JP6877279B2 - Interlayer refractory support metal fittings and interlayer refractory support method - Google Patents

Description

The present invention relates to an interlayer refractory support metal fitting and an interlayer refractory material support method, and in particular, an interlayer refractory support metal fitting and an interlayer refractory support metal fitting for supporting a refractory material filled in a gap formed between an end face of a floor slab and a wall panel. The present invention relates to a method for supporting an interlayer refractory material.

Conventionally, in high-rise buildings, an outer wall construction method has been adopted in which a non-bearing wall called a curtain wall is fitted into a frame such as a base or a pillar so as not to impose a load on the building.

In this outer wall construction method, for example, a joint between members and a predetermined gap is formed between the floor and the outer wall, and it is necessary to close this gap. In addition, when a fire breaks out, the fire spreads from this gap to the upper and lower floors, so the gap is a weak point in terms of fire resistance.

Therefore, a fall prevention hardware is inserted between the floor and the outer wall, and a fireproof interlayer material having a waterproof fireproof film on the upper surface is brought into close contact with the floor and the outer wall to close the gap. The method is adopted (see, for example, Patent Document 1).

FIG. 8 is a diagram showing a refractory interlayer material arranged between a floor slab and a wall panel of a building.
As shown in FIG. 8, the refractory interlayer material 30 is inserted into the interlayer gap G between the floor slab 10 and the wall panel 20 of the building. The refractory interlayer material 30 is supported by a plurality of support metal fittings 40 arranged at intervals in the longitudinal direction of the interlayer gap G.

The support metal fitting 40 includes an upper surface support portion 41 arranged on the upper surface of the floor slab 10, a hanging portion 42 hanging from the upper surface supporting portion 41 along the outer surface of the floor slab 10, and a wall panel 20 direction from the lower end of the hanging portion 42. It is composed of a tension portion 43 that bends to the surface and the tip of which comes into contact with the wall panel 20.

The core material 31 is press-fitted into the interlayer gap G, and the upper surface covering material 32 is adhered to the surfaces of the floor slab 10 and the wall panel 20 via an adhesive, so that the interlayer gap G can be completely closed.

Since the refractory interlayer material 30 is only adhered to the surfaces of the floor slab 10 and the wall panel 20 via an adhesive, for example, when the floor is extremely wet with rainwater or the like, stable fixing is not always possible. Power is not always available.

Therefore, by arranging the support metal fittings 40 at intervals in the longitudinal direction of the interlayer gap G and using the tension portion 43 provided in the support metal fittings 40, the refractory interlayer material 30 can be supported from the lower surface side, so that stable fire resistance can be achieved. The fixing force of the interlayer material 30 can be obtained.

As shown in FIG. 8, by installing a plurality of support metal fittings 40 in the longitudinal direction of the interlayer gap G, it is possible to stably fix the fireproof interlayer material 30, but the refractory from the lower side of the interlayer gap G is fireproof. The interlayer material 30 is exposed.

In this state, when a fire breaks out on the lower floor, the exposed refractory interlayer material 30 is directly exposed to the fire caused by the fire, so that the refractory time may be shortened. Therefore, in order to prevent the refractory interlayer material 30 from being directly exposed to the fire from the lower floor in the event of a fire, a metal plate material is passed from the floor slab 10 to the wall panel 20 in the interlayer gap G, and the refractory interlayer material is placed on the metal plate material. By arranging 30, a fire-resistant interlayer material support metal fitting for the purpose of improving the fire resistance time has been developed (see, for example, Patent Document 2).

FIG. 9 is a diagram showing a refractory interlayer material and a metal plate material arranged between a floor slab and a wall panel of a building.
As shown in FIG. 9, the refractory interlayer material 30 is inserted into the interlayer gap G between the floor slab 10 and the wall panel 20 of the building. The refractory interlayer material 30 is supported by a plurality of support metal fittings 50 and a metal plate material 60 arranged at intervals in the longitudinal direction of the interlayer gap G.

