JPS6362616B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a large-scale mobile concrete formwork apparatus for use in raising retaining walls and embankments.

When constructing a concrete structure that is horizontally long and large in height, such as a retaining wall or embankment, first construct a foundation concrete of the required height on the foundation, and then build a wall of the required height on top of it. However, in order to increase efficiency and save labor, large mobile formwork equipment is used to construct retaining walls that are horizontally long and have almost the same cross-section. I'm starting to be able to do it.

However, conventionally used mobile formwork equipment moves while holding a large formwork, shaping the formwork,
Since a series of operations such as repair and demolding are required, the structure becomes complex and requires a high level of skill to handle, and it is also heavy and expensive, making it difficult to obtain significant economic effects. .

In view of the above-mentioned conventional situation, the present invention has been made for the purpose of providing a mobile concrete formwork device that is simple in structure and handling and can be manufactured at low cost.By using this device, retaining walls, embankments, etc. This can be achieved by making the construction more efficient and economical.

Embodiments of the apparatus of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 denotes a holding frame, which is formed by a beam frame 2 extending in the longitudinal direction of the construction structure and a column frame 3 hanging downward from the front end of the beam frame 2. A plurality of them are arranged at required intervals in the width direction of the constructed structure. And these holding frames 1, 1
, a plurality of body members 4, 4 extending in the width direction of the construction structure are erected on these beam frames 2, 2,
combined.

At the rear end and front end of the holding frame 2, rear running gear wheels 6, 6 and front running gear wheels 7, 7, whose heights are adjustable, are provided, respectively. That is,
A mounting member 8 is erected at the rear end of the beam frame 2,
A rear traveling caster 6 is provided with its trunk 9 fixed, and a leg rod 11 having a wheel 10 at the lower end is inserted into the trunk 9, and the trunk is moved by means of hydraulic pressure or screws. It is adjustable up and down with respect to 9.
Further, a front traveling caster 7 is provided at the lower end of the column frame 3 which is vertically disposed at the front end of the beam frame 2, with its trunk 9 fixed. This front traveling leg vehicle 7 is
Since it has the same configuration as the rear traveling leg vehicle 6 described above, detailed explanation will be omitted. The rear running caster 6 is placed on an upper rail 5 laid on the upper surface of the raised structure B so as to extend in the longitudinal direction thereof, and the front running caster 7 is mounted on an existing structure such as a concrete foundation. It is placed on a lower rail 13 laid on the upper surface of A so as to extend in the longitudinal direction.

Reference numeral 14 denotes a front formwork attached to the front end of the holding frame 1, that is, the rear side of the column frame 3, and is formed by fixing a weir plate to butter material or the like, similar to conventionally known formwork. In addition, 16, 16 is the body material 4,
Side formwork attached to both ends of 4, front formwork 1
4, it is formed by fixing a weir plate to vertical or horizontal frame members, and the body members 4,
Vertical support rods 17, 17 are located at locations corresponding to 4.
is installed. Incidentally, this support rod 17 can utilize a formwork vertical flap. Further, a lateral movement jack 18 formed long in the longitudinal direction of the body member 4 is fixedly provided at the upper end of each support rod 17. This jack 18 is conventionally known, but just to be sure, a threaded rod 18b is rotatably provided in a cylindrical body 18a that is horizontally elongated along the longitudinal direction of the body material 4. The rod 18b has a cylindrical body 18a.
A movable piece 18d with a pin 19 protruding from a long hole 18c provided in is screwed in, and by rotating the screw rod 18b, the pin 19 is moved along the long hole 18c via the movable piece 18d. This is how it has become. This pin 19 is pivotally connected to a bracket 20 fixed to the body member 4. Therefore, the side formwork 16 can be tilted with respect to the body member 4 via the support rod 17 about the pin 19 as an axis as shown by the arrow a in FIG. It is configured to be movable and adjustable along the longitudinal direction of the body member 4 as indicated by arrow b.

Note that in this embodiment, the beam frames 2, 2
The body material 4 connected to the front and rear parts 2 of the beam frames 2, 2
The number of locations can be increased as needed.

