JP2843286B2 - Concrete casting frame and concrete wall construction method using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete casting frame for forming a concrete wall by covering the outer periphery of a concrete casting area until the concrete is hardened, and a method of constructing a concrete wall using the same.

[0002]

2. Description of the Related Art Generally, when a caisson or the like used for a building wall, pillar, or underwater foundation is made of reinforced concrete, a reinforcing bar is assembled, and a concrete casting frame is formed around the reinforcing bar. The concrete is poured into.

[0003] By the way, concrete is cement,
Since it is a mixture of water, aggregate, and the like, if the falling distance of the concrete is, for example, 1.5 meters or more, each component of the concrete may be separated. For this reason, when making a wall of a certain height or more made of reinforced concrete, if the density of the reinforcing bars is so high that the concrete hose cannot be inserted between the reinforcing bars that compose the reinforcing bars, the height of the wall to be made can be increased at once. When surrounding with a concrete casting frame and trying to cast concrete from above, concrete may be separated.

Therefore, in the prior art, in the above case, for example, first, the concrete is covered with a concrete casting frame to a height at which the concrete does not separate, and concrete is poured from above, and thereafter, the concrete is further moved up. The part is covered with a concrete casting frame, and concrete is poured from above again.

[0005]

However, in the above prior art, since the concrete frame assembling step and the concrete placing step cannot be performed at the same time, the construction time of the wall surface becomes longer and the production cost increases. There is a problem that it is.

The present invention has been made in view of such conventional problems, and a concrete casting frame capable of shortening the construction time of a reinforced concrete wall and reducing the production cost. And a method for constructing a concrete wall surface.

[0007]

A concrete casting frame for achieving the above object has an inner surface (12a) in contact with concrete to be a concrete wall surface and an inner surface (12a).
a) and an outer surface (12b) serving as a back surface,
b) A frame (11) having a concrete inlet (13) penetrating from the side to the inner surface (12a) side, and a portion serving as a concrete wall faced from the concrete inlet (13) of the frame (11). A lid (21) that has an inner surface (22a) in contact with the concrete and an outer surface (22b) that is a back surface of the inner surface (22a), and covers the concrete inlet (13), and the concrete of the frame (11). A lid restrictor (30) for restricting the lid (21) is provided at a position for closing the insertion port (13).

Here, the concrete input port (13)
Is formed with an inner peripheral surface whose opening area gradually decreases as going from the outer surface side to the inner surface side of the frame (11), and the lid (21) is provided on the inner peripheral surface of the concrete inlet (13). It is preferable that an outer peripheral surface is formed to be in contact with the lid (21), and the outer diameter thereof gradually decreases from the outer surface side to the inner surface side. Note that the outer diameter of the outer peripheral surface of the lid (21) is defined as, for example, when the cross-sectional shape of the lid in a direction perpendicular to the direction from the outer surface to the inner surface of the lid is circular. This is the diameter of the circle, and the length of each side if it is rectangular.

Further, the concrete casting frame has a hose restraint (49) for fixing an outlet of a concrete hose for injecting concrete to a concrete inlet (13) of the frame (11). Is preferred.
Further, it is preferable that a leaking concrete tray (48) for receiving concrete that has not entered through the concrete inlet (13) of the frame (11) or concrete that has leaked through the concrete inlet (13) is provided.

