Fire-resistant buildings

Abstract

To provide a fireproof building capable of improving workability in fitting structure of a fireproof separation wall.SOLUTION: A fireproof building 1 comprises a roof 40, a roof support member for supporting the roof and a fireproof separation wall 10. The roof support member is placed at a height position opposite to the separation wall 10 and has a first support member 8 extending in an intersection direction with the separation wall 10. A gap 8c for getting the separation wall 10 through is formed at a part corresponding to the separation wall 10 in an extension direction of the first support member, of the first support member 8. The separation wall 10 has a fireproof separation wall panel 11. The separation wall panel 11 extends from the underfloor to an attic of the fireproof building 1 and extends above the first support member 8 through the gap 8c formed at the first support member 8..SELECTED DRAWING: Figure 5

Description

[Technical Field]

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

[0002] Conventionally, buildings have been constructed in which dwelling units are adjacent to one another, such as apartment buildings and row houses. These buildings are equipped with a roof, roof support members that support the roof, and fire-resistant partition walls that separate adjacent dwelling units (see, for example, Patent Document 1).

[0003] In a building with a parting wall such as that in Patent Document 1, the roof support members include rafters that support the roof and extend along the roof, ridge beams and purlins that support the rafters and extend perpendicular to the rafters, and trusses and cross braces that support the ridge beams and purlins. In this case, if the main building is placed at a height position opposite the parting wall and extends perpendicular to the parting wall, the main building will be fitted in such a way that it penetrates the parting wall. More specifically, in the parting wall where the purlin interferes, an opening is cut out to match the shape of the purlin, and the opening is filled with fire-resistant joint material (fire-resistant covering material such as rock wool) with the purlin passing through.

[0004] Furthermore, the parting walls are required to have predetermined fire resistance and sound insulation performance, for example, in the specifications notified by the Ministry of Construction and the specifications certified by the Minister based on the Building Standards Act, and the Enforcement Order of the Building Standards Act also requires that they 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 inside 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 Document 2). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 7-62761 [Patent Document 2] Japanese Patent Application Laid-Open No. 2013-194475 Summary of the Invention [Problem to be solved by the invention]

[0006] Incidentally, in a building having a parting wall such as that disclosed in Patent Document 1, after the parting wall is constructed, it is necessary to cut out and form complex opening holes in the parting wall in accordance with the shape and position of the main building, which makes on-site construction work complicated and may affect quality.

[0007] Furthermore, in a building having a hollow parting wall such as that described in Patent Document 2, 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 board, which makes the fitting structure of the parting wall 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 performance, 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.

[0008] 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 workability of the fitting structure of fire-resistant parting walls. Another object of the present invention is to provide a fire-resistant building that makes it easy to understand the construction procedure for a parting wall fitting structure that satisfies fire resistance and sound insulation performance, and that makes it easy to confirm compatibility at the construction site. [Means for solving the problem]

[0009] The above-mentioned problems are solved by a fireproof building of the present invention, which provides a fireproof building comprising a roof, roof support members supporting the roof, and fire-resistant parting walls, wherein the roof support members are arranged at a height opposite to the parting wall and have first support members extending in a direction intersecting the parting wall, a gap for passing the parting wall is formed in a portion of the first support member that corresponds to the parting wall in the extension direction of the first support member, and the parting wall has fire-resistant parting wall panels that extend from under the floor of the fireproof building to the attic, passing through the gap formed in the first support members and extending to a position above the first support members.

[0010] The above configuration makes it possible to realize a fire-resistant building that can improve the ease of construction in the fitting structure of fire-resistant parting walls. More specifically, a gap is formed in the portion of the roof support member (first support member) that corresponds to the partition wall to allow the partition wall to pass through, and the partition wall (partition wall panel) extends to reach the attic, passing through the gap and extending above the first support member. This eliminates the need to cut holes in the parting wall on-site to match the shape and position of the main building, as was previously the case, which improves workability and leads to more consistent quality.In particular, when using solid parting wall panels, workability can be further improved.

