JP2017066679A - Fireproof member and beam having fireproof member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fireproof member and a beam having the fireproof member, easily attachable-detachable to a steel beam, and capable of improving fireproof performance.SOLUTION: The present invention relates to a fireproof member 1 constructed for improving fireproof performance of a beam H being H-shaped steel. The fireproof member 1 comprises a beam insertion part 11 inserted into a beam space K1 being a space formed of both flange parts H1 and H1 and a web part H2 and a covering part 12 formed of a raw material having fireproof performance and integrally formed with the beam insertion part 11. An end part of the covering part 12 is extended so as to project more than the beam insertion part 11 in the direction over between both flange parts H1 and H1, and the covering part 12 is formed in a position for covering a header surface of the flange part H1 in a state of inserting the beam insertion part 11 into the beam space K1.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a fire-resistant member disposed on a beam and a beam provided with the fire-resistant member, and more particularly, to a fire-resistant member and a beam provided with the fire-resistant member that can satisfy a fire-proof standard with a simple configuration. It is about.

In houses, it may be required to take fire-proof measures.
For example, in a steel beam (H-shaped steel or the like), fire resistance measures are constructed in various ways so as to meet the fire resistance standards (see, for example, Patent Document 1 to Patent Document 3).
Patent Document 1 discloses a fireproof covering structure for steel materials.
In the technique of patent document 1, the structure by which a fireproof board is arrange | positioned so that the circumference | surroundings of steel materials (H-section steel) may be taken is taken.
As another example, a technique disclosed in Patent Document 2 has been proposed.
The technique of Patent Document 2 adopts a configuration in which a rectangular plate having fire resistance is fitted in a space formed between both flange portions of the H-shaped steel and the web portion.

In the technique of Patent Document 1, since it is necessary to cover the periphery of the steel material with a fire-resistant plate, there is a problem that it takes time for construction. In particular, in the case of construction on a beam approaching the outer wall, it is necessary to perform the construction work in a narrow space between the outer wall and the beam, which makes the work extremely difficult and inefficient.
If it is the technique of patent document 2, since it can construct by only inserting the rectangular plate which has fireproof performance in the space formed in both the flange parts of H-section steel, and a web part, work efficiency is favorable. It will be a thing.
However, with the method described in Patent Document 2, the flanged facet of H-shaped steel cannot be covered, and the part is exposed.
Therefore, from the viewpoint of further improving the fire resistance, it is necessary to cover the small facet.

In the technique of Patent Document 3, a sealing material having fire resistance is inserted into a space formed between both flange portions of the H-shaped steel and the web portion, and a gap is formed by applying a sealing material to the outer periphery thereof. Sealing.
Then, by extending the sealing material in the direction of the flange edge, the flange edge of the H-shaped steel is covered with the extending portion of the sealing material.

JP 2004-003288 A JP 2011-021346 A JP 2007-211404 A

As described above, the technique of Patent Document 1 has a problem in workability, and the technique of Patent Document 2 in which workability is improved has a problem that it is not possible to cover the edge of the flange portion of the H-shaped steel.
On the other hand, in patent document 3, it has taken the structure by which a flange part edge surface is coat | covered with a sealing material in the figure.
However, in the technique of Patent Document 3, it is the sealing material that covers the flange portion edge surface, not a member having fire resistance.
If it explains in detail, what is inserted in the space formed between both flange portions of the H-section steel and the web portion is a plugging material that is a member having fireproof performance, and has a fireproof structure. .
However, in this construction method, after the sealing material is inserted into the space, the sealing material is disposed so as to fill the gap. At this time, the sealing material is disposed between the inner surface of the outer wall material and the flange edge. It arrange | positions so that the space formed may be filled.
With this structure, the sealing material covers the flange portion edge surface.
That is, the construction method is a so-called wet construction method, and therefore, the plugging material cannot be attached with one touch and cannot be removed easily (in the first place, it is a construction method that is not supposed to be removed).
Moreover, it is a sealing material that covers the flange portion edge, and is different from a member having fire resistance.
Furthermore, in the technique of Patent Document 3, the seal material covers the flanged facet on the configuration of “filling the gap”. However, this configuration is not for fire resistance but to improve fire resistance performance. Not intended to contribute.
Under such a background, there has been a demand for development of a technique that can be easily and detachably attached (one-touch), and that can efficiently cover the small edge surface of the flange portion with a refractory member and improve the refractory performance.

