JPH0128992Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a reinforcing bar unit assembly device for assembling a reinforcing bar unit used for reinforced concrete walls in civil engineering and construction at a work site and installing it at a construction site.

[Conventional technology]

Traditionally, when constructing reinforcing bars for reinforced concrete walls, for small structures, a reinforcing bar unit was assembled and some of the reinforcing bars were welded and installed at the construction site to prevent deformation during movement. Determine the reinforcing bar installation position on site and install the reinforcing bar 1.
The materials are arranged one by one, and the reinforcing bars are tied together with binding wire and assembled.

[Problem that the invention attempts to solve]

Traditionally, reinforcing bars for walls were assembled vertically;
It is less efficient than assembling in a flat state, and work safety is poor because it is assembled on site.When assembling the walls of a large structure into a unit, it is difficult to assemble the walls vertically using conventional binding wires. When reinforcing bars are welded to maintain their shape, welding defects occur in the reinforcing bars and the strength of the reinforcing bars decreases.

The present invention improves these conventional drawbacks by assembling reinforcing bars in a flat state using an assembly jig, holding the shape with girders without using means such as welding, and installing it vertically at the construction site. This is what I'm trying to do.

[Means for solving problems]

The present invention includes a girder material to which a reinforcing bar assembly jig is attached, a hanging piece attached to one end of the girder material, a rotating part foundation that pivotally supports the other end of the girder material, and the reinforcing bar assembling jig. A reinforcing bar unit assembling apparatus is provided with a screw bar for removably connecting the reinforcing bar unit assembled above to one end side of the girder.

[Effect]

The present invention involves assembling the reinforcing bars on a reinforcing bar assembly jig with the girder horizontal, connecting this reinforcing bar unit to the girder with a screw bar, attaching a hanging wire to the hanging piece, lifting it with a crane, and rotating the girder together with the reinforcing bar unit. Raise the foundation vertically around the pivot point, cut the girder material from the rotating foundation, move it to the construction site using a crane, install the reinforcing bar unit in the designated location, remove the screw bar, and lift the girder material with a crane. It is something that moves.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes an L-shaped lower girder member, and in the horizontal state shown, the horizontal part is long and the vertical part is short. A suspension piece 2 is attached to one end (the left end in FIGS. 1 and 2) of the lower girder 1, to which a suspension wire 3 of a crane can be connected. As shown in FIG. 3, a connecting fitting 4 is further attached to one end of the lower girder 1, and a connecting fitting 6 is attached to one end of the upper girder 5 (the left end in FIGS. 1 and 3). A pin 7 is inserted between them. With this pin 7, one end of the upper beam member 5 is pivotally connected to one end side of the lower beam member 1. The other end of the lower girder 1 (first
Figure 4, Figure 5
As shown in the figure, a connecting fitting 8 is attached, and the connecting fitting 8 is pivotally supported on a rotating part base 10 by a removable pin 9. Rotating part foundation 10
is made of metal fittings fixed in concrete. Adjustment jacks 11 and 12 are attached to the other ends (right ends in FIG. 1) of the lower stringer member 1 and the upper stringer member 5 described above, respectively.

As shown in FIG. 3, a reinforcing bar assembly jig 13 is attached to the lower girder 1.
3, vertical stripes 14 and horizontal strips 15 are arranged. The vertical reinforcement 15 can be detachably connected to one end of the lower beam member 1 by means of a screw bar 16 shown in FIGS. 3 and 7.

As shown in Fig. 6, lower girder material 1 and upper girder material 5
Width raising brackets 17 and 18 are attached to the width raising brackets 17 and 18, respectively, and the upper girder members are fixed by penetrating the width raising members 19 to the width raising brackets 17 and 18 and stopping them with stoppers 20 and 21. 5 are fixed in parallel to the lower beam member 1 so that their width does not increase. By disposing end members 22 for reinforcing bar steadying at right angles to the width raising member 19 and fixing them with fasteners 23, it is possible to prevent the vertical bars 14 from swinging.

