An electrified railway fabricated lattice steel prop

Abstract

This invention proposes a prefabricated lattice steel support column for electrified railways to solve the problems of poor load-bearing capacity, low splicing accuracy, and long construction time of current lattice steel supports. The prefabricated lattice steel support column for electrified railways includes several main support member groups, each containing a core column. The lowest core column is mounted on a base. Main support members are symmetrically arranged on both sides of the core column. The upper and lower ends of the main support members are connected to the core column via several connecting rods. A connecting plate is provided on the core column, and its two sides are connected to the main support members. A support plate is provided on the top of the main support members, and the support plate is screwed to the core column. Several limiting rods are slidably provided at both ends of the connecting plate, with one end screwed to the base and the other end screwed to the support plate. This invention improves the load-bearing capacity of the lattice steel support column and facilitates construction by workers.

Description

Technical Field

[0001] This invention relates to the field of lattice steel technology, and in particular to a prefabricated lattice steel support column for electrified railways. Background Technology

[0002] Lattice steel columns are a type of steel support mainly assembled from angle steel, connecting plates, and base plates. They offer advantages such as rational stress distribution, high lateral stiffness, economy, and aesthetics. Furthermore, they allow for the reinforcement and expansion of existing lattice steel columns without affecting new ones, making them a promising candidate for widespread application in electrified overhead contact line projects.

[0003] Due to the varying thickness of the material, lattice steel columns are prone to deformation and bending during welding, which is difficult to correct. This reduces the bending resistance of the lattice steel columns under the same axial resistance, thus affecting their load-bearing capacity. Furthermore, lattice steel columns consist of numerous assembled components, each requiring precise positioning to ensure construction accuracy, which is time-consuming. The components also require multiple hoisting operations for workers to assemble at height, resulting in prolonged construction time and difficulties for workers in the assembly process. Summary of the Invention

[0004] This invention proposes a prefabricated lattice steel support for electrified railways, which solves the problems of poor load-bearing capacity, low splicing accuracy, and long construction time of current lattice steel supports.

[0005] The technical solution of this invention is implemented as follows:

[0006] An electrified railway prefabricated lattice steel support column includes several support column groups. Each support column group includes a core column, with the lowest core column mounted on a base. Support columns are symmetrically arranged on both sides of the core column. The upper and lower ends of the support columns are connected to the core column by several connecting rods. A connecting plate is provided on the core column, and the two sides of the connecting plate are connected to the support column. A support plate is provided on the top of the support column, and the support plate is screwed to the core column. Several limiting rods are slidably provided at both ends of the connecting plate. One end of the limiting rod is screwed to the base, and the other end is screwed to the support plate.

[0007] The connecting plate has several diagonal braces screwed to its upper and lower ends. These diagonal braces are used to connect the included angles between the connecting rod and the support column, and between the core column and the connecting plate, further improving the connection strength between the core column and the support column.

[0008] The base is equipped with a T-shaped column that slides on it. The T-shaped column is slidably engaged with the support column. One side of the support column has a slider, and the other side has a groove. The top of the T-shaped column is equipped with a traction machine for lifting the support column. Several reinforcing rods are screwed onto the T-shaped column and are screwed onto the support column with the groove. The T-shaped column can further distribute the force on the support column, making the support column more stable. At the same time, it can facilitate the installation and movement of the support column, making it easier for workers to install and improving installation efficiency.

[0009] The base has a concrete pouring chamber at its lower end, and a foundation bolt is installed inside the concrete pouring chamber. The foundation bolt passes through the concrete pouring chamber and has a material seepage port. The base has a channel that communicates with the foundation bolt, which facilitates the construction and fixing of the base. The foundation bolt further increases the fixing depth of the base and improves its stability.

[0010] The base and the upper and lower ends of the support plate are provided with several screw holes for the limiting rod. The screw holes that are opposite to each other have opposite thread directions, and the distance between two screw holes is greater than the length of the limiting rod.

[0011] Among them, auxiliary angle steel is provided between the column and the support plate, which further improves the connection strength between the upper and lower columns and enhances the tensile strength.

[0012] Beneficial effects

[0013] This invention, by setting a core column and a connecting plate on the core column, and simultaneously setting a limiting rod to connect the base, connecting plate and support plate, allows the force on the two end supports to be borne by the core column, dispersing the axial resistance of the supports and improving the load-bearing capacity of the supports. The core column and connecting plate improve the connection strength of the two side supports, thereby improving the overall tensile strength, forming a triple stress point and improving the stability of the supports. The snap-fit ​​holes and screw holes on the core column, as well as the limiting rod and screw holes, facilitate workers to install and position the various components, improve installation accuracy, and allow the entire lattice steel support to be divided into several sections for assembly or assembled from individual components as needed, making construction convenient and reducing construction time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the present invention;

[0016] Figure 2This is a top view of the support column and connecting plate. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1

[0019] like Figure 1 As shown, an electrified railway prefabricated lattice steel support column includes a support column assembly, which includes a core column. The lowest core column is screwed onto a base. Support columns 2 are symmetrically arranged on both sides of the core column 7. The upper and lower ends of the support columns 2 are connected to the core column 7 by several connecting rods 8 in a star shape. A connecting plate 6 is provided on the core column 7. The two sides of the connecting plate 6 are connected to the support columns 2. A support plate 9 is provided on the top of the support column 2. The support plate 9 is screwed onto the core column 7 through a screw interface 15. Several limiting rods 4 are slidably provided at both ends of the connecting plate 6. One end of the limiting rod 4 is screwed onto the base 1, and the other end is screwed onto the support plate 9. Several screw holes 5 for the limiting rods 4 are provided on the base 1 and the upper and lower ends of the support plate 9. The screw holes 5 with opposite threads are arranged in opposite directions, and the distance between two screw holes 5 is greater than the length of the limiting rod 4.

