JPS6128837Y2 - - Google Patents

Description

[Detailed explanation of the invention] The support method, which is often used for constructing floor formwork and beam formwork for conventional internal formwork, is carried out independently under the beams and under the floor, and it is difficult to support the floor formwork. In this case, support is provided using shoring installed at appropriate intervals between the beam formworks, and large pull-downs and joists installed at the upper end of the shoring, and is carried out independently of the support of the beam formwork. Therefore, the beam formwork was supported by an independent support dedicated to the beam formwork that was erected in parallel with its lower end, and the lateral support of the beam formwork was dependent on separators. .

Therefore, a large number of parts are used, and therefore there is an economical problem in construction, which requires a great deal of labor and time to assemble or dismantle each part, and the presence of shoring makes it difficult to provide a working space. In some cases, there was no such thing.

However, in order to solve the above-mentioned problems, the support for the beam formwork also serves as the support for the floor formwork, and the above-mentioned support for the floor formwork is omitted, with the aim of rationalizing the erection of the floor and beam formwork. As a result, a construction method for composite (floor/beam) formwork was developed.

The present applicant has also proposed a retractable beam support support device, which is applicable to the construction method of the above-mentioned composite formwork, in Utility Model Application No. 49-79033 and Utility Model Application No. 51-150631. Its purpose is to allow for a wide space under the floor, making it convenient for floor formwork assembly and dismantling work, and to accommodate changes in beam width and floor formwork when using standard lengths. The reason is that we have made it possible. However, these beam bottom supporting devices have difficulty in tightening to the beam formwork. In other words, in the case of Utility Model Application No. 49-79033, the tightening stress is mechanically supported only by the frictional force between the bolt tip and the abutment part, so it is not reliable and durable. It is unreasonable, and in the case of Utility Model Application No. 51-150631,
Since both ends of the long bolts placed transversely at the bottom of the beam are tightened with nuts, the beam formwork can be supported reliably.
Although the durability was good, there was a problem in that the nut had to be operated separately on both sides of the beam bottom.

This proposal was developed in view of the above points, and as mentioned above, the tightening mechanism, which tightens both ends of long bolts with nuts, has good reliability and durability when supporting beam formwork. This has been improved so that it can be done in one place.

To explain in detail the drawings showing the embodiments of the present invention below, in Figures 1 and 2, the shoring 3 of the beam formwork 2, which also serves as the support of the floor formwork 1, is concentrated near the beam 4. Pipe supports 7, 7', in which the auxiliary supports 6 are connected to the main support 5, are connected to the horizontal joint pipes 8..., 8'... to form an upright structure, and the pipe supports 7, 7' A lower horizontal member 9 made of parallel girders with a gap at the upper end is mounted.

Incidentally, at both ends of the lower horizontal member 9, hollow portions 9' (shown in the third figure) for preventing objects to be placed from falling, which will be described later, are provided.

On the lower horizontal member 9, upper flat members 10, 10 are formed by arranging two pairs of channel-shaped steel members of girder members in parallel at appropriate intervals, and a bracket 11 is hung from the tip thereof in a clamping manner. , 11 are inserted into the center gap of the lower horizontal member 9 and placed so as to be movable and adjustable in the width direction of the beam 4 and are arranged opposite to each other. The wedges 13, 13 driven into holes (not shown) in the brackets 11, 11, which are held at an adjusted interval, are pressed against the lower surface of the lower horizontal member 9, and the wedges 13, 13 are pressed against the lower surface of the lower horizontal member 9. The upper horizontal members 10, 10 are fixedly provided.

Further, both upper horizontal members 10, 10 have horizontal wrap members 10', 10' facing each other (as shown in the third figure).

A clamp 16 for backing up the beam-side formwork 15 is fitted to the upper horizontal member 10 from the bottom surface via a fitting leg 16' for a slide guide for the center interval of the upper horizontal member, and the clamp 16 is slidably fitted to the upper horizontal member 10. , a plurality of horizontal pin holes 14 at equal intervals in the longitudinal direction.
It is fixed with a pin 17 that is engaged with...

The position of the clamp 16 is adjusted in the width direction of the beam with respect to the upper horizontal member 10 by appropriately selecting the pin hole 14 and engaging it with the pin.

Furthermore, both upper horizontal members 10, 10 have large underwriting supports 18 for supporting the floor form 1 erected from their respective outer ends.

This support 18, as clearly shown in FIG.
A guide tube 21 with a threaded portion 19 carved on the outer periphery and a long hole 20 vertically provided on the outer periphery corresponding to the threaded portion is fixedly erected on the upper horizontal member 10, and is received by the upper end of the guide tube 21. A pipe 23 having blades 22 arranged thereon is slidably inserted into the pipe 23, and a locking pin 24 is passed through the pipe 23 laterally, the protruding end is fitted into the elongated hole 20, and the pipe 23 is screwed into the threaded portion 19. Adjustment ring 25 arranged to match
It is formed to support a locking pin, and by arbitrarily screwing the adjustment ring 25, the height of the pipe 23 can be adjusted within the effective length of the elongated hole 20. It's summery.

In addition, the pipe 23 is provided with a plurality of locking pin fitting holes 26 at appropriate intervals along its length, and the locking pins 24 are fitted into the long holes by selecting the holes appropriately. 20, the height adjustment stroke can be increased.

