JP2503252Y2 - Construction beam main bar stopper - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION This invention is a metal fitting for securely holding the beam main bar under the beam portion at both ends of the lower corner portion of the stirrup bar in the reinforcing bar work of construction work. Regarding

[0002]

2. Description of the Related Art Conventionally, particularly in the work of reinforcing bars in tall beams, the method of first assembling the beam reinforcement on the slab and dropping it into the beam formwork or dropping the stirrup reinforcement into the beam formwork. Then, it is common to drop the main beam of the beam and assemble the beam reinforcement within the beam form, and at that time, place the beam main reinforcement on the lower side of the beam section at both ends of the corner section on the lower side of the stirrup reinforcement. In order to do so, U-shaped rebars and metal fittings are manufactured at the required intervals at both ends of the lower corner of the stirrup bar at the construction site, etc., welded and attached, and the U-shaped The beam main bars were fitted to the reinforcing bars, and they were placed at both ends of the lower corners of the stirrup bar. In addition, after constructing a beam form, such as the actual Kaihei No. 171813,
When constructing a beam reinforcement, drop the stirrup reinforcement into the beam formwork, drop the beam main reinforcement below the beam, and then insert a clip-shaped metal object made of steel wire etc. from above the slab. A method of attaching and fixing to the lower corner portion of the stirrup bar and the main beam bar with a bar-shaped fitting is disclosed.

[0003]

Regarding the above-mentioned conventional method, in the method of welding U-shaped reinforcing bars or the like, U-shaped reinforcing bars or the like are respectively attached to both ends of the lower corner portion of the stirrup of the beam portion. The work for mounting is troublesome, and since the mounting method is welding, welding cannot be performed in rainy weather, and the mounting work is greatly affected by the weather such as being affected by the weather. Moreover, welding the rebar as a structure is
There are also structural problems, such as causing cross-section defects. When the beam reinforcement is assembled in the form, the attachment work of the U-shaped rebar or the like is performed under the slab, so that the attachment becomes very difficult and the work efficiency is lowered. Also, the method of using the clip-shaped hardware is that before attaching the clip-shaped hardware to the lower corner part of the stirrup bar and the beam main bar, clip the beam main bar to both ends of the lower corner part of the stirrup bar. If it is necessary to place it in a position where a metal object can be attached, and there is a beam back and is out of the reach of the worker, it is extremely difficult to place a beam main bar that is several meters in place. It is difficult and time-consuming work. Furthermore, after arranging the beam main bars at both ends of the lower corner portion of the stirrup bar, the worker attaches the clip-shaped metal fittings on the slab to the stirrup bar and the beam main bar by using a rod-shaped fixture. Are required, are very difficult, and have poor workability.

[0004]

The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to fix the lower corner portion of the stirrup bar before dropping the stirrup bar into the beam form. It can be easily installed without the need for welding at the required positions on both ends, and after dropping the beam main bar into the beam formwork, the beam main bar can be moved to the desired location and the time and effort to place it can be eliminated. (EN) Provided are construction beam main reinforcement fasteners that can be easily arranged at the lower corners of slur laps.

As a means therefor, L-shaped holding pieces projecting upward are respectively formed at the lower ends at both edges of the metal fitting body formed in a semi-circular shape along the reinforcing bar, and project horizontally. It is characterized in that the foldable locking pieces are formed so as to be alternately vertically arranged.

With the above structure, since the L-shaped holding pieces projecting upward are formed at the lower ends of both edge portions of the fastener main body, the lower beam main bar can be surely held, and the lateral shift of the left and right sides can be ensured. Don't worry too. Further, since the holding pieces are formed on both edges of the fastener body, the space between the holding portions becomes hollow, and the hollow portion has a lower corner portion of the stirrup streak, that is, an almost L-shape. The curved reinforcing bars are fitted in the lower side, and the beam main bars can be reliably arranged at the corner portions of the stirrup bars. Before the stirrup bar is dropped into the beam form, the lower side of the stirrup bar is inserted because the foldable locking pieces that project horizontally are alternately formed on both edges of the fastener body. It can be easily installed without the trouble of welding at the required positions on both ends of the corner. Also, by changing the degree to which the locking piece is wound, even when building a beam reinforcement in the form, it can be attached at an appropriate position above the stirrup and moved downward along the stirrup. The conventional problems described above can be solved such that even a deep beam bottom can be easily attached and arranged.

