JP2017089182A - Reinforcement support device and reinforcement assembly method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reinforcement support device and a reinforcement assembly method of using the same, for efficiently assembling a preassembled reinforcement.SOLUTION: A reinforcement support device is a stand 10 having a lifting column part 12 for lifting and a main reinforcement support part 30 supported by the lifting column part 12 so as to be movable in the second horizontal direction h2. This stand 10 is juxtaposed in a plurality, and a main reinforcement is arranged so as to extend to the respective main reinforcement support parts 30 of the juxtaposed stands 10. The juxtaposed stands 10 are set as an operation object in order from the end. The stand 10 of the operation object moves the main reinforcement support part 30 in the second horizontal direction h2 after lowering the lifting column part 12, and floats the main reinforcement in the air in an area for supporting the main reinforcement. In this case, the main reinforcement can easily pass a shear reinforcement in the stand 10 of this operation object due to being supported by the other stand 10. The stand 10 of the operation object is changed in order from the end, so that the shear reinforcement is efficiently arranged to the previously juxtaposed main reinforcement support part 30.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a reinforcing bar support device for supporting a reinforcing bar to assemble a pre-assembled reinforcing bar and a reinforcing bar assembling method using the same.

  Conventionally, in order to construct reinforced concrete columns and beams, pre-assembled reinforcing bars with pre-attached annular shear reinforcement bars (hoops and stirrups) around the main bars may be assembled. . In this case, after arranging a plurality of main bars on the support base, the shear reinforcement bars are passed through the ends of the main bars. An annular shear reinforcement bar is arranged on the outer periphery of these main bars. As described above, when assembling the pre-assembled reinforcing bars, it is necessary to lift one side of the plurality of main reinforcing bars at a time from the support base, which is a heavy labor burden.

  Therefore, in order to efficiently assemble the pre-assembled reinforcing bar, a rebar assembling apparatus has been studied (for example, refer to Patent Document 1). In the technique described in this document, first, the band or gluteal muscles that are bundled between the support arms of the gantry are placed, the main muscles are inserted into these band muscles, etc., the whole is raised, the band muscles that are bundled, etc. Are tied to the main muscles at predetermined intervals. After that, the other main muscles are inserted into the band or the like and tied.

JP-A-9-119219

  In the technique described in Patent Document 1, it is necessary to insert a plurality of main bars into the arranged annular shear reinforcement bars. However, since the main bars are long and heavy, it is difficult to insert the plurality of main bars into the plurality of annular shear reinforcement bars.

  The present invention has been made in view of the above problems, and an object thereof is to provide a reinforcing bar support device for efficiently assembling a pre-assembled reinforcing bar and a reinforcing bar assembling method using the same.

  A reinforcing bar support device for solving the above-mentioned problem is a reinforcing bar support device for supporting a first reinforcing bar in order to assemble a pre-assembled reinforcing bar in which a plurality of first reinforcing bars are combined with an annular second reinforcing bar, The first rebar can be mounted and includes a first rebar support part that can move in the horizontal direction and a lifting column part that supports the first rebar support part and can be moved up and down. Accordingly, first, the plurality of reinforcing bar support devices are arranged apart from each other, and the first reinforcing bars are supported so as to cross over the corresponding first reinforcing bar support portions of the reinforcing bar support devices. And let the rebar support apparatus located in a line be operation object from an end. The gantry to be operated moves the first rebar support part in the horizontal direction after descending the lifting column, and floats the first rebar in the air in the region where the first rebar was supported. In this case, since the first rebar is supported by another gantry, the second rebar can be easily passed through the gantry to be operated. And by changing the base for operation in order from the end, the second reinforcing bars can be efficiently arranged with respect to the first reinforcing bar support portions arranged in advance, and the pre-assembled reinforcing bars are efficiently assembled. Can do.

  In the reinforcing bar support device, the lifting column part supports only one end of the first reinforcing bar support part, and the lifting / lowering column part is supported in the state where the first reinforcing bar support part is supported by the lifting column part. It is preferable to provide a base on which the column part does not fall. For this reason, a 1st reinforcing bar can be efficiently arrange | positioned to a 1st reinforcing bar support part from the side by which the raising / lowering pillar part is not arrange | positioned.

