Multi-story buildings

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, for example, as an apartment building.

Background Art

[0002] As a conventional multi-story building, there is known one having a so-called ramen structure including a plurality of columns arranged at intervals in a predetermined first direction in the horizontal direction and arranged at intervals in a direction orthogonal to the first direction in the horizontal 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

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the case where a conventional multi-story building is used, for example, as an apartment building, beams project into the living rooms of each household, and there is a possibility that the freedom in room layout and furniture arrangement may decrease.

[0005] An object of the present invention is to provide a multi-story building capable of improving the freedom in room layout and furniture arrangement in a living room.

Means for Solving the Problems

[0006] The multi-story building according to the present invention includes an outer peripheral cylindrical structure formed in a cylindrical shape, an inner peripheral cylindrical structure disposed on the inner peripheral side of the outer peripheral cylindrical structure and formed in a cylindrical shape, and a slab spanned between the outer peripheral cylindrical structure and the inner peripheral cylindrical structure.

[0007] Furthermore, in the multi-story building according to 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 polygonal shapes of 5 or more sides or circular shapes, 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 of five or more sides, have columns arranged at the corners and beams arranged at the sides to connect adjacent columns in the circumferential direction.

[0009] Furthermore, in the multi-story building according to the present invention, it is preferable that the main reinforcing bars constituting each of the beams that are adjacent to each other in the horizontal direction via the column intersect inside the column, and the cross-section of the column is formed in a rhomboid shape.

[0010] Furthermore, in the multi-story building according to the present invention, it is preferable that the main reinforcing bars constituting the beams adjacent to each other in the horizontal direction via the columns are bent inside the columns and extend in the longitudinal direction of each beam, and that the columns have a shape in which the cross-section is bent at the angle of the corner portion of the polygonal shape.

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

[0012] Furthermore, in the multi-story building according to the present invention, it is preferable that the seismic walls are arranged at different positions in the circumferential direction of the inner circumferential cylindrical frame with respect to the arrangement of the seismic walls in adjacent floors in the vertical direction. [Effects of the Invention]

[0013] According to the present invention, since the slab is supported between the outer cylindrical frame and the inner cylindrical frame, it becomes possible to eliminate the need for beams connecting the outer cylindrical frame and the inner cylindrical frame, thereby suppressing the overhang of beams in the living spaces of each dwelling unit and improving the freedom of floor plan and furniture arrangement. [Brief explanation of the drawing]

[0014] [Figure 1] Figure 1 is a cross-sectional plan view of a multi-story building according to one embodiment of the present invention. [Figure 2] Figure 2 is a side view of an inner circumferential cylindrical frame according to one embodiment of the present invention. [Figure 3] Figure 3 relates to one embodiment of the present invention, where Figure 3(a) is a schematic plan view illustrating the shape of the columns of the outer cylindrical frame and the state of the main reinforcement constituting the beams, and Figure 3(b) is a schematic side view illustrating the shape of the columns of the outer cylindrical frame and the state of the main reinforcement constituting the beams. [Figure 4] Figure 4 relates to one embodiment of the present invention, where Figure 4(a) is a schematic plan view illustrating the shape of the columns and the state of the main reinforcement constituting the beams of the inner circumferential cylindrical frame, and Figure 4(b) is a schematic side view illustrating the shape of the columns and the state of the main reinforcement constituting the beams of the inner circumferential cylindrical frame. [Figure 5] Figure 5 is a schematic plan view showing other examples of the outer circumferential cylindrical frame and the inner circumferential cylindrical frame of the present invention. [Figure 6] Figure 6 is a schematic plan view showing other examples of the outer circumferential cylindrical frame and the inner circumferential cylindrical frame of the present invention. [Figure 7] Figure 7 is a schematic plan view showing other examples of the outer circumferential cylindrical frame and the inner circumferential cylindrical frame of the present invention. [Modes for carrying out the invention]

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

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

[0017] As shown in FIG. 1, the multi-story building 1 includes 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 spanned between the outer peripheral cylindrical frame 10 and the inner peripheral cylindrical frame 20. In the multi-story building 1 of the present embodiment, the inner peripheral side of the inner peripheral cylindrical frame 20 is an atrium O, and a plurality of dwelling units D and elevator shafts S are disposed on the outer peripheral side of the inner peripheral cylindrical frame 20.

