JP2022050967A - Fireproof insulation arrangement, fireproof insulation method, and fireproof insulation structure - Google Patents

Abstract

To provide a fireproof insulation arrangement capable of easily fireproof coating at the indoor side of a mullion in a spandrel panel, a fireproof insulation method, and a fireproof insulation structure.SOLUTION: A fireproof insulation 110 is formed covering an exposed part of a mullion 21 at the indoor side of a building below a floor slab 10 that the building has in advance. A support bracket 120 for preventing the fireproof insulation 110 from falling supports a portion where the fireproof insulation 110 is exposed in the mullion 21 at the indoor side of the building covering the same.SELECTED DRAWING: Figure 1

Description

The present invention relates to a fire-resistant heat insulating device, a fire-resistant heat insulating method, and a fire-resistant heat insulating structure. And fireproof insulation structure.

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.

The outer wall construction method using a curtain wall is composed of several members, and the most typical outer wall construction method using a metal curtain wall is to install a partition material called a mullion between the upper and lower floors and beams. A mullion-type outer wall construction method is known in which glass or a fireproof panel, which is a wall material, is fitted therein.

In addition, in a predetermined fire protection section divided by a building, if the part divided by the fire protection section is covered with glass, it is conceivable that the fire will spread to the adjacent section or the upper and lower floors via the outer wall in the event of a fire. Therefore, a floor, a wall, or a specific fire-prevention facility having a fire-resistant structure for partitioning a fire-prevention section called "spadrel" is to be provided in the section with the adjacent fire-prevention section.

Specifically, the wall material provided in the spandrel portion where the floor slab and the outer wall are in contact is a fireproof panel in which a glass surface provided on the outdoor side and a fireproof board provided on the indoor side of the glass surface are integrated. is set up.

Such a mullion-type metal curtain wall is characterized by a design in which wall materials such as glass and fireproof panels are attached to the indoor side rather than the mullion, and the vertical lines of the mullion are emphasized from the outside. Also, in recent years, there is an increasing number of construction methods called back mullion, in which wall materials are attached to the outdoor side of a mullion.

FIG. 17 is a front view, a top view, and a side sectional view showing a structural example of a mullion type metal curtain wall.
As shown in FIG. 17, the mullion type metal curtain wall is composed of a mullion 21 which is a vertical rail member erected on the upper and lower floor slabs 10 and a transom member which connects the mullion 21 in the lateral direction. A certain transam 22 is assembled in a grid pattern and fixed to the floor slab 10 by a fixing bracket 23.

Further, the floor slab 10 is supported by the steel beam member 70, and the mullion 21 or the refractory panel 24 fitted in the mullion 21 is fixed to the floor slab 10 by the fixing bracket 23.
Further, a wall material 20 such as a fireproof panel 24 and a glass window 25 is fitted between the mullion 21 and the transam 22 assembled in a grid pattern. Further, the mullion 21 and the transam 22 are made of an aluminum material in order to improve lightness, weather resistance and workability.

FIG. 18 is a plan sectional view showing the details of the spandrel panel portion of the mullion type metal curtain wall.
As shown in FIG. 18, the gap between the floor slab 10 and the wall material 20 such as the fireproof panel 24 and the glass window 25 is closed by inserting the fireproof interlayer material 30 supported by the support metal fitting 40 (for example,). , Patent Document 1 or Patent Document 2).

As described above, since the mullion 21 is usually made of an aluminum material, it has low fire resistance and melts at about 600 ° C. For example, when a fire breaks out outdoors as shown in FIG. 18, the mullion 21 exposed on the outdoor side may be melted and burned down by the heat generated by the fire.

If the mullion 21 is melted and burned down by a fire, it cannot function as a spandrel. Therefore, the fire resistance is ensured by increasing the number and thickness of the aluminum materials constituting the mullion 21.

Specifically, in order to secure the fire resistance for 30 minutes, the mullion 21 is formed by laminating two or more layers of aluminum plates of 2 mm or more with a laminated thickness of 5 mm, and the fire resistance for 1 hour is secured. In this case, it is operated by laminating four or more layers of aluminum plates having a thickness of 2 mm or more to form a mullion 21 with a laminated thickness of 10 mm.

However, since the aluminum material constituting the mullion 21 has high thermal conductivity, even if the number and thickness of the aluminum materials constituting the mullion 21 are increased as described above, the heat of the fire generated outdoors is still higher. Since it is transmitted indoors via the stand 21, the performance as an outer wall that controls the indoor side to a certain temperature or less is not satisfied.

Therefore, technical advice was notified by the Ministry of Land, Infrastructure, Transport and Tourism in 2009, and it is obligatory to cover the indoor side of the mullion 21 in the spandrel panel section with fireproof coating. In response to this technical advice, a method of spraying rock wool on the indoor side of the mullion 21 in the spandrel panel portion to provide a fireproof coating is currently used.

However, the spraying work of rock wool in a narrow place has a problem that the work efficiency is lowered and the stability of the construction quality is lowered.
For example, when spraying rock wool on the indoor side of the mullion 21 in the spandrel panel portion, rock wool is easily sprayed on the upper part of the floor slab 10 because there are no obstacles around the mullion 21 and the space is open. be able to. Further, the work of pressing the rock wool against the mullion 21 with a trowel can be performed without any problem.

However, with respect to the lower part of the floor slab 10, the work space is narrow because there is a steel beam member 70 such as H steel arranged on the lower side surface of the floor slab 10. When spraying rock wool in a place where the work space is narrow like this, there is a problem that rock wool adheres to unnecessary places, and it is necessary to carefully cure it so that unnecessary rock wool does not adhere. , It takes a lot of time and effort for construction.

Further, the work of pressing the rock wool against the mullion 21 with a trowel also causes a problem that the steel beam member 70 and the mullion 21 cannot be reached when the work is performed in a narrow place. In this case, the sprayed rock wool cannot be completely fire-resistant coated on the indoor side of the mullion 21, which leads to a decrease in the stability of construction quality.

As a countermeasure for the wet method by spraying rock wool in such a narrow space, a U-shaped refractory board is attached to the structure on both sides of the U-shaped refractory board, such as bolts. A refractory board support structure by a dry method having a metal fitting to be fastened with is developed (for example, Patent Document 3).

FIG. 19 is a plan sectional view showing a fireproof board support structure of a metal curtain wall.
As shown in FIG. 19, the refractory board support structure 60 of the metal curtain wall disclosed in Patent Document 3 consists of a refractory panel 24 arranged on both left and right sides of an aluminum mullion 21 and a refractory panel 24. The fixing bracket 23 and the mullion 21 are covered from the indoor side, and the mullion fireproof panel 61 structurally separated from the fireproof panel 24 and the mullion fireproof panel 61 are supported by the steel beam material 70. It includes a pair of upper brackets 62 and a pair of lower brackets 63.

According to the fireproof board support structure 60 of the metal curtain wall disclosed in Patent Document 3, the fireproof panels 24 are arranged on the left and right sides of the mullion 21. The mullion 21 is covered from the indoor side by the mullion fireproof panel 61. Therefore, since the temperature rise of the mullion 21 at the time of fire is reduced, melting of the mullion 21 and the like are suppressed.

