JPS58564A - Assembling of mold frame of concrete building - 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 formwork assembly method for constructing concrete buildings.

Conventional formwork construction for constructing concrete buildings involves assembling column formwork, beam formwork, slab formwork, and wall formwork in sequence according to the existing layout, and then running thick timbers along the outside of each formwork. In addition, in column forms, beam forms, and wall forms, separators and fastening metal fittings were used to maintain a constant distance between corresponding surfaces and at the same time to connect them to end pieces.

In addition, although each formwork is generally joined by driving nails, using nails or cutting the formwork at present will damage the formwork and make it impossible to reuse it. In addition, there are disadvantages in that it takes time to assemble and dismantle the formwork, and the work and equipment costs are high.

This invention was made in order to eliminate the above-mentioned drawbacks, and allows assembly and disassembly work to be performed easily and efficiently, allows the formwork to be reused many times, and makes it possible to formwork of various sizes. The purpose is to provide a formwork assembly method that allows buildings to be constructed freely by simply changing the combination of formwork.

The structure of this invention is that a beam formwork is constructed between the upper ends of the column formworks,
Thick timbers for supporting the Nurapu formwork are lined up and erected between the thick timbers installed in advance on the sides of this beam formwork, and the slab formwork is laid on these thick timbers, and the column formwork and beam A wall formwork is provided in the area surrounded by the formwork.

Hereinafter, the present invention will be explained based on embodiments shown in the accompanying drawings.

As shown in the figure, the formwork structure for constructing a concrete building includes a column formwork 1, a beam formwork 21 installed between the upper end portions of the column formwork 1, and a structure surrounded by the beam formwork 21. It is composed of a slab formwork 51 laid in a portion, and a wall formwork 61 provided in a portion surrounded by a column formwork 1 and a beam formwork 21.

The column formwork 1 has four formwork units 3 arranged in a frame shape, each having a flange 2 projecting outward at an angle of 45° on both sides.
It is assembled by joining the overlapping flanges 2 with a general nut 4.

As shown in FIG. 1, the structure of the column formwork 1 includes a lower formwork 1a.
, an intermediate formwork 1b, and an upper formwork 1C are used, and the intermediate formwork 1b is formed in a cross-sectional shape that overlaps the outer surfaces of the upper and lower formworks 1a and ic, and the lug portions with the upper and lower formworks 1a and 1C have a vertical height. It is the adjustment part of

The vertical height adjustment part is the flange 2 of the upper and lower formworks 1a and lc.
The vertical height can be adjusted at intervals of 60 bolt holes by bolt holes 5 with an arrow pitch provided in the middle formwork 1b and small pitch holes 6 provided in the 7 langes 2 of the intermediate formwork 1b. It has become.

On the inner surface of the intermediate formwork 1b, there is a step equal to the thickness of the upper and lower formworks 1a and IC, so as shown in FIG. 5, the intermediate plate 7 is stretched over this step. Further, the flanges of the intermediate formwork 1b are similarly closed with intermediate plates or packing.

Since the four corners of the column formwork 1 are joined by flanges 2, the internal pressure resistance is greatly improved, and the internal pressure when concrete is poured can be effectively supported. There is no need to support it.

In the case of FIGS. 1 and 5, the opposing 7 langes 2 are connected by a reinforcing member 8 that is fastened to the 7 langes 2 with bolts and nuts 4, and connecting members 9 that connect both side reinforcing members 8 to the column formwork 1. Internal pressure resistance has been further improved at the bottom and connecting parts.

In the upper formwork 1C of the column formwork 1, the connection part 10 with the beam formwork 21 protrudes in the connection direction of the beam formwork 21.1. Furthermore, it is formed to accommodate each beam width.

The connection part 10 with the beam formwork 21 is connected to the upper formwork 1C of the column formwork 1.
It is formed by providing a notch for the height and width of the beam, and attaching the side formwork 10a and the bottom formwork 10b to the outside of this notch. There are various patterns, such as cases in which the beams are continuous at the end of the structure, cases in which the beams protrude in three directions, three directions, and four directions, and these patterns can be freely accommodated.

A beam holder 11 is attached to the outer surface of the connecting portion 1o in the column form 1, so that the beam form 21 assembled on the ground can be installed between the upper ends of the column form 1.

As shown in FIG. 2, this beam holder 11 has supporting pieces 13 protruding from a two-pronged part 12 that is connected to a flange 2 with bolts and nuts 4. The formwork iQa is connected to the formwork iQa by a hinge type receiver 14.

