CN111232849A - Tower crane dismantling method - Google Patents
Tower crane dismantling method Download PDFInfo
- Publication number
- CN111232849A CN111232849A CN202010064457.4A CN202010064457A CN111232849A CN 111232849 A CN111232849 A CN 111232849A CN 202010064457 A CN202010064457 A CN 202010064457A CN 111232849 A CN111232849 A CN 111232849A
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- CN
- China
- Prior art keywords
- crane
- tower crane
- dismantling
- counterweight
- ground
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
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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
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a tower crane dismantling method, which is characterized in that a counterweight is dismantled and moved away through a lifting device, then a crane boom is dismantled, after the crane boom is dismantled, the slewing radius of the rest part of a tower crane is smaller, the slewing radius of a hoisting counterweight arm is reduced by times, the tonnage of a truck crane is greatly reduced, a large truck crane is avoided, and the problem of reinforcing a top plate of an apron building basement is avoided.
Description
Technical Field
The invention belongs to the technical field of high-rise building tower crane dismantling, and particularly relates to a dismantling method of a high-rise building with an apron building.
Background
The urban development leads high-rise buildings to be more and more, large-scale complexes such as hotels, shopping malls and the like gradually enter the city, a plurality of large-scale complexes such as hotels, shopping malls and the like are all of a tower building and an apron building structure, the tower building is a high-rise building, and the apron building is a multi-story building; the appearance of the structure can meet the fire-proof standard requirements of multi-storey buildings, maximize the commercial benefits of the large-space skirt building, not only meet the functions of commercial retail, entertainment, large-scale catering and entertainment, but also save cultivated land, beautify cities and increase the urban functions.
In the structure construction process of tower building plus skirt building, the tower crane plays the role of lifting the weight in the construction, all building materials are transported by the tower crane, and whether the arrangement of the tower crane is reasonable or not is directly related to the success or failure of the engineering. However, the arrangement of the tower cranes for the buildings is difficult, the tower cranes are arranged on the tower sides, and the buildings on the skirt building part cannot be covered; the tower crane is arranged beside the skirt building, and the tower crane is attached to the building along with the increase of the building, so that the height of the skirt building is short, and the problem of installation and attachment cannot be solved; often arrange the tower crane in the skirt building plane and be close to tower building one side, solved the attached problem of the coverage of tower crane and tower crane simultaneously, like this, demolish of tower crane is more difficult, demolishs and needs large truck crane. When a basement is arranged beside the skirt building, the top plate of the basement needs to be reinforced when the large truck crane enters a construction site, so that the dismantling cost is increased, and the dismantling difficulty is improved.
Disclosure of Invention
The invention aims to solve the problems in the background art and provides a tower crane dismantling method.
In order to achieve the purpose, the invention provides the following technical scheme:
a tower crane dismantling method is characterized in that: the dismantling method comprises the following steps:
s1: lowering the tower crane to a height above the top surface of the undaria;
s2: fixing a portal upright post of the hoisting equipment on a counterweight arm right above a tower crane counterweight through a bolt by a rope and a pulley block;
s3: hoisting the portal beam through a rope and a pulley block, and fixedly installing the portal beam above the portal upright post;
s4: the lifting lugs are arranged in the longitudinal beams, and the longitudinal beams are fixed above the cross beam through bolts;
s5: the upper end of the inclined support is fixedly connected with the upper end of the portal upright post, and the lower end of the inclined support is fixedly connected with the counterweight arm;
s6: a hoist is fixedly arranged below the lifting lug;
s7: hoisting the balance weight through a hoist, pulling out the balance weight pin shaft, and placing the balance weight on the top surface of the podium;
s8: using a horizontal rolling rod to transport the balance weight to the working area of a truck crane on the ground and hoisting the balance weight to the ground;
s9: dismantling the crane boom by using a car crane positioned on the ground;
s10: loosening a brake pad of the tower crane rotating mechanism, and manually drawing the counterweight arm to rotate to the position of the crane arm through a rope;
s11: dismantling tower crane parts such as a counterweight arm and the like by using an automobile crane positioned on the ground;
s12: and finishing the dismantling work of the whole tower crane.
Further, the bolt in the step S2 is a horseback bolt.
Compared with the prior art, the counterweight is dismantled and moved away through the lifting equipment, then the dismantling work of the crane boom is carried out, after the crane boom is dismantled, the turning radius of the rest part of the tower crane is smaller, the turning radius of the hoisting counterweight arm is reduced by times, the tonnage of the truck crane is greatly reduced, the use of a large truck crane is avoided, and meanwhile the problem of reinforcing the basement roof of the skirt building is avoided.
Drawings
FIG. 1 is a block diagram of the present invention;
fig. 2 is a structural view of the lifting apparatus.
