CN117246907A - Group tower construction method for alternately easily dislocation tower lifting - Google Patents
Group tower construction method for alternately easily dislocation tower lifting Download PDFInfo
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- CN117246907A CN117246907A CN202311357798.0A CN202311357798A CN117246907A CN 117246907 A CN117246907 A CN 117246907A CN 202311357798 A CN202311357798 A CN 202311357798A CN 117246907 A CN117246907 A CN 117246907A
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- tower
- translocation
- constant low
- cranes
- lifting
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- 238000010276 construction Methods 0.000 title claims abstract description 37
- 230000005945 translocation Effects 0.000 claims abstract description 62
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000005192 partition Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000009435 building construction Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- 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)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a group tower construction method for alternately lifting dislocation towers, which comprises the following steps of: dividing the building engineering into a plurality of work areas; setting three tower cranes in each work area, wherein the hoisting range of the three tower cranes fully covers the work area, the three tower cranes comprise a constant low tower, a middle translocation tower and a high translocation tower, and the initial fall of the three tower cranes is respectively a preset height; and gradually lifting the three tower cranes according to a plurality of stages, wherein in each lifting stage, the top of the middle translocation tower is lifted to at least twice of a preset height, the constant low tower is lifted to a preset height, and the high translocation tower maintains the original height, so that the middle translocation tower is converted into the high translocation tower of the next stage, the high translocation tower is converted into the middle translocation tower of the next stage, and the constant low tower is still the constant low tower of the next stage. The method solves the problems that the existing construction engineering with larger volume adopts partition construction, and the construction shutdown is easy to occur due to lack of uniform deployment of a group engineering cluster tower suspended ceiling lifting scheme.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a group tower construction method for alternately easily dislocation tower top lifting.
Background
Tower cranes are important vertical transport equipment in the construction process of building engineering, and the safety and the use efficiency of the tower cranes are particularly interesting. At present, when constructing a cluster tower crane for group engineering, the focus is mainly on the aspects of tower crane coverage area, crane weight, attachment, detachment, tower body horizontal distance, foundation positioning and the like, and the influence of later-stage tower suspended ceiling lifting error tower on the tower construction progress is ignored.
Normally, the tower suspended ceiling lifting scheme is responsible for a tower crane company, construction deployment and progress control of each building are not participated in the construction process, scheme making is more ideal, influences caused by later construction changes are not considered, and global and systematic properties are not provided. Moreover, the engineering with larger volume is often divided into a plurality of work areas, and each work area is lack of uniform deployment, so that the risk of main building construction stagnation, incapability of rising by the top of the tower and large arm collision occurs in the later stage. At this time, the problem is solved only by increasing temporary attachment and arm cutting of the tower crane or readjusting the tower group according to the actual progress, and the heights of the towers are redetermined, so that the risk of lowering the tower exists, the risk of safety management and control is large, the construction period is prolonged, the cost is increased, and the project performance is unfavorable.
Disclosure of Invention
In order to overcome the defects existing in the prior art, the invention provides a group tower construction method for alternately easily dislocation tower lifting, so as to solve the problems that the existing construction engineering with larger volume adopts partition construction, and the group engineering group tower suspended ceiling lifting scheme lacks uniform deployment and is easy to cause construction downtime.
In order to achieve the above purpose, a group tower construction method for lifting alternate dislocation-prone towers is provided, which comprises the following steps:
dividing the building engineering into a plurality of work areas;
setting three tower cranes in each work area, wherein the hoisting ranges of the three tower cranes fully cover the work areas, the three tower cranes comprise a constant low tower, a middle-translocation tower and a high translocation tower, and the initial fall of the three tower cranes is respectively a preset height;
and gradually lifting the three tower cranes according to a plurality of stages, wherein in each lifting stage, the middle-translocation tower is lifted to at least twice the preset height, the constant low tower is lifted to one preset height, the high translocation tower maintains the original height, so that the middle-translocation tower is converted into the high translocation tower of the next stage, the high translocation tower is converted into the middle-translocation tower of the next stage, and the constant low tower is still the constant low tower of the next stage.
Further, the preset height is greater than or equal to the height of the two standard knots.
Further, the tower crane is a flat head crane.
Further, the tower crane is connected to the building structure through a plurality of attachment rods.