Further, the refractory panel 24 is supported by the structure by the fixing metal fitting 23. On the other hand, the mullion refractory panel 61 is structurally separated from the fireproof panel 24, and is supported by the structure by a pair of upper brackets 62 and a pair of lower brackets 63, which are separate from the fixing bracket 23.

As a result, even if the refractory panels 24 on the left and right sides of the mullion 21 show different deformation behaviors, the mullion fireproof panel 61 is suppressed from following the deformation of these metal curtain wall refractory boards. To. Therefore, damage to the mullion refractory panel 61 is suppressed.

Japanese Unexamined Patent Publication No. 2002-242334 Japanese Unexamined Patent Publication No. 2010-261232 Japanese Unexamined Patent Publication No. 2014-095202

However, in the fireproof board support structure 60 of the metal curtain wall disclosed in Patent Document 3, the mullion fireproof panel 61 is fixed to the steel beam member 70 via the pair of upper brackets 62 and the pair of lower brackets 63. Therefore, there is a problem that the installation work in a narrow place is forced and the workability is remarkably lowered.

Specifically, since the upper bracket 62 is attached to the upper part of the steel frame beam material 70, when the steel frame beam material 70 and the square 21 come close to each other, the lower flange of the steel frame beam material 70 becomes a barrier, and the upper side is provided with a bolt or the like. The work of attaching the bracket 62 to the upper part of the steel beam member 70 becomes difficult.

Further, since the lower bracket 63 is attached to the lower part of the steel frame beam material 70, the bolt tightening position becomes a blind spot due to the lower flange of the steel frame beam material 70, which makes it difficult to fasten the lower bracket 63.

Further, not only the fastening work of the upper bracket 62 and the lower bracket 63 becomes difficult for the above reason, but also the indoor side of the mullion 21 cannot be completely fireproofed due to the incomplete fastening work. There is a possibility.

If a fire occurs in a state where the indoor side of the mullion 21 in the spandrel panel portion is not completely covered with fire resistance, the fire spreads from this gap to the upper and lower floors, and the gap becomes a weak point in terms of fire resistance.

Further, when heat is transferred indoors from the incompletely fireproof coated mullion 21 due to a fire generated outside, there is a risk that the heat due to the fire will be transferred to the steel beam member 70 supporting the floor slab 10. When the heat generated by the fire is transferred to the steel frame beam material 70, which is sensitive to heat, the steel frame beam material 70 is easily deformed.

The steel beam material 70 is a structure that becomes a framework that supports the structure of the building, and when the steel beam material 70 is deformed, it eventually supports the floor slab 10 and the building that form the structure together with the steel beam material 70. It is very dangerous because it may not be possible and it may lead to the collapse of the entire building.

The present invention has been made in view of these respects, and an object of the present invention is to provide a fire-resistant heat insulating device, a fire-resistant heat insulating method, and a fire-resistant heat insulating structure capable of easily performing a fire-resistant coating on the indoor side of a mullion in a spandrel panel portion. do.

In the present invention, in order to solve the above problem, in a fire-resistant heat insulating device for fire-resistant heat insulation at a spandrel portion of a building using a metal curtain wall with a fire-resistant panel attached between squares, below the floor slab of the building in advance. A refractory heat insulating material formed in a shape that covers an exposed part of the building on the indoor side of the building, and a support that supports the fireproof heat insulating material while covering the exposed part to prevent the fireproof heat insulating material from falling. A refractory insulation device is provided, which comprises means.

As a result, the refractory heat insulating material is formed in a shape that covers the exposed part of the mullion on the indoor side of the building below the floor slab of the building in advance, and the support means is provided to prevent the fireproof heat insulating material from falling. Support the exposed area with refractory insulation.

Further, in the present invention, in a fireproof heat insulating method in which fireproof insulation is performed at a spandrel portion of a building by a metal curtain wall in which a fireproof panel is attached between the squares, among the squares below the floor slab of the building in advance. A step of forming a refractory heat insulating material in a shape covering an exposed part on the indoor side of the building, and a step of supporting by a support means to prevent the fireproof heat insulating material from falling while covering the exposed part. A refractory insulation method is provided, characterized in that it is provided with.

As a result, the refractory heat insulating material is formed in a shape that covers the exposed part of the mullion on the indoor side of the building below the floor slab of the building in advance, and the support means is provided to prevent the fireproof heat insulating material from falling. Support the exposed area with refractory insulation.

Further, in the present invention, in the fire-resistant heat insulating structure in which fire-resistant heat insulation is performed at the spandrel portion of the building by a metal curtain wall in which a fire-resistant panel is attached between the squares, among the squares below the floor slab of the building in advance. Provided with a fire-resistant heat insulating material formed in a shape covering the exposed portion on the indoor side of the building, and a supporting means for supporting the fire-resistant heat insulating material in a state of covering the exposed portion in order to prevent the fire-resistant heat insulating material from falling. A fireproof insulation structure characterized by the above is provided.

As a result, the refractory heat insulating material is formed in a shape that covers the exposed part of the mullion on the indoor side of the building below the floor slab of the building in advance, and the support means is provided to prevent the fireproof heat insulating material from falling. Support the exposed area with refractory insulation.

According to the fire-resistant heat insulating device, the fire-resistant heat insulating method, and the fire-resistant heat insulating structure of the present invention, the fire-resistant heat insulating material is formed in a shape that covers the exposed part of the slab below the floor slab of the building in advance on the indoor side of the building. Since the supporting means formed and supporting the refractory insulation covering the exposed portion to prevent the fire insulation from falling, the indoor side of the slab in the spandrel panel portion can be completely and easily covered. , A fireproof insulation structure can be easily obtained.

