JP2019011639A - Fireproof wooden disaster prevention shelter - Google Patents

Abstract

To provide a fireproof wooden disaster prevention shelter excellent in fire protection performance and earthquake resistance performance.SOLUTION: There is provided a fireproof wooden disaster prevention shelter X which can be installed indoors of existing buildings, comprising a side wall portion provided on the concrete layer provided on the foundation of the existing building so as to stand upright from a peripheral edge of a bottom wall portion installed through a plurality of support members arranged at intervals, a housing portion 3 provided on the upper surface of the side wall portion and composed of a ceiling wall portion for sealing the inner region. The bottom wall portion, the side wall portion, and the ceiling wall portion are each composed of a plurality of pillar portions and a block portion disposed between the pillar portions. The block portion has a base portion and a heat insulating portion provided in the base portion. An outer wall portion made of an incombustible material is attached to the outsides of the bottom wall portion, the side wall portion, and the ceiling wall portion.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a fireproof wooden disaster prevention shelter, and more particularly to a fireproof wooden disaster prevention shelter that is excellent in fireproof performance and seismic performance.

  Wood is a recyclable resource with excellent humidity control and thermal insulation properties. For this reason, a wooden building using wood as a main part in terms of structural strength is spreading as an environmentally friendly building.

In recent years, disasters such as earthquakes and fires are increasing all over the world, and various disaster prevention technologies have been developed from the viewpoint of disaster prevention.
For example, technologies such as "earthquake resistance", "seismic control" and "seismic isolation" are known for earthquakes, and so-called "fireproof buildings" are known for fires. .

  By the way, when building a new building, it is possible to adopt these technologies, but it is difficult to add these technologies to existing buildings having various structures. .

On the other hand, seismic shelters that can be installed indoors in existing buildings have been developed.
For example, an indoor wooden earthquake-resistant shelter is known in which an earthquake-resistant reinforced wooden member can be assembled inside a room in an existing wooden building and the entire room is seismically reinforced according to the size of the room (see, for example, Patent Document 1). ).
In addition, it is installed using one room of the existing detached house, and consists of a rigid wooden framed nailing method with a rigid structure. At least the foundation, solid concrete laying, floor bundles, large pulls, columns, studs, beams A wooden earthquake-resistant shelter having a frame such as a floor plate, a wall plate, and a ceiling plate attached to the frame is known (for example, see Patent Document 2).

JP 2010-156174 A JP 2013-181347 A

However, although the earthquake-resistant shelters described in Patent Documents 1 and 2 have a certain effect in terms of reducing earthquake damage, they cannot be said to have a sufficient effect in terms of fire prevention.
That is, in the event of an earthquake, there is a high possibility that a fire will occur at the same time. However, since these earthquake-resistant shelters are all made of wood, there is a possibility that they will burn due to the fire. Therefore, in the event of an earthquake, there is a drawback that it is not possible to feel secure even if these earthquake-resistant shelters are used.

  This invention is made | formed in view of the said situation, and it aims at providing the fireproof wooden disaster prevention shelter excellent in fireproof performance and seismic performance.

  The present inventor has intensively studied in order to solve the above-mentioned problems. As a result, a concrete layer is provided on the foundation, and a bottom wall portion, a side wall portion, and a ceiling wall portion are provided thereon. It has been found that the above-mentioned problems can be solved by attaching an outer wall portion made of the present invention, and the present invention has been completed.

  The present invention is (1) a fireproof wooden disaster prevention shelter that can be installed indoors in an existing building, and a concrete layer provided on the foundation of the existing building and a space above the concrete layer A bottom wall portion installed via a plurality of support members, a side wall portion provided so as to stand up from a peripheral edge of the bottom wall portion, and an upper surface of the side wall portion, and surrounded by the side wall portion A bottom wall, a side wall, and a ceiling wall are all disposed between the plurality of pillars and the pillars. The block part has a base part and a heat insulating part provided in the base part, and the bottom wall part, the side wall part and the ceiling wall part are made of non-combustible material. It exists in the fireproof wooden disaster prevention shelter where the outer wall part which becomes becomes.

