JPH0734794A - Setting-up and arranging apparatus for reinforcement - Google Patents

Abstract

PURPOSE:To improve the efficiency of the work of setting-up and arranging reinforcements, by a method wherein a movable platform provided with extensible legs, which has a turning frame, a transverse reinforcement gage and so on, is mounted on a guide beam, at both ends of which extensible legs are provided, the reinforcements are set-up at the top of the movable platform, and in that state they are arranged. CONSTITUTION:A movable platform 7 having extensible legs 10, a circular guide-ring 11, a turning frame 14, a transverse reinforcement gage 24, a main reinforcement gage 31 and so on is mounted on a guide beam 1 having extensible legs 3, a reinforcement lifter 5 and so on. The length of the movable platform 7 is made a half length of the guide beam, and the turning frame 14 is made in the shape of a circular arc, which length is about one-third of the peripheral length on the inner wall of a tunnel. After that, reinforcements are set-up at the top of the gages 14, 31 provided on the movable platform 7, and in that state they are arranged around the inner surface of the tunnel by using the reinforcement lifter 5 and a gage lift cylinder 23. In the case where the guide beam 1 is moved, the extensible legs 3 therefor and the extensible legs 10 are alternately extended, and the guide beam 1 is moved. In this way, since the work of arranging the reinforcements is turned into light labor and labor saving is attained, the work can be effectively done.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for assembling and arranging reinforcing bars to be put in lining concrete in tunnel construction.

[0002]

2. Description of the Related Art Conventionally, there has been no assembly / rearrangement device of this type, and when reinforcing bars are put in lining concrete in tunnel construction, they are laid in a tunnel 61, for example, as shown in FIG. Rail in tunnel direction (not shown)
Using a work carriage 62 that can run on the
5 to 8 workers M are riding on the 2 to assemble, arrange and bind the mesh-shaped reinforcing bar 63 including the main reinforcing bar 63a and the distributing bar 63b. In FIG. 18, 64 is a reinforcing bar 6.
It is a lining concrete containing 3.

[0003]

However, the conventional work of assembling and arranging reinforcing bars is complicated and heavy labor, and since all of them are performed manually, there is a problem that a large number of workers are required. Therefore, an object of the present invention is to provide a rebar assembling / rearranging device capable of facilitating rebar assembling and rebar work in a tunnel, reducing labor and labor.

[0004]

In order to solve the above-mentioned problems, a device for assembling and arranging reinforcing bars according to the present invention comprises a guide beam which extends in the tunnel direction and is supported by the legs at both ends on the tunnel shaft center portion. A movable base having a length that is about half the length of the guide beam and is fitted to the outer periphery of the guide beam so as to be movable in the longitudinal direction,
Circular guide rings mounted on the outer circumferences of both ends of the movable frame, swivel frames mounted on both guide rings so as to swivel along the outer circumferences, and gauge lift cylinders mounted on both swivel frames are used in the tunnel respectively. A force distribution gauge that is installed on the wall so that it can move forward and backward, has an arc shape with a length of about 1/3 of the inner wall surface of the tunnel, and supports a large number of force distribution muscles at the required positions, and both force distribution muscle gauges. It is arranged between both gauges at both ends of the, and is provided so as to be able to advance and retreat to the reinforcing bar support part of the force distribution gauge through the main muscle set cylinder attached to each force distribution gauge, and it supports many main muscles at the required positions. And a gauge. Desirably, the legs of the guide beam are extendable and the extendable legs are provided at both ends of the movable base. Further, it is preferable that the guide beam is provided with a reinforcing bar lifter for raising the reinforcing bar above the guide beam at the end. On the other hand, it is preferable that each of the distribution muscle gauges is provided so that its curvature can be changed. Further, it is preferable that each of the distribution muscle gauges is provided so that both ends thereof can be bent toward the center of curvature.

[0005]

