JP2022122243A - Assembly method for cage and assembly device - Google Patents

Abstract

To improve workability of assembly of a pre-assembling cage to improve a quality of the assembled pre-assembling cage.SOLUTION: An assembly device 1 that pre-assembles a cage C having a main reinforcement 10 and a shear reinforcement 20 comprises a reinforcement arrangement rack 30 where the shear reinforcements 20 are arranged in parallel, and a plurality of first frames 40 arranged along the reinforcement arrangement rack 30 and across which top edge main reinforcements 11 are bridged and placed. The reinforcement arrangement rack 30 has a plurality of engaging grooves 32a and 36a that are formed with a prescribed interval, and these engaging grooves hold the shear reinforcements 20 attachably/detachably in an erected state. The first frame 40 has a column part 41 arranged proximately on the reinforcement arrangement rack 30 and a main reinforcement placing part 42 liftably supported by the column part 41, extending to a direction intersecting the reinforcement arrangement rack 30, and on which the top edge main reinforcement 11 is placed. The main reinforcement placing part 42 places the top edge main reinforcement 11 inserted into the shear reinforcement 20 held by the engaging groove of the reinforcement arrangement rack 30 and can lift it up to the inside of an upper lib 20a of the shear reinforcement 20.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to an assembling method and an assembling apparatus for pre-assembling reinforced cages such as columns and beams of reinforced concrete structures.

In the construction method of reinforced concrete structures, the so-called pre-assembly method, in which reinforcing bar cages such as columns and beams are assembled on the ground in advance, is used to shorten the construction period and stabilize the quality of the reinforcing bar cages.

Patent Literature 1 listed below discloses an assembling apparatus and an assembling method of a cage with pre-assembled reinforcing bars of beams.
The pre-assembled reinforcing bar cage has a plurality of main bars extending parallel to each other and a plurality of frame-shaped stirrups (shear reinforcing bars) surrounding these main bars. The plurality of main rebars are composed of upper main rebars arranged above the stirrups and lower main rebars arranged below the stirrups.

The assembling apparatus of Patent Document 1 includes three pedestals that are arranged in a straight line with an interval therebetween. These pedestals consist of pedestals at one end, intermediate part and other end. Each pedestal has a beam provided at its upper end to support the upper end main reinforcement, and a vertically movable upper end main reinforcement and a lower end main reinforcement for horizontal movement. It has a roller that assists the The intermediate cradle also has a liftable stirrup cradle.

In the method of assembling a pre-assembled reinforced cage using the assembling apparatus of Patent Document 1, first, the stirrup holders of the intermediate frame are set at a predetermined height, and the stiffeners bundled upright are held there. Also, the rollers of each pedestal are set at the top above the beam. Subsequently, while moving the top main reinforcement horizontally from the rollers of the pedestal on the one end side to the rollers of the pedestal on the middle part and the other end side, it is inserted into the bundle of stirrups held by the stirrup holder.

Next, the rollers that support the upper end main reinforcement on all the frames are lowered to the middle stage position. Thereby, the upper end main reinforcement is supported by the beam of each frame. Then lower the stirrup cradle and hang the stirrups onto the top main bar. Next, while moving the lower end main reinforcement horizontally from the rollers of the one end side frame lowered to the middle position to the rollers of the middle part and the other end side frame at the same middle position, a bundle suspended from the top end main reinforcement inserted into the ribs of the

Next, the bundled ribs are arranged at predetermined positions in the longitudinal direction of the top main reinforcement. Subsequently, all the rollers supporting the bottom main reinforcement are lowered to the lowest position, thereby placing the bottom main reinforcement on the bottom of the stirrups. After that, the pre-assembled reinforcing bar cage is assembled by tying the stirrups to the top and bottom main bars.

JP-A-04-203165

In the apparatus and method for assembling a pre-assembled reinforced cage of Patent Literature 1, each of the bundled stirrups suspended from the top main reinforcing bar must be arranged at a predetermined position in the longitudinal direction of the top main reinforcing bar. Workability of placement was poor. Not only that, but the ribs could be inaccurately spaced on the top main muscle. For this reason, the placement positions of the ribs are marked on the top main reinforcement, but this marking requires labor and time.

In addition, the rollers of each frame were set at the top when inserting the top main reinforcement into the ribs, and set at the middle position when inserting the bottom main reinforcement. That is, the main reinforcement must be inserted into the ribs from different height positions depending on the type of the ribs, and the workability of inserting the ribs into the ribs was poor.
Furthermore, if upper and lower double-deep muscles are provided in addition to the upper and lower main reinforcements within the ribs, when these double-deep muscles are tied to the stirrups, a plurality of braces are used to hold the double-deep muscles. The workability of the main rebar arrangement was poor because it required manpower.

The present invention has been made to solve at least one of the above problems, and a method for assembling a reinforced cage according to one aspect of the present invention comprises:
A method for assembling a reinforcing bar cage having a plurality of main bars having portions extending parallel to each other and a plurality of frame-like shear reinforcing bars surrounding the main bars, comprising:
an aligning step of arranging the shear reinforcing bars in an upright state at predetermined intervals;
an inserting step of inserting the plurality of main reinforcing bars through the shear reinforcing bars arranged side by side;
A reinforcing bar arranging step in which a plurality of pedestals, which may be vertically movable, on which the inserted main reinforcement is placed in a bridged state and the shear reinforcement are moved relative to each other in the vertical direction, and the main reinforcement is arranged at a predetermined position within the shear reinforcement. When,
characterized by comprising

According to the above configuration, by inserting the main reinforcing bars through the positioned shear reinforcing bars and arranging them at predetermined positions, it is possible to assemble a reinforcing bar cage with accurate intervals between the shear reinforcing bars. It is not necessary to line up the shear reinforcing bars hanging from the main bars during assembly, and the workability of assembling the reinforcing bar cage can be improved. In addition, it is not necessary to mark the arrangement position of the shear reinforcing bar on the main bar, so that the labor and time required for assembly can be reduced.

Preferably, the plurality of main reinforcements include a plurality of first main reinforcements arranged inside the upper side of the shear reinforcements arranged at predetermined intervals in an upright state, and the shear reinforcements other than the inside of the upper side. a plurality of second main reinforcements disposed within the reinforcing bars, the plurality of frames including a liftable first platform for disposing the first main reinforcements;
In the reinforcement arrangement step, after the first main reinforcement is lifted by raising the first frame and arranged inside the upper side portion, the second main reinforcement is arranged in the shear reinforcing bars other than the inside of the upper side portion. including setting up
According to the above configuration, since the first main reinforcement can be brought close to the inner side of the upper side of the shear reinforcement by the first frame from below, the first main reinforcement can be easily arranged, and the first main reinforcement and the shear reinforcement can be easily tied together. Become.

Preferably, the plurality of main reinforcements include a plurality of first main reinforcements arranged inside the upper side of the shear reinforcements arranged at predetermined intervals in an upright state, and the shear reinforcements other than the inside of the upper side. a plurality of second main bars disposed within the reinforcing bars, the plurality of cradles including a first cradle for disposing the first main bars;
In the alignment process, the shear reinforcing bars are placed side by side on a bar arrangement rack that can be raised and lowered,
The reinforcement arrangement step includes arranging the main reinforcements placed on the pedestal in the shear reinforcing bars arranged side by side on the reinforcement rack by raising and lowering the reinforcement rack.
According to the above configuration, since the reinforcement rack in which the shear reinforcing bars are arranged is moved up and down, it is possible to arrange the main reinforcing bars in the shear reinforcing bars at a constant height position.

Preferably, the plurality of cradles includes a second cradle for disposing the second main reinforcement,
The reinforcement arrangement step includes disposing the second main reinforcement placed on the second frame by relatively moving the second frame and the shear reinforcement in the vertical direction in the shear reinforcement.
According to the above configuration, the second main reinforcement can be held by the second frame, and the second main reinforcement can be held at the arrangement position within the shear reinforcement by the relative movement between the second frame and the shear reinforcement. Therefore, even the second main reinforcements including the upper double-deep reinforcement and the lower double-deep reinforcement can be held without human intervention.

Preferably, the reinforcing bar arrangement step includes suspending the shear reinforcing bar from the first main bar placed on the first frame and arranged inside the upper side of the shear reinforcing bar from above and below the second frame. disposing the second main reinforcement on the second cradle within the shear reinforcement by relative movement in a direction.
According to the above configuration, the first main reinforcement is lifted by the first frame or the reinforcement rack is lowered to suspend the shear reinforcement, thereby placing the second main reinforcement in the shear reinforcement whose lower part is open. Therefore, the workability of arranging the second main reinforcing bars is good.

Preferably, the inserting step includes inserting the plurality of main reinforcements from the same height position into the shear reinforcements arranged side by side.
According to the above configuration, it is possible to improve the workability of inserting the main reinforcement into the shear reinforcement.

Preferably, the reinforcing bar cage has a step in the middle part in the longitudinal direction, the plurality of main bars include bent main bars bent in the middle part in the longitudinal direction in a crank shape, and the plurality of shear reinforcing bars are provided. The muscles are formed with different sizes depending on the longitudinal portion of the reinforcing bar cage,
The aligning step includes arranging the shear reinforcing bars of a first size in a first region in the alignment direction, and arranging the shear reinforcing bars of a second size in a second region adjacent to the first region. including arranging
The inserting step includes inserting the bending main reinforcement through the shear reinforcements of different sizes arranged side by side,
The plurality of pedestals on which the inserted bent main reinforcements are placed can have different mounting height positions corresponding to the shapes of the bent main reinforcements.
According to the above configuration, by changing the mounting height position of the pedestal according to the shape of the bent reinforced bars inserted into the shear reinforcing bars placed side by side, the bent reinforced bars are placed on the pedestal. It is possible to assemble a reinforced cage having steps in a stable state.

