Installation method of high tower steel column

Abstract

The invention relates to an installation method of high tower steel columns. Each frame steel column comprises N sections of hoisting section columns. The installation method comprises the following steps that the N hoisting section columns are sequentially hoisted from bottom to top through cooperation of a crane and a chain block; after two adjacent hoisting section columns are hoisted, frame beams and inter-column supports are installed, and the perpendicularity of the frame steel columns is measured and adjusted through two theodolites; the perpendicularity of the steel ball of the frame is measured by adopting the two theodolites, and compared with a method for calculating by measuring the elevation and the length of a steel member in the prior art, the measurement error is reduced, and the installation precision is improved; and meanwhile, the measurement work and the complex calculation process are reduced, and the labor force is reduced, so that the engineering cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure engineering, in particular to a method for installing a high tower steel column. Background Art

[0002] Currently, steel structures are primarily constructed of steel components assembled through welding and bolting. Due to their high strength, light weight, and excellent seismic resistance, they are widely used in large public and industrial buildings. However, steel structures require high installation precision, especially for structures exceeding 100 meters in height, where verticality monitoring and control are particularly important. Inspection and monitoring technology uses instrumentation to inspect and monitor construction projects. By measuring parameters such as deformation, displacement, and stress, it monitors a building's status in real time, ensuring its safety and quality.

[0003] Existing steel structure installation technology primarily relies on hoisting. First, the steel components are transported to the construction site and then hoisted to the designated location using a crane. Next, the steel components are secured together through welding, bolting, and other methods. Verticality is typically measured using instruments such as theodolites and levels. Theodolites measure angles and horizontal distances, while levels measure vertical heights. By combining these two instruments, the verticality deviation of the steel structure can be calculated.

[0004] However, although the existing steel structure installation and verticality detection technology has been widely used in practical projects, the following problems still exist.

[0005] 1) The installation accuracy of steel structures is limited by the accuracy of the measuring instruments themselves. Although existing measuring instruments can meet general accuracy requirements, their measurement accuracy is insufficient for steel structures with a height of more than 100 meters, thus affecting the installation accuracy of the steel structures.

[0006] 2) Existing verticality detection methods primarily rely on measuring the elevation and length of steel components. This method requires extensive measurement work and complex calculations, and is easily affected by external factors such as temperature fluctuations and wind, which can affect the accuracy of the measurement results.

[0007] 3) Existing steel structure installation and verticality testing technologies often require a lot of labor in actual operation, and the operation process is complex and time-consuming. This will undoubtedly increase the cost and construction time of large-scale steel structure projects. Summary of the Invention

[0008] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a method for installing high tower steel columns, which has the advantages of improving measurement accuracy and the accuracy of measurement results, ensuring the installation accuracy of steel structures; at the same time, it simplifies the verticality detection process, improves work efficiency, shortens the construction period, and reduces construction costs.

[0009] The above-mentioned object of the present invention is achieved by the following technical solution: a method for installing a high tower steel column, wherein each frame steel column includes N sections of hoisting sections, wherein N is a natural number greater than or equal to 1;

[0010] The installation method includes the following steps:

[0011] The hoisting columns in Section N are hoisted from bottom to top in sequence by using a crane and a hand chain hoist;

[0012] After the hoisting of the two adjacent hoisting sections is completed, the frame beams and the inter-column supports are installed, and the verticality of the frame steel columns is measured and adjusted using two theodolites.

[0013] Preferably, the method for installing a high tower steel column provided by the present invention comprises: sequentially lifting the N sections of the lifting columns from bottom to top by using a crane and a hand hoist; the method comprises:

[0014] Hang the first hoisting section column on the wire rope, lift the hook of the crane, and rotate the rod to the installation position after the first hoisting section column is off the ground;

[0015] When the hook is dropped to the preset distance from the top surface of the installation position, align it with the bolt hole or the tooling and drop it down. After aligning it with the axis, install the gasket and fasten the bolts.

