JPH05125827A - Pillar form structure - Google Patents

Abstract

PURPOSE:To dispense with a process for form removing works and surface finish of backing furring strips and the like and to shorten a term of works by fixing a reinforcing material to the outer surface of the form and making reinforcements backing furring strips to fix a decorating material to the furring strips after placing and hardening concrete. CONSTITUTION:Forms 21, 43 are provided around a concrete pillar 13A placing region and a form reinforcing material 100 provided with wooden brick 103 is fixed to the outer surface of the forms 21, 43 of disposable forms. Next, after the forms 21, 43 are reinforced against the lateral pressure of concrete to be placed, concrete is placed. After the completion of installation for hardening, the reinforcing material 100 is used for backing furring strips. Next, a dressing material 102 is fixed to the backing furring strips. Also, unit buildings joining the pillar, floor beam and ceiling beam are built adjacent to each other in the horizontal and vertical directions and the disposable forms are provided between a plurality of pillars of the adjacent building units. Thus, a term of works for high-rise unit buildings can be shortened to reduce the cost of construction by using such forms for the unit buildings.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pillar formwork structure suitable for use in, for example, constructing a high-rise unit building having a reinforcing bar or a steel frame reinforced concrete structure.

[0002]

2. Description of the Related Art Conventional pillar formwork structures are
As described in Japanese Patent No. 187, there is used one in which molds are arranged around a concrete column placing area, and the molds are surrounded by a reinforcing material.

When placing a concrete column using the above-mentioned column formwork structure, (1) a process of placing a formwork and a reinforcing material and placing concrete, and (2) placing concrete A step of waiting for the hardening of the concrete, (3) a step of removing the reinforcing material and the formwork after the completion of the step of setting, (4) a step of constructing the foundation furring around the cast concrete column, and (5) the foundation And a step of fixing the decorative material around the furring edge.

[0004]

However, in the prior art, after the placement of the poured concrete is completed, the step of removing the reinforcing material and the form (above (3)), and the step of reinforcing the base furring (see above (4) )) Is required and the construction process is too large.

An object of the present invention is to reduce the number of construction steps when placing concrete columns and applying a decorative material around the placed concrete columns.

[0006]

The present invention according to claim 1 is a pillar formwork structure in which a formwork is installed around a concrete pillar placing area, and the formwork is used as a waste formwork. Is fixed to the outer surface of the mold, the mold is reinforced against the lateral pressure of the cast concrete, and a mold reinforcing member serving as the base furring of the decorative material is provided.

The present invention as set forth in claim 2 is constructed by arranging building units each of which is a box-shaped frame structure in which columns, floor beams and ceiling beams are joined in a horizontal and vertical direction. A pillar formwork structure for a unit building, in which a formwork is installed in a plurality of pillar gaps around a space between pillars, and the formwork forms a waste formwork for placing concrete in the space between pillars. The mold is fixed to the outer surface of the mold to reinforce the mold against the lateral pressure of the cast concrete, and is provided with a mold reinforcing material serving as a base furring of the decorative material.

According to a third aspect of the present invention, in addition to the first or second aspect of the present invention, the formwork reinforcing material is disposed so as to surround the outer periphery of the formwork, and is provided with a wooden brick. It is the one.

[0009]

The operation of placing a concrete column using the column form structure of the present invention is as follows (1) to (3).

(1) A step of installing a formwork, fixing a reinforcing material to the outer surface of the formwork, and placing concrete. (2) A stationary process that waits for the setting concrete to harden. (3) A step of fixing the decorative material around the base furring strip by using the reinforcing material as the base furring strip after the installation is completed.

That is, according to the present invention, there are the following actions (1) to (3). The formwork reinforcing material has both the reinforcing function against the lateral pressure of the poured concrete and the base function of the decorative material. For this reason,
After the placement of the placed concrete is completed, the conventional reinforcement material,
There is no need to remove the formwork and make up the furring on the base.
The number of construction steps can be reduced significantly.

By using the present invention as a pillar formwork structure for a unit building, the construction period and cost of a high-rise unit building can be greatly reduced.

By providing wooden bricks as the frame reinforcing material, the decorative material can be securely and easily attached to the wooden bricks.

