JPH0657842A - Fire resistant construction method for unit type building - Google Patents

Abstract

PURPOSE:To automatically connect fire resistant cover materials put over and fixed to building units in a factory to each other at the time of arranging the two building units adjacent to each other in a building site. CONSTITUTION:Flexible fire resistant cover materials 15, 16 are put over and fixed to the upper beams 5, 7 of building units A1, A2 in a factory, and these end parts 15B, 16B are protruded from the lower surfaces 5C, 7C of the beams 5, 7 to the outside surface 5B, 7B side. When the building units A1, A2 are arranged adjacent to each other in a building site, the protruding end parts 15B, 16B of the fire resisting cover materials 15, 16 are closely adhered to each other while compressing them.

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, coating each surface of the frame of each building unit, which is the frame of the unit building, with fire-resistant coating material takes a lot of time and labor, and therefore, it is necessary to use the adjoining structure on the construction site of the unit building. The frame of the building unit will be covered with a fireproof coating at the factory, these fireproof coatings will be connected at the construction site, and multiple frames will be stored in a fireproof space with the fireproof coating at once. It is desirable to have a fireproof structure.

[0004]

[Problems to be Solved by the Invention] However, in this way,
In order to connect the fireproof coverings of these buildings at the construction site so that the frameworks of adjacent building units are collectively made into a fireproof structure, there is fireproofness between these coverings at the construction site. When the caulking material is filled, the filling work of the caulking material must be performed at the construction site, and the work at the construction site increases 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. It is to provide a fireproof construction method for a unit-type building that enables the work on site to be omitted.

[0006]

A first aspect of the present invention is a unit type building in which a frame of an adjacent building unit is connected to a fireproof covering material fixed to the frame of the building unit to form a fireproof structure. In the factory, a fireproof coating material having flexibility is coated and fixed on at least one surface of the skeleton of each of the building units in the factory by projecting the end portion of the fireproof coating material from the surface, and fixing the unit. When the building units are arranged adjacent to each other at the construction site of a type building, the projecting end portions of the fireproof covering are compressed and closely connected to each other.

A second aspect of the present invention is a fireproof construction method for a unit-type building, wherein the frames of adjacent building units are connected to respective fireproof coating materials fixed to the frames to form a fireproof structure. , In the factory, at least one surface of the frame of one of the building units of the building unit is covered with a first fire-resistant coating material having flexibility by fixing the end portion of the fire-resistant coating material by projecting from the surface. ,
A second fire-resistant covering material having flexibility is covered and fixed on a first surface composed of at least one surface of the skeleton of the other building unit and a second surface continuous with the first surface. When arranging the building units adjacent to each other at a building construction site, the projecting end portion of the first refractory covering material and the portion of the second refractory covering material covered and fixed to the second surface are compressed and closely connected to each other. It is characterized by doing.

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

Further, the frame of the building unit for covering the fireproof coverings connected to each other at the construction site may be a beam or a pillar, and the connection direction of the fireproof coverings connected to each other may be horizontal. Alternatively, it may be in the vertical direction. Further, the building unit also includes a roof unit.

[0010]

Since the fireproof covering material has flexibility, when the building units are arranged adjacent to each other at the construction site of the unit type building, in the first invention, the fireproof coverings fixed to the frame of these building units at the factory are provided. The projecting ends of the covering material are in close contact with each other while being compressed, and, in the second invention, the projecting end portion of the first refractory covering material that is factory-covered and fixed to the framework of one building unit and the other building unit. The portion of the second surface of the second refractory coating material that is fixed to the framework by the factory is in close contact while being compressed, and the fireproof coating material does not have to be filled with caulking material having fire resistance between them at the construction site. The materials can be reliably connected to each other.

