JP2727263B2 - Formwork unit 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 method of forming a frame unit in a skeleton construction of a reinforced concrete building.

[0002]

2. Description of the Related Art Conventionally, reinforced concrete buildings have been limited to low-rise buildings. However, in recent years, the use of high-strength concrete has led to the rise of reinforced concrete buildings, as seen in the case of HiRC housing and the like. It is getting. Against this background, industrialization has been progressing mainly with the PC method in order to rationalize the construction work of reinforced concrete buildings.

[0003]

However, when a building is made high-rise, the PC method cannot be often adopted for structural reasons or the like. In addition, since the PC method has a very heavy member weight, if a unit larger than the current member (for example, for one dwelling unit) is used, a new problem arises in terms of transportation and lifting.

[0004] The present invention has been devised in view of the above circumstances, and an object of the present invention is to form a high-level unit (ultra-large unit) of only a formwork in a skeleton construction of a reinforced concrete building, and to form the mold. An object of the present invention is to provide a formwork unit construction method that saves labor and rationalizes a formwork.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a column formwork panel, a beam formwork panel, and a floor form made of a material to be a surface material of a skeleton in a skeleton construction of a reinforced concrete building. A frame panel is provided, the plurality of column form panels are vertically extended at intervals from each other, and the beam form panels are horizontally extended between upper end portions of the column form panels. The floor form panel is horizontally extended over the upper surfaces of the panel and the beam form panel to form a unit form assembled in a predetermined unit in advance, and the unit form is sequentially erected at a predetermined position of the frame by a crane. In this method, the lower end portions of the column form panels of each unit form are connected to the frame, and the unit forms are connected to each other one after another. Further, in the present invention, in the unit formwork, the column formwork panel, the beam formwork panel, and the floor formwork panel are connected to each other by bolts, and adjacent unit formworks are connected to each other by bolts, Further, the beam form panel has a hinged opening / closing lid.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a plan view showing a state where a unit formwork is built on site in a formwork unit method according to the present invention, and FIG. 2 is a longitudinal sectional view thereof. 1 and 2, U is a unit formwork according to the present invention, 1 is a column formwork panel, 3 is a beam formwork panel, and 5 is a floor formwork panel.

The column form panel 1 is made of an L-shaped thin PC board, the beam form panel 3 is also made of an L-shaped thin PC board, and the floor form panel 5 is made of a flat thin PC board. Here, the form material may be an FRC (fiber reinforced concrete) plate or the like in addition to the PC plate of the embodiment. In essence, the form material has the strength necessary for the form material and is left as it is to form the surface material of the skeleton. Whatever is required. The formwork panels 1, 3, and 5 for columns, beams and floors described above are standardized as much as possible and manufactured at the factory.
By transporting it to the site, assembling it in units of a predetermined span to form a large unit, and sequentially arranging the unit forms U on the construction floor, a formwork for one floor can be easily assembled.

That is, in the embodiment, the unit form U
Are vertically spaced pillar-shaped panel panels 1, 1, 1, 1 made of L-shaped thin PC boards at four corners spaced apart from each other, and four sides extending horizontally and coupled between the upper ends thereof. L-type thin PC
Beam form panels 3,3,3,3 made of planks and a flat floor form panel 5 extending horizontally and connected to the inside of the upper surface thereof. It consists of two synthesized thin PC boards. Then, as shown in FIG. 3, the column form panel 1 and the beam form panel 3 are joined together by the inserts 7 and the bolts 9, and similarly, the column form panel 1, the floor form panel 5, and the beam form The panel 3 and the floor form panel 5 are also joined. The above assembly unitization is performed at the site plant at the site. At this time, in order to prevent deformation during construction, minimal temporary reinforcement (joining material, bracing, etc.) is performed.

The above-mentioned unit formwork U is constructed on a construction floor by a crane (not shown) one unit at a time as described later, and the lower end of the column formwork panel 1 is placed on the floor concrete 11 as shown in FIG. The L-shaped fixing bracket 13 is used to connect the column form panel 1 with the insert 15 and the bolt 17 and the floor concrete 11 with the hole-in anchor 19 and the bolt 21. As for the adjacent unit form frames U, U, as shown in FIGS. 5 and 6, the adjacent column form panels 1, 1 are connected to the flat joint fittings 23,
By using 23, each is connected to each other by inserts 25, 25 and bolts 27, 27, and the bottom plates of the adjacent beam form panels 3, 3 are also connected.

Here, in order to join the unit reinforcement of the beam at the center of the beam span, hinges 29, 29 are used at the center of the side plate portion of the beam form panel 3 as shown in FIGS. A cover 4 is provided, and reinforcement is provided on both sides by support posts 33, 33. That is, the lower hinge 29,
An opening / closing lid part 4 is provided through 29, and after the joining of the unit reinforcing bars of the beam, the opening / closing lid part 4 is connected to the joint fittings 31, 31 and 31.
31 and 31 are fixed in a closed state by bolt connection. On both sides of the opening / closing lid 4, the bottom plates of the adjacent beam form panels 3, 3 are supported by the support posts 33, 33.
According to the position of the stop pin 35, the flange 39 at the upper end of the pipe 37, which can be adjusted upward and downward, is bolted to the bottom plate portions of the adjacent beam form panels 3, 3.

