JPH11303429A - Structure of apartment house - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve earthquake resistance by providing a support protruded in a specified direction in the vicinity of the lower end of a frame-shaped earthquake-resistant columnar part equipped in an earthquake-resistant structural body of a main structure and connecting the support to a foundation. SOLUTION: An earthquake-resistant structural body 17 is provided in the main structural body 4 of an apartment house 1 provided with layered slabs 11 and horizontally extended. The structural body is provided with frame-shaped earthquake-resistant columnar part 18 vertically piercing respective slabs 11 and a protruded support part 19 in the crossing direction against the stretching direction of the structural body 4 is formed at the position near the lower end and connected to a foundation structure 51. The protruded support part 19 is formed of an earthquake-resistant wall member or a brace member and the columnar part 18 is formed of an earth-resistant wall member to make a frame-shaped columnar form. In this way, an earthquake force can be evenly distributed to the column and the earthquake- resistant structure in the direction between the beams, in an earthquake, and further, the resistance against tumbling of the foundation can be improved and the loading horizontal force of a structural body having a rigid plane of structure can be reduced by the earthquake- resistant structural body in the girder direction, and since the stress of the beam and the relative story deformation of respective floors are uniformized, the members in the whole floors can be standardized.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a condominium such as an apartment, and more particularly, to a plate-shaped condominium having a short depth and a plurality of dwelling units arranged in a row, the frame being resistant to falling down of the foundation against an earthquake or the like. It relates to the structure of the apartment house.

[0002]

2. Description of the Related Art FIG. 14 is a schematic plan sectional view showing a conventional general plate-shaped apartment house, and FIG. 15 is a conventionally proposed plate-shaped apartment house. It is the schematic plan sectional view which showed the apartment house of another form.

Conventionally, a frame structure applied to an apartment building having a plurality of floors is a multi-story earthquake-resistant wall in which a beam-to-beam direction is a multi-story earthquake-resistant wall arranged as a door-to-door wall of each dwelling unit. In general, a ramen frame is formed by first and second ramen structures arranged to face each other.
FIG. 14 and FIG. 15 show an example of a standard floor of an apartment house having such an earthquake-resistant wall structure.

FIG. 14 shows a reference floor of a conventional general plate-shaped apartment house, which is a single-hall corridor-type plate apartment house. In this building, the first ramen structure in the girder direction, which is arranged at a boundary position between the indoor space and the balcony 160a, of a plurality of dwelling units 160 cascaded in the directions of arrows C and D in the figure, which are girder directions. 90A, a plurality of dwelling units 160 in a row, and a common corridor 15 extending in the directions of arrows C and D.
Second ramen structure 90 disposed at the boundary position with zero
B are provided so as to face each other, and a plurality of continuous layers are formed in the directions of arrows A and B in FIG. An earthquake-resistant wall 700 is installed.

FIG. 15 shows a reference floor of an apartment house different from the apartment house shown in FIG. 14, which is also a single-hall corridor plate-shaped apartment house. This building has a plurality of dwelling units 160 arranged in parallel and a common corridor 150 extending in the directions of arrows C and D.
Is a plane type in which a space having a blow-out 230 and an entrance passage 250 is provided. In the direction between the beams (directions of arrows A and B), the frame frame 750 is attached to the multi-story shear wall 700.
Are attached, and the spar direction (the directions of arrows C and D) is the first and second ramen structures 90A and 90B.
Are arranged facing each other, and a third ramen structure 90C is arranged in parallel outside the second ramen structure 90B.

[0006]

In the apartment house shown in FIG. 14, the multi-story shear wall 700 in the direction between the beams deforms into a cantilever shape during an earthquake and resists horizontal force. Therefore, when the building becomes high-rise, the vertical force (pulling force or compressive force) generated on the foundation due to the bending moment that tries to overturn the building during an earthquake
Becomes larger. Therefore, the foundations and piles become large-scale, which is an important problem not only from the seismic resistance of the building but also from the economical viewpoint. For this reason, the tower ratio of the building (a value obtained by dividing the height of the building by the length between the pillars effective for overturning the foundation) is often equal to or less than a predetermined value. The tower ratio is generally considered to be 3.5 to 4.0 as a limit, but here, the allowable tower ratio is assumed to be 3.5 or less. For example, in the example of FIG. 14, assuming that the length L01 between the effective falling columns (equivalent to the length between the beams of the multi-story earthquake-resistant wall 700) is 12.0 m, the allowable maximum height of the building is 3. 5 × 12.0 = 42.0 (m). Here, the height of the first floor is 4.0m and the height of the second floor is 3.0m.
Assuming that m, the number of floors from the 14th floor to the 15th floor is an appropriate value in the structural design. Therefore, the height is further increased, for example, in the case of a 20-story building, the height of the highest part is 61.0 m. When applied in the example of FIG. 14, the tower ratio becomes 5.08, which is preferable from the seismic resistance and economy of the building. Absent.

On the other hand, in the apartment house shown in FIG. 15, the span length L02 of the entire beam-to-beam direction is the span length L02A of the multi-story shear wall 700 and the span length L of the ramen frame 750.
02B is added. For example, span length L0
Assuming that 2A is 12.0 m and span length L02B is 6.0 m, span length L02 which is the effective inter-pillar length is 1
8.0m. That is, as compared with the example of FIG. 14, by providing the ramen frame 750, the length of the effective column between overturns is increased by the span length L02B. Therefore, in this apartment house shown in FIG. 15, the tower ratio is 3.38 even when the high-rise 20 stories (that is, the height of the highest part is 61.0 m), which is lower than the allowable tower ratio described above, and no inconvenience occurs. . However, in general, it is often the design condition that the occupied area per dwelling unit is constant in the architectural plan. Therefore, if the length of the effective column between the beams in the direction between the beams becomes large, the length in the girder direction becomes one. The span length per dwelling unit may be reduced, resulting in an elongated flat dwelling unit with a narrow frontage and a large depth. Therefore, in the example of FIG.
A blowout 230 for each dwelling unit 160 between 50 and dwelling unit 160
And a space having an entrance passage 250 is provided, and the depth of the dwelling unit 160 is reduced accordingly, so that the dwelling unit does not become slender and does not impair the livability. As described above, in the apartment house of FIG. 15, it is possible to increase the height of the apartment house without impairing the livability of the dwelling unit as compared with the apartment house of FIG. 14, but on the other hand, the construction floor area increases more than the legal floor area increases. Therefore, construction is troublesome and construction costs are increased. Further, in the girder direction, since three ramen structures are arranged in parallel, the number of columns, girders, and foundation members increases, and the cost of the structure increases.

