Column-column splicing joint suitable for steel pipe column and machining device of column-column splicing joint

Abstract

The invention relates to the technical field of steel structure building engineering, and discloses a column-column splicing joint suitable for a steel pipe column, the column-column splicing joint comprises a first steel column and a second steel column, and further comprises a connecting piece and high-strength bolts, the top and the bottom of the connecting piece are each provided with a plurality of sets of first bolt holes, and nuts are arranged on the inner sides of the first bolt holes; the connecting pieces are arranged on the inner sides of the first steel column and the second steel column, second bolt holes matched with the first bolt holes are formed in the splicing ends of the first steel column and the second steel column correspondingly, and the high-strength bolts sequentially penetrate through the second bolt holes and the first bolt holes and then are connected with the nuts. Installation can be facilitated, the installation quality can be guaranteed, factory prefabrication, production and processing can be facilitated, the construction speed is effectively increased, and the construction effect is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure construction engineering, and particularly relates to a column-column splicing joint applicable to steel pipe columns and a processing device thereof. Background Art

[0002] For steel structures, firstly, steel structure buildings are green buildings, and steel structure construction is green construction, with high industrialization level, short construction period, less on-site labor, high labor productivity, and easy quality assurance; secondly, the construction occupies less land, can be dry-constructed, saves water, produces less noise and dust; thirdly, steel can be recycled, reducing construction waste and environmental pollution; the steel structure is a livelihood industry, with light self-weight, high strength, and good plasticity, enabling the continuous breakthrough of the height and span of buildings, providing more available space in buildings, and having excellent seismic performance.

[0003] Currently, during the construction of steel structures, there are mainly two ways to connect columns to columns. One is to achieve fixed connection through on-site full-penetration welding, and the other is to weld steel plates outside the steel columns, and the steel plates of the two steel columns are connected by bolts. As Figure 3 shown, vertical steel plates are provided on the outer sides of the connecting ends of the steel columns, and the two groups of vertical steel plates are connected by connecting steel plates. As Figure 4 shown, horizontal steel plates are welded to the connecting ends of the steel columns, and the horizontal steel plates are connected by bolts.

[0004] There are at least the following problems in the prior art: Firstly, the process of on-site full-penetration welding has many procedures, requires a lot of time and labor, is troublesome to operate, and the on-site welding quality cannot be guaranteed; secondly, welding steel plates outside the steel columns will increase the diameter of the joints, which is not only unsightly but also easily collided by other objects. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention develops a column-column splicing joint applicable to steel pipe columns. The present invention can not only facilitate installation, ensure the installation quality, but also facilitate factory prefabrication and production processing, effectively improving the construction speed and construction effect.

[0006] The technical solution for the present invention to solve the technical problems is as follows: On the one hand, the present invention provides a column-column splicing joint applicable to steel pipe columns, including a first steel column and a second steel column, further including a connecting piece and high-strength bolts. A plurality of groups of first bolt holes are provided at the top and bottom of the connecting piece, nuts are provided inside the first bolt holes, the connecting piece is arranged inside the first steel column and the second steel column, second bolt holes matching the first bolt holes are provided at the splicing ends of the first steel column and the second steel column, and the high-strength bolts sequentially pass through the second bolt holes and the first bolt holes and then are connected with the nuts.

[0007] As an optimization, the first steel column is a square steel pipe column or a rectangular steel pipe column, the cross-section of the second steel column is exactly the same as that of the first steel column, and the top of the first steel column abuts against the bottom of the second steel column. This can enable the first steel column to stably support the second steel column.

[0008] As an optimization, the connecting piece is an integrally formed steel pipe column. The outer side wall of the connecting piece is closely attached to the inner side walls of the first steel column and the second steel column, and several groups of first bolt holes are provided on the four side walls of the connecting piece. The integrally formed steel pipe column can be conveniently inserted into the first steel column as a whole for installation, improving the on-site installation efficiency.