[0018] As shown in FIG. 1, the outer peripheral cylindrical frame 10 is a ramen frame composed of a plurality of columns 11 arranged at intervals in the circumferential direction and a plurality of beams 12 connecting the columns 11 adjacent to each other in the circumferential direction, and an opening that can be used as a window is formed on the outer peripheral side of the dwelling unit D. The outer peripheral cylindrical frame 10 has an octagonal shape centered on point C in plan view, the columns 11 are arranged at the corner portions of the octagon, and the beams 12 are arranged at the side portions.

[0019] Further, as shown in FIG. 3, in the outer peripheral cylindrical frame 10, main bars 12a constituting the respective beams 12, 12 adjacent to each other in the horizontal direction intersect with each other in the vertical direction inside the column 11 via the column 11. The column 11 is formed in a rhombic shape in plan view.

[0020] The inner peripheral side cylindrical structure 20 is a ramen structure composed of a plurality of columns 21 arranged at intervals in the circumferential direction and a plurality of beams 22 connecting the columns 21 adjacent to each other in the circumferential direction. The inner peripheral side cylindrical structure 20 has an octagonal shape centered on point C in plan view, with columns 21 arranged at the corner portions of the octagon and beams 22 arranged at the side portions. Also, a seismic wall 23 is arranged on a part of the wall in the inner peripheral side cylindrical structure 20, and glass or sashes that enable visual recognition of the atrium O, for example, are arranged on the other walls in the inner peripheral side cylindrical structure 20. As shown in FIG. 2, the seismic wall 23 is arranged every other one in the circumferential direction among the plurality of walls arranged in the inner peripheral side cylindrical structure 20 on each floor, and is arranged alternately between even floors and odd floors. That is, the seismic wall 23 is arranged at different positions in the circumferential direction of the inner peripheral side cylindrical structure 20 with respect to the arrangement of the seismic wall 23 in the vertically adjacent floors.

[0021] Also, as shown in FIG. 4, in the inner peripheral side cylindrical structure 20, the main reinforcement bars 22a constituting the beams 22, 22 adjacent to each other in the horizontal direction via the columns 21 are bent inside the columns 21 and extend in the longitudinal directions of the respective beams 22, 22. Both ends of the main reinforcement bars 22a extend to the central portions in the longitudinal directions of the respective beams 22, and are connected via joints 22b to the ends of the main reinforcement bars 22a extending from the adjacent columns 21. The cross-sectional shape of the column 21 in plan view is bent at the angle of the corner portion of the polygonal shape of the inner peripheral side cylindrical structure 20 and extends along the circumferential direction of the polygon. "

[0022] Here, the outer peripheral side cylindrical structure 10 and the inner peripheral side cylindrical structure 20 each have an octagonal cross-sectional shape that is similar to each other, and are arranged coaxially passing through point C. Also, the beams 12, 22 facing each other in the horizontal direction in the outer peripheral side cylindrical structure 10 and the inner peripheral side cylindrical structure 20 are parallel to each other. Further, the outer peripheral side cylindrical structure 10 and the inner peripheral side cylindrical structure 20 are not limited to an octagonal shape as long as their cross-sectional shapes are polygonal shapes with five or more sides, and may also be circular shapes.

[0023] Slab 30 is located in the area between the outer circumferential cylindrical frame 10 and the inner circumferential cylindrical frame 20, excluding the elevator shaft S. Slab 30 is supported by beams 12 and 22 that are horizontally opposed to each other on the outer circumferential cylindrical frame 10 and the inner circumferential cylindrical frame 20. Slab 30 does not require beams to be spanned between the outer circumferential cylindrical frame 10 and the inner circumferential cylindrical frame 20, and its thickness is uniform across the circumferential direction between the outer circumferential cylindrical frame 10 and the inner circumferential cylindrical frame 20.

