JPH05302379A - Fire-proof structure of unit building - Google Patents

Abstract

PURPOSE:To rapidly and easily fit a fire-proof member to the adjacent main structural members with a distance between the adjacent building units without any damages. CONSTITUTION:A fire-proof coating material 100 covering the lower beam 12 of the adjacent building units 3 with a distance is constituted of calcium silicate board 101 and fitting members 102 fixed to the inner face thereof. The calcium silicate board 101 is formed by a first horizontal calcium silicate board 101A and a second calcium silicate board 101B attached to both sides of the first calcium silicate board. The second calcium silicate board 101B is fitted to the lower beam 12 through a fitting member 102 and the first calcium silicate board 101A is nailed on the protrusion 30D of the fitting member 102.

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 unit building constructed by combining a plurality of building units.

[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 and the like includes four columns 10 at four corners and upper and lower beams 11 and 12 connecting the upper ends and the lower ends of the columns 10 with each other.
A ceiling material, a floor material, a wall material 14 and the like are preliminarily attached to a skeleton 13 made up of in a factory to have a substantially box shape.

Among such unit buildings, three-story or more buildings for use in apartment houses, hospitals, hotels, etc., have main structures such as columns, beams, floors, walls, and roofs 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, floor materials, ceiling materials, and wall materials are made of refractory materials,
The roof is covered with refractory material, and the pillars and beams are covered with refractory material to meet the above requirements. Among them, as a conventional refractory structure that covers main structural materials such as columns and beams of building units with refractory materials, asbestos cement calcium silicate (silica board) as a refractory material corresponding to the shape of the main structural materials,
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. The plate of this main structural material is so thick that it must be driven with considerable force. When the nail is hammered with a strong force by a hammer or the like, the calikal plate is driven too quickly, and as a result, the caikal plate is damaged. Further, when a nail or the like is struck, the silica plate may be accidentally driven without hitting the nail or the like, and in this case also, the silica plate is 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 a hammer or the like with another hand, which is inconvenient and troublesome. In particular, it takes a lot of time because it is necessary to nail many places for each piece of calcareous board. Another problem is that it requires careful work to hit the calik board without breaking it, which takes more time.

An object of the present invention is to provide a fireproof cover for a unit building which can be easily installed in a short time without damaging the fireproof material to the adjacent main structural members with a gap between adjacent building units. To provide the structure.

[0007]

SUMMARY OF THE INVENTION Therefore, the present invention is a fire resistant structure of a unit building in which main structural materials adjacent to each other with a gap between adjacent building units are covered with a fire resistant material, wherein the fire resistant material is the main structure. First covering two identical sides of the material
Refractory material and second refractory material on both sides of the first refractory material
And a mounting member which is formed of an elastic member and which can be expanded when mounted on the main structural member, is attached to the inner surface of the second refractory member. A contact portion that contacts two identical side surfaces of the material, and a locking portion that is formed at one end of the contact portion by bending at a substantially right angle and abuts one side surface of the main structural material that is orthogonal to the two identical side surfaces; The other end of the contact portion has a protrusion protruding toward the gap side, is formed by bending from this protrusion and abuts on the other side surface orthogonal to one side surface of the main structural member, and is in the same direction as the locking portion and It is formed from a base end portion to a middle position toward the locking portion side and inverted from there, and is formed by a bending guide portion that elastically sandwiches the main structural material with the locking portion, After mounting on the structural material, the first It is obtained by the refractory structure of the unit building covering the principal structural members adjacent attached fire material in nailed on the projecting portion of the attachment member.

[0008]

According to the present invention as described above, in the second refractory material, the contact portion of the attachment member attached to the inner surface of the second refractory material abuts on one side surface of the main structural material, and the locking portion and the bending guide portion form the main structure. It is attached by sandwiching the material. After the second refractory material is attached to the adjacent main structural materials, the first refractory material is attached across the adjacent main structural materials, and the nail is driven toward the protrusion of the attachment member. The fire resistant structure of the adjacent main structural material is formed by coating the fire resistant material.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An 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 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. 3) 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 of each building unit 1 or the like. The calcareous plate is used as the refractory material.

