JPH06229036A - Fire resistive construction of building - Google Patents

Abstract

PURPOSE:To ensure the easy erection of an interior wall, reduce cost, keep a fire resistive material hardly damaged, and enable the specification of the material to be simplified. CONSTITUTION:Exterior walls 12 and 22 are erected outside the adjacent columns 11 and 21 of adjacent building units 10 and 20, and a calcium silicate board 6 is provided inside the columns 11 and 21 in such a way as striding over them and faced to the exterior wall 22 or the like. In addition, side calcium silicate boards 2 and 2 are laid at both ends of the calcium silicate board 6 for concealing the outside of the columns 11 and 21. Furthermore, ceramic fibers 7 compressed with the calcium silicate boards 2 are fitted between the boards 2 and 2, and the columns 11 and 21. The adjacent columns 11 and 21 of the adjacent building units 10 and 20 are covered to resist fire with the board 6 or the like.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fireproof structure of a building,
In particular, it can be used when covering the pillars of building units with refractory materials.

[0002]

BACKGROUND ART In recent years, many unit-type buildings such as houses in which a plurality of building units and roof units produced in advance in a factory are combined together at a construction site are built. By the way, a building unit has four columns at four corners, and a frame composed of an upper beam and a lower beam connecting the upper ends and the lower ends of these columns to each other. Attached, it is configured in a box shape.

Among such unit-type buildings, three-story or more buildings for use in apartment houses, hospitals, hotels, etc., have columns, beams, floors, walls, in accordance with the Building Standards Act.
It is required that main structural parts such as a roof have a fireproof structure having a predetermined fireproof performance. Therefore, in general, the floor material, the ceiling material and the wall material are made of a refractory material, the roof is also made of a refractory material, and the pillars and beams are covered with the refractory material to meet the above requirement.

As an example of a conventional refractory structure in which main structural materials such as columns and beams of a building unit constituting a unit-type building are covered with refractory materials, for example, the structure shown in FIG. 4 and FIG.
The structure shown in is known.

In the structure (1), outer walls 12 and 22 are attached to the outer sides of the adjacent columns 11 and 21 of the adjacent building units 10 and 20 constituting the unitary building 30, respectively.
Asbestos-cement calcium silicate board (hereinafter referred to as “calcium board”) 1 as a refractory material is attached by nailing or the like to the inner side surfaces of the pillars 11 and 21 facing 12 and 22, straddling them. The side surface calical plates 2 and 2 are attached to both ends of the calical plate 1, and the side surface calical plates 2 and 2 cover the side surfaces of the columns 11 and 21, respectively.
One end is formed so as to abut the outer walls 12 and 22.

Outside the side surface calical plates 2 and 2, prismatic auxiliary calical plates 3 and 3 are fixed to the outer walls 12 and 22 by nailing. One side surface of the auxiliary calcareous plates 3 and 3 is in contact with the outer side surface of the lateral calcareous plates 2 and 2, and therefore, when the outer walls 12 and 22 are warped due to heat, for example, in the event of a fire. It can slide relatively. Such an auxiliary calikal plate 3 is used as an outer wall.
When the 12 and 22 bend back, even if they slide relative to the side surface calcareous plate 2, the size of the two and 3 does not come off, for example, a prism having a cross section of about 50 cm square is used. . And, with such an auxiliary calikal plate 3, the pillar
Fire is prevented from entering through gaps between the outer walls 12 and 22 and the outer walls 12 and 22 that are warped. A seal member 14 is embedded in the gap between the outer walls 12 and 22 via a backup material 13.

In the structure of (1), the auxiliary silica sheet 3 is provided inside the side silica sheet 2, that is, sandwiched between the columns 11 and 21 and the side silica sheet 2. In FIGS. 3 and 4, reference numeral 4 is an inner wall.

[0008]

However, in the above-mentioned structure, since the prismatic auxiliary silica plate 3 is provided so as to project to the outside of the side surface calika plate 2, the projection is made when the inner wall 4 is attached. In order to engage with the auxiliary calcareous plate 3, it is necessary to cut out the inner wall 4, and there is a problem that the work is troublesome. In addition, the prismatic auxiliary silica sheet 2 has a problem of high cost.

