Dry floor support beams and beam-to-floor structure

Abstract

To provide a beam and floor housing structure fixed to a middle position of a beam in a state where a dry type floor is dropped into the middle position which can dispense with a large number of floor receiver substrate fittings for supporting the dry type floor, and can dispense with a large number of bolt holes for mounting the large number of floor receiver substrate fittings to a web, and a dry type floor receiver beam constituting the same.SOLUTION: A dry type floor receiving beam has a beam body 10 formed of an H-shaped steel having upper and lower flanges 12 and 13 and a web 11, and a plurality of box-shaped substrate materials 50 that are provided on one wide surface of the web 11 at an interval in a longitudinal direction of the beam body 10 and have U-shaped or approximately U-shaped cross-sectional shapes, in which a floor receiving material 55 for supporting a dropped type dry type floor 40 can be mounted on a vertical piece 51 constituting the box-shaped substrate materials 50, and the vertical piece 51 is arranged so as to be flush with ends 12a and 13a of the flanges 12 and 13 or be positioned outside the ends 12a and 13a.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a dry floor support beam and a structure for fitting the beam to a floor. [Background technology]

[0002] When a dry floor is applied to a building, a beam and floor fitting structure is generally formed by placing a part of the dry floor on the top surface of the beam (the top surface of the upper flange in the case of a beam formed by H-shaped steel). On the other hand, in balconies, unit baths, etc., a beam and floor fitting structure in which a part of the floor is recessed may be applied to make the floor level flat, ensure the water gradient, and ensure the relative level relationship with the interior floor. In this structure in which the dry floor is recessed and supported by the beam, the dry floor is fixed to the web in a recessed state via the floor support base metal fitting fixed to the web of the beam, not the top end of the beam, and the floor support metal fitting attached to the floor support base metal fitting. An example of this beam and floor fitting structure will be described with reference to FIG. 1.

[0003] Fig. 1 is a vertical cross-sectional view showing an example of a conventional beam-floor fitting structure in a balcony. In the beam-floor fitting structure 100 shown in the figure, a plurality of floor support base metal fittings 21 made of channel steel or the like are attached to the wide surface on the indoor side of the web 11 of the beam body 10 made of H-shaped steel. Each floor support base metal fitting 21 is attached to a floor support metal fitting 22 made of angle steel or the like, and a dry floor 40 is placed on the floor support metal fittings 22 in a dropped state.

[0004] A waist wall support base metal fitting 23 made of angle iron or the like is fixed to the wide surface facing the exterior of web 11 of beam body 10, and a waist wall support base metal fitting 24 similarly made of angle iron or the like is fixed to waist wall support base metal fitting 23. The above-mentioned fixing of web 11 to floor support base metal fitting 21 and the fixing of web 11 to waist wall support base metal fitting 23 are both performed by aligning bolt holes opened in both metal fittings and fastening them with bolts.

[0005] The waist wall 30 has a waist wall frame 31, a waist wall panel 32 fixed to the indoor side and the outdoor side by screws or the like, and a coping 35 attached to the top end of the panels 32 via a water-stopping material 34, and is fixed by bolting the legs of the waist wall frame 31 to the waist wall support bracket 24. A fire-resistant coated molded plate 36 is arranged on the upper surface of the upper flange 12 of the beam body 10 between the end of the dry floor 40 and the waist wall frame 31, and the upper surface of the dry floor 40 and the upper surface of the fire-resistant coated molded plate 36 are flat. The waist wall panel 32 on the indoor side of the waist wall 30 is cut off halfway, and a water drain cover 37e is attached to the lower end of the waist wall panel 32, and a waterproof base plywood 37a is attached below it. A waterproof base material 38a and a waterproof sheet 38b are laid on the upper surface of the dry floor 40 and the upper surface of the fire-resistant coated molded plate 36, and a predetermined water gradient is provided on the balcony.

[0006] As described above, a plurality of floor support base fittings 21 are attached to the wide surface of the web 11 at intervals in the longitudinal direction of the beam body 10, and the dry floor 40 is supported in a dropped state by the floor support fittings 22 attached to each floor support base fitting 21, but conventional floor support base fittings 21 are generally fixed at a pitch of 305 mm or less on the wide surface of the web 11. For this reason, the web 11 of the beam body 10 requires bolt holes for attaching the many floor support base fittings 21, and there is a problem in that a large number of floor support base fittings 21 are required.

[0007] In addition, various equipment through holes, including openings for water distribution pipe ducts, can be provided in the web 11 of the beam body 10, but there is also the issue that the numerous floor support base fittings 21 attached to the web 11 are likely to interfere with the various equipment through holes and other mounting fittings, etc.

[0008] Here, Patent Document 1 proposes a balcony greening structure in which a waist wall (here, a handrail wall) is supported by the upper flange of the balcony floor beam, and a dry floor is supported from the upper flange via a bracket. In this balcony greening structure, the legs of a support column are joined to the handrail support columns that make up the handrail wall, and a plant support beam is spanned across the brackets attached to the support columns. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] JP 2017-127196 A Summary of the Invention [Problem to be solved by the invention]

[0010] Patent Document 1 does not disclose a beam and floor fitting structure in which a dry floor is supported in a dropped state via floor support base fittings attached to the web of the balcony floor beam, and therefore does not resolve the various issues that arise from the fact that a large number of floor support base fittings are attached to the web of the beam in a fitting structure that assumes the dropping of the dry floor.

