High-strength bridge steel tower structure

Abstract

A high-strength bridge steel tower structure comprises a plurality of steel tower units and connecting devices, and the adjacent steel tower units are detachably and fixedly connected through the connecting devices. Each steel tower unit comprises two spaced frame units, each frame unit comprises a rectangular outer frame and a rectangular inner frame, the inner frames are arranged in the outer frames, first connecting rods are arranged in the middles of the outer side faces of the inner frames, first positioning columns are fixed to the inner ends of the first connecting rods, and first positioning grooves corresponding to the first positioning columns are formed in the outer side faces of the inner frames. The outer frame and the inner frame are fixedly connected through first connecting rods, and an inclined second connecting rod is fixed between every two adjacent first connecting rods; four connecting columns and a plurality of supporting rods are arranged between the two frame units, the four connecting columns are detachably fixed to the four corners of the outer frames respectively, the supporting rods are evenly arranged between the two outer frames, and the ends of the supporting rods are detachably and fixedly connected with the outer frames. The steel tower unit can be conveniently prefabricated according to a bridge structure, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridges, in particular to a high-strength bridge steel tower structure. Background Art

[0002] Bridge steel tower refers to the towering steel structure used in bridge structures, especially cable-stayed bridges and suspension bridges. As the main load-bearing member, it supports the main cable or cable-stayed cable, and transmits the bridge deck load to the tower through these cables, and then the tower transmits the load to the foundation and ground. At present, in the process of bridge construction, the production of bridge steel tower lacks standardization, and different bridges have different strength designs for bridge steel towers, resulting in low overall construction efficiency.

[0003] The patent publication number is CN221460938U, and the patent name is a high-strength bridge steel tower structure. In the patent disclosed technical solution, a reinforced inner frame is provided inside the steel structure outer frame, which is convenient for adjustment according to different strength requirements, which not only improves the overall structural strength of the bridge steel tower, but also meets the construction requirements of different bridge steel towers, making the production of bridge steel towers more standardized, and greatly shortening the construction period of bridge steel tower construction. However, the outer frame is welded by a number of cross beams and longitudinal beams, and the overall structure of the outer frame is relatively high, which is not convenient for installing multiple reinforced inner frames in sequence in the outer frame. Therefore, it is necessary to design a high-strength bridge steel tower structure, which is convenient for prefabricating steel tower units according to the bridge structure, facilitating transportation and installation, and improving construction efficiency. Utility Model Content

[0004] The utility model aims to provide a high-strength bridge steel tower structure, which is convenient for prefabricating steel tower units according to the bridge structure, is convenient for transportation and installation, and improves construction efficiency.

[0005] The technical solution adopted by the utility model is:

[0006] A high-strength bridge steel tower structure includes a plurality of steel tower units and a connecting device, wherein adjacent steel tower units are detachably fixedly connected by the connecting device; the steel tower unit includes two spaced frame units, wherein the frame unit includes a rectangular outer frame and an inner frame, wherein the inner frame is arranged in the outer frame, and a first connecting rod is provided in the middle of each outer side surface of the inner frame, and a first positioning column is fixed to the inner end of the first connecting rod, and a first positioning groove corresponding to the first positioning column is provided on the outer side surface of the inner frame, and the outer frame and the inner frame are fixedly connected by the first connecting rod, and an inclined second connecting rod is fixed between two adjacent first connecting rods; four connecting rods and a plurality of supporting rods are provided between the two frame units, and the four connecting rods are detachably fixed at the four corners of the outer frame, respectively, and the supporting rods are evenly arranged between the two outer frames and their ends are detachably fixedly connected to the outer frame.

[0007] The connecting device includes four locking bolts, which are threadedly connected to the outer frame of the frame unit located below. A second positioning column is fixed to the top of the connecting column, and a second positioning groove that can cooperate with the second positioning column is provided at the bottom of the connecting column. The second positioning column is provided with a locking hole that cooperates with the locking bolts.

[0008] The connecting device includes a connecting sleeve threadedly connected to the upper part of the connecting column, a first threaded hole threadedly connected to the connecting sleeve is provided on the outer frame of the frame unit located above, and a second threaded hole threadedly connected to the connecting sleeve is provided on the outer frame of the frame unit located below; a plug-in column is fixed to the top of the connecting column, and a plug-in hole capable of cooperating with the plug-in column is provided at the bottom of the connecting column.

[0009] The top and bottom of the support rod are detachably fixed with screws, the outer frame is provided with strip holes corresponding to the screws, the outer ends of the strip holes are provided with countersunk holes, the outer ends of the screws pass through the strip holes and extend into the countersunk holes, the outer ends of the screws are threadedly connected with locking nuts, and the locking nuts are set in the countersunk holes.

