JPH086381B2 - Fireproof structure of building unit - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fireproof structure of a building unit, and in particular, it can be used for building a unit building by coating the outer surface of the main structural material of the building unit with a fireproof material.

[0002]

BACKGROUND ART As shown in FIGS. 1 and 2, a unit building 4 is constructed by combining a plurality of building units, for example, first floor, second floor, and third floor building units 1, 2, and 3 at a construction site. Here, each building unit 1, 2 and 3 has four columns 10 at four corners and upper and lower beams that connect the upper ends and the lower ends of these columns 10 to each other.
Ceiling materials, floor materials, wall materials 14 and the like are attached in advance to a skeleton 13 made up of 11 and 12 in a factory to form a substantially box shape.

Among such unit buildings, for three-story or more buildings for use in apartment houses, hospitals, hotels, etc., the main structures such as columns, beams, floors, walls, roofs, etc., in accordance with the Building Standards Act. It is required that the part has a fireproof structure having a predetermined fireproof performance. Therefore, in general, the floor material, ceiling material and wall material are made of refractory material,
The roof is covered with a refractory material, and the pillars and beams are covered with a refractory material to meet the above requirement. Among them, as a conventional refractory structure for covering main structural materials such as columns and beams of a building unit with a refractory material, asbestos cement calcium silicate (silica board) as a refractory material corresponding to the shape of the main structural material,
It is known that it is directly attached to the main structural material by nailing etc.

[0004]

However, conventionally, the silica plate is directly attached to the main structural member by nailing or the like. Since the plate of this main structural material is quite thick,
To drive a nail, you must drive it with a considerable force. When the nail is struck with a strong force by a hammer or the like, the calikal plate is driven too fast and the caikal plate is damaged as a result. In addition, when a nail or the like is hammered, it is possible to accidentally strike the calcareous plate without striking the nail or the like. In this case as well, the calical plate is still damaged.

Further, since the caulcal plate is attached to the main structural material by nailing or the like, the nail is placed at a predetermined position with one hand while pressing the caulcal plate against the main structural material.
It is necessary to hit the nail with another hand by using a hammer or the like, which is inconvenient and troublesome. In particular, it takes a lot of time because a single calcareous plate has to be nailed in many places. Furthermore, there is also the problem that it takes more time to hit the calical plate without destroying it, which will take more time.

It is an object of the present invention to provide a fireproof structure for a building unit, which does not damage the fireproof material to the main structural material of the building unit and can be easily attached in a short time.

[0007]

Therefore, a first invention is a fire resistant structure of a building unit, in which at least a part of an outer surface of a main structural material of the building unit is covered with a fire resistant material, and one end side of the fire resistant material. to contact the well as have a contact with the locking portion on one side surface perpendicular to one side of the principal structural members, the other side surface perpendicular to one side of the principal structural members at the other end to
Having a sandwiching piece made of an elastic member formed by bending,
This sandwiching piece has a bent base end portion on the other end of the refractory material.
Provided from the base end in the same direction as the locking part and midway
To the locking part side,
Formed Te is obtained by the refractory structure of resiliently clamping Soo that building unit the principal structural members between the locking portion.

A second aspect of the present invention is a fireproof coating tool for a building unit, wherein at least a part of the outer surface of the main structural material of the building unit is coated with the fireproof material, the elastic member being attached to the inner surface of the fireproof material. And a mounting member that can be expanded when mounted on the main structural member. The mounting member has a contact portion that contacts one side surface of the main structural member, and a substantially right angle to one end of the contact portion. A locking portion that is bent and formed to abut one side surface that is orthogonal to one side surface of the main structural member, and the other side surface that is bent and formed at the other end of the contact portion and that is orthogonal to one side surface of the main structural material. The main structural member is elastically sandwiched by the locking part, which is in contact with the locking part and is turned in the same direction as the locking part from the base end of the bent part on the other end side to the middle position toward the locking part It is formed with a bending guide part that It is obtained by a fire-resistant structure of the building units in.

