JP3383638B2 - Building demolition method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for demolishing a building, which is applicable to demolish a building, particularly a high-rise building.

[0002]

2. Description of the Related Art Usually, when dismantling a building, a method is adopted in which scaffolds are assembled around the building to be disassembled to cover the entire structure and dismantled sequentially from the upper floor. However, especially when the building to be demolished is a high-rise building, a large amount of scaffolding material is required, and the work position is high, which has the disadvantage of requiring a lot of labor and time for the work. It was In addition, it is necessary to take measures to prevent pollution problems due to noise and dust scattering during the demolition work of the building. Therefore, a method of shutting off and sealing the surroundings of the dismantling work floor can be considered, but conventionally, on the top floor itself of the building to be dismantled, the opening and closing roof was covered, and the dismantling machine was attached to it.
A construction method and the like in which a soundproof and dustproof shielding device is hung at the end thereof has been proposed.

[0003]

The above-mentioned conventionally proposed construction method initially covers the opening / closing roof on the top floor of the building itself to be dismantled, and mounts the dismantling machine on the roof, and the whole structure is considerably large. Since it becomes a heavy object, heavy machinery such as a large crane is required for unloading, and the higher the height of the demolished building, the more difficult and time-consuming the work is, and the hanging shielding device causes strong winds in high sky areas. There are problems with the danger of being agitated. Furthermore, since the floor surface to be worked is the floor to be dismantled, the floor space to be worked becomes narrower as the dismantling work progresses, and the workability becomes extremely poor. Therefore, it is conceivable to install a demolition machine on the lower floor next to the floor to be demolished and always secure the scaffolding necessary for the demolition work of the building.

It is an object of the present invention that a large heavy machine is not required for constructing a shield, and that the scaffolding necessary for the dismantling work of a building is always secured and the dismantling work can be smoothly carried out.
It is to provide a demolition method for buildings.

[0005]

In order to solve the above problems, the method of dismantling a building according to claim 1 is, for example, as shown in FIG. 1 (FIGS. 5 and 6), a building to be dismantled a (c). The guide columns 2 (102) are erected at predetermined intervals on the side circumference of the shield body 1 (101) which is guided by the guide columns 2 (102) and is vertically slidable on the ground or in the building a (c). The crane 3 (103) in which the guide strut member 2a (102a) is assembled to surround the side circumference of the building a (c) at the height of the lower floor and the guide strut material 2a (102a) is attached to the shield 1 (101).
The guide column 2 (102) is lifted up and connected to the upper end of the guide column 2 (102) to sequentially extend the guide column 2 (102) upward, and the extended guide column 2 (1).
02) to guide the shield 1 (101)
By wrapping around the side circumference of the top floor of the building a (c), each floor is sequentially dismantled from the top floor of the building a (c) to a lower floor, and each floor b1 (d1) to be dismantled moves downward. To
The shield 1 is guided by the guide column 2 (102).
(101) are sequentially lowered to the floor b1 (d
1) encloses and surrounds the side circumference of the guide column 2 (1)
02) of the upper end of the guide strut 2a (102a) is removed and suspended by the crane 3 (103), the guide strut 2 (102) is shortened in sequence, and the rope 114 connected to the shield is The shield 101 is moved up and down by a winch 104 to wind or rewind, and a load detection device (load cell) 119 for detecting a force applied to the rope 114 is provided.

Here, the low-rise floor refers to a floor having a height of, for example, about 2 to 5 floors, and from these floors, the demolished building is demolished in accordance with the site conditions of the building to be demolished. A floor suitable for carrying out the construction method is appropriately selected.

According to the first aspect of the present invention, the shield is assembled on the ground or at a height of a lower floor of a building, and
Since the guide pillars are sequentially raised to guide and wrap around the side circumference of the top floor of the building, the shield is assembled at the ground level or the height of the lower floors of the building with better working conditions than the height of the upper floors of the building. Therefore, the work of assembling the shield can be greatly simplified. Therefore, it is suitable to form the shield with a member having high strength / rigidity and sound insulation / heat insulation that can withstand strong winds on the higher floors of the building. In addition, by lifting the guide strut material with a crane attached to the shield and connecting it to the upper end of the guide strut, the guide strut is sequentially extended upward, and similarly, each floor of the building is sequentially dismantled. , Every time the floor to be dismantled moves downward, remove the guide strut material at the upper end of the guide strut and hang it down with a crane, and shorten the guide strut sequentially downward, so when constructing or dismantling the guide strut, a shield It does not require a separate crane to build or dismantle the guide stanchions, as long as the crane attached to the is used. In addition, each floor is demolished one by one from the top floor to the lower floor of the building, and each time the floor to be demolished moves downward, the shield is gradually lowered to enclose the side circumference of the floor to be demolished. It is possible to prevent the generated noise and dust from leaking to the outside of the building demolition site from the side of the floor to be demolished. Further, the wind and rain are blocked by the shield that surrounds the side circumference of the floor to be dismantled, and a good working environment can be secured on the floor to be dismantled. Therefore, the demolition work of the building is unlikely to be affected by the weather, and the demolition work can be smoothly performed. Furthermore, by winding or unwinding the rope connected to the shield with a winch, the shield is moved up and down, and since a load detection device for detecting the force applied to the rope is provided, when the shield is moved up and down, It is possible to prevent an excessive force from being applied to each rope and the winch by performing the winch winding or rewinding operation while detecting the force applied to each rope at once.

The method of dismantling a building according to claim 2 is, for example, as shown in FIG. 1 (FIGS. 5 and 6), a building a to be dismantled.
Guide struts 2 (102) are erected at predetermined intervals on the side circumference of (c), and the shield 1 (101) which is guided by the guide struts 2 (102) and is vertically slidable is placed on the ground or the building a ( Assembled at the height of the lower floor of c) so as to surround the side circumference of the building a (c), and to assemble the guide support member 2a (102).
a) is lifted by a crane 3 (103) attached to the shield 1 (101), and the guide column 2 (10)
By connecting to the upper end of 2), the guide column 2 (10
2) is sequentially extended upward, and the side circumference of the uppermost floor of the building a (c) is wrapped by the shield 1 (101) which is sequentially raised by the extended guide pillar 2 (102) as a guide. Enclosed, each floor is sequentially disassembled from the top floor of the building a (c) to the lower floor, and each time the floor b1 (d1) to be disassembled moves downward, the guide pillar 2 (102) is used as a guide and the shield 1 (101) are sequentially lowered to wrap around the side circumference of the floor b1 (d1) to be disassembled, and guide strut members 2a (102) at the upper end of the guide strut 2 (102).
a) is removed and is hung by the crane 3 (103), the guide columns 2 (102) are successively shortened downward, and the rope 114 connected to the shield 101 is hoisted or rewound by a winch 104. The shield 101 is moved up and down, and the rope 114 is moved so that the force applied to the winch 104 is reduced.
It is characterized in that 13 are combined.

