JP6712501B2 - High-rise building demolition system and demolition method - Google Patents

Description

The present invention relates to a dismantling system and a dismantling method for a high-rise building, wherein the lowering operation of the external curing equipment of the high-rise building and the lowering operation of the lifting equipment for carrying out the dismantled waste material are independently operated, thereby the progress of the dismantling work. The present invention relates to a demolition system and a demolition method for a high-rise building that realizes efficient demolition work for a building.

In recent years, there has been a demand for demolition work of existing high-rise buildings in urban areas for regional redevelopment including rebuilding. In the city center, the dismantling work that causes noise, etc. needs to be carried out efficiently in consideration of the surrounding environment. Therefore, various dismantling works are being carried out in a closed space where the entire existing building, for example, the rooftop part is covered with a temporary roof, and the outer peripheral parts of the upper and lower floors where the building is dismantled are covered with curing panels. .. In such demolition work, in many cases, a temporary roof, a curing scaffold on the outer periphery of the building, and a lifting device that lowers the entire equipment of the soundproof panel according to the progress of the demolition of the building are provided.

Although various lifting devices used for this purpose have been developed, the lifting frame unit disclosed in Patent Document 1 is composed of a column frame, an inner frame, and an outer frame that are relatively movable in the vertical direction. The frame is provided with a screw rod (screw rod) that can be rotated by a drive device, and the inner frame is provided with a nut that is screwed onto the screw rod and that is rotated in the frame so as to be unrotatable. By repeating the lowering motion of both frames by a predetermined stroke by the rotation of the screw rod and the supporting motion to the support (building frame etc.), the building part where the lifting device is installed is lowered according to the progress of the dismantling. It is like this.

Further, a fixing device for securely fixing the elevating frame unit disclosed in Patent Document 1 to the outer periphery of a building has also been proposed (Patent Document 2). The fixing device disclosed in Patent Document 2 includes a housing formed by assembling a steel material that is fixed to a part of a building, and a bracket on which a tip side of the housing projects to the outside of the building and pins are arranged. The fitting portion provided on the lifting device side is detachably fitted to the pin to support and fix the lifting device. As a result, the lifting device is securely and quickly fixedly supported on the building side.

JP, 2014-185435, A JP, 2013-47459, A

By the way, when the upper part of the building is covered by the temporary roof, it is not possible to install a tower crane or the like for carrying out waste materials generated when the building is disassembled. For this reason, it is necessary to provide a delivery route inside the building from which the demolition waste material can be lowered from the floor where the demolition work is being performed to the ground floor. In this case, generally, a part of the floor slab at the same position on all floors is removed and an opening is provided to form an unloading shaft (vertical shaft) that penetrates the building in the vertical direction, and the unloading shaft is used to dismantle the building. Measures such as lowering waste materials from the upper floor to the ground floor (the floor to which the material is carried out to the outside) are taken. In this case, on the floor where the dismantling work is being performed, a work of unloading the dismantled waste material is performed to laterally pull it to the shaft, and a work of subsequently lowering the interior of the unloading shaft is generated. In order to perform these operations consistently, equipment such as Telha (transverse crane) is installed. At this time, the span of the girder that becomes the traverse rail of Telha is the span of the temporary roof supported by the lifting device and the fixing device disclosed in Patent Documents 1 and 2 on the outer periphery of the building so as to cover the entire building. It is necessary to install them together. Therefore, in a building with a large flat area, the span of the traverse rail becomes large, and the lifting performance of the crane (lifting equipment) that can be installed is limited.

In addition, when the traverse rail of Telha is unloaded and installed independently on the shaft, a support member that supports the traverse rail is attached to the existing pillar etc. each time the dismantling work on each floor is completed, and the traverse rail of each floor is installed. The additional work of repeatedly installing and dismantling occurs, and the efficiency of the dismantling work cannot be improved. Therefore, an object of the present invention is to solve the problems of the above-described conventional technology, and when performing the dismantling work of a building, the lowering operation of the lifting device of the temporary roof covering the building and the unloading of the dismantled waste material to the outside of the building. An object of the present invention is to provide a dismantling system and a dismantling method for a high-rise building, which enables continuous operation independently of the descending operation of the device.

