CN104876131A - Method for dismantling large tower crane by using small tower crane - Google Patents
Method for dismantling large tower crane by using small tower crane Download PDFInfo
- Publication number
- CN104876131A CN104876131A CN201510207172.0A CN201510207172A CN104876131A CN 104876131 A CN104876131 A CN 104876131A CN 201510207172 A CN201510207172 A CN 201510207172A CN 104876131 A CN104876131 A CN 104876131A
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- Prior art keywords
- tower crane
- small
- scale
- dismantling
- crane
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000000725 suspension Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 12
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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
- 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
- B66C2700/00—Cranes
- B66C2700/03—Cranes with arms or jibs; Multiple cranes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Jib Cranes (AREA)
Abstract
The invention provides a method for dismantling a large tower crane by using a small tower crane, which comprises the following steps: installing a small tower crane at a proper position outside a building by using the large tower crane; the large tower crane descends the joint and descends the inner tower body; jacking the small tower crane until the hook bottom of a lifting hook of the small tower crane is higher than the tower tip of the large tower crane; removing all counter weights of the large tower crane; dismantling the large tower crane arm accessory; dismantling the large tower crane boom; dismantling a balance arm of the large tower crane; dismantling the tower tip of the large tower crane; dismantling a large tower crane rotation assembly; dismantling a tower body in the large tower crane; and (4) dismantling the standard sections and the wall-attached connecting pieces of the large tower crane section by section. The invention solves the technical problem that how to use lower cost and ensure to safely dismantle the large tower crane arranged in the core tube of the super high-rise building for construction when the large tower crane or the roof crane is not installed in enough places or working surfaces in the prior art.
Description
Technical field
The invention belongs to technical field of building construction, be specifically related to a kind of method of Demolition Construction large-scale tower crane, particularly a kind of method utilizing small-sized tower crane to remove large-scale tower crane.
Background technology
In high-rise building, many employing steel concrete group frames and core wall structure.During construction, the large-scale tower crane for lifting by crane building materials and steel beam column is usually placed in core can be inner, and after causing fabric structure to bind like this, tower crane conveniently program can not be fallen joint dismounting.In current Construction practices, general way is that outside the building face installs a same model or the larger tower crane of hoisting capacity in addition, is then removed by the tower crane in Core Walls Structure by this tower crane.This construction method one is that cost is high, and two is that the place that needs is large, running into the special situation in building geographic position, as being positioned at the positions such as large scale business district, transport hub, usually not having enough workyards to be used for installing an other tower crane.A kind of construction method is also had to be that use roofing hangs the major mechanical as the work of dismounting, and the same cost of this construction method is high, and has impact to the structure of building, adds safety hazard; Meanwhile, in this construction method, the roofing adopted hangs and can not carry out follow-up tailing in work to this project construction.
Summary of the invention
The present invention proposes a kind of method utilizing small-sized tower crane to remove large-scale tower crane, when not having enough places or driving surface installation large-scale tower crane or roofing to hang in solution prior art, how to use the technical barrier of lower cost Demolition Construction large-scale tower crane.
Technical scheme of the present invention is achieved in that a kind of method utilizing small-sized tower crane to remove large-scale tower crane, comprises the following steps:
1) large-scale tower crane is utilized outside the building appropriate location to be installed by small-sized tower crane;
2) large-scale tower crane is fallen and is saved and the interior tower body that declines;
3) at the bottom of small-sized tower crane jacking to its suspension hook hook higher than large-scale tower crane pinnacle of a pagoda;
4) small-sized tower crane is utilized to remove the whole counterweight of large-scale tower crane;
5) large-scale tower crane large arm annex is removed;
6) large-scale tower crane large arm is removed;
7) large-scale tower crane equilibrium arm is removed;
8) large-scale tower crane pinnacle of a pagoda is removed;
9) large-scale tower crane rotating assembly is removed;
10) tower body in large-scale tower crane is removed;
11) large-scale tower crane standard knot and attached wall attaching parts is removed section by section.
More than remove step, first utilize large-scale tower crane oneself remove and decline, then utilize small-sized tower crane large-scale tower crane various piece to be removed respectively, given full play to the crane capacity of small-sized tower crane, reached maximum economic benefit with minimum cost.
