JPH05311785A - Buried form connection unit - Google Patents

Abstract

PURPOSE:To easily and effectively transport a buried form connection unit from factory to construction site as well as make operations easier. CONSTITUTION:In a buried form connection unit 31 formed by integrally connecting burying form 13, burying parts having couplers buried in several positions of the form 13 and connectors having hooks to be connected with the couplers of the burying parts are provided in addition to the form 13. By connecting the hooks of the connectors with the couplers of the burying parts set in the form 13, many of the form 13 can be integrally connected to form a buried form connection unit 31.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embedded formwork connecting unit formed by connecting embedded formwork.

[0002]

BACKGROUND OF THE INVENTION Conventionally, plywood formwork manufactured from South Sea timber has been used for formwork construction, but nowadays, due to serious problems such as environmental destruction due to deforestation, use of plywood formwork Is not preferable in terms of environmental protection. Therefore, a buried formwork method using a precast concrete formwork is being studied.

In this buried formwork method, concrete is cast into a precast concrete formwork and then left on the concrete surface without being removed from the mold to form a part of the member.
That is, it has a synthetic structure, and has a feature that the steps of dismantling the formwork, curing and finishing after hardening the concrete can be omitted. And if the size of the precast concrete formwork is set to a standard size such as steel formwork size, the work of allocating the formwork to the structure is relatively similar to the method using the current plywood formwork. It has the feature that it can be performed easily.

By the way, the precast concrete formwork is a heavy product since it is a concrete product. Therefore, in the formwork using the precast concrete formwork, a large precast concrete formwork is produced on site from the manufacturing plant. It is extremely troublesome to carry it to the building and to handle it thereafter, which causes a rise in construction costs.

[0005]

DISCLOSURE OF THE INVENTION It is an object of the present invention to provide an embedded formwork connecting unit using an embedded formwork which is easy to carry from a factory to a site and can be easily operated. The above-mentioned object of the present invention is an embedded formwork unit unit in which a plurality of embedded formworks are connected and integrally configured, and the embedded formwork and the objects to be embedded at a plurality of positions of this embedded formwork. An embedding member having a hooking portion, and a connecting body having a plurality of hooking portions for hooking to a hooked portion of the embedding member. The hooking portion of the connecting body is embedded. This is achieved by an embedded formwork unit unit in which a plurality of embedded formwork units are connected and integrated by being hooked on a hooked portion of an embedding member embedded in the formwork.

That is, since the buried formwork in which the embedding member is embedded can be connected by the connecting body to form the buried formwork connected body unit, the buried formwork is transported from the factory to the site. As it is, it is easy to carry and handle,
In addition, the hoist can be used as an embedded formwork connecting unit that has been enlarged in the field to enable efficient construction.
As the connecting body for connecting the embedded formwork, it is possible to use one in which hook portions are provided at four corners of the connecting body, or one in which two hooks are provided at both left and right ends of the connecting body.

[0007]

1 to 33 show an embodiment of an embedded formwork connecting body unit according to the present invention. FIGS. 1 and 2 are a plan view and a side view of a connecting jig (first embodiment). FIG. 3 is a plan view of the connecting jig (second embodiment), FIG. 4 is a sectional view of the embedding jig, and FIGS. 5 and 6 show fixing jigs in the connecting jig (first embodiment). FIG. 7 is a plan view and a side view in the state, and FIG.
FIG. 8 is a perspective view of a buried form (second embodiment), FIG. 9 is a perspective view of a buried form (third embodiment), and FIG.
Is a perspective view of the embedded formwork (fourth embodiment), FIG. 11 is a perspective view of the embedded formwork (fifth embodiment), FIG. 12 is a sectional view of the embedded formwork (sixth embodiment), and FIG. FIG. 15 is a cross-sectional view of the embedded formwork (first embodiment) connected by a jig (first embodiment), and FIG. 14 is a perspective view of the plurality of embedded formwork connected together. FIG. 16 is a plan view showing a state in which a plurality of embedded molds are connected, FIG. 17 is an explanatory view of a foam tie, and FIG.
Is an explanatory view of the external supporting work connecting jig, FIG. 19 is an explanatory view when the foam tie is attached to the embedded formwork, FIG. 20 is an explanatory view of the arrangement condition of the external supporting work, and FIG. 22 to 24 are explanatory views of the connection state of the separator, FIGS. 25 and 26 are explanatory views of the connection state of the U-shaped connection jig and the external support, and FIG. 27 is the U-shaped connection. FIG. 28 is an explanatory view of the jig use situation, FIG. 28 is an explanatory view of the connection state of the embedded formwork, and FIGS. 29 to 33 are explanatory views of the connection state of the embedded formwork connected unit and the internal support frame.