It is a vertical sectional view and a horizontal sectional view which shows the fireproof structure which installed the fireproof insulation device in the metal curtain wall structure of the knockdown type which concerns on 1st Embodiment. It is a vertical sectional view and a horizontal sectional view which shows the fireproof structure which installed the fireproof insulation device in the metal curtain wall structure of the unit system which concerns on 1st Embodiment. It is a front view, the rear view, the left side view, the right side view, the plan view, and the bottom view which show the detail of the refractory insulation device in the knockdown system which concerns on 1st Embodiment. It is a perspective view which shows the refractory structure which installed the refractory insulation device which concerns on 1st Embodiment. 2 is a vertical sectional view and a horizontal sectional view showing a fireproof structure in which a fireproof heat insulating device is installed in a knockdown type metal curtain wall structure according to a second embodiment. It is a front view, the rear view, the left side view, the right side view, the plan view, and the bottom view which show the detail of the refractory insulation device in the knockdown system which concerns on 2nd Embodiment. It is a perspective view which shows the refractory structure which installed the refractory insulation device which concerns on 3rd Embodiment. 3 is a vertical sectional view and a horizontal sectional view showing a fireproof structure in which a fireproof heat insulating device is installed in a knockdown type metal curtain wall structure according to a third embodiment. It is a vertical sectional view and a horizontal sectional view which shows the fireproof structure which installed the fireproof insulation device in the metal curtain wall structure of the knockdown type which concerns on 4th Embodiment. It is a front view, the rear view, the left side view, the right side view, the plan view, and the bottom view which show the detail of the refractory insulation device in the knockdown system which concerns on 4th Embodiment. It is a perspective view which shows the refractory structure which installed the refractory insulation device which concerns on 4th Embodiment. It is sectional drawing which shows the detail of the support metal fitting for supporting a refractory insulation device and a refractory interlayer material. It is sectional drawing which shows the detail of the refractory insulation device, the refractory interlayer material, and the support metal fitting for supporting a metal plate material. It is a vertical sectional view and a horizontal sectional view which shows the fireproof structure which installed the fireproof insulation device in the metal curtain wall structure of the knockdown type which concerns on 5th Embodiment. It is a front view, the rear view, the left side view, the right side view, the plan view, and the bottom view which show the detail of the refractory insulation device in the knockdown system which concerns on 5th Embodiment. It is a perspective view which shows the refractory structure which installed the refractory insulation device which concerns on 5th Embodiment. It is a front view, the top view and the side sectional view which show the structural example of a mullion type metal curtain wall. It is a top view which shows the detail of the spandrel panel part of the metal curtain wall of a mullion type. It is a top sectional view which shows the refractory board support structure of a metal curtain wall.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[First Embodiment]
FIG. 1 is a vertical sectional view and a horizontal sectional view showing a fireproof structure in which a fireproof heat insulating device is installed in a knockdown type metal curtain wall structure according to the first embodiment.

As shown in FIG. 1, the wall material 20, particularly the refractory panel 24 in the spandrel portion, is supported by being fitted into a mullion 21 erected in the vertical direction, and the floor slab 10 supported by the steel beam material 70. The indoor side of the mullion 21 is exposed from the fireproof panel 24 to the indoor side between the fireproof panel 24 and the fireproof panel 24.

The refractory heat insulating device 100 includes a refractory heat insulating material 110 having fire resistance and heat insulating properties, and a support metal fitting 120 for supporting the refractory heat insulating material 110 and fixing the refractory heat insulating material 110 to the fireproof panel 24 above the floor slab 10. The refractory heat insulating material 110 is fixed so as to cover the cubic plate 21 exposed to the indoor side under the floor slab 10.

The fireproof heat insulating material 110 is made elastic by bundling or laminating inorganic fibers such as ceramic fibers, rock wool, glass wool, and calcium silicate, and is a square exposed indoors under the floor slab 10. By covering 21 from the peripheral surface, a complete fire protection section can be provided.

Further, since the square 21 and the steel beam member 70 are separated by the fireproof heat insulating material 110, even if an outdoor fire occurs, it is possible to prevent the temperature rise from being transmitted indoors due to the outdoor fire. , It is possible to prevent the steel frame beam material 70 from being deformed by light heat.

In FIG. 1, the refractory heat insulating material 110 for covering the mullion 21 for fitting the knockdown type metal curtain wall is described, but the size of the refractory heat insulating material 110 is exposed according to the shape of the mullion 21. If the mullion 21 can be covered, it can be formed in any shape, and the support metal fitting 120 for supporting the refractory heat insulating material 110 can also be formed in any shape accordingly.
The refractory heat insulating material 110 is formed in a shape that can sufficiently cover the mullion 21 exposed on the indoor side between the refractory panel 24 and the steel beam member 70 under the floor slab 10.

Hereinafter, with the mullion 21 erected in the vertical direction (height direction of the wall material 20) connected to the refractory panels 24, the width (width direction of the wall material 20) 40 mm × thickness (wall material 20) on the indoor side. A case where a structure in which 60 mm (in the thickness direction of 20) protrudes is covered with a refractory heat insulating material 110 will be described as an example. The dimensions shown here are just examples and can be changed as appropriate according to the design conditions of the building.

As shown in the cross-sectional view taken along the line AA of FIG. 1, the refractory heat insulating material 110 is formed of a rectangular parallelepiped having a width of 120 mm and a thickness of 100 mm, and the mullion 21 is inserted on the outdoor side of the widthwise side surface of the refractory heat insulating material 110. A notch K having a width of 40 mm and a thickness of 60 mm is formed along the height direction, and the cross section is formed in a U shape.

The fireproof heat insulating material 110 is placed between the steel frame beam material 70 such as H steel and the fireproof panel 24 arranged on the lower side surface of the floor slab 10, and between the lower end portion of the fireproof panel 24 and the lower side surface of the floor slab 10. It is formed at a height capable of covering the exposed square 21 in.

Specifically, the steel beam material 70 is H-steel having a height of 150 mm, the height of the fireproof panel 24 is 835 mm, and the height of the fireproof panel 24 is 337 from the upper end of the fireproof panel 24 to the lower surface of the floor slab 10. In the case of .5 mm, the height of the fireproof heat insulating material 110 is formed at 497.5 mm, which is the same height as the height from the lower surface of the floor slab 10 to the lower end of the fireproof panel 24 in the fireproof panel 24.

As a result, the refractory heat insulating material 110 can cover the exposed portion of the mullion 21 on the indoor side. Further, the fireproof heat insulating material 110 is interposed between the fireproof panel 24 and the steel frame beam material 70 that are close to the floor slab 10, and the fireproof heat insulating material 110 can completely shield the outdoors from the steel frame beam material 70.

Therefore, even if a fire occurs outdoors, the heat from the outside is not directly transferred to the steel beam material 70, and even if the temperature rises due to the outdoor fire, the structure supports the building inside the building. It is possible to prevent the steel beam member 70 from being deformed.

Further, by setting the height of the refractory heat insulating material 110 to the height from the lower surface of the floor slab 10 to the lower end of the refractory panel 24 in the refractory panel 24, the refractory heat insulating material 110 does not protrude from the refractory panel 24.

That is, even if only the glass window 25 is connected to the lower surface of the fireproof panel 24, the fireproof heat insulating material 110 fits within the height of the fireproof panel 24, so that the fireproof heat insulating material 110 is outdoors from the surroundings via the glass window 25. The aesthetics are good because it is not exposed.

In the present embodiment, the example in which the refractory heat insulating material 110 is formed in a cube to form a notch portion K has been described, but by combining three plate-shaped bodies, a horizontal cross section is formed in a U shape. It is also possible to form a notch K into which the mullion 21 is inserted.

Further, the peripheral surface of the fireproof heat insulating material 110 may be provided with an outer cover material made of, for example, a polyethylene film that completely covers the surface of the fireproof heat insulating material 110 with fireproof coating, and the fireproof heat insulating material 110 can be provided from moisture such as rainwater infiltrated from the outside. Can be protected.

Further, as the outer cover material that covers the peripheral surface of the refractory heat insulating material 110, a material having moisture-proof performance such as an aluminum sheet material can be installed on the surface. By providing the outer cover material with moisture-proof performance, it is possible to block the moisture flowing from the outside to the inside of the building, so that it is possible to prevent dew condensation and frost generated on the refractory heat insulating material 110.