In order to achieve the above object, the demolition system for a high-rise building of the present invention is disposed on the outer periphery of an existing building, supports external curing equipment that covers the existing building, and, according to the progress of the demolition work , the existing building. Supported by an outer peripheral support member removably attached to the pillar, and an outer peripheral lifting device for lowering the external curing equipment, and an unloading provided so as to penetrate from the dismantling work floor of the existing building to the unloading floor. It is installed at the corner of the opening of the shaft and supports the lifting equipment that operates to carry out the dismantling waste material from the dismantling work floor, and as the dismantling work progresses, the pillars of the existing building can be reassembled. And an internal lifting device for lowering the lifting equipment , which is supported by an internal support member attached to the outer peripheral lifting device and the internal lifting device independently of each completion of dismantling work on each floor. It is characterized by descending with a stroke of a floor.

A screw rod that is disposed on the outer periphery of an existing building, supports external curing equipment that covers the existing building, and is supported by an outer peripheral support member that is removably attached to a pillar of the existing building according to the progress of dismantling work. An outer peripheral lifting device for lowering the external curing equipment by using, and the dismantling provided at the corner portion of the opening of the unloading shaft provided so as to penetrate from the dismantling work floor of the existing building to the unloading floor. Supports a lifting facility that operates to carry out dismantled waste materials from the working floor, and uses a screw rod supported by an internal support member removably attached to the pillars of the existing building as the dismantling work progresses. And an internal lifting device for lowering the lifting equipment, and each time the dismantling work on each floor is completed, the outer peripheral lifting device and the internal lifting device are independently lowered in a stroke for one floor. It is a feature.

The outer peripheral elevating device is supported by the outer peripheral support member attached to the outer peripheral pillar of the existing building, and a temporary roof covering the upper part of the existing building, and the outer periphery of the existing building in a predetermined range above and below the floor on which dismantling work is performed. It is preferable to support an external curing scaffold surrounding the.

The internal lifting device is preferably supported by the internal support member attached to an internal pillar located at a corner portion of the opening of the unloading shaft.

It is preferable that the inner support member has a frame extending from the inner pillar toward the opening at an angle of about 45° with a beam direction .

As an invention of a method for dismantling a high-rise building, an external curing equipment that covers an outer periphery and an upper portion of an existing building is an outer peripheral lifting device using a screw rod supported by an outer peripheral support member removably attached to a pillar of the existing building. Installed to support, provided in the existing building, an unloading shaft that penetrates from the dismantling work floor to the unloading floor, and at the dismantling work floor, a lifting equipment capable of unloading dismantling waste material through the unloading shaft , At the stage where the dismantling work on the dismantling work floor has been completed, installed by being supported by an internal lifting device using a screw rod supported by an internal supporting member removably attached to the pillar of the existing building , Operating the internal lifting device to lower the lifting equipment by one floor, then operate the outer peripheral lifting device independently of the operation of the internal lifting device to lower the external curing equipment, and sequentially dismantling work floors. It is characterized by moving to the lower floor and proceeding with dismantling work.

Explanatory drawing which showed partially the side view of the state which applied one Embodiment of the demolition system of the high-rise building of this invention to the high-rise building demolition. Explanatory drawing which partially showed the state which applied one Embodiment of the demolition system of the high-rise building of this invention to the high-rise building demolition in planar view. The top view and side view showing the supporting member of the lifting device used by one embodiment of the dismantling system of the high-rise building of the present invention. Explanatory drawing which showed typically the high-rise building demolition work procedure by one Embodiment of the high-rise building demolition system of this invention.

Hereinafter, a configuration of an embodiment of the demolition system 10 for a high-rise building of the present invention and a series of procedures for demolition work will be described with reference to the accompanying drawings.

FIG. 1 is an explanatory view schematically showing a state of dismantling work in which an existing high-rise building 1 (hereinafter referred to as building 1) is sequentially dismantled from the upper floor using the high-rise building dismantling system of the present invention. The figure shows a state in which several floors have already been demolished from the roof. In the building 1 to be dismantled, the dismantling work on the (N+1)th floor by the dismantling heavy equipment 2 deployed on the Nth floor is in progress.