According to the second aspect of the present invention, the shield is assembled on the ground or at a height of a lower floor of a building, and
Since the guide pillars are sequentially raised to guide and wrap around the side circumference of the top floor of the building, the shield is assembled at the ground level or the height of the lower floors of the building with better working conditions than the height of the upper floors of the building. Therefore, the work of assembling the shield can be greatly simplified. Therefore, it is suitable to form the shield with a member having high strength / rigidity and sound insulation / heat insulation that can withstand strong winds on the higher floors of the building. In addition, by lifting the guide strut material with a crane attached to the shield and connecting it to the upper end of the guide strut, the guide strut is sequentially extended upward, and similarly, each floor of the building is sequentially dismantled. , Every time the floor to be dismantled moves downward, remove the guide strut material at the upper end of the guide strut and hang it down with a crane, and shorten the guide strut sequentially downward, so when constructing or dismantling the guide strut, a shield It does not require a separate crane to build or dismantle the guide stanchions, as long as the crane attached to the is used. In addition, each floor is demolished one by one from the top floor to the lower floor of the building, and each time the floor to be demolished moves downward, the shield is gradually lowered to enclose the side circumference of the floor to be demolished. It is possible to prevent the generated noise and dust from leaking to the outside of the building demolition site from the side of the floor to be demolished. Further, the wind and rain are blocked by the shield that surrounds the side circumference of the floor to be dismantled, and a good working environment can be secured on the floor to be dismantled. Therefore, the demolition work of the building is unlikely to be affected by the weather, and the demolition work can be smoothly performed. Further, the rope connected to the shield is lifted or rewound by a winch to raise or lower the shield, and the rope is combined with a moving pulley so that the force applied to the winch is reduced. The force applied to the rope that is hoisted or unwound by the winch is smaller than that when a pulley is not combined, and the shield can be moved up and down with a smaller winch.

The demolition method of a building according to claim 3 is, for example, as shown in FIG. 1 (FIGS. 5 and 6), a building a to be demolished.
Guide struts 2 (102) are erected at predetermined intervals on the side circumference of (c), and the shield 1 (101) which is guided by the guide struts 2 (102) and is vertically slidable is placed on the ground or the building a ( Assembled at the height of the lower floor of c) so as to surround the side circumference of the building a (c), and to assemble the guide support member 2a (102).
a) is lifted by a crane 3 (103) attached to the shield 1 (101), and the guide column 2 (10)
By connecting to the upper end of 2), the guide column 2 (10
2) is sequentially extended upward, and the side circumference of the uppermost floor of the building a (c) is wrapped by the shield 1 (101) which is sequentially raised by the extended guide pillar 2 (102) as a guide. Enclosed, each floor is sequentially disassembled from the top floor of the building a (c) to the lower floor, and each time the floor b1 (d1) to be disassembled moves downward, the guide pillar 2 (102) is used as a guide and the shield 1 (101) are sequentially lowered to wrap around the side circumference of the floor b1 (d1) to be disassembled, and guide strut members 2a (102) at the upper end of the guide strut 2 (102).
a) is removed and is hung by the crane 3 (103), the guide columns 2 (102) are successively shortened downward, and the rope 114 connected to the shield 101 is hoisted or rewound by a winch 104. The shield 101 is moved up and down, a load detection device (load cell) 119 for detecting a force applied to the rope 114 is interposed in the rope 114, and the shield 114 is moved to reduce the force applied to the winch 104. It is characterized in that the pulley 113 is combined.

According to the third aspect of the invention, the shield is
After assembling on the ground or at the height of the lower floors of the building, the guide pillars are sequentially raised to guide and wrap around the side circumference of the top floor of the building. It is possible to assemble the shield at a good ground level or at a lower floor level of the building, which greatly simplifies the shield assembly work. Therefore, it is suitable to form the shield with a member having high strength / rigidity and sound insulation / heat insulation that can withstand strong winds on the higher floors of the building. In addition, by lifting the guide strut material with a crane attached to the shield and connecting it to the upper end of the guide strut, the guide strut is sequentially extended upward, and similarly, each floor of the building is sequentially dismantled. , Every time the floor to be dismantled moves downward, remove the guide strut material at the upper end of the guide strut and hang it down with a crane, and shorten the guide strut sequentially downward, so when constructing or dismantling the guide strut, a shield It does not require a separate crane to build or dismantle the guide stanchions, as long as the crane attached to the is used. In addition, each floor is demolished one by one from the top floor to the lower floor of the building, and each time the floor to be demolished moves downward, the shield is gradually lowered to enclose the side circumference of the floor to be demolished. It is possible to prevent the generated noise and dust from leaking to the outside of the building demolition site from the side of the floor to be demolished. Further, the wind and rain are blocked by the shield that surrounds the side circumference of the floor to be dismantled, and a good working environment can be secured on the floor to be dismantled. Therefore, the demolition work of the building is unlikely to be affected by the weather, and the demolition work can be smoothly performed. Further, since the force applied to the rope wound up or unwound by the winch is smaller than that in the case where the rope is not combined with the moving pulley, the load detecting device interposed in the rope can be made smaller.

The invention according to claim 4 is, for example, as shown in FIG.
~ Fig. 10, Fig. 12), in the demolition method for a building according to any one of claims 1 to 3, the lower floor b2 (d2) next to the floor b1 (d1) to be demolished of the building a. ) Dismantling machine (glass adsorption robot) 8, (small lifting workbench)
9, (cutting machine) 10 is installed and the floor b1 to be dismantled
(D1) is disassembled.

According to the invention described in claim 4, the same effects as those of the invention described in any one of claims 1 to 3 are obtained, and a demolition machine is provided on the lower floor next to the floor on which the building is demolished. Is installed and the floor to be dismantled is dismantled, so during the dismantling work of the floor to be dismantled, a scaffold necessary for the dismantling work of the floor to be dismantled is secured in the lower floor next to the floor to be dismantled The dismantling machine installed on the lower floor next to the floor can smoothly perform the dismantling work on the floor to be dismantled.

The invention according to claim 5 is, for example, as shown in FIG. 1, in the building dismantling method according to any one of claims 1 to 4, when the building a is dismantled, the roof 5 is It is characterized in that it is attached so as to be in close contact with the upper portion of the shield 1.

According to the invention described in claim 5,
The effect similar to that of the invention described in any one of 4 above is obtained, and at the time of demolishing the building, since the roof is attached so as to be in close contact with the upper part of the shield, noise and dust generated at the time of demolishing the building However, it can be prevented from leaking to the outside of the demolition site of the building from above the floor to be demolished. Moreover, the roof attached so as to be in close contact with the upper part of the shield that surrounds the side circumference of the floor to be demolished further blocks wind and rain, and a good working environment can be secured on the floor where the demolishing work is performed. Therefore, the demolition work of the building does not depend on the weather, and the demolition work can be performed more smoothly.

The invention according to claim 6 is, for example, as shown in FIG. 1, in the method for demolishing a building according to claim 5, characterized in that the roof 5 is provided with a water collecting hole 6.

