JP2572916B2 - How to install fireproof zone - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for mounting a fireproof zone so as to close a gap (joint) between adjacent buildings.

[0002]

2. Description of the Related Art Conventionally, a fireproof zone has been disclosed in Japanese Utility Model Laid-Open No. 3-86.
No. 906 is disclosed. This is commercially available as a finished product having a certain width as shown in FIG. 9, and the refractory zone has a band shape between two metal sheets 1 and 1 as shown in FIG. In this embodiment, both ends of both metal sheets 1 and 1 are fixed by welding or the like.

As shown in FIG. 11, such a refractory zone is to be attached to both buildings 3 and 4 which are built at both ends by using screws. As the refractory 2, a nonwoven fabric of inorganic fibers such as glass wool and rock wool is used.

[0004]

Since the buildings 3 and 4 swing due to an earthquake, a storm, or the like, the fire zone is attached with a slack so as to absorb the swing of the buildings 3 and 4. However, the loose fire zone is shown in Fig. 1.
As shown in FIG. 1, the arches 3 and 4 bend in an arc shape. When the refractory zone bends in an arc shape, a difference in arc length occurs between the inner side and the outer side, so that the wrinkle as shown in FIG. Thus, a mountain-like portion and a valley-like concave portion alternately appear.

Then, since the valley-shaped concave portion of the inner metal sheet compresses the refractory 2, the thickness of the refractory 2 becomes thinner at that portion, and the heat insulating effect is reduced. There is a risk that the intended purpose of preventing the damage will be impaired.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is that even when the metal sheet is bent in an arc shape, the inner metal sheet may be wrinkled due to the difference in the arc length between the inner and outer sides. It is an object of the present invention to provide a method for mounting a refractory zone, which does not have a risk of refractory being partially compressed and reduced in thickness.

[0007]

In order to achieve the above-mentioned object, a method of mounting a fire-resistant zone according to the present invention comprises the steps of: providing a first metal sheet having projections on its surface on both buildings which are built close to each other; both sides, the first step of attaching a state which gave slack metal sheet, the step of the refractory of the flexible strip in the so that superimposed on the first metal sheet is held by piercing the projection, Projections on the surface of the first metal sheet
Refractory the second metal sheet provided at different positions, the projections of the second metal sheet so that superimposed on the refractory and
A step of piercing and holding an object, and a step of attaching both sides of the second metal sheet to the two buildings in order, so that a refractory is sandwiched between the first and second metal sheets. A fire zone is attached so as to close a gap between the two buildings.

[0008]

The second metal sheet to be attached last is superimposed on the refractory already superimposed and held on the first metal sheet. For this reason, as for the second metal sheet, the length between both sides attached to both buildings can be set according to the actual arc length of the refractory, so that the metal sheet does not wrinkle.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. This embodiment is applied to a fire-resistant zone attached so as to cover a joint (hereinafter referred to as a joint) between two buildings that are built close to each other from the side.

First, as shown in FIG. 1, a refractory zone of this embodiment includes a first metal sheet 11, a refractory 12, a wire mesh 13,
And the second metal sheet 14.

First and second metal sheets 11 and 1
4 is made of aluminum or stainless steel and has a refractory 1
Needle-like projections 11a and 14a are attached to the surface in contact with 2 by welding or the like. The projections 11a and 14a of the two metal sheets 11 and 14 are provided at different positions to prevent the projections 11a and 14a from coming into contact with each other when the projections 11a and 14a pierce the refractory 12.

The refractory 12 is formed by forming inorganic fibers such as glass wool and rock wool into a nonwoven fabric.

Now, in order to mount the above-mentioned components between the two buildings 15 and 16 shown in FIG. 2, first, as shown in FIG. And in the joint 17 between
Of both sides of the metal sheet 11 of both buildings 15 and 16
Is attached to the side surface of the device with screws 18. In this case, the first
The metal sheet 11 is mounted such that the surface provided with the protrusion 11a is on the inner side of the arc.

Thereafter, as shown in FIG. 3, the refractory 12 is bent in an arc shape, and the refractory 12 is inserted into the projection 11a of the first metal sheet 11 so as to pierce the first metal sheet 1.
1 on the inner surface side. The refractory 12 is pierced by the projection 11a, so that it does not fall off the first metal sheet 11 without being attached to both the buildings 15 and 16.

