JPS58218553A - Concrete moving mold frame method and apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a moving formwork construction method and an apparatus therefor suitable for constructing concrete walls that protrude in a long vertically inclined manner.

Labor-saving for construction of long concrete structures with the same cross section.
Efficient mobile formwork construction methods have come into use, but
However, its application is still limited. For example, when constructing a vertically long and sloped wall-shaped concrete structure such as a dam discharge channel, or a structure containing such a structure, it is difficult to safely and reliably support and move the formwork. The introduction of movable formwork has been abandoned, and traditional formwork construction is still being carried out, in which formwork is assembled and dismantled for each construction section.

The present invention aims to break away from the conventional inefficient formwork construction by hand-assembling and hand-cutting, and to realize a labor-saving and efficient mobile formwork construction method. A horizontal body is installed on a frame equipped with a car so that it can be raised and lowered, and a formwork body is attached to this body so that it can be tilted and moved laterally.A movable formwork device is used. The frame is moved up against the fixed form body through the body material, and after the poured concrete has hardened, the frame is placed on the concrete, and after the form body is removed, it is moved through the body material. The method is characterized in that the form body is raised relative to the pedestal, the entire body is moved to the back side by simply using the running legs of the pedestal, the form body is fixed to the concrete, and the same operation is repeated thereafter. As a result, there is no need to construct large-scale scaffolding as in the past, and the work can be done labor-savingly and efficiently, significantly improving economic efficiency.

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

First, to explain the movable formwork device used in carrying out the construction method of the present invention, as shown in Figs.
It consists of 9C.

Frame A has pillars 1a and la arranged on all sides.

lb and lb are connected to each other by girder members 2, 2, . ...
... is provided so that it can be transferred forward and backward. and,
Front struts 1a, front and rear struts 1b, l of 1a
On the rear side of b, there are elevating bodies 4a, 4a, 4b, 4b that can be slid up and down with support columns 1a and 1blCIYi, respectively.
is installed.

The trunk members B are formed to be long in the transverse direction of the pedestal A, and are arranged as a pair on the front side and the rear side of the pedestal A, and the middle part of each is the elevating body 4a.

4a, 4b, 4b, and can be moved up and down together with the elevating bodies 4a, 4b.
It protrudes outward for a long time.

The formwork C is constituted by fixing a weir plate 7 formed in a shape along the construction wall surface to the assembled vertical butterflies 5, 5, . . . and horizontal butterflies 6, 6, . In particular, the front and rear edges of the weir plate 7 are sloped so as to substantially match the slopes of the front and rear edges of the construction wall. Support rods 8, 8 are fixed to the vertical flaps 5.5 and protrude upwardly in two places in the middle of the form body C, and at the upper end of each support rod 8, A long lateral movement jack 9 is fixed in the transverse direction of the form body B. This lateral movement jack 9 is a conventionally known movement adjustment jack, and is configured to move the pin 11 in the lateral direction by rotating a threaded rod 10.

The above-mentioned formwork bodies C are prepared as a pair, and when constructing two walls at the same time, such as a waterway wall, for example,
Two pairs are required as shown in FIG. Therefore, each form body C is an elevating body 4a.

4b, and for each of the body members B and H,
Bottle 11 of lateral movement jack 9 fixed to the upper end of support rod 8
It is pivotally attached and supported via the bin 11, and is rotatable along the longitudinal direction of the body member B about the bin 11 as an axis. In addition, the lower end of the tilting rod 12 is pivotally attached 17 to the lower part of the outer formwork among the pair of formwork bodies C1C, and an adjustment jack 14 is provided at the upper end of the tilting rod 12 along its length. The bottle 16 is opened by rotating the threaded rod 15 in the same way as the jack 9 described above.
is adapted to be moved along the longitudinal direction of the tilting rod 12. The tilting rod 12 is pivotally attached to the outer end of the body member B via a pin 16.

Therefore, each form body C can be freely rotated as shown by arrow a around the bin 11 at the upper end, and the body can be rotated as shown by arrow a by fully rotating the screw rod 1o of the lateral movement jack. The movement of the material B can be adjusted along the longitudinal direction. In addition, the distance between the bins 16 and 17 of the outer formwork C can be adjusted by rotating the screw rod 15 of the adjustment lever of the tilting rod 12, and the distance between the bins 16 and 17 can be adjusted around the bin 11. .

Each of the trunk members B fixed to the elevating bodies 4a and 4b has pulleys 18 and 19 on the upper and lower surfaces near the fixing points, respectively.
At the same time, a pulley 20 is attached to the lower end of the pedestal A opposite to the pulley 19, and a pulley 20 is mounted on the upper surface of the pedestal A to a position opposite to each pulley 18, which is rotated by a motor 21. A drive wheel 22 is attached, and these pulleys 18, 19, 20 and the drive wheel 22 are linked by a chain 23. In other words, the girder material 2 directly below the drive wheel 22
One end 23a'lz of the chain 23 is fixed to a member 24 provided at 19 and the other end 23be is fixed to the lower end of the frame A. Therefore, if the drive wheel 22 is rotated in the direction of arrow C in FIG. Therefore, the trunk material B is the elevating body 4a.
, 4b to move upward along the pillars 1a and lb, and the frame A
This will change the relative vertical position between the two.

Conversely, if the drive wheel 22 is rotated in the direction of arrow d, the distance between the drive wheel 22 and the upper pulley 18 will increase, and the distance between the body pulley 20 and the lower pulley 19 will decrease. is,
The body member B will be moved down relative to the frame A.

That is, by rotating the drive wheel 22, if one part of the frame A is fixed, the body member B will move up and down, and if the body member B is fixed, the frame A will be moved up and down. That's what happens.