According to the invention of claim 6, the same effect as that of the invention of claim 5 is obtained, and since the roof is provided with a water collecting hole, the rainwater that has poured down onto this roof is collected. It can be collected from the hole and used for watering to treat dust generated during the demolition work of the building.

The invention according to claim 7 is, for example, as shown in FIG. 1, in the dismantling method of a building according to any one of claims 1 to 6, a dismantling machine used for dismantling each floor b1 to be dismantled. It is characterized in that 8 to 10 are hoisted or hoisted by the crane 3.

According to the invention described in claim 7, claims 1 to
The effect similar to that of the invention described in any one of 6 is obtained, and the dismantling machine used for dismantling of each floor to be dismantled is hoisted or hung by a crane attached to the shield, so these hoisting machines are hoisted. Alternatively, there is no need to separately prepare a crane for hanging.

The invention according to claim 8 is, for example, as shown in FIG. 9, in the method for dismantling a building according to any one of claims 1 to 6, the dismantling machine used for dismantling each floor d1 to be dismantled. It is characterized in that 8 to 10 are hoisted or hoisted through the vertical hole e inside the building by the loading / lowering pedestal 121 installed on the lower floor d2 next to the floor d1 to be dismantled.

According to the invention described in claim 8, claims 1 to
With the same effect as the invention described in any one of 6 above, a dismantling machine used for dismantling of each dismantling floor is installed by a loading / lower gantry installed on the lower floor next to the floor to be dismantled.
Since it is hoisted or hoisted through a vertical hole inside the building, it is not necessary to provide a crane for hoisting or hoisting these dismantling machines outside the building.

The invention according to claim 9 is, for example, as shown in FIG. 1, in the method for dismantling a building according to any one of claims 1 to 8, the peripheral wall surface of the shield 1 is used as an advertising medium. Characterize.

According to the invention described in claim 9, claims 1 to
The effect similar to that of the invention described in any one of 8) can be obtained, and since the peripheral wall surface of the shielding body is used as an advertising medium, it is economical due to the shielding medium used as an advertising medium throughout the period of demolishing the building. The effect can be obtained.

The invention according to claim 10 is, for example, as shown in FIG. 2 (FIG. 8), in the demolition method for a building according to any one of claims 1 to 9, the shield 1 (101) is Comes into contact with the surface of the guide strut 2 (102), so that the guide strut 2 (10) of the shield 1 (101).
Steady stop material (U-frame) that can limit horizontal movement with respect to 2)
11 (111) is attached.

According to the invention of claim 10, claim 1
The same steady effect as that of the invention according to any one of 1 to 9 can be obtained, and the steady body is capable of limiting the horizontal movement of the shield with respect to the guide column by contacting the surface of the guide column with the shield. Since the material is attached, the shield rises.
The swing of the shield with respect to the guide column can be suppressed during the descending operation or when the wind is strong.

According to an eleventh aspect of the invention, for example, as shown in FIG. 2 (FIG. 8), in the demolition method for a building according to the tenth aspect, the steady rest 11 (111) is provided with the guide column 2 ( It is characterized in that a guide wheel 12 (112) capable of rolling up and down the surface of (102) is provided.

According to the invention of claim 11, claim 1
The same effect as 0 can be obtained, and the steady rest has
Since the guide wheel that can roll the surface of the guide column up and down is provided, the shield can be mounted on the guide column while suppressing the deflection of the shield with respect to the guide column during the raising or lowering operation of the shield. It is possible to smoothly raise or lower the guide.

According to a twelfth aspect of the present invention, for example, as shown in FIG. 5, in the demolition method for a building according to any one of the first to eleventh aspects, during the demolition work of each floor d1 to be demolished, A supporting member 115 is fixed to the guide column 102, and the shielding member 101 is supported by the supporting member 115.

According to the invention of claim 12, claim 1
The effect similar to that of the invention described in any one of 1 to 11 is obtained, and during the dismantling work of each floor to be dismantled, the support member is fixed to the guide column, and the shield member is supported by the support member. Therefore, during the dismantling work of each floor to be dismantled, which occupies most of the dismantling construction period of the building, the shield is stably held by the guide pillar through the support material.

[0030]

[0031]

[0032]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a building demolition method according to the present invention will be described in detail below with reference to the drawings.

[First Embodiment] The demolition method for a building according to the present embodiment requires a large heavy machine for constructing a shield, and there is a danger that the scaffolding for work is lost as the demolition is performed. As shown in FIGS. 1 to 4, the shield 1 for solving the problem is made of a sound insulation / insulation panel having rigidity that can withstand strong winds in high floors located in a high sky area.
First, the shield 1 is assembled on the ground so that it can be slid up and down on the guide column 2 that is first assembled around the building a.
The guide pillar 2 is raised by a winch 4 as a guide, and a roof 5 is attached on the uppermost floor of the building to form a closed shield A. In the closed shield A, the ceiling floor of the work floor that serves as a scaffold is dismantled. Then, the lower work scaffold is secured widely until the dismantling of the ceiling floor is completed, and each time the floor is dismantled, the closed shield A is lowered, and the work positions are sequentially arranged together with the dismantling machines 8 to 10, the next lower floor. The dismantled waste is suspended and crushed on the ground. For the water spray on each floor for dust treatment, the rainwater in the water spray tank 7 collected in the water collection holes 6 of the roof 5 is used. A hermetically sealed shield A that is effectively used and that can be raised to withstand strong winds in a high air space, to prevent cold, noise, and dust scattering
The peripheral wall surface of the shield 1 is used as an advertising medium.

In particular, since the work of assembling the shield 1 is performed on the ground, it is remarkably safe as compared with the conventional construction method. Therefore, the shield 1 for noise prevention and dust scattering prevention is required.
Can be made up of a sound insulation / insulation panel with high rigidity that can withstand strong winds in high altitudes.
Since it is raised by itself together with the guide pillars 2 to be assembled, only the crane 3 and winch 4 that work in a small turn are all necessary, large heavy equipment is not required, work is always dismantling work on the ceiling floor, scaffolding In the lower working floor, the entire space is secured to the end, and as the dismantling progresses, the closed shield A for preventing noise and dust scattering is lowered while the dismantling machines 8 to 10 and the dismantling work position are being moved. Also moved to the lower floor, and dismantled debris is hung by the crane 3 and crushed on the ground, so work is safe and workable, efficient and shortens the construction period. During the construction period of, the shield can be used in various ways as an advertising medium.

The embodiment will be described in detail. As shown in FIG. 1, the shield 1 assembled on the ground is 8 m in the embodiment.
Assuming that it hits three guide strut members 2a made of H-shaped steel pieces that compose the guide strut 2 to be assembled, first, make a few copies in the building around the building a to be dismantled Each of the guide columns 2a is connected to each other, and each of the guide frames 2a having a thickness of about 30 mm, which is a sandwich sound-insulating / heat-insulating panel, is fixed to the surface. Ring 12
And hug it on the guide column 2 (see Fig. 2), and the building a
A shield 1 that surrounds and surrounds the periphery is configured. That is, the shield that can be assembled on the ground can be configured with a member size that is sufficiently rigid and has sufficient sound insulation and heat insulation to withstand strong winds and cold in high altitude areas. Since an advertisement of a contracted company or the like is drawn on the outer surface of the shield 1, it is used as an advertising medium having an advertising effect during a long construction period.

