Fire-resistant buildings

Abstract

To provide a fireproof building allowing workability to be improved for a boundary wall meeting fireproof and sound isolation features.SOLUTION: A fireproof building 1 is provided with a receiving structure of a boundary wall 10 having fireproof and sound isolation features. The boundary wall 10 comprises: a panel 11 (ALC panel) having a fireproof feature; and a first board 12 (a first gypsum board) and a second board 13 (a second gypsum board) arranged at a position with the panel 11 therebetween in a thickness direction of the boundary wall 10 and having a sound isolation feature. The panel 11 in the boundary wall 10 consecutively extends from a foundation 2 of the fireproof building 1 to an attic space 6.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a fire-resistant building, and more particularly to a fire-resistant building provided with a parting wall having fire resistance and sound insulation properties. [Background technology]

[0002] BACKGROUND ART Conventionally, buildings have been constructed in which dwelling units are adjacent to one another, such as apartment buildings and row houses, and these buildings have partition walls separating adjacent dwelling units. For example, the specifications issued by the Ministry of Construction and the Minister's certification based on the Building Standards Act require that the parting walls have a certain level of fire resistance and sound insulation performance. In addition, the Enforcement Order of the Building Standards Act requires that the parting walls have a semi-fireproof structure and reach the attic or ceiling. To satisfy the above fire resistance and sound insulation requirements, a typical parting wall is constructed by attaching gypsum boards to both sides of a parting wall frame with studs to form a hollow gypsum board wall, and filling the interior of the gypsum board wall with glass wool or rock wool. The parting wall then extends to the attic or ceiling (see, for example, Patent Documents 1 and 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-196659 [Patent Document 2] Japanese Patent Application Laid-Open No. 2013-194475 Summary of the Invention [Problem to be solved by the invention]

[0004] In buildings with hollow parting walls as described above, in order to satisfy fire resistance and sound insulation performance, it is necessary to perform wet gap treatment using fire-resistant putty, for example, and to lay two layers of gypsum boards, making the fitting structure of the parting walls relatively complicated. In addition, there were many items to be checked for compliance at the construction site, as specified in the Ministry of Construction Notification Specifications and Ministerial Certification Specifications regarding fire resistance and sound insulation, which made the construction procedures difficult to understand. Therefore, there has been a demand for improving the workability of the fitting structure of parting walls, which require fire resistance and sound insulation. Specifically, there was a need to simplify the construction procedures for parting wall fitting structures and to make it easier to check compatibility at the construction site.More specifically, there was a need to clearly separate the line that ensures fire resistance and the line that ensures sound insulation in the combination of parting walls and ceilings, thereby simplifying the construction procedures and checking compatibility at the construction site.

[0005] The present invention has been made in consideration of the above-mentioned problems, and an object of the present invention is to provide a fire-resistant building that can improve the ease of construction in a parting wall fitting structure that satisfies fire resistance and sound insulation performance. Another object of the present invention is to provide a fire-resistant building that makes it easy to understand the construction procedures for the parting wall fitting structure and makes it easy to check compatibility at the construction site. [Means for solving the problem]

[0006] The above problem is solved by a fireproof building of the present invention, which is a fireproof building equipped with a parting wall having fire resistance and sound insulation properties, wherein the parting wall has a fireproof panel and a first member and a second member having sound insulation properties, which are provided at positions sandwiching the panel in the thickness direction of the parting wall, the partition wall further includes a fiber-based thermal insulation material between the panel and the first member in a thickness direction of the partition wall, The panel of the parting wall extends continuously from the foundation of the fireproof building to the attic, 、 The first and second members of the parting wall extend continuously from the foundation of the fire-resistant building together with the panels, and unlike the panels, do not reach the attic. The fiber insulation material of the parting wall extends continuously from the foundation of the fire-resistant building together with the panel, and does not reach the attic, unlike the panel. This is solved by:

