JP2015081163A - Hanging tool for transporting demolished object, and transportation method of demolished object - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hanging tool for transporting a demolished object and a transportation method of a demolished object, in which welding and mounting work of an anchor are eliminated, for improved workability and economy, resulting in transportation of a demolished object properly with a crane.SOLUTION: There are provided a balance 30 which is hung from a transportation machine for supporting, a plurality of hanging cables 31 of which upper ends are connected to the balance 30, a plurality of clamps 32 which are connected to lower ends of the plurality of hanging cables 31 respectively, and inserted into a gap formed on an end part side of a demolished object 6, to be engaged with the demolished object 6 for disposing, a demolished object holding frame 33 in which the hanging cable 31 is inserted into an insert hole 33a while enclosing the demolished object 6, being press-contacted to the demolished object 6 for fixing, and a clamp connection holding tool 34 which, with the plurality of clamps 32 engaged with the demolished object 6, connects and holds as one body.

Description

  The present invention relates to a hanging jig for a demolished article and a method for conveying the demolished article, which are suitable for use in conveying a demolished article such as a pillar in a demolishing work of a building, for example.

  For example, when a building such as an office building is dismantled, if the building is an S structure (steel structure), building components such as floors, beams, pillars, walls, etc. are crushed at each level or disassembled into individual members. Then, carry it out to the ground floor and proceed with the demolition work. For example, when the site is small or the building is high-rise, a tower crane is used as a lifting machine, and the building is dismantled sequentially from the upper floor.

  In addition, when dismantling an S structure building, steel beams and columns such as H-shaped steel are preliminarily supported by supporting works and plates, and a cutting machine such as a gas burner or attachment of a hydraulic excavator is attached. The steel member is disassembled by cutting using a dismantling machine that has been changed from the bucket to the cutter. Alternatively, when the steel member is cut with a gas burner or the like, the steel member to be cut and disassembled is supported with a lifting machine such as a tower crane, and the remaining steel portion is completely cut and separated in this state. A steel member is suspended on the ground by a lifting machine (see, for example, Patent Document 1 and Patent Document 2).

  When dismantling RC (reinforced concrete) and / or SRC (steel reinforced concrete) buildings, generally use a dismantling machine (crusher) with the excavator attachment changed from a bucket to a breaker. They are crushed and the internal steel frames and rebars are cut with a cutting machine such as a gas burner, or the attachment is replaced with a cutter.

  On the other hand, when a RC or SRC building is crushed or cut using a breaker or cutter, there will be significant noise and vibration, and dust will be scattered, which will adversely affect the environment in the vicinity and the work site. Is big. For this reason, depending on the situation around the dismantling site, it may be required to interrupt the work or to shorten the work time. In addition, there are cases in which pillars and walls collapse during the dismantling work, and the RC and SRC dismantling work requires special attention in terms of safety.

  Furthermore, in order to break a large steel frame member, a large dismantling machine (crusher) is required. In addition, it is often necessary to reinforce the work floor to withstand the weight of this large heavy machine. In this case, for example, the floor is reinforced by temporary support work from the lower floor, and then the target floor is dismantled. I need it. Also, when breaking a large steel frame, the cutter blade of the demolition work machine is often missing, and in the RC and SRC demolition work, attachments are frequently replaced, which is also a high cost. Become.

  For this reason, in recent years, a method has been put into practical use in which concrete and steel frames and reinforcing bars are simultaneously cut using a wire saw (wire saw device), and building components such as RC, SRC beams, columns, and walls are disassembled. Yes. In the wire saw device, an endless wire saw is wound around a plurality of pulleys, and the wire saw is sequentially rotated in one direction by driving of a drive pulley. Then, by cutting this rotating wire saw, it is possible to cut and cut the RC and SRC building components, and as with the case of dismantling the S building, noise and vibration The dismantling work can be carried out while suppressing generation and scattering of dust.

  In general, when a building component member is cut with a wire saw device, the wire saw is wound around the member to be cut in advance, and the rotating wire saw is cut from the back side of the member. The member is cut while pulling on (while pulling). That is, it is easy to adjust the cutting force of the wire saw at the time of cutting, and it is possible to easily obtain a desired cutting force. Is disconnected.

