JP2994984B2 - Fire wall structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire-resistant wall structure, and more particularly, to a fire-resistant wall structure of a building using an inorganic molded plate such as a calcium silicate plate, wherein a front panel is supported by a base steel frame. The present invention relates to a fire-resistant wall structure that can be extremely efficiently installed from the outdoor side or from one direction without damaging an inorganic molded plate by using a specific member as an anchor material to be made.

[0002]

2. Description of the Related Art In buildings such as buildings, calcium silicate plates are often used as fire-resistant outer wall materials in order to improve fire resistance. In general, an inorganic molded plate such as a calcium silicate plate has poor waterproofness and insufficient surface strength as an outer wall material. Moreover, the surface coating finish lacks durability and design. Therefore, in the outer wall structure of a building, a front panel is disposed on the outdoor surface of the calcium silicate plate.

[0003] A conventional fire-resistant wall structure is a structure as shown in FIGS. 6 and 7. FIG. 6 is a partially broken perspective view showing a mounting structure of a refractory material used for a conventional outer wall structure.
FIG. 1 is a vertical sectional view showing a conventional outer wall structure using a front panel. That is, in the fire-resistant wall structure of a building, as shown in FIG. 6, the vertical waist edge (2a) and the horizontal waist edge (2b)
The calcium silicate plate (6) is attached to the outdoor surface of the foundation steel frame (2) of the building containing the. As shown in FIG. 7, a calcium silicate plate (6) is provided on the underlying steel frame (2).
An anchor material (8) penetrating through and projecting to the surface side is attached, and the angle material (5) is fixed through the anchor material (8). Then, a front panel (7) is attached to the outdoor surface of the angle member (5).

[0004] The anchor steel (8) is attached to the base steel frame (2).
In the installation work, the calcium silicate plate (6) is appropriately pierced from the outside of the room, the anchor material (8) is penetrated therethrough, and the base steel frame (8) is pierced from the room side.
Or the anchor material (8) is welded to the base steel frame (8) in advance, and the calcium silicate plate (6) in which a position corresponding to the anchor material (8) has been cut out in advance is formed on the base steel frame ( 8) By attaching to the anchor material (8)
Is projected from the surface of the calcium silicate plate (6).

[0005]

The structure in which the anchor material (8) is inserted through the calcium silicate plate (6) has the following problems. That is, an anchor material (8) which penetrates through and penetrates a calcium silicate plate (6).
Welding to the base steel frame (8) is an extremely time-consuming operation because the operation must be performed from the indoor side shielded by the calcium silicate plate (6). Also, notching the calcium silicate plate (6) in accordance with the anchor material (8) is an incidental operation that also requires labor. Further, in any of the above-mentioned construction methods, a hole is formed in the calcium silicate plate (6) around the anchor material (8), which is not preferable in terms of fire resistance. Therefore, such a hole is made of rock wool, asbestos, mortar, or the like. Need to use and close.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a fireproof wall structure for a building using an inorganic molded plate such as a calcium silicate plate, in which a front panel is supported by a base steel frame. An object of the present invention is to provide a fire-resistant wall structure that can be extremely efficiently installed from the outdoor side or from one direction without damaging an inorganic molded plate by using a specific member as an anchor material to be made. .

[0007]

That is, the present invention comprises two aspects, the first of which is an inorganic molded plate as a refractory material attached to the outdoor surface of a foundation steel frame of a building; A fire-resistant wall including an anchor material attached to the base steel frame and arranged on the surface side of the inorganic molded plate, a base angle material fixed to the anchor material, and a facing panel attached to the base angle material In the structure, the anchor member is formed by projecting a pipe member on one surface of an angle support member made of angle iron, and the pipe member of the anchor member is provided with a hole opened in the inorganic-based formed plate at the outdoor side. And is fixed to the base steel frame by screws inserted into the pipe member from the outdoor side.

[0008] A second gist of the present invention is to provide an inorganic molded plate as a refractory material attached to one surface of a base steel frame of a building, and an inorganic molded plate attached to the base steel frame and attached to the base steel frame. In a fire-resistant wall structure including an anchor member disposed on a front surface side, a base angle member fixed to the anchor member, and a facing panel attached to the base angle member, the anchor member includes an angle formed of angle iron. A pipe member is provided so as to protrude from one surface of the support member, and the pipe member of the anchor material is inserted from one surface side into a hole opened in the inorganic molding plate, and the pipe member has one surface. A fire-resistant wall structure characterized by being fixed to the base steel frame by screws inserted from the side.