[0016] The Lth hoisting section column is hoisted by cooperating with the crane and the hand hoist, wherein L is a natural number greater than or equal to 2.

[0017] Preferably, the method for installing a high tower steel column provided by the present invention comprises: hoisting the Lth section of the hoisting column by cooperating with the crane and the hand hoist;

[0018] Hanging the Lth section of the hoisting column on the wire rope, and rotating the rod to the docking position after the Lth section of the hoisting column is off the ground and reaches a predetermined height;

[0019] When the hook is dropped to a preset distance from the top surface of the installation position, the door-shaped positioning card on the lower hoisting section column is aligned and dropped, and after being aligned with the axis, the door-shaped positioning card is welded and fixed to the L-th section hoisting section column;

[0020] Weld the butt weld between the L-section hoisting section column and the lower hoisting section column. After welding is completed, cut off the door-shaped positioning card and grind it clean.

[0021] Preferably, in the installation method of the high tower steel column provided by the present invention, the preset distance ranges from 90 mm to 120 mm.

[0022] Preferably, the method for installing a high tower steel column provided by the present invention comprises: after the hoisting of the two adjacent hoisting sections is completed, installing the frame beams and the inter-column supports, and measuring and adjusting the verticality of the frame steel columns by using two theodolites, comprising:

[0023] Using a hanging cage as a temporary operating platform, the frame beams and the inter-column supports are installed on the frame steel columns;

[0024] When the frame steel ball is hoisted at the tail, two theodolites are set up at 90 degrees crosswise to measure the verticality of the frame steel ball.

[0025] Preferably, the installation method of the high tower steel column provided by the present invention detects the deviation of the upper and lower axes of the cylinders of the two theodolites, adjusts the thickness of the base pads of the two theodolites, and tightens the anchor bolts to achieve the specified verticality requirements of the two theodolites.

[0026] Preferably, in the installation method of the high tower steel column provided by the present invention, when the frame beam is installed, a level is used to measure the flatness of the frame beam and the column ends of the frame steel column, and the installation position of the upper hoisting section column is marked and marked.

[0027] Preferably, the installation method of the high tower steel column provided by the present invention allows a verticality deviation of 1‰, and the verticality deviation cannot exceed 30mm.

[0028] Preferably, in the method for installing high tower steel columns provided by the present invention, verticality measurement of the frame steel columns is performed in the morning.

[0029] Preferably, in the method for installing a high tower steel column provided by the present invention, the hand chain hoist adopts a 15t hand chain hoist.

[0030] In summary, the beneficial technical effects of the present invention are as follows: the installation method of the high tower steel column provided by the present application, each frame steel column includes N sections of hoisting sections; the installation method includes the following steps: the N sections of hoisting sections are hoisted in sequence from bottom to top by a crane and a hand winch; after the hoisting of two adjacent sections of hoisting sections is completed, the frame beams and the inter-column supports are installed, and the verticality of the frame steel columns is measured and adjusted by two theodolites; by using two theodolites to measure the verticality of the frame steel balls, compared with the method of calculating by measuring the elevation and length of the steel components in the prior art, the measurement error is reduced and the installation accuracy is improved; at the same time, the measurement work and the complex calculation process are reduced, the labor force is reduced, and thus the project cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1The figure is a flow chart of a method for installing a high tower steel column provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below with reference to the accompanying drawings.

[0033] Reference Figure 1 , which is a method for installing a high tower steel column disclosed in the present invention, each frame steel column includes N sections of hoisting sections, where N is a natural number greater than or equal to 1.

[0034] It should be noted that the tower steel balls are the frame steel balls.

[0035] The installation method includes the following steps:

[0036] S101 and N section lifting columns are lifted from bottom to top in sequence by crane and hand hoist.

[0037] For example, the hand chain hoist can be a 15t hand chain hoist. The hand chain hoist can also be a hand chain hoist of a certain model and specification, as long as it can lift the hoisting column.