Further, when seismic force acts in the girder direction in the apartment house shown in FIG. 15, the distribution (not shown) of the horizontal deformation in the girder direction in the vertical direction (not shown) is a typical pure ramen frame. Expected to be shear deformation. That is,
It curves slightly convexly in the lower floor portion, becomes almost linear in the middle floor portion, and largely concavely curves in the upper floor portion (not shown). This tendency of deformation becomes stronger as the building becomes higher. Therefore, if a flat apartment house is used, the stress generated in the beams in the girder direction and the inter-story displacement of each floor are not uniform between the upper and lower floors. It is necessary to set the floor height and beam cross section for each floor in accordance with the difference between the floor height and the interlayer displacement, and therefore, it is necessary to devise a method of making the floor height and the beam cross section different for each floor. However, this makes it difficult to standardize the members, which is disadvantageous in various areas such as formwork construction and precasting of beam members.

[0009] In view of the above circumstances, the present invention is a high-rise, plate-shaped apartment house. Therefore, the present invention does not require much labor for construction and does not impair economic efficiency, even though the direction between the beams is an elongated vertical shape. The structure has rich structural characteristics such as falling strength, horizontal strength, horizontal rigidity, etc. of the frame.The structure has a frame that is strong against the falling of the foundation even when seismic force acts in the direction between beams. It is an object of the present invention to provide a structure of an apartment house which can realize uniformity of floor height, beam section, etc., and promote standardization of members.

[0010]

Means for Solving the Problems The first invention of the present invention relates to a substructure (51, 5) constructed in the ground (50).
2), wherein a plurality of slabs (11) are provided in layers,
The main body structure (4, 4A, 4
B, 4C) is erected on the substructure (51, 52), and a floor space is provided between the slabs (11, 11) vertically adjacent to the main body structure (4, 4A, 4B, 4C). (12) are formed respectively, and the floor space (1
2) A plurality of dwelling units (16) are attached to the main body structure (4, 4).
(A, 4B, 4C) In an apartment house (1, 1A, 1B, 1C) arranged along the extension direction, the main body structure (4, 4A, 4B, 4C) is provided with an earthquake-resistant structure (17). The seismic structure (17) has a frame-shaped seismic column (18) having a shape vertically penetrating the plurality of slabs (11) over the plurality of floor spaces (12).
In the vicinity of the lower end of the frame-shaped seismic column (18), the frame-shaped seismic column (18) projects from the frame-shaped seismic column (18) in a direction crossing the direction of extension of the main body structure (4, 4A, 4B, 4C). The overhang support portions (19, 31) are connected to and supported by the substructures (51, 52).

[0011] A second aspect of the present invention is the construction of the apartment house according to the first aspect, wherein the overhanging support portion (1) is provided.
9) is formed by the earthquake-resistant wall member.

According to a third aspect of the present invention, in the structure of the apartment house according to the first aspect, the overhanging support portion (3
1) is formed by a brace member.

According to a fourth aspect of the present invention, in the structure of the apartment house according to the first aspect, the frame-shaped seismic column member (18) is formed in a frame-shaped column shape with a shear wall member.

According to a fifth aspect of the present invention, in the structure of the apartment house according to the first aspect, the substructure (5) is provided.
1) has an underground pile (2).

According to a sixth aspect of the present invention, in the structure of the apartment house according to the first aspect, the substructure (5) is provided.
2) is the direct basis.

The numbers and the like in parentheses are for convenience showing the corresponding elements in the drawings, and therefore, the present description is not limited to the description on the drawings.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an example of an apartment house adopting the structure of the present invention, which is a plan sectional view showing a reference floor (a floor other than the first floor), and FIG. 2 is an enlarged view of a part of the reference floor shown in FIG. 3 is a side sectional view of the apartment house shown in FIG. 1, FIG. 4 is a sectional view taken along line X1-Y1 of FIG. 3, and FIG.
FIG. 6 is a cross-sectional view taken along line X2-Y2 of FIG. 5, and FIG. 7 to FIG. 10 are sectional views of an apartment house employing the structure of the present invention. FIGS. 11 to 13 are plan views showing another example of a part of a reference floor (a floor other than the first floor), and FIGS. 11 to 13 show another example of an apartment house employing the structure of the present invention. It is a plane sectional view showing (floor other than the 1st floor).

