JP2021025308A - Floor structure, building and beam - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor structure, a building and a beam capable of securing a sufficient underfloor space for equipment inspection and piping laying. SOLUTION: A foundation beam 10, a floor receiving beam 20, and a floor slab 30 are provided, and the floor receiving beam 20 is bridged and supported between the foundation beam 10 and the foundation beam 10 facing the foundation beam 10. The floor structure 1 is such that at least one end 30a of the floor slab 30 is supported by the floor receiving beam 20, and the floor receiving beam 20 projects upward from the height of the upper end 10a of the foundation beam 10. 21 and floor receiving portions 22 and 23 projecting in the horizontal direction at a position lower than the upper end 21t of the floor receiving beam 20, and at least one end portion 30a of the floor slab 30 is formed by the floor receiving portions 22 and 23. It is characterized by being supported. [Selection diagram] Fig. 1

Description

The present invention relates to building floor structures, buildings and beams.

Conventionally, as a floor structure of a building, for example, a floor slab such as an ALC panel is supported from below by a floor receiving beam held so as to hang downward from the top surface of a rising portion such as a cloth foundation. ..

For example, Patent Document 1 describes a central connecting member placed on the top surface of a cloth foundation, a pair of standing members extending downward from both ends of the central connecting member along both side surfaces of the foundation, and each standing member. The beam receiver is provided with a beam receiver composed of a receiving member protruding outward from the lower end of the member, and the end of the floor receiving beam extending from both sides of the foundation to support the floor slab such as an ALC panel from below. A floor structure has been proposed in which the members are joined onto each receiving member of the hardware.

Japanese Unexamined Patent Publication No. 7-3930

However, in the floor structure as described above, since the floor receiving beam that receives the floor slab is held so as to be suspended downward from the top surface of the foundation beam, the underfloor space is divided by the floor receiving beam. It was difficult to secure enough space under the floor for facility inspection and piping laying.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a floor structure, a building, and a beam capable of securing a sufficient underfloor space for equipment inspection and pipe laying.

The floor structure according to the present invention includes a foundation beam, a floor receiving beam, and a floor slab.
The floor receiving beam is supported by being bridged between the foundation beam and the foundation beam facing the foundation beam, and at least one end of the floor slab is supported by the floor receiving beam. There,
The floor receiving beam has a main body portion that protrudes above the height of the upper end of the foundation beam, and a floor receiving portion that projects horizontally at a position lower than the upper end of the floor receiving beam.
It is characterized in that at least one end of the floor slab is supported by the floor receiving portion.

In the floor structure of the present invention, the cross-sectional shape of the floor receiving beam is preferably a hat type.

Further, in the floor structure of the present invention, the floor structure further has a floor slab positioning member.
The floor slab positioning member preferably has a wedge-shaped portion arranged between the floor slab and the adjacent floor receiving beam or between the floor slab and the wall slab.

Further, in the floor structure of the present invention, it is preferable that the lower end of the floor slab is higher than the upper end of the foundation beam.

Further, in the floor structure of the present invention, the upper end of the floor receiving beam is located below the upper end of the floor slab.
The floor slab positioning member has a connecting portion that connects a pair of wedge-shaped portions arranged at intervals, and the height of the upper end of the connecting portion is the same as the height of the upper end of the floor slab. It is preferably arranged so as to be lower than the height of the upper end of the floor slab.

Further, in the floor structure of the present invention, a floor receiving member that supports the floor slab and a raising member that supports the floor receiving member are arranged between the floor slab and the foundation beam. Is preferable.

Further, in the floor structure of the present invention, it is preferable that the floor receiving member that supports the floor slab and the wall receiving member that supports the wall slab are common members.

Further, the building of the present invention is characterized by having any of the above floor structures.

Further, the beam of the present invention is a beam as the floor receiving beam, and is characterized in that the cross-sectional shape is a hat type.

According to the present invention, it is possible to provide a floor structure, a building and a beam capable of securing a sufficient underfloor space for equipment inspection and pipe laying.

It is sectional drawing of the floor structure as one Embodiment of this invention. It is a perspective view which shows the floor slab, the floor receiving beam, and the floor slab positioning member in the floor structure of FIG. It is a perspective view which shows the floor receiving beam alone in the floor structure of FIG. (A) is a front view of the floor receiving beam shown in FIG. 3, (b) is a plan view, and (c) is a left side view. (A) to (c) are side views which show the modification of the floor receiving beam. (A) to (g) are side views which show the modification of the floor receiving beam.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The same reference numerals are given to the configurations common to each figure.

