JP6990535B2 - Fireproof partition wall - Google Patents

Description

The present invention relates to a refractory partition wall.

As a structure of a refractory partition wall for partitioning an internal space of a building, a structure as shown in Patent Document 1 is known. There are multiple fireproof partition walls of this type erected in an aligned state between the upper runner fixed to the ceiling slab (framework) of the building and the lower runner fixed to the floor slab (framework). A pair of wall members, each of which is fixed to the stud and faces each other so as to sandwich the stud.

The wall surface member is a member that constitutes the wall surface of the refractory partition wall, and includes a plurality of underlaying surface materials fixed to the studs and a plurality of upholstering surface materials that are overlapped with the underlaying surface materials from the outside. The underlaying surface material and the upholstering surface material are each made of gypsum board or the like having excellent fire resistance, and a plurality of each are built in and arranged so as to form one wall surface.

Japanese Unexamined Patent Publication No. 2002-4455

Although the conventional fire-resistant partition wall has excellent fire resistance, it has a so-called single-sided two-sided double-sided structure in which two face materials are used as wall member on both sides with studs in between. Therefore, the conventional refractory partition wall has a large number of parts, and there is room for improvement in workability (machining work, mounting work, etc.) and cost.

An object of the present invention is to provide a fire-resistant partition wall having a single-sided single-sided double-sided structure and excellent fire resistance.

The fireproof partition wall according to the present invention is formed between the upper runner fixed to the ceiling frame of the building, the lower runner fixed to the floor frame of the building, and the upper runner and the lower runner. The wall member includes a plurality of studs erected in an aligned state while maintaining a distance from each other, and a pair of wall members each fixed to the stud and arranged on both sides with the stud in between. Has a plurality of face materials arranged so that adjacent ends adjacent to each other in the vertical direction are abutted against each other, and has a strip shape that crosses the plurality of the studs, and the end portions adjacent to each other in the vertical direction are adjacent to each other. A strip-shaped main body that is attached to the stud together with the end portion so as to cover the horizontal joints formed between the two from the back side, and the strip-shaped main body portion that stands up from the strip-shaped main body portion toward the front side of the face material and has the back side to the horizontal joint. It comprises a seam member having an insertion portion inserted from.

In the refractory partition wall, the ends of the facing materials that are adjacent to each other in the vertical direction are fixed in a row so as to be spaced apart from each other in the extending direction of the strip-shaped main body. It is preferable that they are connected to each other by being fixed to the strip-shaped main body by each member.

In the refractory partition wall, the distance between the adjacent fixing members is preferably set to 200 mm to 400 mm.

In the refractory partition wall, it is preferable that the height of the insertion portion from the strip-shaped main body portion is set so as not to protrude to the front side from between the end portions adjacent to each other in the vertical direction.

In the refractory partition wall, the seam member is preferably made of a single metal plate material that has been bent.

In the refractory partition wall, it is preferable that the face material is made of gypsum board.

According to the present invention, it is possible to provide a fire-resistant partition wall having a single-sided single-sided double-sided structure and excellent fire resistance.

Partial fracture perspective view of the refractory partition wall of the first embodiment A-A'line cross-sectional view of FIG. BB'line cross-sectional view of FIG. FIG. 1 is a cross-sectional view taken along the line CC'. FIG. 1 is a cross-sectional view taken along the line DD'. Cross-sectional view of the seam member cut in the lateral direction Enlarged cross-sectional view showing a state in which the seam members are attached to the ends of adjacent face materials in the vertical direction from the back side. Partial determination perspective view of the refractory partition wall of the second embodiment Cross-sectional view of the seam member according to another embodiment cut in the lateral direction. Explanatory drawing schematically showing the process of attaching the seam member of FIG. 9 to the end portion on the long side side of the face material.

[Embodiment 1]
Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 7. FIG. 1 is a partially broken perspective view of the refractory partition wall 1 of the first embodiment. The fireproof partition wall 1 is a wall-shaped structure that partitions the internal space of a building (for example, a reinforced concrete building).

As shown in FIG. 1, the refractory partition wall 1 is formed between the ceiling skeleton (ceiling slab) 2 and the floor skeleton (floor slab) 3 of the building. The refractory partition wall 1 is constructed via an upper runner 4 arranged on the surface (ceiling surface) of the ceiling frame 2 and a lower runner 5 arranged on the surface (floor surface) of the floor frame 3. It can be attached inside an object.

