Umbrella-shaped steel structure tower crown suitable for bridge tower column and mounting operation method of umbrella-shaped steel structure tower crown

Abstract

The invention discloses an umbrella-shaped steel structure tower crown suitable for a bridge tower column and an installation operation method of the umbrella-shaped steel structure tower crown. The tower crown comprises a plurality of sets of supporting stand columns 2 circumferentially anchored to ventilation openings in the top of the tower column 1, radial beams 5 vertically and fixedly arranged on the tops of the supporting stand columns 2, and oblique supporting assemblies 8 used for enhancing the connection strength of the radial beams 5 and the supporting stand columns 2. The annular support beam group 3 is used for connecting the plurality of groups of support upright posts 2 and the radial beams 5 into a whole, and the enclosure mechanism 4 is arranged on the periphery of the radial beams 5 and is used for sealing the tower column 1; wherein the circumferential supporting beam group 3 comprises a top ring beam 31, and the top ring beam 31 connects a plurality of radial beams 5 which are arranged in a radial shape into a whole, so that a tower crown supporting steel structure at the top of the tower column 1 is an umbrella-shaped steel structure, the overall stability of the tower crown structure is enhanced, loads can be uniformly transmitted to the umbrella-shaped steel structure of the tower crown, impact loads can be effectively counteracted, and the service life of the tower column 1 is prolonged. And in cooperation with the light-transmitting enclosure mechanism 4, the functions of illumination and sightseeing are expanded, and the requirements of development at the present stage are met.

Description

Technical Field

[0001] The present invention belongs to the technical field of tower crowns, and more specifically, relates to an umbrella-shaped steel structure tower crown suitable for a bridge tower column and an installation method thereof. Background Art

[0002] The bridge tower is a vertical component of the bridge. Due to its visual impact, the tower structure is an important landscape component of the bridge structure, and often determines the landscape tone of the bridge. The tower crown is located at the top of the tower, and its landscape importance is self-evident. In recent years, in the field of architecture, the decoration of curtain walls and lighting has developed relatively maturely. As an important infrastructure in the region, the coordination of bridges with the surrounding environment while not deviating from the essence of bridges will also become a trend in the subsequent development of bridges. At the same time, with the improvement of people's living standards, people's desire to perceive the surrounding environment has gradually become stronger, so the demand for sightseeing is increasing. Bridge structures are generally built in areas with open views. The tower column structure rises into the clouds, and the tower crown is an excellent sightseeing spot. This research on a tower crown structure with a safe structure, economic durability, and beautiful appearance is of great value.

[0003] At present, the materials used for tower column structures are generally pure concrete or pure steel. The tower crown generally uses the same type of material as the tower column structure. Its functional requirements are limited to the force requirements. It is often silent in the dark and has no breath of modern society.

[0004] Therefore, at this stage, there is an urgent need for a functional component for a bridge tower crown, which can overcome the shortcomings of the existing technology in functional embodiment, can effectively solve the single function of the bridge tower crown, and at the same time has the advantages of good integrity, simple construction, high safety and strong functionality. Summary of the invention

[0005] In view of the problems of single function and complicated construction of bridge tower crowns in the prior art, the present invention provides an umbrella-shaped steel structure tower crown suitable for bridge tower columns and an installation method thereof to solve such problems.

[0006] To achieve the above-mentioned purpose, the present invention provides an umbrella-shaped steel structure tower crown suitable for bridge tower columns, comprising a plurality of groups of support columns circumferentially anchored at the vents at the top of the tower column, a spoke beam vertically fixed at the top of the support column, an oblique support assembly for strengthening the connection strength between the spoke beam and the support column, an annular support beam group connecting the plurality of groups of support columns and the spoke beams as one, and an enclosure mechanism arranged at the periphery of the spoke beam to close the tower column, the enclosure mechanism being made of high-strength transparent lightweight material; wherein the annular support beam group comprises a top ring beam, and the top ring beam connects a plurality of radially arranged spoke beams as one, so that the tower crown support steel structure at the top of the tower column is an umbrella-shaped steel structure.

