JPS6135344B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a formwork scaffolding frame in which the formwork frame which also serves as scaffolding support is self-elevated by supporting the previously cast concrete wall.

Conventional formwork scaffolding used for construction of concrete walls such as the exterior walls of general buildings and bridge piers requires the unloading of steel frames, reinforcing bars, temporary materials, etc., and the lifting and unloading of formwork materials on site. The actual lifting plan becomes overcrowded. Furthermore, in construction work where the site is small or the temporary material stockyard is narrow, wall pouring work cannot be carried out smoothly unless efforts are made to actively reduce the lifting weight.

For the above reasons, there is a need for the development of new construction methods and formwork scaffolds that require less lifting weight and can be used for reinforcing work during the curing period after concrete pouring, allowing for the next stage of ascent work. Therefore, in some cases, concrete is placed by attaching a formwork scaffold stand to the outside of the poured wall so that it can rise freely. For replacement,
A tower crane was used and required work space above ground to scrape off deposits from the formwork. Furthermore, the formwork could not be raised during the curing period, and the formwork was moved to the next raised position.
However, since it was not possible to move on to reinforcement work, there was a large loss in the process, and the overall work was complicated, so it was still far from being sufficient.

This invention was devised for the above-mentioned reasons, and is capable of attaching a trestle to a concrete wall cast together with formwork and scaffolding so as to be able to slide on its own, and without using a crane or the like. The pedestal can be raised to follow the pouring work while repeating relative movement with the pillar built into the body that slides and expands and contracts.Furthermore, the scaffolding above and below the pedestal allows it to be moved continuously after concrete is poured. It is also possible to perform reinforcement work on the elevated position of the formwork and repair of the lower exposed surface.Furthermore, formwork made of large panels can be repaired on a stand without being lowered to the ground, improving formwork accuracy. The purpose of this project is to provide a new self-elevating formwork scaffolding system that not only improves the performance of concrete walls but also allows concrete walls to be placed safely and smoothly without frequent lifting. .

The present invention will be explained in detail below using illustrated examples.

1 is a poured concrete wall, 2 is a large panel formwork 3 and a mounting frame for the upper and lower scaffolds 4.

As shown in FIGS. 1 and 2, the mount frame 2 has an upper frame 21 and a lower bracket frame 22 connected to form a rectangular parallelepiped by vertical and horizontal frames 23, 23, and further includes a bracket frame 2.
A reinforcing frame 24 is installed vertically below the frame 2.

In addition, on both sides of the mount frame 2 facing the concrete wall, there are a pair of sheath pipes 6, 6 fixed by pins a' that can be freely inserted and removed through the support 5 of the required length.
However, the upper frame 21 and the bracket frame 22
As shown in FIG. 3, fixing members 25 are formed protruding from both upper and lower ends of the inside of the bracket frame 22. As shown in FIG.

Furthermore, as shown in FIGS. 3 and 5, a horizontal frame 23 facing the wall 1 of the pedestal frame 2
A guide member 7 made of a steel material with a fitting groove is vertically arranged on the inner surface of the frame frame 2 to prevent the frame frame 2 from falling.

A hanging jig 9 for the trestle frame 2 is integrally installed at the upper ends of the pillars 5, 5, and a U is provided through each of the hanging jig 9 and the upper frame 21.
An electric chain block 12 for lifting is provided across the bolts 10 and 11. Further, hanging pieces 13 and 14 of the chain block are protruded from the lower end of the sheath tube 6 and the lower end of the strut 5, and although not shown, the chain block 12 A chain block similar to the above is attached using a perforated plate, and the upper and lower chain blocks link the gantry frame 2 and the support column 5 so that they can rise alternately.

The formwork 3 is suspended from hangers 15, 15 made of a plurality of shaped steel materials arranged in parallel below the upper frame 21, and can move horizontally into and out of the wall 1 within the working space above the bracket frame 22. The retracting position can be freely adjusted by a retracting adjuster 16 installed on the inside of the upper part of the sheath pipe 6.

18 is a bracket for receiving the lower end of the pillar 5;
Reference numerals 19a, 19b, and 19c are anchor members for supporting the pedestal, which are removably fixed to the outside of the wall 1, and are sequentially repositioned upward each time the pedestal 2 is raised as the wall 1 is cast. , the pedestal 2 is fixed to the wall 1.

The anchor members 19a, 19b, 19c are
As shown in FIGS. 3 to 4, the guide member 7
a member having a pair of rollers 20 at its tip that fits into the side surfaces of the mount frame 2, and a member connected to the fixing member 25 with a pin b. The above pin with
Remove a' and free the stand frame 2.

Note that 30 is a push metal fitting for controlling the gantry. Further, in the present invention, when the main structure such as a steel frame is located on the upper part of the frame, a lifting jig can be fixed thereto and the frame can be lifted using a lifting device such as a chain block.