The lifting device 100 of the dismantling system 10 for a high-rise building of the present invention includes an outer circumference lifting device 110 for lowering the outer circumference curing equipment 20 of a building according to the progress of the dismantling work, and a lifting equipment 30 for carrying out dismantled waste materials. It is composed of an internal elevating device 120 that descends according to the progress. Hereinafter, the configurations and operations of the above-mentioned facilities will be described. In the embodiment of the present invention, the outer circumference lifting device 110 and the inner lifting device 120 are distinguished in name by installation position and use, but their configurations and lifting operations are the same.

[Outer peripheral curing equipment and outer peripheral lifting device]
The outer periphery of the building is connected to the outer peripheral elevating devices 110, which are supported by outer peripheral supporting units installed on a plurality of existing pillars of the building, and the outer peripheral elevating devices 110 serving as outer peripheral curing equipment 20, by connecting walls to the outer peripheral surfaces. The external curing scaffold 22 erected via the anchor 21, the soundproof panel 23 attached to the outer surface of the external curing scaffold 22, and the outer peripheral elevating device 110 arranged side by side in a row were installed so as to connect to each other. A temporary roof 26 composed of a truss structure frame 25 that is supported by the support beams 24 and covers the upper part of the building is arranged.

The lifting device 100 used in the present invention (in the description of the contents common to the outer circumference lifting device 110 and the inner lifting device 120, hereinafter, simply referred to as the lifting device 100) is equivalent to the device disclosed in Patent Document 1. It is a known device having a function. That is, a screw rod that is a drive transmission mechanism is held by the outer frame, and a nut that is screwed with the screw rod is held by the inner frame so as to be non-rotatably liftable. By rotating the screw rod incorporated in the outer frame with an electric motor, relative movement of the outer frame holding the screw rod and the inner frame holding the nut is controlled, and a frame or the like supported by the outer frame of the elevating device (in the present invention, the outer circumference). The curing equipment and lifting equipment) are moved up and down with a predetermined stroke. As the elevating mechanism included in the elevating device 100, a combination of a screw rod and a nut, or a center hole type hydraulic jack capable of elevating while supporting the step rod with a predetermined stroke may be used.

The elevating device 100 elevates and lowers the device itself by applying a reaction force to the support body (building frame in the present invention) during elevating and lowering. Therefore, in the case of the present invention, during elevating the elevating device 100 (in the demolition work, It is important to support the main body of the apparatus by the support units 130 and 140 that surely support the reaction force of (the descending operation) on the existing pillars of the building as a support.

For example, in the case of the outer peripheral lifting device 110 used in the present invention, as shown in FIG. 1, when disassembling the N+1 floor, the inner frame and the outer frame of the device are lower floors (N floor, (N-1 ) Floors) are independently supported by two outer peripheral support units 130. Further, when descending one floor from the dismantled (N+1) floor, a new support unit (not shown) is provided in the lower floor ((N-2) floor), including the (N-2) floor. Between the support units of the floors, the support positions of the inner frame and the outer frame are exchanged, and the lowering operation and the supporting operation of the inner frame and the outer frame of the apparatus are repeated to lower the first floor. The support unit on the Nth floor is removed, and the lifting device is supported by two outer peripheral support units 130 on the lower floors ((N-1)th floor and (N-2)th floor).

FIG. 2 is a plan view schematically showing a planar layout of a part of the disassembly system shown in FIG. As shown in FIGS. 1 and 2, the outer curing scaffold 22 and the temporary roof 26 are supported by a plurality of outer peripheral elevating devices 110 arranged at predetermined intervals in accordance with the existing arrangement of the outer peripheral columns 3. The descent amount of each outer circumference elevating device 110 is controlled by a control means (not shown) so that the outer curing scaffolding 22 and the temporary roof 26 can be lowered horizontally while maintaining a stable state without being twisted. Quantity) is controlled synchronously. It should be noted that, depending on the total weight and weight balance of the external curing scaffold 22 and the temporary roof 26, the outer peripheral elevating device 110 should be arranged at a plurality of span intervals in consideration of the arrangement of the outer peripheral pillars 3 or set an appropriate fulcrum position. Is preferred.