[0009]

In the fire wall structure according to the first aspect of the present invention, since the anchor material has the above-mentioned specific structure, a hole having a size corresponding to the outer diameter of the pipe member is formed in the inorganic molded plate. By opening from the outdoor side, it can be inserted from the outdoor side and fixed to the base steel frame.

[0010] In the fire-resistant wall structure according to the second aspect of the present invention, the anchor material is formed by opening a hole having a size corresponding to the outer diameter of the pipe member from one surface side of the inorganic molding plate. It can be inserted from one surface side and fixed to the underlying steel frame.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a fire-resistant wall structure according to the present invention will be described with reference to the drawings. In this embodiment, an outer wall structure will be described as an example. FIG. 1 is a partially broken perspective view showing a fire-resistant wall structure of the present invention. FIG. 2 is a vertical sectional view of a main part of the fire-resistant wall structure of the present invention using a specific anchor material. FIG.
FIG. 3 is a vertical sectional view showing the structure of the anchor member. FIG.
FIG. 5 is a front view showing another embodiment of the anchor member, and FIG.
FIG. 5 is a cutaway view taken along the line VV in FIG. 4.

The fire-resistant wall structure of the present invention is substantially the same as a conventional outer wall structure. As shown in FIG. 1, a fire-resistant material as a fire-resistant material attached to the outdoor surface of a foundation steel frame (2) of a building. Calcium silicate plate (asbestos cement calcium silicate plate)
An inorganic molded plate (6) such as gypsum or gypsum board, an anchor material (4) attached to the base steel frame (2) and disposed on the surface side of the inorganic molded plate (6), and fixed to the anchor material. And a front panel (7) attached to the base angle material.

[0013] As in the case of a conventional building, an underground steel frame (2)
Are vertical waist edges (2a) and horizontal waist edges (2b) made of C-shaped steel
And is fastened to the pillar (20) provided with the fireproof coating and the beam (30) provided with the fireproof coating via an angle piece or the like. Inorganic molded plate (6)
Are attached to the vertical waist edge (2a) and the horizontal waist edge (2b) using screws such as tapping screws. The base angle material (5) to which the front panel (7) is attached is
Includes a vertical angle (5a) and a horizontal angle (5b) arranged in a grid at appropriate intervals.

The front panel (7) is, for example,
As disclosed in JP-A-103934, this is a lightweight exterior material composed of a composite plate formed by laminating aluminum sheets on both sides of a nonmetallic sheet such as a calcium silicate plate. That is, the front panel (7) is provided with a cut in a composite plate formed by joining an aluminum sheet to both sides of a non-metallic sheet, and by bending the cut with the cut inside, a side wall is formed on the square front panel portion and its four peripheral portions. It is formed into a flat box-like body, and support pieces for attaching to the structural body are extended from the respective side walls. Needless to say, as the front panel (7), panels having various structures, such as the above-described composite plate cut into a square and provided with mounting support members on the back surface thereof, can be used. Such a front panel (7) is fixed to the outdoor surface of the base angle member (5) using a tex or the like. In FIG. 1, reference numeral (40) indicates a floor slab.

In the present invention, the anchor member (4) has a specific structure. That is, the anchor material (4)
As shown in FIG. 3, a pipe member (42) is provided so as to protrude from one surface of an angle support member (41). And
As shown in FIGS. 2 and 3, the pipe member (42) of the anchor member (4) is inserted from the outdoor side into a hole opened in the inorganic molded plate (6) and inserted into the pipe member from the outdoor side. It is fixed to the base steel frame (2) by the set screw (43).

An angle support member (4) for the anchor material (4)
As 1), an appropriate metal piece having an L-shaped cross section can be used. For example, an equilateral angle steel similar to the base angle material (5) can be cut into an appropriate length and used. .
Further, the pipe member (42) of the anchor material (4) is a pipe formed in a cylindrical shape with a bottom and having a hole for screw insertion at the bottom, and the pipe is a base angle material (5). In addition, various pipes can be used as long as they have strength enough to support the front panel (7).