The upper runner 4 and the lower runner 5 are bent so that both side edges of a metal plate material (for example, a hot-dip galvanized steel plate having a plate thickness of 0.4 mm) stand upright, and a groove is formed inside. It consists of a U-shaped product. The upper runner 4 and the lower runner 5 have an elongated shape extending in the horizontal direction as a whole. The upper runner 4 has a groove facing downward and is fixed to the surface of the ceiling frame 2 by using a locking tool such as a runner fixing pin. On the other hand, in the lower runner 5, the groove is fixed to the surface of the floor frame 2 by using a locking tool such as a runner fixing pin. The upper runner 4 and the lower runner 5 are arranged in parallel while facing each other on the surface of the ceiling skeleton 2 and the surface of the floor skeleton 3, respectively.

Further, the refractory partition wall 1 includes a plurality of studs 6. The studs 6 are erected between the ceiling skeleton 2 and the floor skeleton 3 of the building in an aligned state while maintaining a distance from each other. The stud 6 is a member formed by processing a metal plate material (for example, a hot-dip galvanized steel plate having a plate thickness of 0.4 mm) into a substantially U shape, and is generally along the vertical direction (vertical direction). It has an elongated elongated shape. The upper end of the stud 6 is positioned on the ceiling frame 2 side while being inserted into the groove of the upper runner 4, and the lower end of the stud 6 is inserted into the groove of the lower runner 5 and the floor. It is positioned while being placed on the skeleton 3. In this way, the plurality of studs 6 are erected between the ceiling skeleton 2 and the floor skeleton 3 in a state of being arranged in a row at equal intervals.

As shown in FIG. 1, a spacer 7 is attached to the opening portion of the stud 6. A plurality of spacers 7 are provided for one stud 6 at predetermined intervals along the longitudinal direction. In each stud 6, the height position of the spacer 7 is set to be the same. Further, a longitudinal steady rest 8 is formed so as to cross each of the studs 6 arranged in a row. The steady rest 8 is fixed to each spacer 7 at the same height position of each stud 6, and is arranged along the horizontal direction so as to penetrate the inside of each stud 6.

A pair of wall surface members 9A and 9B are fixed to the studs 6 arranged in a row as described above. Note that FIG. 1 shows only one of the pair of wall surface members 9A and 9B arranged on the front side for convenience of explanation. FIG. 2 is a cross-sectional view taken along the line AA'of FIG. FIG. 2 shows a cross-sectional view of the refractory partition wall 1 cut in the horizontal direction. As shown in FIG. 2, wall surface members 9A and 9B are arranged on both sides of the stud 6 in between. The wall surface members 9A and 9B are fixed to the studs 6, respectively.

3 is a cross-sectional view taken along the line BB'in FIG. 1, FIG. 4 is a cross-sectional view taken along the line CC'in FIG. 1, and FIG. 5 is a cross-sectional view taken along the line DD' in FIG. Is.

The wall surface members 9A and 9B are each constructed so that a plurality of face materials 91 form one wall surface. That is, each wall surface member 9A and 9B is composed of a collection of a plurality of face materials 91 arranged so as to form one wall surface. In this specification, in the wall surface members 9A and 9B, the side facing the stud 6 is the back side (inside), and the opposite side is the front side (outside).

The face material 91 is a rectangular plate-shaped member. The face material 91 of the present embodiment is made of a reinforced gypsum board (an example of gypsum board) having a long side length of 1820 mm, a short side length of 606 mm, and a thickness of 25 mm. The ends 91a and 91b on the long side of the face material 91 have so-called bevel edges, and the corners on the front side are chamfered. On the other hand, the ends 91c and 91d on the short side of the face material 91 have so-called square edges and have a straight and flat shape.

Each face member 91 constituting the wall surface members 9A and 9B is fixed to the stud 6 by using a fixing member (for example, a tapping screw and a screw) 10. The fixing member 10 is inserted from the front side to the back side of the face material 91. The face material 91 is fixed to the stud 6 in a so-called horizontal state. That is, the face member 91 is fixed to the stud 6 so that the long side side is along the horizontal direction and the short side side is along the vertical direction. In the case of this embodiment, three studs 6 are used to fix one face material 91. Of the three side-by-side studs 6, the end portion 91c on one short side of the face material 91 is fixed to the stud 6 arranged at one end, and the end portion 91c on the other end is fixed to the stud 6 arranged at the other end. The other end on the short side side 91d is fixed. Then, the central portion on the long side of the face material 91 is fixed to the stud 6 arranged in the center.