[0007] Furthermore, the annular support beam group includes a top ring beam and a column connecting ring beam; the top ring beam connects multiple groups of spoke beams into one, which includes a reinforcing ring beam and a secondary ring beam, and the reinforcing ring beam is provided with one or more groups, which are arranged in a ring shape, and respectively connect the rear end rods of multiple spoke beams into one; the secondary ring beam has a smaller diameter than the reinforcing ring beam, and multiple groups are arranged in a ring shape, connecting the front end rods of multiple groups of spoke beams into one; the column connecting ring beam is arranged in a ring shape, connecting multiple groups of supporting columns into one.

[0008] Furthermore, the top ring beam is installed and fixed on the spoke beam so that the center of gravity of the spoke beam is located on the top of the supporting column.

[0009] Furthermore, the spoke beam is used to support the top of the enclosure structure, is horizontally arranged, and the bottom of the rod body is fixedly connected to the bottom of the supporting column by welding or bolting; multiple spoke beams are arranged radially, and their rod bodies point to the central axis of the tower column.

[0010] Furthermore, the spoke beam at the front end of the supporting column has a longer shaft length than the rear end shaft length, so that there is sufficient effective space at the bottom of the umbrella-shaped steel structure of the tower crown, which is convenient for the subsequent construction of the enclosure mechanism and the installation of related lighting decorations.

[0011] Furthermore, the oblique support assembly includes a first support rod and a second support rod; one end of the first support rod is fixedly connected to the front side of the support column, and the other end is fixedly connected to the bottom of the front end of the spoke beam; one end of the second support rod is fixedly connected to the rear side of the support column, and the other end is fixedly connected to the bottom of the rear end of the spoke beam.

[0012] Furthermore, the enclosure mechanism includes side enclosures and top enclosures; the side enclosures are arranged at the top of the tower column, located at the front end of the spoke beam, the bottom of which is fixed by a enclosure anchor assembly, and the top of which is connected and fixed by an enclosure connector provided at the front end of the spoke beam body; the top enclosure is connected and fixed by an enclosure connector provided at the top of the spoke beam.

[0013] Furthermore, the bottom of the supporting column is anchored to the top of the tower column through a column anchoring assembly, and the column anchoring assembly includes a first anchor rod, a first bottom anchor plate and a first top anchor plate, wherein the first bottom anchor plate is pre-buried at a corresponding depth in the tower column, and a plurality of first anchor rods are fixed on the top thereof by welding; the first anchor rod passes through the tower column and is fixedly connected to the first top anchor plate; the middle part of the top of the first top anchor plate is fixedly connected to the supporting column by welding.

[0014] Furthermore, the bottom of the side enclosure is fixed by a enclosure anchor assembly, which includes a second anchor rod, a second bottom anchor plate and a second top anchor plate; the second bottom anchor plate is pre-buried at a corresponding depth in the tower column, and a plurality of second anchor rods are fixed on the top by welding; the second anchor rod passes through the tower column and is fixedly connected to the second top anchor plate; a enclosure connector is provided on the top of the second top anchor plate for connecting and fixing the bottom of the side enclosure.

[0015] According to another aspect of the present invention, there is also provided a method for installing an umbrella-shaped steel structure tower crown suitable for a bridge tower column, comprising the following steps:

[0016] S100: When pouring the top of the tower column, the column anchoring components and the enclosure anchoring components are pre-buried in the corresponding places;

[0017] S200: Anchoring multiple groups of supporting columns through column anchoring assemblies;

[0018] S300: Install and fix the spoke beam on the top of the supporting column so that its shaft points to the central axis of the tower column;

[0019] S400: Install a first support rod and a second support rod, so that the first support rod is connected to the front end of the spoke beam and the front side of the support column, and the second support rod is connected to the rear end of the spoke beam and the rear side of the support column;

[0020] S500: Install the column body connecting ring beam to connect multiple groups of supporting columns into one;

[0021] S600: Install the reinforced ring beam and the secondary ring beam so that the multiple spoke beams are connected as one and the center of gravity is located at the top of the supporting column;

[0022] S700: hoist the side enclosure, and fix its bottom to the enclosure anchor assembly through the enclosure connector, and fix its top to the front end of the spoke beam through the enclosure connector;

[0023] S800: hoist the top enclosure and fix it to the top of the spoke beam through the enclosure connector;

[0024] S900: Seal the gap between the side enclosure and the top enclosure with glue to complete the installation of the tower crown.