  An object of the present invention is to solve the above-described problems, and is a refractory member that can be easily attached to and detached from a steel beam and that can improve the fire resistance performance, and a beam provided with the refractory member. Is to provide.

  According to the fire-resistant member according to claim 1, the above-described problem is constructed to improve the fire-resistant performance of a beam that is H-shaped steel, and is formed of a material having fire-resistant performance, and the beam A beam insertion portion that is inserted into a beam space that is a space formed by both the flange portion and the web portion, and a covering portion that is formed of a material having fire resistance and formed integrally with the beam insertion portion. In the state in which the beam insertion portion is inserted into the beam space, the covering portion is arranged from the beam insertion portion so as to be disposed at a position covering the small edge surface of the flange portion. It solves by extending so that it may protrude.

Thus, in the fireproof member according to the present invention, the beam insertion portion and the covering portion having fireproof performance are integrally formed, and the space formed between both flange portions of the beam and the flange portion edge of the beam are formed. At the same time, it was constructed so that it could be fireproof coated.
Since it is comprised in this way, both the flange part small edge surfaces of a beam can be reliably coat | covered with a coating | coated part, and fireproof performance can be improved more.
Moreover, since the beam insertion portion and the covering portion are formed integrally, the fire-resistant member can be disposed on the beam simply by inserting the beam insertion portion into the beam space, and the fire-resistant member can be attached and detached. It is also easy to do so, thus improving the workability when disposing a refractory member on the beam.
Thus, according to the present invention, it is possible to provide a fireproof member that can be easily attached to and detached from the beam and can improve the fireproof performance.

In the present invention, the term “integrated” is integrated as a member having fire resistance, and can be handled as “one piece” when handled (particularly when attached to a beam). It means that.
That is, the structure according to the present invention is formed by processing a notch or the like on one member having fire resistance (for example, two adjacent corner portions in a rectangular rock wool board or the like). The configuration according to the present invention is formed by notching the substantially rectangular parallelepiped shape), but the configuration according to the present invention can be formed in other modes.
For example, when manufacturing a refractory member according to the present invention, even if a separate beam insertion part and a covering part are combined, they are integrated in the manufacturing stage and handled as a finished refractory member In this case, it is sufficient if the refractory member can be handled as “one piece”.
Furthermore, it is desirable that the beam insertion portion and the covering portion are made of the same material, but not limited to this, as long as the material has fire resistance, the beam insertion portion and the covering portion have different materials. It may be used.
In other words, as described above, the beam insertion portion and the covering portion are both members having fireproof performance, and when handling as a fireproof member as a finished product, it is possible to treat the fireproof member as “one piece”. It is enough.

In this case, as a specific configuration, as described in claim 2, the beam insertion portion is a substantially rectangular parallelepiped portion, and a first surface and a second surface facing each other in a direction across the flange portions. The end portion of the covering portion extends from both the first surface and the second surface along the direction between the flange portions. It is preferable that
Furthermore, as a detailed configuration, as described in claim 3, in the covering portion, a first fore edge covering portion that extends from the first surface along a direction extending between the flange portions, A covering portion that includes a second fore edge covering portion that extends from the second surface in a direction across the flange portion, and in the direction across the flange portion, the first fore edge covering portion. The protrusion distance from the first surface and the protrusion distance from the second surface of the second fore edge covering part are formed larger than the thickness of the fore edge surfaces of both flange portions in the same direction. It is preferable.
If comprised in this way, since the small facet of both flange parts will be reliably coat | covered with the coating | coated part which has fireproof performance, fireproof performance will improve more.

