CN106115500A - A kind of high-rise building is special to be hung and certainly tears method open from tearing formula roofing open - Google Patents

Abstract

The invention discloses a special self-demolition roof crane for super high-rise buildings and a self-demolition method, including: site preparation, removal of the hook, removal of the hoisting wire rope, removal of the halter pulley block, removal of the lifting arm, and installation of the wire rope for tower removal. In the hoisting hoist, remove the counterweight, remove the auxiliary hook, remove the luffing wire rope, and remove the luffing hoist by using the wire rope for dismantling the tower and setting the chain hoist on the A-shaped tower rod. On the tower dismantling platform Set up the auxiliary winch, remove the hoisting winch, and remove the slewing mechanism in sequence by using the hand chain hoist and the pole. When the self-demolition method described in the present invention is used to disassemble the special roof crane for super high-rise buildings, it is not necessary to set up additional auxiliary dismantling tower cranes, relying on the parts of the roof crane itself and manual operation, it can realize self-disassembly to the tower dismantling platform, and then through The construction elevator transports to the ground. Because the self-demolition method described in the present invention does not need additional auxiliary dismantling tower cranes, it is not limited by the narrow defect of the building roof area.

Description

A special self-demolition roof crane and self-demolition method for super high-rise buildings

technical field

The invention relates to the technical field of hoisting machinery, in particular to a special self-demolition roof crane for super high-rise buildings and a self-demolition method.

technical background

With the rapid development of the construction industry, the records of super high-rise buildings around the world are constantly being refreshed. At present, the number of super high-rise steel structure skyscrapers in China is also rapidly increasing. In the final stage of super high-rise building construction, due to the constraints of high-altitude conditions, for the final building The disassembly of the large tower crane at the top and the tower crane that assists in the final dismantling of the tower have relatively large limitations. For a long time, smaller tower cranes have been used in the market to dismantle larger tower cranes, and finally the smaller tower cranes are cut down to complete the finishing work of the final building construction equipment. After the dismantling of the small tower crane, it was severely damaged, it was a one-off and could not be used again. Moreover, due to the limitation of the top roof area of super high-rise buildings, the requirements for dismantling equipment are particularly high, so it is urgent to develop a tower crane that can not only assist in the dismantling of large tower cranes, but also self-dismantle. It is lighter, and can be dismantled manually at last, and transported to the ground by construction elevators, and the safety is better during dismantling.

Contents of the invention

The purpose of the present invention is to solve the deficiencies of the prior art, to provide a self-dismantling method of a special roof crane for super high-rise buildings, and a special roof crane for super high-rise buildings with reasonable structural design, strong durability, convenient operation and high safety performance. The roof crane is a kind of vertical transportation equipment used for the roof construction of super high-rise steel structure buildings. It can be disassembled by itself, which can solve the disadvantages of the existing technology that the disassembly is difficult and the small tower crane used for disassembly needs to be destroyed, resulting in high equipment costs.

In order to realize the above object, the technical scheme that the present invention takes is:

A special self-detachable roof crane for super high-rise buildings, including:

The cross-shaped foundation beam installed on the roof of the building, the cross-shaped foundation beam is fixedly connected with a slewing mechanism, one end of the counterweight frame is fixedly connected with the slewing mechanism, the other end of the counterweight frame is provided with a counterweight, and the balance weight frame A luffing winch is set near the counterweight, a hoisting winch is set on the counterweight frame close to the slewing mechanism, and a cab is set on the counterweight frame above the slewing mechanism;

The root of the boom and the counterweight frame are connected by a pin shaft, and the boom can rotate around the pin shaft; idler rollers and guide wheels are arranged on the boom, and pulleys are arranged at the front end of the boom; The arm consists of multiple sections, and each section is connected by a pin shaft;

The luffing hoist includes an A-shaped tower and a luffing hoist set on the counterweight frame. The A-shaped tower includes a tie rod and a compression rod. One end of the compression rod of the A-shaped tower is fixed on the counterweight frame. The pin is connected to the middle of the tie rod, one end of the tie rod is fixed on the counterweight frame, and the other end of the tie rod is connected with a fixed pulley block and a halter pulley block. After passing back and forth between the halter pulleys, passing through the rollers and guide wheels set on the boom, and finally fixed to the pulley at the front end of the boom; a halter platform is set on the boom corresponding to the halter pulleys;

The hoisting hoist includes a hoisting wire rope and a hoisting hoist. The hoisting wire rope is drawn from the hoisting hoist and connected to the hook through the roller on the boom, the guide wheel, and the pulley at the front end of the boom.