The outer peripheral elevating device 110 that supports the outer curing scaffold 22 and the temporary roof 26 is fixedly held to the outer peripheral pillars 3 arranged at the same position on the floor of each floor via the outer peripheral support units 130 at two locations. As shown in FIG. 2, the outer peripheral support unit is formed of a shaped steel assembly material which is attached so as to surround the outer peripheral surface of the outer peripheral column 3 and which has a generally square V shape in plan view. Each outer peripheral support unit for fixing and holding the outer peripheral elevating device 110 to the outer peripheral pillar 3 is made into parts, and can be quickly attached to a predetermined position of the target outer peripheral pillar 3 in accordance with the lowering work of the outer peripheral elevating device 110. .. On the other hand, a bracket (not shown) is attached to the outer peripheral post 3 at a position corresponding to the attachment position of the outer peripheral support unit. As a result, the outer peripheral support unit 130, which has been made into parts, is placed on the bracket, and the members are bolted to each other, so that the parts can be easily and quickly assembled at the predetermined positions.

[Lifting equipment and internal lifting means]
In the present invention, as described above, the unloading shaft 5 is provided inside the building in order to carry out dismantled waste materials such as steel frames, concrete debris, and reinforcing bars generated during dismantling to the outside of the building. In the unloading shaft 5, for example, in the present embodiment, as shown in FIGS. 1 and 2, a slab in a range surrounded by four adjacent inner columns 6 is cut out to form an opening 7, and the unloading shaft 5 is opened from the top floor in the building 1. An opening 7 is provided at the same location on each floor up to the floor where the waste material is to be carried out (hereinafter referred to as the carry-out floor), so that the material is vertically penetrated.

Further, in the present embodiment, a telha (transverse crane) is installed as a lifting facility 30 for lowering waste material from the opening 7 on each floor of the unloading shaft 5. The Telha 30 is made of I-shaped steel or the like supported by a support beam 32 that is supported by internal support units 140 that are attached to the internal columns 6 located at the four corners of the opening 7, and that is supported by a support beam 32 that is installed on the upper end of the internal lifting device 120. The traverse rail 33 and a hoist 34 capable of traveling along the traverse rail 33 are configured. Since the traverse rail 33 is installed above the opening 7 so as to project a predetermined length from both ends of the opening 7, by running the hoist 34 suspending the dismantled waste material along the traverse rail 33, as shown in FIG. As indicated by the white arrow, it is possible to unload the demolition waste material generated on the floor (demolition work floor) where the demolition work is being carried out, laterally pull it to the shaft 5, and further to the unloading floor through the unloading shaft 5. ..

The internal elevating device 120 can elevate and lower the supported Telha 30 in a predetermined stroke. The descending amounts of the four internal elevating devices 120 are controlled by the control means (not shown) so that the supporting beams 32 and the traverse rails 33 are maintained in a horizontal state in a stable state without being twisted and are lowered ( The rotation amount) is synchronously controlled. In the present invention, both the internal elevating device 120 and the outer elevating device 110 can independently control the rotation of the screw rod by a single control device.

Here, the configuration of the internal support unit 140 will be described with reference to each of FIGS. Since the internal support unit 140 is attached to the internal columns 6 located at the four corners of the opening 7, the internal support unit 140 has a planar shape that considers the relationship between the installation position of the internal lifting device 120 and the cross-sectional shape of the internal column 6. That is, as shown in FIG. 3A, the fixed frame 141, which is the main member, has a substantially V shape when viewed in a plan view in which the fixed frame 141 is bent at a middle angle of 45°. Since the two fixed frames 141 are connected symmetrically with respect to the diagonal line of the inner column 6 at the end portions 141b on the short side 141a side at the corners of the inner column 6, the long sides 141c of the fixed frame 141 are parallel to each other. .. The stiffening member 142 and the connecting member 143 to the internal elevating device 120 are fixed by bolts so as to connect the long sides 141c of the parallel fixed frame 141. At the corresponding position of each fixed frame 141 immediately above the existing beam 8, a bundle column 144 that supports the fixed frame 141 is erected on the existing beam 8. The upper end of the bundle column 144 is fixed to the fixed frame 141, and the height adjusting bolt 144a is attached to the lower end. By using the height adjusting bolt 144a, the level of the long side 141c can be easily adjusted when the fixed frame 141 is assembled (FIG. 3B). On the other hand, a bracket 145 that supports the short side 141a of the fixed frame 141 is attached to a predetermined height on the side surface of the inner column 6. Thus, the internal support unit 140, which is made into parts, is placed on the bracket 145, and the members are bolted to each other, so that the internal support unit 140 can be easily and quickly assembled at a predetermined position. Due to the bundle columns 144 and the brackets 145, the internal support unit 140 surely bears the vertical load acting (the total weight of the Telha 30, the reaction force when the internal lifting device 120 is moved up and down, etc.).