[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 made of prismatic materials, and upper beams 5 to 8 and lower beams 9 to 12 are made of 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 at 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,
The flexible fire-resistant coating materials 15 and 16 are wound around the lower surfaces 5C and 7C and the inner side surfaces 5A and 7A of 7, and these fire-resistant coating materials 15 and 16 are provided from the outside of the fire-resistant coating materials 15 and 16 to the upper beam 5 , 7 and the abutting members 13, 14 are fixed by pins 17 with washers 17A. The refractory coating materials 15 and 16 have a length extending beyond the inner side surfaces 5A and 7A of the upper beams 5 and 7, and the portions extending beyond the inner side surfaces 5A and 7A are extension portions 15A and 16A. Further, the end portions of the fireproof coverings 15 and 16 on the side opposite to the extended portions 15A and 16A are arranged from the lower surfaces 5C and 7C of the upper beams 5 and 7 to the outer surface 5B,
The projecting ends 15B and 16B project toward the 7B side.

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.

FIG. 3 shows that at the construction site of a unit type building, building units A ₁ and A ₂ are arranged adjacent to each other in the left-right direction, and building units A ₃ and A ₄ are placed on top of these building units A ₁ and A _2. The 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.

When arranging the building unit A ₂ next to the building unit A _{1 at} a construction site, the projecting end portion 15 of the fireproof covering material 15 fixed to the upper beam 5 of the building unit A ₁ by covering is fixed.
B and the projecting end portion 16B of the fireproof covering material 16 which is fixed to the upper beam 7 of the building unit A ₂ by compression are brought into close contact with each other, thereby connecting the fireproof covering materials 15 and 16.
As a result, in the factory, the upper beams 5, 7 of the building units A ₁ , A ₂
The continuity of the individually coated fire resistant coatings 15, 16 will be obtained at the construction site.

At the construction site, after the building unit A ₃ is placed on the building unit A ₁ , the extending portion 15A that hangs downward from the fireproof coating 15 is spread upward, and the extending portion 15A is expanded. Inner surface 9A of lower beam of A ₃
Along with the lower surface of the refractory floor material 22. Then, it is fixed to the inner surface 9A of the lower beam 9 and the lower surface of the refractory floor material 22 by the pin 17 with the washer 17A.
The same work as this is performed after the building unit A ₄ is placed on the building unit A ₂ and then the extension portion 1 of the fireproof covering 16 is placed.
6A is also performed, and the extension portion 16A is fixed along the inner surface 11A of the lower beam 11 of the building unit A _{4 and} the lower surface of the refractory flooring 23.

As a result, the building units A vertically adjacent to each other
The upper beams 5 and 7 of ₁ , A ₂ and the lower beams 9 and 11 of the building units A ₃ and A ₄ are continuously covered with the same fireproof coating materials 15 and 16. Fireproof flooring 22 of building unit A ₃
And the fire-resistant floor material 23 of the building unit A ₄ in the gap between the fire-resistant material 15 and 16 and the fire-resistant material 24.
Is inserted, and the fireproof covering material 24 is fixed to the upper surfaces of the lower beams 9 and 11 of the building units A ₃ and A _{4 by} the pin 17 with the washer 17A. As a result, the building units A _{1 to} A
_{The four} adjacent beams 5, 7, 9, 9 will be surrounded by the fireproof covering materials 15, 16, 24 and the fireproof floor materials 22, 23, and the beams 5 housed in this fireproof space , 7, 9, 11 collectively have a fireproof structure.

According to the above-described embodiment, the adjacent portions are arranged in the left-right direction.
Building Unit Unit A₁, A ₂Work on upper beams 5 and 7
Fireproof coating materials 15 and 16 that are fixed and fixed at the construction site
, The protruding ends 15B and 16B are compressed and
Can be automatically connected by the fireproof coating 1
5 and 16 have flexibility, so make this connection securely
In addition to being able to
Fill caulk at construction site to connect
You don't have to do any work and you can save yourself some work at the construction site
Therefore, increase the work rate in the factory and increase the work rate in the field.
To meet the original purpose of a unit building
Can be achieved in minutes.

