JP2006037649A - Frame structure of apartment house - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a frame structure of an apartment house, which prevents the length of a party wall from being limited, while being equipped with the advantage of preventing the protrusion of a column and a beam into a living space. <P>SOLUTION: In the apartment house 10 wherein a plurality of dwelling units are juxtaposed on each floor, a frame 30, which comprises the column 13 and the beam 12, composed of a steel-frame concrete structural member, is erected in the state of facing both outer peripheral surfaces, in a longitudinal direction in a plan view, of the apartment house 10; a plurality of studs 15, 15... are erected between the columns 13 and 13, arranged in an opposed state, along the party wall between the dwelling units 11 and 11; binders 14, 14... are continuously provided between the studs 15 and 15 and between the stud 15 and the column 13; and a slab floor 40 is formed on an almost horizontal plane which is formed of the beam 12 and the binder 14 on each floor. On different boundaries in the direction of a main reinforcement of the slab floor 40, a binder 16 is laid between the studs 15 and 15 almost in parallel with the beam 12. The studs 15 are arranged inside the party wall, and the binders 14 and 16 are embedded in the slab floor 40. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a frame structure of an apartment house.

Conventionally, the column-frame ramen structure has been common for low-, medium- and high-rise housing as the housing structure of apartment buildings. In the column ramen structure, the columns and beams resulting from the seismic and wind resistant structural design are exposed to the interior and form irregularities on the walls and ceiling, so that there is a problem that the formation of a free space tends to be an obstacle.
Therefore, in recent years, column beam ramen structures have been adopted in high-rise housing due to problems such as strength, but in low- and medium-rise housings, because of the advantage of no beams or columns protruding into the living space, wall ramen structures and More and more cases have adopted a wall ramen structure.

  The above-mentioned wall-type ramen structure is a ramen structure consisting of wall-shaped columns and beams whose longitudinal direction is flat, and is composed of multi-story bearing walls in the short direction. There is no overhang, and it is possible to realize a cleaner interior space than a general ramen structure. Therefore, it is a structure suitable for making an apartment house with a high degree of freedom in the floor plan.

As an example of a wall-type frame structure, in Patent Document 1, a pair of load-bearing walls arranged in parallel to the beam-carrying direction and a long span-carrying load-proof strength arranged between each wall column facing the beam-carrying direction load-bearing wall. A living space is defined by a wall, and a girder direction bearing wall is provided in parallel with an interval on the outside of the girder direction bearing wall, and the dwelling space is composed of a girder direction bearing wall and a tension direction bearing wall. A wall-type frame structure has been proposed in which floor slabs such as spaces, hallways, and balconies are installed.
In this technique, a large living space without wall pillars and wall beams is formed, and partition planning and changes to hotels, office buildings, and the like can be freely performed. In addition, the inner and outer sides of the floor slab such as a corridor or veranda outside the frame are supported by a pair of beam-bearing direction bearing walls, and the frame support span is expanded. It has been.

Moreover, in patent document 2, in the apartment house of planar view substantially rectangular provided by adjoining each dwelling unit in the longitudinal direction, the floor slab which forms the floor of each floor is made into a flat plate structure, and in the short direction of an apartment house, Provided with a boundary wall composed of seismic walls that divide the dwelling units and pillars provided at both ends of the boundary wall, in the longitudinal direction of the apartment house, the boundary is located on the upper surface of the floor slab at the outer periphery of the apartment house. A wall-type ramen structure has been proposed in which reverse beams provided along a direction orthogonal to the wall and a plurality of beams provided at predetermined intervals on the reverse beam are provided.
In this technology, high earthquake resistance is ensured in the short direction of the apartment house by the door wall as the earthquake resistant wall. Further, in the longitudinal direction of the apartment house, a frame of a ramen structure is formed along the both side surfaces of the apartment house by the reverse beams of each floor and the columns on the reverse beams. Furthermore, in the longitudinal direction of the housing complex, a frame structure of a box ramen structure is constructed with the floor slab as a beam and the doorway wall as a column. These ramen structures greatly improve the earthquake resistance by increasing the longitudinal rigidity and strength of the housing complex.
Japanese Patent Laid-Open No. 5-247997 JP-A-8-254025