As described above with reference to FIG. 3, the shape of each member of the internal support unit 140 is determined according to the cross-sectional shape of the internal column 6. For example, since the length of the short side 141a of the fixed frame is substantially equal to the length of one side of the inner column 6, if the inner column 6 has a square cross-sectional shape, the two fixed frames 141 can be seen in a plan view. It is made into a symmetrical shape (the same shape can be turned upside down to correspond). Therefore, the fixed frame 141 attached to the inner pillar 6 has a shape protruding from the inner pillar 6 by 45° toward the opening 7. Further, the inner frame and the outer frame of the internal lifting device 120 are bolted to the connecting member 143 that connects the ends of the two fixed frames 141, and each internal lifting device 120 is connected to each edge at the corner of the opening 7. It is placed at 45°. In other words, since the bending angle of the fixed frame 141 is appropriately set according to the cross-sectional shape of the inner pillar 6, the two fixed frames 141 to be connected do not have a symmetrical shape when the cross-sectional shape of the inner pillar 6 is not square. However, it is preferable to determine the shape (side length) of each fixed frame 141 so that the angle at which the fixed frame 141 projects toward the opening 7 side is 45°.

[Dismantling work by dismantling system]
Hereinafter, the demolition work by the elevating means and the descent operation of each facility in the demolition system for a high-rise building according to the present invention will be described with reference to FIGS. 1 and 4.
FIG. 1 shows a dismantling work state on the (N+1)th floor. At this time, the outer circumference elevating device 110 and the inner elevating device 120 are independently supported by the outer circumference supporting unit 130 and the inner supporting unit 140 at two places on the lower floor (Nth floor, (N-1)th floor). A plurality of dismantling heavy machines 2 are carried into this floor, and the dismantling work of beams, slabs, walls, columns, etc. is proceeding in a procedure that considers the stability of the structure and the safety of the work. Dismantled waste materials such as steel frames, concrete debris, and rebars generated during the dismantling work are horizontally pulled to the position of the opening 7 of the unloading shaft 5 using the Telha 30, and further continuously to the unloading floor where the external unloading route is provided. Be unloaded.

FIG. 4A shows a state in which the dismantling work on the (N+1)th floor is completed. From this state, as shown in FIG. 4B, the internal lifting device 120 is lowered by one floor. For this purpose, a new support unit is provided downstairs ((N-2)th floor) between the internal support units 140 of three floors (Nth floor, (N-1)th floor, (N-2)th floor). The supporting positions of the inner frame and the outer frame are exchanged, and the lowering operation of the inner frame and the outer frame and the supporting operation are repeated to lower the lifting equipment (Telha 30) by one floor. After that, the support unit on the Nth floor is removed, and the internal lifting device 120 that supports the Telha 30 is supported by the two internal support units 140 on the (N-1)th floor and the (N-2)th floor. Similarly, as shown in FIG. 4C, the outer peripheral support unit of the outer peripheral elevating device 110 is provided downstairs ((N-2)th floor), and three floors (Nth floor, (N-1)th floor, ( Between the outer peripheral support units on the (N-2)th floor), the supporting positions of the inner frame and the outer frame of the outer peripheral elevating device 110 are exchanged, and the lowering operation of the inner frame and the outer frame and the supporting operation are repeated, and the outer periphery curing equipment 20 ( The outer curing scaffold 22 and the temporary roof 26) are lowered by one floor. After that, the outer peripheral support unit on the Nth floor is removed, and the outer peripheral lifting device 110 supporting the outer peripheral curing equipment 20 is supported by the two peripheral support units 130 on the (N-1)th floor and the (N-2)th floor. (FIG.4(c)). From this state, the dismantling work on the Nth floor is performed (see FIG. 4D). After that, the descending work of the inner lifting device 120 (FIG. 4E), the lowering work of the outer lifting device 110, and the dismantling work (for example, (N-1) floor, FIG. 4F) are sequentially performed in the same procedure. By dismantling all floors continuously, the building can be dismantled efficiently and safely.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims. That is, an embodiment obtained by combining technical means appropriately modified within the scope of the claims is also included in the technical scope of the present invention.

