Multi-story building

Abstract

To provide a multi-story building capable of improving a degree of freedom of arrangement of room layout and furniture within a habitable room.SOLUTION: A multi-story building comprises an outer peripheral cylindrical frame 10 formed in a cylindrical shape, an inner peripheral cylindrical frame 20 formed in a cylindrical shape and disposed on the inner peripheral side of the outer peripheral cylindrical frame 10, and a slab 30 spanning between the outer peripheral cylindrical frame 10 and the inner peripheral cylindrical frame 20.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a multi-story building used as, for example, an apartment building. [Background technology]

[0002] A known conventional multi-story building has a so-called rigid frame structure consisting of a plurality of columns spaced apart in a predetermined horizontal first direction and spaced apart in a direction perpendicular to the horizontal first direction, and a plurality of beams connecting adjacent columns to each other (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-76010 Summary of the Invention [Problem to be solved by the invention]

[0004] When a conventional multi-story building is used as an apartment building, for example, beams protrude into the rooms of each dwelling unit, which may reduce the freedom of floor plan and furniture arrangement.

[0005] An object of the present invention is to provide a multi-story building that allows greater freedom in the layout and furniture arrangement within the rooms. [Means for solving the problem]

[0006] The multi-story building of the present invention comprises an outer circumferential tubular frame formed in a cylindrical shape, an inner circumferential tubular frame arranged on the inner circumferential side of the outer circumferential tubular frame and formed in a cylindrical shape, and a slab spanning between the outer circumferential tubular frame and the inner circumferential tubular frame.

[0007] In addition, in the multi-story building of the present invention, it is preferable that the cross-sectional shapes of the outer circumferential cylindrical frame and the inner circumferential cylindrical frame are similar to each other and are polygonal with five or more sides or circular, and are arranged coaxially.

[0008] Furthermore, in the multi-story building according to the present invention, it is preferable that the outer circumferential cylindrical frame and the inner circumferential cylindrical frame, which are formed in a polygonal shape having 5 or more sides, each have pillars arranged at the corners and beams arranged at the sides connecting adjacent pillars in the circumferential direction.

[0009] In addition, in the multi-story building according to the present invention, it is preferable that the main reinforcement bars constituting each of the beams adjacent to each other in the horizontal direction through the column intersect inside the column, and the cross section of the column is formed in a diamond shape.

[0010] Furthermore, in the multi-story building of the present invention, it is preferable that the main reinforcement bars constituting the horizontally adjacent beams via the columns are bent inside the columns and extend in the longitudinal direction of each of the beams, and that the columns have a shape bent at the angles of the corners of a polygonal cross section.

[0011] In the multi-story building according to the present invention, it is preferable that the inner circumferential cylindrical frame has a seismic wall.

[0012] In addition, in the multi-story building according to the present invention, it is preferable that the earthquake-resistant walls are arranged at different positions circumferentially of the inner tubular frame relative to the arrangement of the earthquake-resistant walls in the vertically adjacent stories. [Effects of the Invention]

[0013] According to the present invention, since the slab is supported between the outer circumferential tubular frame and the inner circumferential tubular frame, it is possible to eliminate the need for beams connecting the outer circumferential tubular frame and the inner circumferential tubular frame, which makes it possible to suppress the protrusion of beams within the living spaces of each dwelling unit and improves the freedom of floor plan and furniture arrangement. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 1 is a cross-sectional plan view of a multi-story building according to one embodiment of the present invention. [Figure 2] FIG. 2 is a side view of an inner circumferential cylindrical frame according to one embodiment of the present invention. [Figure 3] FIG. 3 relates to one embodiment of the present invention, and FIG. 3(a) is a schematic plan view for explaining the shape of the columns of the outer periphery side tubular frame and the state of the main reinforcement that constitutes the beams, and FIG. 3(b) is a schematic side view for explaining the shape of the columns of the outer periphery side tubular frame and the state of the main reinforcement that constitutes the beams. [Figure 4] FIG. 4 relates to one embodiment of the present invention, and FIG. 4(a) is a schematic plan view for explaining the shape of the columns of the inner circumferential cylindrical frame and the state of the main reinforcement that constitutes the beam, and FIG. 4(b) is a schematic side view for explaining the shape of the columns of the inner circumferential cylindrical frame and the state of the main reinforcement that constitutes the beam. [Figure 5] FIG. 5 is a schematic plan view showing another example of the outer circumferential cylindrical frame and the inner circumferential cylindrical frame of the present invention. [Figure 6] FIG. 6 is a schematic plan view showing another example of the outer circumferential cylindrical frame and the inner circumferential cylindrical frame of the present invention. [Figure 7] FIG. 7 is a schematic plan view showing another example of the outer circumferential cylindrical frame and the inner circumferential cylindrical frame of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0015] Figures 1 to 4 show one embodiment of the present invention. Figure 1 is a plan cross-sectional view of a multi-story building, Figure 2 is a side view of the inner circumferential tubular frame, Figure 3(a) is a schematic plan view for explaining the shape of the columns of the outer circumferential tubular frame and the state of the main reinforcement that constitutes the beams, Figure 3(b) is a schematic side view for explaining the shape of the columns of the outer circumferential tubular frame and the state of the main reinforcement that constitutes the beams, Figure 4(a) is a schematic plan view for explaining the shape of the columns of the inner circumferential tubular frame and the state of the main reinforcement that constitutes the beams, and Figure 4(b) is a schematic side view for explaining the shape of the columns of the inner circumferential tubular frame and the state of the main reinforcement that constitutes the beams.