The strength of the pipe member (42) depends on the size of the front panel (7), the strength and rigidity of the base angle material (5),
It is determined by the required anchor strength calculated in consideration of the wind resistance strength of the front panel (7) due to the mounting height, the weight of the front panel (7), and the like. Pipe member (4
2) is, for example, welded and fixed so as to overlap a screw hole opened on one surface of the angle support member (41).

Further, the anchor member (4) uses an equilateral angle steel as the angle support member (41), and a gear-shaped fastener is provided on one end side peripheral surface of the screw hole opened in the equal angle angle steel. The press-fitting of the attached pipe as a pipe member (42) from a surface corresponding to the inner slope of the mountain of the equilateral angle iron can be further facilitated. In addition, the said pipe member (42) usually has 2 to
Four are protruded.

Further, the anchor material (4) is shown in FIGS.
The structure shown in FIG. That is, in the anchor member (4) shown in FIGS. 4 and 5, a pipe member (42) is attached to substantially the center of one surface of an angle support member (41) made of an equilateral angle iron, and the pipe member (42) Are provided with screw holes (44) at three places around. In the same manner as described above, the pipe member (42) is press-fitted into a threaded hole at the center of one surface of the angle support member (41) by press-fitting a pipe having a fastener attached to the peripheral surface on one end side thereof, so that Protrude.

In the anchor member (4) shown in FIGS. 4 and 5, only one pipe member (42) is provided so as to protrude, so that the manufacturing cost of the anchor member can be further reduced. Further, when the anchor material (4) is fixed to the base steel frame (2), the pull-out strength is as follows.
2) By using the surrounding screw holes (44) to perform complementary fixing, the height can be sufficiently increased.

In the construction of the fire-resistant wall structure according to the present invention, first, as shown in FIGS. 1 and 2, first, the vertical trunk edge (2a) and the horizontal trunk edge (2b) of the foundation steel frame (2). Then, an inorganic molding plate (6) is attached using a tapping screw or the like. Next, for example, the anchor material (4) is placed at a position where the vertical body edge (2a) or the horizontal body edge (2b) is provided on the back side and at a position where the base angle material (5) is to be provided on the surface. Attach. The mounting position of the anchor material (4) depends on the size of the front panel (7), the strength and rigidity of the base angle material (5), the wind pressure resistance of the front panel (7) due to the mounting height, and the like. It is determined by the required seismic strength based on the weight of the panel (7) and the like.

The anchor member (4) is attached by drilling a hole having a size substantially the same as the outer diameter of the pipe member in accordance with the arrangement of the pipe member (42).
By inserting 2) from the outdoor side, this is arranged on the surface of the inorganic molded plate (6). And the pipe member (4
2) Insert a screw such as a tex from the outside of the room and fix it to the base steel frame (2), and fix the anchor member (4) to the base steel frame (2).

When the pipe member (42) is fixed to the base steel frame (2), as shown in FIG. 5, a screw support (45) is attached to the tip of a screw (43) inserted into the pipe member (42). ) Should be attached and inserted. The screw support member (45) is formed of an elastic material such as various synthetic resins and synthetic rubbers, for example, in the shape of a gear having a slightly larger diameter than the pipe member (42) and an open central portion. When such a screw support (45) is used, the pipe member (42)
When inserting the screw (43) into the
Since the screws (43) can be temporarily fixed by slightly inserting them, there is no need to hold the screws (43) with hands, and the screws (43) can be fixed to the base steel frame (2) very quickly. Properties can be further improved.

After the anchor member (4) is attached as described above, as shown in FIGS. 1 and 2, the vertical angle (5a)
Then, the horizontal angle (5b) is fixed to the anchor member (4) by welding at an appropriate interval. Next, a front panel (7) is attached to these base angle members (5) using screws such as tex. The joints formed between the facing panels (7) adjacent to each other, that is, at the positions corresponding to the base angle members (5), are filled with joint materials for enhancing water stoppage, such as gaskets and sealing materials. I do.