A reinforced cage assembling apparatus according to another aspect of the present invention is an apparatus for assembling a reinforced cage having a plurality of main bars having portions extending parallel to each other and a plurality of frame-shaped shear reinforcing bars surrounding the main bars. , the plurality of main rebars include a plurality of first main rebars arranged inside the upper side of the upright shear reinforcing bar, and a plurality of main rebars arranged inside the shear reinforcing bar other than the inside of the upper side and a second main bar,
a reinforcing bar rack provided to extend linearly and having the plurality of shear reinforcing bars arranged in an upright state at predetermined intervals;
a plurality of pedestals provided along the bar arrangement rack and capable of mounting the main bars inserted into the shear reinforcing bars arranged side by side on the bar arrangement rack in a bridging state;
The plurality of pedestals may include a first pedestal for arranging the first main reinforcing bars, each pedestal extending in a direction intersecting with the extending direction of the reinforcing bar rack and capable of lifting and lowering the main bars on which the main bars are placed. has a part
The main-reinforcement holding part of the first frame is characterized in that the first main-reinforcement is placed on the main-reinforcement holding part and can be lifted up to at least the inside of the upper side part of the shear reinforcement.
According to the above configuration, the first main reinforcement inserted through the shear reinforcements arranged side by side on the reinforcement rack is lifted up to the inside of the upper side of the shear reinforcement by the main reinforcement holding portion of the first frame. can be easily arranged and the workability of assembling the reinforcing bar cage can be improved. The shear bars are positioned and the rebar cage is assembled with the correct spacing of the shear bars.

A reinforced cage assembling apparatus according to still another aspect of the present invention is an apparatus for assembling a reinforced cage having a plurality of main bars having portions extending parallel to each other and a plurality of frame-shaped shear reinforcing bars surrounding the main bars. The plurality of main rebars includes a plurality of first main rebars arranged inside the upper side of the upright shear reinforcing bar, and a plurality of main rebars arranged inside the shear reinforcing bar other than the inside of the upper side. and a second main bar of
a reinforcing bar rack provided to extend linearly and having the plurality of shear reinforcing bars arranged in an upright state at predetermined intervals;
a plurality of pedestals provided along the bar arrangement rack and capable of mounting the main bars inserted into the shear reinforcing bars arranged side by side on the bar arrangement rack in a bridging state;
The plurality of pedestals may include a first pedestal for arranging the first main reinforcing bars, each pedestal extending in a direction intersecting with the extending direction of the reinforcing bar rack and capable of lifting and lowering the main bars on which the main bars are placed. has a part
The reinforcement rack can be raised and lowered so that the height position of the main reinforcement placed on the main reinforcement holding portion of the frame is aligned with the height position of the main reinforcement of the shear reinforcement placed side by side on the reinforcement rack. It is characterized by
According to the above configuration, each main reinforcement placed on the main reinforcement holding portion of the frame can be arranged in the shear reinforcement by moving up and down the reinforcement rack on which the shear reinforcement is arranged. As a result, the main reinforcing bars can be placed in the shear reinforcing bars at a constant height.

Preferably, the plurality of cradles includes a second cradle for disposing the second main reinforcement,
The main reinforcing bar holding portion of the second frame and the shear reinforcing bar are relatively movable in the vertical direction.
According to the above configuration, the second main reinforcing bar can be held by the main reinforcing bar holding portion of the second frame that can move relative to the shear reinforcing bar in the vertical direction, and can be arranged in the shear reinforcing bar. It is possible to improve the workability of assembling the reinforcing bar cage. It can also handle the second main reinforcement including the upper double-deep and lower double-deep.

Preferably, the main-bar holding part of the first frame on which the first main bar is placed inside the upper side of the shear reinforcing bar and the bar arrangement rack on which the shear reinforcing bars are arranged are arranged vertically. By relatively moving, the shear reinforcing bar hangs from the first main bar and can be removed from the bar arrangement rack.
According to the above configuration, the second main reinforcement on the second frame is arranged in the shear reinforcement that hangs from the first main reinforcement on the main reinforcement holding portion of the first frame and moves away from the reinforcement rack. The second main reinforcing bar can be easily arranged in the shear reinforcing bar that has been removed from the bar arrangement rack and has its lower part opened.

Preferably, it is provided above the reinforcement rack, extends in a direction intersecting with the extension direction of the reinforcement rack, is rotatable about an axis, and is arranged in the shear reinforcing bar arranged side by side on the reinforcement rack. A main-rebar feed roller is provided on which the main-rebar to be inserted is placed.
According to the above configuration, when the main reinforcement is inserted through the shear reinforcing bars arranged side by side on the reinforcement rack, the movement of the main reinforcement in the extending direction of the reinforcement rack is assisted by the main reinforcement feed rollers, so the labor for feeding the main reinforcement is reduced. can be omitted. In addition, the main-rebar feed rollers can avoid interference between the bar arrangement racks and the shear reinforcement and the main rebars. Since the first main reinforcement and the second main reinforcement are inserted into the shear reinforcement at the height position of the main reinforcement feed roller, that is, at the same height position, the workability of inserting the main reinforcement into the shear reinforcement can be improved. can.

Preferably, the reinforcing bar cage has a step in the middle part in the longitudinal direction, and the plurality of main bars include bent main bars bent in a crank shape in the middle part in the longitudinal direction, and The plurality of shear reinforcing bars arranged side by side are shear reinforcing bars of a first size placed in a first region of the bar rack and a second size shear reinforcing bar placed in a second region adjacent to the first region. and shear reinforcement bars of
The main-reinforcement holding portions of the plurality of frames can have different mounting height positions corresponding to the shape of the bent main-reinforcement.
According to the above configuration, the bent main-reinforcement is placed in a stable state on the main-reinforcement holding portion having different mounting height positions corresponding to the shape of the bent main-reinforcement. This facilitates the assembly of a reinforced cage having steps.

ADVANTAGE OF THE INVENTION According to this invention, the workability|operativity of an assembly of a reinforcing bar cage|basket can be improved, and the quality of the assembled reinforcing bar cage|basket can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the assembly apparatus of the reinforcing bar cage|basket which concerns on 1st Embodiment of this invention, Comprising: (A) is a top view, (B) is a front view. It is an enlarged plan view of the assembly apparatus. (A) It is an enlarged front view of the assembly apparatus. (B) is an enlarged view of circle portion B in FIG. 3(A). (C) is an enlarged view of circle portion C in FIG. 3(A). (A) It is an enlarged side view of the assembly apparatus. (B) is an enlarged view of circle portion B in FIG. 4(A). 5A is a schematic diagram showing the assembly process of the reinforcing bar cage using the same assembly apparatus, where (A) is a front view of a state in which all the main-bar holding parts are positioned at the bottom, and (B) is a diagram of FIG. B arrow view, (C) is a front view of a state in which shear reinforcing bars are arranged side by side on a reinforcement rack, and (D) is a D arrow view of FIG. 5(C). 6A is a schematic diagram showing the assembly process, in which (A) is a front view of a state in which the first main reinforcement is inserted into the shear reinforcement, (B) is a view from the arrow B in FIG. 6 (A), (C) is a front view of the state in which the first main reinforcement (upper end main reinforcement) is arranged inside the upper side of the shear reinforcement by raising the main reinforcement holding part of the first frame, (D) is a view from the arrow D in FIG. 6 (C) be. 7A is a schematic diagram showing the assembly process, in which (A) is a front view of a state in which the second main reinforcement is inserted into the shear reinforcement, (B) is a view from the arrow B in FIG. 7 (A), (C) is a view in the direction of arrow C in FIG. 7(A). 8A is a schematic diagram showing the assembly process, in which (A) is a front view of a state in which the second main reinforcement is moved to the vicinity of the first main reinforcement by raising the main reinforcement holding portion of the second frame, and (B) is FIG. ), and (C) is a C arrow view of FIG. 8(A). FIG. 9A is a schematic diagram showing the same assembly process, in which (A) is a front view of the state in which the main reinforcement holding part of the first frame is further raised to suspend the shear reinforcement, and (B) is an arrow B in FIG. 9 (A). A view, (C) is a C arrow view of FIG. 9 (A). 10(A) is a schematic diagram showing the same assembly process, (A) is a front view of the state in the middle of lowering the main-bar holding part of the second frame, (B) is a view from the arrow B in FIG. 10(A), and (C) is a It is a C arrow directional view of FIG. 10(A). Schematic diagrams showing the same assembly process, (A) is a front view of the state in which the main reinforcement holding part of the second frame is lowered to the bottom, (B) is a view from the arrow B in FIG. 11 (A), ( C) is a C arrow directional view of FIG. 11(A). FIG. 10 is a view explaining the reinforcement arrangement process of the second main reinforcement (upper double-deck reinforcement) in the same assembly process as viewed from the longitudinal direction of the reinforcing bar cage, and (A) is a U-shaped jig hooked on the first main reinforcement; State, (B) shows the state in which the upper double-deep reinforcement is positioned by the rising U-shaped jig, and (C) shows the state in which the U-shaped jig has finished rising. FIG. 10A is a view explaining the reinforcement arrangement process of the second main reinforcement (lower double-deck reinforcement) in the same assembly process as viewed from the longitudinal direction of the reinforcement cage, and FIG. (B) is the state in which the lower double-deck reinforcement is positioned by the U-shaped jig due to the lowering of the main-rebar holding part of the second pedestal; (C) is the main-rebar holding part of the second pedestal 2 shows a state in which the second main reinforcement (lower end main reinforcement) is placed inside the lower side of the shear reinforcement by the descent of . Fig. 10 is a schematic front view showing a reinforcing-bar cage assembling apparatus according to a second embodiment of the present invention; (A) to (E) are views for explaining the assembling process of the reinforcing bar cage according to the same embodiment, and are views of the reinforcing bar cage viewed from the longitudinal direction. (A) to (E) are views for explaining the assembling process of the reinforcing bar cage according to the third embodiment of the present invention, and are views of the reinforcing bar cage as seen from the longitudinal direction. FIG. 11 is a schematic front view showing a reinforcing-bar cage assembling apparatus according to a fourth embodiment of the present invention; (A) to (D) are views for explaining the assembling process of the reinforcing bar cage according to the embodiment, and are views of the reinforcing bar cage as seen from the longitudinal direction. (A) to (D) are diagrams for explaining the assembling process of the reinforcing-bar cage according to the fifth embodiment of the present invention, and are views of the reinforcing-bar cage viewed from the longitudinal direction. FIG. 11 is a schematic front view showing a reinforcing-bar cage assembling apparatus according to a sixth embodiment of the present invention; (A) to (E) are views for explaining the assembling process of the reinforcing bar cage according to the same embodiment, and are views of the reinforcing bar cage viewed from the longitudinal direction. (A) to (C) are diagrams for explaining the assembling process of the reinforcing-bar cage according to the seventh embodiment of the present invention, and are views of the reinforcing-bar cage as seen from the front. (A) to (C) are views for explaining the same assembly process, and are views of the reinforcing bar cage as seen from the front. (A) and (B) are diagrams for explaining the assembly process of the reinforcing-bar cage according to the eighth embodiment of the present invention, and are views of the reinforcing-bar cage as seen from the front. (A) to (D) are diagrams for explaining the assembling process of the reinforcing-bar cage according to the ninth embodiment of the present invention, and are views of the reinforcing-bar cage as seen from the front. (A) to (C) are views for explaining the same assembly process, and are views of the reinforcing bar cage as seen from the front. It is a figure explaining the assembly process of the reinforcing bar cage|basket which concerns on 10th Embodiment of this invention, Comprising: It is the figure which looked at the reinforcing cage from the front.