In the drawings, reference numerals 1 and 2 denote embedded formwork connecting jigs. As shown in FIGS. 1 to 3, a split pin type projection 4 is provided on a rectangular frame body having a large number of cutouts 3. It was built upright. The material for the embedded formwork connecting jigs 1 and 2 has a tensile strength of about 300 to 500 kgf / cm ² , a heat resistant temperature of 70 ° C. or higher, and is highly acid and alkali resistant, such as plastic. And metal materials are used.

The buried formwork connecting jig 1 is, as shown in FIG.
One split pin type projection 4 is erected at each of the four corners, and the embedded formwork connecting jig 2 has two split pin type projections 4 symmetrically erected as shown in FIG. It is a thing.
These buried formwork connecting jigs 1 and 2 are appropriately used according to the situation. The split pin type projection 4 is divided into four as shown in FIGS. 1 to 3, and a hook portion (claw) 5 is provided at the tip.
Since it is configured, it is inserted into the below-mentioned embedded formwork embedding jig while bending, and after insertion, it is restored and hooked to the hooked part of the embedded formwork embedding jig. Has been done.

Reference numeral 6 denotes an embedded formwork embedding jig which is embedded in the installed formwork, and is made of the same material as the embedded formwork connecting jigs 1 and 2 into a substantially truncated cone shape. A flange portion 7 and a protruding piece 8 are provided on the outer peripheral side wall portion of the inserting jig 6, and are configured so as not to be removed from the embedded embedded formwork. Further, as shown in FIG. 4, a hooked portion 9 is provided inside the buried formwork jig 6, so that when the split pin type projection 4 is inserted, the hooking portion 5 becomes It is configured to be hooked on the hooked portion 9.

The opening of the embedded formwork embedding jig 6 is covered with, for example, a metal foil, and when the embedded formwork embedding jig 6 is embedded in the embedded formwork, the embedded formwork The material (concrete material) is configured so as not to enter the inside of the embedded formwork embedding jig 6. And, when the embedding jig 6 for embedding is to use the reinforcing bar to be described later in the embedding form,
It is also used as a spacer for this reinforcement.

Reference numeral 10 denotes a fixing jig made of a metal material or the like, which is arranged so as to surround the embedded formwork connecting jig 1 as shown in FIGS. Used to promote the integration of the buried formwork with the concrete when not used. Reference numeral 11 denotes an embedded formwork connecting jig 1 so that the same embedded formwork connecting jig 1 (2) can be used when forming embedded formwork connecting body units having different thicknesses.
It is an adjusting ring arranged between (2) and the embedded formwork embedding jig 6.

Reference numeral 12 is a binding pin. As shown in FIG. 13, the binding pin 12 is fitted to the inner wall of the opening of the split pin type projection 4 to expand the split pin type projection 4 from the inside. Since the embedded form connecting jig and the embedded form are firmly connected to each other, the embedded forms are firmly connected to each other. Reference numerals 13a to 13f are buried formwork, and the buried formwork 13a to 13f are composed of ordinary concrete, high-strength concrete, various fiber-reinforced concrete, polymer-impregnated concrete, resin concrete, expansive concrete, etc. 14 is buried. The dimensions of the embedded molds 13a to 13f are the same as those of the existing steel molds. For example, the width is about 150 to 600 mm and the length is 6 mm.
The thickness is about 00 to 1800 mm and the thickness is about 30 to 50 mm. Then, as shown in FIG. 7 to FIG. 9, the opening of the embedded formwork embedding jig 6 is embedded so as to be the back side (the side integrated with the concrete) of the embedded formwork 13a to 13f. It is embedded in the formwork 13a to 13f, that is, the embedded formwork connecting jig 1 (2) is attached from the back side of the embedded formwork 13a to 13f.

