End plate step-lapping unit, steel structural column, and prefabricated building

Abstract

The present utility model relates to an end plate step-lapping unit, comprising: a connecting node body, a transverse step-lapping column, an upper end plate, a lower end plate, and a T-shaped connecting plate. A first end of the transverse step-lapping column is connected to the connecting node body, and a second end of the transverse step-lapping column extends in a direction away from the connecting node body. The lower end plate is connected to the second end of the transverse step-lapping column, and the distance from the upper end plate to the center of the connecting node body is greater than the distance from the edge of the connecting node body to the center of the connecting node body. Two ends of the T-shaped connecting plate are respectively connected to the upper end plate and the connecting node body, and the upper end plate and the T-shaped connecting plate are both connected to the transverse step-lapping column. By means of the arrangement above, the area of a column flange plate is effectively increased while the areas of an upper horizontal support plate, the upper end plate, and the lower end plate are enlarged, thereby increasing the connection contact area with a steel column and a steel beam, addressing the problem caused by insufficient contact area.

Description

An end plate step unit, steel structure column and prefabricated building TECHNICAL FIELD

[0001] The utility model relates to prefabricated building technical field especially is to point to an end plate step unit, steel structure column and prefabricated building. BACKGROUND

[0002] The design of prefabricated building adopts the method of standardization and modularization, facilitates large-scale production and construction, although the initial investment can be higher, but due to the advantages of fast construction speed, low maintenance cost, etc., it has good economy in the long run, promotes the transformation of the construction industry to industrialization and informatization, improves the technical level and production efficiency of the overall construction industry; Prefabricated building adopts prefabricated processing, components are prefabricated in the factory, quality control is more strict, reduces the uncertainty of on-site construction, only needs to assemble on site, greatly shortens the construction period, reduces the noise, dust and construction waste generated on site, and the prefabricated components reduce material waste and improve material utilization, as a large amount of work is completed in the factory, reducing the labor required for on-site construction.

[0003] Most prefabricated buildings are composed of steel, because steel has high strength and toughness, can bear larger load, is suitable for large-span and high-rise buildings, can better withstand the impact of natural disasters such as earthquakes, and the cooperation of steel columns and beams can provide larger column-free space and improve the flexibility of building use. The steel columns are connected through connecting nodes, and the connecting nodes also serve as the connecting nodes of the steel columns and beams to form beam-column nodes, so the structure of the beam-column nodes plays a very key role in the connection process of the steel columns and beams.

[0004] At present, beam-column nodes are used for prefabricated steel structures, and this connection method has many advantages such as high assembly degree, fast construction speed, high safety, etc. When installing a steel frame using this connection node, the crane assembles the steel beam on the outer extension ladder of the steel column, and the construction personnel insert the bolts into the corresponding position, which can release the installation operation of the crane, greatly improving the installation efficiency of the crane. However, it is found in the use process that the contact area between the steel column and the steel beam is small, which may cause insufficient stiffness and bearing capacity of the beam-column node, unable to effectively transfer the load, affecting the stability and safety of the entire structure, and the small contact area may cause stress concentration, increase the local stress of the connecting piece or material, and the node deformation is large, thereby increasing the risk of damage. In addition, the insufficient contact area also affects the durability and service life of the connection, especially in the case of bearing repeated load or dynamic load, and the small contact area may make the installation of the connecting piece more difficult, requiring higher construction precision and process requirements. UTILITY MODEL CONTENTS

[0005] The utility model discloses to solve the technical problem that the present application provides an end plate step unit, steel structure column and fabricated building which overcome the problem that the contact area of the steel structure column is small in the prior art, which makes the installation of the connecting piece more difficult and requires higher construction precision and process requirements.

[0006] To solve the above technical problems, the utility model provides a kind of end plate step unit, comprising: connecting node body, transverse step column, upper end plate, lower end plate, T type connecting plate, the first end of the transverse step column is connected with connecting node body and second end extends to the direction away from connecting node body, the lower end plate is connected with the second end of transverse step column, the distance from upper end plate to the center of connecting node body is greater than the distance from the edge of connecting node body to the center, the two ends of the T type connecting plate are connected to upper end plate and connecting node body respectively, and the upper end plate and T type connecting plate are connected with transverse step column.

[0007] In an embodiment of the utility model, the transverse step column includes: vertical plate, stiffened plate, upper horizontal supporting plate and lower horizontal supporting plate, the upper horizontal supporting plate and lower horizontal supporting plate are connected to the two ends of vertical plate respectively, and the stiffened plate is connected with upper horizontal supporting plate, vertical plate and lower horizontal supporting plate.

[0008] In an embodiment of the utility model, the connecting node body is provided with mounting hole along height direction, and the connecting node body is provided with column flange plate on the circumferential side of the two ends of mounting hole respectively, and the column flange plate is provided with steel column connecting hole for being connected with the steel column to be installed.

[0009] In an embodiment of the utility model, the column flange plate extends to the direction away from the center of connecting node body, and the upper end plate and column flange plate are spaced apart.

[0010] In an embodiment of the utility model, the lower end plate is provided with first connecting hole for being connected with the steel beam to be installed.

[0011] In an embodiment of the utility model, the transverse step column is provided with second connecting hole for being connected with the steel beam to be installed.

[0012] In an embodiment of the utility model, the upper end plate is provided with third connecting hole for being connected with the steel beam to be installed.

[0013] In an embodiment of the utility model, the second connecting hole is multiple, multiple second connecting holes are arranged along horizontal direction, and the first connecting hole and third connecting hole are multiple and are arranged along height direction.

[0014] In an embodiment of the utility model, the aperture of the first connecting hole and third connecting hole is greater than the aperture of the second connecting hole.

[0015] In one embodiment of the utility model, the height of the lower end plate bottom surface relative to the ground is less than the height of the transverse step column bottom surface relative to the ground.

[0016] In one embodiment of the utility model, the height of the upper end plate top surface relative to the ground is greater than the height of the transverse step column top surface relative to the ground.

[0017] In one embodiment of the utility model, the end plate step unit is distributed in the form of T, cross, L or a single letter on the outside of the connecting node body.

[0018] The number of the first connecting hole and the third connecting hole is four, and the number of the second connecting hole is six.

[0019] The utility model discloses also a kind of steel structure column, comprising: steel column;And the end plate step unit described above, the end plate step unit is installed in steel column.The number of steel column and end plate step unit is multiple, and adjacent steel column is connected by end plate step unit.

[0020] The utility model discloses also a kind of fabricated building, comprising the steel structure column described above.

[0021] The above technical scheme of the utility model has the following advantages compared with prior art:

[0022] The end plate step unit according to the utility model can be distributed in different positions on the outside of the connecting node body according to actual installation position, meet different use demands, improve the flexibility of steel column and steel beam installation, effectively increase the area of column flange plate by pulling apart the gap between upper end plate and column flange plate, increase the area of upper horizontal supporting plate, upper end plate and lower end plate at the same time, increase the connection contact area with steel column and steel beam, solve the problem caused by too small contact area. DETAILED DESCRIPTION

[0023] In order to make the content of the utility model more easily understood clearly, the utility model is further explained in detail below according to specific embodiments of the utility model and in conjunction with drawings, wherein

[0024] Fig. 1 is a structural schematic diagram of the utility model, that is, a structural schematic diagram of the end plate step unit in the utility model is distributed in T shape.

[0025] Fig. 2 is a connection schematic diagram of the utility model and steel column and steel beam.

[0026] Fig. 3 is a connection schematic diagram of the utility model and multiple steel columns.

[0027] Fig. 4 is a structural schematic diagram of the end plate step unit in the utility model is distributed in cross shape.

[0028] Figure 5 is a structure schematic view of the end plate step unit in the utility model in L type distribution.

[0029] Figure 6 is a structure schematic view of the end plate step unit in the utility model in a type distribution.

[0030] Description of the drawings reference: 1, connecting node body; 2, column flange plate; 3, steel column; 4, steel column connecting hole; 5, end plate step unit; 51, transverse step column; 511, vertical plate; 512, stiffener; 513, upper horizontal supporting plate; 514, lower horizontal supporting plate; 52, upper end plate; 53, first connecting hole; 54, second connecting hole; 55, T-shaped connecting plate; 56, lower end plate; 57, third connecting hole; 6, steel beam. Specific embodiments

[0031] The utility model is further described below in combination with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0032] Embodiment one, refer to figure 1, figure 2-4, the end plate step unit 5 of the utility model, including: connecting node body 1, transverse step column 51, upper end plate 52, lower end plate 56, T-shaped connecting plate 55, the first end of transverse step column 51 is connected with connecting node body 1 and the second end extends in the direction away from connecting node body 1, the lower end plate 56 is connected with the second end of transverse step column 51, the distance from upper end plate 52 to connecting node body center 1 is greater than the distance from the edge of connecting node body 1 to the center, both ends of T-shaped connecting plate 55 are connected to upper end plate 52 and connecting node body 1 respectively, and upper end plate 52 and T-shaped connecting plate 55 are connected with transverse step column 51.

[0033] The utility model discloses a kind of end plate steps unit 5, be connected by connecting node body 1 with the steel column 3 to be installed, since upper end plate 52 is spaced apart from connecting node body 1, when structure stress, the load borne by end plate steps unit 5 is passed through contact position point transmission to upper end plate 52 and connecting node body 1.Lower end plate 56 is connected with the beam to be installed, and transverse steps column 51 passes through the contact surface connected with connecting node body 1 and is transmitted to connecting node body 1, while itself also shares a part of load, and load is transmitted to connecting node body 1 T type connecting plate cooperates with upper end plate 52 and connecting node, and upper end plate 52 is connected with connecting node body 1, while it is connected with transverse steps column 51, so that force can be more effectively transmitted and distributed between components.Upper end plate 52 has gap between column flange plate 2, so as to effectively increase the area of column flange plate 2, increase the connecting contact area with the steel column 3 to be installed, so that connecting node body 1 and steel column 3 can better transmit load between, reduce the stress on unit area, improve the reliability of connection and the overall stability of structure.Make end plate steps unit 5 effectively realize the connection with the steel column 3 to be installed, and efficiently transmit and distribute load in entire steel structure system, meet the safety and stability requirements of engineering structure.

[0034] Referring to FIG. 1 and FIG. 4, the transverse stepped column 51 comprises a vertical plate 511, a stiffener plate 512, an upper horizontal supporting plate 513 and a lower horizontal supporting plate 514, the upper horizontal supporting plate 513 and the lower horizontal supporting plate 514 are connected to the two ends of the vertical plate 511 respectively, and the stiffener plate 512 is connected with the upper horizontal supporting plate 513, the vertical plate 511 and the lower horizontal supporting plate 514. When the steel beam 6 bears a load, the load is transmitted to the upper horizontal supporting plate 513 through the contact surface of the upper horizontal supporting plate 513. The upper horizontal supporting plate 513 directly transmits part of the load to the vertical plate 511, and the vertical plate 511 transmits the part of the vertical load to the lower horizontal supporting plate 514, while the vertical plate 511 also bears part of the load. Meanwhile, the lower horizontal supporting plate 514 transmits the load from the vertical plate 511 and the load from the steel beam 6 to the connecting node body 1. When the vertical plate 511 bears a large vertical or horizontal load, local buckling or torsional deformation may occur. The stiffener plate 512 effectively limits the deformation of the vertical plate 511, the upper horizontal supporting plate 513 and the lower horizontal supporting plate 514 by being connected with the vertical plate 511, the upper horizontal supporting plate 513 and the lower horizontal supporting plate 514. The stiffener plate 512 disperses the load borne by the vertical plate 511 to the upper horizontal supporting plate 513, the lower horizontal supporting plate 514 and the structure of the stiffener plate 512, so that the entire transverse stepped column 51 can bear force more uniformly. In this embodiment, the plane of the stiffener plate 512 and the plane of the vertical plate 511 are perpendicular to each other and both are in the vertical direction. The vertical plate 511 can better resist horizontal force and prevent lateral displacement or deformation under the constraint of the stiffener plate 512. At the same time, the stiffener plate 512 transmits part of the horizontal load to the upper horizontal supporting plate 513, and the upper horizontal supporting plate 513 transmits the part of the load to the upper end plate 52 and the connecting node body 1, and finally transmits the load to the steel column 3 through the connecting node body 1, so as to realize load transmission and bearing of the entire structural system.

[0035] Referring to FIG. 3, FIG. 5 and FIG. 6, the connecting node body 1 is provided with a mounting hole in the height direction, and the connecting node body 1 is provided with a column flange plate 2 at the circumferential side of each end of the mounting hole, and the column flange plate 2 is provided with a steel column connecting hole 4 for connecting with the steel column 3 to be installed. In the installation process of the end plate stepped unit 5, the connecting node body 1 is preliminarily positioned with the steel column 3 to be installed through the mounting hole. The connecting member is inserted into the steel column connecting hole 4 of the column flange plate 2 and the corresponding connecting hole of the steel column 3, so that the column flange plate 2 and the steel column 3 to be installed are tightly connected together to form a reliable connecting node.

[0036] Referring to FIG. 5 and FIG. 6, the column flange plate 2 extends away from the center of the connection node body 1, and the upper end plate 52 and the column flange plate 2 are spaced apart. The column flange plate 2 extends outward to increase the area, which can more effectively transmit the load borne by the connection node body 1 to the steel column 3 to be installed. The larger contact area makes the load more evenly distributed on the cross section of the steel column 3, reduces the risk of local stress concentration, and improves the reliability of the connection. The spacing between the upper end plate 52 and the column flange plate 2 is further increased by spacing the upper end plate 52 and the column flange plate 2, which avoids mutual interference of the upper end plate 52 and the column flange plate 2 under the action of horizontal force, and optimizes the lateral force resistance performance of the entire structure.

[0037] Referring to FIG. 1 and FIG. 4, the lower end plate 56 is provided with a first connecting hole 53 for connecting with the steel beam 6 to be installed. The vertical force borne by the steel beam 6 to be installed is transmitted to the lower end plate 56 through the connecting point of the steel beam 6 and the lower end plate 56, i.e. the connecting piece at the first connecting hole 53. The lower end plate 56 then transmits the load to the transverse step column 51 and the connection node body 1. The connection structure formed by the first connecting hole 53 and the connecting piece between the lower end plate 56 and the steel beam 6 can also effectively resist horizontal force, prevent relative displacement between the steel beam 6 and the end plate step unit 5, and ensure the overall stability of the structure.

[0038] Referring to FIG. 1 and FIG. 4, the transverse step column 51 is provided with a second connecting hole 54 for connecting with the steel beam 6 to be installed. The second connecting hole 54 is provided on the top surface of the transverse step column 51, i.e. the upper horizontal supporting plate 513. The second connecting hole 54 arranged in the horizontal direction enables the vertical load of the steel beam 6 to be evenly distributed on the transverse step column 51, avoiding excessive local stress.

[0039] Continuing to refer to FIG. 1 and FIG. 4, the upper end plate 52 is provided with a third connecting hole 57 for connecting with the steel beam 6 to be installed. Part of the load borne by the steel beam 6 will be transmitted to the upper end plate 52 through the third connecting hole 57. The upper end plate 52 then transmits this part of the load to the transverse step column 51 and the connection node body 1 and other components. Since multiple third connecting holes 57 are arranged in the height direction, the vertical load of the steel beam 6 can be more evenly distributed to different positions of the upper end plate 52 in the vertical direction, avoiding excessive local stress and enhancing the load bearing capacity of the connection part.

[0040] Continuing to refer to FIG. 1 and FIG. 4, the second connecting holes 54 are multiple and arranged in a horizontal direction, and the first connecting holes 53 and the third connecting holes 57 are multiple and arranged in a vertical direction. The planes on which the first connecting holes 53, the second connecting holes 54 and the third connecting holes 57 are arranged constitute a stepped surface, and the plane on which the first connecting holes 53 are arranged is a vertical plane, the plane on which the second connecting holes 54 are arranged is a horizontal plane, the plane on which the third connecting holes 57 are arranged is a vertical plane, and the planes on which the first connecting holes 53, the second connecting holes 54 and the third connecting holes 57 are arranged are arranged in sequence and continuously, thereby improving the structural stability.

[0041] Continuing to refer to FIG. 1 and FIG. 4, the diameters of the first connecting holes 53 and the third connecting holes 57 are greater than the diameter of the second connecting holes 54. The diameters of the first connecting holes 53 and the third connecting holes 57 are greater than the diameter of the second connecting holes 54, so that larger connecting members can be satisfied by increasing the diameters, and the numbers of the first connecting holes 53, the second connecting holes 54 and the third connecting holes 57 are multiple, wherein the numbers of the first connecting holes 53 and the third connecting holes 57 are four, and the number of the second connecting holes 54 is six. In this embodiment, the first connecting holes 53, the second connecting holes 54 and the third connecting holes 57 are threaded holes or pin holes, and the corresponding connecting members are bolts or pins, and the detachable assembly can be realized by bolt connection or the fixed connection can be realized by the pins passing through the corresponding holes and being welded.

[0042] Referring to FIG. 2, FIG. 3 and FIG. 4, the connecting node body 1 is a fabricated frame structure, the upper and lower ends of the connecting node body 1 are provided with column flange plates 2, the column flange plates 2 are provided with steel column connecting holes 4 for connecting steel columns 3, and the end plate step unit 5 arranged outside the connecting node body 1 is used for connecting with the steel beam 6; the distribution form of the end plate step unit 5 outside the connecting node body 1 is T-shaped, cross-shaped, L-shaped or straight-shaped. The transverse step column 51 is a fabricated frame structure, one end of the transverse step column 51 is welded and fixed on the connecting node body 1, the end surface and the top surface of the transverse step column 51 are provided with multiple first connecting holes 53 and second connecting holes 54 for connecting the steel beam 6, the upper end plate 52 is vertically arranged on the transverse step column 51, the upper end surface of the upper end plate 52 is higher than the upper end surface of the column flange plate 2, the upper end plate 52 and the connecting node body 1 are connected together through the T-shaped connecting plate 55, and a gap is left between the edge of the upper end plate 52 and the column flange plate 2, so as to ensure that the size of the column flange plate 2 is sufficient to meet the construction requirements.

[0043] Referring to Fig. 1, the structure of the transverse stepped column 51 is as follows: it comprises a vertical plate 511, a stiffener plate 512, an upper horizontal support plate 513, a lower horizontal support plate 514, and a lower end plate 56. The vertical plate 511 is transversely welded and fixed on the connecting node body 1. The upper and lower ends of the vertical plate 511 are respectively horizontally welded and fixed with the upper horizontal support plate 513 and the lower horizontal support plate 514. The second connecting hole 54 is arranged on the upper horizontal support plate 513. The lower end plate 56 is arranged at the end of the upper horizontal support plate 513 and the lower horizontal support plate 514 away from the connecting node body 1. The first connecting hole 53 is arranged on the lower end plate 56. The stiffener plate 512 is vertically arranged on both sides of the vertical plate 511, and the stiffener plate 512 is located directly below the upper end plate 52.

[0044] Referring to Fig. 4, the height of the top surface of the lower end plate 56 relative to the ground is less than the height of the bottom surface of the transverse stepped column 51 relative to the ground. The lower end plate 56 extends downward and protrudes from the bottom surface of the transverse stepped column 51, thereby increasing the lateral contact area of the lower end plate 56. The lateral load capacity is improved.

[0045] Continuing to refer to Fig. 4, the height of the top surface of the upper end plate 52 relative to the ground is greater than the height of the top surface of the transverse stepped column 51 relative to the ground. After receiving the load of the steel beam 6, the upper end plate 52 can effectively transmit the load to the transverse stepped column 51, the connecting node body 1, and other components. The plurality of third connecting holes 57 arranged in the height direction enable the vertical load of the steel beam 6 to be more uniformly distributed in the vertical direction on the upper end plate 52, avoiding excessive local stress. At the same time, the higher height setting also helps to optimize the force transmission path in the entire end plate stepped unit 5 under lateral load, jointly bear the load, and improve the lateral bearing capacity of the structure.

[0046] In embodiment two, referring to Figs. 2 and 3, the embodiment discloses a steel structure column, comprising: a steel column 3; and an end plate stepped unit 5 as described in embodiment one, the end plate stepped unit 5 being installed on the steel column 3.

[0047] The steel structure column described in the embodiment has the end plate stepped unit 5 installed on the steel column 3. Adjacent steel columns 3 are connected with the steel beam 6 through the end plate stepped unit 5, forming a steel structure column. Various loads received by the steel beam 6 are transmitted to the end plate stepped unit 5 through the connecting point with the end plate stepped unit 5. The lower end plate 56, the transverse stepped column 51, and the upper end plate 52 respectively receive part of the load transmitted from the steel beam 6 and further transmit the load to the connecting node body 1. The connecting node body 1 transmits the collected load to the steel column 3, and finally the steel column 3 transmits the load to the foundation.

[0048] In embodiment three, the embodiment discloses a fabricated building, comprising a steel structure column as described in embodiment two.

[0049] The assembled building is composed of a plurality of steel structure columns, and the steel structure columns are used as main load-bearing components, and have the advantages of fast construction speed and high industrialization degree. The plurality of steel structure columns are matched with each other to form a complete building frame structure system, and bear vertical and horizontal loads of the building. In the assembled building, the steel structure column bodies are arranged in the vertical direction to bear the vertical load, and adjacent steel structure columns support each other to bear the horizontal load, thereby guaranteeing the safety and stability of the building. According to the building function and design requirements, the plane and space layout is carried out, the steel structure columns are arranged at the frame nodes of the assembled building to form a grid structure, and the vertical and horizontal loads of the building are uniformly borne.

[0050] The end plate step unit forms a stepped surface at the end, specifically, two continuous stepped surfaces are formed by the upper end plate 52, the upper horizontal supporting plate 513 and the lower end plate 56, adjacent steel columns 3 are connected with corresponding stepped surfaces through steel beams 6 to form a stepped structure, thereby realizing the step form fitting, and cooperating with corresponding connecting pieces to realize fixed assembly.

[0051] Obviously, the above embodiments are only examples for clearly illustrating, and are not limitation to the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments are not required to be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. An end plate step unit, characterized by, The application relates to a steel structure connecting node, which comprises a connecting node body, a transverse ladder column, an upper end plate, a lower end plate and a T-shaped connecting plate. The transverse ladder column comprises a vertical plate, a stiffening plate, an upper horizontal supporting plate and a lower horizontal supporting plate.

2. An end panel step unit according to claim 1, wherein The connecting node body is provided with mounting holes in the height direction, and the connecting node body is provided with column flange plates on the circumferential sides of the two ends of the mounting holes.

3. An end panel step unit according to claim 1, wherein, The column flange plates extend away from the center of the connecting node body.

4. An end plate step unit according to claim 3, wherein The lower end plate is provided with first connecting holes for connecting with a steel beam to be installed.

5. A decker unit according to claim 1, wherein The transverse ladder column is provided with second connecting holes for connecting with the steel beam to be installed.

6. An end plate step unit according to claim 5, wherein The upper end plate is provided with third connecting holes for connecting with the steel beam to be installed.

7. An end plate step unit according to claim 6, wherein The second connecting holes are multiple and arranged in the horizontal direction, and the first connecting holes and the third connecting holes are multiple and arranged in the height direction.

8. An end plate step unit according to claim 7, wherein The diameters of the first connecting holes and the third connecting holes are larger than the diameter of the second connecting holes.

9. An end plate step unit according to claim 7, wherein The height of the bottom surface of the lower end plate relative to the ground is smaller than the height of the bottom surface of the transverse ladder column relative to the ground.

10. A deck riser unit according to claim 1, wherein, The height of the top surface of the upper end plate relative to the ground is larger than the height of the top surface of the transverse ladder column relative to the ground.

11. An end plate step unit according to claim 1 or 10, wherein The application relates to a steel structure connecting node, which comprises a connecting node body, a transverse ladder column, an upper end plate, a lower end plate and a T-shaped connecting plate.

12. A steel structural column, characterized by, The transverse ladder column comprises a vertical plate, a stiffening plate, an upper horizontal supporting plate and a lower horizontal supporting plate. The connecting node body is provided with mounting holes in the height direction, and the connecting node body is provided with column flange plates on the circumferential sides of the two ends of the mounting holes. The column flange plates extend away from the center of the connecting node body.

13. A building of assembled parts, characterized in that, The lower end plate is provided with first connecting holes for connecting with a steel beam to be installed. The transverse ladder column is provided with second connecting holes for connecting with the steel beam to be installed. The upper end plate is provided with third connecting holes for connecting with the steel beam to be installed. The second connecting holes are multiple and arranged in the horizontal direction, and the first connecting holes and the third connecting holes are multiple and arranged in the height direction. The diameters of the first connecting holes and the third connecting holes are larger than the diameter of the second connecting holes. The height of the bottom surface of the lower end plate relative to the ground is smaller than the height of the bottom surface of the transverse ladder column relative to the ground. The height of the top surface of the upper end plate relative to the ground is larger than the height of the top surface of the transverse ladder column relative to the ground. The application relates to a steel structure connecting node, which comprises a connecting node body, a transverse ladder column, an upper end plate, a lower end plate and a T-shaped connecting plate. The transverse ladder column comprises a vertical plate, a stiffening plate, an upper horizontal supporting plate and a lower horizontal supporting plate. The connecting node body is provided with mounting holes in the height direction, and the connecting node body is provided with column flange plates on the circumferential sides of the two ends of the mounting holes. The column flange plates extend away from the center of the connecting node body. The lower end plate is provided with first connecting holes for connecting with a steel beam to be installed. The transverse ladder column is provided with second connecting holes for connecting with the steel beam to be installed. The upper end plate is provided with third connecting holes for connecting with the steel beam to be installed. The second connecting holes are multiple and arranged in the horizontal direction, and the first connecting holes and the third connecting holes are multiple and arranged in the height direction. The diameters of the first connecting holes and the third connecting holes are larger than the diameter of the second connecting holes. The height of the bottom surface of the lower end plate relative to the ground is smaller than the height of the bottom surface of the transverse ladder column relative to the ground. The height of the top surface of the upper end plate relative to the ground is larger than the height of the top surface of the transverse ladder column relative to the ground. The application relates to a steel structure connecting node, which comprises a connecting node body, a transverse ladder column, an upper end plate, a lower end plate and a T-shaped connecting plate. The transverse ladder column comprises a vertical plate, a stiffening plate, an upper horizontal supporting plate and a lower horizontal supporting plate. The connecting node body is provided with mounting holes in the height direction, and the connecting node body is provided with column flange plates on the circumferential sides of the two ends of the mounting holes. The column flange plates extend away from the center of the connecting node body. The lower end plate is provided with first connecting holes for connecting with a steel beam to be installed. The transverse ladder column is provided with second connecting holes for connecting with the steel beam to be installed. The upper end plate is provided with third connecting holes for connecting with the steel beam to be installed. The second connecting holes are multiple and arranged in the horizontal direction, and the first connecting holes and the third connecting holes are multiple and arranged in the height direction. The diameters of the first connecting holes and the third connecting holes are larger than the diameter of the second connecting holes. The height of the bottom surface of the lower end plate relative to the ground is smaller than the height of the bottom surface of the transverse ladder column relative to the ground. The height of the top surface of the upper end plate relative to the ground is larger than the height of the top surface of the transverse ladder column relative to the ground. The application relates to a steel structure connecting node, which comprises a connecting node body, a transverse ladder column, an upper end plate, a lower end plate and a T-shaped connecting plate. The transverse ladder column comprises a vertical plate, a stiffening plate, an upper horizontal supporting plate and a lower horizontal supporting plate. The connecting node body is provided with mounting holes in the height direction, and the connecting node body is provided with column flange plates on the circumferential sides of the two ends of the mounting holes. The column flange plates extend away from the center of the connecting node body. The lower end plate is provided with first connecting holes for connecting with a steel beam to be installed. The transverse ladder column is provided with second connecting holes for connecting with the steel beam to be installed. The upper end plate is provided with third connecting holes for connecting with the steel beam to be installed. The second connecting holes are multiple and arranged in the horizontal direction, and the first connecting holes and the third connecting holes are multiple and arranged in the height direction. The diameters of the first connecting holes and the third connecting holes are larger than the diameter of the second connecting holes. The height of the bottom surface of the lower end plate relative to the ground is smaller than the height of the bottom surface of the transverse ladder column relative to the ground. The height of the top surface of the upper end plate relative to the ground is larger than the height of the top surface of the transverse ladder column relative to the ground. The application relates to a steel structure connecting node, which comprises a connecting node body, a transverse ladder column, an upper end plate, a lower end plate and a T-shaped connecting plate. The transverse ladder column comprises a vertical plate, a stiffening plate, an upper horizontal supporting plate and a lower horizontal supporting plate. The connecting node body is provided with mounting holes in the height direction, and the connecting node body is provided with column flange plates on the circumferential sides of the two ends of the mounting holes. The column flange plates extend away from the center of the connecting node body. The lower end plate is provided with first connecting holes for connecting with a steel beam to be installed. The transverse ladder column is provided with second connecting holes for connecting with the steel beam to be installed. The upper end plate is provided with third connecting holes for connecting with the steel beam to be installed. The second connecting holes are multiple and arranged in the horizontal direction, and the first connecting holes and the third connecting holes are multiple and arranged in the height direction. The diameters of the first connecting holes and the third connecting holes are larger than the diameter of the second connecting holes. The height of the bottom surface of the lower end plate relative to the ground is smaller than the height of the bottom surface of the transverse ladder column relative to the ground. The height of the top surface of the upper end plate relative to the ground is larger than the height of the top surface of the transverse ladder column relative to the ground. The application relates to a steel structure connecting node, which comprises a connecting node body, a transverse ladder column, an upper end plate, a lower end plate and a T-shaped connecting plate. The transverse ladder column comprises a vertical plate, a stiffening plate, an upper horizontal supporting plate and a lower horizontal supporting plate. The connecting node body is provided with mounting holes in the height direction, and the connecting node body is provided with column flange plates on the circumferential sides of the two ends of the mounting holes. The column flange plates extend away from the center of the connecting node body. The lower end plate is provided with first connecting holes for connecting with a steel beam to be installed. The transverse ladder column is provided with second connecting holes for connecting with the steel beam to be installed. The upper end plate is provided with third connecting holes for connecting with the steel beam to be installed. The second connecting holes

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