CN117306391A - Novel structure and method for cable-stayed bridge steel tower - Google Patents

Abstract

The invention relates to the field of bridge engineering, in particular to a novel structure and a method of a cable-stayed bridge steel tower, which comprise an outer wall plate, an inner wall plate, an anchor box and stay cables.

Description

Novel structure and method for cable-stayed bridge steel tower

Technical Field

The invention relates to the field of bridge engineering, in particular to a novel structure and a method of a cable-stayed bridge steel tower.

Background

A cable-stayed bridge (also called as a diagonal bridge) is a bridge in which a main girder is directly pulled on a bridge tower by a plurality of guys, and is a structural system formed by combining a bearing tower, a tension rope and a bearing beam body. It can be regarded as a multi-span elastic support continuous beam with guy cables instead of piers. The bending moment in the beam body can be reduced, the building height is reduced, the structural weight is reduced, and the materials are saved.

In landscape bridge design, the arrangement of cable-stayed bridge towers and stay cables is an important embodiment element of bridge modeling. The bridge tower generally adopts special-shaped section, and the stay cable also often adopts space cable, however, the geometric shape, the structure atress of bridge are complicated, and conventional concrete bridge tower often receives the anchor atress restriction of stay cable, and its appearance is comparatively single, and is difficult to adapt to different stay cable angle and position adjustment precision demands, has reduced its application scene and the convenient degree of later maintenance.

Disclosure of Invention

The invention provides a novel structure of a cable-stayed bridge steel tower, which aims to solve the technical problem that a landscape bridge tower in the prior art is single in appearance and difficult to anchor a space stay cable.

The invention adopts the following technical scheme: the utility model provides a novel structure of cable-stay bridge steel tower, includes outer wallboard, inner wallboard, anchor case and suspension cable, outer wallboard be the closed changeable appearance wallboard of bridge tower shape structure, the inboard of outer wallboard is the cavity, the multiunit logical groove has been seted up along bridge tower axis direction to the lateral wall of outer wallboard, the inner wallboard is installed to the inboard cavity symmetry of outer wallboard, and the inner wallboard is located the both sides that lead to the groove respectively, install multiunit anchor case jointly between the inner wallboard of symmetry installation, the anchor case is evenly arranged along the bridge tower axis direction of outer wallboard, and every group anchor case all is corresponding with every group logical groove, the anchor case all is located the inboard that leads to the groove, fixedly connected with suspension cable in the anchor case, the suspension cable runs through the groove and extends to the outside that leads to the groove.

Preferably, the outer wall plate is a steel plate, the cross section of the closed bridge tower structure formed by the outer wall plate is rectangular, polygonal or special-shaped, a plurality of reinforcing plates are fixedly arranged at the outer side connecting part of the outer wall plate, and a plurality of vertical stiffening ribs for bearing structural stress are uniformly arranged at the inner side of the outer wall plate along the axis direction of the bridge tower.

Preferably, the limiting brackets of multiunit are installed along the bridge tower axis direction fixed mounting to the outer wallboard inboard, and limiting brackets's both ends are outside expansion "V" shape structure, and every group limiting brackets all is located the top of every group logical groove, and the notch width of leading to the groove is less than the sharp length at limiting brackets both ends, and the inner wallboard is two parallel risers that arrange along the bridge tower axis direction, and the inner wallboard is located limiting brackets's both ends position respectively, and the lateral wall of inner wallboard and limiting brackets's "V" shape tip fixed connection, and the inner wallboard adopts the steel sheet, and is connected through "T" shape welding seam between inner wallboard and the outer wallboard.

Preferably, the outer wallboard lateral wall evenly seted up multiunit through-hole, equal fixed mounting has the diaphragm in the through-hole, diaphragm perpendicular to pylon axis, and the diaphragm is parallel with spacing support, the diaphragm adopts the steel sheet, diaphragm lateral wall and outer wallboard inner wall laminating, and the laminating position of diaphragm and outer wallboard passes through the welding seam connection.

Preferably, the diaphragm side be provided with stiffening rib matched with run through the groove, the lateral wall of diaphragm and the lateral wall laminating of interior wallboard, and the laminating position of diaphragm and interior wallboard evenly is provided with matched with counterpoint hole groove, and the laminating position of diaphragm and interior wallboard adopts the welding seam to be connected.

