JPH04110Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention uses steel pipe piles as reinforcement to improve the bending rigidity of the pile head against supporting loads and to prevent deformation of the pile head due to contact with other objects. Regarding a jig for receiving concrete to be filled in the head of a steel pipe pile in a hole of a steel pipe pile, specifically, a disc-shaped body for receiving concrete to be filled in a head of a steel pipe pile in a hole of the steel pipe pile, and The present invention relates to a jig for receiving concrete filled in the head of a steel pipe pile, which includes a support portion that holds the disc-shaped body at a predetermined position in the hole of the steel pipe pile.

[Conventional technology]

Conventionally, the above-mentioned jig has a structure in which a disc-shaped body formed with a diameter slightly smaller than the inner diameter of the target steel pipe pile is simply held in the hole of the steel pipe pile by the supporting part (for example, -Refer to Publication No. 1524).

[Problem that the invention attempts to solve]

However, with the conventional method, when filling with concrete, there is a problem that water leaks from the gap between the periphery of the disc-shaped body and the inner circumferential surface of the steel pipe pile, resulting in a decrease in the water content of the concrete due to water leakage. Therefore, there was a risk that the concrete solidification strength would decrease.

An object of the present invention is to prevent water leakage as described above through simple additional improvements.

[Means for solving problems]

The characteristic configuration of the jig for receiving the head filled concrete of a steel pipe pile according to the present invention is that the steel pipe pile The reason is that an elastic sealing member is attached to perform a contact sealing action on the inner circumferential surface of the holder, and its functions and effects are as follows.

[Effect]

That is, with the above-described configuration, the space between the peripheral edge of the disk-shaped body held in the hole of the steel pipe pile and the inner circumferential surface of the steel pipe pile is made watertight by the elastic seal member.

[Effect of idea]

As a result, it became possible to prevent water leakage when filling the head of the steel pipe pile with concrete, and as a result,
It has become possible to avoid a decrease in concrete solidification strength due to a decrease in water content due to water leakage, and it has become possible to provide reliable reinforcement.

〔Example〕

Next, an example will be explained.

Figure 1 shows the main body of the jig, and Figure 2 shows the jig in use when it is attached to a steel pipe pile.Concrete C, which is filled into the head of the steel pipe pile 1 for reinforcement, is received in the hole of the steel pipe pile 1. A plurality of arms 3 are connected to the disc-shaped iron plate 2 for stopping the steel pipe pile 1 by locking the disc-shaped iron plate 2 to the upper end of the steel pipe pile 1 to suspend and hold it in the hole of the steel pipe pile 1. , a jig A for receiving head filling concrete is constructed.

The arm portion 3 is made of reinforcing bars having one end formed with a bent locking portion 3a for the upper end of the steel pipe pile 1, and the other end of the reinforcing bars is connected to the disc-shaped iron plate 2 by welding.

In addition, the intermediate portions of these reinforcing bars (arm portions 3) are bent to convex outward, and when the jig A is inserted into the steel pipe pile 1, these bent convex portions 3b are bent outward. By elastically pressing the jig A into contact with the inner circumferential surface, the bondability of the jig A to the steel pipe pile 1 is enhanced.

A rubber seal member 4 is attached to the periphery of the disc-shaped iron plate 2 by fitting (or by fitting and adhesion) as shown in FIG. This is to prevent water leakage during concrete filling.

Furthermore, by using the sealing member 4 as an elastic sealing member made of rubber, the disc-shaped iron plate 2 can be easily inserted even if the inner peripheral surface of the steel pipe pile 1 has some unevenness such as a bead part. , so that a reliable seal can be applied.

[Another example]

Next, another embodiment will be described.

The material of the elastic sealing member attached to the circumference of the disc-shaped body is not limited to rubber, and various materials can be used.

The elastic sealing member may be made of elastic material, or may be elastic in structure and shape.

Various improvements can be made to the specific mounting structure of the elastic seal member to the disc-shaped body.

The support part for holding the disc-shaped body in the hole of the steel pipe pile may have any form of support,
Instead of the hanging form as in the above embodiment, for example,
It may be of a type in which an annular member on which the disk-shaped body is placed serves as a support and is attached to the hole of a steel pipe pile, or it may be of a type in which something such as a column is attached to the disk-shaped body as a support.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

1 to 3 show embodiments of the present invention,
FIG. 1 is an overall perspective view, FIG. 2 is a sectional view showing the state of use, and FIG. 3 is an enlarged sectional view. DESCRIPTION OF SYMBOLS 1... Steel pipe pile, 2... Disc-shaped body, 3... Support part, 4... Elastic sealing member.

Claims (1)

[Scope of utility model registration request] A disc-shaped body 2 that receives concrete C to be filled into the head of the steel pipe pile 1 in the hole of the steel pipe pile 1, and
A jig for receiving concrete filled in the head of a steel pipe pile, which is provided with a support part 3 for holding the disc-shaped body 2 at a predetermined position in a hole of the steel pipe pile 1, A jig for receiving concrete filled in the head of a steel pipe pile, in which an elastic sealing member 4 is attached to the inner circumferential surface of the steel pipe pile 1 to perform a contact sealing action.