  According to a fourth aspect of the present invention, a beam according to the present invention includes the fireproof member according to the first to third aspects, wherein the covering portion is a substantially rectangular parallelepiped member, and the beam insertion The beam insertion portion is formed of an elastic member, and in the beam insertion portion, the direction between the flange portions is formed. The length of the flange portion is formed to be slightly larger than the distance between the flange portions, the beam insertion portion is fitted in the beam space, and both the flange portions at the end of the covering portion. The small face is covered.

With this configuration, the beam insertion portion is fitted in the beam space, and the end surfaces of the covering portion are covered with the edge surfaces of both flange portions. The small edge surfaces of both flange portions can be efficiently covered.
In addition, the beam insertion portion is composed of an elastic member, and in the beam insertion portion, the length in the direction across both flange portions is formed slightly larger than the distance between both flange portions, The beam insertion portion can be press-fitted into the beam space and securely fitted.
In other words, pressurizing and shrinking the elastic beam insertion part, press-fitting into the beam space (between both flanges) and placing the beam insertion part in the beam space (between both flanges), then pressurizing (insertion force) When is released, the beam insertion portion is securely fitted into the beam space (between both flange portions) by the restoring force.
Therefore, the fireproof member can be attached to the beam without performing a special fastening operation.

More specifically, the beam according to the present invention is preferably applied when installed in the vicinity of the inner wall surface of the outer wall.
In particular, in the beam installed close to the outer wall, since the distance between the outer wall side end of the beam and the inner surface of the outer wall is small, it is a work of disposing a refractory member in a narrow space. Since a fire-resistant member that can be easily attached and detached is used, workability is improved.
Further, the outer wall side end of the beam and the inner side surface of the outer wall are provided with hardware and the like for connecting the beam and the outer wall, which makes the work of arranging the fireproof member more difficult, but includes a fireproof member that can be easily attached and detached. In such a case, is more suitably applied.

In the refractory member according to the present invention, the space formed between both flange portions of the beam and the flange portion edge surface of the beam can be covered with fireproof simultaneously.
In particular, it is possible to reliably cover the small edge surfaces of both flange portions of the beam, and the fire resistance can be further improved.
In addition, the fire-resistant member can be disposed on the beam simply by inserting the beam insertion portion into the beam space, and the fire-resistant member can be easily attached and detached. Improved workability.
Thus, according to the refractory member of the present invention, it can be easily attached to and detached from the beam, and the refractory performance can be improved.
Moreover, with the beam according to the present invention, it is possible to easily perform the work for installing the refractory member even when it is disposed at a place close to the outer wall, and the workability is high.

It is a perspective view which shows the refractory member and beam which concern on one Embodiment of this invention. It is explanatory drawing which shows the dimension structure of the fireproof member which concerns on one Embodiment of this invention, and a beam. It is explanatory drawing which shows the installation method of the fireproof member which concerns on one Embodiment of this invention. It is explanatory drawing which shows the accommodation at the time of arrange | positioning the fireproof member which concerns on one Embodiment of this invention. It is explanatory drawing which shows the example of a change. It is explanatory drawing which shows the X direction view of FIG.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
Note that the configuration described below does not limit the present invention and can be variously modified within the scope of the gist of the present invention.
The present embodiment relates to a fireproof member that can be easily attached to and detached from a steel beam and can improve fireproof performance.
The steel beam in which the refractory member is disposed, and the housing structure in the case where the refractory member is disposed with respect to the steel beam particularly provided in the vicinity of the outer wall will be described.

1 to 4 show an embodiment according to the present invention. FIG. 1 is a perspective view showing a refractory member and a beam, FIG. 2 is an explanatory view showing a dimensional configuration of the refractory member and the beam, and FIG. Explanatory drawing which shows the installation method of a refractory member, FIG. 4 is explanatory drawing which shows the accommodation at the time of arrange | positioning a refractory member.
FIG. 3 is an equivalent diagram of a cross section taken along line AA of FIG.
5 and 6 illustrate a second refractory member that is a modified example of the refractory member according to the present embodiment. FIG. 6 is an explanatory view showing the X direction view of FIG.