When the fixing jig 10 is attached to the embedded formwork connecting jig 1 to promote fixing to concrete, two embedded formwork jigs 6 are installed at each of the four corners as shown in FIG. When the buried mold 13a is buried and the fixing jig 10 is not used, as shown in FIG. 8, one buried mold 13b is buried in each of the four corners. Used.

As shown in FIG. 7 and FIG.
It is considered that the tapered portion 15 and the non-tapered portion 16 are alternately formed on the side portion, and that the entire ridge portion is scraped off to form the tapered portion 15 as shown in FIG. When the buried formwork is connected in a planar shape, the buried formwork 13a, 13b of the type shown in FIGS. 7 and 8 in which the tapered portions 15 and the non-tapered portions 16 are alternately formed on the side portions are used. That is, when the embedded formwork having the tapered portion 15 is used, the cross section of the connection part becomes substantially V-shaped as shown in FIG. 13 when the embedded formwork is connected, and the concrete is easily filled. or,
The non-tapered portion 16 is formed because the embedded formwork is unlikely to bend at the connecting portion even if some force is applied.

On the other hand, when the embedded formwork is to be a curved connecting unit, the embedded formwork 13c of FIG. 9 type.
Is used. This is because if the non-tapered portion is configured like the embedded formwork of FIGS. 7 and 8, it cannot be connected in a curved shape. Further, as shown in FIG. 10, it is possible to provide a separator hole 17 in the embedded form, and when the separator or an external support connection connecting jig described later is used, it is extremely necessary that the separator hole 17 is formed. It will be convenient.

Further, as shown in FIG. 11, the buried formwork can be provided with a groove 18 on the surface (on the side where concrete is not driven), and when a U-shaped connecting jig described later is used, The formation of the groove 18 is extremely convenient. Although not shown in the drawing, a separator hole 17 and a groove 18 can be provided at the same time in the buried form, and when a U-shaped connecting jig described below and a separator or an external support connecting jig are used at the same time, , This separator hole 17 and groove 1
It would be extremely convenient if 8 are provided at the same time.

Further, as shown in FIG. 12, it is also possible to embed an inner support work tightening and embedding jig 19 in the embedding form. When the inner support work frame is attached, this inner supporting work tightening embedding cure is performed. It is extremely convenient that the tip of the tool 19 is attached so that it projects to the back side. Embedded formwork 13a-1
As shown in FIG. 7, for example, the joint material 20 is provided on the side of 3f.
(A stretchable back-up material having waterproofness and durability against ultraviolet rays) is attached.
It is configured so that concrete does not leak from the joint portion of the buried formwork by 0.

Reference numeral 21 is a foam tie, which is a buried formwork 13.
It is attached to the front side of d and is fixed from the back side by the PECON 22. Since the foam tie 21 has a brim-shaped portion in contact with the embedded mold 13d,
The vertical state of the foam tie 21 with respect to the embedded mold 13d is maintained. Reference numeral 23 denotes an external supporting and connecting jig, which is used when the foam tie 21 is not directly connected to the buried form 13d. Then, the external supporting and connecting jig 23 is attached to the front side of the embedded formwork 13 like the foam tie 21 and fixed with a nut 24 from the rear side. This external support work connection jig 23 is a buried formwork 1
The portion contacting with 3d is formed into a brim, and the embedded formwork 1
The vertical state of the external support connection connecting jig 23 with respect to 3d is maintained.

When the external supporting and connecting jig 23 is used for connecting the embedded formwork 13d and the external supporting work, the external supporting and connecting jig 23 is used as shown in FIG.
3d and a washer 25 are provided with an external support between them, and the tip of the external support is fastened with a nut 26 to connect the external support and the embedded formwork 13. Further, as shown in FIG. The front end portion of the foam tie 21 that protrudes from the left end of the external support work connection jig 23 through the inside of the work connection jig 23 is fastened with the nut 27 to connect the embedded formwork connector units 31 that face each other. Is configured. Reference numeral 28 denotes a separator, which is disposed between the buried formwork connected body units 31 facing each other, and maintains the interval between the buried formwork connected body units 31 against the lateral pressure of the cast-in-place concrete.