In order to improve the safety of construction better, in small-sized tower crane wall-attaching equipment together with being provided with between building at least, in order to fixing small-sized tower crane.
The present invention solves large-scale tower crane smoothly safely and is arranged in Core Walls Structure, cannot fall after construction joint narrow to the height on ground, scene, around under the complicated situation of geographic position, small-sized tower crane is selected large-scale tower crane to be removed, small-sized tower crane can be utilized again to carry out ending operation simultaneously, meet site safety and requirements of cost management.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is before small-sized tower crane jacking, elevation drawing before joint falls in large-scale tower crane;
Fig. 2 is after small-sized tower crane jacking, elevation drawing after joint falls in large-scale tower crane.
Mark in figure, 1, building; 2, large-scale tower crane; 3, small-sized tower crane; 4, small-sized crane hook; 5, large-scale tower crane standard knot; 6, large-scale tower crane counterweight; 7, large-scale tower crane large arm; 8, large-scale tower crane equilibrium arm; 9, large-scale tower crane pinnacle of a pagoda; 10, wall-attaching equipment.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In the present embodiment, large-scale tower crane 2 model is QTZ450, is arranged in building 1 Core Walls Structure.During dismounting, height at the bottom of hook is 160m, and camp site is positioned at bustling position, center, city, and office of municipal government, central place, car personnel are very intensive at ordinary times, and traffic can not be interrupted again, narrow field, are not enough to the tower crane of an installation same model.For this reason, a small-sized tower crane 3 can only be selected to carry out dismounting operation.Because large-scale tower crane large arm 6 weight is 17.43 tons, removing weight after annex is 15.61 tons, so select maximum hoisting weight to be the small-sized tower crane 3 of the QTZ250 model of 16 tons.
As shown in Figure 1, first utilizing large-scale tower crane 2 to install small-sized tower crane 3 in the outside appropriate location of building 1 to specified altitude assignment, is the height of 45 standard knot tower bodies in this example.Horizontal throw about 20.7 meters between large-scale tower crane 2 and small-sized tower crane 3.For the sake of security, according to site specific, small-sized tower crane 3 when mounted, and arranges wall-attaching equipment 10 between building 1, is provided with five roads in this example, by fixing on the building 1 for small-sized tower crane 3.
Then, as shown in Figure 2, the interior tower body that declines falls joint two standard knots 5 and in large-scale tower crane 2, until edge on Core Walls Structure, till can not continuing to fall joint.Small-sized tower crane 3 jacking six saves to 163 meters, now at the bottom of small-sized crane hook 4 hook higher than about 2.3 meters, large-scale tower crane pinnacle of a pagoda 9.Then, small-sized tower crane 3 is utilized all to remove the annex (as luffing motor, amplitude variation trolley, suspension hook, the stull of arm point, maintenance frame etc.) of large-scale tower crane counterweight 6, large-scale tower crane 2 successively, now the residuals weight of large-scale tower crane large arm 7 reaches the maximum hoisting weight of small-sized tower crane 3, large-scale tower crane large arm 7 can be removed; Then remove large-scale tower crane equilibrium arm 8, large-scale tower crane pinnacle of a pagoda 9 successively again, remove large-scale tower crane rotating assembly, remove tower body in large-scale tower crane; Finally remove large tower standard knot 5 and attached wall attaching parts 10 section by section.So far the dismounting work of whole large-scale tower crane 2 is completed.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. utilize small-sized tower crane to remove a method for large-scale tower crane, it is characterized in that: comprise the following steps:
1) large-scale tower crane is utilized outside the building appropriate location to be installed by small-sized tower crane;
2) large-scale tower crane is fallen and is saved and the interior tower body that declines;
3) at the bottom of small-sized tower crane jacking to its suspension hook hook higher than large-scale tower crane pinnacle of a pagoda;
4) small-sized tower crane is utilized to remove the whole counterweight of large-scale tower crane;
5) large-scale tower crane large arm annex is removed;
6) large-scale tower crane large arm is removed;
7) large-scale tower crane equilibrium arm is removed;
8) large-scale tower crane pinnacle of a pagoda is removed;
9) large-scale tower crane rotating assembly is removed;
10) tower body in large-scale tower crane is removed;
11) large-scale tower crane standard knot and attached wall attaching parts is removed section by section.