  At this time, the RC and SRC building components to be cut and dismantled are supported by being suspended by a lifting machine such as a tower crane, and in this state, the cutting work is performed with a wire saw, and the cutting is completely cut and separated. A building component to be demolished (dismantled) is suspended on the ground by a lifting machine.

JP 2012-1902 A JP-A-1-271393

  On the other hand, when cutting and dismantling objects such as S-made pillars and transporting this dismantling object with a crane, a hanging piece (hanging tool) is welded to the cutting and dismantling object beforehand, and this hanging piece is slung. Support the object of cutting and dismantling at the time of cutting. Then, the dismantled object to be disassembled that has been completely cut and separated is suspended and supported so that the dismantled object can be conveyed as it is.

  Also, when cutting and dismantling objects such as RC and SRC pillars, and transporting this dismantled article with a crane, a chemical anchor is placed in advance on the object to be cut and disassembled and suspended using a chemical anchor. Attach a piece (suspender). Then, by hanging on the suspension piece, the object to be cut and disassembled at the time of cutting is supported, and the dismantled material after being completely cut and separated is supported by being suspended and transported.

  However, the dismantling method described above requires a work of welding the hung piece to the object to be cut and dismantling or placing a chemical anchor to attach the hung piece, especially for the work of attaching the hung piece using the chemical anchor. The labor and time are required, and the mounting work of the suspension piece is one factor that causes deterioration of workability and further increases the cost of the dismantling work.

  In addition, when there is a large beam, such as a panel zone, when a RC or SRC column or other object to be dismantled is dismantled, a method is often used in which a chain is tied and suspended under the large beam. Depending on the heavy capacity, it may be necessary to divide the panel zone. In this case, the problem is how to dismantle and dismantle the pillars of the dismantled material (such as tube-type pillars) separated from the panel zone. Become.

  In view of the above circumstances, the present invention eliminates welding and anchor attachment work, improves workability and economy, and enables a dismantled article to be suitably conveyed by a crane, It aims at providing the conveyance method of a demolished thing.

  In order to achieve the above object, the present invention provides the following means.

  The lifting jig for transporting the dismantled material of the present invention includes a balance supported by a transporter, a plurality of suspension cords having upper ends connected to the balance, and lower ends of the plurality of suspension cords. A plurality of clamps which are provided to be connected to each other, inserted into a gap formed on the end side of the dismantled object and engaged with the dismantled object, and the suspension cable body inserted through the insertion hole The dismantled object holding frame that is disposed so as to surround the dismantled object and is fixedly pressed against the dismantled object, and a clamp connection that integrally connects and holds the plurality of clamps in a state of being engaged with the dismantled object. It is characterized by comprising a holder.

  The method for transporting a dismantled product according to the present invention uses the clamp attachment step of inserting and installing the plurality of clamps in the gaps of the cutting grooves formed when the dismantled material is cut, and using the clamp connection holding tool. A clamp holding step for holding the clamps integrally with the dismantled object, and a dismantled object holding frame in which the dismantled object holding frame disposed so as to surround the dismantled object is pressed against and fixed to the dismantled object An attachment step, and a dismantled material transporting step of lifting the balance, which is connected to the plurality of clamps and the dismantled material holding frame via the suspension cable body, by means of a transporter, and suspending and transporting the dismantled material. It is characterized by being.

  In the lifting jig for transporting the dismantled material and the method for transporting the dismantled material using the lifting jig of the present invention, compared to the conventional method using a chemical anchor for transporting the dismantled material, the labor of anchoring is reduced. In addition, it is possible to eliminate the need to avoid interference with the anchor by reinforcing bars, and it is possible to efficiently transport the dismantled object. In addition, compared with the case of using a conventional chemical anchor, it is possible to realize a significant cost reduction of the dismantling work.