As shown in FIG. 3, the tightly assembled shield 1 has a rope 13 attached to the lower end of the rope 14 and attached to the pulley 13 which is detachably attached to the top of the guide column 2. Several winches 4 that hang up and are installed on the ground
, And the guide columns 2 are used as guides, and the entire shield 1 is gradually slid up by the guide wheel 12 of the U-shaped frame 11. Then, with the upper half of the shield 1 out of the air, the crane 3 installed on the top of the U-shaped frame 11 is used to form the guide strut member 2a made of the H-shaped steel piece constituting the guide strut 2 into a U-shaped shape. It is put down between the guide wheels 12 of the frame 11, and the guide strut material 2a is further added while keeping a restraint to extend the guide strut 2 upward, and the shield 1 is gradually raised by the winch 4 accordingly. . In this case, the shield 1 is temporarily retained in the building a, temporarily held, replaced with the upper part of the guide strut member 2a to which the pulley 13 is added, and then the rope 14 is rewound and wound around the winch 4.

Along with the guide pillars 2, when the shield 1 reaches the top floor of the demolished building a, a roof 5 having a sound insulating / heat insulating panel at the top and a concave portion leading to the water collecting hole 6 is covered. The closed shield A is constructed by fixing. The roof 5 shall consist of a soundproof and heat insulating panel with high rigidity, and the roof 1
Since it can be firmly fixed to, it is possible to construct a strong closed shield A. In this closed shield A, on the lower floor b2 next to the floor b1 to be dismantled, together with a sprinkling water storage tank 7 for storing rainwater collected in the water collection holes 6, a glass adsorption robot 8 for adsorbing and removing sashes and glass 8 Alternatively, a small lifting worktable 9 and a cutting machine 10 for cutting and receiving the floor and beams of the floor b1 to be dismantled
Install a small dismantling machine, etc. to dismantle. Until the dismantling of the ceiling floor, that is, the floor to be dismantled b1 is completed, the floor to be worked, that is, the lower floor b next to the floor to be dismantled b1
In 2, the work floor space is secured as it is, so the work can proceed safely.

The PC plate 18, the glass, the sash, etc. constituting the dismantled wall are provided on the top of the shield 1 with the hoist 15.
Then, the temporary enclosure space 17 formed between the guide columns 2
(See FIG. 1 and FIG. 4) It is suspended inside, partially slid to the ground, crushed by the crusher 16 installed on the ground, and discharged to the outside. Also, cut slab floors and steel columns
Separately, the beams are hung on the ground with a gate-type crane and crushed.

Every time the ceiling floor is dismantled, the working position moves to the lower floor together with the machine, and the closed shield A also descends. In this case, however, the work is the reverse of the raising work, and the guide support 2 Is dismantled and is hung down for each guide strut material 2a disassembled by the mini crane 3 attached to the upper part of the shield 1, and at the same time, the rope 14 that engages with the pulley 13 that is changed to the lower side is loosened with the winch 4 and sealed. Lower the shield A for each floor where dismantling work is continued, and dismantling machines 8 to 1
0 is installed in the lower floor b2 next to the floor b1 to be dismantled to secure a work space and a work scaffold. The shield 1 is always located in a high space during the construction period during which it descends from the rising to the ground while dismantling work, but since the outer wall serves as the advertisement display surface during this period, it can be seen from all eight directions. It also serves as an advertising body and is extremely effective and helps to generate costs.
The sprinkling of water during the dismantling work that calms down the dust effectively uses the rainwater collected on the roof 5 and stored in the sprinkling water storage tank 7, which also contributes to resource saving.

[Second Embodiment] The building dismantling method of the present embodiment is roughly the same as the building dismantling method of the first embodiment, as shown in FIGS. 5 and 6. Guide pillars 102 are erected at predetermined intervals on the side circumference of the building c, and a shield 101 that is guided by the guide pillars 102 and is vertically slidable is installed at the height of the lower floors of the building c at the side circumference of the building c. Assemble around the guide pillar material 102a
Is lifted by a crane 103 attached to the shield 101 and connected to the upper end portion of the guide column 102, whereby the guide column 102 is sequentially extended upward and the extended guide column 102 is used as a guide. The shield 101 that is sequentially raised surrounds and surrounds the side circumference of the uppermost floor of the building c, sequentially dismantles each floor from the uppermost floor of the building c to a lower floor, and every time the dismantled floor d1 moves downward. ,
Using the guide pillar 102 as a guide, the shield 101 is sequentially lowered to enclose and surround the side circumference of the floor d1 to be dismantled, and the guide pillar material 102a at the upper end of the guide pillar 102 is removed and the crane 103 is used. It is hung down and the guide columns 102 are successively shortened downward.

As shown in FIG. 5, the shield 101 is composed of a shield plate 101a composed of a sound insulation / heat insulation panel and a frame 101b made of steel to support the guide plate 102a. . The shielding plate 101a and the frame 101b are configured with a member size and a structure that are sufficiently rigid to withstand a strong wind in the high floors of the building c to be demolished. A protective net 105 is stretched over the shield 101. Also, with the lower floor,
A floor suitable for implementing the demolition method of the present building is appropriately selected from floors having a height of about 2 to 5 according to the site conditions of the building c to be demolished.

Further, as shown in FIGS. 8 to 10 and 12, the dismantling of the glass suction robot 8, the small work platform 9, the cutting machine 10 and the like on the lower floor d2 of the building c next to the floor d1 to be dismantled. A machine is installed to dismantle the floor d1 to be dismantled.

Further, as shown in FIG. 9, the loading / unloading pedestal 121 in which the dismantling machines 8 to 10 used for dismantling each floor b1 to be dismantled is installed on the lower floor d2 next to the floor d1 to be dismantled.
To hang or hang through the vertical hole e inside the building.

As shown in FIGS. 5 and 6, the rope 114 connected to the shield 101 is attached to the winch 10.
By winding or rewinding by 4 the shield 101
And a load cell (load detection device) 119 for detecting the force applied to the rope 114.
And the movable pulley 113 is combined so that the force applied to the winch 104 becomes small.

As shown in FIG. 6, the movable pulley 113 includes an upper pulley 113a fixed to the guide column 2 and a lower pulley 113 fixed to the frame 101b of the shield 101.
b and. Winch 104 rope 11
When 4 is rolled up, the upper pulley 113a and the lower pulley 113b are
When the distance between the upper sheave 113a and the lower sheave 113 is increased by retracting the rope 114 on the contrary, the shield 101 rises and the shield 101 rises.
The shield 101 moves down as the distance from b increases.