As shown in FIG. 3, the apartment house 1 has a ground 5
0 has a basic structure 51 composed of a plurality of piles 2, underground beams 3, and foundations 5. On these basic structures 51, a tubular structure described later among the basic structures of the apartment house 1 is provided. A main body structure 4 excluding 17 is erected. The main body structure 4 includes a plurality of pillars 6A and a plurality of pillars 6B standing upright on the substructure 51 (the cross-sectional shapes of the pillars 6A and 6B are:
Although a rectangle, a rectangle, a circle, and the like are often used, any shape may be used as long as it can function as a pillar. ), And a plurality of pillars 6A (outside the balcony)
As shown in FIGS. 1 and 2, are arranged in a row in the direction of the horizontal extension of the main body structure 4, that is, in the direction of the arrows C and D in the figure, which is the girder direction of the apartment house 1 in this case. Also, a plurality of pillars 6B (outside the common corridor) are arranged in a line in the directions of arrows C and D in the figure. Furthermore, each pillar 6A and each pillar 6B are arranged facing each other in the directions indicated by arrows A and B in the drawing, which is a direction between beams of the apartment house 1 perpendicular to the girder direction, and each pillar 6A is a corresponding pillar. 6B, it is located on the arrow A side at a constant interval L1 between the columns.
The length L1 between the pillars is an effective pillar-to-pillow length in the direction between beams in the apartment house 1. A plurality of horizontal beams 7A extending in the directions of arrows C and D, which are the direction of girder, are supported in a plurality of layers on the plurality of columns 6A. The plurality of columns 6A and the plurality of beams 7A are in the girder direction. A first frame structure 9A extending in the directions of arrows C and D is configured. In addition, a plurality of horizontal beams 7B extending in the directions of arrows C and D are supported in a plurality of layers on the plurality of columns 6B, and the plurality of columns 6B and the plurality of beams 7B support the beams in the direction of the girder. , A second frame structure 9B extending in the directions of arrows C and D. As described above, in the present embodiment, the main body structure 4 is a ramen face structure 9A,
Although 9B is provided, other structures such as a wall structure or a wall-type rigid frame may be employed instead of the frame structure structures 9A and 9B as another example. Further, in this embodiment, the apartment house 1 is provided with only the substructure 51 in the ground 50. However, as another example, as shown by a two-dot chain line in FIG. The floor up to the floor may be provided in the ground 50 (that is, the first basement floor or the second basement floor may be provided).

As shown in FIG. 3, the slab 11 is supported between the first and second frame structures 9A and 9B in a form supported by the frame structures 9A and 9B.
Are provided in a plurality of layers, and slabs 1 vertically adjacent to each other are provided.
A floor space 12 is formed between 1 and 11 respectively. In addition, the apartment house 1 of this embodiment is a high-rise apartment house having 20 floors above the ground (approximately 61 m above the ground), and the apartment house 1 has a depth (length between beams) as shown in FIG. ) Is shorter than the length in the girder direction, so that the inter-beam direction is an elongated vertical shape, and the flat shape is a plate-like apartment house extending straight. The tower-to-ratio of the apartment house 1, that is, the value obtained by dividing the height of the building by the effective effective column length (the above-described column length L1) effective for overturning the foundation is a predetermined value (about 3.5). It is as follows. As shown in FIGS. 1 and 2, between the above-described ramen structural structures 9 </ b> A and 9 </ b> B, an arrow A which is basically a vertical wall shape and extends in a direction between beams.
A plurality of multi-story earthquake-resistant wall structures 60 extending in the B direction are installed. Each multi-story shear wall structure 60 has a vertical multi-story shear wall 13 extending in the direction between beams, and the multi-story shear wall 13 extends over a plurality of floor spaces 12 from the first floor to the twentieth floor. Therefore, it is formed in a form that partitions the floor space 12 of each floor (the space does not necessarily have to be completely divided into right and left). The plurality of multi-story earthquake-resistant walls 13 basically have a predetermined span length (columns 6A, 6A (6B, 6B) arranged in the girder direction) in the girder direction (arrows C and D directions in the figure). (Equal to each other).

Note that each multi-story earthquake-resistant wall 13 is not in contact with the rigid frame structural structures 9A, 9B.
As shown in FIGS. 1 and 2, a gap L11 having a predetermined size is formed in the directions indicated by the arrows A and B between the base 3 and the first frame structure 9A. An interval L13 of a predetermined size is provided between the second frame structure 9B and the second frame structure.
Are formed in the directions of arrows A and B. Multi-layer bearing wall 1
The width L12 in the direction between the beams 3 (the directions of arrows A and B) is equal. In the floor space 12 of each floor, a common corridor 15 extending in the direction of the arrows C and D, which is the girder direction, is installed adjacent to the second ramen structural structure 9B (the common corridor 15 is a multi-story seismic structure). In the floor space 12 of each floor, a plurality of dwelling units 16 are arranged adjacent to the arrow A side of the common corridor 15 in the form of an arrow C in the form of a girder direction in the floor space 12 of each floor. , D are arranged in a single column. In the same floor space 12, between the dwelling units 16 adjacent to each other, as shown in FIG. 2, the above-described multi-story earthquake-resistant wall 13 and both sides of the multi-story earthquake-resistant wall 13 in the directions of arrows A and B are installed. Wall members 61, 6
1 (non-bearing wall, not a part of the multi-story earthquake-resistant wall structure 60. It is omitted in FIG. 1 for simplicity, and is shown by a two-dot chain line in FIG. 2). Is basically divided by (with some exceptions). Each dwelling unit 16 is arranged so as to be in contact with the first ramen structural structure 9A, and the balcony 16a of each dwelling unit 16 is formed adjacent to the first ramen structural structure 9A.

Each of the above-described multi-story earthquake-resistant walls 13 and columns 6 of the first rigid-frame structural body 9A facing the inter-beam direction.
A (that is, the location corresponding to the interval L11 in the figure) and
Between each multi-story earthquake-resistant wall 13 and the column 6B of the second frame structure 9B facing the inter-beam direction (that is, the distance L in the figure)
13), the multi-story shear wall 13 and the column 6A
(Or pillars 6B) are connected to form a boundary beam 10a that forms a part of the above-described multi-story shear wall structure 60 (in FIG. 1, indicated by a line for simplicity, and in FIG. 2 is indicated by a broken line). The boundary beam 10a is rigidly connected to the column 6A (or the column 6B) and the multi-story shear wall 13. That is, each of the boundary beams 10a forms a rigid frame with the column 6A (or the column 6B), and functions as a beam for restraining the deformation of the wall of the multi-story earthquake-resistant wall structure 60 during an earthquake. .