Next, to explain the construction mode using the device of the present invention, rails 5, 5, 13, 13 are installed on the upper surface of the structure B that has already been raised on the existing structure A, such as foundation concrete, and on the upper surface of the existing structure A. The rear running gear wheels 6, 6 are placed on the rails 5, 5, and the front running gear wheels 7, 6 are placed on the rails 13, 13.
7 to support the device of the present invention on both structures A and B. In this case, the rear part of the side formworks 16, 16 is connected to the bulky structure B by the required length l (see Fig. 1).
This is the position where only the In addition, the lengths of the rear traveling wheels 6, 6 and the front traveling wheels 7, 7 are adjusted so that the lower ends of each formwork 16, 16, 14 are grounded on the top surface of the existing structure A. do. Furthermore, the side formworks 16, 16 are brought into close contact with both sides of the front formwork 14 by operating the lateral movement adjustment device at the upper end thereof. The lower parts of the side formworks 16, 16 are fixed at a predetermined position by, for example, fixing the formworks to each other with connecting bolts or connectors (not shown), or by fixing them to an existing structure, etc. It should be made to counteract the lateral pressure of poured concrete.

Each formwork 14, 1 set in this way
Concrete C (see FIGS. 3 to 5) is placed in the spaces between 6 and 16. Once the poured concrete has hardened, the fixation at the bottom of the side formworks 16, 16 is released, and as shown in FIG.
The upper ends of 6 and 16 are moved outward in the width direction to separate them from the concrete C. Next, as shown in FIG. 4, the rear traveling casters 6, 6 are raised and the holding frame 1 is tilted rearward. As a result, the column frame 3 is tilted and the front frame mold 1 is fixed thereto.
4 is peeled off from concrete C. After this peeling work is completed, as shown in FIG. The entire structure will be lifted up and its entire lower end will be separated above the existing structure A. Then, by laying the rails 15, 15 connected to the rails 5, 5 on the concrete C and pushing the formwork device by an appropriate means, the formwork device will be guided by the rails 13, 13, 15, 15. can be moved to the next construction position.

Construction progresses by repeating the above-mentioned construction steps.

In addition, in this example, rails are laid in order to move the formwork equipment, but this is not essential, and the upper surface of the foundation concrete A is flat, and the running operation must be done with sufficient care. If this is done, it will be possible to travel without installing rails.

As explained above, in the device of the present invention, a front formwork is provided at the front part of the holding frame that is movable, and side formworks are provided on both sides, so that the holding frame can be moved up and down and adjusted in tilt. At the same time, the side formwork can be tilted and moved in the width direction, so each formwork for pouring concrete is connected together, making traveling movement and holding the formwork reliable and easy. In addition, the side formwork can be easily formed and peeled by the movement adjustment device at its upper end, and can also be adapted to changes in the width of the constructed structure. , By simply raising the rear traveling gear, the front formwork fixed to the support frame will tilt due to the tilt of the holding frame, allowing it to be peeled off from the concrete, so special measures must be taken to peel off the front formwork. It has a simple structure, is lightweight, can be manufactured at low cost, is easy to handle, improves construction efficiency, and reduces construction costs, and has many excellent effects.

[Brief explanation of drawings]

The drawings show the state of use of a mobile concrete formwork apparatus according to an embodiment of the present invention, in which Fig. 1 is a side view, Fig. 2 is a partially cutaway front view, and Fig. 3 shows peeling of the side formwork. FIG. 4 is a front view showing the state, FIG. 4 is a side view showing the peeled state of the front formwork, and FIG. 5 is a side view showing the state during traveling. A... Existing structure, B... Bulky structure, C...
Concrete, 1... Holding frame, 2... Beam frame, 3... Support frame, 4... Trunk material, 5...
...Rail, 6... Rear traveling gear, 7... Front traveling gear, 13... Rail, 14... Front formwork, 15
...Rail, 16...Side formwork, 17...Support rod, 18...Lateral movement adjustment jack, 19...Pin.

Claims (1)

[Claims] 1. A support frame is integrally hung on the front end of a beam frame extending in the longitudinal direction of the structure to be constructed to form a holding frame, and a support frame is placed on the top surface of the bulky structure at the rear end of the holding frame. A height-adjustable rear running gear is provided, and a height-adjustable front running gear is provided at the lower part of the front side of the column frame, and the height is adjustable. At the same time, a front formwork is fixed to the rear side of the support frame, and a plurality of body members extending in the transverse direction of the frame are attached at intervals to the beam frame, and both ends of the body members are attached to the beam frame at intervals. A movable concrete formwork apparatus, characterized in that side formworks are vertically installed at the upper end portions of the side forms so as to be tiltable and movable and adjustable in the longitudinal direction of the body material.