[0009]

In the first aspect of the invention as described above, in order to mount the main structural material on the refractory material, the main structural material is attached by the engaging portion provided on one end side of the refractory material and the sandwiching piece provided on the other end side. It is elastically clamped and attached. Mounting of refractory material need only be held between the principal structural members in the locking portion and the holding piece can be installed Rukoto without damaging the refractory material, also, it is easily mountable.

According to the second aspect of the present invention, the attachment member attached to the inner surface of the refractory material has its contact portion contacting one side surface of the main structural material, and the locking portion is orthogonal to the one side surface of the main structural material. The side surface is brought into contact, the bending guide portion is brought into contact with the other side surface opposite to the one side surface, and the main structural member is elastically sandwiched and attached by the locking portion and the bending guide portion. To attach the refractory material to the main structural material, it is sufficient to elastically sandwich the main structural material between the locking portion and the bending guide portion of the mounting member, and to bring the contact portion into contact with one side surface of the main structural material. It can be installed without damaging the refractory material and can be easily installed.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the unit building 4 such as a house constructed by the fireproof structure of the building unit according to the present embodiment has three floors as described above. In order to make such a unit building 4 a fireproof structure, an outer wall 14 and floor materials 15
(See FIG. 6) and the ceiling material (not shown) are made of refractory material. A refractory material is attached to the pillars 10 and the upper and lower beams 11 and 12 which are main structural materials of each building unit 1 and the like. The calcareous plate is used as the refractory material.

3 and 4 show a pillar 10, particularly a unit building 4.
2 shows a case where a refractory covering is attached to the corner portion of the column, that is, the column 10 of the portion A in FIG. 2, the refractory covering 100 includes a caulking plate 101 and a mounting member 102 fixed to the inner surface of the caulking plate 101. It is composed of. The Keikal plate 101 is
Two of the first and second calcareous plates 21A and 21B covering the two surfaces which are not covered by the outer wall 14 of the pillar 10 and the corner outer wall 14A.
The second caulcal plate 21B has a width substantially the same as the width of the column 10, and the first caulcal plate 21A is slightly wider than the second caulcal plate 21B.

A plurality of mounting members 102, 102 are mounted on the inner surface of each of the calcareous plates 21A, 21B, that is, the surface facing the column 10, and these mounting members 102 are attached to one side surface of the column 10. A contact portion 20A that contacts with the contact portion 20A, a locking portion 20B that is formed at one end of the contact portion 20A at a substantially right angle and abuts one side surface orthogonal to the one side surface, and a base end portion 20D at the other end of the contact portion 20A. It is formed by bending from this base end portion 20D and abuts on the other side surface orthogonal to the one side surface, in the same direction as the locking portion 20B and from the base end portion 20D to the intermediate position toward the locking portion 20B side and from there. And a bending guide portion 20C having an inverted V-shaped cross section.

When the first and second calcareous plates 21A and 21B are mounted on the column 10 via the mounting member 102,
Mounting members 102, 10 for the respective calcareous plates 21A, 21B
They are mounted one above the other to prevent them from interfering with each other. The mounting member 102 is formed of an elastic member having high heat resistance, such as spring steel.

FIG. 5 is a sectional view taken along the line VV of FIG. 1, in which the caulk board 101 is attached to the upper beam 11 of the adjoining building unit 3 using the mounting member 102 as described above. The status is shown. Since the structures of adjacent building units 3 and the like are the same, the description here will be given only for one building unit 3. As shown in the figure, a channel steel mounting beam 16 is fixed inside the upper beam 11.
16 and the cross section is formed in the shape of a long square pipe with one side.

On the two surfaces of the upper beam 11 on the indoor side 3A of the building unit 3, that is, on the lower surface and the side surface of the upper beam 11, there is a calical board 101 composed of a horizontal caulking board 31A and a vertical caulking board 31B. It is mounted via a mounting member 102. Since this mounting member 102 has exactly the same basic structure as the mounting member 102 used in the corner portion, the reference numerals are the same as a whole, and only different portions will be described with different reference numerals.

