JPH0470468A - Transferable form timbering for floor slab execution - Google Patents

Abstract

PURPOSE:To enhance the efficiency of construction by connection-reinforcing a plurality of fellow struts, built in a base form, by a horizontal tire rod and a bracing and providing a screw-driven jack and a caster in the base form and further a large acceptor and a jack in a strut upper end. CONSTITUTION:Timbering 1 is formed of a base 7, base form 2 of a tire rod 8 on bundle materials 9, 9 built in both front and rear ends of the base 7, plurality of struts 3, bracings, large bracings 5, work scaffold 6, etc. Both right/left end parts of the tire rod 8 are extended by a predetermined length to the outside by the bundle materials 9, 9 to respectively mount screw-driven jacks 10, 10 in the point end part and a caster 11, runnable in any direction, in the lower part, of the girth. A screw-driven jack 23 is mounted to an upper end part of each strut 3, 3 to mount a large acceptor 24 to an upper end part of the jack 23, and height of the large acceptor 24 is adjusted by a handle 25. In this way, elimination of form construction work and the efficiency can be promoted.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a movable formwork support for floor slab construction, which is mainly used for constructing reinforced concrete slabs with large floor heights and large floor areas. It is something.

[Conventional technology]

When constructing a reinforced concrete floor slab, the shoring of the floor formwork is done by erecting many pipe supports under the floor formwork at regular intervals in the front, back, left and right, connecting the pipe supports with connecting materials, and then adding support for the floor formwork. It is constructed by reinforcing it.

Another method is to use a scaffolding pipe or torii form frame material instead of the pipe support boat, and install a large support on the top of it using jacks to provide support.

Furthermore, recently, a type of shoring has been used in which the pipe supports and the horizontal connecting members between the pipe supports are manufactured as special members, and these dedicated members are connected by pins or the like.

[Problem to be solved by the invention]

However, when replacing (moving) any of the above-mentioned shoring structures, it is necessary to dismantle the entire structure and reassemble it each time.

For this reason, if the area of the reinforced concrete slab to be constructed is large, the time and effort required to assemble and dismantle it will be enormous.

This invention was proposed in order to solve the above-mentioned conventional problems, and when changing the shoring structure, the assembly and
The object of the present invention is to provide a movable formwork support for floor slab construction that eliminates dismantling work and makes formwork work more efficient.

[Means to solve the problem]

This invention relates to movable formwork support for floor slab construction, in which multiple supports are erected on top of a base frame, the supports are connected to each other by multiple horizontal connecting members, and reinforced by multiple braces. In addition, the base frame is provided with a screw type jack and casters for raising and lowering the base frame, and the upper end of the pillar is provided with a large support and a screw type jack for raising and lowering the large support. This achieves the above objective.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a description will be given based on an embodiment illustrating a shoring structure according to the present invention.

The shoring 1 is composed of a base frame 2, a plurality of supports 3, braces 4, major braces 5, work scaffolding 6, and the like.

The base frame 2 is constituted by a base 7.7 and a connecting member 8.8 as a rectangular frame.

Usually, at least two foundations 7.7, and depending on the scale of the shoring 1, three or more foundations 7.7 are installed substantially in parallel to increase support strength.

Bundles 9, 9 are installed at both front and rear ends of the foundations 7, 7, and connecting members 8, 8 are constructed on top of the bundles 9, 9.

If the scale of the shoring 1 is large, support can be provided by erecting bundles 9 and 9 in the middle of the foundations 7 and 9 and erecting the ties 8 on top of them, as in the case of the foundation 7. Strength can be increased.

Further, by configuring the base 7 and the connecting member 8 to be expandable and contractible, the width of the shoring 1 to be constructed can be freely changed.

Both left and right ends of the connecting member 8 extend a predetermined length outward from the bundle members 9, 9, and a screw jack 10, 10 is attached to the tip end thereof.

A caster 11 is attached to the lower end of each screw type jack 10, and a handle 12 is attached to the middle portion.

The caster 11 can run in any direction, front, rear, left, or right by freely rotating the support shaft 11a.

In addition, the base frame 2 can be freely raised and lowered by operating the handle 12, so that the base frame 2 can be freely raised and lowered.
can be placed close to the floor or raised above the floor.

Pillar supports 13.13 are built on the foundations 7, 7 at regular intervals in the longitudinal direction, and the pillar supports 13.1
3, pillars 3, 3 are each installed substantially vertically.

The support post 13 is formed to have a substantially square cross section, and the support post 3 is formed into a cylindrical shape that is slightly larger than the support support 13 and has a square cross section.

Each pillar 3 is erected on a foundation 7 by inserting a pillar receiver 13 into its lower end.

A post fixing metal fitting 14 is attached to the intermediate portion of the post support I3.