The support metal fittings 50 include an upper surface support portion 51 arranged on the upper surface of the floor slab 10, a hanging portion 52 hanging from the upper surface supporting portion 51 along the outer surface of the floor slab 10, and a wall panel 20 direction from the lower end of the hanging portion 52. It is composed of a tension portion 53 that bends to the wall panel 20 and whose tip contacts the wall panel 20, and a plate material support portion 54 for supporting the metal plate material 60 provided on the hanging portion 52.

The support metal fitting 50 is installed on the floor slab 10, and the floor slab 10 side portion of the metal plate material 60 is supported by the plate material support portion 54 provided on the hanging portion 120 of the support metal fitting 50, and the wall panel 20 of the metal plate material 60. The side is supported by the wall panel 20. As a result, the interlayer gap G between the end surface of the floor slab 10 and the wall panel 20 is closed by the metal plate material 60.

By installing the refractory interlayer material 30 on the metal plate material 60 that closes the interlayer gap G, even if a fire occurs on the lower floor, the fire caused by the fire does not come into direct contact with the refractory interlayer material 30. Therefore, the refractory time of the refractory interlayer material 30 can be significantly lengthened.

JP-A-2002-242334 Japanese Unexamined Patent Publication No. 2010-261232

However, the conventional indicator fitting has two major problems: a problem of poor manufacturing efficiency, a noise due to friction at the portion where the indicator fitting and the wall panel are in contact with each other, and a problem of damaging the wall panel due to friction.

Regarding the first problem, the problem of poor manufacturing efficiency, depending on the construction site, there are places where the metal plate material 60 must be used and places where the metal plate material 60 does not have to be used. It is necessary to properly use the support metal fitting 50 having the plate material support portion 54 or the support metal fitting 40 without the plate material support portion 54 according to the above. For this reason, the manufacturer has to manufacture two types of shapes even though these support metal fittings have similar shapes, resulting in poor manufacturing efficiency.

Along with this, the distributor of the support metal fittings also had to stock two types of support metal fittings according to the construction site, and had to require a lot of space in the inventory space and the sales space.

Here, it is conceivable to install the support metal fitting 50 provided with the plate material support portion 54 in the interlayer gap G, and to install the refractory interlayer material 30 without using the metal plate material 60. However, since the plate material support portion 54 is formed so as to protrude from the support metal fitting 50, the plate material support portion 54 inevitably becomes an obstacle when the operator installs the refractory interlayer material 30.

If the refractory interlayer material 30 is not installed at a normal position due to the protruding plate material support portion 54, the refractory interlayer material 30 is not evenly filled in the interlayer gap G, so that the refractory interlayer material 30 is sufficiently exhibited. There was a problem that a difficult part was generated.

Regarding the second problem, that is, the noise generated at the part where the indicator fitting and the wall panel are in contact with each other and the damage of the wall panel, the tips of the tension portions 43 and 53 of the indicator fittings 40 and 50 are in contact with the wall panel 20. Although it is fixed to the interlayer gap G, the tips of the tension portions 43 and 53 that come into contact with the wall panel 20 cause noise and damage to the wall panel.

Specifically, the indicator fittings 40 and 50 are fixed to the interlayer gap G by the downward elastic force of the interlayer gap G obtained by bending the metal plate material from the lower end of the hanging portion 42 toward the wall panel 20. Has been done.

In this way, when the metal indicator fittings 40 and 50 are inserted, the elastic force acts to expand the interlayer gap G, so that the tips of the tension portions 43 and 53 may damage the wall panel. was there.

Further, the interlayer gap G formed between the floor slab 10 of the building and the wall panel 20 is affected by all forces and vibrations such as earthquakes, ground subsidence, vibrations of automobiles, and vibrations caused by the movement of humans. As a result, the width of the interlayer gap G is changed.

Since the support metal fittings 40 and 50 are inserted into the interlayer gap G that changes under the influence of this force and vibration, the tips of the tension portions 43 and 53 are lowered by elastic force if the interlayer gap G is widened. If G is narrowed, the position where the wall panel 20 and the tips of the tension portions 43 and 53 come into contact with each other changes.