Next, as shown in FIG. 4, a wire mesh 13 is applied to the arc-shaped inner surface of the refractory 12, and both ends of the wire mesh 13 are attached to the side surfaces of both buildings 15 and 16 by screws 19. Since the refractory 12 is made of short fibers such as glass wool and rock wool, the wire mesh 13 is attached to prevent the fibers from coming off and scattering as much as possible.

Finally, as shown in FIG. 5, the second metal sheet 14 is bent in an arc shape such that the surface on which the projections 14a are provided is on the refractory 12 side, and the projections 14a are pierced into the refractory 12. The second metal sheet 14 is overlaid on the refractory 12. Then, both ends of the second metal sheet 14 are attached to the side surfaces of the buildings 15 and 16 by screws 20.

The screws 19 and 20 for attaching the metal mesh 13 and the second metal sheet 14 are preferably constituted by stepped screws or the like in order to prevent both ends of the refractory 12 from being compressed.

As described above, according to the present embodiment, the second metal sheet 14 is bent in an arc shape and overlaps the refractory 12 held on the first metal sheet 11.
The second metal sheet 14 can match the actual inner arc length of the refractory 12. Therefore, the refractory 12
Even if there is a difference in the arc length between the inner and outer surfaces, the inner metal sheet 14 is replaced by the outer metal first metal sheet 1 by the difference.
The second metal sheet 14 can be attached with a shorter length than the first metal sheet 14, and there is no possibility that the second metal sheet 14 is wrinkled. As a result, refractory 1
There is no fear that the second metal sheet 2 is partially compressed by the second metal sheet 14 to reduce the thickness, thereby impairing the fire prevention effect.

Incidentally, when the refractory 12 is bent in an arc shape, the refractory 12 itself produces a difference in the arc length on both the inner and outer surfaces. Therefore, there is no danger that the arcuate outer surface side extends in the circumferential direction and the outer peripheral side shrinks in the circumferential direction, so that no peaks or valleys are generated, or even if they are generated, the degree is small and the waveform is largely deformed.

The first metal sheet 1 to be attached first
1 is provided with the projection 11a, and by sticking the refractory 12 into the projection 11a, the refractory 12 is held until the wire mesh 13 is attached between the buildings 15 and 16 and the refractory 12 is pressed down. Therefore, there is no need to hold and hold the refractory 12 with a hand or the like, and the work can be easily performed.

Further, in this embodiment, since the projections 14a are also provided on the second metal sheet 14 to be attached later, the projections 14a are pierced into the refractory 12 so that the second
The metal sheets 14 of the two buildings 15 and 16 are screwed together.
Can be temporarily held until it is fixed to the second metal shell.
The seat 14 is fixed to both buildings 15 and 16 with screws 20.
After that, the refractory 12 is connected to the protrusions 1 of the two metal sheets 11 and 14.
By holding the refractory 12 from both sides at 1a and 14a, the refractory 12 can be more reliably and stably supported so that the refractory 12 does not hang between the two metal sheets 11 and 14 by its own weight.

In this case, the projections 11a and 14a are provided on the two metal sheets 11 and 14 at different positions so as not to contact each other.
There is no possibility that the heat will be transmitted from one metal sheet to the other metal sheet via the protrusions 11a and 14a, which is effective in preventing spread of fire or spread of fire.

FIG. 6 shows a second embodiment of the present invention. The same parts as those in the first embodiment are denoted by the same reference numerals and different parts will be described.

A rail member 21 is fixed to one of the buildings 15 and 16, for example, the building 15 on the left side in the figure. On the other hand, the slide portion 1 that engages with the rail member 21 is provided at the left end of the first metal sheet 11 in the drawing.
1b is formed.

The slide portion 11b of the first metal sheet 11 is slidably engaged with and held by the rail member 21, and the left end of the first metal sheet 11 is attached to the side wall of the building 16 with screws 18. Have been. The left ends of the wire mesh 13 and the second metal sheet 14 are fixed to the side walls of both buildings 16 by screws 19 and 20, and the left ends are attached to the first metal sheet 11 by screws 19 and 20. I have.