In the structure (1), no notch is required in the inner wall 4, but since the auxiliary silica plate 3 is located inside the side surface silica plate 2, the space of the silica plate 1 straddling the two columns 11 and 21 is eliminated. The length is increased by the length of the auxiliary calcareous plate 3. As a result, the refractory portion occupies a large portion, the cost becomes high, and since the size of the auxiliary calical plate 3 is not supported anywhere, the calical plate 1 is easily cracked, which is disadvantageous structurally. In addition, in any of the above cases, in addition to the cali cal plate 1 and the side cali cal plate 2, the auxiliary cali cal plate 3 made of the same material as these is required, which causes a problem that the specifications are complicated.

It is an object of the present invention to provide a fireproof structure for a building, in which the inner wall can be easily attached and the cost is low, the refractory material is not easily damaged, and the specifications of the fireproof material can be simplified. Especially.

[0011]

SUMMARY OF THE INVENTION Therefore, in the fireproof structure of a building in which a pillar of a building is covered with a refractory material, the present invention is directed to an outer wall provided outside the pillar, and to the pillar while being orthogonal to the outer wall. A refractory material that is attached and covers the other outside of the pillar, and a soft refractory material that is fixed to the inner surface of the outer wall and is interposed between the refractory material and the pillar by being compressed by the refractory material. It is a fireproof structure of the building provided.

[0012]

In the present invention as described above, the outer side of the pillar of the building is covered with the outer wall, and the other outer side is covered with the refractory material sandwiching the soft refractory material fixed to the inner surface of the outer wall. Since there is no protrusion on the outside of the refractory material and the notch of the inner wall is unnecessary, the inner wall can be easily attached. Also, since the soft refractory material is compressed and attached by the side surface refractory material, the gap between the pillar and the refractory material is reduced and it is less likely to be damaged.Furthermore, the auxiliary silica sheet is not required and the specifications can be simplified. According to the above, the above object is achieved.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 show a fireproof structure of a building according to this embodiment. In this embodiment, the adjacent columns 11 and 21 of the adjacent building units 10 and 20 in the unit-type building 30 have a fireproof structure. That is, the outer walls 12 and 22 attached by the fixtures not shown are attached to the outsides of the adjacent columns 11 and 21 of the building units 10 and 20, respectively. Pillar 11,
On the outer side of the other side of 21, a caulking plate 6 as a refractory material, which is arranged so as to face the outer wall 22 and is mounted across the adjacent pillars 11 and 21 of the building units 10 and 20, and this caulking plate. 6 and outer walls 22 and the like, and side surface calical plates 2 and 2 which are provided at both ends of the calical plate 6 and cover the outer sides of the columns 11 and 21 with each other. Between the side surface calical plates 2 and 2 and the pillars 11 and 21, a ceramic fiber 7 as a soft refractory material fixed to the outer wall 22 or the like is interposed by being compressed in the side surface calical plate 2. In addition, the same reference numerals are given to the same structural members as those in the above-mentioned prior art.

The width of the calcareous plate 6 is formed slightly wider than the space between the columns 11 and 21, and the length is formed over the entire length of the columns 21 and the like. Such a calik board 6
Are fixed to the columns 11 and 21 by nails 8 and the like which are driven in at a predetermined interval in the vertical direction.

The side face calikal plate 2 compresses and sandwiches the ceramic fiber 7 between the pillars 11 and 21, and is fixed to both ends of the calikal plate 6 by nails 8 which are vertically driven at predetermined intervals. In addition, the other end of the side surface calical plate 2 is in contact with the outer wall 22 and the like.

The ceramic fiber 7 is attached in place of the conventional auxiliary calcareous plate 3. For example, a ceramic fiber having a thickness of about 6 to 15 mm is used, and one side of the L-shaped section is the outer wall 22 or the like. The nail 8 and the like are driven in to be attached, and the other side is the pillar 21 between the pillar 21 and the outer wall 22 and the like.
And the side surface calical plate 2 have a thickness of, for example, 5 to
It is compressed and sandwiched to about 10 mm.

In this embodiment as described above, the building unit 20
When the outer wall 22 or the like is attached to the skeleton, etc., the ceramic fiber 8 is sandwiched between the columns 11 and 21 and the outer walls 12 and 22, respectively. After a plurality of such building units 20 and the like are combined, a caulking plate 6 that straddles the pillars 10 and 20 of the adjoining building units 20 and the like is attached. The ceramic fiber 7 is compressed and sandwiched between them to attach the side surface calcareous plate 2, and the pillars 11 and 21 of the building units 10 and 20 in the unit-type building 30 have a fireproof structure.