[0011] In this case, it is preferable that the first support member supports the roof and rafters extending in the extension direction of the roof and is a purlin extending in a direction intersecting the rafters, or that the first support member supports a roof panel serving as the roof and is a purlin extending in a direction intersecting the base material of the roof panel, and the parting wall panel extends along the extension direction of the rafters or base material, extends in a direction intersecting the extension direction of the purlins, passes through the gap formed in the purlin, extends to a height position opposite the rafters or base material, and is disposed between a plurality of the rafters or base materials. With the above-mentioned configuration, it is possible to extend the parting wall from under the floor to the attic of a fire-resistant building without the need to form a notch in the parting wall to match the main building. Furthermore, with the above-described configuration, the parting wall can be extended to the roof (roof facing material) of the fire-resistant building without interfering with the rafters (roof underlayment material).

[0012] In this case, the parting wall preferably includes first and second boards having sound insulation properties and disposed at positions sandwiching the parting wall panel in a thickness direction of the parting wall, the parting wall panel extending from under the floor of the fire-resistant building to reach the attic, and the first and second boards disposed at positions in the parting wall that do not reach the attic. The above configuration makes it possible to realize a fire-resistant building that makes it easy to understand the construction procedure for a parting wall fitting structure that satisfies fire resistance and sound insulation performance, and makes it easy to confirm compatibility at the construction site. More specifically, the parting wall has a fire-resistant parting wall panel and first and second sound-insulating boards sandwiching the parting wall panel, and the parting wall panel extends from under the floor to the attic (shed). Therefore, firstly, the fire resistance of the parting wall can be ensured by the "fire-resistant panel" that extends from under the floor to the attic. Secondly, the soundproofing performance of the parting wall (dividing wall) between the dwelling units can be ensured by combining the "fire-resistant panel" with the "first and second boards." Furthermore, unlike the past, it is not necessary to extend the entire parting wall structure to the attic; simply extending the "fire-resistant panel" to the attic is sufficient, which simplifies the fitting structure of the parting wall. In other words, this makes the construction procedure easier to understand and makes it easier to check compatibility at the construction site. More specifically, by using only "fire-resistant panels" as a fire-resistant structure and extending them from under the floor to the attic, the compatibility of the parting wall's fire compartment can be ensured through construction work.

[0013] In this case, it is preferable that the parting wall panel is an aerated concrete panel (ALC panel), the first board and the second board are a first gypsum board and a second gypsum board, respectively, and the parting wall further has a fiber-based thermal insulation material between the ALC panel and the first gypsum board in the thickness direction of the parting wall. 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.

[0014] In this case, it is preferable that the roof support member supports the first support member, extends in a direction intersecting the extending direction of the first support member, and further includes a truss arranged adjacent to the parting wall panel, the first support member has a first support part and a second support part that sandwich the parting wall panel therebetween, the parting wall panel passes through the gap formed between the first support part and the second support part, and the truss supports only the second support part of the first support part and the second support part. With the above configuration, the second support section of the main building is supported by the truss located adjacent to the parting wall panel. This allows one side of the main building to be supported by the truss located adjacent to the parting wall panel, even if a gap is formed in the main building to allow the parting wall to pass through, thereby enhancing the support structure provided by the roof support member. Furthermore, the above-mentioned configuration makes it possible to connect, for example, parting wall panels and trusses, thereby strengthening the framework structure of the parting walls and roof support members.

[0015] In this case, it is preferable that the first support member has a first support part and a second support part that sandwich the parting wall panel therebetween, and that the parting wall panel passes through the gap formed between the first support part and the second support part, extends along the parting wall panel in the attic, and is supported from above or below by a beam covered with a fiber-based thermal insulation material. With the above configuration, the building's framework (beams) can be configured as part of the parting wall, making the framework structure of the parting wall stronger. Furthermore, because the beams are covered with a fiber-based heat insulating material (for example, a fire-resistant covering material), the fire resistance of the parting wall can be ensured even when the beams are configured as part of the parting wall. [Effects of the Invention]

[0016] According to the fire-resistant building of the present invention, it is possible to improve the workability of the fitting structure of the fire-resistant parting wall. In addition, the construction procedures for the parting wall fitting structure will be made easier to understand, making it easier to confirm compatibility at the construction site (confirming the scope of construction responsibility). [Brief explanation of the drawings]

[0017] [Figure 1] This is a perspective view of the frame of a fireproof building. [Figure 2] FIG. 10 is a perspective view of the frame of a fireproof building as viewed from a different angle, illustrating the roof structure including the parting wall. [Figure 3]FIG. 1 is a cross-sectional side view of a foundation structure including a partition wall. [Figure 4] FIG. 1 is a side cross-sectional view of an intermediate floor structure including a parting wall. [Figure 5] This is a side cross-sectional view of a roof structure (attic structure) including a parting wall. [Figure 6] FIG. 10 is a diagram illustrating a roof assembly structure according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, an embodiment of the present invention will be described with reference to FIGS. This embodiment relates to an invention of a "fireproof building" that is mainly characterized in that it is a fireproof building equipped with a fire-resistant parting wall (parting wall panel), and a first support member among the roof support members is arranged at a height position opposite the parting wall panel and extends in a direction intersecting (perpendicular to) the parting wall panel, the parting wall panel extends from under the floor of the fireproof building to the attic, and passes through a gap formed in the first support member to extend above the first support member.