<First embodiment>
A first embodiment of the present invention will be described with reference to the drawings. This embodiment applies the present invention to an assembling apparatus and an assembling method for pre-assembling a reinforcing bar cage of a beam in a concrete structure. In the following, the reinforcing bar cage, the assembling device, its peripheral structure, and the assembling method will be described in this order.

[Rebar basket]
As shown in FIG. 11, the reinforcing bar cage Cg of the beam assembled by the assembling apparatus 1A has a plurality of main bars 10 extending parallel to each other and a plurality of shear reinforcing bars 20 surrounding the main bars 10. As shown in FIG. The shear reinforcing bars 20 are formed in a frame-like quadrilateral and have an upper side portion 20a, left and right side portions 20b and 20c, and a lower side portion 20d.

The main reinforcement 10 includes an upper end main reinforcement 11, an upper double-deep reinforcement 12, a lower end main reinforcement 13, and a lower double-deep reinforcement 14, each of which is bound to a shear reinforcement 20 by a metal wire or the like.
A plurality (five in FIG. 11) of the top main reinforcements 11 are arranged inside the upper side portion 20a of the shear reinforcement 20 at equal intervals. The upper double-tiered reinforcement 12 is arranged along the inner sides of the left and right side portions 20b and 20c of the shear reinforcement 20 at a predetermined distance downward from the upper end main reinforcement 11 .

A plurality (five in FIG. 11) of the lower end main reinforcing bars 13 are arranged inside the lower side portion 20d of the shear reinforcing bar 20 at equal intervals. The lower double-tiered reinforcement 14 is arranged along the inner sides of the side portions 20b and 20c of the shear reinforcement 20 at a predetermined distance above the bottom main reinforcement 13 .
In this description, the upper end main reinforcement 11, which is the main reinforcement provided inside the upper side portion 20a of the shear reinforcing bar 20, is defined as the first main bar, and the main bars provided within the shear reinforcing bar 20 other than the inner side of the upper side portion 20a. The upper double-deep reinforcement 12, the lower end main reinforcement 13, and the lower double-deep reinforcement 14 are defined as second main reinforcements.

[Assembly equipment]
As shown in FIG. 1, an assembling apparatus 1A for assembling the above-mentioned reinforcing-bar cage Cg includes a bar-arranged rack 30, a plurality of main frames 40 (first frame), a plurality of sub-mounts 50 (second frames), and a main-bar feed table 60 . Around the assembling apparatus 1A, a scaffolding 2, a main-reinforcement supply table 3, and a stopper stand 4 are provided as peripheral structures.

(reinforcement rack)
The reinforcing bar rack 30 is for arranging the shear reinforcing bars 20 in an upright state at predetermined intervals in the process of assembling the reinforcing bar cage Cg. It has a lower side support portion 31 that supports the lower side portion 20 d and side side support portions 35 that support the side portions 20 b and 20 c of the shear reinforcement 20 .

As shown in FIG. 4B, the lower side support portion 31 includes a pair of lower side support members 32, 32 made of a steel material having an L-shaped cross section extending in the longitudinal direction of the reinforcing bar cage Cg and parallel to each other. It has a plurality of horizontal bases 33 that support the support member 32 from below and extend in the cross direction.

The lower support members 32, 32 have their corners facing outward and upward. As shown in FIG. 3, the vertical wall of each lower side support member 32 is formed with an engaging groove 32a (holding portion) for receiving the lower side portion 20d of the shear reinforcing bar 20. A plurality of them are arranged at predetermined intervals. Each engagement groove 32a is formed at the same position in the longitudinal direction in the adjacent lower side support members 32, 32. As shown in FIG.

The horizontal bases 33 are arranged at intervals in the longitudinal direction of the lower side support member 32, and both ends of each horizontal base 33 extend in the width direction of the lower side support members 32, 32 as shown in FIG. 4B. are supported by a pair of small struts 34, 34 facing each other. The horizontal base 33 is height-adjustable by height adjusting means 34a provided between the end of the horizontal base 33 and the small support 34, so that the lower side support members 32, 32 are height-adjustable. is.

A pair of small struts 34, 34 shown in FIG. 4(B) and another pair of small struts 34, 34 provided adjacent to the lower side support member 32 in the longitudinal direction thereof as shown in FIG. 3(A). That is, two pairs of small struts 34, 34 adjacent in the longitudinal direction of the assembling apparatus 1A constitute a small strut unit 34U. As shown in FIGS. 2 and 3, a plurality of small support units 34U, nine in this embodiment, are provided at equal intervals in the longitudinal direction of the lower side support member 32. As shown in FIGS.

As shown in FIG. 4B, the side support portion 35 includes a pair of side support members 36, 36 made of steel having an L-shaped cross section extending in the longitudinal direction of the assembly apparatus 1A and parallel to each other; It has a plurality of pillars 37 that support the side support members 36 and extend vertically.

A pair of side support members 36, 36 facing each other have their corners facing inward. Upper ends of pillars 37, 37 are fixed to the vertical walls of the side support members 36, 36, respectively. Engagement grooves 36a (holding portions) for receiving the side portions 20b and 20c of the shear reinforcement 20 are formed, and a plurality of engagement grooves 36a (holding portions) are arranged at predetermined intervals in the longitudinal direction of the side support member 36. As shown in FIG. The longitudinal arrangement position of each engaging groove 36a coincides with the longitudinal position of the engaging groove 32a of the lower side support member 32. As shown in FIG.

As shown in FIG. 3, each column 37 is spaced apart in the longitudinal direction of each side support member 36, and the length of each column 37, 37 of the pair of side support members 36, 36 The arrangement position of the direction is the same. As shown in FIG. 4B, the lower ends of the pair of pillars 37, 37 located at the same longitudinal position are supported by a base 38 extending perpendicularly to the longitudinal direction of the side support member 36. As shown in FIG. The column portion 37 can be position-adjusted in a direction perpendicular to the longitudinal direction (width direction) of the side support member 36 by means of width adjustment means 38a provided between the lower end portion and the base 38. The support members 36, 36 are positionally adjustable in their width direction.

In the reinforcement rack 30, the side portions 20b and 20c of the shear reinforcing bar 20 are engaged with the engagement grooves 36a and 36a of the side support member 36, respectively, and the lower portion 20d is engaged with the engagement groove 32a of the lower support member 32 from above. It is removably held in an upright position by being received by the body. Moreover, the engaging grooves 32a and 36a can be arbitrarily selected and the shear reinforcing bars 20 can be arranged side by side at predetermined intervals. Furthermore, since the positions of the lower support members 32 and the side support members 36 can be adjusted, the bar rack 30 can accommodate shear reinforcing bars 20 of different sizes, and thus can be used with pre-assembled reinforcing bar cages Cg of different sizes. I can handle it.

(Main frame)
The main pedestal 40 (first pedestal) can place and lift the upper end main reinforcing bars 11 in the process of assembling the reinforcing bar cage Cg. In this embodiment, five are provided. The arrangement position of the main frame 40 in the longitudinal direction of the reinforcement rack 30 corresponds to the odd-numbered small column units 34U.
In this description, a base on which the first main reinforcement is placed in order to dispose the first main reinforcement in the shear reinforcement 20 is referred to as a first frame.

Each main frame 40 has a pair of struts 41, 41, and a main-reinforcement placing portion 42 (main-rebar holding portion) on which the upper-end main reinforcement 11 is placed while being supported by the struts 41,41. The main reinforcement mounting portion 42 is formed of a bar material, and as shown in FIG. 3B, is formed of a square pipe in this embodiment, but may be a square bar, a round pipe, a round bar, or a roller.

As shown in FIGS. 2 and 4(A), the pair of struts 41, 41 are arranged in close proximity to the bar rack 30 and extend in a direction orthogonal to the longitudinal direction of the bar rack 30 with the bar rack 30 therebetween. facing each other. Each column 41 is provided with an elevating unit 43 that can move vertically. The lifting section 43 is driven by converting the rotary motion of a motor 44 arranged near one of the pair of supporting columns 41 , 41 into vertical motion via a transmission mechanism 45 .

The pair of lifting parts 43, 43 can be lifted and lowered at the same height at the same time. As shown in FIG. 3(A), a stop portion 41a is provided at the lower end portion of each post portion 41 to prevent the elevating portion 43 from descending. The lifting section 43 is at the lowest position when it is at the position of the stop section 41a.

As shown in FIG. 3B, each elevating section 43 has mounting section receiving sections 43a formed of rectangular through holes at one end and the other end in the longitudinal direction of the bar rack 30. As shown in FIG. The mounting portion receiving portion 43a may be formed with a U-shaped groove. The mounting portion receiving portion 43a extends in the facing direction of the support portions 41, 41. As shown in FIG. The main reinforcing bar mounting portions 42 are detachably attached to the mounting portion receiving portions 43a, 43a facing each other in the opposite direction. Therefore, the main-reinforcement mounting part 42 is supported by the raising/lowering part 43, and by extension, is supported by the support|pillar part 41 so that raising/lowering is possible. When the main reinforcement placing portion 42 is formed of rollers, both ends thereof are pivotally supported by the placing portion receiving portions 43a, 43a so that the main reinforcement placing portion 42 can rotate. can.
As shown in FIG. 1(B), the top main reinforcements 11 are mounted and held on the main reinforcement mounting portions 42 of the five main frames 40 so as to be bridged in the cross direction.

