Beam column joint structure containing basement steel structure

Abstract

The utility model discloses a beam column joint structure comprising a basement steel structure. The structure comprises an inner column connected above a basement, an outer column connected to the periphery of the inner column, a frame beam connected to the inner column in the horizontal direction and located on the first layer of the structure, a butt joint plate connected between the inner column and the frame beam, an anchor plate connected between the top of the butt joint plate and the frame beam, an anchor bar connected to the bottom of the anchor plate and a concrete base connected to the bottom of the inner column. And the column foot anchor bolts penetrate through and are connected with a basement bottom plate of the concrete base. By means of the joint arrangement of the butt joint plate, the reserved stirrup holes, the anchoring plate and the anchoring bars, effective connection between the inner column and the frame beam and between the inner column and the oblique beam can be guaranteed, and the connection strength can be further enhanced; the concrete base and the column foot anchor bolts are arranged, so that the stress area of the column bottom is enlarged, and the column bottom is fixedly connected with a basement bottom plate through the column foot anchor bolts; and through the arrangement of the inner column vertical ribs, the inner column is further fixedly connected with the basement bottom plate, and the integral connectivity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure node construction, in particular to a steel structure beam-column node structure including a basement. Background Art

[0002] During the construction of steel structures, the installation of columns and beams is the most important part of the entire structure. As the application forms and scope of steel structures become wider and wider, the styles and connection forms of columns are also increasing. When constructing a steel structure with a basement, it is necessary to set up a composite column with a core column. How to set the column bottom node of the composite column and the connection node between the inner column and the upper beam requires targeted design. Utility Model Content

[0003] The utility model provides a basement steel structure beam-column node structure, which is used to solve the technical problems of installation and fixation of the basement steel structure column bottom, connection between the inner column and the frame beam, connection between the inner column and the inclined beam, etc.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A beam-column node structure of a steel structure containing a basement, comprising inner columns connected to the basement, outer columns connected to the outer periphery of the inner columns, frame beams connected to the inner columns horizontally and located on the first floor of the structure, butt plates connected between the inner columns and the frame beams, anchor plates connected between the tops of the butt plates and the frame beams, anchor bars connected to the bottoms of the anchor plates, concrete bases connected to the bottoms of the inner columns, column foot anchor bolts penetrating and connecting the concrete bases and the basement floor slab, and basement columns arranged below the basement floor slab and directly below the inner columns.

[0006] Furthermore, the inner column is a circular column, and pegs are arranged at intervals on the column body; the bottom of the inner column is connected to the circular bottom plate; the diameter of the circular bottom plate is larger than the diameter of the inner column.

[0007] Furthermore, a truncated cone-shaped concrete base is arranged below the circular bottom plate, and column foot anchor bolts are arranged at intervals on the circular bottom plate.

[0008] Furthermore, the column foot anchor bolt is J-shaped, the top of which is fixed to the top of the circular base plate by a nut, and the lower vertical part passes through the circular base plate, the concrete base and up to the basement base plate.

[0009] Furthermore, an inclined beam is connected to the inner corner where the frame beam is connected to the anchor plate. The inclined beam is an I-beam, one side of the connecting end of which is welded to the inner column and the other side is welded to the anchor plate.

[0010] Furthermore, the docking plate is an inverted T-shaped plate, the top of which is welded to the bottom of the anchor plate; reserved stirrup holes are also provided on the upper part of the docking plate; ribs are also provided in the upper and middle part of the docking plate; the ribs connect the docking plate and the inner column.

[0011] Furthermore, the length of the anchor plate is greater than the length of the inclined beam designed to connect the frame beam, and anchor bars are arranged in a grid pattern on the anchor plate; the anchoring length of the anchor bars is greater than half the height of the frame beam.

[0012] Furthermore, the inner columns are vertically provided with square inner column stirrups corresponding to the outer column intervals, and the inner sides of the inner column stirrups are connected with inner column vertical bars arranged in a ring shape; the bottom of the inner column vertical bars is L-shaped, and the horizontal part thereof is arranged in the basement floor.

[0013] Furthermore, inner column tension bars are provided at the horizontal upward corners of the inner column stirrups, and the inner column tension bars are arranged obliquely to form a triangle with the inner column stirrups.