[0019] 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 buildings" includes not only fire-resistant buildings (buildings with fire-resistant structures based on the Building Standards Act) themselves, but also semi-fire-resistant buildings (buildings with semi-fire-resistant structures) and fire-prevention buildings (buildings with fire-prevention structures). "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 Minister-certified 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. In addition, following the revision of the Building Standards Act that came into effect in June 2019, it is no longer necessary to apply the standard that requires parting walls (the entire parting wall) to reach the attic or ceiling, for example, by ensuring the soundproofing performance of the ceiling.

[0020] As shown in Figures 1 and 3, building 1 comprises a reinforced concrete foundation 2 that serves as the base of building 1, floor beams 3, steel columns 4 and steel beams 5 that are fixed to the top surface of foundation 2 and support the superstructure of building 1, roof support members (rafters 6, ridge beam 7, purlins 8, trusses 9) that are supported by columns 4 and beams 5 and support roof 40 of building 1, and parting walls 10 that are attached to the top surface of foundation 2 via parting wall mounting brackets (not shown). As shown in FIG. 4, the building 1 is provided with a first floor 20A and a second floor 20B that are supported from below by a foundation 2 and floor beams 3 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 4, beams 5, the partition wall 10, etc. and are positioned with the partition wall 10 in between, as shown in FIG. 1 and 5, the building 1 has a roof 40 (sloped roof) supported by columns 4, beams 5, roof support members, and parting walls 10. The roof 40 may be a flat roof. As shown in FIG. 1, the building 1 also includes an exterior wall 50 that is fixed to the top surface of the foundation 2 and supported by the foundation 2, columns 4, beams 5, and boundary walls 10, etc.

[0021] As shown in Figure 1, the beams 5 include floor beams 5a (ceiling beams) that support the floor of the building 1, and roof beams 5b that are positioned above the floor beams 5a and support the roof 40 and roof support members. The floor beams 5a and roof beams 5b are arranged in a cross shape (grid shape).

[0022] As shown in Figures 1 and 2, the roof support member comprises a plurality of rafters 6 that support the roof 40 (roof surface material) and extend in the extension direction (beam direction) of the roof 40, a ridge beam 7 and a plurality of purlins 8 that support the plurality of rafters 6 and extend in a direction intersecting the rafters 6 (beam direction), and a plurality of trusses 9 that support the ridge beam 7 and the plurality of purlins 8 and extend in a direction intersecting the extension direction of the purlins 8 (beam direction).

[0023] 1 and 2, the main building 8 is disposed at a height position opposite the partition walls 10, and extends in a direction intersecting the partition walls 10. In this embodiment, the main building 8 extends in a direction intersecting the arrangement direction of the multiple partition walls 10. As shown in Figs. 2 and 5, the main house 8 has a first support portion 8a and a second support portion 8b that sandwich the partition wall 10 in the extension direction of the main house 8. That is, a gap 8c for passing the partition wall 10 is formed in the portion of the main house 8 that corresponds to the partition wall 10 in the extension direction of the main house 8.

[0024] As shown in Figures 1, 2, and 5, the truss 9 is installed on the beam 5 (rafter 5b), is arranged at a position corresponding to each of the multiple main buildings 8, and has multiple truss upright sections 9a extending upward, and truss inclined sections 9b installed on the truss upright sections 9a, connects the multiple truss upright sections 9a, and is inclined along the arrangement direction of the multiple main buildings 8. The truss 9 is disposed at a height position opposite the partition walls 10, and extends along the partition walls 10 (along the direction in which the partition walls 10 are arranged). The truss upright portion 9a is also called a rafter, and the truss inclined portion 9b is also called a gable, and is a roof support member.

