JP2016135977A - Structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure a shared space part while ensuring an earthquake-resistant performance.SOLUTION: A structure 10 has a floor part 16 and an exclusive space part 10B that is formed along a periphery of the floor part 16 and surrounds a shared space part 10A formed at a central part of the floor part 16. The exclusive space part 10B has multiple room units 30X, 30Y. The room units 30X, 30Y have multiple rooms 34 partitioned by earthquake-resistant border walls 36. Adjacent room units 30X, 30Y extend in intersecting directions and are connected through the floor part 16.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a structure.

  Four existing structures arranged in a “B” shape in plan view are connected, and the longitudinal construction of one adjacent existing structure is compared with the short construction of the other adjacent existing structure. There is known a seismic reinforcement structure of an existing structure that is reinforced with a seismic wall installed on a surface (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 11-336332

  In the earthquake-proof reinforcement structure disclosed in Patent Document 1, since only four existing structures are connected independently, there is no shared space portion that can be shared by the four existing structures.

  In view of the above facts, an object of the present invention is to secure a shared space portion while ensuring seismic performance.

  The structure according to claim 1 is provided with a floor portion and a dedicated space portion that is provided along an outer peripheral portion of the floor portion and surrounds a common space portion formed at a center portion of the floor portion, The dedicated space portion has a first unit having a plurality of rooms partitioned by a boundary earthquake-resistant wall, a plurality of rooms partitioned by a boundary boundary earthquake-resistant wall, and extends in a direction intersecting the first unit. And a second unit connected to the first unit through the floor.

  According to the structure which concerns on Claim 1, an exclusive space part is provided along the outer peripheral part of a floor part. Thereby, the shared space part enclosed by the exclusive space part is ensured in the center part of the floor part.

  The dedicated space portion has a first unit and a second unit. The first unit and the second unit each have a plurality of rooms partitioned by a boundary earthquake resistant wall. The second unit is connected to the first unit via the floor. Thereby, during an earthquake, seismic force is transmitted between the first unit and the second unit via the floor.

  Here, the second unit extends in a direction intersecting with the first unit. Thereby, for example, the construction surface of the first unit in the direction intersecting with the door boundary earthquake resistant wall is reinforced by the second unit door boundary earthquake resistant wall. Therefore, the seismic performance of the structure is improved.

  Thus, in this invention, a shared space part can be ensured, ensuring the earthquake resistance performance of a structure.

  Furthermore, in the present invention, the first unit and the second unit are provided along the outer peripheral portion of the floor portion, and the floor portion is obtained by consolidating the door boundary earthquake-resistant wall as an earthquake-resistant element in the first unit and the second unit. It is possible to reduce the seismic elements in the common space formed in the central part. Thereby, the common space part with a high plan freedom degree can be ensured in the center part of a floor part, ensuring the seismic performance of a structure.

  As described above, according to the structure according to the present invention, it is possible to secure the shared space portion while securing the earthquake resistance performance of the structure.

It is an elevation which shows the structure concerning one embodiment of the present invention. FIG. 2 is a sectional view taken along line 2-2 of FIG. It is a perspective view which shows a part of room unit shown by FIG. It is sectional drawing corresponding to FIG. 2 which shows the modification of the structure based on one Embodiment of this invention.

  Hereinafter, a structure according to an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 and 2, in the structure 10 according to the present embodiment, the central portion is the shared space portion 10A, and the outer peripheral portion is the dedicated space portion 10B.

  The common space portion 10A is made of steel. Specifically, the shared space portion 10 </ b> A is constructed between a plurality of (four in the present embodiment) steel pillars 12 standing in the center and the adjacent steel pillars 12, and from each steel pillar 12 to the structure 10. A steel beam 14 extending to the dedicated space portion 10B, and a floor slab 16A made of reinforced concrete (hereinafter referred to as “RC”) supported by the steel beam 14. In the common space portion 10A of the structure 10, a blow-off space 18 without a floor slab is appropriately formed.