Depending on the situation, the separators 28 are previously attached to the respective embedded molds 13 and the separators 28 are joined together after the assembly, and as shown in FIG. The separator 28 may be attached only to the unit 31. Reference numeral 29 denotes a correction member, which is provided at a position where the foam tie 21 is independently connected to another embedded formwork connecting unit without using the external support connection connecting jig 23 and the inner diameter of the separator hole 17 and the form tie 2
It is used to compensate for the difference in the outer diameter of No. 1 and the difference in the thickness of the nut 24, and as shown in FIG. 19, the correcting member 29 securely fixes the foam tie 21 to the embedded formwork 13.

Reference numeral 30 denotes a work table constructed by using a square steel pipe or the like, 31 an embedded formwork connected unit formed by connecting a plurality of embedded formwork 13 and 32 a wide end thick material. The length of the thick material 32 is such that it does not protrude from both ends of the embedded formwork connected unit 31. Reference numeral 33 is a vertical end thick material, and two pieces are arranged on the horizontal end thick material 32 so as to sandwich the form tie 21 or the external support work connecting jig 23.

Then, as shown in FIG. 20, a vertical end thick material 33
The buried formwork connector unit 31 and the external support are integrated by fastening the tip of the foam tie 21 or the external support connecting jig 23 protruding from the washer 34 with a washer 34. Reference numeral 35 denotes a short short lateral end thick material for a joint which is arranged so as to straddle two embedded formwork unit units, and 36 denotes a long vertical end material for a joint laid on the short short lateral end thick material 35 for a joint.
Reference numeral 37 is a horizontal end thick material for the joint, which is stacked on the vertical end thick material 36 for the joint.
3 and the lateral end thick material 37 for joint are fastened by the clamp 38 to be fixed.

Numeral 40 is a U formed by processing a steel material into a smooth U shape.
It is a character-shaped connecting jig, and is used for unitizing the external supporting work when it is arranged on the embedded formwork connecting unit 31. The distance between the legs of the U-shaped connecting jig 40 is the size of the lateral end thick material 32, and the leg length of the U-shaped connecting jig 40 is the lateral end thick material 32 and the vertical end thick material 33. 25 and 26, the horizontal end thick member 32 and the vertical end thick member 33 are sandwiched and connected by washers 41 to form an external supporting unit. It is configured to be able to.

A rubber band 42 for temporary fixing is attached to an intermediate portion of the U-shaped connecting jig 40. The rubber band 42 allows the U-shaped connecting jig 40 to be easily temporarily fixed to a lateral end thick material. To be done. 43 is angle steel, 44 is channel steel,
The angle steel 43 and the channel steel 44 are provided with holes corresponding to the intervals of the internal support work binding and embedding jigs 19 embedded in the embedded formwork 13. That is, the tip of the internal support work tightly fitting jig 19 is configured to project from this hole.

Reference numeral 45 is an internal supporting frame made of chevron steel 43, and 46 is an internal supporting frame made of channel steel 44, both of which are finally integrated with concrete. Next, the embedded formwork construction method using the embedded formwork connected unit of the present invention will be described in detail. (1) Buried Formwork Method without Using External Supporting as a Unit First, a workbench 30 having a uniform height is formed using a square steel pipe, and the buried formwork connecting jig 1 is placed at a predetermined position on the workbench 30. ，
2 is placed with the erected pin-type projection 4 standing up. Next, while fitting the embedded formwork embedding jig 6 into the split pin type protrusion 4, as shown in FIG.
An embedded formwork unit unit 3 that connects the two to each other and has a predetermined size
Set to 1.

An example of the buried formwork connected unit 31 obtained in the above-mentioned buried formwork connecting step is shown in FIGS.
The embedded formwork connecting body unit shown in FIG. 15 is an example in which the embedded formwork 13 is simply a connecting body unit, and the embedded formwork connecting jig 1 is used in a portion where four embedded formwork 13 contact each other. The buried formwork connecting jig 2 is used for the other parts.