[0025] As shown in FIGS. 1 and 2, the parting walls 10 are flat wall materials that are long in the vertical direction, and a plurality of them are arranged side by side along the extension direction of the roof 40 (the beam direction of the building 1). In this embodiment, the parting walls 10 are arranged so that a plurality of them are stacked in the vertical direction, and are arranged so that a plurality of them are lined up in the extending direction of the roof 40, but this is not particularly limited. For example, the parting wall 10 may be a single wall material that is long in the vertical direction and rises from the foundation 2 to the roof. Alternatively, the parting wall 10 may be a wide wall material that is large and extends in the direction in which the roof 40 extends.

[0026] As shown in Figs. 3 to 5, the parting wall 10 has a fire-resistant parting wall panel 11, a first board 12A and a second board 12B which are sound-insulating and are provided at positions sandwiching the parting wall panel 11 in the thickness direction of the parting wall 10, a first insulating material 13A arranged between the parting wall panel 11 and the first board 12A, and a second insulating material 13B arranged between the parting wall panel 11 and the second board 12B.

[0027] The parting wall 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 ensure the fire resistance of the parting wall 10 and further improve the sound insulation and heat insulation performance. In addition, because ALC panels are relatively light, it is also possible to improve the workability of the parting wall 10. In addition to the above-mentioned parting wall panels, CLT panels made of wood materials may also be used.

[0028] 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), which ensures 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 parting wall panel 11 to ensure the sound insulation performance of the parting wall 10.

[0029] The first insulating material 13A and the second insulating material 13B are each a fiber-based insulating material, and specifically, spray-type glass wool or rock wool. Instead of the spray type, a wrapping type of glass wool (rock wool) may be used.

[0030] Sound insulation performance, particularly in the high frequency range, can be further improved by combining a sound-insulating parting wall panel 11 (ALC panel) and a sound-insulating board 12 (gypsum board) as in the above-mentioned parting wall 10. Therefore, for example, it becomes unnecessary to perform airtight treatment (sealing treatment, etc.) on the outer periphery (four-sided portion) of the board 12. Furthermore, by providing a parting wall panel 11 with sound insulation properties, as in the above-mentioned parting wall 10, it is possible to suppress solid-state propagation between the boards 12 positioned on either side of the parting wall panel 11, thereby further improving sound insulation performance.

[0031] As shown in FIG. 3, the first floor 20A and the second floor 20B are fire-resistant floors, and 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. Fiber-based heat insulating material 21 is attached to the underside of each of the first floor 20A and the second floor 20B. 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.

[0032] As shown in FIG. 4, 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 is also possible to use plywood instead of gypsum board, or other boards that can ensure sound insulation performance. Furthermore, the ceilings 30A and 30B are not limited to multiple boards, and may be a single layer of board. 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. The first floor 20A and the first ceiling 30A are arranged in positions facing each other, and the second floor 20B and the second ceiling 30B are arranged in positions facing each other.

[0033] In the above-described configuration, in the attic space 60 shown in FIG. 4, the parting wall panel 11 of the parting wall 10 extends continuously in the vertical direction, penetrating the ceiling 30 of the lower floor and the floor 20 and floor panel 22 of the upper floor. Furthermore, the parting wall panel 11 is adjacent to the beam 5, which corresponds to the floor beam (ceiling beam), and is supported by the beam 5 while being in contact with the beam 5. Strictly speaking, the parting wall panel 11 is connected to the beam 5 via an L-shaped parting wall support bracket.

[0034] <Parting wall fitting structure (fire resistance and sound insulation performance)> As shown in FIGS. 3 to 5, the parting wall panel 11 of the parting wall 10 extends in the height direction of the building 1 from the foundation 2 through the attic 60 and up to the attic 70. Specifically, only the parting wall panel 11 extends upward from the portion attached to the foundation 2 to the attic 70 and is attached to the roof 40. On the other hand, the first board 12A and the second board 12B are arranged at positions on the parting wall 10 that do not reach the attic 70. Specifically, 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, as shown in Figures 4 and 5. The first insulating material 13A is also 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. In other words, the parting wall 10 has a fitting structure in which the first board 12A, the first heat insulating material 13A, the second board 12B, and the second heat insulating material 13B are fitted in a floor-to-ceiling manner.