  On the other hand, the dedicated space portion 10B is made of RC. Specifically, the dedicated space portion 10B has a wall-type concrete structure without columns or beams. The dedicated space portion 10B includes a precast concrete floor slab 16B and a precast concrete room unit 30 described later.

  In the common space portion 10A and the dedicated space portion 10B, the floor slabs 16A and 16B are joined to each other via a cast-in-place concrete or the like on a predetermined floor. Thereby, the floor 16 extending over the common space 10A and the dedicated space 10B is formed on a predetermined floor of the structure 10.

  As shown in FIG. 2, the floor 16 is formed in a rectangular shape in plan view. In the common space portion 10A (floor slab 16A) at the center of the floor portion 16, for example, a partition wall 20 made of RC or the like is provided. The partition wall 20 is formed in a rectangular frame shape in plan view, and partitions the common space 20A. The shared space 20A is, for example, a communication space such as a conference room, an exhibition hall, a break room, and an exhibition hall. The partition wall 20 is appropriately formed with openings such as windows and doorways.

  Further, a void (opening) 22 for daylighting and ventilation is formed in the center of the common space 20A. The void 22 is formed in a rectangular shape, and the steel column 12 is erected at each corner. A dedicated space portion 10B is provided on the outer periphery of the common space portion 10A with a corridor (corridor) 24 therebetween.

  The dedicated space portion 10 </ b> B has four room units 30 and is provided on the outer peripheral portion of the floor portion 16. The four room units 30 are provided in a “B” shape in plan view along the outer periphery of the floor 16.

  Note that arrows X and Y shown in FIG. 2 indicate two horizontal directions orthogonal to each other, and are arranged along the horizontal side and the vertical side of the floor 16, respectively. Hereinafter, for convenience of explanation, the room unit 30 disposed along the arrow X direction is referred to as a room unit 30X, and the room unit 30 disposed along the arrow Y direction is referred to as a room unit 30Y. The room unit 30X and the room unit 30Y are examples of the first unit and the second unit.

  The four room units 30 </ b> X and 30 </ b> Y are formed in a rectangular shape in plan view, and are arranged annularly along each side of the floor 16. These room units 30X and 30Y are connected to each other via the floor portion 16 (floor slab 16B) so as to be able to transmit seismic force.

  Each of the room units 30X and 30Y includes an outer peripheral wall 32A and 32B formed in a rectangular frame shape in plan view, and a plurality of partitions that divide the outer peripheral walls 32A and 32B into a plurality of rooms 34 in the longitudinal direction of the room units 30X and 30Y. The door-side earthquake-resistant wall 36 is provided.

  As shown in FIG. 3, the outer peripheral walls 32 </ b> A and 32 </ b> B and the doorway earthquake-resistant wall 36 are formed of wall-shaped precast concrete. These outer peripheral walls 32A and 32B and the door-side earthquake-resistant wall 36 are joined to each other via a filler such as mortar and grout, and cast-in-place concrete. Moreover, in this embodiment, the opening 38, such as a window and an entrance / exit, is formed in 32 A of outer peripheral walls along the longitudinal direction of room unit 30X, 30Y. A sash or the like is fitted in the opening 38 in advance in a factory or the like from the viewpoint of workability.

  The plurality of door-side earthquake-resistant walls 36 are disposed along the short direction of the room units 30X and 30Y and are disposed to face the longitudinal direction of the room units 30X and 30Y. The room units 30 </ b> X and 30 </ b> Y are partitioned into a plurality of rooms 34 by these door-side earthquake-resistant walls 36. Each room 34 is used, for example, as a dwelling unit (house) of a collective housing, a guest room of a hotel, a hospital room, a living room of an elderly care facility, or the like.

  Here, the construction surface 40B (the outer peripheral wall 32B and the doorway earthquake-resistant wall 36) along the short direction of the room units 30X and 30Y is basically open. Therefore, in each room unit 30X, 30Y, it is easy to ensure the rigidity in the short direction. On the other hand, the openings 38 such as windows and doorways are formed in the composition surface 40A (outer peripheral wall 32A) along the longitudinal direction of the room units 30X and 30Y as described above. Therefore, it is difficult to secure the rigidity in the longitudinal direction in each of the room units 30X and 30Y.

