JPH0781342B2 - Fireproof construction method of unit type building - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction method for making a frame of a unit type building a fireproof structure.

[0002]

[Background Art] When a unit-type building constructed by combining a plurality of building units exceeds a certain height or is used for an apartment or the like, legally, the frame of the unit-type building is covered with fireproof coating. It must be covered with wood and have a fireproof structure.

Since the unit type building is intended to improve work efficiency by completing a lot of work in a factory and reducing work on a construction site, the work of coating the skeleton with a fireproof coating material is a factory. Required to be done in. However, if each surface of the frame of each building unit that is the frame of a unit-type building is coated with a fireproof coating material, it will take a lot of time and effort, so the building that will be adjacent to the construction site of the unit-type building In addition to coating the frame of the unit with a fireproof coating at the factory, connecting these fireproof coatings at the construction site, and storing multiple frameworks in a fireproof space with a fireproof coating to collectively form a fireproof structure. Is desirable.

[0004]

[Problems to be Solved by the Invention] However, in this way,
In order to connect the fire-resistant coating materials coated on these structures at the construction site in the factory so that the frameworks of adjacent building units are collectively made into a fire-resistant structure, the fire resistance between these fire-resistant coating materials at the construction site is required. When the caulking material or the like that the user has is filled, the work of filling the caulking material or the like must be performed at the construction site, and the work at the construction site is increased correspondingly, and the improvement of work efficiency cannot be achieved.

It is an object of the present invention that, when two building units are arranged adjacent to each other on a construction site, the fireproof coating material fixed to the frame of these building units can be automatically connected, and therefore, the construction can be performed. The purpose of the present invention is to provide a fireproof construction method for a unit-type building that can eliminate the need for on-site work.

[0006]

DISCLOSURE OF THE INVENTION The present invention is a fireproof construction method for a unit-type building in which frames of adjacent building units are connected to respective fireproof coating materials which are covered and fixed to these frames to form a fireproof structure. Therefore, in the factory, a refractory covering material having flexibility to the skeletons of the respective building units is provided as a first layer consisting of at least one surface of these skeletons
A surface and a second surface that is continuous with the first surface, and when the building units are arranged adjacent to each other on a construction site of a unit-type building, the second surface is covered and fixed. It is characterized in that the parts of the fireproof coating material are compressed and closely connected to each other.

In the above, the flexible fireproof coating material is made of, for example, rock wool, ceramic fiber or the like.

Further, the building units in which the fireproof coating materials connected to each other are covered by the frame may be adjacent to each other in the horizontal direction in the left, right, front and rear directions, or may be adjacent to each other in the vertical direction. The building unit also includes a roof unit.

Further, the frame of the building unit covered with the fireproof coating material connected to each other may be a beam or a pillar.

[0010]

In the factory, since the fireproof coating material fixed to the first and second surfaces of the frame of the building unit is flexible, the fireproof coating material can be compressed and deformed. At the construction site, when arranging the building units with the fireproof coating on each frame adjacent to each other, the parts of the fireproof coating fixed to the second surface of the building are compressed and brought into close contact with each other. The cladding will be connected at this point and these refractory claddings can be connected without any special work at the construction site.

[0011]

An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a framework of a building unit A to which the fireproof construction method according to this embodiment is applied. This skeleton is composed of four pillars 1 to 4 at four corners, four upper beams 5 to 8 connecting the upper ends of the pillars 1 to 4, and four lower beams connecting the lower ends of the pillars 1 to 4. 9 to 12, columns 1 to 4 are prismatic materials, and upper beams 5 to 8 and lower beams 9 to 12 are channel materials. The skeleton of the building unit A is assembled in a factory, and equipment such as floor materials and outer wall materials and construction materials are also attached to the skeleton in the factory.

FIG. 2 is a cross-sectional view showing the upper beams 5 and 7 of the building units A ₁ and A ₂ which are to be arranged horizontally adjacent to each other on the construction site of the unit type building.
The contact members 13 and 14 are joined to the openings of the upper beams 5 and 7, and the inner surfaces 5A and 7A of the upper beams 5 and 7 are formed by these contact members 13 and 14. In the factory, the upper beam 5,
7 from the lower part of the outer side surfaces 5B, 7B to the lower surfaces 5C, 7C,
Fireproof coating materials 15, 1 having flexibility on the inner side surfaces 5A, 7A
6 is wrapped around, and these fireproof coating materials 15 and 16 are
It is fixed by pins 17 with washers 17A driven into the upper beams 5, 7 and the abutting members 13, 14 from the outside of the fireproof coverings 15, 16. The fireproof coatings 15, 16 are upper beams 5, 7
Has a length extending beyond the inner side surfaces 5A, 7A, and the portions extending beyond the inner side surfaces 5A, 7A are extended portions 15A, 16A.
It is A.