The wall-type ramen structure as described above has an advantage that no pillars or beams protrude into the living space. Therefore, the present invention proposes a frame structure for an apartment house that can realize prefabrication by a dry construction method while having the advantage that columns and beams do not protrude into the living space like a wall-type ramen structure. .
Moreover, when designing structures such as apartment buildings, structural calculations such as seismic performance are essential. Therefore, if the structural calculation can be simplified, it is possible to shorten the design time, which is preferable. Therefore, the present invention proposes a frame structure of an apartment house that can simplify the structural calculation.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, according to claim 1, in a housing complex in which a plurality of dwelling units are arranged in parallel on each floor, a frame composed of columns and beams made of a steel-concrete structural material made of H-shaped steel is used as a plan view of the housing complex. Standing in a state facing both outer circumferential surfaces in the longitudinal direction, between the columns arranged facing each other, a plurality of studs are erected along the boundary between the dwelling units, and between the studs and between the studs and the pillars. A slab floor is formed in a substantially horizontal plane formed by the beams and the small beams on each floor, and the studs are arranged inside the door wall, and the small beams are embedded in the slab floor. It is a frame structure of an apartment house.

  In Claim 2, the main reinforcement of a slab floor is arrange | positioned in the planar view longitudinal direction outer peripheral part of the said apartment house in parallel with the planar view short direction of an apartment house, and the main part of the slab floor of the remaining part is set of an apartment house. The beam is arranged parallel to the longitudinal direction in plan view, and a small beam is installed between the studs substantially parallel to the beam at a boundary in which the main reinforcement direction is different, and the small beam is embedded in the slab floor.

  According to a third aspect of the present invention, the outer peripheral end in the longitudinal direction of the apartment house of the slab floor is embedded in concrete filled between flanges of H-shaped steel constituting the beam.

  According to a fourth aspect of the present invention, braces are provided in a structural surface formed by the studs and the small beams.

  As effects of the present invention, the following effects can be obtained.

  In Claim 1, since a pillar and a beam do not protrude in living space, living property improves and the freedom degree of layout increases. Since the door boundary is provided with a stud and a small beam, it is possible to relax the restriction on the wall width of the door wall, and to increase the degree of freedom of the layout of the living space.

  In claim 2, the load applied to the slab floor is distributed and supported by the beams, columns, small beams, and inter-columns, the load is not concentrated in one direction, and the suddenly generated large load is a steel frame Since it bears with the pillar and beam which consist of a concrete structure material, it can be made small so that the cross section of a small beam and a stud can be embedded in a slab floor or a door wall.

  In Claim 3, a slab floor and a beam can be joined and a slab floor can be supported by a beam, without using a special connection member etc.

  In Claim 4, earthquake resistance can be provided in the planar view short direction of an apartment house.

Next, embodiments of the invention will be described.
FIG. 1 is a view showing an example of an apartment house adopting the frame structure according to the present invention, FIG. 2 is a perspective view showing the frame structure according to the embodiment of the present invention, and FIG. 3 is a frame structure according to the embodiment of the present invention. FIG.
4 is a view showing a cross section of a steel-concrete structural material, FIG. 5 is a view showing a joint between a beam and a column, and FIG. 6 is a cross-sectional view taken along the line XX in FIG.
7 is a side sectional view showing the structure of the slab floor, FIG. 8 is an enlarged side sectional view showing the structure of the slab floor, and FIG. 9 is a side sectional view showing the upper and lower floors.

As shown in FIGS. 1 to 3, the present invention relates to a frame structure in an apartment house 10 having a substantially rectangular shape in plan view, in which a plurality of dwelling units 11 having a substantially rectangular shape in plan view are provided side by side.
In the present embodiment, in each dwelling unit 11, a balcony part 21 is arranged on one side of the living part 22 in the horizontal direction, and a common corridor lower part 23 is arranged on the opposite side of the balcony part 21 through the living part 22. However, the configuration of the dwelling unit 11 is not limited to the present embodiment.
.., And a plurality of dwelling units 11, 11... Are arranged in the frontage direction, and each floor of the housing complex 10 is configured. This apartment house 10 has a substantially rectangular shape in plan view, and the longitudinal direction of the plan view is the frontage direction of the dwelling unit 11. In the apartment house 10, a balcony portion 21 is provided on the outer peripheral long side of one side in plan view, and the other side plane. A corridor portion 23 is disposed on the long side of the outer periphery of the view.
In addition, although the apartment house 10 according to the present embodiment has a plurality of floors, it may be a single floor and is not limited to the number of floors.

