JP2002097799A - Demolition method of existing structure and demolition device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a demolition method and a demolition device capable of demolishing only an existing structure although an obstacle is installed above the existing construction. SOLUTION: The demolition device includes a balance-shaped crushing device 10 hanging a crusher 13 and a weight 15 on both sides of a support member 11. At the center of the support member 11, a wire 3 hung from the boom end of a truck crane is connected via a hook member 7 and a connecting wire 8. A hydraulic hose 16 connected to a cylinder for opening/closing the claw part 13a of the crasher 13 is extended upward along the wire 3, turned back at the boom end, and runs along the boom down to the hydraulic pump placed on the ground, and is piped. Furthermore, the hydraulic hose 16 is clamped by a plurality of clampers 20 at a position extended along the hydraulic hose 3, and is bundled together in a way of being wound round between clampers 20, 20 when the wire 3 is rolled upward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for dismantling a general existing structure such as an existing building or an existing facility, and more particularly to a method for disposing an obstacle near an upper part of the existing structure. The present invention also relates to a dismantling method and a dismantling method for dismantling an existing structure by movably avoiding an obstacle.

[0002]

2. Description of the Related Art Conventionally, an apparatus for dismantling an existing structure has a movable vehicle body and a telescopic boom installed above the vehicle body, especially when dismantling a structure located at a high place. In addition, the existing structure is dismantled while moving the crushing device disposed at the end of the boom in the front-rear direction, the left-right direction, or the up-down direction. For example, as shown in FIG. 8, a dismantling machine 30 disclosed in Japanese Patent Application Laid-Open No. Hei 5-195635 includes a traveling vehicle body 31, a revolving frame 32 pivotally mounted on the vehicle body 31, and a revolving frame 32. It has a main boom body 33 composed of a plurality of booms rotatably and telescopically arranged, a telescopic cylinder 34 for expanding and contracting each boom, and a crushing device 35 attached to the tip of the main boom body 33. By operating the operating rod 36 constituting the crushing device 35 with the link member 37 and the rotary cylinder 38, the existing structure 40 is dismantled by hitting the frame.

[0003]

However, in the conventional dismantling machine 30, for example, when a structure having a length of 40 m or more is dismantled, the main boom body 33 composed of a telescopic boom cannot be used.
There is a limit to the dismantling work itself, and it cannot be used. Even if the structure is 40 m or less, for example, an obstacle that cannot be dismantled is installed around or near the existing structure 40 to be dismantled. In such a case, it is extremely difficult to move the crushing device 35 attached to the tip of the main boom body 33 without interfering with obstacles.

For example, in the case where the existing structure 40 is a high-rise silo of 40 m or more for storing grain, it cannot be used without reaching from the ground with the telescopic structure of the main boom 33 of the conventional dismantling machine 30. Since then, a hanging type dismantling device which suspends a crusher by suspending a wire at the tip of a crane has been used. However, if the conveyor that supplies grain in the silo is further installed above the silo and it is not possible to disassemble part of the silo and disassemble the upper conveyor, the silo body part located immediately below the conveyor However, since the crusher cannot move and cannot be dismantled, it is necessary to remove or disassemble the conveyor, which requires extra time and expense for dismantling work. Moreover, since the hydraulic hose connected to the crusher is piped from the ground, an extremely long hydraulic hose is required, which increases the weight and causes some of the hydraulic hoses located at high places to shake greatly due to wind. Crushing the crusher, which hinders the crushing operation of the crusher.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problem. In a high-rise structure, when an existing structure is dismantled in a state where an obstacle is installed near the existing structure to be dismantled, An object of the present invention is to provide a dismantling method and a dismantling device for an existing structure that can dismantle an existing structure without interfering with an obstacle and that can treat a hydraulic hose piped to a crusher so as not to adversely affect the dismantling work. I do.