In the above embodiment, four prime movers 21 are provided for each drive wheel 22 to move the body material B and the frame A relative to each other in the vertical direction. 1 each
Alternatively, all drive wheels can be operated by a single prime mover. The jacks used for lateral movement and tilting of the formwork C are not limited to screw type jacks as in the above embodiments, but various types of jacks such as oilfield type jacks can be used.

Next, a method for concrete construction of an inclined wall such as a dam waterway wall using the above-described mobile formwork apparatus of the present invention will be described. □ First, the formwork bodies Ce are arranged at predetermined intervals corresponding to the interval and wall thickness of the wall bodies to be constructed. (7) This is done by moving the form body C in the lateral direction with respect to the body material B by operating each lateral movement jack 9. Then, as shown in FIGS. 1 and 2, the lower part of the form body C is fixed using connecting bolts 25 buried in the foundation or existing concrete (D). As a result, the pedestal A is supported by the body member B via a hanging mechanism such as the chain 23. Therefore, if the driving wheel 22 is rotated by the prime mover 21 in the direction of the arrow d in FIG. 3, the frame A will be raised relative to the body B as shown in FIGS. 1 and 2. .

Then, connect the upper part of each opposing form body C9C with the connecting bolt 2.
6. In this case, the tilting rod 12 is not just a mechanism that rigidly connects each form body C via the body material B;
By operating the adjusting jack 15e), the normal alignment of the formwork C can be adjusted. Next, the handle 3a (see FIG.

(Fig. 4) to raise it (Fig. 5).

In this state, reinforcement is placed between the facing weir plates 7 and 7, and it is ready!
j-)E is poured, and at this time, it goes without saying that a gable formwork (not shown) is attached between the front ends of each pair of formworks C2C by conventionally known means.

After the poured concrete E hardens, longitudinal rails 27, 27 are laid on the upper surface of the concrete E, and the elevated traveling caster 3.3 is lowered to the rails 27.2.
Place it on top of 7.

Then, each connecting pole) 25, 26 and the formwork body C are uncoupled, each lateral movement jack 9 and the adjustment jack 14 are operated to move each formwork body C1 outward, and the concrete E is peeled off. let In this state, the form body C1 body material B
is suspended on pedestal A, and pedestal A is supported on rails 27.27.

Next, the driving wheel 22 is moved by the prime mover 21 in the direction of arrow C in FIG.
direction, and the form body C is raised via the body material B as shown in FIG. In this case, the raised position of the formwork C is such that the lower part of the formwork C is somewhat overlapped with the upper part of the concrete E.

Then, with the form body C in a suspended state, the frame A is placed on the concrete E along the rails 27 and 27 as shown in Fig. 7.
The mold body C is moved to the rear (inner side) and reaches a predetermined position.

Next, the lower part of the formwork Ct is fixed to the previously buried connecting bolt 26, and the lateral movement jack 9 and the adjustment jack 14 are operated to assemble the formwork Ct into a predetermined state.

From then on, the same operations as described above are repeated to proceed with construction.

As explained above, the present invention provides a mobile type in which a horizontal body member is provided on a frame provided with a traveling caster so that it can be raised and lowered, and a form body is attached to this body member so as to be able to adjust its tilting and lateral movement. Using a frame device, the frame is raised and lowered relative to the fixed formwork during concrete pouring, and after the poured concrete has hardened, the frame is placed on top of the concrete and the formwork is removed from the mold. The form body is raised relative to the pedestal via the rear body material, and the entire body is moved to the back of the concrete by the running chest of the pedestal, the form body is fixed to the concrete, and the same operation is carried out thereafter. Since this process is repeated, scaffolding and formwork assembly for formwork construction not only eliminates the need for transportation equipment such as cranes and their supporting equipment required for dismantling, but also eliminates the need for formwork construction each time. Construction can be carried out labor-saving and efficiently without the conventional difficult and complicated work such as assembly and disassembly, and the advantages of the moving formwork method are fully utilized. It has many excellent effects, such as the fact that the construction of the protruding wall can be done extremely economically.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the device of the present invention, Fig. 2 is a side view of the same, Fig. 3 is an enlarged front view of the main parts, Fig. 4 is a side view of the same, and Figs. The figure is a schematic side view showing the order in which construction is carried out using the apparatus of the present invention. A... Frame B... Trunk material C...
...Form body 1a, lb...Strut 2...
・Girder material 3...Travelling gear
14a, 4b... Elevating body 7... Shelter plate 9
... Lateral movement jack 12 ... Tilt rod 14.
... Adjustment jack 18.19.20 River pulley 21 ... Prime mover 22 ...
Drive wheel 23...Chain 25.26...Connecting bolt 27...Rail patent applicant Okabe Co., Ltd.

Claims (2)

[Claims] (1) Using a movable formwork device consisting of a pedestal with a traveling caster at its lower end and a formwork body whose upper end is pivoted to a body material provided on the pedestal so as to be able to rise and fall freely, the lower part of the formwork body is is fixed and erected, and after the poured concrete has hardened, a pedestal is placed on the concrete, and then the form body is raised to a predetermined height and the pedestal is moved to the back of the concrete, A moving concrete formwork construction method, which comprises repeatedly fixing the lower part of the formwork to the concrete at a predetermined position, then moving a pedestal relative to the formwork and pouring concrete. (2) A body member formed long in the horizontal direction perpendicular to the running direction is provided on a frame having running wheels at its lower end so as to be movable up and down, and the upper end of the form body is pivotally supported on the body member. A moving concrete formwork device, characterized in that the formwork is adjustable in tilt and lateral movement, and is provided with means for fixing it to an existing structure, etc. at the bottom of the formwork.