CN108483279B - The method for dismounting of adhesion tower-crane under narrow landform - Google Patents
The method for dismounting of adhesion tower-crane under narrow landform Download PDFInfo
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- CN108483279B CN108483279B CN201810346580.8A CN201810346580A CN108483279B CN 108483279 B CN108483279 B CN 108483279B CN 201810346580 A CN201810346580 A CN 201810346580A CN 108483279 B CN108483279 B CN 108483279B
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- crane
- balance weight
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/16—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
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- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The present invention is to provide a kind of method for dismounting of the adhesion tower-crane of dismounting cost that can reduce the adhesion tower-crane under narrow landform, belongs to technical field of building construction.The method for dismounting of adhesion tower-crane under narrow landform, comprising the following steps: a) remove extra balance weight；B) crane arm is removed；C), tower crane trim；D), tower body is removed；E) counter-jib, tower cap and swing mechanism are removed.Method for dismounting of the invention does not need large-scale lifting equipment in tower crane demolishing process, so that the removal cost of tower crane is lower.
Description
Technical field
The invention belongs to technical field of building construction, are specifically related to the dismounting side of the adhesion tower-crane under narrow landform
Method.
Background technique
Currently, being set to the fixation adhesion tower-crane outside building is that building engineering construction is general in building engineering construction
All over the vertical transportation machinery used.The method for dismounting of conventional tower crane is: crane arm is hung oneself with trim again by tower crane trim, and tower crane is matched
Hydraulic cylinder after flat again using the jacking stock on tower body removes tower body from jacking drop section method, is finally removed again with crane flat
Weight, crane arm, tower cap, swing mechanism etc..With the process of urbanization, land resource more becomes precious, the construction of tower crane
Place also more becomes narrow, is limited by construction site, and tower crane often finds itself to be in and build after completing construction task
It builds among thick forest, around has been unable to meet the space of crane arm decline when building tower crane is saved from jacking drop, therefore can not be using normal
The method of rule is removed.To remove tower crane, only first tower body crane arm is removed.Now, the attachment under narrow landform
The method for dismounting of formula tower crane is mainly rented giant caterpillar formula hoisting machinery and is removed.According to the height and lifting of building tower crane
Arm weight need to meet the tower type work condition of crawler crane, and due to narrow around tower crane, the working space of crane is limited,
Crane arm dismounting is also more difficult, causes above-mentioned method for dismounting cost too high.
Summary of the invention
The dismounting of the adhesion tower-crane under narrow landform can be reduced technical problem to be solved by the invention is to provide one kind
The method for dismounting of cost.
The technical solution adopted by the present invention to solve the technical problems is: the dismounting side of the adhesion tower-crane under narrow landform
Method first follows the steps below before removing tower body:
A) extra balance weight is removed；
A1, mast-up is set on counter-balanced carriage, the mast-up is located above balance weight, and the is arranged on the mast-up
One guiding fixed block；First fly block is set right above balance weight；
A2, the guiding fixed block of hoist engine and tower cap, the first guiding fixed block and the first fly block composition are removed and is put down
The Lift-on/Lift-off System of weight；
A3, balance weight is lifted on the first fly block, starts after hoist engine removes balance weight positioning pin and hangs to ground
Face；
A4, balance weight is removed to when also remaining one piece of the close centre of gyration recently, the steel cable of hoist engine is put down from dismounting
It is removed on the Lift-on/Lift-off System coaster of weight；
B) crane arm is removed；
B1, the second fly block is set in the connecting pin of crane arm, the second fly block is connect with crane arm；By hoist engine with