  The present invention resides in (2) a fire-resistant wooden disaster prevention shelter as described in (1) above, which is made of a non-combustible heat insulating material in which the heat insulating portion is made non-combustible.

  According to the present invention, (3) a corner outer wall portion made of a non-combustible material having an L-shaped cross section is disposed outside the column portion positioned at the corner, and the corner outer wall portion is connected to the outer wall portion, The fireproof wooden disaster prevention shelter according to the above (1) or (2), wherein the part, the side wall part, and the ceiling wall part are covered with the outer wall part or the corner outer wall part.

  This invention exists in the fire-resistant wooden disaster prevention shelter of the said (3) description with which the clearance gap of 0.1-1 mm is provided between (4) square outer wall parts and outer wall parts.

  The present invention resides in (5) the fireproof wooden disaster prevention shelter according to any one of (1) to (4), wherein the side wall is provided with a door, and the door is a block. .

  This invention exists in the fire-resistant wooden disaster prevention shelter as described in any one of said (1)-(5) whose support tool is a seismic isolation rubber.

  In the present invention, (7) a floor portion is provided on the bottom wall portion, an intake / exhaust port is provided on the floor portion, and a through-hole penetrating the bottom wall portion is provided on the bottom wall portion. It exists in the fireproof wooden disaster prevention shelter as described in any one of said (1)-(6) provided.

  The present invention relates to (8) fireproof wooden disaster prevention as described in any one of (1) to (7) above, wherein the nonflammable material is a nonflammable veneer laminate in which veneers to which a nonflammable liquid is applied are bonded together. Be in a shelter.

  In the fireproof wooden disaster prevention shelter of the present invention, a concrete layer is provided on the foundation of an existing building, and a housing part is provided thereon via a support, so that in the event of an earthquake, the housing part is greatly lowered downward. It is possible to prevent a situation such as dropping.

In the fire-resistant wooden disaster prevention shelter of the present invention, in the event of a fire, the outer wall portion made of a non-combustible material is attached to the outside of the bottom wall portion, the side wall portion, and the ceiling wall portion, so that it can be prevented from burning. it can.
In this specification, “non-combustible” means non-flammable material that does not ignite when it comes into contact with flames, or non-combustible performance as defined in Article 108-2 of the Building Standard Law Enforcement Ordinance.
At this time, since the heat insulating portions are provided in the block portions constituting the bottom wall portion, the side wall portions, and the ceiling wall portion, it is possible to suppress the temperature rise in the internal region surrounded by the side wall portions.
In addition, the fire generally spreads from below, and the fireproof wooden disaster prevention shelter has only a concrete layer and support members arranged at intervals below the outer wall outside the bottom wall. Therefore, even if a fire occurs around the fireproof wooden disaster prevention shelter, it can be prevented from spreading to the housing portion.

  In the fire-resistant wooden disaster prevention shelter of the present invention, the bottom wall portion, the side wall portion, and the ceiling wall portion are each composed of a plurality of column portions and a block portion disposed between the column portions. Therefore, it can be assembled relatively easily. Thereby, installation is possible even in an existing building indoors.

  In the fireproof wooden disaster prevention shelter of the present invention, when the heat insulating part is made of a noncombustible heat insulating material, the fireproof performance can be further improved.

In the fireproof wooden disaster prevention shelter of the present invention, the fireproof performance can be further improved by covering the entire bottom wall portion, side wall portion and ceiling wall portion with an outer wall portion or a corner outer wall portion made of a non-combustible material. At the same time, the fireproof time can be made longer.
At this time, it is preferable that a clearance of 0.1 to 1 mm is provided between the corner outer wall portion and the outer wall portion that are continuously provided. In this case, since the corner outer wall portion or the outer wall portion has a degree of freedom of movement, it is possible to absorb an impact caused by vibration during an earthquake.

  In the refractory wooden disaster prevention shelter of the present invention, by providing a door portion made of a block portion on the side wall portion, the heat insulating property is maintained and it can be attached relatively easily.

  In the fireproof wooden disaster prevention shelter of the present invention, the seismic performance can be further improved by using the support as a base isolation rubber.

