Support and steel beam connection node reinforcing structure

Abstract

The invention provides a support and steel beam connecting joint reinforcing structure which comprises a steel column, a steel beam, a steel support, a steel column transverse stiffening rib welded to the inner wall of the steel column, a steel beam vertical stiffening rib welded to the inner wall of the steel beam and a support inclined stiffening rib welded to the inner wall of the support, and the inclined stiffening rib is additionally arranged at the connecting position of the steel beam and the support. The oblique stiffening ribs are arranged on the steel beam, so that the shear strength of the steel beam can be improved. The inclined stiffening ribs and the vertical stiffening ribs can be made into standard parts, so that the welding workload is reduced. The inclined stiffening ribs can be arranged along the support upper flange, can also be arranged along the support lower flange, and can also be jointly arranged along the support upper flange and the support lower flange. The vertical stiffening ribs and the inclined stiffening ribs are arranged on the steel beams at the junctions of the steel beams and the supports, so that the shear strength of the steel beams is improved, and the bearing capacity and ductility performance of the structure are fully exerted.

Description

Technical Field

[0001] The invention belongs to the field of construction engineering, and in particular relates to a support and steel beam connection node reinforcement structure. Background Art

[0002] Steel structure has been widely used in construction projects due to its advantages such as good mechanical performance, environmental protection and fast construction speed. Frame structure is a basic form of steel structure. Usually, supports or shear walls are arranged in the frame to enhance the frame's lateral and seismic resistance. For the arrangement of supports, herringbone braces are widely used because they are conducive to the opening of door and window openings. Figure 1-2 As shown, the conventional support and steel frame connection node of the prior art includes a steel column 1, a steel beam 2, a steel support 3, a steel column transverse stiffening rib 4 welded on the inner wall of the steel column 1, a steel beam vertical stiffening rib 5 welded on the inner wall of the steel beam 2, and a support oblique stiffening rib 6 welded on the inner wall of the support 3. Under the lateral load of the herringbone brace-steel frame, the compression brace of the herringbone brace will first buckle and lose part of its bearing capacity, while the tension brace can continue to bear the load, which will generate vertical unbalanced force on the beam and cause premature damage to the structure. Therefore, it is necessary to strengthen the steel beam to improve its shear resistance.

[0003] Therefore, in order to solve the problem that the herringbone-steel frame may generate vertical unbalanced force during loading and thus cause premature structural damage, it is necessary to invent a support and steel beam strengthening connection node to increase the shear strength of the steel beam and improve the ductility performance of the structure. Summary of the invention

[0004] In order to solve the problems existing in the technical background, the present invention provides a support and steel beam connection node reinforcement structure to solve the problem that the herringbone brace-steel frame may generate vertical unbalanced force during the loading process, thereby causing premature damage to the structure.

[0005] To achieve the above object, the present invention provides the following technical solutions: The strengthening structure of the connection node between the support and the steel beam includes steel columns, steel beams, steel supports, transverse stiffening ribs of the steel columns welded on the inner walls of the steel columns, vertical stiffening ribs of the steel beams welded on the inner walls of the steel beams, diagonal stiffening ribs of the supports welded on the inner walls of the supports, and diagonal stiffening ribs are added at the connection between the steel beams and the supports.

[0006] Furthermore, the oblique stiffening ribs include a first oblique stiffening rib added along the upper flange direction of the steel beam or a second oblique stiffening rib added along the lower flange direction of the steel beam.

[0007] Furthermore, the oblique stiffening ribs include a first oblique stiffening rib added along the upper flange direction of the steel beam and a second oblique stiffening rib added along the lower flange direction of the steel beam.

[0008] Furthermore, the web of the steel beam is located between the upper flange of the steel beam and the lower flange of the steel beam.

[0009] Furthermore, the oblique stiffening rib supports add oblique stiffening ribs along the direction of the upper flange of the support or the oblique stiffening ribs along the direction of the lower flange of the support.

[0010] Furthermore, the oblique stiffening rib supports increase the oblique stiffening ribs along the direction of the upper flange of the support and the oblique stiffening ribs along the direction of the lower flange of the support.

[0011] Furthermore, a supporting web is located between the supporting upper flange and the supporting lower flange.

