Concrete-filled steel tube composite column

Abstract

The utility model relates to the technical field of concrete-filled steel tube composite columns, and discloses a concrete-filled steel tube composite column, the surface of a steel tube is provided with a plurality of mounting through holes, the mounting through holes are internally provided with mounting screws, and one side, close to the inner wall of the steel tube, of each mounting screw is in threaded connection with a second locking nut; a first locking nut is in threaded connection with the side, close to the outer wall of the steel pipe, of the mounting screw rod, a first annular hoop plate is arranged on the side, away from the steel pipe, of the mounting screw rod, a plurality of first fixing holes are formed in the inner wall of the first annular hoop plate, a first steel bar through hole is formed in the top of the first annular hoop plate, and a steel bar is arranged in the first steel bar through hole. The reinforcing steel bar through holes I, the annular hoop plates and the like are arranged to be matched with the reinforcing steel bars for use, and the reinforcing steel bars penetrate through the interiors of the reinforcing steel bar through holes I, so that displacement of the reinforcing steel bars during pouring can be prevented, the fact that the distances among the reinforcing steel bars are the same is ensured, and the structural emphasis is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel tube concrete composite columns, in particular to a steel tube concrete composite column. Background Art

[0002] The composite steel tube concrete column is composed of the steel tube concrete in the middle of the cross section and the reinforced concrete outside the steel tube. It is a structural system independently developed in my country. Compared with reinforced concrete columns and steel-framed concrete columns, composite columns have better compressive and seismic performance, and compared with steel tube concrete columns, composite columns have better fire resistance.

[0003] The existing steel tube concrete composite columns have loose internal steel bars during actual construction, which are easy to shift during pouring. The spacing between the steel tube and the frame steel bars is easily offset, resulting in inaccurate spacing between the steel tube and the frame steel bars, thereby affecting the structural strength. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a steel tube concrete composite column to solve the problem that the existing steel tube concrete composite column mentioned in the above background technology, and in actual construction, the internal steel bars of the steel tube concrete composite column are loose and easy to shift during pouring, and the spacing between the steel tube and the frame steel bars is easily offset, resulting in inaccurate spacing between the steel tube and the frame steel bars, thereby affecting the structural strength.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steel tube concrete composite column, comprising a steel tube, a plurality of mounting through holes are opened on the surface of the steel tube, a mounting screw is arranged inside the mounting through hole, a locking nut is threadedly connected to the side of the mounting screw close to the inner wall of the steel tube, a locking nut is threadedly connected to the side of the mounting screw close to the outer wall of the steel tube, an annular hoop plate is arranged on the side of the mounting screw away from the steel tube, a plurality of fixing holes are opened on the inner wall of the annular hoop plate, a steel bar through hole is opened on the top of the annular hoop plate, steel bars are arranged inside the steel bar through hole, annular hoop bars are welded to the middle part of the surface of the steel bars, an annular hoop plate is arranged on the bottom of the steel bars, a steel bar through hole is opened on the top of the annular hoop plate, and a plurality of fixing holes are opened on the inner wall of the annular hoop plate.

[0006] Preferably, the plurality of mounting through holes are symmetrically distributed in a circular array on the upper and lower sides of the steel pipe, and the spacings between the plurality of mounting through holes are the same.

[0007] Preferably, there are several mounting screws, and the several mounting screws are respectively distributed inside several mounting through holes, and the diameters of the several mounting screws are the same as the diameters of the several mounting through holes.

[0008] By adopting the above technical solution, installation screws, installation through holes, etc. are set for use. The installation screws are passed through the installation through holes and are respectively fastened to the outer wall and inner wall of the steel pipe using locking nut 1 and locking nut 2, which makes it convenient for workers to quickly disassemble and install.

[0009] Preferably, the positions of the plurality of fixing holes 1 correspond to the positions of the mounting screws, the diameter of the fixing hole 1 is the same as the diameter of the mounting screws, and the mounting screws extend into the interior of the fixing holes and fit tightly.

[0010] Preferably, the number of the steel bar through holes 1 is several, the several steel bar through holes 1 are distributed in a circular array on the top of the annular hoop plate 1, and the spacing between the several steel bar through holes 1 is the same.

[0011] By adopting the above technical solution, by setting a steel bar through hole, an annular hoop plate and the like in conjunction with the steel bars, a number of steel bars are passed through the inside of a number of steel bar through holes, which can limit the displacement of the steel bars and ensure that the spacing between the several steel bars is the same, thereby improving the structural stress.

