JPS638167A - Wire material winder for concrete structure - Google Patents

Abstract

PURPOSE:To wind a reinforcing wire material round the outside face of a structure easily and continuously by so arranging guide rail bodies surrounding the existing concrete structure as to be free in elevation and controlling the running of a wire material veering device on the guide rails. CONSTITUTION:Guide rails 1, 1 devided at a connecting face 1a are arranged round the existing concrete structure A. A running body 4 which runs on the rails 1 is provided on the guide rails. A veering device 5 provided on the running body 4 runs the rails while veering out a reinforcing line material 7. Shifting devices 2, 2 having a motor built-in, extension arms 3, 3 and rubber wheels 2a, 2a are provided between the guide rails and the structure A so as to elevate the guide rails along the wall face of a structure A. Hereby the reinforcing line material 7 is wound continuously and steadily at an optional pitch.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a wire winding device for shear reinforcement of concrete structures. This relates to a device for winding wire rods such as reinforcing fibers around beams and the like for shear reinforcement.

[Conventional technology]

Conventionally, in order to add earthquake resistance to existing concrete structures of this type, steel plates, welded wire mesh, composite materials of strips and mortar, and composites of strips and epoxy resin have been used on the outer surface of the structures. A method of wrapping reinforcing members such as composite materials to increase shear strength has been proposed and implemented.

Therefore, when applying shear reinforcement by wrapping reinforcing members such as steel plates on the outer surface of an existing concrete structure, it is necessary to weld the steel plates on-site and with excellent welding technology. Reliable work by skilled personnel is essential, and the space between the structure and the reinforcing members wrapped around them is then tightly filled with cement sinter, etc., and bonded together, allowing the structure to be removed from the outside. The stress applied to the body is effectively transmitted to the reinforcing members on the outer surface.

However, with such shear reinforcement methods for existing concrete structures, the construction itself is complicated, such as densely filling cement mortar and joining together, and the structure When a crack occurs in a portion, stress is concentrated on the reinforcing member near the crack, which has the disadvantage that the strength of this reinforcing member cannot be fully utilized.

Therefore, the present inventors focused on this point and first wound a reinforcing wire material such as fiber-reinforced plastic around the outer surface of the structure, and then added it to the structure from the outside. The stress caused by the reinforcing wire is dispersed and transmitted to the wound reinforcing wire as quickly as possible, avoiding stress concentration on the reinforcing wire, and making full use of the strength of the reinforcing wire to prevent cracks. We proposed a method to prevent growth and, by extension, the destruction of structures.

[Problem that the invention seeks to solve]

However, as proposed by the present inventors, winding of reinforcing wire around the outer surface of the concrete 1 structure is subject to various restrictions due to site conditions since the structure already exists. Therefore, there was a problem in that it was extremely difficult to wind the reinforcing wire material around the outer surface of the structure in an orderly manner as expected during on-site work.

Therefore, an object of the present invention is to solve these problems and to easily wind reinforcing wire around the outer surface of an existing concrete structure. An object of the present invention is to provide a wire winding device for a concrete structure.

[Means for solving problems]

In order to achieve the above object, a wire rod winding device for a concrete structure according to the present invention includes a guide rail that can be divided and combined so as to surround a target structure, and a telescopic arm attached to the guide rail. A moving device is provided which is connected to the guide rail 1 through the structure and can control the vertical movement of the guide rail along the structure, and a traveling body which can control the traveling of the guide rail 1-. The reinforcing wire rod is provided with a feeding device capable of feeding it out with a predetermined tension, and the reinforcing wire rod to be fed out can be guided from the guide roll to the outer surface of the structure.

[For production]

That is, in this invention, by controlling the running of the traveling body on the guide rail surrounding the existing concrete structure and controlling the movement of the guide rail itself by the moving device,
For the external part of the existing concrete structure. Continuous winding of the reinforcing wire can be carried out using beams and grooves at predetermined intervals, and at the same time, a predetermined winding tension can be obtained by controlling the unwinding tension of the unwinding device.

〔Example〕

EMBODIMENT OF THE INVENTION Hereinafter, one embodiment of a wire rod winding device for a concrete structure according to the present invention will be described in detail with reference to FIGS. 1 to 3.

1 and 2 are a plan view and a vertical sectional view showing the general structure of this embodiment, and FIG. 3 is an enlarged plan view showing the same traveling body.

In these Figures 1 to 3, the symbol A is an existing concrete structure to be wound, in this case a column member having a rectangular cross section, and the symbol B is a wire rod according to this embodiment. It is a winding device.

Therefore, the wire rod winding device B can
, la, and a pair of ring-shaped guide rails 1.1 that are divisible by 1. moving devices 2, 2 and each guide rail 1.1
A running body that runs through the top 4. and a feeding device 5 mounted on the traveling body 41.

and a ring-shaped guide rail 1.1 consisting of the one set.
, the existing concrete structure A was once divided and recombined so as to surround the existing concrete structure A, and each telescoping arm 3.3 was adjusted to expand and contract, and the same guide rail 1.1 was moved as far as possible. A pair of moving devices 2.2 are brought into contact with the outer surface of the structure A so as to be arranged concentrically with the structure A.

In addition, each of the moving devices 2, 2 and the traveling body 4 has a built-in drive mechanism such as a motor as appropriate, although not shown in the illustration.
For example, rubber wheels 2a, 2 with a high friction coefficient
A, etc. are brought into contact with the outer surface of the existing concrete structure A, so that -1- construction movement can be controlled along the outer surface,
The latter running body 4 can be controlled to run by passing over each of the guide rails 1, 1, and these re-driving mechanisms may be powered from an external power source via a cable or the like, or may be mounted as appropriate. It is designed to be powered from a battery power supply.