That is, the mounting member 102 is inserted from the lower side to the upper side of the upper beam 11, and is mounted by sandwiching the web surface of the mounting beam 16 and the web surface of the upper beam 11.
Therefore, the locking portion 30B of the mounting member 102 is formed at a height substantially equal to the height of the upper beam 11, and the contact portion 30A is such that the base end portion 30D of the mounting member 102 is located below the flange surface of the lower beam 11. It is formed so as to be located slightly outside, that is, protruding toward the upper beam 11 side of the adjacent building units 3 and the like. A bending guide portion 30C is formed so as to extend in the same direction as the locking portion 30B from the base end portion 30D. Further, a projection 11A protruding outwardly from the web surface of the upper beam 11 is fixed. The protrusion 11A has an inclined side that follows the shape of the bending guide portion 30C that is bent from the base end portion 30D, and by engaging the two with each other, the mounting member 102 does not easily come off from the upper beam 11. ing.

After the mounting member 102 is mounted on the upper beam 11, the vertical caulking plate 31B and the engaging portion of the mounting member 102 are locked.
The frame 18 to which the beam 17 of the ceiling material is connected is fixed to the mounting beam 16 with bolts 19 and the like, sandwiching 30B and 30B. In addition, adjacent upper beams 11, 11 of adjacent building units 3 etc.
After the refractory jacket 100 has been installed on the
A refractory joint material 22 is embedded in the gap formed between A and 31A.

FIG. 6 is a sectional view taken along line VI-VI of FIG. 2, in which the caulk board 101 is attached to the lower beam 12 of the adjoining building unit 3 using the mounting member 102 as described above. The state is shown. Since the structures of adjacent building units 3 and the like are the same, the description here will be made only for one building unit 3. Further, the structure of the lower beam 12 is substantially the same as that of the upper beam 11 described above, and the lower beam 12 is integrally fixed to the mounting beam 16 and is formed in the shape of a square pipe having a long side.

A bracket is attached to the lower part of the lower beam 12 as described above.
A floor material 15 is provided through 30. And this floor material
The mounting plate 10 includes a side surface of the mounting beam 16 in the gap between the upper surface of the lower beam 12 and the upper surface of the lower beam 12, and a calical plate 41A including a calical plate 41A perpendicular to the upper surface of the lower beam 12 and a horizontal calical plate 41B.
Mounted via 2. This mounting member 102 has the same basic structure as that of the mounting member 102 used in the above-mentioned corner portion, and therefore the same reference numerals are used as a whole, and different portions will be denoted by different reference numerals.

That is, the mounting member 102 is inserted from above the lower beam 12, and is mounted by sandwiching the web surface of the mounting beam 16 and the web surface of the lower beam 12. Therefore, the mounting member
The locking portion 40B of 102 is attached to the floor material 15 from the upper flange surface of the lower beam 12.
The contact portion 40A is bent so that the base end portion 40D of the mounting member 102 is located slightly outside the upper flange surface of the lower beam 12, that is, the adjacent building unit 3
The bending guide portion 40C is formed so as to project to the side of the upper beam 11 and the like, and the bending guide portion 40C extends from the base end portion 40D in the same direction as the locking portion 40B. In addition, the projection of the upper beam 11 is also formed on the web surface of the lower beam 12.
As with 11A, the protrusion 12A is fixed and the mounting member 10
2 cannot be pulled out from the lower beam 12. In addition, the fireproof covering 10 is attached to the adjacent lower beams 12 and 12 of the adjacent building units 3 and the like.
After 0 is installed, the fireproof joint material 22 is embedded in the gap formed between the horizontal silica plates 41B, 41B.

