JP3045835B2 - Unit building and its construction method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a unit building suitable for constructing a high-rise unit building having a reinforced concrete structure or a steel reinforced concrete structure, and a method for constructing the unit building.

[0002]

2. Description of the Related Art Conventionally, as a unit building having a reinforced concrete structure or a steel reinforced concrete structure, there is one disclosed in Japanese Patent Publication No. 55-14217. This unit building is constructed by repeating the process of suspending and installing a reinforcing bar in the region between the side walls of the adjacently arranged building unit and then placing concrete in the region between the side walls over each floor.

[0003]

However, the prior art has the following problems. It is necessary to arrange concrete walls effectively in terms of structural strength, which imposes plan restrictions on the internal space of the building.

[0004] If the side wall material of the building unit is made to have enough strength to withstand the lateral pressure at the time of concrete casting, the unit weight becomes considerably large, which is disadvantageous in terms of material economy and lifting work.

[0005] A large reinforcing bar is suspended and installed in a region between the side walls of adjacent building units. The handling of the reinforcing bar is poor, and the workability is poor.

According to the present invention, when constructing a unit building having a reinforced concrete structure or a steel reinforced concrete structure, it is possible to increase the degree of freedom in planning the internal space of a building, suppress an increase in unit weight, and further improve the handling of constituent members. Aim.

[0007]

The present invention according to claim 1 is constructed by arranging horizontally and vertically a building unit composed of a box-shaped frame in which a column, a floor beam, and a ceiling beam are joined. In a unit building, a column arrangement is provided that is capable of placing concrete, and a column unit that is arranged in an inter-column area of an adjacent building unit and a beam arrangement that is capable of placing concrete is provided. And a girder unit disposed in a region between beams of the building unit.

According to a second aspect of the present invention, in the first aspect of the present invention, the columns of the adjacent building units and the auxiliary formwork installed in the gap between the columns are provided with concrete for the column units. Constructing a disposable formwork for casting
The beams of the adjacent building units and the auxiliary formwork installed in the gap between the beams constitute a disposable formwork for placing concrete in the garter unit.

According to a third aspect of the present invention, in the second aspect of the present invention, the column unit is connected to an auxiliary form for the column gap, and the garter unit is an auxiliary form for the beam gap. The formwork is connected.

The present invention described in claim 4 is the first to third aspects of the present invention.
In the present invention according to any one of the first to third aspects, the columns of the building unit may be formed of an L-shaped cross section that is concave with respect to the inter-pillar region.

[0011] The present invention described in claim 5 provides the invention according to claims 1-4.
In the present invention according to any one of the above, further, the building unit includes an inner unit forming an interior space of the building and an outer unit forming an outer peripheral portion of the building.

According to a sixth aspect of the present invention, there is provided a method of constructing a unit building constructed by arranging horizontally and vertically adjacent building units each having a box-shaped frame in which columns, floor beams and ceiling beams are joined. A step of horizontally arranging building units constituting one layer in a horizontal direction, a step of arranging column units having column arrangements in a region between columns of adjacently arranged building units, and a beam arrangement. Arranging the girder unit in the inter-pillar region of the adjacently arranged building unit;
A process in which concrete is cast in column units and girder units for one layer, using columns and beams of adjacently disposed building units as discarded frames, and the above process is repeated for each floor of the building. It is.

[0013]

According to the present invention, the following effects are obtained. RC ramen is constructed by placing concrete in each of the column unit arranged in the column space of the adjacent building unit and the girder unit arranged in the beam region.

Therefore, the degree of freedom in planning the internal space of the building can be increased as compared with the case where concrete is cast in the region between the side walls of the building unit.

The columns and beams of each building unit need only have the minimum strength before concrete is cast.
An increase in unit weight can be suppressed, and material economy and lifting workability can be improved.

[0016] Reinforcement units arranged between adjacent building units are classified into column units, which are pillar arrangement units, and girder units, which are beam arrangement units. And the workability can be improved.

[0017] The pillars of the building unit constitute a casting frame for placing concrete in the column unit, and the beams of the building unit constitute a casting frame for placing concrete in the girder unit. Thereby, the configuration for concrete placement is significantly simplified, the number of work steps for concrete placement can be significantly reduced, and workability can be improved.

