JPH07180367A - Movable roof for casting concrete - Google Patents

Abstract

PURPOSE:To improve work efficiecy and to retain an area for casting of concrete in a movable roof when concrete is cast, while rain water is kept from coming in, by preventing various kinds of ancillary devices required for casting concrete from colliding with each other. CONSTITUTION:A plurality of casting lines 10A-10D are set by rails 9A on the underside of a body 2 of roof supported by legs 4, and a compacting device 20 and a joint cutting device 30, which are suspended from the rails 9A and moved, are actuated and moved along the lines 10A-10D. The device 20 and the device 30 are operated so as not to run on a concrete casting surface L.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable concrete pouring roof for blocking rainfall on a concrete pouring surface.

[0002]

2. Description of the Related Art In the construction work of dam dam concrete, in order to prevent the deterioration of the material due to the mixing of rainwater into fresh concrete, do not place it when the rainfall exceeds the following conditions. It is set.・ With slump concrete (column block placement, expansion layer placement) Rainfall is 4 mm / hour or 20 mm / day ・ Zero slump concrete (RCD placement) Rainfall is 2 mm / hour or 10 mm / day A temporary roof is planned to be moved along with the progress of the pouring so that concrete can be poured even in the rain.

[0003]

When placing concrete, first, unload the fresh concrete conveyed by a dump truck onto the placing surface and level it appropriately, and then compact the concrete with a compacting device. After this, work such as joint cutting of the compacted concrete is performed with a joint cutting device. If these operations are performed under the moving roof, there is a high risk that the dump trucks and the above-mentioned devices will be crowded and a collision accident will occur. Therefore, it is necessary to pay special attention to it, resulting in a decrease in work efficiency. Further, since each device moves around in a narrow range, there is a problem that the placing surface to be placed from now on is roughened by these devices, and the splicing quality, that is, the construction quality is deteriorated.

The present invention has been made in view of the above circumstances. Collision between various incidental devices required for concrete pouring is avoided, work efficiency is improved, and the pouring surface is held to ensure construction quality. The purpose of the present invention is to provide a moving roof for concrete pouring, in which concrete is retained.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above object, and claim 1 is a movable roof for pouring concrete for blocking rainfall on a concrete pouring surface, A roof body covering the concrete placing surface and a leg portion fixed to the roof body and provided with moving wheels are provided, and the roof body is provided with moving means for covering substantially the entire area of the roof body. The moving means is characterized in that an auxiliary device for placing concrete, such as a compacting device for compacting concrete and a joint cutting device for jointing the compacted concrete, is suspended so as to be able to move up and down.

A second aspect of the present invention is a moving roof for concrete pouring, which is also used for blocking rainfall on the concrete pouring surface, and a roof main body covering the concrete pouring surface,
A leg portion fixed to the roof body and provided with wheels for moving, and a protruding roof fixed to the roof body and protruding laterally from the leg portion are provided. A moving means for covering is provided, and the moving means,
It is characterized in that auxiliary devices for concrete placing, such as a compacting device for compacting concrete and a joint cutting device for jointing the compacted concrete, are suspended so as to be able to move up and down.

According to a third aspect of the present invention, in the first or second aspect, the moving means includes a plurality of rails installed in parallel with each other and one of the rails or the auxiliary device for concrete pouring. And a movable rail which is provided so as to be separated from the fixed rail and movable in a direction intersecting with the fixed rail, and which is continuous with the fixed rail during the movement. It is characterized by being composed of and.

[0008]

According to the present invention, since the auxiliary equipment for concrete placing, such as the compacting device and the joint cutting device, is suspended by the moving means provided on the roof body, these devices are closely packed and collide with each other. The risk of collision with a dump truck or the like that unloads concrete is avoided, and the concrete placing surface is not roughened by the concrete placing auxiliary device. In addition, if the concrete is placed under the overhanging roof provided on the roof body, the legs of the roof body do not need to roughen the concrete placing surface. Further, the concrete pouring auxiliary device is provided so as to be separated from the fixed rail and movable in a direction intersecting with the fixed rail, and is moved by a movable rail continuous with the fixed rail during the movement. According to the configuration, the plurality of auxiliary equipment for concrete pouring can be moved to an arbitrary place by transferring the fixed rail and the movable rail.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 show the entire moving roof 1 of one embodiment. The moving roof 1 includes a roof main body 2 having a rectangular shape in plan view which covers a concrete placing surface L, and the roof main body 2.
It is mainly composed of leg portions 4 fixed to the four corners and having moving wheels 3, and moving means 5 and 5 provided on the roof main body 2. In this case, the moving means 5 and 5 move in the left and right directions in FIGS. 1 and 2. It is like this. In the following description, the forward direction of the movable roof 1 will be referred to as the left direction for the sake of convenience, and is indicated by an arrow (a).

