JPH06220933A - Fire resistant structure - Google Patents

Abstract

PURPOSE:To lenhance the working efficiency required for a fire resistant coating. CONSTITUTION:A plurality of frames 5 on an external wall side of a unit building 1 constructed by connecting a plurality of building units 2 to each other are collectively surrounded by an external walling 6 and an internal walling 7 provided with fire resisting performance. The frame 5 on the external wall side of the unit building 1 is coated with the external walling 6 and internal walling 7 in a fire resisting state, so that there is no complexity in a fire resistant coating applied to the frame 5 separately, and work for the fire resistant coating is facilitated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fireproof structure and can be used in a unit building.

[0002]

BACKGROUND ART Conventionally, a unit building constructed by assembling a plurality of building units manufactured in a factory in advance at a construction site is known. In this unit building,
There is a merit that construction can be completed in a short period of time. In such a unit building, the skeleton of the building unit, which is a component of the building, is formed of metal columns and beams. If the building is an apartment house or exceeds a certain height,
It is necessary to provide a fireproof structure in which the frame is surrounded by a fireproof surface material.

[0003]

However, if a plurality of frameworks are individually coated with a refractory material, there is a problem that the coating work becomes complicated and the work efficiency is poor.

It is an object of the present invention to provide a fire resistant structure which improves work efficiency.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a plurality of frameworks on the outer wall side of a unit building constructed by joining a plurality of building units to each other are collectively formed by an outer wall material and an inner wall material having fire resistance. It is characterized by being enclosed.

[0006] Here, when the outer wall material and the inner wall material are divided for each building unit, a flexible fireproof joint material is interposed between the divided portions as the outer wall material and the inner wall material. Those connected to each other can be adopted. Further, the outer wall material and the inner wall material may be provided with windows, openings for entrances and exits, etc. in the central portions thereof.

[0007]

According to the present invention as described above, since a plurality of frameworks along the outer wall of the unit building are collectively fireproof coated with the outer wall material and the inner wall material, the complexity of individually coating the frameworks with the fireproof surface material is eliminated. . Therefore, the frame of the outer wall portion of the unit building can be easily subjected to the fireproof coating, and the efficiency of the work of performing the fireproof coating can be improved, thereby achieving the above object.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a plane of a unit building 1 according to this embodiment. The unit building 1 is constructed by assembling a plurality of building units 2 manufactured in a factory in advance at a construction site. The skeleton 3 of the building unit 2 is formed from a square cylindrical column 4 and a beam 5 having a U-shaped cross section.

The plurality of frames 3 are collectively surrounded by an outer wall material 6 and an inner wall material 7 having fire resistance, and the outer wall material 6 and the inner wall material 7 form a membrane type fire resistant structure. There is.

The outer wall material 6 is a face material made of calcium silicate having fire resistance. Of the outer wall materials 6, the one that is arranged on the left side surface of the unit building 1 in the figure is a normal outer wall material 6A that is not provided with openings, and the one that is arranged on the upper side surface in the figure is the center. Outer wall material for windows with an opening 6C in the part
It is 6B.

The inner wall material 7, like the outer wall material 6, is a face material made of calcium silicate. Of the inner wall materials 7, the unit building 1
What is arranged on the side surface on the left side of the figure is a normal inner wall material 7A in which no opening or the like is provided, and what is arranged on the upper side surface in the figure corresponds to the opening 6C of the outer wall material 6B It is an inner wall material 7B for a window in which an opening 7C is provided at a position.

The outer wall member 6 and the inner wall member 7 are installed in parallel with each other with a predetermined gap therebetween. Outer wall material
A fire-resistant surface material 8 made of calcium silicate is interposed between 6B and the inner wall material 7B to form closed inner peripheral portions of the openings 6C and 7C.