The support metal fitting 120 has a sandwiching portion 121 that covers the fireproof heat insulating material 110 from the indoor side and sandwiches the fireproof heat insulating material 110, and a horizontal support side 122 that has a surface extending horizontally from the sandwiching portion 121 and in contact with the fireproof panel 24. And a vertical support side 123 extending vertically from the horizontal support side 122 and having a surface in contact with the fireproof panel 24.

The sandwiching portion 121 is formed by bending a metal plate so that the horizontal cross section is U-shaped, so that the opening of the sandwiching portion 121 and the opening of the fireproof heat insulating material 110 are in the same direction. The fireproof heat insulating material 110 is inserted and fixed from the opening of the sandwiching portion 121.

The method of fixing the refractory heat insulating material 110 and the sandwiching portion 121 is, for example, a method of interposing an adhesive or double-sided tape between the refractory heat insulating material 110 and the sandwiching portion 121 to fix the refractory heat insulating material 110, or a hole in an arbitrary place of the holding portion 121. There is a method of fixing the refractory heat insulating material 110 and the holding portion 121 from there with screws, bolts, or the like, and the refractory heat insulating material 110 can be fixed by any method.

By covering and sandwiching the elastic refractory heat insulating material 110 with the sandwiching portion 121, the shape of the refractory heat insulating material 110 can be maintained. 21 can be securely covered and sandwiched.

Further, in order to prevent the fire-resistant heat insulating material 110 from being deformed, the holding portion 121 fire-resistant heat-insulating the holding portion 121A, which is only the holding portion 121 appropriately formed in a U shape according to the height of the fire-resistant heat insulating material 110. It can be provided at an arbitrary height position of the material 110. This makes it possible to prevent deformation such as expansion of the opening of the refractory heat insulating material 110.

Although the example in which the sandwiching portion 121A and the sandwiching portion 121 are separately formed is shown here, the sandwiching portion 121 and the sandwiching portion 121A are formed of a series of metals, which is opposite to the opening of the refractory heat insulating material 110. It may be connected by a metal side along the side surface.

The horizontal support side 122 is a metal side that extends in the horizontal direction from both ends of the opening of the holding portion 121 and is bent at a right angle to both outer sides from both ends of the holding portion 121 in the opening direction. be.

The horizontal support side 122 is fixed to the floor slab 10, which is a structure that supports the building, by being connected to a fixing bracket 23 for fixing the vertical 21 or the fireproof panel 24 and the floor slab 10 provided on the upper surface of the floor slab 10. It is responsible for adjusting the position horizontally as much as possible.

The vertical support side 123 is a metal side that is in contact with the fireproof panel 24 that is vertically extended at a position that can be connected to the fixing bracket 23 by the horizontal support side 122, and is inserted from the lower side of the interlayer gap G1 to support the vertical support. The upper end of the side 123 is formed to be long enough to penetrate above the upper surface of the floor slab 10.

A bolt hole is provided in the upper part of the vertical support side 123, and is fastened to the fixing bracket 23 for fixing the mullion 21 or the refractory panel 24 and the floor slab 10 by a fastener such as a bolt 124. As a result, the fireproof heat insulating material 110 covers the mullion 21 exposed between the lower end of the fireproof panel 24 and the lower side surface of the floor slab 10 without falling from the floor slab 10 which is a structure supporting the building. It is fixed.

Specifically, the upper portion of the vertical support side 123 is sandwiched between the fixing bracket 23 and the mullion 21 or the fireproof panel 24, and the fixing bracket 23 is fixed to the mullion 21 or the fireproof panel 24 by a bolt 124. Fastened and fixed.

Since the fixing bracket 23 is fixed to the floor slab 10 which is a structure that supports the building, the vertical support side 123 is fixed to the floor slab 10 via the fixing bracket 23. That is, the refractory heat insulating material 110 is fixed to the floor slab 10 which is a structure by the support metal fitting 120.

The fixing bracket 23 referred to here is not only for fixing the floor slab 10 which is a structure supporting the building and the fireproof panel 24, but also for example, an auxiliary for fixing the fixing bracket 23 to the fireproof panel 24. Metal fittings can also be included. That is, the support metal fitting 120 can also support the refractory heat insulating material 110 by fastening the fixing metal fitting 23 to the auxiliary metal fitting for fixing the fixing metal fitting 23 to the fireproof panel 24 with a fastener such as a bolt 124.

The fireproof heat insulating material 110 in the above example is supported by the support metal fitting 120, and the support metal fitting 120 is fixed to the fireproof panel 24 with fasteners. For example, an adhesive or double-sided tape may be interposed in the portion where the material 110 and the mullion 21 are in contact with each other to ensure that the refractory heat insulating material 110 and the mullion 21 are adhered to each other.

Further, in the present embodiment, the horizontal support side 122 is formed between the sandwiching portion 121 and the vertical support side 123, but if the support metal fitting 120 can be fixed to the fixing metal fitting 23, the horizontal support side 122 can be used. By omitting it, the vertical support side 123 may be extended from the sandwiching portion 121.

FIG. 2 is a vertical sectional view and a horizontal sectional view showing a fireproof structure in which a fireproof heat insulating device is installed in a unit-type metal curtain wall structure according to the first embodiment.
The refractory structure of FIG. 2 is almost the same as the configuration shown in FIG. 1 except that the refractory structure of FIG. 1 and the shape of the mullion 21 are different, and the dimensions of the refractory heat insulating material 110 and the support metal fitting 120 are different accordingly. be. Therefore, the same components as those of the first embodiment are designated by the same reference numerals, and the description thereof will be omitted as appropriate.

In FIG. 1, the refractory heat insulating material 110 for covering the mullion 21 for fitting the knockdown type metal curtain wall has been described, but in FIG. 2, the mullion 21 for fitting the unit type metal curtain wall is used. It will be described as a refractory heat insulating material 110 for covering.

As shown in FIG. 2, with the mullion 21 erected in the vertical direction (height direction of the fireproof panel 24) connected to the fireproof panel 24, the width (width direction of the fireproof panel 24) 132. A structure in which 5 mm × 25 mm in thickness protrudes will be described as an example.

As shown in the cross-sectional view taken along the line AA of FIG. 2, the refractory heat insulating material 110 is formed of a rectangular parallelepiped having a width of 212.5 mm and a thickness of 65 mm, and is located on the outdoor side of the widthwise side surface of the refractory heat insulating material 110. A notch K having a width of 132.5 mm and a thickness of 25 mm is formed along the height direction, and the cross section is formed in a U shape.

The fireproof heat insulating material 110 is placed between the steel frame beam material 70 such as H steel and the fireproof panel 24 arranged on the lower side surface of the floor slab 10, and between the lower end portion of the fireproof panel 24 and the lower side surface of the floor slab 10. It is formed at a height capable of covering the exposed square 21 in.