Further, the buried formwork connecting unit 31 shown in FIG. 16 is an example of the case where it is integrated with concrete, and the buried formwork connecting jig 2 is used in the peripheral portion of the buried formwork connecting unit 31. In other parts, the embedded formwork connecting jig 1 is used to increase the connection strength between the embedded formwork 13 parts. It should be noted that, when connecting the embedded formwork, the embedded formwork 13 may be connected more firmly by inserting the binding pin 12 into the opening of the split pin type projection 4 as shown in FIG.

At this point, the embedded formwork connecting unit units 31 to be connected are attached with the separators 28 in advance, and finally the separators 28 are connected to each other by welding or turnbuckle to connect the embedded formwork connecting unit units 31 to each other. When connecting the embedded formwork 13d to the position where the separator 28 is mounted, the embedded formwork 13d is connected to the embedded formwork 13d and the other embedded formwork 13 or before the connection. The foam tie 21 is fixed to the embedded form 13d as shown in FIG.

Alternatively, as shown in FIG. 23, one side (left side)
When the separator 28 is fixed only to the embedded formwork connecting unit 31, the other side (right side) of the embedded formwork connecting unit 31 is connected to the external support work connecting jig 2 as shown in FIG.
3 is attached to the buried formwork 13. Further, at a place where the external supporting and connecting jig 23 is not used, as shown in FIG. 19, a correcting member 29 is attached to the bottom of the pecon 22 so that the foam tie 21 is securely fixed to the embedded formwork 13. To do.

Next, in the step of connecting the external supporting members to the embedded formwork connecting body unit 31, first, as shown in FIG. 20, the lateral end thick material 32 is arranged in the embedded formwork connecting body unit 31, Next, the vertical thick material 33 is arranged. Form Tie 2
When using 1, the vertical edge thick material 33 is the foam tie 2
Two pieces are arranged so as to sandwich 1 between them, and the washer 34 is used to fix the foam tie 21 to the outer support.

Similarly, when the external supporting and connecting jig 23 is used, after the horizontal end thick member 32 and the vertical end thick member 33 are arranged at predetermined positions, the external supporting and connecting jig is used by using washers 34. Two
Fix 3 to the external support. That is, by tightly connecting the foam tie 21 or the external support work connecting jig 23 and the external support work, the external support work and the embedded formwork connecting unit unit 31 are integrated, and the embedded formwork 13 is connected to the connecting unit unit. Since it is configured as described above, it is not necessary to connect all the buried formwork 13 to the external supporting work, and the steel pipe used for the external supporting work can be saved to the minimum.

Next, a shuffle or the like is attached to the vertical end thick material 33, and the embedded formwork unit unit 31 is built by a hoist. The separator 28 is attached to the embedded formwork connected body unit 31 by the embedded formwork connected body unit 31.
It is done when the hoist has been lifted or after it has been built. In the step of connecting the embedded formwork connected body units 31 to each other, when the embedded formwork connected body units 31 are connected so as to be adjacent to each other,
As shown in FIG. 21, the short lateral end thick members for joint 35 are arranged so as to straddle the lateral end thick members 32 of the respective embedded formwork unit units 31, and then the vertical end thick members for joint 36 are arranged. It is arranged on the joint short horizontal end thick material 35, further the joint horizontal end thick material 37 is arranged on the joint vertical end thick material 36, and the thick timbers are connected by the clamp 38, and the embedded formwork is formed. The connected body units 31 are connected to each other.

Further, when connecting the embedded formwork connecting body units 31 so as to face each other, as long as the separators 28 are joined by welding or turnbuckle, as shown in FIG. 22, the embedded formwork connecting body unit 31. After building them facing each other, each embedded formwork unit unit 31
The separator 28 protruding from is joined. Further, when the foam tie 21 is fixed only to the embedded formwork connected body unit 31 on one side, as shown in FIGS. 23 and 24, the embedded formwork connected body unit 3 to which the separator 28 is attached is attached.
After 1 (left side) is built, the foam tie 21 protruding from this buried formwork connected unit 31 is used as the separator hole 17 of the other buried formwork connected unit 31 (right side) or the external support connection connecting jig 23. Then, the foam tie 21 and the external support work are fastened with washers 25 and nuts 27.

