JP2024008484A - Floor base structure for support pillar receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor base structure for supporting a support pillar that can firmly attach a pillar support member to an edge of a floor section brought out toward the atrium space against a transverse frame without incurring high costs.

SOLUTION: This floor base structure for supporting a support pillar comprises: a floor support member 31 fixed to a transverse frame 3 and brought out toward an atrium space 200; a support member 4 located below each pillar support section 2 and fixed to the floor support member 31; an ALC floor slab 6, which is a floor base plate provided on a non-atrium side from the transverse frame 3 and fixed to the transverse frame 3; an intermediate floor base section 61 provided between the support member 4 and the ALC floor slab 6; and a floor base plate member 11 that extends from on the support member 4 over the intermediate floor base section 61 to on the edge of the ALC floor slab 6, and is screwed to the support member 4 and the ALC floor slab 6. And the pillar support member 2 is fixed to the support member 4 by a screw 401 that passes through the floor base plate member 11.

SELECTED DRAWING: Figure 2

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention relates to a column receiving floor substructure structure in which a column receiving material is fastened to the edge of a raised floor portion that is carried out toward an atrium space with respect to a horizontal frame.

Patent Document 1 discloses a column receiving floor substructure structure. This post-receiving floor substructure is a post-receiving sub-floor structure in which a post-receiving material for receiving a post is fastened to the edge of the floor, and a steel horizontal member provided on the lower side of the floor. A support member for supporting an edge of the floor material in the floor portion is provided on the top, the support member is fastened to the edge side of the floor material, and the support member is It has a structure that can transmit the vertical load applied to the edge of the upper surface to the lower surface.

JP2017-179988A

However, the column receiving floor base structure of Patent Document 1 is not a structure in which the column receiving material is fastened to the edge of the floor portion that is brought out to the atrium space side with respect to the horizontal frame.

By the way, in a structure in which a post support material is fastened to the edge of a raised floor, for example, in a structure that uses a standard base slab such as a panel, there is a wall on the lifted floor side that is larger than the standard base slab. It is conceivable to arrange a small block-shaped member and fasten the above-mentioned support post support material to this block-shaped member. However, in this case, there is a possibility that the above-mentioned support column receiving member cannot be firmly fixed.

On the other hand, it is also conceivable to use a subfloor slab having a special length that reaches the above-mentioned take-out floor section. However, if a subfloor slab having such a special length is separately ordered, manufacturing costs may become relatively high.

This invention provides a support floor substructure that allows support support materials to be firmly fastened to the edge of a raised floor portion that is brought out to the atrium space side with respect to a horizontal frame frame without increasing costs. The challenge is to provide.

The column receiving floor substructure structure of the present invention is a column receiving floor substructure structure in which a column receiving material is fastened to the edge of a raised floor portion that is brought out to the atrium space side with respect to a horizontal frame,
a floor support material fixed to the horizontal frame and carried out to the atrium space;
a support member located below each column receiver and fixed to the floor support material;
A subfloor slab provided on the non-opening side of the horizontal frame and fixed to the horizontal frame;
an intermediate subfloor section provided between the support member and the subbase slab;
A subfloor material extending from above the support member, across the intermediate subfloor portion, and reaching onto the edge of the subfloor slab, and fixed to the support member and the subfloor slab with screws,
The above-mentioned pillar receiving material is fixed to the above-mentioned support member by a screw passing through the floor sub-surface material.

With the above configuration, the subfloor material is positioned so as to cross over the support member, over the intermediate subfloor portion, and reach the edge of the subfloor slab, and the subfloor material is located between the support member and the subfloor. It is fixed to the floor slab with screws. As a result, the lateral load applied to the pillar support material is received by the base slab side, not by the intermediate base floor section. Since this subfloor slab is fixed to the horizontal frame, the resistance against the collapse of the support column support material is improved. Further, since there is no need to use a subfloor slab having a special length that extends to the above-mentioned take-out floor portion, high costs can also be suppressed.

An atrium edge member that fills the space between the support members may be disposed on the floor support material in close proximity to the support members. According to this, it is possible to eliminate the work and effort of inserting a fireproof material between the support member and the atrium side member.

The base slab and the intermediate base floor may be made of concrete. According to this, it is possible to improve the fire resistance of the floor of the atrium space to which the support column receiving material is fastened.

The height of the atrium edge member may be lower than the base floor slab and the intermediate base floor portion, and a concrete member having a thickness equal to this height difference may be fixed on the atrium edge member. According to this, it is possible to improve the fire resistance of the floor section next to the atrium space to which the column receiving material is fastened.