Preferably, the transverse partition plate and the inner wall plate are provided with manholes, and the manholes are arranged in the center of the axis of the bridge tower.

Preferably, the inner wall plate both sides evenly install multiunit pressure-bearing frame, pressure-bearing frame all is located the inboard of logical groove and pressure-bearing frame and the parallel arrangement of bridge tower axis direction, pressure-bearing frame's one end is the drum structure, and the drum end runs through the inner wall plate, installs the pressure-bearing dish through running fit's mode in the drum end of pressure-bearing frame, the quotation middle part of pressure-bearing dish is seted up flutedly, the lateral wall fixed mounting of anchor box has with pressure-bearing dish recess matched with rib.

Preferably, the side surface of the pressure-bearing disc ring is uniformly provided with wave grooves, the wave grooves are positioned at the inner side of the cylinder end of the pressure-bearing frame, and the pressure-bearing disc is connected with the pressure-bearing frame and the pressure-bearing disc is connected with the anchor box through welding seams.

Preferably, the pressure-bearing frames are respectively positioned at two sides of the manhole on the inner wall plate, the component plates are fixedly arranged on the side walls of the pressure-bearing frames, the component plates are perpendicular to the pressure-bearing frames, triangular rib blocks are arranged between the component plates and the side walls of the pressure-bearing frames, steel ropes are jointly arranged between the component plates positioned at two sides of the manhole on the inner wall plate, and the steel ropes are perpendicular to the axis of the bridge tower.

In addition, the invention also provides a construction method of the new structure of the cable-stayed bridge steel tower, which comprises the following steps:

1) Manufacturing or selecting an anchor box according to the installation space and the angle of the stay cable;

2) Mounting pressure-bearing force-transferring ribs on the side wall of the anchor box into grooves of the pressure-bearing disc, performing welding treatment, then rotating the anchor box to enable the anchor box and the pressure-bearing disc to integrally rotate in the pressure-bearing frame, further enabling the anchor box to be at a preset inclination angle in the through groove, and then performing welding treatment on the connection part of the pressure-bearing frame and the pressure-bearing disc;

3) Welding a diaphragm plate on the outer side of the inner wall plate to form a bridge tower inner stress assembly, then wrapping the bridge tower inner stress assembly formed by the inner wall plate and the diaphragm plate by the outer wall plate, and welding joint parts between the inner wall plate and the outer wall plate and joint parts between the diaphragm plate and the outer wall plate to jointly form a bridge tower section;

4) And the combined bridge tower sections are connected into a whole through welding.

Advantageous effects

According to the novel structure and the method for the cable-stayed bridge steel tower, the inner wall plate is used as the middle force transmission component, the main stress component and the anchoring component of the bridge tower are separated, and the outer wall plate of the bridge tower is not limited by the anchoring stress of the stay cable and can be in various shapes. The two vertical plates of the inner wall plate are provided with a certain space which can adapt to different stay cable angles, so that the arrangement of various space stay cables is convenient, the inclination angle adjusting efficiency and precision of the anchor box on the inner wall plate can be improved through a combined connection mode formed by the bearing frame and the bearing plate, meanwhile, the bearing plate can also assist in supporting the anchor box in the angle adjusting process, the operation difficulty of workers in welding operation is reduced, and the stability and the compression resistance and deformation resistance of the inner wall plate in the bridge tower can be improved through the supporting and traction of the limiting support and the steel cable to the inner wall plate. The manhole is arranged on the diaphragm plate and the inner wall plate, so that the dead weight of the structure can be reduced, the welding inside the steel tower and the later maintenance are facilitated, and the novel structure has the characteristics of definite force transmission and adaptation to various landscape modeling.

