JPH07107333B2 - Building demolition method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method of dismantling a building in which constituent members of the building are cut and separated and moved to the ground.

<Prior art> The conventional method of dismantling a building is to first assemble a scaffold for dismantling in the vicinity of the building, and then an operator climbs onto this scaffold and gas-cuts the building components to separate and cut them from the building. After that, the above-mentioned components are dropped as they are on the ground.

<Problems to be Solved by the Invention> However, the above-described conventional method of dismantling a building has a problem that when a separated component member is dropped, vibration, noise, and dust are generated due to the impact of the drop. In addition, it takes time and labor to provide a scaffold for dismantling, and since the work is performed at a high place on the scaffold, there is a risk that the worker loses balance and falls.

Therefore, an object of the present invention is to provide a method of dismantling a building which is vibration-free, noise-free, dust-free, and which does not require a scaffold for dismantling and can be safely operated.

<Means for Solving the Problem> In order to achieve the above object, the method of demolishing a building according to the present invention is such that the constituent members of the building are gripped by a gripping device that is opened and closed by an opening / closing cylinder operated by remote control. While suspending this gripping device with a crane, a suspended platform, a power mechanism provided on the platform and operated by remote control, and a swingable attachment to the platform below the platform are provided. A crane is equipped with a scissor-like cutter that performs a turning and cutting operation with a power mechanism, and a lifting cylinder that is mounted between the lower surface of the table and the cutter and that is operated by the power mechanism to raise and lower the cutter. It is characterized in that it is suspended by, and after this component is cut and separated from the building by this cutting device, it is moved to the ground by a crane with this component held by the holding device. It

In addition, it is desirable that the constituent members be held and suspended by a plurality of the holding devices at a plurality of locations.

<Operation> Since the cutting device separates the cut and separated components without dropping them, the gripping device holds them and suspends them with a crane to move them to the ground. Will not occur. Also,
Since the worker does not directly cut and separate, it is not necessary to provide a special scaffold, and since the worker does not work at a high place, there is no risk of the worker falling.

Further, since the gripping device is opened / closed by the opening / closing cylinder operated by remote control, the constituent members of the building are quickly and reliably gripped by remote control. In addition, the scissors-like cutter of the cutting device, by a power mechanism operated by remote control,
It is swiveled with respect to the suspended base and lifted up via a depression cylinder to quickly set an optimal angle with respect to the above-mentioned components. Since the cutting operation is performed in this state, the constituent members are efficiently cut from the optimum direction. As a result of these, the demolition of the building can be performed quickly and efficiently by remote control.

Further, when the above-mentioned constituent member is gripped and suspended by the gripping device at a plurality of positions, the possibility of dropping the constituent member when moving the constituent member to the ground is less than that when the constituent member is gripped and suspended at one position. Therefore, it becomes possible to work more safely and reliably.

<Example> Hereinafter, the method for demolishing a building according to the present invention will be described in detail with reference to the illustrated example.

First, the cutting device and the gripping device used in the present invention will be described in order.

As shown in FIGS. 2 and 3, this cutting device 5 has an engine 22, a hydraulic pump 26, a hydraulic motor 27, an engine-equipped generator 31, and a radio control device 32 mounted on a table 21 which also serves as an oil tank. . The engine 22 and the hydraulic pump 26 are arranged coaxially, and the rotational force of the engine is transmitted to the hydraulic pump 26 via the reduction gear device 23. The hydraulic pump 26 and the hydraulic motor 27 are connected by a hydraulic pipe (not shown). The engine-equipped generator 31 supplies electric power to a radio control device 32 having an antenna 33, a television camera 7 described later, and the like. The table 21 is suspended from the crane 2 by a rope 6 connected to a suspension ring. A swing frame 34 is attached to the lower end of a main shaft 35 provided on the table 21. The main shaft 35 can be rotated by a hydraulic motor 27 via bevel gears 37 and 38 so as to freely rotate forward and backward. Swivel frame 34 above
A first bracket 41 is fixed to the center of the. This first
An upper end of an L-shaped second bracket 43 is rotatably connected to a lower end of the bracket 41 via a pin 42. This first
Both ends of the elevation hydraulic cylinder 47 are connected to the left end of the bracket 41 and the right end of the second bracket 43 via pins 45 and 46. This hydraulic cylinder 47 for elevation is expanded and contracted to
The bracket 43 can be raised and lowered freely. The main body 52 of the cutter device 51 is fixed to the lower end of the second bracket 43. Scissors-shaped cutters 55, 56 are attached to the main body 52 at substantially the center thereof via pins 53, 54 so as to be rotatable.
To the upper ends of the cutters 55 and 56, the rods at the tips of the hydraulic cylinders 61 and 62, which are pin-connected to the main body 52, are pin-connected so that the cutters 55 and 56 can perform a cutting operation as shown by an arrow X. . Therefore, the cutter device 51 can be rotated about the vertical axis as shown by the arrow Y by rotating the revolving frame 34 by the hydraulic motor 27, and
The arrow Z is activated by operating the depression hydraulic cylinder 47.
The desired cutting position can be freely lifted as shown in FIG. 2 and the hydraulic cylinders 61 and 62 are operated in that state to perform the cutting operation as shown by the arrow X.
The hydraulic cylinders 61, 62 and the elevation hydraulic cylinder 47 are connected to the hydraulic pump 26 by hydraulic piping (not shown). In order to monitor the cutter device 51, the television camera 7 is provided at a portion protruding downward from the end of the revolving frame 34.
Is attached. In addition, the boom 3 of the crane 2 has a television camera for monitoring the entire cutting device 5.
57 is attached. In addition, 29 is a rotary joint.