FIG. 2 is an enlarged view of a connecting portion A for linearly connecting the outer wall material 6 and the inner wall material 7 of the two building units 2 arranged horizontally. In the drawing, a mounting member 9 having a U-shaped cross section having a length corresponding to the height dimension of the outer wall material 6 and the inner wall material 7 is attached to each of the left and right side surfaces of the column 4 in the figure. The outer wall member 6 and the inner wall member 7 are fixed to the column 4 via the U-shaped mounting member 9. The back surface of each mounting member 9 is projected toward the adjacent building unit 2 so as to form the same surface as the end surfaces of the outer wall material 6 and the inner wall material 7. A continuous surface formed by the back surface of the mounting member 9 and the end surfaces of the outer wall material 6 and the inner wall material 7 is a butt surface 10 that is arranged to face each other when the two building units 2 are joined. A flexible fire resistant joint material 11 such as rock wool is interposed between the pair of butting surfaces 10.

FIG. 3 is an enlarged view of a connecting portion B for connecting the outer wall material 6 and the inner wall material 7 at the corner portion of the building unit 2 shown in FIG. In the corner portion of the building unit 2, mounting members 9A and 9B having a U-shaped cross section are bridged between the upper and lower beams 5. Of these, the mounting member 9B is fixed to the beam 5 via a receiving member 9C that projects from the beam 5 toward the indoor side. The outer wall member 6 is attached to the beam 5 via the attachment member 9A, and the inner wall member 7 is attached to the beam 5 via the attachment member 9B. In the portion of the pillar 4 that corresponds to the corner of the building unit 2, a corner panel 12 formed of lightweight cellular concrete and having a V-shaped cross section is installed along the side surface of the pillar 4.

The corner panel 12 has a stepped portion on the surface side of the end face.
It is one having 13. The end portion of the outer wall member 6 is arranged in the stepped portion 13 with a gap 14 having a predetermined size. The gap 14 is filled with a fire resistant joint material 15 such as rock wool having fire resistance. The outer wall members 6A and 6B extending to the corners of the building unit 2 are connected to each other through the corner panels 12. On the other hand, the inner wall members 7A and 7B are connected by simply fixing them while the other end face is in contact with the edge of one side face.

FIG. 4 is an enlarged view of a connecting portion C for linearly connecting the outer wall material 6 and the inner wall material 7 of the two building units 2 arranged vertically. The lower end of the outer wall member 6 in the upper-floor building unit 2 is fixed to the beam 5 below the building unit 2 via a mounting member 16 having a U-shaped cross section. The bottom surface of each of the outer wall member 6, the mounting member 16 and the beam 5 is aligned in height level to form a continuous surface 17. The upper end of the outer wall material 6 in the lower-floor building unit 2 is
Like the lower end, it is fixed to the upper beam 5 of the building unit 2 via a mounting member 16 having a U-shaped cross section. Outer wall material 6,
The upper surface of each of the mounting member 16 and the beam 5 is aligned in height level to form a continuous surface 18.

The lower end of the inner wall material 7 in the upper floor building unit 2 is fixed to the upper surface of a floor base material 20 made of lightweight cellular concrete via a mounting member 19 having a U-shaped cross section.
A supporting member 21 having a U-shaped cross section is projected from the lower beam 5 of the building unit 2 toward the indoor side. On the other hand, a mounting member 22 extending in the vertical direction is fixed to the back surface of the inner wall member 7. The lower end of the inner wall member 7 is also fixed by joining the lower end of the mounting member 22 to the receiving member 21. In addition,
The lower surface 23 of the floor base material 20 with which the lower end of the inner wall material 7 abuts has the same height level as the continuous surface 17. The beam 5 on the upper side of the lower-floor building unit 2 is provided with a receiving member 24 having a U-shaped cross section and protruding toward the indoor side. Meanwhile, the same building unit 2
A mounting member 25 extending in the vertical direction along the back surface is fixed to the inner wall member 7. The upper end of the inner wall member 7 is fixed to the beam 5 by joining the lower end of the mounting member 25 to the receiving member 24. An edge member 26 having a U-shaped cross section is provided at the upper end of the mounting member 25. The upper surface 27 of the edge member 26 has the same height level as the continuous surface 18.

Between the upper continuous surface 17 and the lower continuous surface 18,
Further, flexible fire-resistant joint materials 28, 29 such as rock wool are interposed between the lower surface 23 of the floor base surface material 20 and the upper surface 27 of the edge member 26. By joining the two building units 2 to each other, the upper and lower outer wall members 6 and inner wall members 7 are automatically connected to each other through the fireproof joint materials 28 and 29 and the floor base material 20.