Furthermore, the feeding device 5 mounted on the traveling body 4 is
Equipped with a pobin 6 of reinforcing wire 7, and a braking mechanism 8 as appropriate.
The reinforcing wire 7 can be fed out through the guide roll 8 with a predetermined tension, and if necessary,
Room-temperature curing reinforced resin liquid 11 filled in resin impregnation device 10
It is designed so that it can be impregnated with.

As you can see, the reinforcing wire 7 may be made of a conventionally known fiber-reinforced resin. For example, when a composite material made of epoxy resin reinforced with carbon fiber, glass fiber, etc. is used,
This material is highly effective in suppressing the expansion and growth of cracks that occur in concrete structures due to its high tensile strength and light weight. By impregnating the reinforcing wire rod 7 with the room temperature curing reinforcing resin liquid 11,
This reinforcing wire 7 can be viewed in its pliable and easy-to-handle state before hardening.

Therefore, in the device configuration according to this embodiment, a guide rail 1.1 is provided surrounding the existing concrete structure A, and each telescoping arm 3.3 is adjusted to extend or contract, so that the guide rail 1.1 is Rubber wheels 2a, 2a of a pair of moving devices 2.2 are placed as concentrically as possible on the structure A.
is in contact with the outer surface of the structure A, and in this state, first, each moving device 11 is driven to once move the guide rail 1.1 to the upper end position of the structure A, and the traveling body 4 The end of the reinforcing wire 7 fed out from the feeding device 5 above is properly attached to a part of the outer surface of the upper end of the target concrete structure A, and then the traveling body 4 is moved in a certain direction at a certain speed. By controllingly moving the moving devices 2, 2 downward at a predetermined speed at the same time, the reinforcing wire 7 of the feeding device 5 can be moved as it is or, if necessary, by the resin impregnating device 1.
The reinforcing resin liquid 11 is impregnated with the reinforcing resin liquid 11 through the guide roll 8, and the reinforcing wire rod 7 is fed out with a predetermined tension from the guide roll 8, and while the reinforcing wire rod 7 is adapted to the outer surface of the existing concrete structure A, it is stretched from the upper end to the lower end at a predetermined distance. It can be wound continuously in one direction with a tension of
By reciprocating and controlling each of the moving devices 2, 2 downward and upward at a predetermined speed, it is possible to overlap and continuously wind the reinforcing wire 7 on the existing concrete structure A. It is possible to create an earthquake-resistant reinforcement structure by winding the material.

That is, in the case of this embodiment configuration, the guide rail 1 surrounding the existing concrete structure A. Travel control of the traveling body 4 in I-L and each movement device 2 of the guide rail 1.1 itself
．． 2, the reinforcing wire 7 is continuously wound at a predetermined interval pitch, and at the same time, a predetermined winding tension is obtained by controlling the feeding tension of the feeding device 5.

In addition, in the above-mentioned example configuration, the case where the reinforcing wire 7 is wound around the existing concrete structure A having a rectangular cross section has been described, but it can be similarly applied to an existing concrete structure having a circular cross section, for example. Of course.

〔Effect of the invention〕

As detailed above, according to the present invention, in the apparatus for winding reinforcing wire around the outer surface of a concrete structure,
A moving device that surrounds a target structure with a guide rail that can be divided and combined, and that can control the guide rail to move down -L along the structure; and a moving device that can control traveling on the guide rail. The reinforcing wire fed from the feeding device mounted on the running body can be guided to the outer surface of the structure by the guide roll. The wire can be wound continuously at a predetermined tension and one pitch,
For existing concrete structures that are generally subject to various restrictions due to site conditions, it is possible to wind reinforcing wire around the external surface of the structure in an orderly manner and extremely easily as planned. In addition, since the guide rail and the moving device are linked via a telescoping arm, the guide rail can be made to fully correspond to the cross-sectional size of the structure by controlling the telescoping arm. It has excellent features such as being able to always reliably wind the windings.

[Brief explanation of drawings]

1 and 2 are a plan view and a vertical cross-sectional view showing a schematic configuration of an embodiment of the wire winding device according to the present invention, and FIG. 3 is a plan view showing an enlarged running body of the same. be. A; Existing concrete structure B; Wire rod winding device 1.1; Divided guide rail 2.2; Moving device 3, 3; Telescopic arm 4; Traveling body 5; Feeding device 8; Pobbin 7
; Reinforcement wire 8; Braking mechanism 8; Guide roll 10 impregnated with resin 11; Reinforced resin liquid patent applicant Mitsubishi Chemical Industries, Ltd. (and 1 other person) Patent attorney Hasegawa - (1 other person)

Claims (2)

[Claims] (1) A device for winding reinforcing wire around the outer surface of a concrete structure, which includes a guide rail that can be divided and combined so as to surround the target structure, and a telescopic arm attached to the guide rail. a moving device that is connected via a moving device and that can control vertical movement of the guide rail along the structure;
a running body capable of controlling running on the guide rail, and a feeding device capable of feeding out the reinforcing wire at a predetermined tension is provided on the running body, and the reinforcing wire to be fed is connected to a guide roll. A wire winding device for a concrete structure, characterized in that the wire rod can be guided from the wire to the outer surface of the structure. (2) A concrete structure according to claim 1, characterized in that a resin impregnating device is provided on the running body so that the reinforcing wire fed out from the feeding device can be impregnated with the reinforcing resin. Wire winding device for wire rods.