FIG. 1 shows a vertical cross section of a building 100 having the floor structure 1 of the present embodiment.

Here, the overall configuration of the building 100 as an example will be described. The building 100 can be, for example, a two-story house having a steel frame. Further, the building 100 is composed of a foundation structure fixed to the ground and an upper structure fixed on the foundation structure.

The foundation structure is located below the superstructure and supports its framework, and can be, for example, a foundation of a reinforced concrete structure. The superstructure is arranged on a skeleton (framework) composed of a plurality of columns and a plurality of beams erected between the columns, an outer wall arranged on the outer peripheral side of the skeleton, and a beam constituting the skeleton. It can be configured to include floors and roofs on each floor. The members constituting the framework can be standardized (standardized) in advance, manufactured in advance at the factory, and then carried to the construction site for assembly.

The building 100 includes an outer wall 101 (outer wall) that surrounds the outer periphery of the building 100, and the outer wall 101 includes a plurality of panel-shaped outer wall materials 102 made of, for example, lightweight cellular concrete (ALC), and a heat insulating material that constitutes a heat insulating layer. It can be configured to have 103, an inner layer material 104, and the like.

As shown in FIG. 1, the floor structure 1 in the present embodiment includes a foundation beam 10, a floor receiving beam 20, a floor slab 30, and a floor slab positioning member 40. FIG. 2 is a perspective view showing the floor receiving beam 20, the floor slab 30, and the floor slab positioning member 40 in the floor structure 1. Further, FIG. 3 is a perspective view showing the floor receiving beam 20 in the floor structure 1 independently, and FIGS. 4A, 4B, and 4C are a front view, a plan view, and a left side view, respectively. End view).

The foundation beam 10 of this example can be formed by a rising portion of the foundation. The foundation beam 10 is not limited to the rising portion of the foundation as shown in the illustrated example, and may be formed of, for example, a rising portion of a cloth foundation having a T-shaped cross section, or may have another form. ..

The floor receiving beam 20 can be a long member that is bridged and supported between the foundation beam 10 and the foundation beam 10 facing the foundation beam 10. The floor receiving beam 20 may be placed directly on the top surface 10a of the opposing foundation beam 10, or may be supported by the foundation beam 10 via another member such as a raising member 60 described later. Good. Further, the floor receiving beam 20 can be made of a metal member such as steel, but the material is not particularly limited and may be other than metal. Further, when the floor receiving beam 20 is made of a metal member such as steel, it is desirable that the floor receiving beam 20 is made of a hot-dip galvanized zinc-aluminum-magnesium alloy plated steel sheet having high corrosion resistance, and according to this, corrosion of the member is suppressed. , Durability can be increased.

The floor receiving beam 20 has a main body portion 21 projecting above the height of the upper end of the foundation beam 10 (top surface 10a in this example) and an upper end surface of the floor receiving beam 20 (top surface portion 21a in this example). It has a pair of floor receiving portions 22, 23, which project horizontally at a position lower than 21t).

The floor receiving beam 20 of this example has a hat-shaped cross section (cross section) perpendicular to the longitudinal direction of the floor receiving beam 20. Here, as shown in FIGS. 1 to 4, the “hat type” means a central top plate portion 21a, a pair of side plate portions 21b and 21c extending downward from both ends of the top plate portion 21a, and a pair of side plates. It means a shape having a pair of flange-shaped floor receiving portions 22 and 23 protruding outward from the lower end portions of the portions 21b and 21c, and also includes a shape in which partial unevenness is formed in each portion. The floor receiving beam 20 of this example has a symmetrical end face shape as shown in FIG. 4C, but it does not have to be symmetrical. In the floor receiving beam 20 shown in FIGS. 1 to 4, the top plate portion 21a and the pair of side plate portions 21b and 21c form the main body portion 21. The floor receiving beams 20d, 20f, 20h, 20i, and 20j shown in FIGS. 6 (a), (b), (e), (f), and (g) have a hat-shaped cross-sectional shape. This is an example.

The floor slab 30 has at least one end 30a supported by the floor receiving portions 22 and 23 of the floor receiving beam 20. Both ends 30a and 30b of the floor slab 30 may be supported by the floor receiving portions 22 and 23 of the pair of floor receiving beams 20 facing each other. The floor slab 30 can be, for example, a panel-shaped (rectangular plate-shaped) floor material made of lightweight cellular concrete (ALC) or the like, but the material, shape, and the like are not particularly limited.