It is a perspective view which shows the state which has demolished the building. It is a figure which shows a wire saw apparatus. FIG. 3 is a view taken along line X1-X1 in FIG. It is a figure which shows the dismantling work machine with which the wire saw apparatus was mounted | worn. It is a figure which shows the driving | running procedure of the wedge member at the time of cut | disconnecting the column member (disassembly thing) of cutting | disconnection object by a push-cut-type wire saw apparatus. It is a figure which shows the suspension jig | tool for conveyance of a dismantled material which concerns on one Embodiment of this invention. It is a figure which shows the state which has lowered | hung the hanging jig | tool for conveyance of a dismantled object toward a dismantled object in the conveyance method of the dismantled object which concerns on one Embodiment of this invention. It is a figure which shows the state which engaged the clamp of the suspension jig | tool for dismantled material conveyance with the dismantled material in the conveyance method of the dismantled material which concerns on one Embodiment of this invention. It is a figure which shows the state which connected the clamps with the clamp connection holder of the suspension jig | tool for dismantled material conveyance in the conveyance method of the dismantled material which concerns on one Embodiment of this invention. It is a figure which shows the state which crimped and fixed the dismantled material holding | maintenance frame of the hanging jig for dismantled material conveyance in the dismantled material conveyance method which concerns on one Embodiment of this invention. It is a figure which shows the state which is conveying the dismantled object using the lifting jig for dismantled object conveyance in the conveyance method of the dismantled object which concerns on one Embodiment of this invention. It is a figure which shows the state which unloads the demolished material in the conveyance method of the demolished material which concerns on one Embodiment of this invention.

  Hereinafter, with reference to FIG. 1 to FIG. 12, a lifting jig for dismantling material transport and a method for transporting dismantling material according to an embodiment of the present invention will be described.

  First, in the present embodiment, description will be made assuming that a high-rise building such as an office building is dismantled. Further, the building components such as the pillars and beams, walls and floors of the building (floor slab members, beam members, column members, wall members, etc.) are constructed by RC construction and / or SRC construction.

  In the present embodiment, the building is appropriately covered with a curing material, and the building is sequentially disassembled from the higher floor (upper floor) of the building. As shown in FIG. 1, for example, a tower crane (lifter / transporter) 2 for suspending members disassembled in blocks from the upper floor (upper floor) of the building 1 is an elevator hall of the building 1. It is erected using. Further, in the present embodiment, a dismantling work place for performing further dismantling / crushing processing / splitting processing on the block-shaped member (dismantling material) suspended by the tower crane 2 is provided adjacent to the building 1. .

  On the other hand, in the dismantling method of the present embodiment, a wire saw device and a blade cutter device are appropriately selected as cutting and disassembling means for building component members such as the floor slab member 3, the beam member 4, the wall member 5, and the column member 6 of the building 1. Used for.

  Incidentally, for example, as shown in FIGS. 2 and 3, the wire saw device 10 of the present embodiment is attached to a guide rail 12 that protrudes linearly from the adapter 11 with a tilt mechanism, and to the tip of the guide rail 12. A gripping mechanism 13 that grips members to be cut (column member 6 and beam member 4) and a wire saw 16 that is wound endlessly around a plurality of pulleys 14 and 15 are rotated in one direction by the rotational drive of the drive pulley 15. And a cutting mechanism 17 that is guided by the guide rail 12 and moves a part of the wire saw 16 back and forth in the front-rear direction.

  And as shown in FIG. 4, the wire saw apparatus 10 is replaced with the attachment bucket detachably attached to the tip of the arm 18c of the hydraulic excavator, and the dismantling work machine 18 including the wire saw apparatus 10 is configured. . Further, the dismantling work machine 18 includes a single operator from the driver's seat, a driving operation of the wire saw device 10, a turning operation of the upper turning body 18a of the dismantling work machine 18, a beam 18b provided on the upper turning body 18a, The arm 18c can be laid down and the lower traveling body 18d can be driven (traveling operation).

  Accordingly, the RC member and the RC member 6 and the column member 6 can be operated by appropriately operating the dismantling work machine 18 by freely operating, turning, and arm / beam up / down operation. Any position of the building component can be efficiently cut with the wire saw 16.