After the concrete is poured and hardened, the external supports are removed, the separator holes 17 are filled with concrete, and the whole process is completed. According to the above method, the embedded formwork connecting jigs that can be attached with one-touch are used to connect the embedded formworks to each other to form the embedded formwork connected unit, so that all the embedded formwork and the external support work can be performed. There is no need for tight binding, and the construction time can be shortened and construction can be simplified. Furthermore, there is a feature that the embedded forms can be easily connected to each other and the connected state can be maintained once they are connected.

Further, since it is not necessary to process the square steel pipe used as the external supporting work, the square steel pipe itself can be diverted to other uses, and the waste of materials can be minimized. I can. (2) Embedded Formwork Method Using Unitized External Supports First, using the embedded formwork 13e in the same process as (1),
The embedded formwork unit unit 31 is formed.

Next, in the step of connecting the external supporting work to the embedded formwork connecting unit 31, when the square steel pipe is used as the external supporting work unit by using the U-shaped connecting jig 40, as shown in FIG.
As shown in FIG. 5 and FIG. 26, the U-shaped connecting jig 40 is temporarily fixed to the lateral end thick member 32 using the rubber band 42 in accordance with the groove 18 of the embedded formwork 13e, and the lateral end thick member 32 is brought to a predetermined position. To move. Similarly, all the lateral end thick members 32 to which the U-shaped connecting jig 40 is temporarily fixed are arranged at predetermined positions, and the foam tie 21 or the external supporting and connecting jig 23 is placed on the embedded form 13e in the same manner as (1). Fix it.

Next, regarding the attachment of the vertical end thick material 33, when the form tie 21 or the external support work connecting jig 23 is used for connection with the external support work, this form tie 21 or the external support work connecting jig is used. Vertical end thick material 33 so as to sandwich 23
Are arranged in pairs. After arranging all the vertical end thick materials 33, the U-shaped connecting jig 40 is fastened with washers 41 to form the external support as a unit.

Further, the horizontal end thick material 32 and the vertical end thick material 33 may be arranged without using the U-shaped connecting jig 40, and the intersections of the respective thick end materials may be unitized by welding or bolting. Alternatively, an external supporting work unitized in advance may be hoisted by a hoist and installed on the embedded formwork connector unit 31. Next, similarly to (1), the buried formwork connecting unit 31 is connected and built in a predetermined shape, and after the cast-in-place concrete is cast, the external supporting and supporting unit is lifted by a hoist and removed. However, a support is attached to the external support unit to ensure a safe condition.

Finally, the separator holes 17 are filled with concrete to complete the whole process. According to the above method, it is possible to unitize the square steel pipe used for external support without processing, and arrange the horizontal end thick material according to the groove of the embedded formwork so that the support interval can be freely set. become,
Furthermore, the external support work can be diverted. Further, since the embedded formwork connecting jig is used, it is not necessary to fix all the embedded formwork to the external support work. (3) Buried formwork construction method in which the internal supporting frame is attached and tightly attached to the workbench 30 in the same manner as in the above (1).
As shown in FIG. 28, the buried molds 13f are arranged with the back surface (the surface from which the internal support work tightly fitting embedding jig 19 is projected) facing upward, and the buried formwork connecting jig 1 (2) is used. Embedded formwork 13
These are connected to each other and this operation is repeated to form the embedded formwork connecting unit 31 having a predetermined size.

Next, all the chevron steels 43 are placed in the buried formwork unit unit 31 by passing the tips of the inner support work tightly-bonding and embedding jigs 19 through the holes provided in the chevron steels 43, and welding. Alternatively, the angle steels 43 are assembled by bolting to form the internal support frame 45. Next, as shown in FIG. 29, all the inner supporting work tightly-bonding embedding jigs 19 and the angle steel 43 are tightly connected by welding or bolting, and the embedded formwork connecting unit unit 31 and the inner supporting work frame 45 are integrated. To do.

The inner supporting frame 45 assembled in a separate process is used to bury the embedded formwork unit 3 by using a hoist.
You may arrange | position on 1 above. Finally, the shuffle is attached to the inner support frame 45, and the embedded formwork unit unit 3
Build with care so that 1 is not damaged. The above method is a method of attaching the internal support frame to the embedded formwork connecting unit in which the embedded formwork connecting jigs are connected to each other, which is effective when making a planar formwork. , The inner support frame can be easily assembled and attached by using the intervals of the inner support work binding and embedding jigs as a guide. (4) Embedded formwork method in which an embedded formwork is attached to the internal supporting frame and tightly connected. First, a workbench 30 having a workable height and a uniform height is formed, and the workbench 30 is mounted on the workbench 30. The inner support frame 46 is assembled using the channel steel 44.