An auxiliary formwork serving as a discarding mold for placing concrete in the column unit is connected to the column unit, and an auxiliary formwork serving as a discarding formwork for placing concrete in the girder unit is provided with the girder. -By being connected to the units, the column units are arranged in the inter-pillar area of the adjacent building units, and the girder units are arranged in the inter-beam areas of the adjacent building units, and simultaneously the column units and the girder units are arranged. Will be completed, and the construction for concrete placement will be significantly simplified.
In addition, the number of working steps for placing concrete can be significantly reduced, and workability can be improved.

Since the pillars of the building units are made of L-shaped cross-section members that are concave with respect to the inter-pillar area, the cross-sectional area of the inter-pillar area of the adjacent building unit, that is, the concrete casting area, is increased. Great structural strength can be secured,
High-rise buildings can be built.

By manufacturing an inner unit having an interior inside a building unit and an outer unit having an exterior exterior to the building unit in a factory, the number of work steps on site can be significantly reduced and the workability can be improved. .

Therefore, according to the present invention, according to each of the above, when building a high-rise unit building, the quality can be improved and the construction period and construction cost can be greatly reduced.

[0022]

FIG. 1 is a schematic view showing a construction procedure of a high-rise unit building, FIG. 2 is a schematic view showing an inner unit, FIG. 3 is a schematic view showing an outer unit, FIG. 4 is a schematic view showing a column unit, FIG. Is a schematic diagram showing a girder unit, FIG. 6 is a schematic diagram showing a beam-column joint unit, and FIG. 7 is a plan view showing a unit arrangement state of a high-rise unit building.

The unit building 10 is shown in FIGS. 1 (A) to 1 (E).
As shown in the above, on the foundation, as multiple building units,
The inner unit 11 that forms the interior space of the building and the outer unit 12 that forms the outer periphery of the building are arranged adjacently in the horizontal and vertical directions. And the unit building 10
As described in detail later, the adjacent inner unit 1
1. A column unit 13 arranged in a region between columns of the outer unit 12, a girder unit 14 arranged in a region between beams, a column unit 13 and a girder unit 14.
The concrete is cast into each of the beam-to-column joining units 15 arranged in the intersection area of, thereby forming an RC rigid frame including the concrete columns 13A and the concrete beams 14A.

The inner unit 11 is shown in FIGS.
As shown in (E), four steel plate columns 21 and four steel plate floor beams 2 joined to the lower ends of the columns 21 by bolts 22.
3 and 4 joined to the upper end of the column 21 by bolts 24
This is a box-shaped frame body including the steel plate ceiling beam 25. The inner unit 11 is provided with a floor slab 26, a floor base 27, a ceiling joist 28, a ceiling board 29, and an interior such as water supply / drainage, light / heat wiring, and piping / communication facilities, and is then carried into a construction site. Installed.

The outer unit 12 is, as shown in FIG.
It is a skeleton body including a steel plate column 31 and a steel plate beam 32. After an exterior such as an outer wall 33 and an opening 34 is provided at a factory, the frame is carried into a building site and installed.

Here, the columns 21 and 31 of the inner unit 11 and the outer unit 12 are made of L-shaped cross-section members that are concave with respect to the inter-column region. In addition, both ends of the L-shaped cross section of the columns 21 and 31 are provided with a bending engagement portion 21A that can engage with a both-end bending engagement portion 43A of the auxiliary mold 43 of the column unit 13 described later.

The column unit 13 is shown in FIG.
As shown in (B), a steel pipe 41 penetrating through the center of the cross section is provided, and a column reinforcement 42 capable of placing concrete is provided around the pipe 41. Also,
The column unit 13 includes an adjacent inner unit 11,
An auxiliary formwork 43 made of steel plate is provided around a column space of the outer unit 12 at a plurality of column gaps, and the opposing auxiliary formwork 43 is connected to each other by a connecting line 44. In addition, the joint bar 44 is welded to a reinforcing bar 45 made of a steel bar that is welded to each auxiliary form 43.