As shown in FIGS. 1 and 4, the face members 91 constituting the wall surface member 9A are arranged in a state where the end portions 91a and 91b adjacent to each other in the vertical direction are abutted against each other. Further, as shown in FIG. 2, the face members 91 are arranged so that the end portions 91c and 91d adjacent to each other in the left-right direction are also abutted against each other.

As shown in FIG. 3, the gap between the upper ends of the wall surface members 9A and 9B and the ceiling frame 2 is filled with an end treatment material (for example, an acrylic resin sealing material). Further, as shown in FIG. 5, the gap between the lower ends of the wall surface members 9A and 9B and the floor frame 3 is also filled with an end treatment material (for example, an acrylic resin sealing material). ..

A heat insulating material (for example, glass wool) 13 is filled between the wall surface member 9A and the wall surface member 9B. Although only a part of the heat insulating material 13 is shown in FIG. 5, it is actually provided between the wall surface member 9A and the wall surface member 9B so as to completely cover the inner wall surface of the wall surface member 9B. ing.

In the refractory partition wall 1, the ends 91a and 91b of the face members 91 adjacent to each other in the vertical direction are fixed to the stud 6 together with the seam member 14 by using the fixing member 10. The seam member 14 is an elongated (strip-shaped) member extending along the horizontal direction as a whole, and is attached so as to be spread between adjacent studs 6. In the case of the present embodiment, the seam members 14 are arranged along the horizontal direction so as to cross the studs 6 arranged in a row.

The seam member 14 is provided along the horizontal joints X of the wall surface members 9A and 9B. Therefore, a plurality of seam members 14 are assigned to one wall surface member 9A (or wall surface member 9B) so as to be arranged in parallel in the vertical direction. The seam member 14 is fixed to the stud 6 and the wall surface members 9A and 9B so as to be sandwiched between the stud 6 and the wall surface member 9A and between the stud 6 and the wall surface member 9B.

The seam member 14 is made of a metal plate material (for example, a hot-dip galvanized steel plate having a plate thickness of 0.5 mm) processed into a predetermined shape. FIG. 6 is a cross-sectional view of the seam member 14 cut in the lateral direction.

The seam member 14 includes a strip-shaped main body portion 140 and an insertion portion 141. The strip-shaped main body portion 140 is a strip-shaped portion that extends long in the horizontal direction, and is a portion that is attached to each stud 6 so as to be passed between adjacent studs 6. The insertion portion 141 is a portion that stands up from the strip-shaped main body portion 140 and is inserted from the back side into the horizontal joint X (that is, between the end portions 91a and 91 of the face members 91 that are adjacent to each other in the vertical direction).

As shown in FIG. 6, the strip-shaped main body portion 140 of the seam member 14 is the upper strip-shaped portion 140a addressed to the upper end portion 91b of the end portions 91a and 91b of the face materials 91 adjacent to each other in the vertical direction. , A lower strip-shaped portion 140b addressed to the lower end 91a. In the case of the present embodiment, the upper strip-shaped portion 140a and the lower strip-shaped portion 140b are set to have the same width (the length of the seam member 14 in the lateral direction). In another embodiment, the widths of the upper strip 140a and the lower strip 140b may be different from each other.

The seam member 14 of the present embodiment has an angle θ1 formed between the upper strip-shaped portion 140a and the lower strip-shaped portion 140b in a state before being attached to the respective end portions 91a and 91b of the stud 6 and the face material 91. , 180 °. That is, the upper strip 140a and the lower strip 140b are in a straightened state. In the case of the present embodiment, the insertion portion 141 is provided at the center of the seam member 14 in the lateral direction.

The seam member 14 of the present embodiment is made of a single metal plate material that has been bent. Therefore, the insertion portion 141 of the seam member 14 is composed of a portion in which a metal plate material is folded into a mountain. With the insertion portion 141 having such a configuration, for example, when a force is applied to the seam member 14 so that the upper strip-shaped portion 140a and the lower strip-shaped portion 140b are separated from each other, the insertion portion 141 has the upper strip-shaped portion 141. It can be slightly expanded by being pulled by the 140a and the lower band-shaped portion 140b. Therefore, even when the face material 91 shrinks due to evaporation of water in the face material (reinforced gypsum board) 91, the seam member 14 is in close contact with the face material 91 without any gap.