[0007] With the above configuration, it is possible to realize a fire-resistant building that can improve workability in a parting wall fitting structure that satisfies fire resistance and sound insulation performance. More specifically, the parting wall has a fire-resistant panel and first and second sound-insulating members sandwiching the panel between them, and the panel of the parting wall extends from the foundation to the attic. By doing so, firstly, the fire resistance performance of the parting wall can be ensured by the "fire-resistant panel" that extends from the foundation to the attic. Secondly, the sound insulation performance of the parting wall (partition wall) between dwelling units can be ensured by the combination of the "fire-resistant panel" and the "first and second components." As a result, it is no longer necessary to extend the entire parting wall structure to the attic as in the past; it is sufficient to extend the fire-resistant panel to the attic, which simplifies the fitting structure of the parting wall. In other words, the construction procedure is made easier to understand, and compatibility can be easily confirmed at the construction site. More specifically, by using fire-resistant panels as a fire-resistant structure that runs continuously from the foundation to the attic, the fire-resistant partitioning of the parting walls can be ensured through construction work.

[0008] At this time, the panel is an aerated concrete panel (ALC panel), and the first member and the second member are a first gypsum board and a second gypsum board, respectively. R That's good. By using ALC panels as described above, it is possible to construct fire-resistant parting walls using a dry construction method without using putty. It also improves the fire resistance and sound insulation performance of the parting walls. Furthermore, by incorporating the fiber-based insulation material as described above, the sound insulation performance of the partition walls between dwelling units can be further improved. Furthermore, by using fire-resistant rock wool, for example, construction can be carried out using a dry construction method.

[0009] In this case, the fireproof building is provided with a first ceiling and a second ceiling that are provided on either side of the parting wall and have sound insulation properties. The first ceiling and the second ceiling are configured so that the panel of the partition wall is sandwiched between them, but the first member and the second member are not sandwiched between them. That's good. With the above-mentioned configuration, sound insulation performance in the attic can be ensured by a sound-insulating ceiling. This allows construction management to clearly distinguish between ensuring fire resistance and ensuring sound insulation in the combination of parting walls and ceilings. Specifically, the fire-resistant panels of the parting walls extend all the way to the attic. The fit of these panels completes the line that ensures the fire resistance of the parting walls. Then, in the partition walls between the dwelling units, the fit of the sound-insulating boards creates a line that ensures sound insulation. And in the attic, the fit of the sound-insulating ceiling creates a line that ensures sound insulation.

[0010] At this time, the fireproof building is provided with a second fiber-based insulation material having sound insulation properties, which is attached to the underside of each of the first ceiling and the second ceiling, and when viewed from the side of the fireproof building, the upper end of the fiber-based insulation material and the end of the second fiber-based insulation material located on the panel side are: The first ceiling It is preferable that the electrodes are arranged so as to face each other in the vertical direction with the electrode interposed therebetween. With the above configuration, the sound insulation of the parting wall in the attic can be further improved.

[0011] In this case, the fireproof building is provided with a first floor and a second floor that are arranged in a position sandwiching the partition wall, facing the first ceiling and the second ceiling, respectively, and have soundproofing properties, and the first floor and the second floor are configured to sandwich the panel, the first member, and the second member of the partition wall between them. The fireproof building is provided with a third fiber-based insulation material attached to the underside of each of the first floor and the second floor and having sound insulation properties, and in a side view of the fireproof building, a lower end of the fiber-based insulation material and an end of the third fiber-based insulation material located on the panel side are the first member It is preferable that the electrodes are arranged so as to face each other in the horizontal direction with a gap therebetween. With the above-mentioned configuration, the sound insulation of the parting wall can be further improved even at the foundation.

