Steel column butt joint elevation adjustment positioning method

Abstract

The application discloses a kind of steel column butt joint interface elevation adjustment positioning method, it is related to steel structure construction technical field.The method includes: prefabricated fixture, fixture is formed by U-shaped upper clamp plate and lower clamp plate by pin shaft hinged;Upper steel column is hoisted to the upper of lower steel column, so that upper and lower hoisting lug plate is aligned;Custom fixture insertion end is inserted between upper and lower hoisting lug plate;Separating type hydraulic jack is placed in the bearing space of fixture adjustment;Control jack jacking, so that fixture insertion end opening and drive upper steel column to rise, synchronous monitoring elevation and fine adjustment jacking amount to accuracy requirement;Keep jacking support state and weld;After weld cooling, remove fixture and jack.It is realized that steel column butt joint interface elevation is accurately, controllable adjustment by custom fixture and separating type hydraulic jack cooperation, it is easy to operate, high efficiency, avoid the problem that traditional gasket method is not close, stress is uneven, applicable to high-altitude butt joint construction of high-rise, large-span steel structure.

Description

Technical Field

[0001] This invention relates to the field of steel structure construction technology, specifically a method for adjusting and positioning the elevation at the interface of a steel column. Background Technology

[0002] In the construction of high-rise, large-span steel structure buildings, steel columns are usually fabricated in sections and installed on-site due to limitations in transportation and hoisting capabilities. The connection quality of the joints between high-altitude steel columns directly determines the overall structural installation accuracy, construction safety, and efficiency. Controlling the elevation deviation of steel column joints is a core aspect of ensuring the flatness of the superstructure, the load transfer path, and the overall project quality.

[0003] The existing method for adjusting the elevation of steel column joints mainly uses shim sets. However, this method is limited by the space available for high-altitude operations, and the process of selecting and testing shims is cumbersome and inefficient. Furthermore, multiple layers of shims can lead to loose fits and uneven stress, affecting the stability of the joint. Therefore, a new method for adjusting and positioning the elevation of steel column joints is proposed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a method for adjusting and positioning the elevation at the interface of a steel column.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] A method for adjusting and positioning the elevation at the interface of a steel column includes the following steps:

[0007] S1. Pre-made clamps; the custom clamps include a U-shaped upper clamp plate and a lower clamp plate, with the U-shaped openings of the upper clamp plate and the lower clamp plate facing each other to form a clamp adjustment and bearing space; one of the opposite ends of the upper clamp plate and the lower clamp plate are hinged by a pin, and the other opposite ends abut against each other and extend to the side away from the hinge end to form a clamp insertion end.

[0008] S2. Hoist the upper steel column to the position above the lower steel column, aligning the hoisting lugs at the bottom of the upper steel column with the hoisting lugs at the top of the lower steel column;

[0009] S3. Insert the plug end of the customized clamp between the two upper and lower opposite lifting ear plates, so that the plug end of the clamp fits tightly with the lifting ear plate;

[0010] S4. Place the split hydraulic jack in the adjustment and bearing space of the customized clamp, so that the lifting end of the split hydraulic jack abuts against the upper clamping plate and the supporting end abuts against the lower clamping plate.

[0011] S5. Control the split hydraulic jack to perform the lifting action, so that the customized clamp insertion end gradually opens, thereby driving the upper steel column to rise slowly. Simultaneously monitor the steel column interface elevation data in real time, and finely adjust the lifting amount of the split hydraulic jack according to the monitoring results until the steel column interface elevation reaches the preset installation accuracy requirements.

[0012] S6. After the elevation is adjusted to the correct position, maintain the support of the split hydraulic jacks and weld and fix the joint of the upper and lower steel columns.

[0013] S7. After welding is completed, wait for the weld to cool to room temperature, remove the separate hydraulic jack and the customized clamp, check the steel column connection position, and after confirming that the welding quality and elevation accuracy meet the requirements, proceed to the subsequent steel column connection and fixing process.

[0014] Furthermore, the custom-made clamps are made of high-strength steel to prevent deformation during the lifting process.

[0015] Furthermore, the outer side of the insertion end of the customized clamp is provided with anti-slip texture; effectively preventing slippage between the insertion end of the customized clamp and the lifting ear plate.

[0016] The present invention, which adopts the above technical solution, has the following prominent features compared with the prior art:

[0017] This invention achieves precise and controllable adjustment of the steel column alignment elevation through a customized clamp and a separate hydraulic jack. The customized clamp features a U-shaped split structure and a pin-hinge design. After the insertion end is inserted into the upper and lower lifting lugs, the jack can smoothly lift the upper steel column, making operation simple, responsive, and significantly improving docking efficiency. Simultaneously, the clamp is made of high-strength steel and features anti-slip textures to effectively prevent deformation and slippage during lifting, ensuring construction safety. The lifting amount can be monitored and fine-tuned in real time during elevation adjustment to ensure the alignment accuracy meets installation requirements, avoiding the problems of loose fit and uneven stress associated with traditional shim methods. After welding is completed and the weld has cooled, the clamp and jack can be removed without affecting the structural load. This method improves both the accuracy and efficiency of elevation adjustment and enhances the safety and reliability of the construction process, making it suitable for high-altitude steel column docking in high-rise and large-span steel structure projects. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of the customized fixture in an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the construction state structure according to an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached drawings: 1. Upper steel column; 2. Lower steel column; 3. Customized clamp; 4. Separate hydraulic jack; 31. Upper clamping plate; 32. Lower clamping plate; 33. Pin shaft; 34. Insertion end. Detailed Implementation

[0021] The present invention will be further illustrated below with reference to specific embodiments. The purpose of this illustration is solely to provide a better understanding of the invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0022] like Figures 1 to 2 As shown in the figure, this embodiment provides a method for adjusting and positioning the elevation at the interface of a steel column, including the following steps:

[0023] S1. Pre-made clamp 3; The pre-made clamp 3 includes a U-shaped upper clamping plate 31 and a lower clamping plate 32. The U-shaped openings of the upper clamping plate 31 and the lower clamping plate 32 are opposite to each other to form a clamp adjustment and bearing space; One of the opposite ends of the upper clamping plate 31 and the lower clamping plate 32 are hinged by a pin 33, and the other opposite ends abut against each other and extend to the side away from the hinge end to form a clamp insertion end 34.

