Steel structure column foot

Abstract

The utility model provides a steel structure column foot, which belongs to the field of steel structure buildings, and comprises a base, the upper surface of the base is provided with a pit and a foundation structure assembly, the foundation structure assembly comprises a column foot lower bottom plate arranged in the pit, a column foot upper bottom plate is arranged in the pit, the column foot upper bottom plate and the column foot lower bottom plate are arranged in parallel, and the foundation foot upper bottom plate and the column foot lower bottom plate are arranged in parallel. A plurality of reinforcing bolts are arranged in the base at equal intervals, and a plurality of nuts are arranged above the lower bottom plate of the column foot at equal intervals. According to the utility model, the foundation structure assembly and the reinforcing assembly are matched with each other, and the column foot upper bottom plate, the stiffening plate, the column foot lower bottom plate and the reinforced concrete structure are utilized to meet the requirements of bearing larger load and meeting the punching resistance of the column foot, so that the problems of overlarge foundation and overlarge occupied space are avoided, and the service life of the column foot is prolonged. And meanwhile, quick and convenient hoisting is achieved, and meanwhile the problems that on-site welding workload is too large, and air pollution is caused are solved.

Description

Technical Field

[0001] The utility model relates to the field of steel structure buildings, in particular to a steel structure column foot. Background Art

[0002] At present, the load of traditional steel structure buildings is too large. Considering factors such as earthquake resistance, the calculated embedded column base is too large. Considering the structural requirements and shearing problems of the embedded column base, the foundation thickness often needs to be very large, resulting in cumbersome foundation construction and difficult foundation pit support. Therefore, the design of double-layer bottom plate non-exposed column base can meet better performance in resisting shear damage, but its structure is unique and complex compared to ordinary column bases. In order to ensure the smooth installation of the non-exposed column base of steel structure buildings and ensure the accurate positioning of its superstructure, the production of the column base is particularly important.

[0003] After searching, the patent document with publication number CN210827540U discloses a steel structure column foot, including a steel column, a partition is fixed at the lower end of the steel column, a plurality of through holes are opened on the edge of the partition, a steel frame is arranged around the outer side of the steel column, the steel frame includes a plurality of vertical bars, fixed bars are welded between the plurality of vertical bars, stirrups are also welded between the plurality of vertical bars, a plurality of vertically arranged anchor bolts are welded between the vertical bars and the steel column below the partition, and the utility model can make the steel column in a vertical state when the partition is abutted against the abutment plate, thereby keeping the steel column in a vertical state

[0004] The above prior art often has the following problems when used:

[0005] At present, it is difficult for exposed column bases to meet the requirements of large bending moments, or the column bases are made very large, which requires a large ground space and a very thick foundation, which will affect the normal process layout. At the same time, occupying a large ground space will bring a series of problems, such as making the foundation construction complicated and the foundation pit support difficult. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a steel structure column foot.

[0007] The embodiment of the utility model provides a steel structure column foot, comprising:

[0008] A base, wherein a pit is provided on the upper surface of the base;

[0009] A basic structure component, the basic structure component includes a column foot bottom plate arranged in a pit, a column foot upper bottom plate is arranged in the pit, the column foot upper bottom plate is arranged in parallel with the column foot bottom plate, a plurality of reinforcing bolts are equidistantly arranged in the base, a plurality of nuts are equidistantly arranged above the column foot bottom plate, a plurality of reinforcing bolts are respectively threadedly connected with a plurality of nuts, a plurality of reinforcing bolts all penetrate the bottom surface of the column foot bottom plate, a box-type column is fixedly connected to the upper surface of the column foot bottom plate, a plurality of studs are equidistantly fixedly connected to the circumferential side walls of the box-type column, a stiffening plate is fixedly connected between the inner walls of the upper part of the box-type column, and a grouting hole is arranged on the upper surface of the stiffening plate;

[0010] A reinforcement component is arranged between the box column and the upper base plate of the column foot.

[0011] Furthermore, the reinforcement component includes longitudinal ribs that are equidistantly fixed between the inner top surface of the column base upper plate and the inside of the base, a plurality of the longitudinal ribs are equidistantly arranged along the circumferential inner side wall of the column base upper plate, a plurality of horizontal ribs are equidistantly fixed between the inner side walls of the column base upper plate, the plurality of horizontal ribs are in a vertical positional relationship with the plurality of longitudinal ribs, and angle ribs are arranged between adjacent inner side walls of the column base upper plate.