[0009] As an optimization, the connecting piece includes four groups of steel plates. The outer side walls of the four groups of steel plates are respectively closely attached to the four inner side walls of the first steel column and the second steel column, and several groups of first bolt holes are provided at the top and bottom of the four groups of steel plates. By setting that the connecting piece includes four groups of steel plates, it is convenient to weld nuts to the inner sides of the steel plates, facilitating factory processing.

[0010] As an optimization, the wall thickness of the connecting piece is greater than the wall thickness of the first steel column. This can improve the strength of the joint.

[0011] On the other hand, the present invention provides a processing device for the column-column splicing joint applicable to steel pipe columns, which is used for the column-column splicing joint applicable to steel pipe columns, and includes a bottom plate. The four sides of the bottom plate are matched with the inner side walls of the connecting piece. Extension plates are vertically provided on both sides of the bottom plate, a limiting plate is horizontally provided at the top of the extension plates, and a nut positioning device is provided on the top of the bottom plate.

[0012] As an optimization, the nut positioning device includes a base, a push rod, a mounting plate and a pull ring. The base is arranged on the bottom plate. One end of the push rod is connected to the pull ring, and the other end of the push rod passes through the base and is connected to the mounting plate. A retaining ring is provided on the push rod between the base and the mounting plate, and a spring is sleeved on the push rod between the retaining ring and the base. Notches matched with the nuts are provided on the four sides of the bottom plate. By setting the base, the push rod can be installed, facilitating the axial sliding of the push rod and avoiding the inclination of the push rod; by setting the push rod, the mounting plate can be driven to move, and the two push rods can prevent the mounting plate from rotating; by setting the mounting plate, the nut can be fixed and pressed against the inner side wall of the connecting piece; by setting the pull ring, it is convenient for the staff to pull the push rod; by setting the spring and the retaining ring, it can be reset when the staff releases the pull ring, pushing the push rod to push the mounting plate towards the inner side wall of the connecting piece, thereby pressing the nut against the inner side wall of the connecting piece; by setting the notches, after welding the nut and the connecting piece, it is convenient for the bottom plate to be separated from the connecting piece, avoiding the nut jamming the bottom plate.

[0013] As an optimization, grooves matched with the nuts are provided on the mounting plate. By setting the grooves, the nuts can be fixed.

[0014] As an optimization, the mounting plate is provided with several sets of positioning columns. By providing the positioning columns, the nuts can be fixed, and the positioning columns and the nuts are in line-surface contact, which makes it easy to detach the positioning columns after welding.

[0015] As an optimization, the base plate, extension plate and limit plate are formed in one piece to facilitate production and processing.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention can connect the first steel column and the second steel column by arranging a connecting piece; by arranging a first bolt hole, a second bolt hole, a nut and a high-strength bolt, the top and the bottom of the connecting piece can be connected to the first steel column and the second steel column respectively, and each high-strength bolt is located on the same horizontal plane. The components have a high degree of standardization and a high degree of aesthetics. It can also avoid the high-strength bolts crossing the steel column. No long bolts are required. Only short bolts are needed to pass through the side wall of the steel column to stably connect with the nut. No on-site penetration welding is required, which facilitates on-site installation and reduces the labor intensity of workers. The present invention can carry the nut positioning device and prevent the nut positioning device from tilting by setting a base plate; by setting an extension plate, the base plate and the nut positioning device can be sent into the interior of the connector, and the extension plate is elastic, and the staff can use their hands to press the two groups of extension plates to approach each other, thereby avoiding friction between the extension plates and the inner wall of the connector, and facilitating the insertion or removal of the base plate from the connector; by setting a limit plate, it can be clamped on the end head of the connector to determine the depth position of the base plate and the nut positioning device, and the base plate and the extension plate are coordinated to make the nut positioning device correspond to the first bolt hole; by setting a nut positioning device, the nut can be pressed onto the inner wall of the connector so that the nut corresponds to the first bolt hole, thereby facilitating the welding of the nut to the inner wall of the connector. The present invention is not only convenient for installation, but also can ensure installation quality, and can also facilitate factory prefabrication and processing, effectively improving production and construction speed, and improving construction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the exploded structure of the first embodiment of the column-to-column splicing node applicable to steel pipe columns of the present invention.