FIG. 7 shows a state in which the mounting member 102 is used to mount the calcareous plate 101 on each pillar 10 of the unit building 4 where four pillars 10 of each building unit 3 and the like are assembled. There is. This mounting member 102 also has the same basic structure as that of the mounting member 102 used in the above-mentioned corner portion, so that the reference numerals are the same as a whole, and only different portions will be described with different reference numerals. Further, as described above, the description here will be made only for one building unit 3.

When the caulk board 101 is mounted on the pillar 10 of the portion where the four pillars 10 gather, when the caulk board 101 is mounted on the pillar 10 of the corner portion of the building unit 3 described in FIGS. Is basically the same as. That is, the mounting member
The reference numeral 102 includes a contact portion 50A, a locking portion 50B, and a bending guide portion 50C having a base end portion 50D. However, in the above-mentioned corner portion, the silica plate 101 is mounted on the two surfaces of the pillar 10 via the mounting member 102, but the mounting member 102 of this embodiment has a shape in which the silica plate 51A is fixed only to the contact portion 50A. That is, the refractory covering 100 composed of the mounting member 102 and the calcareous plate 51A covers one surface of the pillar 10. Further, on the surface of the column 10 on which the bending guide portion 50C is mounted, the protrusions 11 and 12 fixed to the upper beam 11 and the lower beam 12 described above.
The protrusion 10A similar to A is fixed and the mounting member 102
Is configured so that it does not come out of the pillar 10.

On the other surface of the pillar 10 which is orthogonal to the above-mentioned one surface, a connecting caulking plate 103, which is another fireproof covering extending over the adjacent pillars 10 of the adjacent building unit 3, is connected and attached. It is adapted to be attached by the member 24. The connecting mounting member 24 has a locking member 24A which is inserted into a gap between the adjacent columns 10 and 10, and the locking member 24A is a pair formed of, for example, spring steel like the mounting member 102. It is composed of a locking piece having a V-shaped cross section. Also, adjacent pillars 1
The above-mentioned projection 10A is also fixed to the facing surfaces of 0 and 10. Therefore, when the locking member 24A is inserted into the gap, the pair of locking pieces are contracted and deformed, and the repulsive force of the contracted deformation causes the engagement. As a result of the stop member 24A engaging with the projection 10A, the connecting silica plate 103 is locked to the adjacent columns 10 and 10 and is hard to come off.

The connecting calikal plate 103 is mounted on the building units 3, 3 and the like on site, and is mounted over the pillars 10 adjacent to each other after the fireproof covering 100 is mounted,
Furthermore, the nails 25 and the like are also fixed to the calical plate 51A. A refractory joint material 22 is embedded in the gap between the silica plates 51A, 51A between the adjacent pillars 10, 10.

Next, the operation of this embodiment will be described. A plurality of building units 3 etc. are produced in advance in a factory. In addition, in the factory, the fixture 102 is fixed to the calcareous plate 101 in advance and is attached to the pillar 10 of the corner of the building unit 3 or the like.
, The fireproof covering 100 to be attached to the adjacent upper beam 11 and the lower beam 12 of the building unit 3 and the like, and the fireproof covering 100 to be attached to the four pillars 10 where the building unit 3 and the like gather.

After a plurality of building units 3 etc. are carried into a construction site and these are appropriately combined to build a unit building 4, fireproof coverings are provided on pillars 10 and beams 11 etc. at predetermined locations of the building units 3 etc. Wear 100. That is, in order to mount the fireproof covering 100 to the corner pillar 10 of the building unit 3 or the like, while inserting the bending guide portion 20C into the gap between the outer wall 14 and the pillar 10, the locking portion 20B is opposite to the gap of the pillar 10. Sandwich the surface,
Until the contact part 20A abuts on one side of the pillar 10, the silica plate 10
Push 1 in. In this way, the two surfaces of the column 10 at the corner are covered with the silica plate 101.