[0006]

In the method of dismantling an existing structure according to the present invention, in order to solve the above-mentioned problems,
This is performed as follows. That is, a method of dismantling an existing structure in which a body of an existing structure is dismantled by a suspended crusher, the crusher for sequentially crushing the body of the existing structure, and approximately the same weight as the crusher. Weights are supported on both sides of a long support member suspended by a suspension member at a substantially central portion, respectively, to constitute a balance state, and the crusher is eccentric with the axis of the suspension member. At the position, the frame of the existing structure is sequentially dismantled.

[0007] Further, in the apparatus for dismantling an existing structure according to the present invention, the apparatus for dismantling a body of the existing structure using a suspended crusher is suspended at a substantially central portion. An elongated support member, the crusher supported on one side of the support member, and the crusher supported on the other side of the support member and substantially the same as the crusher with respect to the center of the support member. A crusher, which is arranged at a symmetrical position and has a weight substantially equal to the weight of the crusher, is suspended by a suspension member, and is configured as a balance.

Preferably, the crusher has a claw portion which is opened and closed by hydraulic pressure, a hydraulic hose connected to the claw portion is disposed along the suspension member, and the hydraulic hose is provided with a plurality of hydraulic hoses. It is more preferable that the hydraulic hose is wound between the clampers in a substantially arc shape when the suspension member is wound up by being clamped at the location by the clamper.

More preferably, if a wire for distributing and supporting the load of the hydraulic hose is arranged to be tensionable between the adjacent clampers, the load of the hydraulic hose can be dispersed and supported. Desirable.

The weight may be suspended so as to be adjustable in position along a longitudinal direction of the support member.

When the crushing machine grips the object to be dismantled, one end of a balance holding wire for holding the balance of the crushing device is hooked on the weight side of the support member. Is more preferred.

[0012]

According to the method of the present invention for dismantling an existing structure, the crusher is arranged at an eccentric position with respect to the suspended axis, and the crushing device is suspended. It is possible to move while avoiding obstacles by a distance eccentric to the axis. In other words, if the crushing device is suspended by, for example, a wire, the wire moves to a position where it interferes with the obstacle, so that the crushing device moves below the obstacle by a distance eccentric to the axis of the wire. Becomes possible. The weight of the crushing device can be balanced by providing a weight having substantially the same weight as the crushing device at a position substantially symmetrical to the crushing device with respect to the axis of the wire with respect to the eccentricity of the crushing device with respect to the wire axis. Thus, the existing structure can be dismantled at a position avoiding the obstacle.

Further, since the existing structure dismantling device of the present invention is configured as described above, the crusher for dismantling the existing structure is suspended by the suspension member and balances weight with the weight. While moving in the horizontal and vertical directions. If an obstacle is installed in the moving direction of the crusher, move the crusher configured in the balance state below the obstacle,
By moving the suspension member near the obstacle, the crusher can move around the obstacle,
It can be dismantled without leaving the existing structure to be dismantled. In addition, the crusher has a weight balance in the crusher in the balance state, so when crushing,
A stable dismantling operation can be performed without causing the support member to move.

Further, in this dismantling device, when the crushing device is raised, the suspension member is wound up. However, a hydraulic hose for opening and closing the claws of the crusher is clamped by a plurality of clampers along the suspension member. Therefore, when the suspension member is wound up, the hydraulic hose is wound in an arc between the clamped positions due to the approach between the clampers. Therefore, the plurality of hydraulic hoses wound in a substantially arc shape at each location are automatically bundled above the existing structure, so that the hydraulic hoses are not entangled with each other or the hydraulic hoses are brought into contact with the frame to be damaged.

Further, since the weight of the long hydraulic hose is distributed and supported by the wires arranged between the adjacent clampers, it is possible to prevent a state in which the hose is easily broken due to being supported at one point. be able to.

