CN211898514U - Integrated tower crane foundation structure device - Google Patents
Integrated tower crane foundation structure device Download PDFInfo
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- CN211898514U CN211898514U CN202020444161.0U CN202020444161U CN211898514U CN 211898514 U CN211898514 U CN 211898514U CN 202020444161 U CN202020444161 U CN 202020444161U CN 211898514 U CN211898514 U CN 211898514U
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Abstract
The utility model discloses an integration tower crane foundation structure device, including tower crane and connecting piece, still satisfy the former basis of tower crane installation requirement including ground bearing capacity, geometry cross sectional dimension and the basic arrangement of reinforcement after reforming transform, the tower crane is installed on former basis through the bolt that is used as the connecting piece. By adopting the utility model, the new tower crane foundation can be avoided to be built; after the tower crane is used, the tower crane does not need to be dismantled, the original foundation can be continuously used, the construction progress is accelerated, and the material and labor cost are saved.
Description
Technical Field
The utility model relates to a tower crane field of building trade particularly, relates to an integration tower crane foundation structure device.
Background
In the construction industry, common tower cranes used for vertical and horizontal transportation are widely used due to their wide coverage and high efficiency. In order to ensure the safety of the tower crane during use, the tower crane needs to be installed on the tower crane foundation. The tower crane foundation is usually in a form that a manufacturer provides a foundation drawing according to a specific tower type, and the size of the foundation and whether foundation treatment is needed or not are determined by combining the bearing capacity of the foundation.
Taking QTZ63 type tower as an example, when the bearing capacity of the foundation is different, the size of the foundation changes, and when the bearing capacity of the foundation is between 150Kpa and 220Kpa, the size of the tower crane foundation is between 5m multiplied by 5m and 6m multiplied by 6m, and the thickness of the foundation is 1.35 to 1.5m, the requirement can be met; the concrete is C30 or C35 concrete. When collapsible soil, backfill soil or foundation bearing capacity cannot be met, a pile foundation treatment mode is generally adopted. The method is a common tower crane foundation treatment mode in engineering. By adopting the above treatment mode, higher construction cost is needed, and meanwhile, after the tower crane is used, the tower crane foundation is required to be dismantled, so that time and labor are wasted, and building waste is generated, thereby causing the problem of environmental protection.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an integration tower crane foundation structure device for the construction brings facility, reduces cost and improves the effect, improves construction safety factor moreover by a wide margin.
The utility model adopts the following technical scheme:
the utility model provides an integration tower crane foundation structure device, includes tower crane and connecting piece, still includes following former basis: a) the bearing capacity and the geometric cross section size of the foundation are respectively larger than those of the original foundation required by the installation of the tower crane, and the tower crane is directly installed on the original foundation through a connecting piece; or b) thickening the original foundation with the foundation bearing capacity smaller than that required by installing the tower crane, reducing the bottom elevation to a layer with larger foundation bearing capacity, and installing the tower crane on the thickened original foundation through a connecting piece; or c) the geometric section size is smaller than the original foundation of the geometric section size required by the installation of the tower crane, the section size of the original foundation is increased, and the tower crane is installed on the original foundation with the increased section size through the connecting piece; or d) the reinforcing bars are smaller than the original foundation of the reinforcing bars required by the installation of the tower crane, the reinforcing bars of the original foundation are enlarged, and the tower crane is installed on the original foundation after the reinforcing bars are enlarged through the connecting piece.
By adopting the technical scheme, the requirement of the bearing capacity of the foundation and the requirement of the geometric section size of the tower crane foundation are met after the original foundation is transformed, so that the new tower crane foundation can be avoided from being built again; after the tower crane is used, only the original foundation needs to be repaired according to the initial design requirement without dismantling operation, the original foundation can be continuously used, the construction progress is accelerated, and the material and labor cost are saved.
Drawings
FIG. 1 is a schematic structural diagram of an integrated tower crane foundation structure device with an original foundation as a raft foundation;
FIG. 2 is a schematic structural diagram of an integrated tower crane foundation structure device with an original foundation as a step foundation;
in the figure, 1, an original base; 2. tower crane; 3. a connecting member.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, former basis is raft foundation, according to the utility model discloses an integration tower crane foundation structure device comprises former basis 1, tower crane 2 and connecting piece 3, and wherein, connecting piece 3 adopts the bolt that the producer provided along with the tower crane together.