[0012] In this case, the fireproof building is a building in which dwelling units exist in succession, and the panel of the parting wall extends continuously upward from the part attached to the foundation and is attached to the roof, the first member is attached to the first ceiling and the first floor between the first ceiling and the first floor, and the second member is attached to the second ceiling and the second floor between the second ceiling and the second floor. The above configuration makes it easier to understand the construction procedures for fitting parting walls in buildings where dwelling units are adjacent to each other, and makes it easier to check compatibility at the construction site. Specifically, the construction process can be simplified by clearly separating the lines that ensure fire resistance and the lines that ensure sound insulation in the combination of parting walls, ceilings, and floors. While the above-mentioned fitting structure can ensure sound insulation for the ceilings of each floor, other structures can also be used, such as ensuring sound insulation only for the ceiling of the top floor, and ensuring sound insulation for floors below the top floor by using walls along the ALC panels. [Effects of the Invention]

[0013] According to the fire-resistant building of the present invention, it is possible to improve the workability of the parting wall fitting structure that satisfies fire resistance and sound insulation performance. It also makes it easier to understand the construction procedures for the parting wall fitting structure, and makes it easier to check compatibility at the construction site. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 1 is a perspective view of the exterior of a fire-resistant building having a parting wall fitting structure. [Figure 2] FIG. 1 is a side cross-sectional view showing the fitting structure of the parting wall, illustrating the structure of the foundation, parting wall, and floor. [Figure 3] FIG. 1 is a side cross-sectional view showing the fitting structure of the parting wall, illustrating the structure of the parting wall, attic, and ceiling. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, an embodiment of the present invention will be described with reference to FIGS. This embodiment relates to an invention of a fireproof building equipped with a parting wall having fire resistance and sound insulation properties, the parting wall having a fire-resistant cement-based panel (ALC panel) and a first board and a second board having sound insulation properties that are arranged in a position sandwiching the cement-based panel in the thickness direction of the parting wall, and the main feature of the fireproof building is that the cement-based panel of the parting wall extends continuously from the foundation of the fireproof building to the attic.

[0016] As shown in FIG. 1, the building 1 of this embodiment is a row-type fireproof building in which dwelling units are adjacent to each other, such as an apartment building, tenement house, dormitory, etc., and is equipped with a parting wall 10 that is fire-resistant and sound-insulating. "Fire-resistant" means, for example, that the building satisfies the technical standards for fire resistance required by the Ministry of Construction's notification specifications or the Minister's certification specifications. Specifically, this means that the parting walls are fire-resistant and reach the attic or ceiling. "Having sound insulation properties" means, for example, that the technical standards for sound insulation performance required by the Ministry of Construction's notification specifications or the Minister's certification specifications are met. Specifically, the sound insulation structure of the parting wall must have a transmission loss for sound frequencies that is equal to or greater than a predetermined standard value.

[0017] As shown in Figures 2 and 3, the parting wall fitting structure of building 1 comprises a reinforced concrete foundation 2 that serves as the base of building 1, steel columns 3 that are fixed to the top surface of foundation 2 via anchor bolts, base plates, etc. and support the superstructure of building 1, and parting walls 10 that are attached to the top surface of foundation 2 via parting wall mounting brackets, etc. The building 1 also has a first floor 20A and a second floor 20B that are supported from below by a foundation 2 and floor beams 4 and are positioned with a partition wall 10 in between, and a first ceiling 30A and a second ceiling 30B that are supported by columns 3, beams 5 and the partition wall 10 and are positioned with the partition wall 10 in between.

[0018] As shown in Figs. 2 and 3, the parting wall 10 includes a fire-resistant cementitious panel 11, a first board 12A and a second board 12B that are sound-insulating and are disposed in positions sandwiching the cementitious panel 11 in the thickness direction of the parting wall 10, a first insulating material 13A that is disposed between the cementitious panel 11 and the first board 12A, and a second insulating material 13B that is disposed between the cementitious panel 11 and the second board 12B.

[0019] The cement panel 11 is a thick panel made of cement-based materials such as precast concrete (PC) or aerated concrete (ALC), and specifically, is an ALC panel for partition walls with a thickness of 75 mm or more and 150 mm or less. By using ALC panels, it is possible to improve the fire resistance, sound insulation, and heat insulation performance of the parting wall 10. In addition, since ALC panels are relatively light, it is also possible to improve the workability of the parting wall 10. In addition to the above cement-based panels, CLT panels made of wood materials may also be used.

