and such a fireproof partition wall is generally made of concrete.

[0005]

In a fire compartment using a concrete fire-resistant partition wall, it is naturally impossible to see through the fire compartment wall, and in a sense it is constructed as a very closed space. Becomes Of course, it is possible to provide a window on the fire-prevention section wall. However, such a window must be a fire-resistant window, and it is required to prevent the spread of fire from the window in the event of a fire.

As described above, it is technically possible to provide a fireproof window in order to eliminate the closedness of the fire protection compartment.
The cost is extremely high, and a fire prevention section without a window is eventually adopted as a general configuration.

Further, in a configuration using a concrete fire-resistant partition, it is impossible to secure air permeability through the fire-resistant partition in both spaces separated from each other via the fire-resistant partition. Therefore, it is necessary to adjust the air individually, and some air conditioning equipment such as a dedicated ventilation fan may be provided in each fire protection compartment.

An object of the present invention is to provide a fire-resistant partition wall,
It is an object of the present invention to ensure a view that allows the other side of the wall to be seen, and to ensure air permeability with the other side of the wall.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a fire-prevention compartment system capable of securing a view that allows the other side of a fire-prevention compartment wall to be seen, and ensuring ventilation of the other side of the wall.

[0010]

According to the present invention, a plurality of small fire-resistant partition walls are provided so as to be openable and closable, and the plurality of small fire-resistant partition walls are connected to each other in a closed state. It is characterized by forming a partition wall. When the plurality of small fire-resistant partition walls are in a closed state, the adjacent small fire-resistant partition walls are connected to each other in an engaged state. The small fire-resistant partition wall is formed in a substantially rectangular shape, and a crank portion is provided at an end along the longitudinal direction, and the crank portions at the ends of the adjacent small fire-resistant partition walls are engaged with each other to be engaged and connected. It is characterized by the following.

The fire protection system according to the present invention is characterized in that the space on the other side is seen through the fire protection partition wall, and that ventilation with the space on the other side is ensured. A fire-resistant partition wall having any one of the above configurations is used as the fire-prevention partition wall.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view showing a configuration in which the fire-resistant partition wall of the present invention is used in a fire-prevention compartment system for an evacuation staircase. FIG. 2 is a partial perspective view showing a state where a plurality of small fire-resistant partition walls constituting the fire-resistant partition wall of the present invention are opened. FIG. 3A is a partially enlarged view showing a state in which a plurality of small fire-resistant partition walls are closed, and FIG. 3B is a partially enlarged view of the plurality of small fire-resistant partition walls shown in FIG. It is explanatory drawing which shows the rotation condition at the time of opening and closing.

FIG. 1 shows a case where the fire-resistant partition wall 20 of the present invention is used in a fire protection system of an evacuation staircase 10. The evacuation stairs 10 are separated from the indoor 12 by a fire prevention partition wall 11. The fire protection partition wall 11 is provided with a fire door 13 so that the side of the evacuation stairs 10 and the side of the room 12 can pass between each other. Fireproof glass 14 is used for the fire door 13,
It is configured such that lighting on the side of the staircase 15 is ensured.

In addition, in the staircase room 15 side, when a person having difficulty in walking such as a wheelchair user uses the evacuation stairs 10 in the event of a fire, it should be prevented from being caught in the flow of many evacuees and falling. , A shelter 16 is provided. Fireproof glass 17 is provided on the fire prevention partition wall 11 constituting the shelter 16, so that the situation inside the room can be checked, or the rescue team who has entered the room can check whether there is an evacuee in the shelter 16. It has become.

The fire-resistant partition wall 20 of the present invention is a fire-resistant partition wall 11 for partitioning the evacuation stairs 10 and the room 12 as described above.
Used as part of As shown in FIG. 1, a fire-resistant partition wall 11 a (11) provided with a fire door 13 among fire-resistant partition walls 11 that partition the evacuation stairs 10 side and the indoor 12 side.
And a fire-resistant partition wall 11b (1
1), a fire-resistant partition wall 20 of the present invention is provided.

As shown in FIG. 1, the fire-resistant partition 20 is
A plurality of small fire-resistant partition walls 21 are provided inside the frame member 22 so as to be openable and closable. Fireproof partition wall 20
Is installed vertically from the ceiling (not shown) side to the floor like the other fire-resistant partition walls 11a and 11b. The upper end of the frame member 22 of the fire-resistant partition wall 20 is fixed to the ceiling, and the lower end is fixed to the floor.

As shown partially in FIG. 2, a plurality of small fire-resistant partition walls 21 are provided inside the frame member 22 in parallel with each other in the vertical direction. Small fire-resistant partition 21
Are formed in an elongated rectangular plate shape. The length of the small fire-resistant partition wall 21 may be set to an appropriate length. If such a length is set, for example, to a length corresponding to the width of a conventional fireproof shutter, the fireproof partition used in the present invention is used instead of the fireproof shutter used in the conventional fireproof compartment. You can also.