  In the fire-resistant wooden disaster prevention shelter of the present invention, by providing an intake / exhaust port in the floor portion and providing a through-hole penetrating the bottom wall portion in the bottom wall portion, it is possible to ventilate an internal region surrounded by the side wall portion. It becomes possible.

In the fire-resistant wooden disaster prevention shelter of the present invention, the size can be freely adjusted when the non-combustible material is made of a non-combustible single plate laminated material in which single plates provided with a non-combustible liquid are bonded together.
In addition, the fireproof performance can be further improved, and sufficient strength can be provided.

FIG. 1 is a schematic view showing an embodiment of a fireproof wooden disaster prevention shelter according to the present invention. (A) of FIG. 2 is sectional drawing which cut | disconnected the fireproof wooden disaster prevention shelter which concerns on this embodiment by the vertical surface. (B) of FIG. 2 is sectional drawing which cut | disconnected the fireproof wooden disaster prevention shelter which concerns on this embodiment at the horizontal surface. FIG. 3 is an enlarged cross-sectional view showing a unit composed of a pillar portion and a block portion in the fireproof wooden disaster prevention shelter according to the present embodiment. FIG. 4 is an enlarged cross-sectional view showing an outer wall portion of the fireproof wooden disaster prevention shelter according to the present embodiment. FIG. 5 is an enlarged cross-sectional view showing a corner outer wall portion of the fireproof wooden disaster prevention shelter according to the present embodiment. FIG. 6 is a perspective view showing a sample of the block portion used in the example. FIG. 7 is a temperature graph obtained in a sample evaluation test in the examples.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings as necessary. In the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted. Further, the positional relationship such as up, down, left and right is based on the positional relationship shown in the drawings unless otherwise specified. Further, the dimensional ratios in the drawings are not limited to the illustrated ratios.

FIG. 1 is a schematic view showing an embodiment of a fireproof wooden disaster prevention shelter according to the present invention.
As shown in FIG. 1, the fireproof wooden disaster prevention shelter X includes a hollow quadrangular prism-shaped housing portion 3 and is installed indoors in an existing building H. The existing building H may have a wooden structure (wooden structure) or a steel structure.
The housing part 3 of the fireproof wooden disaster prevention shelter X is installed by bringing a pillar part and a block part, which will be described later, into the first floor room of the existing building H and assembling them. Details of the installation method will be described later.

(A) of FIG. 2 is sectional drawing which cut | disconnected the refractory wooden disaster prevention shelter which concerns on this embodiment by the vertical surface, (b) is sectional drawing which cut | disconnected the refractory wooden disaster prevention shelter which concerns on this embodiment on the horizontal surface. is there.
As shown in FIG. 2 (a), the fireproof wooden disaster prevention shelter X has a concrete layer 1 provided on a foundation K of an existing building installed on the ground G, and a gap between the concrete layer 1 and the concrete layer 1. A plurality of support devices 2 arranged at a distance, and a housing portion 3 installed via the support device 2 are provided.
The housing part 3 is provided on a rectangular bottom wall part 31, four side wall parts 32 provided so as to stand up from the periphery of the bottom wall part 31, and the upper surfaces of these side wall parts 32, It consists of a ceiling wall portion 33 that seals the inner region S surrounded by these side wall portions 32.

The concrete layer 1 is provided in layers on the foundation K of the existing building so that the surface is flat and rectangular in top view. Thereby, the concrete layer 1 is integrated with the foundation K.
In the fire-resistant wooden disaster prevention shelter 1, the gap between the bottom wall 31 and the foundation K is made as small as possible by providing the concrete layer 1 between the bottom wall 31 and the foundation K. Thereby, it can prevent that the housing part 3 falls largely downwards in the case of an earthquake, and can suppress invasion of a fire in the case of a fire.

The support 2 is placed on the concrete layer 1. Since the housing part 3 is placed on the support 2, the support 2 is sandwiched between the concrete layer 1 and the housing part 3.
The support 2 is disposed directly below each pillar portion 3a of the bottom wall portion 31 described later.
Moreover, the support tool 2 is arranged in multiple numbers along the length direction of the pillar part 3a. In addition, it is preferable to make the space | interval of the adjacent support tools 2 into equal intervals as much as possible.