The above-mentioned cross-shaped foundation beam is connected with the slewing mechanism through high-strength pins.

The above-mentioned boom can rotate 15° around the pin shaft.

The above-mentioned luffing steel wire rope is threaded back and forth at a rate of 4 times between the fixed pulley block and the halter pulley block.

A self-demolition method for a special roof crane for a super high-rise building, comprising the following steps:

Step 1: site preparation, tidy up the site around the roof crane, and prepare the platform for dismantling the tower;

Step 2: Operate the hoisting winch, slowly lower the hook to the above-mentioned platform for dismantling the tower, and remove the hook;

Step 3: Operate the hoisting hoist, slowly retract the hoisting wire rope to the hoisting hoist, when the head of the hoisting wire rope reaches the root of the boom, operate the hoisting hoist to stop rotating, then reverse the hoisting hoist, and pull the hoisting wire rope Pull out all the hoisting hoists and place them on the tower dismantling platform;

Step 4: Operate the luffing winch, lower the boom slowly so that the front end of the boom falls on the tower dismantling platform, continue to operate the luffing winch to lower the halter pulley block to the halter platform on the boom, and remove the luffing Pull out the luffing steel wire rope from the halter pulley block, and then remove the halter pulley block; the luffing steel wire rope is led out from the fixed pulley block of the A-shaped tower, and one end of the luffing wire rope wedge joint is connected with two auxiliary steel wire ropes to pull the middle section of the boom. main chord, and remove the first section of the front end of the jib, and operate the luffing winch at the same time to make the second section of the front end slowly fall on the tower dismantling platform, and remove the remaining jib sections in turn, and the fixed position of the luffing wire rope moves upwards as required. The root section of the boom is changed until the boom is completely removed, the wedge joint at one end of the luffing wire rope is removed, and the luffing winch is operated to retract all the luffing wire ropes into the luffing winch;

Step 5: Install the steel wire rope for tower dismantling into the hoisting hoist. One end of the wire rope is wound through the fixed pulley block of the A-shaped tower, and the other end is installed with an auxiliary hook to operate the hoisting hoist and lift the counterweight to separate it from the counterweight frame. , and then slowly lower the counterweights to the dismantling platform, and remove the remaining counterweights in turn;

Step 6: Remove the above-mentioned auxiliary hook head, slowly operate the hoisting winch, and lower the cable of the tower demolition wire rope to the tower demolition platform;

Step 7: Operate the luffing hoist, pull the luffing wire rope out of the luffing hoist, and roll it to the platform for dismantling the tower; use the steel wire rope for dismantling the tower and set the chain block on the A-shaped tower rod to pull the luffing hoist Remove to the demolition platform;

Step 8: Set up the auxiliary hoist on the tower dismantling platform, move the steel wire rope for tower dismantling in the hoisting hoist to the auxiliary hoist; use the wire rope for tower dismantling and set the hand chain hoist on the A-shaped tower rod to lift the hoist Remove to the demolition platform;

Step 9: Remove the auxiliary hoist, install the tower demolition pole on the cross-shaped foundation beam, install a chain block on the pole, and use the chain hoist and pole to remove the motor, pump station, cab, electrical cabinet, and counterweight frame, slewing mechanism and A-shaped tower;

Step 10: Rotate the counterweight frame so that the rear end of the counterweight frame is close to the pole, operate the pole, use the chain block and the pole to remove the counterweight frame in sections, and move it to the tower demolition platform; also use the chain hoist and the pole Remove the slewing mechanism one by one from the grill.