When assembling reinforcing bars using the above-mentioned reinforcing bar unit assembly apparatus, a rotating part foundation 10 (see FIGS. 4 and 5) is placed near the construction site where the concrete wall is to be constructed. Then, connect the hanging wire 3 to the hanging piece 2, lift the lower girder 1 and the upper girder 5 vertically with a crane, and rotate the connecting fittings 8 (see Figures 4 and 5) with the pins 9. It is pivoted to the base 10. Then, by operating the crane, the vertical lower girder 1 and upper girder 5 are rotated 90 degrees counterclockwise in FIG. 1 about the pin 9 to bring them to the horizontal position.

Next, in order to avoid getting in the way of placing the reinforcing bars on the reinforcing bar assembly jig 13, the upper girder 5 is rotated 90° or 180° counterclockwise in FIG. Rotate to vertical (see Figure 2) or horizontal position. and vertical line 1
4. Install the horizontal reinforcement 15 (see Figure 3) into the reinforcing bar assembly jig 13.
vertical reinforcements 14 and horizontal reinforcements 15 are tied together using a binding wire to assemble a reinforcing bar unit. The assembled reinforcing bar unit is connected to one end of the lower girder 1 with a screw bar 16 shown in FIG.

After the reinforcing bar unit assembled in this way is connected to one end side of the lower girder 1, the upper girder 5, which has been made vertical or horizontal, is rotated about the pin 7.
Use a crane to rotate 90° clockwise in Figure 1 or
Rotate 180° and place it in a horizontal position above the lower girder 1. Then, as shown in Fig. 6, the width support member 19
are inserted into the width raising brackets 17 and 18 and stopped with stoppers 20 and 21, and are fixed so that the upper beam member 5 does not widen in width with respect to the lower beam member 1. Furthermore, the rebar resting end material 22 is disposed perpendicular to the width support member 19 and fixed with a stopper 23 to prevent the rebar unit from swinging.

Next, the suspension wire 3 connected to the suspension piece 2 is lifted up by a crane, and the lower girder 1, together with the upper girder 5 and the reinforcing bar unit, is rotated 90 degrees clockwise in FIG. Pull it up from the horizontal position to the vertical position and remove the pin 9. The lower girder 1, upper girder 5, and reinforcing bar unit are then lifted up by a crane, moved to the construction site, and lowered onto the foundation 24 constructed with concrete blocks as shown in Figures 8 and 9. . And upper girder material 5
Adjust the horizontal position of the front, back, left and right between the base 24 and the lower girder 1 using the portable jack 25.
The vertical position is adjusted using adjustment jacks 11 and 12 attached to the other end (lower end in the vertical state) of the upper beam member 5.

After adjusting the position in this manner, each reinforcing bar of the reinforcing bar unit is tied to the previously placed reinforcing bar.
Then, the screw bar 16 and portable jack 25 are removed, and the lower girder 1 and upper girder 5 are separated from the reinforcing bar unit and lifted up with a crane, moved to the reinforcing bar unit assembly area, and then assembled again for the next reinforcing bar unit. use.

[Effect of idea]

The present invention allows reinforcing bars to be assembled efficiently and safely in a horizontal state, and furthermore, this assembled reinforcing bar unit can be installed in a vertical state without deforming, which has the effect of streamlining the reinforcing bar assembly work.

[Brief explanation of the drawing]

Fig. 1 is a front view of an embodiment of the present invention, Fig. 2 is a perspective view of Fig. 1, Fig. 3 is an enlarged view of the part shown in Fig. 1, and Fig. 4 is an enlarged view of the part shown in Fig. 1. , Fig. 5 is a side view of Fig. 4, Fig. 6 is an enlarged view of the part shown in Fig. 1, Fig. 7 is an enlarged view of the part shown in Fig. 1, and Fig. 8 is a front view of the part shown in Fig. 1. 9 is a cross-sectional plan view of FIG. 8. In the figure, 1 is the lower girder material, 2 is the hanging piece, 10 is the rotating foundation, 13 is the reinforcing bar assembly jig, 14 is the vertical reinforcement, 1
5 indicates a transverse strip, and 16 indicates a threaded bar.

Claims (1)

[Scope of utility model registration request] A girder with a reinforcing bar assembly jig attached, a hanging piece attached to one end of the girder, a rotating part foundation that pivotally supports the other end of the girder, and a girder assembled on the reinforcing bar assembly jig. A reinforcing bar unit assembly device comprising: a screw bar for detachably coupling a reinforcing bar unit to one end of the girder.