Upper-portion-extending-type end plate step lapping steel beam connecting joint

Abstract

The utility model discloses an end plate step lapping steel beam connecting joint with an outwards-extending upper part, which is matched with a connecting node of a steel column and can be conveniently and better combined with the steel column, so that the mounting difficulty is greatly reduced, and the problems caused by too small contact area are solved. The rear end plate is vertically arranged at the end of the steel beam, the front end plate and the rear end plate are arranged in parallel, a plurality of first connecting holes and second connecting holes are horizontally formed in the front end plate and the rear end plate respectively, the vertical plate is vertically arranged between the front end plate and the rear end plate, and an upper horizontal supporting plate and a lower horizontal supporting plate are horizontally arranged at the upper end and the lower end of the vertical plate respectively. A plurality of third connecting holes are vertically formed in the lower horizontal supporting plate, the upper end face of the front end plate is higher than the upper side face of the upper horizontal supporting plate, the lower end face of the rear end plate is lower than the lower side face of the lower horizontal supporting plate, and the lower end face of the rear end plate is flush with the lower end face of the steel beam; the utility model can be widely applied to the field of fabricated buildings.

Description

Technical Field

[0001] The utility model relates to an upper outrigger end - plate stepped steel beam connection joint, belonging to the technical field of prefabricated buildings. Background Art

[0002] The design of prefabricated buildings adopts standardized and modular methods, which is convenient for large - scale production and construction. Although the initial investment may be relatively high, in the long run, it has good economic efficiency due to advantages such as fast construction speed and low maintenance cost, promoting the transformation of the construction industry towards industrialization and informatization, and improving the overall technical level and production efficiency of the construction industry. Prefabricated buildings use prefabricated processing, and components are prefabricated in the factory, with more stringent quality control, reducing the uncertainty of on - site construction. Only assembly is required on - site, greatly shortening the construction period, reducing the noise, dust and construction waste generated during on - site construction. Moreover, prefabricated components reduce material waste and improve the utilization rate of materials. Since a large amount of work is completed in the factory, the labor required for on - site construction is reduced.

[0003] Steel has high strength and toughness, can bear greater loads, is suitable for large - span and high - rise buildings, and can better withstand the impact of natural disasters such as earthquakes. Steel columns can provide a larger column - free space, improving the flexibility of building use.

[0004] The steel columns are connected through joints, and at the same time, this connection joint also serves as the connection joint between the steel column and the steel beam. Therefore, the structure of this connection joint plays a crucial role in the connection process of the steel column and the steel beam.

[0005] Currently, there are beam - column joints used in prefabricated steel structures. Adopting this connection method has many advantages such as high assembly degree, fast construction speed, and high safety. When using this connection joint, during the installation of the steel frame, the crane assembles the steel beam on the outrigger step of the steel column, and the construction workers insert the bolts into the corresponding positions, then the installation operation of the crane can be released, greatly improving the installation efficiency of the crane. However, it is found during use that the connection contact area between the steel column and the steel beam is relatively small, which may lead to insufficient stiffness and bearing capacity of the beam - column joint, unable to effectively transfer the load, affecting the stability and safety of the entire structure. At the same time, the small contact area will cause stress concentration, increasing the local stress of the connecting parts or materials, and the joint deformation is relatively large, thus increasing the risk of failure. In addition, the insufficient contact area will also affect the durability and service life of the connection, especially in the case of bearing repeated loads or dynamic loads. Moreover, the small contact area may make the installation of the connecting parts more difficult, requiring higher construction accuracy and process requirements. Summary of the Utility Model

[0006] The utility model overcomes the deficiencies of the prior art and provides an upper extended end - plate stepped steel - beam connection joint, which matches the connection node of a steel column, is convenient to be better combined with the steel column, greatly reduces the installation difficulty, and solves the problems caused by too small contact area and the problem of construction assembly speed.