Alternatively, the base slab may be made of a steel joist floor slab. In this way, even if the base slab is a steel joist floor slab, the lateral load applied to the column receiving material is received by the steel joist floor slab, not the intermediate base floor. Since this steel joist floor slab is fixed to the horizontal frame, the resistance against the collapse of the above-mentioned column support material is improved.

The height of the atrium edge member is lower than the base floor slab (steel joist floor slab) and the intermediate base floor, and a wooden member having a thickness equal to this height difference is fixed on the atrium edge member. Good too. According to this, in a structure in which the base floor slab is made of a steel joist floor slab, it is possible to optimize the fire resistance of the floor portion of the atrium space to which the column receiving material is fastened.

According to the present invention, it is possible to securely fasten the column support material to the edge of the raised floor portion that is brought out to the atrium space side with respect to the horizontal frame frame, without increasing the cost. play.

FIG. 2 is a schematic vertical cross-sectional view taken along a vertical plane parallel to the extending direction of the handrail, showing the support column support flooring structure of the embodiment. FIG. 2 is a schematic vertical cross-sectional view taken along a vertical plane perpendicular to the extending direction of the handrail, showing the support column base floor structure of the embodiment. FIG. 2 is a schematic plan view showing a support column receiving floor structure according to an embodiment. It is a figure which showed the support floor base structure of other embodiments, Comprising: It is a schematic longitudinal cross-sectional view cut along the vertical plane parallel to the extending direction of the handrail. It is a figure which showed the support floor base structure of other embodiments, Comprising: It is a schematic longitudinal cross-sectional view cut along the vertical plane orthogonal to the extending direction of the handrail. FIG. 7 is a schematic plan view illustrating a post-receiving subfloor structure according to another embodiment.

(Embodiment 1)
Embodiments of the present invention will be described below based on the accompanying drawings. As shown in FIGS. 1 and 2, the support floor base structure of the embodiment is a floor portion 1 of an upper floor surrounding an atrium space 200, and has a support base structure for a horizontal frame (beams, girder differences, etc.) 3. It has a structure in which the support column receiving material 2 is fastened to the edge of the floor part 100 that is brought out to the atrium space 200 side.

The lower portion of the handrail support 25 is fixed to the support support 2 with bolts or the like. Further, as shown in FIG. 3, this support post member 2 has a structure in which a metal support plate 22 is fixed on a substantially square metal base 21. An insertion hole is formed in the metal base 21, and a countersunk tapping screw 201 can be inserted into the insertion hole from above.

The horizontal frame 3 is made of, for example, H-beam steel and is located below the floor 1. An ALC (lightweight aerated concrete) floor slab 6 serving as a base floor slab is provided in a floor area on the non-open-air side of the widthwise center of the horizontal frame 3. This ALC floor slab 6 has a through hole formed in the vertical direction, and each ALC floor slab 6 is attached to the non-opening side edge of the upper flange of the horizontal frame 3 by means of the fixing metal fittings 5 passed through the through hole. Fixed.

The takeout floor section 100 includes a floor support material 31 and a support member 4.

The floor support material 31 is fixed to the horizontal frame 3 and brought out to the atrium space 200 side. For example, the floor support material 31 has a substantially hook shape consisting of a short first metal fitting 31a bolted to the web of the horizontal frame 3, a vertical plate part and a horizontal plate part, and the vertical plate part is the first metal part 31a. The first metal fitting 31a is welded and fixed to the second metal fitting 31b, which is a long piece. Rib plates are welded and fixed to the second hardware 31b at predetermined intervals.

The support member 4 is disposed below the location where the post support member 2 is attached, and is bolted onto the horizontal plate portion of the second hardware 31b of the floor support member 31. Further, the support member 4 has a height such that the upper end of the support member 4 is flush with the upper end of the ALC floor slab 6, and has a width of about several tens of cm. The support member 4 is, for example, a steel member in which a top plate, a bottom plate, left and right side plates, and an intermediate plate provided between these left and right side plates are joined to each other by welding. . Further, the left and right side plate portions and the intermediate plate portion of the support member 4 are spaced apart from the atrium wall base 200A toward the bottom.

A steel atrium member 41 is arranged between the support members 4 to fill the space between the support members 4 . The atrium edge member 41 is disposed close to the support member 4, and is bolted onto the horizontal plate portion of the second hardware 31b. In addition, the height of the atrium end member 41 is lower than the support member 4, and a block ALC (lightweight cellular concrete) 42 having a height corresponding to this height difference is fixed to the upper surface of the atrium end member 41 by countersunk flexible reamed screws 42a. has been done.