(sub-frame)
The sub-frame 50 (second frame) is constructed of the main bars 10 other than the top main bar 11 in the process of assembling the reinforced cage Cg. 14 can be placed and lifted. As shown in FIGS. 2 and 3, a plurality of sub-mounts 50 are provided along the reinforcement rack 30, and four in this embodiment. The arrangement positions of the sub-mounts 50 in the longitudinal direction of the reinforcement rack 30 correspond to the even-numbered small strut units 34U, and are between the adjacent main mounts 40,40.
In this description, a stand on which the second main reinforcement is placed in order to dispose the second main reinforcement within the shear reinforcement 20 is referred to as a second frame.

Each sub-frame 50 includes a pair of struts 51, 51, and a main-rebar mounting portion 52 (main-reinforcements holding portion). The main reinforcement mounting portion 52 is formed of a bar material, and as shown in FIG. 3C, is formed of a square bar in this embodiment, but may be a square pipe, a round pipe, a round bar, or a roller.

As shown in FIG. 2 , the pair of struts 51 , 51 are arranged close to the bar rack 30 and face each other in the direction orthogonal to the longitudinal direction of the bar rack 30 with the bar rack 30 interposed therebetween. Each column 51 is provided with an elevating unit 53 that can move vertically. The elevating section 53 is driven by converting the rotary motion of a motor 54 arranged near one of the pair of pillars 51, 51 into vertical motion via a transmission mechanism 55 (see FIG. 4A). .

The pair of elevating units 53, 53 can be elevated at the same height at the same time. As shown in FIGS. 3A and 3C, a stop portion 51a is provided at the lower end of each column portion 51 to prevent the lifting portion 53 from descending. The lifting section 53 is at the lowest position when it is at the position of the stop section 51a.

As shown in FIG. 3C, each lifting section 53 has a mounting section receiving section 53a formed of a U-shaped groove that opens upward at one end and the other end in the longitudinal direction of the bar rack 30. It is The mounting portion receiving portion 53a may be formed with a through hole. The mounting section receiving section 53a extends in the direction in which the support sections 51, 51 face each other. The main reinforcing bar mounting portion 52 is detachably attached to the mounting portion receiving portions 53a, 53a facing each other in the opposite direction. Therefore, the main-reinforcement mounting part 52 is supported by the raising/lowering part 53, and by extension, is supported by the support|pillar part 51 so that raising/lowering is possible. When the main reinforcing bar placing portion 52 is formed of rollers, both ends thereof are pivotally supported by the placing portion receiving portions 53a, 53a so that the main reinforcing bar placing portion 52 can rotate. can.
On the main-reinforcement mounting portions 52 of the four sub-frames 50, the upper double-deep reinforcement 12, the lower end main reinforcement 13, and the lower double-deep-reinforcement 14 are placed and held so as to be bridged in the crossing direction.
A beam member 70 shown in FIG. 1(B) and FIG.

(main rod feed table)
The main-rebar feed table 60 places the main rebars 10 on the rebar rack 30 when the main rebars 10 are inserted into the shear reinforcing rebars 20 held in the engagement grooves 32a and 36a of the rebar racks 30 in the process of assembling the reinforcing bar cage Cg. 30 to assist the movement of the main reinforcement 10 in the longitudinal direction.

The main-bar feed table 60 includes the above-mentioned small strut unit 34U and main-bar feed rollers 61, as shown in FIG. 4(B). The main reinforcement feed roller 61 extends in a direction crossing the longitudinal direction of the reinforcement rack 30, and is provided so as to bridge above each pair of small pillars 34, 34 constituting the small pillar unit 34U. ing. That is, two main reinforcement feed rollers 61 are provided for each small support column unit 34U as shown in FIG. Both ends in the longitudinal direction of each main-bar feed roller 61 are rotatably supported by brackets 34b provided at the upper ends of the small struts 34 shown in FIG. 4(B). One main-rebar feed roller 61 may be provided for each small strut unit 34U, or three or more may be provided.

As shown in FIG. 4B , the main-rebar feed rollers 61 are arranged above the lower side support portion 31 of the bar-arrangement rack 30 . There is no interference with the lower side portion 20d of the shear reinforcing bar 20 held by the bar rack 30 and the lower side support portion 31 of the bar rack 30. - 特許庁
In addition, as shown in FIG. 3A, the main-bar feed roller 61 is located at a position higher than the main-bar placing portion 52 of the sub-frame 50 where the elevating portion 53 is at the lowest position, so that the elevating portion 43 of the main frame 40 Even at the lowermost position, it is located higher than the main reinforcement placing portion 42 . All the main-rebar feed rollers 61 are set at the same height position.

As shown in FIG. 2, in a plan view, the small strut unit 34U and its two main reinforcement feed rollers 61 are positioned between the two main reinforcement placement sections 42 of the main pedestal 40 and between the two main reinforcement placement sections 52 of the sub pedestal 50. placed in between. Therefore, when the main-rebar placement parts 42 and 52 move up and down, they do not interfere with the small strut units 34U of the main-rebar feed base 60 and the main-rebar feed rollers 61 .

[scaffold]
The scaffolding 2 shown in FIG. 1 is used as a work space for workers when arranging the shear reinforcing bars 20 on the reinforcing bar rack 30 in the process of assembling the reinforcing bar cage Cg, and when placing the main bars 10 at predetermined positions in the shear reinforcing bars 20. or when binding the shear reinforcement 20 and the main reinforcement 10.

The scaffolding 2 includes a plate scaffolding 2a provided on the side of the reinforcing rack 30 and a lattice scaffolding 2b provided above the reinforcing rack 30 so as to straddle the plate scaffolding 2a. The shear reinforcing bars 20 are inserted through the gaps of the lattice scaffolding 2b and held by the reinforcing bar rack 30. - 特許庁At this time, the lattice scaffolding 2b can support the left and right side portions 20b and 20c of the shear reinforcing bar 20. can also support this core muscle.

[Main rebar supply stand]
The main reinforcing bar supply table 3 shown in FIG. 1 temporarily stores the main reinforcing bars 10 of the material of the reinforcing bar cage Cg, and sends the main reinforcing bars 10 to the assembling apparatus 1A in the process of assembling the reinforcing bar cage Cg. The main reinforcement supply base 3 is provided near the extension direction of the reinforcement rack 30 . The main-reinforcing supply table 3 has a temporary placement section 3a and a supply section 3d.

The temporary placement section 3a has a pair of frames 3b, 3b extending in the same direction as the reinforcement rack 30. A plurality of rollers 3c are bridged between the frames 3b, 3b and arranged in the longitudinal direction of the frames 3b, 3b. ing. Both ends of each roller 3c are rotatably supported by frames 3b, 3b.

The supply section 3d is provided in parallel with the temporary placement section 3a and has a pair of frames 3e, 3e parallel to the frames 3b, 3b, and the adjacent frames 3b and 3e are fixed. Between the frames 3e, 3e, a plurality of rollers 3f are arranged in the longitudinal direction of the frames 3e, 3e. Both ends of each roller 3f are rotatably supported by frames 3e, 3e.

The supply portion 3d is arranged on an extension line of the reinforcement rack 30 in the extending direction. The supply portion 3d and the temporary placement portion 3a are supported by the leg portions 3g shown in FIG. 1(B), and are set at the same height as the main-bar feed rollers 61 of the assembly apparatus 1A.

In the main-reinforcement supply table 3, the main-reinforcement 10 temporarily placed in the temporary placement section 3a is transferred to the supply section 3d, and sent from the supply section 3d to the assembly apparatus 1A. Since the temporary placement section 3a and the supply section 3d are adjacent to each other at the same height, the main reinforcing bars 10 can be easily transferred. Further, the operation of feeding the main bars 10 from the supply section 3d to the assembling apparatus 1A is assisted by the rollers 3f and the main-bar feeding rollers 61, so workability is good.

[Stopper stand]
The stopper stand 4 shown in FIG. 1 is for positioning the main reinforcing bars 10 sent from the main reinforcing bar supply table 3 to the assembling apparatus 1A in the longitudinal direction of the reinforcing bar cage Cg. The stopper stand 4 is provided in the vicinity of the reinforcing bar rack 30 in the extending direction and on the side opposite to the main reinforcing bar supply base 3 . The plate surface of the stopper stand 4 faces the extending direction of the bar rack 30 . The main reinforcing bars 10 sent from the main reinforcing bar supply table 3 to the assembling apparatus 1A are positioned by coming into contact with the stopper stand 4. As shown in FIG.

[Method of assembling a reinforcing bar cage]
A method of assembling the reinforcing bar cage Cg using the assembling apparatus 1A having the above configuration will be described with reference to FIGS. 5 to 11, four main frames 40 and three sub-frames 50 are shown, and the main reinforcement mounting portions 42 and 52 of the main frames 40 and sub-frames 50 are formed of round pipes. The mounting portion receiving portion 43a of the main frame 40 is formed with a U-shaped groove.
As shown in FIGS. 5A and 5B, the elevating sections 43 and 53 of the main frame 40 and sub-frame 50 are all lowered to their lowest positions before the reinforced cage Cg is assembled.

(Alignment of shear reinforcing bars and insertion of top main bars)
First, as shown in FIGS. 5(C) and 5(D), the shear reinforcing bars 20 are arranged on the bar rack 30 in an upright state at predetermined intervals.
Next, the upper end main reinforcement 11 (first main reinforcement) is sent from the main reinforcement supply table 3 (see FIG. 1) to the assembling apparatus 1A, and inserted into each shear reinforcing reinforcement 20 as shown in FIGS. and move on the main-rebar feed roller 61 to abut on the stopper stand 4 .

