Steel structure square cylinder butt joint fixing device

Abstract

A steel structure square cylinder butt joint fixing device is characterized in that a square ring lining plate is arranged on the inner side face of an upper end opening of a base cylinder, the square ring lining plate protrudes out of the upper end opening of the base cylinder, a chamfer is arranged on the outer edge portion of the lower end of an upper cylinder, and a butt joint plane is formed between the inner edge of the chamfer and the inner edge of the lower end opening of the upper cylinder; the lower end of the upper column body is sleeved on the square ring lining plate in a matching manner, and the butt joint plane corresponds to the port surface of the upper column body; a lower positioning plate is arranged in the middle of the outer side face of the base column body in the length direction, and an upper positioning plate is arranged in the middle of the outer side face of the upper column body in the length direction. The square ring lining plate of the device plays a guiding and limiting role between the upper column body and the base column body, rapid and accurate butt joint of the upper column body and the base column body is facilitated, the chamfer and the square ring boss form a gap with the cross section in the shape of a right trapezoid, more welding materials can be welded into the gap with the irregular cross section, better fusion of the welding materials can be promoted, and the welding quality is improved. And the connection firmness and the butt joint construction efficiency of the upper column body and the base column body are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of steel structure building especially relates to a steel structure square cylinder column butt joint fixing device. BACKGROUND

[0002] The construction process of the steel structure square cylinder column mainly consists of column prefabrication, column hoisting, welding and finishing. The column prefabrication is machining and manufacturing in the factory according to the design requirements. In the prefabrication process, the steel plate needs to be cut, punched and bent to obtain a cylindrical column that meets the structural requirements. The column hoisting is to install the prefabricated cylindrical column on the column base through hoisting equipment. During the installation process, the connection between the cylindrical column and the column base needs to be ensured to be firm to ensure the stability of the structure. The welding and finishing are performed after the installation of the cylindrical column. According to the design requirements, the connecting port needs to be welded.

[0003] In the current welding and finishing process, the surface of the cylindrical column and the column base is basically aligned after butt joint, the gap between them is small, and the size of the weld formed after welding is also small, which is not conducive to improving the firmness of the connection between the two. In addition, it is necessary to set up upper and lower butt joint plates for welding and fixing first, temporarily maintaining the stability of the cylindrical column and the column base, so that the column and the column base can be welded. After temporary fixation by welding, the two need to be cut and separated, which is a relatively troublesome operation process and requires high technical experience of construction personnel, which is not conducive to ensuring the construction quality. SUMMARY

[0004] To solve the above problems, the utility model provides a steel structure square cylinder column butt joint fixing device.

[0005] The technical scheme of the utility model is as follows: a steel structure square cylinder column butt joint fixing device, which comprises a base column body and an upper column body with the same cross-sectional size. A square ring inner lining plate is arranged on the inner side of the upper end of the base column body. The square ring inner lining plate is welded and fixed on the inner side of the base column body. The square ring inner lining plate protrudes from the upper end of the base column body to form a sleeve structure. The outer edge of the lower end of the upper column body is chamfered. The inner edge of the chamfer and the inner edge of the lower end of the upper column body form a butt joint plane. The lower end of the upper column body is matched and sleeved on the square ring inner lining plate. The protruding size of the square ring inner lining plate is determined according to the stable state of the upper column body after sleeving. The butt joint plane corresponds to the surface of the port of the upper column body. A lower positioning plate is arranged on the outer side of the base column body along the length direction. The lower positioning plate is perpendicular to the outer side of the base column body. An upper positioning plate is arranged on the outer side of the upper column body along the length direction. The upper positioning plate is perpendicular to the outer side of the base column body. The corresponding upper positioning plate and lower positioning plate are fixed and connected by a clamping plate assembly.

[0006] Preferably, the upper end port inner edge part of the base column body is provided with a square ring boss, the butt joint plane of the upper column body lower end port is supported on the surface of the square ring boss, the surface size of the square ring boss is same with the size of the butt joint plane, and the gap between the base column body and the upper column body is in the shape of a right trapezoid in cross section.

[0007] Preferably, the clamping plate assembly comprises a connecting plate, an upper through hole provided on the lower positioning plate and a lower through hole provided on the lower positioning plate, the connecting plate is a rectangular plate, the connecting plate is provided with connecting holes corresponding to the upper through hole and the lower through hole, the connecting holes are same in size with the upper and lower through holes, bolts are installed between the corresponding connecting holes and the upper and lower through holes.

[0008] Preferably, the connecting plate is provided with two connecting plates, and the two connecting plates are clamped between the two side surfaces of the lower positioning plate and the upper positioning plate.

[0009] Preferably, the upper positioning plate is provided with an upper notch at the inner edge corner, the lower positioning plate is provided with a lower notch at the inner edge corner, the upper notch and the lower notch are same in size, the upper notch and the lower notch are butt jointed to form an arc-shaped notch, and the connecting plate is provided with an arc-shaped notch at the middle part.