[0014] The beneficial effects of the utility model are embodied in:

[0015] 1) The utility model is conducive to ensuring the effective connection between the inner column and the frame beam and the inclined beam respectively, and can further enhance the connection strength through the joint arrangement of the butt plate, the reserved stirrup holes, the anchor plate and the anchor bars;

[0016] 2) The utility model is provided with a concrete base and column foot anchor bolts, which, on the one hand, is conducive to expanding the force-bearing area of ​​the column bottom, and on the other hand, is fixedly connected to the basement floor through the column foot anchor bolts;

[0017] 3) The utility model further fixes and connects the inner column to the basement floor through the arrangement of the inner column vertical reinforcement, thereby improving the integrated connectivity.

[0018] Other features and advantages of the utility model will be described in the subsequent description, and in part will become apparent from the description, or be understood by implementing the utility model; the main purpose and other advantages of the utility model can be realized and obtained through the solutions particularly pointed out in the description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the beam-column node structure of the steel structure including the basement;

[0020] Figure 2 It is a schematic diagram of the connection structure between the anchor plate and the anchor bar;

[0021] Figure 3 It is a schematic diagram of the connection structure between the inner column and the outer column base;

[0022] Figure 4 It is a cross-sectional view of the inner columns, outer columns and their connection structure.

[0023] Figure numbers: 1-outer column, 2-inner column, 3-frame beam, 4-inclined beam, 5-butting plate, 6-reserved stirrup holes, 7-anchor plate, 8-anchor bars, 9-bolts, 10-inner column stirrups, 11-inner column vertical bars, 12-concrete base, 13-column foot anchor bolts, 14-basement floor, 15-basement column, 16-inner column tension bars. DETAILED DESCRIPTION

[0024] Take a certain Internet industrial park project as an example. It consists of 4 industrial R&D and test buildings and 1 conference and exhibition center. The main structure of the project is a steel structure, which is supported and connected by circular steel pipe columns. In the basement, the circular steel pipe columns are also wrapped with square reinforced concrete columns. Figures 1 to 4 ,right

[0025] The node structure of the steel structure beam and column of the basement is designed and installed. The node structure includes an inner column 2 connected to the basement, an outer column 1 connected to the outer periphery of the inner column 2, a frame beam 3 connected to the inner column 2 horizontally and located on the first floor of the structure, a butt plate 5 connected between the inner column 2 and the frame beam 3, an anchor plate 7 connected between the top of the butt plate 5 and the frame beam 3, an anchor bar 8 connected to the bottom of the anchor plate 7, a concrete base 12 connected to the bottom of the inner column 2, a column foot anchor bolt 13 connecting the concrete base 12 and the basement floor slab 14, and a basement column 15 arranged below the basement floor slab 14 and directly below the inner column 2.

[0026] In this embodiment, an inclined beam 4 is also connected to the inner corner where the frame beam 3 and the anchor plate 7 are connected. The inclined beam 4 is an I-beam, and one side of the connecting end is welded to the inner column 2 and the other side is welded to the anchor plate 7.

[0027] In this embodiment, the inner column 2 is a circular column, and bolts 9 are arranged at intervals on the column body; the bottom of the inner column 2 is connected to the circular bottom plate; the diameter of the circular bottom plate is larger than the diameter of the inner column 2. A truncated cone-shaped concrete base 12 is arranged below the circular bottom plate, and column foot anchor bolts 13 are arranged at intervals on the circular bottom plate. The column foot anchor bolts 13 are J-shaped, and the top is fixed to the top of the circular bottom plate by nuts, and the lower vertical part passes through the circular bottom plate, the concrete base 12 and reaches the basement floor 14.

[0028] In this embodiment, the docking plate 5 is an inverted T-shaped plate, the top of which is welded to the bottom of the anchor plate 7; a reserved stirrup hole 6 is also provided on the upper part of the docking plate 5; a rib plate is also provided in the upper middle part of the docking plate 5; the rib plate connects the docking plate 5 and the inner column 2.