Further, since the weight is attached so as to be adjustable in the longitudinal direction of the support member, the weight can be adjusted by changing the position without changing the weight of the weight, and the existing structure can be balanced. Depending on the state, for example, the weight can be appropriately suspended at a position where the weight does not contact the skeleton of the existing structure.

Further, when the crusher grips the frame of the existing structure, the crusher loses the weight balance between the crusher and the weight, causing a state in which the crusher easily tilts. Since the balance wire with one end hooked on the end regulates the inclination of the crusher and maintains the weight balance between the crusher and the weight, the crusher stably crushes the body. be able to.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. The dismantling method and the dismantling device for an existing structure according to the present embodiment can be preferably used when an obstacle is installed above the existing structure because the obstacle can move around the obstacle.

As shown in FIG. 1, a dismantling apparatus 1 according to the embodiment
The existing structure 4 to be dismantled is, for example, in the case of a silo that is constructed on a high floor of about 60 m and stores grain, a conveyor 5 for supplying grain is installed as an obstacle above the silo 4. I have. When only a part of the silo 4 is dismantled without dismantling the conveyor 5, the dismantling device 1 includes a wire 3 connecting a crusher (hereinafter referred to as a crusher) 13.
Is suspended from the tip of the crane.

If the dismantling device 1 is configured such that the crusher 13 for crushing the body of the silo 4 so as to crush it and the wire 3 for suspending the crusher 13 are concentric, When the wire 3 is moved in the horizontal direction, the wire 3
In this embodiment, since the crusher 13 cannot be moved to a predetermined position due to interference with the wire 3, the wire 3 and the crusher 1
The silo 4 is arranged so as to be shifted from the position 3, so that the entire frame of the silo 4 can be crushed.

That is, the disassembly apparatus 1 of the present embodiment has the structure shown in FIGS.
As shown in FIG. 5, a crane truck 2 for suspending the wire 3 hooked at the tip of the boom 2a, and a long shape hooking the lower end of the wire 3 at a substantially central position via a hook member 7. And a crusher 13 and a weight 15 suspended on both sides of the support member 11 with the wire 3 interposed therebetween. Accordingly, the support member 11 and the crusher 13 and the weight 15 suspended on both sides of the support member 11 constitute the crusher 10 in a balance state. If the crusher 13 and the weight 15 have substantially the same weight and the distance from the center position of the support member 11 supported by the wire 3 is substantially the same, the balance is maintained and the support member 11 does not tilt.

As shown in FIG. 1, the crushing device 10 suspended by the crane truck 2 via the wire 3 is moved by the crane truck 2 so as to be located below the conveyor 5, or the boom 2a is tilted. Therefore, even if the wire 3 approaches the vicinity of the conveyor 5 without limit, the crusher 13 can be moved below the conveyor 5 by the distance from the axis of the wire 3 and the frame of the silo 4 immediately below the conveyor 5 can be moved. Can be dismantled.

As the crusher 13, a generally known crusher is used, and the crusher 13 implemented in the present embodiment is a device for gripping and crushing the frame of the silo 4 to be dismantled, and has a claw driven by hydraulic pressure. A portion 13a is provided. A cylinder for opening and closing the claw portion 13a is arranged in the crusher 13, and two hydraulic hoses 16 for driving the cylinder are arranged along the wire 3 from the crusher 13 via the support member 11. Further, the hydraulic hose 16 extends upward along the wire 3,
Boom 2a extending upward from crane truck 2
And is connected to a hydraulic pump (not shown) arranged on the ground.

As shown in FIG. 3, the hydraulic hose 16 extending along the wire 3 is clamped around the wire 3 by a plurality of clampers 20 passing through the wire 3. Further, distributed short wires 3 connecting adjacent clampers 20 are provided between the respective clampers 20.
a is arranged. The short wire 3a is in tension between the clampers 20 when the wire 3 is extended,
Hydraulic hose 16 clamped to each clamper 20
Is in a slack state. Therefore, by arranging the plurality of short wires 3a, the hydraulic hose 1 that is piped over a long distance is provided.
6 can be dispersed and supported by the short wires 3a.