FIG. 7 is an enlarged cross-sectional view showing a state in which the seam member 14 is attached to the ends 91a and 91b of the facing members 91 adjacent to each other in the vertical direction from the back side. The seam member 14 is fixed from the back side of the face material 91 to the end portions 91a and 91b on the long side of the face material 91 adjacent to each other in the vertical direction by a fixing member (for example, a tapping screw and a screw) 10. Further, the seam member 14 is fixed to the stud 6 by the fixing member 10 in a state of being fixed to the end portions 91a and 91b. That is, the fixing member 10 fastens the end portions 91a and 91b on the long side of the face material 91 and the strip-shaped main body portion 140 of the seam member 14 together with respect to the stud 6. The fixing member 10 is inserted from the front side to the back side of the face material 91.

Further, as shown in FIG. 7, the end portions 91a and 91b of the face materials 91 adjacent to each other in the vertical direction have inclined end faces 191a and 191b that are separated from each other from the front side to the back side, respectively. As shown in FIG. 7, the upper end 91b has an inclined end surface 191b that inclines downward from the back side of the face material 91 toward the front side, and the lower end portion 91a is the back side of the face material 91. It has an inclined end face 191a that inclines upward from the front side. Therefore, a gap is formed between the upper end portion 91b and the lower end portion 91a that are abutted against each other, and the width gradually narrows from the back side to the front side of the face material 91. The gap is a horizontal joint X. Since the front side portions of the upper end portion 91b and the lower end portion 91a abut against each other, the horizontal joint X is not conspicuous from the front side.

The insertion portion 141 of the seam member 14 is set so that the height from the strip-shaped main body portion 140 does not protrude from between the end portions 91a and 91b to the front side.

As shown in FIG. 1, vertical joints Y are formed between the end portions 91c and 91d of the facing materials 91 adjacent to each other in the left-right direction.

When the seam member 14 is attached to the stud 6 or the like, first, the center and the lower side of the face material 91 arranged on the lower side are attached to the stud 6. Next, the lower strip-shaped portion 140b of the seam member 14 is inserted between the back side of the upper end (that is, the end portion 91a on the long side side) of the attached face material 91 and the stud 6, and in that state, the fixing member 10 is inserted. As a result, the upper end of the face member 91 and the lower strip-shaped portion 140b of the seam member 14 are fixed to the stud 6. After that, the upper strip-shaped portion 140a of the seam member 14 is sandwiched between the back side of the lower end (that is, the end portion 91b on the long side side) of the face material 91 arranged on the upper side and the stud 6, and the upper face material. The 91 is arranged, and in that state, the lower end of the face member 91 and the upper strip 140a of the seam member 14 are fixed to the stud 6 by the fixing member 10. By repeating such work, the seam member 14 can be attached to the stud 6 or the like.

The fire-resistant partition wall 1 as described above is excellent in fire resistance because the seam member 14 is arranged at the horizontal joint X. The fire resistance of the fire resistant partition wall 1 is evaluated by a test described later. The fireproof partition wall is a non-bearing wall, and the fireproof time required for the fireproof structure is 1 hour.

Further, the refractory partition wall 1 of the present embodiment is excellent in sound insulation because the seam member 14 is arranged at the horizontal joint X.

[Embodiment 2]
Next, Embodiment 2 of the present invention will be described with reference to FIG. FIG. 8 is a partially broken perspective view of the refractory partition wall 1A of the second embodiment. The refractory partition wall 1A of the present embodiment is a fixing member (tapping screw) for fixing the end portion of the face material 91 extending in the left-right direction (horizontal direction) to the seam member 14 to the refractory partition wall 1 of the first embodiment. , Screw) It consists of a plurality of 10B added. The basic configuration of the refractory partition wall 1A of the present embodiment is the same as that of the first embodiment, and is shown by the same reference numerals as those of the first embodiment in FIG. However, in the present embodiment, among the fixing members 10 (for example, tapping screws and screws), the one that fixes the face material 91 and the seam member 14 to the stud 6 is referred to as "fixing member 10A" and is referred to as a face material. A member that fixes the 91 to the seam member 14 is referred to as a "fixing member 10B".

In the refractory partition wall 1A of the present embodiment, the portion of the face material 91 that overlaps with the stud 6 (for example, the short side end portions 91c and 91d along the vertical direction and the central side portion of the face material 91) is implemented. Similar to the first embodiment, the fixing member 10A is used to fix the stud 6 to the stud 6. Further, in the present embodiment, the portion of the face material 91 that does not overlap with the stud 6 but overlaps with the strip-shaped main body portion 140 of the seam member 14 (the end on the long side of the face material 91) is the fixing member 10B. Is fixed to the seam member 14. In this way, when the face material 91 is fixed to the seam member 14 by using the fixing member 10B, the face materials 91 adjacent to each other in the vertical direction are connected to each other, and they are one large face material (wall). ), The fire resistance performance of the fire resistant partition wall 1A is further improved.