[0012] Furthermore, the inclination angle of the oblique stiffener is determined according to the spacing between the vertical stiffeners of the steel beam.

[0013] Furthermore, the thickness of the oblique stiffening ribs in the steel beam is determined according to the thickness of the vertical stiffening ribs of the steel beam welded on the inner wall of the steel beam.

[0014] Compared with the prior art, the beneficial effects of the present invention are: based on the concept of enhancing the shear strength of the intersection of steel beams and supports, the present invention adds oblique stiffening ribs on the steel beams, which can at least achieve the following effects: at the intersection of the steel beams and supports, not only vertical stiffening ribs are arranged on the steel beams, but also oblique stiffening ribs are arranged on the steel beams, thereby improving the shear strength of the steel beams and giving full play to the bearing capacity and ductility of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a schematic diagram of the connection between the support and the steel frame of the prior art; Figure 2 for Figure 1 Section A: Sectional view; Figure 3 This is a diagram of a conventional connection node structure of Embodiment 1; Figure 4 This is a structural diagram of the upper flange reinforcement connection node of Example 1; Figure 5 The following is a structural diagram of the flange reinforcement connection node of the embodiment; Figure 6 This is a structural diagram of the flange reinforced connection node of Example 1; Figure 7 This is a traditional connection node structure diagram of Example 2; Figure 8 Example 2 upper flange reinforcement connection node structure diagram; Fig. 9 This is a structural diagram of the lower flange reinforcement connection node of Example 2; Fig.10This is a structural diagram of the flange reinforced connection node of Example 2.

[0017] The markings in the figure are as follows: 1. Steel column; 2. Steel beam; 3. Steel support; 4. Horizontal stiffening ribs of steel column; 5. Vertical stiffening ribs of steel beam; 6. Diagonal stiffening ribs of support; 7. Diagonal stiffening ribs of steel beam; 21. Upper flange of steel beam; 22. Web of steel beam; 23. Lower flange of steel beam; 31. Upper flange of support; 32. Web of support; 33. Lower flange of support; 71. First diagonal stiffening rib; 72. Second diagonal stiffening rib. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Example 1 like Figure 3-6 As shown, this embodiment provides a support and steel beam connection node reinforcement structure, including a steel column 1, a steel beam 2, a steel support 3, a steel column transverse stiffening rib 4 welded on the inner wall of the steel column 1, a steel beam vertical stiffening rib 5 welded on the inner wall of the steel beam 2, a support oblique stiffening rib 6 welded on the inner wall of the support 3, and an oblique stiffening rib 7 is added at the connection between the steel beam 2 and the support 3. The steel beam web 22 is located between the steel beam upper flange 21 and the steel beam lower flange 23; the support web 33 is located between the support upper flange 31 and the support lower flange 33.

[0020] Based on the traditional connection node, add oblique stiffening ribs 7 at the connection between the steel beam and the support. Figure 4 To provide support, a first oblique stiffening rib 71 is added along the upper flange direction. Figure 5 To provide support, a second oblique stiffening rib 72 is added along the lower flange direction. Figure 6 For support, first oblique stiffening ribs 71 and second oblique stiffening ribs 71 are added along the upper and lower flanges. The inclination angle of the oblique stiffening ribs is determined according to the spacing of the transverse stiffening ribs of the steel beam.

[0021] At the intersection of the steel beam and the support, not only vertical stiffening ribs but also oblique stiffening ribs are set on the steel beam to improve the shear strength of the steel beam and give full play to the bearing capacity and ductility of the structure.

[0022] Example 2 like Figure 7-10As shown, this embodiment provides a support and steel beam connection node reinforcement structure, including a steel column 1, a steel beam 2, a steel support 3, a steel column transverse stiffening rib 4 welded on the inner wall of the steel column 1, a steel beam vertical stiffening rib 5 welded on the inner wall of the steel beam 2, a support oblique stiffening rib 6 welded on the inner wall of the support 3, and an oblique stiffening rib 7 is added at the connection between the steel beam 2 and the support 3. The steel beam web 22 is located between the steel beam upper flange 21 and the steel beam lower flange 23; the support web 33 is located between the support upper flange 31 and the support lower flange 33.