The cutting device 5 operates as follows. This cutting device 5
To move the boom 3 of the crane 2 to a position on a component to be cut in the building, send a steering command to the antenna 33 of the radio control device 32 through the antenna 71, drive the engine 22, and generate a generator with an engine. Drive 31. Then, oil is supplied from the hydraulic pump 26 to the hydraulic motor 27 and the elevation cylinder 47, and the revolving frame 34 is revolved to a predetermined position.
As shown by an arrow Z, the cutter device 51 fixed to the bracket 43 is lifted up at a predetermined angle to pinch the portion to be cut, and the hydraulic cylinders 61 and 62 for cutting are operated in that state to operate the above-mentioned constituent members. To cut and separate.

Next, as shown in FIGS. 4 (a) and 4 (b), the gripping device 105 includes a pair of hooks 155 and 156 connected by connecting rods 148 and 147, and a connecting pin 145 to which a U-shaped holder 130 is attached. Thus, each pair of arms 131 and 132 are rotatably connected at their upper ends. The hooks 155 and 156 have their substantially central portions intersecting with each other and are rotatably connected by a connecting pin 153. Then, the upper ends of the hooks 155 and 156 are connected to the connecting pins 146 and 142, respectively.
Are rotatably connected to the lower ends of the arms 132 and 131. Brackets 144 and 143 are attached to the central portions of the connecting pins 142 and 146, respectively, and both ends of the opening / closing hydraulic cylinder 161 are connected to the brackets 144 and 143. The opening / closing hydraulic cylinder 161 expands and contracts by the hydraulic pressure from the ground through the hydraulic pipe 160. Then, the entire gripping device 105 is connected to the holder 130 by the rope 10
It is suspended on the crane 102 by 6. This crane
A television camera 157 for monitoring the entire gripping device 105 is attached to the boom 103 of the 102.

This gripping device 105 operates as follows. First, the boom 103 of the crane 102 is moved to position the gripping device 105 on a component of the building to be cut and separated. Oil is supplied from the ground through the hydraulic pipe 160 to extend the hydraulic cylinder 161 and open the hooks 155 and 156 to take in the above-mentioned components inside thereof, and then lower the hydraulic pressure to reduce the hydraulic cylinder 161.
Is contracted to close the hooks 155 and 156 so that the component is gripped.

Using the cutting device 5 and the gripping device 105 described above, the building is demolished as follows.

First, as shown in FIG.
A pair of gripping devices 105, 105 suspended on 02 are moved on the crane 2 to be positioned on the component 200a of the building 200 to be cut and separated, and the operating direction of the hydraulic cylinder 161 is controlled on the ground to hold the gripping device. The components 200a are gripped at two points by 105 and 105. And the cutting device 5 suspended by the crane 2 while suspending the gripping devices 105, 105 by the crane 102.
Is moved to a position near the place where the building 200 should be cut and separated, and the cutting device 5 is remotely operated by radio control to cut and separate the component 200a from the building 200. Thereafter, the component 200a is attached to the gripping device 10
While holding it with 5,105, move it to the ground with a crane. The building 200 is dismantled by repeating this series of operations. In this way, the building can be demolished quickly and efficiently by remote control.