[0011] The present invention has been made in consideration of the above-mentioned problems, and relates to a beam and floor fitting structure in which a dry floor is fixed in a dropped position halfway up the beam, and its object is to provide a dry floor support beam that eliminates the need for a large number of floor support base fittings to support the dry floor and a large number of bolt holes to attach the large number of floor support base fittings to the web, and a beam and floor fitting structure that includes this dry floor support beam. [Means for solving the problem]

[0012] In order to achieve the above object, one aspect of the dry floor support beam according to the present invention is as follows: A beam body formed by an H-shaped steel having upper and lower flanges and a web; A plurality of box-shaped base members having a U-shaped or approximately U-shaped cross section are provided on one wide surface of the web at intervals in the longitudinal direction of the beam body, A through-floor support member that supports a drop-in type dry floor is attached to the vertical piece that constitutes the box-shaped base material, The vertical piece is characterized in that it is disposed flush with the end of the flange or at a position outside the end.

[0013] According to this embodiment, a plurality of box-shaped base members having a U-shaped or approximately U-shaped cross section are provided on the wide surface of the web of the beam body, and a through floor support member extending in the longitudinal direction of the web is attached to the box-shaped base members, which eliminates the need for a large number of floor support base metal fittings to support the dry floor and a large number of bolt holes for bolting each floor support base metal fitting to the web. Since the cross section of the box-shaped base member is U-shaped or the like, the box-shaped base member has high rigidity, and therefore it is sufficient to attach it to the web at a pitch of about 1 m to 1.5 m, which is significantly longer than the arrangement pitch (305 mm or less) of floor support base metal fittings formed of conventional channel steel or the like. Here, "the box-shaped base member is provided on one wide surface of the web" includes a form in which the box-shaped base member is fixed to the web by, for example, welding. In this way, since the box-shaped base material is provided on one of the wide surfaces of the web, there is no need to open bolt holes for attachment in the web. The U-shaped box-shaped base material can be formed, for example, by bending a flat bar into a U-shape, or by welding three flat bars together.

[0014] In this embodiment, the vertical pieces constituting the box-shaped base material are arranged flush with the ends of the upper and lower flanges of the dry floor support beam or on the outer side of the ends, which improves the ease of attachment of the through-floor support material to the vertical pieces. Furthermore, since the vertical pieces are located relatively far from the web, interference between the vertical pieces and other members (including bolts) attached to the web can be suppressed.

[0015] Another aspect of the dry floor support beam according to the present invention is characterized in that the through floor support material extending in the longitudinal direction of the beam body is attached to the vertical pieces of the multiple box-shaped base materials.

[0016] According to this embodiment, the through floor support extending in the longitudinal direction of the beam body is attached to the vertical pieces of the multiple box-shaped base materials, and the dry floor is placed in a dropped state on the through floor support, so that the through floor support can stably support the dry floor. Here, the through floor support is fixed to the vertical pieces of the box-shaped base material by aligning the bolt holes opened in the through floor support with the bolt holes opened in the vertical pieces and bolting them together. The through floor support is formed of shaped steel such as angle iron, and depending on the dropping manner, there is a usage form in which the angle iron is arranged in an L shape and attached to the box-shaped base material, and a usage form in which the angle iron is arranged in an inverted L shape and attached to the box-shaped base material.

[0017] Another aspect of the dry floor beam according to the present invention is characterized in that a wall support material for supporting a wall is attached to the wide surface of the web opposite to the wide surface to which the box-shaped base material is attached.

[0018] According to this embodiment, a plurality of box-shaped base materials are fixed to one wide surface of the web, and a wall support material is attached to the other wide surface of the web to support various walls such as the outer wall of the building, the waist wall constituting the balcony, and the partition wall and partition wall in the room, so that the dry floor support beam has both a support function for the drop-in type dry floor and a support function for the wall. Here, the support form of the wall by the wall support material may be a form in which it enters the inside of the wall from the side below and is bolted to the component member of the wall, or a form in which the bottom end of the wall is supported from below, etc.

[0019] Another aspect of the dry floor support beam according to the present invention is characterized in that reinforcing ribs are provided inside the box-shaped base material, which are fixed to the upper horizontal piece, the vertical piece, and the lower horizontal piece that constitute the box-shaped base material.

[0020] According to this aspect, one or more reinforcing ribs are provided inside the U-shaped or approximately U-shaped box-shaped base material, thereby forming a box-shaped base material with even higher rigidity. Here, it is preferable that the reinforcing ribs are fixed to the upper horizontal piece, the vertical piece, and the lower horizontal piece that constitute the box-shaped base material by welding or the like.

[0021] In another aspect of the dry floor support beam according to the present invention, the box-shaped base material is substantially U-shaped, and is formed by fixing a lower horizontal piece to the middle position of a vertical piece of a steel material having an L-shaped cross section, the vertical piece being provided with an upper horizontal piece and the vertical piece, The gap formed by the lower horizontal piece and the vertical piece is a gap for preventing interference with other members.

[0022] According to this embodiment, the approximately U-shaped box-shaped base material has a gap formed below it by a lower horizontal piece and a vertical piece, and this gap is a gap to prevent interference with other components (including bolts) connected to the beam body, for example, so that the box-shaped base material can support the dry floor while avoiding interference with other components.

[0023] In addition, one aspect of the beam and floor fitting structure according to the present invention is as follows: A beam and floor fitting structure comprising the dry floor support beam and a dry floor supported by the dry floor support beam, The dry floor is placed and fixed onto the through-floor support in a dropped state.