The support 2 preferably has a seismic isolation function. Specific examples include seismic isolation (vibration isolation) rubber, seismic isolation (vibration isolation) pads, springs, and the like.
When the support 2 has a seismic isolation function, it is possible to suppress vibrations from being transmitted to the housing part 3 in the event of an earthquake.
Of these, the support 2 is preferably a seismic isolation rubber. In this case, the installation is easy and the seismic isolation effect can be sufficiently exhibited.

  In addition to this, in the fire-resistant wooden disaster prevention shelter X according to the present embodiment, the support 2 is also provided between the housing portion 3 and the wall W of the room of the existing building. For this reason, in the fireproof wooden disaster prevention shelter X, it is possible to suppress the transmission of vibrations not only to pitching but also to rolling.

As shown in FIG. 2A and FIG. 2B, the housing part 3 has a bottom wall part 31, a side wall part 32, and a ceiling wall part 33, each of which has a plurality of pillar parts 3a and the pillars. It consists of a block part 3b disposed between the parts 3a.
Specifically, the bottom wall portion 31, the side wall portion 32, and the ceiling wall portion 33 are arranged in a plurality at equal intervals so that the plurality of column portions 3 a are parallel to each other, and are blocked between the column portions 3 a. The portion 3b is arranged. For this reason, the fireproof wooden disaster prevention shelter X can be assembled relatively easily. Thereby, installation is possible even in an existing building indoors.

FIG. 3 is an enlarged cross-sectional view showing a unit composed of a pillar portion and a block portion in the fireproof wooden disaster prevention shelter according to the present embodiment. In FIG. 3, the column portion and the block portion of the unit are indicated by solid lines, and the remainder is indicated by chain lines.
As shown in FIG. 3, the unit U includes a pillar portion 3a and a block portion 3b attached to the pillar portion 3a.
In addition, the block part 3b and the pillar part 3a of the both sides are mutually fixed with the adhesive agent and / or fasteners, such as a screw, a screw, and a volt | bolt.
Moreover, although not shown in figure, the length of the pillar part 3a and the block part 3b is the same, and both end surfaces are flush.

The column portion 3a is made of a so-called square bar having a quadrangular column shape.
The material of the column part 3a is not particularly limited, and common wood such as red pine, bamboo shoot, pine pine, cedar, bamboo leaf, chestnut, rice bran, spruce, rice hull, rice pine, etc. can be employed.
Moreover, it is preferable to employ | adopt what is called a solid material which is the timber cut out from the log as a pillar part 3a from a humidity control viewpoint.

The block portion 3b has a base portion 3b1 in which a plurality of block plate bodies 4 are bonded to each other, a heat insulating portion 3b2 provided in the base portion 3b1, and a stud 4a provided on both sides of the heat insulating portion 3b2. Yes.
Specifically, the block portion 3b is sandwiched between the pillar portions 3a, the block plate bodies 4 arranged on the outside, the block plate bodies 4 arranged on the inside thereof, and the intermediate posts 4a. The heat insulating part 3b has a laminated three-layer structure.
In the block portion 3b, the block plate bodies 4 are fixed to each other by an adhesive and / or a fastener such as a screw, a screw, or a bolt. Similarly, 4a is fixed to each other by an adhesive and / or by a fastener such as a screw, a screw, or a bolt.
Thus, in the fireproof wooden disaster prevention shelter X, since the heat insulation part 3b2 is provided in the block part 3b, the temperature rise of the internal region S surrounded by the side wall part 32 can also be suppressed.

In addition to this, in the fire-resistant wooden disaster prevention shelter X according to the present embodiment, the inner wall portion 5 is provided inside the block portion 3b, that is, inside the heat insulating portion 3b2. Therefore, the heat insulating portion 3b is sandwiched between the pair of small block plate bodies 4 in the width direction, and is sandwiched between the block plate body 4 and the inner wall portion 5 which are wide in the thickness direction.
In addition, the inner wall part 5 is being fixed to the pillar part 3a and the spacer 4a with adhesives and / or fasteners, such as a screw, a screw, and a volt | bolt.