The receiving blade 22 at the upper end of the pipe 23 allows the orientation to be changed in a direction perpendicular to the manner in which the illustrated large puller 27 is supported. This is done by removing the retaining pin 24.

Further, the receiving blade 22 may be detachably connected to the clamp 16 by the stay bolt 28 to increase the support strength of the receiving blade.

Further, the clamp 16 is provided with two rectangular pipe supports 29 made of L-shaped steel and fixed to the tips of the screw rods 30 so as to be adjustable in the width direction of the beam 4 and arranged in upper and lower positions.

Therefore, when using this in the above configuration,
If the shoring 3 is erected under the beam and the upper horizontal members 10 and 10 are installed on the lower horizontal member 9 at the upper end as described above, the upper horizontal member 1
On top of 0 and 10, there is a large drawer 31 consisting of square pipes, etc.
31 are placed in an appropriate number in the longitudinal direction of the beam 4. Then, the beam bottom form 32 is placed and supported on the large drawers 31, 31....

Next, the beam side formwork 15, 15 is clamped 16, 1
The square pipes 33 are supported by the square pipe supports 29 of No. 6 and supported from the outside.

The supports 18, 18 support the floor formworks 1, 1 by placing a support 27 made of a square pipe or the like on the receiving blades 22, 22.

In this case, the level of the floor formworks 1, 1 can be adjusted by screwing the adjustment ring 25 of the support 18 into the elongated hole 20.
The adjustment to the beam width in question is made within the effective length of both upper horizontal members 10 and 1.
At the same time as removing the pin from 0, remove the width locking bolt 1.
This is done by screwing the nuts 34, 34 which are screwed into the parts 2 and moving them arbitrarily in the width direction of the beam, but since the operation part is concentrated in the center of the beam bottom, only one piece is required. Both ends can be operated at any time. Further, fine adjustment is performed by screwing the screw rods 30, respectively.

In addition, when using floor formwork 1 of a fixed length to create an irregular surface at the end, an auxiliary formwork 1' for the irregularity is used with the beam side formwork 15, as shown in Figure 3. The receiving blade 22 has a loading capacity over a large area in an expanded manner.
It can be constructed and placed on a large drawer 27 placed above.

Furthermore, the receiving blades 22, 22 in the beam longitudinal direction of each shoring device constructed as described above under each beam.
When using floor formwork that is longer than the spacing, first change the direction of the receiving blades 22 by 90 degrees from the position shown in the illustration so that the floor formwork does not interfere with the hanging of the floor formwork. After hoisting the assembled structure in advance in the underfloor space, the direction of the receiving blades 22 can be returned to the original direction, and the floor formwork 1 can be supported with the support blades 27 interposed.

Therefore, a large-span composite panel made of iron plates that can be rotated multiple times can be used for the floor formwork, thereby making it more effective.

As explained above, according to the telescopic beam support support device according to the present invention, the frame can be concentrated near the beam to also support the floor formwork, and the space under the floor can be widened. Of course, the space under the floor can be used to conveniently assemble and dismantle the floor formwork.
A clamp 16 for the beam side formwork and a large underwriting support 18 for supporting the floor formwork are erected, and two upper horizontal members 10 and 1 are placed on the lower horizontal member 9 to support the beam bottom formwork.
0 can be adjusted in the width direction of the beam, and the structure as the floor formwork and beam formwork support is expandable and retractable, so when the beam width changes, use a standard length floor formwork. It is possible to fully respond to changes in floor formwork when the floor is moved, and it is also possible to use the widest floor formwork that can be raised and lowered using the space under the floor. In addition, since the upper horizontal members 10, 10, clamps 16, and supports 18 are integrated on the lower horizontal member 9 installed at the upper end of the shoring, formwork work is more effective. In addition to improving safety and shortening the construction period, this method is extremely suitable because the tightening operation for supporting the beam formwork can be performed at one location at the center of the beam bottom.

[Brief explanation of drawings]

FIG. 1 is a partially sectional front view showing how the telescoping beam support support device according to the present invention is used. Second
The figure is a side view showing how the shoring device is used. FIG. 3 is an enlarged front view showing the main parts of the shoring device. FIG. 4 is an exploded perspective view of the main components of the device of the present invention. Explanation of symbols, 1... Floor formwork, 3... Shoring, 4
... Beam, 9 ... Lower horizontal member, 11, 11 ... Bracket, 12 ... Width stopper bolt, 15 ... Beam side formwork, 16 ... Clamp, 18 ... Support, 22
...Supporting blade, 32...Beam bottom formwork.

Claims (1)

[Scope of utility model registration request] Parallel girder members are assembled at a predetermined interval on the shoring provided at the bottom of the beam, and a lower horizontal member with drop prevention protrusions provided at both ends is mounted on a rack, and both sides above the lower horizontal member are mounted. In this method, a pair of upper horizontal members are attached, which are made by attaching a hanging bracket and a horizontal lap member on the abutting sides, and a parallel girder member with a predetermined spacing in the center is attached, and the hanging bracket is placed at the center interval of the lower horizontal member. Place it in a drop-down manner, and further connect the butt brackets with a width stopper bolt,
On the upper horizontal member, a clamp with fitting legs for a slide guide suspended from the bottom surface for backing up the beam formwork at the center interval of the upper horizontal member is attached via a position-adjustable pin lock mechanism, and the upper horizontal member is attached. A telescoping beam support shoring device characterized in that a large support for floor formwork is erected on the rear end, and a height-adjustable receiving blade is rotatably fitted.