In order to achieve the above-mentioned object, a method for constructing a concrete wall is described in advance in which a plurality of concrete casting standard frames (50, 60, 70, 80) each having an inner surface in contact with concrete to be a concrete wall. And an inner surface (12a) that is in contact with the concrete that becomes the concrete wall surface, and an outer surface (12b) that is the back surface of the inner surface (12a), and the concrete inlet (13) that penetrates from the outer surface side to the inner surface side. ) Is formed on the frame (1).
1) and an inner surface (22a) in contact with concrete at a portion to be a concrete wall facing the concrete inlet (13), and an outer surface (2) serving as a back surface of the inner surface (22a).
2b) and at least one concrete casting window frame (10) having a lid (21) for closing the concrete inlet (13) is prepared, and the maximum concrete falling distance is determined in advance. The concrete input port (1) of the concrete casting window frame (10) is located at a position not more than
The concrete placing window frame (10) is arranged so that 3) is located, and a plurality of concrete placing standard frames (50, 60, 7) are arranged.
0,80) Mutual and concrete casting standard frame (50,80)
60, 70, 80) and the concrete casting window frame (10) adjacent to cover the concrete casting area (2);
One or more concrete casting window frames (10, 10,...), The concrete casting window frame (10) located below.
When concrete reaches the concrete input port (13) and reaches the lower edge of the concrete input port (13), the concrete input port (13) is closed with a lid (2).
1), and further above the concrete casting window frame (10) located below, another concrete casting window frame (1).
0), concrete is introduced from the concrete inlet (13) of the other concrete casting window frame (10), and the concrete is placed further above the concrete casting window frame (10) located below. Without any other concrete casting window frame (10) and the standard concrete casting frame (50,
60, 70, 80), concrete is poured from above the concrete casting standard frame (50, 60, 70, 80) and concrete is poured over the entire concrete casting area (2). Then, when the concrete hardens,
The concrete casting concrete frame (50, 60, 70, 80) and the concrete casting window frame (10) are removed to form a concrete wall surface.

In the above description, the symbols in parentheses are as follows:
This is the sign of the corresponding part in the embodiment described below.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A concrete wall construction method according to one embodiment of the present invention will be described below.
In this embodiment, as shown in FIG. 9, a caisson 1 made of reinforced concrete having a height × length × width of 4 m × 25 m × 10 m is made. As shown in FIG. 8, concrete casting frames used for making the caisson 1 include a concrete casting window frame 10 and standard concrete casting frames 50, 60, 70, and 80.

As shown in FIG. 1, a concrete casting window frame 10 includes a frame 11 having a concrete inlet 13 formed therein, a lid 21 for closing the concrete inlet 13, and a cover 21 for introducing the concrete. And a lid restraining device 30 which is restrained by the mouth 13.

As shown in FIGS. 1 to 3, the frame body 11 has an inner surface 12a in contact with concrete serving as a concrete wall surface.
And an outer surface 12b serving as a back surface of the inner surface 12a,
A main frame plate 12 having an opening 13a forming a part of a concrete inlet 13 penetrating from the outer surface 12b to the inner surface 12a, and provided on an outer peripheral edge of the main frame plate 12 perpendicular to the main frame plate 12. Of the frame body 11 by connecting the input port forming plate 16 and the flange 14 with the flange 14, the input port forming plate 16 provided on the inner peripheral edge of the opening 13 a of the main frame plate 12 to form the concrete input port 13. And ribs 19 for increasing the strength.

As shown in FIG. 2, the main frame plate 12 has a square shape in this embodiment, and one side thereof is 300 mm. The opening 13a formed in the main frame plate 12 also
In this embodiment, it forms a square, one side of which is 180 mm. A flange 14 having a width of 55 mm is attached to the outer peripheral edge of the main frame plate 12, as shown in FIG. As shown in FIGS. 1 and 4, the flange 14 of the main frame plate 12 and the concrete casting standard frame 50,
A connector insertion hole 15 through which a connector 35 for connecting the connector 60, 70, and 80 is formed. The input port forming plate 16 forming the concrete input port 13 is provided on the inner peripheral edge of the opening 12c of the main frame plate 12 such that the opening area gradually decreases from the outer surface 12b side to the inner surface 12a side of the main frame plate 12. Is provided. Specifically, the input port forming plate 16
The opening 13a on the inner surface side of the main frame plate 12 and the opening 13a on the outer surface side of the main frame plate 12
b also has a square shape, and one side of the opening 13a on the inner surface side of the main frame plate 12 is 180 mm as described above, and one side of the opening 13b on the outer surface side of the main frame plate 12 is 200 mm.
In the input port forming plate 16, there is formed a restrictor insertion hole 17 through which a lid restrictor 30 for fixing the lid 21 closing the concrete input port 13 is fixed.