When dismantling the A-shaped tower in the above step 9, connect the lower end of the A-shaped tower rod with the front end of the counterweight frame with a chain block, and slowly operate the chain block to make the pressure rod of the A-shaped tower tilt down slowly. When the included angle of the heavy frame is 30 degrees, stop tilting down, and set up a temporary support between the node of the A-shaped tower rod and the pressure rod and the counterweight frame; rotate the counterweight frame so that the head section of the A-shaped tower rod is close to the pole, and use The hand chain hoist fixes the head section of the A-shaped tower rod, removes the connecting bolts of the head section, and rotates the pole to remove the head section to the tower demolition platform; rotates the counterweight frame to bring the root section of the A-shaped tower rod close to the pole, Operate the pole to fix the root section with a chain hoist, remove the connecting bolts of the root section, and at the same time loosen the chain hoist for fixing the root section, rotate the pole to remove the root section to the tower demolition platform; repeat the above steps to remove the head of the pull rod in turn The second section, the second section at the root, until the A-shaped tower is completely dismantled.

When removing the counterweight frame in the above step ten, rotate the counterweight frame so that the rear end of the counterweight frame is close to the pole; End bolts, rotate the lever to put the pole on the tower dismantling platform; operate the lever to fix one of the main beams in the third section of the counterweight frame, remove the main beam connecting pin, and rotate the lever to put the main beam on the tower demolition platform , repeat the above steps to remove another main beam of the third section of the counterweight frame; the removal steps of the second and first sections of the remaining counterweight frame are the same as those of the third section.

Compared with the prior art, the present invention has the following advantages:

1. The roof crane of the present invention has a small self-weight, and the tower body is removed. All parts can be disassembled manually and transported to the ground by a construction elevator.

2. The roof crane of the present invention is a boom type, and the hoisting height can be very high, which can realize single-rate hoisting, and can solve the phenomenon of wire rope interference during multi-rate hoisting.

3. The roof crane of the present invention can be driven by a diesel engine, which can effectively solve the power shortage problem in the construction of super high-rise steel structures.

4. The roof crane of the present invention has a reasonable design, can be controlled by PLC, has automatic fault diagnosis and high degree of operation visualization.

5. When the self-demolition method of the present invention is used to disassemble the special roof crane for super high-rise buildings, it is not necessary to set up additional auxiliary dismantling tower cranes, relying on the parts of the roof crane itself and the cooperation of manual operations, all can realize self-disassembly to the tower dismantling platform, Then it is transported to the ground by the construction elevator. Because the self-demolition method described in the present invention does not need additional auxiliary dismantling tower cranes, it is not limited by the narrow defect of the building roof area.

Description of drawings

Fig. 1 is the overall structure of the present invention.

Figure 2 is a schematic diagram of removing the hook.

Figure 3 is a schematic diagram of removing the hoisting wire rope.

Figure 4 is a schematic diagram of dismantling the boom, in which 4a is a schematic diagram of the front end of the boom falling on the tower dismantling platform, 4b is a schematic diagram of removing the luffing zipper and halter pulley block, 4c is a schematic diagram of removing the first section of the boom, and 4d is The schematic diagram of dismantling the jib of the second section, 4e is the schematic diagram of dismantling the remaining jib sections.

Figure 5 is a schematic diagram of removing the counterweight.

Fig. 6 is a schematic diagram of removing the auxiliary hook head.

Fig. 7 is a schematic diagram of dismantling the luffing hoist.

Fig. 8 is a schematic diagram of dismantling the hoisting hoist.

Fig. 9 is a schematic diagram of removing the motor using a chain hoist and a pole, wherein 9a is a schematic diagram of installing a pole, 9b is a schematic diagram of lifting the motor with a pole, and 9c is a schematic diagram of moving the motor to a tower demolition platform.

Figure 10 is a schematic diagram of removing the A-shaped tower by using a chain hoist and a pole, in which 10a is a schematic diagram of the lower end of the pull rod connected to the front end of the counterweight frame and a temporary bracket is erected between the A-shaped tower and the counterweight frame, and 10b is the removal of the pull rod head The schematic diagram of the section, 10c is the schematic diagram of removing the root section of the pull rod, and 10d is the schematic diagram of removing the pressure rod.

detailed description

Below in conjunction with accompanying drawing and specific embodiment, further set forth the technical scheme of the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand the present invention Modifications in various equivalent forms all fall within the scope defined by the appended claims of this application.