The flexible fireproof coating materials 15 and 16 are
For example, it is made of Flex Guard (trade name, manufactured by Nichias Co., Ltd.), which is made of a composite material in which rock wool, ceramic fiber, non-woven fabric, and hexagonal wire mesh are sequentially laminated. The fireproof coatings 15 and 16 are provided over the entire length of the upper beams 5 and 7 in the longitudinal direction, and when only a part of the upper beams 5 and 7 in the longitudinal direction needs to have a fireproof structure, only a part of the upper beams 5 and 7 is fireproofed. Coverings 15 and 16 are provided.

As described above, in the factory, the fireproof coating materials 15 and 16 having the extension portions 15A and 16A are fixed to the upper beams 5 and 7 of the building units A ₁ and A ₂ by coating. 16 is the inner side surfaces 5A, 7 of the upper beams 5, 7.
A, the outer side surfaces 5B, 7B and the lower surfaces 5C, 7C are covered, and the outer side surfaces 5B, 7B are covered with the end portions 15B, 16B opposite to the extended portions 15A, 16A of the fireproof coverings 15, 16. There is.

In the above, the inner side surfaces 5A of the upper beams 5 and 7,
7A and the lower surfaces 5C and 7C are the first surface, and the outer surface 5
B and 7B are the second surface that is continuous at a right angle to this first surface.
Is a face.

FIG. 3 shows that at the construction site of a unit type building, the building units A ₁ and A ₂ are arranged adjacent to each other in the left-right direction, and the building units A ₃ , A ₄ are placed on the building units A ₁ , A _2. , Building units A ₁ and A ₃ ,
The state where A ₂ and A ₄ are vertically adjacent to each other is shown. Contact members 18, 19 are joined to the opening side of the lower beams 9, 11 of the building units A ₃ , A ₄ , and the inner surfaces 9A, 11A of the lower beams 9, 11 are formed by these contact members 18, 19. ing. Further, the lower beams 9 and 11 are joined to the refractory floor materials 22 and 23 made of lightweight aerated concrete (ALC) via the brackets 20 and 21, respectively.

[0017] In the construction site, when arranging the building unit A ₂ next to the building unit A _1, the end portion 15B of the refractory coating material 15 coated fixed on the beams 5 of the building unit A ₁
And the end portion 16B of the fireproof coating material 16 fixed to the upper beam 7 of the building unit A ₂ while being compressed, and brought into close contact with each other to connect the fireproof coating materials 15 and 16. As a result, the fireproof coating materials 15 and 16 that are individually covered and fixed to the upper beams 5 and 7 of the building units A ₁ and A ₂ are continuous at the construction site. Since the refractory covering materials 15 and 16 are flexible, these end portions 15B and 16B are surely brought into close contact with each other while being compressed.

After the building unit A ₃ is placed on the building unit A _{1 at} the construction site, the extending portion 15A that hangs downward from the fireproof coating material 15 is spread upward, and the extending portion 15A is extended to the building unit A. ₃ along the inner surface 9A of the lower beam 9 and along the lower surface of the refractory floor material 22.
Then, the lower beam 9 is attached by the pin 17 with the washer 17A.
9A and the lower surface of the refractory flooring 22. The same work is done on building unit A ₂ above building unit A _2.
16A of the extended portion of the fireproof coating material 16 after placing ₄
Also, do this extension 16A for building unit A
The inner surface 11A of the lower beam 11 of _{4 and} the lower surface of the fire-resistant flooring 23 are fixed along the inner surface 11A.

As a result, the upper beams 5 and 7 of the building units A ₁ and A ₂ and the lower beams 9 and 11 of the building units A ₃ and A _{4 which} are vertically adjacent to each other are continuously covered with the fireproof coating materials 15 and 16. become. Refractory coating material 24 with the same material as the fireproof coating materials 15 and 16 into the gap between the refractory flooring 22 and the building unit A ₄ of refractory flooring 23 of the building unit A ₃ is inserted, the refractory coating material 24 is fixed to the upper surface of the building unit a _3, under the a ₄ beams 9, 11 on the pin 17 of the washer 17A, the upper surface of the lower beam 9,11 is fireproofing. As a result, the four adjacent beams 5, 7, 9, 11 of the building units A _{1 to} A ₄ are connected to the fireproof coating material 15,
16 and 24 and the refractory floor materials 22 and 23, and the beams 5, 7 and 9 housed in this refractory space.
11 has a fireproof structure collectively.