  In the reinforcing bar support device, it is preferable that a plurality of the lifting and lowering column portions are provided, and the lifting and lowering column portions support both ends of the first reinforcing bar supporting portion. Thereby, a 1st reinforcing bar support part can be supported stably in both sides.

  The reinforcing bar support device includes a driving device that can move the elevating column part in a horizontal direction and a control unit that controls the driving device, and the control unit acquires information about the pre-assembled reinforcing bar, It is preferable to calculate an interval between the gantry based on information on the assembled reinforcing bars and to control the driving device so as to be the calculated interval. Accordingly, the gantry can be arranged at a more appropriate position in consideration of the configuration of the pre-assembled reinforcing bar and its own weight.

  A reinforcing bar assembling method for solving the above-described problem is a reinforcing bar assembling method for assembling a pre-assembled reinforcing bar in which an annular second reinforcing bar is combined with a plurality of first reinforcing bars, wherein the first reinforcing bar extends. A plurality of reinforcing bar support devices are arranged side by side in one horizontal direction, supported by a lifting column portion of the reinforcing bar support device, and movable in a second horizontal direction perpendicular to the first horizontal direction. After the first rebar is supported, the first rebar support part of the lifting column part of the rebar support device to be operated is lowered, and the first rebar support part is moved in the horizontal direction. The first rebar in the support device is suspended in the air, the second rebar is passed, and after the second rebar has passed, the first rebar support part is moved in the horizontal direction to In front of the reinforcing bar support device to be operated The first reinforcing bar supporting portion, said first reinforcing bar was again supported, the rebar support device of the operation target is changed in order from the extending direction of the end of the first reinforcing bar. As a result, the first rebar support part of the gantry to be operated is moved, and the first rebar is suspended in the air in the region where the first rebar of the gantry is supported, and the second rebar can be easily moved on the gantry. Can be passed. Therefore, a 2nd reinforcing bar can be efficiently arrange | positioned with respect to the 1st reinforcing bar arranged previously.

  According to the present invention, the pre-assembled reinforcing bar can be efficiently assembled.

It is a block diagram of the reinforcing bar support apparatus in 1st Embodiment, (a) is a front view, (b) is a right view, (c) is a partially expanded view of the principal part of (b). It is the whole figure which has arranged the reinforcing bar support device in a 1st embodiment, (a) is a top view and (b) is a right view. It is the front view which made the main reinforcement place in the main reinforcement support part of a reinforcing bar support device in a 1st embodiment, (a) is in the state made to mount in a part of main reinforcement support part, and (b) is all the main reinforcement support parts. The state put on is shown. It is a figure explaining the reinforcing bar assembly method in a 1st embodiment, and (a) and (b) are the top views and right side views when moving the main reinforcement support part of the end reinforcing bar support device, (c) and ( d) The top view and right view when moving the main reinforcement support part of the 2nd reinforcing bar support apparatus from an end. It is a front view explaining a reinforcing bar assembly method in a 1st embodiment, (a) is in the state where the raising / lowering pillar part of a mount was lowered, (b) is the state where the main reinforcement support part was horizontally moved outside, (c ) Shows a state in which the shear reinforcement bar is passed, (d) shows a state in which the main bar support part is moved horizontally and returned, and (e) shows a state in which the elevating column part of the reinforcing bar support device is raised. The front view of the reinforcing bar support apparatus in 2nd Embodiment. The top view of the whole which has arrange | positioned the reinforcing bar support apparatus in 2nd Embodiment. It is a front view explaining a reinforcing bar assembling method in the second embodiment, (a) is a state where the main bars are placed on some main bar support parts, (b) is a state where the main bars are placed on all main bar support parts. (C) is a state in which the elevating column part of the gantry is lowered, (d) is a state in which the main reinforcement supporting part is pulled out and a shear reinforcement is passed, (e) is a state in which the main reinforcing bar support part is returned, (F) shows the state which raised the raising / lowering column part of the mount frame, and supported the main muscle. In other embodiment, it is a figure which shows the structure of the control part which controls a reinforcing bar support apparatus, Comprising: When (a) controls position adjustment of a main reinforcement support part, (b) controls position adjustment of a reinforcing bar support apparatus. Indicates when to do.