In the above means, the reinforcing bar can be assembled on the gauge of the movable base, and the assembled mesh-shaped reinforcing bar can be moved to a desired position on the inner wall surface of the tunnel. The legs of the guide beam are extendable, and the legs of the movable base are extendable at both ends, so that the guide beam and the legs of the movable base are alternately extended and retracted, and both are moved relatively. By doing so, the device is moved in the tunnel direction. Since the reinforcing bar lifter is provided at the end of the guide beam, the reinforcing bar can be easily lifted onto the guide beam. By changing the curvature of each distribution muscle gauge, the tunnel cross section can be changed and
It is possible to accommodate multiple arrangements. Further, by providing both ends of each distribution bar gauge so as to be bendable, it becomes easy to connect the next reinforcing bar to the reinforcing bar already arranged on the inner wall surface of the tunnel.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing an embodiment of a reinforcing bar assembling / rearranging apparatus of the present invention. Reference numeral 1 in the figure denotes a guide beam extending in the direction of the tunnel 2 and, as shown in FIGS. 2 to 5, is configured by appropriately combining H-shaped steel and the like so as to form a rectangular frame on the end face, and is attached and contracted at both ends. It is provided so that it can be supported at the axial center of the tunnel 2 by means of possible legs 3. Leg 3
Is a vertical lift cylinder 3 mounted on both sides of the end.
a, a horizontal connecting member 3b connecting the lower ends of the piston rods of the lift cylinders 3a on both sides, and a horizontal adjustment member 3b placed on the floor surface of the tunnel 2 with a height adjusting block 3c interposed therebetween. The tunnel 2 includes a crescent-shaped guide base 3d movably mounted in the lateral direction (horizontal direction in FIG. 4) and a lateral feed cylinder 3e that laterally feeds the connecting member 3b. Guide beam 1
In order to prevent the guide beam 1 from swinging in the lateral direction, a steady-state jack 4 is horizontally projected at both upper ends of both ends of the spacer, and a spacer contacting the inner wall surface of the tunnel is provided at the tip thereof. The block 4a is attached. Further, at the front end portion (right end portion in FIG. 1) of the guide beam 1,
As will be described later, a reinforcing bar lifter 5 for raising the bundle-shaped reinforcing bar above the guide beam 1 is provided. Rebar lifter 5
Is a vertical guide rail 5a attached to the front end of the guide beam 1, a lift base 5c mounted on the guide rail 5a via rollers 5b so as to be lifted, and a guide rail 5
A motor 5d that drives a sprocket (not shown) that meshes with the chain laid on a to raise and lower the lift base 5c.
And other members. Further, on the upper surface of the guide beam 1, a two-strand chain 6 forming a part of a moving device that relatively moves the guide beam 1 and a moving base described later in the direction of the tunnel 2 is provided over substantially the entire length thereof. Have been laid. Each chain 6 is housed in a channel-shaped chain guide 6a and has a take-up 6
It is stretched by b.

As shown in FIGS. 2 to 5, a movable mount 7 having a length about half that of the guide beam 1 is fitted to the outer periphery of the guide beam 1 so as to be movable in the longitudinal direction. Similar to the guide beam 1, the movable gantry 7 is appropriately made larger than the guide beam 1 by appropriately combining H-shaped steel or the like so as to form an end face rectangular frame shape. Rollers 8a and 8b are provided on the outside of each corner of the guide beam 1 so as to be rotatable. The movable base 7 is composed of triangular sprockets meshing with the chains 6 and a motor for driving the sprockets, and is provided so as to be movable in the longitudinal direction by a moving device 9 mounted on the rear end portion thereof. ing. At both ends of the movable base 7, extendable legs 10 similar to the legs 3 of the guide beam 1 are attached. Therefore, the guide beam 1
The movable base 7 and the movable base 7 are moved in the direction of the tunnel 2 by alternately extending and contracting the legs 3 and 10 and moving the both relatively by the moving device 9.

As shown in FIGS. 2, 3, 5, and 6, circular guide rings 11 made of H-shaped steel are provided on the outer circumferences of both ends of the movable gantry 7, the guide beam 1 and the movable gantry 7, respectively. It is installed coaxially with. On the outer circumference of each guide ring 11, a chain guide 12 having an end ring made of a channel material is mounted to accommodate a chain to be described later, and a take-up 13 for tensioning the chain is mounted on the end of the chain guide 12. Has been. Each guide ring 1
As shown in FIGS. 7 to 11, in FIG. 1, a revolving frame 14 having an inverted U-shape in a front view has rollers 15 mounted on both sides of both ends thereof rotatably engaged with the side surface of the guide ring 11. As a result, it is provided so as to be rotatable along the guide ring 11. The revolving frame 14 is stretched between the take-ups 13 and accommodated in the chain guide 12, and a triangular sprocket 17 engaged with the chain 16 and mounted on the revolving frame 14.
And a motor 18 for driving the sprocket 17 so as to be rotatable.
An upper end portion of a guide pipe 21 slidably accommodating a rectangular tubular slide pipe 20 is mounted on the back surface of both ends of the revolving frame 14, and one (right side in FIG. 8) guide pipe 21 is , And is pivotally attached by a pin 22 in the tunnel direction in order to absorb and mitigate rattling due to manufacturing errors. Each slide pipe 20 is moved forward and backward with respect to the inner wall surface of the tunnel 2 by a gauge lift cylinder 23 in which a cylinder body 23a is pivotally attached to the guide pipe 21 and a tip end of a piston rod 23b is pivotally attached to the slide pipe 20. It is possible.

