JPS59224756A - Upport jig of reinforcing iron - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a support for reinforcing bars that holds reinforcing bars, such as connecting bars that connect beam main bars, to column steel frames, column main bars, or main steel materials.

For example, when constructing assembled IζC beams on both sides of a column steel frame, the opposing beam main reinforcements are connected with through bars or connection bars, but when placing reinforcements with this type of reinforcement, at least the main reinforcements at the four corners of the beam are connected to the column steel frame due to the temporary bearing capacity. The conventional support method for this purpose is to drill reinforcing bar insertion holes in both flanges of the column steel frame, and pass threaded reinforcing bars through the opposing insertion holes.
It is supported between both seven rungs by being fixed to the flange with nuts, and both ends of the supported reinforcing bars are connected to the main reinforcement of the beam. However, according to this method, holes are drilled in seven lunges of the column steel frame, so this method could not be adopted for the type of column steel frame that is subject to the shadow of cross-sectional defects. Another method is to weld the connecting reinforcement directly to the column steel frame or, in the case of RC columns, to the column main reinforcement, but this method makes it difficult to make fine adjustments during erection.

The purpose of the present invention is, for example, when RC assembly beams are temporarily installed on a column steel frame, it is possible to do this regardless of the type of column steel frame, it is easy to make fine adjustments during construction, and the temporary structure can be secured. An object of the present invention is to provide a support for reinforcing bars that can simplify construction and improve integrability.

A cylindrical body is provided, and reinforcing bars such as connection bars can be supported within the support hole of this supporting cylindrical body, and the reinforcing bars are supported by the supporting cylindrical body, and fixed by a fixed body in cooperation with the supporting cylindrical body. It is something.

Embodiments of the present invention will be described below based on the drawings.
In FIG. 2, the support cylinder l is cylindrical and made of steel, cast metal, etc., and the inner diameter of the support hole 1a is long enough to allow the connection line C to pass through. A plate 2 is fixedly attached to the outer circumference of the support cylinder 1 in a direction perpendicular to the axial direction. In this installation, the plate is attached to the column steel frame P, and has the role of keeping the distance between the support cylinder l and the column steel frame a predetermined length.

In addition, two screw holes 1b are provided in the outer periphery of the support segment 1 in the radial direction.
, 1b are provided, and a bolt 3.3 as a fixing body is attached to each screw hole. Each bolt has an end protruding into the support cylinder 1 and a connecting rod C passing through the support cylinder. of,
It can be fixed to the support cylinder.

In addition, as shown in Fig. 3, the rear ends of the joint pipes J and JaO are fitted and crimped at both ends of the connecting bar C, and female threads Jb and Jb are provided on the inner periphery of the tip openings of both joint pipes. .

Next, as an example of use, a case will be described based on FIG. 1 in which connecting reinforcements that connect main beam reinforcements of assembled beams disposed on both sides of a column steel frame are supported. At the factory or on site, the support cylinder 1 is installed in advance on both flanges Pa and P of the column steel frame P via the plate 2.
Let's defeat the evening of b to the side. In this installation, the support 1' and the Ifm body are positioned horizontally opposite to the main beam reinforcements R and Ra of the assembly beams B and Ba, respectively, which are constructed on the image side of the column steel P. Then, the connecting bars C... are inserted between the supporting cylinders 1.1 facing each other in the horizontal direction, and each connecting bar is connected to the bolt 3.1. ...Temporarily fix it. In this state, the column steel frame P is first erected, and then the assembled beam B is lifted onto one of the 7-lunge Pa sides of the column steel frame using a crane, and the beam main reinforcement R
1. The end of the joint pipe J7. ... to the joint pipe J of the connection bar C, and make one bet pipe J1 +
Screw the tension rods S, which are pre-installed into ..., into the joint pipes J, ..., and secure them with nuts N, N.

In this way, the assembly beam B on the negative side is connected to the connecting reinforcement C.

Similarly, for the assembly beam Ba on the other side, the joint pipes J a r J are connected by threaded rods S, . . . , and nuts N are connected.

Fix it at N and connect the beam main reinforcements Ra, . . . to the connection reinforcement C. Tighten the bolt 3.3 firmly and connect the connecting muscle C.
By fixing 1- to the supporting cylinders l, . . . , the installation work of the assembly beam B*Ba is completed.

