JP2003184183A - Building structure and method for increasing floor area of building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To rationally ensure the structural strength of a building. <P>SOLUTION: There is provided a structure of the building 20 formed of columns 21 and beams 23. Each beam 23 has upper and lower flanges 23A which each have a flange width smaller than the diameter of the column 21. The beam 23 has a reinforcing member 41 attached to a side surface thereof, and a width dimension thereof is extended. Further, the surface of the reinforcing member 41 on the side opposite to the beam 23 is almost flush with a surface of the column 21 facing in the same direction. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a structure of a building and a method for increasing the floor space of the building.

[0002]

2. Description of the Related Art Conventionally, as a structure of a building having a stairwell, there is a structure described in Japanese Examined Patent Publication No. 6-4976 and Japanese Patent No. 2577852.
Further, Japanese Patent No. 2577852 also discloses a method of adding a floor to the stairwell.

[0003]

[Problems to be Solved by the Invention] In Japanese Patent Publication No. 6-4976,
When the frontage of the atrium becomes large, reinforcement beams are laid across the atrium to reinforce the building, which impairs the openness of the atrium.

According to Japanese Patent No. 2578852, when a floor is added to the stairwell, the angle frame of the floor panel is placed and locked on the beam which is the structural frame of the building, and the cross-sectional strength of the beam of the building may be insufficient. There is.

According to Japanese Examined Patent Publication No. 6-4976 and Japanese Patent No. 2579852, the structural strength of the portion forming the stairwell of the building unit is weak,
Building units may be deformed during transportation.

According to Japanese Examined Patent Publication No. 6-4976 and Japanese Patent No. 2578852, when a waist wall is provided on the upper floor along the atrium, it is necessary to attach a waist wall support to the beam which is the structural frame of the building, and the cross-sectional strength of the beam of the building is There is a risk of shortage.

An object of the present invention is to rationally secure the structural strength of a building. Another object of the present invention is to add a floor to the stairwell while rationally ensuring the structural strength of the building.

Another object of the present invention is to prevent deformation of a building unit during transportation. Another object of the present invention is to
The reason for this is to provide columns along the stairwell while reasonably ensuring the structural strength of the building.

[0009]

The invention of claim 1 is a structure of a building comprising columns and beams, which is made smaller, and at least a part of the beams is provided with a reinforcing material on the side surface to have a width dimension. It is made larger so that the surface of the reinforcing member on the side opposite to the beam is substantially flush with the surface of the column facing the same direction.

A second aspect of the present invention is the structure of the building according to the first aspect, wherein the reinforcing material is added to the beam facing the stairwell.

According to a third aspect of the present invention, when the building structure according to the first aspect is adopted as a building unit, a temporary beam for preventing deformation of the building unit during transportation can be attached to and detached from the reinforcing member. It is the one.

According to a fourth aspect of the present invention, there is provided the structure of the building according to the first aspect, wherein the floor to be added to the stairwell is supported by the reinforcing material.

A fifth aspect of the present invention is the structure of the building according to the first aspect, in which a pillar is attached to the reinforcing material.

A sixth aspect of the present invention is the structure of the building according to any one of the first to fifth aspects, wherein the reinforcing material is a profile having upper and lower flanges, and each of the upper and lower flanges is a beam. The upper and lower flanges are joined together.

A seventh aspect of the present invention is the structure of the building according to any one of the first to sixth aspects, wherein the upper floor building unit is loaded on the lower floor building unit, and the lower floor building unit. The above reinforcing material is added to the upper beam of the upper beam or the lower beam of the upper floor building unit.

According to the invention of claim 8, a reinforcing material is added to the beam facing the stairwell of the building, and when a floor is added to the stairwell, the floor is joined to the beam through the reinforcing material. It is the method of increasing floor space.

A ninth aspect of the present invention is the method for increasing floor space of a building according to the eighth aspect, wherein the reinforcing material is a profile having upper and lower flanges and a web that is a vertical surface. The end portion of the supporting beam is abutted and fixed to this web.