In the fire-resistant wooden disaster prevention shelter X according to the present embodiment, a square columnar so-called square member is used as the spacer 4a.
The material of the spacer 4a is not particularly limited, and common wood such as red pine, bamboo shoot, pine pine, cedar, bamboo leaf, chestnut, rice bran, spruce, rice hull, rice pine, etc. can be used.
Moreover, as the interphase pillar 4a, it is preferable to employ | adopt what is called a solid material which is the wood cut out from the log from a humidity control viewpoint.
In addition, it is also possible to employ a plywood, a synthetic wood, a non-combustible wood, a single-plate laminated material (LVL), a plate-like laminated material, or the like for the interphase 4a instead of the solid material.

In the fireproof wooden disaster prevention shelter X according to the present embodiment, plywood is used as the block plate 4 and the inner wall 5.
The block plate 4 and the inner wall 5 may be made of wood (solid material), synthetic wood, non-combustible wood, single-plate laminated material (LVL), plate-like laminated material, etc., instead of plywood. Is possible. Further, the wide block plate 4, the small block plate 4, and the inner wall 5 may be the same or different within these ranges. Also good.

In the fireproof wooden disaster prevention shelter X according to the present embodiment, an incombustible incombustible heat insulating material is used as the heat insulating portion 3b2. Thereby, the fireproof wooden disaster prevention shelter X can further improve the fireproof performance.
Examples of the incombustible heat insulating material include those obtained by treating a foamed heat insulating material such as urethane foam, phenol foam, polystyrene foam, EPS (bead method polystyrene), XPS (extruded polystyrene) with an incombustible liquid.
Among these, it is preferable that the incombustible heat insulating material is an incombustible EPS from the viewpoint of the incombustible effect, the heat insulating effect, and the versatility.

Nonflammable liquids include boron compounds such as boric acid, sodium borate, potassium borate and ammonium borate, phosphoric acid compounds such as ammonium phosphate and guanidine phosphate, halogen compounds such as nitrogen compounds and ammonium bromide, silicon compounds An aqueous solution such as The incombustible liquid may contain a known additive.
Further, for example, the non-combustible treatment liquid described in Japanese Patent No. 3485914 can be used.

  The method for applying the incombustible liquid is not particularly limited, and examples thereof include a spraying method for spraying the incombustible liquid and a dipping method for applying the incombustible liquid by immersing the dried heat insulating material in the incombustible liquid.

FIG. 4 is an enlarged cross-sectional view showing an outer wall portion of the fireproof wooden disaster prevention shelter according to the present embodiment. In FIG. 4, the outer wall portion is indicated by a solid line and the remainder is indicated by a chain line.
As shown in FIG. 4, the outer wall part 6 is attached to the outer side of the pillar part 3a and the block part 3b.
In addition, the outer wall part 6, the pillar part 3a, and the block part 3b are being mutually fixed with the adhesive agent and / or fasteners, such as a screw, a screw, and a volt | bolt.
Moreover, although not shown in figure, the length of the outer wall part 6, the pillar part 3a, and the block part 3b is the same, and both end surfaces are flush.

The outer wall part 6 consists of a nonflammable material. That is, the outer wall portion 6 made of noncombustible wood is attached to the outside of the bottom wall portion 31, the side wall portion 32, and the ceiling wall portion 33.
Thereby, in the fireproof wooden disaster prevention shelter X, it can prevent that the housing part 3 burns in the case of a fire.

Specifically, the outer wall portion 6 is made of a non-combustible single plate laminated material in which single plates 6a to which a non-combustible liquid is applied are bonded together.
In addition, as the outer wall part 6, it is also possible to adopt a material obtained by treating a material such as wood (solid wood), synthetic wood, plywood, or plate-like laminated material with a non-combustible liquid instead of the non-combustible single plate laminated material. is there.
Such incombustible liquid is the same as described above.

