JPH0728312Y2 - Sheath tube set jig - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a jig used for embedding and setting a sheath pipe for fixing an anchor bolt of a house to a concrete foundation when pouring concrete slurry.

BACKGROUND ART At present, industrialized houses constructed by combining a plurality of box-shaped housing units pre-produced at a factory at a construction site have become widespread. In this industrialized house,
The first-floor housing unit is fixed to the concrete foundation via anchor bolts, and the construction method is that the anchor bolts that were previously tightened at the bottom of the first-floor housing unit were filled with grout material buried in the concrete foundation. It is performed by inserting into a sheath tube and solidifying the grout material. A sheath tube setting jig is used to bury this sheath tube when pouring concrete slurry into the foundation, and this sheath tube setting jig is provided with a plurality of sheaths on the top member arranged on the upper surface of the house foundation molding formwork. The tube can be detachably attached.

By the way, in some industrialized houses, for example, in order to make the ceiling height of the living room higher than that of the entrance, the lower surface height of the living room housing unit is made lower than the lower surface height of the entrance housing unit. In such industrialized houses, it is necessary to provide the concrete foundation with steps above and below.

In order to embed the sheath tube above and below the step in such a foundation, a structure different from that of the above-mentioned sheath tube setting jig, that is, a plurality of sheath tubes are attached to the top member at different height positions For this purpose, for example, a sheath tube setting jig having a structure in which a plurality of extending portions having different downward extending lengths are provided on the ceiling member is required, and this sheath tube setting jig is placed in a mold. A dam member is required to prevent the generated concrete slurry from flowing from the upper part to the lower part of the step.

[Problems to be solved by the device]

However, it is necessary to prepare two types of sheath tube setting jigs, one for normal foundations without upper and lower steps and one for special foundations with upper and lower steps. This is not desirable because it causes an increase in the number of housings, and in particular, the number of houses in which the upper and lower steps are provided on the foundation is small, so it is necessary to manufacture a special sheath tube set jig for the latter, which is a manufacturing and cost point. Will be at a disadvantage.

In addition, as a conventional technique related to the present invention,
-28124, JP-A-58-20830 and JP-B-61-30094.

The purpose of the present invention is to provide a sheath tube setting jig that can be applied to both a normal foundation without upper and lower steps and a special foundation with upper and lower steps, and has commonality. is there.

[Means for Solving the Problems]

A sheath tube setting jig according to the present invention is configured to include a jig body arranged on an upper surface of a housing foundation molding form, an extension member having a length extending downward, and a vertical dam member,
The jig main body is provided with two sheath tube mounting portions facing the inside of the mold and having the same height, and the extension member is detachably attached to either one of the two sheath tube mounting portions downward. , The sheath tube is attached to the lower surface, and the dam member is disposed between the two sheath tube attachment portions.

[Action]

When burying the sheath tube in the foundation with the upper and lower steps, place the extension member downward on either side of the jig tube, that is, the sheath tube mounting section corresponding to the lower side of the upper and lower steps. The jig body is mounted on the upper surface of the mold while mounting the sheath tube on the other sheath tube mounting portion and the extension member while vertically mounting the dam member between the two sheath tube mounting portions. As a result, a plurality of sheath tubes are set in the form at different height positions, and when concrete slurry is placed in the form, the slurry has different top surface heights with the weir member as a boundary due to the partitioning action of the weir member. When the slurry solidifies, a concrete foundation with a sheath tube embedded in the upper and lower parts of the step is completed.

When burying a sheath tube in a foundation without upper and lower steps, do not use the extension member and the weir member, attach the sheath tube to each sheath tube attachment part of the jig body, and form the jig body Placed on the upper surface of. If concrete slurry is poured into the form and the slurry is solidified, a concrete foundation with no upper and lower steps and with a sheath tube embedded is completed.

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings.

The housing 1 shown in FIG. 1 is an industrialized housing constructed by combining a plurality of box-shaped housing units 2 pre-produced in a factory at the construction site in left, right, front, back, and top, and the bottom surface of the housing unit 2 on the first floor. From the above, an anchor bolt 6 fixed by a grout material 5 is projected downward to a sheath pipe 4 embedded in a concrete foundation 3.

Of the housing units 2 on the first floor, housing units 2B and 2C are
In order to make the ceiling height higher than that of the housing unit 2A, it has a long vertical dimension, so that the foundation 3 is provided with vertical steps 7.