The guiding fixed block of tower cap and the second fly block composition remove the Lift-on/Lift-off System of crane arm；Hoisting apparatus is set, by crane arm
Outer end is lifted on hoisting apparatus；
B2, hoist engine and hoisting apparatus are started, removed crane arm after the connection pin shaft and pull rod of crane arm connecting pin
It hangs on building；
B3, the a2 and a3 for repeating step a) remove remaining one piece of balance weight；
B4, it is lifted with the Lift-on/Lift-off System of hoisting apparatus or dismounting balance weight to ground after removing crane arm segmentation；
C) tower crane trim；
It is provided in the symmetry direction of counter-jib with flatrack；Described hinged with flatrack one end and tower cap, one end is hanging, and outstanding
Dead end is equipped with the adjusting rope connecting with tower cap；The second guiding fixed block and the dynamic cunning of third are connected with below flatrack free end matching
Vehicle；By hoist engine and the second guiding fixed block and the Lift-on/Lift-off System of third fly block composition lifting trim weight；Trim is hung again
By tower crane trim on third fly block；
D), tower body is removed；
The pin shaft of the standard knot connection of d1, dismounting swing mechanism and tower body jacks up swing mechanism with the oil cylinder of jacking stock,
The standard knot is disengaged it from, the introduction trolley on swing mechanism is connect with the standard knot, the standard knot is removed and is connected with tower body
The pin shaft connect；Jacking is continued up, the standard knot and tower body are detached from, is released the standard knot outside tower body using trolley is introduced；
D2, it drives swing mechanism above section to move down with the oil cylinder of jacking stock, reconnects it together with tower body,
Loose hoist engine hangs trim again to ground, and adjustment, which adjusts rope, makes third fly block to introducing above trolley, and standard knot is lifted
On third fly block and hung to ground；
D3, starting hoist engine sling trim again and carry out tower crane trim again, repeat step d1, d2；
E) counter-jib, tower cap and swing mechanism are removed.
Preferably, the guiding fixed block of tower cap described in step a) a2 is the guiding fixed block in the middle part of tower cap.
Preferably, the guiding fixed block of tower cap described in step b) b1 is the guiding fixed block in tower crown portion.
Preferably, described to be additionally provided with cucurbit with flatrack free end in step c), the top of rope, cucurbit and tower cap will be adjusted
Portion's fixed block forms adjustment system to adjust and adjust rope length degree, and the luffing of flatrack is matched in control.
The beneficial effects of the present invention are: the method for dismounting of the adhesion tower-crane under narrow landform of the invention, utilizes tower crane
Itself hoist engine form simple tackling system and remove balance weight, then a hoisting apparatus is set and is cooperated with it, realize that two-shipper is lifted
It hangs, removes entire crane arm, remove crane arm and recycle hoisting apparatus or the Lift-on/Lift-off System of dismounting balance weight by segmentation later
Crane arm is lifted to ground, and tower crane crane arm is removed easy.By tower crane trim after crane arm dismounting, hydraulic lifting is used after trim again
Device removes tower body, finally removes counter-jib, tower cap and swing mechanism, and large-scale rising is not needed in tower crane demolishing process and is reseted
It is standby, so that the removal cost of tower crane is lower.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of adhesion tower-crane of the invention when removing balance weight；
Fig. 2 is the structural schematic diagram of adhesion tower-crane of the invention when removing crane arm；
Fig. 3 is the adhesion tower-crane of the invention tower crane trim structural schematic diagram after removing crane arm；
Fig. 4 is the structural schematic diagram of adhesion tower-crane of the invention when removing tower body；
As shown in the figure: 1. crane arms, 2. counter-jibs, 3. mast-ups, 4. jacking stocks, 5. tower caps, 6. hoisting apparatus, 7. match
Flatrack, 8. trim weights, 9. buildings, 10. adjusting ropes, 11, swing mechanism, 12. tower bodies, 13. second fly blocks, 14. cucurbits,
15. trolley is introduced, 21. counter-balanced carriages, 22. balance weights, 23. hoist engines, 31. first guiding fixed blocks, 32. first fly blocks, 71.