Specifically, the steel beam material 70 is H-steel having a height of 150 mm, the height of the fireproof panel 24 is 817.5 mm, and the height of the fireproof panel 24 is from the upper end of the fireproof panel 24 to the lower surface of the floor slab 10. When the height is 250 mm, the height of the fireproof heat insulating material 110 is formed to be 567.5 mm, which is the same height as the height from the lower surface of the floor slab 10 to the lower end of the fireproof panel 24 in the fireproof panel 24.

As a result, the refractory heat insulating material 110 can cover the exposed portion of the mullion 21 on the indoor side. Further, since the fireproof heat insulating material 110 is interposed between the fireproof panel 24 and the steel frame beam material 70 that are close to the floor slab 10, the fireproof heat insulating material 110 completely shields the outside from the steel frame beam material 70, so that it is outdoors. Even if a fire occurs, the heat from the outside is not directly transferred to the steel frame beam material 70, and the deformation of the steel frame beam material 70 due to the temperature rise can be prevented.

FIG. 3 is a front view, a rear view, a left side view, a right side view, a plan view, and a bottom view showing details of the refractory heat insulating device in the knockdown method according to the first embodiment.
As shown in FIG. 3, the refractory heat insulating device 100 includes a refractory heat insulating material 110 and a support metal fitting 120 for supporting and fixing the refractory heat insulating material 110 to the fireproof panel 24, and the support metal fitting 120 is a holding portion. It includes 121, two horizontal support sides 122, and two vertical support sides 123.

It is desirable that the lengths of the two side surfaces of the sandwiching portion 121 and the sandwiching portion 121A in the thickness direction be shorter than the thickness of the refractory heat insulating material 110. Equal the length of the two side surfaces of the pinch 121 and the pinch 121A in the thickness direction to the thickness of the refractory insulation 110, or the length of the two sides of the pinch 121 and the pinch 121A in the thickness direction to be refractory insulation. If the thickness is greater than or equal to the thickness of the material 110, when the refractory heat insulating device 100 is pressed against the mullion 21, the two side surfaces of the sandwiching portion 121 and the sandwiching portion 121A in the thickness direction first interfere with the refractory panel 24. This is because there is a possibility that a gap may be formed between the refractory panel 24 and the refractory heat insulating device 100.

Therefore, by making the thickness of the two side surfaces of the holding portion 121 and the holding portion 121A in the thickness direction shorter than the thickness of the fireproof heat insulating material 110, even if the fireproof heat insulating device 100 is pressed against the mullion 21, it is fireproof. A refractory structure can be formed without creating a gap between the panel 24 and the refractory heat insulating device 100.

FIG. 4 is a perspective view showing a fireproof structure in which the fireproof heat insulating device according to the first embodiment is installed.
As shown in FIG. 4, in the fireproof heat insulating device 100, first, a worker on the lower floor inserts the fireproof heat insulating material 110 from the lower side of the floor slab 10 along the mullion 21 toward the upper side of the floor slab 10. go. Next, the upper end of the vertical support side 123 is inserted from the interlayer gap G1 between the fixing bracket 23 in the upper surface direction of the floor slab 10 and the fireproof panel 24, and the fireproof heat insulating material 110 is in contact with the lower surface of the floor slab 10. A worker on the upper floor fixes the fixing bracket 23 and the fireproof panel 24 with fasteners such as bolts 124 from the bolt holes provided in the upper part of the vertical support side 123.

At this time, since the bolt holes provided in the upper part of the vertical support side 123 protrude above the upper surface of the floor slab 10 due to the length of the vertical support side 123, the workers on the upper floor can easily make the fireproof heat insulating device 100. Can be fixed to the fixing bracket 23 and the fireproof panel 24.

Further, since the horizontal support side 122 is extended in the horizontal direction so that the vertical support side 123 comes to the position of the bolt 124 that fixes the fixing bracket 23 and the fireproof panel 24, the floor slab 10 and the fireproof panel 24 are connected. The fireproof heat insulating device 100 can be fixed to the fixing metal fitting 23.
Since no obstacles such as the steel beam member 70 are arranged above the floor slab 10, a refractory material such as rock wool can be easily sprayed to obtain a fireproof structure.

Further, when installing the fireproof heat insulating device 100 with a small number of workers, the worker first inserts the fireproof heat insulating device 100 on the lower floor, and the fireproof heat insulating material 110 is in contact with the lower surface of the floor slab 10. The fireproof heat insulating device 100 is temporarily fixed at a desired position by driving screws or nails horizontally from the closed side surface of the fireproof heat insulating material 110 toward the square 21, and the support member is moved to the upper floor after the worker moves. May be fixed to the structure that supports the building.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. The refractory heat insulating device of the present embodiment is substantially the same as the configuration shown in the first embodiment except that the shape of the support metal fitting and the support method are different. Therefore, the same components as those of the first embodiment will be designated by the same reference numerals, and the description thereof will be omitted as appropriate.

FIG. 5 is a vertical sectional view and a horizontal sectional view showing a fireproof structure in which a fireproof heat insulating device is installed in a knockdown type metal curtain wall structure according to a second embodiment.
The refractory heat insulating device 100 includes a refractory heat insulating material 110 and a support metal fitting 120 for supporting and fixing the refractory heat insulating material 110 to the refractory panel 24, and the refractory panel 24 and the steel beam material are provided under the floor slab 10. It is fixed so as to cover the refractory 21 with the 70.

The support metal fitting 120 is bent horizontally from the holding portion 121, the horizontal support side 122, the vertical support side 123, and the vertical support side 123 in the floor slab 10 direction, and is arranged on the upper surface of the floor slab 10. It is equipped with 125.

The upper surface support side 125 is formed by horizontally bending the vertical support side 123 in the floor slab 10 direction. The vertical support side 123 is bent at a position where there is no gap between the refractory heat insulating material 110 and the lower surface of the floor slab 10 with the lower surface of the upper surface support side 125 bent in advance in contact with the upper surface of the floor slab 10. Process.

Further, due to the thickness of the floor slab 10, after the fireproof heat insulating device 100 is inserted from under the floor slab 10 at the site, the vertical support side 123 is provided in a state where the fireproof heat insulating material 110 is in contact with the lower surface of the floor slab 10. It is also possible to form the upper surface support side 125 by bending in the direction of the floor slab 10 at the corner of the upper end of the floor slab 10.

The upper surface support side 125 can be securely adhered to the upper surface support side 125 and the floor slab 10 by interposing an adhesive or double-sided tape between the upper surface support side 125 and the upper surface of the floor slab 10, and is not shown. It is also possible to fix the upper surface support side 125 and the floor slab 10 to the bolt holes via fastening bolts or the like.

In the present embodiment, the fireproof structure in which the fireproof heat insulating device 100 is installed in the knockdown type metal curtain wall structure has been described as an example, but the fireproof heat insulating material 110 and the fireproof heat insulating material 110 of the fireproof heat insulating device 100 of the present embodiment have been described. By deforming the dimensions of the support metal fitting 120, the refractory heat insulating device 100 can be installed in the unit-type metal curtain wall structure.