[0012] Preferably, the position of the second steel bar through hole corresponds to the position of the first steel bar through hole, and the bottom of the steel bar extends to the inside of the second steel bar through hole and fits tightly with the inner wall of the second steel bar through hole.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The steel tube concrete composite column is used with steel bars by arranging steel bar through holes, annular hoop plates, etc., and a plurality of steel bars are passed through the interior of a plurality of steel bar through holes, so that displacement of the steel bars during pouring can be prevented, thereby ensuring that the spacing between the plurality of steel bars is the same, thereby improving the structural stress.

[0015] 2. The steel tube concrete composite column is used in conjunction with the setting of mounting screws, mounting through holes, etc. The mounting screws pass through the mounting through holes and are respectively fastened to the outer wall and inner wall of the steel tube using locking nuts 1 and 2, so that the staff can quickly disassemble and install the steel tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the steel pipe structure of the utility model;

[0019] Figure 4This is a structural schematic diagram of an annular hoop plate of the utility model;

[0020] Figure 5 This is a schematic diagram of the second structure of the annular hoop plate of the utility model;

[0021] Figure 6 This is a schematic diagram of the screw structure for installing the utility model.

[0022] In the figure: 1. steel pipe; 2. installation through hole; 3. installation screw; 4. locking nut one; 5. locking nut two; 6. annular hoop plate one; 7. fixing hole one; 8. steel bar through hole one; 9. steel bar; 10. annular hoop; 11. annular hoop plate two; 12. steel bar through hole two; 13. fixing hole two. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] Please refer to Figure 1-5 A steel tube concrete composite column comprises a steel tube 1, a plurality of mounting through holes 2 are provided on the surface of the steel tube 1, the plurality of mounting through holes 2 are symmetrically distributed on the upper and lower sides of the steel tube 1 in a circular array, and the spacing between the plurality of mounting through holes 2 is the same, a mounting screw 3 is provided inside the mounting through hole 2, a locking nut 2 5 is threadedly connected to the side of the mounting screw 3 close to the inner wall of the steel tube 1, a locking nut 1 4 is threadedly connected to the side of the mounting screw 3 close to the outer wall of the steel tube 1, an annular hoop plate 6 is provided on the side of the mounting screw 3 away from the steel tube 1, a plurality of fixing holes 7 are provided on the inner wall of the annular hoop plate 6, a steel bar through hole 8 is provided on the top of the annular hoop plate 6, and the steel There are several steel bar through holes 8, which are distributed in a circular array on the top of the annular hoop plate 6, and the spacing between the several steel bar through holes 8 is the same. A steel bar 9 is arranged inside the steel bar through hole 8, and a circular hoop 10 is welded to the middle of the surface of the steel bar 9. An annular hoop plate 11 is arranged at the bottom of the steel bar 9, and a steel bar through hole 12 is opened on the top of the annular hoop plate 11. The position of the steel bar through hole 12 corresponds to the position of the steel bar through hole 8, and the bottom of the steel bar 9 extends to the inside of the steel bar through hole 12 and is tightly fitted with the inner wall of the steel bar through hole 12. The inner wall of the annular hoop plate 11 is provided with several fixing holes 13.

[0026] Working principle: During construction, the staff places the steel pipe 1 at the site to be constructed, uses several installation screws 3 to pass through the installation through holes 2 on the steel pipe 1 and inserts them into the fixing holes 7 of the annular hoop plate 6, and uses locking nuts 1 4 and locking nuts 2 5 to fasten them to the outer wall and inner wall of the steel pipe 1 respectively, thereby completing the installation of the annular hoop plate 6. The installation method of the annular hoop plate 2 11 is similar. At this time, the staff inserts several steel bars 9 into the interior of several steel bar through holes 8 in turn, and extends them to the interior of the steel bar through holes 2 12, thereby welding and fixing them. At this time, the staff welds the annular hoop reinforcement 10 to the surface of several steel bars 9 to enhance the strength of the steel bars 9. At this time, the staff puts baffles around and pours the mixed soil to form a steel pipe 1 mixed soil composite column.

[0027] Compared with the related art, the steel tube concrete composite column provided by the utility model has the following beneficial effects: by setting a steel bar through hole 8, an annular hoop plate and the like in conjunction with the steel bar 9, and by passing a plurality of steel bars 9 through the interior of a plurality of steel bar through holes 8, displacement of the steel bars 9 during pouring can be prevented, thereby ensuring that the spacing between the plurality of steel bars 9 is the same, thereby improving the structural emphasis.