As shown in Figure 1, a special self-detachable roof crane for super high-rise buildings includes a cross-shaped foundation beam 1 arranged on the roof of the building. One end of the counterweight frame 3 is fixedly connected to the top, and the other end of the counterweight frame 3 is provided with a counterweight 4. A luffing winch 6 is arranged on the counterweight frame 3 close to the counterweight 4, and on the counterweight frame 3 close to The slewing mechanism 2 is provided with a hoisting hoist 7 , and the counterweight frame 3 is provided with a driver's cab above the slewing mechanism 2 .

The above-mentioned cross-shaped foundation beam is directly fixed on the top of the building, which saves the tower body, better saves steel, reduces self-weight, and also saves financial resources.

The 10 roots of the boom and the counterweight frame are connected by two high-strength pin shafts, and the boom can rotate at a certain angle around the pin shaft, about 15°; idler rollers and guide wheels are set on the boom , The front end of the boom is provided with a pulley; the boom consists of multiple sections, and each section is connected by 4 high-strength pins.

The luffing hoist 6 includes an A-shaped tower 5 and a luffing hoist arranged on the counterweight frame 3, the A-shaped tower 5 includes a pull bar 50 and a compression bar 51, and one end of the compression bar of the A-shaped tower is fixed on the counterweight frame 3, The other end of the pressure rod is connected to the middle part of the tie rod through a high-strength pin. One end of the tie rod is fixed on the counterweight frame 3. The other end of the tie rod is connected with a fixed pulley block and a halter pulley block. The luffing wire rope 9 is drawn out from the luffing hoist and passes through the A-shaped tower The fixed pulley block on the top, goes back and forth between the fixed pulley block and the halter pulley block at a rate of 4 times, passes through the rollers and guide wheels set on the boom, and finally fixes the pulley at the front end of the boom; the boom corresponds to the halter pulley block There is a halter platform.

The hoisting winch 7 includes a hoisting wire rope 8 and a hoisting hoist. The hoisting wire rope is drawn from the hoisting hoist and is connected to the hook 11 through the roller on the boom, the guide wheel, and the pulley at the front end of the boom. wear around.

The boom 10 is hinged with the counterweight frame through a high-strength pin shaft, and the hoisting winch 7 pulls the heavy object to a designated state through the hoisting wire rope 8; The jib 10 can well realize the luffing of the jib 10, and has a reasonable structure and high safety.

The roof crane described in the present invention can conveniently dismantle other large tower cranes. Since its own components have relatively light weight, after removing other large tower cranes, it can be disassembled by itself more conveniently without the need for other auxiliary cranes. It is indispensable for the demolition of large tower cranes after the completion of large-scale super high-rise buildings. The special self-demolition roof crane for super high-rise buildings is economical and practical, the whole machine has high safety, convenient installation and disassembly, and high construction efficiency.

Figure 2 is a schematic diagram of the removal of the hook, Figure 3 is a schematic diagram of the removal of the lifting wire rope, Figure 4 is a schematic diagram of the removal of the boom, and Figure 4 is a schematic diagram of the removal of the boom, where 4a is the front end of the boom falling on the tower demolition platform Schematic diagram, 4b is a schematic diagram of removing the luffing zipper and halter block, 4c is a schematic diagram of removing the first boom section, 4d is a schematic diagram of removing the second boom section, and 4e is a schematic diagram of removing the remaining boom sections .

Fig. 5 is a schematic diagram of removing the counterweight, Fig. 6 is a schematic diagram of removing the auxiliary hook, Fig. 7 is a schematic diagram of removing the luffing hoist, and Fig. 8 is a schematic diagram of removing the hoisting hoist.

Fig. 9 is a schematic diagram of removing the motor using a chain hoist and a pole, wherein 9a is a schematic diagram of installing a pole, 9b is a schematic diagram of lifting the motor with a pole, and 9c is a schematic diagram of moving the motor to a tower demolition platform.

Figure 10 is a schematic diagram of removing the A-shaped tower by using a chain hoist and a pole, in which 10a is a schematic diagram of the lower end of the pull rod connected to the front end of the counterweight frame and a temporary bracket is erected between the A-shaped tower and the counterweight frame, and 10b is the removal of the pull rod head The schematic diagram of the section, 10c is the schematic diagram of removing the root section of the pull rod, and 10d is the schematic diagram of removing the pressure rod.

