Steel structure connecting joint

Abstract

The utility model provides a steel structure connecting node which comprises a steel column, a box-shaped steel beam, a box-shaped steel beam stiffening plate and an H-shaped steel beam. One end of the box-shaped steel beam is welded and fixed with the steel column; the upper and lower flanges of the other end of the box-shaped steel beam are welded and fixed with the upper and lower flanges of the H-shaped steel beam; one end of the box-shaped steel beam stiffening plate extends into the box-shaped steel beam and is fixedly welded with the box-shaped steel beam, and the other end of the box-shaped steel beam stiffening plate extends to the web plate position of the H-shaped steel beam and is fixedly connected with the web plate of the H-shaped steel beam. According to the utility model, the box-shaped section has higher torsion resistance than the H-shaped steel section, and the box-shaped section is adopted at the end part of the H-shaped steel beam to be connected with the steel column, so that the torsion resistance of the end part of the H-shaped steel beam is improved, the constraint state of the flange of the H-shaped steel beam is improved, and the instability resistance of the end part of the H-shaped steel beam is improved.

Description

Technical Field

[0001] The utility model relates to a steel beam connection node, in particular to a steel structure connection node. Background Art

[0002] When the existing H-beam is connected to the steel column, in order to meet the bearing capacity and seismic requirements, the flange of the H-beam is usually widened. However, due to the widening of the flange of the H-beam, when the load is too large, it is easy to cause local instability at the end of the H-beam. Utility Model Content

[0003] In view of the defects in the prior art, the utility model provides a steel structure connection node, which can effectively solve the above problems.

[0004] The technical solution adopted by the utility model is as follows:

[0005] The utility model provides a steel structure connection node, comprising a steel column (1), a box-shaped steel beam (2), a box-shaped steel beam stiffening plate (3) and an H-shaped steel beam (4);

[0006] One end of the box-shaped steel beam (2) is welded and fixed to the steel column (1); the upper and lower flanges of the other end of the box-shaped steel beam (2) are welded and fixed to the upper and lower flanges of the H-shaped steel beam (4); one end of the box-shaped steel beam stiffening plate (3) extends into the interior of the box-shaped steel beam (2) and is welded and fixed to the box-shaped steel beam (2), and the other end of the box-shaped steel beam stiffening plate (3) extends to the web position of the H-shaped steel beam (4) and is fixed to the web of the H-shaped steel beam (4).

[0007] Preferably, the number of the box-type steel beam stiffening plate (3) provided is at least one.

[0008] Preferably, the box-shaped steel beam stiffening plate (3) and the web plate of the H-shaped steel beam (4) are connected and fixed by high-strength bolts (5).

[0009] Preferably, bolt holes are pre-opened on the web of the H-shaped steel beam (4).

[0010] Preferably, the box-shaped steel beam stiffening plate (3) and the web plate of the H-shaped steel beam (4) are fixed by welding.

[0011] Preferably, one end of the box-type steel beam stiffening plate (3) extends to the position of the steel column (1) and is welded and fixed to the steel column (1).

[0012] The utility model provides a steel structure connection node with the following advantages:

[0013] The utility model utilizes the box section to have higher torsion resistance than the H-shaped steel section, adopts the box section to connect with the steel column at the end of the H-shaped steel beam, improves the torsion resistance of the end of the H-shaped steel beam, improves the restraint state of the flange of the H-shaped steel beam, and improves the anti-instability ability of the end of the H-shaped steel beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional structural schematic diagram of a steel structure connection node provided by the utility model;

[0015] Figure 2 A cross-sectional view of a steel structure connection node provided by the utility model;

[0016] Figure 3 for Figure 2 Section along AA;

[0017] Figure 4 A connection diagram of a box-shaped steel beam and a box-shaped steel beam stiffening plate provided by the utility model;

[0018] Figure 5 for Figure 4 Section along BB;

[0019] Figure 6 for Figure 4 Section along CC;

[0020] Figure 7 The structural diagram of the box-type steel beam stiffening plate provided by the utility model;

[0021] Figure 8 A structural diagram of an H-shaped steel beam provided by the utility model;

[0022] Fig. 9 for Figure 8 Section along DD.

[0023] Among them: 1 is a steel column, 2 is a box-type steel beam, 3 is a box-type steel beam stiffening plate, 4 is an H-type steel beam, and 5 is a high-strength bolt. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] The utility model provides a steel structure connection node, which changes the end connection form of the H-shaped steel beam, can not only meet the bearing capacity and earthquake resistance requirements, but also greatly improve the anti-instability ability of the H-shaped steel beam end.

[0026] Specifically, the utility model utilizes the box section that has higher torsional resistance than the H-shaped steel section, and adopts the box section to connect with the steel column at the end of the H-shaped steel beam, thereby improving the torsional resistance of the end of the H-shaped steel beam, improving the constraint state of the flange of the H-shaped steel beam, and improving the anti-instability ability of the end of the H-shaped steel beam.