[0010] The four first connecting rods have the same length; triangular fixing blocks are fixed to both ends of the second connecting rod, and the fixing blocks are respectively fixedly connected to the corresponding first connecting rod and the outer frame.

[0011] The beneficial effects of the utility model are:

[0012] (1) It is convenient to prefabricate steel tower units according to the bridge structure, which is convenient for transportation and installation. Adjacent steel tower units are detachably fixedly connected through connecting devices, which is convenient for installation and disassembly, thereby improving construction efficiency.

[0013] (2) The frame unit includes a rectangular outer frame and an inner frame. The inner frame is arranged inside the outer frame. The outer frame and the inner frame are fixedly connected by a first connecting rod. A first positioning column is fixed to the inner end of the first connecting rod. A first positioning groove corresponding to the first positioning column is arranged on the outer side surface of the inner frame. The first positioning column is arranged in the first positioning groove to facilitate its rapid placement into place. An inclined second connecting rod is fixed between two adjacent first connecting rods to enhance the structural strength of the frame unit.

[0014] (3) Four connecting columns and several supporting rods are arranged between the two frame units. The supporting rods are evenly arranged between the two outer frames and their ends are detachably fixedly connected to the outer frames to realize the connection between the two frame units. The four connecting columns are detachably fixed at the four corners of the outer frames to facilitate the connection of adjacent steel tower units. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is the structural schematic diagram of the steel tower unit (I);

[0017] Figure 3 Schematic diagram of the connection between two adjacent steel tower units (I);

[0018] Figure 4 It is the structural schematic diagram of the steel tower unit (II);

[0019] Figure 5 Schematic diagram of the connection between two adjacent steel tower units (II).

[0020] In the figure: 1-steel tower unit, 2-connecting device, 3-connecting column, 4-countersunk hole, 5-bar hole, 6-screw, 7-locking nut, 8-support rod, 9-first connecting rod, 10-fixing block, 11-second connecting rod, 12-outer frame, 13-inner frame, 14-first positioning column, 15-frame unit, 16-plug-in column, 17-connecting sleeve, 18-second threaded hole, 19-first threaded hole, 20-second positioning column, 21-locking bolt, 22-locking hole. DETAILED DESCRIPTION

[0021] like Figure 1-Figure 5 As shown, a high-strength bridge steel tower structure includes a plurality of steel tower units 1 and a connecting device 2. Adjacent steel tower units 1 are detachably fixedly connected by the connecting device 2, which is convenient for installation and disassembly; the steel tower unit 1 includes two spaced frame units 15, the frame unit 15 includes a rectangular outer frame 12 and an inner frame 13, the inner frame 13 is arranged in the outer frame 12, and a first connecting rod 9 is arranged in the middle of each outer side surface of the inner frame 13, and a first positioning column 14 is fixed to the inner end of the first connecting rod 9. The outer side surface of the inner frame 13 is provided with a first positioning groove corresponding to the first positioning column 14. During installation, the first positioning column 14 is arranged in the first positioning groove, which is convenient for quickly placing the first connecting rod 9 In place, the outer frame 12 and the inner frame 13 are fixedly connected by the first connecting rod 9, that is, the inner end of the first connecting rod 9 is fixedly connected to the outer side surface of the inner frame 13, and the outer end of the first connecting rod 9 is fixedly connected to the inner side of the outer frame 12, and an inclined second connecting rod 11 is fixed between two adjacent first connecting rods 9 to enhance the structural strength of the frame unit 15; four connecting columns 3 and a plurality of support rods 8 are arranged between the two frame units 15, and the four connecting columns 3 are respectively detachably fixed at the four corners of the outer frame 12 to facilitate the connection of adjacent steel tower units 1, and the support rods 8 are evenly arranged between the two outer frames 12 and their ends are detachably fixedly connected to the outer frame 12 to realize the connection of the two frame units 15.

[0022] The connecting device 2 includes four locking bolts 21, which are threadedly connected to the outer frame 12 of the frame unit 15 located below. A second positioning column 20 is fixed to the top of the connecting column 3, and a second positioning groove that can cooperate with the second positioning column 20 is provided at the bottom of the connecting column 3. The second positioning column 20 is provided with a locking hole 22 that cooperates with the locking bolt 21. The locking hole 22 is a threaded hole. When installing two adjacent steel tower units 1, the second positioning column 20 is set in the corresponding second positioning groove, and the inner end of the locking bolt 21 is threadedly connected in the corresponding locking hole 22 to achieve the connection between the two adjacent steel tower units 1.