As described above, since the cutting device 5 cuts and separates the structural member 200a that has been cut and separated, the structural member 200a is moved to the ground while being suspended by a crane without dropping, so that vibration, noise, and dust are not generated. You can Also, since the worker does not directly cut and separate,
Since it is not necessary to provide a scaffold for dismantling and work is not performed at a high place, there is no danger of the worker falling and safety is improved.

In addition, the above-mentioned component 200a is replaced by two gripping devices 105, 105.
Since it is gripped and suspended at one place, compared to the case where it is gripped and suspended at one place, there is less possibility of dropping this constituent member when moving it to the ground, and work is performed more safely and securely. be able to. Needless to say, it may be held and suspended at three or more places.

<Effects of the Invention> As is clear from the above, the method of dismantling a building of the present invention is such that the components constituting the building are gripped by a gripping device that operates by remote control, and the gripping device is suspended by a crane. , A remotely operated cutting device is suspended by a crane, the cutting device cuts and separates the above-mentioned components from the building, and then the crane holds the components to the ground. Since it is moved, it is vibration-free, noise-free, and dust-free, and there is no need to provide a scaffold for dismantling, so work can be performed safely.

Further, since the gripping device is opened and closed by the opening / closing cylinder that is operated by remote control, the constituent members of the building can be quickly and reliably gripped by remote control. The scissors-shaped cutter of the cutting device is swung by a power mechanism that operates remotely and swung with respect to the suspended platform and lifted up via a lifting cylinder to quickly set the optimum angle for the above components. To be done. Since the cutting operation is performed in this state, the above-mentioned constituent members can be efficiently cut from the optimum direction. As a result, the building can be demolished quickly and efficiently by remote control.

Further, when the constituent members are gripped and suspended by a plurality of gripping devices at a plurality of positions, the work can be performed more safely and reliably.

[Brief description of drawings]

FIG. 1 is a diagram showing a state in which a building demolition method of the present invention is being carried out, and FIG. 2 is a diagram showing a cutting device used in the present invention,
FIG. 3 is a view showing a main part of the above cutting device, FIG. 4 (a),
(B) is a figure which shows the holding | gripping apparatus used for this invention. 2,102 Crane, 3,103 Boom, 5 Cutting equipment, 21 stand, 22 Engine, 26 Hydraulic pump, 31
...... Generator with engine, 32 ...... Radio control device, 34 ...... Swiveling frame, 51 ...... Cutter device, 47, 61, 62, 161 ...... Hydraulic cylinder, 105 ...... Grip device, 155, 156 ... Hook.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tatsuhiro Kocho 2-19-1 Sanno, Hachimanto-ku, Kitakyushu, Fukuoka Prefecture, Okumuragumi Kyushu Branch, Inc. (72) Inventor Asanobu Kadota, Hachiman-gu, Kitakyushu, Fukuoka 2-19-1 Okumuragumi Kyushu Branch, Inc. (72) Inventor Eiji Matsuo Sanno 2-19-1 Okumuragumi Kyushu Branch, Kitakyushu, Kitakyushu, Fukuoka Prefecture (72) Inventor Makoto Kamiyama Hachiman, Kitakyushu, Kitakyushu, Fukuoka 2-19-1 Sanno, Higashi-ku, Okumuragumi Kyushu Branch Co., Ltd. (56) Reference JP-A-54-105826 (JP, A) JP-A-61-207766 (JP, A)

Claims (2)

[Claims] 1. A component constituting a building is gripped by a gripping device which is opened and closed by an opening / closing cylinder operated by remote control, and while the gripping device is suspended by a crane, the suspended platform and the platform A power mechanism provided on the above and operated by remote control, a scissor-shaped cutter mounted below the table so as to be rotatable with respect to the table and performing a turning and cutting operation by the power mechanism, a lower surface of the table and the above A cutting device, which is installed between the cutter and a lifting cylinder that operates by the power mechanism to raise and lower the cutter, is suspended by a crane, and the cutting device cuts and separates the components from the building. After that, in a state where this component is gripped by the gripping device,
A method of dismantling a building characterized by moving it to the ground with a crane. 2. The method of dismantling a building according to claim 1, wherein the constituent members are held and suspended at a plurality of positions by a plurality of the holding devices.