[0012] Furthermore, the upper surface of the bottom plate on the column foot is flush with the upper surface of the base.

[0013] Furthermore, the grouting hole is communicated with the interior of the box-type column, and the interior of the box-type column is filled with self-compacting concrete.

[0014] Furthermore, the side walls above the box-type column elevation are wrapped with a concrete protective layer.

[0015] Furthermore, the space between the box-type column and the inner side wall of the upper base plate of the column foot is filled with self-compacting concrete, and the space between the lower base plate of the column foot and the base is filled with non-shrinkage grouting material.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] In the utility model, the basic structure components and the reinforcement components cooperate with each other, and the upper base plate of the column foot, the stiffening plate, the lower base plate of the column foot, and the reinforced concrete structure are utilized to meet the requirements of bearing a large load and meeting the shear resistance of the column foot, thereby avoiding the problems of too large a foundation and too much space occupied. At the same time, the steel columns and column feet can be manufactured in advance in the factory and transported to the construction site for hoisting. While achieving fast and convenient hoisting, it also avoids the problems of excessive on-site welding workload and air pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structural analysis of a steel structure column foot described in an embodiment of the utility model.

[0019] Figure 2 It is a schematic diagram of a three-dimensional structural analysis from another perspective of a steel structure column foot described in an embodiment of the utility model.

[0020] Figure 3 It is a three-dimensional structural schematic diagram of a steel structure column foot described in an embodiment of the utility model.

[0021] In the above drawings: 1 base, 2 pit, 3 column foot lower base plate, 4 column foot upper base plate, 5 reinforcement bolts, 6 nuts, 7 box columns, 8 studs, 9 stiffening plates, 10 grouting holes, 11 longitudinal reinforcement, 12 horizontal reinforcement, 13 corner reinforcement, 14 concrete protective layer, 15 non-shrinkage grouting material. DETAILED DESCRIPTION

[0022] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] like Figure 1-Figure 3 As shown, the embodiment of the utility model provides a steel structure column foot, comprising:

[0024] A base 1, a pit 2 is provided on the upper surface of the base 1, and a basic structure component, the basic structure component includes a column foot lower bottom plate 3 arranged in the pit 2, a column foot upper bottom plate 4 is provided in the pit 2, the column foot upper bottom plate 4 is arranged in parallel with the column foot lower bottom plate 3, a plurality of reinforcing bolts 5 are equidistantly provided in the base 1, a plurality of nuts 6 are equidistantly provided above the column foot lower bottom plate 3, a plurality of reinforcing bolts 5 are respectively threadedly connected with a plurality of nuts 6, a plurality of reinforcing bolts 5 all penetrate the bottom surface of the column foot lower bottom plate 3, a box-type column 7 is fixedly connected to the upper surface of the column foot lower bottom plate 3, and the circumferential side wall of the box-type column 7, etc. A plurality of bolts 8 are fixedly connected to the box-type column 7, and a stiffening plate 9 is fixedly connected between the inner walls of the upper part of the box-type column 7 to increase the rigidity of the column foot plate. Grouting holes 10 are arranged on the upper surface of the stiffening plate 9. The upper surface of the bottom plate 4 on the column foot is flush with the upper surface of the base 1. The grouting holes 10 are connected to the inside of the box-type column 7. The inside of the box-type column 7 is filled with self-compacting concrete to provide sufficient support for the box-type column 7. The side wall of the part above the elevation of the box-type column 7 is wrapped with a concrete protective layer 14 to provide sufficient protection and waterproofing for the part of the box-type column 7 above the elevation.

[0025] A reinforcement component is arranged between the box-type column 7 and the upper base plate 4 of the column foot. The reinforcement component includes longitudinal ribs 11 equidistantly fixedly connected between the inner top surface of the upper base plate 4 of the column foot and the inside of the base 1. Multiple longitudinal ribs 11 are equidistantly arranged along the circumferential inner wall of the upper base plate 4 of the column foot. Multiple horizontal ribs 12 are equidistantly fixedly arranged between the inner walls of the upper base plate 4 of the column foot. The multiple horizontal ribs 12 and the multiple longitudinal ribs 11 are in a vertical positional relationship. Corner ribs 13 are arranged between adjacent inner walls of the upper base plate 4 of the column foot. Self-compacting concrete is filled between the inner walls of the box-type column 7 and the upper base plate 4 of the column foot. Non-shrinkage grouting material 15 is filled between the lower base plate 3 of the column foot and the base 1, so that the structure can withstand a larger load.

