Steel beam column connection node structure

Abstract

The utility model relates to the technical field of building structure node connecting structures, in particular to a steel beam column connecting node structure. Comprising a steel column and a steel beam and further comprises an upper flange connecting piece, a lower flange connecting piece and a corner connecting piece, and the upper flange connecting piece is arranged on the upper side of the steel beam and fixedly connected with an upper flange plate of the steel beam; the lower flange connecting piece is arranged on the lower side of the steel beam and used for connecting a lower flange plate of the steel beam with the side face of the steel column. The corner connecting pieces are arranged at the corners of the steel column and are vertically and adjustably connected to the upper flange connecting pieces on the two sides, and the corner connecting pieces are used for fixedly connecting the adjacent upper flange connecting pieces which are located on the different sides of the steel column and located at the different section heights into a whole in the horizontal direction. The steel beam column joint is simple in structure, extremely convenient to produce and install, capable of adapting to fixed connection of steel beams and steel columns with different section heights, more stable and firmer in structure, high in production efficiency, reliable in quality, convenient to install and capable of saving manufacturing cost, and installation is conducted through standard prefabricated connecting pieces.

Description

Technical Field

[0001] The utility model relates to the technical field of building structure joint connection structures, and specifically refers to a steel beam-column connection joint structure. Background Technique

[0002] Steel structure buildings are engineering structures formed by processing, connecting, and installing steel. This technology is widely used in high-rise buildings, bridges, large factories, large-span space structures, and light steel residential buildings, etc., with the advantages of light weight, high strength, environmental protection, energy conservation, and high construction efficiency. Beam-column joints play a crucial role in steel frame structures, mainly including connecting beam-column members, transferring loads, maintaining the overall stability, stiffness, and bearing capacity of the structure. Square steel tube columns have the same moment of inertia in two directions and no weak axis, with excellent mechanical properties, easy to process, and simple to install, and are widely used in steel structures. I-shaped steel beams are the beam forms widely used in steel structure design. Unilateral bolts, also known as blind hole bolts, can achieve the functions of single-sided installation and single-sided tightening, and are particularly suitable for the connection between square steel tube columns and steel beams, especially those blocked parts that cannot be reached by hand, such as the inside of steel tube structure members.

[0003] For example, the Chinese invention patent with the patent number "CN108532759A" and the name "Ring plate splicing type hollow sandwich steel tube concrete composite joint and installation method" introduces a steel tube concrete composite joint structure. This structure includes a square steel tube column, an I-shaped steel beam, and a beam-column connection component connecting the two. The square steel tube column is connected with the T-shaped connection side plate of the circular steel tube column through a T-shaped hole; the beam-column connection component includes two groups of splicing plates symmetrically arranged up and down and a T-shaped connecting piece arranged between the two groups of splicing plates and connecting the two; each group of splicing plates includes four identical splicing plates. The splicing plate includes a horizontal part, a vertical part, and a connecting ear, and a T-shaped sliding part is arranged on the back of the horizontal part; a T-shaped sliding groove matched with the T-shaped sliding part is arranged on the T-shaped connecting piece. The joint structure introduced in this patent is simple. The connection joint adopts a unique outer ring plate splicing connection to realize the design concept of "strong column and weak beam". The welding of all components is completed in the factory, and all are connected by bolts on site, realizing fully assembled construction.

[0004] However, the joint structure introduced in this patent also has some problems, that is, the applicable range of this joint structure is relatively narrow and can only be applied to the scenario where the steel beams are at the same horizontal height. In general steel structure building design, due to the differences in floor loads in each area, different steel beam section heights suitable for their loads are generally selected to save steel, reduce costs, and ensure the economy of construction. The connection between the square steel tube column and the I-shaped steel beam disclosed in this patent adopts a unified form of beam-column connection component, and can only connect steel beams with the same section height on the four sides of the steel column, that is, only steel beams with the same section height can be used, which greatly limits the application of this joint in actual projects. Summary of the Invention

[0005] The purpose of the present utility model is to solve the deficiencies in the above-mentioned background technology and provide a steel beam-column connection node structure.