As shown in FIGS. 4 and 5, the clamper 20 includes a shackle 21 through which the wire 3 is inserted, and clamp portions 22, 22 which are pivotally supported on both sides of the shackle 21 and can rotate around a shaft 23. The clamp portion 22 is formed in a ring shape so that the diameter thereof can be reduced, and is configured to be able to grip the respective hydraulic hoses 16. Further, one end of the short wire 3a is connected to the shackle 21.

More specifically, each of the clamp portions 22 includes a semi-ring-shaped fixing portion 24 rotatably disposed on the shackle 21 and a semi-ring-shaped fixing portion 24 formed to be openable and closable at one end of the fixing portion 24. And a movable section 25. When the hydraulic hose 16 is clamped, the movable portion 25 is fixed to the fixed portion 24 with a screw at the distal end.

As a result, when the wire 3 is wound up, the wire 3 is inserted through the shackle 21 of the clamper 20, and the hydraulic hoses 16 clamped by the clamps 22 are respectively moved as shown in FIG. Since the lower clamper 20 approaches the upper clamper 20, the clamper 20 is wound and bound in a substantially arc shape together with the short wire 3 a between the respective clampers 20. Since the wire 3 is wound upward and rises, and the hydraulic hose 16 is raised so as to be bundled, the hydraulic hose does not come into contact with the skeleton of the existing structure, and therefore there is no risk of being entangled or damaged.

As shown in FIG. 2, the support member 11 has a support portion 111 formed in a long shape by using an edge steel material for general structure such as an H-beam, an I-beam or a channel steel, and a lower portion. Crusher 13
And suspending portions 112, 113 for suspending the weight 15 and
At the upper center, a lower end of the wire 3 is hooked, and a chevron-shaped wire hooking portion 114 for reinforcing the support member 11 is formed. A plurality of (three in the illustrated example) suspension portions 113 for suspending the weight 15 are formed along the longitudinal direction of the support portion 111 so that the weight 15 can be suspended in a position-adjustable manner. .

When adjusting the position of the weight 15, for example, it is necessary to replace the crusher 13, and when it is not possible to prepare various weights of the weight 15, the weight 15 is adjusted according to the weight of the replaced crusher 13. The position of the crushing device 10 can be adjusted by suspending the crushing device 10 on any of the suspension portions 113, and the crushing device 10 can be balanced. If the position of the weight 15 interferes with the body to be dismantled, the weight of the weight 15 can be changed to change the position of the suspension 113.

The crusher 13 is suspended from a suspending portion 112 for suspending the crusher 13 via a chain (or a hanging wire) 17 having a predetermined length. The weight 15 is suspended from a suspending portion 113 via a suspending wire (which may be a chain) 18 having a predetermined length. Therefore, the length of the suspension wire 18 for suspending the weight 15 and the chain 17 for suspending the crusher 13 have a predetermined length depending on the existing structure 4 to be dismantled.

For example, the chain 1 for suspending the crusher 13
The length of the weight 7 is determined by the distance between the existing structure 4 and the obstacle 5, and the weight of the weight 15 is determined by the weight of the crusher 13. The length of the suspending wire 18 for suspending the weight 15 is determined so as not to interfere with the existing structure 4 arranged below, and the suspending portion 113 on which the suspending wire 18 is suspended is a weight. 15 is selected at a position that does not interfere with the existing structure 4, the selected suspending portion 113 is selected.
Is determined to be a weight that can be balanced with the weight of the crusher 13.