As shown in FIG. 3, each of the small refractory partition walls 21 has a crank-shaped cross section. That is, the upper and lower opposed longitudinal end surfaces 21a and 21b of the small fire-resistant partition wall 21 are projected at the diagonal positions thereof.
a and 23b are provided symmetrically, and a short section in the longitudinal direction of the small refractory partition wall 21 is bent into a substantially crank shape to form a crank portion.

As shown in FIG. 3A, a rotation center 24 is provided at the center on both end surfaces of the small fire-resistant partition wall 21 having the above-described structure, and the rotation center 24 is rotatable on the left and right portions of the frame member 22. Attached to. Small fire-resistant partition 21
Can be rotated around its rotation center 24 as shown in FIG. The rotation of the small fire-resistant partition wall 21 may be automatically and quickly performed by rotation of the motor.

As a rotating mechanism of the plurality of small fire-resistant partition walls 21, a plurality of small fire-resistant partition walls 21 are connected by wires (not shown), and the wires are wound up or down by a motor. A plurality of small fireproof partition walls 21 may be opened and closed. However, the rotation mechanism may have a configuration other than the motor rotation mechanism,
For example, it may be rotated manually.

As shown in FIG. 3B, by rotating the individual small refractory partition walls 21 in synchronization with the direction of the rotating arrow so that the plate surface is located in the horizontal direction, the refractory partition walls 20 can be removed. A view is secured between the small fire-resistant partition walls 21. At the same time, air permeability is also ensured.

When the small fire-resistant partition wall 21 is rotated in the direction opposite to the direction of the rotation arrow shown in FIG. 3 (B), the longitudinal end surfaces 21a of the small fire-resistant partition wall 21 vertically adjacent to each other can be obtained. The crank portions including the protrusions 23a and 23b of the 21b are engaged with each other, and are closed as shown in FIG.

As described above, since the protruding portions 23a and 23b are engaged with each other to be engaged with each other and configured to be in the closed state, the fire is transferred from one space separated by the fire-resistant partition wall 20 to the other space. Flame at the time, high-temperature air, and smoke do not flow, and the spread of fire can be effectively prevented. In particular, by forming it in the shape of a crank, the small fire-resistant partition wall 21 is formed.
By increasing the length of the joints and bending the joints, it is possible to more strongly prevent flames, high-temperature air, smoke, and the like from passing through the joints.

The frame member 22 and the small fire-resistant partition wall 21 constituting the fire-resistant partition wall 20 having the above structure may be formed of a material having fire resistance such as steel, aluminum, stainless steel, or the like. Further, the small fire-resistant partition wall 21 may be configured by using heat-shielding fire-resistant glass.

A concrete fire-resistant partition wall may be formed, and the structure of the fire-resistant partition wall 20 may be fitted into an opening provided on the concrete plate surface of the concrete fire-resistant partition wall. As shown in FIG. 4 (A), by forming a fireproof coating 25a such as a fireproof paint or a lightweight concrete having heat insulation and fire resistance on the surface of a shield plate 25 formed of steel or stainless steel. A small fire-resistant partition wall 21 may be formed.

As the refractory coating 25a, a heat-sensitive foam that expands by expanding at a predetermined temperature may be used. By foaming at a high temperature at the time of fire, the gap between adjacent small fire-resistant partition walls 21 can be effectively closed. As the heat-sensitive foaming material, a conventionally used material such as sodium silicate or carbon graphite may be used.

Further, as shown in FIG. 4 (A), the heat-sensitive foam material 2 is applied only to the upper end side portions of the protrusions 23a and 23b.
6 may be provided. With this configuration, in the event of a fire, the gap between the crank portions when the adjacent small fire-resistant partition walls 21 are closed is expanded and expanded at the time when a predetermined high temperature is reached. Can be closed off.

The heat-sensitive foam material is provided in a gap which may be generated when the small fire-resistant partition wall 21 is closed so as not to hinder the opening and closing of the small fire-resistant partition wall 21. What is necessary is just to foam and close a gap.

In the above description, the small fire-resistant partition wall 2
Although the case where the cross-sectional shape of No. 1 is formed in a crank shape has been described, for example, as shown in FIG. The cross-sectional shape of the small fire-resistant partition wall 21 is such that, when the plurality of small fire-resistant partition walls 21 are closed, there is no gap between the small fire-resistant partition walls 21 through which fire, hot air, smoke, and the like during a fire pass. Should be fine. In addition, in the open state in normal times, it is sufficient to leave a space between the small fire-resistant partition walls 21 so that the other side can be seen.

In this way, for example, the fire resistance may be configured to have a fire resistance of 20 minutes or a fire resistance of 60 minutes so as to conform to the current fire resistance standard. The material may be selected so as to meet a desired refractory standard.