Drawings

The invention will be further described with reference to the drawings and examples.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic front view of FIG. 1 in accordance with the present invention;

FIG. 3 is a schematic view of the invention in section in the direction A-A of FIG. 2;

FIG. 4 is an enlarged schematic view of the invention at B of FIG. 3;

FIG. 5 is a schematic side view of the present invention;

FIG. 6 is a schematic view of the invention in section in the direction C-C of FIG. 5;

FIG. 7 is a schematic view of the invention in section in the direction D-D of FIG. 5;

FIG. 8 is an enlarged schematic view of FIG. 7 at E in accordance with the present invention;

FIG. 9 is a schematic view showing the positional relationship of the outer wall plate, the inner wall plate and the diaphragm plate;

FIG. 10 is a schematic view of the relationship between the inner wall plate, manhole and stiffener according to the present invention;

FIG. 11 is an enlarged schematic view of the invention at F of FIG. 10;

FIG. 12 is an enlarged schematic view of the invention at G of FIG. 10;

FIG. 13 is a schematic view of the positional relationship of the outer wall plate, the inner wall plate and the anchor box according to the present invention;

in the figure: 1. an outer wall panel; 2. an inner wall panel; 3. an anchor box; 4. stay cables; 5. a through groove; 11. a reinforcing plate; 12. stiffening ribs; 13. a limit bracket; 6. a diaphragm; 61. aligning the hole slots; 7. a manhole; 21. a pressure-bearing frame; 22. a pressure-bearing disc; 31. a rib; 23. a wave-shaped groove; 24. a force-distributing plate; 25. triangular rib blocks; 26. and (5) a steel rope.

Detailed Description

The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand. In this process, to ensure clarity and convenience of description, the widths of the lines or the sizes of the constituent elements in the drawings may be exaggerated.

The terms to be used hereinafter are defined based on the functions of the present invention, and may be different according to the intention of a user or a conventional practice, and therefore, these terms are defined based on the entire contents of the present specification.

Referring to fig. 1, 2, 3, 5 and 9, the novel structure of the cable-stayed bridge steel tower comprises an outer wall plate 1, an inner wall plate 2, an anchor box 3 and a stay cable 4, wherein the outer wall plate 1 is a closed variable-appearance wall plate with a bridge tower-shaped structure, the outer wall plate 1 is a steel plate, the closed bridge tower structure formed by the outer wall plate 1 is rectangular, polygonal or special-shaped in cross section, a plurality of reinforcing plates 11 are fixedly arranged at the outer side connecting part of the outer wall plate 1, the inner side of the outer wall plate 1 is a cavity, a plurality of vertical stiffening ribs 12 for bearing structural stress are uniformly arranged at the inner side of the outer wall plate 1 along the bridge tower axis direction, a plurality of groups of through grooves 5 are formed in the side wall of the outer wall plate 1 along the bridge tower axis direction, the inner side cavity of the outer wall plate 1 is symmetrically provided with the inner wall plate 2, the inner wall plate 2 is made of steel plates, the inner wall plate 2 is respectively positioned at two sides of the through grooves 5, the inner wall plate 2 is connected with the outer wall plate 1 through T-shaped welding seams, a plurality of groups of limit brackets 13 are fixedly arranged on the inner side of the outer wall plate 1 along the axis direction of the bridge tower, two ends of each limit bracket 13 are of outward-expanding V-shaped structures, each group of limit brackets 13 is positioned above each group of through grooves 5, the width of the notch of each through groove 5 is smaller than the linear length of the two ends of each limit bracket 13, the inner wall plate 2 is two parallel vertical plates arranged along the axis direction of the bridge tower, the inner wall plates 2 are respectively positioned at the two ends of each limit bracket 13, the side walls of the inner wall plates 2 are fixedly connected with the V-shaped ends of the limit brackets 13, a plurality of groups of anchor boxes 3 are commonly arranged between the symmetrically-arranged inner wall plates 2, the anchor boxes 3 are uniformly distributed along the axis direction of the bridge tower of the outer wall plate 1, each group of anchor boxes 3 corresponds to each group of through grooves 5, the anchor boxes 3 are positioned on the inner sides of the through grooves 5, stay cables 4 are fixedly connected in the anchor boxes 3, the stay cable 4 penetrates through the through groove 5 and extends to the outside of the through groove 5.