FIGS. 3 and 4 show a state in which the lower beam 12 of the building units 3 and the like which are adjacent to each other with a gap therebetween is covered with a fireproof covering to make the unit building 4 a fireproof structure. Here, a channel-shaped steel mounting beam 16 is fixed inside the lower beam 12, and the lower beam 12 and the mounting beam 16 are formed into a rectangular pipe shape having a long side. A floor material 15 is provided below the lower beam 12 via a bracket 30.

The refractory covering 100 for covering the upper portion of the floor material 15 of the lower beam 12 as described above is composed of a silica plate 101 and the silica plate 101.
And an attachment member 102 fixed to the inner surface of the. The Keikal plate 101 is a lower beam of the adjacent building units 3, etc.
The first horizontal calcareous plate 101A straddling between 12 and this first
And a second caulking plate 101B provided on both sides of the caulking plate 101A facing downward and close to the floor material 15, and the mounting member 102 is entirely formed on the inner surface of the second caulking plate 101B. Is installed.

A mounting member 102 formed of an elastic member such as spring steel is provided with a contact portion 30A which comes into contact with one side surface of each of the adjacent lower beams 12 and 12 on the same line, and a contact portion 30A at one end of the contact portion 30A. A locking portion 30B that is bent at a right angle and abuts one side surface orthogonal to the one side surface, and the other end of the contact portion 30A slightly protrudes from the side surface of the lower beam 12 to the gap side between the lower beams 12 and 12. It has a protrusion 30D, and it is bent from the base end of this protrusion 30D and abuts on the other side face that is orthogonal to one side face, in the same direction as the retaining portion 30B and from the protruding portion 30D to the middle position to the retaining portion 30B side. And a bending guide portion 30C having a V-shaped cross section which is inverted from there. Further, projections 12A protruding outwardly from the web surfaces of the adjacent lower beams 12 are fixed to the opposing web surfaces. This protrusion 12A
Has an inclined side along the shape of the bending guide portion 30C that is bent from the base end portion 30D, and by engaging them, the mounting member 102 is prevented from coming off from the lower beam 12.

After the second silica plate 101B is attached to the lower beam 12 via the attachment members 102, the first silica plate 101A is placed on the contact portions 30A of these attachment members 102 and the nails 25 are attached. It can be attached by hitting. At this time, the nails 25 are driven toward the protrusion 30D at a predetermined interval according to the size of the first calcareous plate 101A. Further, the first and second calcareous plates 101A and 101B may be fixed by the nails 26. Further, the second calcareous plate
A fire resistant joint material 22 is appropriately embedded in the gap between 101B and the floor material 15.

Next, the operation of this embodiment will be described. A plurality of building units 3 etc. are produced in advance in a factory. Further, in the factory, the fixture 102 is fixed to the calcareous plate 101 in advance, and the fireproof covering 100 and the like to be attached to the lower beam 12 of the building unit 3 are also prepared.

After a plurality of building units 3 etc. are carried into a construction site and a unit building 4 is built by appropriately combining these, a fireproof covering 100 is provided on pillars 10 and beams 11 etc. at predetermined locations of the unit building 4. Put on. That is, building unit 3
To install the fireproof covering 100 on the lower beam 12, etc., the guide portion 30C and the locking portion 30B sandwich the side surface of the lower beam 12 while overcoming the projection 12A with the bending guide portion 30C, and the contact portion 30A is attached to the lower beam. Push in the fixture 102 until it abuts the top surface of the 12. Next, the first calcareous plate 101A is straddled between the adjacent lower beams 12, the nail 25 is driven toward the projecting portion 30D, and the nail 26 is further driven toward the second calical plate 101B. Finalize. Next, the refractory joint material 22 is embedded in the gap between the second silica plate 101B and the floor material 15.