The method has the beneficial effects that the method for constructing the group tower with the alternate easy dislocation tower top is creatively provided with the 'low tower constant low, high and medium towers alternate translocation' lifting error tower method, and the lifting error tower is combined with the tower construction progress, so that the tower construction is ensured not to be stagnated due to the incapability of lifting the group tower, the construction period is ensured, and the power-assisted project performance is ensured. The area of the same work area is covered by at most 3 tower cranes, so that excessive cross coverage among the group towers is avoided, the engineering potential safety hazard is reduced, and the group tower management is facilitated. Compared with the traditional jacking attachment scheme, the tower crane jacking attachment section of the group tower construction method for alternately easily dislocation tower jacking does not adopt temporary attachment, the construction progress of a tower is not affected due to disorder of the group tower jacking, the on-site group tower jacking is orderly, the tower construction is stably advanced, the invalid labor cost, the material waste and the temporary attachment cost are reduced, and the construction period is ensured.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:
FIG. 1 is a schematic diagram of an initial state of a cluster tower in a work area according to an embodiment of the invention.
Fig. 2 is a schematic diagram of a tower group state after a first lifting stage according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a tower group state after a second lifting stage according to an embodiment of the present invention.
Detailed Description
The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the invention are shown in the drawings.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1 to 3, the invention provides a group tower construction method for lifting an alternate dislocation tower, which comprises the following steps:
s1, dividing the building engineering into a plurality of work areas.
S2, arranging three tower cranes 1 in each work area, wherein the hoisting range of the three tower cranes 1 fully covers the work area, wherein the three tower cranes 1 comprise a constant low tower A, a middle-translocation tower B and a high translocation tower C, and the initial fall of the three tower cranes 1 is respectively a preset height.
In this embodiment, the tower crane 1 is a crane head. The tower crane 1 is connected to the building structure by a plurality of attachment bars 11. The tower body of the tower crane is coaxially installed together by a plurality of standard sections.
The drop between a constant low tower A, a middle translocation tower B and a high translocation tower C, namely the drop between the constant low tower A and the middle translocation tower B is a preset height; the drop between a middle-translocation tower B and a high-translocation tower C is a preset height.
As a preferred embodiment, a predetermined height is equal to or greater than the height of two standard knots.
And S3, gradually lifting three tower cranes 1 according to a plurality of stages, wherein in each lifting stage, a middle-translocation tower B is lifted to at least twice a preset height, a constant low tower A is lifted to a preset height, and a high translocation tower C maintains the original height, so that the middle-translocation tower B is converted into a high translocation tower C in the next stage, the high translocation tower C is converted into a middle-translocation tower B in the next stage, and the constant low tower A is still the constant low tower A in the next stage.
At a large construction site, a cluster tower crane is arranged, and at most m tower cranes are covered in the area of the same work area, so that the tower cranes in the work area can be determined to have n different vertical heights, and the relation that n is more than or equal to m exists. The field can be fully covered by the tower crane under the condition that the area of the same work area is at least covered by 3 tower cranes. The fewer the types of the vertical heights of the combined tower cranes are, the more favorable is for the group tower to ascend and descend, so that the same area is covered by 3 tower cranes when the group towers are arranged on site, namely, the condition that m=n=3 is selected, the group towers are divided into three layers of high towers, middle towers and low towers on the vertical heights, so that the on-site use requirement is met, and the group tower to ascend and descend is also favorable.
The method for lifting the group tower in each work area follows the lifting fault tower lifting of 'low tower constant low and high and medium tower alternate translocation'.
Specifically, the initial height of the high translocation tower is determined in the first step, the initial height of the high translocation tower is the maximum free height, the middle translocation tower is 2 standard knot heights lower than the high translocation tower, and the constant low tower is 2 standard knot heights lower than the middle translocation tower.
And a second step of: and lifting the middle translocation tower and the constant low tower to ensure that the original constant low tower is still at the constant low tower position, and the original high translocation tower is changed into the middle translocation tower, and the original middle translocation tower is at the high translocation tower position.