4 and 5 show another embodiment. In this embodiment, the upper beam 5 of the building unit A ₁ has a flexible first
A fire-resistant coating material 35 is coated and fixed, and a flexible second fire-resistant coating material 36 is coated and fixed to the upper beam 7 of the building unit A ₂ . The end portion 35B of the first refractory covering material 35 is a protruding end portion that protrudes from the lower surface 5C of the upper beam 5 toward the outer side surface 5B, as in the above-described embodiment. On the other hand, the second refractory coating 36 is a second surface which is fixed to the inner side surface 7A and the lower surface 7C which are the first surface of the upper beam 7 and is continuous at a right angle to the first surface. The outer surface 7B is also covered and fixed, and the end portion 36B of the second refractory coating material 36 is the outer surface 7B.
Has been reached and fixed.

As described above, the building units A ₁ and A _{2 in} which the first and second refractory coating materials 35 and 36 are fixed to the upper beams 5 and 7 in the factory are arranged adjacent to each other at the construction site as shown in FIG. In doing so, the protruding end portion 35B of the first refractory covering material 35 and the end portion 36B of the second refractory covering material 36 are brought into close contact while being compressed.
Also according to this embodiment, the fire-resistant covering material 35 individually covered and fixed to the upper beams 5, 7 of the building units A ₁ , A _{2 at} the factory,
36 can be automatically connected at the construction site and, in this embodiment, the end 36 of the second refractory covering 36.
B is inserted between the upper beams 5 and 7 of the building units A ₁ and A ₂ and comes into closer contact with the end portion 35B of the first refractory covering material 35 more reliably, so that the first and second refractory coverings are provided. Material 35,3
6 connectivity can be ensured.

In order to fix the flexible fireproof coating material to the beam or the like, a pin is preliminarily set up on the beam or the like by welding, and the fireproof coating material is pushed into the pin from the outside to fire the tip of the pin. 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.

In each of the above embodiments, the fireproof coating material 1
5,16,35,36 are inner surfaces 5A, 7A of the upper beams 5,7
Although the lower surfaces 5C and 7C are covered and fixed, the number of the surfaces of the beam covering the fireproof covering material may be one.

Further, in each of the embodiments, the building units, in which the covering materials connected to each other at the construction site are fixed to the beams by coating, are arranged horizontally adjacent to each other, but the present invention is arranged vertically adjacent to each other. It can also be applied to beams of building units.

The frame of the building unit to which the fireproof coating material is fixed is not limited to the beam, but may be a pillar, for example.

[0025]

According to the present invention, when two building units are arranged adjacent to each other on a construction site, it is possible to automatically connect the fireproof covering material fixed to the frame of these building units at the factory. Therefore, the work of filling a caulking material having fire resistance between these fireproof coating materials at the construction site can be made unnecessary, and the work at the construction site can be omitted.

[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 are connected to each other when building units are arranged adjacent to each other on a construction site.

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 End of fireproof coating

Claims (2)

[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. At least one surface of the frame of the building unit is covered with a flexible fireproof coating material by projecting the end of the fireproof coating material from the surface and fixed, and each of the building units is constructed at a construction site of a unit type building. A fireproof construction method for a unit-type building, characterized in that, when the fireproof coverings are arranged adjacent to each other, the projecting end portions of the fireproof covering material are compressed and closely connected to each other. 2. A fireproof construction method for a unit-type building, wherein a frame of adjacent building units is connected to respective fireproof coating materials fixed to these frames to form a fireproof structure. Of the units, at least one surface of the frame of one building unit is covered with a flexible first fire-resistant coating material by projecting an end portion of the fire-resistant coating material from the surface, and is fixed to the other building unit. At the construction site of a unit-type building, a second fireproof coating material having flexibility is covered and fixed on a first surface composed of at least one surface of a skeleton and a second surface continuous with the first surface. When the building units are arranged adjacent to each other, the projecting end portion of the first refractory covering material and the portion of the second refractory covering material, which is covered and fixed to the second surface, are compressed and closely connected to each other. This Fire-resistant construction methods of unit-type building which is characterized in.