According to this embodiment as described above, the following effects can be obtained. That is, when the mounting member 102 is pressed against the lower beam 12, the lower beam 12 is clamped and locked by the locking portion 30B and the bending guide portion 30C, so that the second silica plate fixed to the mounting member 102 is fixed. 101B does not have to be nailed.
Therefore, the calikal plate 101B can be attached to the lower beam 12 without being damaged and can be easily performed in a short time.

In order to mount the first calcareous plate 101A, the lower beams 12 adjacent to each other are straddled, and the protruding portion 30 of the mounting member 102 is mounted.
Although the nail 25 is driven toward D, the mounting member 102 can be driven relatively easily because the plate thickness is smaller than that of the lower beam 12, and therefore the first beam 101A is not damaged and the lower beam is not damaged. Can be mounted on 12.

Further, the tip of the bending guide portion 30C is a lower beam.
The mounting member 10 has a shape that opens outward in the direction away from the surface of the lower beam 12 with the portion that abuts 12 as the base point.
When attaching 2 to the lower beam 12, it is easy to do smoothly. In addition, the lower beam 12 has a protrusion 12 protruding outward from its web surface.
A is fixed, and in order to disengage the bending guide portion 30C and the protrusion 12A, it is necessary to pull with a force exceeding the elastic force of the mounting member 102. There is also an effect that it is difficult to come off from the main structural materials such as the lower beam 12.

The present invention is not limited to the above-described embodiments, but includes the following modifications and the like. That is, the shape of the bending guide portion 30C in the above-described embodiment is a substantially V-shaped cross section, but the shape is not limited to this, and the bending guide portion 30C may be formed, for example, in the bending guide portion 30C located at the corner of the lower beam 12. It may be formed in a semi-circular shape such that the other end is in contact with the lower beam 12 with respect to the base end, and a semi-circular tip having a small diameter extending outward from the semi-circular shape. The point is that the lower beam 12 can be held by the elastic force of the bending guide portion 30C and the locking portion 30B.

Further, in the above-mentioned embodiment, the mounting member 102 is provided on the entire inner surface of the silica plate 101,
The present invention is not limited to this, and a plurality of attachment members 102 having a predetermined width may be attached at appropriate intervals. This has the effect of making the mounting member 102 lighter.

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.

[0022]

As described above, according to the fireproof structure for a unit building of the present invention, the fireproof material is not damaged by the main structural materials adjacent to each other with a gap between adjacent building units.
And can be easily installed in a short time>

[Brief description of drawings]

FIG. 1 is an overall view of a unit building showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a detailed view of a main part of the present embodiment, which is III-III in FIG.
It is a line sectional view.

FIG. 4 is a perspective view of the details of the main part.

[Explanation of symbols]

 4 Unit building 10 Pillars 12 Lower beams 25,26 Nails 100 Fireproof coating 101 Caycal board (fireproof material) 101A First caycal board 101B Second caycal board 102 Mounting member

Claims (1)

[Claims] 1. A fire resistant structure for a unit building, wherein main structural materials adjacent to each other with a gap between adjacent building units are covered with a fire resistant material, wherein the fire resistant material covers two same side surfaces of the main structural material. The first refractory material and the second refractory material provided on both sides of the first refractory material,
A mounting member, which is formed of an elastic member and is capable of expanding when mounted on the main structural member, is attached to the inner surface of the refractory material, and the mounting member contacts two identical side surfaces of the main structural member. Portion, a locking portion formed at one end of the contact portion so as to be bent at a substantially right angle and abutting on one side surface orthogonal to two same side surfaces of the main structural member, and the other end of the contact portion protruding toward the gap side. The engaging portion is bent from the protruding portion and abuts on the other side surface orthogonal to one side surface of the main structural member in the same direction as the engaging portion and from the base end portion to an intermediate position to the engaging portion. The first refractory material after the mounting member is mounted on the main structural material, and is formed by a bending guide portion that faces toward the side and is inverted from there and elastically sandwiches the main structural material with the locking portion. The protrusion of the mounting member Refractory structures of the unit building, which comprises coating the mounting adjacent primary structural members in nailed on.