[0024] According to this embodiment, a dry floor support beam is applied in which multiple box-shaped base materials, such as those with a U-shaped cross-sectional shape, are fixed to the wide surface of the web of the beam body, and a through floor support material extending in the longitudinal direction of the web is attached to this box-shaped base material.This makes it possible to stably support the dry floor with the through floor support material, eliminating the need for a large number of floor support base fittings and a large number of bolt holes in the web for supporting the dry floor.

[0025] In addition, in another aspect of the beam and floor fitting structure of the present invention, the dry floor is one of an ALC panel or a precast concrete panel, and is fixed to the flange via a fixing bracket.

[0026] According to this embodiment, by using ALC (Autoclaved Lightweight Concrete) floor slabs (ALC panels) or precast concrete floor slabs (PCa floor slabs, PCa panels) as the dry floor, workability is improved and a beam and floor fitting structure with excellent fire resistance can be formed.

[0027] In another aspect of the beam and floor fitting structure according to the present invention, the dry floor is a balcony floor slab, The dry floor support beam is a balcony floor beam, The balcony floor slab is disposed on the indoor side of the balcony floor beam, The balcony has a floor beam and a pedestal wall. The wall support material supports the waist wall.

[0028] According to this embodiment, by applying a dry floor support beam (balcony floor beam) in which multiple box-shaped base materials, such as those with a U-shaped cross-sectional shape, are fixed to the wide surface of the web of the beam body, it is possible to form a balcony that provides stable support for the waist wall and has a predetermined water gradient, while eliminating the need for a large number of floor support base fittings to support the dry floor (balcony deck) and a large number of bolt holes in the web.

[0029] In addition, another embodiment of the beam and floor fitting structure according to the present invention is a structure in which an exterior corridor or balcony and a flat roof are provided on the left and right sides of the spandrel wall, respectively. The dry floor is an exterior corridor floor slab or a balcony floor slab, The dry floor support beam is an exterior corridor floor beam or a balcony floor beam, The wall support material supports the waist wall.

[0030] According to this embodiment, even in a configuration in which there is a flat roof on one side of a waist wall (handrail waist wall) and an exterior corridor or balcony of an apartment building on the other side, by applying a dry floor support beam (exterior corridor floor beam or balcony floor beam) in which multiple box-shaped base materials with a cross-sectional shape such as a U-shape are fixed to the wide surface of the web of the beam body, it is possible to eliminate the need for numerous floor support base fittings to support the dry floor (exterior corridor floor slab or balcony floor slab) and numerous bolt holes in the web, while ensuring stable support of the waist wall and allowing the formation of both a flat roof and an exterior corridor or balcony with a prescribed water gradient.

[0031] In another aspect of the beam and floor fitting structure according to the present invention, the dry floor is an entrance floor slab, The dry floor support beam is an entrance floor beam, The entrance floor slab is placed and fixed to the through floor support material of the entrance floor beam, and the entrance floor slab is placed and fixed to the upper flange of the entrance floor beam.

[0032] According to this embodiment, by applying a dry floor support beam (entrance floor beam) in which multiple box-shaped base materials, such as those with a U-shaped cross-sectional shape, are fixed to the wide surface of the web of the beam body, it is possible to form an entrance floor and entrance floor that are arranged via the entrance frame, while eliminating the need for numerous floor support base fittings to support the dry floor (entrance floor slab) and numerous bolt holes in the web.

[0033] In another aspect of the beam and floor fitting structure according to the present invention, the dry floor is a bathroom floor slab, The dry floor support beam is a bathroom floor beam, The bathroom floor slab is placed and fixed to the through floor support material of the bathroom floor beam, and the washroom floor slab is placed and fixed to the upper flange of the bathroom floor beam.

[0034] According to this embodiment, by applying a dry floor support beam (bathroom floor beam) in which multiple box-shaped base materials, such as a U-shaped cross-sectional shape, are fixed to the wide surface of the web of the beam body, it is possible to form a bathroom such as a unit bath and an adjacent washroom without the need for multiple floor support base fittings to support the dry floor (bathroom floor slab) and multiple bolt holes in the web. Effect of the Invention

[0035] As can be understood from the above explanation, the dry floor support beam and the beam-to-floor fitting structure of the present invention eliminate the need for a large number of floor support base fittings to support the dry floor, and also eliminate the need for a large number of bolt holes to attach the large number of floor support base fittings to the web. [Brief description of the drawings]

[0036] [Figure 1] FIG. 1 is a vertical cross-sectional view of an example of a conventional beam and floor fitting structure. [Diagram 2] FIG. 2 is an exploded perspective view of an example of a dry floor support beam according to an embodiment, showing a through floor support material in two mounting positions. [Diagram 3] FIG. 2 is a perspective view of an example of a dry floor support beam according to an embodiment. [Figure 4] A diagram showing another modified example of the box-shaped base material. [Diagram 5] FIG. 2 is a vertical cross-sectional view of an example of a beam and floor fitting structure according to the first embodiment. [Figure 6A] FIG. 11 is a vertical cross-sectional view of an example of a beam and floor fitting structure according to the second embodiment. [Figure 6B] FIG. 11 is a vertical cross-sectional view of another example of a beam and floor fitting structure according to the second embodiment. [Figure 7] FIG. 11 is a vertical cross-sectional view of an example of a beam and floor fitting structure according to the third embodiment. [Figure 8] FIG. 13 is a vertical cross-sectional view of an example of a beam and floor fitting structure according to the fourth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0037] Hereinafter, an example of a dry floor support beam and an example of a beam-to-floor fitting structure according to an embodiment will be described with reference to the accompanying drawings. In this specification and the drawings, substantially identical components may be designated by the same reference numerals to avoid redundant description.