[0007]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of a beam main bar stopper according to the present invention, in which the stopper main body 1 formed in a semi-arcuate shape along the reinforcing bar projects upward at the lower ends of both green parts. The holding pieces 2 and 2 formed to face each other in an L shape, and the foldable locking pieces 3 and 3 which vertically project from both edge portions of the fastening metal body 1 in a vertically alternating manner, are thin iron plates. Form integrally. Further, a rib 5 for lateral reinforcement is provided on the lower side of the fastener main body 1 and substantially in the center of the holding pieces 2 and 2.
When the lower locking piece 3 on one end of the fastener body 1 and the lower locking piece 3 on the other end protruding up and down alternately on the lower part of the upper locking piece 3 on one end of the stopper body 1 are wound around the reinforcing bar. , The projecting pieces 4 for preventing the upward displacement are integrally provided.

Next, an example of the use of the beam main bar stopper according to the present invention will be described with reference to the drawings. FIG. 2 is a side view showing a use state of the beam main bar stopper according to the present invention.
FIG. 4 and FIG. 4 are perspective views showing a state in which the beam main bar stopper according to the present invention is attached to the reinforcing bar. As shown in FIG. 3, first, apply the fastener body 1 of the present invention from the outside of the lower corner portion of the slur wrap streak C, and bend the locking pieces 3 and 3 so as to wind the stirrup streak C. , Fix it in place. At that time, the lower locking piece 3 of one end of the fastener main body 1
When it is wound around the stirrup streaks C, it is wound so as to be locked to the protruding piece 4. After being attached to the lower corners of the stirrup streak C at required intervals, the beam main stirrup B is fitted into the holding pieces 2 and 2 of the fastener body 1 and placed as shown in FIG. Thereafter, as shown in FIG. 2, another lower beam main reinforcement E and an upper beam main reinforcement F are arranged and fixed to the stirrup reinforcement C to form a beam reinforcement D. Further, when assembling the beam reinforcement D in the beam form A, the degree of winding of the locking pieces 3 is loosened, and first, as shown by the phantom line in FIG. It is also possible to attach the beam main bar B to the holding pieces 2 and 2 by mounting it at a position, moving it down along the stirrup streak C, and arranging it at the required position.

[0009]

As described above in detail, according to the construction beam main bar stop fitting of the present invention, L-shaped holding pieces projecting upward are formed at the lower ends of both edges of the stop body. , The lower beam main bar can be securely held, lateral slippage does not occur, and work reliability and reliability are improved. In addition, since the holding pieces are formed on both edges of the fastener body, the holding portions are hollow, and the hollow portion has a lower corner portion of the stirrup streak, that is, approximately L.
The lower side of the reinforcing bar curved in the mold is fitted, and the beam main bar can be reliably arranged at the corner portion of the stirrup bar, and accurate bar arrangement work can be performed. Furthermore, since the horizontally projecting foldable locking pieces are formed alternately on both edges of the fastener body, respectively, the stirrup bar of the stirrup bar is inserted before dropping the stirrup bar into the beam form. It can be easily installed without the need for welding at the required positions on both ends of the lower corner, speeding up the work,
It can be simplified. Also, by changing the locking degree of the locking piece, even when building a beam reinforcement in the formwork, attach it to the required position above the stirrup and move it down along the stirrup. Thus, it is possible to obtain a practically useful construction beam main bar stop fitting that can be easily attached and arranged.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a beam main bar stopper according to the present invention.

FIG. 2 is a side view showing a use state of a beam main bar stopper according to the present invention.

FIG. 3 is a perspective view showing a state where a beam main bar stopper according to the present invention is attached to a reinforcing bar.

FIG. 4 is a perspective view showing a state where the beam main bar stopper according to the present invention is attached to a reinforcing bar.

[Explanation of symbols]

 1 Main body of retaining bracket 2 Holding piece 3 Locking piece A Beam form B Beam main bar C Stirrup bar D Beam bar E Lower beam main bar F Upper beam main bar

Claims (1)

(57) [Scope of utility model registration request] 1. An L-shaped holding piece projecting upward is formed at the lower end at both edges of a metal stopper body formed in a semi-arcuate shape along a reinforcing bar, and can be bent so as to project horizontally. Main beam retaining metal fittings for construction, characterized in that different locking pieces are formed so as to alternate vertically.