As shown in FIGS. 7 and 12 to 16, the slide pipes 20 at both ends of the two swivel frames 14 support a large number of force distribution muscles, which will be described later, at required positions, and each of the gauge lift cylinders 23. A force distribution muscle gauge 24 that is moved forwards and backwards with respect to the inner wall surface of the tunnel 2 is attached.
That is, the force distribution muscle gauge 24 is formed in an arc shape having a length of about ⅓ of the inner wall surface of the tunnel 2, and two pieces are arranged at the same distance as the distance between the two swivel frames 14. , A total of four pieces, which are arranged approximately in the middle of these and joined close to each other, are connected by four connecting rods 25 in the tunnel direction, and each of them is turned through the two pieces at both ends. Each slide pipe 20 of the frame 14
Both ends are pivotally attached to the tip. Each of the force distribution muscle gauges 24 has a pin 2 at an intermediate portion so that its curvature can be changed.
6, and the vicinity of the connecting portion with the pin 26 in between is connected by a curvature changing cylinder 27 arranged on the side of the center of curvature.
On the upper side in FIG. 15, a large number of reinforcing bar setting grooves 24a for supporting the distribution muscles 28 (see FIG. 16) are provided by cutting out in the moving direction of the slide pipe 20.
Further, in order to facilitate the connection of the next reinforcing bar to the existing reinforcing bar, each of the distribution bar gauges 24 is connected at both ends to the curvature center (tunnel center) side by a pin 29, and the pin 29 is The vicinity of the connecting portion between them is connected by a folding cylinder 30 arranged on the curvature center side.

On the other hand, a large number of main bars, which will be described later, are supported at required positions between the adjacent distribution muscle gauges 24 at both ends of each distribution muscle gauge 24, and are reinforcing bar supporting portions of the distribution muscle gauge 24. A main bar gauge 31 is installed that moves forward and backward with respect to the reinforcing bar setting groove 24a. That is, the main muscle gauge 3
1 is composed of four T-shaped steels having a length about the same as the distance between the end force distribution muscle gauge 24 and the intermediate force distribution muscle gauge 24 facing the end portion. Web
It is provided so as to be movable in the same direction as the movement direction of the force distribution muscle gauges 24 by engaging with guide members 32 attached to the facing surfaces of the adjacent force distribution muscle gauges 24 at both ends of each force distribution muscle gauge 24. At the edge of the web of each main bar gauge 31, a large number of reinforcing bar setting grooves 31a for supporting the main bar 33 (see FIG. 16) are cut out in the moving direction of the slide pipe 20. On the other hand, each guide member 32
2 on the outside and in the middle of the force distribution gauges 24 on both ends corresponding to
A bracket 34 is attached between the distribution muscle gauges 24, and the cylinder body 3 of the main muscle set cylinder 35 that moves the main muscle gauge 31 is attached to the bracket 34.
5a is pivotally attached, and its piston rod 35b is pivotally attached to the main bar gauge 31.

In FIG. 1, reference numeral 36 denotes a control panel mounted on the rear end portion of the guide beam 1 for controlling a hydraulic unit 37 and the like mounted in the vicinity thereof. 38 is a hydraulic unit 3
A hose reel around which a hydraulic hose for supplying the pressure oil supplied from 7 to the lift cylinder 3a of the leg 3 is wound, and 39 is a control panel mounted on the rear end of the movable base 7. Further, in FIG. 7, reference numeral 40 denotes a cable reel mounted on the movable mount 7, on which a cable connected to the swivel device 19 via a plurality of cables / hose guide rollers 41 mounted on the guide ring 11 is wound. Similarly, is a hose reel mounted on the moving base 7, and a hydraulic hose for supplying pressure oil to the gauge lift cylinder 23 and the like via the cable / hose guide roller 41 is wound around the hose reel. Reference numeral 43 denotes a plurality of cables / hose guide rollers mounted on the guide beam 1 for guiding a hose or the like fed from the hose reel 38 of the guide beam 1, and 44 denotes a foldable scaffolding 45 mounted on the movable mount 7. It is a scaffolding telescopic cylinder that telescopes.