[0007] To solve the above - mentioned technical problems, the technical solution adopted by the utility model is as follows: An upper extended end - plate stepped steel - beam connection joint includes a vertical plate, an upper horizontal support plate, a lower horizontal support plate, a front end - plate, a rear end - plate and a steel beam. The rear end - plate is vertically arranged at the end of the steel beam. The front end - plate and the rear end - plate are arranged in parallel. A plurality of first connection holes and second connection holes are respectively and horizontally arranged on the front end - plate and the rear end - plate. The front end - plate is connected to the connection node of the steel column through bolts passing through the first connection holes. The vertical plate is vertically arranged between the front end - plate and the rear end - plate. The upper and lower ends of the vertical plate are respectively horizontally provided with an upper horizontal support plate and a lower horizontal support plate. A plurality of third connection holes are vertically arranged on the lower horizontal support plate. The lower horizontal support plate is connected to the connection node of the steel column through bolts passing through the third connection holes; the upper end face of the front end - plate is higher than the upper side face of the upper horizontal support plate, the lower end face of the rear end - plate is lower than the lower side face of the lower horizontal support plate, and the lower end face of the rear end - plate is flush with the lower end face of the steel beam.

[0008] Further, the rear end - plate is welded and fixed at the end of the steel beam.

[0009] Further, the vertical plate, the upper horizontal support plate, the lower horizontal support plate, the front end - plate and the rear end - plate are welded into a whole.

[0010] Further, the diameters of the first connection holes and the second connection holes are larger than the diameter of the third connection hole.

[0011] Further, the number of both the first connection holes and the second connection holes is four, and the number of the third connection holes is six.

[0012] Further, two of the first connection holes are located above the upper horizontal support plate, and all four of the second connection holes are located above the lower end face of the steel beam, and the second connection holes are all located below the lower horizontal support plate.

[0013] Further, the upper side face of the upper horizontal support plate is flush with the upper end face of the steel beam.

[0014] The beneficial effects of the present utility model compared with the prior art are as follows: After welding the vertical plate, upper horizontal support plate, lower horizontal support plate, front end plate and rear end plate into a module, the rear end plate is welded to the end of the steel beam. Among them, the first connection hole, the second connection hole and the third connection hole are respectively arranged on the front end plate, the rear end plate and the lower horizontal support plate. After matching with the connection nodes of the corresponding steel columns, they are bolted and fixed together. The present utility model is used in cooperation with the connection nodes of the steel columns, correspondingly increasing the contact area of the front end plate, the rear end plate and the lower horizontal support plate, meeting the usage requirements of different positions of the connection nodes of the steel columns, and improving the flexibility of the installation of the steel columns and the steel beams. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present utility model will be further described below with reference to the accompanying drawings.

[0016] Figure 1 It is a schematic structural diagram of the present utility model.

[0017] Figure 2 It is a schematic front view installation structure diagram of the present utility model.

[0018] Figure 3 It is a schematic three-dimensional installation structure diagram of the present utility model.

[0019] Figure 4 It is a schematic structural diagram of the vertical plate, upper horizontal support plate, lower horizontal support plate, front end plate and rear end plate of the present utility model after being welded into a module.

[0020] In the figure: 1, vertical plate; 2, upper horizontal support plate; 3, lower horizontal support plate; 4, front end plate; 5, rear end plate; 6, first connection hole; 7, second connection hole; 8, steel column; 9, connection node; 10, steel beam; 11, third connection hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The present utility model will be further described below in conjunction with specific embodiments.

[0022] Such as Figures 1 to 4As shown in the figure, a connecting joint of an upper externally extended end plate stepped steel beam of the present utility model includes a vertical plate 1, an upper horizontal supporting plate 2, a lower horizontal supporting plate 3, a front end plate 4, a rear end plate 5 and a steel beam 10. The vertical plate 1, the upper horizontal supporting plate 2, the lower horizontal supporting plate 3, the front end plate 4 and the rear end plate 5 are welded into a whole. The rear end plate 5 is vertically welded to the end of the steel beam 10. The front end plate 4 and the rear end plate 5 are arranged in parallel. A plurality of first connection holes 6 and second connection holes 7 are respectively horizontally arranged on the front end plate 4 and the rear end plate 5. The front end plate 4 is connected to the connection node 9 of the steel column 8 by bolts passing through the first connection holes 6. The vertical plate 1 is vertically arranged between the front end plate 4 and the rear end plate 5. The upper horizontal supporting plate 2 and the lower horizontal supporting plate 3 are respectively horizontally arranged at the upper and lower ends of the vertical plate 1. A plurality of third connection holes 11 are vertically arranged on the lower horizontal supporting plate 3. The lower horizontal supporting plate 3 is connected to the connection node 9 of the steel column 8 by bolts passing through the third connection holes 11. The upper end face of the front end plate 4 is higher than the upper side face of the upper horizontal supporting plate 2. The lower end face of the rear end plate 5 is lower than the lower side face of the lower horizontal supporting plate 3, and the lower end face of the rear end plate 5 is flush with the lower end face of the steel beam 10. The aperture diameters of the first connection holes 6 and the second connection holes 7 are larger than the aperture diameter of the third connection hole 11. The number of both the first connection holes 6 and the second connection holes 7 is four, and the number of the third connection holes 11 is six. Two of the first connection holes 6 are located above the upper horizontal supporting plate 2. All four of the second connection holes 7 are located above the lower end face of the steel beam 10, and the second connection holes 7 are all located below the lower horizontal supporting plate 3. The upper side face of the upper horizontal supporting plate 2 is flush with the upper end face of the steel beam 10.