By the way, on the above-mentioned substructure 51,
As shown in FIGS. 1 to 3, the cylindrical structure 17 is located between the frame structure structures 9 </ b> A and 9 </ b> B and the above-described plurality of multi-story earthquake-resistant wall structures 60 and arrows C which are in the girder direction. A plurality of them are erected in a line in the direction D. Plural cylindrical structures 1
7 are arranged in parallel in the directions of the arrows C and D, which are the carry directions, but they do not need to be arranged in a straight line as shown in FIG. 1, for example, even in the directions of the arrows C and D. If they are, they may be arranged in a staggered pattern. Each cylindrical structure 17 includes a columnar portion 18 and a plurality of base earthquake-resistant walls 19. That is, the columnar portion 18 of each cylindrical structure 17 is formed in a frame shape having the shape of a vertical quadrangular prism, and the wall portion 17a of the columnar portion 18 is formed of an earthquake-resistant wall (that is, a columnar shape). The part 18 is formed in a frame-shaped column shape by the earthquake-resistant wall member.) Specifically, the columnar portion 18 is formed by bending the earthquake-resistant wall member, and has a rectangular hollow cross-section in a horizontal cross-section, and thus has a cylindrical shape in the vertical direction. Each column 18 is a floor space 12 on the first floor.
A plurality of slabs 11 are vertically penetrated over a plurality of floor spaces 12 from the first floor to the twentieth floor, and each columnar portion 18 is a column having a large box-shaped cross section and its wall portion 17a.
Of the two portions 17d, 17d extending in the girder direction
And two portions 17b, 17b extending in the inter-beam direction. These portions 17d, 17b effectively resist seismic force in two directions (girder direction, inter-beam direction). In this embodiment, the columnar portion 18 which is a frame-shaped earthquake-resistant columnar portion is formed over all floors from the first floor to the 20th floor, but this frame-shaped seismic columnar portion is not necessarily formed over all floors. It does not need to be performed, and may be partially formed, for example, from the first floor to floors lower than the 20th floor. Wall part 1 of columnar part 18
7a extending in the directions of arrows A and B which are the directions between beams
As shown in FIG. 2, each of the two portions 17b, 17b has one column 6A of the first frame structure 9A and arrows A, B with respect to the column 6A of the second frame structure 9B. One column 6B facing the direction is arranged corresponding to the direction of the arrows A and B, which is the direction between beams, and is therefore in the same frame plane as the corresponding columns 6A and 6B.
In this embodiment, as shown in FIG. 2, the width of the columnar portion 18 in the direction between the beams is equal to the width L12 of the multi-layered load-bearing wall 13 described above (note that the width of the columnar portion 18 and the width of the multi-layered load-bearing wall 13 are not necessarily the same. It is not necessary to do this), and it is approximately one-third of the inter-column length L1 which is the effective inter-column length of the overturning beam, and the arrangement positions of the plurality of columnar portions 18 and the plurality of multi-layer bearing walls 13 are provided. Are aligned in the directions of arrows C and D (the direction of digit shift). In other words, at the position of each columnar portion 18, the portion 17b of the columnar portion 18 is arranged in place of the multi-story earthquake-resistant wall structure 60 described above. The width of the columnar part 18 in the girder direction and the beam-to-beam direction of the horizontal cross section is determined from the structural plan of the columnar part 18 as a necessary cross-sectional performance as one structural member. Ventilation space 23
Can be arbitrarily determined from the architectural plan of required dimensions. The wall thickness of the wall portion 17a is also determined based on the sound insulation performance against the dwelling unit 16, the strength as a structural member, and the horizontal rigidity. The structure type of the wall portion 17a will be generally reinforced concrete structure, but it is also possible to use a steel frame reinforced concrete structure (SRC structure) in which a steel frame brace is built inside the wall portion 17a, or a steel frame brace can be used. It can also be made of earthquake-resistant walls. Since the columnar portion 18 is elongated vertically, it has a feature of a wall-type rigid frame which is located between a normal multi-story shear wall and a column.

On the other hand, the base earthquake-resistant wall 19 of each tubular structure 17
Is formed of an earthquake-resistant wall. As shown in FIGS. 3 and 4, at the position of the floor space 12 on the first floor near the lower end of the columnar portion 18, the columnar portion 18 extends between the beams (arrows A and B). Direction). That is, the end of each part 17 b of the columnar part 18 on the arrow A side is
b. The base earthquake-resistant wall 1 is connected to the column 6A facing
9 are provided, and a base earthquake-resistant wall 19 is also provided between the end of each part 17b on the arrow B side and the column 6B facing the part 17b so as to connect them. In this manner, each base earthquake-resistant wall 19 is connected to the column 6A (or the column B) and supports the frame structure 9A (9B) via the column 6A (or the column B). It is connected and supported by the structure 51. In the present embodiment, a total of four base earthquake-resistant walls 19 are provided, two on each side of the arrow A side and the arrow B side for one columnar portion 18, but the base earthquake-resistant wall for one columnar portion 18 is provided. The number and positions of the walls 19 are not limited to the above-described embodiment.
That is, the number of the base earthquake-resistant walls 19 may be one or more, and the base earthquake-resistant wall 19 may be provided on at least one of the arrow A side and the arrow B side of the columnar portion 18. One base earthquake-resistant wall 19 is provided on each of the arrow A side and the arrow B side, so that a total of two base earthquake-resistant walls 19 are provided for one columnar portion 18 or, for example, only on the arrow A side of the columnar portion 18 ( Alternatively (only on the arrow B side) it is possible to provide one base shear wall 19.