A plurality of fixing members 10 (fixing member 10A, fixing member 10B) are provided so as to be arranged in a row while maintaining a distance from each other in the direction (horizontal direction) in which the seam member 14 (belt-shaped main body portion 140) extends. In the upper band-shaped portion 140a, a plurality of fixing members (1 It is fixed by a tapping screw, screw) 10B. Further, in the lower strip-shaped portion 140b, a plurality of fixing members (tapping screw, screw) in which the upper end portion 91a of the other face material 91 arranged on the lower side of the seam member 14 is arranged in a row in the above direction. ) It is fixed by 10B. The plurality of fixing members 10B fixed to the upper strip-shaped portion 140a and the plurality of fixing members 10B fixed to the lower strip-shaped portion 140b are both arranged at the same interval (pitch). The distance between the fixing member 10B and the fixing member 10A fixed to the adjacent stud 6 is also set to be the same as the above-mentioned distance where the fixing members 10B are adjacent to each other.

The distance between the adjacent fixing members 10 is not particularly limited as long as the object of the present invention is not impaired, but it is preferably set to, for example, 200 mm to 400 mm. When the distance between the fixing members 10 is smaller than 200 mm, a plurality of cracks formed when screwed to the face material 91 grow and connect to each other during heating, and the end portion of the face material 91 is restrained by the seam member 14. As the force applied is weakened, the fire resistance is inferior. On the other hand, if the distance between the fixing members 10 is larger than 400 mm, the binding force between the face members 91 is weakened, resulting in inferior fire resistance. If the distance between the fixing members 10 is smaller than 200 mm, the sound insulation is deteriorated because the portion where the sound is directly transmitted increases.

The distance between the adjacent fixing members 10 is that of one face member 91, and is the distance between the adjacent fixing members 10B and the distance between the adjacent fixing members 10A and the fixing member 10B. .. By setting the distance between the adjacent fixing members 10 as described above in this way, the fire resistance performance of the fire resistant partition wall 1A is further improved.

The ends 91c and 91d of the face materials 91 adjacent to each other in the left-right direction (horizontal direction) are arranged so as to overlap with the stud 6. Therefore, the distance between the fixing members 10A and 10A provided between the ends 91c and 91d of the face member 91 is usually narrow as shown in FIG.

As described above, by fixing the face materials 91 adjacent to each other in the vertical direction to the seam member 14 by using the fixing member 10B and connecting them to each other, they become one large face material (wall). .. As a result, even when the refractory partition wall 1A is heated in a refractory test or the like, the plurality of face materials 91 which have become one large wall can absorb the heating deformation as a whole. Moreover, even if each of the face materials 91 is heated and shrunk and the gap between the adjacent face materials 91 becomes large, the gap is surely closed by the seam member 14 fixed by the fixing member 10B. , The leakage of flame and hot air from the gap is suppressed. Such a fire-resistant partition wall 1A of the present embodiment has further excellent fire-resistant performance as compared with the first embodiment.

By binding the face members 91 adjacent to each other in the vertical direction to the seam member 14 by using a fixing member 10B such as a screw, the rigidity of the entire wall is increased, so that the sound insulation performance is also improved.

Hereinafter, the present invention will be described in more detail based on Examples. The present invention is not limited to these examples.

(Example 1)
Similar to the first embodiment described above, a refractory partition wall having a one-sided structure using a reinforced gypsum board (specific gravity: 0.76) having a thickness of 25 mm as a face material was produced.

[Fire resistance test]
The refractory partition wall of Example 1 is installed in a 1200 mm square refractory furnace (heating furnace), the temperature inside the furnace is raised according to the standard heating curve by the combustion operation of the burner in the furnace, and the refractory partition wall of Example 1 is set to 1. Heated for hours. Then, one hour after the start of heating, the vertical joints (on the studs) of the wall (wall surface member) on the non-heated side (back side) that does not face the burner, the horizontal joints, the intersections of the vertical joints and the horizontal joints, and the joints of the face materials. The temperature on the surface (general part) other than the above was measured. Then, the presence or absence of penetration in the furnace was visually confirmed. When the maximum temperature of the back surface rise temperature is + 180 ° C. or less from the initial temperature (23 ° C.), the average temperature of the back surface rise temperature is + 140 ° C. or less from the initial temperature (23 ° C.), and there is no penetration in the furnace. It was judged to be fire resistant (symbol: 〇). On the other hand, when the maximum temperature of the back surface rise temperature exceeds + 180 ° C from the initial temperature (23 ° C), when the average temperature of the back surface rise temperature exceeds + 140 ° C from the initial temperature (23 ° C), or through the furnace. If there was, it was judged that there was no fire resistance (symbol: ×). The results are shown in Table 1.