(Lifting and placement of top main bars)
Next, as shown in FIGS. 6(C) and 6(D), the main-reinforcement mounting portion 42 of the main frame 40 is raised, and the upper edge of the shear reinforcing bar 20 is lifted while the upper end main reinforcement 11 is placed on the main-rebar mounting portion 42 . Lift up to the inside of the portion 20a. Subsequently, the upper end main reinforcement 11 is arranged at a predetermined position in the width direction of the shear reinforcement 20 and tied to the shear reinforcement 20 .

(Insertion of double bar and bottom main bar)
Next, the upper double-deep reinforcement 12, the lower end main reinforcement 13, and the lower double-deep reinforcement 14 as the second main reinforcements are sent from the main reinforcement supply table 3 to the assembly apparatus 1A, and as shown in FIG. It is made to pass through, moved on the main-rebar feed roller 61 , and brought into contact with the stopper stand 4 .

(Lifting the double bar and bottom main bar)
Next, as shown in FIG. 8, the main-reinforcement placing portion 52 of the sub-mounting frame 50 is raised, and the upper double-bar 12, the lower-end main reinforcing bar 13, and the lower double-bar 14 are placed on the main-bar placing portion 52. Lift up to a position slightly above the height position of the upper double-deck reinforcement 12 in the shear reinforcement 20 . Next, the upper double-tiered reinforcement 12 is laid along the side portions 20b and 20c of the shear reinforcing reinforcement 20 .

(Suspension of shear reinforcing bars)
Next, as shown in FIG. 9, the main reinforcing bar mounting portion 42 of the main frame 40 is further raised, and the shear reinforcing bars 20 are suspended from the upper end main reinforcing bars 11 on the main mounting portion 42, and the shear reinforcing bars 20 are arranged. Remove from muscle rack 30 . This removal releases the lower portion of the shear reinforcing bar 20, so that the bottom main bar 13 and the lower double bar 14 can be easily installed.

(Arrangement of Upper Double Reinforcement Using Jig)
When the shear reinforcing bar 20 is lifted and suspended, the upper double bar 12 can be arranged inside the shear reinforcing bar 20 . As shown in FIG. 12 , a U-shaped jig 5 may be used for positioning the upper double-deep reinforcement 12 . The jig 5 has a connecting portion 5a and arm portions 5b and 5c extending perpendicularly from both ends of the connecting portion 5a.

As shown in FIG. 12(A), before raising the shear reinforcing bar 20, one arm 5b of the jig 5 is hooked on the top main bar 11, and the connecting part 5a is pulled outward (the lateral side of the shear reinforcing bar 20). side). The position of the other arm portion 5c is set at the height position where the upper double-deep reinforcement 12 of the shear reinforcement 20 is arranged. Above the arm portion 5c, the upper double-deck reinforcement 12 is placed on the main reinforcement placement portion 52 of the sub-frame 50 along the side portion 20b of the shear reinforcement 20. As shown in FIG.

As shown in FIG. 12(B), when the shear reinforcing bar 20 is raised, the arrangement position of the upper double bar 12 on the shear reinforcing bar 20 reaches the upper double bar 12 on the main-bar placing portion 52. . At this time, the upper double-deep reinforcement 12 is placed on the arm portion 5c so that the upper double-deep reinforcement 12 can be positioned within the shear reinforcement 20. As shown in FIG. Although the upper double-deck reinforcement 12 is tied to the shear reinforcement 20 after arrangement, it may be tied after the shear reinforcement 20 has been lifted, as shown in FIG. 12(C).

(Arrangement of lower double-deep reinforcement using a jig)
Next, as shown in FIG. 10 , the main reinforcement mounting portion 52 of the sub-frame 50 is lowered to arrange the lower double-deck reinforcement 14 at a predetermined position within the shear reinforcing reinforcement 20 . As shown in FIG. 13, the arrangement of the lower double-deep reinforcement 14 can also be positioned using a U-shaped jig 5 .

As shown in FIG. 13(A), before lowering the main-reinforcement mounting part 52, the lower double-deep reinforcement 14 placed there is made to follow the side parts 20b, 20c of the shear reinforcement 20. As shown in FIG. Also, the arm portion 5c of the jig 5 is constrained to the lower side portion 20d of the shear reinforcing muscle 20, and the connecting portion 5a is directed outward (toward the lateral side portion of the shear reinforcing muscle 20). The position of the arm portion 5b is set at the height position where the lower double-deep reinforcement 14 of the shear reinforcement 20 is arranged. Above the arm portion 5b, the lower double-deep reinforcement 14 is placed on the main reinforcement placement portion 52 along the side portion 20b of the shear reinforcement 20. As shown in FIG.

As shown in FIG. 13(B), when the main-reinforcement resting part 52 is lowered, the lower double-deep reinforcement 14 on the main-rear-rebar resting part 52 moves to the arrangement position of the lower double-deep reinforcement 14 in the shear reinforcement 20. to reach At this time, the lower double-deep reinforcement 14 is placed on the arm portion 5 b so that the lower double-deep reinforcement 14 can be arranged within the shear reinforcement 20 . Although the lower double-deck reinforcement 14 is bound to the shear reinforcement 20 after arrangement, as shown in FIG.

(Arrangement of lower end main bars)
As shown in FIG. 11, when the main-reinforcement mounting portion 52 descends below the lower side portion 20d of the shear reinforcing bar 20, the lower-end main reinforcing bar 13 rests on the lower side portion 20d and is arranged at a predetermined position in the width direction of the lower side portion 20d. , the lower side portion 20d.
Thus, the reinforcing bar cage Cg is assembled. After that, wires from a crane are hooked to the upper end main bars 11 (neither is shown), and the main bar mounting portion 42 of the main frame 40 is removed, so that the reinforcing bar cage Cg can be transported. Depending on the size of the reinforcing bar cage Cg, the hooking of the wires and the removal of the main reinforcement placing portion 42 may be performed at a position where the reinforcing bar cage Cg is lowered.

[Effect of the first embodiment]
According to the above embodiment, since the main reinforcing bars 10 are inserted through the shear reinforcing bars 20 arranged at predetermined intervals in the bar arrangement rack 30 in an upright state, the spacing of the shear reinforcing bars 20 is accurate. A braided bar cage Cg can be assembled. Unlike the conventional technology, it is not necessary to place the shear reinforcing bars hanging from the main bars at each position in the longitudinal direction of the main bars and to mark the positions of the shear reinforcing bars on the top main bars. In assembling the car Cg, workability can be improved, and labor and time required can be reduced.
According to the above-described embodiment, since the top main reinforcement 11 is held by the main-reinforcement mounting portion 5 and lifted to the inside of the upper side portion 20a of the shear reinforcement 20, it is easy to dispose the top main reinforcement 11 inside the top side portion 20a. It is easy to bind the upper end main reinforcement 11 and the shear reinforcing reinforcement 20 .
According to the above embodiment, the upper double-deep reinforcement 12, the lower end main reinforcement 13, and the lower double-deep reinforcement 14 as the second main reinforcements are held and lifted by the main-rebar mounting portion 52 of the second frame, and are placed inside the shear reinforcing reinforcement 20. workability of the second main reinforcement is good. This eliminates the need for manpower to hold the upper and lower double-deep muscles when arranging the upper and lower double-deep muscles as in the prior art.
According to the above embodiment, by suspending the shear reinforcing bar 20, the second main bars (the upper double bar 12, the lower main bar 13, and the lower two main bars) are installed in the shear reinforcing bar 20 in a state where the lower part of the shear reinforcing bar 20 is released. Since the step reinforcement 14) is to be arranged, the workability of arranging the second main reinforcement can be improved.
According to the above-described embodiment, all the main reinforcements 10 are fed from the main-reinforcement supply base 3 to the main-reinforcement feed rollers 61 and inserted into the shear reinforcing reinforcements 20 . That is, since they are inserted from the same height position, the workability of inserting the main reinforcing bars 10 into the shear reinforcing bars 20 can be improved. Since the movement of the main reinforcing bars 10 is assisted by the main reinforcing bar feeding rollers 61, labor for feeding the main reinforcing bars can be saved.

Next, another embodiment of the present invention will be described. In the following embodiment, only the configuration different from the above embodiment will be described, and the same reference numerals will be given to the same components, and the description thereof will be omitted.

<Second embodiment>
14 and 15 show a second embodiment of the invention. In this embodiment, unlike the first embodiment, the main reinforcing bars are placed on the bar rack without hanging the shear reinforcing bars.

In the assembling apparatus 1B of the present embodiment shown in FIG. 14, the main-bar mounting portion 52 (main-bar holding portion) of the sub-frame 50 (second frame) can be moved downward from the lower side support member 32 of the bar-arranged rack 30. A cut 32 b is formed in the lower side support member 32 at a position corresponding to the main reinforcement placing portion 52 . A cut 36b (not shown) is also formed in the side support member 36 not shown in FIG.
Although not shown, in the assembling apparatus 1B, a stop portion 51a is provided below the lower side support member 32 to prevent the elevating portion 53 of the sub-frame 50 from descending.

In the assembling apparatus 1B, the main-rebar feed roller 61 provided in the assembling apparatus 1A of the first embodiment avoids interference with the lower end main-reinforcement 13 and the lower double-bar 14 placed on the main-rebar placing portion 52 that moves downward. not provided for. Also, as shown in FIG. 15, the corners of the lower support members 32, 32 are oriented inward and upward.

A method of assembling the reinforcing bar cage Cg using the assembling apparatus 1B having the above configuration will be described with reference to FIG. 15 showing the assembling process.
After aligning the shear reinforcing bars 20 on the reinforcement rack 30 as shown in FIG. 15(A), the top main bars 11 (first main bars) are inserted through the shear reinforcing bars 20 as shown in FIG. 15(B). It is placed on the main reinforcement placing portions 42 and 52 .

Next, as shown in FIG. 15(C), the upper end main reinforcement 11 is lifted up by the main reinforcement placement section 42 to the inside of the upper side portion 20a of the shear reinforcement 20, and arranged at a predetermined position. As shown in FIG. 15(D), the upper double-deep reinforcement 12, the lower end main reinforcement 13, and the lower double-deep reinforcement 14 (second main reinforcement) are inserted into the shear reinforcement 20 and placed on the main-rebar placing portion 52.