Each tubular structure 17 is provided in each floor space 1.
In FIG. 2, as shown in FIG. 2, it is arranged so as to be sandwiched between dwelling units 16 from both sides in the directions of arrows C and D. Thus, in each floor space 12, the tubular structure 1
The dwelling units 16, 16 sandwiching the partition 7 are partitioned by the tubular structure 17, and the tubular structure 17 and the arrow A, at the arrow A side and the arrow B side of the tubular structure 17. B
In the direction adjacent to each other in the direction between the beams,
0 (a non-bearing wall, which is omitted in FIG. 1 for simplicity, and is shown by a two-dot chain line in FIG. 2).
Are also partitioned by the partition walls 20, 20. In the present embodiment, as shown in FIG.
Although the number is provided, the number is arbitrarily determined from the viewpoint of both the structural plan and the architectural plan, and the arrangement position is not limited to the position shown in FIG. Each of the tubular structures 17 has an annular shape in which the horizontal cross section is basically closed, and a hollow blow-out space 23 is formed inside the tubular structures 17 as shown in FIGS. It is formed in an elongated shape. These blow-off spaces 23 can be used for various purposes. For example, a well-known multi-story parking machine may be installed in the open space 23 to provide a multi-story parking lot, an elevator or stairs may be installed in the open space 23, or the open space 23 may be used as a trunk room.

Of the columns 6A and 6B of the first and second frame structures 9A and 9B described above, the columns 6A and 6B opposed to the respective cylindrical structures 17 in the direction between the beams, and the cylindrical structures 17
1 to FIG. 3, specifically, between each portion 17b of the tubular structure 17 and columns 6A and 6B opposed to each other in the directions of arrows A and B, these columns 6A , 6B and the cylindrical structure 17, and thus connecting the pillars 6A and 6B to the part 17b, are provided with horizontal boundary beams 26 (in FIG. 1, the boundary beams 26 are indicated by lines for simplicity). ing.). The number of the boundary beams 26 is four in one plane (FIG. 2) with respect to one cylindrical structure 17, and corresponds to the height position of the beams 7A and 7B of the frame structure members 9A and 9B in the vertical direction. A plurality is provided. The boundary beam 26 is a cylindrical structure 17
And a rigid connection with the column 6A (or the column 6B).
A (or the column 6B) to form a rigid frame structure, and the cylindrical structure 17 has a wall portion 17a at the time of an earthquake.
It is designed to function as a beam that restrains deformation.
The structural type of the boundary beam 26 may be any of RC structure, steel frame reinforced concrete structure (SRC structure), steel frame concrete structure (SC structure), and steel structure. Since a large bending moment and a shearing force are generated in the boundary beam 26 at the time of an earthquake, the cross-sectional specifications are particularly effective for the shear strength. In RC construction, the stirrups of stirrups are often made thicker and closely spaced, but the use of high-strength reinforcing bars and X-shaped shear reinforcing bars is more effective. In SRC, SC and steel structures, H-shaped steel is used as a steel frame member, and general steel is used as a steel material type (for example, SN400).
B, SN490B, etc.) are preferred. If the tubular structure 17 is made of RC or SRC and the boundary beam 26 is made of steel, the toughness of the structure can be enhanced by utilizing the deformation performance of the boundary beam 26. Since the steel structure is rich in toughness, even if the end of the boundary beam 26 yields during an earthquake, it retains its deformation performance and absorbs energy. As another example, although not shown, the boundary beams 26 may be provided only on a predetermined floor instead of each floor. For example, the boundary beams 26 may be provided only at the two places of the top floor and the lowest floor, and may not be provided on the middle floor, or the boundary beams 26 may be provided at several places on several floors. In the above-described embodiment, the four boundary beams 26 connected to one tubular structure 17 are provided in a plane on the floor, but are not necessarily limited thereto. For example, one or more boundary beams 26 connected to one cylindrical structure 17 may be planar in the floor.

Since the apartment house 1 is configured as described above, when seismic force acts on the apartment house 1 in the direction between beams,
Since the columns 6A and 6B and the cylindrical structure 17 on both sides of the building disperse and bear the seismic force, the tensile force and the compressive force are reduced.
A and 6B disperse almost uniformly without concentration. Therefore, as compared with the case of a condominium having a conventional structure (for example, a condominium as shown in FIG. 15), the columns 6A, 6A on both sides of the building are compared.
The tensile force and the compressive force generated in B are relatively reduced, so that the sectional design of the columns 6A and 6B becomes easy. In this way, in the direction between beams, it is advantageous for the foundation to fall during an earthquake, and since the building itself has excellent toughness and strength, it has excellent seismic performance. Is advantageous.

Further, when seismic force in the girder direction acts on the apartment house 1, the tubular structure 17 bears the horizontal force, so that the frame structure 9A, 9B is correspondingly affected. The burden horizontal force is reduced, and the stress generated in the beams 7A and 7B in the girder direction and the interlayer displacement of each floor are uniform in the vertical direction. Accordingly, even in a high-rise apartment house, the height of the floor and the cross-sectional structure of the beam can be made the same over the entire floor, and standardization of members is promoted. It offers advantages in the area. In addition, the horizontal rigidity and the horizontal strength of the frame in the girder direction are improved, and the horizontal rigidity of the frame in both the girder direction and the inter-beam direction tends to be the same, resulting in a well-balanced frame.

A special feature of the apartment house 1 of the present embodiment is that each tubular structure 17 has an inverted T-shape formed by a columnar portion 18 and four base earthquake-resistant walls 19 provided on the first floor thereof. It is a structure. As a result, apartment house 1
In the direction between the beams, it is extremely resistant to overturning of the foundation during an earthquake. That is, the vertical force generated at the lower end of the columnar portion 18 due to the seismic force in the direction between the beams can flow to the base structure 51 at the position supporting the frame structure 9A, 9B via the base earthquake-resistant wall 19 described above. Even if a large pulling force is generated near the lower end of the columnar portion 18, a stable state can be maintained.