During concrete work, firstly, according to construction technology and process requirements, processing and preparing the outer wall plate 1 and the anchor box 3, enabling the outer wall plate 1 to form a polygonal structure with a required appearance, reinforcing the outer wall of a bending or connecting part of the outer wall plate 1 through the reinforcing plate 11, reserving the through groove 5 at a preset position on the outer wall plate 1, then, carrying out welding and fixing operation between the stiffening rib 12 and the outer wall plate 1, enabling the stiffening rib 12 to be vertically and uniformly arranged on the inner side of the outer wall plate 1 and serve as a main member for bearing structural stress, and then, welding and fixing the limiting support 13 above the through groove 5;

as an embodiment of the present invention, as shown in fig. 4, 6, 7 and 8, multiple sets of bearing frames 21 are uniformly installed on two sides of the inner wall plate 2, the bearing frames 21 are located at the inner side of the through groove 5, the bearing frames 21 are arranged parallel to the axle tower axis direction, one end of the bearing frame 21 is in a cylindrical structure, the cylindrical end penetrates through the inner wall plate 2, a bearing disc 22 is installed in the cylindrical end of the bearing frame 21 in a manner of rotating fit, a groove is formed in the middle of the disc surface of the bearing disc 22, ribs 31 matched with the groove of the bearing disc 22 are fixedly installed on the side wall of the anchor box 3, wave grooves 23 are uniformly formed on the annular side surface of the bearing disc 22, the wave grooves 23 are located at the inner side of the cylindrical end of the bearing frame 21, and the bearing disc 22 are connected with the anchor box 3 through welding seams.

When the bridge tower appearance of the outer wall plate 1 is constructed, the bearing frame 21 is welded and fixed to the inner wall plate 2, at the moment, the bearing disc 22 is in a rotatable state at the cylindrical end of the bearing frame 21, then, the anchor box 3 is mounted on the bearing disc 22 through a worker, the rib 31 on the side wall of the anchor box 3 is in sliding clamping connection with the reserved groove on the bearing disc 22, after the clamping connection is completed, the worker performs the fixing operation of the bearing disc 22 and the anchor box 3 in a welding mode, then, the worker rotates the anchor box 3 to enable the anchor box 3 and the bearing disc 22 to integrally rotate, the preset inclination angle of the anchor box 3 is adjusted, after the adjustment is completed, the welding and fixing operation between the bearing disc 22 and the bearing frame 21 is performed through the worker, the wave groove 23 arranged on the circular arc side wall of the bearing disc 22 can enable the stability of the connecting part of the bearing disc 22 and the bearing frame 21 to be improved after the welding, the inclination angle adjustment efficiency of the anchor box 3 on the inner wall plate 2 and the anchor box 3 can be improved through the combined connecting mode formed by the bearing frame 21 and the bearing disc 22, and the supporting operation difficulty of the anchor box 3 is reduced in the supporting operation during the welding operation.

As an embodiment of the present invention, as shown in fig. 3, 6, 7, 10 and 11, the side wall of the outer wall plate 1 is uniformly provided with a plurality of groups of through holes, each through hole is fixedly provided with a diaphragm plate 6, each diaphragm plate 6 is perpendicular to the axis of the bridge tower, each diaphragm plate 6 is parallel to the limiting bracket 13, each diaphragm plate 6 adopts a steel plate, the side wall of each diaphragm plate 6 is attached to the inner wall of the outer wall plate 1, the attachment part of each diaphragm plate 6 and the outer wall plate 1 is connected through a welding seam, the side edge of each diaphragm plate 6 is provided with a through groove matched with a stiffening rib 12, the side wall of each diaphragm plate 6 is attached to the side wall of the inner wall plate 2, the attachment part of each diaphragm plate 6 and the inner wall plate 2 is uniformly provided with a matched alignment hole 61, each diaphragm plate 6 and the attachment part of the inner wall plate 2 are connected through a welding seam, and each diaphragm plate 6 and the inner wall plate 2 are provided with a manhole 7, and the manhole 7 is arranged in the center of the bridge tower axis.

During concrete work, before the anchor box 3 is installed, the manhole 7 is formed in the preset position on the inner wall plate 2 by a worker, after the position of the anchor box 3 is fixed, the distance between the two inner wall plates 2 is relatively fixed, then, the manhole 7 matched with the inner wall plate 2 is formed in the preset position on the diaphragm plate 6 by the worker, the diaphragm plate 6 is installed and welded after the hole is formed, the diaphragm plate 6 and the alignment hole slots 61 matched with the inner wall plate 2 are all positioned in preset attaching positions, then, the welding operation of attaching positions is performed by the worker, in the process, the quality and the thickness of welding seams at the attaching positions can be improved through the space communication effect of the alignment hole slots 61, the stability of connection between the diaphragm plate 6 and the inner wall plate 2 is improved, and a stress assembly inside a bridge tower is jointly formed through the diaphragm plate 6 and the inner wall plate 2.