[0038] Among them, the S101 and N section hoisting columns are hoisted from bottom to top in sequence by a crane and a hand hoist, including:

[0039] S1011. Hang the first hoisting section on the wire rope, raise the crane hook, and after the first hoisting section is off the ground, rotate the rod to the installation position. S1012. When the hook is at a preset distance from the top surface of the installation position, align it with the bolt hole or tooling and lower it. After aligning it with the axis, put it in place and install the gasket and tighten the bolts.

[0040] The preset distance is in the range of 90mm-120mm. In this embodiment, the preset distance is 100mm.

[0041] Specifically, slowly lower the hook to about 100mm from the top surface of the installation position, align it with the bolt hole or tooling, align it with the pre-drawn axis and put it in place, then install the gasket and fastening bolts.

[0042] S1013. Use a crane and a hand hoist to lift the Lth section of the lifting column, where L is a natural number greater than or equal to 2.

[0043] It should be noted that before hoisting the first section of the hoisting column, the wire rope needs to be specially inspected, and the hand hoist should be manually fine-tuned to make the wire rope length reach the appropriate position. It can only be used after confirming that there are no installation hazards.

[0044] Among them, S1013, lifting the L-th section of the lifting column by using a crane and a hand hoist, includes:

[0045] S10131. Hang the Lth section of the hoisting column on the wire rope, and after the Lth section of the hoisting column is off the ground and reaches the predetermined height, rotate the rod to the docking position.

[0046] S10132. When the hook is dropped to the preset distance from the top surface of the installation position, align it with the door-shaped positioning card on the lower lifting section column and drop it down. After aligning it with the axis, put it in place and weld the door-shaped positioning card to the Lth section lifting section column.

[0047] Specifically, when the hook is slowly lowered to about 100mm from the top surface of the installation position, it is aligned with the door-shaped positioning card on the lower lifting section column and slowly lowered. After aligning with the axis drawn in advance, it is put into position. The welder welds the door-shaped positioning card to the L-section lifting section column and fixes it.

[0048] S10133. Weld the butt weld between the L-section hoisting column and the lower hoisting column. After welding, cut off the door-shaped positioning card and grind it clean.

[0049] S102. After the hoisting of the two adjacent hoisting sections is completed, the frame beams and inter-column supports are installed, and the verticality of the frame steel columns is measured and adjusted using two theodolites.

[0050] Among them, after the hoisting of the two adjacent hoisting sections of S102 is completed, the frame beams and column supports are installed, and the verticality of the frame steel columns is measured and adjusted using two theodolites, including:

[0051] S1021. Use a hanging cage as a temporary operating platform to install the frame beam and column supports on the frame steel columns. By using the hanging cage as a temporary operating platform, it is convenient for welding workers to move, reducing labor and improving work efficiency. At the same time, it ensures the safety of welding workers and improves the safety of the entire project.

[0052] Specifically, when installing the frame beam, use a level to measure the flatness of the frame beam and the column ends of the frame steel column, mark the installation position of the upper hoisting section column, and make a mark.

[0053] S1022. When hoisting the frame steel ball tail, two theodolites are set up at 90° crosswise to measure the verticality of the frame steel ball.

[0054] The verticality requirements of the two theodolites are achieved by detecting the deviation of the upper and lower axes of the cylinders of the two theodolites, adjusting the thickness of the base plates of the two theodolites, and tightening the anchor bolts.

[0055] Specifically, the verticality deviation is allowed to be 1‰, and the verticality deviation cannot exceed 30mm.

[0056] Among them, the verticality of the frame steel columns is measured in the morning; this setting avoids the temperature difference caused by the sun's radiation on the tower, ensures the accuracy of the measurement results, reduces the number of measurements, and improves work efficiency.

