Large super-thick-wall combined steel pipe tree-shaped column high-altitude assembling structure and assembling method

Abstract

The high-altitude assembling structure comprises a plurality of steel pipe column unit sections which are assembled in the vertical direction, each steel pipe column unit section is composed of four steel pipes which are annularly arranged at equal intervals, the diagonal steel pipes of each steel pipe column unit section are arranged to be of a structure with two long steel pipes and two short steel pipes, and the two long steel pipes and the two short steel pipes are arranged in parallel. The corresponding long steel pipes between the upper steel pipe column unit section and the lower steel pipe column unit section are directly welded, the corresponding short steel pipes between the upper steel pipe column unit section and the lower steel pipe column unit section are welded through inlaying section connecting pipes, and the inlaying section connecting pipes highly cover circular seams of the upper long steel pipes and the lower long steel pipes which are directly welded. In the construction process of the super high-rise large overweight combined steel pipe tree-shaped column, through a reasonable structure and reasonable construction procedure organization, on the premise that the overall construction safety and the steel structure construction quality in the construction process are guaranteed, the combined steel pipe tree-shaped column is disassembled and then combined and assembled through the inlaying welding technology, and the combined steel pipe tree-shaped column is formed. The construction measure cost is greatly reduced, the site construction safety is guaranteed, and the implementation effect is good.

Description

Technical Field

[0001] The invention belongs to the technical field of building engineering construction, and in particular provides a high-altitude assembly structure of a large-scale ultra-thick-walled combined steel pipe tree-shaped column and an assembly method. Background Art

[0002] In recent years, steel tree-like structures have been increasingly adopted in super-high-rise steel office buildings. Generally, tree-like structures are limited in height and the area covered by individual columns, often requiring high-altitude bulk assembly and unit hoisting, which offer good technical and economic benefits. However, for super-high-rise, large, and heavy tree-like structures, the heavy lifting weight and high precision required for installation require a rational decomposition of the structure. Summary of the Invention

[0003] The purpose of the present invention is to provide a large-scale ultra-thick-walled composite steel pipe tree-like column high-altitude assembly structure and assembly method to solve the defects of the existing ultra-high-rise large-scale ultra-thick-walled composite steel pipe tree-like column high-altitude assembly.

[0004] The present invention provides a large-scale ultra-thick-walled composite steel pipe tree-like column high-altitude assembly structure, comprising multiple sections of steel pipe column unit sections 1 assembled in a vertical direction, wherein the steel pipe column unit section 1 is composed of four equidistantly arranged steel pipes in a ring, and its diagonal steel pipes are arranged into a two-long and two-short structure, and the corresponding long steel pipes 11 between the upper and lower sections of the steel pipe column unit sections 1 are directly welded, and the corresponding short steel pipes 12 between the upper and lower sections of the steel pipe column unit sections 1 are welded through an inlay section connecting pipe 2, and the inlay section connecting pipe 2 highly covers the annular seam of the upper and lower sections of the directly welded long steel pipes 12.

[0005] Furthermore, the patching section connecting pipe 2 includes an inner semicircle 21, a stiffening plate 24 and an outer semicircle 27; an inner semicircle annular seam lining plate 22 and an inner semicircle annular seam groove 23 are welded above and below the outer surface of the inner semicircle 21; an outer semicircle annular seam lining plate 28 and an outer semicircle annular seam groove 29 are welded above and below the inner surface of the outer semicircle 27; corresponding stiffening plate vertical seam lining plates 25 are welded on both the inner and outer sides of the stiffening plate 24, and the stiffening plate 24 is welded to the inner semicircle 21 and the outer semicircle 27 through the stiffening plate vertical seam lining plates 25.

[0006] The present invention also provides a high-altitude assembly method for large-scale ultra-thick-walled composite steel pipe tree-like columns. The assembly method adopts a composite steel pipe patching welding construction process to install the composite steel pipe tree-like columns from bottom to top, directly weld the corresponding long steel pipes 11 between the upper and lower steel pipe column unit sections 1, and weld the corresponding short steel pipes 12 between the upper and lower steel pipe column unit sections 1 through a patching section connecting pipe 2. The patching section connecting pipe 2 highly covers the circumferential seams of the directly welded upper and lower long steel pipes 12. The patching section connecting pipe 2 includes an inner semicircle 21 and an outer semicircle 27, and an inner and outer semicircular circumferential seam bevels and longitudinal seam bevels are provided. The bevels are all fully penetrated by the pad, and the bevels are selected to have a large gap and a small bevel.