[0014]

EXAMPLE FIG. 1 is a schematic diagram 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 diagram showing an outer unit, FIG. 4 is a schematic diagram showing a column unit, and FIG. Is a schematic diagram showing a girder unit, FIG. 6 is a schematic diagram showing a beam-column joining unit, FIG. 7 is a plan view showing a unit arrangement state of a high-rise unit building, and FIG. 8 is a schematic diagram showing concrete columns.

The unit building 10 is shown in FIGS. 1 (A) to 1 (E).
As shown in the figure, on the foundation, as a plurality of building units,
The inner unit 11 forming the interior space of the building and the outer unit 12 forming the outer peripheral portion of the building are adjacently arranged in the horizontal and vertical directions. And the unit building 10
As described later in detail, the adjacent inner units 1
1. The column unit 13 arranged in the inter-column region of the outer unit 12, the girder unit 14 arranged in the inter-beam region, the column unit 13 and the girder unit 14.
By concrete is poured into each of the beam-column joining units 15 arranged in the intersection region, the RC rigid frame including the concrete column 13A and the concrete beam 14A is configured.

The inner unit 11 is shown in FIG.
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 which are joined to the upper ends of the pillars 21 by bolts 4
It is a box-shaped skeleton configured with a steel plate ceiling beam 25 of a book. In addition, the inner unit 11 is carried into the construction site after the floor slab 26, the floor base 27, the ceiling joist 28, the ceiling board 29, the interior of the water supply / drainage, the photothermal wiring, the piping communication equipment, etc. are applied in the factory. Installed.

The outer unit 12 is, as shown in FIG.
It is a skeleton body having a steel plate column 31 and a steel plate beam 32, and is exteriorized such as an outer wall 33 and an opening 34 in a factory, and then carried into a construction 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 which are concave with respect to the inter-column region. Both ends of the L-shaped cross sections of the columns 21 and 31 are provided with bending engaging portions 21A that can engage with both-end bending engaging portions 43A of an auxiliary mold 43 of the column unit 13 described later.

The column unit 13 is shown in FIG.
As shown in (B), a pipe 41 made of steel pipe that penetrates through the central portion of the cross section is provided, and column reinforcements 42 that allow concrete to be placed are provided around the pipe 41. Also,
The column unit 13 includes the adjacent inner units 11 and
The outer unit 12 is provided with a steel plate auxiliary mold 43 installed in a plurality of pillar gaps around the inter-columnar region, and the opposing auxiliary molds 43, 43 are connected to each other by a splice 44. The joint bar 44 is welded to a steel bar reinforcing rib 45 which is welded to each auxiliary form 43.

Here, the column reinforcements 42 of the column unit 13
Is a column main bar 46 extending in the column longitudinal direction, a reinforcing bar 47 arranged so as to surround each column main bar 46, and the above-mentioned joint line 4.
4 and. The auxiliary mold 43 is provided with bending engaging portions 43A at both ends so that it can be engaged with the bending engaging portions 21A of the columns 21 and 31.

That is, in the unit building 10, the pillar 2 of the inner unit 11 and the outer unit 12 which are adjacent to each other.
1, 31 and the auxiliary formwork 43 installed in the space between the columns form a scrap formwork for placing the concrete column 13A on the column unit 13.

The girder unit 14 is shown in FIG.
As shown in (B), it is provided with a beam reinforcement 51 capable of placing concrete. Further, the girder unit 14 includes steel plate auxiliary molds 52 and 53 installed in a plurality of beam gaps around the inter-beam regions of the adjacent inner unit 11 and outer unit 12, and the auxiliary molds on the opposite side surfaces are opposed to each other. 5
The two and 52 are connected to each other by a conduit pipe 54, and the auxiliary formwork 53 on the bottom surface is supported by the splice lines 55 of the beam arrangement 51. The auxiliary formwork 52 is the floor beam 2 of the upper floor inner unit 11.
3 and the ceiling beam 25 of the lower inner unit 11 are installed in the beam gap, and the auxiliary formwork 53 is installed in the beam gap of the ceiling beams 25 of the left and right inner units 11. In addition, line pipe 5
4. The joint line 55 is welded to each auxiliary formwork 52, 53.

Here, the beam reinforcement 5 of the girder unit 14
1 is a beam main bar 56 extending in the beam longitudinal direction and each beam main bar 56
It is composed of a reinforcing bar 57 which surrounds the above and the above-mentioned connecting bar 55. The auxiliary form 52 has a bent portion 52A on the ceiling beam 25 of the lower inner unit 11 at the lower end, and a bent portion 52B that supports the floor beam 23 of the upper inner unit 11 at the upper end. Also, the auxiliary formwork 5
3 is provided with bending engaging portions 53A at both ends, and can be engaged with the bending engaging portions 25A of the ceiling beam 25.

