JP3171353B2 - Anchoring muscle of reinforcing bar unit in foundation - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing bar of a unit reinforcing bar in which a vertical streak and a horizontal streak are unitized in advance and installed at a predetermined position.

[0002]

2. Description of the Related Art A unit reinforcing bar as described above is composed of a reinforcing bar unit arranged on a foundation cloth portion and a reinforcing bar unit installed on a fixing portion of a column. These are assembled in a factory in advance and carried to the site. Installed. In this case, since the rebar is interrupted between each rebar unit, it is necessary to arrange a fixing bar in this portion so as to straddle between both rebar units.

Conventionally, a plurality of linear rebars are arranged along the direction in which the rebar units are arranged, and these rebars are tightly connected to the lateral rebars of the respective rebar units to serve as anchoring bars.

[0004]

As described above, in the related art, a plurality of linear reinforcing bars are used as anchoring bars. However, in such a configuration, the number of anchoring bars per location increases, and the number of mounting steps is increased. Not only increases but also the fixing power to the foundation concrete is not necessarily high.

SUMMARY OF THE INVENTION An object of the present invention is to solve the conventional disadvantages and to provide an anchor streak having a high anchoring power to a foundation concrete and easy installation.

[0006]

Means for Solving the Problems To solve the above problems,
Therefore, the present invention relates to a U-shaped
A pair of reinforcing bars formed by bending the shape is, their bent portions same
A welder is welded and connected in a substantially W shape when viewed from a plane, and the bent portion is projected from one rebar unit to the other rebar unit so as to be a tip. I do.

[0007]

As described above, the anchoring muscle is U-shaped or U-shaped.
In the case of the character shape, the structure becomes a structure in which two bar-shaped reinforcing bars are integrally connected, and two or more reinforcing bars can be installed at the same time, so that the workability is improved.

Further , since the bent portion at the tip is fixed to the surrounding concrete, the fixing force is high, and the resistance to the force for separating the reinforcing bar units increases.

Furthermore, since the integrated reinforcement formed in shape or U-shape of the U to W-shape, with the fixing force is further increased, so that can be reduced and construction steps.

[0010]

1 and 2, (1) is a column reinforcement unit arranged at a position where the lower end of the column (2) in FIG. 2 is connected, and (3) is a cloth portion between the columns. 3 shows a beam reinforcement unit to be arranged. The column reinforcement unit (1) is formed in a rectangular shape when viewed from a plane, and has a plurality of hoops (4) (4)... Arranged at intervals above and below, and corners of the hoops (4). A vertical rising streak (5) disposed between the inside of the part and the vicinity thereof,
It is installed at the corner where the pillar (2) is installed.

[0011] On the other hand, the beam muscles unit (3), while being bent shaped towards when viewed from a cross-sectional side of the foundation, a number of hoop which is spaced underlying longitudinal direction (7)
, And horizontal stripes (8), (8), ... in the longitudinal direction of the base attached across the inside of the corners of the hoops (7). It is carried to the site and installed at a predetermined position as shown in the figure.

[0012] (10) is a constant wear muscle, in its central portion a predetermined length of steel bar, the U-shaped or U as in Fig. 3
In this embodiment, the open ends of the straight portions (9) and (9) of the anchoring bars (10) are connected to the beam bars facing the column bar unit (1). It is arranged in the unit (3) and is tightly connected to the horizontal portion above the hoop muscle (7). In this state, the bent portion (11) at the tip of the anchoring bar (10) projects toward the column unit (1) and is inserted into the column unit (1). The portion 11) is bound and connected to the side (12) of the uppermost hoop bar (4) on the side opposite to the opposing beam bar unit (3).

[0013] Then (13) is a W-type fixing muscle implemented according to the invention of this filing, the fixing muscle (13)
As shown in FIG. 4, as shown in FIG. 4, a first bent reinforcing bar (14) having a relatively small width obtained by bending a steel bar in a substantially U-shape or U-shape at the center thereof, A second bent reinforcing bar (15) having a relatively large width bent in a U-shape or a U-shape is welded to each other at the bent portions (11) and (11) to form a substantially W-shape as a whole. It was done. In this example,
The W-shaped second anchoring muscle (13) is made parallel to the first anchoring muscle (10), and slightly more than the lower side of the hoop muscle (7) in each beam muscle unit (3). It is located at a high position. In this W-shaped reinforcing bar (13), substantially four bar-shaped reinforcing bars can be arranged simultaneously.

[0014] each rebar unit in this way (1)
After installing (3) and anchoring bars (10) and (15), concrete (16) is cast around the surroundings. As shown in FIG. 2, an anchor bolt (17) is installed in the column reinforcement unit (1), and the lower end of the column (2) is fixed by the anchor bolt (17).

FIG . 5 shows a case where the W-shaped anchoring bar (13) is installed at a portion where the beam bar units (3) and (3) are joined to each other in a T-shape. The tip of the anchoring muscle (13) protruding from the beam rebar unit (3) protrudes into the other beam rebar unit (3), and is bound to the outer horizontal bar (8) opposite to the connection side. are doing. This is similarly arranged in the U-shaped reinforcing bar (10) in FIG.

[0016]

As described above, according to the present invention, the anchoring bar projecting from one of the rebar units is bent into a U-shape or U-shape between the planes, and the bent portion side protrudes. Unlike the conventional fixing method using a simple straight bar bar, the entire concrete around the bent part resists the pulling direction, increasing the fixing force. There is an effect that a basic structure having high strength can be obtained.

[0017] Moreover, since the four reinforcing bars are integrated, it is good compared to spring to <br/> crab workability when sequentially installing a single bar-shaped reinforcing bar. In addition, the bent parts are directly welded
It is a special connecting member as it is integrated
Is unnecessary, and a lightweight and inexpensive product can be obtained.

Furthermore, since the fixing force by high thus bent portion, there is an effect that it is possible to reduce also the number of the entire fixing muscle.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a connecting portion between a beam reinforcing unit and a column reinforcing unit according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the same.

FIG. 3 is a plan view of a first fixing streak.

FIG. 4 is a plan view of a second fixing streak.

FIG. 5 is a cross-sectional plan view when a second anchoring bar is installed at a T-shaped joint between a beam bar unit and a beam bar unit.

[Explanation of symbols]

 (1) Column reinforcement unit (3) Beam reinforcement unit (10) Anchorage (13) Anchorage (14) Folded rebar (15) Folded rebar

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-285239 (JP, A) JP-A-4-124337 (JP, A) JP-A-4-315616 (JP, A) JP-A-5-315 112952 (JP, A) Hikaru Hei 2-84838 (JP, U) (58) Fields studied (Int. Cl. ⁷ , DB name) E02D 27/08 E02D 27/01

Claims (1)

(57) [Claims] 1. A pair of reinforcing bars formed by bending the shape or U-shaped outline co viewed from plane, their bent portions
Are welded to form a substantially W-shape when viewed from above, and the bent portion is projected from one reinforcing bar unit toward the other reinforcing bar unit so as to be a tip. The anchoring muscle of the rebar unit in the foundation.