[0023] The connecting device 2 includes a connecting sleeve 17 threadedly connected to the upper part of the connecting column 3. The upper and lower parts of the connecting column 3 are both provided with external threads that can cooperate with the connecting sleeve 17. The outer frame 12 of the frame unit 15 located at the upper part is provided with a first threaded hole 19 threadedly connected to the connecting sleeve 17. The outer frame 12 of the frame unit 15 located at the lower part is provided with a second threaded hole 18 threadedly connected to the connecting sleeve 17. The length of the second threaded hole 18 is less than the length of the first threaded hole 19; a plug-in column 16 is fixed to the top of the connecting column 3, and a plug-in hole that can cooperate with the plug-in column 16 is provided at the bottom of the connecting column 3. When installing two adjacent steel tower units 1, the plug-in column 16 is inserted into the corresponding plug-in hole, and the connecting sleeve 17 is rotated upward. The upper part of the connecting sleeve 17 cooperates with the corresponding second threaded hole 18, and also covers the splicing position of the two connecting columns 3, thereby realizing the connection of the two adjacent steel tower units 1.

[0024] The top and bottom of the support rod 8 are detachably fixed with screws 6, and the outer frame 12 is provided with strip holes 5 corresponding to the screws 6. The outer ends of the strip holes 5 are provided with countersunk holes 4. The outer ends of the screws 6 pass through the strip holes 5 and extend into the countersunk holes 4. The outer ends of the screws 6 are threadedly connected with locking nuts 7, and the locking nuts 7 are set in the countersunk holes 4. When the number and positions of the support rods 8 need to be adjusted, the locking nuts 7 are loosened, the support rods 8 are moved to a suitable position, the screws 6 are moved to a suitable position along the strip holes 5, and then the locking nuts 7 are tightened.

[0025] The four first connecting rods 9 have the same length; triangular fixing blocks 10 are fixed at both ends of the second connecting rod 11, and the fixing blocks 10 are respectively fixedly connected to the corresponding first connecting rods 9 and the outer frame 12, and the two side surfaces of the fixing blocks 10 are respectively in contact with the side surfaces of the first connecting rods 9 and the inner side surfaces of the outer frame 12.

[0026] The utility model facilitates the prefabrication of steel tower units 1 according to the bridge structure, which is convenient for transportation and installation. Adjacent steel tower units 1 are detachably fixedly connected through a connecting device 2, which is convenient for installation and disassembly and improves construction efficiency. During the production process, according to the bridge structure, a suitable number of support rods 8 and the like are selected, the steel tower units 1 are pre-assembled, and transported to the construction site, and the adjacent steel tower units 1 are directly detachably fixedly connected together in sequence through the connecting device 2.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A high-strength bridge steel tower structure, characterized in that: It comprises a plurality of steel tower units and connecting devices, and adjacent steel tower units are detachably fixedly connected through the connecting devices; the steel tower unit comprises two spaced frame units, and the frame unit comprises a rectangular outer frame and an inner frame, and the inner frame is arranged in the outer frame, and a first connecting rod is provided in the middle of each outer side surface of the inner frame, and a first positioning column is fixed to the inner end of the first connecting rod, and a first positioning groove corresponding to the first positioning column is provided on the outer side surface of the inner frame, and the outer frame and the inner frame are fixedly connected through the first connecting rod, and an inclined second connecting rod is fixed between two adjacent first connecting rods; four connecting rods and a plurality of supporting rods are arranged between the two frame units, and the four connecting rods are detachably fixed at the four corners of the outer frame respectively, and the supporting rods are evenly arranged between the two outer frames and the ends thereof are detachably fixedly connected to the outer frame.

2. The high-strength bridge steel tower structure according to claim 1, characterized in that: The connecting device includes four locking bolts, which are threadedly connected to the outer frame of the frame unit located below. A second positioning column is fixed to the top of the connecting column, and a second positioning groove that can cooperate with the second positioning column is provided at the bottom of the connecting column. The second positioning column is provided with a locking hole that cooperates with the locking bolts.

3. The high-strength bridge steel tower structure according to claim 1, characterized in that: The connecting device includes a connecting sleeve threadedly connected to the upper part of the connecting column, a first threaded hole threadedly connected to the connecting sleeve is provided on the outer frame of the frame unit located above, and a second threaded hole threadedly connected to the connecting sleeve is provided on the outer frame of the frame unit located below; a plug-in column is fixed to the top of the connecting column, and a plug-in hole capable of cooperating with the plug-in column is provided at the bottom of the connecting column.

4. The high-strength bridge steel tower structure according to claim 1, characterized in that: The top and bottom of the support rod are detachably fixed with screws, the outer frame is provided with strip holes corresponding to the screws, the outer ends of the strip holes are provided with countersunk holes, the outer ends of the screws pass through the strip holes and extend into the countersunk holes, the outer ends of the screws are threadedly connected with locking nuts, and the locking nuts are set in the countersunk holes.

5. The high-strength bridge steel tower structure according to claim 1, characterized in that: The four first connecting rods have the same length; triangular fixing blocks are fixed to both ends of the second connecting rod, and the fixing blocks are respectively fixedly connected to the corresponding first connecting rod and the outer frame.

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