[0016] As shown in FIGS. 1 and 2, the multi-story building 1 of this embodiment is a multi-story reinforced concrete (RC) apartment building with multiple dwelling units on each floor.

[0017] As shown in Fig. 1, the multi-story building 1 comprises an outer circumferential tubular frame 10 formed in a cylindrical shape, an inner circumferential tubular frame 20 formed in a cylindrical shape and arranged on the inner circumferential side of the outer circumferential tubular frame 10, and a slab 30 bridged between the outer circumferential tubular frame 10 and the inner circumferential tubular frame 20. In the multi-story building 1 of this embodiment, the inner circumferential side of the inner circumferential tubular frame 20 forms an open space O, and a plurality of dwelling units D and an elevator shaft S are arranged on the outer circumferential side of the inner circumferential tubular frame 20.

[0018] As shown in Fig. 1, the outer periphery tubular frame 10 is a rigid frame consisting of a plurality of columns 11 spaced apart in the circumferential direction and a plurality of beams 12 connecting adjacent columns 11 in the circumferential direction, and has openings that can be used as windows formed on the outer periphery of the dwelling unit D. In plan view, the outer periphery tubular frame 10 has an octagonal shape centered at point C, with the columns 11 arranged at the corners of the octagon and the beams 12 arranged at the sides.

[0019] 3, in the outer circumferential cylindrical frame 10, the main reinforcements 12a constituting each of the beams 12, 12 adjacent in the horizontal direction via the column 11 intersect alternately in the vertical direction inside the column 11. The column 11 is formed to have a diamond-shaped cross section in a plan view.

[0020] The inner circumferential tubular frame 20 is a rigid frame structure consisting of a plurality of columns 21 spaced apart in the circumferential direction and a plurality of beams 22 connecting adjacent columns 21 in the circumferential direction. In plan view, the inner circumferential tubular frame 20 has an octagonal shape centered at point C, with the columns 21 arranged at the corners of the octagon and the beams 22 arranged at the sides. Furthermore, earthquake-resistant walls 23 are arranged on some of the walls of the inner circumferential tubular frame 20, and glass or sashes that allow the void O to be seen are arranged on the other walls of the inner circumferential tubular frame 20, for example. As shown in FIG. 2 , the earthquake-resistant walls 23 are arranged alternately in the circumferential direction among the multiple walls arranged on the inner circumferential tubular frame 20 on each floor, and are arranged alternately on even-numbered floors and odd-numbered floors. That is, the earthquake-resistant walls 23 are arranged at different positions in the circumferential direction of the inner circumferential tubular frame 20 compared to the arrangement of the earthquake-resistant walls 23 on adjacent floors in the vertical direction.

[0021] 4, in the inner circumference-side tubular frame 20, main reinforcements 22a constituting beams 22, 22 adjacent in the horizontal direction via a column 21 are bent inside the column 21 and extend in the longitudinal direction of each beam 22, 22. Both ends of the main reinforcements 22a extend to the center of the longitudinal direction of each beam 22 and are connected via joints 22b to ends of the main reinforcements 22a extending from the adjacent column 21. The cross-sectional shape of the column 21 in a plan view is bent at the angles of the corners of the polygonal shape of the inner circumference-side tubular frame 20 and extends along the circumferential direction of the polygon.

[0022] Here, the outer circumferential tubular frame 10 and the inner circumferential tubular frame 20 have cross-sectional shapes that are similar to each other and are arranged on the same axis passing through point C. Furthermore, the beams 12, 22 that face each other in the horizontal direction in the outer circumferential tubular frame 10 and the inner circumferential tubular frame 20 are parallel to each other. Furthermore, the outer circumferential tubular frame 10 and the inner circumferential tubular frame 20 are not limited to an octagonal shape as long as their cross-sectional shapes are polygonal with pentagons or more. They may also be circular.