Since the rope 114 is quadruple wound between the upper pulley 113a and the lower pulley 113b as shown in FIG. 6, the lower pulley 113 fixed to the shield 101 is fixed.
b is supported by the upper pulley 113a via a total of eight ropes 114. That is, the force applied to the rope 114 is ⅛ as compared with the case where the movable pulley 113 is not used.

Here, as shown in FIGS. 8 to 13, a steady rest 111 is attached to the shield 101 so that a pair of guide columns 102 facing each other with the building c sandwiched therebetween is sandwiched from the outside. ing. This steady rest 11
1 is provided with a guide rolling wheel 112 capable of rolling up and down on the surface of the guide column 102. A clearance of, for example, about 30 mm is formed between the guide column 102 and the guide wheel 112 so that the two do not normally come into contact with each other, but when the shield 101 moves up and down, When the wind is strong, the shield 101 guides the pillar 10
When trying to make horizontal movement with respect to 2, the guide roller 11
When 2 comes into contact with the surface of the guide column 102, the shield 1
The horizontal movement of 01 with respect to the guide column 102 is restricted within a certain amount.

Further, as shown in FIG. 5, during the dismantling work of each of the floors d1 to be dismantled, a support member 115 is fixed to the guide column 102 and the shield member 101 is supported by the support member 115. Let At the same time, as shown in FIGS. 5 and 7, the shielding member 101 is connected to the pillar material of the building c that is dismantled at a plurality of points with the wire 120, and the shielding body 101 is dismantled in a strong wind such as a typhoon. On the other hand, it is prevented from shaking more than allowable.

The dismantling procedure of each floor d2 to be dismantled by the building dismantling method of this embodiment will be described with reference to FIGS. First, as shown in FIG. 8, the glass sash d11 on the floor d1 to be dismantled is removed by the glass suction robot 8 arranged on the lower floor d2 next to the floor d1 to be dismantled. Also, the loading / unloading pedestal 1 also arranged on the next lower floor d2.
21 is used to hang the removed glass sash d11 from the vertical hole e inside the building c to be dismantled to the ground floor of the building c.

Next, as shown in FIG. 9, the floor d1 to be dismantled
Floor slab cutting machine 122 installed at
Cutting the floor slab d12, receiving the floor slab d12 cut by the small lifting workbench 9 arranged on the next lower floor d2,
The cut floor slab d12 is hung on the ground floor of the building c by the loading / unloading mount 121.

Subsequently, as shown in FIG. 10, the internal steel frames d13 and d14 of the floor d1 to be disassembled are cut by the cutting machine 10 installed on the floor d1 to be disassembled, and the interior cut by the small lifting workbench 9 is cut. The steel frames d13 and d14 are received, and the cut internal steel frames d13 and d14 are connected to the building c by the loading / unloading frame 121.
Hang it on the ground floor of.

Further, as shown in FIG. 11, the shield 10
With the crane 103 installed on the frame 101b of No. 1,
The outer wall plate d15 of the floor d1 to be dismantled is removed, and the removed outer wall plate d15 is hung by the crane 103 or the loading / unloading pedestal 121 on the ground floor of the building c, and then crushed.

Then, as shown in FIG. 12, the outer steel frames d16 and d17 of the floor d1 to be disassembled are cut by the cutting machine 10 installed on the floor d1 to be disassembled, and the outer steel frames cut by the small lifting work table 9 are cut. Upon receiving d16 and d17, the cut outer steel frames d16 and d17 are laid on the building c by the loading / unloading mount 121.
Hang it on the ground floor of.

Finally, as shown in FIG. 13, the winch 1
Using 04, the shield 101 is lowered to the height of the floor to be dismantled next.

Now, the procedure of raising and lowering the shield 101 using the winch 104 will be described. Shield 10
When performing the elevating operation of No. 1, as shown in FIG. 14, the shield 101 is placed on the floor of the building c where the shield 101 is located.
Conductor M1 and winch 104 managing the entire lifting operation
The state of the driver M2 operating the vehicle, the lifting device (moving pulley 13, rope 14), the tension of the rope 14 detected by the load cell 119, the hoisting / rewinding amount of the winch 104, and a laser displacement meter (not shown). An elevation observer M3 for observing the level of each part of the shield 101 and a viewer M4 for observing the state of the shield 101 are arranged, and on the ground where the winch 4 is installed, A winch observer M5 who observes the state of the winch 4 is arranged.

First, the conductor M1 instructs the driver M2 to drive the winch 104. The driver M2 is the conductor M
According to the instruction No. 1, the winch 104 is operated. During the raising / lowering operation of the shield 101, the ascending / descending observer M3 makes the state of the raising / lowering device (moving pulley 13, rope 14) and the load cell 11
Tension of rope 14 detected by 9 winch 104
The amount of hoisting / rewinding and the level of each portion of the shield 101 detected by a laser displacement meter (not shown) are observed. When the ascending / descending observer M3 finds an abnormality in any of these, a signal is sent to the conductor M1 by a horn, and the conductor M1 who has received the signal causes the driver M2 to stop the operation of the winch 4. Further, during the raising / lowering operation of the shield 101, the winch observer M5 observes the state of the winch 104 installed on the ground. When the winch observer M5 finds an abnormality in the state of the winch 4, the conductor M1 sends a wireless signal to the conductor M1, and the conductor M1 having received the signal causes the driver M2 to stop the operation of the winch 104. The raising / lowering operation of the shield 101 by the winch 104 is stopped, for example, every 10 cm in height, and the elevation observer M3 confirms the level of each part of the shield 101 each time, and the level difference is 10 cm or more. In case of, the plurality of winches 104 are individually operated to adjust the level. By the above method,
The shield 101 is raised or lowered by a desired height.
When the raising / lowering operation of the shield 101 is completed, the support member 115 is installed on the guide column 2 after the instruction of the conductor M1, and the shield 101 is supported by the support member 115.

As described above, according to the demolition method for a building described in the present embodiment, the shield 101 is assembled at the height of the lower floors of the building c, and then the guide pillars 102 are sequentially raised to guide, Since it surrounds the side circumference of the top floor of the building c, the shield 101 can be assembled at the height of the lower floors of the building c, which has better working conditions than the height of the upper floors of the building c.
The assembly work of 01 can be greatly simplified. for that reason,
A member 101 having a large strength / rigidity capable of withstanding the strong wind on the high floors of the building c and having a high sound insulation / insulation property.
a, 101b. In addition, the crane 1 in which the guide support member 102a is attached to the shield 101
It is lifted by 03 and connected to the upper end of the guide strut 102, whereby the guide strut 102 is sequentially extended upward, and similarly, each floor of the building c is sequentially demolished, and the floor d1 to be demolished moves downward. For each time, the guide strut material 102a at the upper end of the guide strut 102 is removed and hung by the crane 103, and the guide strut 102 is shortened in sequence downward.
When constructing or disassembling the guide column 102, the shield 1
Since it is sufficient to use the crane 103 attached to 01, it is not necessary to separately prepare a crane for constructing or disassembling the guide column 102. Further, each floor is sequentially demolished from the top floor of the building c to the lower floor, and the shield 101 is sequentially lowered every time the floor d1 to be demolished is moved downward to demolish the floor d.
Since it surrounds the side circumference of No. 1, it is possible to prevent noise and dust generated during the dismantling of the building c from leaking from the lateral side of the floor d1 to be dismantled to the outside of the dismantling site of the building c. Further, the wind and rain are blocked by the shield 101 surrounding the side circumference of the floor d1 to be dismantled, and a good working environment can be secured on the floor d1 to be dismantled. Therefore, the dismantling work of the building c is less affected by the weather, and the dismantling work can be smoothly performed.