  In the building dismantling method of the present embodiment, the wire saw device 10 is used as much as possible when cutting and dismantling the building components of the building 1. In addition, when the member is cut using the wire saw device 10, the wire saw 16 is wound around the member, and the rotating wire saw 16 is attracted to the front and cut into the member from the back side. The rotating wire saw 16 is pressed against the member from the near side and cut, and the cut-off method of sequentially cutting to the back side is used as much as possible.

  Here, in the dismantling method (and the dismantling material transport method) of the present embodiment, as shown in FIG. 5, for example, the wire saw device 10 (or the blade cutter device) is connected to the lower end side of the column member 6 of the building 1 to be cut and dismantled. ), A plurality of wedge members 21 are driven into the cutting grooves 20 that are sequentially formed as the cutting progresses. As a result, the column member 6 (long dismantled product) 6 in a state where the column member 6 is completely cut and separated is provided with a predetermined gap of, for example, about 15 mm between the column member 6 and the lower column member 6. Held.

  On the other hand, in the dismantling method and the dismantling material transport method of the present embodiment, the column member (dismantling material) 6 to be cut and dismantling is used from the time of cutting or at the stage of cutting and separation using the lifting jig A for dismantling material transport. And is suspended and conveyed by the crane 2.

  As shown in FIG. 6 (see FIGS. 1 and 5, etc.), the lifting jig A for transporting the dismantled object is a square balance that is supported by hanging by hanging on a hook attached to the wire rope of the crane 2. , A balance 30 such as a frame balance, a rod balance, a plurality of suspension chains (suspending ropes) 31 whose upper ends are connected to the balance 30, and a plurality of suspension chains 31 connected to the lower ends of each of the suspension chains 31. A plurality of clamps 32 that are inserted into cutting grooves (predetermined gaps) 20 formed in the target pillar member 6 and engaged with the cut pillar member (disassembled object) 6 are inserted through the suspension chain 31. A dismantled object holding frame 33 that is disposed so as to surround the column member 6 while being inserted into the hole 33a and is fixed to the column member 6 by pressing, and a plurality of clamps 32 are engaged with the column member 6 of the dismantled object. Clamp connection that holds the unit together in a combined state It is constituted by a jig 34.

  As shown in FIGS. 6, 7, and 8, for example, the plurality of clamps 32 are integrally provided on a rectangular plate-like bottom plate portion 32a and two orthogonal sides of the bottom plate portion 32a, and orthogonal to the bottom plate portion 32a. And a pair of side wall portions 32b having a rectangular flat plate shape protruding upward or downward. The clamp 32 inserts the bottom plate portion 32 a into a cutting groove (predetermined gap) 20 formed by cutting the column member 6 having a square cross section, and brings the pair of side wall portions 32 b into surface contact with the side surfaces of the column member 6. So as to be engaged with the corners. In addition, the lower end of the suspension chain 31 whose upper end is connected to the balance 30 is connected to the clamp 32 to a suspension piece 32c integrally formed at the corners of the pair of side wall portions.

  When the column member (disassembled product) 6 is formed in a circular cross section, for example, the clamp 32 may be formed by including an arc-shaped side wall portion 32b that matches the curvature of the outer peripheral surface of the column member 6. . As a result, the bottom plate portion 32a is inserted into the cutting groove 20 formed by cutting the column member 6, and the side wall portion 32b is brought into surface contact with the outer peripheral surface (side surface) of the column member 6 so as to engage the clamp 32 in a predetermined position. Can be installed.

  For example, when the column member 6 is formed in a square cross section, the dismantled object holding frame 33 is configured by detachably assembling four rod-shaped holding member pieces disposed along four side surfaces. . In addition, each holding member piece is connected via a fastener such as a bolt for freely adjusting the connection position with the adjacent holding member piece, and the dismantled object holding frame is operated by operating these fasteners. The inner area can be adjusted in size. As a result, the dismantled object holding frame 33 is fixed to the column member 6 so that the column member 6 is securely pressed against the outer surface of the column member 6 even when the column member 6 has a different cross-sectional area (size). The member 6 can be fixed by pressure contact.