[0024] Thus, according to this embodiment of multi-story buildings, the building comprises a cylindrical outer circumferential tubular frame 10, an inner circumferential tubular frame 20 arranged on the inner circumferential side of the outer circumferential tubular frame 10 and also cylindrical, 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 cylindrical frame 10 and the inner cylindrical frame 20, eliminating the need for beams connecting the outer cylindrical frame 10 and the inner cylindrical frame 20. This makes it possible to suppress the overhang of beams within the living spaces of each dwelling unit D, thereby improving 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 each have a similar cross-sectional shape, 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 cylindrical frame 10 and the inner cylindrical frame 20 approximately the same throughout the circumferential direction, thereby making it possible to form the slab 30 with the same thickness throughout the circumferential direction, and thus increasing the degree of freedom in the layout and furniture arrangement within the living space of 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 of five or more sides, have columns 11 and 21 arranged at the corners and beams 12 and 22 arranged at the sides to connect adjacent columns in the circumferential direction.

[0029] This makes it possible to minimize the protrusion of columns 11 and 21 within the living spaces of each dwelling unit, thereby increasing the flexibility of the floor plan and furniture arrangement.

[0030] Furthermore, it is preferable that the main reinforcement bars 12a constituting each of the horizontally adjacent beams 12, 12 connected by the column 11 intersect inside the column 11, and that the column 11 has a rhomboid cross-section.

[0031] This eliminates the need for splices to connect the main reinforcement bars 12a that make up each of the beams 12, thereby reducing the number of construction steps required for reinforcement work.

[0032] Furthermore, it is preferable that the main reinforcement bars 22a constituting the horizontally adjacent beams 22, 22 connected by the column 21 are bent within the column 21 and extend horizontally, and that the column 21 has a shape in which the cross-section is bent at the angle of the corner portion of the polygon and extends in the circumferential direction of the polygon.

[0033] This makes it possible to ideally position the main reinforcement bars 22a in the beam 22 in the height direction, thereby improving the performance of the beam 22. In addition, since it becomes unnecessary to connect the main reinforcement bars 22a that make up adjacent beams 22 inside the column 21, it is possible to reduce the number of construction man-hours in reinforcement work.

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

[0035] As a result, by ensuring the seismic performance of the multi-story building 1 in the inner circumferential cylindrical frame 20, it becomes possible to use flat beams for the beams 12 in the outer circumferential cylindrical frame 10, and thus it becomes possible to enlarge the openings in the outer circumferential cylindrical frame 10, thereby improving the amount of natural light entering the living spaces of each dwelling unit D, and also allowing residents to enjoy views of the outdoors from inside the living spaces.

[0036] Furthermore, it is preferable that the seismic walls 23 are positioned at different locations in the circumferential direction of the inner circumferential cylindrical frame 20 with respect to the arrangement of seismic walls 23 in adjacent floors in the vertical direction.

[0037] This allows for uniform seismic performance throughout the vertical direction of the multi-story building 1, while also enabling natural light from the atrium O, thereby ensuring seismic performance and improving the living environment in each dwelling unit D.

[0038] In the above embodiment, a multi-story building 1 was shown in which the outer circumferential cylindrical frame 10 and the inner circumferential cylindrical frame 20 were each formed as cylindrical shapes with an octagonal cross-section, but the invention is not limited to this. As shown in Figure 5, the same effects as in the above embodiment can be obtained even if the outer circumferential cylindrical frame 10 and the inner circumferential cylindrical frame 20 are each formed as cylindrical shapes with a circular cross-section.

[0039] Furthermore, as a multi-story building 1, the same effects as in the above embodiment can be obtained even if the outer circumferential cylindrical frame 10 and the inner circumferential cylindrical frame 20 are each made by cutting an octagonal cylindrical shape in half and connecting the ends with a single straight frame, as shown in Figure 6.

[0040] Furthermore, although the above embodiment shows a multi-story building 1 comprising one outer circumferential cylindrical frame 10 and one inner circumferential cylindrical frame 20, it is not limited to this. As shown in Figure 7, the multi-story building 1 may, for example, comprise an outer circumferential cylindrical frame 10, a first inner circumferential cylindrical frame 40 arranged on the inner side of the outer circumferential cylindrical frame 10, and a second inner circumferential cylindrical frame 50 arranged on the inner side of the first inner circumferential cylindrical frame 40, and it is possible to obtain the same effects as in the above embodiment even if it consists of three or more cylindrical frames.