In the collective housing 10, both outer circumferential surfaces in the longitudinal direction of the collective housing 10 are constituted by frames (outer frames 30 and 30) composed of beams 12 and columns 13. That is, the outer frames 30 and 30 including the beams 12 and the pillars 13 are formed on the end surface on the balcony 21 side and the end surface on the corridor 23 side of the dwelling unit 11, respectively.
The outer frames 30 and 30 are arranged in parallel with each other facing each other, and the apartment house 10 is configured to be sandwiched between the outer frames 30 and 30 from both sides in the short side view in plan view. And the inner frame 29 is comprised between the outer frame 30 of the other side.

The outer frames 30 and 30 are ramen frames in which a plurality of beams 12 and columns 13 are assembled in a lattice shape in the vertical direction. The beam 12 and the column 13 are steel concrete structures formed by filling a steel frame made of H-shaped steel with concrete.
As shown in FIG. 4, the steel-concrete structural material constituting the beam 12 and the column 13 is made of an H-shaped steel 50 having a substantially H-shaped cross section in which flanges 50b and 50b are arranged so as to be substantially orthogonal to both ends of the web 50a. The concrete 24 is filled between the flanges 50b and 50b of the H-shaped steel 50. .. Are fixed to the web 50a of the H-shaped steel 50 in order to increase the fixing force of the concrete 24, and the cracks of the concrete 24 are cracked between the flanges 50b and 50b. In order to prevent this, mesh rebars 52 and 52 are provided.

As shown in FIGS. 5 and 6, the beam 12 and the column 13 are connected to the joining flange 12c provided at the end of the beam 12 and the column 13 main body by bolts 53, 53,. Are joined. In the beam 12 after joining, the flange 50b portion of the H-shaped steel 50 is covered with the refractory material 26. In addition, both the beam 12 and the column 13 are fire-resistant coated with concrete 24 filled between the flange 50b of the H-shaped steel 50 and the web 50a.
Accordingly, the outer frames 30 and 30 composed of the beams 12 and the columns 13 have fire resistance, so that the outer frames 30 and 30 can be exposed on the outer peripheral surface of the apartment house 10.
Therefore, in the apartment house 10 according to the present embodiment, as shown in FIG. 1, the outer frames 30 and 30 are exposed to the outer periphery of the apartment house 10 to form a lattice that floats on the outer peripheral surface. Is increasing.

  The inner frame 29 configured between the outer frames 30 and 30 includes the small beam 14, the inter-column 15, the small beam 16, and the like.

A plurality of inter-columns 15 are erected between the columns 13 and 13 facing each other in the short direction of the collective housing 10 at the boundary portion (door boundary portion) between the dwelling unit 11 and the dwelling unit 11 of the collective housing 10. .. Are provided so as to connect between the intermediate pillars 15 and 15 and between the intermediate pillar 15 and the pillar 13. In addition, braces 55, 55,... Are appropriately disposed on the structural surface formed by the small beams 14 and the inter-columns 15 and subjected to earthquake-proof reinforcement.
In this way, the earthquake-resistant brace frame in which the small beam 14, the inter-column 15 and the brace 55 are assembled in the vertical direction is arranged along the door boundary. And a wall panel is affixed on this frame, and a border wall is formed.

The small beam 14 is a steel beam and is made of H-shaped steel.
In addition, the inter-column 15 is a steel column that is provided in the upper floor from the second floor of the apartment house 10 and is made of H-shaped steel. The inter-column 15 of the first floor portion of the apartment house 10 is a steel concrete column. Consists of H-shaped steel and concrete. In addition, the inter-column 15 of all the floors of the apartment house 10 can also be made into a steel frame concrete column.

  The floor provided in each dwelling unit 11 in the apartment house 10 is a slab floor 40 having a substantially rectangular shape in plan view that extends from the balcony portion 21 to the living portion 22 to the corridor lower portion 23. The slab floor 40 is configured in a substantially horizontal plane formed by the beams 12 and the small beams 14 on each floor. It is supported.

The slab floor 40 is a void slab floor in which a void block 35 is provided in the living unit 22 to form a void. Since the void slab floor is reduced in weight by the void block 35 without deteriorating the structural performance, it is possible to eliminate the need for the pillars and small beams that support the floor in each dwelling unit 11.
As shown in FIGS. 3, 7, and 8, in the living unit 22, the main bars 36 and the void blocks 35 are arranged such that the longitudinal direction thereof is substantially parallel to the longitudinal direction of the apartment house 10.
Moreover, in the balcony part 21 and the corridor lower part 23, the main reinforcement 36 is arrange | positioned so that the longitudinal direction may turn into a direction substantially parallel to the transversal direction of the housing complex 10. FIG. In addition, in the balcony part 21 and the corridor lower part 23, the structure of the slab floor 40 appears substantially symmetrically.