[0035] The above-described fitting structure of the parting wall 10 ensures the "fire resistance performance" of the parting wall 10 by the parting wall panel 11 extending from the foundation 2 to the attic 70. Furthermore, the combination of the parting wall panel 11 and the boards 12A, 12B ensures the "sound insulation performance" of the parting wall 10 between the dwelling units. As a result, it is not necessary to extend the entire parting wall structure to the attic (shed) as in the past, and it is sufficient to extend the parting wall panel 11 to the attic, so the fitting structure of the parting wall 10 can be simplified.

[0036] 5, the "sound insulation performance" in the attic 70 can be ensured by a sound-insulating ceiling 30. By doing so, 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 parting wall panels 11 of the parting wall 10 extend to the attic 70. The fit of the parting wall panels 11 completes the line that ensures the fire resistance of the parting wall 10. In the partition walls between dwelling units, the fit of the sound-insulating boards 12 (gypsum boards) completes the line that ensures sound insulation. In the attic 70, the fit of the sound-insulating ceiling 30 completes the line that ensures sound insulation. In addition, even in the foundation 2, a line that ensures sound insulation is created by fitting the sound-insulating floor 20.

[0037] <Parting wall fitting structure (interface with roof support members)> As shown in FIG. 5, the parting wall panel 11 of the parting wall 10 passes through a gap 8c formed in the main building 8, which serves as a roof support member, and extends above the main building 8. More specifically, the parting wall panels 11 extend in the direction in which the rafters 6 extend, and extend in a direction intersecting the direction in which the purlins 8 extend. They then pass through gaps 8c formed in the purlins 8, extend to a height position opposite the rafters 6, and are disposed between the multiple rafters 6. This eliminates the need to cut holes in the parting wall on-site to match the shape and position of the main building, as was previously required, improving workability.

[0038] As shown in FIG. 5, the parting wall panel 11 extends so as to pass through a gap 8c formed in the main house 8 between the first support portion 8a and the second support portion 8b. At this time, the truss 9 arranged adjacent to the parting wall panel 11 supports only the second support portion 8b out of the first support portion 8a and the second support portion 8b. By doing so, even if a gap 8c is formed in the main house 8 to allow the partition wall 10 to pass through, one side (the tip of one side) of the main house 8 can be supported by the truss 9 arranged adjacent to the partition wall panel 11, thereby improving the support structure provided by the roof support member. Furthermore, by connecting the parting wall panel 11 and the truss 9, the framework structure of the parting wall 10 and the roof support member can be strengthened.

[0039] As shown in FIG. 5, the truss 9 is supported from below by beams 5 covered with fiber-based heat insulating material 5c. At this time, the fiber-based insulation material 5c covering the beam 5 is attached so as to straddle the upper part of the partition wall panel 11 and the lower part of the partition wall panel 11 divided in the vertical direction. By doing so, even if the parting wall panel 11 is divided in the vertical direction, the "fire resistance performance" of the parting wall 10 can be ensured.

[0040] <Second embodiment (interface with roof support member)> FIG. 6 is a diagram illustrating the roof assembly structure of the second embodiment. The parting wall panel 11 is made up of a plurality of panels. Specifically, the partition wall panel 11 has a first panel 11A that is supported from above by a beam 5 in the attic 70, and a second panel 11B that is positioned above the beam 5 and supported by the beam 5. The beam 5 is covered with a fiber-based heat insulating material 5c, and is connected to the first panel 11A and the second panel 11B via metal joints. In the above configuration, the second panel 11B extends so as to pass through the gap 8c formed in the purlin 8 between the first support portion 8a and the second support portion 8b.

[0041] Even with the above-mentioned configuration, it is no longer necessary to form opening holes on-site in the parting wall that match the shape and position of the main building, as was done in the past, and workability can be improved. In the above embodiment, it is preferable to place a truss (not shown) at the end position on the gap 8c side of both the first support portion 8a and the second support portion 8b to strengthen the body structure of the first support portion 8a and the second support portion 8b.

[0042] Furthermore, as described above, by configuring the skeleton (beams 5) of the building 1 as a part of the parting wall 10, the skeleton structure of the parting wall 10 can be made stronger. Furthermore, since the beams 5 are covered with the fiber-based heat insulating material 5c, even if the beams 5 are configured as part of the parting wall 10, the "fire resistance performance" of the parting wall 10 can be ensured.

[0043] <Other embodiments> In the above embodiment, as shown in Figs. 2 and 5, the roof support member has a gap 8c formed in the main building 8 for passing the parting wall 10 therethrough, but this is not particularly limited. For example, a gap may be formed in the roof support member relative to the ridge beam 7 to allow the parting wall 10 to pass through. Alternatively, a gap may be formed in the roof support member relative to a cloud brace (not shown). Additionally, a gap may be formed in the roof support member facing the parting wall 10.