Alternatively, the inner supporting frame 46 assembled at the factory may be arranged on the work table 30 by using a hoist. When the buried formwork 13 is connected to a curved surface, the size of the formwork is preliminarily allocated so that the workable height and the workbench and the work scaffolding are minimized. Deploy.

Next, the first embedded formwork 13f is accurately placed with its front side facing up at the mark-out position of the inner supportwork frame 46, and the inner supportwork tightly-bonded to project from the back surface of this embedded formwork 13f. The insertion jig 19 and the inner support frame 46 are tightly connected by welding or bolting. Further, another embedded formwork 13f is arranged on the internal support frame 46 so as to be adjacent to the first embedded formwork 13f, and the embedded formwork connecting jig 1 (2) is placed.
The connection is made from the back side as shown in FIG. By repeating this operation, the embedded formwork unit unit 31 having a predetermined size is formed. When assembling the embedded formwork 13 into a sloped or curved unit, the embedded formwork 13 and the internal support frame 46 are tightened as in the case of the planar unit from the lowermost stage.

Next, the embedded formwork 13 which is only connected by the embedded formwork connecting jig 1 (2) is protruded from the embedded formwork 13.
Tighten by welding or bolting 6. Figure 3
FIG. 1 is a side view showing a state in which the embedded formwork connecting unit 31 and the internal support frame 46 are connected.

In the above method, when the planar unit is constructed, by using the embedded formwork connecting jig, not only the displacement of the embedded formwork after the connection can be prevented but also the marking is not newly performed. In both cases, the mounting position of the next buried formwork is determined, and the work of tightening the inner support frame becomes easier.
Also, when connecting the embedded formwork 13f to a large curved surface or a large sloped shape, as shown in FIG. 32, marking is performed every several sheets, and the embedded formwork 13f is placed at the marking position, and the internal support work is tightly bonded. The insertion jig 19 and the inner support frame 46 are tightly connected by welding or bolting. That is, by this work, the embedded formwork 13f to be attached to the inner support frame 46 next can be accurately arranged.

Next, the embedded formwork 13f is repeatedly connected from the bottom of the portion where the embedded formwork 13f is not attached by using the embedded formwork connecting jig 1 (2) to remove all the embedded formwork 13f. After arranging at a predetermined position, the inner support work tightly-bonding embedding jig 19 and the inner support work frame 46 are tightly connected to fix the embedded formwork 13f to the inner support work frame 46. FIG. 33
[Fig. 6] is a side view of the embedded formwork unit unit 31 in a state where the connection of the embedded formwork 13f is completed.

Even when the embedded molds 13f are connected to each other in a plane, the embedded molds 13f may be arranged and tightly bonded after marking out every few sheets. Finally, a shuffle is attached to the inner supporting frame 46, and the embedded formwork unit unit 31 is built using a hoist, being careful not to damage it. According to the above method, a large formwork can be easily obtained regardless of whether it is a flat surface or a curved surface, and if the embedded formwork is first tightly bonded to the inner support frame, the mounting position of the embedded formwork thereafter will be It can be easily determined by connecting the embedded molds using a frame connecting jig, and has the advantage that the work of marking out can be saved and the work can be simplified.

[0049]

[Effect] There is no need to transport a large embedded formwork during construction, and a small embedded formwork can be brought to the site and assembled at the site to obtain an embedded formwork of the desired size, so the transport cost is low. Can be In particular, since there is no need for a hoist or the like for transportation, it can be performed even in a place where there are no special technicians.

Since the connection is made by the connecting body, accurate placement can be performed without marking out. Furthermore, even if a large-sized embedded form is formed by connecting and integrating, this embedded mold is used. The frame is constructed so that it has sufficient strength, and there will be no hindrance during construction.

[Brief description of drawings]

FIG. 1 is a plan view of a connecting jig (first embodiment).