As described above, the tower ratio of the apartment house 1 is equal to or less than a predetermined value (about 3.5), so that the length of the building in the direction between beams (the length L1 between columns) is relatively long. Has become. As a result, the depth of the room part of each dwelling unit 16 in the direction between the beams is relatively long. However, a tubular structure 17 is provided in each floor space 12 so as to be sandwiched between the dwelling units 16, 16. In the dwelling units 16, 16 adjacent to the tubular structure 17, the tubular structure 17 is provided. Since the occupied area is reduced by the area occupied by the housing 17,
Frontage (in this case, the door border wall 62 adjacent in the girder direction)
Even if the width of the partition wall 20 is not narrowed, the occupied area does not become too large (it does not become an elongated dwelling unit), and the livability can be improved. In addition, since the cylindrical structure 17 is not included in the construction floor area, the construction floor area does not need to be increased as much as possible even if the length of the building in the direction between beams is increased. Construction costs can be reduced. In addition, the blow-out space 23 in the tubular structure 17 arranged so that the occupied area of the dwelling unit 16 does not become too large.
Is advantageously used as a multi-story parking lot, an elevator room or the like instead of being used as the dwelling unit 16. Furthermore, the girder direction is the two-frame structure (first
And the second frame structure 9A, 9B), which is different from the structure requiring the three-frame structure as in the example of FIG. 15 described in the “prior art” of this specification. Therefore, the number of pillars, beams, and foundation members can be reduced, and the cost of the structure can be reduced.

Next, as another embodiment, each tubular structure 17 of the apartment house 1 can be constructed as shown in FIGS. That is, the columnar portion 18 of each cylindrical structure 17 in this case is formed only over the first to fifteenth floors as shown in FIG. At the upper part (portion of the 16th to 20th floors), a plurality of columns 36a supported on the columnar portions 18 and these columns 36a
A plurality of horizontal beams 36b supported by a form a column-beam structure 36. On the first floor of the apartment house 1, as shown in FIGS. 5 and 6, the base earthquake-resistant wall 19 as in the first embodiment is not provided.
Instead, wall braces 31 projecting obliquely up and down in the direction between the beams are connected between the respective portions 17b and the columns 6A of the columnar portion 18 and between the respective portions 17b and the columns 6B.
That is, the wall brace 31 is connected and supported via the column 6A (or column 6B) to the substructure 51 that supports the column 6A (or column 6B). When the wall brace 31 is employed in this manner, in addition to the structural effects similar to those of the above-described embodiment, the wall brace 31 allows the floor space 12 on the first floor above the ground (in the case of the present embodiment) as shown in FIG. Since the inside of the elevation is not closed, flexibility in construction planning is high, which is advantageous.
For example, the space 12A around the columnar portion 18 in the floor space 12 can be widely used as an entrance hall or the like. In this embodiment, four wall braces 31 are provided, two on each side of the arrow A side and the arrow B side with respect to one columnar portion 18, and a total of four wall braces 31 are also described above. As with the base shear wall 19,
The number and the positions of the columns 18 are not limited to those shown in FIGS. 5 and 6. That is, the number of the wall braces 31 may be one or more, and the wall brace 31 may be provided on at least one of the arrow A side and the arrow B side of the columnar portion 18. One wall brace 31 is provided on each side and the arrow B side,
Therefore, it is possible to provide a total of two wall braces 31 for one columnar portion 18, or to provide one wall brace 31 only on the arrow A side (or only on the arrow B side) of the columnar portion 18, for example. It is. Further, one or more wall braces 31 and one or more base earthquake-resistant walls 19 may be provided together for one columnar portion 18, and the shape of the wall braces 31 is not limited to that shown in FIG. For example, an X-shaped brace member may be used.

In each of the embodiments described above, the cylindrical structure 17
Although the horizontal cross-sectional shape of the columnar portion 18 is basically a closed annular shape, the horizontal cross-sectional shape of the columnar portion 18 may be other than the closed circular shape. For example, as shown in FIG. 7, the columnar portion 18 has an opening 17c on its side (arrow B side in FIG. 7), and therefore, the horizontal cross-sectional shape of the columnar portion 18 has an annular shape (in FIG. Shape). In this embodiment, as shown in FIG. 7, a stair unit 30 is installed in the blow-off space 23 of the columnar portion 18 (another elevating means such as an elevator may be installed).

As still another embodiment, as shown in FIG.
The size of the columnar portion 18 of the tubular structure 17 may be increased toward the common corridor 15 (arrow B side in the drawing) so that the columnar portion 18 is adjacent to the common corridor 15 (horizontal in FIG. 8). Although the cross-section shows the columnar portion 18 having an annular shape with an opening or a projection, the horizontal cross-section may have an annular shape without an opening or a projection. Thus, various sizes and shapes of the columnar portion 18 are possible. Further, in the first embodiment, the door boundary wall 62 is a multi-story shear wall 1.
3 and the wall members 61 on both sides thereof, as shown in FIG. 8, the door boundary wall 6 in the first embodiment.
The whole 2 may be constituted by the multi-story earthquake-resistant wall 45. in this case,
The multi-story earthquake-resistant wall structure 60 includes a multi-story earthquake-resistant wall 45 and a plurality of boundary beams 10a connecting the multi-story earthquake-resistant wall 45 and the column 6A (or the column 6B). In addition, such a multi-story earthquake-resistant wall 45 can be adopted regardless of the size and shape of the tubular structure 17.

As still another embodiment, as shown in FIG.
The first ramen structural structure 9A is arranged adjacent to the inside of the balcony 16a (arrow B side in the figure), and the second ramen structural structure 9B is arranged adjacent to the common corridor 15 (arrow A side in the figure). Between the columns 6A and 6B of the surface structures 9A and 9B facing each other, a multi-layer earthquake-resistant wall 70 may be provided so as to be directly connected to the columns 6A and 6B. It becomes a door border wall in each floor space 12.).
In this way, the multi-story earthquake-resistant wall 70 directly connected to the columns 6A and 6B
This is also an example of a multi-story shear wall structure that is a component of the present invention. In this case, the columnar portion 18 of the tubular structure 17 is not limited to the type shown in FIG. 9 (the same type as that of the first embodiment), but may be, for example, the above-described FIGS. 7 and 8 or FIGS. The type shown is also applicable.