  Therefore, in the present embodiment, a composition surface (hereinafter referred to as “low-rigidity composition surface”) 40A along the longitudinal direction of one adjacent room unit 30X (room unit 30Y) is connected to the other room unit 30Y (room) The plurality of room units 30X and 30Y are joined (arranged) so as to be reinforced by a surface (hereinafter referred to as “highly rigid surface”) 40B along the short direction of the unit 30X).

  Specifically, the adjacent room units 30X and 30Y are arranged in a state in which the ends are opposed to each other so that the respective longitudinal directions intersect (orthogonal) each other. Then, the low-rigidity construction surface 40A (outer peripheral wall 32A) along the longitudinal direction of one adjacent room unit 30X (room unit 30Y) and the short direction of the other adjacent room unit 30Y (room unit 30X). Further, the high-rigidity construction surface 40B (the outer peripheral wall 32B and the door-side earthquake-resistant wall 36) is arranged to be continuous.

  The low-rigidity construction surface 40A of one adjacent room unit 30X (room unit 30Y) and the high-rigidity construction surface 40B of the other room unit 30Y (room unit 30X) adjacent to each other are low. Not only when the rigid structural surface 40A and the high-rigidity structural surface 40B are arranged on the same plane, but within the range where the low-rigidity structural surface 40A and the high-rigidity structural surface 40B can transmit the seismic force, each surface It is a concept that includes a case where they are displaced in the outward direction. In the present embodiment, a corridor 25 is formed between the end portions of the adjacent room units 30X and 30Y.

  Further, in the present embodiment, the plurality of room units 30X and 30Y are arranged such that the low-rigidity surface 40A of each room unit 30X and 30Y is reinforced by the high-rigidity surface 40B of other adjacent room units 30X and 30Y. It is arranged in a bowl shape (four bowls) in plan view.

  Next, the operation of this embodiment will be described.

  According to the structure 10 according to the present embodiment, the floor 16 is provided on a predetermined floor of the structure 10. A dedicated space portion 10B is provided on the outer peripheral portion (floor slab 16B) of the floor portion 16. The dedicated space portion 10B is provided with a plurality of room units 30X and 30Y arranged in a “B” shape along the outer periphery of the floor portion 16. By enclosing the central portion (floor slab 16A) of the floor portion 16 with these room units 30X and 30Y, the users (occupants) of the room units 30X and 30Y can use (share) the central portion. A shared space portion 10A is formed.

  Adjacent room units 30X and 30Y are connected to each other via the floor 16 (floor slab 16B). Thereby, at the time of an earthquake, seismic force is mutually transmitted between the room units 30X and 30Y which adjoin via the floor part 16. FIG.

  Here, the adjacent room units 30X and 30Y are arranged in a state in which the ends are opposed to each other so that the respective longitudinal directions intersect each other. As a result, the low-rigidity structural surface 40A along the longitudinal direction of one adjacent room unit 30X (room unit 30Y) is replaced with the high-rigidity structural surface along the short direction of the other adjacent room unit 30Y (room unit 30X). Reinforced by surface 40B. Therefore, the seismic performance of the structure 10 can be improved while ensuring the wide opening 38 in the low-rigidity structural surface 40A of each room unit 30X, 30Y.

  As described above, in this embodiment, it is possible to secure the shared space portion 10A that can be shared by the plurality of room units 30X and 30Y while securing the earthquake resistance of the structure 10.

  Further, by arranging a plurality of room units 30X and 30Y along the outer periphery of the floor portion 16 in a "B" shape, the door-side earthquake-resistant wall 36 as an earthquake-resistant element can be placed in two horizontal directions (arrow X direction, arrow Y In a well-balanced direction). Therefore, the seismic performance of the structure 10 is further improved.