  Hereinafter, an embodiment in which the reinforcing bar supporting device is embodied will be described with reference to FIGS. 1 to 5. In the present embodiment, a reinforcing bar support device used when assembling a prefabricated reinforcing bar in which annular shear reinforcing bars (second reinforcing bars) are dispersed with respect to a plurality of main reinforcing bars (first reinforcing bars) will be described. Here, the shear reinforcement is, for example, a stirrup or a hoop.

FIG. 1A and FIG. 1B are a front view and a right side view, respectively, of the reinforcing bar support device of the present embodiment.
As shown in FIG. 1 (a), a gantry 10 as a reinforcing bar support device includes a base B1, a column fixed to the base B1 on the right side of the base B1, and a part of the column ascending / descending. And a plurality of main bar support portions 30 for supporting the main bar as the first reinforcing bar.

  The column portion includes two pairs (four) of fixed column portions 11 and an elevating column portion 12 arranged corresponding to each fixed column portion 11. The fixed column portion 11 is fixed to the base B1. In this embodiment, base B1 has a reinforcement member so that the fixed pillar part 11 may not fall down. The elevating column part 12 is supported so as to be slidable up and down with respect to the fixed column part 11. The elevating / lowering column portion 12 can be moved up and down by a jack 20.

  The main bar support portion 30 is a horizontal direction (second direction) orthogonal to the horizontal direction in which the main bar extends (first direction h1: direction perpendicular to the paper surface of FIG. 1A, left-right direction of FIG. 1B). h2: It extends in the left-right direction in FIG. The main muscle support portion 30 in the present embodiment is supported by the elevating column portion 12 of the column portion so as to be movable in the second direction h2 on one side in the second direction h2 (the right side in FIG. 1A).

Hereinafter, the detail of each structure which comprises the mount frame 10 is demonstrated.
As shown in FIG. 1A and FIG. 1B, four fixed column portions 11 and elevating column portions 12 of the gantry 10 are arranged so as to overlap each other in the horizontal direction. The fixed column portion 11 and the elevating column portion 12 are made of channel steel. Each fixed column part 11 is arrange | positioned in the direction which the outer side (left-right side in FIG.1 (b)) opens. Each lifting / lowering column part 12 is arrange | positioned inside the corresponding fixed pillar part 11 (centerline c1 side), and is arrange | positioned in the direction which the outer side opens. A guide member 13 that is slidably engaged with each elevating column portion 12 is attached to the upper and lower portions of the fixed column portion 11. Further, each elevating column portion 12 is provided with two rows of long holes 12a (see FIG. 1A) extending in the vertical direction. Moreover, the lower end part of each raising / lowering column part 12 is attached to the edge part of the connection part 14, and the lower end part of the adjacent raising / lowering column part 12 is connected via the connection part 14. FIG. As a result, the four connecting portions 14 are provided so as to have a square frame shape as a whole. The tip of a ram (reciprocating part) 21 of the jack 20 is fixed near the center of one connecting part 14.

  As shown in FIG. 1A and FIG. 1B, a jack 20 is disposed below a region surrounded by the four elevating column parts 12. The jack 20 includes a handle 22 that can rotate in both directions. The handle 22 is disposed outside the fixed column portion 11. By rotating the handle 22, the ram 21 expands and contracts. The tip of the ram 21 is fixed to the connecting portion 14. And according to the expansion-contraction of the ram 21, each raising / lowering pillar part 12 is raised / lowered simultaneously.

  As shown in FIG. 1B, in the present embodiment, a holding member 15 is provided between a pair of (two) lifting columns 12 facing each other. The holding members 15 are spaced apart from each other at three locations, an upper portion, a central portion, and a lower portion of the elevating column portion 12. These holding members 15 are set to a height corresponding to the arrangement of the main reinforcing bars Ra of the pre-assembled reinforcing bars to be assembled. Moreover, the holding member 15 attached to the two raising / lowering pillar parts 12 arrange | positioned in the 2nd direction h2 is provided in the same height.

  FIG.1 (c) is the enlarged view to which the part of the holding member 15 of FIG.1 (b) was expanded. As shown in FIG. 1 (c), the holding member 15 includes a U-shaped column mounting portion 15a having an open top, and a pair (two) of plate-shaped rollers protruding below the column mounting portion 15a. And an attachment portion 15b. Each side surface portion of the column attaching portion 15a is aligned with the long hole 12a of the elevating column portion 12, and the holding member 15 is attached to each elevating column portion 12 via a fixture (bolt and nut). In each roller mounting portion 15b, four rollers 16 are arranged two apart from each other in the vertical direction and the second direction h2. The distance between the upper and lower rollers 16 is the same as the thickness that can be supported by sandwiching the placement portion 30a of the main muscle support portion 30.