[0026] The detailed working process of the utility model is as follows:

[0027] During the hoisting, a plurality of longitudinal reinforcements 11 are equidistantly preset inside the base of the pit 2, and then a column foot lower base plate 3 is set in the pit 2, and the column foot lower base plate 3 is fixed by the cooperation of a plurality of reinforcing bolts 5 and nuts 6, and then a non-shrinkage grouting material 15 is filled between the column foot lower base plate 3 and the base 1 to enhance the bearing force, and then the column foot upper base plate 4 and the box column 7 are installed, and the column foot upper base plate 4 and the column foot lower base plate 3 are arranged in parallel, and the studs 8 are fixed to the side wall of the box column 7 by welding, and the column foot uses the studs 8 to resist the shear force, and after the above is completed, the inside of the box column 7 is poured and filled through the pouring hole 1, and the part above the elevation of the box column 7 is wrapped with a concrete protective layer 14 to meet the waterproofing requirements;

[0028] After completing the above, the structure is reinforced by setting a plurality of horizontal ribs 12 and angle ribs 13, and setting self-compacting concrete on the outside of the box column 7, that is, between the box column 7 and the upper base plate 4 of the column foot to enhance the axial force. The prefabrication in the factory can shorten the construction period, and the non-exposed column foot is designed and optimized to solve the layout problems such as large bending moment force and land occupation. While realizing fast and convenient lifting, it also avoids the problems of excessive on-site welding workload and air pollution.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A steel structure column foot, characterized in that: include: A base (1), wherein a recess (2) is provided on an upper surface of the base (1); A foundation structure component, the foundation structure component comprising a column foot lower base plate (3) arranged in a pit (2), a column foot upper base plate (4) arranged in the pit (2), the column foot upper base plate (4) and the column foot lower base plate (3) arranged in parallel, a plurality of reinforcing bolts (5) equidistantly arranged in the base (1), a plurality of nuts (6) equidistantly arranged above the column foot lower base plate (3), the plurality of reinforcing bolts (5) respectively threadedly connected to the plurality of nuts (6), the plurality of reinforcing bolts (5) all penetrate the bottom surface of the column foot lower base plate (3), a box-type column (7) is fixedly connected to the upper surface of the column foot lower base plate (3), a plurality of studs (8) are equidistantly fixedly connected to the circumferential side walls of the box-type column (7), a stiffening plate (9) is fixedly connected between the inner walls of the upper part of the box-type column (7), and a grouting hole (10) is provided on the upper surface of the stiffening plate (9); A reinforcement component is provided between the box-type column (7) and the upper base plate (4) of the column foot.

2. A steel structure column foot according to claim 1, characterized in that: in: The reinforcing component comprises longitudinal ribs (11) equidistantly fixedly connected between the inner top surface of the column foot upper base plate (4) and the inside of the base (1); a plurality of the longitudinal ribs (11) are equidistantly arranged along the circumferential inner side wall of the column foot upper base plate (4); a plurality of horizontal ribs (12) are equidistantly fixedly arranged between the inner side walls of the column foot upper base plate (4); the plurality of horizontal ribs (12) and the plurality of longitudinal ribs (11) are in a vertical positional relationship; and angle ribs (13) are arranged between adjacent inner side walls of the column foot upper base plate (4).

3. A steel structure column foot according to claim 1, characterized in that: in: The upper surface of the column foot upper bottom plate (4) is flush with the upper surface of the base (1).

4. A steel structure column foot according to claim 1, characterized in that: in: The grouting hole (10) is in communication with the interior of the box-type column (7), and the interior of the box-type column (7) is filled with self-compacting concrete.

5. The steel structure column foot according to claim 1, characterized in that: in: The side wall of the box-type column (7) above the elevation is wrapped with a concrete protective layer (14).

6. A steel structure column foot according to claim 4, characterized in that: in: The space between the box-type column (7) and the inner side wall of the column foot upper base plate (4) is filled with self-compacting concrete, and the space between the column foot lower base plate (3) and the base (1) is filled with non-shrinkage grouting material (15).

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