Returning to (a) of FIG. 2, in the fire-resistant wooden disaster prevention shelter X, the angle formed by the bottom wall portion 31 and the side wall portion 32, the angle formed by the adjacent side wall portions 32, and the side wall portion 32 and the ceiling wall portion 33. A corner outer wall portion 7 made of a non-combustible material having an L-shaped cross section is disposed outside the column portion 3a located at the corner formed by the cross section.
The corner outer wall portion 7 is connected to the outer wall portion 6 so that the outer surface is flush.
That is, the fireproof wooden disaster prevention shelter X has a structure in which the bottom wall portion 31, the side wall portion 32, and the ceiling wall portion 33 are covered with the outer wall portion 6 or the corner outer wall portion 7. Thereby, fireproof wooden disaster prevention shelter X improves fireproof performance more and also takes fireproof time for a long time.

FIG. 5 is an enlarged cross-sectional view showing a corner outer wall portion of the fireproof wooden disaster prevention shelter according to the present embodiment.
The corner outer wall portion 7 is made of a non-combustible material.
Specifically, the corner outer wall portion 7 is made of a non-combustible single plate laminated material in which single plates to which a non-combustible liquid is applied are bonded together.
In addition, as the corner outer wall part 7, it is also possible to adopt a material obtained by treating a material such as wood (solid material), synthetic wood, plywood, or plate-like laminated material with a non-combustible liquid instead of the non-combustible single plate laminated material. It is.
Such incombustible liquid is the same as described above.

Here, as shown in FIG. 5, a gap D of 0.1 to 1 mm is preferably provided between the corner outer wall portion 7 and the outer wall portion 6. In this case, the corner outer wall portion 7 or the outer wall portion 6 has a degree of freedom of movement, so that it is possible to absorb an impact caused by vibration during an earthquake.
Moreover, when the corner | angular outer wall part 7 or the outer wall part 6 is a thing of wood, the expansion-contraction peculiar to wood which originates in moisture content etc. can be absorbed.

Returning to (a) of FIG. 2, in the fire-resistant wooden disaster prevention shelter X, the floor portion 8 is provided on the bottom wall portion 31 via the support column 8 a. In addition, the floor part 8 is provided in the position corresponding to the lower end of the door part mentioned later.
The floor portion 8 is provided with an intake / exhaust port 9 a, and the bottom wall portion 31 is provided with a through hole 9 b penetrating the bottom wall portion 31. For this reason, the internal region S on the floor portion 8 surrounded by the side wall portion 32 leads to a space between the floor portion 8 and the bottom wall portion 31 via the intake / exhaust port 9a. Through the hole 9b, the air is communicated between the bottom wall portion 31 and the concrete layer 2 to the outside air.
For this reason, it becomes possible to ventilate the internal region S.

As shown to (a) of FIG. 2 and (b) of FIG. 2, in the fireproof wooden disaster prevention shelter X, the door part 10 is provided in the side wall part 32 which opposes, respectively. Both door portions 10 have the same structure.
The door part 10 consists of a pair of plywood 10a, the block part 3b attached between the plywood 10a, and the rotating shaft body 10b attached to one plywood 10a.
Therefore, the door part 10 can be opened and closed by rotating around the rotating shaft body 10b.

Moreover, in the door part 10, the inner wall part 5 is provided inside the block part 3b, and the outer wall part 6 is provided outside the block part 3b.
In addition, since the structure of the block part 3b, the inner wall part 5, and the outer wall part 6 is the same as what was mentioned above, description is abbreviate | omitted.

Thus, since the door part 10 has the block part 3b, while being able to maintain heat insulation, it can be attached comparatively easily.
Moreover, since the outer wall part 6 which consists of a nonflammable material is attached to the door part 10, it is excellent also in fireproof performance.

Next, the installation method of the fireproof wooden disaster prevention shelter X which concerns on this embodiment is demonstrated.
As described above, the fire-resistant wooden disaster prevention shelter X is provided on the first floor in order to use the foundation of the existing building.
If a floor or the like is installed on the foundation of an existing building, remove it beforehand.

First, the concrete layer 1 is laid on the foundation. At this time, the surface of the concrete layer 1 is flat.
Next, the support 2 is disposed on the concrete layer 2. Specifically, the support tool 2 is disposed at a position corresponding to the position of the column portion 3a of the bottom wall portion 31 to be installed next.