  The main muscle support portion 30 is a long object having a substantially T shape. The main bar support portion 30 is supported by being sandwiched between the rollers 16 of the holding member 15 of the elevating column portion 12. Thereby, the main muscle support part 30 of this embodiment is supported by the raising / lowering pillar part 12 by the cantilever so that the movement to the 2nd direction h2 is possible.

Next, with reference to FIGS. 2 to 5, a method for assembling the prefabricated reinforcing bars will be described using the gantry 10 described above. In this case, a plurality (for example, five) of the gantry 10 is used.
FIG. 2 is a schematic diagram of the gantry 10 in a use state, and FIGS. 2A and 2B are a top view and a right side view, respectively.

  As shown in FIG. 2A, when assembling the prefabricated reinforcing bars, the operator arranges the plurality of mounts 10 in a row so as to be spaced apart so that the bases B1 are parallel. Here, the distance between the center bases 10 is set longer than the distance between the end bases 10. In this case, the tip of the ram 21 of the jack 20 is set at a high position, and the lifting column 12 of the gantry 10 is placed at a high position.

  Furthermore, the main bar locking base 40 provided with the contact plate 41 is arranged outside the row of the gantry 10 (on the right side of the right end in FIG. 2A). In this case, the main bar locking base 40 is arranged so that the contact plate 41 faces the main bar support 30 of each gantry 10. The backing plate 41 is formed with a recess in which the tip of the main reinforcing bar Ra is locked at a position corresponding to the arrangement of the main reinforcing bar (first reinforcing bar) Ra.

  And according to arrangement | positioning of main reinforcement Ra, main reinforcement Ra is arrange | positioned so that the mounting part 30a of the main reinforcement support part 30 of each mount frame 10 may be crossed. In this case, the main muscle Ra is arranged from the lower main muscle support section 30. Specifically, the uppermost and second-stage main muscle support portions 30 are horizontally moved in the second direction h2, and the upper portion of the lowermost-stage main muscle support portion 30 is opened. And the main muscle Ra is arranged on this main muscle support part 30 in the state which open | released the upper direction of the main bar support part 30 of the lowest step. Next, the second-stage main bar support part 30 is horizontally moved to the opposite side to the second direction h2 above the lowermost main bar support part 30. In this case, the upper part of the second-stage main muscle support part 30 is in an open state.

  Then, as shown in FIG. 3A, the main muscle Ra is arranged on the placement portion 30 a of the main muscle support portion 30. Next, the uppermost main bar support part 30 is horizontally moved above the main bar support part 30 to the side opposite to the second direction h2. And as shown in FIG.3 (b), on the mounting part 30a of this main reinforcement support part 30, the main reinforcement Ra is arranged side by side. In this case, in all the gantry 10 shown in FIG.2 (b), as shown in FIG.3 (b), main reinforcement | strength Ra is arranged on each main reinforcement support part 30. As shown in FIG.

  Next, the following operation processing is executed in order from the stand 10 at the end. In this case, each main bar support portion 30 of the other gantry 10 supports the plurality of main bars Ra as it is in the state of FIG.

First, as shown in FIGS. 4A and 4B, the leftmost gantry 10 is set as an operation target.
In this case, as shown in FIG. 5A, the handle 22 of the gantry 10 to be operated is operated, the ram 21 of the jack 20 is lowered, and the elevating column portion 12 is lowered. In connection with this, each main reinforcement support part 30 attached to the raising / lowering pillar part 12 falls.

  Next, as illustrated in FIG. 5B, the main muscle support portion 30 is moved in the second direction h <b> 2 (the lifting column portion 12 side). In this case, in the region supported by the gantry 10, the main muscle Ra supported by the other gantry 10 is in a suspended state. Therefore, as shown in FIG. 4A, FIG. 4B and FIG. 5C, the annular shear reinforcement bar Rb is passed through the portion supported by the main bar support portion 30.