[0024] S2. Hoist the upper steel column 1 to the position above the lower steel column 2, so that the hoisting lug at the bottom of the upper steel column 1 is aligned with the hoisting lug at the top of the lower steel column 2.

[0025] S3. Insert the insertion end 34 of the customized clamp 3 between the two upper and lower opposite lifting ear plates, so that the insertion end 34 of the clamp is tightly fitted with the lifting ear plate;

[0026] S4. Place the split hydraulic jack 4 in the adjustment and bearing space of the customized clamp 3, so that the lifting end of the split hydraulic jack 4 abuts against the upper clamp 31 and the supporting end abuts against the lower clamp 32.

[0027] S5. Control the split hydraulic jack 4 to perform the lifting action, so that the plug end 34 of the customized clamp 3 gradually opens, thereby driving the upper steel column 1 to rise slowly. Simultaneously monitor the steel column interface elevation data in real time, and finely adjust the lifting amount of the split hydraulic jack 4 according to the monitoring results until the steel column interface elevation reaches the preset installation accuracy requirements.

[0028] S6. After the elevation is adjusted to the correct position, keep the split hydraulic jack in a 4-support state and weld and fix the joint position of the upper and lower steel columns.

[0029] S7. After welding is completed, wait for the weld to cool to room temperature, remove the separate hydraulic jack 4 and the customized clamp 3, check the steel column docking position, and after confirming that the welding quality and elevation accuracy meet the requirements, proceed to the subsequent steel column docking and fixing process.

[0030] Customized clamp 3 is made of high-strength steel to prevent deformation during the lifting process.

[0031] The outer side of the insertion end 34 of the custom clamp 3 is provided with anti-slip texture; effectively preventing the insertion end 34 of the custom clamp 3 from slipping off from the lifting ear plate.

[0032] This invention achieves precise and controllable adjustment of the steel column alignment elevation through a customized clamp and a separate hydraulic jack. The customized clamp features a U-shaped split structure and a pin-hinge design. After the insertion end is inserted into the upper and lower lifting lugs, the jack can smoothly lift the upper steel column, making operation simple, responsive, and significantly improving docking efficiency. Simultaneously, the clamp is made of high-strength steel and features anti-slip textures to effectively prevent deformation and slippage during lifting, ensuring construction safety. The lifting amount can be monitored and fine-tuned in real time during elevation adjustment to ensure the alignment accuracy meets installation requirements, avoiding the problems of loose fit and uneven stress associated with traditional shim methods. After welding is completed and the weld has cooled, the clamp and jack can be removed without affecting the structural load. This method improves both the accuracy and efficiency of elevation adjustment and enhances the safety and reliability of the construction process, making it suitable for high-altitude steel column docking in high-rise and large-span steel structure projects.

[0033] The above description is merely a preferred embodiment of the present invention and does not limit the scope of the present invention. All equivalent changes made based on the description and drawings of the present invention are included within the scope of the present invention.

Claims

1. A method for adjusting and positioning the elevation at the interface of a steel column, characterized in that, Includes the following steps: S1. Pre-made clamps; the custom clamps include a U-shaped upper clamp plate and a lower clamp plate, with the U-shaped openings of the upper clamp plate and the lower clamp plate facing each other to form a clamp adjustment and bearing space; one of the opposite ends of the upper clamp plate and the lower clamp plate are hinged by a pin, and the other opposite ends abut against each other and extend to the side away from the hinge end to form a clamp insertion end. S2. Hoist the upper steel column to the position above the lower steel column, aligning the hoisting lugs at the bottom of the upper steel column with the hoisting lugs at the top of the lower steel column; S3. Insert the plug end of the customized clamp between the two upper and lower opposite lifting ear plates, so that the plug end of the clamp fits tightly with the lifting ear plate; S4. Place the split hydraulic jack in the adjustment and bearing space of the customized clamp, so that the lifting end of the split hydraulic jack abuts against the upper clamping plate and the supporting end abuts against the lower clamping plate. S5. Control the split hydraulic jack to perform the lifting action, so that the customized clamp insertion end gradually opens, thereby driving the upper steel column to rise slowly. Simultaneously monitor the steel column interface elevation data in real time, and finely adjust the lifting amount of the split hydraulic jack according to the monitoring results until the steel column interface elevation reaches the preset installation accuracy requirements. S6. After the elevation is adjusted to the correct position, maintain the support of the split hydraulic jacks and weld and fix the joint of the upper and lower steel columns. S7. After welding is completed, wait for the weld to cool to room temperature, remove the separate hydraulic jack and the customized clamp, check the steel column connection position, and after confirming that the welding quality and elevation accuracy meet the requirements, proceed to the subsequent steel column connection and fixing process.

2. The method for adjusting and positioning the elevation at the interface of the steel column according to claim 1, characterized in that: The custom-made clamps are made of high-strength steel.

3. The method for adjusting and positioning the elevation at the interface of the steel column according to claim 1, characterized in that: The outer side of the plug end of the customized card is provided with anti-slip texture.

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