JPS5938810Y2 - fireproof partition wall - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a partition wall, and relates to a structure with improved fire resistance and impact resistance.

[Technical background of the invention]

BACKGROUND ART In high-rise buildings, condominiums, or apartment complexes, partition walls are often used as internal boundaries or boundaries between doors.

As wall materials for such partition walls, noncombustible building boards such as gypsum board, asbestos slate, and calcium silicate board have been conventionally used for protection against fire.

In addition, pillars and frames made of metal such as steel are used as forest land for constructing partition walls from the above-mentioned non-combustible wall materials, and the non-combustible building boards are attached to both sides of the base to construct the partition walls. This is the most commonly used construction method.

[Problems with background technology]

From a disaster prevention perspective, it is desirable for partition walls to not only be non-combustible, but also to have a higher level of fire resistance.In particular, it is desirable to have excellent heat insulation properties and excellent impact resistance. You are required to have one.

However, the conventionally used noncombustible building boards such as gypsum board have poor impact resistance and cannot exhibit sufficient performance as wall materials for fireproof partition walls.

Therefore, the current situation is to strengthen the walls by increasing the thickness of the wall material, installing nets made of metal lath or glass fiber, or inserting core materials into the gypsum board.

However, all of these methods require complicated labor during construction, resulting in increased costs and problems.

In addition, pillar materials such as steel materials used in the construction of conventional fireproof partition walls have the disadvantage that when heated to high temperatures, they soften and their strength significantly decreases.

Measures have been taken to compensate for this drawback, such as coating the steel with non-combustible materials, increasing the thickness of the non-combustible wall materials mentioned above, or installing joints with complex shapes, but the construction costs are high. This poses problems such as being extremely bulky and causing an unnecessarily increased weight.

[Purpose of invention]

The present invention was developed in view of the above circumstances, and provides an economical fire-resistant partition wall that has significantly superior fire resistance and impact resistance compared to conventional partition walls, and can be easily assembled and constructed on site. It is something to do.

[Summary of the idea]

The fireproof partition wall according to the present invention uses a composite panel made of a steel plate with gypsum board attached to both sides as the wall material, and the pillars are made of a composite square material made of gypsum board and at least two layers of plywood laminated with the gypsum board interposed. It is characterized by being constructed as a material.

As mentioned above, the present invention achieves the intended purpose by combining wall material buttons and pillar materials having a specific laminated structure, and the respective functions are as follows.

First, the panel mainly made of gypsum board used as a wall material in the present invention has a highly rigid steel plate in its center, so the steel plate provides excellent impact resistance.

In addition, since a highly thermally conductive steel plate is placed in the center of the panel, when the panel is heated, the steel plate acts to uniformly transfer heat to the entire gypsum board.

As a result, the heat-absorbing effect of the gypsum board (as is well known, the gypsum board has heat-absorbing properties by releasing crystallized water) is effectively exhibited, and the fire resistance performance is significantly improved.

Next, to explain the function of the composite square timber that is key to this invention, for example, in a conventional fireproof partition wall using lightweight steel columns, even if a fire breaks out on one side of the fireproof wall, the side where the fire occurred Damage such as discoloration occurs not only on the wallboard surface but also on the opposite wallboard surface.

This applies not only to screws and other metal fittings connected to pillar materials such as wall plates such as plasterboard, but also because the pillar materials themselves are made of steel and have high thermal conductivity. This is because when installed on the opposite side, heat is transmitted through the metal fittings to the wall board surface on the opposite side from the side where the fire occurred.

On the other hand, since the composite square material used in the present invention is made by laminating gypsum board and plywood, its thermal conductivity is low, so the above-mentioned problem does not occur.

However, square timbers made only of gypsum board have weak holding power when nailed, making it difficult to install wall materials, but the composite square timbers are laminated with plywood that has excellent nailing holding power. Therefore, the composite panel can be sufficiently nailed and can be constructed with good workability.

However, the thickness of the steel plate, gypsum board button, and plywood used in this invention is iron plate: 0.05 to 1.6 rtvn-, gypsum board 117 to 22M% plywood: 3 to 12# to obtain a sufficient effect. .

These are all easily available commercially available thicknesses.

[Example of idea]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1A, B to 4A, B are explanatory diagrams showing a fireproof partition wall according to an embodiment of the present invention, together with a construction method thereof.

As shown in FIGS. 1A and 1B, the runners 4 and 4' are fixed to the ceiling and the floor.

Next, the runners 4, 4 are used as pillar materials using the composite square timber 1, which is constructed by pasting plasterboards 3, 3' on both sides of the plywood 20 and pasting plywood boards 2', 2'' on the outside thereof. ′
Insert the runner into the groove of the runner 4, and attach it vertically to the ceiling and floor using the tapping screw 5°5'.
Fix it at 4'.

Next, as shown in FIGS. 2A and 2B, an adhesive 8 was applied to the runner 4 and the composite square beam 1 attached thereto, and a composite panel 6 was attached as a wall material to one side of the composite square beam 10. After that, further fix this with a tapping screw 5.5'.

In this case, the composite panel 6 has a thickness of 0.1 to 0.
5 rran's "galvanized iron plate" 70 plasterboard on both sides 3,
3' is used.

A ``galvanized iron plate'' is a common name for a steel plate whose surface is galvanized.

When attaching a composite panel as described above, as shown in FIG. The installations can be fixed one after another to match.

As shown in the figure, the composite panel can be more firmly attached by attaching another composite square member 1' to the center of the composite panel.