Here, the column reinforcement 42 of the column unit 13 is provided.
Are main reinforcements 46 extending in the longitudinal direction of the column, reinforcing reinforcements 47 disposed so as to surround the respective main reinforcements 46,
And 4. In addition, the auxiliary mold 43 is provided with a bending engagement portion 43A at both ends, and can be engaged with the bending engagement portions 21A of the columns 21 and 31.

That is, in the unit building 10, the pillars 2 of the adjacent inner unit 11 and outer unit 12
1, 31 and the auxiliary formwork 43 installed in the gap between the columns constitute a discarded formwork for placing the concrete column 13A into the column unit 13.

The girder unit 14 is shown in FIG.
As shown in (B), a beam arrangement 51 capable of placing concrete is provided. Further, the girder unit 14 is provided with auxiliary steel molds 52 and 53 installed in a plurality of beam gaps around a region between beams of the adjacent inner unit 11 and outer unit 12, and auxiliary molds on opposite side surfaces. 5
2 and 52 are connected to each other by a communication pipe 54, and an auxiliary form 53 on the bottom surface is supported by a joint 55 of the beam arrangement 51. The auxiliary formwork 52 is the floor beam 2 of the upper floor inner unit 11.
The auxiliary formwork 53 is installed in the beam gap between the ceiling beams 25 of the left and right inner units 11. In addition, the line pipe 5
4. The joint 55 is welded to each of the auxiliary formwork 52, 53.

Here, the beam reinforcement 5 of the girder unit 14
1 is a main beam 56 extending in the longitudinal direction of the beam;
, And the above-described connecting bar 55. In addition, the auxiliary mold 52 has a bent portion 52A mounted on the ceiling beam 25 of the lower floor inner unit 11 at the lower end, and a bent portion 52B for supporting the floor beam 23 of the upper floor inner unit 11 at the upper end. In addition, auxiliary formwork 5
Numeral 3 is provided with a bending engagement portion 53A at both ends, so that it can be engaged with the bending engagement portion 25A of the ceiling beam 25.

That is, in the unit building 10, the floor beams 2 of the adjacent inner unit 11 and outer unit 12
3. The ceiling beam 25, the beam 32, and the auxiliary formwork 52, 53 installed in the gap between the beams constitute a discarded formwork for placing the concrete beam 14A on the girder unit 14. .

The beam-column joining unit 15 is shown in FIG.
As shown in (B), a steel pipe intermediate pipe 61 penetrating the center of the cross section is provided, and a column reinforcement 62 and a beam reinforcement 63 capable of placing concrete are provided.

Here, the column reinforcement 6 of the beam-column joint unit 15 is provided.
2 is a column main reinforcement 64 extending in the column longitudinal direction;
And reinforcing bars 65 arranged so as to surround the The beam reinforcement 63 of the beam-column joint unit 15 is composed of a beam reinforcement 66 extending in the longitudinal direction of the beam, and a reinforcement 67 disposed so as to surround each beam reinforcement 66.

The upper and lower inner units 11,
When the column unit 13 of the outer unit 12 is joined by the beam / column joint unit 15, the pipes 41 of the column units 13 on the upper and lower floors are mutually connected via the pipe 61 of the beam / column joint unit 15 as shown in FIG. I can communicate. At this time, the upper ends of the pipes 41 and 61 are straight, whereas the lower ends thereof are
As described later, the pipe 41 is hardly adhered and remains on the concrete that is pumped through the pipes 41 and 61,
In addition to the straight shape at the upper end of the pipe 61, the lower end of the pipe 41, 61 is easily fitted to the upper end of the pipe 41, 61 on the lower floor side.

Hereinafter, a method of constructing the unit building 10 will be described. (1) A plurality of inner units 11 and outer units 12 are suspended on a foundation, and an inner unit 1 constituting one layer
1. The outer unit 12 is disposed adjacent to the horizontal direction (see FIGS. 1A and 7).

(2) The column units 13 are arranged so as to be inserted into the inter-pillar regions of the columns 21, 31 made of the L-shaped cross-section material of the inner unit 11 and the outer unit 12, which are arranged adjacent to each other (see FIG. 1B). ).

(3) The ceiling beams 2 of the inner unit 11 and the outer unit 12 in which the girder unit 14 is arranged adjacently
5 and 32 are arranged in the region between the beams (see FIG. 1C).