The invention of claim 10 is the method for increasing the floor space of a building according to claim 8 or 9, characterized in that
The upper-floor building unit is loaded, and the reinforcing member is added to the upper beam of the lower-floor building unit or the lower beam of the upper-floor building unit.

[0019]

According to the invention of claim 1, there is the following function (1). (1) When adopting a general layout module in which the inner wall is set flush with the indoor side surface of the column, the beam flange width is made smaller than the column diameter to minimize the beam cross section while You can reinforce the building by adding reinforcements to the sides of the to increase its width. At this time, by arranging the surface of the reinforcing material on the side opposite to the beam on the same surface as the pillar, the cross section of the reinforcing material is set to the maximum cross section that does not interfere with the inner wall, and the structural strength of the building is rationalized Can be secured.

According to the invention of claim 2, there is the following effect (2). (2) A reinforcing material is added to the side surface of the beam facing the stairwell to increase its width, and the cross-sectional strength of the beam facing the stairwell is increased to reinforce the building and form a large stairwell. Further, the beam can be a common component regardless of whether or not there is a blow through.

According to the invention of claim 3, there is the following effect (3). (3) A reinforcement is added to the beam such as facing the through-hole of the building unit, and a temporary beam for preventing deformation during transportation is attached to or detached from the reinforcement. Therefore, the temporary beam can be supported by the beam reinforced by the reinforcing material. This can prevent deformation of the building unit during transportation.

According to the invention of claim 4, there is the following effect (4). (4) Add reinforcements to the beams such as facing the stairwell of the building,
The floor to be added will be supported by reinforcements. Therefore, the floor can be supported by the beam reinforced by the reinforcing material. As a result, it is possible to increase the number of floors along the stairwell while reasonably ensuring the structural strength of the building.

According to the invention of claim 5, there is the following effect (5). (5) Add a reinforcing material to the beam such as facing the stairwell of the building,
Attach the columns such as the waist wall to the reinforcing material. Therefore, the column can be supported by the beam reinforced by the reinforcing material. Thereby, the pillars can be provided along the stairwell while rationally ensuring the structural strength of the building.

According to the invention of claim 6, there is the following effect (6). (6) By joining the upper and lower flanges of the shape member constituting the reinforcing member to the upper and lower flanges of the beam by welding or the like, the reinforcing member can be easily and surely added to the side surface of the beam.

According to the invention of claim 7, there is the following effect (7). (7) The structural strength of the unit building can be reasonably secured by adding a reinforcing material to the upper beam of the lower floor building unit or the lower beam of the upper floor building unit. A large stairwell can be formed.

According to the invention of claim 8, there is the following effect (8). (8) By adding a reinforcing material to the beam facing the stairwell of the building and joining the floor to be added to the beam via the reinforcing material, the floor can be supported by the beam reinforced by the reinforcing material. Therefore, the floor can be added to the stairwell while rationally ensuring the structural strength of the building.

According to the invention of claim 9, there is the following effect (9). (9) The beam can be simply and surely fixed by abutting and fixing the end portion of the beam which supports the floor to be added to the web of the shape member that constitutes the reinforcing member.

According to the invention of claim 10, there is the following effect (10). (10) By adding a reinforcing material to the upper beam of the lower-floor building unit or the lower beam of the upper-floor building unit, a floor can be added to the stairwell while rationally ensuring the structural strength of the building.

[0029]

1 is a perspective view showing a unit building, FIG. 2 is a sectional view taken along line II-II of FIG. 1, FIG. 3 shows a structure of the unit building, and FIG. (B) is an enlarged view of a main part, FIG. 4 is a plan view showing an upper beam of a lower floor building unit, FIG. 5 is a V part of FIG. 4, (A) is a front view, (B)
Is an end view, FIG. 6 shows a VI portion of FIG. 4, (A) is a front view,
(B) is an end view, FIG. 7 is a plan view showing a lower beam of an upper floor building unit, FIG. 8 is a part VIII of FIG. 7, (A) is a front view,
(B) is an end view, FIG. 9 shows the IX part of FIG. 7, (A) is a front view, (B) is an end view, FIG. 10 shows the floor expansion method of a unit building, and (A) is an overall perspective view. Figure, (B) is an enlarged view of the main part,
FIG. 11 is a plan view showing a lower beam of an upper floor building unit with an increased floor space, FIG. 12 shows an XII portion of FIG. 11, (A) is a front view,
(B) is an end view, FIG. 13 is a cross-sectional view showing a waist wall mounting structure of a unit building, FIG. 14 is a perspective view showing a waist wall mounting process of a unit building, FIG. 15 is a pillar, and (A) is a rear view. ,
(B) is a sectional view taken along the line BB.