In the evacuation staircase partition system using the fire-resistant partition wall 20 of the present invention constructed in a blind shape as described above, if the small fire-resistant partition wall 21 of the fire-resistant partition wall 20 is kept open at normal times, Room 12 and evacuation stairs 10
Air circulation is possible with the side of the staircase 15
Side ventilation is ensured. In the conventional configuration, the room 12 side and the staircase room 15 side are merely connected via the fire door 13.
However, a ventilation fan or the like was provided on the side of the staircase 15 for ventilation with the outside.

However, as shown in FIG. 1, by using the fire-resistant partition wall 20 of the present invention, even if the fire door 13 is closed, the air permeability between the room 12 and the staircase room 15 can be sufficiently improved. Thus, the ventilation of the staircase room 15 can be performed without providing a ventilation fan for the staircase room 15.

In the above description, the case where the fire-resistant partition wall 20 is used in the fire-prevention compartment system of the evacuation stairs has been described. However, it goes without saying that the fire-prevention compartment can be used in other fire-prevention compartments. For example, it can be used for heterogeneous use compartments, open fire compartments, horizontal compartments, and the like. Furthermore, it can also be used in a pit section provided with a lifting device such as an elevator or an escalator. In other words, a fire-prevention compartment must be provided, but the fire-resistant partition wall of the present invention can be effectively applied to places where there is a demand for a feeling of openness and visibility.

[0034]

By using the fire-resistant partition of the present invention, unlike the conventional fire-resistant partition, it is possible to secure lighting, visibility, and air permeability through the fire-resistant partition.

By using the fire-resistant partition wall of the present invention, when using the fire-resistant partition wall having the conventional configuration, the evacuation stairs, which are usually closed spaces and are difficult to recognize, can be used.
Unlike the conventional case, the recognition can be made relatively easy. Therefore, smooth evacuation can be achieved in the event of an instant fire.

The fire-resistant partition wall of the present invention can be opened and closed by rotating a plurality of small fire-resistant partition walls to secure lighting, visibility, and air permeability. And can be used in place of the conventional fire shutter having the following. Unlike when using a fireproof shutter, there is no need to install a shutter box to wind up the fireproof shutter on the ceiling side, and unlike when using a fireproof shutter, preventing the occurrence of dead space and effectively utilizing space Can be achieved.

In the fire-prevention compartment system of the present invention, a fire-resistant partition wall capable of securing lighting, visibility, and air permeability is used in normal times. Sex can be produced. Furthermore, since air permeability can be ensured, the air-conditioning effect between the inside of the fire prevention compartment and the outside of the compartment can be averaged.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a case where a fire-resistant partition wall according to an embodiment of the present invention is used in a fire-prevention compartment system for an evacuation staircase.

FIG. 2 is a partial perspective view showing a state where a plurality of small fire-resistant partition walls of the fire-resistant partition wall are opened.

FIG. 3A is a partially enlarged view showing a state in which a plurality of small fire-resistant partition walls are closed, in a partial cross section,
(B) is an explanatory view showing a rotation situation at the time of opening and closing of a plurality of small fireproof partition walls shown in (A).

FIGS. 4A and 4B are cross-sectional views showing a modification of the small fire-resistant partition wall.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Evacuation stairs 11 Fireproof partition wall 11a Fireproof partition wall 11b Fireproof partition wall 12 Room 13 Fireproof door 14 Fireproof glass 15 Stair room 16 Evacuation shelter 17 Fireproof glass 20 Fireproof partition wall 21 Small fireproof partition wall 21a End face 21b Frame end 21b 23a protrusion 23b protrusion 24 center of rotation 25 shielding plate 25a fireproof coating 26 heat-sensitive foam material

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) E04B 2/00 E04C 2/46 LF term (reference) 2E001 DE03 FA07 GA06 HA11 HB02 HB03 HB04 JA20 NA07 NB02 NB05 NC06 2E002 FB08 FB09 FB16 FB22 MA37 MA38 2E162 BA02 BA03 CA15 CA24 CB02 CB07 CB08 EA11

Claims (5)

[Claims] 1. A fireproof partition, wherein a plurality of small fireproof partitions are provided so as to be openable and closable, and the plurality of small fireproof partitions are connected to each other to form a fireproof partition. wall. 2. The fireproof partition according to claim 1, wherein when the plurality of small fireproof partitions are in a closed state, the adjacent small fireproof partitions are connected to each other in an engaged state. Partition walls. 3. The fire-resistant partition wall according to claim 2, wherein the small fire-resistant partition wall is formed in a rectangular plate shape, a crank portion is provided at an end along a longitudinal direction, and the small fire-resistant partition wall is adjacent to the small fire-resistant partition wall. A fire-resistant partition wall characterized in that end crank portions are engaged with each other so as to be engaged and connected. 4. A fire compartment system, wherein the space on the other side is seen through the fire compartment wall and air permeability with the space on the other side is ensured. 5. The fire protection system according to claim 4, wherein the fire-resistant partition wall according to any one of claims 1 to 3 is used as the fire protection partition wall. system.