FIG. 6 is a front view, a rear view, a left side view, a right side view, a plan view, and a bottom view showing details of the refractory heat insulating device in the knockdown method according to the second embodiment.
As shown in FIG. 3, the refractory heat insulating device 100 includes a refractory heat insulating material 110 and a support metal fitting 120 for supporting and fixing the refractory heat insulating material 110 to the fireproof panel 24, and the support metal fitting 120 is a holding portion. It has 121, two horizontal support sides 122, two vertical support sides 123, and two top surface support sides 125. The length of the upper surface supporting side 125 can be formed in a well-balanced length depending on the weight of the refractory heat insulating material 110 to be supported.

FIG. 7 is a perspective view showing a fireproof structure in which the fireproof heat insulating device according to the third embodiment is installed.
As shown in FIG. 7, in the fireproof heat insulating device 100 in which the vertical support side 123 is bent in advance to form the upper surface support side 125, the worker on the lower floor first inserts the fixing bracket 23 between the two upper surface support sides 125. The two upper surface support sides 125 are inserted from the lower side of the floor slab 10 upward from the interlayer gap G1 in an intervening state, and the fireproof heat insulating device 100 is centered on the bent portion between the upper surface support side 125 and the vertical support side 123. While rotating the rear end from the floor slab 10 toward the fireproof panel 24, the cutout portion K of the fireproof heat insulating material 110 is inserted so as to be fitted into the square 21.

Further, in the fireproof heat insulating device 100 which later forms the upper surface supporting side 125 by bending the vertical support side 123, the worker on the lower floor first moves the fireproof heat insulating material 110 from the lower side of the floor slab 10 along the mullion 21. Is inserted toward the upper side of the floor slab 10.

Next, the upper end of the vertical support side 123 is inserted from the interlayer gap G1 toward the upper surface of the floor slab 10, and the worker on the upper floor is in contact with the lower surface of the floor slab 10 with the fireproof heat insulating material 110 in contact with the vertical support side. The 123 is bent in the direction of the floor slab 10 at the corner of the upper end of the floor slab 10 to form the upper surface support side 125, and the fireproof heat insulating device 100 is fixed.

[Third Embodiment]
Next, a third embodiment of the present invention will be described. The refractory heat insulating device of the present embodiment is substantially the same as the configuration shown in the first embodiment and the second embodiment except that the shape and the supporting method of the support metal fittings are different. Therefore, the same reference numerals will be given to the components of the first embodiment and the same components as those of the second embodiment, and the description thereof will be omitted as appropriate.

FIG. 8 is a vertical sectional view and a horizontal sectional view showing a fireproof structure in which a fireproof heat insulating device is installed in a knockdown type metal curtain wall structure according to a third embodiment.
The refractory heat insulating device 100 includes a refractory heat insulating material 110 and a support metal fitting 120 for supporting and fixing the refractory heat insulating material 110 to the refractory panel 24, and the refractory panel 24 and the steel beam material are provided under the floor slab 10. It is fixed so as to cover the refractory 21 with the 70.

The support metal fitting 120 includes a holding portion 121 and a stretching means 126 for pressing the refractory heat insulating material 110 to which the holding portion 121 is fixed in the direction of the refractory panel 24 to stretch the refractory heat insulating material 110.

The tensioning means 126 is a means for connecting the steel beam member 70 and the fireproof heat insulating material 110 and pressing the fireproof heat insulating material 110 toward the fireproof panel 24 to stretch the steel beam member 70, and is a clamp fixed to the steel frame beam material 70. The material 126A, the screw hole portion 126B fixed to the clamp material 126A and threaded in the horizontal direction with a predetermined diameter, and the pressing bolt 126C inserted into the screw hole portion 126B having the same diameter as the screw hole portion 126B. A pressing plate material 126D for pressing the entire fireproof heat insulating material 110 in the direction of the fireproof panel 24 is provided between the pressing bolt 126C and the holding portion 121.

The clamp material 126A is a tool that is fastened and fixed to, for example, a flange portion that is a part of the steel frame beam material 70. The clamp material 126A is fixed to the steel frame beam material 70 through a tightening step.

The screw hole portion 126B is a screw hole connected to a part of the clamp material 126A or the clamp material 126A. The screw holes formed in the clamp material 126A are formed in the horizontal direction, and the pressing bolt 126C having the same diameter is inserted. By tightening the pressing bolt 126C, the pressing bolt 126C moves in the direction of the fireproof panel 24. ..

In addition, the tensioning means 126 tensions the steel beam member 70 and the fireproof heat insulating material 110 between the steel frame beam material 70 and the fireproof heat insulating material 110 by using, for example, the restoring force of a spring, or the expansion / contraction structure of the cylinder. It is also possible to stretch the steel beam member 70 and the fireproof heat insulating material 110 by using the above.

The pressing plate material 126D is a plate material having a vertical cross section on L, and is formed at the same height as the fireproof heat insulating material 110 or at a height equal to or lower than the height of the fireproof heat insulating material 110.
The inner corner of the pressing plate material 126D is pressed against the lower end of the floor slab 10 side of the fireproof heat insulating material 110, and the pressing bolt 126C is pressed against the pressing plate material 126D with the holding portion 121 interposed therebetween. Tighten the bolt 126C.

As a result, the refractory heat insulating material 110 is pressed in the direction of the refractory panel 24 as a whole. Further, the bent lower end portion of the pressing plate material 126D can prevent the refractory heat insulating material 110 from falling.

[Fourth Embodiment]
Next, a fourth embodiment of the present invention will be described. The refractory heat insulating device of the present embodiment is substantially the same as the configurations shown in the first to third embodiments, except that the shape of the support metal fitting and the support method are different. Therefore, the same components as those in the first to third embodiments are designated by the same reference numerals, and the description thereof will be omitted as appropriate.

FIG. 9 is a vertical sectional view and a horizontal sectional view showing a fireproof structure in which a fireproof heat insulating device is installed in a knockdown type metal curtain wall structure according to a fourth embodiment.
The refractory heat insulating device 100 includes a refractory heat insulating material 110 and a support metal fitting 120 for supporting and fixing the refractory heat insulating material 110 to the refractory panel 24, and the refractory panel 24 and the steel beam material are provided under the floor slab 10. It is fixed so as to cover the refractory 21 with the 70. Further, the gap between the floor slab 10 and the wall material 20 such as the fireproof panel 24 and the glass window 25 is closed by inserting the fireproof interlayer material 30 supported by the support metal fitting 40.

The support metal fitting 120 is provided at the holding portion 121, the horizontal support side 122, the vertical support side 123, and the upper end portion of the vertical support side 123, and is hooked on the support metal fitting 40 for supporting the other refractory interlayer material 30. It is provided with a hook portion 127 for supporting the refractory heat insulating material 110.

The hook portion 127 is for hooking to the support metal fittings 40 installed on both sides of the mullion 21 in order to support the other refractory interlayer material 30, and is horizontal from the upper end portion of the vertical support side 123. It is a protrusion that extends outward. The hook portion 127 is hooked by a curved portion or the like provided at the lower end portion of the support metal fitting 40, and is formed with a sufficient width so as not to come off with some movement.