The main reinforcing bar 36 is formed by connecting an upper reinforcing bar 31 and a lower reinforcing bar 32 provided in parallel in the vertical direction by a connecting bar 33. A block fixing bar 34 for fixing the void block 35 is arranged in a direction substantially orthogonal to the main bar 36.
Furthermore, in the living part 22, the void block 35 is disposed between the adjacent main bars 36 and 36 so that the longitudinal direction thereof is substantially parallel to the longitudinal direction of the main bar 36 and is fixed by the block fixing bars 34. . On these reinforcing bars and void blocks, upper end bars 37 arranged in a net shape are arranged, and concrete is laid to form a slab floor 40.

  In addition, the small beams 16 and 16 which consist of H-shaped steel are constructed between the studs 15 and 15, and this small beam 16 and 16 is the boundary of the balcony part 21-residential part 22 in each dwelling unit 11, and the residential part 22-corridor. It arrange | positions in the boundary of the part 23, ie, the boundary in which the reinforcement arrangement | positioning direction of the main reinforcement 36 differs in the slab floor 40, respectively.

In the slab floor 40 described above, the ends of the main bars 36 of the balcony 21 and the corridor 23 on the side of the living unit 22 are supported by the lower flanges of the small beams 16 and 16. Thereby, as for the slab floor 40 of the balcony part 21 and the corridor lower part 23, the edge part by the side of the residence part 22 is supported by the small beams 16 * 16.
In addition, the peripheral portion of the slab floor 40 is inserted into the concrete filled in the beam 12 substantially parallel to the flange of the beam 12, and the peripheral portion of the slab floor 40 is embedded between the upper and lower flanges of the beam 12. Connected in state. The slab floor 40 and the beam 12 are joined without using a special connecting member or the like. Thereby, the peripheral part of the slab floor 40 of the balcony part 21 and the corridor lower part 23 is supported by the beam 12.
Moreover, in the living part 22, since the bar arrangement direction of the main reinforcement 36 of the slab floor 40 is the longitudinal direction of the apartment house 10, the load applied to the slab floor 40 of the living part 22 is a small beam provided in the door boundary part. 14 and the stud 15.

  As described above, the small beam 16 provided between the balcony portion 21 or the corridor lower portion 23 and the living portion 22 does not bear the load of the slab floor 40 of the living portion 22, and Since the peripheral portion of the slab floor 40 is supported by the external frames 30 and 30 including the beams 12 and the pillars 13, the beam 16 may bear a part of the load on the slab floor 40 of the balcony portion 21 or the corridor lower portion 23. .

Moreover, in the living part 22, by setting the longitudinal direction of the apartment house 10 as the main reinforcement direction, no intermediate beam is provided in the living space, and the vertical load applied to the frame via the slab floor 40 is the boundary part. It will be borne by the small beam 14 and the stud 15 provided in.
When the ground rolls during an earthquake or the like, the force applied to the frame in the horizontal direction is via the slab floor 40 and the pillars 13, 13,... And the beams 12, 12,. -It is borne by the outer frame 30/30.
That is, in the living part 22, daily loads are mainly borne by the small beams 14 and the studs 15, and large loads applied in an emergency are borne by the outer frames 30 and 30.

Therefore, the cross section of the small beam 16 can be made small enough to be embedded in the slab floor 40.
In addition, the cross-section of the small beam 14 can be made small enough to be embedded in the slab floor 40, and the cross-section of the stud 15 is embedded in the boundary wall provided in the door boundary. It can be as small as possible.

Therefore, the small beams 14 and 16 have a cross section that is small enough to be embedded in the slab floor 40, and the stud 15 has a cross section that is small enough to be embedded inside the wall.
And the small beams 14 and 16 are provided in the state embed | buried in the slab floor 40, and the stud 15 is arrange | positioned inside the door wall (not shown) provided in a door boundary part. Each of the small beams 14 and 16 and the stud 15 is made of H-shaped steel, so that the cross-section is further miniaturized, and the H-shaped steel is flattened in the door wall or slab floor. It can be made easy to be embedded in

In this way, the pillars and beams protruding from the living space in each dwelling unit 11 are eliminated, and the rigidity as the frame can be maintained.
Since a plurality of inter-columns 15 can be arranged between the columns 13 and 13, the restriction on the wall width of the doorway wall can be relaxed, and the degree of freedom of the layout of the living space of the apartment house 10 can be further increased. Yes.