A fixing nut 15 is welded to a substantially central portion of the vertical portion 14a of the post fixing fitting 14, and a through hole 14b is formed continuously to the screw hole of the fixing nut 15.

A column fixing bolt 16 is screwed into the fixing napft 15, and its tip can come into contact with the side surface of the column 3.

The lower ends, intermediate parts, and upper ends of the columns 3, 3 are connected by a plurality of horizontal connecting beams 17, 17, and are strongly reinforced by a plurality of braces 4 and major braces 5.

A clamp 18 is used to connect the pillar 3, the horizontal connecting member 17, and the main brace 5, which can connect members in three directions at the same time.
By using this, the number of connecting fittings can be saved and assembly can be facilitated (see Fig. 4).

Further, the horizontal connecting member 17 and the brace 4 are connected by a configuration as shown in FIG. 5.

To explain its configuration, a bracket 19 is attached to a clamp 18.
is provided protrudingly, and a connecting shaft 20 is provided approximately at the center of the bracket eye 9.
is provided protrudingly, and a stopper 21 is further attached to the connecting shaft 2°.

On the other hand, a connecting hole 22 is formed at the tip of the brace 4.

The brace 4 is connected to the horizontal connecting member 17 by passing the connecting shaft 2o through the connecting hole 22, and is prevented from coming off by the stopper 2.

A screw 2/7 key 23 is attached to the upper end of each support column 3, 3, and a large support 24 with a generally groove-shaped cross section that opens directly upward is attached to the upper end of the screw type 2/7 key 23. .

In addition, a handle 25 is attached to the screw type jack 23, and by turning the handle 25,
4 height adjustments can be made.

Then, on top of the said large offer 24, 24, large number 26
can be erected, and a floor slab formwork can be constructed on top of the main drawer 26.

Further, a work scaffold 6 is laid on the horizontal connecting material F on the intermediate floor, and it is possible to assemble and dismantle the floor formwork on the work scaffold 6.

To move the shoring 1, turn the handle 12 of the screw jack 10 to lift the base frame 2 off the floor, and push it to the destination.

In addition, the base 7 of the frame frame 2, the pillar 3, and the horizontal connecting material 17
Also, for the braces 4 and the major braces 5, square mesh beams are used, but the present invention is not limited to this, and round steel pipes may also be used.

Further, the diameters and installation intervals of these members shall be appropriately determined according to the scale of the shoring 1 to be constructed.

[Effects of the Invention] Since the present invention has the above configuration, it has the following effects.

■ When changing (moving) the shoring, there is no need to dismantle it, which greatly simplifies formwork work and improves efficiency.

■ Each pillar is not built integrally on the base frame, but is built so that it can be raised and lowered by a certain amount, and the upper end of the pillar is a large frame on which the floor form is mounted via screw jacks. Since the underwriting is installed, the height of the large underwriting can be adjusted freely. Therefore, it is possible to freely respond to changes in the height of the floor formwork to be constructed.

■ Since the work scaffold can be installed on the horizontal connecting material within the framework of the three-dimensional shoring, the work scaffold frame, which was conventionally assembled separately from the shoring, is no longer required, and therefore the work scaffold frame can be used for Assembling work of temporary materials and work scaffolding frames can be omitted.

[Brief explanation of the drawing]

Figures 1 to 5 show one embodiment of the present invention. Figure 1 is a perspective view of a movable formwork support for floor slab construction, Figure 2 is a perspective view of the lower end of the support, and Figure 3 is a perspective view of the lower end of the support. The figure is a perspective view of the upper end of the column, FIG. 4 is a partial side view of the middle part of the movable formwork support for floor slab construction, and FIG. 5 is a plan view of the connecting portion of the brace. ■... Shoring, 2... Base frame, 3... Support, 4
...Wrong line, 5...Major line difference, 6...Work scaffolding,
7... Foundation, 8... Connecting material, 9... Bundling material, lO・
... Screw type jack, 11... Caster 12... Handle, 13... Strut holder, 14... Strut fixing metal fittings, 15... Fixed nand, 16... Strut fixing bolt,
17...Horizontal connecting beam, 18...Clamp, 19...
・Bracket, 20...Connection shaft, 21...Stock collar 122...Connection hole, 23...Screw type insert,
24... Large undertaking, 25... Handle, 26...
・Big draw.

Claims (2)

[Claims] (1) To erect multiple columns on top of the base frame, connect the columns with multiple horizontal connecting members, reinforce with multiple braces, and raise and lower the base frame on the base frame. A movable formwork shoring system for constructing floor slabs, characterized in that a screw jack and casters are provided, and a large support and a screw jack for raising and lowering the large support are provided at the upper end of the support. (2) The movable formwork support for floor slab construction according to claim 1, characterized in that the support, the horizontal connecting material, and the brace are connected by a clamp that can connect the three-way members simultaneously. Engineering.