A kind of self-dismantling method of self-dismantling roof crane special for super high-rise buildings according to the present invention comprises the following steps:

Step 1: site preparation, tidy up the site around the roof crane, and prepare the platform for dismantling the tower;

Step 2: Operate the hoisting winch, slowly lower the hook to the above-mentioned platform for dismantling the tower, and remove the hook;

Step 3: Operate the hoisting hoist, slowly retract the hoisting wire rope to the hoisting hoist, when the head of the hoisting wire rope reaches the root of the boom, operate the hoisting hoist to stop rotating, then reverse the hoisting hoist, and pull the hoisting wire rope Pull out all the hoisting hoists and place them on the tower dismantling platform;

Step 4: Operate the luffing winch, lower the boom slowly so that the front end of the boom falls on the tower dismantling platform, continue to operate the luffing winch to lower the halter pulley block to the halter platform on the boom, and remove the luffing Pull out the luffing steel wire rope from the halter pulley block, and then remove the halter pulley block; the luffing steel wire rope is led out from the fixed pulley block of the A-shaped tower, and one end of the luffing wire rope wedge joint is connected with two auxiliary steel wire ropes to pull the middle section of the boom. main chord, and remove the first section of the front end of the jib, and operate the luffing winch at the same time to make the second section of the front end slowly fall on the tower dismantling platform, and remove the remaining jib sections in turn, and the fixed position of the luffing wire rope moves upwards as required. The root section of the boom is changed until the boom is completely removed, the wedge joint at one end of the luffing wire rope is removed, and the luffing winch is operated to retract all the luffing wire ropes into the luffing winch;

Step 5: Install the steel wire rope for tower dismantling into the hoisting hoist. One end of the wire rope is wound through the fixed pulley block of the A-shaped tower, and the other end is installed with an auxiliary hook to operate the hoisting hoist and lift the counterweight to separate it from the counterweight frame. , and then slowly lower the counterweights to the dismantling platform, and remove the remaining counterweights in turn;

Step 6: Remove the above-mentioned auxiliary hook head, slowly operate the hoisting winch, and lower the cable of the tower demolition wire rope to the tower demolition platform;

Step 7: Operate the luffing hoist, pull the luffing wire rope out of the luffing hoist, and roll it to the platform for dismantling the tower; use the steel wire rope for dismantling the tower and set the chain block on the A-shaped tower rod to pull the luffing hoist Remove to the demolition platform;

Step 8: Set up the auxiliary hoist on the tower dismantling platform, move the steel wire rope for tower dismantling in the hoisting hoist to the auxiliary hoist; use the wire rope for tower dismantling and set the hand chain hoist on the A-shaped tower rod to lift the hoist Remove to the demolition platform;

Step 9: Remove the auxiliary hoist, install the tower demolition pole on the cross-shaped foundation beam, install a chain block on the pole, and use the chain hoist and pole to remove the motor, pump station, cab, electrical cabinet, and counterweight frame, slewing mechanism and A-shaped tower;

Step 10: Rotate the counterweight frame so that the rear end of the counterweight frame is close to the pole, operate the pole, use the chain block and the pole to remove the counterweight frame in sections, and move it to the tower demolition platform; also use the chain hoist and the pole Remove the slewing mechanism one by one from the grill.

When dismantling the A-shaped tower in the above step 9, connect the lower end of the A-shaped tower rod with the front end of the counterweight frame with a chain block, and slowly operate the chain block to make the pressure rod of the A-shaped tower tilt down slowly. When the included angle of the heavy frame is 30 degrees, stop tilting down, and set up a temporary support between the node of the A-shaped tower rod and the pressure rod and the counterweight frame; rotate the counterweight frame so that the head section of the A-shaped tower rod is close to the pole, and use The hand chain hoist fixes the head section of the A-shaped tower rod, removes the connecting bolts of the head section, and rotates the pole to remove the head section to the tower demolition platform; rotates the counterweight frame to bring the root section of the A-shaped tower rod close to the pole, Operate the pole to fix the root section with a chain hoist, remove the connecting bolts of the root section, and at the same time loosen the chain hoist for fixing the root section, rotate the pole to remove the root section to the tower demolition platform; repeat the above steps to remove the head of the pull rod in turn The second section, the second section at the root, until the A-shaped tower is completely dismantled.

