JP2697807B2 - Reinforcing cage assembly / building equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for assembling and building a reinforced cage in a reinforced concrete skeleton construction work.

[0002]

2. Description of the Related Art When assembling and constructing a reinforcing cage composed of a plurality of reinforcing bars sequentially with the construction of a frame, assembling all reinforcing bars at a construction site requires a long construction time and a large number of man-hours. In addition, it is dangerous work such as up and down work.
Therefore, installation is often performed at the construction site after prefabrication. An example of the reinforcing bar prefabrication method will be described with reference to FIGS. 19 to 39 using a reinforcing bar cage for an underground tank as an example.

In FIG. 19 and FIG. 20, a plurality of vertical bars 2 and circumferential bars 3 are provided on a reinforcing bar assembly 1 and tied to form an outer mesh bar 4 and an inner mesh bar 5.

Then, as shown in FIGS. 21 and 22,
The inner net reinforcement 5 is set on the reinforcing bar assembly base 1A, and a plurality of reinforcing frames 6 made of angle materials are attached.

Next, as shown in FIGS. 23 and 24,
After the outer reticulation bar 4 is set on the reinforcing frames 6, 6,..., The stirrup bars 7, 7A shown in FIGS.
Alternatively, as shown in FIG. 28, the worker M enters the inside of the reinforcing bar assembling base 1A by 7B, and connects the outer net reinforcing bar 4 and the inner net reinforcing bar 5 to assemble the reinforcing bar cage 8.

Next, as shown in FIG. 29, a plurality (three in the illustrated example) of reinforcing bar cages 8 are temporarily stacked through a plurality of (three in the illustrated example) spacers 9 and 9a.

[0007] Then, as shown in FIG. 30, the rebar basket 8 is moved to the site.

At the site, as shown in FIGS. 31 and 32, the reinforced basket 8 is hung by the main winding hook 11, the hanging jig 12, the hanging wire rope 13 and the auxiliary winding hook 14 of the crawler crane 10, and is built in the direction of the arrow. Wake up. At this time, in order to reinforce the longitudinal rigidity of the reinforcing bar 8, a plurality of lattice bars 15
Install.

Next, as shown in FIGS. 33 and 34,
The lower end of the vertical bar 2 of the reinforcing bar 8 is connected to the existing lot concrete C.
Longitudinal stripes 2a protruding from the top surface of the
Erected and united. In addition, the code | symbol A in a figure is a segment, B is a formwork frame.

Next, as shown in FIG. 35, circumferential bars 3a are previously distributed on the existing lot concrete C. These circumferential bars 3a may be moved laterally from the side, or as shown in FIG. 36, the circumferential bars 3a may be lifted and distributed below the reinforcing bar cage 8.

Next, as shown in FIG. 37, the circumferential muscle 3a is attached to the overlap portion L.

Next, as shown in FIGS. 38 and 39,
The worker M enters the built-in reinforcing bar cage 8, and connects the circumferential bars 3a, 3a on both sides of the overlap portion L with the stirrup bar 7, and binds them.

[0013]

In the conventional prefabrication method, the reinforcing frame 6 (FIG. 21) is not a permanent member, but is buried, resulting in waste and increased cost.

The connection of the outer reticulum 4 and the inner reticulum 5 by the stirrup muscle 7 in FIG.
And the connection work is difficult, requiring a lot of time and labor, and the number of reinforcing bar assembly bases 1A also increases.

The temporary placement of the rebar basket 8 in FIG. 29 is limited to three steps from the viewpoint of strength, and a large temporary placement space is required.

Further, the attachment of the lattice bars 15 for reinforcing the reinforcing bar cage 8 in FIG. 31 is troublesome and buried, so that it is useless.

Further, the binding of the vertical streaks 2 and 2a in the overlap portion L in FIG. 34 is inferior in workability because the lattice streaks 15 are in the way and access is difficult.