The lid 21 has a main surface 22a having an inner surface 22a in contact with concrete at a portion to be a concrete wall facing the concrete inlet 13 of the frame 11, and an outer surface 22b serving as a back surface of the inner surface 22a. A lid edge plate 26 provided on an outer peripheral edge of the main lid plate 22;
2 has a handle 29 provided on the outer surface 22b. The main lid plate 22 has the same shape as the opening 13a on the inner surface side of the main frame plate of the concrete input port 13 and forms a square, and the length of one side is 180 m, which is the same as the length of one side of the opening 13a.
m. The area of the portion surrounded by the lid edge plate 26 gradually increases from the outer surface side to the inner surface side of the main lid plate 22. It is formed to have the same size as the opening 13a on the inner side of the main frame plate of the concrete inlet 13 finally. When the lid body 21 is fitted into the concrete inlet 13 of the frame body 11,
A restrictor insertion hole 27 is also formed at a position corresponding to the restrictor insertion hole 17 formed in the input port forming plate 16 of the frame body 11.

As shown in FIGS. 1 and 3, the lid restrictor 30 includes an insertion portion 31 inserted into the restrictor insertion hole 27 of the lid 21 and the restrictor insertion hole 17 of the frame 11; 11 has a holding portion 32 for holding the insertion port forming plate 16 and the lid edge plate 26 of the lid 21.

As shown in FIG. 4, the concrete casting standard frame is composed of rectangular plate-shaped main frame plates 62 and 72 and this main frame plate 6.
Flanges 64, 74 provided on the outer peripheral edges of 2, 72
And ribs 69 and 79 connecting the flanges to each other to increase the strength of the frame. In the flanges 64 and 74 of the concrete casting standard frames, there are formed connecting tool insertion holes 65 and 75 through which the connecting tool 35 for connecting the concrete casting standard frames to each other or the concrete casting window frame 10 passes. . As shown in FIG. 8, the concrete placing standard frames 50, 60,...
First standard frame 50 and a second standard frame 60 of 300 mm × 1200 mm
And a third standard frame 70 of 300 mm x 1500 mm and 1500 mm x 100 mm
And a frame 80 for size adjustment. As described above, the sizes of the first, second, and third standard frames 50, 60, and 70 and the window frame 10 are each determined based on a fixed unit length, here, 300 mm. You can easily combine each other.

Although the name of the connecting member 35 is different, the shape thereof is the same as that of the lid restraining member 30, and as shown in FIG.
The connector insertion holes 15 of the flanges 14, 64, 74 of each frame,
It has an insertion portion 36 inserted into the frames 65 and 75, and a holding portion 37 for holding the flanges 14, 64 and 74 of each frame.

When the caisson 1 is actually constructed, first, a reinforcing bar is applied in the concrete casting area. Next, the concrete casting frames 10, 50, 60, 7 described above are used.
As shown in FIG. 8, the outer periphery of the concrete placing area 2 is covered with 0, 80. At this time, a plurality of dimension adjusting frames 80, 80,... Are arranged horizontally at the lowermost portion, a plurality of third standard frames 70, 70,. Are arranged in the horizontal direction, and a plurality of first standard frames 50, 50,.
... lined up. However, 1500mm from the vertical side of the caisson,
At each location 3000 mm apart, a frame 80
A second standard frame 60, a concrete casting window frame 10, a second standard frame 60, a concrete casting window frame 10, and a first standard frame 50 are arranged in this order from the bottom. In the process of arranging each concrete placing frame, the adjacent concrete placing frame is
As shown in (1), the flanges are brought into contact with each other, and the flanges are connected to each other by the connecting tool 35. In the above steps, the concrete inlet 13 of the concrete casting window frame 10 is not closed by the lid 21.