Since the crusher 13 is suspended by the chain 17, the crusher 13 easily twists when the crusher 13 itself moves or when the skeleton is dismantled. Two workers perform an interworking operation by pulling a rope connected to both ends of the crusher 13 and changing the direction of the crusher 13 to a position where the crusher 13 is gripped. However, since the weight of the crusher 13 is large,
Normal intervening work is difficult. Therefore, in the embodiment, a untwisting member (metal fitting in this embodiment) 25 is attached to the upper end of the chain 17 for suspending the crusher 13 so that the crusher 13 itself can be easily untwisted. . The untwisting member 25 is configured such that the bearing is interposed therein and the cylindrical member externally fitted to the bearing is rotatable with respect to the shaft part internally fitted to the bearing. This makes it possible to easily untwist the crusher 13. Of course, the configuration of untwisting of the crusher 13 is not limited to these, and for example, a turning motor that can automatically turn the crusher 13 may be mounted above the crusher 13. By mounting the swing motor, it is possible to eliminate the intervening work by the operator.

The wire hooking portion 114 has a reinforcing member 115 which rises from the support portion 111 so as to form a chevron for connection with the wire 3 for suspending the crushing device 10. At an upper end, a hook member 7 for fixing one end of the wire 3 via a connecting wire 8 is hooked. The other end of the balance holding wire 26 whose one end is hooked to the end of the support portion 111 on the weight 15 side is hooked to the hook member 7. When the crusher 13 grips the frame of the existing structure 4, the balance maintaining wire 26
Since the weight balance between the weight 3 and the weight 15 is lost, the crushing device 10 is arranged to prevent a state in which the crushing device 10 itself is inclined to one side and the crushing machine 13 cannot grip the skeleton. Thereby, the weight balance between the crusher 13 and the weight 15 can be maintained.

Further, the two hydraulic hoses 16 are fixed to the wire hooking portion 114 with a stop member so as to crawl along the side surface of the wire hooking portion 114, and the oil is used when the crusher 13 is replaced. Stop valve 28 for leak prevention
Is being relayed.

Next, a method of dismantling an existing structure using the dismantling apparatus having the above-described structure will be described.

First, after confirming the position of the obstacle in the existing structure to be dismantled, the type and size of the crusher 13 are determined.
The position of the crusher 13 and the weight 15 or the distance from the support member 11 of the crusher 13 (the length of the chain, the length of the wire for suspending the weight 15) is determined, and the crusher 10 is assembled.

Next, the crushing device 10 is suspended by the crane truck 2, and the crushing device 10 is moved between the silo 4 as an existing structure and the conveyor 5 as an obstacle. Crushing device 1
In order to move 0 as instructed, the instructor who instructs near the demolition site and the operator who operates the crushing device 10 in the crane truck 2 perform the communication by wireless and wired communication.

In a position where the skeleton of the existing structure 4 does not interfere with the obstacle 5 of the crusher 13, the suspended wire 3 is lowered as it is, and the crusher 10 is moved down to the skeleton of the silo 4. . Since the crushing device 10 is balanced (balanced) between the crushing device 13 and the weight 15, the supporting member 11 of the crushing device 10 can be moved from the hook member 7 formed at the lower end of the wire 3 without vibrating up and down. The crushing device 10 can be easily untwisted by the balance holding wire 26 hooked at one end of the hydraulic hose 16, and the hydraulic hose 16 is connected to each clamper 20 by the clamper 20 when the wire 3 is wound up. Since it is wound between the 20, the hydraulic hose 16 does not come into contact with the skeleton and does not get tangled. In addition, hydraulic hose 1
6 is supported by a plurality of short wires 3a, so that the load of the hydraulic hose 16 is not dispersed and the hydraulic hose 16 is not damaged by applying a load to a part thereof.

When the crusher 13 dismantles the frame of the silo 4, if the claw portion 13a of the crusher 13 is at a position where it can grip the frame, the hydraulic pressure supplied from the hydraulic pump through the hydraulic hose 16 is The claws 13a are actuated in the frame gripping direction to sequentially disassemble the frame. At this time, the interworking operation is easily performed by the untwisting member 25 disposed above the chain 17, and the crushing device 1 is
The crusher 13 is operated so as to prevent the inclination of 0 and prevent the crusher 13 from being dismantled. In this operation, the operator performs a wireless or wired remote operation of the electromagnetic valve in accordance with a visual instruction of the instructor.