The circumferential muscle 3 shown in FIGS.
Arrangement of a is troublesome and dangerous.

Further, the installation of the circumferential streaks 3a of the overlap portion L in FIG. 37 is performed by the worker M entering the inside of the reinforcing bar cage 8, so that the workability is poor and dangerous.

Further, since the stirrup 7 of the overlap portion L in FIGS. 38 and 39 is attached by the worker M inside the reinforced cage 8, the work is difficult, the workability is poor, and Poor quality.

As described above, assembling and installing the rebar basket 8 by the conventional prefabrication method involves waste of materials, poor workability, and is dangerous.

An object of the present invention is to provide a rebar cage assembling / building apparatus which is safe and has good workability without waste of materials.

[0023]

According to the present invention, a fixed side frame standing on a base frame and having a shape corresponding to the shape of the outer mesh line is provided. A movable side frame having a shape corresponding to the streak shape, an interval adjusting means for adjusting an interval of the movable side frame with respect to the fixed side frame, and a suspension beam receiver for connecting the tops of the both side frames so as to be able to adjust the interval. A girder, an outer mesh reinforcement beam and an inner mesh reinforcement beam that are supported by the suspension beam receiving girder and hang the outer mesh reinforcement and the inner mesh reinforcement, respectively, and a suspension beam connection girder connecting the two suspension beams. Provided.

It is preferable that the distance adjusting means comprises a traveling frame for supporting the inner reticulation side frame, and a traveling drive cylinder interposed between the traveling frame and the base frame.

It is preferable to provide several floors of work floors on both side frames.

[0026]

In the rebar cage assembling / building apparatus constructed as described above, the outer net reinforcement is supported on the suspension beam receiving girder to set the outer net reinforcement, and the inner net reinforcement is similarly set. After inserting the stirrup muscle from the outer reticulum side frame side and binding one end to the circumferential muscle of the outer reticulum muscle, expanding the interval between the two side frames by the interval adjusting means to connect the other end of the stirrup muscle. Assemble the reinforcing bar cage by hooking and tying it to the circumferential muscle of the outer mesh bar.

Next, the two suspension beams are connected by a suspension beam connecting girder, and the reinforcing bar cage is hung through the connecting girder, moved and built at a predetermined position.

[0028]

Embodiments of the present invention will be described below with reference to the drawings.

In FIGS. 1 to 6, one side of a base frame 20 of the reinforced cage assembly / building device has an arc-shaped fixed side frame 2 which is outwardly convex and forms, for example, an underground tank.
1 is erected. In the fixed side frame 21,
2nd floor work floor 22a to 5th floor work floor 22d and top work floor 2
2e is provided. A movable side frame 23 having a shape facing the fixed side frame 21 is erected on the base frame 20 so as to be freely movable in the contact and separation directions.
Floor work floor 24a to 5th floor work floor 24d and top work floor 24
e is provided.

The movable side frame 23 is erected on two sets of running frames 25. On both sides of the running frame 25, a pair of front and rear running rollers 26 and hook rollers 27 sandwiching the base frame running guide portion 20a. It is guided by the travel guide portion 20a and is moved within a movable range S (for example, 1000 mm) by a travel drive cylinder 28 interposed between the travel guide portion 20a and the base frame 20. An interval adjusting means is configured.

As shown in FIG. 8, one end of a suspension beam girder 29 is fixedly provided on both sides of the top of the fixed side frame 21, and the other end of the suspension beam girder 29 is provided with a roller 29a.
Both sides of the top portion of the movable side frame 23 are movably guided via.

As shown in FIG. 17, the pair of suspension beam receiving beams 29 support an outer mesh reinforcement beam 30 and an inner mesh reinforcement beam 31, and both beams 30, 31 are supported.
Are connected by a pair of suspension beam connection girders 32.

Next, the manner of assembling and installing the reinforcing bar will be described with reference to FIGS.