Concrete casting frames 10, 50, 60, 7
When the assembly of 0,80 is completed, the concrete hose 13 is inserted into the concrete inlet 13 of the lower concrete casting window frame 10 of the upper and lower concrete casting window frames 10 as shown in FIG. The concrete outlet 5 is inserted, and concrete is injected from the concrete hose 5 into the concrete casting area 2.

When the concrete reaches near the lower edge of the concrete inlet 13 of the lower concrete casting window frame 10, the concrete hose 5 is connected to the concrete inlet 1.
3 and remove the concrete inlet 13 from the lid 21
Close with. When closing the concrete inlet 13 with the lid 21, the handle 29 of the lid 21 is grasped and the main lid plate 2 of the lid 21 is held.
2 is pushed into the concrete input port 13 toward the concrete input port 13 side. In this process, the lid 21
Means that the outer peripheral surface of the lid edge plate 26 is
3, the main cover plate 22 of the cover body 21 reaches the opening 13a on the inner side of the main frame plate of the concrete input port 13 of the same size, in other words, the cover Inner surface 22a of main lid plate 22 of body 21 and frame 11
When the inner surface 12a of the main frame plate 12 is flush with
I can't push it any more. As described above, the lid 21 is formed so that the area of the portion surrounded by the lid edge plate 26 gradually decreases from the outer surface side to the inner surface side of the main lid plate 22, and the concrete inlet is formed. With respect to 13, since it functions as a wedge, as shown in FIG.
When the lid 21 is firmly pushed into the concrete inlet 13, there is no gap between the inner peripheral surface of the concrete inlet 13 and the outer peripheral surface of the lid 21, and the possibility that concrete leaks from between the two is very small. . When the concrete inlet 13 is closed by the lid 21, as shown in FIG.
1 restrictor insertion hole 17 and restrictor insertion hole 27 of lid 21
Then, the insertion portion 31 of the lid restraining device 30 is inserted through, and the lid margin plate 26 of the lid 21 and the frame 11 are held by the holding portion 32 of the lid restraining device 30.
The lid 21 is fixed to the concrete input port 13 by sandwiching the input port forming plate 16.

After the concrete inlet 13 of the lower concrete casting window frame 10 is closed, the outlet of the concrete hose 5 is inserted into the concrete inlet 13 of the upper concrete casting window frame 10 and the concrete hose is inserted. From 5, concrete is injected into the concrete placing area 2. Then, the upper concrete casting window frame 10
When the concrete reaches the vicinity of the lower edge of the concrete inlet 13, the concrete hose 5 is removed from the concrete inlet 13 and the concrete inlet 13 is closed with the lid 21 in the same manner as described above.

After the concrete inlet 13 of the upper concrete casting window frame 10 is closed, concrete is poured into the concrete casting area 2 from above the first standard frame 50. Thus, the concrete placing process is completed.

Incidentally, as described in the prior art, although slightly different depending on the component ratio of concrete, when the falling distance of concrete is, for example, 1.5 meters or more,
Concrete components may be separated from each other. However, in this embodiment, the concrete pouring holes 13 are provided at 1.5-meter intervals from the lower edge of the concrete pouring area 2, and concrete is poured into the pouring area 2 therefrom. Separation can be avoided.

Further, as described above, the concrete casting frame is constructed by incorporating the concrete casting window frame 10 having the concrete inlet 13 formed therein. Assembling process and concrete casting process,
There is no need to divide the process several times, these steps can be performed at once, and the caisson 1 can be manufactured in a short time and at low cost.

Next, a concrete casting cover 41, which is an accessory for more effectively utilizing the concrete casting window frame 10 described above, will be described with reference to FIGS. As shown in FIG. 5, the lid 41 for concrete casting is a cover 21 for the concrete casting window frame 10.
The same as the main cover plate 42 of the same shape and the same size as the main cover plate 22, and the main cover plate 42 at the time of driving similarly to the lid edge plate 26 of the cover 21 of the concrete casting window frame 10. A cover edge plate 46 for driving provided on the outer peripheral edge, a leaking concrete tray 48 provided on the main cover plate 42 for driving, and a hose restraining band (hose restraint) for restraining the concrete hose 5. Tool 49).