Therefore, every time the width of the interlayer gap G changes due to vibration, friction occurs at a position where the wall panel 20 and the tips of the tension portions 43 and 53 come into contact with each other. There is a problem that this friction causes frictional noise of metal and damages the wall panel 20. Since this fricative may be generated only by the vibration of a person moving, it has also been a cause of floor noise.

Further, the tension portions 43 and 53 not only cause friction noise and damage to the wall panel 20, but also cause injuries to the worker who installs the indicator fitting.
Since the tips of the tension portions 43 and 53 of the indicator fittings 40 and 50, which are made by bending a thin metal plate, protrude in a sharp state, the worker may injure his or her fingers when installing the indicator fittings or carrying in the indicator fittings. There were many things.

As described above, the tips of the tension portions 43 and 53 in contact with the wall panel 20 are indispensable for fixing the indicator fitting to the interlayer gap G, but there are many noises, damage to the wall panel, injury to the worker, and the like. Had a problem.

The present invention has been made in view of such a point, and a case where a metal plate for preventing the refractory interlayer material from being directly exposed to the fire from the lower floor is passed between the layers from the end face of the floor slab to the wall panel, and a metal. It is an object of the present invention to provide a support metal fitting for a refractory interlayer material that can be used in common with a case where a refractory interlayer material is installed without using a plate and further reduces friction with a wall panel after installation.

In the present invention, in order to solve the above problem, the support metal fitting for supporting the fireproof interlayer material filled in the interlayer gap formed between the end face of the floor slab and the wall panel is placed on the upper surface of the floor slab. An upper surface support portion to be formed, a hanging portion hanging from the wall panel side end portion of the upper surface supporting portion along the end surface of the floor slab, and a corner portion bent upward from the lower end of the hanging portion. A support metal fitting including a support side extending through the corner portion until reaching the wall panel, and a support metal fitting having a rounded corner portion at the tip of the support side on the wall panel side. Is provided.

As a result, the upper surface support portion is placed on the upper surface of the floor slab, the hanging portion hangs from the wall panel side end portion of the upper surface supporting portion along the end surface of the floor slab, and the corner portion is from the lower end portion of the hanging portion. The wall panel is bent at an acute angle toward the upper side, the support side is extended until it reaches the wall panel via the front corner, and the rounded corners are rounded at the tip of the support side on the wall panel side. In contact with.

Further, in the present invention, in the support method for supporting the fireproof interlayer material filled in the interlayer gap formed between the end face of the floor slab and the wall panel, the upper surface support portion is placed on the upper surface of the floor slab. The step of hanging down from the wall panel side end of the upper surface support portion along the end surface of the floor slab, and the corner portion is bent sharply from the lower end of the hanging portion to the upper side. A step, a step of extending the support side until it reaches the wall panel through the corner portion, and a wall panel having rounded corners at the tip of the support side on the wall panel side. A support method is provided characterized in that it comprises a process of contact with.

As a result, the upper surface support portion is placed on the upper surface of the floor slab, the hanging portion hangs down from the wall panel side end portion of the upper surface supporting portion along the end surface of the floor slab, and the corner portion extends from the lower end portion of the hanging portion. The wall panel is bent at an acute angle toward the upper side, the support side is extended until it reaches the wall panel via the front corner, and the rounded corners are rounded at the tip of the support side on the wall panel side. In contact with.

According to the interlayer refractory material support metal fitting and the interlayer refractory support method of the present invention, the upper surface support portion is placed on the upper surface of the floor slab, and the hanging portion is from the wall panel side end portion of the upper surface support portion to the end surface of the floor slab. The corners are used because they hang down along the corner, the corners are bent at an acute angle from the lower end of the hanging to the upper side, and the support side extends through the corners until it reaches the wall panel. It is possible to support the metal plate material to be erected. Therefore, a protrusion for supporting the metal plate material is not required, and a common support metal fitting can be used regardless of whether the metal plate material is used or not.