Second guiding fixed block, 72, third fly block.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
As shown in Figures 1 to 4, the method for dismounting of the adhesion tower-crane under narrow landform, comprising the following steps:
A) extra balance weight is removed；
A1, mast-up 3 is set on counter-balanced carriage 21, the mast-up 3 is located at 22 top of balance weight, in the mast-up 3
Upper the first guiding of setting fixed block 31；First fly block 32 is set right above balance weight 22；
A2, hoist engine 23 and the guiding fixed block, the first guiding fixed block 31 and the first fly block 32 of tower cap 5 are formed
Remove the Lift-on/Lift-off System of balance weight 22；
A3, balance weight 22 is lifted on the first fly block 32, starting hoist engine 23 will be after the dismounting of 22 positioning pin of balance weight
It hangs to ground；
A4, when balance weight 22 is removed to also surplus nearest one piece close to the centre of gyration, by the steel cable of hoist engine 23 from tearing open
Except being removed on the Lift-on/Lift-off System coaster of balance weight 22；
B) crane arm is removed；
B1, second fly block 13 is set in the connecting pin of crane arm 1, the second fly block 13 is connect with crane arm 1；It will volume
The guiding fixed block and the second fly block 13 composition of raising machine 23 and tower cap 5 remove the Lift-on/Lift-off System of crane arm 1；Refitting has been set
6 are set, 1 outer end of crane arm is lifted on hoisting apparatus 6；
B2, hoist engine 23 and hoisting apparatus 6 are started, will be risen after removing the connection pin shaft and pull rod of 1 connecting pin of crane arm
Weighing arm 1 is hung on building 9；
B3, the a2 and a3 for repeating step a) remove remaining one piece of balance weight；
B4, it is lifted with the Lift-on/Lift-off System of hoisting apparatus 6 or dismounting balance weight 22 to ground after removing the segmentation of crane arm 1
Face；
C) tower crane trim；
It is provided in the symmetry direction of counter-jib 2 with flatrack 7；Described hinged with 7 one end of flatrack and tower cap 5, one end is hanging,
And free end is equipped with the adjusting rope 10 connecting with tower cap 5；71 He of the second guiding fixed block is connected with below 7 free end of flatrack matching
Third fly block 72；Hoist engine 23 and the second guiding fixed block 71 and the composition lifting trim of third fly block 72 are weighed 8 and hung
Dress system；Trim is weighed 8 to be lifted on tower crane trim on third fly block 72；
D), tower body is removed；
D1, the pin shaft that swing mechanism 11 is connect with the standard knot of tower body 12 is removed, jacks up revolution with the oil cylinder of jacking stock 4
Mechanism 11 disengages it from the standard knot, and the introduction trolley on swing mechanism 11 is connect with the standard knot, remove the standard knot with
The pin shaft that tower body 12 is connected；Jacking is continued up, the standard knot and tower body 12 are detached from, using introducing trolley for the standard knot
It releases outside tower body 12；
D2, it drives 11 above section of swing mechanism to move down with the oil cylinder of jacking stock 4, is reconnected in it with tower body 12
Together, trim is weighed 8 and hung to ground by loose hoist engine 23, and adjustment, which adjusts rope 10, to be made above third fly block 72 to introduction trolley,
Standard knot is lifted on third fly block 72 and is hung to ground；
D3, starting hoist engine 23 sling trim again and weigh 8 progress tower crane trims, repeat step d1, d2；
E) counter-jib, tower cap and swing mechanism are removed.