Between the supporting member 4 and the ALC floor slab 6 and between the atrium edge member 41 and the ALC floor slab 6, a plurality of intermediate subfloor parts 61 having a predetermined length are arranged. The intermediate base floor portion 61 is made of block-shaped ALC (lightweight cellular concrete) and has a height comparable to that of the ALC floor slab 6. Further, the intermediate subfloor portion 61 has a width extending from approximately the center position in the width direction of the upper flange of the horizontal frame 3 to approximately the middle portion of the horizontal plate portion of the second hardware 31b.

Starting from the upper end side of the atrium wall base 200A, the floor subfloor material 11 is arranged so as to straddle the upper surface of the support member 4 and the upper surface of the intermediate base floor part 61, and reach the edge of the atrium side of the ALC floor slab 6. There is. That is, the floor subfloor material 11 has a width that extends from above the support member 4, across the intermediate subfloor portion 61, and onto the edge of the ALC floor slab 6, which is the subfloor slab. The floor subfloor material 11 is fixed to the ALC floor slab 6 on the edge of the ALC floor slab 6 with countersunk screws 601, and on the support member 4, the upper plate of the support member 4 is fixed with countersunk flexible reamer screws. 401 is fixed. Further, the floor underfloor material 11 is also fixed to the atrium edge member 41 with screws.

Furthermore, a stile plate 12 is arranged on the upper surface of the floor underfloor material 11 on the open-air side. This frame plate 12 is fixed to the upper plate of the support member 4 by countersunk flexible reamed screws 402 that pass through the frame plate 12 and the floor subfloor material 11.

The post support member 2 is installed on the frame board 12. A countersunk tapping screw 201 is inserted into the insertion hole of the metal base 21 of the post support member 2 from above. The countersunk tapping screw 201 penetrates the frame board 12 and the floor subfloor material 11 and is screwed into the upper plate of the support member 4. That is, the support column receiving member 2 is fastened to the edge of the take-out floor section 100 with countersunk tapping screws 201.

With the above configuration, the subfloor material 11 is located from above the support member 4 across the intermediate subfloor portion 61 to reach the edge of the ALC floor slab 6, which is the subfloor slab, and The material 11 is fixed to the support member 4 and the ALC floor slab 6 with screws 401 and 601. As a result, the lateral load applied to the column support member 2 is received not by the intermediate subfloor portion 61 but by the ALC floor slab 6 side. Since this ALC floor slab 6 is fixed to the horizontal frame 3, the resistance against the collapse of the support column 2 is improved.

When the atrium edge member 41 is arranged close to the support member 4, it is possible to eliminate the work and effort of inserting a fireproof material between the support member 4 and the atrium edge member 41. In this embodiment, the lateral edge of the bottom plate of the support member 4 contacts the lower part of the side plate of the atrium edge member 41, and there is a predetermined gap between the side plate of the support member 4 and the side plate of the atrium edge member 41. Although a gap of the same size is formed, the present invention is not limited to this, and an embodiment in which no gap is formed at all between the side plate of the support member 4 and the side plate of the blow-through member 41 is also possible.

By using the ALC floor slab 6 and the intermediate base floor section 61 made of lightweight cellular concrete, it is possible to improve the fire resistance of the floor section 100 of the atrium space 200 to which the column receiving material 2 is fastened. Note that the floorboards and the intermediate subfloor are not limited to ALC (lightweight cellular concrete), but may be made of other concrete materials.

When the height of the atrium end member 41 is lower than the ALC floor slab 6 and the intermediate base floor part 61, and the block ALC 42 having a thickness corresponding to this height difference is fixed on the atrium end member 41, the column receiving material 2 The fire resistance of the floor portion 100 of the atrium space 200 to which it is fastened can be improved.

(Embodiment 2)
Other embodiments will be described below based on the accompanying drawings. Note that members similar to those shown in Embodiment 1 are denoted by the same reference numerals and their descriptions will be omitted.

As shown in FIG. 4, FIG. 5, and FIG. ) 3, the pillar receiving material 2 is fastened to the edge of the raised floor part 100 that is brought out to the side of the atrium space 200.

This column receiving floor base structure has a steel joist floor slab 7 that serves as a base floor slab. This steel joist floor slab 7 consists of a plurality of steel joists 7a spanning between the horizontal frame bodies 3, and a floor plate 7b supported by these steel joists 7a. The floorboard 7b is made of, for example, particle board.