  Then, as shown in FIG. 5D, when the annular shear reinforcement bar Rb is passed, the main bar support part 30 is moved horizontally to the side opposite to the second direction h2 (the side where the shear reinforcement bar Rb is disposed). . Further, the handle 22 is rotated in the reverse direction to extend the ram 21 of the jack 20 and raise the elevating column portion 12. Along with this, as shown in FIG. 5 (e), the respective main muscle support portions 30 attached to the elevating column portion 12 rise and support each main muscle Ra.

In this manner, the annular shear reinforcement is passed through the end frame 10 shown in FIGS. 4 (a) and 4 (b). Next, as shown in FIGS. 4C and 4D, the gantry 10 adjacent to the gantry 10 is set as an operation target. Also in this case, as shown in FIGS. 5 (a) and 5 (b), the main bar support portion 30 of the gantry 10 to be operated is lowered and then horizontally moved in the second direction h2, so that this gantry In the area where the main muscle Ra is supported at 10, the main muscle Ra is floated in the air. Then, as shown in FIG. 5C, the shear reinforcing bar Rb is passed. When this passage is finished, as shown in FIGS. 5 (d) and 5 (e), the main muscle support portion 30 is horizontally moved in the opposite direction to the second direction h2 and returned to the original position. Then, the main muscle Ra is supported by the main muscle support portion 30 again.
As described above, by executing the operation process with the gantry 10 arranged in a line in order from the end, the shear reinforcement bar Rb is arranged on the extending main bar Ra, and the pre-assembled reinforcing bar is assemble.

According to this embodiment, the following effects can be obtained.
(1) The reinforcing bar support device of the present embodiment is a gantry 10 that includes a lifting column 12 that moves up and down and a main bar support 30 that is supported by the lifting column 12 so as to be movable in a second direction h2. A plurality of the gantry 10 are arranged side by side, and the main reinforcing bars Ra are arranged so as to extend over the main bar support portions 30 of the gantry 10 arranged side by side. Then, the gantry 10 arranged side by side is set as an operation target sequentially from the end. The gantry 10 to be operated moves the main muscle support part 30 in the second direction h2 after descending the elevating column part 12, and floats the main muscle Ra in the air in the region where the main muscle Ra is supported. In this case, since the main reinforcement Ra is supported by the other gantry 10, the shear reinforcement bar Rb can be easily passed through the gantry 10 to be operated. And by changing the gantry 10 to be operated in order from the end, the shear reinforcing bars Rb can be efficiently arranged with respect to the main reinforcing bar support portions 30 arranged in advance, and the pre-assembled reinforcing bars are efficiently assembled. be able to.

  (2) The main bar support portion 30 of the gantry 10 of this embodiment is cantilevered by the elevating column portion 12 on one side. For this reason, when the main muscle support part 30 is moved, it has the structure by which the opposite side of the raising / lowering pillar part 12 was open | released. Therefore, the main muscle Ra can be efficiently arranged on the main muscle support section 30 from the opposite side of the lifting column section 12.

  (3) The gantry 10 of the present embodiment includes a holding member 15 that is fixed over a pair of elevating column parts 12. The holding member 15 includes a roller 16 that is arranged in the vertical direction with an interval between the placement portions 30 a of the main muscle support portion 30. For this reason, with a simple configuration, the main muscle support portion 30 can be supported by the elevating column portion 12 so as to be horizontally movable.

(4) Each raising / lowering pillar part 12 of this embodiment is supported by the fixed pillar part 11 corresponding to this so that sliding is possible. Thereby, the raising / lowering pillar part 12 can be raised / lowered smoothly.
(5) The lower end part of each elevating pillar part 12 of this embodiment is connected by the connection part 14, and the front-end | tip of the ram 21 of the jack 20 is being fixed to the central part vicinity of this connection part 14. FIG. For this reason, it is possible to raise and lower the elevating column parts 12 all at once according to the raising and lowering of the ram 21 with a simple configuration.

  (6) The holding member 15 of the present embodiment is attached so as to engage with the long hole 12a formed in the elevating column portion 12. For this reason, by changing the position of the holding member 15 with respect to the long hole 12a, the main bar support portion 30 can be arranged at a height more suitable for the arrangement of the main bars Ra according to the configuration of the pre-assembled reinforcing bar to be assembled.