(1) External Reinforcement Hanging Step (FIG. 7) The traveling drive cylinders 28, 28 are operated to move the movable side frame 23, and the reinforcement is inserted between the movable side frame 23 and the fixed side frame 21. An interval D of, for example, 800 mm, which is easy and slightly (for example, 400 mm) smaller than the length of the stirrup streak 7, which will be described later, is provided. Therefore, the outer net reinforcement 4 is connected to both frames 2 by the outer net reinforcement beam 30 and the outer net reinforcement ropes 30a, 30a.
Hang between 1 and 23.

(2) Outer net reinforcement setting step (FIG. 8) Both ends of the outer net reinforcement beam 30 are supported by the suspension beam receiving beams 29, 29, and the outer net reinforcement 4 is set at a predetermined position.

(3) Inner Reinforcement Hanging Step (FIG. 9) The inner reinforcement 5 is formed by the inner reinforcement suspension beam 31 and the inner reinforcement suspension ropes 31a, 31a. Hang it between.

(4) Inner Reinforcement Setting Step (FIG. 10) The both ends of the inner reinforcement hanging beam 31 are supported by the suspension beam receiving beams 29, 29, and the inner reinforcement 5 is set at a predetermined position.

(5) Stirrup streaks setting step (FIG. 1)
1 to 13) On the working floors 24a to 24d, the worker M removes the stirrup streaks 7 temporarily placed on the floor from the inner stoma 5 side to the outer stoma 4
Side, and the end 7a on the near side is connected to the circumferential muscle 3
Unite. At this time, the other side of the stirrup streak 7 is placed on the circumferential streak 3 of the outer reticulum 4, and a gap D1 (for example, 400 mm) is provided between the end 7b and the circumferential streak 3. Is formed.

(6) Step of Expanding between Reticulated Bars (FIGS. 14 to 16) The traveling drive cylinders 28, 28 are contracted, and the movable side frame 23 is moved to the difference between the distance D and the distance D1 (for example, 400 mm).
Only the space between the fixed side frame 21 and the end portion 7b of the stirrup 7 is hooked on the circumferential muscle 3 of the outer mesh wire 4 and bound. At the beginning of this step, the bottom portions a and b of the outer and inner reticulated muscles 4 and 5 are attached to both frames 21 and 2 respectively.
3

(7) Reinforced basket hanging process (FIG. 17 and FIG. 1)
8) The outer rebar suspension beam 30 and the inner rebar suspension beam 31 are connected by a pair of suspension beam connection beams 32, and the reinforcing bar cage 33 is suspended and moved via these suspension beam connection beams 32, 32. To set it in place.

[0041]

Since the present invention is configured as described above, it has the following effects.

It is possible to assemble the squirrel cage in an upright position so that it is not necessary to erect it, to omit the reinforcing frame and lattice bars necessary for retaining the shape at the time of conventional erecting, and to reduce waste of materials. it can.

In addition, the stirrup streak, which is particularly difficult to work, can be easily mounted by extending the distance between the two reticulation bars, and all the assembly work is performed on the work floor outside the two reticulation bars. Thus, workability can be improved and safety can be improved.

[Brief description of the drawings]

FIG. 1 is a side view showing one embodiment of the present invention.

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a perspective view showing an interval adjusting unit.

FIG. 5 is a top view of FIG. 4;

FIG. 6 is a partial detailed view of FIG. 4;

FIG. 7 is a perspective view illustrating a step of suspending the outer net reinforcement.

FIG. 8 is a perspective view illustrating an outer reticulum setting step.

FIG. 9 is a perspective view illustrating a step of suspending the inner reticulation.

FIG. 10 is a perspective view illustrating an inner reticulum setting step.

FIG. 11 is a perspective view illustrating a stirrup stitch setting step.

FIG. 12 is a side view of FIG. 11;

FIG. 13 is a side view showing a state where one end of the stirrup stitch is bound.