Further, the vertical support side 123 and the hooking portion 127 are formed at a position where there is no gap between the refractory heat insulating material 110 and the lower surface of the floor slab 10 with the hooking portion 127 hooked on the support metal fitting 40. Be done.

Further, the hook portion 127 can be substituted by hooking it on a protrusion band such as a plate material support portion 54 for supporting the metal plate material 80 provided in a part of the support metal fitting 50 such as the support metal fitting 50.

FIG. 10 is a front view, a rear view, a left side view, a right side view, a plan view, and a bottom view showing details of the refractory heat insulating device in the knockdown method according to the fourth embodiment.
As shown in FIG. 10, the refractory heat insulating device 100 includes a refractory heat insulating material 110 and a support metal fitting 120 for supporting and fixing the refractory heat insulating material 110 to the fireproof panel 24, and the support metal fitting 120 is a holding portion. It includes 121, two horizontal support sides 122, two vertical support sides 123, and two hooks 127.

FIG. 11 is a perspective view showing a fireproof structure in which the fireproof heat insulating device according to the fourth embodiment is installed.
As shown in FIG. 11, in the fireproof heat insulating device 100, first, a worker on the lower floor inserts the fireproof heat insulating material 110 from the lower side of the floor slab 10 along the mullion 21 toward the upper side of the floor slab 10. go.
Next, the vertical support side 123 and the hooking portion 127 are inserted from the interlayer gap G1 toward the upper surface of the floor slab 10, so that the refractory heat insulating material 110 is in contact with the lower surface of the floor slab 10.

Next, a worker on the upper floor inserts the support metal fitting 40 from the upper part of the floor slab 10 into the interlayer gap G1 from both sides centering on the mullion 21. Finally, while the worker on the upper floor moves the support metal fitting 40 inserted into the interlayer gap G1 to the left and right, the support metal fitting 40 is moved to a state where the hook portion 127 is completely caught, and the refractory heat insulating material 110 is moved to the support metal fitting 40. Hook on and fix. As a result, the refractory heat insulating material 110 is fixed in a desired position.
The support metal fitting 40 used to support the refractory heat insulating material 110 can also be used to support the refractory interlayer material 30 inserted in the interlayer gap G1 from this state.

FIG. 12 is a cross-sectional view showing details of a refractory heat insulating device and a support metal fitting for supporting the refractory interlayer material.
As shown in FIG. 12, the refractory heat insulating device 100 is supported by the support metal fitting 40.

The refractory interlayer material 30 is inserted into the interlayer gap G1 between the floor slab 10 and the wall material 20 of the building. The refractory interlayer material 30 is supported by a plurality of support fittings 40 arranged at intervals in the longitudinal direction of the interlayer gap G1.

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 support portion 41 along the outer surface of the floor slab 10, and a wall material 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 material 20.

The core material 31 is press-fitted into the interlayer gap G1, and the upper surface covering material 32 is adhered to the surfaces of the floor slab 10 and the wall material 20 via an adhesive, so that the interlayer gap G1 can be completely closed.

The hooking portion 127 provided in the refractory heat insulating device 100 is hooked on the lower end portion of the tension portion 43 and the hanging portion 42 formed by bending in the wall material 20 direction at the lower end of the hanging portion 42, and is not shown here. The refractory insulation 110 is supported.

FIG. 13 is a cross-sectional view showing details of a refractory heat insulating device, a refractory interlayer material, and a support metal fitting for supporting a metal plate material.
As shown in FIG. 13, the refractory heat insulating device 100 is supported by the support fitting 50.

The refractory interlayer material 30 is inserted into the interlayer gap G1 between the floor slab 10 and the wall material 20 of the building. The refractory interlayer material 30 is supported by a plurality of support fittings 50 and a metal plate material 80 arranged at intervals in the longitudinal direction of the interlayer gap G1.

The support metal fitting 50 includes 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 support portion 51 along the outer surface of the floor slab 10, and a wall material 20 direction from the lower end of the hanging portion 52. It is composed of a tension portion 53 that is bent to the surface and the tip of which comes into contact with the wall material 20, and a plate material support portion 54 for supporting the metal plate material 80 provided in 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 80 is supported by the plate material support portion 54 provided on the hanging portion 52 of the support metal fitting 50, and the wall material 20 of the metal plate material 80 is supported. The side is supported by the wall material 20. As a result, the interlayer gap G1 between the end surface of the floor slab 10 and the wall material 20 is closed by the metal plate material 80.

The hooking portion 127 provided in the refractory heat insulating device 100 is hooked on the lower end portion of the tension portion 53 and the hanging portion 52 formed by bending in the wall material 20 direction at the lower end of the hanging portion 52, and is not shown here. The refractory insulation 110 is supported.

[Fifth Embodiment]
Next, a fifth embodiment of the present invention will be described. The refractory heat insulating device of the present embodiment is substantially the same as the configuration shown in the first embodiment except that the shape of the support metal fitting and the support method are different. Therefore, the same components as those of the first to fourth embodiments are designated by the same reference numerals, and the description thereof will be omitted as appropriate.

FIG. 14 is a vertical sectional view and a horizontal sectional view showing a fireproof structure in which a fireproof heat insulating device is installed in a knockdown type metal curtain wall structure according to a fifth embodiment.
The refractory heat insulating device 100 includes a refractory heat insulating material 110 and a support metal fitting 120 for supporting and fixing the refractory heat insulating material 110 to the refractory panel 24, and the refractory panel 24 and the steel beam material are provided under the floor slab 10. It is fixed so as to cover the refractory 21 with the 70.

The support metal fitting 120 is bent horizontally from the holding portion 121, the horizontal support side 122, the vertical support side 123, and the vertical support side 123 in the floor slab 10 direction, and is arranged on the upper surface of the floor slab 10. It is equipped with 125.

The refractory heat insulating material 110 has the same shape as the refractory heat insulating material 110 of the first to fourth embodiments, but a U-shaped gypsum board 111 is attached to the outside of the refractory heat insulating material 110. .. The gypsum board 111 has the strength to maintain a predetermined shape of the fire-resistant heat insulating material 110 having fire resistance and elasticity such as rock wool.

Therefore, the refractory heat insulating material 110 housed inside the gypsum board 111 formed in a U shape can maintain a predetermined shape while having elasticity, and the refractory heat insulating material 110 is deformed. It can be placed in a predetermined position along the gypsum 21.
Further, since the gypsum board 111 has strength, the support metal fitting 120 and the gypsum board 111 can be easily fixed by fasteners 128 such as screws.

The upper surface support side 125 is formed by horizontally bending the vertical support side 123 in the floor slab 10 direction. The vertical support side 123 is bent at a position where there is no gap between the refractory heat insulating material 110 and the lower surface of the floor slab 10 with the lower surface of the upper surface support side 125 bent in advance in contact with the upper surface of the floor slab 10. Process.

Further, due to the thickness of the floor slab 10, after the fireproof heat insulating device 100 is inserted from under the floor slab 10 at the site, the vertical support side 123 is provided in a state where the fireproof heat insulating material 110 is in contact with the lower surface of the floor slab 10. It is also possible to form the upper surface support side 125 by bending in the direction of the floor slab 10 at the corner of the upper end of the floor slab 10.