[0020] The first board 12A and the second board 12B are each made of gypsum board, and specifically, each is made of multiple layers (two layers) to ensure sound insulation performance. It should be noted that plywood may be used instead of gypsum board, or other boards that can ensure sound insulation performance may be used. Alternatively, instead of the board, a cement-based material such as mortar may be applied to both sides of the cement-based panel 11 to ensure the sound insulation performance of the parting wall 10.

[0021] The first insulating material 13A and the second insulating material 13B are each made of glass wool or rock wool, and specifically, are spray-type glass wool or rock wool. Instead of the spray type, wrapped glass wool (rock wool) may also be used.

[0022] In the above-described configuration, as shown in FIGS. 1 and 2, the cement panel 11 of the parting wall 10 extends continuously in the height direction of the building 1 from the foundation 2 to the attic 6. That is, only the cement panel 11 extends continuously upward from the portion attached to the foundation 2 to reach the attic 6 and is attached to the roof 7. On the other hand, the first board 12A is disposed between the first floor 20A and the first ceiling 30A and attached to the first floor 20A and the first ceiling 30A. Similarly, the first insulating material 13A is disposed between the first floor 20A and the first ceiling 30A. Further, the second board 12B is disposed between the second floor 20B and the second ceiling 30B and attached to the second floor 20B and the second ceiling 30B. Similarly, the second insulating material 13B is disposed between the second floor 20B and the second ceiling 30B.

[0023] By using the above-described fitting structure for the parting wall 10, the "cement-based panel 11" extending from the foundation 2 to the attic 6 ensures the fire resistance of the parting wall 10. Furthermore, the combination of the "cement-based panel 11" and the "first and second boards 12A, B" ensures the sound insulation performance of the parting wall 10 (partition wall) between the dwelling units. As a result, it is no longer necessary to extend the entire parting wall structure to the attic as in the past, and it is sufficient to extend the cement-based panel 11 to the attic, which simplifies the fitting structure for the parting wall 10.

[0024] The first floor 20A and the second floor 20B are each fire-resistant floors, and more specifically, are structural plywood laminated with composite flooring. Instead of structural plywood, gypsum board may be used, or other boards that can ensure sound insulation performance may be used. A sound-insulating fiber-based heat insulating material 21 is attached to the underside of each of the first floor 20A and the second floor 20B in order to improve sound insulation performance. The fiber-based heat insulating material 21 may be, for example, glass wool or rock wool. The floor does not necessarily have to be fire-resistant, and the fiber-based heat insulating material 21 does not have to be attached to the underside of the floor.

[0025] The first ceiling 30A and the second ceiling 30B are each fire-resistant ceilings, specifically made of gypsum board, and are each made up of multiple layers (two layers) to ensure sound insulation performance. It should be noted that plywood may be used instead of gypsum board, or other boards that can ensure sound insulation performance may be used. A sound-insulating fiber-based heat insulating material 31 is attached to the ceiling space above each of the first ceiling 30A and the second ceiling 30B in order to improve sound insulation performance. The fiber-based heat insulating material 31 may be, for example, glass wool or rock wool.

[0026] With the above-mentioned configuration, the sound insulation performance in the attic 6 can be ensured by the sound-insulating ceiling 30. In this way, the construction management can be carried out by clearly separating the line for ensuring fire resistance and the line for ensuring sound insulation in the combination of the parting wall 10 and the ceiling 30. Specifically, the fire-resistant cementitious panels 11 of the parting wall 10 extend to reach the attic 6. The fit of the cementitious panels 11 completes the line that ensures the fire resistance of the parting wall 10. In the partition walls between the dwelling units, the fit of the sound-insulating boards 12 (gypsum boards) completes the line that ensures sound insulation. In the attic 6, the fit of the sound-insulating ceiling 30 completes the line that ensures sound insulation.