[0019] Figure 2 Schematic diagram of the connecting piece in the second embodiment of the column-to-column splicing node applicable to steel pipe columns of the present invention.

[0020] Figure 3 This is a schematic diagram of connecting steel columns through vertical steel plates in the prior art.

[0021] Figure 4 This is a schematic diagram of connecting steel columns through horizontal steel plates in the prior art.

[0022] Figure 5Schematic diagram of the overall structure of an embodiment of a processing device for column-column splicing joints applicable to steel pipe columns according to the present invention.

[0023] Figure 6 Schematic diagram of a nut positioning device in another embodiment of a processing device for column-column splicing joints applicable to steel pipe columns according to the present invention.

[0024] In the figure: 1. First steel column; 2. Connector; 3. Second steel column; 4. High-strength bolt; 5. First bolt hole; 6. Nut; 7. Second bolt hole; 8. Base plate; 9. Extension plate; 10. Limiting plate; 11. Nut positioning device; 12. Base; 13. Push rod; 14. Mounting plate; 15. Pull ring; 16. Retaining ring; 17. Spring; 18. Notch; 19. Groove; 20. Positioning column. Detailed implementation manners

[0025] In order to clearly illustrate the technical features of this solution, the present invention will be elaborated in detail below through specific implementation manners and in conjunction with its accompanying drawings.

[0026] Embodiment 1

[0027] Figure 1 This is an embodiment of the column-column splicing joint applicable to steel pipe columns according to the present invention. As Figure 1 shown, a column-column splicing joint applicable to steel pipe columns includes a first steel column 1 and a second steel column 3, and also includes a connector 2 and high-strength bolts 4. A plurality of groups of first bolt holes 5 are provided at the top and bottom of the connector 2. Nuts 6 are provided inside the first bolt holes 5. The connector 2 is arranged inside the first steel column 1 and the second steel column 3. Second bolt holes 7 matching the first bolt holes 5 are provided at the splicing ends of the first steel column 1 and the second steel column 3. The high-strength bolts 4 pass through the second bolt holes 7 and the first bolt holes 5 in sequence and are connected to the nuts 6.

[0028] By providing the connector 2, the first steel column 1 and the second steel column 3 can be connected. By providing the first bolt holes 5, the second bolt holes 7, the nuts 6 and the high-strength bolts 4, the top and bottom of the connector 2 can be respectively connected to the first steel column 1 and the second steel column 3. Each high-strength bolt 4 is located on the same horizontal plane, with high standardization and high aesthetics of the components. It can also avoid the high-strength bolts 4 passing through the steel column horizontally. There is no need for long bolts, and only short bolts are needed to pass through the side wall of the steel column and be connected to the nuts 6. There is no need for on-site full-penetration welding, which is convenient for on-site installation and reduces the labor intensity of workers.

[0029] The first steel column 1 is a square steel pipe column or a rectangular steel pipe column. The cross-section of the second steel column 3 is exactly the same as that of the first steel column 1. The top of the first steel column 1 abuts against the bottom of the second steel column 3. The first steel column 1 can stably support the second steel column 3.

[0030] The connecting piece 2 is a steel pipe column formed integrally. The outer side wall of the connecting piece 2 is in close contact with the inner side walls of the first steel column 1 and the second steel column 3. A number of groups of first bolt holes 5 are provided on the four side walls of the connecting piece 2. The integrally formed steel pipe column can be conveniently inserted into the first steel column 1 as a whole for installation, improving the on-site installation efficiency.

[0031] The wall thickness of the connecting piece 2 is greater than that of the first steel column 1. The wall thickness of the connecting piece 2 is 2 - 4 mm thicker than those of the first steel column 1 and the second steel column 3, which can improve the strength of the joint.