(A) Structure of the unit building 10 (FIGS. 1 to 9) In the unit building 10 of FIG. 1, a plurality of lower floor building units 20 are installed on the foundation 1, and each lower floor building unit 20 is installed. It is constructed by loading the upper floor building unit 30.

As shown in FIGS. 2 and 3, the lower-floor building unit 20 includes four square steel pipe columns 21 and four shaped steel lower beams 22.
And a frame structure in which four shaped steel upper beams 23 are joined in a box shape. As shown in FIGS. 2 and 3, the upper-floor building unit 30 includes four square steel pipe columns 31 and four shaped steel lower beams 32 and 4.
It is a frame structure in which a box-shaped upper beam 33 of a book is joined in a box shape.

In the lower-floor building unit 20, the lower beam 22 and the upper beam 23 are joined to the joint pieces 24 provided above and below the pillar 21, respectively, and the lower beam 22 supports the lower floor 25 and the upper beam 23. Supports a lower ceiling 26 (not shown). In addition, the lower-floor building unit 20 has an outer wall 27 on the outdoor side surface of the pillar 21.
Of the lower beam 22 and the upper beam 23 by adopting a layout module in which the inner beam 28 is set flush with the indoor side surface of the pillar 21, and the lower beam 22 and the upper beam 23 are C-shaped steel. Upper and lower flanges 22A and 23A are provided on each of them, and the width of the flanges is made smaller than the diameter of the column 21.

In the upper-floor building unit 30, the lower beam 32 and the upper beam 33 are joined to the joint pieces 34 provided above and below the pillar 31, and the lower beam 32 supports the upper floor 35 and the upper beam 33. Supports an upper ceiling 36 (not shown). The upper-floor building unit 30 has an outer wall 37 on the surface of the pillar 31 on the outdoor side.
Of the lower beam 32 and the upper beam 33 by adopting an allocation module in which the inner wall 38 is set flush with the indoor side surface of the pillar 31, and the lower beam 32 and the upper beam 33 are C-shaped steel. Upper and lower flanges 32A and 33A are provided on each of them, and the width of the flanges is made smaller than the diameter of the column 31.

In the unit building 10, the lower beam ceiling 26 is not provided on the upper beam 23 of the lower floor building unit 20 between the pair of lower floor building unit 20 and the upper floor building unit 30. The lower floor 32 is not provided with the upper floor 35, the stairwell 11 is formed, and the staircase 12 is provided in the stairwell 11.

In the lower-floor building unit 20 forming the through-hole 11, as shown in FIGS.
4 upper beams 23 (or 2 opposite upper beams 2 facing each other)
The reinforcing material 41 is added to 3). The reinforcing member 41 is made of C-shaped steel having upper and lower flanges 41A, and the upper and lower flanges 41A are fitted inside the upper and lower flanges 23A of the upper beam 23 and joined by welding. The upper beam 23 is the reinforcement member 4
The width dimension is increased by the addition of 1, and the surface of the reinforcing member 41 opposite to the upper beam 23 (indoor side) is set substantially flush with the surface of the column 21 facing in the same direction ( (Fig. 2).

The reinforcing member 41 is provided with a back nut 42 (not shown) for attaching a beam for increasing the floor, which will be described later, welded to the back surface of the web 41B, and a small window 43 for manual work (FIG. 5). . Further, the reinforcing member 41 is configured such that the end plate 45 of the temporary beam 44 for preventing the deformation of the lower-floor building unit 20 during transportation can be attached and detached by the bolt 46 (FIG. 6).