FIG. 2 shows the overall shape of the foundation 3, and steps 7 are provided on the straight line portion A and the T-shaped portion B of the foundation 3, and the sheath tube 4 is embedded above and below the steps 7. ing.

FIGS. 3, 4, and 5 show the sheath tube setting jig 10 applied to the T-shaped portion B when the foundation 3 is made,
8 and 9 show a sheath tube setting jig 30 applied to the straight line portion A.

First, the sheath tube setting jig 10 will be described. The sheath tube setting jig 10 includes a jig main body 11, an extension member 12 having a length extending downward, and a vertical dam member 13.

The jig body 11 has a rectangular opening 15 formed in the ceiling member 14.
It is provided with two sheath tube mounting portions 16 and 17 which are vertically downwardly recessed, and these sheath tube mounting portions 16 and 17 are at the same height position, and a gap 18 is provided between them. It is provided. In this embodiment, the sheath tube mounting portions 16 and 17
Is formed by welding a bent sheet metal to the ceiling member 14, and small pieces 19 for reinforcement are fixed to the lower surfaces of the respective sheath tube mounting portions 16 and 17, and the sheath tube mounting portions 16 and 17 are also provided. And a hole 20 is provided in the small piece 19.

Side wall portions 16A, 16B, 17A, 1 of the sheath tube mounting portions 16, 17 facing each other
A hole 21 is formed in 7B, and a nut 22A for screwing a level adjusting bolt 22 is fixed to the top member 14.

The extension member 12 has a U-shape that opens upward and has a bottom 12
A small piece 23 for reinforcement is fixed to the lower surface of A,
A hole 24 is provided in the bottom portion 12A and the small piece 23. Further, a hole 25 is provided in the upper portion of the rising portions 12B and 12C of the extension member 12. The extension member 12 can be detachably attached to either one of the two sheath tube attachment portions 16 and 17 by passing a bolt 26 through the hole 25 and the hole 21 and tightening a nut 26A.

The dam member 13 has a thickness that allows it to be inserted into the gap 18 between the sheath tube mounting portions 16 and 17, and has bent portions 13A and 13B at both ends thereof, and these bent portions 13A and 13B are the fourth Scissors bracket 2 as shown
The dam member 13 is fixed to the formwork 8 at
It is detachably attached to.

The scissors metal fitting 27 is a U-shaped metal fitting body 27A as shown in FIG.
And a tightening bolt 27B that is screwed into the metal fitting body 27A so that it can move back and forth.
Consists of.

The sheath tube setting jig 30 shown in FIGS. 8 and 9 has basically the same structure as the sheath tube setting jig 10. That is, the sheath tube setting jig 30 is configured to include the jig body 31, the extension member 32, and the dam member 33. On the top member 34 of the jig body 31, the sheath tube mounting portions 36, 3 at the same height position
7 is provided, small pieces 39 are fixed to the lower surfaces of the sheath tube attaching portions 36, 37, and holes 40 are provided in the sheath tube attaching portions 36, 37 and the small piece 39. Further, a nut 42A for screwing the level adjusting bolt 42 is fixed to the ceiling member 34.

The extension member 32 is a U-shape having a length extending downward, and a small piece 43 is fixed to the lower surface of the bottom portion 32A of the extension member 32.
A hole 44 is provided in 43. Extension member 32 is bolt 46, nut 4
It is removably attached to one of the side wall portions of the sheath tube attaching portions 36 and 37 by 6A.

The dam member 33 has a thickness that allows it to be inserted into the gap 38 between the sheath tube attachment portions 36 and 37, and is attached to the form 8 by the scissors metal fittings 27 at the bent portions 33A and 33B at both ends thereof.

Next, a method of making the foundation 3 in which the sheath tube 4 is embedded above and below the step 7 will be described.

After assembling the mold 8 by combining a large number of panels, the dam members 13 and 33 are attached to the respective predetermined positions of the mold 8 with the scissors metal fittings 27 as shown in FIGS. This attachment is a weir member
This is performed so that the bent portions 13A, 13B, 33A, 33B of 13, 33 face the upper side of the step 7. The upper end opening of the sheath tube 4 is applied to the lower surfaces of the sheath tube mounting portions 17 and 37 of the sheath tube setting jigs 10 and 30 and the lower surfaces of the extension members 12 and 32 before being attached to the jig bodies 11 and 31. Attach the sheath tube 4 to. To install the sheath tube, the long shaft bolts 50 inserted into the holes 20, 40, 24, 44 from above are screwed into the nuts 51 fixed to the lower surface of the sheath tube 4, and the long shaft bolts 50 are screwed at the upper end. Operation unit 51A
It is performed by tightening with the rotating operation by.