FIG. 2 is a side view of a connecting jig (first embodiment).

FIG. 3 is a plan view of a connecting jig (second embodiment).

FIG. 4 is a sectional view of an embedding jig.

FIG. 5 is a plan view showing a state in which a fixing jig is provided on a connecting jig (first embodiment).

FIG. 6 is a side view showing a state in which a fixing jig is provided on a connecting jig (first embodiment).

FIG. 7 is a perspective view of an embedded formwork (first embodiment).

FIG. 8 is a perspective view of an embedded formwork (second embodiment).

FIG. 9 is a perspective view of an embedded formwork (third embodiment).

FIG. 10 is a perspective view of an embedded formwork (fourth embodiment).

FIG. 11 is a perspective view of an embedded formwork (fifth embodiment).

FIG. 12 is a perspective view of an embedded formwork (sixth embodiment).

FIG. 13 is a cross-sectional view showing a state where the embedded formwork is connected by a connection jig.

FIG. 14 is a perspective view showing a state in which a plurality of embedded forms are connected.

FIG. 15 is a plan view showing a state in which a plurality of embedded forms are connected.

FIG. 16 is a plan view showing a state in which a plurality of embedded molds are connected.

FIG. 17 is an explanatory diagram of a form tie.

FIG. 18 is an explanatory diagram of an external support work connection jig.

FIG. 19 is an explanatory diagram showing a state in which a foam tie is attached to the embedded formwork.

FIG. 20 is a perspective view showing the arrangement of external supports.

FIG. 21 is a perspective view of a connected state of an embedded formwork connected body unit.

FIG. 22 is an explanatory diagram of a connection state of separators.

FIG. 23 is an explanatory diagram of a connection state of separators.

FIG. 24 is an explanatory diagram of a connection state of separators.

FIG. 25 is an explanatory diagram of a connection state of the U-shaped connection jig and the external support work.

FIG. 26 is an explanatory diagram of a connection state of a U-shaped connection jig and an external support work.

FIG. 27 is an explanatory diagram of a connection state of the U-shaped connection jig and the external support work.

FIG. 28 is an explanatory diagram of a connection state of embedded formwork.

FIG. 29 is an explanatory diagram of a connection state of an embedded formwork connected unit and an internal support frame.

FIG. 30 is an explanatory diagram of a connection state of the embedded formwork connected unit and the internal support frame.

FIG. 31 is an explanatory diagram of a connection state of an embedded formwork connected unit and an internal support frame.

FIG. 32 is an explanatory diagram of a connection state of an embedded formwork connected unit and an internal support frame.

FIG. 33 is an explanatory view of a connection state of the embedded formwork connected unit and the internal support frame.

[Explanation of symbols]

 1, 2 embedded formwork connecting jig 4 split pin type projection 5 hooking part 6 embedded formwork embedding jig 9 hooked parts 13a to 13f embedded formwork 21 form tie 22 pecon 23 external support work connecting jig 28 Separator 31 Embedded formwork unit unit 32 Horizontal edge material 33 Vertical edge material 40 U-shaped connection jig 43 Angle steel 44 Channel steel 45,46 Internal support frame

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuyuki Murakami 2-1-1 Tsukimi-cho, Kumagaya-shi, Saitama Chichibu Cement Co., Ltd. Central Research Laboratory (72) Inventor Takefu Watanabe 2-chome, Tsukimi-cho, Kumagaya-shi, Saitama 1st-1 Chichibu Cement Co. Central Research Laboratory

Claims (3)

[Claims] 1. An embedded formwork connected body unit in which a plurality of embedded formworks are connected to each other to form an integrated body, the embedded formwork comprising:
An embedding member having a hooked portion embedded at a plurality of positions of the buried form, and a connecting body having a plurality of hooking portions hooked on the hooked portions of the embedding member. Is equipped with
A plurality of embedded forms are connected and integrated by hooking the engagement part of the connecting body to the engagement part of the embedding member embedded in the embedded formwork. Body unit. 2. The embedded formwork connecting unit according to claim 1, wherein the hooking portions are provided at four corners of the connecting body. 3. The embedded formwork unit unit according to claim 1, wherein two hook portions are provided at both left and right ends of the connection body.