In the floor structure 1 shown in FIG. 1, one end 30a of the floor slab 30 is supported by the floor receiving portion 22 of the floor receiving beam 20, and the other end 30b is supported by another floor receiving member 50. The other end 30b of the floor slab 30 may be placed on the top surface 10a of the foundation beam 10. That is, the other end 30b of the floor slab 30 may be directly supported by the foundation beam 10. Further, the other end portion 30b of the floor slab 30 may be supported by the floor receiving portions 22 and 23 of the other floor receiving beams 20.

Here, the floor receiving member 50 has a flat floor receiving portion 51 extending horizontally and a side wall portion 52 rising from one end of the floor receiving portion 51. The end portion 30b of the floor slab 30 is placed on the floor receiving portion 51 of the floor receiving member 50. The floor receiving portion 51 is supported from below by the foundation beam 10 via the raising member 60. The shapes of the floor receiving member 50 and the raising member 60 can be changed as appropriate.

The floor receiving member 50 of this example has the same shape (common member) as the wall receiving member 70 that supports the outer wall material 102, and the members are standardized. As a result, the number of parts can be reduced, so that the manufacturing cost of the parts can be reduced. In this example, the raising member 60 is arranged between the wall receiving member 70 and the foundation beam 10.

The raising member 60 is arranged between the top surface 10a of the foundation beam 10 and the lower surface of the floor receiving portion 51 of the floor receiving member 50, and forms a ventilation passage for ventilation between the foundation beam 10 and the floor receiving member 50. It is preferable that the shape can be formed. In this example, a plurality of raising members 60 having a length shorter than that of the floor receiving member 50 are arranged at intervals in the longitudinal direction of the floor receiving member 50, and the raising members 60 and the raising members 60 adjacent to each other are arranged. The space between them becomes a ventilation path for ventilation. With such a configuration, it is possible to form a continuous ventilation passage in a wide range as compared with the case where a ventilation opening is provided in a part of the foundation. The raising member 60 of this example is made of a metal square pipe member, but the material and shape thereof can be changed as appropriate. When the raised member 60 is made of metal, it has an advantage that it is suitable for long-term use because it has higher durability than the member made of resin.

A positioning member 80 is arranged between the side wall portion 52 of the floor receiving member 50 and the floor slab 30. The positioning member 80 includes a wedge-shaped portion 81 whose tip is thinner (thinner) than that of the base end side, and an engaging portion 82 that engages with the upper end of the side wall portion 52 of the floor receiving member 50. The wedge-shaped portion 81 is inserted from the tip end side between the floor slab 30 and the side wall portion 52 of the adjacent floor receiving member 50, and is arranged so as to widen the distance between the floor slab 30 and the side wall portion 52. The floor slab 30 can be positioned by the positioning member 80 and the floor slab positioning member 40 having such a wedge-shaped portion 81.

The floor slab positioning member 40 is between the floor slab 30 and the adjacent floor slab 30, between the floor slab 30 and the adjacent floor receiving beam 20, or between the wall slab (outer wall material 102) and the floor slab 30. It is a member which is arranged in the floor slab 30 and positions the floor slab 30. The floor slab positioning member 40 can prevent the floor slab 30 from being displaced. The wall siding is not limited to the outer wall material 102 that constitutes the outer wall 101, but also includes, for example, a wall material that constitutes an indoor boundary wall.

The floor slab positioning member 40 has at least one wedge-shaped portion 41. The wedge-shaped portion 41 is thinner (thinner) on the tip side than on the base end side. As shown in FIGS. 1 and 2, the wedge-shaped portion 41 is inserted from the tip side between the floor slab 30 and a member such as the main body portion 21 of the adjacent floor receiving beam 20, and is adjacent to the floor slab 30. It is arranged so as to widen the space between the members. The floor slab positioning member 40 having such a wedge-shaped portion 41 can position the floor slab 30.