In order to assemble the reinforcing bars by using the reinforcing bar assembling / arranging device having the above-mentioned structure and to arrange the reinforcing bars on the inner wall surface of the tunnel 2, first, as shown in FIG. 1, the guide beam 1 is moved to the construction position. After extending the steady rest jacks 4 to steady the guide beam 1, the bundle-shaped reinforcing bars (not shown) serving as the force distribution bars 28 and the main bars 33 are placed on the lift base 5c of the reinforcing bar lifter 5. ), And the lift base 5c is lifted to lift the reinforcing bar above the guide beam 1. Next, after moving the movable gantry 7 forward by the moving device 9 as much as possible, the turning frame 19 is turned by the turning device 19 so that the force distribution muscle gauge 24 is positioned at the top as shown in FIG. , The gauge lift cylinder 23 is contracted to lower the distribution muscle gauge 24 to the maximum, and the main bar set cylinder 35 is contracted to lower the main bar gauge 31 to the maximum, and further the scaffold telescopic cylinder 44 is extended to operate the scaffold. Extend 45.

Next, the bundle-shaped rebar serving as the main bar 33 is placed on the front end portion of the main bar gauge 31, and the bundle-shaped rebar serving as the force distribution bar 28 is placed on the center part of the force bar 24.
The binding is released, and the distribution muscles 28 are set one by one across the total distribution muscle gauge 24 and set in the reinforcing bar setting groove 24a. After the setting of the distribution muscles 28 is completed, the gauge lift cylinder 23 is extended and the distribution muscle gauges 24 are raised to a position where an operator can put them below, and then the bundle-shaped reinforcing bars that will become the main muscles 33 are unwound. One set 33 is set over the main bar gauges 31 on both sides and set in the reinforcing bar setting groove 31a. After the setting of the force distribution muscles 28 and the main muscles 33 is completed, the main muscle set cylinder 35 is extended to bring the main muscles 33 into contact with the force distribution muscles 28, and then the contact points between the main muscles 33 and the force distribution muscles 28 are changed. Band together.

Then, in order to facilitate connection with mesh-shaped reinforcing bars already laid on the inner wall surface of the tunnel 2 (so that mutual wrapping is easy), the folding cylinder 3
After 0 is contracted to bend both ends of the force distribution muscle gauge 24 toward the center of curvature, the moving base 7 is moved to the reinforcement position in the tunnel direction by the operation of the moving device 9. The movement of the movable gantry 7 to the bar arrangement position is performed by using the bundle-shaped reinforcing bar 31 as the main bar gauge 31.
Alternatively, it may be carried out after placing on the distribution muscle gauge 24. Next, by operating the turning device 19, after turning the turning frame 14 together with the gauges 24, 31 and the mesh-shaped reinforcing bars to the circumferential bar arrangement position on the inner wall surface of the tunnel 2, the amount of expansion and contraction of the gauge lift cylinder 23. Adjust the mesh-shaped rebar to the regular construction position (cross section), fix it to the anchor bolt on the inner wall surface of the tunnel 2, and connect it to the existing mesh-shaped rebar.

Next, when the gauge lift cylinder 23 is contracted, each gauge 24,
When 31 is separated and the revolving device 19 revolves the revolving frame 14 upward and the moving device 9 moves the moving gantry 7 forward as much as possible, the initial state is restored, and the same operation is repeated thereafter. Assembling and arranging mesh-shaped rebar. Then, when the reinforcement of the entire circumference of the inner wall surface of the tunnel 2 at the predetermined position is completed, the legs 1 of the movable mount 7 are
0 is extended and grounded on the bottom surface of the tunnel 2, and then the legs 3 of the guide beam 1 are contracted to be separated from the bottom surface of the tunnel 2, and thereafter, the guide beam 1 is moved by the moving device 9.
To move forward.

In the above embodiment, the case where the reinforcing bar lifter 5 is attached to the front end portion of the guide beam 1 has been described, but the present invention is not limited to this, and it may be attached to the rear end portion of the guide beam 1. You may In addition, the guide beams 1 and the movable base 7 are respectively extendable / contractible legs 3, 1
0 is provided and the device is moved in the tunnel direction by the moving device 9, but the present invention is not limited to this. For example, only the guide beam 1 is provided with a leg, and the tunnel is attached via a wheel attached to the lower end of the leg. You may make it run on the rail laid inside 2. Further, the guide beam 1 and the movable mount 7 are not limited to the case of being provided in the shape of the end face square frame, but may be formed in the form of an end face pentagon or hexagon.