[0038] [Dry floor support beam according to the embodiment] First, an example of a dry floor support beam according to the embodiment will be described with reference to Fig. 2 to Fig. 4. Here, Fig. 2 is an exploded perspective view of an example of a dry floor support beam according to the embodiment, showing a through floor support member in two mounting positions, and Fig. 3 is a perspective view of an example of a dry floor support beam according to the embodiment.

[0039] The illustrated dry floor support beam 15 has a beam body 10 formed from an H-shaped steel having a web 11, an upper flange 12 and a lower flange 13, a plurality of (two in the illustrated example) box-shaped base materials 50 fixed to one wide surface of the web 11, and a through floor support material 55 attached to each box-shaped base material 50.

[0040] The through floor support 55 is formed from angle iron, and Figure 2 shows two positions of the through floor support 55 that can be attached to each box-shaped base material 50, one (center figure in Figure 2) is designed to be attached to the box-shaped base material 50 in an inverted L-shaped position, and the other (bottom figure in Figure 2) is designed to be attached to the box-shaped base material 50 in an L-shaped position.

[0041] 2 has a vertical piece 56 and an upper horizontal piece 57 (upper horizontal piece), and the vertical piece 56 has two pairs of bolt holes 56a that are bolted to the two box-shaped base members 50, and a reinforcing rib 58 that is triangular in plan view is welded to the center of each pair of bolt holes 56a. With the through floor support 55 bolted to each box-shaped base member 50 in this position, a dry floor will be placed on the top surface of the upper horizontal piece 57.

[0042] 2 has a vertical piece 56 and a lower horizontal piece 57 (lower horizontal piece), and the vertical piece 56 has two pairs of bolt holes 56a that are bolted to the two box-shaped base materials 50. In the through floor support material 55 that is bolted to each box-shaped base material 50 in this position, a dry floor is dropped and placed between the upper surfaces of the vertical piece 56 and the lower horizontal piece 57.

[0043] The box-shaped base material 50 has a U-shaped cross section and comprises a vertical piece 51, an upper horizontal piece 52, and a lower horizontal piece 53, with a reinforcing rib 54 made of flat steel welded to the inside of the U-shape. In the vertical piece 51, bolt holes 51a are opened on the left and right positions of the reinforcing rib 54, and are aligned with bolt holes 56a provided in the through-floor support material 55 so that bolts can be inserted through them.

[0044] Furthermore, the vertical pieces 51 constituting the box-shaped base material 50 are disposed flush with the ends 12a, 13a of the upper and lower flanges 12, 13 of the beam body 10 or at positions outside the ends 12a, 13a (when the width from the web 11 to the flange ends is t1 and the width from the web 11 to the outer surface of the vertical pieces 51 is t2, t2≧t1). This improves the attachment of the through floor support material 55 to the vertical pieces 51, and since the vertical pieces 51 are located relatively far from the web 11, interference between the vertical pieces 51 and other members, bolts, etc. attached to the web 11 can be suppressed.

[0045] An upper horizontal piece 52 and a lower horizontal piece 53 of a box-shaped base material 50 and an end piece of a reinforcing rib 54 are welded to the wide surface of the web 11 of the beam body 10. In this specification, "welding" refers to appropriate welding selected according to the strength required for the joint and the joint type (rigid connection, pin connection), such as groove welding (full penetration welding, partial penetration welding) and fillet welding.

[0046] For example, the through floor support material 55 shown in the central diagram of Figure 2 is aligned with the box-shaped base material 50 attached to the beam body 10 shown in Figure 2, and bolts are inserted into the corresponding bolt holes 51a, 56a and the nuts are tightened (joining with bolts and nuts 59) to form the dry floor support beam 15 shown in Figure 3.

[0047] Here, the illustrated example of the dry floor support beam 15 has two box-shaped base materials 50 joined to the web 11 of the beam body 10, but three or more box-shaped base materials 50 may be joined depending on the length of the dry floor support beam 15, etc. Since the cross-sectional shape of the box-shaped base material 50 is U-shaped or the like, the box-shaped base material 50 has high rigidity. Therefore, it can be attached to the web 11 at a pitch of about 1 m to 1.5 m, which is significantly longer than the arrangement pitch (305 mm or less) of floor support base metal fittings formed from conventional channel steel or the like.

[0048] A wall support member 60 (see FIG. 5, etc.) that supports a wall is attached to the web 11 by bolting or the like to the other wide surface of the web 11 shown in FIG. 3 (the wide surface on the side to which the box-shaped base material 50 is not joined). In this way, the dry floor support beam 15 in a form in which the wall support member 60 is attached to the other wide surface of the web 11 has both the function of supporting the dry floor in a dropped state and the function of supporting a wall such as a waist wall.