Next, the extension members 12 and 32 are attached to the sheath tube mounting portions 16 and 36 of the jig bodies 11 and 31 with the bolts 26 and 46 and the nuts 26A and 46A, whereby the extension members 12 and 32 are attached to the jig bodies 11 and 31. It will be mounted in a state of being directed downward. The sheath tube mounting portions 16 and 36 to which the extension members 12 and 32 are mounted correspond to the lower side of the step 7, and the other sheath tube mounting portions 17 and 37 correspond to the upper side of the step 7.

After that, the respective sheath tube setting jigs 10 and 30 are arranged at respective predetermined positions of the mold 8, and the ceiling members 14 and 34 of the jig bodies 11 and 31 are placed on the upper surface of the mold 8. At this time, the sheath tube mounting parts 16, 17, 3
Weir members 13 and 33 are inserted into gaps 18 and 38 between 6 and 37. As a result, the sheath tube mounting portions 16, 17, 36, 37 and the extension members 12, 32 are exposed to the inside of the form 8, and the respective sheath pipes 4 are arranged in a suspended state in the form 8 so that each sheath pipe set treatment is performed. In the tools 10 and 30, the suspending height position of the sheath tube 4 is different by the downward protruding length of the extension members 12 and 32.

Rotate the level adjusting bolts 22, 42 to rotate the top member 14,
The height of the sheath tube setting jigs 10 and 30 is adjusted by adjusting the amount of bolt projection from 34, and the height position of the sheath tube 4 in the mold 8 is thereby set to a predetermined position.

After that, concrete slurry is poured into the mold 8 and, after the upper surface of the slurry reaches the lower surfaces of the extension members 12 and 32, the slurry pouring work is performed at a predetermined position S ₁ shown in FIGS. 4 and 8, That is, the step is performed only on the upper side of the step 7 of the foundation 3.

The concrete slurry cast at point S ₁ is dam member 13,3
The flow to the point S ₂ on the opposite side is blocked by 3 and the weir member 1
Since both ends of 3, 33 are in contact with the mold 8 at the bent portions 13A, 13B, 33A, 33B, the slurry flows in the length direction of the dam members 13, 33 and the slurry flows to the location S _2. There is no such thing.
Although the locations S ₁ and S ₂ are in communication with each other on the lower surface side of the weir members ₁₃ , 33, since the slurry has a large viscosity, it passes from the lower surface side of the weir members _13, 33 to pass from the location S ₁ It does not flow to S ₂ .

The slurry pouring work to the point S ₁ is performed until the upper surface of the slurry reaches the lower surfaces of the sheath tube mounting portions 17, 37.

The slurry cast in the mold 8 as described above is the dam member 1
It is partitioned by 3,33, and the top surface height of the slurry is different between the points S ₁ and S ₂ .

After the slurry has solidified to some extent, the bolts 26 and 46 are loosened to separate the jig bodies 11 and 31 from the extension members 12 and 32, and the long axis bolts 50 on the sheath tube mounting portions 17 and 37 side are loosened. The jig main bodies 11 and 31 are removed from the form frame 8 by using, and the long shaft bolts 50 on the extension member 12 and 32 side are loosened to extract the extension members 12 and 32 from the form frame 8 and the dam members 13 and 33 are sandwiched. Metal fitting 2
It is pulled out from inside the form 8 by loosening 7. As a result, only the sheath tube 4 is left inside the mold 8.

When the slurry is completely solidified, the foundation 3 shown in FIG. 2 is completed, and the sheath tube 4 is embedded above and below the step 7 formed by the dam members 13 and 33.

In the above description, the extension members 12 and 32 are provided with two sheath tube mounting portions 16 and 1 provided in the respective sheath tube setting jigs 10 and 30.
Although attached to the sheath tube attachment portion 16,36 of 7,36,37, the sheath tube attachment portion for attaching the extension members 12,32 is determined according to the positions of the upper and lower portions of the step 7 provided on the foundation 3. To be

FIG. 7 and FIG. 10 are diagrams showing a sheath tube burying operation by the sheath tube setting jigs 10 and 30 when a step is not provided on the foundation. This work includes extension members 12 and 32 and weir members 13 and 3.
3 is done without being used. The respective sheath tubes 4 are attached to the sheath tube mounting portions 16, 17, 36, 37 of the jig bodies 11, 31 with long-axis bolts 50. In this state, the sheath tubes 4 are set in a suspended state in the form frame 8. To be done. If concrete slurry is cast into the mold 8 until it reaches the lower surface of the sheath pipe mounting portions 16, 17, 36, 37, the sheath pipe 4 can be formed on a stepless foundation.
Can be buried.