In addition, adjacent upper beams 11, such as the building unit 3,
In order to mount the fireproof covering 100 on the lower beam 12, the bending guides 30C, 40C are installed in the same manner as the mounting of the corners on the pillar 10 described above.
The upper beam 11 and the lower beam 12 are sandwiched between the locking portions 30B and 40B and attached. Further, in order to mount the fireproof covering 100 on the four pillars 10 where the building units 3 and the like gather, the bending guide portion 50C is installed in the same manner as in the case where the corner portion is mounted on the pillar 10 described above.
The pillar 10 is sandwiched between the pillar 10 and the locking portion 50B, and then the locking member 24A is inserted into the gap between the pillars 10 to install the connecting silica plate 103 between the pillars 10 and 10.

According to this embodiment as described above, the following effects can be obtained. That is, when the mounting member 102 is pressed against the pillars 10 and the beams 11 and 12 to attach the calikal plate 101, the pillars 10 and the beams 11 are formed by the locking portions 20B and the like formed of spring steel and the bending guide portions 20C and the like. It is not necessary to use nailing or the like because the pins 12 and 12 are clamped and locked. Therefore, it is possible to mount the keical plate 101 on the pillar 10 and the beams 11 and 12 without damaging it. Also, the mounting of the caulcal plate 101 is performed by mounting the mounting member 102 on the pillar as described above.
It is pressed against 10 and beams 11 and 12, and the locking part 20B and the bending guide part 2
Since the pillar 10 and the beams 11 and 12 may be sandwiched with 0C or the like, it can be performed easily and in a short time.

Further, the tip of the bending guide portion 20C, etc. is a pillar.
Since it has a shape that opens outward in the direction away from the surface of the pillar 10 etc., with the part that abuts 10 etc. as the base point,
When the 102 is attached to the pillar 10 or the beams 11 and 12, it is easy and smooth. Further, the projections 11A, 12A, 10A are fixed to the pillars 10 in the portion where the beams 11, 12 and the four pillars 10 gather, and the respective bending guide portions 30C, 40C, 50
Since C is engaged, there is an effect that the mounting member 102, that is, the fireproof covering 100 is hard to come off from the main structural material such as the beam 11.

A second embodiment is shown in FIG. In this embodiment, the mounting member 102 in the first embodiment is used.
The caulk board 101 is mounted by the holding portion 82 and the holding piece 81, and is attached to the lower beams 12 of the adjacent building units of the first embodiment as shown in FIG. Taken as an example. Here, the same members as those in the first embodiment are designated by the same reference numerals, and the description will be omitted or simplified.

In this embodiment, the fireproof coating 80 is a calcareous plate.
It is composed of 101 and a sandwiching piece 81, and the inner surface of the vertical calikal plate 41A provided at one end side of the calikal plate 101 serves as the locking portion 82, and the inner surface of the horizontal caulking plate 41B serves as the contact portion 83. ing. In other words, the calcareous plates 41A and 41B are directly
Touching twelve. On the other end side of the calikal plate 101, a sandwiching piece 81 is fixed to the lower surface of the horizontal caulkal plate 41B by nailing or the like. The sandwiching piece 81 is formed of an elastic member having high heat resistance, such as spring steel, and has a base end portion 81D protruding outward from the web surface of the lower beam 12, and this base end portion 81
A cross section that is formed by bending from D and abuts on a web surface that is orthogonal to the lower surface of the horizontal calcareous plate 41B, in the same direction as the locking portion 82, and from the base end portion 81D to the intermediate position toward the locking portion 82 side, and then flips from there. It has a V shape.

Further, projections 12A protruding outward from the web surfaces are fixed to the facing web surfaces of the adjacent lower beams 12, and the projections 12A are inclined along the shape of the sandwiching piece 81 having a V-shaped cross section. The holding piece 81 has a side so that the holding piece 81 does not easily come off when it is engaged with the holding piece 81.

Also in this embodiment as described above, the first
The same operation and effect as those of the embodiment can be achieved, the sandwiching piece 81 can be easily manufactured, and since the entire inner surface of the silica plate 101 is in contact with the lower beam 12, they are not in contact with each other. It is possible to add the effect of eliminating damages such as cracks that may occur.