It is a side view which shows the state which closed the interlayer by using the support metal fitting for supporting the refractory interlayer material which concerns on this embodiment, the metal plate material, and the refractory interlayer material. It is a perspective view which shows the detail of the support metal fitting 100. It is a perspective view which shows the state which supported metal fittings erected on the floor slab. It is a figure which shows the formation example of the rounded corner part which was formed and controlled at the tip of the support side. It is a perspective view which shows the state which the metal plate material is erected on the support metal fitting installed in the interlayer gap. It is a figure which shows an example of the method of fixing a metal plate material to a support metal fitting. It is a side view which shows the state which closed the interlayer by using the support metal fitting for supporting the refractory interlayer material which concerns on this embodiment, and the refractory interlayer material. It is a figure which shows the refractory interlayer material arranged between the floor slab of a building, and a wall panel. It is a figure which shows the refractory interlayer material and the metal plate material arranged between the floor slab of a building, and a wall panel.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a side view showing a state in which the layers are closed by using the support metal fittings for supporting the refractory interlayer material according to the present embodiment, the metal plate material, and the refractory interlayer material.

As shown in FIG. 1, the support metal fitting 100 includes an upper surface support portion 110 arranged on the upper surface of the floor slab 200, and a hanging portion 120 hanging from an end portion of the upper surface support portion 110 along the end surface of the floor slab 200. It includes a corner portion 130 that is bent diagonally upward from the lower end of the hanging portion 120 toward the wall panel 300, and a support side 140 that extends through the corner portion 130 until it reaches the wall panel 300. ..

Further, although the refractory interlayer material 30 is installed on the upper part of the support metal fitting 100, since the one using the same structure as in FIGS. 8 and 9, the same reference numerals are given to the same parts to form the structure. The description is omitted.

At the tip of the support side 140, a rounded corner portion 141 having a rounded end portion in contact with the wall panel 300 is provided. In the past, since the sharp end was in contact with the wall panel 300, the building shook, and each time the sharp end rubbed against the wall panel 300, the wall panel 300 was damaged or a friction noise was generated. However, by rounding the tip of the support side 140 that comes into contact with the wall panel 300 like the rounded corner portion 141, damage to the wall panel 300 and friction noise with the wall panel 300 can be reduced.

A metal plate material 400 is erected from the corner portion 130 to the wall panel 300, and an interlayer gap G formed by the floor slab 200, the wall panel 300, and the metal plate material 400 is closed on the upper surface of the metal plate material 400. The fireproof interlayer material 30 is filled.

By supporting the floor slab 200 side of the metal plate material 400 with the corner portions 130 formed on the support metal fitting 100 in this way, it is possible to eliminate the need for the support portion of the metal plate material 400 which was conventionally provided in a protruding shape. .. As a result, the refractory interlayer material 30 can be smoothly filled in the interlayer gap G even if a common support metal fitting is used when the metal plate material 400 is not used.

FIG. 2 is a perspective view showing the details of the support metal fitting 100.
As shown in FIG. 2, the support metal fitting 100 is made by processing a single metal plate material, and includes an upper surface support portion 110, a hanging portion 120, a corner portion 130, and a support side 140.

The upper surface support portion 110 is arranged on the upper surface of the formed floor slab 200, and the upper surface support portion 110 and the hanging portion 120 are bent at right angles so that the hanging portion 120 hangs down along the end surface of the floor slab 200. Has been done.

A support side 140 extends from the lower end of the hanging portion 120 via the corner portion 130. The support side 140 has a sufficient length to reach the wall panel 300 from the corner portion 130, and the support metal fitting 100 is inserted into the interlayer gap G.

The corner portion 130 is bent at an acute angle of about 45 degrees. In this way, the corner portion 130 has a support side 140 extending diagonally upward at an acute angle, so that when the support metal fitting 100 is inserted into the interlayer gap G, the support side Since 140 bends upward, it can be inserted smoothly.

Further, when the support metal fitting 100 is inserted into the interlayer gap G, a downward force of the support side 140 acts due to the elastic force of the support side 140 extending through the corner portion 130, so that the support metal fitting 100 is inserted into the interlayer gap G. It is fixed to G.

Since the rounded corners 141 are provided at the tip of the support side 140, the wall panel 300 is not damaged when the support metal fitting is inserted into the interlayer gap G. It also comes into contact with the wall panel 300. Further, since the support side 140 has rounded corners, the frictional resistance is reduced and the support metal fitting 100 can be smoothly inserted into the interlayer gap G.