(Second Embodiment)
Next, a second embodiment of the reinforcing bar support device will be described with reference to FIGS. In this embodiment, instead of supporting on one side of the main muscle support portion 30 in the first embodiment, the configuration is only changed to support at both ends. For this reason, the same code | symbol is attached | subjected about the part similar to the reinforcing bar support apparatus of 1st Embodiment, and the detailed description is abbreviate | omitted.

  As shown in FIG. 6, in the gantry 50 as the reinforcing bar support device of the present embodiment, the two pairs of elevating column parts 12 are arranged with an interval larger than the width of the annular shear reinforcing bar Rb. The main muscle support portion 30 has a length extending over the two pairs of elevating column portions 12. Therefore, both end portions of the main muscle support portion 30 are supported by the spaced elevating column portions 12 respectively.

As shown in FIG. 7, also in the present embodiment, as in the above-described embodiment, the plurality of mounts 50 are spaced apart and arranged in a row so that the bases B <b> 1 of the main muscle support portion 30 are parallel to each other.
Then, the main muscle Ra is arranged on the upper surface of the placement portion 30a of the main muscle support portion 30. In this case, as in the above-described embodiment, the main muscles Ra are arranged from the lower main muscle support portion 30.
Specifically, as shown in FIG. 8A, after reinforcing bars are arranged on the placement portion 30 a of the lowermost main muscle support portion 30, the main muscle Ra is placed on the placement portion 30 a of the second-stage main muscle support portion 30. Line up.

  Next, as shown in FIG. 8B, the uppermost main muscle support portion 30 is supported by the elevating column portion 12 so as to cover the second-stage main muscle support portion 30, and The main muscle Ra is arranged on the mounting part 30a.

Then, the plurality of mounts 50 shown in FIG. 7 are set as operation targets in order from the end mount 50 as in the first embodiment.
Specifically, as shown in FIG. 8 (c), the ram 21 of the jack 20 of the gantry 50 to be operated is lowered, and the elevating column part 12 and the main bar support part 30 supported thereby are lowered.

  Next, as shown in FIG. 8D, all the main muscle support portions 30 of the operation target base 50 are moved and removed in the second direction h2. In this case, in the gantry 50, the main muscle Ra is in a floating state in the region where the main muscle Ra is supported by the main muscle support portion 30, and the shear reinforcing bar Rb is allowed to pass through this region.

Next, as shown in FIG. 8 (e), when the shear reinforcing bar Rb has been passed, the removed main bar support part 30 is moved in the horizontal direction and supported by the two lifting columns 12.
Next, as shown in FIG.8 (f), the ram 21 of the jack 20 is raised and the raising / lowering pillar part 12 and the main reinforcement support part 30 supported by this are raised. And the raised main muscle support part 30 supports the main muscle Ra again.
By performing the above-described operation processing in order from the pedestal 10 at the end, the shear reinforcement bars Rb are arranged for the extending main bars Ra in the same manner as in the first embodiment.

  According to this embodiment, in addition to the effects similar to the effects described in (1) and (3) to (6) above, the following effects can be obtained.

  (7) The main bar support portion 30 of the gantry 10 of the present embodiment is supported at both ends by two pairs of elevating column parts 12 spaced apart from each other by a distance larger than the width of the annular shear reinforcement bar Rb. For this reason, the main muscle support part 30 can be supported stably.

Further, the above embodiments may be modified as follows.
-The gantry 10 of each said embodiment supported the main muscle support part 30 provided with the mounting part 30a so that a movement was possible. Furthermore, you may provide the latching | locking part which latches the position of the main reinforcement Ra in the mounting part 30a. For example, a V-shaped groove as a locking portion may be provided on the upper surface of the mounting portion 30a, and the main reinforcement Ra may be locked in this groove.

  In the gantry 10 of each of the above embodiments, the main bar support portion 30 is supported by the elevating column portion 12 using the holding member 15 set to a height corresponding to the arrangement of the main reinforcing bar Ra of the pre-assembled reinforcing bar. In this case, the height of the lowermost main muscle support portion 30 may be set higher by a predetermined value than the position at the time of assembly. In this case, in the gantry 10, after passing the shear reinforcing bar Rb, the lowermost main bar support part 30 is left without being returned to the original position, and the lowermost main bar Ra is passed through the shear reinforcing bar Rb. To support. Thereby, by arranging the main reinforcement Ra slightly inside the size of the shear reinforcement Rb, the shear reinforcement Rb can be smoothly arranged between the main reinforcements Ra.