[0032] As Figure 5 and Figure 6 As shown, the present invention also provides a processing device for the column-column splicing joint applicable to a steel pipe column, which is used to process the column-column splicing joint applicable to the steel pipe column. It includes a bottom plate 8. The four sides of the bottom plate 8 are matched with the inner side walls of the connecting piece 2. Extension plates 9 are vertically provided on both sides of the bottom plate 8. A limiting plate 10 is horizontally provided at the top of the extension plate 9. A nut positioning device 11 is provided on the top of the bottom plate 8, and the nut positioning device 11 corresponds to the position of the first bolt hole. By providing the bottom plate 8, it can carry the nut positioning device 11 and prevent the nut positioning device 11 from tilting; by providing the extension plates 9, the bottom plate 8 and the nut positioning device 11 can be sent into the inside of the connecting piece 2, and the extension plates 9 are elastic. The staff can press them inward by hand to make the two extension plates 9 approach each other, thus avoiding friction between the extension plates 9 and the inner side wall of the connecting piece 2 and facilitating the insertion or detachment of the bottom plate 8 from the connecting piece 2; by providing the limiting plate 10, it can be stuck on the end of the connecting piece 2 to determine the penetration position of the bottom plate 8 and the nut positioning device 11, and cooperate with the bottom plate 8 and the extension plates 9 to make the nut positioning device 11 correspond to the first bolt hole 5; by providing the nut positioning device 11, the nut 6 can be pressed against the inner side wall of the connecting piece 2 to make the nut 6 correspond to the first bolt hole 5, thus facilitating the welding of the nut to the inner side wall of the connecting piece.

[0033] As Figure 5 and Figure 6As shown, the nut positioning device 11 includes a base 12, a push rod 13, a mounting plate 14 and a pull ring 15. The base 12 is arranged on the bottom plate 8. There are two groups of push rods 13. One end of the push rod 13 is connected to the pull ring 15, and the other end of the push rod 13 passes through the base 12 through a sliding sleeve and is connected to the mounting plate 14. A retaining ring 16 is arranged on the push rod 13 between the base 12 and the mounting plate 14, and a spring 17 is sleeved on the push rod 13 between the retaining ring 16 and the base 12. Notches 18 matching the nuts 6 are arranged on the four sides of the bottom plate 8. By providing the base 12, the push rod 13 can be installed, facilitating the axial sliding of the push rod 13 and preventing the push rod 13 from tilting; by providing the push rod 13, the mounting plate 14 can be driven to move, and the two groups of push rods 13 can prevent the mounting plate 14 from rotating; by providing the mounting plate 14, the nut 6 can be fixed and pressed against the inner side wall of the connecting piece 2; by providing the pull ring 15, it is convenient for the staff to pull the push rod 13; by providing the spring 17 and the retaining ring 16, it can be reset when the staff releases the pull ring 15, pushing the push rod 13 to push the mounting plate 14 towards the inner side wall of the connecting piece 2, thereby pressing the nut 6 against the inner side wall of the connecting piece 2; by providing the notches 18, after the nut 6 and the connecting piece 2 are welded, it is convenient for the bottom plate 8 to break away from the connecting piece 2, preventing the nut 6 from jamming the bottom plate 8.

[0034] As Figure 5 and Figure 6 shown, a groove 19 or several groups of positioning posts 20 matching the nut 6 are arranged on the mounting plate 14. By providing the groove 19 or the positioning posts 20, the nut 6 can be fixed. The groove 19 and the nut 6 are in surface contact, which can ensure the fixation of the nut 6 and the stability during welding, while the positioning posts 20 can be in line-surface contact with the nut 6, and it is convenient for the positioning posts 20 to break away after welding.

[0035] As Figure 5 shown, the bottom plate 8, the extension plate 9 and the limiting plate 10 are integrally formed, which is convenient for production and processing.

[0036] Embodiment 2

[0037] Figure 2 This is the second embodiment of the present invention applicable to the column-column splicing joint of steel pipe columns. The difference from the first embodiment is that the connecting piece 2 includes four groups of steel plates. The outer side walls of the four groups of steel plates are respectively in close contact with the four inner side walls of the first steel column 1 and the second steel column 3. A number of first bolt holes 5 are arranged at the top and bottom of the four groups of steel plates, and the ends of adjacent two groups of steel plates are abutted or welded to each other. By providing that the connecting piece 2 includes four groups of steel plates, it is convenient to weld the nut 6 to the inner side of the steel plate, without the need for additional processing devices, which is convenient for factory processing.