With this configuration, the same effect as that of the first embodiment can be obtained. In addition, the left end of the first metal sheet 11 is vertically connected to the building 15 via the rail member 21. Because it becomes a form slidably attached to
Even if both buildings 15 and 16 move up and down,
The movement can be favorably absorbed.

FIG. 7 shows a third embodiment of the present invention. The difference from the first embodiment is that the first metal sheet 11 is attached first and the second metal sheet is attached last. In this embodiment, the first metal sheet 11 to be attached first is attached to, for example, the inner side of the side walls of both buildings 15 and 16, and the remaining refractory 12, wire mesh 13 and second metal The seat 14 is attached to the outer surface of the side wall. Even with such a configuration, the same effect as in the first embodiment can be obtained.

Of course, on the contrary, the first metal sheet 11 is attached to the outer surface of the side wall of both buildings 15 and 16, and the remaining refractory 12, the wire mesh 13 and the second metal sheet 14 are attached to the inner surface of the side wall. Needless to say, this is acceptable.

The present invention is not limited to the embodiment described above and shown in the drawings.
The projections provided on and 14 are not limited to needle-like projections,
As in the fourth embodiment shown in FIG. 8, a triangular protruding piece 22 may be attached by welding, or a projection 14a of a second metal sheet 14 attached later.
Alternatively, the wire mesh 13 may not be necessarily provided, and may be applied to a case where a fire-resistant zone is attached between floor walls of each floor of both buildings 15 and 16. It can be implemented.

[0030]

According to the method for mounting a fireproof zone of the present invention described above, both sides of the first metal sheet provided with the protrusions on one surface are placed in a state in which the first metal sheet has slack. A step of attaching to both buildings, a step of stacking a strip-shaped refractory on the first metal sheet and holding the protrusions, and a step of stacking a second metal sheet on the refractory and attaching both sides of the second metal sheet to both buildings Since the mounting process is performed in order, the projection is provided on the first metal sheet that is firstly mounted between the two buildings, so that the refractory does not fall off or move due to the projection. And the width of the second metal sheet to be attached last can be set according to the actual arc length of the refractory, so that the metal sheet does not wrinkle, Refractory It is divided compressed with no risk of reduced thickness. Also, the second metal sheet has projections
Thus, the second metal sheet can be temporarily held on the refractory,
Refractory from both sides with projections of first and second metal sheets
Can be held to prevent it from sagging,
Means that the projections of the first and second metal sheets are positioned relative to each other.
Since they are provided differently, they cannot touch each other.
This is an excellent effect.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a refractory band showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing an attached state of a first metal sheet.

FIG. 3 is a perspective view showing an attached state of a refractory.

FIG. 4 is a perspective view showing an attached state of a wire net;

FIG. 5 is a perspective view showing an attached state of a second metal sheet.

FIG. 6 is a cross-sectional plan view showing a second embodiment of the present invention in a completed form;

FIG. 7 is a view corresponding to FIG. 6, showing a third embodiment.

FIG. 8 is a view corresponding to FIG. 2, showing a fourth embodiment.

FIG. 9 is a perspective view of a conventional fire belt.

FIG. 10 is a partially enlarged perspective view of a fireproof zone.

FIG. 11 is a cross-sectional plan view showing an attached state.

FIG. 12 is a partially enlarged cross-sectional plan view.

[Explanation of symbols]

11 is a first metal sheet, 11a is a protrusion, 12 is a refractory, 13 is a wire mesh, 14 is a second metal sheet, 14a is a protrusion
References 15 and 16 denote buildings, 17 denotes joints, 21 denotes rail members, and 22 denotes projections (projections).

Claims (1)

(57) [Claims] 1. A step of attaching both sides of a first metal sheet having projections on its surface to both buildings built close to each other in a state where the first metal sheet has slack. sex certain strip of refractory Ru superimposed on said first metal sheet
To pierce and hold the projections ,
The projection is different in position from the projection of the first metal sheet.
A second metal sheet provided Te, so that superimposed on the refractory
Piercing the projection of the second metal sheet into the refractory and holding
The step of attaching, the step of attaching both sides of the second metal sheet to the two buildings in order, to form a refractory zone configured by sandwiching a refractory between the first and second metal sheets, A method for mounting a fire-resistant zone, wherein the mounting is performed so as to close a gap between the two buildings.