[0027] refer to Figures 1 to 9 , the utility model provides a steel structure connection node, including a steel column 1, a box-shaped steel beam 2, a box-shaped steel beam stiffening plate 3 and an H-shaped steel beam 4;

[0028] One end of the box-shaped steel beam 2 is welded and fixed to the steel column 1; the upper and lower flanges of the other end of the box-shaped steel beam 2 are welded and fixed to the upper and lower flanges of the H-shaped steel beam 4; one end of the box-shaped steel beam stiffener 3 extends into the interior of the box-shaped steel beam 2 and is welded and fixed to the box-shaped steel beam 2, and the other end of the box-shaped steel beam stiffener 3 extends to the web position of the H-shaped steel beam 4 and is fixed to the web of the H-shaped steel beam 4. Specifically, two fixing methods can be adopted. The first is bolt fixing: the box-shaped steel beam stiffener 3 and the web of the H-shaped steel beam 4 are connected and fixed with high-strength bolts 5. Bolt holes are pre-opened in the web of the H-shaped steel beam 4 to facilitate construction and installation. The second is welding fixing: the box-shaped steel beam stiffener 3 and the web of the H-shaped steel beam 4 are welded and fixed.

[0029] In the present application, depending on the stress conditions, the box-type steel beam stiffening plate 3 and the steel column 1 may be connected and fixed, or may not be connected and fixed. If connected and fixed, one end of the box-type steel beam stiffening plate 3 extends to the position of the steel column 1 and is welded and fixed to the steel column 1.

[0030] In the present application, the number of the box-type steel beam stiffening plate 3 is at least one, and the specific number is determined according to the stress conditions.

[0031] An embodiment is introduced below: one end of the box steel beam 2 is welded to the steel column 1 by equal strength groove welding, and the upper and lower flanges of the other end of the box steel beam 2 are welded to the upper and lower flanges of the H-shaped steel beam 4 by equal strength groove welding, and at the same time, one end of the box steel beam stiffening plate 3 extends into the interior of the box steel beam 2 and is welded and fixed to the box steel beam 2, and the other end of the box steel beam stiffening plate 3 extends to the web position of the H-shaped steel beam 4 and is connected to the web of the H-shaped steel beam 4 by high-strength bolts. Under the same load, the anti-instability ability of the end of the H-shaped steel beam 4 is greatly improved. In addition, the flange of the H-shaped steel beam 4 is originally a cantilever structure. By adding the box steel beam stiffening plate 3, the H-shaped steel beam 4 has a supporting effect, thereby improving the constraint state of the flange of the H-shaped steel beam and further improving the anti-instability ability of the end of the H-shaped steel beam.

[0032] The welding of the box steel beam 2 and the steel column 1 can be processed in advance in the factory, and the welding quality can be effectively guaranteed; at the same time, the connection between the box steel beam 2 and the H-shaped steel beam 4 is the same as the connection between ordinary H-shaped steel beams. At the construction site, the construction efficiency of the box steel beam 2 and the H-shaped steel beam 4 is the same, so this structure will not affect the construction efficiency, but the end of the H-shaped steel beam 4 has greatly improved anti-instability ability.

[0033] It should be noted that the present application does not restrict the thickness of the upper and lower flanges of the box-type steel beam, the thickness of the web of the H-type steel beam, the thickness of the box-type steel beam stiffening plates, and the number of box-type steel beam stiffening plates, which can be specifically set according to the load conditions.

[0034] In actual applications, the roof of a gymnasium collapsed due to the instability of the H-shaped steel beam, causing heavy casualties and accidents, and also bringing adverse effects to the society. The H-shaped steel beam with a box beam at the end of the present invention can increase the stability of the H-shaped steel beam end and avoid similar accidents.

[0035] In summary, the utility model utilizes the box section to have higher torsional resistance than the H-shaped steel section, adopts the box section to connect with the steel column at the end of the H-shaped steel beam, improves the torsional resistance of the end of the H-shaped steel beam, improves the constraint state of the flange of the H-shaped steel beam, and improves the anti-instability ability of the end of the H-shaped steel beam.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. A steel structure connection node, characterized in that: It comprises a steel column (1), a box-shaped steel beam (2), a box-shaped steel beam stiffening plate (3) and an H-shaped steel beam (4); One end of the box-shaped steel beam (2) is welded and fixed to the steel column (1); the upper and lower flanges of the other end of the box-shaped steel beam (2) are welded and fixed to the upper and lower flanges of the H-shaped steel beam (4); one end of the box-shaped steel beam stiffening plate (3) extends into the interior of the box-shaped steel beam (2) and is welded and fixed to the box-shaped steel beam (2), and the other end of the box-shaped steel beam stiffening plate (3) extends to the web position of the H-shaped steel beam (4) and is fixed to the web of the H-shaped steel beam (4).

2. A steel structure connection node according to claim 1, characterized in that: The number of the box-shaped steel beam stiffening plate (3) provided is at least one.

3. A steel structure connection node according to claim 1, characterized in that: The box-shaped steel beam stiffening plate (3) and the web plate of the H-shaped steel beam (4) are connected and fixed by high-strength bolts (5).

4. A steel structure connection node according to claim 3, characterized in that: Bolt holes are pre-opened on the web of the H-shaped steel beam (4).

5. A steel structure connection node according to claim 1, characterized in that: The box-shaped steel beam stiffening plate (3) and the web plate of the H-shaped steel beam (4) are welded and fixed.

6. A steel structure connection node according to claim 1, characterized in that: One end of the box-shaped steel beam stiffening plate (3) extends to the position of the steel column (1) and is welded and fixed to the steel column (1).

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