High-vanadium cable connection node structure

Abstract

The utility model discloses a high van cord connecting node structure, it includes upper ear plate, lower ear plate, upper ear plate is connected with steel column, lower ear plate is connected with base beam, and the upper end of high van cord, lower end is connected with upper ear plate, lower ear plate respectively. The utility model discloses through the cable, forms the three -dimensional lateral system of " column - cable", under the action of horizontal load, the cable provides reverse tension through pre -tension, and the lateral displacement of the column body is balanced to the lateral thrust of the column, and the roof board restricts the lateral displacement of the column body, makes up the defect that the section limited column is insufficient in lateral force, and the technical problem that the lateral force system of section limited column structure is not complete is solved.

Description

Technical Field

[0001] This utility model relates to a high-vanadium cable connection node method, which is mainly applied to buildings with limited column cross-sections and aesthetic appeal. The flexible cable and the slender column cross-section together form a vertical load transfer and lateral force resisting system in the building structure, belonging to the field of building structure engineering. Background Technology

[0002] In modern architectural design, in pursuit of aesthetic appeal, some buildings employ slender column designs. However, such buildings face numerous challenges in terms of structural load-bearing capacity. Cable-stayed structures (such as high-vanadium cables) are widely used in large-span buildings and buildings with extremely high spatial requirements due to their high strength, lightweight, and good flexibility.

[0003] Due to limitations in column cross-sectional dimensions and incomplete lateral force resisting systems, traditional lateral force resisting systems, such as shear walls and rigid frames, conflict with architectural requirements for "slender, beam-free" designs. Existing cable-stayed joints only bear vertical loads and do not collaborate with columns to form a lateral force resisting system, resulting in weak overall lateral force resisting performance of the building. Therefore, traditional cable-stayed joints have the following problems:

[0004] 1. Stress concentration problem: Stress concentration is prone to occur at the connection between the cable and the main structure, leading to fatigue failure, especially under earthquake and wind vibration.

[0005] 2. Inconvenient construction and maintenance: The node structure is complex, the installation accuracy requirements are high, and the cost of dismantling part of the structure is high when maintaining and replacing cables.

[0006] 3. The forms are too limited and cannot meet the requirements for high-quality appearance design. Summary of the Invention

[0007] The technical problem to be solved by this utility model is that the lateral force resisting system of the column structure with limited cross-section is incomplete due to the limited lateral force resisting of the column itself caused by the structural limitation of the column cross-section.

[0008] To solve the above problems, this utility model provides the following technical solution:

[0009] A high-vanadium cable connection node structure includes an upper ear plate and a lower ear plate. The upper ear plate is connected to a steel column, and the lower ear plate is connected to a foundation beam. The upper and lower ends of the high-vanadium cable are connected to the upper ear plate and the lower ear plate, respectively.

[0010] Preferably, both the upper and lower ear plates are provided with connecting holes, and the high-vanadium cable is connected to the upper and lower ear plates by a pin.

[0011] Preferably, the exposed portion of the steel column is coated with anti-rust paint.

[0012] Preferably, the bottom of the lower ear plate is provided with a base, which is connected to the foundation beam by anchor bolts.

[0013] More preferably, the base is made of C40 fine aggregate concrete.

[0014] More preferably, the foundation beam includes a bottom frame beam located within the building floor, a building surface layer is provided on the upper surface of the building floor, the upper half of the base is located within the building surface layer, the lower half is located within the building floor, and the lower ear plate protrudes from the upper surface of the building surface layer and is connected to the high vanadium cable.

[0015] Furthermore, a connecting plate is provided on the upper and lower sides of the bottom frame beam, and the outer side of the connecting plate is connected by two pairs of anchor bolts.

[0016] Preferably, the high-vanadium cable is provided with an anchor at its end for connection with the upper or lower ear plate.

[0017] This utility model forms a three-dimensional lateral resistance system of "column-cable" through cables. Under horizontal load, the cables provide reverse tension through pretension to balance the lateral thrust of the column. At the same time, the roof panel restricts the lateral displacement of the column, making up for the deficiency of insufficient lateral resistance of the column with limited cross-section, and solving the technical problem of incomplete lateral resistance system of column structure with limited cross-section.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] Safety: High strength and high ductility work together to enhance resistance to damage; precise pre-tension control ensures structural stress balance.