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

The column-beam joining unit 15 is shown in FIG.
As shown in (B), it is provided with a steel pipe intermediate pipe 61 that penetrates through the central portion of the cross section, and is provided with a column reinforcing bar 62 and a beam reinforcing bar 63 in which concrete can be placed.

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

The inner units 11, which are vertically adjacent to each other,
When the column unit 13 of the outer unit 12 is joined by the beam-column joining 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 column-beam joining unit 15 as shown in FIG. 4C. Can communicate. At this time, the upper ends of the pipes 41 and 61 are straight, whereas the lower ends of the pipes 41 and 61 are in the receiving portion 68.
As will be described later, the pipe 41, 61 is less likely to adhere and remain with the concrete to be pumped in the pipe 41, 61,
In addition to the straight shape of the upper end portion of 61, the lower end portion of the pipes 41 and 61 that are easily fitted to the upper end portions of the pipes 41 and 61 on the lower floor side are provided.

A method of constructing the unit building 10 will be described below. (1) An inner unit 1 in which a plurality of inner units 11 and outer units 12 are suspended on a foundation to form one layer
1. The outer unit 12 is horizontally adjacently arranged (see FIG. 1A and FIG. 7).

(2) The column unit 13 is arranged so as to be inserted into the inter-column region of the columns 21 and 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) Ceiling beam 2 of inner unit 11 and outer unit 12 in which girder units 14 are arranged adjacent to each other
5 and 32 are arranged in the inter-beam region (see FIG. 1C).

(4) The column-beam joint unit 15 is arranged in the intersection region of the column unit 13 and the girder unit 14.
At this time, the pipe 61 lower end receiving portion 68 of the column-beam joining unit 15 is fitted into the upper straight portion of the pipe 41 of the column unit 13. In addition, the column main bar 46 of the column unit 13 and the column main bar 64 of the column-beam joining unit 15 are welded,
Beam main bar 5 of girder unit 14 joined with a special joint
6 and the beam main reinforcement 66 of the beam-column joining unit 15 are welded and joined by a special joint.

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

(6) Inner units 11 arranged adjacent to each other,
The pillars 21 and 31 of the outer unit 12 and the ceiling beam 2 on the lower floor
5 and 32 and upper floor floor beams 23 and 32 are scrap frames, and auxiliary molds 43, 52 and 53 provided in the column unit 13 and the girder unit 14 are scrap frames, and a column unit for one layer 13 and the girder unit 14 are poured with concrete to form concrete columns 13A and concrete beams 14A. At this time, the pipe 41 of the column unit 13 on the upper and lower floors is connected to the column-beam joining unit 15 of (4) above.
Are connected to each other through a pipe 61 of the pipe, and the concrete is the pipe 41 of the column unit 13 in the lowermost layer.
It is filled from the lower part and is placed around the pipe 41 of the column unit 13 which is the placement floor this time, the girder unit 14, and the beam-column joining unit 15 (see FIG. 1D).

The duct 69 is connected to the conduit pipe 54 provided in the girder unit 14 before or after the concrete pouring in (6) above (see FIG. 1 (E)).

(7) The above steps (1) to (6) are repeated for each floor of the unit building 10. In addition, in the unit building 10, the inner unit 11 and the outer unit 1 that are adjacent to each other
It is not necessary to arrange the column units 13 in all the inter-pillar regions of No. 2, and the column units 13 may not be arranged in some of the inter-pillar regions (inter-pillar 21 inter-regions shown by broken lines in FIG. 7). .. In that case, at the stage of securing the structural strength of each floor by completing the concrete pouring on each floor,
The pillar 21 of the column unit 13 can be removed to obtain a large living room space or the like. The pillar 21 can be removed by removing the bolts 22 and 24 from the joint between the floor beam 23 and the ceiling beam 25.

In addition, in the unit building 10, it is not essential to pour concrete for each floor, but the column unit 13 and the girder unit 14 for a plurality of floors (all floors may be used). , It is also possible to place concrete at once.

However, according to the present invention, when constructing the concrete pillar 13A described in (6) above, the form reinforcement material 100 as shown in FIG. 8 is used.