Next, an example of self-lifting of the gantry will be explained in order with reference to each diagram in FIG. 6.

First, remove the formwork support (not shown), remove the height adjustment device 16, dismantle the formwork 3 together with the inner formwork 31, and then pull the formwork 3 into the mount frame 2 and connect it to the wall 1. Remove it and repair it on the spot (Figure 6 ()).

Next, the anchor member 19c is attached to the outer wall and fitted into the guide member 7 set on the pedestal frame side (FIG. 6()).

And on the hanging pieces 13 and 14 between the sheath pipe 6 and the strut 5
Cross the chain block and attach the trestle frame 2.
After connecting the pillar 5 with the chain block, remove the anchor member 19a with the chain block tensioned.
Remove the fixing bolt of the bracket 18, free the support column 5, and pull out the pin a'.

The chain block is hoisted up to raise the column 5 to a predetermined position, and a pin a is placed to prevent it from falling.
and replace the bracket 18 with the bolt previously embedded in the wall 1. (Figure 6()).

Next, remove the members that attach the trestle frame 2 to the wall 1, and while repairing holes in the wall that were caused by the replacement, connect the chain block 12 between the top of the support column 5 and the top of the upper frame 21. After setting and tensioning it sufficiently, loosen the presser metal fittings 30, etc., pull out the pins a and b to free the sheath tube 6 from the support 5, and put the mount frame 2 in a suspended state. Then, the chain block 12 is rolled up and the gantry frame 2 is pulled up to a predetermined position. When the lifting of the trestle frame 2 is completed, pins a' and b are inserted again to connect the trestle frame 2 to the support 5, and also to the wall 1, and the formwork 3 is erected (step 3). Figure 6 ()).

Set the anchor bolts in the formwork 3, install the build-up adjuster 16 to correct the build-up, install a separator to the inner formwork 31, and then connect the pump piping.
Concrete is placed on the upper part of the wall 1 where reinforcement has been arranged (Fig. 6 ()).

Thereafter, by repeating the same process, the walls are successively cast upward one block at a time, and at the end, the walls as designed can be constructed.

As described above, this invention is configured so that the frame frame, together with the formwork and scaffolding, can self-lift up the side of the poured wall by repeating the relative movement between the frame frame and the support. Because it is a thing,
There is no need for a crane to lift the pedestal or large-scale incidental equipment, so it can be fully utilized even if the site is small. In addition, the panel formwork is suspended horizontally within the work space of the trestle frame, and a construction adjuster is installed between the panel formwork and the trestle frame, so the position of the formwork can be adjusted arbitrarily according to the wall thickness. Not only is this possible, but the formwork can also be repaired within the frame, so there is no problem even if there is no work space on the ground, and the frequency of lifting is reduced, streamlining the lifting plan and saving labor. It is possible to aim for In addition, the upper and lower scaffolds have many advantages, such as the ability to work on reinforcing the next elevated position of the formwork and repairing the lower exposed surface after concrete pouring, and the stress range is also limited to a specific wall. First, it has the advantage that it can be used not only for the exterior walls of general buildings, but also for the construction of concrete structures of a certain height, such as bridge piers.

[Brief explanation of the drawing]

The drawings show one embodiment of the self-rising formwork and scaffold support frame of the present invention, in which Figure 1 is a side view, Figure 2 is a front view, Figure 3 is a plan view of the frame, and Figure 4 is a side view. 5 is a side view of the guide portion of the pedestal, FIG. 5 is a side view of the same as above, and each figure in FIG. 6 is a side view showing the pedestal raising process in order. DESCRIPTION OF SYMBOLS 1... Wall body, 2... Mounting frame, 21... Upper frame, 22... Bracket frame, 23
... Vertical and horizontal frames, 24 ... Auxiliary frame,
25... Fixed piece, 3... Formwork, 4... Scaffolding, 5...
...Strut, 6... Sheath tube, 7... Guide member, 9... Hanging jig, 12... Chain block, 13, 14
...Bracket, 19a, 19b, 19c...Anchor member, a, a', b...Pin. 〓〓〓〓

Claims (1)

[Claims] 1. In a formwork scaffolding system in which the formwork mount, which also serves as scaffold support, rises by itself using the concrete wall that has been poured in advance as support, a vertical guide member that fits with the replaceable anchor member on the side of the poured wall. and a fixing member pin-coupled to the anchor member on both inner sides thereof, and a pedestal frame for supporting upper and lower scaffolds;
A pedestal is constituted by columns that are fixedly inserted through sheath pipes vertically installed on both sides of the pedestal frame and supported by brackets on the pouring wall side, and the pedestal frame and the columns are connected to one another by hammering one side. A plurality of lifting chain blocks are connected so that they can be raised alternately while fixed to the installed wall body, and the panel formwork is horizontally movably suspended inside the trestle frame, and the panel formwork and the trestle are A self-rising formwork scaffolding system, characterized in that a construction adjustment device is provided over the frame.