Next, the order of construction of the frame of the HiRC house will be described with reference to FIGS. FIG. 9 shows the installation and joining of the column reinforcement unit, that is, the unit reinforcement 45 of the column is erected at a predetermined position on the floor concrete 11 via a wire 43 to a hook 41 of a crane (not shown). The welding is performed, and the finishing material unit 47 is also lifted in advance. Next, as shown in FIG. 10, the wires 51, 51, 5 are placed on a plate 49 supported by the wires 43 of the hooks 41.
The unit form frames U are sequentially erected along the column reinforcement 45 along the column bars 45 via the first and the first 51, and the adjacent unit form frames U and U are joined together as described above. .

Then, as shown in FIG.
The wires 55, 5 are attached to the plate 53 supported by the wires 43 of FIG.
The beam unit reinforcing bars 57 are built into the beam form panel 3 via the members 5 and 55. Next, as shown in FIG. 12, as described above, the opening / closing lid 4 at the center of the beam form panel 3 side plate is opened, and the beam 61 is joined using the bogie 61.
The unit reinforcing bar 59 of the floor is built on the floor form panel 5 via the wire 41 on the hook 41, and appropriate equipment piping is also performed. After the above, as shown in FIG. 13, after closing the opening / closing lid 4, the concrete 6 is placed on the floor form panel 5, in the column form panel 1 and in the beam form panel 3.
Type 3.

As described above, since the frame work is performed using the form unit which is used as the surface material of the frame as it is, there is no support under the floor, and there is no work of assembling and dismantling the formwork on site, so that one block is required. Dry partition walls, unit baths, equipment piping, etc. can be packed and lifted by a crane. Here, the mold weight of one unit is about 7 tons in the case of a normal HiRC house (span 4.5m × 5.5m).
And typically used for the construction of HiRC homes.
Lifting is possible with a tower crane of 0 to 230 tm class.

In addition to the labor saving and industrialization of the formwork work, the unit construction by the pre-assembly method of the reinforcing bars and the adoption of the outer wall curtain wall, the inner wall dry panel, and the like are also used in combination with the structural work of the reinforced concrete building. The rationalization can be further achieved, that is, it can contribute to automation and unmanned construction in the skeleton construction of a reinforced concrete building.

[0015]

As is apparent from the above description, according to the formwork unit method according to the present invention, a column formwork panel, a beam formwork panel and a floor formwork panel made of a surface material of a skeleton of a reinforced concrete building. Are assembled in advance into a predetermined unit, and then the unit forms are sequentially erected at predetermined positions of the skeleton by a crane or the like and joined one after another. Assembly
Demolition work can be eliminated, so that labor saving and rationalization of skeleton construction of a reinforced concrete building can be achieved.

[Brief description of the drawings]

FIG. 1 is a plan view showing a state where a unit formwork is built on site in a formwork unit method according to the present invention.

FIG. 2 is a longitudinal sectional view of FIG.

FIG. 3 is a cross-sectional view showing a joint structure of a form panel forming a unit form.

FIG. 4 is a sectional view showing a column base fixing structure of the unit form.

FIG. 5 is a side view showing a joint structure between unit molds.

FIG. 6 is a sectional view of the same.

FIG. 7 is a side view showing an opening / closing mechanism of a reinforcing bar joint.

FIG. 8 is a sectional view of the same.

FIG. 9 is a diagram showing the installation and joining of column reinforcement units in accordance with the construction order of a HiRC house.

FIG. 10 is a view showing the installation and joining of the unit form.

FIG. 11 is a view showing the installation of the beam reinforcing unit.

FIG. 12 is a diagram showing beam reinforcement joining and floor reinforcement.

FIG. 13 is a view showing concrete casting.

[Explanation of symbols]

 U Unit formwork 1 Column formwork panel 3 Beam formwork panel 4 Opening / closing lid 5 Floor formwork panel 7, 15, 25 Insert 9, 17, 21, 27 Bolt 11 Floor concrete 13 Fixing bracket 19 Hole-in anchor 23, 31 Joining bracket 29 Hinge 33 Support bracket 45 Column reinforcement unit 57 Beam reinforcement unit 59 Floor reinforcement

Claims (4)

(57) [Claims] Claims: 1. In a skeleton construction of a reinforced concrete building, a column form panel and a beam formed of a material to be a surface material of the skeleton.
Formwork panels and floor formwork panels are provided, and the plurality of column formwork panels extend vertically at intervals from each other.
And the beam form panel between the upper ends of the column form panels.
Extend horizontally, and the column formwork panel and beam form
The floor formwork panel extends horizontally over the top surface of the formwork panel
Is not a unit mold to form assembled in advance predetermined units, the unit mold, the lower end of the column formwork panel of each unit mold is successively built up to a predetermined position of the skeleton by a crane
The frame unit construction method is characterized in that each of the unit forms is connected to each other one after another while being connected to the frame. 2. The method according to claim 1, wherein said column form panel, beam form panel and floor form panel are connected to each other by bolts. 3. The formwork unit method according to claim 1, wherein the unit formwork is connected to an adjacent unit formwork by bolts. 4. The formwork unit construction method according to claim 1, wherein the beam formwork panel has a hinged opening / closing lid.