The floor slab positioning member 40 can be formed of a material such as a hard foam or rubber, and in this case, the manufacturing cost is low and the floor slab 30 can be suppressed from being damaged during horizontal vibration. The material of the floor slab positioning member 40 is not particularly limited. The floor slab positioning member 40 shown in FIGS. 1 and 2 includes a pair of wedge-shaped portions 41 arranged in parallel with each other at intervals, and a connecting portion 42 connecting the base end portions of the pair of wedge-shaped portions 41. Has been done. As shown in FIG. 1, the connecting portion 42 is supported by the top plate portion 21a of the floor receiving beam 20 in the installed state. The shape of the floor slab positioning member 40 can be changed as appropriate. For example, a single member having a shape like the positioning member 80 shown in FIG. 1 without connecting the pair of wedge-shaped portions 41 by the connecting portion 42. May be. Further, the floor slab positioning member 40 is not an indispensable configuration. For example, the floor slab 30 is attached to the floor by fastening the floor slab 30 and the floor receiving portions 22 and 23 of the floor receiving beam 20 with fasteners such as bolts. It may be fixed to the receiving beam 20.

In the floor structure 1 of the present embodiment, the floor receiving beam 20 has a main body portion 21 that is bridged between a pair of foundation beams 10 that face each other and projects above the height of the upper end of the foundation beam 10. A floor slab 30 supported by floor receiving portions 22 and 23 projecting in the horizontal direction at a position lower than the upper end of the floor receiving beam 20 (top surface 21t of the top plate portion 21a) is provided. With such a configuration, since the underfloor space S is not divided by the floor receiving beam 20, it is possible to secure a sufficient underfloor space S for equipment inspection and piping laying.

Here, it is preferable that the lower end (lower surface 30d) of the floor slab 30 is higher than the upper end (top surface 10a) of the foundation beam 10. With such a configuration, a space (ventilation path) for ventilation can be formed between the floor slab 30 and the foundation beam 10. Further, since the entire floor slab 30 is located above the foundation beam 10, the underfloor space S can be secured wider.

Similarly, it is preferable that the lower end of the floor receiving beam 20 (lower surfaces of the floor receiving portions 22 and 23) is also higher than the upper end of the foundation beam 10 (top surface 10a). That is, since the entire floor receiving beam 20 is located above the foundation beam 10, the underfloor space S can be secured wider.

Further, as in the floor structure 1 of the present embodiment, when the floor receiving beam 20 is supported from below by the foundation beam 10 above the top surface 10a of the foundation beam 10, the floor receiving beam 20 is the foundation beam. The floor receiving beam 20 is less likely to vibrate than when it is held so as to be suspended from the top surface 10a of 10. As a result, it is possible to suppress the generation of noise due to the vibration of the floor receiving beam 20, and it is also possible to eliminate the need for a mechanism or the like for suppressing the vibration of the floor receiving beam 20 and reduce the cost.

Further, in the floor structure 1 of the present embodiment, since the upper end of the floor receiving beam 20 (top surface 21t of the top plate portion 21a) is located below the upper end of the floor slab 30 (top surface 30c), the floor slab is located. It becomes easy to arrange the positioning member 40 so as not to protrude from the floor slab 30. That is, the height of the upper end (top surface 42a) of the connecting portion 42 of the floor slab positioning member 40 is the same as the height of the upper end (top surface 30c) of the floor slab 30 or lower than the height of the upper end of the floor slab 30. It is preferable that they are arranged so as to be. By preventing the floor slab positioning member 40 from protruding above the floor slab 30, it is difficult for the floor slab positioning member 40 to interfere with the floor heat insulating material or the like arranged above the floor slab 30, so that finishing or the like can be facilitated. In this example, the top surface 42a of the connecting portion 42 is configured to be located on the same plane as the top surface 30c of the floor slab 30, which makes it easier to perform the above finishing and the like.

Here, the height from the upper end to the lower end of the floor receiving beam 20 is preferably smaller than the thickness of the floor slab 30. According to this, it becomes easy to secure a wide space S under the floor, and it becomes easy to secure a space for arranging the floor slab positioning member 40.

Further, the floor receiving portions 22 and 23 are preferably provided at the lower end portion of the floor receiving beam 20, and according to this, the floor receiving beam 20 is less likely to protrude significantly below the floor slab 30, so that the underfloor space is provided. It becomes easy to secure S widely.

Further, in the floor structure 1 of the present embodiment, as shown in FIG. 2, the floor receiving beam 20 is arranged between the floor slab 30 and the floor slab 30. As a result, it becomes easy to directly join the pillar to the floor receiving beam 20, and it is not necessary to perform notch processing or the like for passing the pillar through the floor slab 30, so that it is possible to significantly reduce the labor of construction. Further, if the floor receiving beam 20 is provided with a hole, it can be used as a space for equipment wiring and piping penetrating the floor, and since it is not necessary to cut the floor slab 30, the labor of construction can be reduced. ..