And a third step of: when the constant-low tower needs to be lifted again, the second step sequence is repeated, the tower crane height is circulated once, the vertical height layers of the towers are returned to the original, and the subsequent construction is repeated.
a. The initial stage: the initial installation heights of the constant low tower, the middle translocation tower and the high translocation tower are shown in the following figure 1, the high translocation tower is 14 knots, and the height is 40.5m; the middle tower for translocation is 12 sections and the height is 34.9 meters; constant low tower 10 sections, height 29.3 meters.
b. A first jacking stage: the high translocation tower is stationary, the top of the tower in translocation is changed into the high translocation tower (meanwhile, the first attachment is constructed), the constant low tower top keeps the constant low tower level unchanged, and as shown in the following figure 2, the high translocation tower (5 knots of the top of the tower in initial translocation are converted into the high translocation tower) is 17 knots, and the height is 48.9m; the middle translocation tower is 14 knots (namely an initial translocation high tower) and has the height of 40.5 meters; constant low tower (initial constant low tower overhead 2 knots) 12 knots, 34.9 meters high.
c. And a second jacking stage: the high translocation tower is stationary, the top of the high translocation tower is changed into the high translocation tower (the first attachment is constructed at the same time), the constant low tower is kept at a constant low tower level, and as shown in the following figure 3, the high translocation tower (5 knots of the top of the high translocation tower are converted into the high translocation tower in the last stage) is 19 knots, and the height is 54.5m; the middle translocation tower is 7 knots (namely a translocation high tower in the last stage) and has the height of 48.9 meters; the constant low tower (2 sections of the constant low tower at the last stage) has a section 14 and a height of 40.5 meters.
d. And a third jacking stage: the high translocation tower is fixed, the tower top in translocation is changed into the high translocation tower (a second attachment rod is constructed at the same time), and the constant low tower top maintains the constant low tower level unchanged.
e. And a fourth jacking stage: the high translocation tower is fixed, the tower top in translocation is changed into the high translocation tower (a second attaching rod is constructed at the same time), and the 3 sections of the constant low tower top are kept unchanged at the constant low tower level, so that the final height is reached.
The tower suspended ceiling can be lifted and attached to the wall by reciprocating in this way, and the tower suspended ceiling is at the final design completion height.
The invention provides a lifting tower-staggering method of 'low tower constant low, high and medium towers alternately translocation', which is creatively provided by the group tower construction method of alternately easy dislocation tower lifting, combines the lifting tower-staggering with the tower construction progress, ensures that the tower construction is not stagnant due to the fact that the group tower cannot be lifted, and ensures construction period and power-assisted project performance. The area of the same work area is covered by at most 3 tower cranes, so that excessive cross coverage among the group towers is avoided, the engineering potential safety hazard is reduced, and the group tower management is facilitated. Compared with the traditional jacking attachment scheme, the tower crane jacking attachment section of the group tower construction method for alternately easily dislocation tower jacking does not adopt temporary attachment, the construction progress of a tower is not affected due to disorder of the group tower jacking, the on-site group tower jacking is orderly, the tower construction is stably advanced, the invalid labor cost, the material waste and the temporary attachment cost are reduced, and the construction period is ensured.
The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the invention referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the invention. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.
Claims (4)
1. The group tower construction method for the alternate easy dislocation tower top lifting is characterized by comprising the following steps of:
dividing the building engineering into a plurality of work areas;
setting three tower cranes in each work area, wherein the hoisting ranges of the three tower cranes fully cover the work areas, the three tower cranes comprise a constant low tower, a middle-translocation tower and a high translocation tower, and the initial fall of the three tower cranes is respectively a preset height;
and gradually lifting the three tower cranes according to a plurality of stages, wherein in each lifting stage, the middle-translocation tower is lifted to at least twice the preset height, the constant low tower is lifted to one preset height, the high translocation tower maintains the original height, so that the middle-translocation tower is converted into the high translocation tower of the next stage, the high translocation tower is converted into the middle-translocation tower of the next stage, and the constant low tower is still the constant low tower of the next stage.
2. The method for constructing a group tower with alternate dislocation-prone tower elevation according to claim 1, wherein the preset height is equal to or greater than the height of two standard knots.
3. The method of claim 1, wherein the tower crane is a flat head crane.
4. The method of claim 1, wherein the tower crane is connected to the building structure by a plurality of attachment bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311357798.0A CN117246907A (en) | 2023-10-19 | 2023-10-19 | Group tower construction method for alternately easily dislocation tower lifting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311357798.0A CN117246907A (en) | 2023-10-19 | 2023-10-19 | Group tower construction method for alternately easily dislocation tower lifting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117246907A true CN117246907A (en) | 2023-12-19 |
Family
ID=89131258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311357798.0A Pending CN117246907A (en) | 2023-10-19 | 2023-10-19 | Group tower construction method for alternately easily dislocation tower lifting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117246907A (en) |
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2023
- 2023-10-19 CN CN202311357798.0A patent/CN117246907A/en active Pending
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