After that, the second main reinforcement including the upper double reinforcement 12 is lifted by the main reinforcement placement part 52 to the arrangement height position of the upper double reinforcement 12 in the shear reinforcement 20, and as shown in FIG. The step bars 12 are arranged on the side portions 20b and 20c of the shear reinforcing bars 20. As shown in FIG.

Subsequently, the main-reinforcement placing portion 52 is lowered, and the lower double-tiered reinforcement 14 is arranged on the side portions 20b and 20c at the height position of the lower double-tiered reinforcement 14 in the shear reinforcement 20 . Further, by lowering the main reinforcing bar placing portion 52 below the lower side portion 20d of the shear reinforcing bar 20, the lower end main reinforcing bar 13 is placed on the lower side portion 20d and arranged at a predetermined position. Thus, the reinforcing bar cage Cg is assembled.

<Third Embodiment>
FIG. 16 shows a third embodiment of the invention. In this embodiment, as in the second embodiment, the main reinforcing bars are placed on the bar rack without hanging the shear reinforcing bars. It is arranged to be held by the main reinforcement mounting portion of the main frame.

In this embodiment, an assembling apparatus 1B (see FIG. 14) is used as in the second embodiment. A method of assembling the reinforcing bar cage Cg of this embodiment using the assembling apparatus 1B will be described with reference to FIG. 16 showing the assembling process.

After aligning the shear reinforcing bars 20 in FIG. 16(A), the upper end main bar 11 (first main bar) and the upper double bar 12 of the second main bar are inserted into the shear reinforcing bar 20 as shown in FIG. 16(B). , on the main-bar placing portion 42 of the main frame 40 and the main-bar placing portion 52 of the sub-frame 50 .

Next, as shown in FIG. 16(C), the top main reinforcement 11 and the upper double-deck reinforcement 12 are lifted by the main reinforcement placing section 42 to the inner side of the upper side 20a of the shear reinforcement 20, and the top main reinforcement 11 is placed at a predetermined position. set up. Subsequently, the main-reinforcement mounting portion 42 is lowered, and the upper double-tiered reinforcement 12 is arranged on the side portions 20b and 20c at the arrangement height position within the shear reinforcement 20, as shown in FIG. 16(D). Therefore, in this embodiment, the main frame 40 functions not only as the first frame but also as the second frame.

Further, as shown in FIG. 16(D), the bottom main reinforcement 13 and the lower double-deep reinforcement 14, ie, the remaining second main reinforcement, are inserted into the shear reinforcement 20 and placed on the main reinforcement placement portion 52. As shown in FIG. After that, as shown in FIG. 16(E) , the main reinforcement placement part 52 is lowered, and the lower double-deep reinforcement 14 is placed in the side part 20b at the height position where the lower double-deep reinforcement 14 is arranged in the shear reinforcing reinforcement 20. , 20c. Further, by lowering the main reinforcing bar placing portion 52 below the lower side portion 20d of the shear reinforcing bar 20, the lower end main reinforcing bar 13 is placed on the lower side portion 20d and arranged at a predetermined position.

<Fourth Embodiment>
17 and 18 show a fourth embodiment of the invention. In this embodiment, as in the second and third embodiments, the second main reinforcing bars are arranged while the shear reinforcing bars are placed on the bar rack without being suspended. Unlike the above, the assembling apparatus of this embodiment is composed only of the main frame and does not have the sub-mount.

In the schematic diagram of the assembling apparatus 1C of this embodiment shown in FIG. 17, four main frames 40 are shown. The main reinforcement mounting portion 42 of the main frame 40 is formed of rollers and can assist the movement of the mounted main reinforcement.

A cut 32 b is formed in the lower support member 32 at a position corresponding to the main reinforcement support member 42 so that the main reinforcement support member 42 can move downward from the lower support member 32 of the bar rack 30 . A cut 36b (not shown) is also formed in the side support member 36, which is not shown in FIG.
In addition, although not shown, in the assembly apparatus 1C, a stop portion 41a is provided below the lower side support member 32 to prevent the elevating portion 43 of the main frame 40 from descending.

The main-rebar feed roller 61 provided in the assembling apparatus 1A of the first embodiment is not provided in the assembling apparatus 1C in order to avoid interference with the main-rebar placed on the main-rebar placing portion 42 that moves downward. Also, as shown in FIG. 18, the corners of the lower support members 32, 32 are oriented inward and upward.

A method of assembling the reinforcing bar cage Cg' using the assembling apparatus 1C configured as described above will be described with reference to FIG. 18 showing the assembling process. Note that the reinforcing bar cage Cg' includes upper end main bars 11 (first main bars) and lower end main bars 13 (second main bars), and does not have upper and lower double bars.

After aligning the shear reinforcing bars 20 in FIG. 18(A), the top main bars 11 and the bottom main bars 13 are inserted through the shear reinforcing bars 20 as shown in FIG. put it on
Next, as shown in FIG. 18(C), the top main reinforcement 11 and the bottom main reinforcement 13 are lifted by the main reinforcement placement section 42 to the inner side of the upper side 20a of the shear reinforcing reinforcement 20, and the top main reinforcement 11 is arranged at a predetermined position. .

Subsequently, as shown in FIG. 18(D), by lowering the main reinforcement placing portion 42 below the lower side 20d of the shear reinforcing bar 20, the lower end main reinforcement 13 is placed on the lower side 20d and arranged at a predetermined position. do. Thus, the reinforcing bar cage Cg' is assembled. In this embodiment, the main frame 40 functions not only as the first frame but also as the second frame.

According to this embodiment, the manufacturing cost of the assembling apparatus 1C can be reduced by configuring the pedestal only with the main pedestal 40 .

The assembling apparatus 1C can also assemble the reinforcing bar cage Cg according to the assembling in the first to third embodiments. In that case, when the main reinforcements are inserted into the shear reinforcing bars 20, all of the main reinforcements are inserted and placed on the main reinforcement placement section 42, and when the main reinforcement placement section 42 is lowered, the upper two-tiered reinforcement 12 and the lower two-tiered reinforcement 14 are placed. The lower end main reinforcement 13 may be arranged after sequentially arranging the side portions 20b and 20c of the shear reinforcement 20 at a predetermined arrangement height position.

<Fifth Embodiment>
FIG. 19 shows a fifth embodiment of the invention. In this embodiment, unlike the above-described fourth embodiment, instead of raising and lowering the main reinforcement mounting portion of the main frame, the reinforcement rack is raised and lowered so that the main reinforcement is placed in the shear reinforcing bars arranged side by side on the reinforcement rack. The main reinforcing bars placed on the placing part are arranged at a constant height position.

In this embodiment, an assembling apparatus 1C' is used in which the reinforcement rack 30 of the assembling apparatus 1C (FIG. 17) used in the fourth embodiment can be raised and lowered. The reinforcing rack 30 of the assembling apparatus 1C' is driven by converting the rotary motion of a motor (not shown) arranged in its vicinity into vertical motion via a transmission mechanism (not shown).

A method of assembling the reinforcing bar cage Cg' using the assembling apparatus 1C' will be described with reference to FIG. 19 showing the assembling process.
As shown in FIG. 19(A), after aligning the shear reinforcing bars 20 on the bar arrangement rack 30, the top main bars 11 and the bottom main bars 13 are inserted into the shear reinforcing bars 20 as shown in FIG. 19(B). It is put through and placed on the main reinforcement placing portion 42 of the main frame 40 .

Next, as shown in FIG. 19(C), while keeping the height position of the main reinforcing bar 42 constant, the reinforcing bar rack 30 is lowered, and the inner side of the upper side 20a of the shear reinforcing bar 20 is moved to the main bar. The top main reinforcement 11 is placed at a predetermined position within the shear reinforcement 20 in accordance with the height position of the top main reinforcement 11 placed on the mounting portion 42 .

Subsequently, as shown in FIG. 19(D), the bar arrangement rack 30 is lifted, and the inner side of the lower side 20d of the shear reinforcing bar 20 is aligned with the height position of the lower end main bar 13 placed on the main bar mounting section 42. , the lower end main reinforcement 13 is arranged at a predetermined position within the shear reinforcing reinforcement 20 . Thus, the reinforcing bar cage Cg' is assembled. As in the fourth embodiment, also in this embodiment, the main frame 40 functions not only as the first frame but also as the second frame.

According to the present embodiment, by raising and lowering the bar arrangement rack 30 on which the shear reinforcing bars 20 are arranged, the height position of the main reinforcement mounting portion 42 of the main frame 40 is kept constant and placed on the main reinforcement mounting portion 42 . The main reinforcement 10 can be arranged at a predetermined position within the shear reinforcing reinforcement 20 .

<Sixth embodiment>
20 and 21 show a sixth embodiment of the invention. In the present embodiment, unlike the first embodiment, the sub-mount has a function as a stand (second stand) on which the main bars (second main bars) other than the upper end main bars are placed in the shear reinforcing bars. Instead, it is made to be held on the main rod feed table. Therefore, the gantry of the assembling apparatus of this embodiment is composed only of the main gantry and does not have the sub-gantry.

In the schematic diagram of the assembling apparatus 1D of the present embodiment shown in FIG. there is The height of the main-rebar feed roller 61 of the main-rebar feed table 60 is set corresponding to the arrangement height position of the upper double-bar reinforcement 12 in the shear reinforcement 20 aligned on the reinforcement rack 30 . Further, as shown in FIG. 21, the lower supporting members 32, 32 of the reinforcing rack 30 have their corner portions facing inward and upward.

A method of assembling the reinforcing bar cage Cg using the assembling apparatus 1D configured as described above will be described with reference to FIG. 21 showing the assembling process.

After aligning the shear reinforcing bars 20 in FIG. 21(A), the top main bars 11 are inserted through the shear reinforcing bars 20 and placed on the main bar feed rollers 61 of the main bar feed table 60 as shown in FIG. 21(B).
Next, as shown in FIG. 21(C), the top main reinforcement 11 is lifted up by the main reinforcement placing portion 42 to the inner side of the upper side portion 20a of the shear reinforcement 20 and arranged at a predetermined position.