As described above, the frame structure according to the present invention is an apartment house 10 in which a plurality of dwelling units 11 and 11 are arranged in parallel on each floor, and both sides of the apartment house 10 in the longitudinal direction in plan view are steel-framed concrete structural materials. The outer frame 30 and 30 is composed of the beam 12 and the column 13, and a frame in which the small beam 14 and the inter-column 15 made of H-shaped steel are assembled between the outer frames 30 and 30 in a substantially vertical direction There are several alongside.
Further, a balcony portion 21 is provided on one side of the apartment house 10 in the short side direction in plan view, a corridor part 23 is provided on the other side in the short side direction in plan view, and a living part 22 is provided between the balcony part 21 and the corridor part 23. Thus, small beams 16 and 16 are installed between the studs 15 on the boundary between the balcony portion 21 and the living portion 22 and the boundary between the living portion 22 and the corridor lower portion 23, substantially parallel to the longitudinal direction of the apartment house 10.
And the slab floor 40 which continues in the balcony part 21-residential part 22-corridor 23 is provided, and while the slab floors 14 and 16 are embed | buried in this slab floor 40, it is a pillar in the doorway wall provided in the doorway part. 15 is buried.

  By adopting the frame structure according to the present invention, as shown in FIG. 9, there is no pillar or beam protruding inside the living space, so that the living space can be used effectively and the degree of freedom in space design is increased. be able to. Moreover, since there is no small beam protruding inside the living space, the ceiling height 45 of the living space and the opening height 44 between the balcony portion 21 and the living portion 22 can be made large, so that the living property is good and the lighting is provided. It becomes possible to make a design that is superior to the view.

  Furthermore, since the frame structure is simple, factory production of members and simplification of formwork are easy, and quality, workability, and economy can be improved. If the steel-concrete structural material is precast, the construction period can be shortened. Thereby, it can be set as the industrialized house which employ | adopted the prefabrication construction method which carries and assembles the member manufactured in the factory beforehand to the field.

Further, by adopting the frame structure according to the present invention, the structural calculation of the building of the apartment house 10 can be simplified. In the frame structure according to the present invention, the vertical load applied to the frame is borne by the intermediate column 15, and the horizontal load is borne by the external frame 30 including the column 13 and the beam 12. Therefore, since the member which bears it can be clarified according to the direction of the force acting on the housing, the structural calculation becomes easy.
Furthermore, if the standards of the studs 15 and the small beams 14 are unified, the number of the studs 15 and the small beams 14 can be determined only by setting the scale of the apartment house 10, and the structural calculation can be performed based on this.

The figure which shows an example of the apartment house which employ | adopted the frame structure which concerns on this invention. The perspective view which shows the frame structure based on the Example of this invention. The top view which shows the frame structure based on the Example of this invention. The figure which shows the cross section of a steel-frame concrete structural material. The figure which shows the junction part of a beam and a column. XX arrow sectional drawing in FIG. Side surface sectional drawing which shows the structure of a slab floor. The expanded side sectional view which shows the structure of a slab floor. Side surface sectional drawing which shows the mode of an up-and-down floor.

Explanation of symbols

10 Housing 12 Beam 13 Column 14 Beam 15 Space 16 16 Beam 30 Outer frame 40 Slab floor 55 Brace

Claims (4)

In an apartment house with multiple dwelling units on each floor,
A frame composed of columns and beams made of steel-concrete structural material with H-shaped steel as a steel frame is erected in a state facing both outer peripheral surfaces in the longitudinal direction of the apartment house,
Between the pillars arranged opposite to each other, a plurality of studs are erected along the boundary between the dwelling units, and a small beam is continuously provided between the studs and between the studs and the pillars.
Form a slab floor on a substantially horizontal plane formed by beams and small beams on each floor,
Arranging the studs inside the door wall and burying the small beam in the slab floor,
The frame structure of the housing complex. In the plan view longitudinal direction outer periphery of the apartment house, the main bars of the slab floor are arranged in parallel with the short side direction of the apartment house in plan view,
The main part of the slab floor of the remaining part is placed parallel to the longitudinal direction of the apartment house,
At the boundary where the main reinforcement direction is different, construct a small beam between the studs substantially parallel to the beam, and embed the small beam in the slab floor.
The frame structure of an apartment house according to claim 1. The slab floor is embedded in the concrete filled between the flanges of the H-shaped steel constituting the beam, in the plan view longitudinal outer peripheral end of the apartment house,
The frame structure of an apartment house according to claim 1 or 2. A brace is provided in the construction surface formed by the stud and the beam.
The frame structure of an apartment house according to any one of claims 1 to 3.