(Examples 2 to 4)
A refractory partition wall was produced in the same manner as in Example 1 except that the face material used was changed to that shown in Table 1.

(Comparative Examples 1 to 4)
The partition walls of Comparative Examples 1 to 4 were prepared in the same manner as in Examples 1 to 4 except that the seam member was not provided.

[Evaluation of fire resistance]
The same fire resistance test as in Example 1 was performed on the fire resistant partition walls of Examples 2 to 4 and the partition walls of Comparative Examples 1 to 4. The test results are shown in Table 1.

As shown in Table 1, in the refractory partition walls of Examples 1 to 4 in which the seam member is assigned to the horizontal joint, the maximum temperature of the back surface rising temperature is + 180 ° C. or less from the initial temperature (23 ° C.). The average temperature of the rising temperature of the back surface was + 140 ° C. or less from the initial temperature (23 ° C.), and no penetration in the furnace occurred, resulting in excellent fire resistance. On the other hand, in the partition walls of Comparative Examples 1 to 3, the maximum temperature of the back surface rising temperature is + 180 ° C. or less from the initial temperature (23 ° C.), and the average temperature of the back surface rising temperature is from the initial temperature (23 ° C.). Although the temperature was + 140 ° C or lower, the result was that penetration into the furnace occurred. Further, in the partition wall of Comparative Example 4, the maximum temperature of the back surface rising temperature exceeds + 180 ° C. from the initial temperature (23 ° C.), and the average temperature of the back surface rising temperature exceeds + 140 ° C. from the initial temperature (23 ° C.). In addition, the result was that penetration into the furnace occurred.

(Example 5)
As the face material, a reinforced gypsum board (specific gravity: 0.76) having a thickness of 25 mm is used, and the ends of the face materials adjacent to each other in the vertical direction are screwed to the seam member as in the second embodiment described above. A fireproof partition wall having a single-sided single-sided structure, which was connected to each other by (tightening), was produced. The screw pitch was set to 333 mm.

(Example 6)
For comparison with Example 5, a refractory partition wall having a single-sided single-layer structure similar to that of the first embodiment in which the end portion of the face material is not screwed to the seam member was produced.

[Fire resistance test]
The fire resistance test of the refractory partition wall of Examples 5 and 6 was performed in the same manner as in Example 1 and the like except that a large test furnace of 3000 mm × 3350 mm square was used as the refractory furnace (heating furnace). The fire resistance was evaluated after heating for 1 hour (60 minutes) and continuously for 3 hours without heating. The results are shown in Table 2.

As shown in Table 2, in the fireproof partition wall of Example 5 in which the face materials are connected to each other by screwing (tightening) the ends of the face materials adjacent to each other in the vertical direction to the seam member, the back surface thereof. The maximum temperature of the rising temperature is + 180 ° C or less from the initial temperature (23 ° C), the average temperature of the rising temperature on the back surface is + 140 ° C or less from the initial temperature (23 ° C), and no penetration in the furnace occurs. The result was excellent fire resistance. Further, even in the refractory partition wall of Example 6 in which the end portion of the face material is not screwed to the seam member, the average temperature of the back surface rising temperature is + 140 ° C. or less from the initial temperature (23 ° C.), and the penetration in the furnace is It did not occur, and the results were excellent in fire resistance. In particular, in Example 5, it was confirmed that the back surface rising temperature could be suppressed low by fastening the seam member with screws.

<Other embodiments>
The present invention is not limited to the embodiments described above and the drawings, and for example, the following embodiments are also included in the technical scope of the present invention.

(1) In the above embodiment, a plurality of studs 6 are erected in a straight line, but the present invention is not limited to this, and in other embodiments, for example, a plurality of studs are so-called. It may be erected in a staggered arrangement. That is, a plurality of studs may be arranged so as to be staggered alternately on the left and right.

