JP4966024B2 - Fireproof structure of the boundary wall - Google Patents

Description

  The present invention relates to a fireproof structure of a boundary wall between a dwelling unit and a dwelling unit in an apartment house.

  Conventionally, as the fireproof structure of the boundary wall between the dwelling units in a housing complex, a fireproof upper floor slab has been formed on a metal beam whose outer periphery is covered with a fireproof material. Patent Document 1 discloses that an upper runner is attached to the upper runner and an upper end portion of a fireproof plate is inserted into the upper runner.

  In the above conventional example, the upper runner center is constructed so as to coincide with the center of the beam located on the module core (that is, construction is performed so that the field wall is located on the module core). However, the center of the upper runner is shifted laterally with respect to the center of the beam located at the module core in the boundary wall part between the dwelling units in the apartment house (that is, the upper runner is shifted from the module core). Construction)), the fireproof plate is shifted outward from the beam refractory material. In this case, a lateral gap is formed between the upper end of the fireproof plate and the lower end of the side of the beam refractory material. Don't be.

For this reason, in the conventional example, only the construction in which the center of the beam and the center of the upper runner are both located on the module core can be performed on the boundary wall portion, and the degree of freedom in design is limited.
JP-A-6-146441

  The present invention has been invented in view of the above-described conventional problems, and can easily and reliably form a fireproof structure even when the upper runner is shifted from the module core at the boundary wall portion, thereby increasing design freedom. It is an object to provide a fireproof structure for a wall.

In order to solve the above problem, the fireproof structure of the boundary wall according to the present invention is a fireproof structure of the boundary wall 2 between the dwelling unit 1 and the dwelling unit 1 in the apartment house, and the outer periphery is covered with the beam refractory material 3. An upper floor slab 5 having fire resistance is formed on the beam 4 made of metal, and the upper runner 6 is attached to the beam 4 via the joint hardware 7, and upper portions of the fire wall plates 8 are attached to both sides of the upper runner 6, respectively. The center of the upper runner 6 is shifted to one side with respect to the center of the beam 4 so that the upper end of one fireproof wall plate 8 comes into contact with the lower end of the beam fireproof material 3 covering the beam 4 and the other fireproof wall plate 8 The upper end of the refractory material 3 is positioned so as to be shifted outward from the lower end of the beam refractory material 3, and a fitting rail 10 having a metal U-shaped cross section is attached to the lower surface of the upper floor slab 5, and the refractory positioned so as to be shifted outward. The lower end portion of the auxiliary fireproof wall plate 9 is fixed to the upper end portion of the wall plate 8, and the auxiliary fireproof wall plate 9 An end portion is fitted into the fitting rail 10 and a shock-absorbing shock-absorbing member 11 having elasticity or flexibility is interposed between the upper end surface of the auxiliary fireproof wall plate 9 and the upper bottom surface of the fitting rail 10. It is characterized by comprising.

With such a configuration, even if the center of the upper runner 6 is shifted to one side with respect to the center of the beam 4, one fire wall 8 on the one dwelling unit 1 side of the wall 2. And the refractory material 3 have a continuous fire-resistant structure, and on the other dwelling unit 1 side of the boundary wall 2, the other fire-resistant wall plate 8 and the auxiliary fire-resistant wall plate 9 have no continuous fire-resistant structure. In addition, even if the auxiliary fire wall plate 9 is provided between the upper floor slab 5 and the fire wall plate 8, the vibration from the upper floor slab 5 is buffered by the shock-absorbing buffer member 11, and the noise is reduced. Prevention and vibration are prevented from being transmitted to the fire wall plate 8 via the auxiliary fire wall plate 9. Thereby, this invention can provide the fireproof structure of the field wall excellent in the fireproof performance which can suppress that the sound from the upper floor slab 5 and a vibration are transmitted to the lower floor side.

Since the present invention is configured as described above, even if the upper runner is shifted from the center of the beam (that is, the module core) to the side in the boundary wall portion, both sides of the boundary wall have a simple configuration. Rutotomoni can to fireproof structure continuous, unbroken, ringing sound from the upper floor slab, vibration can be suppressed is being transmitted to the lower floor side. In this way, even if the upper runner is shifted from the center of the beam, it is easy and reliable to make a fireproof structure of the field wall with excellent fire resistance that can suppress the sound from the upper floor slab and transmission of vibration to the lower floor side. Since this is possible, there is an advantage that the degree of freedom in design increases.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  As shown in FIG. 1, the boundary wall 2 between the dwelling units 1 and 1 in the apartment house is formed between the lower slab 12 and the upper slab 5 and supports the upper slab 5. The wall 2 is composed of the beam 4, the lower floor slab 12, and the wall portion 13 built between the beam 4. Both the lower floor slab 12 and the upper floor slab 5 are made of concrete such as ALC and have fire resistance.