[0025] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0026] 1. The umbrella-shaped steel structure tower crown of the present invention is provided with a circumferential support beam group to connect multiple groups of spoke beams and supporting columns into one, thereby enhancing the overall stability of the tower crown structure. Through its circumferential design, when the enclosure structure is subjected to external forces (such as various wind direction forces at the top of the tower column), the load can be evenly transferred to the umbrella-shaped steel structure of the tower crown, which can effectively offset the impact load and enhance the applicability of the tower crown in the harsh environment at the top of the tower column. At the same time, through the circumferential design of the circumferential support beam group, there is enough effective space at the bottom of the umbrella-shaped steel structure of the tower crown, which is convenient for the subsequent construction of the enclosure structure and the installation of related lighting decorations.

[0027] 2. The umbrella-shaped steel structure tower crown of the present invention adopts a combination of an umbrella-like integral steel structure and a light-transmitting enclosure structure to expand the functionality of the tower crown, mainly to expand its lighting and sightseeing functionality, greatly enhance the landscape effect and practical function of the bridge tower, and meet the needs of current development; the shape of the tower crown can be adjusted according to needs, and it has strong applicability.

[0028] 3. The umbrella-shaped steel structure tower crown of the present invention can be manufactured as a whole and then hoisted or assembled on-site according to construction requirements, which improves the convenience and adaptability of construction. At the same time, combined with high-performance new materials, the tower crown structure can be made lighter and more novel, meeting the needs of modern aesthetics.

[0029] 4. The umbrella-shaped steel structure tower crown of the present invention draws on the decoration technology of curtain walls and lights in the construction field and applies it to the tower crown of the bridge, which can enhance the unity of urban bridges and buildings and has a strong contemporary feature. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of an umbrella-shaped steel structure tower crown suitable for a bridge tower column in an embodiment of the present invention;

[0031] Figure 2 It is a cross-sectional view of an umbrella-like steel structure tower crown in an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure in which a supporting column is anchored to a tower column in an embodiment of the present invention;

[0033] Figure 4 It is a schematic diagram of the connection between the supporting column and the column shaft connecting ring beam in an embodiment of the present invention;

[0034] Figure 5 This is a schematic diagram of the structure of the top ring beam in an embodiment of the present invention;

[0035] Figure 6 It is a flowchart of the installation method of the umbrella-shaped steel structure tower crown in an embodiment of the present invention.

[0036] In all the drawings, the same figure marks represent the same technical features, specifically: 1-tower column, 2-supporting column, 3-annular support beam group, 31-top ring beam, 311-reinforced ring beam, 312-auxiliary ring beam, 32-column body connecting ring beam, 4-enclosure mechanism, 41-side enclosure, 42-top enclosure, 5-spoke beam, 6-column anchor assembly, 61-first anchor rod, 62-first bottom anchor plate, 63-first top anchor plate, 7-enclosure anchor assembly, 71-second anchor rod, 72-second bottom anchor plate, 73-second top anchor plate, 8-oblique support assembly, 81-first support rod, 82-second support rod, 9-enclosure connector. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0038] like Figure 1-5 As shown, the present invention provides an umbrella-shaped steel structure tower crown suitable for bridge tower columns, comprising a plurality of groups of support columns 2 circumferentially anchored at the ventilation openings at the top of the tower column 1, a spoke beam 5 vertically fixed at the top of the support column 2, an oblique support assembly 8 for strengthening the connection strength between the spoke beam 5 and the support column 2, an annular support beam group 3 connecting the plurality of groups of support columns 2 and the spoke beam 5 as one body, and an enclosure mechanism 4 arranged at the periphery of the spoke beam 5 to close the tower column 1; wherein, the annular support beam group 3 comprises a top ring beam 31, and the top ring beam 31 connects a plurality of radially arranged spoke beams 5 as one body, so that the tower crown supporting steel structure at the top of the tower column 1 is an umbrella-shaped steel structure, and cooperates with the light-transmitting enclosure mechanism 4, while ensuring the stability of the overall structure of the tower crown, its lighting and sightseeing functionality is expanded, greatly improving the landscape effect and practical function of the bridge tower, and meeting the development needs at this stage. The umbrella-shaped steel structure tower crown of the present invention expands the functionality of the tower crown by combining an umbrella-like integral steel structure with a light-transmitting enclosure structure, mainly expanding its lighting and sightseeing functionality, greatly improving the landscape effect and practical function of the bridge tower, and meeting the needs of current development; the shape of the tower crown can be adjusted according to needs, and it has strong applicability.