[0027] With the above configuration, in a building 1 in which dwelling units are adjacent to each other, the construction procedure for the fitting structure of the parting wall 10 can be made easier to understand, and compatibility can be easily confirmed at the construction site. Specifically, in the combination of the parting wall 10, floor 20 and ceiling 30, the line for ensuring fire resistance and the line for ensuring sound insulation can be clearly separated and simplified.

[0028] In the above embodiment, the fire-resistant building provided with the parting wall according to the present invention has been mainly described. However, the above embodiment is merely an example for facilitating understanding of the present invention, and does not limit the present invention. The present invention can be modified or improved without departing from the spirit thereof, and the present invention naturally includes equivalents thereof. [Explanation of symbols]

[0029] 1 Buildings (fireproof buildings) 2 Basics 3 Pillars 4 floor bundle 5 Beam 6 Attic 7. Roof 10 Parting Wall 11 Cement-based panels (panels, ALC panels) 12 Board (gypsum board) 12A First board (first component, first gypsum board) 12B Second board (second member, second gypsum board) 13 Fiber-based insulation materials 13A First insulation material 13B Second insulation material 20 beds 20A 1st floor 20B 2nd floor 21 Fiber-based insulation materials (Third fiber insulation material) 30 Ceiling 30A First Ceiling 30B 2nd ceiling 31 Fiber-based insulation materials (Second fiber insulation material)

Claims

1. A fire-resistant building equipped with fire-resistant and sound-insulating parting walls, The partition wall is a fire-resistant panel; a first member and a second member having sound insulation properties, the first member and the second member being provided at positions sandwiching the panel in a thickness direction of the partition wall; the partition wall further includes a fiber-based thermal insulation material between the panel and the first member in a thickness direction of the partition wall, The panel of the parting wall extends continuously from the foundation of the fire-resistant building to the attic, The first member and the second member of the parting wall extend continuously from the foundation of the fire-resistant building together with the panel, and do not reach the attic, unlike the panel; and A fire-resistant building characterized in that the fiber-based insulation material in the partition wall extends continuously from the foundation of the fire-resistant building together with the panels, and unlike the panels, does not reach the attic.

2. The panel is an aerated concrete panel (ALC panel), 2. The fire-resistant building according to claim 1, wherein the first member and the second member are a first gypsum board and a second gypsum board, respectively.

3. The fireproof building is provided with a first ceiling and a second ceiling, which are provided on either side of the parting wall and have sound insulation properties, The fireproof building according to claim 1 or 2, characterized in that the first ceiling and the second ceiling are configured so that the panel of the partition wall is sandwiched between them, but the first member and the second member are not sandwiched between them.

4. The fireproof building is provided with a second fiber-based insulation material having sound insulation properties and attached to the underside of each of the first ceiling and the second ceiling, A fire-resistant building as described in claim 3, characterized in that, when viewed from the side of the fire-resistant building, the upper end of the fiber-based insulation material and the end of the second fiber-based insulation material located on the panel side are arranged so as to face each other in the vertical direction through the first ceiling.

5. The fireproof building includes a first floor and a second floor that are provided at positions sandwiching the parting wall, are disposed at positions facing the first ceiling and the second ceiling, and have sound insulation properties, The fireproof building according to claim 4, characterized in that the first floor and the second floor are configured to sandwich the panel, the first member and the second member of the partition wall between them.

6. The fireproof building is provided with a third fiber-based insulation material having sound insulation properties and attached to the undersides of the first floor and the second floor, A fire-resistant building as described in claim 5, characterized in that, when viewed from the side of the fire-resistant building, the lower end of the fiber-based insulation material and the end of the third fiber-based insulation material located on the panel side are arranged so as to face each other horizontally via the first member.

7. The fireproof building is a building in which dwelling units exist consecutively, The panel of the partition wall extends continuously upward from the portion attached to the foundation and is attached to the roof, the first member is attached to the first ceiling and the first floor between the first ceiling and the first floor, 7. A fireproof building according to claim 5 or 6, characterized in that the second member is attached to the second ceiling and the second floor between the second ceiling and the second floor.