[0038] When implementing Example 1 in the factory, first, two sets of first bolt holes 5 are drilled at the top and bottom of each side wall of the connecting piece 2, and second bolt holes 7 that match the first bolt holes 5 are drilled at the splicing ends of the first steel column 1 and the second steel column 3. Then, the staff can slightly press the two sets of limiting plates 10 inward with a little force, so that the two sets of extension plates 9 bend and retract inward and approach each other. At this time, the bottom plate 8 and the extension plates 9 can be inserted into the connecting piece 2. When it is expected that the limiting plates 10 will contact the connecting piece 2, release the limiting plates 10, and the extension plates 9 will return to their original state and tightly adhere to the inner side wall of the connecting piece 2. And the staff needs to press down and adjust the two sets of limiting plates 10 and check whether there is a gap between the limiting plates 10 and the ends of the connecting piece 2 to make the limiting plates 10 tightly adhere to the ends of the connecting piece 2. At this time, the mounting plate 14 corresponds to the first bolt hole 5 it faces. Then, the staff can pull the mounting plate 14 through the pull ring 15, and the spring 17 is compressed. At this time, the nut 6 can be placed in the groove 19 or the positioning post 20, and then release the pull ring 15. The spring 17 returns to its original state and pushes the push rod 13 through the retaining ring 16, so as to push the mounting plate 14 toward the inner side wall of the connecting piece 2 and press the nut 6 tightly on the inner side wall of the connecting piece 2. The threaded hole of the nut 6 corresponds to the first bolt hole 5 and there is no misalignment. At this time, the staff can spot-weld the nut 6 and the inner side wall of the connecting piece 2 from the end of the connecting piece 2, which is convenient and fast for welding. After both sets of nuts 6 are welded, the staff first uses one hand to pull the pull ring 15 to separate the groove 19 or the positioning post 20 from the nut 6, and then uses the other hand to slightly press the two sets of limiting plates 10 inward, so that the two sets of extension plates 9 bend and retract inward, and then lift it to remove the bottom plate 8 from the connecting piece 2. It should be noted that if the connecting piece 2 is of a large size and it is impossible to press the two sets of limiting plates 10 simultaneously with one hand, a positioning hole can be drilled on the bottom plate 8, and a pin is arranged in the positioning hole. When the pull ring 15 is pulled to the positioning hole, the staff lifts the pin to block the pull ring 15. At this time, when releasing the hand, the spring 17 cannot return to its original state, and the groove 19 or the positioning post 20 remains separated from the nut 6. The staff can press the two sets of limiting plates 10 with both hands and lift the limiting plates 10 to take them out. After all the nuts 6 on the connecting piece 2 are welded, it can be transported to the construction site.

[0039] When installing on-site, first install the first steel column 1, insert the bottom of the connecting piece 2 into the top of the first steel column 1 to align the first bolt hole 5 with the second bolt hole 7, and then sequentially pass the high-strength bolt 4 through the second bolt hole 7 and the first bolt hole 5 and connect it to the nut 6 for fixation. After completing the fixation of the connecting piece 2 and the first steel column 1, sleeved the bottom of the second steel column 3 on the outside of the connecting piece 2, and the bottom of the second steel column 3 abuts against the top of the first steel column 1. At this time, the second bolt hole 7 on the second steel column 3 is aligned with the first bolt hole 5 at the top of the connecting piece 2. The staff uses the high-strength bolt 4 to sequentially pass through the second bolt hole 7 and the first bolt hole 5 and connect it to the nut 6 to complete the fixation of the connecting piece 2 and the second steel column 3, thus completing the splicing of the columns.