In the roof body 2, beams 6 extending in a moving direction and a direction orthogonal to the moving direction are assembled in a rectangular shape.
The roof member 7 in the shape of a gable is supported by the structure, and a reinforcing member (not shown) is assembled. The leg portion 4 is composed of a pillar 8 that hangs down from the four corners of a beam 6 that is assembled in a rectangular shape, and the wheel 3 that is provided at the lower end of the pillar 8. The wheels 3 are provided with a drive device, and the entire movable roof 1 is self-propelled and moves. The wheels 3 are crawler wheels or rubber wheels to reduce the surface pressure.

On the beam 6, a plurality (five in this case) of fixed rails 9 which constitute the moving means 5 are arranged in parallel with each other at equal intervals. These fixed rails are made of H-shaped steel and extend along the moving direction of the movable roof 1 so that both flanges are horizontal and the web is vertical. A pair of adjoining fixed rails 9 is one driving line, and in this case, four driving lines are set (first to fourth driving lines 10A, 10B, 10C, 10D). The fixed rail 9 is bridged across the front and rear beams 6, and a discontinuous portion 11 which is a discontinuous portion is formed in the middle thereof. In other words, the fixed rail 9
It is composed of a long main rail 9a and a short sub rail 9b which is located on a straight line with a discontinuous portion 11 formed on the long main rail 9a.
On both sides in the width direction of the discontinuous portion 11, line moving rails 12 made of H-shaped steel extend orthogonal to the fixed rails 9. A set of two movable rails 13 moves along the line moving rail 12. The distance between the two movable rails 13 is the same as the distance between the fixed rails 9 arranged side by side, and the driving lines (not shown) along the line moving rails 12 cause the respective placing lines 10A to 10D.
A pair of rails 9 that move between the beams 6 and are continuous with the fixed rails 9 and are continuous between the front and rear beams 6 on the way.
A, that is, the placement lines 10A to 10D are configured.

On the rail 9A, a compacting device 20 for compacting the concrete C, which is an auxiliary device for placing concrete, and a joint cutting device 30 for jointing the compacted concrete C are moved along the rail 9A. It is suspended.

As shown in FIG. 3, the compaction device 20 vibrates a plurality of plate-shaped bar-shaped vibrators 23 arranged below the frame 21 in the front-rear, left-right and right directions by a hydraulic drive source 22 supported by the frame 21. The frame 21 is configured to be suspended by a wire 25 wound and unwound by a pair of left and right motors 24. The motor 24 is supported by the trolley beam 26.
Is a work rail 60 via a pair of left and right trolleys 26a.
Suspended in. One of the pair of left and right trolleys 26a is provided with a drive wheel 27 for moving along the work rail 60. Further, the work rail 60 is suspended from two rails 9A adjacent to each other via a pair of left and right trolleys 61a. The pair of left and right trolleys 61a are equipped with drive wheels 62 for moving along the rails 9A. The operation of the rod-shaped vibrator 23 of the compaction device 20, the raising and lowering of the wire 25 by winding and unwinding, and the operation of the drive wheels 27 and 62 are performed by the control board 28a fixed to the frame 21 and the relay board fixed to the trolley beam 26. Cable 2 to 28b
This is performed by the remote switch S1 connected via 9a. A drive power supply (not shown) for the motor 24 and the drive wheels 27, 62 is connected to a trolley bar arranged along the fixed rail 9 at the end of a cable 29b routed along the work rail 60. The motor 24 and the trolleys 26a and 61a constitute a part of the moving means 5 on the compaction device 20 side.

The joint cutting device 30, as shown in FIG.
The vibrating mechanism 32 supported by the frame 31 is configured to vertically vibrate the joint cutting plate 33 provided below the frame 31, and the frame 31 is a wire wound and unwound by a pair of left and right motors 34. Suspended at 35. The motor 34 is supported by a trolley beam 36, which is a pair of left and right trolleys 36.
It is attached to the work rail 70 via a. A drive wheel 37 for moving along the work rail 70 is attached to one of the pair of left and right trolleys 36 a. Further, the work rail 70 includes two rails 9 adjacent to each other via a pair of left and right trolleys 71a.
Suspended at A. The pair of left and right trolleys 71a are both driving wheels 72 for moving along the rail 9A.
Is installed. The joint cutting plate 33 of the joint cutting device 30
The operation of the control panel 38a fixed to the frame 31 and the relay panel 38b fixed to the trolley beam 36 are performed in the same manner as the compaction device 20. To the motor 3 and the drive wheels 37 and 72 (not shown) by a remote switch S2 connected to the cable 3a routed along the rail 9A.
The end of 9b is connected and supplied to a trolley bar arranged along the fixed rail 9. The motor 34 and the bracket 36a constitute a part of the moving means 5 on the joint cutting device 30 side.