Next, when the dismantling portion of the silo 4 is sequentially moved, the wire 3 comes closer to the obstacle 5, but the crusher 13 moves the wire 3 in the horizontal direction by the distance between the wire 3 and the axis. Therefore, the wire 3 is moved in the lateral direction as it is. When the wire 3 moves to a position where the wire 3 interferes with the obstacle 5, the crushing device 13 is displaced to a position where the wire 3 does not interfere with the obstacle 5, and then the crushing device 10 moves the conveyor 5 while winding the wire 3 upward. When the wire 3 reaches the position above, it moves over the conveyor 5 and moves to the next dismantling site, and lowers the wire 3.

As described above, in the method of dismantling an existing structure according to the present embodiment, the crusher 13 is configured to be disposed at an eccentric position with respect to the suspended axis. Can move around the conveyor 5 by an amount eccentric with respect to the suspended axis. That is, the crusher 13
However, for example, if the wire 3 is suspended by the wire 3, the wire 3 moves to a position where the wire 3 interferes with the conveyor 5, so that the crusher 13 moves below the conveyor 5 by a distance eccentric to the axis of the wire 3. Becomes possible. The eccentricity of the crusher 13 with respect to the wire 3 is determined by providing a weight 15 having substantially the same weight as the crusher 13 at a position substantially symmetrical to the crusher 13 with respect to the axis of the wire 3. The balance can be maintained, and the frame of the silo 4 can be dismantled at a position avoiding the conveyor 5.

Further, the dismantling apparatus 1 for an existing structure according to the embodiment
Is constructed by mounting the crusher 13 and the weight 15 in a balance shape, so that the crusher 13
Is horizontally and vertically moved while being suspended by the wire 3 and being balanced by the weight 15. When the conveyor 5 is installed in the moving direction of the crusher 13, the crusher 10 configured in a balance state is moved below the conveyor 5, and the suspension member 10 is moved to the vicinity of the conveyor 5. Since the crusher 13 can move around the conveyor 5, the crusher 13 can be dismantled without leaving the frame of the silo 4 to be dismantled. Moreover, since the crushing machine 13 is balanced by the weight 15 in the crushing machine 10 in the balance state, the crushing machine 13 can perform a stable dismantling operation without dispersion when crushing.

The dismantling device 1 winds up the wire 3 when the crushing device 10 is raised.
Since the hydraulic hose 16 for opening and closing the claw portion 13a of the crusher 13 is clamped by the plurality of clampers 20 along the wire 3, when the wire 3 is wound up,
The approach between the clampers 20, 20 causes the hydraulic hose 16 to be wound in an arc between the clamped positions. Therefore, the hydraulic hoses 16 wound in a plurality of arcs at each location are automatically bundled above the silo 4, and the hydraulic hoses 16 are entangled with each other and the hydraulic hoses 16 are brought into contact with the frame to be damaged. There is no.

Further, since the hydraulic hose 16 has its weight dispersed and supported by the plurality of short wires 3a, it is possible to prevent the hydraulic hose 16 from being damaged by supporting the hydraulic hose 16 at one point.

Further, since the weight 15 is attached so as to be adjustable in the longitudinal direction of the support member 11, the crusher 1
When replacing the weight 3, it is possible to balance the weight 15 by changing its position without changing the weight, and depending on the state of the silo 4, for example, suspend the weight 15 appropriately at a position where the weight 15 does not interfere with the silo 4. can do.

Further, the inclination of the crushing device 10 which is caused when the crushing machine 13 is gripped by the frame of the silo 4 is because the weight balance between the crushing machine 13 and the weight 15 is maintained by the balance holding wire 16. , Can be prevented.