As still another embodiment, as shown in FIG. 10, a columnar portion 18 of a tubular structure 17 is provided with four frame columns 40 and a horizontal beam 4 provided to connect these frame columns 40.
2 (a beam without the beam 42 is also possible) and a four-sided wall 41 installed on the frame. In this case, by providing the frame pillars 40 at the four corners, the wall thickness of the wall body 41 can be reduced as compared with the above-described first embodiment and the like.

In the above-described embodiment, as shown in FIG. 1, the apartment house 1 is a plate-shaped apartment house whose plane shape extends linearly, but the plate-shaped apartment house has a plane shape. It may be a linear shape bent into an L-shape or a U-shape. For example, the planar shape may be bent in an L-shape as in the apartment house 1A shown in FIG. That is, in this case, the main body structure 4A is formed to extend in the horizontal direction which is the arrow A and B directions (up and down directions on the paper) in the upper part of the paper of FIG. 11, and the arrows A and B in the lower part of the paper of FIG. Are extended in the horizontal direction, that is, the directions of arrows C and D (left and right directions on the paper) perpendicular to the horizontal direction. The first and second frame structures 9A and 9B included in the main body structure 4A are also both L-shaped.

The flat form of the standard floor of the apartment house is not limited to the one-way corridor type, but may be the middle-type corridor type. For example, FIG.
As shown in the apartment house 1B, the main body structure 4B is formed to extend linearly in the directions of arrows C and D, which are the girder directions, but a plurality of dwelling units 16 are provided in each floor space 12 in the girder direction. 12 along the directions of arrows C and D shown in FIG.
They are arranged in rows. Therefore, the common corridor 15 of each floor space 12 is arranged between rows of a plurality of dwelling units 16. That is, in this example, the main body structure 4B
Are arranged on both sides of each row of the plurality of dwelling units 16 in each floor space 12, and are provided with first and second frame structures 9P and 9Q, and first and second frame structures. 9R and 9S. Between the first and second frame structures 9P and 9Q and between the first and second frame structures 9R and 9S, a plurality of cylindrical structures 17 and a plurality of multi-story earthquake-resistant wall structures are provided. The body 60 is arranged along with the plurality of dwelling units 16 in the directions of arrows C and D, which are the direction of girder.

Further, the plane type of the reference floor of the apartment house may be a geese type. For example, as in an apartment house 1C shown in FIG. 13, the main body structure 4C has a plurality of pillars 6 and a plurality of beams 7 and the arrows A, which are parallel to the directions of arrows A and B in the horizontal diagram. It has a column-and-beam structure having another plurality of beams 7 parallel to arrows C and D perpendicular to the direction B. The planar shape of the main body structure 4C is step-like (geese-like) as shown in the figure.
The directions of extension are the directions of arrows E and F, which are oblique to the directions of arrows A and B and the directions of arrows C and D. In each floor space 12, a plurality of dwelling units 16 are provided.
It is provided in a shape corresponding to the planar shape of the main body structure 4C. That is, as shown in FIG.
While being arranged in the direction D, the dwelling units 16 and 16 adjacent in the directions of the arrows C and D are shifted in the directions of the arrows A and B, and these dwelling units 16 are generally arranged in the directions of the arrows E and F. ing. Each tubular structure 17 is provided so as to be sandwiched between dwelling units 16, 16. Therefore, the tubular structure 17 is arranged along with a plurality of dwelling units 16 in the directions of arrows E and F.
In each tubular structure 17, the base earthquake-resistant wall 19 is formed so as to connect between the columnar portion 18 of the tubular structure 17 and the column 6 facing the columnar portion 18 in the directions of arrows A and B. (Shown by broken lines in FIG. 13).

In addition, although not shown, the floor form of the standard floor of the apartment house may be various. Further, although the foundation structure 51 is a pile foundation having the piles 2, the present invention is not limited to this. For example, the foundation structure 52 may be a direct foundation such as a solid foundation as shown by a two-dot chain line in FIG. Is also good.
In addition, the apartment house 1 has 20 floors, but the number of floors is not limited thereto, and a structure (for example, an underground parking lot,
(Used as a machine room, warehouse, etc.).

[0039]

As described above, the first aspect of the present invention relates to a substructure 5 constructed in the ground such as the ground 50 or the like.
A plurality of slabs such as a slab 11 are provided in layers, and a main structure such as a main structure 4, 4A, 4B, or 4C extending in a horizontal direction is provided on the base structure. A plurality of dwelling units, such as dwelling units 16, are formed in the main body structure between the slabs vertically adjacent to each other, and a plurality of dwelling units such as dwelling units 16 are provided in the respective floor spaces. In the apartment house arranged along the extension direction of the structural body, the main body structural body has a cylindrical structure 17.
The seismic structure has a frame-shaped seismic column, such as a column 18 penetrating vertically through the plurality of slabs, over the plurality of floor spaces,
In the vicinity of the lower end of the frame-shaped seismic column, the base seismic wall 19 and the wall brace 31 projecting from the frame-shaped seismic column in a direction intersecting with the extension direction of the main body structure.
And so on in such a manner that the overhanging support portion is connected to and supported by the substructure. Therefore, the apartment house having the structure according to the present invention has a structure such as falling strength of the foundation, horizontal strength of the frame, horizontal rigidity and the like. It becomes rich in characteristic. Specifically, the seismic force in the horizontal direction in the apartment building is distributed and borne by the frame-shaped seismic columns of the seismic structure, so the tensile and compressive forces concentrate on the main structure. You don't have to. Therefore, not only is the cross-sectional design of columns and beams in the main body structure easy, but also
Since the vertical force acting on the portion of the substructure that supports the body structure is reduced, the substructure can be simplified. In particular, when a seismic force acts in a direction intersecting with the extension direction of the main body structure, such as in a direction between beams, a vertical force generated at the lower end of the frame-shaped seismic column goes through the overhanging support portion. Thus, the power is transmitted to a portion of the substructure outside the frame-shaped seismic column. As a result, the apartment house has a strong framework against falling down of the foundation in the event of an earthquake. Also, since the frame-shaped seismic column is not included in the construction floor area, the construction floor area does not need to be increased as much as possible even if the length of the building in the direction between beams is increased. Costs can be reduced. Furthermore, even when the main body structure is configured with a ramen structure, it is not necessary to provide three or more ramen structures as a requirement of the present invention.
The number of foundation members can be reduced, and the cost of the structure can be reduced.