The compaction device 20 and the joint cutting device 3
0 is a movable rail 13 for each pouring line 10
It can be moved arbitrarily to A-10D. That is, after the movable rails 13 are formed by connecting the movable rails 13 to the two fixed rails 9 of the placing line on which the compaction device 20 (joint cutting device 30) is suspended, the movable rails 13 are formed.
The compacting device 20 (joint cutting device 30) is moved to, and the movable rail 13 is moved along the line moving rail 12 to the two fixed rails 9 of the target different placement line.
With this, the compaction device 20 (joint cutting device 30) can be moved on the placing line.

Next, the operation of the movable roof 1 of the present embodiment having the above-mentioned structure and the effect based on it will be described below.

When placing concrete C on the concrete placing surface L during rainfall, the moving roof 1 is moved to the concrete placing surface L and covered with the roof main body 2, and the moving roof 1 Rightmost placement line 10A
The movable rail 13 is arranged at the same position, and the compacting device 20 and the joint cutting device 30 are arranged in this order from the front side at the rearmost end of the driving line 10A, that is, the rearmost end of the auxiliary rail 9b. At this time, these devices 20, 30 are raised. Next, the dump truck D unloads the fresh concrete C onto the concrete placing surface L corresponding to the lower side of the placing line 10A and levels it appropriately, and then the compacting device 20 is lowered to operate, and by the rod-shaped vibrator 23, Concrete C
While compacting, the compaction device 20 is moved forward. Following this, the joint cutting device 30 is lowered and operated to move the joint cutting device 30 forward while cutting the concrete C by the joint cutting plate 33.

Each device 2 up to the front end of the casting line 10A
When 0 and 30 move, the joint cutting device 30 is first retracted and moved to the movable rail 13, and the movable rail 13 is moved to the adjacent placing line 10B, and then the joint cutting device is moved to the last end of the placing line 10B. The auxiliary rail 9b is moved to the last end. Next, the movable rail 13 is returned to the driving line 10A, and the compacting device 30 is similarly positioned at the rear end of the driving line 10B and in front of the joint cutting device 30. With this, the preparation for placing on the placing line 10B is completed, then the fresh concrete C is unloaded on the concrete placing surface L below the placing line 10B, and the compacting device 20 and the joint cutting are performed in the same manner as above. The device 30 compacts concrete C and cuts joints.

By repeating the above operation, concrete C is placed (compacted and joint cut) on the placing lines 10C and 10D, and the concrete placing work on the concrete placing surface L covered with the moving roof 1 is performed. Is completed. Once the concrete C placed in this way is cured to the extent that it is not affected by rainwater, the moving roof 1
To move forward to cover the next concrete pouring surface, and pour concrete into the pouring surface in exactly the same manner as above.

According to the movable roof 1 described above, only the dump truck D can enter the concrete placing surface L, and the compacting device 2
0 and the joint cutting device 30 are suspended on the rail 9A installed on the roof main body 2, so that there is a risk that the devices 20 and 30 are closely packed and collide with each other, or collide with the dump truck D. It can be avoided. Therefore, the attention paid by the operators of the respective devices 20, 30 and the driver of the dump truck D to avoid danger is reduced, and as a result, the work efficiency is improved. Further, the concrete placing surface L to be placed is not roughened by the respective devices 20 and 30, so that the splicing quality and thus the construction quality are maintained.

When it is necessary to level the concrete C unloaded by the dump truck D by a device, the device is arranged in front of the compacting device 20 and the rail 9A is provided.
Just move along. FIG. 5 shows an example of the leveling device. The leveling device 40 is composed of an excavator 41 for gripping and leveling the fresh concrete C. The excavator 41 has a wire 43 wound and unwound by a motor 42. Suspended in. The motor 42 is fixed to a slider 44 that is laid across the two rails 9A at right angles and movable along the rails 9A. The slider 44 is provided with driving wheels for moving along the rails 9A and driving means (neither is shown) for driving the driving wheels. The shovel 41 has a slider 4 when viewed from above.
4 is located approximately in the center of the rail, and is therefore located approximately in the center of the rail 9A.