[0049] Another modified example of the box-shaped base material is shown in Fig. 4. The box-shaped base material 50A shown in Fig. 4 is a box-shaped base material having a substantially U-shape, and has an upper horizontal piece 52 and a vertical piece 51 with an L-shaped (inverted L-shaped) cross section formed by bending flat steel or the like, and a lower horizontal piece 53A made of a separate flat steel is attached by welding to the middle position of the vertical piece 51. More specifically, a reinforcing rib 54 made of flat steel is welded to the center position on the inside of the upper horizontal piece 52 and the vertical piece 51, and the two lower horizontal pieces 53A are welded to the vertical piece 51 and the reinforcing rib 54, respectively, to form the box-shaped base material 50A.

[0050] According to the box-shaped base material 50A, the lower horizontal piece 53A is positioned higher than the box-shaped base material 50 shown in Fig. 2, so a gap G is formed below the lower horizontal piece 53A. As a result, if the lower horizontal piece 53 interferes with other metal fittings, bolts, etc. when the box-shaped base material 50 is applied, the application of the box-shaped base material 50A can eliminate such interference with other components.

[0051] According to the dry floor support beam 15, multiple box-shaped base materials 50, 50A having a U-shaped or approximately U-shaped cross-sectional shape are fixed to the wide surface of the web 11 of the beam body 10, and a through floor support material 55 extending in the longitudinal direction of the web 11 is attached to the box-shaped base materials 50, 50A, thereby eliminating the need for numerous floor support base fittings to support the dry floor and the need for numerous bolt holes to bolt each floor support base fitting to the web.

[0052] [Beam and floor fitting structure according to the embodiment] Next, an example of a fitting structure between a beam and a floor according to each embodiment will be described with reference to Figs.

[0053] <Beam and floor fitting structure according to the first embodiment> First, an example of a fitting structure of a beam and a floor according to the first embodiment will be described with reference to Fig. 5. Here, Fig. 5 is a vertical cross-sectional view of an example of a fitting structure of a beam and a floor according to the first embodiment.

[0054] The beam-to-floor fitting structure 200 shown in Fig. 5 is an example of a fitting structure for a balcony floor beam and a balcony floor slab, similar to Fig. 1. In the beam-to-floor fitting structure 200, a balcony floor slab 40A (an example of a dry floor) is placed in a dropped state onto a through floor support material 55 provided on a balcony floor beam 15A (an example of a dry floor support beam).

[0055] A through hole 41 is opened in the balcony deck 40A, and the tip of a fixing bracket 42 is dropped into the through hole 41 and engages with the underside of the horizontal piece 57 (upper horizontal piece) of the through floor support material 55, thereby fixing the balcony deck 40A to the balcony floor beam 15A.

[0056] Here, an ALC floor slab (ALC panel) or a precast concrete floor slab (PCa panel) is applied to the balcony floor slab 40A.

[0057] Meanwhile, a wall support material 60 is attached with bolts and nuts 62 via fixing pieces 61 to the wide surface facing the outdoors of web 11 of beam body 10 constituting balcony floor beam 15A, and wall support material 60 projecting to the outdoors supports the balcony waist wall 30. Waist wall 30 has waist wall frame 31, waist wall panels 32 fixed to the indoor and outdoor sides thereof with screws or the like, and copings 35 attached to their top ends via water-stopping material 34, and the legs of waist wall frame 31 are fixed to wall support material 60 by bolting.

[0058] A fireproof coating molded plate 36 is disposed on the upper surface of the upper flange 12 of the balcony floor beam 15A, between the end of the balcony floor slab 40A and the waist wall 30, and the upper surface of the balcony floor slab 40A and the upper surface of the fireproof coating molded plate 36 are flat. The waist wall panel 32 on the indoor side of the waist wall 30 is cut off midway, and a water drain cover 37e is attached to the lower end of the waist wall panel 32, and further below that, a waterproof base plywood 37a and a rising waterproof base board 37b are attached, and these are covered with rising waterproof sheets 37c and 37d. A waterproof base material 38a and a waterproof sheet 38b are laid on the upper surface of the balcony floor slab 40A and the upper surface of the fireproof coating molded plate 36, and a predetermined water gradient is provided.

[0059] According to the beam and floor fitting structure 200, the balcony floor slab 40A is supported in a dropped state by the balcony floor beam 15A which is equipped with a plurality of box-shaped base materials 50, and the balcony waist wall 30 is supported by the wall support materials 60 which the balcony floor beam 15A is equipped with, thereby eliminating the need for numerous floor support base fittings and numerous bolt holes in the web, and the waist wall 30 is stably supported, and a balcony with a prescribed water gradient is formed.

[0060] <Beam and floor fitting structure according to the second embodiment> Next, an example and another example of the beam and floor fitting structure according to the second embodiment will be described with reference to Fig. 6A and Fig. 6B. Here, Fig. 6A and Fig. 6B are vertical cross-sectional views of an example and another example of the beam and floor fitting structure according to the second embodiment, respectively.

[0061] The beam and floor fitting structure 300 shown in Fig. 6A is a beam and floor fitting structure in a configuration in which a flat roof is provided on one side (left side in the illustrated example) of the handrail waist wall 30, and an apartment balcony is provided on the other side. The balcony side has a structure almost similar to the beam and floor fitting structure 200 shown in Fig. 5, and the balcony floor slab 40A is placed in a dropped state against the through floor support material 55 provided on the balcony floor beam 15A, forming a balcony with a specified water gradient.

[0062] Meanwhile, a dry floor 45' having approximately the same width as the waist wall is disposed below the waist wall 30, and a wall support member 60 of the balcony floor beam 15A supports the dry floor 45' from below.