[0023] The slab 30 is arranged in a portion other than the elevator shaft S between the outer circumferential tubular frame 10 and the inner circumferential tubular frame 20. The slab 30 is supported by beams 12, 22 that face each other in the horizontal direction of the outer circumferential tubular frame 10 and the inner circumferential tubular frame 20. The slab 30 does not require a beam to span between the outer circumferential tubular frame 10 and the inner circumferential tubular frame 20, and the size in the thickness direction is uniform throughout the circumferential direction between the outer circumferential tubular frame 10 and the inner circumferential tubular frame 20.

[0024] Thus, the multi-story building of this embodiment comprises an outer circumferential tubular frame 10 formed in a cylindrical shape, an inner circumferential tubular frame 20 formed in a cylindrical shape and arranged on the inner circumferential side of the outer circumferential tubular frame 10, and a slab 30 spanning between the outer circumferential tubular frame 10 and the inner circumferential tubular frame 20.

[0025] As a result, the slab 30 is supported between the outer circumferential tubular frame 10 and the inner circumferential tubular frame 20, making it possible to eliminate the need for beams connecting the outer circumferential tubular frame 10 and the inner circumferential tubular frame 20, thereby making it possible to suppress the protrusion of beams within the living space of each dwelling unit D and increasing the freedom of floor plan and furniture arrangement.

[0026] Furthermore, it is preferable that the outer circumferential cylindrical frame 10 and the inner circumferential cylindrical frame 20 have cross-sectional shapes that are similar to each other, such as a polygon with five or more sides or a circle, and are arranged coaxially.

[0027] This makes it possible to make the distance between the outer circumferential tubular frame 10 and the inner circumferential tubular frame 20 approximately the same in the circumferential direction, making it possible to form the thickness dimension of the slab 30 to be the same in the circumferential direction, and thereby enabling greater freedom in the layout and furniture arrangement within the space within each dwelling unit D.

[0028] Furthermore, it is preferable that the outer circumferential cylindrical frame 10 and the inner circumferential cylindrical frame 20, which are formed in a polygonal shape having pentagons or more sides, have pillars 11, 21 arranged at the corners and beams 12, 22 arranged at the sides to connect adjacent pillars in the circumferential direction.

[0029] This makes it possible to minimize the overhang of the pillars 11, 21 within the living space of each dwelling unit, thereby enabling greater freedom in floor plan and furniture placement.

[0030] Furthermore, it is preferable that the main reinforcements 12a constituting each of the beams 12, 12 adjacent to each other in the horizontal direction via the column 11 intersect inside the column 11, and that the column 11 has a diamond-shaped cross section.

[0031] This makes it possible to eliminate the need for joints to connect the main reinforcements 12a that constitute each of the beams 12, thereby reducing the number of steps required for reinforcement work.

[0032] Furthermore, it is preferable that the main reinforcement 22a constituting the beams 22, 22 adjacent to each other horizontally through the column 21 is bent inside the column 21 and extends horizontally, and that the column 21 has a shape in which the cross section is bent at the angles of the corners of the polygonal shape and extends circumferentially of the polygonal shape.

[0033] This makes it possible to ideally position the main reinforcements 22a in the beams 22 in the height direction, thereby improving the performance of the beams 22. Furthermore, since it is no longer necessary to connect the main reinforcements 22a that make up adjacent beams 22 inside the column 21, it is possible to reduce the number of steps required for reinforcing bar construction.

[0034] Moreover, it is preferable that the inner circumferential cylindrical frame 20 has a seismic wall 23 .

[0035] As a result, by ensuring the earthquake resistance performance of the multi-story building 1 in the inner tubular frame 20, it becomes possible to make the beams 12 flat beams in the outer tubular frame 10, and it becomes possible to enlarge the openings in the outer tubular frame 10, thereby improving the lighting inside the rooms of each dwelling unit D and making it possible to enjoy views of the outdoors from inside the rooms.

[0036] Furthermore, it is preferable that the earthquake-resistant walls 23 are arranged at positions in the circumferential direction of the inner circumferential cylindrical frame 20 that are different from the arrangement of the earthquake-resistant walls 23 in the stories adjacent in the vertical direction.

[0037] This allows the multi-story building 1 to exhibit uniform earthquake resistance performance across the entire building, and also allows light to enter through the atrium O, ensuring earthquake resistance and improving the living environment in each dwelling unit D.

[0038] In the above embodiment, the multi-story building 1 is shown in which the outer circumferential tubular frame 10 and the inner circumferential tubular frame 20 are each formed into a tubular shape with an octagonal cross section, but this is not limited to this. As for the multi-story building 1, even if the outer circumferential tubular frame 10 and the inner circumferential tubular frame 20 are each formed into a tubular shape with a circular cross section as shown in Fig. 5, it is possible to obtain the same effect as in the above embodiment.