[0007] Furthermore, the welding steps of the patching section connecting pipe 2 are as follows: Step 1: Assemble the inner semicircle 21 and the inner semicircular annular seam lining plate 22, weld the inner semicircular annular seam groove 23, and the inner semicircular annular seam groove 23 faces the inner side of the patching section connecting pipe 2. After the welding is completed and left to stand for 24 hours, ultrasonically test the quality of the internal weld. Step 2: Assemble the stiffening plate 24 and the stiffening plate vertical seam lining 25 between the inner semicircle 21 and the outer semicircle 27, but do not weld the stiffening plate inner vertical weld 26 yet; Step 3: Assemble the outer semicircle 27 and the outer semicircular annular seam lining plate 28, weld the outer semicircular annular seam groove 29, and then weld the stiffening plate inner vertical weld 26 and the stiffening plate outer vertical weld 210.

[0008] The present invention has the following beneficial effects: During the construction of super-high-rise, large-scale, and super-heavy composite steel pipe tree-like columns, the present invention adopts a method of decomposing the composite steel pipe tree-like columns and then assembling them using patching and welding technology through reasonable structure and reasonable construction process organization, while ensuring the overall construction safety and steel structure construction quality of the construction process. This greatly reduces the cost of construction measures, ensures on-site construction safety, and has a good implementation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A perspective view of a steel pipe column unit section in the present invention; Figure 3 This is a front view of the steel pipe column unit section in the present invention; Figure 4 This is a three-dimensional diagram of the assembly and positioning of the upper and lower sections of the present invention; Figure 5 This is the main view of the upper and lower sections of the present invention; Figure 6 This is a schematic diagram of the structure of the patching section connecting pipe in the present invention; Figure 7This is a cross-sectional view of the connecting pipe of the patching section in the present invention; Figure 8 This is a schematic diagram of the annular welding of a long steel pipe in the present invention; Figure 9 Schematic diagram of the inner semicircular welding of the short steel pipe patching section in the present invention; Figure 10 This is a schematic diagram of the assembly of the stiffening plate of the short steel pipe embedded section of the present invention; Figure 11 Schematic diagram of the outer semicircular welding of the short steel pipe patching section in the present invention; In the figure: 1. Steel pipe column unit section; 11. Long steel pipe; 12. Short steel pipe; 2. Connecting pipe of patching section; 21. Inner semicircle; 22. Inner semicircle annular seam lining; 23. Inner semicircle annular seam groove; 24. Stiffener; 25. Stiffener vertical seam lining; 26. Inner vertical weld of stiffener; 27. Outer semicircle; 28. Outer semicircle annular seam lining; 29. ​​Outer semicircle annular seam groove; 210. Outer vertical weld of stiffener; 3. Temporary fixing ring. DETAILED DESCRIPTION

[0010] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0011] like Figures 1 to 11 As shown, a large-scale ultra-thick-walled composite steel pipe tree-like column high-altitude assembly structure includes multiple sections of steel pipe column unit sections 1 assembled in the vertical direction. The steel pipe column unit section 1 is composed of four steel pipes arranged in an equidistant ring. The diagonal steel pipes are arranged into a two-long and two-short structure. The corresponding long steel pipes 11 between the upper and lower sections of the steel pipe column unit sections 1 are directly welded, and the corresponding short steel pipes 12 between the upper and lower sections of the steel pipe column unit sections 1 are welded through an inlay section connecting pipe 2. The inlay section connecting pipe 2 highly covers the annular seam of the upper and lower sections of the directly welded long steel pipes 12.

[0012] The patching section connecting pipe 2 includes an inner semicircle 21, a stiffening plate 24 and an outer semicircle 27; an inner semicircle annular seam lining plate 22 and an inner semicircle annular seam groove 23 are welded above and below the outer surface of the inner semicircle 21; an outer semicircle annular seam lining plate 28 and an outer semicircle annular seam groove 29 are welded above and below the inner surface of the outer semicircle 27; corresponding stiffening plate vertical seam lining plates 25 are welded on both the inner and outer sides of the stiffening plate 24, and the stiffening plate 24 is welded to the inner semicircle 21 and the outer semicircle 27 through the stiffening plate vertical seam lining plates 25.

[0013] A high-altitude assembly method for large-scale ultra-thick-walled composite steel pipe tree-like columns. The assembly method adopts a composite steel pipe patching welding construction process, installs the composite steel pipe tree-like columns from bottom to top, directly welds the corresponding long steel pipes 11 between the upper and lower steel pipe column unit sections 1, and welds the corresponding short steel pipes 12 between the upper and lower steel pipe column unit sections 1 through a patching section connecting pipe 2. The patching section connecting pipe 2 highly covers the circumferential seams of the directly welded upper and lower long steel pipes 12 to provide space for welding the long steel pipes. The patching section connecting pipe 2 includes an inner semicircle 21 and an outer semicircle 27, and is provided with circumferential seam grooves and longitudinal seam grooves of the inner and outer semicircles. The grooves are all fully penetrated by pads, and the grooves are selected to have large gaps and small grooves to reduce stress.