And the column part 3a and the block part 3b which were carried in are assembled, and the side wall part 32 and the ceiling wall part 33 including the bottom wall part 31, the door part 10 are formed.
Next, the floor portion 8 is installed, and the fire wall wooden disaster prevention shelter X is installed by providing the inner wall portion 5 and the outer wall portion 6 on the side wall portion 32 and the ceiling wall portion 33 including the bottom wall portion 31 and the door portion 10. The

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment.

  In the fireproof wooden disaster prevention shelter X according to the present embodiment, the housing portion 3 has a hollow quadrangular prism shape, but is not limited thereto, and may be a hollow polygonal column shape or a dome shape. In this case, the concrete layer provided on the foundation K of the existing building may also have a polygonal shape corresponding to the shape of the housing part 3.

  In the fire-resistant wooden disaster prevention shelter X according to the present embodiment, the support 2 is simply sandwiched between the concrete layer 1 and the housing part 3, and is attached to these by an adhesive and / or screw. It may be fixed by a fastener such as a screw or a bolt.

In the fireproof wooden disaster prevention shelter X according to the present embodiment, a plywood is used as the block plate-like body 4 and the inner wall 5, but a plywood treated with an incombustible liquid may be used.
Similarly, instead of plywood, wood (solid material), synthetic wood, incombustible wood, single-plate laminated material (LVL), plate-like laminated material, etc., treated with a non-combustible liquid may be employed.
Such incombustible liquid is the same as described above.

In the fireproof wooden disaster prevention shelter X according to the present embodiment, an incombustible non-combustible heat insulating material is used as the heat insulating portion 3b2, but it may not be incombustible.
Further, as the heat insulating material, a fiber heat insulating material such as glass wool, rock wool, cellulose fiber, carbonized cork, or wool heat insulating material can be used instead of the foam heat insulating material.

  In the fireproof wooden disaster prevention shelter X according to the present embodiment, the outer wall portion 6, the corner outer wall portion 7, the heat insulating portion 3b2, and the like are incombustible by treatment with an incombustible liquid, but the incombustible method is not limited thereto.

  In the fire-resistant wooden disaster prevention shelter X according to the present embodiment, the floor portion 8 is provided on the bottom wall portion 31 via the support column 8a, but it is not always essential. That is, the floor portion may be provided without using the support column, and the bottom wall portion itself may be used as the floor portion.

  In the fireproof wooden disaster prevention shelter X according to the present embodiment, the door portion 10 is provided on each of the opposing side wall portions 32, but the position where the door portion 10 is provided is not particularly limited.

  EXAMPLES Hereinafter, although this invention is demonstrated more concretely based on an Example, this invention is not limited to a following example.

In order to confirm the fire resistance of the fireproof wooden disaster prevention shelter according to the present invention, a small sample (300 × 300 mm) of the block portion was produced.
FIG. 6 is a perspective view showing a sample of the block portion used in the example.
As shown in FIG. 6, the sample 3 b ′ is composed of a layer composed of the inner wall portion 5, a layer composed of the heat insulating portion 3 b 2 and the intermediate pillar 4 a provided on both sides of the heat insulating portion 3 b 2, and one block plate 4. The layer and the two layers formed of the outer wall portion 6 are stacked in this order.
In the sample 3b ′, a plywood is used as the inner wall 5 and the block plate body 4, an incombustible EPS is used as the heat insulating part 3b2, a solid material of cedar is used as the spacer 4a, and the outer wall part 6 is used as the outer wall part 6. Uses non-combustible non-combustible laminates.
In addition, these are mutually fixed with the adhesive agent and the bis | screw.