<About the structure of beams>
The beam H according to the present embodiment will be described with reference to FIG.
The beam H according to the present embodiment is an H-shaped steel, rectangular plate-shaped flange portions H1 and H1 disposed facing each other in parallel, and a web portion H2 that bridges the centers of the flange portions H1 and H1. , And is configured.
And by these structures, the vertical cross section becomes the beam of the steel material of H shape.
For convenience of explanation, assuming that a substantially rectangular parallelepiped space surrounded by two flange portions H1, H1 and a web portion H2 is a “beam space K”, there are two beam spaces K on both sides of the web portion H2. It is formed. Of the two beam spaces K thus formed, one is referred to as “first beam space K1” and the other is referred to as “second beam space K2”.
In the present embodiment, one of the two beam spaces K is disposed so as to face the inner side surface W1 of the outer wall W, but faces the inner side surface W1 of the outer wall W. The side is defined as a first beam space K1.

<About the structure of the fireproof member>
The structure of the refractory member 1 according to the present embodiment will be described with reference to FIG.
Any material can be used as the fireproof member 1 as long as the material has fireproof performance. However, the fireproof member 1 is a member having a hardness sufficient to ensure self-sustainability, and in a slightly small space. A material having an elasticity capable of being press-fitted is preferably used. In this embodiment, a rock wool board is used.
The refractory member 1 according to the present embodiment includes a beam insertion portion 11 and a covering portion 12.
In the present embodiment, the beam insertion portion 11 and the covering portion 12 are integrally formed. However, for the purpose of explaining the function of each portion, the beam insertion portion 11 and the covering portion 12 are disassembled into two portions and their names are designated. It is attached.

Further, in this specification, “integral” is integrated as a member having fire resistance, and is handled as “one piece” when handled (particularly when attached to the beam H). It means that it is possible.
In the present embodiment, in a rectangular parallelepiped fire-resistant member (rock wool board), two adjacent corner portions (corner portions formed on the side surfaces) are cut into a substantially rectangular parallelepiped shape, thereby forming a vertical cross-section convex shape. The refractory member 1 is formed.
In this way, it is best to configure the fire-resistant member 1 according to the present embodiment by cutting out the rectangular parallelepiped fire-resistant member (rock wool board). For example, when manufacturing the fire-resistant member 1 Even when the separate beam insertion portion 11 and the covering portion 12 are combined, they are integrated at the manufacturing stage and are handled as the fireproof member 1 as a finished product (particularly for the beam H). It is sufficient if the refractory member 1 can be handled as “one piece” when mounting).

Furthermore, in this embodiment, since the fireproof member 1 is formed by notching one member having fire resistance (rock wool board), the beam insertion portion 11 and the covering portion 12 are naturally the same material. Although it will be comprised by (rock wool board), as long as it is a member which has fire resistance performance not only in this, the material from which the beam insertion part 11 and the coating | coated part 12 differ may be used. .
That is, as described above, both the beam insertion portion 11 and the covering portion 12 are members having fireproof performance, and when handled as the fireproof member 1 which is a finished product (particularly when attached to the beam H), the fireproof member. It is sufficient if 1 can be treated as “one”.

The beam insertion part 11 is a part inserted into the first beam space K1, and is a substantially rectangular parallelepiped block-like part.
The length of the beam insertion portion 11 in the longitudinal direction is configured to be substantially the same as the length of the beam H in the longitudinal direction.
For the sake of explanation, the end surface that defines the upper side of the beam insertion portion 11 (the end surface that is the upper side when arranged as shown in FIG. 2) is referred to as a “first surface 11a”, and faces the first surface 11a in the vertical direction. An end surface that defines the lower side of the beam insertion portion 11 (an end surface that is the lower surface when arranged as shown in FIG. 2) is referred to as a “second surface 11b”. Further, a surface arranged so as to bridge the beam H side ends of the first surface 11a and the second surface 11b is referred to as a “third surface 11c”. In addition, since the beam insertion portion 11 and the covering portion 12 are integrally formed, there is actually no such surface and is a virtual surface, but for convenience, a surface that faces the third surface 11c. Is denoted as “fourth surface 11d”.
If it prescribes | regulates in this way, when the beam insertion part 11 is press-fit in the 1st beam space K1, the 3rd surface 11c will face the web part H2.