In the figure: 1. a portal column; 2. a gourd; 3. a gantry beam; 4. lifting lugs; 5. a stringer; 6. a counterweight pin shaft; 7. a counterweight arm; 8. balancing weight; 9. and (5) obliquely supporting.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides an embodiment:
the tower crane dismantling method comprises the following steps:
s1: lowering the tower crane to a height above the top surface of the undaria;
s2: fixing a gantry upright post 1 of a lifting device on a counterweight arm 7 right above a tower crane counterweight 8 through a riding bolt through a rope and a pulley block;
s3: hoisting the portal beam 3 through a rope and a pulley block, and fixedly installing the portal beam 3 above the portal upright post 1;
s4: the lifting lugs 4 are arranged in the longitudinal beams 5, and the longitudinal beams 5 are fixed above the cross beam 3 through bolts;
s5: the upper end of the inclined support 9 is fixedly connected with the upper end of the portal upright post 1, and the lower end of the inclined support 9 is fixedly connected with the counterweight arm 7;
s6: a hoist 2 is fixedly arranged below the lifting lug 4;
s7: hoisting the balance weight 8 through the hoist 2, pulling out the balance weight pin shaft 6, and placing the balance weight 8 on the top surface of the undaria pinnatifida;
s8: the balance weight 8 is transported to the working area of the truck crane on the ground by using the horizontal rolling rod and is hoisted to the ground;
s9: dismantling the crane boom by using a car crane positioned on the ground;
s10: loosening a brake pad of the tower crane rotating mechanism, and manually drawing the counterweight arm 7 to rotate to the position of a crane arm through a rope;
s11: dismantling tower crane parts such as a counterweight arm 7 and the like by using an automobile crane positioned on the ground;
s12: and finishing the dismantling work of the whole tower crane.
The invention has the beneficial effects that: the counterweight is dismantled and moved away through the lifting equipment, then the dismantling work of the crane boom is carried out, after the crane boom is dismantled, the turning radius of the rest part of the tower crane is smaller, the turning radius of the hoisting counterweight arm is reduced by times, the tonnage of the truck crane is greatly reduced, the use of a large truck crane is avoided, and meanwhile the problem of reinforcing the top plate of the basement of the skirt building is avoided.
Claims (2)
1. A tower crane dismantling method is characterized in that: the dismantling method comprises the following steps:
s1: lowering the tower crane to a height above the top surface of the undaria;
s2: a gantry upright post (1) of the hoisting equipment is fixed on a counterweight arm (7) right above a tower crane counterweight (8) through a rope and a pulley block;
s3: hoisting the portal beam (3) through a rope and a pulley block, and fixedly installing the portal beam (3) above the portal upright post (1);
s4: the lifting lugs (4) are arranged in the longitudinal beams (5), and the longitudinal beams (5) are fixed above the cross beam (3) through bolts;
s5: the upper end of the inclined support (9) is fixedly connected with the upper end of the portal upright post (1), and the lower end of the inclined support (9) is fixedly connected with the counterweight arm (7);
s6: a hoist (2) is fixedly arranged below the lifting lug (4);
s7: hoisting the balance weight (8) through the hoist (2), pulling out the balance weight pin shaft (6), and placing the balance weight (8) on the top surface of the skirt building;
s8: the balance weight (8) is transported to the working area of a truck crane on the ground by using a horizontal rolling rod and is hoisted to the ground;
s9: dismantling the crane boom by using a car crane positioned on the ground;
s10: loosening a brake pad of the tower crane rotating mechanism, and manually drawing the counterweight arm (7) to rotate to the position of a crane arm through a rope;
s11: using an automobile crane positioned on the ground to remove tower crane parts such as a counterweight arm (7) and the like;
s12: and finishing the dismantling work of the whole tower crane.
2. The tower crane dismantling method according to claim 1, wherein: the bolt in the step S2 is a horseback bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010064457.4A CN111232849A (en) | 2020-01-20 | 2020-01-20 | Tower crane dismantling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010064457.4A CN111232849A (en) | 2020-01-20 | 2020-01-20 | Tower crane dismantling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111232849A true CN111232849A (en) | 2020-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010064457.4A Pending CN111232849A (en) | 2020-01-20 | 2020-01-20 | Tower crane dismantling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111232849A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120001291A (en) * | 2010-06-29 | 2012-01-04 | 김병길 | Trolley for tower crane and luffing crane |
| CN107758528A (en) * | 2016-08-22 | 2018-03-06 | 郭莉 | Based on the method for improving dismounting safety of tower crane |
| CN108975181A (en) * | 2018-08-15 | 2018-12-11 | 中国电建集团贵州电力设计研究院有限公司 | A kind of method for dismounting of derrick crane |
| 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 |
-
2020
- 2020-01-20 CN CN202010064457.4A patent/CN111232849A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120001291A (en) * | 2010-06-29 | 2012-01-04 | 김병길 | Trolley for tower crane and luffing crane |
| CN107758528A (en) * | 2016-08-22 | 2018-03-06 | 郭莉 | Based on the method for improving dismounting safety of tower crane |
| CN108975181A (en) * | 2018-08-15 | 2018-12-11 | 中国电建集团贵州电力设计研究院有限公司 | A kind of method for dismounting of derrick crane |
| 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 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200605 |