In the fire-resistant wall structure of the present invention, since the anchor member (4) has the above-mentioned specific structure, a hole having a size corresponding to the outer diameter of the pipe member (42) is formed in the inorganic molding plate ( 6) By opening from the outdoor side, the pipe member (42) can be inserted from the outdoor side and fixed to the base steel frame (2). That is, the fire-resistant wall structure of the present invention is extremely excellent in workability since all the work of attaching the anchor member (4) can be performed from the outdoor side. Also,
Since there is no need to break through the inorganic molded plate (6) or cut out the inorganic molded plate (6), repair work such as filling holes with rock wool or the like is unnecessary, and construction can be performed more efficiently. I can do it.

The fire-resistant wall structure of the present invention can be used not only for the above-described outer wall structure but also for the inner wall and the partition wall. That is, the fire-resistant wall structure of the present invention includes an inorganic molded plate as a refractory material attached to one surface of a foundation steel frame of a building, and an inorganic molded plate attached to the foundation steel frame and arranged on the surface side of the inorganic molded plate. Anchor material, a base angle material fixed to the anchor material, and a surface panel attached to the base angle material, the anchor material includes a pipe member on one surface of an angle support member made of angle iron. The pipe member of the anchor material is configured to protrude, and the pipe member is inserted into the hole formed in the inorganic molding plate from one surface side and is inserted into the pipe member from one surface side by a screw. Fixed to the underlying steel frame. The one surface is an outdoor surface,
Either the indoor side surface or the one living room side surface of the partitioned room is shown. In such a fire-resistant wall structure as well, the work of attaching the anchor material can be performed from one direction in the same manner as described above, and the workability is extremely excellent, and the repair work is unnecessary, so that the work can be performed more efficiently. Can be done.

[0027]

As described above, according to the fire-resistant wall structure of the present invention, in a fire-resistant wall structure of a building using an inorganic molded plate, a specific member is used as an anchor material for supporting a surface panel to a base steel frame. Because of the use of, it is possible to work extremely efficiently from outside or from one direction without damaging the inorganic molded plate.

[Brief description of the drawings]

FIG. 1 is a partially broken perspective view showing a fire-resistant wall structure of the present invention.

FIG. 2 is a vertical sectional view of a main part of the fire wall structure of the present invention using a specific anchor material.

FIG. 3 is a vertical sectional view showing the structure of the anchor member.

FIG. 4 is a front view showing another embodiment of the anchor member.

FIG. 5 is a cutaway view taken along a line VV in FIG. 4;

FIG. 6 is a partially broken perspective view showing a structure for attaching a refractory material used in a conventional outer wall structure.

FIG. 7 is a vertical sectional view showing a conventional outer wall structure using a front panel.

[Explanation of symbols]

 2: Base steel frame 2a: Vertical body edge 2b: Horizontal body edge 4: Anchor material 41: Angle support member 42: Pipe member 43: Screw 5: Base angle material 5a: Vertical angle 5b: Horizontal angle 6: Inorganic molding plate ( Refractory material) 7: Exterior panel

Continuation of front page (58) Fields surveyed (Int.Cl. ⁶ , DB name) E04F 13/08-13/18 E04B 2/88-2/96

Claims (2)

(57) [Claims] 1. An inorganic molded plate as a refractory material attached to an outdoor surface of a base steel frame of a building, and an anchor material attached to the base steel frame and arranged on the surface side of the inorganic molded plate. In a fire-resistant wall structure including a base angle member fixed to the anchor member and a facing panel attached to the base angle member, the anchor member projects a pipe member from one surface of an angle support member made of angle iron. The pipe member of the anchor material is fixed to the base steel frame by a screw inserted from the outdoor side into a hole opened in the inorganic molded plate and inserted into the pipe member from the outdoor side. A fire-resistant wall structure characterized by: 2. An inorganic molded plate as a refractory material attached to one surface of a base steel frame of a building, and an anchor material attached to the base steel frame and arranged on a surface side of the inorganic molded plate. In a fire-resistant wall structure including a base angle member fixed to the anchor member and a facing panel attached to the base angle member, the anchor member projects a pipe member from one surface of an angle support member made of angle iron. The pipe member of the anchor material is inserted into the hole formed in the inorganic molding plate from one surface side, and the base member is inserted into the pipe member by a screw inserted from one surface side. A fire-resistant wall structure fixed to a steel frame.