[0010] Preferably, the upper column body is provided with an upper rib plate at the lower end port, the upper rib plate and the end surface of the upper column body are arranged in parallel to each other, and a distance is provided between the upper rib plate and the lower end port of the upper column body.

[0011] Preferably, the base column body is provided with a lower rib plate at the upper end port, the lower rib plate and the end surface of the base column body are arranged in parallel to each other, and the lower rib plate is connected between the bottom surface of the square ring inner lining plate and the inner side surface of the base column body.

[0012] The beneficial technical effects of the utility model are:

[0013] (1) The square ring inner lining plate of the device produces guiding and limiting effects between the upper column body and the base column body, which is beneficial to the quick and accurate butt joint of the two, and the chamfer and the square ring boss form a gap in the shape of a right trapezoid in cross section, the irregular cross section gap can weld more welding materials and promote better fusion, and the firmness of the connection of the upper column body and the base column body and the butt joint construction efficiency are effectively improved.

[0014] (2) The device fixes and connects the upper and lower positioning plates by the bolt fastening connecting plate mode, the upper and lower positioning plates are automatically separated after the welding is completed, the two do not need to be cut apart in the later period, the construction operation is relatively convenient, and the arc-shaped notch provided between the upper and lower positioning plates can avoid the welding gap and avoid the phenomenon that the welding is not in place. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1is the three-dimensional structure schematic view of the utility model;

[0016] Figure 2 is the front view structure schematic view of the utility model;

[0017] Figure 3 is Figure 2 A-A towards the sectional view structure schematic view of the utility model;

[0018] Figure 4 is Figure 3 B-B towards the sectional view structure schematic view of the utility model;

[0019] Figure 5 is the three-dimensional structure schematic view of the base cylinder;

[0020] Figure 6 is the three-dimensional structure schematic view of the upper cylinder;

[0021] Figure 7 is the three-dimensional structure schematic view of the clamping plate assembly.

[0022] In the drawing, 1. base cylinder, 11. square ring inner lining plate, 12. square ring boss, 13. lower rib plate, 2. upper cylinder, 21. chamfer, 22. butt joint plane, 23. upper rib plate, 3. upper positioning plate, 31. upper notch, 32. upper through hole, 4. lower positioning plate, 41. lower notch, 42. lower through hole, 5. connecting plate, 51. arc-shaped notch, 6. bolt, 7. gap with right-angled trapezoidal shape in cross section. DETAILED DESCRIPTION

[0023] Embodiment one, refer to the attached Figures 1-6 A steel structure square cylinder butt joint fixing device, including the base cylinder 1 and the upper cylinder 2 of the same cross-sectional dimension, the upper end port inside surface of base cylinder is equipped with square ring inner lining plate 11, square ring inner lining plate projects the upper end port of base cylinder 1, the outer edge of the lower end of upper cylinder 2 is equipped with chamfer 21, and the inner edge of chamfer and the inner edge of the lower end port of upper cylinder 2 form butt joint plane 22, and chamfer is used to expand the contact gap between upper cylinder 2 and base cylinder 1, the lower end of upper cylinder 2 is matched and installed on square ring inner lining plate 11, and square ring inner lining plate 11 generates guiding and limiting effect between upper cylinder and base cylinder 1, which is beneficial to the quick and accurate butt joint of the two, and butt joint plane 22 corresponds with the port surface of upper cylinder 2;And the middle part of the outer side surface of base cylinder 1 is equipped with lower positioning plate 4 along the length direction thereof, and the middle part of the outer side surface of upper cylinder 2 is equipped with upper positioning plate 3 along the length direction thereof, and the corresponding upper positioning plate and lower positioning plate are equipped with clamping plate assembly and are fixedly connected, and after the butt joint of upper positioning plate 3 and lower positioning plate 4, base cylinder 1 and upper cylinder 2 are temporarily fixedly connected as a whole, and the connection is temporary connection, and it is not required to have too high connection strength.

[0024] The upper end of the base column 1 is provided with a square ring boss 12, and the butt joint plane 22 of the lower end of the upper column 2 is supported on the surface of the square ring boss 12, so that a gap 7 with a right-angled trapezoidal cross section is formed between the base column 1 and the upper column 2. The irregular cross section of the gap can weld more welding materials and promote better fusion, thereby effectively improving the connection firmness of the upper column 2 and the base column 1 and the butt joint construction efficiency.

[0025] The lower end of the upper column 2 is provided with an upper rib plate 23, and a distance is provided between the upper rib plate and the lower end of the upper column. The upper rib plate 23 is used to reinforce the lower end of the upper column 2 and improve the structural strength of the lower end.

[0026] The lower end of the base column 1 is provided with a lower rib plate 13, which is connected between the bottom surface of the square ring lining plate 11 and the inner side surface of the base column 1. The lower rib plate 13 is used to reinforce the lower end of the base column 1, improve the structural strength, and support the bottom surface of the square ring lining plate 11, thereby ensuring the support strength of the square ring lining plate 11.