(4) The beam-column joint unit 15 is arranged at the intersection area between the column unit 13 and the girder unit 14.
At this time, the lower end receiving portion 68 of the pipe 61 of the beam-column joint unit 15 is fitted to the upper end straight portion of the pipe 41 of the column unit 13. Further, the column main reinforcement 46 of the column unit 13 and the column main reinforcement 64 of the beam-column joint unit 15 are welded,
Joined with a special joint, beam main reinforcement 5 of girder unit 14
6 and the beam main reinforcement 66 of the beam-column joint unit 15 are welded and joined by a special joint.

(5) Inner unit 1 constituting upper layer
1. The outer unit 12 is disposed adjacent to the upper part of the inner unit 11 and the outer unit 12 which are the lower layers of the above (1).

(6) The inner units 11, which are arranged adjacent to each other,
Pillars 21 and 31 of outer unit 12 and lower ceiling beam 2
5, 32 and the upper floor beams 23, 32 are discarded frames, and the auxiliary frames 43, 52, 53 provided in the column unit 13 and the girder unit 14 are discarded frames, and a column unit for one layer is provided. Concrete is cast into the girder unit 13 and the girder unit 14 to form concrete columns 13A and concrete beams 14A. At this time, the pipes 41 of the column units 13 on the upper and lower floors are connected to the column-beam joining unit 15 described in (4) above.
Are communicated with each other through a pipe 61 of the lower column unit 13.
Filled from the lower part, it is cast around the pipe 41 of the column unit 13 which is the casting floor, the girder unit 14 and the beam-column joint unit 15 (see FIG. 1 (D)).

A duct 69 is connected to the line pipe 54 provided in the girder unit 14 before or after the concrete casting (6) (see FIG. 1 (E)).

(7) The above (1) to (6) are repeated for each floor of the unit building 10. In the unit building 10, the adjacent inner unit 11, outer unit 1
It is not necessary to dispose the column units 13 in all the inter-pillar regions of No. 2 and the column units 13 may not be disposed in some of the inter-pillar regions (the regions between the pillars 21 indicated by broken lines in FIG. 7). . In that case, after the concrete placement of each floor is completed, at the stage where the structural strength of each level is secured,
By removing the column 21 of the column unit 13, a large living room space or the like can be obtained. In addition, the column 21 can be removed by removing the bolts 22 and 24 from the joint with the floor beam 23 and the ceiling beam 25.

In the unit building 10, it is not essential to cast concrete one layer at a time, and the column units 13 and the girder units 14 of a plurality of layers (or all layers) may be provided. Alternatively, concrete may be cast at once.

Next, the operation of this embodiment will be described. RC ramen will be constituted by casting concrete into each of the column unit 13 arranged in the column space of the adjacent inner unit 11 and outer unit 12 and the girder unit 14 arranged in the beam region. .

Therefore, the degree of freedom in planning the interior space of the building can be increased as compared with the case where concrete is cast in the region between the side walls of the inner unit 11 and the outer unit 12.

The columns 21, 31, and the beams 23, 25, 32 of each of the inner unit 11 and the outer unit 12 need only have the minimum strength before the concrete is cast, and the increase in the unit weight is suppressed. In addition, material economy and lifting workability can be improved.

The reinforcement arrangement units disposed between the adjacent inner unit 11 and outer unit 12 are classified into column units 13 which are column arrangement units and girder units 14 which are beam arrangement units. It is easy to handle and can improve workability.

The inner unit 11 and the outer unit 1
The second pillars 21 and 31 constitute a disposal frame for placing concrete in the column unit 13, and the inner unit 11 and
Since the beams 23, 25, and 32 of the outer unit 12 constitute a discarded frame for placing concrete in the girder unit 14, the configuration for placing concrete is significantly simplified, and concrete is placed. Can significantly reduce the number of work steps and improve workability.