[0063] A flat roof with a specified water gradient is provided on the left side of the waist wall 30, and on this flat roof, a dry floor 45 is placed on the upper surface of the upper flange 12' of a floor beam 10' formed from H-shaped steel, through holes 41 are opened in the dry floor 45, and the tips of fixing brackets 42 dropped into the through holes 41 engage with the underside of the upper flange 12', thereby fixing the dry floor 45 to the floor beam 10'. A gradient insulation material 38c is placed on the upper surface of the dry floor 45, and a waterproof base material 38a and a waterproof sheet 38b are laid on top of that.

[0064] On the other hand, the beam and floor fitting structure 400 shown in Fig. 6B is a beam and floor fitting structure in a form in which a flat roof is provided on one side (left side in the illustrated example) of the waist wall 30, which is a handrail waist wall, and an exterior corridor of an apartment building is provided on the other side. On the exterior corridor side, it has a structure similar to the beam and floor fitting structure 300 shown in Fig. 6A, and the exterior corridor floor slab 40B is placed in a dropped state against the through floor support material 55 provided on the exterior corridor floor beam 15B, forming an exterior corridor with a predetermined water gradient. Also, on the left side of the waist wall 30, a flat roof with a predetermined water gradient is provided as in Fig. 6A.

[0065] The beam and floor fitting structures 300, 400 also allow the balcony floor slab 40A and the exterior corridor floor slab 40B to be supported in a dropped state by the balcony floor beams 15A and the exterior corridor floor beams 15B which are equipped with a plurality of box-shaped base materials 50, and the waist wall 30 is supported by the wall support materials 60 provided on the balcony floor beams 15A and the exterior corridor floor beams 15B, thereby eliminating the need for numerous floor support base fittings and numerous bolt holes in the web, and allowing the formation of a balcony or exterior corridor with a prescribed water gradient.

[0066] <Beam and floor fitting structure according to the third embodiment> Next, an example and another example of the fitting structure of the beam and the floor according to the third embodiment will be described with reference to Fig. 7. Here, Fig. 7 is a vertical cross-sectional view of the example and another example of the fitting structure of the beam and the floor according to the third embodiment.

[0067] The beam and floor fitting structure 500 shown in Figure 7 is a beam and floor fitting structure in a configuration that includes a bathroom that constitutes a unit bath, a washroom on one side of the bathroom (right side in the illustrated example), and an exterior wall and an interior wall on the other side of the bathroom (left side in the illustrated example), in which a bathroom floor slab 40C is supported in a dropped state relative to two bathroom floor beams 15C, 15C' on the left and right.

[0068] In the web 11 of the beam body 10 that constitutes the bathroom floor beam 15C on the washroom side, multiple box-shaped base materials 50 are joined to the wide surface on the left side, which is the bathroom side, and a through-floor support material 55 is arranged in an L-shaped position on each box-shaped base material 50 and attached via bolts and nuts 59.

[0069] On the other hand, in the web 11 of the beam body 10 that constitutes the bathroom floor beam 15C' on the exterior wall side, multiple box-shaped base materials 50 are joined to the wide surface on the right side, which is the bathroom side, and a through floor support material 55 is arranged in an L-shaped position on each box-shaped base material 50 and attached via bolts and nuts 59.

[0070] Bathroom floor slab 40C is placed in a dropped state onto through floor support materials 55 on the left and right. Through holes 41 are opened in bathroom floor slab 40C, and the tips of fixing brackets 42 dropped into through holes 41 engage with the underside of horizontal pieces 57 (lower horizontal pieces) of through floor support materials 55, thereby fixing bathroom floor slab 40C to left and right bathroom floor beams 15C, 15C'.

[0071] In the bathroom floor beam 15C, a dry floor 46 (bathroom floor slab) for the washroom is placed on the upper surface of the upper flange 12 of the beam body 10, and a dry floor 48 is installed vertically to close the gap between the dry floor 46 and the bathroom floor slab 40C. A through hole 41 is opened in the dry floor 46, and the tip of a fixing bracket 42 dropped into the through hole 41 engages with the underside of the upper flange 12, thereby fixing the dry floor 46 to the bathroom floor beam 15C. A number of floor components are laid in order on the upper surface of the dry floor 46 to form the washroom, and a bathroom door 72 is provided to connect the washroom and the bathroom in an openable and closable manner. A fire-resistant covering material 67 is arranged around the bathroom floor beam 15C, and one end of the fire-resistant covering material 67 is fixed to the underside of the dry floor 46, and surrounds the bathroom floor beam 15C from the washroom side to the underside of the lower flange 13 and further to the underside of the bathroom floor slab 40C. Although not shown in the figure, for example, there may be a partition wall at the back of the page, and the partition wall may be supported by the dry floor 46.

[0072] On the other hand, in the bathroom floor beam 15C', a thin dry floor 47 is placed on the upper surface of the upper flange 12 of the beam body 10 via a fire-resistant coated molded plate 65, and the gap between the dry floor 47 and the bathroom floor slab 40C is blocked by a vertically erected dry floor 48.

[0073] An interior wall 73 is supported on the dry floor 47, and the interior wall 73 has metal studs 74a and interior wall runners 74b, and an interior wall board 74c formed of gypsum board or the like.