  Further, the dismantled object holding frame 33 is attached to the upper end side of the column member 6 by being pressed and fixed, and is inserted through a suspension chain 31 connected to the balance 30 through an insertion hole 33a formed in the holding member piece. ing.

  In addition, when the column member 6 is formed in a circular cross section, for example, a substantially annular shape in which one end of an elastically deformable band member is detachably connected to the inner surface side via a fastener. The dismantled object holding frame 33 may be used. The dismantled object holding frame 33 is wound so as to surround the column member 6 having a circular cross section, and the fastener is operated so that the inner area is reduced, so that the inner surface of the band-shaped member is the outer surface of the column member 6 ( The column member 6 can be attached so as to abut against the outer peripheral surface).

  The clamp coupling holder 34 includes, for example, an extendable clamp holding piece 34a. Both clamps are connected to and coupled to adjacent clamps 32, and the length of each clamp 32 is reduced to reduce the length of each clamp 32. While being pressed against each other, it can be held firmly engaged.

  The clamp coupling holder 34 may be configured to integrally hold a plurality of clamps 32 that are installed by being inserted into the cutting groove 20 formed by cutting the column member 6. That is, similarly to the dismantled object holding frame 33, for example, when the column member 6 is formed in a cross-sectional square shape, the four rod-shaped clamp holding pieces respectively arranged along the four side surfaces are detachably assembled, You may comprise and connect via the fastener for adjusting the connection position of an adjacent clamp holding piece freely.

  Accordingly, by operating the fastener, the clamp connection holder can adjust the inner area of the clamp member, and it is reliable even for the column member 6 having a different cross-sectional area (size) and a clamp having a different size. Each clamp holding piece can be fastened to the outer surface of the side wall portion 32b of each clamp 32 so as to be pressed, and the plurality of clamps 32 can be surrounded and held in pressure contact with the column member 6.

  And when conveying the demolition thing of the pillar member 6 of cutting and dismantling object using the lifting jig A for dismantling thing conveyance of this embodiment (disassembly method using the hanging tool of this embodiment, and a dismantling thing) 6 and 7, as shown in FIGS. 6 and 7, the balance 30 is hung and supported by a hook attached to the wire rope of the crane 2, and the upper end is connected to the balance 30 and the lower end is connected to the lower end. The upper end of the suspension chain 31 connected to the clamp 32 is connected to the balance 30 while being inserted into the insertion hole 33 a of the dismantled object holding frame 33.

  Next, as shown in FIGS. 6 and 8, the dismantling object holding frame 33 is inserted into the dismantling object holding frame 33 so as to surround the pillar member 6 and at a predetermined position on the upper end side of the pillar member 6. Deploy. At the same time, the clamp 32 is inserted and installed in the cutting groove 20 formed by cutting the lower end side of the column member 6 to be cut and disassembled with the wire saw device 10 (or blade cutter device) (clamp mounting step).

  Further, as shown in FIGS. 6 and 9, a clamp connection holding tool 34 is installed so as to integrally connect the plurality of clamps 32. In addition, the connection position of adjacent clamp holding pieces is adjusted by a fastener, each clamp holding piece is tightened so that each clamp 32 is pressed against the column member, and a plurality of clamps 32 are integrally pressed against the column member 6. Hold (clamp holding step).

  Further, as shown in FIGS. 6 and 10, the connection position of the adjacent holding member pieces is adjusted by operating the fasteners, the holding member pieces are brought into pressure contact with the column member 6, and the dismantled material holding frame 33 is attached to the column member. 6 is integrally pressed and fixed (disassembled object holding frame attaching step). Thereby, the pillar member 6 of the dismantled object is connected and held to the balance 30 and the wire rope of the crane 2 via the dismantled object holding frame 33 and the plurality of suspension chains 31.