When removing extra balance weight, on counter-balanced carriage 21 be arranged mast-up 3, mast-up 3 can weld or screw connection
Mode is arranged on counter-balanced carriage 21.The effect that the first fly block 32 is arranged right above balance weight 22 is to guarantee lifting balance weight 22
Shi Shouli is upward, consequently facilitating removing balance weight.Hoist engine 23 and the guiding fixed block of tower cap 5, the guiding of mast-up 3 are slided surely
Fly block composition right above vehicle and balance weight 22 removes the Lift-on/Lift-off System of balance weight 22, i.e., by the steel cable of tower crane hoist engine 23
It connects after the guiding fixed block, the first guiding fixed block 31 and the first fly block 32 of tower cap 5 in mast-up 3 or coaster
Upper (being determined by the canoe of steel cable and coaster) forms pulley blocks, as shown in Figure 1, being that steel cable is fixed on to mast-up 3 in figure
On.Lift-on/Lift-off System principle is to pull steel cable that the first fly block 32 can be made to move up and down using hoist engine 23, so that realizing will balance
Weigh 22 dismountings.Suspension hook coaster can be used in first fly block 32, and the fairlead that the guiding fixed block of tower cap 5 can be middle part can also
To be the fairlead at the top of it, preferably middle part fairlead.When removing balance weight 22, the tightening of hoist engine 23 should be slowly started
Steel cable slowly slings balance weight 22, after the pin shaft for removing fixed balance weight 22, then slowly starts the loose hoist engine steel of hoist engine 23
Rope, until putting balance weight 22 to ground.The purpose for first removing extra balance weight is after preventing from removing crane arm 1, and counter-jib 2 is right
The torque of tower cap 5 is excessive, causes tower crane damage or unstability.
When removing crane arm, second fly block 13 is set in the connecting pin of crane arm 1, the second fly block 13 is arranged as far as possible to be leaned on
The connecting pin of nearly crane arm 1, in order to lift.By 13 groups of the guiding fixed block and the second fly block of hoist engine 23 and tower cap 5
At the Lift-on/Lift-off System for removing crane arm 1, the guiding fixed block of tower cap 5 can be the guiding fixed block in wherein portion or top, such as Fig. 2
It is shown, the guiding fixed block of preferred top.The guiding fixed block lifting at top is more convenient.Hoisting apparatus 6, hoisting apparatus 6 are set
It may be provided on building or on ground, be preferably provided on building.Hoisting apparatus 6 can be easy gin pole.
It starts hoist engine 23 and hoisting apparatus 6, crane arm 1 is removed and is hung on building 9, i.e., it will by the way of two-shipper lifting
Crane arm 1 is removed, therefore smaller to the tonnage demand of hoisting apparatus 6, convenient for setting.It removes crane arm 1 and recycles lifting later
Device 6 or the Lift-on/Lift-off System for removing balance weight lift the crane arm 1 of segmentation to ground, using the above method, tower crane crane arm
Simplicity is removed, removal cost is lower.
After removing crane arm, such as not trim, tower crane upper end can be under the moment loading of counter-jib to putting down when jacking
One side of arm inclination of weighing will lead to the stabilizer blade of pivoting support after the stabilizer blade of pivoting support leaves with the fish platee of lower section standard knot
It with the fish platee serious dislocation of standard knot, cannot take a seat again, bring immeasurable trouble and safety hidden to the dismounting of tower body
Suffer from, it is serious to be also possible to that machine security accident is caused (such as the deformation of stock section, tower crane collapse).Therefore, it need to will remove
The tower crane trim of weighing arm.Tower crane trim principle is anti-with torque of the counter-jib 2 to tower body in 2 symmetry direction of counter-jib setting one
To torque so that the two offsets.The effect for adjusting rope 10 is to make by adjusting the length of rope 10 is adjusted with about 7 flatrack
It rotates (i.e. luffing), to realize to the torque adjusting for matching flatrack side, and also to be easy to lift standard knot.Adjusting rope 10 can
Realize that length adjustment will be adjusted as shown in figure 3, being to be additionally provided with cucurbit 14 in free end in figure to connect with the hoist engine on ground
Rope 10, cucurbit 14 and 5 top fixed block of tower cap form adjustment system.Cucurbit 14 can be bottle gouard moved by hands, or electronic calabash
Reed adjusts rope 10 by cucurbit.
After trim, the hydraulic cylinder for jacking stock removes tower-body standard section from jacking drop section method, and band tower body is reduced to can
Remove counter-jib, tower cap with ground small lifting equipment and when swing mechanism, with ground small lifting equipment remove counter-jib,
Tower cap and swing mechanism.
Finally remove remaining tower body.