In the upper floor building unit 30 forming the stairwell 11, as shown in FIGS. 7 to 9, the stairwell 11 is used.
4 lower beams 32 (or 2 opposite lower beams 3 facing each other)
The reinforcing material 51 is added to 2). The reinforcing member 51 is made of C-shaped steel having upper and lower flanges 51A, and the upper and lower flanges 51A are fitted inside the upper and lower flanges 32A of the lower beam 32 and joined by welding. The lower beam 32 is the reinforcement member 5
The width dimension is increased by adding 1, and the surface of the reinforcing member 51 on the side opposite to the lower beam 32 (inside the indoor side) is set substantially flush with the surface of the column 21 facing in the same direction as this (( (Fig. 2).

The reinforcing member 51 is provided with a back nut 52 for attaching a beam for increasing the floor, which will be described later, welded to the back surface of the web 51B and a small window 53 for manual work (FIG. 8). Further, the reinforcing member 51 is configured such that the end plate 55 of the temporary beam 54 for preventing the deformation of the upper floor building unit 30 during transportation can be attached and detached by the bolt 56 (FIG. 9).

Therefore, the structure of the unit building 10 has the following effects. When adopting a general allocation module in which the inner walls 28, 38 are set flush with the indoor side surfaces of the columns 21, 31, the flange width of the beams 23, 32 is made smaller than the diameter of the columns 21, 31. , 32 while minimizing the cross section of the beam 2
It is possible to reinforce the unit building 10 by adding reinforcing members 41 and 51 to the side surfaces of 3 and 32 to increase the width dimension thereof. At this time, by arranging the surfaces of the reinforcing members 41 and 51 opposite to the beams 23 and 32 on the same surface as the columns 21 and 31, the reinforcing member 4
By setting the cross section of 1, 51 to the maximum cross section that does not interfere with the inner walls 28, 38, the structural strength of the unit building 10 can be reasonably secured.

The reinforcing members 41 and 51 are added to the side surfaces of the beams 23 and 32 facing the stairwell 11 to increase the width dimension thereof, and the cross-sectional strength of the beams 23 and 32 facing the stairwell 11 is increased to increase the cross-sectional strength of the unit building 10. Can be reinforced and a large blow-through 11 can be formed. Further, the beams 23 and 32 can be a common component regardless of the presence or absence of the blow-through 11.

Reinforcing members 41 and 51 are added to the beams 23 and 32 facing the stairwell 11 of the unit building 10, and temporary beams 44 and 54 for preventing deformation during transportation are attached to and detached from the reinforcing members 41 and 51. Therefore, the beam 2 reinforced by the reinforcing members 41 and 51
The temporary beams 44, 54 can be supported by 3, 32. This allows
It is possible to prevent deformation of the building units 20, 30 during transportation.

The upper and lower flanges 41A and 51A of the shape members constituting the reinforcing members 41 and 51 are joined to the upper and lower flanges 23A and 32A of the beams 23 and 32 by welding or the like, so that the reinforcing members 41 and 51 are connected to the beam 23. , 32 can be easily and surely added to the side surfaces.

By adding the reinforcing members 41 and 51 to the upper beam 23 of the lower floor building unit 20 or the lower beam 32 of the upper floor building unit 30, the structural strength of the unit building 10 can be reasonably ensured. A large void 11 can also be formed.

(B) Method for increasing the floor space of the unit building 10 (Fig. 10)
(FIG. 12) When adding the floor 60 to the stairwell 11 of the unit building 10, as shown in FIGS. 10-11, the beam 61 which supports the floor 60 is attached to the lower beam 32 of the upper floor building unit 30 as described above. It is joined to the lower beam 32 via the reinforcing member 51 added as described above. The beam 61 of the floor 60 may be joined to the upper beam 23 via the reinforcing member 41 added to the upper beam 23 of the lower floor building unit 20.