[0006] The technical solution of the present utility model is as follows: A steel beam-column connection node structure includes a steel column and steel beams respectively arranged on the transverse two sides and longitudinal two sides of the steel column; the steel column is a square steel pipe pile arranged vertically; the steel beams are I-shaped horizontal beams with their webs arranged vertically, and the cross-sectional heights of adjacent steel beams are different. Further,

[0007] an upper flange connecting member, which is arranged on the upper side of the steel beam and fixedly connected to the upper flange plate of the steel beam;

[0008] a lower flange connecting member, which is arranged on the lower side of the steel beam and used to connect the lower flange plate of the steel beam to the side surface of the steel column;

[0009] a corner connecting member, which is arranged at the corner of the steel column and vertically adjustable to be connected to the upper flange connecting members on both sides, and is used to integrally fix the adjacent upper flange connecting members located on different sides of the steel column and at different cross-sectional heights in the horizontal direction.

[0010] According to a steel beam-column connection node structure provided by the present application, a group of corner connecting members are arranged at the corner between adjacent steel beams. Each group of corner connecting members includes two connecting plates connected to the upper flange connecting members on both sides, and the two connecting plates are connected at the side to form an L-shaped connecting member.

[0011] According to a steel beam-column connection node structure provided by the present application, a plurality of adjustable bolt holes are arranged at intervals in the horizontal direction on the connecting plate; the adjustable bolt holes are oblong bolt holes arranged vertically; the upper flange connecting member is vertically adjustable and connected to the connecting plate through bolts passing through the adjustable bolt holes.

[0012] According to a steel beam-column connection node structure provided by the present application, the upper flange connecting member includes a first connecting portion bolt-connected to the upper flange of the steel beam and a second connecting portion bolt-connected to the corner connecting members on both sides. Two groups of second connecting portions located on both sides of the first connecting portion are perpendicularly intersected with the first connecting portion to form an I-shaped member.

[0013] According to a steel beam-column connection node structure provided by the present application, the first connecting portion is a plate-like structure fixed on the upper end surface of the upper flange of the steel beam.

[0014] According to a steel beam-column connection node structure provided by the present application, two groups of bolts are arranged on the first connecting portion, and the two groups of bolts are respectively arranged on the upper and lower sides of the second connecting portion.

[0015] A steel beam-column connection joint structure provided by the present application, the lower flange connecting member includes a third connecting portion bolted to the lower flange of the steel beam and a fourth connecting portion bolted to the side surface of the steel column; the third connecting portion and the fourth connecting portion are vertically intersected to form an L-shaped member.

[0016] A steel beam-column connection joint structure provided by the present application, a triangular fifth connecting portion for supporting is arranged between the third connecting portion and the fourth connecting portion.

[0017] A steel beam-column connection joint structure provided by the present application, the fourth connecting portion is a plate-like structure located at the lower end surface of the lower flange of the steel beam.

[0018] A steel beam-column connection joint structure provided by the present application, two groups of bolts are provided on the fourth connecting portion, and the two groups of bolts are respectively arranged on both sides of the web of the steel beam.

[0019] The advantages of the present application are as follows: 1. The steel beam-column joint structure of the present application is simple, can be applied to steel beams with different cross-section heights, steel beams with different cross-section heights can be stably fixed on the side surface of the steel column, the upper flange connecting member can connect the upper flange of the steel beam into an integral structure, the lower flange connecting member is used to support the steel beam and connect the steel beam and the steel column into an integral body. The combined structure of the upper flange connecting member and the corner connecting member can adapt to different height differences, is convenient for assembly and installation, can adapt to steel beams with different height cross-sections, the overall assembly structure is very simple, all connecting members are prefabricated in the factory, and can be installed with bolts at the construction site, realizing fully assembled construction, with high installation efficiency, good integrity and good economy;

[0020] 2. The corner connecting member of the present application has a simple structure and is extremely convenient to install and manufacture. Through the corner connecting member, the upper flange connecting members on both sides can be conveniently fixed, so as to connect the upper flanges of adjacent steel beams into an integral body, and the overall assembly is very simple and convenient;