Further, since the dismantling machines 8 to 10 are installed on the lower floor d2 next to the floor d1 to be dismantled of the building c to dismantle the floor d1 to be dismantled, during the dismantling work of the floor d1 to be dismantled,
On the lower floor d2 next to the floor d1 to be demolished, a scaffold required for the demolishing work of the floor d1 to be demolished is secured, and the floor d to be demolished
The dismantling machines 8 to 10 installed on the lower floor d2 next to the first unit can smoothly carry out the dismantling work of the floor d1 to be dismantled.

The dismantling machines 8 to 10 used for dismantling each floor d1 to be dismantled are loaded through the vertical holes e in the building c by the loading / lowering pedestal 121 installed on the lower floor d2 next to the floor d1 to be dismantled. Since it is hoisted or hoisted, it is not necessary to prepare a crane for hoisting or hoisting these dismantling machines 8 to 10 outside the building.

The rope 1 connected to the shield 101
By winding or unwinding 14 by the winch 104, the shield 101 is moved up and down, and the rope 114 is provided with a movable pulley 11 so that the load applied to the winch 104 is reduced.
Since 3 are combined, the moving pulley 1 is attached to the rope 114.
The load applied to the rope 114 is smaller than that in the case where 13 is not combined, and the shield 101 can be moved up and down by a smaller winch 104.

Further, between the shield 101 and the movable pulley 113, the load cell 1 for detecting the force applied to the rope 114.
Since 19 is provided, when the shield 101 is moved up and down, the force applied to each rope 114 is detected momentarily,
By performing a hoisting or rewinding operation of the winch 104, it is possible to prevent an excessive force from being applied to each rope 114 and the winch 104.

Further, the guide pillar 10 is provided on the shield 101.
Since the steadying member 111 capable of restricting the horizontal movement of the shield 101 with respect to the guide column 102 by being brought into contact with the second surface is attached, the shield 101 can be used when the shield 101 moves up and down or when the wind is strong. The shake of 101 with respect to the guide column 102 can be suppressed.

Further, since the steady rest 111 is provided with the guide rolling wheel 112 capable of rolling up and down on the surface of the guide column 102, the shield 101 can be moved while the shield 101 is moving up or down. It is possible to smoothly raise or lower the shield 101 by using the guide column 102 as a guide while suppressing the shake of the 101 with respect to the guide column 102.

During the dismantling work of each floor d1 to be dismantled, the support member 115 is fixed to the guide column 102,
Since the shielding member 101 is supported by the supporting member 115, the shielding member 101 is stably attached to the guide column 102 via the supporting member 115 during the dismantling work of each dismantling floor d1 which occupies most of the dismantling construction period of the building c. Held in.

The structure of the building demolition method of the present invention is as follows:
The present invention is not limited to the above embodiment, and various improvements and design changes may be made without departing from the spirit of the present invention. For example, in the second embodiment, the conductor M1, the driver M2, the ascending / descending observer M3, the observer M4, and the like when the shield 101 is moved up and down using the winch 104.
The personnel of the winch observer M5 are arranged at respective predetermined positions, and when an abnormality is found during the raising / lowering operation of the shield 101, a signal is sent to the conductor M1 by a horn or radio,
The driver M2 follows the instructions of the conductor M1 and winches 104.
The method of doing is adopted. However, information such as the tension of the rope 14 detected by the load cell 119, the hoisting / unwinding amount of the winch 104, and the level of each portion of the shield 101 detected by a laser displacement meter (not shown) is stored in a computer or other computing device. The operation and the operation of the winch 104 are automatically performed according to the above-mentioned information by the calculation program based on the above-mentioned work procedure, so that it is possible to significantly reduce the personnel and the time required for the lifting and lowering operation of the shield 101. it can. In addition, it goes without saying that a specific detailed structure can be appropriately changed.

[0066]

According to the invention of claim 1, the shield is assembled on the ground or at a height of a lower floor of a building, and
Since the guide pillars are sequentially raised to guide and wrap around the side circumference of the top floor of the building, the shield is assembled at the ground level or the height of the lower floors of the building with better working conditions than the height of the upper floors of the building. Therefore, the work of assembling the shield can be greatly simplified. Therefore, it is suitable to form the shield with a member having high strength / rigidity and sound insulation / heat insulation that can withstand strong winds on the higher floors of the building. In addition, by lifting the guide strut material with a crane attached to the shield and connecting it to the upper end of the guide strut, the guide strut is sequentially extended upward, and similarly, each floor of the building is sequentially dismantled. , Every time the floor to be dismantled moves downward, remove the guide strut material at the upper end of the guide strut and hang it down with a crane, and shorten the guide strut sequentially downward, so when constructing or dismantling the guide strut, a shield It does not require a separate crane to build or dismantle the guide stanchions, as long as the crane attached to the is used. In addition, each floor is demolished one by one from the top floor to the lower floor of the building, and each time the floor to be demolished moves downward, the shield is gradually lowered to enclose the side circumference of the floor to be demolished. It is possible to prevent the generated noise and dust from leaking to the outside of the building demolition site from the side of the floor to be demolished. Further, the wind and rain are blocked by the shield that surrounds the side circumference of the floor to be dismantled, and a good working environment can be secured on the floor to be dismantled. Therefore, the demolition work of the building is unlikely to be affected by the weather, and the demolition work can be smoothly performed. Furthermore, by winding or unwinding the rope connected to the shield with a winch, the shield is moved up and down, and since a load detection device for detecting the force applied to the rope is provided, when the shield is moved up and down, It is possible to prevent an excessive force from being applied to each rope and the winch by performing the winch winding or rewinding operation while detecting the force applied to each rope at once.