[0040] It should be noted that when the factory processes the connecting member 2, it is also possible to only open two groups of first bolt holes 5 at the top of each side wall of the connecting member 2, open second bolt holes 7 matching the first bolt holes 5 at the splicing end of the second steel column 3. After the nut 6 is welded, the bottom of the connecting member 2 is inserted into the top of the first steel column 1 for welding, so that the connecting member 2 and the first steel column 1 are prefabricated in the factory. During on-site installation, the installation process of the connecting member 2 and the first steel column 1 is omitted, further facilitating on-site installation. The present invention can not only facilitate installation but also ensure the installation quality, effectively improving the construction speed and construction effect.

[0041] In the present invention, the description of the orientation or relative position relationship of the structure, such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicates the orientation or relative position relationship based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the structure referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

Claims

1. A column-column splicing joint applicable to steel pipe columns, comprising a first steel column (1) and a second steel column (3), characterized in that: It further includes a connecting member (2) and high-strength bolts (4). A number of groups of first bolt holes (5) are provided at the top and bottom of the connecting member (2). Nuts (6) are provided inside the first bolt holes (5). The connecting member (2) is arranged inside the first steel column (1) and the second steel column (3). Second bolt holes (7) that match the first bolt holes (5) are provided at the splicing ends of the first steel column (1) and the second steel column (3). The high-strength bolts (4) pass through the second bolt holes (7) and the first bolt holes (5) in sequence and are connected to the nuts (6).

2. The column-column splicing joint applicable to steel pipe columns according to claim 1, characterized in that: The first steel column (1) is a square steel pipe column or a rectangular steel pipe column. The cross-section of the second steel column (3) is exactly the same as that of the first steel column (1). The top of the first steel column (1) abuts against the bottom of the second steel column (3).

3. The column-column splicing joint applicable to steel pipe columns according to claim 2, wherein: The connecting member (2) is a steel pipe column formed integrally. The outer side wall of the connecting member (2) is closely attached to the inner side walls of the first steel column (1) and the second steel column (3). A number of groups of first bolt holes (5) are provided on the four side walls of the connecting member (2).

4. The column-column splicing joint applicable to steel pipe columns according to claim 2, characterized in that: The connecting member (2) includes four groups of steel plates. The outer side walls of the four groups of steel plates are respectively closely attached to the four inner side walls of the first steel column (1) and the second steel column (3). A number of groups of first bolt holes (5) are provided at the top and bottom of the four groups of steel plates.

5. The column-column splicing joint applicable to steel pipe columns according to any one of claims 1 to 4, characterized in that: The wall thickness of the connecting member (2) is greater than the wall thickness of the first steel column (1).

6. A processing device for column-column splicing joints applicable to steel pipe columns, which is used to process the column-column splicing joints applicable to steel pipe columns described in claim 3, and is characterized in that: It includes a bottom plate (8). The four sides of the bottom plate (8) are matched with the inner side wall of the connecting member (2). Extension plates (9) are vertically provided on both sides of the bottom plate (8). A limiting plate (10) is horizontally provided at the top of the extension plates (9). A nut positioning device (11) is provided on the top of the bottom plate (8).

7. The processing device for column-column splicing joints applicable to steel pipe columns according to claim 6, characterized in that: The nut positioning device (11) includes a base (12), a push rod (13), a mounting plate (14) and a pull ring (15). The base (12) is arranged on the bottom plate (8). One end of the push rod (13) is connected to the pull ring (15). The other end of the push rod (13) passes through the base (12) and is connected to the mounting plate (14). A retaining ring (16) is provided on the push rod (13) between the base (12) and the mounting plate (14). A spring (17) is sleeved on the push rod (13) between the retaining ring (16) and the base (12). Notches (18) that match the nuts (6) are provided on the four sides of the bottom plate (8).

8. The processing device for the column-column splicing joint applicable to steel pipe columns according to claim 7, characterized in that: A groove (19) that matches the nut (6) is provided on the mounting plate (14).

9. The processing device for column-column splicing joints applicable to steel pipe columns according to claim 7, characterized in that: A number of groups of positioning columns (20) are provided on the mounting plate (14).

10. The processing device for column-column splicing joints applicable to steel pipe columns according to any one of claims 6 to 9, characterized in that: The bottom plate (8), the extension plates (9) and the limiting plate (10) are formed integrally.

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