The covering portion 12 has substantially the same length in the longitudinal direction as the beam insertion portion 11 and a height greater than the height of the beam insertion portion 11 (distance in the vertical direction: distance in the direction connecting the flange portions H1 and H1). It is a rectangular parallelepiped block-like portion having a thickness smaller than that of the beam insertion portion 11.
The covering portion 12 is disposed on the fourth surface 11 d side of the beam insertion portion 11.
That is, it is arranged on the surface (virtual surface) side far from the beam H.
Then, both end portions of the covering portion 12 in the vertical direction (direction in which the flange portions H1 and H1 are connected) are configured to protrude above and below the beam insertion portion 11.
That is, the upper end side of the covering portion 12 protrudes upward from the first surface 11 a of the beam insertion portion 11, and the lower end side of the covering portion 12 protrudes downward from the second surface 11 b of the beam insertion portion 11. Yes.
A portion of the covering portion 12 that protrudes upward from the first surface 11 a of the beam insertion portion 11 (a rectangular parallelepiped portion) is referred to as a “first fore edge covering portion 12 a”, and the second surface of the beam insertion portion 11. A portion projecting downward from 11b (which has a rectangular parallelepiped shape) is referred to as a “second fore edge covering portion 12b”.

The refractory member 1 having a longitudinal section of a figure obtained by rotating a convex character by 90 ° is constituted by the beam insertion portion 11 and the covering portion 12 configured as described above.
The configuration of the refractory member 1 including the relationship with the beam H will be described in more detail with reference to FIG.
As shown in FIG. 2, the height (vertical direction distance) t7 of the covering portion 12 is the distance between the height (vertical direction distance) t4 of the beam insertion portion 11 and the flange portions H1 and H1 of the beam H (that is, the first distance). The height of the single beam space K1 is greater than t1.
The height t4 of the beam insertion portion 11 is configured to be slightly larger than the distance between the flange portions H1 and H1 of the beam H (that is, the height of the first beam space K1) t1. This “slightly large” means that the beam insertion portion 11 is configured “slightly” large enough to be press-fitted into the first beam space K1.

Further, the first fore edge covering part 12a and the second fore edge covering part 12b constituting the covering part 12 are configured to have the same height (height t6).
That is, it is configured such that height t7 = height t4 + 2 × height t6.
Further, the height t6 of the first fore edge covering part 12a and the second fore edge covering part 12b is configured to be the same as or slightly larger than the height t3 of the fore edge surface H11 of the flange part H1.
In the present embodiment, the thickness t5 of the beam insertion portion 11 is smaller than the width t2 of the first beam space K1.
As will be described later, with this configuration, when the beam insertion portion 11 is inserted into the first beam space K1, a gap K11 is formed between the first surface 11a and the web portion H2.

<Method and arrangement of fireproof member>
With reference to FIG. 3, a method of arranging the fireproof member 1 will be described.
As shown in FIG. 3A, the beam insertion portion 11 is press-fitted into the first beam space K1.
As described above, the height t4 of the beam insertion portion 11 is configured to be slightly larger than the height t1 of the first beam space K1, and an operator applies a force in the beam H direction, 11 will be press-fitted.