Therefore, according to this embodiment, since the extension members 12 and 32 can be attached to and detached from the jig bodies 11 and 31, the same sheath tube setting jigs 10 and 30 can be used to form a foundation with steps. The sheath tube burying operation can be performed on the foundation having no steps, and the sheath tube setting jigs 10 and 30 have commonality.

FIG. 11 shows a sheath tube setting jig 60 according to another embodiment.
This sheath tube setting jig 60 is also configured to include a jig body 61, an extension member 62 and a dam member 63. The extension member 62 is formed in a rectangular box shape, and is attached to the sheath tube of the jig body 61. Part 6
The extension member 62 is inserted into the hole 71 provided in the bottom portion of the 6, 67 and the hole 75 provided in the upper surface portion of the extension member 62, and the nut 76A is screwed into the extension member 62 so that the extension member 62 is attached to the sheath tube attachment portion 66. It is attached to either one of the 67.

As shown in this embodiment, the shape of the extension member and the method of attaching the extension member to the sheath tube attachment portion are not limited to those in the above-described embodiments. However, according to the embodiment shown in FIG. 11, when the foundation is not provided with a step, the concrete slurry reaches the lower surface of the sheath pipe mounting portions 66, 67 and enters the hole 71, and solidifies as it is to form the hole 71. In consideration of such problems, it is preferable to adopt the shape of the extension members 12 and 32 in the sheath tube setting jigs 10 and 30 of the above-described embodiment and the mounting method thereof, because they may be clogged.

In each of the above examples, the length extending below the extension members 12, 32, 62 is determined according to the height of the step provided on the base,
In order to secure the same height as the height of the step, a plurality of extension members may be vertically connected to each other.

Further, in the above respective embodiments, the dam members 13, 33, 63 are detachably attached to the form 8, but these dam members 13, 33, 63 are attached to the jig bodies 11, 31, 61. It may be detachably attached.

Further, the sheath tube setting jig according to the present invention can be applied not only to the foundation for industrialized houses but also to the foundation for ordinary houses.

[Effect of device]

According to the present invention, the sheath tube setting jig can be applied to both a foundation without upper and lower steps and a foundation with upper and lower steps, and thus has commonality.

[Brief description of drawings]

FIG. 1 is a partial sectional view showing a house built on a foundation, FIG. 2 is a perspective view showing the foundation, and FIG. 3 is a T shown in FIG. 2B.
Fig. 4 is an exploded perspective view of the sheath tube setting jig applied to the character portion, Fig. 4 is a plan view of the sheath tube setting jig of Fig. 3, and Fig. 5 is a view taken along the line V-V of Fig. 4, FIG. 6 is a perspective view showing scissors for attaching the weir member to the mold, and FIG. 7 is the same as FIG. 5 showing a case where the sheath tube setting jig of FIG. 4 is applied to a foundation without steps. FIG. 8, FIG. 8 is a plan view showing a sheath tube setting jig applied to the straight portion shown by A in FIG. 2, FIG. 9 is a view taken along the line IX-IX in FIG. 8, and FIG. FIG. 8 is a view similar to FIG. 9 showing the case where the sheath tube setting jig of FIG. 8 is applied to a foundation without steps above and below, and FIG. 11 is an exploded view showing a sheath tube setting jig of another embodiment with different extension members. It is a perspective view. 3 ... Foundation, 4 ... Sheath tube, 7 ... Step, 8 ... Formwork, 10, 3
0,60… Sheath tube set jig, 11,31,61… Jig body, 12,3
2,62… Extension member, 13,33,63… Weir member, 16,17,36,37,66,6
7 ... Sheath tube mounting part, 27 ... Scissors fitting.

Claims (1)

[Scope of utility model registration request] 1. A jig main body which is arranged on the upper surface of a housing basic molding form and has two sheath tube mounting portions of the same height facing the inside of the form, and a length extending downward. And an extension member detachably attached downward to one of the two sheath tube attachment portions and having a sheath tube attached to the lower surface, and the extension member is disposed between the two sheath tube attachment portions. And a vertical weir member.