Aerial butt joint device for steel pipe stand column

Abstract

The utility model discloses a steel pipe stand column aerial butt-joint device and relates to transportation and hoisting. The steel pipe joint comprises an upper section steel pipe, a lower section steel pipe, a stiffening rib, a stiffening ring, a leveling steel plate, a guide steel plate and a lining pipe, wherein the stiffening ring is horizontally welded on the inner wall of the upper section steel pipe; the stiffening ribs are arranged on the stiffening rings; the lining pipe is vertically arranged on the inner walls of the upper-section steel pipe and the lower-section steel pipe; the upper portion of the guide steel plate makes contact with the inner wall of the upper section steel pipe, and the lower portion of the guide steel plate makes contact with the inner wall of the lower section steel pipe. The upper-section steel pipe and the lower-section steel pipe are welded and fixed. The guide steel plate and the lining pipe are welded in advance, and it is guaranteed that the upper-section steel pipe is smoothly inserted into the lower-section steel pipe and accurately aligned with the lower-section steel pipe; the stiffening ribs and the stiffening rings are welded in the upper section steel pipe in advance, the bearing capacity of the upper section steel pipe and the lower section steel pipe before welding and in the welding process is guaranteed, zero stress is guaranteed in the welding process of the upper section steel pipe and the lower section steel pipe, and the welding quality is improved.

Description

Technical Field

[0001] The utility model relates to transportation and hoisting, in particular to a steel pipe column aerial docking device which ensures zero stress during welding of upper and lower sections of steel pipes, effectively controls welding deformation and improves welding quality. Background Art

[0002] Due to factors such as transportation and hoisting weight, it is inevitable that steel pipe column segments will be butted in the air. The traditional butt-jointing method is butt-jointing after flange positioning or direct butt-jointing welding. Butt-jointing after flange positioning has a more complex structure and higher costs; in direct butt-jointing welding at high altitude, it is difficult to align the steel pipe cross section, the steel pipe has greater stress during welding, the welding deformation is larger, the welding quality is difficult to guarantee, and the structural safety is affected. Summary of the invention

[0003] The utility model aims to solve the existing problems of air docking of steel pipe columns, and provides an air docking device for steel pipe columns, which can ensure zero stress during welding of upper and lower sections of steel pipes, effectively control welding deformation and improve welding quality.

[0004] The utility model discloses an aerial docking device for steel pipe columns, which is characterized in that the docking device comprises an upper steel pipe, a lower steel pipe, a stiffening rib, a stiffening ring, a leveling steel plate, a guide steel plate and an inner lining pipe, wherein the stiffening ring is horizontally welded on the inner wall of the upper steel pipe; the stiffening rib is a circular ring with an isosceles trapezoidal cross section, which is arranged on the stiffening ring, and the bottom is welded to the upper surface of the stiffening ring, and the outer wall is welded to the inner wall of the upper steel pipe; the inner lining pipe is vertically arranged on the inner walls of the upper steel pipe and the lower steel pipe, and is located at the connection between the two; a groove is arranged in the middle of the outer wall of the guide steel plate, and the groove is wrapped around the outside of the inner lining pipe, the upper part of the outer wall of the guide steel plate contacts the inner wall of the upper steel pipe, and the lower part contacts the inner wall of the lower steel pipe, the leveling steel plate is in the shape of a circular ring, and is horizontally arranged between the top of the guide steel plate and the lower surface of the stiffening ring; the upper steel pipe is welded and fixed to the lower steel pipe.

[0005] The reinforcing ring is provided with four reserved holes at equal intervals to enhance the fluidity when pouring concrete into the steel pipe column.

[0006] The lower edge of the outer wall of the inner liner pipe is fixedly welded to the inner wall of the lower steel pipe.

[0007] There are four inner lining pipes which are welded at equal intervals on the inner wall of the connection between the upper steel pipe and the lower steel pipe. There are four guide steel plates which are fixed corresponding to the inner lining pipes one by one.

[0008] The inner lining pipe and the upper part of the guide steel plate are both provided with triangular notches to facilitate the insertion of the upper steel pipe.

[0009] The utility model relates to an aerial docking device for steel pipe columns, which ensures that the upper steel pipe is smoothly inserted into the lower steel pipe and accurately aligned with the lower steel pipe by pre-welding a guide steel plate and an inner lining pipe in the lower steel pipe; and pre-welding stiffening ribs and stiffening rings in the upper steel pipe ensures the bearing capacity of the upper and lower steel pipes before and during welding, ensures that zero stress is maintained during welding of the upper and lower steel pipes, effectively controls welding deformation, and improves welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model.

[0011] Figure 2 This is the cross-sectional view of the upper section of the steel pipe column.

[0012] Figure 3 This is a cross-sectional view of the column joint.