[0017]

As described above, according to the rebar assembling / rearranging device of the present invention, the rebar can be assembled on the gauge of the moving base, and the assembled mesh-shaped rebar is provided in the tunnel. Since it is possible to move to the required position on the wall,
It is not necessary to manually assemble and rebar the mesh-shaped rebars on the inner wall surface of the tunnel as in the conventional case, and it is possible to assemble the rebars, facilitate the rebar work, and reduce labor and labor. Since the guide beam and the movable base are provided with extendable legs, the legs are alternately extended and retracted, and the moving device relatively moves the two to move the device in the tunnel direction. be able to. Further, since the reinforcing bar lifter is provided at the end of the guide beam, the reinforcing bar can be easily lifted up on the guide beam, so that the labor of assembling the reinforcing bar and the reinforcing work can be further reduced. . Since the curvature of each distribution muscle gauge can be changed, it is possible to cope with the change of the tunnel cross section and the double arrangement of the reinforcing bars, so that more complicated work can be handled. Further, by providing both end portions of each distribution bar gauge so as to be bendable, it is possible to easily connect the next reinforcing bar to the reinforcing bar already arranged on the inner wall surface of the tunnel.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a reinforcing bar assembling / rearranging device of the present invention.

FIG. 2 is a side view showing a combined state of a guide beam and a movable mount in the device shown in FIG.

FIG. 3 is a plan view with a part of FIG. 2 omitted.

FIG. 4 is a composite cross-sectional view of the IV-IV line half-section and the IV′-IV ′ line half-section in FIG. 1.

5 is a sectional view taken along line VV in FIG.

6 is a sectional view taken along line VI-VI in FIG.

7 is a sectional view taken along line VII-VII in FIG.

8 is a front view showing a combined state of a guide ring and a turning frame in the device shown in FIG.

9 is a plan view of FIG. 8. FIG.

FIG. 10 is a left side view of FIG.

11 is a sectional view taken along line XI-XI in FIG.

FIG. 12 is a plan view showing a combined state of a distribution muscle gauge and a main muscle gauge in the device shown in FIG.

13 is a sectional view taken along line XIII-XIII in FIG.

14 is a sectional view taken along line XIV-XIV in FIG.

15 is a sectional view taken along line XV-XV in FIG.

16 is an enlarged view of an XVI portion of FIG.

FIG. 17 is an explanatory view of the operation of the apparatus shown in FIG.

FIG. 18 is an explanatory diagram of conventional rebar assembling and bar arrangement work.

[Explanation of symbols]

 1 guide beam 2 tunnel 3 legs 3a lift cylinder 3d guide base 5 rebar lifter 5c lift platform 5d motor 7 moving platform 9 moving device 10 leg 11 guide ring 14 swivel frame 19 swivel device 23 gauge lift cylinder 24 force bar gauge 24a reinforcing bar set Groove 26 Pin 27 Curvature changing cylinder 28 Power distribution bar 29 Pin 30 Folding cylinder 31 Main bar gauge 31a Reinforcing bar set groove 33 Main bar 35 Main bar setting cylinder

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Koji Iwata 144 Shijo-cho, Motomasu-gun, Gifu 144 Gifu Industry Co., Ltd. Incorporated (72) Inventor Katsuya Sato 4-12-20 Nihonbashihonmachi, Chuo-ku, Tokyo Sato Industry Co., Ltd.

Claims (5)

[Claims] 1. A guide beam that extends in the tunnel direction and is supported by the legs at both ends on the tunnel axis, and has a length that is about half the length of the guide beam, and is fitted to the outer periphery thereof so as to be movable in the longitudinal direction. The movable pedestal, a circular guide ring attached to the outer periphery of both ends of the movable pedestal, and a swing frame attached to both guide rings so as to be rotatable along the outer periphery thereof,
It is provided to be able to move back and forth on the inner wall surface of the tunnel via gauge lift cylinders attached to both revolving frames, has an arc shape with a length of about 1/3 of the inner wall surface of the tunnel, and requires a large number of force distribution muscles. It is arranged between the force gauge that supports the position and both gauges at both ends of both force gauges, and moves back and forth to the reinforcing bar support section of the force gauge through the main muscle set cylinder attached to each force gauge. A reinforcing bar assembling / rearranging device, which is provided so as to be capable of supporting a large number of main bars at required positions. 2. The reinforcing bar assembling / rearranging device according to claim 1, wherein the leg of the guide beam is extendable and retractable, and the extendable leg is provided at both ends of the movable base. . 3. The reinforcing bar assembling / rearranging apparatus according to claim 1, wherein the guide beam is provided with a reinforcing bar lifter for raising the reinforcing bar above the guide beam at an end thereof. 4. The reinforcing bar assembling / rearranging apparatus according to claim 1, 2 or 3, wherein each of the force distribution bar gauges is provided so that its curvature can be changed. 5. The reinforcing bar assembling / rearranging according to claim 1, wherein both ends of each distribution bar gauge are provided so as to be bendable toward the center of curvature. apparatus.