Further, when the beam insertion portion 11 is press-fitted into the first beam space K1 in this way, the beam insertion portion 11 is fitted into the first beam space K1 (between both flange portions H1 and H1) by the restoring force of the beam insertion portion 11. As shown in FIG. 3B, the first fore edge covering portion 12a and the second fore edge covering portion 12b (specifically, the surfaces facing the beam H side) abut against the fore edge surface H11 of the flange portion H1. .
That is, the fore edge surfaces H11 and H11 are covered by the first fore edge covering part 12a and the second fore edge covering part 12b.
As described above, the refractory member 1 according to the present embodiment is press-fitted and fixed in the first beam space K1 and is fixed by a wet method using a sealing material, even if it is fixed using a hardware or the like. not.
Therefore, the refractory member 1 according to this embodiment can be attached to and detached from the beam H, and after the refractory member 1 is arranged in the first beam space K1, it can be removed or slightly shifted for fine adjustment or the like. Can do. For this reason, workability | operativity is favorable.

Furthermore, as described above, when the beam insertion portion 11 is inserted into the first beam space K1, a gap K11 is formed between the first surface 11a and the web portion H2.
With this configuration, the gap K11 can be used as, for example, a space for arranging wiring.
In other words, the beam insertion portion 11 is sufficient if the necessary minimum thickness t5 that satisfies the fire resistance standard is ensured. Thus, the beam insertion portion 11 is advantageous in terms of cost by being accommodated in a necessary size.
Of course, the thickness t5 of the beam insertion portion 11 may be substantially the same as the width t2 of the first beam space K1, and the beam insertion portion 11 may completely fill the first beam space K1.

<Containment of beams with fireproof members>
Next, referring to FIG. 4, an example of accommodation using the refractory member 1 according to the present embodiment will be described.
As shown in FIG. 4, the refractory member 1 according to the present embodiment is particularly preferably used in a beam H installed at a location close to the outer wall W.
In such a storage, there may be only a slight gap between the inner side surface W1 of the outer wall W and the flange H1 end (outer wall W side end) of the beam H (in the example of FIG. 4). Has only a gap of about 10 cm).
Further, as shown in FIG. 4, the outer wall W is supported by a fixed hardware P fixed to the flange portion H <b> 1 of the beam H.

As described above, the space between the inner side surface W1 of the outer wall W and the flange H1 end of the beam H (end on the outer wall W side) is a narrow space, and a plurality of fixed metal fittings P that connect the outer wall W and the beam H are disposed. Has been.
In such a housing, it is very difficult to dispose a member having fire resistance according to the prior art. In addition, specialized tools and specialized workers are required for construction.
However, since the refractory member 1 according to the present embodiment can be disposed simply by press-fitting the beam insertion portion 11 into the first beam space K1, no special tools or specialized workers are required.

Further, in the conventional method in which a rectangular parallelepiped fire-resistant member is fitted in the first beam space K1, the small edge surface H11 of the flange portion H1 cannot be covered with fire resistance.
However, with the fireproof member 1 according to the present embodiment, it is possible to cover the small edge surfaces H11 and H11 of the flange portion H1 with the fireproof performance by the first small edge covering portion 12a and the second small edge covering portion 12b.
And if it is the structure which concerns on this embodiment, if the beam insertion part 11 is press-fit in the 1st beam space K1, the 1st edge covering part 12a and the 2nd edge covering part 12b will be automatically the edge surface of the flange part H1. The coating is completed by contacting H11 and H11.
Therefore, it is possible to ensure effective fire resistance performance with simple work.

<Modification example>
A modification example will be described with reference to FIGS. 6 shows a view in the X direction of FIG. 5, but FIG. 5 corresponds to a cross-sectional view taken along line BB of FIG.
In the second refractory member 101 according to the modified example, as shown in FIG. 5A, a locking projection 21 protruding upward is formed on the first surface 11a (the surface corresponding to the top surface in FIG. 5). .

An example of the formation of the locking projection 21 is shown in FIG.
FIG. 6 is an explanatory view showing the X direction view of FIG.
As shown to Fig.6 (a), the latching protrusion 21 can be formed as a protrusion formed in elongate along the longitudinal direction.
Further, as shown in FIG. 6 (b), a plurality of protrusions may be formed at a predetermined interval, or as shown in FIG. 6 (c), one protrusion is provided near the central portion in the longitudinal direction. May be.