[0029] In this embodiment, the length of the anchor plate 7 is greater than the length of the inclined beam 4 designed to connect the frame beam 3, and anchor bars 8 are arranged in a mesh shape on the anchor plate 7; the anchoring length of the anchor bars 8 is greater than half the height of the frame beam 3.

[0030] In this embodiment, the inner column 2 is vertically provided with square inner column stirrups 10 corresponding to the outer column 1, and the inner side of the inner column stirrups 10 is connected with the inner column vertical reinforcements 11 arranged in a ring shape; the bottom of the inner column vertical reinforcement 11 is L-shaped, and its horizontal part is arranged in the basement floor 14. The inner column tie bars 16 are also arranged at the horizontal upward corners of the inner column stirrups 10, and the inner column tie bars 16 are arranged obliquely and enclosed with the inner column stirrups 10 to form a triangle.

[0031] The above description is only a preferred specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that a technician familiar with the technical field thinks of within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A beam-column node structure containing a basement steel structure, characterized in that: The invention comprises an inner column (2) connected to the basement, an outer column (1) connected to the outer periphery of the inner column (2), a frame beam (3) connected to the inner column (2) in the horizontal direction and located at the first floor of the structure, a butt joint plate (5) connected between the inner column (2) and the frame beam (3), an anchor plate (7) connected between the top of the butt joint plate (5) and the frame beam (3), an anchor bar (8) connected to the bottom of the anchor plate (7), a concrete base (12) connected to the bottom of the inner column (2), a column foot anchor bolt (13) passing through and connecting the concrete base (12) and the basement floor (14), and a basement column (15) arranged below the basement floor (14) and located directly below the inner column (2).

2. A beam-column node structure with a basement steel structure as claimed in claim 1, characterized in that: The inner column (2) is a circular column, and bolts (9) are arranged at intervals on the column body; the bottom of the inner column (2) is connected to a circular bottom plate; and the diameter of the circular bottom plate is greater than the diameter of the inner column (2).

3. A beam-column node structure with a basement steel structure as claimed in claim 2, characterized in that: A truncated cone-shaped concrete base (12) is arranged below the circular base plate, and column foot anchor bolts (13) are arranged at intervals on the circular base plate.

4. A beam-column node structure with a basement steel structure as claimed in claim 3, characterized in that: The column foot anchor bolt (13) is J-shaped, with the top portion being fixed to the top of the circular base plate by a nut, and the lower vertical portion passing through the circular base plate, the concrete base (12) and the basement base plate (14).

5. A beam-column node structure with a basement steel structure as claimed in claim 1, characterized in that: The inner corner where the frame beam (3) and the anchor plate (7) are connected is also connected to an inclined beam (4), wherein the inclined beam (4) is an I-beam, one side of the connecting end of which is welded to the inner column (2) and the other side is welded to the anchor plate (7).

6. A beam-column node structure with a basement steel structure as claimed in claim 1, characterized in that: The butt joint plate (5) is an inverted T-shaped plate, the top of which is welded to the bottom of the anchor plate (7); a reserved stirrup hole (6) is also provided on the upper part of the butt joint plate (5); a rib plate is also provided in the middle and upper part of the butt joint plate (5); and the rib plate connects the butt joint plate (5) and the inner column (2).

7. A beam-column node structure with a basement steel structure as claimed in claim 1, characterized in that: The length of the anchor plate (7) is greater than the length of the inclined beam (4) designed to connect the frame beam (3), and anchor bars (8) are arranged in a mesh shape on the anchor plate (7); the anchoring length of the anchor bars (8) is greater than half the beam height of the frame beam (3).

8. The beam-column node structure of a basement steel structure as claimed in claim 1, characterized in that: The inner column (2) is provided with square inner column stirrups (10) at intervals corresponding to the outer column (1) in the vertical direction, and the inner side of the inner column stirrups (10) is connected to inner column vertical bars (11) arranged in a ring shape; the bottom of the inner column vertical bars (11) is L-shaped, and its horizontal part is arranged in the basement floor (14).

9. A beam-column node structure with a basement steel structure as claimed in claim 8, characterized in that: The inner column stirrups (10) are further provided with inner column tension bars (16) at the horizontally upward corners. The inner column tension bars (16) are arranged obliquely to form a triangle with the inner column stirrups (10).

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