The upper surface support side 125 can be securely adhered to the upper surface support side 125 and the floor slab 10 by interposing an adhesive or double-sided tape between the upper surface support side 125 and the upper surface of the floor slab 10, and is not shown. It is also possible to fix the upper surface support side 125 and the floor slab 10 to the bolt holes via fastening bolts or the like.

FIG. 15 is a front view, a rear view, a left side view, a right side view, a plan view, and a bottom view showing details of the refractory heat insulating device in the knockdown method according to the fifth embodiment.
As shown in FIG. 15, the refractory heat insulating device 100 includes a refractory heat insulating material 110 having a gypsum board 111 on the outer surface, and a support metal fitting 120 for supporting and fixing the refractory heat insulating material 110 to the refractory panel 24. The support metal fitting 120 includes a holding portion 121, two horizontal support sides 122, two vertical support sides 123, and two upper surface support sides 125. The length of the upper surface supporting side 125 can be formed in a well-balanced length depending on the weight of the refractory heat insulating material 110 to be supported. Further, the refractory heat insulating material 110 and the support metal fitting 120 are fixed to the holding portion 121 and the gypsum board 111 by the fastener 128.

FIG. 16 is a perspective view showing a fireproof structure in which the fireproof heat insulating device according to the fifth embodiment is installed.
As shown in FIG. 16, the refractory heat insulating material 110 and the support metal fitting 120 are fixed to the holding portion 121 and the gypsum board 111 by the fastener 128.

In the fireproof heat insulating device 100 in which the vertical support side 123 is bent in advance to form the upper surface support side 125, first, the worker on the lower floor has two fixing brackets 23 interposed between the two upper surface support sides 125. The upper surface support side 125 is inserted from the lower side of the floor slab 10 from the interlayer gap G1 toward the upper side, and the rear end of the fireproof heat insulating device 100 is centered on the bent portion between the upper surface support side 125 and the vertical support side 123. While rotating in the direction of the fireproof panel 24, the cutout portion K of the fireproof heat insulating material 110 is inserted so as to be fitted into the square 21.

Further, in the fireproof heat insulating device 100 which later forms the upper surface supporting side 125 by bending the vertical support side 123, the worker on the lower floor first moves the fireproof heat insulating material 110 from the lower side of the floor slab 10 along the mullion 21. Is inserted toward the upper side of the floor slab 10. At this time, since the gypsum board 111 provided on the outer surface of the refractory heat insulating material 110 can maintain the linear shape of the refractory heat insulating material 110, it can be smoothly inserted along the mullion 21.

Next, the upper end of the vertical support side 123 is inserted from the interlayer gap G1 toward the upper surface of the floor slab 10, and the worker on the upper floor is in contact with the lower surface of the floor slab 10 with the fireproof heat insulating material 110 in contact with the vertical support side. The 123 is bent in the direction of the floor slab 10 at the corner of the upper end of the floor slab 10 to form the upper surface support side 125, and the fireproof heat insulating device 100 is fixed.

10 Floor slab 20 Wall material 21 Vertical 23 Fixing bracket 24 Fireproof panel 30 Fireproof interlayer material 70 Steel beam material 100 Fireproof insulation device 110 Fireproof insulation 120 Support bracket 121 Holding part 121A Holding part 122 Horizontal support side 123 Vertical support side 124 Bolt G1 Inter-story gap K Notch

Claims (13)

In a fireproof insulation device that insulates fireproofly at the spandrel part of a building with a metal curtain wall with a fireproof panel installed between the mullion.
A refractory heat insulating material formed in advance below the floor slab of the building to cover the exposed part of the mullion on the indoor side of the building.
A support means for supporting the refractory heat insulating material in a state of covering the exposed portion and preventing the fireproof heat insulating material from falling.
A refractory insulation device characterized by being equipped with. The support means is
The sandwiching portion that sandwiches the fireproof heat insulating material and
A vertical support side extending from the pinch portion along the fireproof panel to above the floor slab, and
Vertical support side fixing means for fixing the vertical support side to the fireproof panel fixing bracket for fixing the fireproof panel to the structure supporting the building, and
The fireproof heat insulating device according to claim 1, further comprising. A horizontal support side that is interposed between the sandwiched portion and the vertical support side and supports the vertical support side on the outside in the horizontal direction.
2. The refractory heat insulating device according to claim 2. The horizontal support side is
Sufficient length to support the vertical support side at a fixable position on the mullion and the floor slab, or on the mullion fireproof panel fixture that secures the mullion and the floor slab.
3. The refractory heat insulating device according to claim 3. The horizontal support side is
A sufficient length to support the mullion or the mullion-resistant panel and the mullion-resistant panel fixture for fixing the floor slab at a position where the vertical support side does not interfere with each other.
3. The refractory heat insulating device according to claim 3. The vertical support side is
An upper surface support portion that is bent indoors from the upper surface of the floor slab and placed on the upper surface of the floor slab instead of the vertical support side fixing means.
2. The refractory heat insulating device according to claim 2. A means for fixing the upper surface support portion to fix the upper surface support portion to the floor slab,
6. The refractory heat insulating device according to claim 6. The support means is
A pressing plate material that presses the indoor side surface of the fireproof heat insulating material toward the fireproof panel, and
The tensioning means arranged so as to tension the pressing plate material and the beam material that supports the floor slab from below.
The fireproof heat insulating device according to claim 1, further comprising. The support means is
The sandwiching portion that sandwiches the fireproof heat insulating material and
A hooking portion extended from the holding portion so as to be hooked on a support metal fitting for supporting the refractory interlayer material filled in the interlayer gap formed between the fireproof panel and the end face of the floor slab.
The fireproof heat insulating device according to claim 1, further comprising. The refractory heat insulating material is
A core material formed in a rod shape along the mullion.
The core material is
A notch formed on one side surface of the core material so as to cover the exposed portion,
The fireproof heat insulating device according to claim 1, further comprising. The core material is
Covered board with fire protection and strength on the indoor surface,
10. The refractory heat insulating device according to claim 10. In the fireproof insulation method of fireproof insulation at the spandrel part of the building by the metal curtain wall with the fireproof panel installed between the mullion.
A process in which a refractory heat insulating material is formed in a shape that covers an exposed portion of the mullion on the indoor side of the building in advance below the floor slab of the building.
A step of supporting by a support means to prevent the refractory heat insulating material from falling while covering the exposed portion, and a step of supporting the fireproof heat insulating material.
A refractory insulation method characterized by providing. In a fire-resistant insulation structure that insulates fire-resistantly at the spandrel part of a building with a metal curtain wall with a fire-resistant panel installed between the mullion.
A refractory heat insulating material formed in advance below the floor slab of the building to cover the exposed part of the mullion on the indoor side of the building.
A support means for supporting the refractory heat insulating material in a state of covering the exposed portion and preventing the fireproof heat insulating material from falling.
A fireproof insulation structure characterized by being equipped with.

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