In addition, the formation example of this latching protrusion 21 is an example, and it cannot be overemphasized that the number of formation, arrangement | sequence, shape, etc. can be variously changed.
That is, a plurality of locking protrusions 21 that are not the same shape may be formed, and as a shape, the locking protrusions 21 may protrude in a circular dome shape, for example. In addition, a plurality of intervals may be randomly formed instead of being formed at equal intervals.
In other words, any shape or configuration that fits into the first beam space K1 is merely a design change accompanying the implementation of the technology of this configuration.

In addition, although illustration is abbreviate | omitted, the said latching protrusion 21 may of course be formed so that it may protrude below on the 2nd surface 11b (surface which is a bottom face in FIG. 5).
Moreover, as shown in FIG.5 (b), the structure by which the latching protrusions 21 and 21 were formed in the 1st surface 11a and the 2nd surface 11b may be sufficient.
This configuration is preferable because the fitting force of the beam insertion portion 11 to the first beam space K1 is increased.

As described above, the refractory member 1 and the second refractory member 101 according to the above-described embodiment are fitted in the first beam space K in the beam insertion portion 11, and the edge of the flange portions H <b> 1 and H <b> 1 in the covering portion 12. The surfaces H11 and H11 can be covered.
For this reason, the refractory member 1 and the second refractory member 101 are easy to attach and detach, and no expertise is required for construction.
Moreover, the beam insertion part 11 and the coating | coated part 12 are formed integrally, and are comprised with the member which has both fireproof performance. And since the small edge surfaces H11 and H11 of the flange parts H1 and H1 can be coat | covered with the part (covering part 12) which has fireproof performance, fireproof performance will become more excellent.

DESCRIPTION OF SYMBOLS 1 Refractory member 11 Beam insertion part 11a 1st surface 11b 2nd surface 11c 3rd surface 11d 4th surface 12 Covering part 12a 1st fore edge covering part 12b 2nd fore edge covering part 101 2nd refractory member 21 Locking protrusion H Beam H1 Flange part H11 Small edge H2 Web part K Beam space K1 First beam space K11 Gap K2 Second beam space P Fixed hardware W Outer wall W1 Inner side W2 Outer side

Claims (5)

It is constructed to improve the fireproof performance of the beam that is H-shaped steel,
A beam insertion portion that is formed of a material having fire resistance and is inserted into a beam space that is a space formed by both flange portions and the web portion of the beam,
It is formed of a material having fire resistance, and includes a covering portion formed integrally with the beam insertion portion,
In the state where the beam insertion portion is inserted into the beam space, the covering portion extends so as to protrude from the beam insertion portion so as to be disposed at a position covering the small edge surface of the flange portion. A fireproof member characterized by that. The beam insertion portion is a substantially rectangular parallelepiped portion,
It has a first side and a second side facing each other in the direction across both the flange parts, and is configured.
2. The refractory member according to claim 1, wherein an end portion of the covering portion extends from both the first surface and the second surface along a direction between both the flange portions. . In the covering portion, a first fore edge covering portion extending from the first surface along the direction between the flange portions,
In the covering portion, comprising a second fore edge covering portion that extends from the second surface along the direction between the flange portions,
In the direction across both flanges,
The protruding distance from the first surface of the first fore edge covering part and the protruding distance from the second surface of the second fore edge covering part are:
The refractory member according to claim 2, wherein the refractory member is formed to be larger than a thickness of a facet of both the flange portions in the same direction. The fireproof member according to claim 1 to claim 3,
The covering portion is a substantially rectangular parallelepiped member, and is formed on the opposite side to the beam insertion side in the beam insertion portion,
The beam insertion portion is made of an elastic member, and the length of the beam insertion portion in the direction across the flange portions is slightly larger than the distance between the flange portions. ,
The beam is characterized in that the beam insertion portion is fitted in the beam space, and the edge surfaces of both the flange portions are covered at the end portion of the covering portion. The beam according to claim 4, wherein the beam is installed close to the inner wall surface of the outer wall.

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