JP4890102B2 - Fireproof reinforcement structure of aluminum curtain wall - Google Patents

Description

  The present invention belongs to the technical field of fireproof reinforcing structures for aluminum curtain walls, and more particularly relates to a fireproof reinforcing structure that prevents damage to fireproof boards due to vertical and deformation of mounting hardware.

  In recent years, with the increase in the number of buildings, curtain walls having fire resistance as exterior specifications have been rapidly established. For example, as shown in FIGS. 4A and 4B, a U-shaped mounting hardware 20 is attached to the side surface of the aluminum stand 10, and a fireproof board 30 is inserted into the U-shaped opening of the mounting hardware 20. It is used for practical use.

The curtain wall shown in FIGS. 4A and 4B has the following problems.
In response to the revision of the Building Standards Act enforced in 2000, when fire resistance design is performed based on newly introduced performance regulations, the required fire resistance time is determined by the indoor conditions and the fire resistance performance exceeds the certified fire resistance time. May be required for aluminum curtain walls. In that case, a method of determining the specifications after confirming the fire resistance performance by a fire resistance performance experiment is generally used.
Since the above fire resistance performance experiment is performed on a test body in which the vertical and fireproof boards are integrated, not only the individual fireproof performance of the vertical and fireproof boards but also the thermal deformation of the vertical (forced to the fireproof board) Deformation) may also determine fire resistance performance.
That is, when the aluminum vertical 10 is heated, a temperature difference is generated between the heating surface side I and the non-heating surface side O, and a large deformation that is convex on the heating surface side I occurs. As a result, the mounting hardware 20 of the vertical 10 is also greatly deformed, and thus the fireproof board 30 inserted in the hardware 20 is also deformed, causing damage such as cracks, and the fireproof performance is remarkably lowered. . Therefore, even if the fireproof board 30 itself has sufficient fireproof performance, the fireproof performance cannot be maintained at an early stage, and the fireproof performance of the inherent fireproof board is hardly exhibited.
In addition, the technology for preventing the fireproof board from being damaged due to the vertical or the deformation of the mounting hardware has not been seen or heard.

  An object of the present invention is to provide a fireproof reinforcing structure capable of reliably preventing damage to the fireproof board due to the vertical and the deformation of the mounting hardware and maintaining the fireproof performance.

As a means for solving the above-described problems of the prior art, in the fireproof reinforcement structure for an aluminum curtain wall according to the invention described in claim 1,
The U-shaped opening of the mounting hardware is formed to have a width that creates a gap between the board and the opening when the fireproof board is inserted into the opening. A fixing material that is easily burned off by heating is installed between the fire-proof board on the heating surface side where the deformation is likely to occur and the opening, and in the event of a fire, the fixing material burns away, leaving a gap between the fire-proof board and the mounting hardware. It is characterized by being configured to hold and prevent damage such as cracks due to deformation of the fireproof board .

The invention according to claim 2 is the fireproof reinforcement structure for an aluminum curtain wall according to claim 1 ,
The mounting hardware is characterized in that a substantially U-shaped opening is mounted on a lateral outer surface or side surface in a lateral direction and the openings of adjacent mounting hardware face each other.

The fireproof reinforcement structure for an aluminum curtain wall according to the invention described in claim 1 or 2 has the following effects.
The mounting hardware is formed to have a width so that there is a gap between the board and the hardware when the refractory boat is inserted, and a fixing material to be burned out is installed in the gap. Even if a large deformation occurs in the mounting hardware, the fixing material is burned out, so that a gap between the fireproof board and the mounting hardware can be maintained. When thus to damage such as cracks in the refractory board is deformed is reliably prevented Rukoto not a live, the fire performance with fireproof originally reliably held, can be realized rational refractory design.

In the present invention, an attachment metal 2 having a substantially U-shaped cross section is attached to a vertical wall 1, and the fireproof board 3 is inserted between U-shaped openings 2 a of adjacent attachment metal 2. It is a fireproof reinforcement structure for curtain walls.
The U-shaped opening 2a of the mounting hardware 2 of the vertical 1 has such a size that a gap is generated between the board 3 and the opening 2a when the fireproof board 3 is inserted into the opening 2a. A fixing material 4 which is formed in a width L and which is easily burned off by heating is installed between the fireproof board 3 inserted in the opening 2a and the opening 2a.