[0023] Based on the traditional connection node 2, an oblique stiffening rib 7 is added at the connection between the steel beam and the support. Figure 4 To provide support, add oblique stiffening ribs 71 along the upper flange direction. Figure 5 To provide support, add oblique stiffening ribs 72 along the lower flange. Figure 6 For support, the first oblique stiffening rib 71 and the second oblique stiffening rib 71 are added in both directions of the upper and lower flanges. The inclination angle of the oblique stiffening rib is determined according to the spacing of the transverse stiffening ribs of the steel beam; the thickness of the oblique stiffening rib 7 in the steel beam 2 is determined according to the thickness of the vertical stiffening rib 5 of the steel beam welded on the inner wall of the steel beam 2.

[0024] Setting oblique stiffening ribs on the steel beam can improve the shear strength of the steel beam.

[0025] The oblique stiffening ribs can be made into standard parts with the vertical stiffening ribs to reduce the welding workload.

[0026] The oblique stiffening ribs may be arranged along the upper flange of the support, along the lower flange of the support, or along both the upper and lower flanges of the support.

[0027] In summary, the present invention is based on the concept of enhancing the shear strength of the intersection of steel beams and supports, and by adding oblique stiffening ribs to the steel beams, at least the following effects can be achieved: at the intersection of the steel beams and the supports, not only vertical stiffening ribs but also oblique stiffening ribs are provided on the steel beams, thereby improving the shear strength of the steel beams and giving full play to the bearing capacity and ductility of the structure.

[0028] The above contents are merely examples of the structure of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the present invention or exceed the scope defined by the claims, they shall all fall within the protection scope of the present invention.

Claims

1. A support and steel beam connection node reinforcement structure, comprising a steel column (1), a steel beam (2), a steel support (3), a steel column transverse stiffening rib (4) welded to the inner wall of the steel column (1), a steel beam vertical stiffening rib (5) welded to the inner wall of the steel beam (2), and a support oblique stiffening rib (6) welded to the inner wall of the support (3), characterized in that: An oblique stiffening rib (7) is added at the connection between the steel beam (2) and the support (3).

2. The support and steel beam connection node reinforcement structure according to claim 1 is characterized in that: The oblique stiffening ribs (7) are provided by adding first oblique stiffening ribs (71) along the direction of the upper flange (21) of the steel beam, or by supporting the addition of second oblique stiffening ribs (72) along the direction of the lower flange (23) of the steel beam.

3. The support and steel beam connection node reinforcement structure according to claim 1, characterized in that: The oblique stiffening ribs (7) are provided with first oblique stiffening ribs (71) along the direction of the upper flange (21) of the steel beam and support the addition of second oblique stiffening ribs (72) along the direction of the lower flange (23) of the steel beam.

4. The support and steel beam connection node reinforcement structure according to claim 3 is characterized in that: The steel beam web (22) is located between the steel beam upper flange (21) and the steel beam lower flange (23).

5. The support and steel beam connection node reinforcement structure according to claim 1, characterized in that: The oblique stiffening ribs (7) support the addition of oblique stiffening ribs (71) along the direction of the support upper flange (31) or support the addition of oblique stiffening ribs (72) along the direction of the support lower flange (33).

6. The support and steel beam connection node reinforcement structure according to claim 1, characterized in that: The oblique stiffening ribs (7) support the addition of oblique stiffening ribs (71) along the direction of the support upper flange (31) and support the addition of oblique stiffening ribs (72) along the direction of the support lower flange (33).

7. The support and steel beam connection node reinforcement structure according to claim 3, characterized in that: A supporting web (33) is located between the supporting upper flange (31) and the supporting lower flange (33).

8. The support and steel beam connection node reinforcement structure according to claim 1, characterized in that: The inclination angle of the oblique stiffening rib (7) is determined according to the spacing of the vertical stiffening ribs (5) of the steel beam.

9. The support and steel beam connection node reinforcement structure according to claim 1, characterized in that: The thickness of the oblique stiffening rib (7) in the steel beam (2) is determined according to the thickness of the steel beam vertical stiffening rib (5) welded to the inner wall of the steel beam (2).

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