When removing the counterweight frame in the above step ten, rotate the counterweight frame so that the rear end of the counterweight frame is close to the pole; End bolts, rotate the lever to put the pole on the tower dismantling platform; operate the lever to fix one of the main beams in the third section of the counterweight frame, remove the main beam connecting pin, and rotate the lever to put the main beam on the tower demolition platform , repeat the above steps to remove another main beam of the third section of the counterweight frame; the removal steps of the second and first sections of the remaining counterweight frame are the same as those of the third section.

The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (7)

1. a high-rise building is special hangs from tearing formula roofing open, it is characterised in that including:

It is arranged at the cross foundation beam of building roofing, cross foundation beam is fixedly connected with slew gear, slew gear On be fixedly connected with one end of counter-balanced carriage, the other end of counter-balanced carriage is provided with balancing weight, and counter-balanced carriage is arranged at balancing weight Having luffing elevator, counter-balanced carriage is provided with, at slew gear, the elevator that hoists, the top that counter-balanced carriage is positioned at slew gear sets It is equipped with drivers' cab；

Being connected by bearing pin between crane arm root and counter-balanced carriage, crane arm can rotate centered by this bearing pin；On crane arm Being provided with carrying roller and guide wheel, the front end of crane arm is provided with pulley；Crane arm includes more piece, is often connected by bearing pin between joint；

Luffing elevator includes A shape tower and the luffing hoist engine being arranged on counter-balanced carriage, and A shape tower includes pull bar and depression bar, A shape tower Depression bar one end is fixed on counter-balanced carriage, and the depression bar other end is connected to pull bar medium position by high intensity pin, and pull bar one end is solid On counter-balanced carriage, the pull bar other end connects fixed pulley group and halter assembly pulley, and variable-amplitude steel wire rope is drawn from luffing hoist engine, Through the fixed pulley group of A shape top of tower, arrange on crane arm after passing around back and forth between fixed pulley group and halter assembly pulley Carrying roller and guide wheel, be finally secured to the pulley of crane arm front end；Correspond to be provided with halter at halter assembly pulley on crane arm put down Platform；

The elevator that hoists includes hoist rope and the hoist engine that hoists, and hoist rope is drawn, on crane arm from the hoist engine that hoists Carrying roller, guide wheel, the pulley of crane arm front end be connected with suspension hook.

High-rise building the most according to claim 1 is special to be hung from tearing formula roofing open, it is characterised in that cross foundation beam leads to Cross high-strength pin to be connected with slew gear.

High-rise building the most according to claim 1 is special to be hung from tearing formula roofing open, it is characterised in that crane arm with bearing pin is Center can rotate 15 °.

High-rise building the most according to claim 1 is special to be hung from tearing formula roofing open, it is characterised in that variable-amplitude steel wire rope is fixed Between assembly pulley and halter assembly pulley, 4 multiplying powers pass around back and forth.

5. the method for certainly tearing open that the special roofing of high-rise building hangs, it is characterised in that comprise the following steps:

Step one: Farm Planning, arranges roofing and hangs place around, prepares to tear open the platform of tower；

Step 2: operate the elevator that hoists, slowly declines suspension hook to the above-mentioned platform tearing tower open, dismounting suspension hook；

Step 3: operate the elevator that hoists, hoist rope is slowly regained the hoist engine that hoists, when hoist rope fag end arrives During weighing arm root, operate the hoist engine that hoists and stop operating, then invert the hoist engine that hoists, be completely drawn out hoisting by hoist rope Hoist engine is also put to tearing tower platform open；