[0014] The welding steps of the patching section connecting pipe 2 are as follows: Step 1: Assemble the inner semicircle 21 and the inner semicircular annular seam lining plate 22, weld the inner semicircular annular seam groove 23, and the inner semicircular annular seam groove 23 faces the inner side of the patching section connecting pipe 2. After the welding is completed and left to stand for 24 hours, ultrasonically test the quality of the internal weld. Step 2: Assemble the stiffening plate 24 and the stiffening plate vertical seam lining 25 between the inner semicircle 21 and the outer semicircle 27, but do not weld the stiffening plate inner vertical weld 26 yet; Step 3: Assemble the outer semicircle 27 and the outer semicircular annular seam lining plate 28, weld the outer semicircular annular seam groove 29, and then weld the stiffening plate inner vertical weld 26 and the stiffening plate outer vertical weld 210.

[0015] The present invention adopts a combined steel pipe patching welding construction process, which solves the problem of insufficient steel pipe gaps during the combined steel pipe welding process, provides a relatively open working environment and welding space for high-altitude welders, ensures the operability of ultra-thick-wall combined steel pipe welding operations, and ensures the assembly quality of tree-like columns.

[0016] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A large-scale ultra-thick-walled composite steel pipe tree-like column high-altitude assembly structure, characterized in that: The invention comprises a plurality of steel pipe column unit sections (1) assembled in a vertical direction, wherein the steel pipe column unit section (1) is composed of four steel pipes arranged in an equidistant circular pattern, wherein the diagonal steel pipes are arranged in a two-long and two-short structure, wherein the corresponding long steel pipes (11) between the upper and lower sections of the steel pipe column unit sections (1) are directly welded, and the corresponding short steel pipes (12) between the upper and lower sections of the steel pipe column unit sections (1) are welded via an inlay section connecting pipe (2), wherein the inlay section connecting pipe (2) highly covers the annular seam of the directly welded upper and lower sections of the long steel pipes (12).

2. A large-scale ultra-thick-walled composite steel pipe tree-like column high-altitude assembly structure according to claim 1, characterized in that: The patching section connecting pipe (2) comprises an inner semicircle (21), a stiffening plate (24) and an outer semicircle (27); an inner semicircle annular seam lining plate (22) and an inner semicircle annular seam groove (23) are welded above and below the outer surface of the inner semicircle (21); an outer semicircle annular seam lining plate (28) and an outer semicircle annular seam groove (29) are welded above and below the inner surface of the outer semicircle (27); corresponding stiffening plate vertical seam lining plates (25) are welded to both inner and outer sides of the stiffening plate (24), and the stiffening plate (24) is welded to the inner semicircle (21) and the outer semicircle (27) through the stiffening plate vertical seam lining plates (25).

3. A method for assembling a large-scale ultra-thick-walled composite steel pipe tree-like column high-altitude assembly structure according to claim 1, characterized in that: The assembly method adopts a combined steel pipe patching welding construction process, installs the combined steel pipe tree-like column from bottom to top, directly welds the corresponding long steel pipes (11) between the upper and lower steel pipe column unit sections (1), and welds the corresponding short steel pipes (12) between the upper and lower steel pipe column unit sections (1) through a patching section connecting pipe (2), wherein the patching section connecting pipe (2) highly covers the circumferential seam of the directly welded upper and lower long steel pipes (12), and the patching section connecting pipe (2) includes an inner semicircle (21) and an outer semicircle (27), and sets the circumferential seam groove and longitudinal seam groove of the inner and outer semicircles, and the grooves are all welded with full penetration of the liner, and the grooves are selected to have a large gap and a small groove.

4. The method for assembling a large-scale ultra-thick-walled composite steel pipe tree-like column high-altitude assembly structure according to claim 3 is characterized in that: The welding steps of the patching section connecting pipe (2) are as follows: Step 1: Assemble the inner semicircle (21) and the inner semicircular annular seam lining (22), weld the inner semicircular annular seam groove (23), wherein the inner semicircular annular seam groove (23) faces the inner side of the patching section connecting pipe (2), and after the welding is completed and left to stand for 24 hours, ultrasonically inspect the quality of the internal weld; Step 2: Assemble the stiffening plate (24) and the stiffening plate vertical seam lining (25) between the inner semicircle (21) and the outer semicircle (27), and do not weld the inner vertical weld (26) of the stiffening plate for the time being; Step 3: Assemble the outer semicircle (27) and the outer semicircular annular seam lining (28), weld the outer semicircular annular seam groove (29), and then weld the inner vertical weld (26) of the stiffening plate and the outer vertical weld (210) of the stiffening plate.

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