According to the second aspect of the invention, the shield is
After assembling on the ground or at the height of the lower floors of the building, the guide pillars are sequentially raised to guide and wrap around the side circumference of the top floor of the building. It is possible to assemble the shield at a good ground level or at a lower floor level of the building, which greatly simplifies the shield assembly work. Therefore, it is suitable to form the shield with a member having high strength / rigidity and sound insulation / heat insulation that can withstand strong winds on the higher floors of the building. In addition, by lifting the guide strut material with a crane attached to the shield and connecting it to the upper end of the guide strut, the guide strut is sequentially extended upward, and similarly, each floor of the building is sequentially dismantled. , Every time the floor to be dismantled moves downward, remove the guide strut material at the upper end of the guide strut and hang it down with a crane, and shorten the guide strut sequentially downward, so when constructing or dismantling the guide strut, a shield It does not require a separate crane to build or dismantle the guide stanchions, as long as the crane attached to the is used. In addition, each floor is demolished one by one from the top floor to the lower floor of the building, and each time the floor to be demolished moves downward, the shield is gradually lowered to enclose the side circumference of the floor to be demolished. It is possible to prevent the generated noise and dust from leaking to the outside of the building demolition site from the side of the floor to be demolished. Further, the wind and rain are blocked by the shield that surrounds the side circumference of the floor to be dismantled, and a good working environment can be secured on the floor to be dismantled. Therefore, the demolition work of the building is unlikely to be affected by the weather, and the demolition work can be smoothly performed. Further, the rope connected to the shield is lifted or rewound by a winch to raise or lower the shield, and the rope is combined with a moving pulley so that the force applied to the winch is reduced. The force applied to the rope that is hoisted or unwound by the winch is smaller than that when a pulley is not combined, and the shield can be moved up and down with a smaller winch.

According to the third aspect of the invention, the shield is
After assembling on the ground or at the height of the lower floors of the building, the guide pillars are sequentially raised to guide and wrap around the side circumference of the top floor of the building. It is possible to assemble the shield at a good ground level or at a lower floor level of the building, which greatly simplifies the shield assembly work. Therefore, it is suitable to form the shield with a member having high strength / rigidity and sound insulation / heat insulation that can withstand strong winds on the higher floors of the building. In addition, by lifting the guide strut material with a crane attached to the shield and connecting it to the upper end of the guide strut, the guide strut is sequentially extended upward, and similarly, each floor of the building is sequentially dismantled. , Every time the floor to be dismantled moves downward, remove the guide strut material at the upper end of the guide strut and hang it down with a crane, and shorten the guide strut sequentially downward, so when constructing or dismantling the guide strut, a shield It does not require a separate crane to build or dismantle the guide stanchions, as long as the crane attached to the is used. In addition, each floor is demolished one by one from the top floor to the lower floor of the building, and each time the floor to be demolished moves downward, the shield is gradually lowered to enclose the side circumference of the floor to be demolished. It is possible to prevent the generated noise and dust from leaking to the outside of the building demolition site from the side of the floor to be demolished. Further, the wind and rain are blocked by the shield that surrounds the side circumference of the floor to be dismantled, and a good working environment can be secured on the floor to be dismantled. Therefore, the demolition work of the building is unlikely to be affected by the weather, and the demolition work can be smoothly performed. Further, since the force applied to the rope wound up or unwound by the winch is smaller than that in the case where the rope is not combined with the moving pulley, the load detecting device interposed in the rope can be made smaller.

According to the invention described in claim 4,
The effect similar to that of the invention described in any one of 3 is obtained, and since the dismantling machine is installed on the lower floor next to the floor to be dismantled of the building to dismantle the floor to be dismantled, dismantling of the floor to be dismantled. Throughout the work, a scaffold necessary for dismantling work on the floor to be dismantled is secured on the lower floor next to the floor to be dismantled, and the dismantling machine installed on the lower floor next to the floor to be dismantled The dismantling work can proceed smoothly.

According to the invention of claim 5, claim 1
The effect similar to that of the invention described in any one of 4 above is obtained, and at the time of demolishing the building, since the roof is attached so as to be in close contact with the upper part of the shield, noise and dust generated at the time of demolishing the building However, it can be prevented from leaking to the outside of the demolition site of the building from above the floor to be demolished. Moreover, the roof attached so as to be in close contact with the upper part of the shield that surrounds the side circumference of the floor to be demolished further blocks wind and rain, and a good working environment can be secured on the floor where the demolishing work is performed. Therefore, the demolition work of the building does not depend on the weather, and the demolition work can be performed more smoothly.

According to the invention described in claim 6, the same effect as in claim 5 is obtained, and since the roof has the water collecting hole, the rainwater that has fallen on this roof is collected from the water collecting hole. It can be used for watering to treat dust generated during demolition work of buildings.

According to the invention described in claim 7, claims 1 to
The effect similar to that of the invention described in any one of 6 is obtained, and the dismantling machine used for dismantling of each floor to be dismantled is hoisted or hung by a crane attached to the shield, so these hoisting machines are hoisted. Alternatively, there is no need to separately prepare a crane for hanging.

According to the invention described in claim 8,
With the same effect as the invention described in any one of 6 above, a dismantling machine used for dismantling of each dismantling floor is installed by a loading / lower gantry installed on the lower floor next to the floor to be dismantled.
Since it is hoisted or hoisted through a vertical hole inside the building, it is not necessary to provide a crane for hoisting or hoisting these dismantling machines outside the building.

According to the invention of claim 9, claim 1
The effect similar to that of the invention described in any one of 8) can be obtained, and since the peripheral wall surface of the shielding body is used as an advertising medium, it is economical due to the shielding medium used as an advertising medium throughout the period of demolishing the building. The effect can be obtained.

According to the invention of claim 10, claim 1
The same steady effect as that of the invention according to any one of 1 to 9 can be obtained, and the steady body is capable of limiting the horizontal movement of the shield with respect to the guide column by contacting the surface of the guide column with the shield. Since the material is attached, the shield rises.
The swing of the shield with respect to the guide column can be suppressed during the descending operation or when the wind is strong.

According to the invention of claim 11, claim 1
The same effect as 0 can be obtained, and the steady rest has
Since the guide wheel that can roll the surface of the guide column up and down is provided, the shield can be mounted on the guide column while suppressing the deflection of the shield with respect to the guide column during the raising or lowering operation of the shield. It is possible to smoothly raise or lower the guide.

According to the invention of claim 12, claim 1
The effect similar to that of the invention described in any one of 1 to 11 is obtained, and during the dismantling work of each floor to be dismantled, the support member is fixed to the guide column, and the shield member is supported by the support member. Therefore, during the dismantling work of each floor to be dismantled, which occupies most of the dismantling construction period of the building, the shield is stably held by the guide pillar through the support material.

[0078]

[Brief description of drawings]

FIG. 1 is a side view showing an example of a building demolition method of the present invention.

FIG. 2 is a main part plan view of a guide column and a shield slide section in the same example.

FIG. 3 is a side view of essential parts showing a disassembled state of a guide column in the same example.

FIG. 4 is a plan view of a main part of the same example.

FIG. 5 is a vertical cross-sectional view showing another example of the building demolition method of the present invention.

[Fig. 6] Fig. 6 is a view showing a lifting and lowering means (a winch
It is a perspective view showing a movable pulley and a rope.

FIG. 7 is a plan view of the same example.

FIG. 8 is a longitudinal sectional view showing a first stage of a dismantling procedure of each floor in the same example.

FIG. 9 is a vertical cross-sectional view showing a second stage of the dismantling procedure of each floor in the same example.