[0041] Furthermore, although the above embodiment shows a multi-story building 1 without a beam spanning between the outer cylindrical frame 10 and the inner cylindrical frame 20, it is also possible to improve the strength by spanning a beam between the outer cylindrical frame and the inner cylindrical frame. In this case, by forming a flat beam whose thickness in the thickness direction is the same as the thickness in the slab, it is possible to suppress the overhang of the beam within the living spaces of each dwelling unit.

[0042] Furthermore, in the above embodiment, the columns 11 of the outer circumferential cylindrical frame 10 are formed with a rhomboid cross-section in plan view, and the columns 21 of the inner circumferential cylindrical frame 20 are formed so that, in plan view, the cross-sectional shape is bent at the angle of the corner portion of the polygon of the inner circumferential cylindrical frame 20 and extends along the circumferential direction of the polygon, but the embodiment is not limited to this. The columns of both the outer circumferential cylindrical frame and the inner circumferential cylindrical frame may be formed with a rhomboid cross-section in plan view, or the cross-sectional shape in plan view may be bent at the angle of the corner portion of the polygon and extend along the circumferential direction of the polygon. Alternatively, the columns of the outer circumferential cylindrical frame may be formed so that, in plan view, the cross-sectional shape is bent at the angle of the corner portion of the polygon of the outer circumferential cylindrical frame and extends along the circumferential direction of the polygon, and the columns of the inner circumferential cylindrical frame may be formed with a rhomboid cross-section in plan view.

[0043] Furthermore, although the above embodiment shows a multi-story building 1 in which an elevator shaft S is arranged on the outer circumference side of the inner cylindrical frame 20 in addition to a plurality of dwelling units D, the building is not limited to this, and shafts for other purposes such as stairs may be arranged in addition to the plurality of 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 Fitting 30 slabs

Claims

1. A cylindrical outer circumferential frame formed in a cylindrical shape, An inner circumferential tubular frame is positioned on the inner circumferential side of the outer circumferential tubular frame and is formed in a cylindrical shape, The system comprises a slab spanning between the outer circumferential cylindrical frame and the inner circumferential cylindrical frame, The outer circumferential cylindrical frame and the inner circumferential cylindrical frame are, Each cross-sectional shape is a polygon with five or more sides that are similar to each other. Arranged on the same axis, The outer circumferential cylindrical frame and the inner circumferential cylindrical frame, which are formed in a polygonal shape of five or more sides, are each, Columns are placed at the corners, Beams are placed along the edges to connect adjacent columns in the circumferential direction. The main reinforcing bars that constitute each of the beams adjacent to each other horizontally via the column intersect within the column. The aforementioned column has a rhomboid cross-section. Multi-story building.

2. A cylindrical outer circumferential frame formed in a cylindrical shape, An inner circumferential tubular frame is positioned on the inner circumferential side of the outer circumferential tubular frame and is formed in a cylindrical shape, The system comprises a slab spanning between the outer circumferential cylindrical frame and the inner circumferential cylindrical frame, The outer circumferential cylindrical frame and the inner circumferential cylindrical frame are, Each cross-sectional shape is a polygon with five or more sides that are similar to each other. Arranged on the same axis, The outer circumferential cylindrical frame and the inner circumferential cylindrical frame, which are formed in a polygonal shape of five or more sides, are each, Columns are placed at the corners, Beams are placed along the edges to connect adjacent columns in the circumferential direction. The main reinforcement bars constituting the beams adjacent to each other horizontally via the column are bent within the column and extend in the longitudinal direction of each beam. The column has a cross-section that is bent at the angle of the corner portion of the polygon and extends in the circumferential direction of the polygon. Multi-story building.

3. The inner circumferential cylindrical frame has seismic walls. A multi-story building according to claim 1 or 2.

4. The aforementioned seismic walls are positioned at different locations in the circumferential direction of the inner circumferential cylindrical frame compared to the arrangement of seismic walls in adjacent floors in the vertical direction. A multi-story building according to claim 3.

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