2. a kind of method utilizing small-sized tower crane to remove large-scale tower crane according to claim 1, is characterized in that: in described step 1), in described small-sized tower crane wall-attaching equipment in order to fixing described small-sized tower crane together with being provided with between building at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510207172.0A CN104876131A (en) | 2015-04-28 | 2015-04-28 | Method for dismantling large tower crane by using small tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510207172.0A CN104876131A (en) | 2015-04-28 | 2015-04-28 | Method for dismantling large tower crane by using small tower crane |
Publications (1)
| Publication Number | Publication Date |
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| CN104876131A true CN104876131A (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510207172.0A Pending CN104876131A (en) | 2015-04-28 | 2015-04-28 | Method for dismantling large tower crane by using small tower crane |
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| CN (1) | CN104876131A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868161A (en) * | 2018-09-17 | 2018-11-23 | 陕西建工第三建设集团有限公司 | Adhere to console mode tower crane outside a kind of super-high building structure to interlock construction method |
| 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 |
| CN111533005A (en) * | 2020-04-17 | 2020-08-14 | 中国化学工程第三建设有限公司 | Method for disassembling large tower crane arm rod by using small tower crane |
| CN111677334A (en) * | 2020-04-27 | 2020-09-18 | 中建科工集团有限公司 | Method for removing suspension measure material |
| CN113023591A (en) * | 2021-03-01 | 2021-06-25 | 中铁建工集团有限公司 | Large-scale circular construction method for small-dismantling of flat-arm type internal-climbing tower crane |
| CN116220367A (en) * | 2023-03-09 | 2023-06-06 | 中国建筑第二工程局有限公司 | Construction method for non-shutdown conversion of building tower crane arrangement |
Citations (4)
| 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 |
| JP2009286531A (en) * | 2008-05-27 | 2009-12-10 | Arai Gumi Ltd | Dismantling method of tower crane |
| CN102795558A (en) * | 2012-08-23 | 2012-11-28 | 中铁五局集团建筑工程有限责任公司 | Method for dismounting tower crane installed by lift well, and mast hanger |
| CN103523683A (en) * | 2013-10-16 | 2014-01-22 | 温州建设集团有限公司 | Construction method for dismantling tower crane by use of small hoisting equipment |
-
2015
- 2015-04-28 CN CN201510207172.0A patent/CN104876131A/en active Pending
Patent Citations (4)
| 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 |
| JP2009286531A (en) * | 2008-05-27 | 2009-12-10 | Arai Gumi Ltd | Dismantling method of tower crane |
| CN102795558A (en) * | 2012-08-23 | 2012-11-28 | 中铁五局集团建筑工程有限责任公司 | Method for dismounting tower crane installed by lift well, and mast hanger |
| CN103523683A (en) * | 2013-10-16 | 2014-01-22 | 温州建设集团有限公司 | Construction method for dismantling tower crane by use of small hoisting equipment |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868161A (en) * | 2018-09-17 | 2018-11-23 | 陕西建工第三建设集团有限公司 | Adhere to console mode tower crane outside a kind of super-high building structure to interlock construction method |
| CN108868161B (en) * | 2018-09-17 | 2020-08-07 | 陕西建工第三建设集团有限公司 | Staggered construction method for external attachment landing type tower crane of super high-rise building structure |
| 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 |
| CN111533005A (en) * | 2020-04-17 | 2020-08-14 | 中国化学工程第三建设有限公司 | Method for disassembling large tower crane arm rod by using small tower crane |
| CN111677334A (en) * | 2020-04-27 | 2020-09-18 | 中建科工集团有限公司 | Method for removing suspension measure material |
| CN113023591A (en) * | 2021-03-01 | 2021-06-25 | 中铁建工集团有限公司 | Large-scale circular construction method for small-dismantling of flat-arm type internal-climbing tower crane |
| CN116220367A (en) * | 2023-03-09 | 2023-06-06 | 中国建筑第二工程局有限公司 | Construction method for non-shutdown conversion of building tower crane arrangement |
| CN116220367B (en) * | 2023-03-09 | 2024-12-03 | 中国建筑第二工程局有限公司 | A construction method for changing the layout of building tower cranes without stopping work |
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Application publication date: 20150902 |
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| WD01 | Invention patent application deemed withdrawn after publication |