At this time, the reinforcing member 51 is made of C-shaped steel as described above, has the web 51B forming a vertical surface with the upper and lower flanges 51A, and the end plate provided at the end portion of the beam 61 of the floor 60. 62 with the web 51B, and the bolt 6
3 is fixed to the back nut 52 by screwing (FIG. 12).

Therefore, the above-described method for increasing the floor space of the unit building 10 has the following effects. By adding the reinforcing member 51 to the beam 32 facing the stairwell 11 of the unit building 10 and joining the floor 60 to be added to the beam 32 via the reinforcing member 51, the floor 32 can be attached to the beam 32 reinforced by the reinforcing member 51. Can support. Therefore, the floor 60 can be added to the stairwell 11 while rationally securing the structural strength of the unit building 10.

The web 51 of the shape member that constitutes the reinforcing member 51.
The beam girder 61 can be simply and reliably fixed by abutting and fixing the end portion of the beam girder 61 supporting the floor 60 to be added to B.

By adding reinforcements 41 and 51 to the upper beam 23 of the lower-floor building unit 20 or the lower beam 32 of the upper-floor building unit 30, the structural strength of the unit building 10 can be reasonably ensured and the blow-through 11 A floor 60 can be added to the floor.

(C) Waist wall mounting structure of the unit building 10 (FIGS. 13 to 15) When the waist wall 70 is erected on the upper floor 35 along the stairwell 11 of the unit building 10, as shown in FIGS. As shown, the pillar 71 of the waist wall 70 is joined to the lower beam 32 through the reinforcing member 51 added to the lower beam 32 of the upper floor building unit 30 as described above. The pillar 71 of the waist wall 70 is
It may be joined to the upper beam 23 through the reinforcing member 41 added to the upper beam 23 of the lower floor building unit 20.

At this time, the reinforcing member 51 is made of C-shaped steel as described above, and has the web 51B which is a vertical surface with the upper and lower flanges 51A, and the mounting plate 72 provided on the column 71 of the waist wall 70 is used as the web. 51B and is fixed by screwing the bolt 73 onto the back nut 52 (see FIG. 1).
3).

As shown in FIG. 15, the support column 71 has left and right overhanging portions 71A formed by laterally outwardly projecting both ends of the U-shaped cross section.
The projecting portion 71A is a long body located on the front side, and the above-mentioned mounting plate 72 is welded and provided at the center of the rear surface on the lower end side of the U-shaped cross section.

The waist wall 70 is fixed by inserting the edge portion of the wall panel 74 into the back surface side of each protruding portion 71A of the support column 71,
A gypsum board 75 is fixed to the surfaces of both overhanging portions 71A of the pillar 71. A headstock 76 is provided at the upper end of the waist wall 70.

Therefore, the waist wall mounting structure of the unit building 10 has the following effects. The reinforcement member 51 is added to the beam 32 facing the stairwell 11 of the unit building 10, and the support column 71 of the waist wall 70 is attached to the reinforcement member 51. Therefore, the column 71 can be supported by the beam 32 reinforced by the reinforcing member 51. Thereby, the pillars 71 can be provided along the stairwell 11 while reasonably ensuring the structural strength of the unit building 10.

The column 71 of the present invention is not limited to the column of the waist wall or the handrail wall, but can be used as a column such as a partition wall.

Therefore, in the unit building 10, the single reinforcement 41 provided on the beam 23 or the single reinforcement 51 provided on the beam 32 is (a) reinforced the blow-through 11, (b) Installation of temporary beams 44 during transportation, (c) installation of floor expansion beam 61, (d)
It can be used to attach the pillar 71. By providing a plurality of positions of the bolt holes provided in the reinforcing member 41 (51) according to the module, it is possible to partially increase the floor space or to stand the support column 71 at an arbitrary position.

The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and the design can be changed without departing from the gist of the present invention. Etc. are included in the present invention. For example, the present invention is applicable not only to unit buildings but also to general buildings.

[0057]

As described above, according to the present invention, the structural strength of a building can be reasonably ensured.