[0027] In use, the base column 1 is first poured and fixed in the foundation, and then the upper column 2 is vertically lifted and slowly lowered to be sleeved on the square ring lining plate 11 of the base column 1. After the upper column 2 and the base column 1 are butt jointed, the upper positioning plate 3 and the lower positioning plate 4 are butt jointed and fixed by the clamping plate assembly, so that the base column 1 and the upper column 2 are temporarily fixed and connected as a whole. Then, welding is performed in the gap 7 with a right-angled trapezoidal cross section formed between the base column 1 and the upper column 2. The irregular cross section of the gap can weld more welding materials and promote better fusion, thereby effectively improving the connection firmness of the upper column 2 and the base column 1 and the butt joint construction efficiency.

[0028] In the second embodiment, the clamping plate assembly of the first embodiment is provided with a connecting plate 5, an upper through hole 32 provided on the lower positioning plate 4, and a lower through hole 42 provided on the lower positioning plate 4. Figures 1-4

[0029] ​In use, the clamping plate assembly of the embodiment is used to attach the connecting plate 5 between the upper positioning plate 3 and the lower positioning plate 4, and then sequentially install the bolts 6 between the through holes and the connecting holes, and then fix and connect the upper positioning plate 3 and the lower positioning plate 4 into an integrated body through the bolts 6 and the connecting plate 5, so as to realize the temporary fixing of the upper column body 2 and the base column body 1. After the temporary fixing and welding are completed, the bolts 6 and the connecting plate 5 can be removed, so that the upper and lower positioning plates 4 can be automatically separated, and there is no need to cut and separate the two positioning plates in the later stage, and the construction operation is relatively convenient.

[0030] The connecting plate 5 is provided as two plates, and the two connecting plates 5 are clamped between the two side surfaces of the lower positioning plate 4 and the upper positioning plate 3. The two connecting plates clamped on the two sides of the positioning plate have higher connection firmness. An upper notch 31 is arranged at the inner corner of the upper positioning plate 3, a lower notch 41 is arranged at the inner corner of the lower positioning plate 4, the upper notch 31 and the lower notch 41 are butted to form an arc-shaped notch 51, and the middle part of the connecting plate 5 is correspondingly provided with the arc-shaped notch 51. The arc-shaped notch 51 of the connecting plate 5 and the positioning plate is used to avoid the welding gap, so as to avoid the phenomenon that the connecting plate 5 and the positioning plate cover the welding gap at the corresponding position and cause the welding to be out of position.

Claims

1. A steel structure square tube column docking and fixing device, comprising a base column and an upper column with the same cross-sectional dimensions, characterized in that: The inner side of the upper end of the base column is provided with a square ring lining plate, the square ring lining plate protrudes from the upper end of the base column, the outer edge of the lower end of the upper column is chamfered, the inner edge of the chamfer and the inner edge of the lower end of the upper column form a butt joint plane, the lower end of the upper column is matched and sleeved on the square ring lining plate, the butt joint plane corresponds to the surface of the upper end of the upper column; and a lower positioning plate is arranged on the middle of the outer side of the base column along the length direction thereof, an upper positioning plate is arranged on the middle of the outer side of the upper column along the length direction thereof, and a clamping plate assembly is arranged between the corresponding upper positioning plate and the lower positioning plate to fixedly connect the two.

2. The butt joint fixing device for square steel tube columns according to claim 1, characterized in that: The inner edge of the upper end of the base column is provided with a square ring boss, the butt joint plane of the lower end of the upper column is supported on the surface of the square ring boss, and a gap with a straight trapezoidal cross section is formed between the base column and the upper column.

3. The butt joint fixing device for square steel tube columns according to claim 1, characterized in that: The clamping plate assembly comprises a connecting plate, an upper through hole arranged on the lower positioning plate and a lower through hole arranged on the lower positioning plate, the connecting plate is provided with connecting holes corresponding to the upper through hole and the lower through hole, and bolts are arranged between the corresponding connecting holes and the upper through hole and between the corresponding connecting holes and the lower through hole.

4. The butt joint fixing device for square steel tube columns according to claim 3, characterized in that: The connecting plate is provided with two connecting plates, and the two connecting plates are clamped between the two side surfaces of the lower positioning plate and the upper positioning plate.

5. The steel structure square tube column docking and fixing device according to claim 4, characterized in that: The inner edge corner of the upper positioning plate is provided with an upper notch, the inner edge corner of the lower positioning plate is provided with a lower notch, the upper notch and the lower notch are butt jointed to form an arc-shaped notch, and the middle of the connecting plate is provided with an arc-shaped notch corresponding to the arc-shaped notch.

6. The butt joint fixing device for square steel tube columns according to claim 1, characterized in that: The lower end of the upper column is provided with an upper rib plate, and a distance is arranged between the upper rib plate and the lower end of the upper column.

7. The butt joint fixing device for square steel tube columns according to claim 1, characterized in that: The upper end of the base column is provided with a lower rib plate, and the lower rib plate is connected between the bottom surface of the square ring lining plate and the inner side of the base column.

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