[0021] 3. The present application is provided with a plurality of oblong adjustable bolt holes on the connecting plate. By utilizing the up-and-down adjustable function of the adjustable bolt holes, the installation of the upper flange connecting members with different height differences on both sides can be adapted, with simple operation and convenient installation;

[0022] 4. The upper flange connecting member of the present application is an I-shaped member, and the I-shaped member has an excellent bearing effect in dealing with horizontal lateral extrusion and tensile forces, and the structure of the I-shaped member is simple, very convenient for production and assembly, and is firmly and stably fixed to the corner connecting member;

[0023] 5. The first connecting portion of the present application is located at the upper end surface of the upper flange of the steel beam, the first connecting portion does not interfere with the web, is convenient for installation, easier for assembly, has a larger contact area with the upper flange, and is more stable and firm;

[0024] 6. The first connecting part of the present application is fixedly connected to the connecting plate through two groups of bolts, and the two groups of bolts are respectively arranged on the upper and lower sides of the second connecting part. Such a bolt distribution structure better meets the stress requirements and has better stability.

[0025] 7. The lower flange connecting part of the present application has a simple structure, is easier to produce and assemble. The lower flange connecting part can conveniently connect and fix the steel beam and the steel column, and the L-shaped structure of the lower flange connecting part can provide a stable supporting effect for the steel beam.

[0026] 8. The present application is provided with a fifth connecting part between the third connecting part and the fourth connecting part. The fifth connecting part provides an oblique support for the third connecting part and the fourth connecting part, making the connection between the third connecting part and the fourth connecting part more stable and the connection between the steel beam and the steel column more reliable.

[0027] 9. The fourth connecting part of the present application is located at the lower end face of the lower flange of the steel beam. The fourth connecting part does not interfere with the web, is convenient to install and easier to assemble. The contact area between the fourth connecting part and the lower flange is larger, and the connection is stable.

[0028] 10. The present application is provided with two groups of bolts on the city connection part, and the two groups of bolts are respectively arranged on both sides of the web. Such a connecting bolt structure is more scientific in stress, and has better balance and stability.

[0029] The steel beam-column joint structure of the present application has a simple structure, is extremely convenient for production and installation, can adapt to the fixed connection of steel beams and steel columns with different cross-sectional heights, the joint structure is more stable and firm, is installed through standard prefabricated connecting parts, has high production efficiency, reliable quality, convenient installation, saves cost, has clear stress and is convenient for calculation. Brief Description of the Drawings

[0030] Figure 1 : Schematic diagram of the steel beam-column connection joint structure of the present application;

[0031] Figure 2 : Schematic diagram of the connecting plate structure of the present application;

[0032] Figure 3 : Schematic diagram of the upper flange connecting part structure of the present application;

[0033] Figure 4 : Schematic diagram of the lower flange connecting part structure of the present application;

[0034] Wherein: 1 - steel column; 2 - steel beam; 3 - first connecting part; 4 - second connecting part; 5 - third connecting part; 6 - fourth connecting part; 7 - fifth connecting part; 8 - adjustable bolt hole; 9 - connecting plate. Detailed Description of the Invention

[0035] Embodiments of the present utility model will be described in detail below, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model and should not be construed as limiting the present utility model.

[0036] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

[0037] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0038] The present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] This application relates to a steel beam-column connection joint structure. The steel beam-column connection joint structure of this application is used to connect a horizontal steel beam to a vertical steel column to form a joint structure. The steel column has four sides, and a set of steel beams is correspondingly installed on each side. The specifications of the steel beams can be the same or different. The steel column 1 of this application is a square steel pipe pile arranged vertically, and the steel beam 2 is an I-shaped horizontal beam with its web arranged vertically. The cross-sectional heights of adjacent steel beams 2 are different. Steel beams 2 are provided on both the transverse sides and the longitudinal sides of the steel column 1. The different cross-sectional heights in this application refer to the inconsistent installation heights of the steel beams 2 on the sides of the steel column 1. It can be steel beams 2 of the same specification, but only with different installation heights on the sides of the steel column 1, or steel beams 2 of different specifications. For steel beams 2 of the same specification, there may be a vertical height difference between adjacent steel beams 2, and the flanges of adjacent steel beams 2 are not at the same horizontal height. For steel beams 2 of different specifications, a certain flange of adjacent steel beams 2 may be at the same horizontal height, but the other flange is at a different horizontal height, forming a steel beam-column joint structure with different cross-sectional heights.