And insert thermocouples between each layer, that is, CH1, CH2, CH3, CH4 and CH5 shown in FIG. 6, and conform to the evaluation test method of 1 hour fire resistance (wall furnace) in the fireproof structure certification approved by the Minister of Land, Infrastructure, Transport and Tourism The fire resistance test was conducted for 1 hour.
That is, the heating along the ISO834 heating curve in which the standard heating time-temperature curve was defined was performed for 1 hour, and after the heating was completed, the cooling was performed for 3 times or more (180 minutes) of the heating.
The obtained temperature graph is shown in FIG.
As shown in FIG. 7, as for the block part of the fire-resistant wooden disaster prevention shelter which concerns on this invention, all of CH1, CH2, CH3, CH4 and CH5 are the maximum temperature of 260 degrees C or less, and carbonization was not recognized.
From this, it was found that the fireproof wooden disaster prevention shelter according to the present invention is excellent in fireproofing performance.

The fireproof wooden disaster prevention shelter X according to the present invention can be installed indoors in an existing building, and is used as a shelter for evacuating in the event of a disaster.
The fireproof wooden disaster prevention shelter X according to the present invention is excellent not only in earthquake resistance but also in fireproof performance.

DESCRIPTION OF SYMBOLS 1 ... Concrete layer 10 ... Door part 10a ... Plywood 10b ... Rotating shaft body 2 ... Supporting tool 3 ... Housing part 31 ... Bottom wall part 32 ... Side wall part 33 ... Ceiling wall part 3a ... Column part 3b ... Block part 3b1 ... Base part 3b2 ... Heat insulation part 4 ... Plate-like body for blocks 4a ... Intermediary pillar 5 ... Inner wall part 6・ ・ ・ Outer wall part 7 ・ ・ ・ Square outer wall part 8 ・ ・ ・ Floor part 8a ・ ・ ・ Stand 9a ・ ・ ・ Intake / exhaust port 9b ・ ・ ・ Through hole G ・ ・ ・ Ground H ・ ・ ・ Existing building K ・・ ・ Basic S ・ ・ ・ Internal area U ・ ・ ・ Unit W ・ ・ ・ Wall X ・ ・ ・ Fireproof wooden disaster prevention shelter

Claims (8)

A fireproof wooden disaster prevention shelter that can be installed indoors in an existing building,
A concrete layer provided on the foundation of the existing building;
On the concrete layer, a bottom wall portion installed via a plurality of supports spaced apart from each other, a side wall portion provided so as to stand up from a peripheral edge of the bottom wall portion, and the side wall portion A housing portion comprising a ceiling wall portion provided on the upper surface and sealing an inner region surrounded by the side wall portion;
With
The bottom wall part, the side wall part, and the ceiling wall part are each composed of a plurality of pillar parts and a block part disposed between the pillar parts,
The block part has a base part and a heat insulating part provided in the base part,
A fireproof wooden disaster prevention shelter in which an outer wall portion made of a noncombustible material is attached to the outside of the bottom wall portion, the side wall portion, and the ceiling wall portion.   The fireproof wooden disaster prevention shelter according to claim 1, wherein the heat insulating portion is made of a noncombustible heat insulating material. Outside the pillar located at the corner, a corner outer wall made of an incombustible material having an L-shaped cross-section is disposed,
The corner outer wall portion is connected to the outer wall portion,
The fireproof wooden disaster prevention shelter according to claim 1 or 2, wherein the bottom wall portion, the side wall portion, and the ceiling wall portion are covered with the outer wall portion or the corner outer wall portion.   The fireproof wooden disaster prevention shelter according to claim 3, wherein a gap of 0.1 to 1 mm is provided between the corner outer wall portion and the outer wall portion. The side wall portion is provided with a door portion,
The fireproof wooden disaster prevention shelter according to any one of claims 1 to 4, wherein the door portion includes the block portion.   The fireproof wooden disaster prevention shelter according to any one of claims 1 to 5, wherein the support is a seismic isolation rubber. A floor portion is provided on the bottom wall portion,
The fireproof wooden disaster prevention shelter according to any one of claims 1 to 6, wherein the floor portion is provided with an intake / exhaust port, and the bottom wall portion is provided with a through-hole penetrating the bottom wall portion.   The fire-resistant wooden disaster prevention shelter according to any one of claims 1 to 7, wherein the non-combustible material is made of a non-combustible single plate laminated material in which single plates provided with a non-combustible liquid are bonded together.

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