In this example, the bearing capacity of the foundation required by the QTZ63 type tower crane installation is 150kpa, and the required geometric cross-sectional dimension is 6m × 6 m. Before the original foundation 1 is poured, the original foundation 1 is measured and calculated in advance. For the original foundation with foundation bearing capacity larger than 150kpa and geometric section size larger than 6 multiplied by 6m, the original foundation is not changed; for the original foundation with the foundation bearing capacity less than 150kpa and the geometric section size greater than 6 multiplied by 6m, when the total bearing capacity is calculated to meet the requirement, the original foundation can be not changed, otherwise, when the total bearing capacity is not met, the base section size can be increased or the section size is not increased, so that the base elevation of the foundation (equivalent to thickening the original foundation) is reduced to the state that the higher bearing capacity meets 150 kpa. In a word, the total stress of the foundation bearing capacity multiplied by the base floor area meets the specified stress of the tower crane. For an original foundation with foundation bearing capacity larger than 150kpa and geometric section size smaller than 6 x 6m, the minimum section size of the tower crane foundation is required to be met, the length is increased when the length is not met, and the width is increased when the width is not met. For the reinforcement of the foundation, the reinforcement rate of the tower crane foundation can be met, and the reinforcement interval can be shortened or the number of the reinforcements can be increased or the diameter of the reinforcements can be increased when the reinforcement rate of the tower crane foundation is not met.
And after all the parameters meet the qualified requirements, pouring the original foundation. Firstly, binding reinforcing steel bars, embedding a bolt 3 provided by a tower crane manufacturer in a foundation in advance, then sealing a reinforcing template, and pouring concrete. After the concrete is solidified, the tower crane 2 is fixed on the transformed original foundation 1 through the bolt 3, the installation work of the tower crane is completed according to the design scheme, and the tower crane can be put into use after being qualified. And (4) dismantling the tower crane 2 after use. And finally, cutting off the bolts embedded in the original foundation 1 and exposing the surface of the structure, and repairing according to the original design requirement of the original foundation 1.
Referring to fig. 2, the original foundation 1 is a step foundation, and is based on the part above the bottom step. Before construction, whether the design of the upper foundation meets the requirements of the bearing capacity, the geometric section size and the reinforcement of the foundation for tower crane installation is judged. When meeting the requirements, reserving an upper reinforcing steel bar, and according to the requirements of a tower crane drawing, directly pouring the upper reinforcing steel bar together with the bolt 3 in the foundation when pouring the upper foundation, and simultaneously playing a role in inserting the steel bars. After the concrete is cured, the tower crane 2 is installed and disassembled according to the scheme. When the requirements of the tower crane are not met, the cross section size, the thickness of the upper foundation and the reinforcing bars are changed to adjust. After the tower crane is used, the upper foundation is modified to meet the initial design requirements, and the specific details refer to the contents described with reference to fig. 1.
For a QTZ63 type tower crane, if a tower crane foundation is built, under the condition that piles are not adopted for processing below the tower crane foundation, the size of the foundation is calculated according to 6m by 1.35m, C35 concrete is poured, C15 concrete with the thickness of 0.1m is used as a cushion layer, and the material cost and labor cost of steel bars and the like are added, so that about 3.5-4 ten thousand yuan is required. But directly transform on former basis 1, can save most tower crane foundation construction cost, and whole factor of safety is high. After the tower crane is used, the tower crane foundation does not need to be dismantled, so that the cost is saved, and the tower crane is green and environment-friendly.
This integration tower crane foundation structure device still can popularize and apply to relevant independent basis, pump basis etc..
The above description is only a few embodiments of the present invention. Those skilled in the art can make various modifications and changes within the spirit and scope of the present invention, and these modifications and changes are within the scope of the present invention.
Claims (1)
1. The utility model provides an integration tower crane foundation structure device, includes tower crane and connecting piece, its characterized in that: the method also comprises the following original foundation: a) the bearing capacity and the geometric cross section size of the foundation are respectively larger than those of the original foundation required by the installation of the tower crane, and the tower crane is directly installed on the original foundation through a connecting piece; or b) thickening the original foundation with the foundation bearing capacity smaller than that required by installing the tower crane, reducing the bottom elevation to a layer with larger foundation bearing capacity, and installing the tower crane on the thickened original foundation through a connecting piece; or c) the geometric section size is smaller than the original foundation of the geometric section size required by the installation of the tower crane, the section size of the original foundation is increased, and the tower crane is installed on the original foundation with the increased section size through the connecting piece; or d) the reinforcing bars are smaller than the original foundation of the reinforcing bars required by the installation of the tower crane, the reinforcing bars of the original foundation are enlarged, and the tower crane is installed on the original foundation after the reinforcing bars are enlarged through the connecting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020444161.0U CN211898514U (en) | 2020-03-31 | 2020-03-31 | Integrated tower crane foundation structure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020444161.0U CN211898514U (en) | 2020-03-31 | 2020-03-31 | Integrated tower crane foundation structure device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211898514U true CN211898514U (en) | 2020-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020444161.0U Active CN211898514U (en) | 2020-03-31 | 2020-03-31 | Integrated tower crane foundation structure device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211898514U (en) |
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2020
- 2020-03-31 CN CN202020444161.0U patent/CN211898514U/en active Active
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