[0039] like Figure 1-2As shown, in the embodiment of the present invention, the support column 2 is used to support the corresponding structure of the tower crown to prevent the tower crown from being damaged by external forces. It is supported by high-strength square steel and is circumferentially arranged at the vent at the top of the tower column 1; further, the bottom of the support column 2 is anchored to the top of the tower column 1 through a column anchoring assembly 6, and the column anchoring assembly 6 includes a first anchor rod 61, a first bottom anchor plate 62 and a first top anchor plate 63, wherein the first bottom anchor plate 62 is pre-buried at a corresponding depth in the tower column 1, and a plurality of first anchor rods 61 are fixedly arranged on the top of the first anchor plate 62 by welding; the first anchor rod 61 passes through the tower column 1 and is fixedly connected to the first top anchor plate 63; the middle of the top of the first top anchor plate 63 is fixedly connected to the support column 2 by welding. Preferably, a threaded portion is provided on the top of the first anchor rod 61, which passes through the first top anchor plate 63 and is threadedly connected to a nut, so that the first top anchor plate 63 is pressed and fixed to the top of the tower column 1, thereby improving the installation and disassembly efficiency of the support column 2 and facilitating the construction of operators.

[0040] The spoke beam 5 is used to support the top of the enclosure 4. It is horizontally arranged, and the bottom of the rod is fixedly connected to the bottom of the support column 2 by welding or bolting. Furthermore, multiple spoke beams 5 are arranged radially, and their rods point to the central axis of the tower column 1. Furthermore, the length of the rod of the spoke beam 5 located at the front end of the support column 2 is greater than that of the rod at the rear end, so that there is enough effective space at the bottom of the umbrella-shaped steel structure of the tower crown, which is convenient for the later construction of the enclosure 4 and the installation of related lighting decorations.

[0041] In order to enhance the load capacity of the spoke beam 5, an oblique support assembly 8 is provided between the spoke beam 5 and the support column 2, thereby supporting the front and rear ends of the bottom of the spoke beam 5, thereby greatly enhancing the load capacity of the spoke beam 5. The oblique support assembly 8 comprises a first support rod 81 and a second support rod 82; one end of the first support rod 81 is fixedly connected to the front side of the column body of the support column 2, and the other end is fixedly connected to the bottom of the front end of the spoke beam 5, thereby forming a triangular structure, so that the pressure on the top of the spoke beam 5 is dispersed to the first support rod 81 and the support column 2, thereby enhancing the stability of the overall structure; one end of the second support rod 82 is fixedly connected to the rear side of the column body of the support column 2, and the other end is fixedly connected to the bottom of the rear end of the spoke beam 5, thereby forming a triangular structure, so that the pressure on the top of the spoke beam 5 is dispersed to the first support rod 81 and the support column 2, thereby enhancing the stability of the overall structure.

