JPH0357262B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a column form reinforcing tool that also serves as a reinforcing bar guide for use when pouring concrete into columns.

(Prior Art) Conventionally, in order to cast concrete for a column, a weir was built around the column reinforcement via spacers, the four corners and other areas were covered with flaps, and these were tightened with binding material.

(Problems to be Solved by the Invention) According to the above construction method, when pouring concrete, it is difficult to maintain the distance between the main column reinforcement and the sheath plate using spacers alone, and as a result, the main column reinforcement may shift from its predetermined position. There was an inconvenience that the concrete was poured in the same condition, or that the concrete could not be poured for the columns according to the specified dimensions.

According to the present invention, it is an object of the present invention to provide a column formwork reinforcing tool that also serves as a reinforcing bar guide to eliminate such inconveniences.

(Means for Solving the Problems) The present invention comprises a frame-shaped column form reinforcement body that is engaged with an end of a column form, and a reinforcing bar guide plate that has a reinforcing bar engagement recess formed approximately in the center thereof. The present invention is characterized in that holding portions are provided at at least two corners of the main body of the column form reinforcing device to hold the reinforcing bar guide plate in a state spanning two adjacent frame sides.

(Function) According to the above configuration, after assembling the column formwork around the column reinforcement in the same manner as in the past, the frame-shaped column form reinforcement main body is engaged with the upper end of the column formwork, and at least two A column main reinforcement is fitted into a recessed portion approximately in the center of a reinforcing bar guide plate disposed at a corner of a location so as to straddle two frame sides. If concrete is poured into the column formwork after that, the column formwork will not be deformed by the weight of the concrete, and the column main reinforcement will be inserted into the column formwork via the reinforcing bar guide plate and the column formwork reinforcement body. Since it is fixed, concrete can be poured into the column formwork while the column main reinforcement does not shift from its predetermined position.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

In the drawings, reference numeral 1 denotes a frame-shaped column form reinforcement body, which has a size that fits into the inner peripheral surface of the assembled column form A, and has a flange 1 at one end.
A is formed. In the illustrated example, in order to erect the reinforcing bar guide plate 2 at each of the four corners of the flange 1A so as to straddle two frame sides, the thickness of the reinforcing bar guide plate 2 is set on each of the two frame sides. Two retaining plates 3, 3 are arranged oppositely at an interval corresponding to the distance between the retaining plates 3 and 3. The reinforcing bar guide plate 2 has a recess 2A having a diameter approximately equal to the diameter of the reinforcing bar, that is, the main column reinforcement B, formed in its substantially central portion, and does not protrude from the outer edge of the flange 1A when held by the retaining plates 3, 3. It has a full length.

Reference numeral 4 denotes a U-shaped member having a base flange 1A fixed to the center of each frame side, and this member 4 is for fixing a pipe C passed from the floor into this member 4.

The reinforcing device main body 1 of the above embodiment fits into the upper end portion of the column main frame A, and its flange 1A abuts against the edge of the column form A. A column main reinforcement B is fitted into a recess 2A formed in the center of a reinforcing bar guide plate 2 which is fitted and erected between holding plates 2, 2 at four corners of the main body 1. A pipe material C placed on the floor is passed through the U-shaped member 4 and fixed to prevent the column formwork A from tilting. After doing this, concrete is poured from the top of the column formwork A. The amount should be up to the lower edge 5 of the reinforcing device main body 1. Column form A tends to expand outward due to the heavy pressure of poured concrete, but this is restrained by normally used fastening devices such as separators and form ties, and the inward bending of the upper end of column form A is prevented by reinforcement. It is restrained by the tool body 1. The movement of the column main reinforcement B due to the concrete is also inhibited by the reinforcement guide plate 2.

In the illustrated embodiment, reinforcing bar guide plates are provided at the four corners of the reinforcing tool body, but two or more reinforcing bar guide plates may be provided.

(Effects of the Invention) According to the present invention, the column formwork is reinforced, its accuracy can be sufficiently ensured, and the reinforcing bars can be held in a predetermined position with respect to the column formwork, and its configuration is simple. There are other effects.

[Brief explanation of drawings]

FIG. 1 is a plan view of the main parts of an embodiment of the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a perspective view of other main parts. DESCRIPTION OF SYMBOLS 1... Column form reinforcement body, 2... Rebar guide plate, 3... Holding plate, 4... U-shaped member, 5...
...lower edge.

Claims (1)

[Claims] 1 Consists of a frame-shaped column form reinforcement body that is engaged with the end of the column form and a reinforcing bar guide plate having a rebar engagement recess formed approximately in the center, and at least two of the column form reinforcement body A column form reinforcing tool that also serves as a reinforcing bar guide, characterized in that a holding part is provided at each corner of the corner to hold the reinforcing bar guide plate in a state where it straddles two adjacent frame sides.