FIG. 6 shows another embodiment of the present invention. This moving roof 50 is a beam 6 in which a roof main body 2 similar to the one described above is extended with a projecting roof 51 projecting laterally beyond the legs 4. And a pair of fixed rails 5 on the lower surface of the overhanging roof 51.
2 is installed, and the compaction device 2 is installed along the rail 52.
0 and the joint cutting device 30 are configured to move.

In the case of the movable roof 50, the fixed rail 9, the movable rail 13 and the like are not installed in the roof main body 2, and concrete C is placed only in the portion covered by the overhanging roof 51. . However, the movable roof 1 is additionally provided with an overhanging roof 51, the line moving rail 12 is extended to the overhanging roof 51, and the compacting device 20 and the joint cutting device 30 can be moved from the movable rail 13 to the fixed rail 52. You may.

According to the movable roof 50, for example, the leg portion 4 is moved on the concrete placing surface L having a certain strength generated about three days after the placing and the overhanging roof 51 on the side of the leg portion 4 is moved. Placing the concrete C on the concrete placing surface L to be covered has the advantage that the leg 4 does not move on the concrete C immediately after placing and the placing surface is not likely to be roughened.

[0025]

As described above, according to the movable concrete pouring roof of the present invention, auxiliary equipment for concrete pouring such as a compacting device and a joint cutting device is suspended from the moving means provided on the roof body. Because they are suspended, the danger of these devices colliding closely and colliding with each other, or colliding with a dump truck that unloads concrete, etc. is avoided, work efficiency is improved, and concrete pouring The auxiliary equipment does not roughen the concrete placing surface, so that the construction quality is maintained. In addition, if the concrete is placed under the overhanging roof provided on the roof body, the legs of the roof body do not need to roughen the concrete placing surface. Further, the concrete pouring auxiliary device is provided so as to be separated from the fixed rail and movable in a direction intersecting with the fixed rail, and is moved by a movable rail continuous with the fixed rail during the movement. With the configuration, a plurality of auxiliary equipment for concrete pouring can be moved to any place, and the degree of freedom of the pouring work increases.

[Brief description of drawings]

FIG. 1 is a perspective view of a moving roof according to an embodiment of the present invention.

FIG. 2 is a schematic plan view of the same.

FIG. 3 is a side view of a compacting device attached to a moving roof according to an embodiment.

FIG. 4 is a side view of the joint cutting device.

FIG. 5 is a side view of the leveling device.

FIG. 6 is a schematic plan view of another embodiment of the present invention.

[Explanation of symbols]

 1, 50 Moving roof 2 Roof main body 3 Moving wheels 4 Legs 5 Moving means 9, 52 Fixed rails 10A, 10B, 10C, 10D Placing line 12 Line moving rail 13 Movable rail 20 Compacting device (for concrete pouring) Attaching device) 30 Joint cutting device (attaching device for concrete placing) 40 Leveling device (attaching device for concrete placing) 51 Overhanging roof C Concrete L Concrete placing surface

 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Yoichi Fukumoto 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Ken Takahata 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Incorporated (72) Inventor Takuro Odawara 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Corporation

Claims (3)

[Claims] 1. A movable roof for concrete pouring for blocking rainfall on a concrete pouring surface, the roof main body covering the concrete pouring surface, and legs provided with wheels for movement fixed to the roof main body. And a moving means for covering substantially the entire area of the roof body is provided in the roof body, and the moving means is a compacting device for compacting concrete, and a joint cutting device for jointing the compacted concrete. A moving roof for concrete pouring, in which an auxiliary device for pouring concrete is suspended so that it can be raised and lowered. 2. A movable roof for concrete pouring for blocking rainfall on a concrete pouring surface, the roof main body covering the concrete pouring surface, and legs provided with movable wheels fixed to the roof main body. And a protruding roof that is fixed to the roof main body and projects laterally from the legs, the protruding roof is provided with a moving unit that covers substantially the entire area of the protruding roof, and the moving unit includes: A moving roof for placing concrete, wherein auxiliary devices for placing concrete, such as a compacting device for compacting concrete and a joint cutting device for cutting joints of compacted concrete, are suspended so as to be able to move up and down. 3. The moving means includes a plurality of rails installed in parallel with each other and a drive device provided on either one of the rails or the concrete placing device, and the rails are fixed. 2. A rail and a movable rail which is separated from the fixed rail and is movable in a direction intersecting with the fixed rail and which is continuous with the fixed rail during the movement.
Alternatively, the moving roof for concrete pouring according to claim 2.