(2) The stud 6 of the above embodiment has a shape as described above, but the present invention is not limited to this, and for example, a member having a general shape such as a square stud may be used. Further, the plate thickness of the stud is not limited to that described above, and for example, 0.45 mm, 0.6 mm, 0.8 mm, 1.2 mm, 1.6 mm, 2.3 mm, 3.2 mm, 4 Examples thereof include 0.0 mm, 4.5 mm, 6.0 mm and the like.

(3) In the above embodiment, the face material 91 is composed of reinforced gypsum board, but the present invention is not limited to this, and for example, gypsum board, hard gypsum board, or the like may be used as the face material.

(4) In the above embodiment, the angle θ1 formed between the upper strip-shaped portion 140a and the lower strip-shaped portion 140b of the seam member 14 is set to 180 °, but the present invention is not limited to this. In the present invention, the angle between the upper strip-shaped portion and the lower strip-shaped portion of the seam member may be, for example, about 180 ° (for example, 180 ° ± 10 °) or 90 ° to 180 °. You may.

(5) FIG. 9 is a cross-sectional view of the seam member 14A according to another embodiment cut in the lateral direction. FIG. 9 shows a portion corresponding to the seam member 14 of the first embodiment shown in FIG. The basic structure of the seam member 14A is the same as that of the seam member 14 of the first embodiment, and the metal plate material is bent into a predetermined shape, and includes a strip-shaped main body portion 140A and an insertion portion 141A. ing. However, the seam member 14A of another embodiment shown in FIG. 9 is formed between the upper strip-shaped portion 140Aa and the lower strip-shaped portion 140Ab of the strip-shaped main body portion 140A in a state before being attached to the stud 6 or the like. The angle θ2 is set to an angle smaller than 180 ° and 90 ° or less (90 ≦ θ2 (°) <180).

FIG. 10 is an explanatory diagram schematically showing a process in which the seam member 14A of FIG. 9 is attached to the end portion 91a on the long side side of the face material 91. As shown in FIG. 9, when the angle θ2 is in the above range, when the seam member 14A is attached to the end portion 91a of the face material 91, the lower strip-shaped portion 140Ab is attached to the back surface of the face material 91. Interference with a certain backside base paper 912 is suppressed. The face material 91 made of reinforced gypsum board is composed of a plate-shaped core material 913, a front side base paper 911 attached to the front side of the core material 913, and a back side base paper 912 attached to the back side of the core material 913. The front side base paper 911 is attached not only to the front side surface of the core material 913 but also to the upper end (long side end portion) of the core material 913. The end portion of the front side base paper 911 reaches the back surface of the core material 913 and is attached to the upper end portion of the back surface. On the other hand, the back side base paper 912 is attached to the back surface of the core material 913 so that the end portion overlaps the end portion of the front side base paper 911 from the upper side and does not protrude from the back surface of the core material 913. As described above, on the back surface of the face material 91 made of reinforced gypsum board, the end portion of the back side base paper 912 overlaps with the end portion of the front side base paper 911 to form a step. When the seam member 14A is attached to the end portion 91a of the face material 91 (particularly when the lower strip-shaped portion 140Ab is inserted between the stud and the face material), the lower strip-shaped portion 140Ab (And the upper strip-shaped portion 140a) is suppressed from interfering with the step of the face material 91. Further, when the angle θ2 is set as described above, the strip-shaped main body portion 140A of the seam member 14A is sandwiched between the end portion of the face material 91 and the end portion of the face material 91 at the end portions of the stud 6 and the face material 91. When fixed, the elastic force of the strip-shaped main body portion 140A presses the upper strip-shaped portion 140Aa and the lower strip-shaped portion 140Ab against the end portions of the face material 91 from the back side, respectively. As a result, a gap is less likely to occur between the strip-shaped main body portion 140A of the seam member 14A and the end portion of the face material 91, and the fire resistance, sound insulation, and the like of the refractory partition wall are improved.

(6) The seam member 14 of the above embodiment is a metal plate material bent into a predetermined shape, but the present invention is not limited to this, and for example, the seam member 14 is bent so that one end stands upright. It is also possible to prepare two metal plates that are made of metal, and use those bent portions that are overlapped and welded as a seam member. When the seam member is made of a single metal plate bent into a predetermined shape as in the above embodiment, no gap is formed in the seam member itself, and the seam member itself is not formed with a gap, and is strong and has fire resistance. Excellent.

(7) The end on the long side of the face material (reinforced gypsum board) of the above embodiment is a bevel edge, but the end of the face material of the present invention is not limited to this, for example, a square edge or a taper. It may have a general end shape such as an edge or a round edge. Further, the end portion on the short side may also have a general end shape.