[0074] In the bathroom floor beam 15C', a number of wall support members 60 made of bent gusset plates are bolted to the wide surface of the web 11 on the exterior wall side at intervals in the longitudinal direction of the beam body 10, and each wall support member 60 protrudes toward the exterior wall. Furthermore, mounting brackets 63 made of angle iron (an example of shaped steel) are attached by welding to the corners of the exterior wall side of each wall support member 60.

[0075] An exterior wall support bracket 64, which is a through bracket extending in the width direction of the exterior wall 75, is attached to mounting brackets 63 provided on multiple wall support members 60 that are attached at intervals in the longitudinal direction of the beam body 10. More specifically, the exterior wall support bracket 64 is also formed from angle iron, and bolts are inserted into bolt holes (not shown) opened in both brackets, and the exterior wall 75 is bolted to the exterior wall support bracket 64 by tightening the nuts (by bolt nuts 62). Since the exterior wall support bracket 64 is a through bracket fixed to multiple wall support members 60, the entire area of ​​the exterior wall 75 can be fixed by the exterior wall support bracket 17.

[0076] The exterior wall 75 has an exterior wall panel 76a, a panel frame 76b, and a heat insulating material 76c. The exterior wall panel 76a is formed of, for example, a ceramic or metal siding board. The panel frame 76b is formed by assembling channel steel into a frame shape. The heat insulating material 76c is formed of glass wool, rock wool, or the like.

[0077] Further, in the dead space S between one end of the dry floor 47 and the outer wall 75, a heat insulating and sound absorbing board 66 made of rock wool or the like is disposed.

[0078] The beam and floor fitting structure 500 also allows the bathroom floor slab 40C to be supported in a dropped state by the bathroom floor beams 15C, 15C', which have multiple box-shaped base materials 50, so that a washroom and bathroom can be formed without the need for numerous floor support base fittings and numerous bolt holes in the web.

[0079] <Beam and floor fitting structure according to the fourth embodiment> Next, an example and another example of the fitting structure of the beam and the floor according to the fourth embodiment will be described with reference to Fig. 8. Here, Fig. 8 is a vertical cross-sectional view of the example and another example of the fitting structure of the beam and the floor according to the fourth embodiment.

[0080] The beam and floor fitting structure 600 shown in Figure 8 is a beam and floor fitting structure in a configuration that includes an entrance floor that constitutes an entrance, an entrance floor on one side of the entrance floor (right side in the illustrated example), and an entrance door on the other side of the entrance floor (left side in the illustrated example), in which an entrance floor slab 40D is supported in a dropped state relative to two entrance floor beams 15D, 15D' on the left and right.

[0081] In the web 11 of the beam body 10 that constitutes the entrance floor beam 15D on the entrance floor side, multiple box-shaped base materials 50 are joined to the wide surface on the left side, which is the entrance floor side, and a through-floor support material 55 is arranged in an inverted L-shape on each box-shaped base material 50 and attached via bolts and nuts 59.

[0082] On the other hand, in the web 11 of the beam body 10 that constitutes the entrance floor beam 15D' on the entrance door side, multiple box-shaped base materials 50 are joined to the wide surface on the right side, which is the entrance floor side, and a through-floor support material 55 is arranged in an inverted L-shape on each box-shaped base material 50 and attached via bolts and nuts 59.

[0083] The entrance floor slab 40D is placed in a dropped state onto the left and right through-floor support members 55. The entrance floor slab 40D has through-holes 41, and the tips of the fixing brackets 42 dropped into the through-holes 41 engage with the underside of the horizontal pieces 57 (upper horizontal pieces) of the through-floor support members 55, thereby fixing the entrance floor slab 40D to the left and right entrance floor beams 15D, 15D'.

[0084] In the entrance floor beam 15D, a dry floor 46 (entrance floor slab) for the entrance floor is placed on the upper surface of the upper flange 12 of the beam body 10. A dirt floor mortar 78a is applied to the upper surface of the entrance floor slab 40D, and a plurality of tiles 78b are laid on the dirt floor mortar 78a. On the upper surface of the entrance floor slab 40D near the end on the entrance floor side, a crosspiece 77a is installed, and a plywood 77b and an entrance frame 77c are layered in order. On the other hand, a plurality of floor components are laid in order on the upper surface of the dry floor 46 to form the entrance floor, and the entrance frame 77c and the uppermost floor component are formed to be flush with each other. Although not shown in the figure, for example, there may be a partition wall on the back side of the paper, and the partition wall may be supported by the dry floor 46.

[0085] On the other hand, in the entrance floor beam 15D', a box-shaped base material 50 is also joined to the wide surface of the web 11 of the beam body 10 on the entrance door side, and a large-sized through floor support material 55' is attached to the box-shaped base material 50 with bolts and nuts 59. A fire-resistant coated molded plate 66 is placed on the upper surface of the upper flange 12, and a thin dry floor 47 is placed across the upper surface of the upper flange 12 and the upper surface of the through floor support material 55', with a dirt floor mortar 78a applied above these. An entrance door 79 is provided on the outdoor side of the dry floor 47.

[0086] The beam and floor fitting structure 600 also supports the entrance floor slab 40D in a dropped state by the entrance floor beams 15D, 15D', which are equipped with a plurality of box-shaped base materials 50, so that the entrance floor and entrance floor are formed without the need for numerous floor support base fittings and numerous bolt holes in the web.

