JPH0466979B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention comprises a formwork made up of a set of supports, beams, and stile panels, and the beams and stile panels are made removable while leaving the supports. This article concerns formwork shoring and shoring methods for concrete slabs.

[Conventional technology]

FIG. 6 is a construction drawing using conventional formwork, scaffolding and shoring, and FIG. 7 is a diagram showing an example of conventional permanent support. In the figure, 4 is a column, 10 is a concrete slab, 19 and 30 are large drawers, 20 and 29 are joists, 21 and 28 are plywood veneers, 23 is a top plate, 24 is a wing,
25 and 26 are handles, 27 is a column, and 31 is a pipe support, respectively.

Conventionally, in construction using formwork, joists, and shoring, the joists 20 are pulled out by 19 as shown in Figure 6.
This Ohiki 19 is received by the pillar 4.
In this way, the conventional method of constructing a concrete slab (floor board) is to place a weir (usually plywood veneer) on top of the shoring (joist, joist) and support the shoring with pillars.

Furthermore, in the example of the permanent support shown in FIG. Determine the height of the receiving blade 24 and make a large pull 30,
Assembly is carried out by determining the heights of the joists 29 and plywood panels 28. And when dismantling,
The handle 25 is lowered to remove the drawer 30 supported by the support blade 24, the joist 29, and the plywood panel 28. Therefore, the joists 29 can be removed without replacing the support columns 29.

[Problem that the invention seeks to solve]

However, in the conventional construction of concrete slabs (floor slabs), a sheath board is placed on top of the shoring, and the main pull-up is supported by pillars, which limits the ability to replace the pillars. Since the shelf life of the formwork is 17 to 28 days, the number of times the formwork is reused is small.When the formwork was dismantled, the shedding boards were fixed with nails, so it was easy to dismantle, clean up, and repair the formwork. There are precedents for permanent support, which takes time and money, but in this case, the top plate part is not adapted as a formwork, so
There was a problem in that it was necessary to make a notch in the joist in consideration of the top plate (Fig. 7b, illustration A).

The present invention solves the above problems by constructing formwork as a set of beams, panels, and supports, increasing its versatility, and making it possible for non-skilled workers to assemble and dismantle the formwork. The purpose is to provide formwork shoring and shoring methods for concrete slabs.

[Means for solving problems]

For this purpose, the concrete slab formwork support of the present invention includes a head plate attached to the upper end, a support for the support head that slides vertically, and a fixing support that holds the support for the support head and slides in the vertical direction. a first locking means for locking the wedge and the fixing wedge; and locking the fixing wedge at a position below the first locking means in a state in which the first locking means is released; Second
a column having a locking means on its head; a beam supported by a column head bracket of the column; and a stile panel supported by the beam; It is characterized by forming a formwork by the head plate of the column, the upper surface of the beam, and the upper surface of the stile panel in a stopped state,
In the shoring method, concrete is poured by constructing a formwork with the head plate of the support, the top surface of the beam, and the top surface of the stile panel while the fixing wedge is locked by the first locking means. After pouring the
The method is characterized in that the fixing wedge is unlatched by the first locking means, the fixing wedge is locked by the second locking means, and the beam and frame panel are removed, leaving the support column. .

[Effect]

In the concrete slab formwork shoring and shoring method of the present invention, the formwork is constituted by the head plate of the support, the upper surface of the beam, and the upper surface of the stile panel,
After concrete is poured, the beams and stile panels can be disassembled and repurposed, leaving the supports intact. That is, when assembling formwork for a concrete slab, first, the fixing wedge is locked to the first locking means of the column to fix the column head bracket, and the beam is supported by the column head bracket. do. The frame panels are supported by this beam. After assembling the formwork and pouring concrete in this way, the fixing wedge of the support column is released from the locked state by the first locking means and allowed to fall, and then locked by the second locking means. urge In this state, the column head bracket is held in a position below the locked state by the first locking means, so the beam and stile panel are removed below the bottom of the concrete slab, leaving the column alone. Formwork can be dismantled.

〔Example〕

Examples will be described below with reference to the drawings.

Figure 1 is an exploded layout diagram of the slab formwork shoring according to the present invention, Figure 2 is an installation diagram to which the slab formwork shoring according to the present invention is applied, and Figure 3 is the concrete of the formwork, beams, and head of the shoring. Installation diagram before hitting, 4th
The figure shows the state in which the formwork has been removed after applying mortar, and Fig. 5 is an installation view in which the slab formwork support according to the present invention is applied to a slab with beams. In the figure,
1 is a column head bracket, 2 is a beam, 3 is a stile panel, 4 is a column, 5 is a column head plate, 6 is a mounting hook, 7 is a stile panel insertion groove, 8 is a hole, 9 is a column joint. Plate, 10 is a concrete slab, 11 is a concrete beam, 12 is a beam side formwork, 13 is a separator, 14 is a beam reinforcement truss, 15 is a fixing wedge, 16 is a lower dowel, 17 is an upper dowel, 18 is a head Each pillar is shown.

In FIG. 1, the strut 4 includes the strut head bracket 1, the strut head plate 5, the mounting hook 6, the upper dowel 17, the lower dowel 16, the fixing wedge 15, the strut joint plate 9, and the head strut. 18 constitutes the head, and the column head bracket 1 and the fixing wedge 15 slide in the vertical direction, and the fixing wedge 15 is placed on the lower dowel 16 or on the column joint plate 9. It is fixed and supports the column head bracket 1. The beam 2 has a beam reinforcing truss 14 for reinforcement, a stile panel insertion groove 7, and a hole 8, and is supported by inserting the mounting hook 6 of the column head support 1 into the hole 8. . The stile panel 3 is supported by being inserted into the stile panel insertion groove 7 of the beam 2, and the set of the column head plate 5, the beam 2, and the stile panel 3 constitutes a formwork.