[0039] Furthermore, for the multi-story building 1, the outer circumferential cylindrical frame 10 and the inner circumferential cylindrical frame 20 may each be formed by cutting an octagonal cross-section cylinder in half and connecting each end with a straight frame, as shown in Figure 6, to obtain the same effect as in the above embodiment.

[0040] In addition, in the above embodiment, the multi-story building 1 is shown to have one outer circumferential tubular frame 10 and one inner circumferential tubular frame 20, but the present invention is not limited to this. As shown in Fig. 7, the multi-story building 1 may have, for example, an outer circumferential tubular frame 10, a first inner circumferential tubular frame 40 arranged on the inner circumferential side of the outer circumferential tubular frame 10, and a second inner circumferential tubular frame 50 arranged on the inner circumferential side of the first inner circumferential tubular frame 40. Even if the multi-story building 1 is made up of three or more tubular frames, it is possible to obtain the same effects as in the above embodiment.

[0041] In addition, in the above embodiment, the multi-story building 1 is shown without a beam spanning between the outer circumferential tubular frame 10 and the inner circumferential tubular frame 20, but it is also possible to improve the strength by spanning a beam between the outer circumferential tubular frame and the inner circumferential tubular frame. In this case, by forming the beam spanning between the outer circumferential tubular frame and the inner circumferential tubular frame as a flat beam whose size in the thickness direction is the same as the size in the thickness direction of the slab, it is possible to suppress the protrusion of the beam within the living space of each dwelling unit.

[0042] In the above embodiment, the columns 11 of the outer circumferential tubular frame 10 are formed to have a diamond-shaped cross section in a plan view, and the columns 21 of the inner circumferential tubular frame 20 are formed so that their cross-sectional shape in a plan view is bent at the angles of the corners of the polygonal shape of the inner circumferential tubular frame 20 and extends along the circumferential direction of the polygon. However, this is not limited to this. The columns of both the outer circumferential tubular frame and the inner circumferential tubular frame may be formed to have a diamond-shaped cross section in a plan view, or their cross-sectional shape in a plan view may be bent at the angles of the corners of the polygonal shape and extend along the circumferential direction of the polygon. Furthermore, the columns of the outer circumferential tubular frame may be formed so that their cross-sectional shape in a plan view is bent at the angles of the corners of the polygonal shape of the outer circumferential tubular frame and extends along the circumferential direction of the polygon, and the columns of the inner circumferential tubular frame may be formed to have a diamond-shaped cross section in a plan view.

[0043] In addition, in the above embodiment, a multi-story building 1 is shown in which an elevator shaft S is arranged in addition to multiple dwelling units D on the outer side of the inner circumferential cylindrical frame 20, but this is not limited to this, and a shaft for other purposes such as a staircase may be arranged in addition to multiple dwelling units. [Explanation of symbols]

[0044] 1 Multi-story building 10 Outer cylindrical frame 11 pillars 12 Beam 12a Main bar 20 Inner cylindrical frame 21 pillars 22 Beam 22a Main bar 22b Joint 30 Slabs

Claims

1. an outer circumferential cylindrical frame formed in a cylindrical shape; an inner circumferential cylindrical frame that is disposed on the inner circumferential side of the outer circumferential cylindrical frame and is formed in a cylindrical shape; a slab bridged between the outer circumferential cylindrical frame and the inner circumferential cylindrical frame. Multi-story building.

2. The outer circumferential cylindrical frame and the inner circumferential cylindrical frame are The cross-sectional shapes of the respective components are similar to each other and are polygonal with five or more sides or circles, are arranged coaxially The multi-story building according to claim 1.

3. The outer circumferential cylindrical frame and the inner circumferential cylindrical frame each formed in a polygonal shape having pentagons or more sides are Pillars are placed at the corners, Beams are placed along the sides to connect adjacent columns in the circumferential direction.

3. The multi-story building according to claim 2.

4. The main reinforcements constituting each of the beams adjacent to each other in the horizontal direction through the column intersect inside the column, The pillars have a diamond-shaped cross section. The multi-story building according to claim 3.

5. The main reinforcement constituting the beams adjacent to each other in the horizontal direction via the column is bent inside the column and extends in the longitudinal direction of each of the beams, The pillar has a cross section bent at the angles of the corners of the polygon and extending in the circumferential direction of the polygon. The multi-story building according to claim 3.

6. The inner circumferential cylindrical frame has a seismic wall. The multi-story building according to claim 3.

7. The earthquake-resistant walls are arranged at positions in the circumferential direction of the inner circumferential cylindrical frame that are different from the positions of the earthquake-resistant walls in the vertically adjacent stories.

7. The multi-story building according to claim 6.

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