[0013] Figure 4 This is a large-scale drawing of the column joints.

[0014] Figure 5 This is a large-scale drawing of the guide plate.

[0015] Figure 6 This is the large-scale drawing of the stiffening ring.

[0016] Among them: upper steel pipe 1, lower steel pipe 2, stiffening ribs 3, stiffening rings 4, leveling steel plates 5, guide steel plates 6, reserved holes 7, and inner lining pipes 8. DETAILED DESCRIPTION

[0017] Embodiment 1: A device for connecting steel pipe columns in the air, comprising an upper steel pipe, a lower steel pipe, stiffening ribs, stiffening rings, a leveling steel plate, a guide steel plate and an inner lining pipe, wherein the stiffening ring is horizontally welded to the inner wall of the upper steel pipe; the stiffening rib is a circular ring with an isosceles trapezoidal cross-section, which is arranged on the stiffening ring, and the bottom is welded to the upper surface of the stiffening ring, and the outer wall is welded to the inner wall of the upper steel pipe; the inner lining pipe is vertically arranged on the inner walls of the upper steel pipe and the lower steel pipe, and is located at the connection between the two; a groove is arranged in the middle of the outer wall of the guide steel plate, and the groove is wrapped around the outside of the inner lining pipe, the upper part of the outer wall of the guide steel plate is in contact with the inner wall of the upper steel pipe, and the lower part is in contact with the inner wall of the lower steel pipe; the leveling steel plate is in the shape of a circular ring, and is horizontally arranged between the top of the guide steel plate and the lower surface of the stiffening ring; the upper steel pipe is welded and fixed to the lower steel pipe.

[0018] Four reserved holes are arranged at equal intervals on the stiffening ring to enhance the fluidity when pouring concrete into the steel pipe column.

[0019] The lower edge of the outer wall of the inner lining pipe is welded and fixed to the inner wall of the lower steel pipe. There are four inner lining pipes, which are welded at equal intervals on the inner wall of the connection between the upper steel pipe and the lower steel pipe. There are four guide steel plates, which are fixed one by one with the inner lining pipes.

[0020] The inner lining pipe and the upper part of the guide steel plate are both provided with triangular notches to facilitate the insertion of the upper section of the steel pipe.

[0021] The inner lining pipe and guide steel plate are pre-welded in the lower section of the steel pipe to ensure that the upper section of the steel pipe is smoothly inserted into the lower section of the steel pipe and accurately aligned with the lower section of the steel pipe; the stiffening ribs and stiffening rings are pre-welded in the upper section of the steel pipe to ensure the bearing capacity of the upper and lower sections of the steel pipe before and during welding, thereby ensuring that zero stress is maintained during the welding process of the upper and lower sections of the steel pipe and effectively controlling welding deformation.

Claims

1. A steel pipe column aerial docking device, characterized in that The docking device comprises an upper steel pipe, a lower steel pipe, a stiffening rib, a stiffening ring, a leveling steel plate, a guide steel plate and an inner lining pipe. The stiffening ring is horizontally welded to the inner wall of the upper steel pipe. The stiffening rib is a circular ring with an isosceles trapezoidal cross section, which is arranged on the stiffening ring, and the bottom is welded to the upper surface of the stiffening ring, and the outer wall is welded to the inner wall of the upper steel pipe. The inner lining pipe is vertically arranged on the inner walls of the upper steel pipe and the lower steel pipe, and is located at the connection between the two. A groove is arranged in the middle of the outer wall of the guide steel plate, and the groove is wrapped around the outside of the inner lining pipe. The upper part of the outer wall of the guide steel plate contacts the inner wall of the upper steel pipe, and the lower part contacts the inner wall of the lower steel pipe. The leveling steel plate is in the shape of a circular ring, and is horizontally arranged between the top of the guide steel plate and the lower surface of the stiffening ring. The upper steel pipe is welded and fixed to the lower steel pipe.

2. The steel pipe column aerial docking device according to claim 1, characterized in that The reinforcing ring is provided with four reserved holes at equal intervals to enhance the fluidity when pouring concrete into the steel pipe column.

3. The steel pipe column aerial docking device as claimed in claim 1, characterized in that The lower edge of the outer wall of the inner liner pipe is fixedly welded to the inner wall of the lower steel pipe.

4. The steel pipe column aerial docking device as claimed in claim 1, characterized in that There are four inner lining pipes which are welded at equal intervals on the inner wall of the connection between the upper steel pipe and the lower steel pipe. There are four guide steel plates which are fixed corresponding to the inner lining pipes one by one.

5. The steel pipe column aerial docking device as claimed in claim 1, characterized in that The inner lining pipe and the upper part of the guide steel plate are both provided with triangular notches.

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