The formwork reinforcement material 100 is a pillar 2 which becomes a scrap formwork.
1. The auxiliary mold 43 is arranged so as to surround the outer periphery of the auxiliary mold 43 and is fixed to the column 21 by the set screw 101. (a) The mold (21) is reinforced against the lateral pressure of the cast concrete, and (b) the makeup. It becomes the base furring strip of the material (inner wall material) 102.

The reinforcing member 100 is made of channel steel and has a wooden brick 103 on the inner surface of the channel. The decorative material 102 can be nailed and fixed to the wooden brick 103. Wooden brick 10
3 is fixed in advance from the back surface of the reinforcing material 100 with a countersunk screw, or is fixed from the upper outer surface or the lower outer surface of the reinforcing material 100 with a countersunk screw.

In the embodiment of the present invention, since the column 21 and the auxiliary mold 43, which are the scrap molds, are fixed by the reinforcing material 100, the connecting line 44 for connecting and reinforcing the opposing auxiliary molds 43 is Not necessarily required.

Therefore, the steps of placing the concrete columns 13A using the column form structure of the present invention are as follows (1) to (3).

(1) The molds 21 and 43 are installed, and the mold 2
A step of fixing the reinforcing material 100 to the outer surfaces of Nos. 1 and 43 and pouring concrete.

(2) A stationary step of waiting for the setting concrete to harden. (3) After the installation is completed, the reinforcing material 100 is used as the base furring strip,
A step of fixing the decorative material 102 around the base furring strip.

That is, according to the present invention, the following actions (1) to (4) are provided. The formwork reinforcing material 100 has both a reinforcing function against the lateral pressure of the poured concrete and a base function of the decorative material 102. Therefore, after the placement of the cast concrete is completed, the conventional reinforcing material, the process of removing the formwork, and the process of applying the base furring strip are unnecessary, and the number of construction steps can be greatly reduced.

By using the present invention as the pillar formwork structure for the unit building 10, the construction period and the construction cost of the high-rise unit building 10 can be greatly reduced.

Since the formwork reinforcing material 100 is provided with the wooden bricks 103, the decorative material 102 becomes the wooden bricks 103.
It can be attached securely and easily.

In the practice of the present invention, the unit building 10 does not necessarily use the beam-column joining unit 15. When the column-beam joining unit 15 is not used, the structure shown in FIG.
As shown in (D), the column reinforcements 42 of the column unit 13 are provided with the column reinforcements 71 that are joined to the column reinforcements 46 of the column units 13 that intersect with each other, and the beam reinforcements 56 of the girder unit 14 that intersect with each other. Beam main bar 72 to be joined
And will be equipped.

[0048]

As described above, according to the present invention, it is possible to reduce the number of construction steps when placing concrete columns and applying a decorative material around the placed concrete columns.

[Brief description of drawings]

FIG. 1 is a schematic diagram 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 diagram showing an outer unit.

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

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

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

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

FIG. 8 is a schematic view showing a concrete column.

[Explanation of symbols]

 10 Unit Building 11 Inner Unit (Building Unit) 13A Concrete Column 21 Column (Form) 23 Floor Beam 25 Ceiling Beam 43 Auxiliary Form (Form) 100 Form Reinforcing Material 102 Decorative Material 103 Wood Brick

Claims (3)

[Claims] 1. In a pillar formwork structure in which a formwork is installed around a concrete pillar placement area and the formwork is used as a waste formwork, the formwork is fixed to the outer surface of the formwork, and the formwork is made of concrete. A pillar formwork structure comprising a formwork reinforcement material that reinforces against lateral pressure and serves as a base furring strip of a decorative material. 2. A plurality of building units, which are constructed by horizontally and vertically adjoining building units composed of a box-shaped frame structure in which columns, floor beams, and ceiling beams are joined, are provided around the inter-column region of adjacent building units. A pillar formwork structure for a unit building in which a formwork is installed in a pillar gap, and the formwork constitutes a waste formwork for placing concrete in the inter-column area, and is fixed to the outer surface of the formwork. A column formwork structure comprising a formwork reinforcement member that reinforces the formwork against the lateral pressure of the cast concrete and serves as a base furring strip of a decorative material. 3. The pillar formwork structure according to claim 1, wherein the formwork reinforcing material is provided so as to surround the outer periphery of the formwork, and comprises a wooden brick.