A plurality of intermediate base floor parts 71 are arranged between the support member 4 and the steel joist floor slab 7 and between the atrium edge member 41 and the steel joist floor slab 7. The intermediate subfloor portion 71 has a height comparable to that of the steel joist floor slab 7. Further, the intermediate base floor section 71 includes a board section 71a made of particle board or the like similar to the floor board 7b, and two horizontal crosspieces 71b that support this board section 71a. One of the horizontal crosspieces 71b is located on the upper flange of the horizontal frame 3, and the other one is located on the horizontal plate portion of the second hardware 31b.

The subfloor material 11 has a width that extends from above the support member 4, across the intermediate subfloor portion 71, and onto the edge of the steel joist floor slab 7, which is the subfloor slab. The floor subfloor material 11 is fixed to the floor slab 7b on the edge of the steel joist floor slab 7 by countersunk flexible spoon screws 701, and on the support member 4 by countersunk flexible reamer screws 401. Fixed to the top plate.

The height of the atrium edge member 41 is lower than the steel joist floor slab 7 and the intermediate subfloor part 71, and a wooden member 42A having a thickness corresponding to this height difference is fixed onto the atrium edge member 41 with countersunk flexible reamed screws 42a. ing.

In this way, even if the base slab is composed of the steel joist floor slab 7, the lateral load applied to the column support material 2 is applied not to the intermediate base floor 71 but to the steel joist floor slab 7 side. I can accept it. Since this steel joist floor slab 7 is fixed to the horizontal frame 3, the resistance against the collapse of the support column 2 is improved.

If the height of the atrium edge member 41 is lower than the steel joist floor slab 7 and the intermediate subfloor part 71, and the wooden member 42A having a thickness equal to this height difference is fixed on the atrium edge member 41, the subfloor In the structure where the plate is made of steel joist floor slab 7, it is possible to optimize the fire resistance of the raised floor part 100 of the atrium space 200 to which the column receiving material 2 is fastened.

Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to the illustrated embodiments. Various modifications and variations can be made to the illustrated embodiment within the same scope or equivalent scope of the present invention.

1 : Floor part 2 : Post support material 3 : Horizontal frame 4 : Support member 5 : Fixing metal fittings 6 : ALC floor slab 7 : Steel joist floor slab 7a : Steel joist 7b : Floor board 11 : Subfloor material 12 : Frame Plate 21: Metal base 22: Metal support plate 25: Handrail post 31: Floor support material 31a: First hardware 31b: Second hardware 41: Atrium edge member 42: Block ALC
42A: Wooden member 42a: Countersunk flexible reamer screw 61: Intermediate base floor section 71: Intermediate base floor section 71a: Board section 71b: Horizontal crosspiece 100: Extruded floor section 200: Atrium space 200A: Atrium wall base 201: Countersunk tapping screw 401 : Countersunk flexible reamed screw 402 : Countersunk flexible reamed screw 601 : Countersunk screw screw 701 : Countersunk flexible spoon screw

Claims (6)

A column receiving floor base structure in which a column receiving material is fastened to the edge of a raised floor portion that is brought out to the atrium space side with respect to a horizontal frame frame,
a floor support material fixed to the horizontal frame and carried out to the atrium space;
a support member located below each column receiver and fixed to the floor support material;
A subfloor slab provided on the non-opening side of the horizontal frame and fixed to the horizontal frame;
an intermediate subfloor section provided between the support member and the subbase slab;
A subfloor material extending from above the support member, across the intermediate subfloor portion, and reaching onto the edge of the subfloor slab, and fixed to the support member and the subfloor slab with screws,
A column receiving floor substructure, characterized in that the column receiving material is fixed to the supporting member by screws passing through the floor subfloor material. The support floor base structure according to claim 1, wherein on the floor support material, an atrium edge member that fills the space between the support members is arranged close to the support members. Supporting column base structure. 3. The support column support floor base structure according to claim 2, wherein the base slab and the intermediate base floor portion are made of concrete. In the support floor base structure according to claim 3, the height of the atrium edge member is lower than the base slab and the intermediate base floor part, and a concrete member having a thickness corresponding to this height difference is attached to the atrium edge member. A support floor base structure characterized by being fixed on a member. 3. The support column support floor substructure according to claim 2, wherein the sub-base slab is made of a steel joist floor slab. In the support floor base structure according to claim 5, the height of the atrium edge member is lower than the base floor slab and the intermediate base floor portion, and the wooden member having a thickness corresponding to this height difference is the height of the atrium edge member. A column-receiving floor base structure characterized by being fixed on top.

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