[0020] Adaptability: The anchor head and connection node are precisely matched to improve installation efficiency; the length and diameter are customized to fit special building shapes.

[0021] Economic efficiency: High-efficiency utilization of material properties reduces component redundancy; improved maintenance convenience reduces subsequent investment.

[0022] Aesthetics: The combination of slender column sections and flexible cables enhances the building's aesthetics. Attached Figure Description

[0023] Figure 1 This is a schematic diagram showing the connection between the upper end of the high-vanadium cable and the steel column in this utility model;

[0024] Figure 2 This is a schematic diagram of the upper ear plate;

[0025] Figure 3 This is a schematic diagram showing the connection between the lower end of the high-vanadium cable and the foundation beam in this utility model;

[0026] Figure 4 This is a schematic diagram showing the connection between the lower ear plate and the foundation beam;

[0027] Figure 5 This is a schematic diagram of the lower ear plate.

[0028] Figures 1-5 In the middle: 1-steel column, 2-pin shaft, 3-high vanadium cable, 4-upper ear plate, 5-lower ear plate, 6-anchor bolt. Detailed Implementation

[0029] To make this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings.

[0030] Example

[0031] like Figures 1-5 As shown, this utility model provides a high-vanadium cable connection node structure, which includes an upper ear plate 4 and a lower ear plate 5. The upper ear plate 4 is connected to the steel column 1, and the lower ear plate 5 is connected to the foundation beam. The upper and lower ends of the high-vanadium cable 3 are connected to the upper ear plate 4 and the lower ear plate 5, respectively. Both the upper ear plate 4 and the lower ear plate 5 are provided with connection holes, and the high-vanadium cable 3 is connected to the upper ear plate 4 and the lower ear plate 5 by a pin 2. The upper ear plate... Figure 2 As shown, the steel column 1 is positioned towards the high-vanadium cable 3. Only two connection holes are shown in this embodiment. The lower ear plate is as follows... Figure 5 As shown, four connecting holes are provided, which are symmetrical and extend upwards from the foundation beam to both sides, forming a Y-shaped structure. The ends of the high-vanadium cable 3 are provided with anchors for connecting to the upper ear plate 4 or the lower ear plate 5.

[0032] The exposed portion of steel column 1 is coated with anti-rust paint. The cross-sectional dimensions of the steel column and the type of high-vanadium cable are determined by structural calculations. The angle of the high-vanadium cable is determined by layout based on the structural span and height, and then the approximate shape of the ear plate is determined. The appearance dimensions of the ear plate are adjusted to meet the requirements of architectural aesthetics.

[0033] like Figure 3 , 4 As shown, the bottom of the lower ear plate 5 is provided with a base 10, which is connected to the foundation beam by anchor bolts 6. The base is made of C40 fine aggregate concrete. The foundation beam includes a bottom frame beam 7 located within the building floor 8. The upper surface of the building floor 8 is provided with a building surface layer 9. The upper half of the base 10 is located within the building surface layer 9, and the lower half is located within the building floor 8. The lower ear plate 5 protrudes from the upper surface of the building surface layer 9 and is connected to the high-vanadium cable 3. A connecting plate is provided on the upper and lower sides of the bottom frame beam 7, and the outer sides of the connecting plates are connected by two pairs of anchor bolts 6. The angle of the cable is determined by layout according to the structural span, foundation beam height and position, and then the size and shape of the four high-vanadium cable fasteners on the ear plate are determined. Finally, the appearance dimensions of the ear plate are adjusted according to the layout of the cable on both sides of the ear plate and the requirements of architectural aesthetics.

[0034] like Figure 3 As shown, considering the requirements for corrosion protection and architectural aesthetics at the connection between the lower end of the high-vanadium cable and the foundation concrete beam, plain concrete is used for corrosion protection and encapsulation within the building surface layer, which is compatible with the architectural aesthetics.

[0035] In the above structure, the steel columns are usually solid square steel columns, and the dimensions are determined according to the structural calculations, but the cross-sectional dimensions are relatively small, with most side lengths less than 300mm.