FIG. 14 is a perspective view illustrating an interstitial muscle expanding step.

FIG. 15 is a side view of FIG. 14;

FIG. 16 is a side view showing a state in which both ends of the stirrup are bound.

FIG. 17 is a perspective view showing a state in which the outer net reinforcement beam and the inner net reinforcement beam are connected by a suspension beam connecting girder.

FIG. 18 is a perspective view illustrating a reinforcing cage hanging step.

FIG. 19 is a perspective view for explaining an outer reinforcement and an inner reinforcement assembling step of the conventional prefabrication method.

FIG. 20 is a perspective view showing the outer and inner reticulated muscles produced in FIG. 19;

FIG. 21 is a perspective view illustrating an inner reticulum setting step.

FIG. 22 is a side view of FIG. 21;

FIG. 23 is a perspective view for explaining an outer net reinforcement setting step.

FIG. 24 is a side view of FIG. 23.

FIG. 25 is a side view showing an example of the stirrup streaks.

FIG. 26 is a side view showing another example of the stirrup streaks.

FIG. 27 is a perspective view showing another example of the stirrup streaks.

FIG. 28 is a side view illustrating a reinforcing cage assembly process.

FIG. 29 is a perspective view illustrating a reinforcing cage temporary placement step.

FIG. 30 is a perspective view illustrating a rebar cage moving step.

FIG. 31 is a side view for explaining a reinforcing cage building process.

FIG. 32 is a side view showing a state in which the reinforcing cage is erected.

FIG. 33 is a side view for explaining the reinforcing cage building process.

FIG. 34 is a side view illustrating a reinforcing cage fixing step.

FIG. 35 is a side view illustrating one embodiment of a circumferential muscle distribution member.

FIG. 36 is a side view illustrating another embodiment of the circumferential muscle distribution member.

FIG. 37 is a side view for explaining a circumferential streak attaching step.

FIG. 38 is a side view illustrating a stirrup streak attaching process.

FIG. 39 is a perspective view showing a stirrup mounting mode.

[Explanation of symbols]

 A: Segment B: Formwork frame C: Existing rod concrete D, D1: Spacing between both side frames L: Overlapping part M: Worker S: Movable range 1, 1A ... rebar assembly base 2, 2a ... vertical bar 3 ... circumferential bar 4 ... outer net bar 5 ... inner web bar 6 ... reinforcement frame 7, 7A, 7B ... Stirrup streaks 7a, 7b: End of stirrup streaks 8: Reinforcing bar 9, 9a: Spacer 10: Crawler crane 11: Main winding hook 12: Suspension jig 13. ..Hanging wire ropes 14 ... Hook-up hooks 15 ... Lattice streaks 20 ... Base frame 20a ... Base frame running guide 21 ... Fixed side frames 22a-22d, 24a-24d ... Work floor 23 ・ ・ ・ Movable side frame 25 ・..Running frame 26 ... Running roller 27 ... Hook roller 28 ... Running drive cylinder 29 ... Suspension beam receiving beam 29a ... Roller 30 ... Outer net suspension beam 31 ... Inner Reinforcing beam suspension beam 32 ... suspension beam connecting girder 33 ... steel cage

Claims (1)

(57) [Claims] 1. A fixed side frame which is erected on a base frame and has a shape corresponding to the shape of an outer netting, and a movable side portion which is provided on the base frame so as to run freely and has a shape corresponding to the shape of an inner netting. A frame, an interval adjusting means for adjusting an interval of the movable side frame with respect to the fixed side frame, a suspension beam receiving beam for connecting the tops of the both side frames so as to be adjustable in distance, and supported by the suspension beam receiving beam. And an outer net reinforcement and an inner net reinforcement suspended respectively for suspending the outer reinforcement and the inner reinforcement, and a suspension beam connecting girder connecting the both suspension beams.・ Building equipment.