[0042] In order to connect the multiple groups of spoke beams 5 and the supporting columns 2 as a whole and enhance the overall stability of the tower crown structure, a circumferential supporting beam group 3 is provided to respectively fix and connect the multiple groups of spoke beams 5 and the supporting columns 2. The annular support beam group 3 includes a top ring beam 31 and a column connecting ring beam 32; wherein the top ring beam 31 connects multiple groups of spoke beams 5 into one, and includes a reinforcing ring beam 311 and a secondary ring beam 312. The reinforcing ring beam 311 is provided with 2 or more groups, which are arranged in a ring shape, and respectively connect the rear end shafts of multiple spoke beams 5 into one; the diameter of the secondary ring beam 312 is smaller than the diameter of the reinforcing ring beam 311, which greatly reduces the load borne by the front end shaft of the spoke beam 5. Multiple groups of the secondary ring beam 312 are arranged in a ring shape, and the front end shafts of multiple groups of spoke beams 5 are connected into one; further, the weight of the rear end shaft of the spoke beam 5 equipped with the reinforcing ring beam 311 is consistent with the weight of the front end shaft of the spoke beam 5 equipped with the secondary ring beam 312, so that the center of gravity of the spoke beam 5 fixedly installed with the top ring beam 31 is located at the top of the supporting column 2, ensuring the support balance of the top of the supporting column 2 and avoiding the overturning of the spoke beam 5 due to uneven force. The column body connecting ring beam 32 is arranged in a ring shape, and is at the same height as the first support rod 81 and the second support rod 82, connecting multiple groups of support columns 2 as a whole, so as to disperse the top load of the spoke beam 5 to multiple groups of support columns 2 for synchronous bearing, thereby ensuring the overall stability of the crown structure.

[0043] In the embodiment of the present invention, a plurality of spoke beams 5 and supporting columns 2 are connected as a whole by providing an annular support beam group 3, thereby enhancing the overall stability of the tower crown structure. Through its annular design, when the enclosure mechanism 4 is subjected to external forces (such as various wind direction forces at the top of the tower column 1), the load can be evenly transferred to the umbrella-shaped steel structure of the tower crown, which can effectively offset the impact load and enhance the applicability of the tower crown in the harsh environment at the top of the tower column 1. At the same time, through the annular design of the annular support beam group 3, there is enough effective space at the bottom of the umbrella-shaped steel structure of the tower crown, which is convenient for the subsequent construction of the enclosure mechanism 4 and the installation of related lighting decorations.

[0044] In the embodiment of the present invention, the enclosure mechanism 4 is used to encapsulate the umbrella-shaped steel structure of the tower crown. It is made of high-strength transparent and lightweight materials (such as acrylic transparent plates, PC transparent plates, PET transparent plates, etc.), and includes side enclosures 41 and top enclosures 42.

[0045] The side enclosure 41 is arranged at the top of the tower column 1, at the front end of the spoke beam 5, and its bottom is fixed by the enclosure anchor assembly 7. The enclosure anchor assembly 7 includes a second anchor rod 71, a second bottom anchor plate 72 and a second top anchor plate 73; the second bottom anchor plate 72 is pre-buried at a corresponding depth in the tower column 1, and a plurality of second anchor rods 71 ​​are fixed on its top by welding; the second anchor rod 71 passes through the tower column 1 and is fixedly connected to the second top anchor plate 73; the top of the second top anchor plate 73 is provided with an enclosure connector for connecting and fixing the bottom of the side enclosure 41. Furthermore, the front end of the spoke beam 5 is provided with an enclosure connector to connect and fix the top of the side enclosure 41.

[0046] The top enclosure 42 is connected and fixed by an enclosure connector provided on the top of the spoke beam 5, and its outer periphery is sealed and connected to the top of the side enclosure 41 by a sealant to prevent rainwater and dust from entering.

[0047] The umbrella-shaped steel structure tower crown of the present invention expands the functionality of the tower crown by combining an umbrella-like integral steel structure with a light-transmitting enclosure structure, mainly expanding its lighting and sightseeing functionality, greatly improving the landscape effect and practical function of the bridge tower, and meeting the needs of current development; the shape of the tower crown can be adjusted according to needs, and it has strong applicability.

[0048] The umbrella-shaped steel structure tower crown of the present invention can be manufactured as a whole and then hoisted or assembled on-site by parts according to construction requirements, thereby improving the convenience and adaptability of construction. At the same time, the combination of high-performance new materials can also make the tower crown structure lighter and more novel, meeting the needs of modern aesthetics.

[0049] The umbrella-shaped steel structure tower crown of the present invention draws on the decoration technology of curtain walls and lights in the construction field and applies it to the tower crown of the bridge, which can enhance the unity of urban bridges and buildings and has strong contemporary characteristics.

[0050] The embodiment of the present invention further provides a method for installing an umbrella-shaped steel structure tower crown suitable for a bridge tower column, comprising the following steps:

[0051] S100: When pouring the top of the tower column 1, the column anchor assembly 6 and the enclosure anchor assembly 7 are pre-buried in the corresponding positions;

[0052] S200: Anchoring multiple groups of support columns 2 through column anchoring assemblies 6;

[0053] S300: Install and fix the spoke beam 5 on the top of the supporting column 2 so that its shaft points to the central axis of the tower column 1;

[0054] S400: Install the first support rod 81 and the second support rod 82, so that the first support rod 81 connects the front end of the spoke beam 5 and the front side of the support column 2, and the second support rod 82 connects the rear end of the spoke beam 5 and the rear side of the support column 2;

[0055] S500: Installing the column body connecting ring beam 32 to connect the multiple groups of supporting columns 2 into one;

[0056] S600: Install the reinforcing ring beam 311 and the secondary ring beam 312 so that the multiple spoke beams 5 are connected as one and the center of gravity is located at the top of the supporting column 2;

[0057] S700: hoist the side enclosure 41, and fix its bottom to the enclosure anchor assembly 7 through the enclosure connector, and fix its top to the front end of the spoke beam 5 through the enclosure connector;

[0058] S800: hoist the top enclosure 42 and fix it to the top of the spoke beam 5 through the enclosure connector;

[0059] S900: Seal the gap between the side enclosure 41 and the top enclosure 42 with glue to complete the installation of the tower crown.

[0060] It will be easily understood by those skilled in the art that 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 and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An umbrella-shaped steel structure tower crown suitable for a bridge tower column, characterized in that: include: A plurality of groups of support columns (2) circumferentially anchored at the ventilation openings at the top of the tower column (1), a spoke beam (5) vertically fixed at the top of the support column (2), an oblique support assembly (8) for strengthening the connection strength between the spoke beam (5) and the support column (2), and a circumferential support beam group (3) connecting the plurality of groups of support columns (2) and the spoke beam (5) into one body; and a containment mechanism (4) arranged on the outer periphery of the spoke beams (5) to enclose the tower column (1), the containment mechanism (4) being made of a high-strength transparent light material; wherein the annular support beam group (3) comprises a top ring beam (31), the top ring beam (31) connecting a plurality of radially arranged spoke beams (5) together, so that the tower crown support steel structure at the top of the tower column (1) is an umbrella-shaped steel structure.

2. The umbrella-shaped steel structure tower crown suitable for a bridge tower column according to claim 1, characterized in that: The annular support beam group (3) comprises a top ring beam (31) and a column body connecting ring beam (32); the top ring beam (31) connects multiple groups of spoke beams (5) into one, and comprises a reinforcing ring beam (311) and a secondary ring beam (312); the reinforcing ring beam (311) is provided with (2) or more groups, arranged in a ring shape, and respectively connects the rear end shafts of multiple spoke beams (5) into one; The rod diameter of the secondary ring beam (312) is smaller than the rod diameter of the reinforcing ring beam (311), and multiple groups of secondary ring beams (312) are arranged in a ring shape, connecting the front end rods of multiple groups of spoke beams (5) into one; the column body connecting ring beam (32) is arranged in a ring shape, connecting multiple groups of supporting columns (2) into one.

3. The umbrella-shaped steel structure tower crown suitable for bridge tower column according to claim 2, characterized in that: The top ring beam (31) is installed and fixed on the spoke beam (5) so that the center of gravity of the spoke beam (5) is located on the top of the supporting column (2).

4. An umbrella-shaped steel structure tower crown suitable for a bridge tower column according to any one of claims 1 to 3, characterized in that: The spoke beam (5) is used to support the top of the enclosure structure (4), is arranged horizontally, and the bottom of the rod body is fixedly connected to the bottom of the supporting column (2) by welding or bolt connection; a plurality of the spoke beams (5) are arranged radially, and the rod bodies thereof point to the central axis of the tower column (1).

5. An umbrella-shaped steel structure tower crown suitable for a bridge tower column according to any one of claims 1 to 3, characterized in that: The front end of the spoke beam (5) located on the supporting column (2) is longer than the rear end, so that there is sufficient effective space at the bottom of the umbrella-shaped steel structure of the tower crown, which is convenient for the construction of the subsequent enclosure mechanism (4) and the installation of related lighting decorations.