Another example of use of the support will be explained based on FIG. 4. In this example, anchor muscle A is supported by a support. In other words, on the outer surface of one flange Pa of the column steel P, attach the plate 2 ([-seal so that the supporting cylinder l faces the beam main reinforcement R of the assembled beam B), and fix the joint vibe Jsk to one end. The anchor reinforcement A (i-1) is inserted through the support hole 1a of the support cylinder 1, and the joint pipe J is connected to the joint vibe J1 of the beam main reinforcement R of the assembled beam B via the threaded rod S, and this connection work After completing this step, firmly tighten the bolts 3.3 to fix the anchor bars A to the supporting cylinder 1.

According to the upper support, the attachment to the flange Pa or pb of the plate 2 is at a different position for the spacing of the main beam reinforcements R (or Ra) in the horizontal direction, which varies depending on the beam width of the assembled beam B or Ba. The opposing position of the support cylinder 10 can be adjusted by simply changing the width of the beam, which has the advantage that the width of the beam reinforcement is not limited by the flange width.

For attachment, rod-shaped legs may be used instead of the plate.

Furthermore, as shown in FIG. 5, when installing the supporting cylinder l, the plate 2 is
It may be attached to the column main reinforcements R, , R, of the C column P1. Then, it is fixed within the support cylinder 1 with beam through reinforcements Ca'j<bolts 3. Another embodiment of the support will be described with reference to FIG. 6.7.

In the example shown in FIG. 6, the plate 12 is attached to the support cylinder it by fixing one end of the plate 12 along the axial direction of the support hole 11a. Then, the plate 12 is attached to, for example, a single-column steel web Pc shown in FIG. 1, the connecting bar C is held in position, and this reinforcing bar is fixed at 13° 13. When the connecting reinforcements C are arranged in a direction along the outer surfaces of the flanges Pa and Pb of the column steel frame, the plate 12 is attached to the outer surfaces of the flanges. Note that the support cylinder 11 may be formed by bending one steel plate -fIIl into a cylindrical shape, and this support cylinder may be attached integrally with the plate J2.

In the example shown in FIG. 7, the support is constructed by combining a pair of T14 plates, with the support cylinder 21 on the - side and the mounting plate 22 on the other side. 21a is a support hole, and 23 is a bolt.

It is not essential to have a plate for mounting the support; for example, as shown in FIG. It may be attached directly to the outside surface of the In this example as well, in the case of a column steel frame that is not affected by the 1lyr surface defect due to the support hole 31a, the support cylinder 1 may be placed on the 7-lunge Pa and used as shown in Figure @9. .

The beam is not limited to an assembled beam, but may be a 1.1-inch PC beam.1. The number of bolts is not limited to one in two, but may be one as long as it can hold the reinforcing bars. Pol as a fixed body)
If the reinforcing bar is used 71, it is easy to support the reinforcing bar, but a wedge or the like may also be used.

As explained above, according to the present invention, there is no need to drill holes for inserting reinforcing bars into the column steel frame as in the past, so there is no problem of cross-sectional loss of the steel frame, and it is possible to use RC columns without worrying about the type of column steel frame. Also 9. Special reinforcing bars such as threaded reinforcing bars can be temporarily installed, and connecting bars can be identified and maintained while fine adjustments can be made during construction even if special reinforcing bars such as threaded reinforcing bars are not used.

[Brief explanation of the drawing]

Figures 1 and 2 show an embodiment of the present invention.
Fig. 1 shows the state of use -J perspective view, Fig. 2 is a sectional view, Fig. 3 is a partially sectional front view of the connecting bar, and Figs. 4 and 5 show other usage examples of the present invention, respectively. FIGS. 6 to 9 are perspective views showing other embodiments of the present invention. 1, 11, 21, 31...Support cylinder, 1 a
, lla. 21a, 31a... Support hole, 2.12.22... Mounting plate, 3, 13, 23. 33... Bolt that is the fixing body, A... Anchor bar, C... Connection bar , Ca...
Beam through reinforcement, P...Column steel frame, P,...RC column, R, I
ζa...beam main reinforcement, Jζ1...column main reinforcement 8 Patent applicant Hasegawa Construction Co., Ltd., Figure 4, Prison 5, Pl 61, Collection 7, Fan 9,

Claims (1)

[Scope of Claims] A fixing body that supports and fixes the reinforcing bars and a supporting device for the reinforcing bars that includes the entirety of the reinforcing bars. +21% Permissible scope In claim 1, the supporting cylinder is attached to the main steel material through a plate. (3) In claim 1, the fixing body is a bolt attached to the supporting cylinder so as to be movable in the radial direction of the cylinder. Support.