Since it is difficult to form a strict apex of the corner portion 130 by bending a metal plate material, a small roundness may be formed at the apex of the corner portion 130 formed by the bending process. Specifically, since the corner portion 130 supports the metal plate material 400 of 1.6 mm, the apex of the corner portion 130 forms a very small roundness with a radius of about 0.8 mm to 1 mm, so that the metal is stable. The plate-making material 400 can be supported.

FIG. 3 is a perspective view showing a state in which the support metal fitting is erected on the floor slab.
As shown in FIG. 3, the support metal fittings 100 are arranged at predetermined intervals along the end surface of the floor slab 200 in the interlayer gap G formed by the side surface of the floor slab 200 and the wall panel 300.

Since the support metal fitting 100 presses the support side 140 formed longer than the interlayer gap G into the interlayer gap G, the support metal fitting 100 can be stably fixed to the interlayer gap G. In order to fix the floor slab 200 more firmly, it can be fixed to the surface where the floor slab 200 and the support metal fitting 100 are in contact with each other by using an adhesive tape or the like.

FIG. 4 is a diagram showing an example of forming a rounded corner portion formed and restrained at the tip of the support side.
As shown in FIG. 4A, the tip of the rounded corner portion 141 is a tight hemming process in which the tip of the support side 140 is folded upward and crushed. By folding the tip of the support side 140 upward in this way, the tip of the support side 140 can be rounded.

As shown in FIG. 4B, the tip of the rounded corner portion 141 is a tight hemming process in which the tip of the support side 140 is folded downward and crushed. By folding the tip of the support side 140 downward in this way, the tip of the support side 140 can be rounded.

As shown in FIG. 4C, the tip of the rounded corner portion 141 is an open hemming process in which the tip portion of the support side 140 is folded upward so as to have a hollow portion inside. By folding the tip of the support side 140 upward so as to have a hollow portion inside, the tip of the support side 140 can be rounded.

As shown in FIG. 4D, the tip of the rounded corner portion 141 is an open hemming process in which the tip portion of the support side 140 is folded downward so as to have a hollow portion inside. By folding the tip of the support side 140 downward so as to have a hollow portion inside, the tip of the support side 140 can be rounded.

As described above, by rounding the corners of the tip of the support side 140, the contact with the wall panel 300 can be softened, and damage to the wall panel and friction noise can be reduced. Further, by rounding the corners of the tip of the support side 140, which has been sharp in the past, it is possible to reduce the injury of the worker.

FIG. 5 is a perspective view showing a state in which a metal plate material is erected on a support metal fitting installed in the interlayer gap.
As shown in FIG. 5, the corners 130 of the support metal fittings 100 arranged at predetermined intervals along the end face of the floor slab 200 in the interlayer gap G formed by the side surface of the floor slab 200 and the wall panel 300 are made of metal. The metal plate material 400 is erected so that one end of the long side of the plate material 400 is aligned.

One end of the long side of the erected metal plate 400 is supported by the corner 130 of the support metal fitting 100, and the other end is supported by contacting the wall panel 300. Then, the refractory interlayer material 30 is filled on the metal plate material 400 supported by the support metal fitting 100.

As a result, the inter-story gap G is filled with the refractory interlayer material 30, and the metal plate material 400 is erected under the refractory interlayer material 30. Therefore, the fire-resistant interlayer material 30 is directly ignited by a fire on the lower floor. Since it is not exposed, it can fully exhibit its fire resistance.

FIG. 6 is a diagram showing an example of a method of fixing a metal plate material to a support metal fitting.
As shown in FIG. 6, a notch 410 having the same width as the width of the support metal fitting 100 is provided at a portion where the metal plate material 400 and the support metal fitting 100 are in contact with each other.

The notch portions 410 are provided at the same intervals as the support metal fittings 100 installed in the interlayer gap G at predetermined intervals, and the metal plate material 400 is positioned in the horizontal direction by engaging the notch portions 410 and the support metal fittings 100. It can be erected without shifting.