The method for dismounting of adhesion tower-crane under narrow landform of the invention, takes full advantage of the design feature of tower crane itself
Crane arm 1 and balance weight 22 are removed, method for dismounting is relatively simple, and the dismounting working efficiency of tower crane, tower crane can be improved
Demolishing process in do not need setting large lifting equipment, to save expense.
Claims (4)
1. the method for dismounting of the adhesion tower-crane under narrow landform, comprising the following steps:
A) extra balance weight is removed；
A1, mast-up (3) are set on counter-balanced carriage (21), the mast-up (3) is located above balance weight (22), in the lifting
The first guiding fixed block (31) of setting on frame (3)；The first fly block (32) are set right above balance weight (22)；
A2, the guiding fixed block of hoist engine (23) and tower cap (5), first are oriented to fixed block (31) and the first fly block (32)
Composition removes the Lift-on/Lift-off System of balance weight (22)；
A3, balance weight (22) is lifted on the first fly block (32), starts hoist engine (23) and tears balance weight (22) positioning pin open
It is hung after removing to ground；
A4, when balance weight (22) are removed to also surplus nearest one piece close to the centre of gyration, by the steel cable of hoist engine (23) from tearing open
Except being removed on the Lift-on/Lift-off System coaster of balance weight (22)；
B) crane arm is removed；
B1, the second fly block (13) are set in the connecting pin of crane arm (1), the second fly block (13) is connect with crane arm (1)；
The guiding fixed block of hoist engine (23) and tower cap (5) and the second fly block (13) composition are removed to the lifting system of crane arm (1)
System；It is arranged hoisting apparatus (6), crane arm (1) outer end is lifted on hoisting apparatus (6)；
B2, hoist engine (23) and hoisting apparatus (6) are started, it will after the connection pin shaft and pull rod of dismounting crane arm (1) connecting pin
Crane arm (1) is hung on building (9)；
B3, the a2 and a3 for repeating step a) remove remaining one piece of balance weight；
B4, it is lifted with the Lift-on/Lift-off System of hoisting apparatus (6) or dismounting balance weight (22) to ground after removing crane arm (1) segmentation
Face；
C) tower crane trim；
It is provided in the symmetry direction of counter-jib (2) with flatrack (7)；It is described to match flatrack (7) one end and tower cap (5) hingedly, one end
Vacantly, and free end is equipped with the adjusting rope (10) connecting with tower cap (5)；It is led being connected with second with flatrack (7) free end lower section
To fixed block (71) and third fly block (72)；By hoist engine (23) and the second guiding fixed block (71) and third fly block
(72) Lift-on/Lift-off System of composition lifting trim weight (8)；Trim weight (8) is lifted on tower crane trim on third fly block (72)；
D), tower body is removed；
D1, the pin shaft that swing mechanism (11) are connect with the standard knot of tower body (12) is removed, is jacked up back with the oil cylinder of jacking stock (4)
Rotation mechanism (11), disengages it from the standard knot, and the introduction trolley on swing mechanism (11) is connect with the standard knot, removes the mark
The pin shaft that quasi- section is connected with tower body (12)；Jacking is continued up, the standard knot and tower body (12) are detached from, utilizes introduction trolley
The standard knot is released into tower body (12) outside；
D2, it drives swing mechanism (11) above section to move down with the oil cylinder of jacking stock (4), reconnects it with tower body (12)
Together, loose hoist engine (23) hangs trim weight (8) to ground, and adjustment, which adjusts rope (10), makes third fly block (72) to introduction
Above trolley, standard knot is lifted on third fly block (72) and is hung to ground；
D3, starting hoist engine (23) sling trim weight (8) again and carry out tower crane trim, repeat step d1, d2；
E) counter-jib, tower cap and swing mechanism are removed.
2. the method for dismounting of the adhesion tower-crane under narrow landform as described in claim 1, it is characterised in that: in step a) a2
The guiding fixed block of the tower cap (5) is the guiding fixed block in the middle part of tower cap (5).