[0023] After the vertical plate 1, the upper horizontal supporting plate 2, the lower horizontal supporting plate 3, the front end plate 4 and the rear end plate 5 of the present utility model are welded into a module, the rear end plate 5 is then welded to the end of the steel beam 10. Among them, the first connection holes 6, the second connection holes 7 and the third connection holes 11 are respectively arranged on the front end plate 4, the rear end plate 5 and the lower horizontal supporting plate 3. After being matched with the corresponding connection node 9 of the steel column 8, they are connected and fixed together with bolts. The present utility model is used in cooperation with the connection node 9 of the steel column 8, correspondingly increasing the contact area of the front end plate 4, the rear end plate 5 and the lower horizontal supporting plate 3, meeting the usage requirements of different positions of the connection node 9 of the steel column 8, and improving the flexibility of the installation of the steel column and the steel beam.

[0024] The embodiments of the present utility model have been described in detail above with reference to the drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present utility model.

Claims

1. An upper extended end plate stepped steel beam connection joint, characterized in that: The invention comprises a vertical plate (1), an upper horizontal support plate (2), a lower horizontal support plate (3), a front end plate (4), a rear end plate (5) and a steel beam (10), wherein the rear end plate (5) is vertically arranged at the end of the steel beam (10), the front end plate (4) and the rear end plate (5) are arranged in parallel, and the front end plate (4) and the rear end plate (5) are respectively horizontally arranged with a plurality of first connection holes (6) and second connection holes (7), the front end plate (4) is connected to a connection node (9) of a steel column (8) after bolts penetrate the first connection holes (6), and the vertical plate (1) is vertically arranged between the front end plate (4) and the rear end plate (5). The upper and lower ends of the vertical plate (1) are respectively provided with an upper horizontal support plate (2) and a lower horizontal support plate (3) horizontally, and the lower horizontal support plate (3) is vertically provided with a plurality of third connection holes (11). The lower horizontal support plate (3) is connected to the connection node (9) of the steel column (8) by bolts passing through the third connection holes (11); the upper end surface of the front plate (4) is higher than the upper side surface of the upper horizontal support plate (2), the lower end surface of the rear plate (5) is lower than the lower side surface of the lower horizontal support plate (3), and the lower end surface of the rear plate (5) is flush with the lower end surface of the steel beam (10).

2. The upper overhanging end plate stepped steel beam connection joint according to claim 1, characterized in that: The rear end plate (5) is welded and fixed to the end of the steel beam (10).

3. An upper overhanging end plate stepped steel beam connection joint according to claim 1 or 2, characterized in that: The vertical plate (1), the upper horizontal support plate (2), the lower horizontal support plate (3), the front end plate (4) and the rear end plate (5) are welded into a whole.

4. The upper overhanging end plate stepped steel beam connection joint according to claim 3, characterized in that: The diameters of the first connection hole (6) and the second connection hole (7) are greater than the diameter of the third connection hole (11).

5. The upper overhanging end plate stepped steel beam connection joint according to claim 1, characterized in that: The number of the first connection holes (6) and the number of the second connection holes (7) are both four, and the number of the third connection holes (11) is six.

6. The upper overhanging end plate stepped steel beam connection joint according to claim 5, characterized in that: The two first connection holes (6) are located above the upper horizontal support plate (2), the four second connection holes (7) are all located above the lower end surface of the steel beam (10), and the second connection holes (7) are all located below the lower horizontal support plate (3).

7. The upper overhanging end plate stepped steel beam connection joint according to claim 6, characterized in that: The upper side surface of the upper horizontal support plate (2) is flush with the upper end surface of the steel beam (10).

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