As shown in FIGS. 5 and 6, a hose insertion port 43 slightly larger than the size of the outlet of the concrete hose 5 is formed in the main cover plate 42 for casting.
Below the hose insertion port 43, a leaking concrete tray 48 having a semi-cylindrical shape and having a diameter slightly larger than the outer diameter of the concrete hose 5 is provided. The leaking concrete tray 48 is provided with a hose restraining band 49.

The concrete casting cover 41 is used when concrete is injected by the concrete hose 5 from the concrete inlet 13 of the concrete casting window frame 10. Specifically, first, before the concrete casting, the concrete casting cover 41 is inserted into the concrete input port 13 of the concrete casting window frame 10 in the same manner as the cover 21 of the concrete casting window frame 10. Fig. 6
As shown in FIG. 7, the lid 41 for concrete placement is fixed to the concrete inlet 13 with the lid restraining device 30. Next, with the concrete hose 5 placed on the leaking concrete tray 48, the concrete hose 5 is inserted into the hose insertion port 43, and the concrete hose 5 is fixed with the hose restraining band 49. Then, concrete is injected from the concrete hose 5 into the concrete casting area 2.

As described above, when the concrete casting cover 41 is used, the outlet of the concrete hose 5 is used as the hose insertion port 43, in other words, the concrete input port 1 is used.
3 can be fixed securely and easily. Further, since the concrete leaking tray 48 is provided below the hose insertion port 43, the concrete leaking from the outlet of the concrete hose 5 can be received when the concrete hose 5 is attached or detached. Can be prevented from being soiled with concrete. In this embodiment, the leaking concrete pan 48 is
It not only receives the leaked concrete but also has a function of supporting the concrete hose 5.

By the way, in this embodiment, the cover 41 for concrete casting is separately prepared, and the leaking concrete tray 48 and the hose restraining band 49 are provided thereon. May be provided on the frame 11 of the concrete casting window frame 10. Further, in the above embodiment, the size of each part of the various concrete casting frames is defined, but it is needless to say that the present invention is not limited to this.
Further, in the above embodiment, the caisson 1 made of reinforced concrete is made, but the present invention may be applied to, for example, the construction of a reinforced concrete building wall or pillar.

[0032]

According to the present invention, when a concrete casting frame is constructed by incorporating a concrete casting frame having a concrete casting port formed therein, concrete can be cast from the concrete casting port of the concrete casting frame.
In order to avoid concrete separation, both the concrete frame assembling process and the concrete placing process
There is no need to divide the process several times, these steps can be performed collectively, and the concrete wall surface can be formed in a short time and at low cost.

[Brief description of the drawings]

FIG. 1 is a perspective view of a concrete casting window frame as one embodiment according to the present invention.

FIG. 2 is a front view of a concrete casting window frame as one embodiment according to the present invention.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a perspective view of a concrete casting window frame and a concrete casting standard frame as one embodiment according to the present invention.

FIG. 5 is a perspective view of a concrete casting cover as one embodiment according to the present invention.

FIG. 6 is a front view of a concrete casting cover as one embodiment according to the present invention.

FIG. 7 is a sectional view taken along line VII-VII in FIG.

FIG. 8 is an explanatory view showing the arrangement of various concrete casting frames as one embodiment according to the present invention.

FIG. 9 is a perspective view of a reinforced concrete caisson to be made in an embodiment according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Caisson, 2 ... Concrete casting area, 5 ... Concrete hose, 10 ... Concrete hose, 10 ... Concrete window frame, 11 ... Frame body, 12 ... Main frame plate, 12a
... inner surface of the main frame plate, 12b ... outer surface of the main frame plate, 13 ... concrete input port, 14 ... flange of concrete casting window frame, 16 ... input port forming plate, 21 ... lid body, 22 ... main lid plate,
26 ... lid edge plate, 29 ... handle, 30 ... lid body restraint, 35 ...
Connecting tool, 41: cover for casting, 42: main cover plate for casting,
43: Hose insertion opening, 46: Cover edge plate for casting, 48: Leaked concrete tray, 49: Hose restraint band (hose restraint), 50: Concrete casting first standard frame, 60
... Concrete casting second standard frame, 70 ... Concrete casting third standard frame, 80 ... Concrete casting dimension adjustment frame.

