JPH06193195A - Arranging structure for big-sized reinforcement - Google Patents

Abstract

PURPOSE:To reduce the cost of working by an arrangement wherein a beam- reinforcing main bar at the part to the outside of a column, at which part big-sized column-reinforcing main bars and the beam-reinforcing main bar intersect with each other, is replaced with a connector having through holes on the side thereof and is connected with the connector and the column-reinforcing main bars are inserted into the through holes on the connector. CONSTITUTION:Big-sized vertical column-reinforcing main bars 1 comprising a column, big-sized horizontal beam-reinforcing main bars 2 comprising a girder and reinforcing bars 3 against shearing are arranged. The beam-reinforcing main bar 2 at the part where the column-reinforcing main bars 1 at the position to the outside of the column and the beam-reinforcing main bar 2 intersect with each other, is replaced with a connector 4 having through holes 5 vertically opening at the side thereof. After that, four pieces of the column-reinforcing main bars 1 are inserted into the through holes 5 on the connector 4 two by two, and reinforced concrete structure is constructed by placing concrete 6. Therefore, the amount of the concrete can be reduced by minimizing the covering depth of the concrete.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing bar or a reinforcing bar structure of a large diameter reinforcing bar which constitutes a reinforced concrete structure.

[0002]

When constructing columns, girders, wall type rigid frame type structures, etc. using reinforcing bars,
It is necessary to cover concrete with a specified thickness from the outer surface of the reinforced bar. Since the thickness of the reinforcing bar is particularly large at the portion where the large diameter reinforcing bars (φ22 to 38) intersect, the thickness of the concrete including the cover thickness is inevitably large, which causes a high cost.

The present invention has been made in view of the above problems. Its purpose is to propose a reinforcing structure for large diameter reinforcing bars that can minimize the cover thickness.

[0004]

[Means for Solving the Problems] In this reinforcing bar structure of large diameter reinforcing bars, in the reinforcing bar structure in which two large diameter reinforcing bars cross each other, the intersecting part of one reinforcing bar is replaced with a joint metal fitting having a through hole on the side surface. ,
It is characterized in that the other reinforcing bar is inserted through the through hole of the joint metal.

This bar arrangement structure is preferably used for bar arrangement of a reinforcing bar where beams are gathered, a steel frame reinforced concrete column, or a wall type rigid frame structure having the same wall thickness.

The joint metal fitting is made of steel or casting and has a length of 600.
It is about 1600 mm. The metal fitting has a tubular joint provided at the end and is joined to the reinforcing bar by mechanical (screw-screw) or pressure welding.

[0007]

EXAMPLE An example shown in FIG. 1 shows a reinforcing structure of a corner portion of a reinforced concrete structure where columns and beams intersect. A vertical large-diameter column main bar 1 forming a column, a horizontal large-diameter beam main bar 2 forming a girder, and a shear reinforcing bar 3 are arranged.
In this bar arrangement, the column main bar 1 and the beam main bar 2 located outside the column
The beam main bar 2 at the intersection of and is replaced with a joint metal piece 4. The joint metal piece 4 has a through hole 5 having a large lateral width, which is opened in the vertical direction on the side surface, and both ends thereof are joined to the main beam 2. Two of the four column main bars 1 intersecting each other are inserted through the through holes 5 to arrange the bars, and concrete 6 is placed to construct a reinforced concrete structure.

The embodiment shown in FIG. 2 shows a side bar arrangement structure of a reinforced concrete structure where columns and beams intersect. There are arranged a large-diameter column main bar 1 in the vertical direction forming a column, a large-diameter beam main bar 2 in the horizontal direction forming a girder, and a shear reinforcing bar 3,
The beam main bar 2 at a position closer to the outside of the column where the column main bar 1 and the beam main bar 2 intersect is replaced with a joint metal fitting 4 which is joined. The joint hardware 4 has three through-holes 5 with a wide width that are vertically opened on the side surface.
The column main reinforcements 1 of 5 columns are arranged by inserting the through holes 5 and placing concrete 6 to construct a reinforced concrete structure.

The structure of the embodiment shown in FIGS. 1 and 2 is shown in FIG.
As shown in (a), the main reinforcement 1 of the column is connected to the main reinforcement 2 of the beam, and the through hole 5 of the joint metal fitting 4 is inserted through the main reinforcement 1 and the main reinforcement 2 of the beam shown in FIG. 3 (b). Compared to the case of arranging
The cover thickness t from the outer surface of the reinforcing bar is made equal, and the beam main bar 2
The concrete thickness T from the center can be reduced.

The embodiment shown in FIG. 3 shows a reinforcing structure of a reinforced concrete column portion where a large beam and a small beam intersect. The four beam beams 7 and beam beams 8 form two upper and lower steps, and the beam beams 7 at the intersection where they intersect are replaced with the joint hardware 4, and the beam beams are wide through holes 5 opened on the lateral side of the joint metal. It is constructed by inserting 8 and arranging and placing concrete 6.

In this embodiment, the vertical relationship in the relationship between the girder reinforcement 7 and the girder reinforcement 8 is eliminated, and it becomes possible to ensure proper fogging and cross-sectional performance of the beam.

As the joint metal piece 3, one having a length corresponding to the length of the reinforcing bar crossing portion is used. 5 (a), (b), (c), (d),
(e) shows an example of a column width and a metal fitting with a length suitable for the column width.

The metal fitting used at the outermost end has a joint portion only at one end.

[0014]

The present invention is as described above. According to this reinforcing structure, the concrete cover thickness can be minimized and the amount of concrete can be reduced. At the same time, it has the effects of improving concrete filling properties by the ability to place concrete, ensuring quality by smoothing the concrete surface, and promoting the prefabrication of reinforcing bars.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a reinforcing structure of a corner portion of a reinforced concrete structure according to an embodiment.

FIG. 2 is a transverse cross-sectional view showing a side bar arrangement structure of a reinforced concrete structure according to an embodiment.

3 (a) and 3 (b) are cross-sectional views showing the relationship between this bar arrangement structure and the conventional bar arrangement structure and the concrete cover thickness.

4 (a) and 4 (b) are a horizontal cross-sectional view and a cross-sectional view taken along the line AA showing a reinforcing structure of a column portion where a large beam and a small beam of the embodiment intersect.

FIG. 5 is an explanatory view of a column width and a joint fitting having a length suitable for the column width.

[Explanation of symbols]

1 ... Column main bar, 2 ... Beam main bar, 3 ... Shear reinforcement, 4 ... Joint metal, 5 ... Through hole, 6 ... Concrete, 7 ... Large beam rebar, 8 ...
Beam girder rebar.

Claims (1)

[Claims] 1. In a bar arrangement structure in which two large-diameter reinforcing bars intersect each other, an intersecting portion of one reinforcing bar is replaced with a fitting metal having a through hole on a side surface, and the other reinforcing bar is inserted through a through hole of the fitting. Reinforcing structure of large-diameter reinforcing bars characterized in that