In this embodiment, when the building unit 2 is manufactured in the factory in advance, the outer wall material 6, the inner wall material 7, the corner panel 12 and the like are assembled to the building unit 2 and are mutually attached. One of the pair of building units 2 to be joined has a fireproof joint material on the butt surface 10 and the continuous surface 18.
Install 11,28,29. Then, by joining the plurality of building units 2 at the construction site, the outer wall material 6 and the inner wall material 7 are connected to each other to complete the fire resistant structure.

According to this embodiment as described above, the following effects can be obtained. That is, the plurality of frames 3 along the outer wall portion of the building unit 2 together with the outer wall material 6 having fire resistance performance
Further, since the inner wall member 7 is fireproof coated, the complexity of individually providing the frame 3 with the fireproof coating is eliminated, and the work of performing the fireproof coating is facilitated and the work efficiency can be improved.

Further, since flexible fireproof joint materials 11, 28, 29 are provided at the connecting portions A, C of the outer wall material 6 and the inner wall material 7, the building units 2 are joined to each other. Therefore, even if there is some error in the installation position of the building unit 2, this error is allowed by the deformation of the refractory joint materials 11, 28, 29, so that the building unit 2 can be easily joined. Even if there is a gap between the outer wall material 6 and the inner wall material 7, the fire resistant joint material 11, 28, 29 closes the gap, so that excellent fire resistance can be secured.

Further, in manufacturing the building unit 2 in the factory, one of the pair of building units 2 to be joined to each other is preliminarily factory-fitted with the fireproof joint material 11, 28 on the butt surface 10 or the continuous surface 18. Since 29 are attached in advance, if the building units 2 are joined at the construction site, the outer wall material 6 and the inner wall material 7 of each building unit 2 are automatically connected. For this reason,
No additional work is required to form the fireproof structure, and there is no need to increase the work on the construction site.

It should be noted that the present invention is not limited to the above-mentioned one embodiment, but also includes the following modifications and the like. That is, the outer wall material is not limited to one made of calcium silicate, but may be another material such as one made of lightweight cellular concrete.

The inner wall material is not limited to the one made of calcium silicate, but may be another material such as glass fiber reinforced gypsum board or lightweight cellular concrete.

Further, the beams and columns forming the frame are not limited to the columns 4 having a quadrangular cross section and the beams 5 having a U-shaped cross section, but may be, for example, columns or beams having an H-shaped cross section. The shape may be appropriately selected upon implementation.

The material of the fireproof joint material 11, 28, 29 is not limited to rock wool, but may be, for example, ceramic fiber or the like, that is, any material having both flexibility and fire resistance. In addition, fire-resistant joint material 11,28,
The number 29 is not limited to one piece that is attached to one of the two building units 2 to be joined in advance in the factory, but is attached individually to each of the building units 2 in advance in the factory and is integrated by joining the building units 2. It may be of a two-part type.

[0027]

As described above, according to the present invention, the work efficiency of the fireproof coating can be improved.

[Brief description of drawings]

FIG. 1 is a plan view showing an entire unit building according to an embodiment of the present invention.

2 is an enlarged plan view showing a connecting portion A of FIG. 1. FIG.

3 is an enlarged plan view showing a connecting portion B of FIG. 1. FIG.

FIG. 4 is an enlarged elevational view showing a connecting portion C of two building units arranged one above the other.

[Explanation of symbols]

 1 Multiple building units 2 Building unit 3 Frame 4 Column that is frame 5 Beam that is frame 6 Outer wall material 7 Inner wall material

Claims (2)

[Claims] 1. A fire resistance characterized in that a plurality of frameworks on the outer wall side of a unit building constructed by joining a plurality of building units to each other are collectively surrounded by an outer wall material and an inner wall material having fire resistance performance. Construction. 2. The fire resistant structure according to claim 1, wherein the outer wall material and the inner wall material are divided for each unit building, and a flexible fire resistant joint material is interposed between the divided portions. Fireproof structure characterized by being connected to each other in a state.