Claims (6)

(57) [Claims] 1. A concrete casting frame which covers the outer periphery of a concrete casting area until concrete hardens and forms a concrete wall surface, wherein an inner surface in contact with concrete serving as the concrete wall surface and an outer surface serving as a back surface of the inner surface are provided. A frame body having a concrete input port penetrating from the outer surface side to the inner surface side, and an inner surface in contact with concrete of a portion to be the concrete wall face facing the concrete input port of the frame body; A lid having an outer surface serving as a back surface of the inner surface and closing the concrete input port, and a lid restricting device for restricting the lid at a position of the frame closing the concrete input port. A concrete casting frame, characterized in that: 2. The concrete casting frame according to claim 1, wherein the concrete input port has an inner peripheral surface whose opening area gradually decreases from the outer surface side to the inner surface side of the frame body. The lid is in contact with the inner peripheral surface of the concrete inlet,
A concrete casting frame, wherein an outer peripheral surface whose outer diameter is gradually reduced from the outer surface side to the inner surface side of the lid is formed. 3. The concrete casting frame according to claim 1, further comprising a hose restraint for fixing an outlet of a concrete hose for injecting the concrete to the concrete inlet of the frame. A concrete casting frame, characterized in that: 4. The concrete casting frame according to claim 1, 2 or 3, further comprising: a leaking concrete receiving tray for receiving concrete that has not entered through the concrete inlet of the frame or concrete that has leaked through the concrete inlet. A concrete casting frame, comprising: 5. The concrete casting frame according to claim 1, wherein said concrete insertion frame is formed with a hose insertion port which fits into said concrete input port and into which an outlet of a concrete hose for injecting said concrete can be inserted. A hose restraint for fixing the outlet of the hose to the hose insertion port, and a part of the concrete injected from the outlet of the concrete hose receives a part that did not enter inside from the hose insertion port. A concrete casting frame, comprising a concrete casting lid provided with a saucer. 6. A concrete wall construction method, wherein a plurality of concrete casting standard frames having an inner surface in contact with the concrete to be the concrete wall are prepared in advance, and the concrete in contact with the concrete to be the concrete wall is prepared. A frame having an inner surface and an outer surface that is a back surface of the inner surface, and having a concrete input port penetrating from the outer surface side to the inner surface side, and the concrete wall surface facing the concrete input port. A concrete casting window frame having an inner surface in contact with a portion of the concrete and an outer surface serving as a back surface of the inner surface and having a lid closing the concrete input port is prepared; The concrete input port of the concrete casting window frame is located at a position where the falling distance is equal to or less than a predetermined distance. As such, the concrete casting window frame is arranged, a plurality of the concrete casting standard frames, and the concrete casting standard frame and the concrete casting window frame are adjacent to each other to cover a concrete casting area. Of the one or more concrete casting window frames, the concrete is charged from the concrete input port of the concrete casting window frame located below, and when the concrete reaches the lower edge of the concrete input port, The concrete inlet is closed by the lid, and if there is another concrete casting window frame further above the concrete casting window frame located below, the concrete of the other concrete casting window frame From the input port, concrete is injected, and there is no other concrete casting window frame further above the concrete casting window frame located below and When there is the concrete casting standard frame, concrete is poured from above the concrete casting standard frame, concrete is poured into the entire concrete casting area, and when the concrete is hardened, the concrete casting is performed. A concrete wall construction method, wherein the concrete wall is made by removing the installation standard frame and the concrete casting window frame.