According to this embodiment described above, the inner surfaces 5A and 7A, the lower surfaces 5C and 7C, and the second surfaces, which are the first surfaces of the upper beams 5 and 7 of the building units A ₁ and A _{2 which} are horizontally adjacent to each other, are formed. When the fireproof coating materials 15 and 16 having flexibility in the factory are coated and fixed to the outer side surfaces 5B and 7B, which are the above, when the building units A ₁ and A ₂ are arranged adjacent to each other on the construction site of a unit-type building, an upper beam is used. Since the end portions 15B and 16B of the fireproof coating materials 15 and 16 which are fixedly coated on the outer side surfaces 5B and 7B of 5 and 7 are brought into compression close contact with each other, in order to connect the fireproof coating materials 15 and 16 and make them continuous, It is not necessary to fill caulking material having fire resistance between them at the construction site, and when the building units A ₁ and A ₂ are arranged adjacent to each other, the fire resistant covering materials 15 and 16 can be automatically connected, so On-site work Omission can be, can be sufficiently achieve the original purpose of the unit-type building to try to reduce the rate of increase the work rate of the factory site work.

4 and 5 show another embodiment. In this embodiment, the fireproof coatings 35, 36 are at least two layers of composite material of outer materials 37, 39 and inner materials 38, 40. The outer materials 37, 39 and the inner materials 38, 40 are overlapped on the inner surfaces 5A, 7A and the lower surfaces 5C, 7C, which are the first surfaces of the upper beams 5, 7 of the building units A ₁ , A _2. While the fireproof coating materials 35 and 36 are fixedly coated,
The outer material 37, 39 is provided on the outer surface 5B, 7B which is the second surface.
Only the cover is fixed. In the case where the fireproof covering materials 35 and 36 are the above-mentioned flex guards, the outer material 37,
39 is a ceramic fiber, a non-woven fabric, a hexagonal wire mesh, and the inner materials 38 and 40 are rock wool.

Thus, the outer side surfaces 5B, 7 of the upper beams 5, 7 are
End portions 35 of the fireproof coating materials 35 and 36 which are fixedly coated on B
If B and 36B are used as a part of the fireproof covering materials 35 and 36, the thickness of these end portions 35B and 36B can be reduced, and as shown in FIG. 5, the upper beams 5 and 7 of the building units A ₁ and A ₂ are Even if the gap between them is small, the ends 35B and 36B can be reliably inserted into this gap while being in close contact with each other by compression.

In order to fix the flexible fireproof coating material to the beam or the like, a pin is preliminarily set up by welding on the beam or the like, and the fireproof coating material is pushed into the pin from the outside to fire the tip of the pin. Alternatively, the washer may be locked by projecting it from the surface of the covering material, inserting the washer into the protruding pin tip, and then bending the pin tip.

Further, in each of the above-mentioned embodiments, the first surfaces of the upper beams 5, 7 of the building units A ₁ , A ₂ coated with the fireproof coating material are the inner surfaces 5A, 7A and the lower surfaces 5C, 7C. However, the first surface may be one surface.

Further, in each of the above-mentioned embodiments, the frame of the building unit coated with the fireproof coating material which is connected to each other at the construction site is the upper beams 5 and 7 which are adjacent to each other in the horizontal direction. The beams may be adjacent to each other in the direction, or may be columns of the building unit.

[0026]

According to the present invention, when two building units, which are the constituent elements of a unit type building, are arranged adjacent to each other at a construction site, the fireproof coating materials that are fixed by coating at the factory are attached to the frameworks of these building units. It is possible to connect automatically, and it is not necessary to perform a special work at the construction site to make this connection, so that work efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a framework of a building unit.

FIG. 2 is a cross-sectional view showing a state in which a fireproof coating material is coated and fixed to a frame of a building unit in a factory.

FIG. 3 is a cross-sectional view showing a state in which the fireproof coating materials of FIG. 2 coated on the skeletons of the building units adjacent to each other on the left and right are connected to each other at the construction site of the unit type building.

FIG. 4 is a view similar to FIG. 2 showing a case of a fireproof coating material according to another embodiment.

5 is a view similar to FIG. 3 showing the case of the fireproof coating material of FIG. 4.

[Explanation of symbols]

A, A _{1 to} A ₄ Building unit 5 to 8 Upper beam which is a skeleton of the building unit 5A, 7A, 5C, 7C Inner side surface which is the first surface and lower surface 5B, 7B Outer surface which is the second surface 15, 16, 35, 36 Fireproof coating 15B, 16B, 35B, 36B The end of the fireproof coating fixed to the second surface.

Claims (1)

[Claims] 1. A fireproof construction method for a unit-type building, wherein the fireproof constructions of adjacent building units are connected to respective fireproof coverings fixed to these frameworks, and the fireproof construction method is applied to each unit at a factory. A fireproof coating material having flexibility to the frame of a building unit is coated and fixed on a first surface composed of at least one surface of these frames and a second surface continuous with the first surface, When arranging the building units adjacent to each other at a construction site of a type building, the unit type building is characterized in that the portions of the fireproof covering material fixedly covered by the second surface are compressed and closely connected to each other. Fireproof construction method.