Next, the beam formwork 21 includes a side formwork 24 having upper and lower flanges 22 and 23, a bottom formwork 25 extending from the lower part of the side formworks 24 on both sides, and an outside of the side formwork 24. The upper and lower end pieces 26 and 27 are arranged vertically.
27, as shown in FIG. 7, are connected in parallel by a spacing plate 28 interposed between the thick end pieces and a connecting fitting 29 that connects each thick end piece and the spacing plate 28.

The upper end piece 26 and the upper flange 22 are connected using a plurality of connecting fittings 30. This connection fitting・30 is the 6th
As shown in the figure and FIG.
4, an insertion rod 3 that is inclined with respect to the longitudinal direction of the end thick material 26;
5, and the flange 22 has this insertion rod 3.
A slanted hole 36 into which the 5 is inserted is provided.

As shown in FIG. 6, the connection fittings 30 are those in which the insertion rods 35 are inclined in opposite directions at both ends of each formwork, and the inclined holes 36 are
is also formed to correspond to this.

As a result, the upper end thick material 26 and the side formwork 24 are coupled together without any movement in a plane.

The main components of the lower end thick material 27, the lower flange 23, and the bottom formwork 25 are the two insertion pieces 37.
38, and the inclined holes 40, 41 provided in the lower flange 23 and the bottom formwork 25 are used to connect and integrate them.

In the case shown, the upper and lower flanges 22, 23 are attached by means of hinges 42, in which inclined holes 35, 40 are provided, and if necessary, the lower flange 23 and the bottom formwork 25 are fitted with bolts and nuts. The connection may be reinforced with

The beam formwork 21 is constructed by arranging the side formworks 24 and bottom formworks 25 in the required number in order so as to match the spacing between the column formworks 1, and also using thick pieces 26. 2
7, the rigidity is integrated, and after assembly on the ground,
By placing the end of the upper end thick member 26 on the beam support fitting 11 soil, the construction between the column forms 1 can be easily performed.

Although not shown in the drawings, this beam formwork 21 is provided with a lap portion between the formworks, and this portion forms a length adjustment portion for changing the interval between the column formworks 1.

Therefore, the length of the lower end thick members 26 and 27 can be freely adjusted in the middle.

Upper thick end material 26 of both side beam formwork 21 constructed between column formwork 1
In between, a large number of end pieces 43 for supporting the slab formwork 51 are installed in parallel by placing their ends on the earth end pieces 26.

The slab formwork 51 is formed in a rectangular shape, and the surrounding beam formwork 21
so as to fill the space surrounded by the flange 22 in
The flange 22 and the slab formwork 51 adjacent thereto are sequentially laid on the end thick material 43, and the adjacent formworks 51 are connected with the first connection fitting 52, and the adjacent formworks 51 are connected with each other by the second connection fitting 53.

As shown in FIG.
A right-angled slide rod 55 is attached to the overlying plate 54, and each of the seven flange 22 and the plate 54, the slide rod 55 and the slab formwork 51 are connected to the plate 54 and the slide rod 5.
The flange 22 and the formwork 51 are connected by fitting the protrusions provided at the flange 22 into the small holes of the formwork 51, and the flange 22 and the formwork 51 are integrated so that they do not move in a plane.

The second connecting fitting 53 is constructed by connecting two plates that sandwich the formwork 51 through a hinge part, and fitting protrusions provided on the corresponding surfaces of both plates into small holes formed around the formwork. The second connecting fittings 53 are of two types, one for intermediate use 53a and one for corner use 53b, as shown in FIG. 3.

Note that the end pieces 43 that support the slab formwork 51 are supported by pipe supports 45 via crossbars 44 arranged at appropriate intervals at their lower portions.

Additionally, the wall formwork 61 is connected to the beam formwork 21 at the top and the column formwork 1 at both sides, and is assembled to form a window or doorway if necessary. The connection structure between the frame 1 and the wall formwork 61 is also
The figure shows the connection structure between the beam formwork 21 and the wall formwork 61, and the column formwork itself is similar to the column formwork 1 as shown in Fig. 1.
A, an intermediate formwork 61b, and an upper formwork 61C, and the upper and lower formworks 61a, 61C and the lap portion of the intermediate formwork 61b overlaid on the outer surface thereof serve as a vertical height adjustment section.