1 High-rise building 2 Heavy equipment for dismantling 3 Outer pillar 5 Unloading shaft 6 Inner pillar 7 Opening 10 Dismantling system 20 Outer peripheral curing equipment 22 External curing scaffolding 26 Temporary roof 30 Lifting equipment (Telha)
100 Lifting device 110 Peripheral lifting device 120 Internal lifting device 130 Perimeter support unit 140 Internal support unit 141 Fixed frame

Claims (6)

Arranged on the outer periphery of the existing building, supporting the external curing equipment that covers the existing building, depending on the progress of the demolition work, is supported by the outer peripheral support member removably attached to the pillar of the existing building, A peripheral lifting device for lowering external curing equipment,
Lifting equipment that is installed in the corner portion of the opening of the unloading shaft provided so as to penetrate from the dismantling work floor to the unloading floor of the existing building and that operates to carry out dismantled waste materials from the dismantling work floor And an internal elevating device for lowering the lifting equipment , supported by an internal support member removably attached to a pillar of the existing building in accordance with the progress of dismantling work,
A dismantling system for a high-rise building, wherein each time the dismantling work on each floor is completed, the outer peripheral elevating device and the inner elevating device are independently lowered in a stroke for one floor. A screw rod that is disposed on the outer periphery of an existing building, supports external curing equipment that covers the existing building, and is supported by an outer peripheral support member that is removably attached to a pillar of the existing building according to the progress of dismantling work. A peripheral lifting device for lowering the external curing equipment by using
Lifting equipment that is installed in the corner portion of the opening of the unloading shaft provided so as to penetrate from the dismantling work floor to the unloading floor of the existing building and that operates to carry out dismantled waste materials from the dismantling work floor And an internal lifting device for lowering the lifting equipment using a screw rod supported by an internal support member removably attached to a pillar of the existing building according to the progress of dismantling work, A dismantling system for a high-rise building , wherein each time the dismantling work on each floor is completed, the outer peripheral elevating device and the inner elevating device are independently lowered in a stroke for one floor . The outer peripheral elevating device is supported by the outer peripheral support member attached to the outer peripheral pillar of the existing building, and a temporary roof covering the upper part of the existing building, and the outer periphery of the existing building in a predetermined range above and below the floor on which dismantling work is performed. The demolition system for a high-rise building according to claim 1 or 2 , which supports an external curing scaffold surrounding the building. The demolition of a high-rise building according to claim 1 or 2, wherein the internal lifting device is supported by the internal support member attached to an internal column located at a corner portion of the opening of the unloading shaft. system. The demolition system for a high-rise building according to claim 4, wherein the inner support member has a frame extending from the inner pillar toward the opening at an angle of about 45° with a beam direction . External curing equipment covering the outer circumference and the upper part of the existing building is supported and installed by an outer circumference lifting device supported by an outer circumference supporting member removably attached to the pillar of the existing building, and disassembled in the existing building. A unloading shaft that penetrates from the working floor to the unloading floor is provided, and on the dismantling work floor, a lifting facility capable of unloading dismantling waste material through the unloading shaft is attached to the pillars of the existing building in a remountable manner. It is supported and installed by the internal lifting device supported by the internal support member ,
When the dismantling work on the dismantling work floor is completed, the internal lifting device is operated to lower the lifting equipment by one floor, and then the outer peripheral lifting device is operated independently of the operation of the internal lifting device. A method for dismantling a high-rise building, characterized by lowering the external curing equipment, moving the dismantling work floor to a lower floor in order, and proceeding with the dismantling work.

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