The dismantling device of the present embodiment is not limited to the above-described embodiment as long as it has a crushing device in the form of a balance so that it can move while avoiding the obstacle when there is an obstacle above the existing structure. It does not do.

For example, if the connecting wire 8 is hooked on the upper portion of the support member 11 at the wire hooking portion 114 formed on the upper surface of the support member 11, as shown in FIG. May be formed on the lower surface side of the support member 11. In this case, a portion that interferes with the obstacle can be eliminated, and the crushing device 10 can be moved over a wider range.

The crushing machine 13 is determined by the configuration and shape of the existing structure to be dismantled, and is constituted by a hammer or the like that is dismantled by an impact even if it does not hold the frame to be dismantled. Is also good.

If the hydraulic pump is suspended just above the crushing device 10, the length of the long hydraulic hose 16 that is folded from the ground at the tip of the zoom 2a of the crane truck 2 and reaches the crusher 13 is extremely short. And use less hydraulic oil.

[Brief description of the drawings]

FIG. 1 is an overall front view showing a dismantling device according to one embodiment of the present invention.

FIG. 2 is an enlarged view of a main part showing the crushing device in FIG.

FIG. 3 is a view showing the hydraulic hose in a state where a wire in FIG. 1 is extended.

FIG. 4 is a plan view showing a clamper for clamping a hydraulic hose.

FIG. 5 is a view showing a longitudinal section of the clamper in FIG. 4;

6 is a view showing the hydraulic hose in a state where the wire in FIG. 3 is wound up.

FIG. 7 is an enlarged view of a main part showing another embodiment of the crushing device.

FIG. 8 is a schematic front view showing a conventional existing structure dismantling machine.

[Description of Signs] 1 ... Dismantling device 3 ... Wire (suspension member) 3a ... Short wire 4 ... Existing structure 5 ... Obstacle 10 ... Crushing device 11 ... Support member 13 ... Crusher 15 ... Weight 16 ... Hydraulic hose 17 ... Chain 20 ... Clamper 25 ... Rewind member 26 ... Balance holding wire 28 ... Stop valve

Claims (6)

[Claims] 1. A method for dismantling a structure of an existing structure using a suspended crusher, wherein the crusher for sequentially crushing the structure of the existing structure;
A weight having substantially the same weight as the crusher is supported on both sides of a long support member suspended by a suspension member at a substantially central portion, and constitutes a balance state. At a position eccentric with the axis of the suspension member,
A method for dismantling an existing structure, comprising sequentially disassembling the frame of the existing structure. 2. A dismantling device for an existing structure, which dismantles a skeleton of the existing structure by a suspended crusher, comprising: a long support member suspended at a substantially central portion; The crusher supported on one side and the crusher supported on the other side of the support member and arranged substantially symmetrically with the crusher with respect to the center of the support member. A dismantling device for an existing structure, wherein a crushing device having a weight and a weighing device configured in a balance state is suspended by a suspension member. 3. The crusher has a claw that opens and closes with hydraulic pressure, a hydraulic hose connected to the claw is provided along the suspension member, and the hydraulic hose is provided at a plurality of locations. 3. The existing structure according to claim 2, wherein the hydraulic hose is configured to be wound in a substantially arc shape between the clampers when the suspension member is wound up by being clamped by the clamper. Demolition device. 4. The disassembly apparatus for an existing structure according to claim 3, wherein a wire for dispersing and supporting the weight of the hydraulic hose is arranged between the adjacent clampers so as to be tensionable. . 5. The dismantling device for an existing structure according to claim 2, wherein the weight is suspended so as to be adjustable in position along a longitudinal direction of the support member. 6. When the crusher grips an object to be dismantled, one end of a balance holding wire for holding the balance of the crushing device is hooked on the weight side of the support member. An apparatus for dismantling an existing structure according to claim 2.