6. An umbrella-shaped steel structure tower crown suitable for a bridge tower column according to any one of claims 1 to 3, characterized in that: The oblique support assembly (8) comprises a first support rod (81) and a second support rod (82); one end of the first support rod (81) is fixedly connected to the front side of the support column (2), and the other end is fixedly connected to the bottom of the front end of the spoke beam (5); one end of the second support rod (82) is fixedly connected to the rear side of the support column (2), and the other end is fixedly connected to the bottom of the rear end of the spoke beam (5).

7. An umbrella-shaped steel structure tower crown suitable for a bridge tower column according to any one of claims 1 to 3, characterized in that: The enclosure mechanism (4) comprises a side enclosure (41) and a top enclosure (42); The side enclosure (41) is arranged at the top of the tower column (1) and is located at the front end of the spoke beam (5). The bottom of the side enclosure (41) is fixed by a enclosure anchor assembly (7), and the top of the side enclosure (41) is connected and fixed by an enclosure connector provided at the front end of the spoke beam (5) shaft. The top enclosure (42) is connected and fixed by an enclosure connector provided at the top of the spoke beam (5).

8. An umbrella-shaped steel structure tower crown suitable for a bridge tower column according to any one of claims 1 to 3, characterized in that: The bottom of the supporting column (2) is anchored to the top of the tower column (1) through a column anchoring assembly (6), and the column anchoring assembly (6) comprises a first anchor rod (61), a first bottom anchor plate (62) and a first top anchor plate (63), wherein the first bottom anchor plate (62) is pre-buried at a corresponding depth in the tower column (1), and a plurality of first anchor rods (61) are fixed on the top thereof by welding; the first anchor rod (61) passes through the tower column (1) and is fixedly connected to the first top anchor plate (63); the middle of the top of the first top anchor plate (63) is fixedly connected to the supporting column (2) by welding.

9. The umbrella-shaped steel structure tower crown suitable for bridge tower column according to claim 7, characterized in that: The bottom of the side enclosure (41) is fixed by an enclosure anchoring assembly (7), which comprises a second anchor rod (71), a second bottom anchor plate (72) and a second top anchor plate (73); the second bottom anchor plate (72) is pre-buried at a corresponding depth in the tower column (1), and a plurality of second anchor rods (71) are fixed on the top thereof by welding; the second anchor rods (71) pass through the tower column (1) and are fixedly connected to the second top anchor plate (73); a enclosure connecting piece is provided on the top of the second top anchor plate (73) for connecting and fixing the bottom of the side enclosure (41).

10. A method for installing an umbrella-shaped steel structure tower crown suitable for a bridge tower column, characterized in that: The steps include: S100: When pouring the top of the tower column (1), pre-burying the column anchoring assembly (6) and the enclosure anchoring assembly (7) at corresponding locations; S200: Anchoring a plurality of groups of supporting columns (2) through column anchoring assemblies (6); S300: Install and fix the spoke beam (5) on the top of the supporting column (2) so that its shaft points to the central axis of the tower column (1); S400: Installing a first support rod (81) and a second support rod (82), so that the first support rod (81) is connected to the front end of the spoke beam (5) and the front side of the support column (2), and the second support rod (82) is connected to the rear end of the spoke beam (5) and the rear side of the support column (2); S500: Installing the column body connecting ring beam (32) to connect the multiple groups of supporting columns (2) into one; S600: Install the reinforcing ring beam (311) and the secondary ring beam (312) so that the multiple groups of spoke beams (5) are connected as one and the center of gravity is located at the top of the supporting column (2); S700: hoisting the side enclosure (41), and fixing its bottom to the enclosure anchor assembly (7) through the enclosure connector, and fixing its top to the front end of the spoke beam (5) through the enclosure connector; S800: hoisting the top enclosure (42), and fixing it to the top of the spoke beam (5) through the enclosure connection piece; S900: The gap between the side enclosure (41) and the top enclosure (42) is sealed with glue to complete the installation of the tower crown.

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