Next, as shown in FIG. 21(D), the upper double bar 12, the lower double bar 14 and the lower main bar 13 are inserted through the shear reinforcing bar 20 and placed on the main bar feed rollers 61. Next, as shown in FIG. Next, the upper two-tiered reinforcement 12 on the main-reinforcement feed roller 61 is arranged on the side portions 20b and 20c of the shear reinforcing reinforcement 20 .

Subsequently, as shown in FIG. 21(E) , the main-reinforcement mounting portion 42 is lifted, and the shear reinforcing bars 20 are suspended from the upper end main reinforcements 11 on the main-rebar-mounting portion 42 and removed from the bar arrangement rack 30 . As the shear reinforcing bar 20 rises, when the lower double bar 14 on the main-bar feed roller 61 reaches the height position of the lower double bar 14 on the shear reinforcing bar 20, the lower double bar 14 is lifted. They are arranged on the side portions 20b and 20c of the shear reinforcing bars 20. As shown in FIG.

By further raising the shear reinforcing bar 20, the lower end main bar 13 on the main bar feeding roller 61 is placed on the lower side portion 20d of the shear reinforcing bar 20 and arranged at a predetermined position. Thus, the reinforcing bar cage Cg is assembled. In this embodiment, the main-reinforcement feed roller 61 also functions as a main-rebar holding portion in the second frame for disposing the second main-reinforcement in the shear reinforcement 20 .

<Seventh embodiment>
22 and 23 show a seventh embodiment of the invention. In this embodiment, unlike the first to sixth embodiments, a reinforced cage having a step in the middle in the longitudinal direction is assembled.

As shown in FIG. 23(C), the reinforcing bar cage Cga has shear reinforcing bars 20A arranged side by side from one end side to the central portion of the bar rack 30 and shear reinforcing bars 20B arranged side by side on the other end side. , and the size of shear reinforcement 20B is larger than that of shear reinforcement 20A. Further, the reinforcing bar cage Cga has an upper end main bar 11A (a bent main bar, a first main bar) that is bent in the middle in the longitudinal direction in a crank shape. 20A and the shear reinforcing bar 20B to form a step of the reinforcing bar cage Cga.

The assembling apparatus 1B (FIG. 14) used in the second embodiment can be used for assembling the reinforcing bar cage Cga. A method of assembling the reinforced cage Cga using the assembling apparatus 1B will be described with reference to FIGS. 22(A) to (C) and FIGS.

As shown in FIG. 22(A), after aligning the shear reinforcing bars 20A and 20B from one end to the central portion of the bar rack 30 and the other end, as shown in FIG. 22(B), The upper end main reinforcement 11A is inserted through the shear reinforcing bars 20A and 20B, and a part of the upper end main reinforcement 11A is placed so as to bridge over a plurality of main reinforcement placing portions 42 at the same height position.

Next, as shown in FIG. 22(C), the main-reinforcement placing portions 42 corresponding to different height portions of the top main-reinforcement 11A are moved upward. As a result, the top main reinforcement 11A is stably placed on the main reinforcement placement portion 42 . Subsequently, as shown in FIG. 23A, the top main reinforcement 11A is lifted by the main reinforcement placing portion 42 to the inside of the upper side portions 20a of the shear reinforcements 20A and 20B and arranged at a predetermined position.

As shown in FIG. 23(B), the lower end main reinforcements 13 are inserted through the shear reinforcements 20A and 20B, and placed on the plurality of main reinforcement mounting portions 52 so as to span them. As shown in FIG. 23(C), by lowering the main reinforcement placing portion 52 below the lower side 20d of the shear reinforcing bars 20A and 20B, the lower end main reinforcement 13 is placed on the lower side 20d and arranged at a predetermined position. . Thus, the reinforcing bar cage Cga is assembled.

According to the present embodiment, the main-reinforcement placement section 42 can place the top main-reinforcement 11A in a stable state by varying the placement height position according to the shape of the top main-reinforcement 11A, thereby eliminating steps. It is easy to assemble the reinforcing bar cage Cga.

<Eighth embodiment>
FIG. 24 shows an eighth embodiment of the invention. In this embodiment, a reinforcing bar cage is assembled in which the top main bars are bent and steps are formed in the same manner as in the seventh embodiment. It is different from the seventh embodiment in terms of the timing of changing the position.

For assembling the reinforcing bar cage Cga in this embodiment, an assembling apparatus 1B' is used in which the reinforcing bar rack 30 of the assembling apparatus 1B (FIG. 14) used in the second and seventh embodiments can be raised and lowered.
In the assembling method of the reinforcing bar cage Cga using the assembling apparatus 1B', after the top main reinforcing bars 11A are inserted into the shear reinforcing bars 20A and 20B as shown in FIG. 22(B) of the seventh embodiment, 3, the bar arrangement rack 30 is lowered while the placement height position of the main-rebar placing portion 42 is kept constant, and the insides of the upper sides 20a of the shear reinforcing bars 20A and 20B are moved to the height positions of the upper-end main bars 11A. match the After that, as shown in FIG. 24(B), the main-reinforcement placing parts 42 corresponding to different height portions of the top main-reinforcement 11A are moved upward to stabilize the top main-reinforcement 11A.

<Ninth Embodiment>
25 and 26 show a ninth embodiment of the present invention. In the above-described seventh embodiment, the upper end main bars of the reinforcing bar cage having steps are bent, but in this embodiment, the lower end main bars are bent.

As shown in FIG. 26(C), the reinforcing bar cage Cgb has upper end main bars 11 extending linearly and lower end main bars 13A (bent main bars, second main bars) bent in the middle in the longitudinal direction in a crank shape. is doing. The bent portion 13Ax of the lower end main bar 13A is arranged between the small shear reinforcing bar 20A and the large shear reinforcing bar 20B to form a step of the reinforcing bar cage Cgb.

The assembling apparatus 1B (FIG. 14) used in the second and seventh embodiments can be used to assemble the reinforcing bar cage Cgb. A method of assembling the reinforcing bar cage Cgb using the assembling apparatus 1B will be described with reference to FIGS. 25(A) to (D) and FIGS.

As shown in FIG. 25(A), after aligning the shear reinforcing bars 20A and 20B from one end to the central portion of the bar rack 30 and the other end, as shown in FIG. 25(B), The upper end main reinforcement 11 is inserted into the shear reinforcements 20A and 20B and placed on a plurality of main reinforcement placement portions 42 so as to span.

Next, as shown in FIG. 25(C), the top main reinforcement 11 is lifted up by the main reinforcement placement section 42 to the inner side of the upper side portion 20a of the shear reinforcement 20A. Subsequently, as shown in FIG. 25(D), the lower end main reinforcement 13A is inserted through the shear reinforcing bars 20A and 20B, and the lower end main reinforcement 13A is inserted into a portion of the plurality of main reinforcement placement portions 52 at the same height position. put some.

Next, as shown in FIG. 26(A), the main-reinforcement placing portions 52 corresponding to different height portions of the lower end main-reinforcement 13A are moved upward. Thereby, the lower end main reinforcement 13A is stably placed on the main reinforcement placing portion 52 .

Next, as shown in FIG. 26(B), the main-rebar placing portion 42 is moved upward to suspend the shear reinforcing bar 20A from the top main rebar 11 on the main-rebar placing portion 42, and the top main rebar 11 is sheared. Lift up to the inner side of the upper side portion 20a of the reinforcing bar 20B. After that, the upper end main reinforcement 11 is arranged at a predetermined position within the shear reinforcements 20A and 20B.

Next, as shown in FIG. 26(C), by lowering the main reinforcement placing portion 52 below the lower side portion 20d of the shear reinforcing bars 20A and 20B, the lower end main reinforcing bar 13A is placed on the lower side portion 20d and placed in a predetermined position. Arrange. Thus, the reinforcing bar cage Cgb is assembled.

<Tenth Embodiment>
FIG. 27 shows a tenth embodiment of the invention. In this embodiment, a reinforcing bar cage is assembled in which the bottom main bars are bent to form a step in the same manner as in the ninth embodiment. It is different from the ninth embodiment in terms of the timing of changing the position.

The assembling apparatus 1B (FIG. 14) used in the second, seventh and ninth embodiments is used for assembling the reinforcing bar cage Cgb (see FIG. 26) in this embodiment.
In the method of assembling the reinforcing bar cage Cgb using the assembling apparatus 1B, as shown in FIG. 25(C) of the ninth embodiment, the upper end main bars 11 inserted into the shear reinforcing bars 20A and 20B are positioned at the upper sides of the shear reinforcing bars 20A. It is lifted to the inside of the portion 20a.

After that, as shown in FIG. 27, prior to inserting the lower end main reinforcement 13A, the placing height position of the main reinforcement placing portion 52 is varied according to the shape of the lower end main reinforcement 13A. After inserting the lower end main reinforcing bars 13A and placing them on the main reinforcing bar placing portions 52 having different placing height positions, the reinforcing bar cage is carried out in the same procedure as in the ninth embodiment (FIGS. 26B and 26C). Cgb is assembled.

The present invention is not limited to the above-described embodiments, and various modifications can be adopted without departing from the gist of the present invention. In addition, constituent elements of different embodiments may be combined as appropriate.
In the above first to third and sixth embodiments, the reinforcing bar cage having the upper double-deep reinforcement and the lower double-deep reinforcement as other main reinforcements between the top main reinforcement and the bottom main reinforcement has been described. It may have no other main bars as in the fifth embodiment, may have only one of the double bars, or may include more other bars.
In the case where there is no other main reinforcement between the upper end main reinforcement and the lower end main reinforcement as in the fourth embodiment, it is not necessary to provide the assembly apparatus with the second frame. In that case, after arranging the upper end main reinforcement in the shear reinforcing bar and tying it, inserting the lower end main bar into the shear reinforcing bar and placing it on the main bar feed table, the shear reinforcing bar is suspended by the first frame, and the lower end main bar is sheared. It may be placed on the lower side of the reinforcing bar.
In the first and sixth embodiments, the lower support members 32 and the side support members 36 of the bar rack 30 extend continuously in the longitudinal direction of the reinforcing bar cage. A cut may be provided so that the main reinforcement mounting portions 42 and 52 can move below the side support member 36 and the lower support member 32 through the cut. In this case, the stop portions 41 a and 51 a are provided below the lower side support member 32 .
In the above embodiment, the object to be assembled in advance is the reinforcing bar cage of the beam, but it may be the reinforcing bar cage of the column.
In the above-described embodiment, the main reinforcement placement section or the bar arrangement rack is raised and lowered by a motor as an elevation drive source, but it may be raised and lowered by a hydraulic or pneumatic cylinder.