  The beam 4 located at the boundary wall 2 is made of metal such as a steel frame, and is constructed so that the center of the beam 4 is located at the module core of the apartment house. An upper floor slab 5 is placed and supported on the beam 4. The outer surface of the beam 4 is covered with a beam refractory material 3, and the beam 4 portion has a refractory structure.

  A joint hardware 7 is fixed to the lower flange portion 4a which is the lower surface portion of the beam 4. As shown in FIGS. 3 (a) and 3 (b), the joint hardware 7 is a leg piece having L-shapes on both sides in the short side direction of the connecting horizontal piece 14 which is elongated in the lateral direction and in the middle part in the longitudinal direction. The connecting horizontal piece 14 which is long in the horizontal direction is provided with a plurality of fixing holes 16 in the longitudinal direction. A hole 17 is provided in the lower flange portion 4 a of the beam 4. Any one of the holes 17 provided in the lower flange portion 4 a and a plurality of fixing holes 16 provided in the connecting horizontal piece 14 of the joint hardware 7 is fixed. The holes 16 are connected to each other by bolts 18.

  In addition, if necessary, the lower flange portion 4a and the connecting horizontal piece 14 may be connected via an adjuster hardware 20 provided with a large number of holes 19 in the longitudinal direction as shown in FIG. . That is, an arbitrary hole 19 of the adjuster hardware 20 is connected to the hole 17 of the lower flange portion 4a by the bolt 18, and further, an arbitrary fixing hole 16 provided in the arbitrary hole 19 of the adjuster hardware 20 and the connecting horizontal piece 14 is provided. The bolts 18 may be connected in communication.

  As described above, the center of the joint hardware 7 can be connected so as to be shifted laterally from the center of the beam 4 by an arbitrary length. FIG. 4 shows examples in which the center of the joint hardware 7 is connected so as to be shifted laterally from the center of the beam 4 by an arbitrary length.

  A metal upper runner 6 having an inverted U-shaped cross section is fixed to the leg piece 15 of the joint hardware 7 by a screw tool or other fixing means. Here, the joint hardware 7 may be fixed to the upper surface of the upper runner 6 in advance, or the upper runner 6 may be fixed after the joint hardware 7 is attached to the beam 4.

  In this way, the upper runner 6 is attached to the beam 4 via the joint hardware 7, but the center of the upper runner 6 is shifted laterally with respect to the center of the beam 4 located at the module core of the building. The

  A lower runner 21 having a U-shaped cross section is fixed on the lower floor slab 12 directly below the upper runner 6.

  Fire wall plates 8 serving as walls of the two dwelling units 1 are arranged on both side surfaces of the upper runner 6 and the lower runner 21, and the upper and lower portions of the fire wall plates 8 on both sides are respectively connected to the upper runner 6 and the lower runner 21. It is fixed by such a fixing tool. For example, a gypsum board is used as the fireproof wall plate 8. Between the fire wall plates 8 on both sides, a heat insulating material (not shown) is provided as necessary.

  Here, as shown in FIG. 1, since the center of the upper runner 6 is shifted to one side with respect to the center of the beam 4, the upper end of one fire wall plate 8 of the beam refractory material 3 covering the beam 4 is formed. While being in contact with the lower end portion, the upper end of the other fire-resistant wall plate 8 is shifted outward from the lower end portion of the beam refractory material 3.

  An auxiliary refractory wall plate 9 is disposed between the other refractory wall plate 8 and the upper floor slab 5, the upper end of which is positioned outward from the lower end of the beam refractory material 3. The auxiliary fireproof wall plate 9 is made of gypsum board or the like, the lower end portion is overlapped with the outer surface side of the auxiliary fireproof wall plate 9 and fixed by a fixing tool, and the upper end portion is not fixed to the upper floor slab 5.

  That is, in the embodiment shown in the accompanying drawings, the other fireproof wall plate 8 is fitted by fitting the upper fitting portion 24 having the inverted U shape of the upper end portion of the lower metal fitting 23 into the upper end portion of the other fireproof wall plate 8. The lower fitting portion 25 having a U-shape at the lower end portion of the lower receiving metal fitting 23 is placed on the outer surface of the upper end portion of the lower end portion. Further, the fitting rail 10 made of metal having a reverse U-shaped cross section is attached to the lower surface of the upper floor slab 5 directly above the lower fitting portion 25. A shock-absorbing member 11 having elasticity or flexibility is provided on the upper bottom surface in the fitting rail 10.