As an embodiment of the present invention, as shown in fig. 7, 10, 12 and 13, the pressure-bearing frames 21 are respectively located at two sides of the manhole 7 on the inner wall plate 2, the side walls of the pressure-bearing frames 21 are fixedly provided with component plates 24, the component plates 24 are perpendicular to the pressure-bearing frames 21, triangular rib blocks 25 are arranged between the component plates 24 and the side walls of the pressure-bearing frames 21, steel cables 26 are commonly installed between the component plates 24 located at two sides of the manhole 7 on the inner wall plate 2, and the steel cables 26 are perpendicular to the bridge tower axis.

When the diaphragm 6 is installed, a worker makes two pressure-bearing frames 21 on two sides of a manhole 7 on the inner wall plate 2 in a connection state through a steel rope 26, tightens the connected steel rope 26, wraps the prepared outer wall plate 1 around a bridge tower internal stress assembly formed by the inner wall plate 2 and the diaphragm 6, makes the horizontal and vertical positions of the diaphragm 6 on the inner side of the outer wall plate 1 relatively fixed through the joint action of the through holes on the diaphragm 6 and the outer wall plate 1 and the joint position between the diaphragm 6 and the stiffening rib 12, makes the joint positions between the inner wall plate 2 and the outer wall plate 1 and the joint positions between the diaphragm 6 and the outer wall plate 1 fixed through welding, and further makes the outer wall plate 1, the inner wall plate 2 and the diaphragm 6 jointly form a bridge tower section in the process, the V-shaped end of the limit bracket 13 is attached to the side wall of the inner wall plate 2 and fixed, the inner wall plate 2 is supported and limited by the limit bracket 13, the stability and the compression resistance and deformation resistance of the inner wall plate 2 in a bridge tower can be improved, then, all bridge tower sections formed by combination are connected into a whole by welding, then, the connection and fixation operation between the stay cable 4 and the anchor box 3 is carried out, when the stay cable 4 is installed and constructed, two sides of the inner wall plate 2 are simultaneously subjected to two tensile forces with opposite directions, when the tensile force of the stay cable 4 on one side of the inner wall plate 2 is increased, the tensile force can be distributed and released to the other side of the inner wall plate 2 by the connection action of the steel cable 26 to the pressure-bearing frame 21, the deformation or deflection caused by overlarge stress on one side of the inner wall plate 2 can be further avoided by the auxiliary support of the limit bracket 13, and the transverse partition plate 6 and the stiffening rib 12 are matched, the whole stress state of the bridge tower can be improved.

In addition, the invention also provides a construction method of the new structure of the cable-stayed bridge steel tower, which comprises the following steps:

1) Firstly, according to construction technology and process requirements, processing and preparing an outer wall plate 1 and an anchor box 3, enabling the outer wall plate 1 to form a polygonal structure with a required appearance, reinforcing the outer wall of a bending or connecting part of the outer wall plate 1 through a reinforcing plate 11, reserving a through groove 5 at a preset position on the outer wall plate 1, then, carrying out welding and fixing operation between a stiffening rib 12 and the outer wall plate 1, enabling the stiffening rib 12 to be vertically and uniformly arranged on the inner side of the outer wall plate 1 and serve as a main member for bearing structural stress, and then, welding and fixing a limiting bracket 13 above the through groove 5;

2) After the bridge tower appearance of the outer wall plate 1 is constructed, the bearing frame 21 is welded and fixed on the inner wall plate 2, at the moment, the bearing disc 22 is in a rotatable state at the cylinder end of the bearing frame 21, then, the anchor box 3 is mounted on the bearing disc 22 by a worker, the ribs 31 on the side wall of the anchor box 3 are in sliding clamping connection with the grooves reserved on the bearing disc 22, after the clamping connection is completed, the worker performs the fixing operation of the bearing disc 22 and the anchor box 3 in a welding mode, then, the worker rotates the anchor box 3, and further, the anchor box 3 and the bearing disc 22 integrally rotate, the preset inclination angle of the anchor box 3 is adjusted, and after the adjustment is completed, the welding and fixing operation between the bearing disc 22 and the bearing frame 21 is performed by the worker;

3) