Outward extending type end plate lap step steel structure column

Abstract

The utility model discloses an overhanging type end plate lap step steel structure column, which increases the connection contact area with a steel column and a steel beam through the structural design on the premise of not influencing the universality and the adaptability of a steel column connection node, and solves the problems caused by too small contact area. An upper end plate of the end plate lap joint unit is vertically arranged on the upper side of the transverse lap joint column, the upper side of the upper end plate is higher than the upper side of the column flange plate, and a plurality of third connecting holes are formed in the upper end plate. The lower end plate is vertically arranged at the end, away from the connecting joint body, of the transverse lap joint column, the upper side of the lower end plate is flush with the upper side of the transverse lap joint column, the lower side of the lower end plate is lower than the lower side of the transverse lap joint column, and a plurality of first connecting holes in the same direction as the third connecting holes are formed in the lower end plate. The utility model can be widely applied to the field of fabricated buildings.

Description

Technical Field

[0001] The utility model relates to an extended end - plate stepped steel column, belonging to the field of prefabricated building technology. Background Technique

[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, and the prefabricated components also 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] 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 steel columns and steel beams.

[0005] At present, beam - column joints have been 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 for the installation of a steel frame, the crane assembles the steel beam on the extended step of the steel column, and the construction workers insert 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 loads, affecting the stability and safety of the entire structure. At the same time, a 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, insufficient contact area will also affect the durability and service life of the connection, especially in the case of repeated loads or dynamic loads, and a small contact area may make the installation of the connecting parts more difficult, requiring higher construction precision and process requirements. Content of the Utility Model

[0006] The utility model overcomes the deficiencies existing in the prior art and provides an extended end - plate stepped steel structure column. Without affecting the generality and adaptability of the steel column connection nodes, through structural design, the connection contact area with the steel column and the steel beam is increased, and the problems caused by too small contact area and the problem of construction assembly speed are solved.

[0007] In order to solve the above - mentioned technical problems, the technical solution adopted by the utility model is as follows: An extended end - plate stepped steel structure column includes a connection node body. The connection node body is an assembled frame structure. Column flange plates are arranged at both the upper and lower ends of the connection node body. Steel column connection holes for connecting steel columns are arranged on the column flange plates. It also includes an end - plate lapping unit arranged outside the connection node body, and the end - plate lapping unit is used for connecting with a steel beam.

[0008] The structure of the end - plate lapping unit is as follows: It includes a transverse lapping column, an upper end - plate and a lower end - plate. The transverse lapping column is an assembled frame structure, and one end of the transverse lapping column is welded and fixed on the connection node body. A plurality of second connection holes for connecting the steel beam are arranged on the top surface of the transverse lapping column. The upper end - plate is vertically arranged above the transverse lapping column, and the upper side of the upper end - plate is higher than the upper side of the column flange plate. The upper end - plate and the connection node body are connected together through a T - shaped connecting plate, and a plurality of third connection holes are arranged on the upper end - plate. The lower end - plate is vertically arranged at the end of the transverse lapping column far from the connection node body. The upper side of the lower end - plate is flush with the upper side of the transverse lapping column, and the lower side of the lower end - plate is lower than the lower side of the transverse lapping column. A plurality of first connection holes in the same direction as the third connection holes are arranged on the lower end - plate.

[0009] Further, the aperture diameters of the first connection holes and the third connection holes are larger than the aperture diameter of the second connection holes.

[0010] Further, the structure of the transverse lapping column is as follows: It includes a vertical plate, a stiffening plate, an upper horizontal supporting plate and a lower horizontal supporting plate. The vertical plate is horizontally welded and fixed on the connection node body. The upper horizontal supporting plate and the lower horizontal supporting plate are horizontally welded and fixed at the upper and lower ends of the vertical plate respectively. The second connection holes are arranged on the upper horizontal supporting plate. The stiffening plates are vertically arranged on both sides of the vertical plate, and the stiffening plates are located directly below the upper end - plate.

[0011] Further, the distribution form of the end - plate lapping unit outside the connection node body is either T - shaped, or cross - shaped, or L - shaped, or linear.

[0012] Further, the number of both the first connection holes and the third connection holes is four, and the number of the second connection holes is six.

[0013] Further, a gap is left between the edge of the upper end - plate and the column flange plate.

[0014] The beneficial effects of the present utility model compared with the prior art are as follows: By separating the gap between the upper end plate and the column flange plate, the area of the column flange plate is effectively increased. At the same time, the areas of the upper horizontal support plate, the upper end plate, and the lower end plate are increased, so that the connection contact area with the steel column and the steel beam is increased, solving the problems caused by too small contact area. According to the actual installation position, the distribution form of the end plate lapping unit outside the connection node body may be T-shaped, cross-shaped, L-shaped, or linear, meeting different usage requirements and improving the flexibility of the installation of the steel column and the steel beam. 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 structural schematic diagram of the present utility model, that is, a structural schematic diagram of the end plate lapping unit in a T-shaped distribution in the present utility model.

[0017] Figure 2 It is a connection schematic diagram of the present utility model with a steel column and a steel beam.

[0018] Figure 3 It is a connection schematic diagram of the present utility model with multiple steel columns.

[0019] Figure 4 It is a structural schematic diagram of the end plate lapping unit in a cross-shaped distribution in the present utility model.

[0020] Figure 5 It is a structural schematic diagram of the end plate lapping unit in an L-shaped distribution in the present utility model.

[0021] Figure 6 It is a structural schematic diagram of the end plate lapping unit in a linear distribution in the present utility model.

[0022] In the figure: 1. Connection node body; 2. Column flange plate; 3. Steel column; 4. Steel column connection hole; 5. End plate lapping unit; 51. Transverse lapping column; 511. Vertical plate; 512. Stiffening plate; 513. Upper horizontal support plate; 514. Lower horizontal support plate; 52. Upper end plate; 53. First connection hole; 54. Second connection hole; 55. T-shaped connecting plate; 56. Lower end plate; 57 is the third connection hole; 6. Steel beam. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present utility model will be further described below with reference to specific embodiments.

[0024] As Figures 1 to 6As shown in the figure, a novel externally extended end - plate stepped steel structure column of the present utility model includes a connection node body 1. The connection node body 1 is an assembled frame structure. Column flange plates 2 are provided at both the upper and lower ends of the connection node body 1. Steel column connection holes 4 for connecting a steel column 3 are provided on the column flange plates 2. It also includes an end - plate lapping unit 5 arranged outside the connection node body 1. The end - plate lapping unit 5 is used to connect with a steel beam 6. The distribution form of the end - plate lapping unit 5 outside the connection node body 1 is either T - shaped, cross - shaped, L - shaped, or linear.

[0025] The structure of the end - plate lapping unit 5 is as follows: It includes a transverse lapping column 51, an upper end - plate 52, and a lower end - plate 56. The transverse lapping column 51 is an assembled frame structure, and one end of the transverse lapping column 51 is welded and fixed to the connection node body 1. A plurality of second connection holes 54 for connecting the steel beam 6 are provided on the top surface of the transverse lapping column 51. The upper end - plate 52 is vertically arranged above the transverse lapping column 51. There is a gap between the upper end - plate 52 and the edge of the column flange plate 2. The upper side of the upper end - plate 52 is higher than the upper side of the column flange plate 2. The upper end - plate 52 and the connection node body 1 are connected together by a T - shaped connecting plate 55. A plurality of third connection holes 57 are provided on the upper end - plate 52. The lower end - plate 56 is vertically arranged at the end of the transverse lapping column 51 away from the connection node body 1. The upper side of the lower end - plate 56 is flush with the upper side of the transverse lapping column 51. The lower side of the lower end - plate 56 is lower than the lower side of the transverse lapping column 51. A plurality of first connection holes 53 in the same direction as the third connection holes 57 are provided on the lower end - plate 56. Among them, the diameters of the first connection holes 53 and the third connection holes 57 are larger than the diameter of the second connection holes 54. The number of both the first connection holes 53 and the third connection holes 57 is four, and the number of the second connection holes 54 is six.

[0026] The structure of the transverse lapping column 51 is as follows: It includes a vertical plate 511, stiffening plates 512, an upper horizontal supporting plate 513, and a lower horizontal supporting plate 514. The vertical plate 511 is horizontally welded and fixed to the connection node body 1. The upper horizontal supporting plate 513 and the lower horizontal supporting plate 514 are horizontally welded and fixed to the upper and lower ends of the vertical plate 511 respectively. The second connection holes 54 are provided on the upper horizontal supporting plate 513. The stiffening plates 512 are vertically arranged on both sides of the vertical plate 511, and the stiffening plates 512 are located directly below the upper end - plate 52.

[0027] The utility model effectively increases the area of the column flange plate 2 by pulling apart the gap between the upper end plate 52 and the column flange plate 2. At the same time, the areas of the upper horizontal support plate 513, the upper end plate 52 and the lower end plate 56 are increased, so that the connection contact area with the steel column and the steel beam is increased, and the problems caused by too small contact area are solved. According to the actual installation position, the distribution form of the end plate lapping unit 5 outside the connection node body 1 may be T-shaped, cross-shaped, L-shaped or linear, meeting different usage requirements and improving the flexibility of the installation of the steel column and the steel beam.

[0028] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. An extended end plate stepped steel structure column, comprising a connection node body (1), the connection node body (1) being an assembled frame structure, the upper and lower ends of the connection node body (1) being provided with column flange plates (2), the column flange plates (2) being provided with steel column connection holes (4) for connecting steel columns (3), characterized in that: It also includes an end plate overlapping unit (5) arranged outside the connection node body (1), and the end plate overlapping unit (5) is used to be connected to the steel beam (6); The structure of the end plate lap unit (5) is as follows: it comprises a transverse lap column (51), an upper end plate (52) and a lower end plate (56); the transverse lap column (51) is an assembled frame structure, and one end of the transverse lap column (51) is welded and fixed to the connection node body (1); the top surface of the transverse lap column (51) is provided with a plurality of second connection holes (54) for connecting the steel beam (6); the upper end plate (52) is vertically arranged on the upper side of the transverse lap column (51); the upper side of the upper end plate (52) is higher than the upper side of the column flange plate (2); and the upper end plate The upper end plate (52) is connected to the connection node body (1) via a T-shaped connection plate (55), and a plurality of third connection holes (57) are provided on the upper end plate (52); the lower end plate (56) is vertically arranged at the end of the transverse lap column (51) away from the connection node body (1), the upper side of the lower end plate (56) is flush with the upper side of the transverse lap column (51), the lower side of the lower end plate (56) is lower than the lower side of the transverse lap column (51), and a plurality of first connection holes (53) are provided on the lower end plate (56) in the same direction as the third connection holes (57).

2. The outward-extending end plate stepped steel structure column according to claim 1, characterized in that: The diameters of the first connection hole (53) and the third connection hole (57) are larger than the diameter of the second connection hole (54).

3. The outward-extending end plate stepped steel structure column according to claim 1, characterized in that: The structure of the transverse lap column (51) is as follows: it includes a vertical plate (511), a stiffening plate (512), an upper horizontal support plate (513) and a lower horizontal support plate (514); the vertical plate (511) is transversely welded and fixed to the connection node body (1); the upper and lower ends of the vertical plate (511) are horizontally welded and fixed with an upper horizontal support plate (513) and a lower horizontal support plate (514); the second connection hole (54) is provided on the upper horizontal support plate (513); the stiffening plate (512) is vertically provided on both sides of the vertical plate (511), and the stiffening plate (512) is located directly below the upper end plate (52).

4. The outward-extending end plate stepped steel structure column according to claim 3, characterized in that: The distribution form of the end plate overlapping units (5) outside the connection node body (1) is either T-shaped, cross-shaped, L-shaped, or straight-shaped.

5. The outward-extending end plate stepped steel structure column according to claim 4, characterized in that: The number of the first connection holes (53) and the number of the third connection holes (57) are both four, and the number of the second connection holes (54) is six.

6. The outward-extending end plate stepped steel structure column according to claim 5, characterized in that: A gap is left between the upper end plate (52) and the edge of the column flange plate (2).

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