  When the wire jig is pulled up by the crane 2 at the stage where the lifting jig A for dismantling material is attached in this way, as shown in FIGS. 6 and 11, the balance 30 and the plurality of suspension chains 31 are The column member 6 of the dismantled object that is pulled upward and is held by the dismantled object holding frame 33, the clamp 32, and the clamp connection holder 34 is suspended and conveyed. At this time, the upper end side of the column member 6 is held by the dismantled object holding frame 33, and the suspension chain 31 is inserted into the insertion hole 33a of the dismantled object holding frame 33, so that the mutual positions of the plurality of suspension chains 31 are Since it is fixed, the pillar member 6 of the dismantled material is suspended and conveyed in a stable state (dismantled material conveying step).

  In addition, when unloading the dismantled object 6 on the ground or the like, as shown in FIG. 12, for example, the dismantled object 6 is supported by the end thick angle 35 or the inclined load receiving device 36 while being tilted and laid down. For example, it is appropriately arranged and operated in a desired state (unloading step).

  Therefore, in the suspension jig A for dismantling material transport of this embodiment and the transport method of the dismantling material using the suspension jig A, compared with the conventional method using a chemical anchor for transporting the dismantling material 6. In addition, it is possible to eliminate the trouble of anchor processing, avoidance of interference with the anchor by reinforcing bars, and the like, and it is possible to efficiently transport the dismantled object 6.

  In addition, since the construction cost of the chemical anchor is not required as compared with the conventional method, according to the suspension jig A for dismantling material conveyance and the disassembly method using the suspension jig A of the present embodiment, the disassembly work is performed. Significant cost reduction can be realized.

  As mentioned above, although one embodiment of the hanging jig for dismantling material conveyance and the conveyance method of dismantling material concerning the present invention was described, the present invention is not limited to the above-mentioned one embodiment, and does not deviate from the meaning. The range can be changed as appropriate.

  For example, in this embodiment, the dismantled object is a column member, but it is not necessary to limit the dismantled object.

1 Building 2 Tower crane (lifter / transporter)
3 Floor slab members (building components / cutting / dismantling object / dismantling)
4 Beam members (building components / cutting / dismantling objects / dismantling objects)
5 Wall members (building components / cutting / dismantling objects / dismantling)
6 Pillar members (building components / cutting / dismantling / dismantling)
DESCRIPTION OF SYMBOLS 10 Wire saw apparatus 11 Adapter 12 with a tilt mechanism Guide rail 13 Grip mechanism 14 Pulley 15 Pulley (drive pulley)
16 Wire saw 17 Cutting mechanism 18 Demolition work machine 18a Upper turning body 18b Beam 18c Arm 18d Lower traveling body 20 Cutting groove (gap)
21 Wedge member 30 Balance 31 Suspension chain (suspending rope)
32 Clamp 32a Bottom plate part 32b Side wall part 32c Hanging piece 33 Dismantled object holding frame 33a Insertion hole 34 Clamp connection holding tool 35 End thick corner 36 Inclined load receiving device A Hanging tool T1 Horizontal direction T2 Vertical direction

Claims (2)

A balance supported by the conveyor
A plurality of suspension ropes having upper ends connected to the balance;
A plurality of clamps provided respectively connected to the lower ends of the plurality of suspension ropes, inserted into a gap formed on the end side of the dismantled object and engaged with the dismantled object,
A dismantled object holding frame that is disposed so as to surround the dismantled object while being inserted through the insertion hole through the insertion hole, and is fixedly pressed against the dismantled object; and
A lifting jig for conveying a dismantled object, comprising: a clamp connection holding tool that integrally connects and holds the plurality of clamps in a state of being engaged with the dismantled object. A method for transporting a demolished product using the lifting tool for transporting the demolished product according to claim 1,
A clamp attachment step of inserting and installing each of the plurality of clamps in a gap of a cutting groove formed when cutting the dismantled material,
A clamp holding step of holding the plurality of clamps integrally with the dismantled object using the clamp connection holder;
A dismantled object holding frame attaching step for fixing the dismantled object holding frame disposed so as to surround the dismantled object to the dismantled object;
A dismantled material transporting step of lifting the balance, which is connected to the plurality of clamps and the dismantled material holding frame via the suspension cable body, by means of a transporter and suspending and transporting the dismantled material. A method for transporting dismantled materials.