[0044] In the above embodiment, as shown in Figs. 3 to 5, the parting wall panel 11 of the parting wall 10 extends from the foundation 2 to the attic 70, but this is not particularly limited. For example, the parting wall panel 11 may extend at least from under the floor (under the floor of the first floor) to above the ceiling (above the ceiling of the top floor).

[0045] In the above embodiment, as shown in FIG. 5, the roof 40 is, for example, a roof surface material, and the rafters 6 are members that support the roof 40. On the other hand, the roof may be a "roof panel." In that case, the roof panel may be configured to have a roof surface material 40 and a base material 6 attached to the back surface of the roof surface material 40.

[0046] In the above embodiment, the fire-resistant building and the construction method for the fire-resistant building according to the present invention have 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 and improved without departing from the spirit thereof, and the present invention naturally includes equivalents thereof. [Explanation of symbols]

[0047] 1 Buildings (fireproof buildings) 2 Basics 3 floor bundle 4 pillars 5 Beam 5a Floor beam 5b shed beam 5c Fiber insulation 6 Rafters (base material) 7. Ridge beam (first supporting member) 8 Purlin (first supporting member) 8a 1st support part 8b Second support part 8c Gap 9 Truss 9a Truss erection section (roof beam) 9b Truss inclined section (gable) 10 Parting Wall 11 Parting wall panels (fire-resistant panels, ALC panels) 11A 1st Panel 11B Second Panel 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 22 Floor Panel 30 Ceiling 30A First Ceiling 30B 2nd ceiling 31 Fiber-based insulation materials 40 Roof (roof surface material, roof panel) 50 Exterior Wall 60 Attic 70 Attic (attic)

Claims

1. The roof and a roof support member for supporting the roof; A fire-resistant building equipped with a fire-resistant parting wall, The roof support member has a first support member that is disposed at a height position facing the partition wall and extends in a direction intersecting the partition wall, a gap for passing the partition wall is formed in a portion of the first support member that corresponds to the partition wall in the extension direction of the first support member; The partition wall has a fire-resistant partition wall panel, The parting wall panel is It extends from under the floor of the fireproof building to the attic, A fire-resistant building characterized in that it passes through the gap formed in the first support member and extends above the first support member.

2. The first support member includes: a purlin supporting the roof and rafters extending in the direction of extension of the roof and extending transversely to the rafters; or A purlin supports the roof panel as the roof and extends in a direction intersecting the base material of the roof panel, The parting wall panel is The rafters or the base members extend in the same direction as the extension direction of the base members, and the purlins extend in a direction intersecting the extension direction of the base members. A fire-resistant building as described in claim 1, characterized in that it passes through the gap formed in the main building, extends to a height position opposite the rafters or the base material, and is positioned between multiple rafters or the base material.

3. the partition wall includes a first board and a second board, each of which has sound insulation properties and is provided at a position sandwiching the partition wall panel in a thickness direction of the partition wall; The parting wall panel of the parting wall extends from under the floor of the fire-resistant building to the attic, 3. The fire-resistant building according to claim 1, wherein the first board and the second board are arranged in a position in the parting wall that does not reach the attic.

4. The parting wall panel is an aerated concrete panel (ALC panel), The first board and the second board are a first gypsum board and a second gypsum board, respectively, 4. The fire-resistant building according to claim 3, wherein the partition wall further includes a fiber-based insulating material between the ALC panel and the first gypsum board in the thickness direction of the partition wall.

5. the roof support member further includes a truss that supports the first support member, extends in a direction intersecting an extension direction of the first support member, and is disposed adjacent to the partition wall panel; the first support member has a first support portion and a second support portion that sandwich the partition wall panel therebetween, the partition wall panel passes through the gap formed between the first support portion and the second support portion, 3. The fireproof building according to claim 1, wherein the truss supports only the second support portion of the first support portion and the second support portion.

6. the first support member has a first support portion and a second support portion that sandwich the partition wall panel therebetween, The parting wall panel is passing through the gap formed between the first support portion and the second support portion, 3. A fireproof building according to claim 1, wherein the building is supported from above or below by beams that extend along the parting wall panels in the attic and are covered with fiber-based insulation.

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