Hereinafter, a fireproof reinforcing structure for an aluminum curtain wall according to the present invention will be described with reference to FIGS.
The aluminum curtain wall of the present invention is preferably implemented in, for example, a fire prevention compartment or an interlayer compartment (spandrel) portion of the outer wall of the upper, middle and lower floor housings as shown in FIG.

  In the fireproof reinforcing structure for an aluminum curtain wall of the present invention, a plurality of vertical 1, which are extruded products of aluminum alloy, are fixed to the indoor side I (also referred to as the heating surface) of the casing, and the side surfaces of the multiple vertical 1 are fixed. The mounting hardware 2 is mounted in such a manner that the U-shaped openings 2a are horizontally and adjacently arranged, and the fireproof board 3 is inserted between the openings 2a of the mounting hardware 2. (See FIG. 2A).

The U-shaped opening 2a of the mounting hardware 2 is formed to have a width L of such a size that a gap is generated between the board 3 and the opening 2a when the fireproof board 3 is inserted into the opening 2a. Has been. The width L is designed in proportion to the thickness of the fireproof boat 3. And the fixing material 4 which is easily burned down by heating is installed between the fireproof board 3 inserted in the opening 2a and the opening 2a (see FIG. 2B). The fixing member 4, specifically, a material having a stretching function like flop Rustic rubber is preferred. Of course, it is not necessary to burn out completely, and it is only necessary to shrink the above-mentioned gap within an effective use range.

The fixing member 4 that has established in the illustrated example only in the gap between the refractory board 3 and the opening 2a of the deformation is easily caused heated surface I (indoor side).
Therefore, even if a large deformation occurs in the stand 1 and the mounting hardware 2 in the event of a fire, the fixing material 4 is burned down by the fire heat, so that the gap provided between the fireproof board 3 and the mounting hardware 2 can be maintained.
In this way, it is possible to surely prevent the fireproof board 3 from being damaged such as cracks due to deformation, to reliably maintain the fireproof performance inherent to the fireproof board 3 and to realize a rational fireproof design.

  The embodiment of the present invention is not limited to this. As shown in FIG. 3, the mounting hardware 2 is not the side surface of the vertical 1, but the opening 2 a of the mounting hardware 2 is formed on the outer surface (inner side I) of the vertical 1. It is also preferable that the mounting is performed in such a manner that the openings 2a of the mounting hardwares 2 and 2 that are adjacent to each other face side by side.

  Although the embodiments have been described with reference to the drawings, the present invention is not limited to the illustrated examples, and includes a range of design modifications and application variations that a person skilled in the art normally performs without departing from the technical idea thereof. I will add that just in case. Although the present invention has been particularly described with respect to a fireproof reinforcement structure of a “rectangular” aluminum curtain wall, the invention can be applied to a member that supports a fireproof board of a curtain wall according to another type.

It is the longitudinal section showing the outline of the fireproof reinforcement structure of the aluminum curtain wall concerning the present invention. A is a top view which showed the outline of the fireproof reinforcement structure of the aluminum curtain wall based on this invention. B is an enlarged view showing the fitting of the mounting hardware and the fireproof board. It is the top view which showed another Example of the fireproof reinforcement structure of the aluminum curtain wall which concerns on this invention. A is a plan view showing a conventional example of an aluminum curtain wall. B is an enlarged view showing the fitting of the mounting hardware and the fireproof board.

Explanation of symbols

1 Standing 2 Mounting hardware 2a Opening 3 Fireproof board 4 Fixing material

Claims (2)

An aluminum curtain wall fireproof reinforcement structure in which a mounting hardware having a substantially U-shaped cross section is installed in a vertical manner, and a fireproof board is inserted between U-shaped openings of adjacent mounting hardware. ,
The U-shaped opening of the mounting hardware is formed to have a width that creates a gap between the board and the opening when the fireproof board is inserted into the opening. A fixing material that is easily burned off by heating is installed between the fireproof board on the heated surface side where the deformation is likely to occur and the opening, and in the event of a fire, the fixing material is burned away to maintain the gap between the fireproof board and the mounting hardware And a fireproof reinforcement structure for an aluminum curtain wall, characterized in that it is configured to prevent damage such as cracks due to deformation of the fireproof board . 2. The aluminum according to claim 1, wherein the mounting hardware is attached to the outer surface or the side surface of the side wall in such a manner that the substantially U-shaped opening is disposed sideways and the openings of the adjacent mounting hardware face each other. Fireproof reinforcement structure for curtain walls.

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