  Then, the upper end portion of the auxiliary fireproof wall plate 9 is fitted into the fitting rail 10 and pushed up so as to compress the buffer member 11, and the lower end of the auxiliary fireproof wall plate 9 is positioned above the lower fitting portion 25, In this state, the lower end portion of the auxiliary fireproof wall plate 9 is positioned in the upper opening of the lower fitting portion 25, and the lower end portion of the auxiliary fireproof wall plate 9 is fitted into the lower fitting portion 25 by dropping the auxiliary fireproof wall plate 9 downward. . At this time, the upper end of the auxiliary fireproof wall plate 9 remains in the fitting rail 10, and the buffer member 11 is restored by its own elastic force to the upper end surface of the auxiliary fireproof wall plate 9 and the upper bottom surface in the fitting rail 10. It should be elastically pressed so as not to create a gap. Thereafter, the lower end portion of the auxiliary fireproof wall plate 9 is fixed to the upper end portion of the fireproof wall plate 8 with a fixing tool.

  Although the wall part 13 and the dwelling 4 which partition the dwelling unit 1 and the dwelling unit 1 are comprised by the wall part 13 and beam 4 which were comprised by fixing the fire-resistant wall board 8 to the both sides of the upper and lower runners 6 and 21 as mentioned above. In the boundary wall 2, the center of the beam 4 is positioned at the module core, and the center of the wall portion 13 (center of the upper runner 6) is shifted laterally from the center of the beam 4 (that is, shifted from the module core). Therefore, as shown in FIG. 1, the upper end of one refractory wall plate 8 is in contact with the lower end portion of the beam refractory material 3 covering the beam 4, but the upper end of the other refractory wall plate 8 is the lower end of the beam refractory material 3. The refractory structure is cut off between the upper end of the other refractory wall plate 8 and the lower end portion of the beam refractory material 3. However, since the auxiliary fire-resistant wall plate 9 is attached between the upper end portion of the fire-resistant wall plate 8 and the upper floor slab 5 positioned so as to be shifted outward as described above, the other dwelling unit 1 of the field wall 2 is provided. On the side, the other fireproof wall plate 8 and the auxiliary fireproof wall plate 9 form a continuous fireproof structure without any breaks. Moreover, since the upper end of one fireproof wall board 8 is in contact with the lower end part of the beam fireproof material 3 covering the beam 4 on the one dwelling unit 1 side of the boundary wall 2, the one fireproof wall board 8 and the beam fireproof It becomes a continuous fireproof structure with the material 3 without a break. Therefore, in the present invention, both sides of the boundary wall 2 have a continuous fire-resistant structure from the lower floor slab 12 to the upper floor slab 5, and there is no problem as the fire-resistant structure of the boundary wall 2.

  In the figure, 26 denotes the ceilings of the dwelling units 1 on both sides, and the auxiliary fireproof wall plate 9, the beam refractory material 3 and the like cannot be seen from the room by constructing the ceiling.

  FIG. 2 shows an example in which the center of the upper runner 6 is shifted laterally with respect to the center of the beam 4 located at the module core of the building using the joint hardware 7 and the adjuster hardware 20. Since the configuration is the same as that of the embodiment shown in FIG. 1 except that the adjuster hardware 7 is used, detailed description thereof is omitted. By using the adjuster hardware 7 as in the present embodiment, the center of the upper runner 6 can be arranged further away from the center of the beam 4.

It is sectional drawing which a part of one Embodiment of this invention was abbreviate | omitted. It is sectional drawing which a part of other embodiment of this invention was abbreviate | omitted. (A) is a perspective view of the joint metal fitting used for the above, (b) is an exploded perspective view showing a joint metal fitting and an adjuster hardware. (A) to (d) are connected using the joint hardware as described above, or by using the joint hardware and the adjuster hardware so that the center of the joint hardware is shifted from the center of the beam to the side by an arbitrary length. It is a front view which shows an example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Dwelling unit 2 Boundary wall 3 Beam refractory material 4 Beam 5 Upper floor slab 6 Upper runner 7 Joint hardware 8 Fire wall plate 9 Auxiliary fire wall plate 10 Insertion rail 11 Buffer member

Claims (1)

A fireproof structure of the boundary wall between the dwelling units in a housing complex, where an upper floor slab with fire resistance is formed on a metal beam whose outer periphery is covered with a fireproof material, and the upper runner is a joint hardware The top of the fire wall plate is attached to each side of the upper runner, the center of the upper runner is shifted to one side with respect to the center of the beam, and the upper end of one fire wall plate covers the beam For fitting a reverse U-shaped metal cross section on the lower surface of the upper slab , which is in contact with the lower end of the refractory material and the upper end of the other refractory wall plate is shifted outward from the lower end of the beam refractory material Attach the rail, fix the lower end of the auxiliary fire wall plate to the upper end of the fire wall plate that is displaced outward, and insert the upper end portion of the auxiliary fire wall plate into the fitting rail and the auxiliary fire wall Between the top edge of the plate and the top bottom of the rail Refractory structure Sakaikabe the buffer member is interposed, characterized by comprising having refractory having or flexibility.

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