[0020] The working process of this embodiment is as follows: First, fix the base 1, then place a section of the support column assembly on the base 1. First, screw the core column 7 to the base 1, then place the support columns 2 on both sides, and simultaneously engage the support column 2 with the connecting rod 8 and connecting plate 6 on the core column 7. Then, let the limiting rod 4 pass through the connecting plate 6, rotate the limiting rod 4 in the forward direction and screw it onto the base 1. Then, place the support plate 9 on the upper end of the support column assembly and screw it onto the core column 7. Then, rotate the limiting rod 4 in the reverse direction so that the upper end of the limiting rod 4 is also screwed onto the support plate 9. One support column assembly is completed. Then, use the support plate 9 as the base 1 of the next support column assembly and assemble them one by one.

[0021] Example 2

[0022] Preferably, the upper and lower ends of the connecting plate 6 are screwed with several diagonal braces 3. The diagonal braces 3 are used to connect the included angle between the connecting rod 8 and the support column 2 and the included angle between the core column 7 and the connecting plate 6, further improving the connection strength between the core column 7 and the support column 2. A T-shaped column 13 is slidably provided on the base 1. The T-shaped column 13 is slidably engaged with the support column 2. A slider 10 is provided on one side of the support column 2, and a sliding groove 11 is provided on the other side of the support column 2. A traction machine 12 for lifting the support column 2 is provided at the top of the T-shaped column 13. Several reinforcing rods 14 are screwed onto the T-shaped column 13. The reinforcing rods 14 are screwed with the support column 2 with the sliding groove 11. By moving the T-shaped column 13, one side of the assembled support column is engaged with the T-shaped column 13, and the other side is engaged with the sliding groove 11 through the slider 10. Then, the support column assembly is lifted by the traction machine 12. Once the appropriate height is reached, rotate the reinforcing rod 14 to move the support column assembly to the installation position. The reinforcing rod 14 then resets. After all the support columns are assembled, rotate the reinforcing rod 14 and screw it onto one side of the support column 2. The lower end of the base 1 is provided with a concrete pouring chamber 17, and a pouring foundation bolt 18 is provided inside the concrete pouring chamber 17. The pouring foundation bolt 18 penetrates the concrete pouring chamber 17 and has a seepage port. The base 1 is provided with a channel 16 that communicates with the pouring foundation bolt 18, which facilitates the construction and fixing of the base 1. The pouring foundation bolt 18 further increases the fixing depth of the base 1 and improves the stability of the base 1. An auxiliary angle steel 19 is provided between the support column 2 and the support plate 9, which further improves the connection strength between the upper and lower support columns 2 and enhances the tensile strength.

[0023] The other structures in this embodiment are the same as in Embodiment 1.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fabricated lattice steel prop for electrified railways comprising a number of prop sets, characterised in that: The support assembly includes a core column (7), with the lowest core column (7) mounted on the base (1). Support columns (2) are symmetrically arranged on both sides of the core column (7). The upper and lower ends of the support columns (2) are connected to the core column (7) by several connecting rods (8). A connecting plate (6) is provided on the core column (7). The two sides of the connecting plate (6) are connected to the support columns (2). A support plate (9) is provided on the top of the support column (2). The support plate (9) is screwed to the core column (7). Several limiting rods (4) are slidably provided at both ends of the connecting plate (6). One end of the limiting rod (4) is screwed to the base (1), and the other end is screwed to the support plate (9).

2. The electrified railway fabricated lattice steel column according to claim 1, characterized in that: Several diagonal braces (3) are screwed to the upper and lower ends of the connecting plate (6). The diagonal braces (3) are used to connect the included angle between the connecting rod (8) and the support column (2) and the included angle between the core column (7) and the connecting plate (6).

3. The electrified railway fabricated lattice steel column according to claim 1, characterized in that: A T-shaped column (13) is slidably provided on the base (1). The T-shaped column (13) is slidably engaged with the support column (2). A slider (10) is provided on one side of the support column (2), and a groove (11) is provided on the other side of the support column (2). A traction machine (12) for lifting the support column (2) is provided on the top of the T-shaped column (13). Several reinforcing rods (14) are screwed onto the T-shaped column (13). The reinforcing rods (14) are screwed onto the support column (2) with the groove (11).

4. The electrified railway fabricated lattice steel column of claim 1, wherein: The lower end of the base (1) is provided with a concrete pouring chamber (17), and a pouring foundation bolt (18) is provided inside the concrete pouring chamber (17). The pouring foundation bolt (18) passes through the concrete pouring chamber (17), and a seepage port is provided on the pouring foundation bolt (18). The base (1) is provided with a channel (16) connected to the pouring foundation bolt (18).

5. The electrified railway fabricated lattice steel column of claim 1, wherein: The base (1) and the upper and lower ends of the support plate (9) are provided with several screw holes (5) for the limiting rod (4). The screw holes (5) that are opposite to each other have opposite thread directions, and the distance between the two screw holes (5) is greater than the length of the limiting rod (4).

6. The electrified railway fabricated lattice steel column of claim 1, wherein: An auxiliary angle steel (19) is provided between the support column (2) and the support plate (9).

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