Step 4: operation luffing elevator, by slow for crane arm nutation, makes crane arm front end fall within and tears open on tower platform, continue operation Luffing elevator makes halter assembly pulley drop to the halter platform on arm, removes luffing zip, and variable-amplitude steel wire rope is sliding from halter Wheels are extracted out, then removes halter assembly pulley；Variable-amplitude steel wire rope is drawn from the fixed pulley group of A shape tower, variable-amplitude steel wire rope wedge shape One two auxiliary steel wire ropes of termination of joint, the main chord of pulling crane arm middle node, and remove the first segment of crane arm front end, Operation luffing elevator makes front end second section slowly fall within and tears tower platform open simultaneously, removes residue lifting arm joint, variable-amplitude steel wire rope successively Fixed position is the most successively to the joint variation of crane arm root, until all being removed by crane arm, by variable-amplitude steel wire rope one end Wedge joint remove, operation luffing elevator variable-amplitude steel wire rope is all retracted in luffing hoist engine；

Step 5: tower steel wire rope will be torn open and be filled to hoist in hoist engine, steel wire rope one end pile warp A shape tower fixed pulley group, the other end Auxiliary gib head is installed, operates the elevator that hoists, balancing weight of slinging so that it is depart from counter-balanced carriage, then balancing weight is slowly transferred to tearing tower open On platform, remove residue balancing weight successively；

Step 6: removed by above-mentioned auxiliary gib head, slowly operates the elevator that hoists, makes the drag-line tearing tower steel wire rope open drop to tear tower open Platform；

Step 7: operation luffing elevator, extracts out variable-amplitude steel wire rope in luffing hoist engine, and volume is put to tearing tower platform open；Utilization is torn open Tower steel wire rope and arrange the mode of chain block on A shape tower pull bar, removes luffing hoist engine to tearing tower platform open；

Step 8: arrange auxiliary hoist engine on tower platform tearing open, tears tower steel wire rope open and moves to assist elevator in the hoist engine that will hoist In machine；Utilizing and tear tower steel wire rope open and arrange the mode of chain block on A shape tower pull bar, the hoist engine that will hoist removes to tearing tower open Platform；

Step 9: remove auxiliary hoist engine, installs on cross foundation beam and tears tower gin pole open, gin pole arranges chain block, Chain block and gin pole is utilized to remove motor, pumping plant, driver's cabin, regulator cubicle, counter-balanced carriage, slew gear and A shape tower；

Step 10: rotating weight frame, makes counter-balanced carriage rear end near gin pole, operates gin pole, utilize chain block and gin pole segmentation to tear open Except counter-balanced carriage, and shifting is put to tearing tower platform open；Slew gear is removed successively also with chain block and gin pole.

The method of certainly tearing open that the special roofing of a kind of high-rise building the most according to claim 5 hangs, it is characterised in that described step When removing A shape tower in rapid nine, with chain block, A shape tower pull bar lower end is connected with counter-balanced carriage front end, slowly operates chain block, Make A shape tower depression bar slowly have a down dip, stop when depression bar is 30 degree with counter-balanced carriage angle having a down dip, at A shape tower pull bar and depression bar node Falsework is set up between place and counter-balanced carriage；Rotating weight frame, makes the close gin pole of A shape tower rod head joint, solid with chain block Surely live A shape tower rod head joint, dismounting head joint connecting bolt, rotate gin pole and head joint is removed to tearing tower platform open；Rotation is joined Weight frame, by A shape tower pull bar root joint near gin pole, root joint fixed by operation gin pole chain block, and dismounting root joint connects spiral shell Bolt, unclamps the chain block that root joint is fixing simultaneously, rotates gin pole and removes root joint to tearing tower platform open；Repeat above step Remove rod head second section, root second section successively, until completely removing A shape tower.

The method of certainly tearing open that the special roofing of a kind of high-rise building the most according to claim 5 hangs, it is characterised in that described step When removing counter-balanced carriage in rapid ten, rotating weight frame, make counter-balanced carriage rear end near gin pole；Operation gin pole, joins with chain block is fixing The strut that weight frame is Section three, removes strut bolts at two ends, rotates gin pole and is put by strut to tearing tower platform open；Operation gin pole, by counterweight Section of three girder the most a piece of of frame is fixed, and removes this girder connecting pin, rotates gin pole and is put by girder to tearing tower platform open, more than repetition Step removes another sheet girder of Section of three counter-balanced carriage；Residue counter-balanced carriage second section, first segment dismounting step all with Section three Identical.