[0040] Specifically, as Figures 1 to 4As shown in the figure, the steel beam-column connection joint structure of the present application includes an upper flange connector, a lower flange connector, and a corner connector. The upper flange connector is placed on the upper side of the steel beam 2 and fixedly connected to the upper flange plate of the steel beam 2; the lower flange connector is placed on the lower side of the steel beam 2 and is used to connect the lower flange plate of the steel beam 2 to the side surface of the steel column 1; the corner connector is arranged at the corner of the steel column 1 and is vertically adjustable and connected to the adjacent upper flange connectors on both sides, and is used to fixedly connect the adjacent upper flange connectors located on different sides of the steel column 1 and at different cross-section heights into an integral body in the horizontal direction.

[0041] The upper flange connector is a structure for connecting the upper flange of the steel beam 2, and the lower flange connector is a structure for connecting the lower flange of the steel beam 2. The upper flange connector does not have a direct connection relationship with the steel column 1. The upper flange connector is fixedly connected through the corner connectors on both sides. The corner connector can adapt to the installation and fixation of the upper flange connectors with different height differences on both sides, that is, the upper flange of the steel beam 2 in the present application does not have a direct connection relationship with the steel column 1. The lower flange connector fixes the lower flange of the steel beam 2 to the side surface of the steel column 1.

[0042] The upper flange connector and the corner connector form an annular fixed structure fixed on the four groups of steel beams 2 and surrounding the steel column 1, which is equivalent to forming an integral structure of the four groups of steel beams 2. The force on each steel beam 2 can be well transmitted and dissipated. The force borne by each steel beam 2 can be transmitted to the steel column 1 through the lower flange connector, and the structure is well stressed, and the dissipation of the force is more efficient.

[0043] During actual assembly, the upper flange connector, the lower flange connector, and the corner connector are prefabricated in the factory. First, the corresponding four groups of lower flange connectors are assembled to the side surface of the steel column 1, then the four groups of steel beams are assembled to the corresponding lower flange connectors, then the upper flange connectors are installed on the upper flanges of the four groups of steel beams, and then the corner connectors are installed between the adjacent upper flange connectors. Adjust the installation height between the upper flange connector and the corner connector so that there is no force interference between the upper flange connectors on both sides and the corner connector, and fix the upper flange connector and the corner connector to complete the assembly work of the steel beam-column connection joint.

[0044] In some embodiments of the present application, the structure of the above-mentioned corner connector is optimized in this embodiment. Specifically, as Figure 1 shown, in this embodiment, a group of corner connectors is arranged at the corner between adjacent steel beams 2. That is to say, four groups of corner connectors are arranged on the steel beam-column connection joint structure of this embodiment. Each group of corner connectors includes two connecting plates 9 connected to the upper flange connectors on both sides. The two connecting plates 9 are connected at the side to form an L-shaped connecting member. The two connecting plates 9 intersect at 90°, just fixedly connected to the upper flange connectors on both sides.

[0045] The upper flange connector in this embodiment achieves height adaptation through oblong bolt holes. For example, Figure 1 and 2 As shown, a plurality of adjustable bolt holes 8 are arranged at intervals in the horizontal direction on the connecting plate 9. The adjustable bolt holes 8 are oblong bolt holes arranged vertically. The upper flange connector is vertically adjustably connected to the connecting plate 9 through bolts passing through the adjustable bolt holes 8.

[0046] When assembling the upper flange connector and the corner connector, by adjusting the height of the bolts passing through the adjustable bolt holes 8, the bolts can pass horizontally through the screw holes on the upper flange connector and the adjustable bolt holes 8, so that the upper flange connector and the corner connector can be conveniently fixedly connected into one body.

[0047] In some other embodiments of the present application, the structure of the above-mentioned upper flange connector is optimized. For example, Figure 1 and 3 As shown, the upper flange connector includes a first connecting portion 3 bolted to the upper flange of the steel beam 2 and a second connecting portion 4 bolted to the corner connectors on both sides. Two groups of second connecting portions 4 located on both sides of the first connecting portion 3 are vertically intersecting with the first connecting portion 3 to form an I-shaped member.

[0048] The first connecting portion 3 is a plate-like structure fixed on the upper end surface of the upper flange of the steel beam 2. Two groups of bolts are provided on the first connecting portion 3, and the two groups of bolts are respectively arranged on the upper and lower sides of the second connecting portion 4.

[0049] During actual assembly, the first connecting portion 3 of the upper flange connector is arranged horizontally and attached to the upper end surface of the upper flange of the steel beam 2, so that the bolt holes on the first connecting portion 3 and the upper flange are in one-to-one correspondence. Then, bolts are driven into the bolt holes on the first connecting portion 3 and the upper flange to fix the first connecting portion 3 to the upper flange. Install the corner connector between the upper flange connectors that have been fixedly connected to the upper flange, adjust the height position of the corner connector, align the screw holes on the second connecting portions 4 on both sides with the adjustable bolt holes 8 on the connecting plate 9, and then drive bolts into the screw holes on the second connecting portions 4 and the adjustable bolt holes 8 to fixedly connect the second connecting portion 4 and the connecting plate 9 into one body.

[0050] In a further embodiment of the present application, the above-mentioned lower flange connector is optimized. Specifically, as Figure 1 and 4 As shown, the lower flange connector in this embodiment includes a third connecting portion 5 bolted to the lower flange of the steel beam 2 and a fourth connecting portion 6 bolted to the side surface of the steel column 1. The third connecting portion 5 and the fourth connecting portion 6 are vertically intersecting to form an L-shaped member.

[0051] A triangular fifth connecting part 7 for support is provided between the third connecting part 5 and the fourth connecting part 6. The fourth connecting part 6 is a plate-like structure located at the lower end face of the lower flange of the steel beam 2. The fourth connecting part 6 is provided with two groups of bolts, and the two groups of bolts are respectively arranged on both sides of the web of the steel beam 2.

[0052] In this embodiment, the third connecting part 5, the fourth connecting part 6 and the fifth connecting part 7 are all plate-like structures. Or rather, the first connecting part 3 and the second connecting part 4 described above are also plate-like structures.

[0053] The lower flange connecting piece is a component for connecting the steel beam 2 to the steel column 1. The lower flange connecting piece is an L-shaped cavity structure and can stably fix the steel beam 2 to the steel column 1. The lower flange of the steel beam 2 stably fits onto the third connecting part 5 to form a stable connecting structure.

[0054] During actual assembly, the upper flange connecting piece, the lower flange connecting piece and the corner connecting piece are prefabricated in the factory, and corresponding screw holes are opened on the steel beam 2 and the steel column 1; align the screw holes on the fourth connecting part 6 with the screw holes on the steel column 1, drive bolts into the aligned screw holes to fix the fourth connecting part 6 to the side of the steel column 1; fit the lower flange of the steel beam 2 onto the upper end face of the third connecting part 5, align the screw holes on the lower flange of the steel beam 2 with the screw holes on the third connecting part 5 one by one, drive bolts into the aligned screw holes to fix the lower flange of the steel beam 2 to the third connecting part 5; install the upper flange connecting piece on the upper flange of the steel beam 2, fit the first connecting part 3 onto the upper flange of the steel beam 2, align the screw holes on the first connecting part 3 with the screw holes on the upper flange of the steel beam 2 one by one, drive bolts into the aligned screw holes to fix the first connecting part 3 to the upper flange of the steel beam 2; install the corner connecting piece between the upper flange connecting pieces that have been fixedly connected to the upper flange, adjust the height position of the corner connecting piece to align the screw holes on the two sides of the second connecting part 4 with the adjustable bolt holes 8 on the connecting plate 9, and then drive bolts into the screw holes on the second connecting part 4 and the adjustable bolt holes 8 to fixedly connect the second connecting part 4 and the connecting plate 9 into one body. Proceed in sequence until all four groups of corner connecting pieces are installed, and complete the assembly process of the steel beam-column connection node structure.

[0055] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel beam-column connection node structure, comprising a steel column (1) and steel beams (2) disposed on both sides of the steel column (1) in the transverse direction and on both sides of the steel column (1); the steel column (1) is a square steel pipe pile arranged vertically; the steel beam (2) is an I-shaped horizontal beam with a web arranged vertically, and the cross-sectional heights of adjacent steel beams (2) are different, characterized in that: Also includes, An upper flange connector, the upper flange connector being placed on the upper side of the steel beam (2) and fixedly connected to the upper flange plate of the steel beam (2); A lower flange connector, the lower flange connector being placed on the lower side of the steel beam (2) and used to connect the lower flange plate of the steel beam (2) to the side of the steel column (1); A corner connector, which is arranged at the corner of the steel column (1) and is vertically adjustable and connected to the upper flange connectors on both sides, and is used to fix adjacent upper flange connectors located on different sides of the steel column (1) and at different cross-sectional heights into one in the horizontal direction.

2. A steel beam-column connection node structure as claimed in claim 1, characterized in that: A group of corner connectors is provided at the corners between adjacent steel beams (2), each group of corner connectors comprising two connecting plates (9) connected to the upper flange connectors on both sides, and the two connecting plates (9) are connected at the sides to form an L-shaped connecting member.

3. A steel beam-column connection node structure as claimed in claim 2, characterized in that: The connecting plate (9) is provided with a plurality of adjustable bolt holes (8) arranged at intervals in the horizontal direction; the adjustable bolt holes (8) are oblong bolt holes arranged in the vertical direction; the upper flange connecting piece is vertically adjustably connected to the connecting plate (9) by means of bolts passing through the adjustable bolt holes (8).

4. A steel beam-column connection node structure as claimed in claim 1 or 3, characterized in that: The upper flange connector comprises a first connector (3) bolted to the upper flange of the steel beam (2) and a second connector (4) bolted to the corner connectors on both sides, wherein two groups of second connectors (4) located on both sides of the first connector (3) intersect the first connector (3) perpendicularly to form an I-shaped component.

5. A steel beam-column connection node structure as claimed in claim 4, characterized in that: The first connecting portion (3) is a plate-shaped structure fixed to the upper end surface of the upper flange of the steel beam (2).

6. A steel beam-column connection node structure as claimed in claim 4, characterized in that: The first connecting portion (3) is provided with two groups of bolts, and the two groups of bolts are respectively placed on the upper and lower sides of the second connecting portion (4).

7. A steel beam-column connection node structure as claimed in claim 1, characterized in that: The lower flange connector comprises a third connecting portion (5) connected to the lower flange of the steel beam (2) by bolts, and a fourth connecting portion (6) connected to the side of the steel column (1) by bolts; the third connecting portion (5) and the fourth connecting portion (6) intersect vertically to form an L-shaped component.

8. A steel beam-column connection node structure as claimed in claim 7, characterized in that: A triangular fifth connecting portion (7) is provided between the third connecting portion (5) and the fourth connecting portion (6) for supporting.

9. A steel beam-column connection node structure as claimed in claim 7 or 8, characterized in that: The fourth connecting portion (6) is a plate-like structure located at the lower end surface of the lower flange of the steel beam (2).

10. A steel beam-column connection node structure as claimed in claim 9, characterized in that: The fourth connecting portion (6) is provided with two groups of bolts, and the two groups of bolts are respectively placed on both sides of the web of the steel beam (2).

Images