  In the above embodiment, the three main bar support portions 30 are attached to the lifting column 12 of the gantry 10. The number of the main reinforcement support portions 30 is not limited to this, and may be increased or decreased according to the arrangement of the main reinforcement Ra of the pre-assembled rebar.

  -The main bar support part 30 of each said embodiment is supported with respect to the raising / lowering pillar part 12 by the holding member 15 set to the height according to arrangement | positioning of the main bar Ra of a pre-assembled reinforcing bar. Here, the height of the holding member 15 may be automatically set according to the arrangement of the main reinforcing bars Ra of the pre-assembled reinforcing bars. For example, each lifting column 12 of the gantry 10 is provided with a holding member moving device 70 having a motor or the like. The holding member moving device 70 moves the holding member 15 and holds it at a predetermined position.

  Specifically, as illustrated in FIG. 9A, the computer terminal 60 includes a control unit 61 and an input unit 65. Here, as the computer terminal 60, a tablet terminal provided with a touch panel display or the like can be used. The input unit 65 receives bar arrangement information using a touch panel display. This bar arrangement information includes size information (size such as weight and dimensions) and position information (arrangement interval etc.) regarding the main reinforcing bar Ra and the shear reinforcing bar Rb. The control unit 61 includes a support unit height calculation unit 610. This support part height calculation part 610 calculates arrangement | positioning (height) of each main reinforcement support part 30 according to the dimension of the main reinforcement to arrange | position based on reinforcement arrangement | positioning information. And the support part height calculation part 610 drives the holding member moving apparatus 70, and adjusts arrangement | positioning of each main muscle support part 30. FIG. Thereby, it can be made automatically to arrangement | positioning of the main reinforcement according to the reinforcement arrangement information of the pre-assembled reinforcement to assemble.

  In each of the above embodiments, when using the gantry 10, an operator arranges the gantry 10. Instead of this, the gantry 10 may be automatically arranged. For example, four wheels are provided below each mount 10. Furthermore, a drive control unit that drives these wheels is provided, and a control unit that controls each drive unit is provided. And a control part calculates the space | interval of the suitable base 10 from bar arrangement information and base information, and arrange | positions a base according to this space | interval.

  Specifically, as shown in FIG. 9B, each gantry is provided with a wheel driving unit 71 that controls driving of the wheels. Furthermore, the computer terminal 60 includes a control unit 61 and an input unit 65. In addition to the bar arrangement information, pedestal information related to the number of pedestals to be used is input to the input unit 65. The control unit 61 includes a reaction force / deflection calculation unit 611 and a gantry arrangement calculation unit 612.

  The reaction force / deflection calculation unit 611 of the control unit 61 acquires the arrangement information and the gantry information via the input unit 65, and calculates the reaction force of each gantry and the deflection of the reinforcing bar from these. The gantry arrangement calculating unit 612 of the control unit 61 calculates the interval between the gantry to reduce the calculated reaction force of the gantry and the bending of the reinforcing bar, and outputs a control signal to the wheel driving unit 71 so as to be the interval.

  The control unit 61 controls the wheel driving unit 71 so that the distance from the adjacent gantry is minimized during storage. Thereby, it can be stored in a space-saving manner when not in use. Moreover, the control part 61 controls the wheel drive part 71 so that it may become the space | interval of the mount calculated according to the bar arrangement information acquired from the input part 65, or mount information, when using. Thereby, arrangement | positioning suitable for the size of a reinforcing bar and the number of mounts to be used can be performed.

  In each of the above embodiments, the lifting column 12 of the gantry 10 is manually lifted and lowered by the jack 20 provided with the handle 22. The mechanism for raising and lowering the elevating column part 12 is not limited to this, and the elevating column part 12 may be raised and lowered by a jack provided with a motor or the like. Further, in each of the above embodiments, the lower end portions of the four elevating column portions 12 are connected by the connecting portion 14, and the ram 21 of the jack 20 is attached near the central portion of the connecting portion 14. The two elevating column parts 12 were raised and lowered all at once. Instead of this, two jacks that raise and lower the elevating column parts 12 in synchronization with each other may be provided, or a plurality of jacks that elevate and lower each elevating column part 12 may be provided. Furthermore, you may raise / lower the raising / lowering pillar part 12 using raising / lowering mechanisms other than a jack.