  Further, in the present embodiment, a plurality of room units 30X and 30Y are provided along the dedicated space portion 10B of the floor portion 16, and the doorway earthquake-resistant wall 36 as an earthquake-resistant element is aggregated in these room units 30X and 30Y. Moreover, the seismic element of the common space part 10A formed in the center part of the floor part 16 can be reduced. Thereby, 10 A of common space parts with high plan freedom can be ensured in the center part of the floor part 16, ensuring the seismic performance of the structure 10. FIG.

  Moreover, in this embodiment, the room units 30X and 30Y have a wall-type concrete structure. In this wall-type concrete structure, since the four sides of the room 34 are basically surrounded by RC walls, it is easy to ensure rigidity as compared with a general ramen structure. Further, since the wall-type concrete structure does not have a column type or a beam type, each room 34 in the room units 30X and 30Y can be expanded. In other words, since the low-rigidity structural surface 40A along the longitudinal direction in the room units 30X and 30Y is configured by the wall pillars and wall beams, each room 34 in the room units 30X and 30Y can be expanded.

  Thus, in this embodiment, by using the wall-type concrete structure for the room units 30X and 30Y, it is possible to effectively use the dedicated space portion 10B while improving the earthquake resistance.

  Further, by forming the outer peripheral walls 32A and 32B and the door boundary earthquake resistant wall 36 constituting the room units 30X and 30Y with precast concrete, it is possible to improve the workability while improving the earthquake resistance.

  Next, a modification of the above embodiment will be described.

  In the above-described embodiment, an example in which a plurality of room units 30X and 30Y are arranged in a “B” shape in plan view along the outer peripheral portion of the floor portion 16 has been shown, but the arrangement of the room units 30X and 30Y is not limited thereto. Not exclusively. For example, as shown in FIG. 4, three room units 30 </ b> X and 30 </ b> Y may be arranged in a “U” shape in plan view along the outer periphery of the floor 16. In this case, a common space portion 10A that is surrounded on three sides by the three room units 30X and 30Y can be formed at the center of the floor portion 16. Note that the three room units 30X and 30Y shown in FIG. 4 may be arranged in a bowl shape in plan view.

  Moreover, although the room unit 30X and 30Y showed the example made into the wall-type concrete structure in the said embodiment, room unit 30X and 30Y may be made into a ramen structure and good also as a steel frame structure. Moreover, in the said embodiment, although the example which made the center part of the structure 10 steel structure was shown, 10 A of common space parts of the structure 10 may be RC structure. Furthermore, the void 22 provided in the shared space portion 10A of the structure 10 can be omitted as appropriate.

  Further, a temporary void (temporary opening) for installing a heavy machine (a tower crane, a rough terrain crane, etc.) for constructing the dedicated space unit 10B or the room unit 30 is formed in the shared space unit 10A, and the dedicated space unit 10B or After the construction of the room unit 30, the void part of the floor or beam may be post-constructed. Thereby, the workability of the dedicated space unit 10B and the room unit 30 is improved. Further, when the temporary void portion is a steel frame, post-construction of the void portion is facilitated.

  As mentioned above, although one embodiment of the present invention was described, the present invention is not limited to such an embodiment, and one embodiment and various modifications may be used in combination as appropriate, and the gist of the present invention will be described. Of course, various embodiments can be implemented without departing from the scope.

DESCRIPTION OF SYMBOLS 10 Structure 10A Common space part 10B Dedicated space part 16 Floor part 16A Floor slab 16B Floor slab 20A Common space 30X Room unit (1st unit, 2nd unit)
30Y room unit (second unit, first unit)
34 Room 36 Boundary earthquake-resistant wall

Claims (1)

The floor,
A dedicated space part that is provided along the outer periphery of the floor part and surrounds a shared space part formed in the center part of the floor part;
With
The dedicated space part is
A first unit having a plurality of rooms partitioned by a boundary earthquake-resistant wall;
A second unit having a plurality of rooms partitioned by a boundary earthquake-resistant wall, extending in a direction intersecting with the first unit, and connected to the first unit via the floor;
Having
Structure.