(8) In the refractory partition wall of another embodiment, the joint treatment material may be attached to the vertical joint Y and the horizontal joint X from the front side.

(9) In the refractory partition wall of the above embodiment, the face material is fixed to the stud in a so-called horizontal tension state, but the present invention is not limited to this, and the face material may be fixed to the stud in a so-called vertical tension state. When the face material is fixed to the stud in a vertical position, the seam member is attached along the short side end of the face material (that is, along the horizontal direction).

1 ... Fireproof partition wall, 2 ... Ceiling frame, 3 ... Floor frame, 4 ... Upper runner, 5 ... Lower runner, 6 ... Stud, 7 ... Spacer, 8 ... Anti-sway, 9A, 9B ... Wall member, 91 ... Surface Materials, 91a, 91b ... Ends on the long side of the face material, 91c, 91d ... Ends on the short side of the face material, 191a, 191b ... Inclined end faces (end faces on the long side of the face material), 10 ... Fixed Member, 13 ... Insulation material, 14 ... Seam member, 140 ... Strip-shaped main body, 140a ... Upper strip, 140b ... Lower strip, 141 ... Insertion, X ... Horizontal joint, Y ... Vertical joint

Claims (7)

With the upper runner fixed to the ceiling frame of the building,
With the lower runner fixed to the floor frame of the building,
A plurality of studs erected between the upper runner and the lower runner in an aligned state while maintaining a distance from each other.
Each has a single-sided, one-sided double-sided structure, each fixed to the stud and having a pair of wall members arranged one on each side with the stud in between.
The wall surface member has a plurality of face materials that are arranged in a state where adjacent ends are abutted against each other in the vertical direction and are arranged in a state in which adjacent ends are abutted against each other in the horizontal direction. ,
A strip-shaped main body that forms a strip that crosses the plurality of studs and is attached to the stud together with the ends so as to cover the horizontal joints formed between the ends that are adjacent to each other in the vertical direction from the back side. A metal seam member having an insertion portion that stands up from the strip-shaped main body portion toward the front side of the face material and is inserted into the horizontal joint from the back side.
The ends of the facing materials that are adjacent to each other in the vertical direction are each formed by a plurality of fixing members arranged in a row while maintaining a distance from each other in the extending direction of the strip-shaped main body. By being fixed to the portion, they are connected to each other via the strip-shaped main body portion and are connected to each other.
The ends of the facing materials adjacent to each other in the horizontal direction are fixed to the stud while overlapping with the stud.
The strip-shaped main body portion is arranged on the lower side of the upper strip-shaped portion attached to the end portion of the face material which is arranged on the upper side of the end portions of the face materials adjacent to each other in the vertical direction. It has a lower band-shaped portion attached to the end portion of the other facing material, and has a lower strip-shaped portion.
The face material is a fireproof partition wall made of gypsum board. The refractory partition wall according to claim 1, wherein the distance between the adjacent fixing members is set to 200 mm to 400 mm. The refractory partition wall according to claim 1 or 2, wherein the height of the insertion portion from the strip-shaped main body portion is set so as not to protrude from between the end portions adjacent to each other in the vertical direction to the front side. The seam member is made of a single metal plate that has been bent.
The insertion portion is composed of a portion in which the plate material is folded into a mountain.
The upper strip-shaped portion is connected to the upper base portion of the mountain-folded portion of the plate material.
The fireproof partition wall according to any one of claims 1 to 3, wherein the lower strip-shaped portion is connected to the lower base portion of the mountain-folded portion of the plate material. One of claims 1 to 4, wherein the angle formed between the upper strip-shaped portion and the lower strip-shaped portion of the strip-shaped main body portion is set to an angle smaller than 180 ° C. and 90 ° or more. Fireproof partition wall as described in. The gypsum board has a plate-shaped core material, a front side base paper attached to the upper end of the core material together with the surface of the core material, and a back side base paper attached to the back surface of the core material.
The end portion of the front side base paper is attached to the upper end of the back surface of the core material so as to reach the back surface of the core material beyond the upper end of the core material.
The fireproof partition wall according to any one of claims 1 to 5, wherein a step portion is formed on the back surface side of the core material so that the end portion of the back side base paper overlaps the end portion of the front side base paper. The fire-resistant partition wall according to any one of claims 1 to 6, wherein the fire-resistant time required for the fire-resistant structure is one hour.

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