According to a second aspect of the present invention, in the structure of the condominium according to the first aspect, the overhanging support portion is formed by an earthquake-resistant wall member. The overhanging support portion can be conveniently used as a wall for partitioning the floor space.

According to a third aspect of the present invention, in the structure of the apartment house according to the first aspect, the overhanging support portion is formed by a brace member. Since the overhanging support portion does not block the vertical surface of the floor space, the overhang support portion has high flexibility in construction planning, which is advantageous.

According to a fourth aspect of the present invention, in the structure of a condominium according to the first aspect, the frame-shaped seismic column is formed into a frame-shaped column by a earthquake-resistant wall member. In addition to the effects of the above, the frame-shaped seismic column can be made of a highly rigid structural element, which is convenient for making a housing with high earthquake resistance. Further, since the frame-shaped seismic column does not need to be provided with structural elements such as columns and beams, it is possible to save labor (such as complicated formwork installation) when constructing the frame-shaped seismic column. Furthermore, no irregularities appear on the inner and outer peripheral surfaces of the frame-shaped seismic column, which is advantageous not only in planning but also in aesthetic appearance.

According to a fifth aspect of the present invention, in the structure of the apartment house according to the first aspect, since the foundation structure has an underground pile such as the pile 2, the effect of the first aspect is obtained. In addition, in an apartment house constructed by constructing a foundation structure with underground piles, it is convenient because it can realize a framework that is resistant to the fall of the foundation during an earthquake.

According to a sixth aspect of the present invention, in the structure of the apartment house according to the first aspect, the foundation structure is a direct foundation. In an apartment house constructed by constructing a foundation structure in the form of a direct foundation without a base, it is advantageous because a framework that can withstand a fall of the foundation during an earthquake can be realized.

[Brief description of the drawings]

FIG. 1 is an example of an apartment house adopting the structure of the present invention, and is a plan sectional view showing a reference floor (a floor other than the first floor) thereof.

FIG. 2 is a detailed view showing a part of the reference floor shown in FIG. 1 in an enlarged manner.

FIG. 3 is a side sectional view of the apartment house shown in FIG. 1;

FIG. 4 is a sectional view taken along line X1-Y1 of FIG. 3;

FIG. 5 is a side sectional view showing another example of an apartment house employing the structure of the present invention.

FIG. 6 is a sectional view taken along line X2-Y2 in FIG. 5;

FIG. 7 is a plan sectional view showing another example of an apartment house employing the structure of the present invention and showing a part of a reference floor (a floor other than the first floor).

FIG. 8 is a plan sectional view showing another example of an apartment house adopting the structure of the present invention and showing a part of a reference floor (a floor other than the first floor).

FIG. 9 is a plan sectional view showing another example of an apartment house employing the structure of the present invention and showing a part of a reference floor (a floor other than the first floor).

FIG. 10 is a plan sectional view showing another example of an apartment house adopting the structure of the present invention and showing a part of a reference floor (a floor other than the first floor).

FIG. 11 is a plan sectional view showing another example of an apartment house adopting the structure of the present invention and showing a reference floor (a floor other than the first floor) thereof.

FIG. 12 is a plan view showing another example of an apartment house adopting the structure of the present invention, showing a reference floor (a floor other than the first floor).

FIG. 13 is a plan sectional view showing another example of an apartment house adopting the structure of the present invention and showing a reference floor (a floor other than the first floor) thereof.

FIG. 14 is a schematic plan sectional view showing a conventional common plate-shaped apartment house.

FIG. 15 is a schematic plan sectional view showing a plate-shaped apartment house conventionally proposed, which is a different form from the apartment house shown in FIG. 14;

[Explanation of symbols]

 1, 1A, 1B, 1C ... apartment house 2 ... underground pile (pile) 4, 4A, 4B, 4C ... body structure 11 ... slab 12 ... floor space 16 ... dwelling unit 17 ... ... seismic structure Body (cylindrical structure) 18 Frame-shaped seismic column (column) 19 Projection support (base earthquake-resistant wall) 31 Projection support (wall brace) 50 Ground 51 Foundation Structure 52: Basic structure

Claims (6)

[Claims] 1. A main structure having a substructure constructed in the ground, a plurality of slabs provided in layers, and a horizontally extending main body structure being erected on the substructure. In a cooperative house, a floor space is formed between the slabs vertically adjacent to each other in the structure, and a plurality of dwelling units are arranged in each of the floor spaces along the extension direction of the main structure. A seismic structure, the seismic structure having a frame-shaped seismic column having a shape vertically penetrating the plurality of slabs over the plurality of floor spaces; Near the lower end,
The structure of an apartment house having an overhanging support portion projecting from the frame-shaped seismic column in a direction intersecting with the direction of extension of the main structure, connected to and supported by the substructure. . 2. The structure of an apartment house according to claim 1, wherein the overhanging support portion is formed of a shear wall member. 3. The structure of an apartment house according to claim 1, wherein said overhanging support portion is formed by a brace member. 4. The structure of an apartment house according to claim 1, wherein said frame-shaped seismic column is formed of a frame-shaped column with a seismic wall member. 5. The structure of an apartment house according to claim 1, wherein said substructure has an underground pile. 6. The structure of an apartment house according to claim 1, wherein said substructure is a direct foundation.