3. the method for dismounting of the adhesion tower-crane under narrow landform as described in claim 1, it is characterised in that: in step b) b1
The guiding fixed block of the tower cap (5) is the guiding fixed block at the top of tower cap (5).
4. the method for dismounting of the adhesion tower-crane under narrow landform as claimed in claim 1,2 or 3, it is characterised in that: step
C) described to be additionally provided with cucurbit (14) with flatrack (7) free end in, the top of rope (10), cucurbit (14) and tower cap (5) will be adjusted
Fixed block forms adjustment system to adjust and adjust rope (10) length, and the luffing of flatrack (7) is matched in control.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810346580.8A CN108483279B (en) | 2018-04-17 | 2018-04-17 | The method for dismounting of adhesion tower-crane under narrow landform |
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| CN201810346580.8A CN108483279B (en) | 2018-04-17 | 2018-04-17 | The method for dismounting of adhesion tower-crane under narrow landform |
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| CN108483279B true CN108483279B (en) | 2019-04-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109455627A (en) * | 2018-11-05 | 2019-03-12 | 深圳市金世纪工程实业有限公司 | Adjustable Split mounting type door type frame and its application construction method for tower crane dismounting |
| CN109678067B (en) * | 2019-01-29 | 2020-02-21 | 国网山东省电力公司建设公司 | A supplementary device of demolising for tower crane |
| CN110485752B (en) * | 2019-08-23 | 2021-11-09 | 广东祈大建设工程有限公司 | High-rise building dismantling method and machine |
| CN111677334A (en) * | 2020-04-27 | 2020-09-18 | 中建科工集团有限公司 | Method for removing suspension measure material |
| CN114084817B (en) * | 2021-11-12 | 2024-02-09 | 北京紫竹慧建设服务股份有限公司 | Tower arm dismantling device and dismantling process for long and narrow field |
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|---|---|---|---|---|
| SU1763347A1 (en) * | 1989-06-19 | 1992-09-23 | Московское Производственное Объединение "Строймаш" | Tower crane and method of dismantling it |
| CN201458596U (en) * | 2009-08-14 | 2010-05-12 | 河北省电力建设第一工程公司 | Crane with self-dismounting device |
| CN202390113U (en) * | 2011-12-16 | 2012-08-22 | 西安市第四建筑工程公司 | Hoisting and demounting device attached to tower crane for building |
| CN205114903U (en) * | 2015-11-21 | 2016-03-30 | 广东庞源工程机械有限公司 | Demolition structure of tower crane counter weight |
| CN205555924U (en) * | 2016-04-28 | 2016-09-07 | 山东腾飞建设机械工程有限公司 | A system's device for high altitude dismantlement tower crane |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1763347A1 (en) * | 1989-06-19 | 1992-09-23 | Московское Производственное Объединение "Строймаш" | Tower crane and method of dismantling it |
| CN201458596U (en) * | 2009-08-14 | 2010-05-12 | 河北省电力建设第一工程公司 | Crane with self-dismounting device |
| CN202390113U (en) * | 2011-12-16 | 2012-08-22 | 西安市第四建筑工程公司 | Hoisting and demounting device attached to tower crane for building |
| CN205114903U (en) * | 2015-11-21 | 2016-03-30 | 广东庞源工程机械有限公司 | Demolition structure of tower crane counter weight |
| CN205555924U (en) * | 2016-04-28 | 2016-09-07 | 山东腾飞建设机械工程有限公司 | A system's device for high altitude dismantlement tower crane |
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| CN108483279A (en) | 2018-09-04 |
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Effective date of registration: 20200713 Address after: 750001 Nanyuan Kang Chen office building, Nanyuan, Fenghuang street, Xingqing District, Yinchuan, the Ningxia Hui Autonomous Region Patentee after: POWERCHINA NINGXIA ENGINEERING Corp.,Ltd. Address before: 250000 Building No. 5, district three, Han Yu financial business center, Ji'nan, Shandong Patentee before: China Power Construction Group Shandong Electric Power Construction Co.,Ltd. |