Figure 2 shows an example of the use of concrete slab receivers. The stage receiving the bottom of the concrete slab 10 includes a column head bracket 1, a beam 2, a stile panel 3, and a column 4, as shown in FIG.
It is constructed by combining. The details of its assembly and disassembly will be explained below with reference to FIGS. 3 and 4.

FIG. 3a is a view of the assembled state seen from the side of the beam, FIG. 3b is a view of the state of FIG. 3a seen from the right side, and FIG. 3c is an external view of the fixing wedge. In FIG. 3, the fixing wedge 15 is fixed using an upper dowel 17 and a lower dowel 16, and the column head holder 1 is supported on the fixing wedge 15. The fixing wedge 15 has a concave portion that can be disengaged from the lower dowel 16, as shown in FIG. 3c, for example, and in FIGS. The state shown is as follows.
In this state, as mentioned earlier, the mounting hooks 6 of the column head bracket 1 are inserted into the holes 8 at both ends of the beam 2.
is inserted to fix the beam 2, and the stile panel 3 is inserted into the insertion groove 7 of the beam 2 to fix the stile panel 3. As a result, the upper surfaces of the column head plate 5, beam 2, and stile panel 3 form a coplanar formwork. When pouring concrete and dismantling the formwork from this state,
By hitting the fixing wedge 15, it is moved laterally so that the concave portion is at the position of the lower dowel 16. Then, the lower dowel 16 is no longer engaged and the fixing wedge 15 falls down. FIG. 4 shows the state at the time of disassembly.

FIG. 4a is a view of the state at the time of disassembly, seen from the side of the beam, and FIG. 4b is a view of the state of FIG. 4a, seen from the right side. As shown in FIG. 4, the fixing wedge 15, which has fallen down due to its engagement with the lower dowel 16, is locked by the support joint plate 9, and as a result, the beam 2 and the stile panel 3 are moved with the support 4 remaining. It can be removed up to.

Figure 5 shows an example of how the beam support is used. A stage for receiving the beam bottom of a concrete beam 11 is made by combining a column head support 1, a beam 2, a stile panel 3, and a column 4, and a beam side formwork 12 is assembled thereon. Then, the stile panel 3 is placed on the beam side formwork 12 to form a formwork for the concrete beam 11.
Note that separators 13 may be used to ensure the beam width.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, the formwork can be assembled into a set of beams, panels, and supports by forming shedding boards into panels, inserting and fixing them into beams, and supporting the beams with supports. Because it is constructed with This makes it possible to assemble and dismantle the formwork easily even if you are not a skilled worker. In addition, unlike when using permanent supports, there is no need to make special work such as cutouts in the panels, and there is no need to fix the shedding boards with nails, so it takes time to dismantle, clean up, and repair the formwork. You can save time, effort, and expense.

[Brief explanation of the drawing]

Figure 1 is an exploded layout diagram of the slab formwork shoring according to the present invention, Figure 2 is an installation diagram to which the slab formwork shoring according to the present invention is applied, and Figure 3 is the concrete of the formwork, beams, and head of the shoring. Installation diagram before hitting, 4th
The figure shows the state in which the formwork has been removed after applying mortar, Figure 5 is an installation diagram of the slab formwork shoring system according to the present invention applied to a slab with beams, and Figure 6 shows the conventional formwork, sills and shoring. Construction drawing when using construction, No. 7
The figure shows an example of conventional permanent support. 1... Strut head bracket, 2... Beam, 3...
Frame panel, 4... Strut, 5... Strut head plate, 6... Mounting hook, 7... Stile panel insertion groove, 8... Hole, 9... Strut joint plate, 10... Concrete slab , 11... Concrete beam, 12... Beam side formwork, 13... Separator, 14... Beam reinforcement truss, 15... Fixing wedge, 16... Lower dowel, 17... Upper dowel,
18...Head support, 19 and 30...Obiki, 20 and 29...Joist, 21 and 28...Plywood veneer, 22
...Light gauge, 23...Top plate, 24...Blade, 25 and 26...Handle, 27...Strut, 31...Pipe support.

Claims (1)

[Scope of Claims] 1. A head plate attached to the upper end, a column head bracket that slides in the vertical direction, a fixing wedge that holds the column head bracket and slides in the vertical direction, and the fixing wedge is connected to each other. a first locking means for locking the fixing wedge; and a second locking means for locking the fixing wedge at a position below the first locking means when the first locking means is released. The column includes a column provided at the head, a beam supported by the column head bracket of the column, and a stile panel supported by the beam, and the column is mounted with the fixing wedge locked by the first locking means. Formwork support for concrete slabs, characterized in that the formwork is composed of a head plate, the top surface of a beam, and the top surface of a stile panel. 2. A head plate attached to the upper end, a prop head bracket that slides in the vertical direction, a fixing wedge that holds the prop head bracket and slides in the vertical direction, and a first lock that locks the fixing wedge. A strut having a stop means and a second locking means for locking the fixing wedge at a position below the first locking means when the first locking means is released; A beam supported by the column head bracket of the column, and a stile panel supported by the beam, and with the fixing wedge locked by the first locking means, the column head plate and the beam are connected. The upper surface and the upper surface of the stile panel constitute a formwork and concrete is poured. After the concrete is poured, the fixing wedge is unlatched by the first locking means and the second locking means is inserted. A concrete slab shoring method characterized by locking fixing wedges and removing the beam and stile panel, leaving the supports in place.