The wall formwork 61 is assembled by connecting seven flanges 62 provided on both sides with bolts and nuts, and the flanges 6
By connecting the horizontal thick members 63 placed horizontally so as to abut against the separators, the internal pressure when concrete is poured is supported. , as shown in Figure 5,
A 45' insert piece 64 bent obliquely outward is provided on the side edge of the wall form 61, a corner block 15 is attached to the wall communication opening of the column form 1, and the inclined groove 16 provided in the corner block 15 is inserted into the corner block 15. Insert piece 64
It is designed to insert .

As shown in FIG. 4, the connecting portion between the wall formwork 61 and the beam formwork 21 constitutes the lower formwork of the beam formwork 21 with a flange 65 provided at the upper edge of the upper formwork 61C, and the connection fittings 39 It is designed to be connected to the lower end thick member 27 of the beam formwork 21 using.

The present invention has the above-mentioned structure. First, the column frame 1 is assembled and installed at a predetermined position, and the beam holder 11 is attached to the upper part of the column frame 1.

Also, the beam formwork 21 is assembled on the ground. This beam formwork 21 is formed into a length corresponding to the spacing between the column formworks 1 by connecting the side formwork 24, the bottom formwork 25, and the upper and lower end thick members 26 and 27 with connecting fittings 30 and 39. be done.

1. Lift the beam formwork 21 with a crane, place the ends of the upper end thick members 26 fixed on both sides on the beam support fittings 11, and construct between each column formwork 1.

The connection between the connecting part 10 in the column formwork 1 and the beam formwork 21 is made by inserting a thick member 39 into an inclined hole provided in the 7-lunge in the side formwork 10a of the connecting part 1o, as shown in FIG. Part 10
are also fixed using similar fittings.

Next, the thick pieces 43 are sequentially arranged and installed between the upper thick pieces 26 of the parallel beam forms 21, and the slab forms 51 are sequentially laid on the thick pieces 43, and the flanges 22 of the beam forms 21 and The slab formwork 51 is connected with the first connection fitting 52, and each slab formwork 51 is connected with the second connection fitting 53.
3 is supported by crossbars 44 and pipe supports 45, and the gaps created between the respective forms are closed by pasting tape or the like.

In addition, a wall formwork 6 is installed in the area surrounded by the column formwork 1 and the beam formwork 21.
1 and reinforce the outer surface with thick timber.

With the reinforcing bars incorporated inside the formwork structure assembled in this way, concrete is poured in the order of column formwork 1, wall formwork 61, beam formwork 21, and slab formwork 51. After solidification, disassembly can be carried out in the reverse order of assembly.

As described above, according to the present invention, a beam formwork is erected between the upper ends of the column formwork, and slab supporting end members are successively erected between the end members of the beam formwork parallel to both sides. , Slab formwork was sequentially laid on top of this thick timber, and wall formwork was assembled in the area surrounded by column formwork and beam formwork, so that the constituent members of formwork for constructing concrete buildings were constructed. It is possible to standardize the structure to a certain degree, and to assemble various forms using a small number of structural members.

In addition, each component can be fixed without the need for nailing, making it possible to reuse it many times.Furthermore, it can be assembled and dismantled efficiently, significantly reducing equipment costs and work costs. I can do it.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional front view of a formwork assembled using the method of the present invention, Fig. 2 is an enlarged partially cutaway plan view of the main parts of the same, Fig. 3 is a perspective view of the same, and Fig. 4 is the same as the above. Fig. 5 is an enlarged cross-sectional view showing the connection between the column formwork and wall formwork, Fig. 6 is an enlarged plan view showing the connection between the beam formwork, and Fig. 7
The figure is also a longitudinal sectional view showing the beam formwork. DESCRIPTION OF SYMBOLS 1... Column formwork, 11... Beam bracket, 15... Corner board, 21... Beam formwork, 24... Side formwork, 25...
Bottom formwork, 26.27.43.63... end material, 51
...Slab formwork, 61...Wall formwork patent applicant: Yoshiji Onishi / Agent: Kama 1) Text 2 '°j Figure 6 Figure 7

Claims (1)

[Claims] Attach a beam support bracket to the upper outer surface of the column formwork, and install the beam formwork assembled by placing thick timbers along both sides between the column forms by placing the ends of the thick timbers on the beam brackets, A large number of slab formwork supporting end members are lined up and erected between the end members of parallel beam formwork, and then the slab formwork is laid on the slab formwork supporting end members. Formwork assembly method for concrete buildings