[0028] Embodiment 2:

[0029] Please refer to Figure 1-6 A plurality of mounting through holes 2 are provided on the surface of the steel pipe 1, and mounting screws 3 are provided inside the mounting through holes 2. The number of mounting screws 3 is several, and the plurality of mounting screws 3 are respectively distributed inside the plurality of mounting through holes 2, and the diameters of the plurality of mounting screws 3 are the same as the diameters of the plurality of mounting through holes 2. A locking nut 2 5 is threadedly connected to the side of the mounting screw 3 close to the inner wall of the steel pipe 1, and a locking nut 1 4 is threadedly connected to the side of the mounting screw 3 close to the outer wall of the steel pipe 1. An annular hoop plate 6 is provided on the side of the mounting screw 3 away from the steel pipe 1, and a plurality of fixing holes 7 are provided on the inner wall of the annular hoop plate 6. The positions of the plurality of fixing holes 7 correspond to the positions of the mounting screw 3, the diameters of the fixing holes 7 are the same as the diameters of the mounting screw 3, and the mounting screw 3 extends to the inside of the fixing holes and fits tightly.

[0030] Working principle: During installation, the staff will pass several installation screws 3 through the installation through holes 2 on the steel pipe 1 and insert them into the interior of the fixing hole 7 of the annular hoop plate 6, and use the locking nut 1 4 and the locking nut 2 5 to fasten them to the outer wall and inner wall of the steel pipe 1 respectively, thereby completing the installation of the annular hoop plate 6. The installation method of the annular hoop plate 2 11 is the same.

[0031] Compared with the related art, the steel tube concrete composite column provided by the utility model has the following beneficial effects: by setting the installation screw 3, the installation through hole 2, etc. for use in combination, the installation screw 3 passes through the installation through hole 2 and is respectively fastened to the outer wall and the inner wall of the steel tube 1 by using the locking nut 1 4 and the locking nut 2 5, which makes it convenient for the staff to quickly disassemble and install.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel tube concrete composite column, comprising a steel tube (1), characterized in that: The surface of the steel pipe (1) is provided with a plurality of mounting through holes (2), the mounting through holes (2) are provided with mounting screws (3), the side of the mounting screws (3) close to the inner wall of the steel pipe (1) is threadedly connected with a second locking nut (5), the side of the mounting screws (3) close to the outer wall of the steel pipe (1) is threadedly connected with a first locking nut (4), the side of the mounting screws (3) away from the steel pipe (1) is provided with an annular hoop plate (6), the inner wall of the annular hoop plate (6) is opened A plurality of fixing holes (7) are provided, a steel bar through hole (8) is provided at the top of the annular hoop plate (6), a steel bar through hole (9) is provided inside the steel bar through hole (8), an annular hoop (10) is welded to the middle of the surface of the steel bar (9), an annular hoop plate (11) is provided at the bottom of the steel bar (9), a steel bar through hole (12) is provided at the top of the annular hoop plate (11), and a plurality of fixing holes (13) are provided on the inner wall of the annular hoop plate (11).

2. The steel tube concrete composite column according to claim 1, characterized in that: The plurality of mounting through holes (2) are symmetrically distributed in a circular array on the upper and lower sides of the steel pipe (1), and the spacings between the plurality of mounting through holes (2) are the same.

3. The steel tube concrete composite column according to claim 1, characterized in that: The number of the mounting screw rods (3) is several, and the several mounting screw rods (3) are respectively distributed inside the several mounting through holes (2), and the diameter of the several mounting screw rods (3) is the same as the diameter of the several mounting through holes (2).

4. The steel tube concrete composite column according to claim 1, characterized in that: The positions of the plurality of fixing holes (7) correspond to the positions of the mounting screws (3), the diameter of the fixing holes (7) is the same as the diameter of the mounting screws (3), and the mounting screws (3) extend into the interior of the fixing holes and fit tightly.

5. The steel tube concrete composite column according to claim 1, characterized in that: The number of the steel bar through holes (8) is several, and the several steel bar through holes (8) are distributed in a circular array on the top of the annular hoop plate (6), and the spacing between the several steel bar through holes (8) is the same.

6. The steel tube concrete composite column according to claim 1, characterized in that: The position of the second steel bar through hole (12) corresponds to the position of the first steel bar through hole (8), and the bottom of the steel bar (9) extends to the inside of the second steel bar through hole (12) and fits tightly with the inner wall of the second steel bar through hole (12).

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