[0036] The high-vanadium cable and high-vanadium coated cable are made of high-quality, high-strength carbon steel. Their dimensions, shape, weight, mechanical properties, and chemical composition conform to the national standard "Hot-dip Galvanized Steel Wire for Bridge Cables" (GB / T17101). The tensile strength standard value of the steel wire is ≥1670 N / mm². 2 The high-vanadium coated cable has a zinc-5% aluminum-mixed rare earth alloy coating; the quality of the high-vanadium coated cable and its anchorages meets the requirements of the national standard "Technical Conditions for Hot-Extruded Polyethylene High-Strength Steel Wire Cables for Cable-Stayed Bridges" (GB / T18365-2001), and the elastic modulus of the high-vanadium coated cable is ≥1.60×10⁻⁶. 5 MPa.

[0037] The anchorages for high-vanadium coated cables are made of castings or forgings, and their chemical composition and mechanical properties comply with the provisions of "Large Low Alloy Steel Castings" (JB / T6402-2006) and "Alloy Structural Steel" (GBT3077); the connection between the anchorage and the cable is a hot-cast anchorage; the surface of the cable anchorage is galvanized, and the thickness of the galvanized layer is 10-30 μm.

[0038] Furthermore, the diameter of the high-vanadium cable is adapted to the aperture of the cat-claw type cable lug. The diameter of the high-vanadium cable is 1-2 mm smaller than the aperture of the lug, which, together with the pin, enables flexible rotation and avoids additional stress caused by hard contact.

[0039] Furthermore, the cable length is determined based on the structural span and installation height. Before leaving the factory, it needs to be customized according to the actual measured dimensions on site. The length deviation is <±L / 1000 (L is the cable design length), and the relative position deviation between the two anchor heads is ≤2mm to ensure installation accuracy.

[0040] This utility model discloses a high-vanadium cable connection node design. By employing an innovative ear-plate design, it overcomes the shortcomings of existing high-vanadium cable connection nodes, such as their limited form and inability to meet high aesthetic design requirements. The technical solution of this utility model, through the rational arrangement of nodes, forms a reasonable, simple, and aesthetically pleasing structure, meeting practical usage needs such as easy installation and attractive appearance.

Claims

1. A high-vanadium cable connection node structure, characterized in that, It includes an upper ear plate (4) and a lower ear plate (5). The upper ear plate (4) is connected to the steel column (1), and the lower ear plate (5) is connected to the foundation beam. The upper and lower ends of the high vanadium cable (3) are connected to the upper ear plate (4) and the lower ear plate (5) respectively.

2. The high-vanadium cable connection node structure as described in claim 1, characterized in that, The upper ear plate (4) and lower ear plate (5) are provided with connecting holes, and the high vanadium cable (3) is connected to the upper ear plate (4) and lower ear plate (5) through a pin (2).

3. The high-vanadium cable connection node structure as described in claim 1, characterized in that, The exposed portion of the steel column (1) is coated with anti-rust paint.

4. The high-vanadium cable connection node structure as described in claim 1, characterized in that, The bottom of the lower ear plate (5) is provided with a base (10), and the base (10) is connected to the foundation beam by anchor bolts (6).

5. The high-vanadium cable connection node structure as described in claim 4, characterized in that, The base is made of C40 fine aggregate concrete.

6. The high-vanadium cable connection node structure as described in claim 4, characterized in that, The foundation beam includes a bottom frame beam (7) located within the building floor (8). The upper surface of the building floor (8) is provided with a building surface layer (9). The upper half of the base (10) is located within the building surface layer (9), and the lower half is located within the building floor (8). The lower ear plate (5) protrudes from the upper surface of the building surface layer (9) and is connected to the high vanadium cable (3).

7. The high-vanadium cable connection node structure as described in claim 6, characterized in that, The bottom frame beam (7) is provided with a connecting plate on the upper and lower sides respectively, and the outer side of the connecting plate is connected by two pairs of anchor bolts (6).

8. The high-vanadium cable connection node structure as described in claim 1, characterized in that, The high-vanadium cable (3) is provided with an anchor at its end for connection with the upper ear plate (4) or the lower ear plate (5).

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