An auxiliary formwork 43 serving as a discarding form for placing concrete in the column unit 13 is connected to the column unit 13 and serving as an auxiliary formwork serving as a disposal form for placing concrete in the girder unit 14. Since the frames 52 and 53 are connected to the girder unit 14, the column unit 13 can be connected to the adjacent inner unit 1.
1. For placing concrete in the column unit 13 and girder unit 14 at the same time as disposing it in the column region of the outer unit 12 and arranging the girder unit 14 in the region between the beams of the adjacent inner unit 11 and outer unit 12. Will be completed.
The construction for concrete placing is significantly simplified, and the man-hours for concrete placing can be significantly reduced.
Workability can be improved.

The inner unit 11 and the outer unit 1
Since the second pillars 21 and 31 are made of an L-shaped cross section that is concave with respect to the inter-column area, the cross-sectional area of the adjacent inter-column area of the inner unit 11 and the outer unit 12, that is, the concrete casting area And large structural strength can be secured, and a high-rise building can be constructed.

By manufacturing the inner unit 11 with the interior inside the building unit and the outer unit 12 with the exterior outside the building unit at the factory, the number of work steps on site can be significantly reduced, and the workability is improved. Can be improved.

Therefore, according to the present invention, according to each of the above, when constructing the high-rise unit building 10, the quality can be improved and the construction period and construction cost can be greatly reduced.

In the practice of the present invention, the unit building 10 does not necessarily require the use of the beam-column joint unit 15. When the beam-column joint unit 15 is not used, FIG.
As shown in (D), in the column arrangement 42 of the column unit 13, there is provided a column main bar 71 joined to the column main bar 46 of the column unit 13 intersecting with each other, and the beam main bar 56 of the girder unit 14 intersecting with each other. Beam main bar 72 to be joined
Will be provided.

[0055]

As described above, according to the present invention, when constructing a unit building having a reinforced concrete structure or a steel reinforced concrete structure, the degree of freedom in the plan of the internal space of the building is increased, the increase in the unit weight is suppressed, and the constituent members are further reduced. Can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a construction procedure of a high-rise unit building.

FIG. 2 is a schematic diagram showing an inner unit.

FIG. 3 is a schematic view showing an outer unit.

FIG. 4 is a schematic view showing a column unit.

FIG. 5 is a schematic view showing a girder unit.

FIG. 6 is a schematic view showing a beam-column joint unit.

FIG. 7 is a plan view showing a unit arrangement state of a high-rise unit building.

[Explanation of symbols]

 Reference Signs List 10 unit building 11 inner unit (building unit) 12 outer unit (building unit) 13 column unit 14 girder unit 21, 31 pillar 23 floor beam 25 ceiling beam 32 beam 43 auxiliary form 52, 53 auxiliary form

Claims (6)

(57) [Claims] 1. A column in which concrete can be cast in a unit building constructed by arranging horizontally and vertically a building unit composed of a box-shaped frame in which columns, floor beams and ceiling beams are joined. A column unit provided with a reinforcing bar and arranged in an inter-pillar region of an adjacent building unit, and a girder unit provided with a beam reinforcing bar capable of placing concrete and arranged in an inter-beam region of an adjacent building unit. A unit building comprising: 2. The pillars of the adjacent building units and the auxiliary formwork installed in the gap between the columns constitute a disposable formwork for placing concrete in the column unit, and The unit building according to claim 1, wherein the beams and the auxiliary formwork installed in the gap between the beams constitute a discarded formwork for placing concrete in the garter unit. 3. The unit building according to claim 2, wherein said column unit is connected to said auxiliary form for said column gap, and said garter unit is connected to said auxiliary form for said beam gap. 4. The unit building according to claim 1, wherein the pillar of the building unit is formed of an L-shaped section member that is concave with respect to the inter-pillar region. 5. The unit building according to claim 1, wherein said building units include an inner unit forming a building interior space and an outer unit forming a building outer peripheral portion. 6. A method for constructing a unit building constructed by arranging horizontally and vertically adjacent building units each having a box-shaped frame in which columns, floor beams, and ceiling beams are joined to each other. A step of horizontally arranging units, a step of arranging a column unit having column reinforcement in a region between columns of an adjacently arranged building unit, and a building in which a girder unit having beam reinforcement is arranged adjacently A step of arranging concrete in a column unit and a girder unit for one layer, using a column and a beam of a building unit disposed adjacent to each other as a discarding frame; A method for constructing a unit building, comprising repeating the above steps for each floor.