INDUSTRIAL APPLICABILITY The present invention can be applied to an assembling method and an assembling apparatus for pre-assembling reinforced cages such as columns and beams of reinforced concrete structures.

Cg, Cg', Cga, Cgb Reinforcing cage 1A, 1B, 1B', 1C, 1C', 1D Assembly device 2 Scaffolding 2a Plate scaffolding 2b Lattice scaffolding 3 Reinforcement supply table 3a Temporary placement part 3b, 3e Frame 3c, 3f Roller 3d Supply part 3g Leg part 4 Stopper stand 5 U-shaped jig 10 main reinforcing bar 11 top main reinforcing bar (first main reinforcing bar)
11A Upper end main bar (bending main bar, first main bar)
11Ax Bent portion 12 Upper double bar (second main bar)
13 Lower end main reinforcement (second main reinforcement)
13A Lower end main reinforcing bar (bent main reinforcing bar, second main reinforcing bar)
13Ax Bent part 14 Lower double bar (second main bar)
20 shear reinforcing bar 20a upper side 20b, 20c side 20d lower side 30 bar rack 31 lower side support 32 lower side support 32a engaging groove (holding portion)
32b Cut 33 Horizontal Base 34 Small Post 34a Height Adjusting Means 34b Bracket 34U Small Post Unit 35 Side Support Part 36 Side Support Material 36a Engagement Groove (Holding Part)
36b Cut 37 Column 38 Base 38a Width adjustment means 40 Main frame (first frame, second frame)
41 Strut part 41a Stop part 42 Reinforcement mounting part (reinforcement holding part)
43 lifting section 43a mounting section receiving section 44 motor 45 transmission mechanism 50 sub mount (second mount)
51 Strut part 51a Stop part 52 Reinforcement placing part (reinforcement holding part)
53 lifting section 53a mounting section receiving section 54 motor 55 transmission mechanism
60 Main bar feed table (second base)
61 main-bar feed roller (main-bar holding part)
70 beam member

Claims (13)

A method for assembling a reinforcing bar cage having a plurality of main bars having portions extending parallel to each other and a plurality of frame-like shear reinforcing bars surrounding the main bars, comprising:
an aligning step of arranging the shear reinforcing bars in an upright state at predetermined intervals;
an inserting step of inserting the plurality of main reinforcing bars through the shear reinforcing bars arranged side by side;
A reinforcing bar arranging step in which a plurality of pedestals, which may be vertically movable, on which the inserted main reinforcement is placed in a bridged state and the shear reinforcement are moved relative to each other in the vertical direction, and the main reinforcement is arranged at a predetermined position within the shear reinforcement. When,
A method for assembling a reinforcing bar cage, comprising: In the reinforced cage assembly method according to claim 1,
The plurality of main reinforcements include a plurality of first main reinforcements arranged inside the upper side of the shear reinforcing bars arranged at predetermined intervals in an upright state, and the inner side of the shear reinforcing bars other than the inner side of the upper side. and a plurality of second main reinforcements arranged in the second main reinforcement, the plurality of frames including a liftable first platform for disposing the first main reinforcements,
In the reinforcement arrangement step, after the first main reinforcement is lifted by raising the first frame and arranged inside the upper side portion, the second main reinforcement is arranged in the shear reinforcing bars other than the inside of the upper side portion. including setting
A method for assembling a reinforcing bar cage characterized by: In the reinforced cage assembly method according to claim 1,
The plurality of main reinforcements include a plurality of first main reinforcements arranged inside the upper side of the shear reinforcing bars arranged at predetermined intervals in an upright state, and the inner side of the shear reinforcing bars other than the inner side of the upper side. and a plurality of second main reinforcements arranged in the second main reinforcement, the plurality of cradles including a first cradle for disposing the first main reinforcements,
In the alignment process, the shear reinforcing bars are placed side by side on a bar arrangement rack that can be raised and lowered,
The reinforcing bar arrangement step includes arranging the main reinforcement placed on the frame in the shear reinforcing bars arranged side by side on the reinforcing bar rack by raising and lowering the bar rack.
A method for assembling a reinforcing bar cage characterized by: In the reinforced cage assembly method according to claim 2 or 3,
The plurality of cradles includes a second cradle for arranging the second main reinforcement,
The reinforcing bar arrangement step includes disposing the second main reinforcement placed on the second frame by relatively moving the second frame and the shear reinforcing bar in the vertical direction in the shear reinforcing bar,
A method for assembling a reinforcing bar cage characterized by: In the reinforced cage assembly method according to claim 4,
In the reinforcing bar arrangement step, the shear reinforcing bar is suspended from the first main bar placed on the first frame and disposed inside the upper side of the shear reinforcing bar in the vertical direction relative to the second frame. disposing the second main reinforcement on the second cradle within the shear reinforcement by moving;
A method for assembling a reinforcing bar cage characterized by: In the method for assembling a reinforcing bar cage according to any one of claims 1 to 5,
The inserting step includes inserting the plurality of main reinforcing bars from the same height position into the shear reinforcing bars arranged side by side.
A method for assembling a reinforcing bar cage characterized by: In the method for assembling a reinforcing bar cage according to any one of claims 1 to 6,
The reinforcing bar cage has a step in the middle part in the longitudinal direction, the plurality of main bars include bent main bars that are bent in the middle part in the longitudinal direction in a crank shape, and the plurality of shear reinforcing bars are: The reinforcing bar cage is formed to have different sizes depending on the longitudinal portion of the cage,
The aligning step includes arranging the shear reinforcing bars of a first size in a first region in the alignment direction, and arranging the shear reinforcing bars of a second size in a second region adjacent to the first region. including arranging
The inserting step includes inserting the bending main reinforcement through the shear reinforcements of different sizes arranged side by side,
A method for assembling a reinforcing bar cage, wherein the plurality of frames on which the inserted bent main bars are placed can have different mounting height positions corresponding to the shapes of the bent main bars. A device for assembling a reinforcing bar cage having a plurality of main bars having portions extending parallel to each other and a plurality of frame-like shear reinforcing bars surrounding the main bars, the plurality of main bars being composed of the upright shear reinforcing bars. a plurality of first main reinforcements arranged inside the upper side portion;
a reinforcing bar rack provided to extend linearly and having the plurality of shear reinforcing bars arranged in an upright state at predetermined intervals;
a plurality of pedestals provided along the bar arrangement rack and capable of mounting the main bars inserted into the shear reinforcing bars arranged side by side on the bar arrangement rack in a bridging state;
The plurality of pedestals may include a first pedestal for arranging the first main reinforcing bars, each pedestal extending in a direction intersecting with the extending direction of the reinforcing bar rack and capable of lifting and lowering the main bars on which the main bars are placed. has a part
A reinforcing bar cage assembling apparatus, wherein the main bar holding part of the first frame can be lifted so that the first main bar is placed thereon and lifted at least to the inner side of the upper side part of the shear reinforcing bar. A device for assembling a reinforcing bar cage having a plurality of main bars having portions extending parallel to each other and a plurality of frame-like shear reinforcing bars surrounding the main bars, the plurality of main bars being composed of the upright shear reinforcing bars. a plurality of first main reinforcements arranged inside the upper side portion;
a reinforcing bar rack provided to extend linearly and having the plurality of shear reinforcing bars arranged in an upright state at predetermined intervals;
a plurality of pedestals provided along the bar arrangement rack and capable of mounting the main bars inserted into the shear reinforcing bars arranged side by side on the bar arrangement rack in a bridging state;
The plurality of pedestals may include a first pedestal for arranging the first main reinforcing bars, each pedestal extending in a direction intersecting with the extending direction of the reinforcing bar rack and capable of lifting and lowering the main bars on which the main bars are placed. has a part
The reinforcement rack can be raised and lowered so that the height position of the main reinforcement placed on the main reinforcement holding portion of the frame is aligned with the height position of the main reinforcement of the shear reinforcement placed side by side on the reinforcement rack. A reinforcing bar cage assembly apparatus characterized by: In the reinforced cage assembling apparatus according to claim 8 or 9,
The plurality of cradles includes a second cradle for arranging the second main reinforcement,
An apparatus for assembling a reinforcing bar cage, wherein the main-bar holding portion of the second frame and the shear reinforcing bars are vertically movable relative to each other. In the reinforced cage assembling apparatus according to claim 10,
Relatively moving in the vertical direction the main-bar holding portion of the first frame on which the first main bars are placed inside the upper side of the shear reinforcing bars and the bar arrangement rack on which the shear reinforcing bars are arranged. As a result, the shear reinforcing bar hangs from the first main bar and can be removed from the bar rack. In the reinforcing bar cage assembling apparatus according to any one of claims 8 to 11,
It is provided above the reinforcement rack, extends in a direction intersecting with the extension direction of the reinforcement rack, is rotatable around an axis, and is inserted through the shear reinforcing bars arranged side by side on the reinforcement rack. An apparatus for assembling a reinforcing bar cage, characterized by comprising a main bar feeding roller for placing the main bar on which the reinforcing bar cage is placed. In the reinforcing bar cage assembling apparatus according to any one of claims 8 to 12,
The reinforcing bar cage has a step in the middle part in the longitudinal direction, and the plurality of main bars include bent main bars that are bent in the middle part in the longitudinal direction into a crank shape, and are arranged side by side on the bar arrangement rack. The plurality of shear reinforcements includes shear reinforcements of a first size located in a first region of the reinforcement rack and shear reinforcements of a second size located in a second region adjacent to the first region. a reinforcing bar;
An apparatus for assembling a reinforcing bar cage, wherein the main-bar holding portions of the plurality of frames can have different mounting height positions corresponding to the shape of the bent main-bar.

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