Thereafter, as shown in FIGS. 4A and 4B, a composite panel 6' is attached to the opposite surface of the composite square member 10 in the same manner as described above, and further fixed with tapping screws.

In this way, the fireproof partition wall of the present invention is obtained, in which the composite panels 6, 6' are adhered and fixed to both sides of the composite square beam 10.

5A and 5B show modifications of the embodiment shown in FIGS. 1 to 4, respectively.

In the example shown in FIG. 5A, as shown in FIG. 3, a composite square member 1 is attached to a composite panel 6 in advance, a button is attached, and the composite panel 6 is fixed to a runner 4 using tapping screws 5.

Alternatively, as shown in FIG. 5B, the structure may be constructed by fixing composite panels 6, 6' attached to both sides of the composite square timber 10.

FIGS. 6A and 6B show a fireproof partition wall according to another embodiment of the present invention.

In this embodiment, two pieces of plywood 2, 2' with a thickness of 4rran and a plaster board 3 with a thickness of 12mm are used as the composite square material 1.
3' and 3" were laminated and pasted alternately as shown in the figure, and the composite panel 6.6' had a thickness of 0.25 m.
The galvanized iron plates 7, 7' have gypsum boards 3, 3' with a thickness of '9rrrm attached to both sides.

Such a composite square piece 1 and a composite panel 6.6' are prepared in advance, and the composite panel 6.6' is attached to the composite square piece 1 with an adhesive 8.8' as shown in the figure. By fixing this with tapping screws 5, 5', a fireproof partition wall with a total thickness of 78.5 myns is obtained.

Note that the embodiment shown in FIGS. 6A and 8B is constructed as a fire-resistant partition wall with a fire resistance of 1 hour, and when the fire resistance time is 2 hours, the thickness of the plasterboard in the plurality of panels 6 and 6' should be It may be 12m.

The total thickness in this case is 90.5rrrIn.

[Test example]

Test Example 1 A 1-hour fire resistance heating test based on JIS-A-1304 was conducted on the fire-resistant partition wall (product 1 of the present invention) according to the example shown in FIGS. 6A and B above, and the maximum temperature on the back surface was measured.
The maximum temperature on the back surface at this time was 105° C., which was a result that passed the above JIS standard.

In addition, when we evaluated the fire resistance performance by observing the condition of one product of this invention after completing this heating test, we found that one piece of gypsum board on the heating side collapsed, but the galvanized iron plate was firmly held on the composite square material through tapped screws. Its function as a wall was not impaired.

As a comparative example, a test similar to the above was also conducted on a conventional fireproof partition wall constructed by attaching gypsum boards to both sides of an iron square.

As a result, there was no heat insulation that would allow the maximum temperature of the back surface to be measured, and most of the gypsum board collapsed and did not maintain its form as a wall.

Test Example 2 In the example shown in Fig. 6A and B, the fireproof partition wall (product 2 of the present invention) with the thickness of the gypsum board in the composite panel 6.6' was tested based on JIS-A-1304. A 2-hour fire resistance heating test was conducted.

As a result, the maximum temperature on the back surface was 120° C., and the appearance findings after the test were the same as in Test Example 1.

Test Example 3 The fireproof partition walls of the invention products 1 and 2 used in Test Examples 1 and 2 were subjected to impact resistance tests using the respective methods.

That is, first, the test object was heated for 30 minutes, then stretched over two square timbers placed on the floor, and a weight was dropped from a height of 1 m above them to examine the effect.

At that time, a 5 kg weight was used for the product 1 of the present invention, and a 10 kg weight was used for the product 2 of the present invention.

Even in the event of a fall, it was confirmed that the weight had sufficient impact resistance, with only a slight dent in the lower part of the weight.

On the other hand, when a similar test was conducted on the conventional partition wall used in Test Example 1 as a comparative example, no appreciable impact resistance was observed.

As is clear from the above test results, the fireproof partition wall of the present invention had extremely superior fireproof performance and impact resistance compared to conventional products.

〔Effect of the invention〕

As detailed above, the fireproof partition wall of the present invention has significantly improved fireproofing performance and excellent impact resistance compared to conventional products, and can be easily constructed on-site without the need for complicated labor. This has extremely beneficial effects in practice.

[Brief explanation of the drawing]

1A, B to 4A, B are explanatory diagrams showing a fireproof partition wall and its construction method according to an embodiment of the present invention.
Figure A is a vertical cross-sectional view of the composite square beam attached to the runner.
Figure B is a plan view of the same, Figure 2A is a vertical sectional view showing a composite panel attached to one side of the composite square timber, and Figure 2B is the same figure A.
Figure 3 is a perspective view showing the state in which composite square timbers are attached to the composite panel, Figure 4A is a longitudinal cross-sectional view of the constructed fireproof partition wall, and Figure 4B is a cross-sectional view taken along the line X-. Y-Y' in A of the same figure
Sectional views along the line, Figures 5A and 5B, are the same as Figure 1A.
, B to 4 are longitudinal cross-sectional views showing modifications of the embodiment shown in FIG. is an enlarged sectional view showing the main part thereof. 1...Composite square material, 2, 2', 2"...
...Plywood, 3, 3'. 3"...Gypsum board, 4,4'...Runner, 5,5'...Tapping screw, 6,6'
...Composite panel, 7゜7'... Galvanized iron plate, 8,8'... Adhesive.

Claims (1)

[Scope of utility model registration request] The wall material is a composite panel made of a steel plate with gypsum board attached to both sides, and the pillar material is a composite square material consisting of a gypsum board and at least two layers of plywood laminated through the gypsum board. fireproof partition walls.