FIG. 10 is a vertical sectional view showing a third stage of the dismantling procedure of each floor in the same example.

FIG. 11 is a vertical sectional view showing a fourth step of the dismantling procedure of each floor in the same example.

FIG. 12 is a vertical sectional view showing a fifth step of the dismantling procedure of each floor in the same example.

FIG. 13 is a vertical sectional view showing a sixth step of the dismantling procedure of each floor in the same example.

FIG. 14 is a plan view showing an arrangement of personnel when raising and lowering the shield in the same example.

[Explanation of symbols]

1,101 Shield 2,102 guide support 2a, 102a Guide support material 3,103 cranes 4,104 winch 5 roof 6 water collection holes 8 Dismantling machine (glass suction robot) 9 Dismantling machine (small lifting platform) 10 Dismantling machine (cutting machine) 11,111 steady rest (U-frame) 12,112 Guide roller 113 Pulley 14,114 rope 115 Support material 119 Load detection device (load cell) 121 Loading / Underloading Stand a, c building b1, d1 Floor to be dismantled b2, d2 the next lower floor (of the floor to be demolished) e Vertical hole

Front page continued (72) Inventor Tokuhiro Goto 1-20-10 Toranomon, Minato-ku, Tokyo Nishimatsu Construction Co., Ltd. (72) Inventor Yasuyuki Kago 1-20-10 Toranomon, Minato-ku, Tokyo Nishimatsu Construction Co., Ltd. (72) Inventor Takeshi Miyashita 1-20-10 Toranomon, Minato-ku, Tokyo Nishimatsu Construction Co., Ltd. (72) Inventor Etsue Sakurai 1-20-10 Toranomon, Minato-ku, Tokyo Nishimatsu Construction Co., Ltd. (72) Invention Fumio Abe 10-26-15, General Manager Izumi-ku, Sendai City (72) Inventor Shinichi Saito 4-25-11, Yurigaoka, Natori City, Miyagi Prefecture (56) Reference JP-A-11-30038 (JP, A) Flat 11-6310 (JP, A) JP 53-63720 (JP, A) JP 7-54503 (JP, A) JP 6-307096 (JP, A) Actual flat 2-74450 (JP , U) (58) Fields investigated (Int.Cl. ⁷ , DB name) E04G 23/08 E04G 21/28

Claims (12)

(57) [Claims] 1. A guide pillar is erected at a predetermined interval on a side circumference of a building to be dismantled, and a shield which is guided by the guide pillar and is vertically slidable is provided at the height of the ground or a lower floor of the building. Assembled so as to surround the side circumference of the building, by lifting the guide strut material with a crane attached to the shield, by connecting to the upper end of the guide strut,
The guide pillars are sequentially extended upward, and the side wall of the uppermost floor of the building is surrounded and surrounded by the shield that is sequentially raised by the extended guide pillars as a guide. To dismantle each floor in sequence, every time the floor to be dismantled moves downward, guide the guide pillar,
A building in which the shield is sequentially lowered to enclose and surround the side circumference of the floor to be dismantled, the guide strut material at the upper end of the guide strut is removed, and the crane is hung down and the guide strut is sequentially shortened downward. In the dismantling method, the hoisting or rewinding of the rope connected to the shield by a winch raises or lowers the shield, and a load detection device for detecting a force applied to the rope is provided. Characteristic building demolition method. 2. A guide pillar is erected at a predetermined interval on a side circumference of a building to be dismantled, and a shield which is guided by the guide pillar and is vertically slidable is provided on the ground or at a height of a lower floor of the building. Assembled so as to surround the side circumference of the building, by lifting the guide strut material with a crane attached to the shield, by connecting to the upper end of the guide strut,
The guide pillars are sequentially extended upward, and the side wall of the uppermost floor of the building is surrounded and surrounded by the shield that is sequentially raised by the extended guide pillars as a guide. To dismantle each floor in sequence, every time the floor to be dismantled moves downward, guide the guide pillar,
A building in which the shield is sequentially lowered to enclose and surround the side circumference of the floor to be dismantled, the guide strut material at the upper end of the guide strut is removed, and the crane is hung down and the guide strut is sequentially shortened downward. In the dismantling method, the rope connected to the shield is hoisted or rewound by a winch to raise or lower the shield, and the rope has a movable pulley so that the force applied to the winch becomes small. A demolition method for buildings characterized by being combined. 3. A guide pillar is erected at a predetermined interval on a side circumference of a building to be dismantled, and a shield which is guided by the guide pillar and slidable up and down is provided on the ground or at a height of a lower floor of the building. Assembled so as to surround the side circumference of the building, by lifting the guide strut material with a crane attached to the shield, by connecting to the upper end of the guide strut,
The guide pillars are sequentially extended upward, and the side wall of the uppermost floor of the building is surrounded and surrounded by the shield that is sequentially raised by the extended guide pillars as a guide. To dismantle each floor in sequence, every time the floor to be dismantled moves downward, guide the guide pillar,
A building in which the shield is sequentially lowered to enclose and surround the side circumference of the floor to be dismantled, the guide strut material at the upper end of the guide strut is removed, and the crane is hung down and the guide strut is sequentially shortened downward. In the dismantling method, the shield is lifted or lowered by hoisting or rewinding the rope connected to the shield with a winch, and the rope is provided with a load detection device that detects a force applied to the rope. The method of dismantling a building is characterized in that moving pulleys are combined so that the force applied to the winch is reduced. 4. The building demolition method according to claim 1, wherein a demolition machine is installed on a lower floor next to a floor to be demolished of the building to demolish the floor to be demolished. A demolition method for buildings that is characterized by that. 5. The building demolition method according to claim 1, wherein the roof is attached so as to be in close contact with the upper portion of the shield when the building is demolished. The demolition method for the building. 6. The demolition method for a building according to claim 5, wherein the roof is provided with a water collecting hole. 7. The building demolition method according to claim 1, wherein the demolition machine used for demolition of each floor to be demolished is hoisted or hung by the crane. Dismantling method. 8. The building demolition method according to claim 1, wherein a demolition machine used for demolition of each floor to be demolished is installed on a lower floor next to the floor to be demolished. Depending on the upper and lower mounts,
A method of dismantling a building, characterized by hoisting or hoisting through an opening inside the building. 9. The demolition method for a building according to claim 1, wherein a peripheral wall surface of the shield is used as an advertising medium. 10. The demolition method for a building according to claim 1, wherein the shield moves horizontally with respect to the guide column by contacting the surface of the guide column. A demolition method for buildings, which is equipped with steady rests that can limit 11. The building demolition method according to claim 10, wherein the steady rest is provided with a guide rolling wheel capable of rolling up and down on a surface of the guide strut. Demolition method. 12. The method of dismantling a building according to any one of claims 1 to 11, wherein a supporting member is fixed to the guide pillar during the dismantling work of each floor to be dismantled. A method for dismantling a building, characterized in that the shield is supported by a material.