[0057] The present application provides a method for installing high-tower steel columns, wherein each frame steel column includes N sections of hoisting sections; the installation method includes the following steps: N sections of hoisting sections are hoisted in sequence from bottom to top by a crane and a hand winch; after the hoisting of two adjacent sections of hoisting sections is completed, the frame beams and inter-column supports are installed, and the verticality of the frame steel columns is measured and adjusted by two theodolites; by using two theodolites to measure the verticality of the frame steel balls, compared with the method of calculating by measuring the elevation and length of the steel components in the prior art, the measurement error is reduced and the installation accuracy is improved; at the same time, the measurement work and complex calculation process are reduced, the labor force is reduced, and thus the project cost is reduced.

[0058] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

[0059] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all embodiments. However, obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A method for installing a high tower steel column, characterized in that: Each frame steel column includes N sections of hoisting sections, where N is a natural number greater than or equal to 1; The installation method includes the following steps: The hoisting columns in Section N are hoisted from bottom to top in sequence by using a crane and a hand chain hoist; After the hoisting of the two adjacent hoisting sections is completed, the frame beams and the inter-column supports are installed, and the verticality of the frame steel columns is measured and adjusted using two theodolites.

2. The method for installing a high tower steel column according to claim 1, characterized in that: The N sections of the hoisting columns are hoisted in sequence from bottom to top by a crane and a hand chain hoist, including: Hang the first hoisting section column on the wire rope, lift the hook of the crane, and rotate the rod to the installation position after the first hoisting section column is off the ground; When the hook is dropped to the preset distance from the top surface of the installation position, align it with the bolt hole or the tooling and drop it down. After aligning it with the axis, install the gasket and fasten the bolts. The Lth hoisting section column is hoisted by cooperating with the crane and the hand hoist, wherein L is a natural number greater than or equal to 2.

3. The method for installing a high tower steel column according to claim 2, wherein: The method of lifting the Lth section of the lifting column by cooperating with the crane and the hand chain hoist includes: Hanging the Lth section of the hoisting column on the wire rope, and rotating the rod to the docking position after the Lth section of the hoisting column is off the ground and reaches a predetermined height; When the hook is dropped to a preset distance from the top surface of the installation position, the door-shaped positioning card on the lower hoisting section column is aligned and dropped, and after being aligned with the axis, the door-shaped positioning card is welded and fixed to the L-th section hoisting section column; Weld the butt weld between the L-section hoisting section column and the lower hoisting section column. After welding is completed, cut off the door-shaped positioning card and grind it clean.

4. The method for installing a high tower steel column according to claim 3, wherein: The preset distance ranges from 90 mm to 120 mm.

5. The method for installing a high tower steel column according to claim 1, wherein: After the hoisting of the two adjacent sections of the hoisting columns is completed, the frame beams and the inter-column supports are installed, and the verticality of the frame steel columns is measured and adjusted using two theodolites, including: Using a cage as a temporary operating platform, the frame beams and the inter-column supports are installed on the frame steel columns; When the frame steel ball is hoisted at the tail, two theodolites are set up at 90 degrees crosswise to measure the verticality of the frame steel ball.

6. The method for installing a high tower steel column according to claim 5, characterized in that: The verticality requirements of the two theodolites are achieved by detecting the deviation of the upper and lower axes of the cylinders of the two theodolites, adjusting the thickness of the base plates of the two theodolites, and tightening the anchor bolts.

7. The method for installing a high tower steel column according to claim 5, characterized in that: When installing the frame beam, use a level to measure the flatness of the frame beam and the column ends of the frame steel column, mark the installation position of the upper hoisting section column, and make a mark.

8. The method for installing a high tower steel column according to claim 6, wherein: The allowable deviation of verticality is 1‰, and the verticality deviation cannot exceed 30mm.

9. The method for installing a high tower steel column according to claim 1, wherein: The verticality of the frame steel columns was measured in the morning.

10. The method for installing a high tower steel column according to claim 1, wherein: The hand chain hoist adopts a 15t hand chain hoist.

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