[0087] In addition, the present invention is not limited to the configuration shown here, and may be implemented in other embodiments in which other components are combined with the configurations and the like of the above-mentioned embodiment. In this regard, the present invention may be modified within the scope of the gist of the present invention, and may be appropriately determined according to the application form. [Explanation of symbols]

[0088] 10,10A,10B,10C,10D: Beam body 11: Web 12: Upper flange (flange) 13: Lower flange (flange) 15:Dry floor support beam 15A: Balcony floor beam (dry floor support beam) 15B: Exterior corridor floor beam (dry floor support beam) 15C, 15C': Bathroom floor beams (dry floor beams) 15D, 15D': Entrance floor beams (dry floor support beams) 30: Waist wall 31: Waist wall frame 32: Waist wall panel 34:Water-stopping material 35: Kasagi 36: Fireproof coated molded board 37a: Waterproof plywood 37b: Rising waterproof base plate 37c, 37d: Stand-up waterproof sheet 37e: Drain cover 38a: Waterproofing base material 38b: Tarpaulin 38c: Gradient insulation 40:Dry floor 40A: Balcony floor slab (dry floor) 40B: Outside corridor floor slab (dry floor) 40C: Bathroom floor slab (dry floor) 40D: Entrance floor slab (dry floor) 41:Through hole 42: Fixing bracket 45, 46, 47, 48: Dry floor 50, 50A: Box-shaped base material 51: Vertical strip 51a: Bolt hole 52: Upper horizontal piece 53,53A: Lower horizontal piece 54: Reinforcement rib 55: Through floor support material 56: Vertical strip 56a: Bolt hole 57: Horizontal piece (upper horizontal piece, lower horizontal piece) 58: Reinforcement rib 59: Bolts and nuts 60: Wall support material 61: Fixed piece 62: Bolts and nuts 63: Mounting bracket 64: Exterior wall bracket 65: Fireproof coated molded board 66: Heat-insulating, sound-absorbing board 67: Fireproof covering material 72: Bathroom door 73:Inner wall 74a: Stud 74b: Inner wall runner 74c: Interior wall board 75: Exterior wall 76a: Exterior wall panel 76b: Panel frame 76c: Insulation 77a:Samaki 77b: Plywood 77c: Entrance stile 78a: Mortar floor 78b: Tile 79: Entrance door 200, 300, 400, 500, 600: Beam and floor structure G: Gap S: Dead Space

Claims

1. A beam body formed by an H-shaped steel having upper and lower flanges and a web; A plurality of box-shaped base members having a cross-sectional shape of a generally U-shape are provided on one wide surface of the web at intervals in the longitudinal direction of the beam body, A through-floor support member that supports a drop-in type dry floor is attached to the vertical piece that constitutes the box-shaped base material, The vertical piece is disposed flush with an end of the flange or outboard of the end, The box-shaped base material is formed by fixing a lower horizontal piece to a middle position of a vertical piece of a steel material having an L-shaped cross section, the vertical piece being provided with an upper horizontal piece, A dry floor support beam, characterized in that the gap formed between the lower horizontal piece and the vertical piece is a gap to prevent interference with other components.

2. 2. The dry floor support beam according to claim 1, wherein the through floor support member extending in the longitudinal direction of the beam body is attached to the vertical pieces of the plurality of box-shaped base members.

3. 3. A dry floor beam as described in claim 1 or 2, characterized in that a wall support material for supporting a wall is attached to the wide surface of the web opposite to the wide surface to which the box-shaped base material is attached.

4. A dry floor support beam as described in any one of claims 1 to 3, characterized in that reinforcing ribs are provided inside the box-shaped base material, which are fixed to the upper horizontal piece, the vertical piece, and the lower horizontal piece that constitute the box-shaped base material.

5. A beam and floor fitting structure comprising the dry floor support beam according to any one of claims 1 to 4 and a dry floor supported by the dry floor support beam, A beam and floor fitting structure, characterized in that the dry floor is placed and fixed onto the through-floor support in a dropped state.

6. The beam and floor fitting structure described in claim 5, characterized in that the dry floor is one of an ALC panel or a precast concrete panel, and the dry floor is fixed to the horizontal piece of the through-floor support material via fixing metal fittings.

7. The dry floor is a balcony floor slab, The dry floor support beam is a balcony floor beam, The balcony floor slab is disposed on the indoor side of the balcony floor beam, The balcony has a floor beam and a pedestal wall.

7. A beam and floor fitting structure as described in claim 5 or 6 when having a dry floor support beam as described in claim 3, characterized in that the wall support material supports the waist wall.

8. On either side of the waist-high wall, there is an exterior corridor or balcony and a flat roof. The dry floor is an exterior corridor floor slab or a balcony floor slab, The dry floor support beam is an exterior corridor floor beam or a balcony floor beam, 7. A beam and floor fitting structure as described in claim 5 or 6 when having a dry floor support beam as described in claim 3, characterized in that the wall support material supports the waist wall.

9. The dry floor is an entrance floor slab, The dry floor support beam is an entrance floor beam, The beam and floor fitting structure described in claim 5 or 6, characterized in that the entrance floor slab is placed and fixed to the through floor support material of the entrance floor beam, and the entrance floor slab is placed and fixed to the upper flange of the entrance floor beam.

10. The dry floor is a bathroom floor slab, The dry floor support beam is a bathroom floor beam, A beam and floor fitting structure as described in claim 5 or 6, characterized in that the bathroom floor slab is placed and fixed to the through floor support material of the bathroom floor beam, and the washroom floor slab is placed and fixed to the upper flange of the bathroom floor beam.

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