Further, since the floor structure 1 of the present embodiment employs a dry construction method in which the floor slab 30 is positioned by using the floor slab positioning member 40, it is compared with a wet construction method in which the floor slab 30 is positioned with mortar. Construction management is easy and the construction period can be shortened. Further, it becomes easy to form a ventilation path between the floor slab 30 and the foundation beam 10.

Further, in the floor structure 1 of the present embodiment, the floor slab 30 is supported by using the floor receiving beam 20, the floor receiving member 50, and the raising member 60 that are independent of the wall receiving member 70 that supports the wall slab such as the outer wall material 102. As a result, the height of the floor slab 30 can be set to a desired height without affecting the height of the wall slab.

Further, in the present embodiment, the floor receiving beam 20 has a shape that can be formed only by bending a single metal plate. With such a configuration, work such as welding or bolt fastening becomes unnecessary in the manufacturing process of the floor receiving beam 20, and the manufacturing cost of the floor receiving beam 20 can be reduced.

5 (a) to 5 (c) and 6 (a) to 6 (g) are end view views of the floor receiving beams 20a to 20j as modified examples of the floor receiving beams 20 shown in FIGS. 1 to 4. The parts having the same basic functions as the floor receiving beam 20 described above are designated by the same reference numerals in the drawings, and the description thereof will be omitted.

The floor receiving beam 20a shown in FIG. 5A has a shape in which the lower flange 21e of the H-shaped steel is extended to both sides. Specifically, the floor receiving beam 20a is connected to the top plate portion 21a (upper flange) extending in the horizontal direction, the web 21d hanging from the center of the top plate portion 21a, and the lower end of the web 21d, and is parallel to the top plate portion 21a. It has a lower flange 21e. Both ends of the lower flange 21e protruding in the horizontal direction from the top plate portion 21a serve as floor receiving portions 22 and 23, respectively.

The floor receiving beam 20b shown in FIG. 5B is a flat plate 24 (a flat rectangular plate-shaped long member) fixed to the lower surface of a main body 21 made of a square pipe member by welding or the like. Specifically, the main body portion 21 composed of the square pipe member includes a central top plate portion 21a, a pair of side plate portions 21b and 21c hanging downward from both ends of the top plate portion 21a, and a pair of side plate portions 21b. , Has a bottom plate portion 21f connecting the lower ends of 21c. Further, both ends of the flat plate 24 fixed to the bottom plate portion 21f serve as floor receiving portions 22 and 23.

The floor receiving beam 20c shown in FIG. 5C is formed by fixing vertical portions of an angle member 25 having an L-shaped cross section to both side surfaces of a main body portion 21 made of a square pipe member by welding or the like. The horizontal portions of the angle members 25 are the floor receiving portions 22 and 23.

The floor receiving beam 20d shown in FIG. 6A is an example of a hat type. The floor receiving beam 20d includes a central top plate portion 21a, a pair of side plate portions 21b and 21c extending diagonally downward from both ends of the top plate portion 21a, and lower ends of each of the pair of side plate portions 21b and 21c. A pair of lower horizontal portions 26a extending outward from the lower horizontal portion 26a, a vertical portion 26b rising vertically from the outer end portion of the lower horizontal portion 26a, and an upper horizontal portion 26c extending horizontally from the upper end portion of the vertical portion 26b toward the outside. Has. A pair of upper horizontal portions 26c form floor receiving portions 22, 23, respectively. The floor receiving portions 22 and 23 can be reinforced by forming the lower horizontal portion 26a and the vertical portion 26b continuous with the floor receiving portions 22 and 23 by bending the metal plate constituting the floor receiving beam 20d or the like. Therefore, the rigidity of the floor receiving beam 20d in the longitudinal direction can be increased.

The floor receiving beam 20e shown in FIG. 6B is an example of a hat type, and has a vertical portion 27a hanging from the outer end portions of the flange-shaped floor receiving portions 22 and 23 and an inner side from the lower end of the vertical portion 27a. It has a horizontal portion 27b extending to. The floor receiving portions 22 and 23 can be reinforced by forming the vertical portion 27a and the horizontal portion 27b continuous with the floor receiving portions 22 and 23 by bending the metal plate constituting the floor receiving beam 20e or the like. The rigidity of the floor receiving beam 20e in the longitudinal direction can be increased.

The floor receiving beam 20f shown in FIG. 6C has the same shape as the floor receiving beam 20a shown in FIG. 5A, and is formed by joining two bent plate members 28a and 28b.