According to this embodiment as described above, the following effects can be obtained. That is, the ceramic fiber 7 is provided inside the side surface calical plate 2 in a compressed state, and since there is no protrusion on the outside of the side surface calical plate 2, there is an effect that the notch processing of the inner wall 4 becomes unnecessary.

Further, since the ceramic fiber 7 is provided inside the side surface calical plate 2 by being compressed, the distance between the side surface calical plate 2 and the columns 11 and 21 can be remarkably narrowed as compared with the conventional technique. Therefore, the width of the calcareous plate 6 can be suppressed to the necessary minimum, and the fireproof structure can be made compact.

Further, although the ceramic fiber 7 is interposed between the side surface calical plate 2 and the pillars 11 and 21, since it is compressed, the gap between the two is extremely small, and therefore the calical plate 6 is damaged. It became difficult.

Further, in this embodiment, the ceramic fiber 7 is attached instead of the conventional auxiliary calical plate 3, but since it is soft, it can be easily handled and manufactured compared to the auxiliary calical plate 3, and the manufacturing thereof is easy. Only the calical plate 6 and the lateral calical plate 2 are troublesome. Therefore, there is an effect that the specifications are simplified.

Further, in the pillars 11 and 21 of the building units 10 and 20 in the unit type building 30 having the above-mentioned fireproof structure,
As a result of conducting the fire resistance test for 1 hour, as shown in FIG.
The outer wall 22 etc. bends back against the pillar 21 etc.
Slid along the outside of the ceramic fiber 7, but did not come off from the ceramic fiber 7. Therefore, no gap was generated between the ceramic fiber 7 and the side-face calical plate 2, the invasion of fire was completely prevented, and the fire resistance test for 1 hour was passed.

The present invention is not limited to the above-mentioned embodiments, but includes the following modifications. That is, in the above embodiment, the ceramic fiber 7
Is attached to the outer wall 22 or the like by the nail 8 or the like, but is not limited to this, and may be fixed by an adhesive, for example.

Further, in the above-mentioned embodiment, the building units 10 adjacent to each other in the unit type building 30 are used as the fireproof structure of the building.
Although the example is shown in which 20 adjacent columns 11 and 21 are covered, the present invention is not limited to this. For example, as shown in FIG.
It can also be used for coating. In FIG. 3, one side of the ceramic fibers 52, 52 is fixed inside the outer walls 53, 53, and the other side is provided between the calical plates 54, 55 and the column 51 in a compressed manner. By doing so, even if the outer wall 53 warps and a gap is formed between the outer wall 53 and the column 51 in the event of a fire, one side of the ceramic fibers 52, 52 closes the gap, so there is no intrusion of fire on the column 51 side. Therefore, there is an effect that the pillars 51 of the building unit 50 are sufficiently fire-resistant.

Further, although the building units 10 and 20 in the unit-type building 30 have been described as the fireproof structure of the building in the above-mentioned embodiment, the building units may not necessarily be building units, and may be used, for example, in a building by a frame construction method or the like. it can.

In addition, the specific structure, shape and the like for carrying out the present invention may be other structures and the like as long as the object of the present invention can be achieved.

[0027]

As described above, according to the fireproof structure for a building of the present invention, it is easy to attach the inner wall and the cost is low, and the fireproof material is not easily damaged.
This has the effect of simplifying the specifications of the refractory material.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a part of a fireproof structure of a building according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state in which the outer wall is warped in a fire or the like in the fireproof structure of the building.

FIG. 3 is a cross-sectional view showing a modified example of the fireproof structure of the building.

FIG. 4 is a cross-sectional view showing a conventional example of a fireproof structure of a building.

FIG. 5 is a cross-sectional view showing another conventional example of a fireproof structure of a building.

[Explanation of symbols]

 2 Side-faced silica plate (fireproof material) 4 Inner wall 6 Caical board (fireproof material) 7 Ceramic fiber (soft fireproof material) 11,21 columns 30 Unit type building

Claims (1)

[Claims] 1. A fireproof structure for a building, in which a pillar of a building is covered with a refractory material, and an outer wall provided outside the pillar, and an outer wall that is orthogonal to the outer wall and is attached to the pillar and covers the other outside of the pillar. And a soft refractory material fixed to the inner surface of the outer wall and interposed between the refractory material and the pillar by being compressed by the refractory material and interposed. Fireproof structure of the building.