When the metal plate material 400 without the notch 410 is installed on the support metal fitting 100, the metal plate material 400 is erected on the support metal fitting 100, so that the floor slab 200 and the metal plate material 400 are inevitably used. There was a gap between them by the thickness of the support metal fitting 100.

However, by providing the notch portion 410, the notch portion 410 is fitted into the support metal fitting 100, and one side of the metal plate material 400 other than the notch portion 410 on the floor slab 200 side may come into contact with the floor slab 200. it can.

As a result, the gap formed between the floor slab 200 and the metal plate material 400 can be eliminated, and the gap can cover the exposed refractory interlayer material 30 from the lower side of the interlayer gap G. it can.

That is, by providing a notch 410 in the metal plate 400, fitting the notch 410 into the support metal fitting 100 installed in the interlayer gap G, and temporarily installing the metal plate 400 in the interlayer gap G, the metal plate material 400 is completely laminated. The gap G can be closed.

As a result, even if a fire occurs on the lower floor, the fire caused by the fire does not come into direct contact with the refractory interlayer material 30, so that the refractory time of the refractory interlayer material 30 can be significantly extended.

FIG. 7 is a side view showing a state in which the layers are closed by using the support metal fittings for supporting the refractory interlayer material according to the present embodiment and the refractory interlayer material.
As shown in FIG. 7, even when the metal plate material 400 is not used, the refractory interlayer material 30 can be smoothly filled without any obstacle because there is no protrusion for fixing the metal plate material 400 on the hanging portion 120. ..

As a result, depending on the building to be constructed, regardless of whether the metal plate material 400 is used or the metal plate material 400 does not need to be used, the common support metal fitting 100 is used to form the refractory interlayer material 30. Can be supported.

That is, by manufacturing the common support metal fitting 100, it is possible to correspond to both construction sites, so that the manufacturing process can be simplified and the manufacturing efficiency can be improved.

10,200 Floor slab 20,300 Wall panel 30,500 Fireproof interlayer material 31 Core material 32 Top covering material 40, 50, 100 Support bracket 41, 51, 110 Top support part 42, 52, 120 Hanging part 43, 53 Strut part 54 Plate material support 60, 400 Metal plate 130 Square 140 Support side 141 Rounded corner 410 Notch G Inter-layer gap

Claims (7)

In the support metal fittings for supporting the refractory interlayer material filled in the interlayer gap formed between the end face of the floor slab and the wall panel.
The upper surface support part placed on the upper surface of the floor slab and the upper surface support part
A hanging portion that hangs down from the wall panel side end of the upper surface support portion along the end surface of the floor slab, and
The corners that are bent at an acute angle from the lower end of the hanging part to the upper side,
A support side extending through the corner to reach the wall panel,
The tip of the support side on the wall panel side has a rounded corner and a rounded corner.
A support metal fitting characterized by being provided with. When a metal plate material that closes the interlayer gap is erected on the lower surface of the refractory interlayer material
The support metal fitting according to claim 1, wherein an end surface of the metal plate material on the floor slab side is supported by the corner portion, and the end surface of the metal plate material on the wall panel side is supported by the wall panel. .. The metal plate material is
The support metal fitting according to claim 2, further comprising a fixing portion that is connected to and fixed to the corner portion. The fixed part is
The support metal fitting according to claim 3, wherein the support metal fitting is a notch provided with the width of the corner portion. The rounded corners
The support metal fitting according to claim 1, wherein the support metal fitting is formed by a bent portion whose tip of the support side on the wall panel side is folded back. The support metal fitting according to claim 5, wherein the bent portion is formed by hemming. In a support method for supporting a refractory interlayer material filled in an interlayer gap formed between an end face of a floor slab and a wall panel,
The process in which the upper surface support is placed on the upper surface of the floor slab,
A step in which the hanging portion hangs down from the wall panel side end portion of the upper surface support portion along the end surface of the floor slab.
The process of bending the corners at an acute angle from the lower end of the hanging part to the upper side,
A process in which the support side is extended until it reaches the wall panel through the corner portion.
The tip of the support side on the wall panel side has a process in which the rounded corners are in contact with the wall panel.
A support method characterized by comprising.

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