The floor receiving beam 20g shown in FIG. 6 (d) is formed by bending both ends of the top plate portion 21a of the floor receiving beam 20f shown in FIG. 6 (c) downward to form a vertical portion 21 g. As a result, the top plate portion 21a can be reinforced, and the rigidity of the floor receiving beam 20g in the longitudinal direction can be increased.

The floor receiving beam 20h shown in FIG. 6E is an example of a hat type, and a reinforcing rib 21h projecting downward is formed in the center of the top plate portion 21a by bending the top plate portion 21a. As a result, the top plate portion 21a can be reinforced, and the rigidity of the floor receiving beam 20h in the longitudinal direction can be increased.

The floor receiving beam 20i shown in FIG. 6 (f) is an example of a hat type, and is an example of a shape in which a pair of side plate portions 21b and 21c of the floor receiving beam 20h shown in FIG. 6 (e) are slanted.

The floor receiving beam 20j shown in FIG. 6 (g) is an example of a hat type, and is an example of a shape in which the width of the top plate portion 21a of the floor receiving beam 20 shown in FIG. 4 (c) is reduced.

The present invention is not limited to the configuration of the above-described embodiment, and can be realized by various configurations without departing from the contents described in the claims. For example, in the above embodiment, the floor structure 1 of the first floor of the building 100 has been described, but the present invention is not limited to this, and by using a beam (framework) that supports the floor of the second floor or higher as the foundation beam, the second floor or higher It can also be used on the floor.

1: Floor structure 10: Foundation beam 10a: Top surface of foundation beam (upper end of foundation beam)
20: Floor receiving beam 21: Main body 21a: Top plate 21b, 21c: Side plate 21d: Web 21e: Lower flange 21f: Bottom plate 21g: Vertical 21h: Reinforcing rib 21t: Top surface of top plate (floor) Upper end of receiving beam)
22, 23: Floor receiving part 24: Flat plate 25: Angle material 26a: Lower horizontal part 26b: Vertical part 27a: Vertical part 27b: Horizontal part 28a, 28b: Plate member 30: Floor slab 30a, 30b: Edge of floor slab Part 30c: Top surface of floor slab (upper end of floor slab)
30d: Lower surface of floor slab (lower end of floor slab)
40: Floor siding positioning member 41: Wedge-shaped portion 42: Connecting portion 42a: Upper end of connecting portion 50: Floor receiving member 51: Floor receiving portion 52: Side wall portion 60: Raising member 70: Wall receiving member 80: Positioning member 81: Wedge-shaped Part 82: Engaging part 100: Building 101: Outer wall 102: Outer wall material (wall siding)
103: Insulation material 104: Inner layer material S: Underfloor space

Claims (9)

With foundation beams, floor beams, and floor slabs,
The floor receiving beam is supported by being bridged between the foundation beam and the foundation beam facing the foundation beam, and at least one end of the floor slab is supported by the floor receiving beam. There,
The floor receiving beam has a main body portion that protrudes above the height of the upper end of the foundation beam, and a floor receiving portion that projects horizontally at a position lower than the upper end of the floor receiving beam.
A floor structure characterized in that at least one end of the floor slab is supported by the floor receiving portion. The floor structure according to claim 1, wherein the floor receiving beam has a cross-sectional shape of a hat type. The floor structure further has a floor slab positioning member.
The floor structure according to claim 1 or 2, wherein the floor slab positioning member has a wedge-shaped portion arranged between the floor slab and an adjacent floor receiving beam or between the floor slab and the wall slab. The floor structure according to any one of claims 1 to 3, wherein the lower end of the floor slab is located higher than the upper end of the foundation beam. The upper end of the floor receiving beam is located below the upper end of the floor slab,
The floor slab positioning member has a connecting portion that connects a pair of wedge-shaped portions arranged at intervals, and the height of the upper end of the connecting portion is the same as the height of the upper end of the floor slab, or the above. The floor structure according to claim 3, wherein the floor structure is arranged so as to be lower than the height of the upper end of the floor slab. The floor structure according to claim 4, wherein a floor receiving member that supports the floor slab and a raising member that supports the floor receiving member are arranged between the floor slab and the foundation beam. The floor structure according to claim 4, wherein the floor receiving member that supports the floor slab and the wall receiving member that supports the wall slab are common members. A building having the floor structure according to any one of claims 1 to 7. The beam as a floor receiving beam according to claim 1.
A beam characterized by having a hat-shaped cross section.

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