  Furthermore, the elevating column portion 12 may be automatically raised and lowered in response to the passage of a predetermined number of shear reinforcement bars. In this case, in each gantry 10, a count sensor that counts that the shear reinforcement has passed is attached to the gantry 10. And a control part calculates the number (passage number) of the shear reinforcement bars which pass each rack 10 according to arrangement | positioning of a shear reinforcement bar and the rack 10, and sets this passage number to a count sensor.

  After the operation target jack 20 is lowered, the control unit raises the lifting column 12 after the set number of passing shear reinforcement bars have passed. Then, the jack 20 of the gantry 10 which is the next operation target is lowered. Thereby, according to the number of the shear reinforcement bars which passed, each base can be raised / lowered appropriately.

  -The reinforcing bar support apparatus of each said embodiment was used in order to assemble the pre-assembled reinforcing bar using a rod-shaped main reinforcing bar and an annular shear reinforcement bar. The pre-assembled reinforcing bar assembled in this reinforcing bar supporting device is not limited to the case where an annular shear reinforcing bar is used. For example, when using a U-shaped shear reinforcement bar or a spiral shear reinforcement bar that is partially open, it should be applied to pre-assembled reinforcing bars that use an annular shear reinforcement bar that is difficult to place while supporting the main bar. Can do.

  B1 ... Base, h1 ... First direction, h2 ... Second direction, Ra ... Main bar, Rb ... Shear reinforcement, 10, 50 ... Base, 11 ... Fixed column part, 12 ... Elevating column part, 12a ... Long hole, DESCRIPTION OF SYMBOLS 13 ... Guide member, 15 ... Holding member, 15a ... Column attaching part, 15b ... Roller attaching part, 16 ... Roller, 20 ... Jack, 21 ... Ram, 22 ... Handle, 30 ... Main reinforcement support part, 30a ... Mounting part, DESCRIPTION OF SYMBOLS 40 ... Main bar | burr locking stand, 41 ... Pad plate, 60 ... Computer terminal, 61 ... Control part, 65 ... Input part, 70 ... Holding member moving apparatus, 71 ... Wheel drive part.

Claims (5)

A rebar support device for supporting the first rebar in order to assemble a pre-assembled rebar in which a plurality of first rebars are combined with an annular second rebar,
A first rebar support section on which the first rebar can be placed and is movable in a horizontal direction;
A reinforcing bar support device comprising: a lifting / lowering column part that supports the first reinforcing bar support part and is capable of moving up and down. The lifting column portion supports only one end portion side of the first rebar support portion,
2. The reinforcing bar support device according to claim 1, further comprising a base on which the lifting column part does not fall in a state where the first reinforcing bar support part is supported by the lifting column part. 3. Comprising a plurality of the lifting columns,
The reinforcing bar support device according to claim 1, wherein the elevating column part supports both ends of the first reinforcing bar support part. A driving device capable of moving the elevating column part in a horizontal direction, and a control unit for controlling the driving device;
The controller is
Obtain information about the pre-assembled rebar,
Based on the information about this pre-assembled reinforcing bar, the distance between the gantry is calculated,
The reinforcing bar support device according to any one of claims 1 to 3, wherein the driving device is controlled so as to be the calculated interval. A rebar assembling method for assembling a pre-assembled rebar combining a plurality of first rebars with an annular second rebar,
A plurality of reinforcing bar support devices are arranged side by side in the first horizontal direction in which the first reinforcing bar extends,
After the first rebar is supported on the first rebar support unit supported by the lifting column of the rebar support device and movable in the second horizontal direction orthogonal to the first horizontal direction,
The first rebar support part of the elevating column part of the rebar support device to be operated is lowered, the first rebar support part is moved in the horizontal direction, and the first rebar in the rebar support apparatus is suspended. And let the second rebar pass through,
After the second rebar has passed, the first rebar support part is moved in the horizontal direction, the lifting column part is raised, and the first rebar support part of the rebar support device to be operated is Support the first rebar again,
The reinforcing bar assembling method, wherein the reinforcing bar supporting device to be operated is changed in order from the end in the extending direction of the first reinforcing bar.