The present invention is not limited to the above-described embodiments, but includes the following modifications and the like. That is, the mounting member 102 inserts the bending guide portion 20C into the gap between the pillar 10 and the outer wall 14 when the caulking plate 101 is mounted on the corner pillar 10 of the first embodiment, but the invention is not limited to this. Alternatively, for example, the locking portion 20B may be inserted into this gap. The point is that the column 10 can be sandwiched between the bending guide portion 20C and the locking portion 20B.

Further, although the shape of the bending guide portion 20C and the like in each of the above-mentioned embodiments is substantially V-shaped in cross section, the shape is not limited to this, and the bending guide portion 20C and the like may be positioned at a corner of the column 10, for example. The other end is a pillar with respect to the base end 20D of the bending guide 20C, etc.
The shape may be a semi-circular shape that contacts 10 and a small-diameter semi-circular tip that extends outward from the semi-circular shape. The point is that the column 10 can be held by the elastic force of the bending guide portion 20C and the locking portion 20B.

In addition, the specific structure, shape, and the like for carrying out the present invention may be any other structure as long as the object of the present invention can be achieved.

[0038]

As described above, according to the fireproof structure of the building unit of the present invention, the fireproof material can be easily attached to the main structural material of the building unit in a short time without being damaged.

[Brief description of drawings]

FIG. 1 is an overall side view of a unit building according to a first embodiment of the present invention.

2 is a plan view of the same and is a sectional view taken along line II-II in FIG.

FIG. 3 is a plan view showing a main part of the first embodiment, and is a detailed view of a portion A in FIG.

FIG. 4 is an exploded perspective view of a column of the same section A and a fireproof covering.

5 is a sectional view taken along line VV in FIG.

6 is a sectional view taken along line VI-VI in FIG.

FIG. 7 is a plan view showing a main part of an embodiment of the present invention.
It is a B section detail drawing in.

FIG. 8 is a sectional view showing an essential part of a second embodiment of the present invention.

[Explanation of symbols]

 3 3rd floor building unit 4 unit building 10 columns 11,12 beams 20A, 30A, 40A, 50A contact part 20B, 30B, 40B, 50B locking part 20C, 30C, 40C, 50C bending guide part 20D, 30D, 40D, 50D Proximal end 80, 100 Fireproof cover 81 Clamping piece 82 Locking part 101 Caical plate (fireproof material) 102 Mounting member

Claims (2)

[Claims] 1. A fire resistant structure for a building unit, wherein at least a part of the outer surface of the main structural material of the building unit is covered with a fire resistant material, wherein one end of the fire resistant material is orthogonal to one side surface of the main structural material. Yes Then abutting engagement portion on one side
Both I an elastic member formed by bending in contact with the other side surface perpendicular to one side of the principal structural members to the other end
Has a gripping piece that is folded over to the other end of the refractory material.
Provide a base end for re-bending, and from this base end,
One direction and halfway toward the locking part side
A fireproof structure for a building unit, wherein the fireproof structure is formed by reversing the structure and elastically sandwiches the main structural material with the locking portion. 2. A fireproof structure for a building unit, wherein at least a part of an outer surface of a main structural material of the building unit is covered with a fireproof material, the fireproof structure being attached to an inner surface of the fireproof material and formed of an elastic member. The main structural member has a mounting member that can be expanded when mounted, and the mounting member has a contact portion that contacts one side surface of the main structural member and one end of the contact portion that is bent at a substantially right angle to form the main member. An engaging portion that abuts on one side surface orthogonal to one side surface of the structural member, and an engaging portion that is bent and formed on the other end of the contact portion and abuts on the other side surface orthogonal to the one side surface of the main structural material. In the same direction and from the base end of the bent portion on the other end side to the midway position toward the locking portion side and flipping from there, and a bending guide portion that elastically clamps the main structural material with the locking portion. Characterized by being formed Fireproof structure of the building unit.