Further, according to the present invention, it is possible to add a floor to the stairwell while rationally securing the structural strength of the building.

Further, according to the present invention, it is possible to prevent deformation of the building unit during transportation.

Further, according to the present invention, the columns can be provided along the stairwell while rationally ensuring the structural strength of the building.

[Brief description of drawings]

FIG. 1 is a perspective view showing a unit building.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 shows a structure of a unit building, (A) is an overall perspective view, and (B) is an enlarged view of a main part.

FIG. 4 is a plan view showing an upper beam of a lower floor building unit.

5 is a front view showing a V portion of FIG. 4, FIG.
(B) is an end view.

6 is a VI view of FIG. 4, (A) is a front view,
(B) is an end view.

FIG. 7 is a plan view showing a lower beam of an upper floor building unit.

FIG. 8 shows a VIII part in FIG. 7, (A) is a front view,
(B) is an end view.

9 is a front view of the IX portion of FIG. 7, FIG.
(B) is an end view.

FIG. 10 shows a method for increasing the floor space of a unit building,
(A) is an overall perspective view and (B) is an enlarged view of a main part.

FIG. 11 is a plan view showing a lower beam of an upper floor building unit with an increased floor space.

12 is a front view and FIG. 12 (B) is an end view showing the XII portion of FIG. 11.

FIG. 13 is a sectional view showing a waist wall mounting structure of a unit building.

FIG. 14 is a perspective view showing a process of attaching a waist wall of a unit building.

FIG. 15 shows a column, (A) is a rear view,
(B) is a sectional view taken along the line BB.

[Explanation of symbols]

10 unit building 11 Stairwell 20 Lower floor building unit 21 pillars 22 Lower beam 23 Upper beam 30 Upper floor building unit 31 pillars 32 Lower beam 33 Upper beam 41,51 Reinforcement material 41A, 51A flange 41B, 51B Web 44 Temporary beam 60 floors 61 beam 71 prop

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) E04G 23/02 E04G 23/02 J

Claims (10)

[Claims] 1. A structure of a building comprising columns and beams, wherein the beams have upper and lower flanges, the width of the flanges is made smaller than the diameter of the columns, and at least some of the beams are provided with a reinforcing material on the side surface. The structure of the building is characterized in that the width dimension is increased, and the surface of this reinforcing material on the side opposite to the beam is almost flush with the surface of the pillar facing the same direction. 2. The structure of the building according to claim 1, wherein the reinforcing material is added to the beam facing the colonnade. 3. When the structure of the building according to claim 1 is adopted as a building unit, a temporary beam for preventing deformation of the building unit during transportation can be attached to and detached from the reinforcing member. Structure. 4. The structure of the building according to claim 1, wherein the floor to be added to the stairwell is supported by the reinforcing material. 5. The building structure according to claim 1, wherein a pillar is attached to the reinforcing member. 6. The structure of a building according to claim 1, wherein the reinforcing member is a shape member having upper and lower flanges, and the upper and lower flanges are respectively the upper and lower flanges of the beam. The structure of a building characterized by being joined together. 7. The structure of the building according to claim 1, wherein the upper-floor building unit is loaded on the lower-floor building unit, and the upper beam or the upper beam of the lower-floor building unit. A structure of a building in which the above-mentioned reinforcing material is added to the lower beam of a story building unit. 8. A building characterized in that a reinforcing material is added to the beam facing the stairwell of the building, and when a floor is added to the stairwell, the floor is joined to the beam through the reinforcing material. How to increase floor space. 9. The method for increasing floor space of a building according to claim 8, wherein the reinforcing member is a shape member having a web that is a vertical surface with upper and lower flanges, and is a beam for supporting a floor to be added. A method for increasing the floor space of a building, characterized in that the ends are fixed to the web. 10. The method for increasing floor space of a building according to claim 8 or 9, wherein an upper-floor building unit is loaded on a lower-floor building unit, and an upper beam or an upper-floor building unit of the lower floor building unit. A method for increasing the floor space of a building, characterized in that the reinforcing material is added to the lower beam of the unit.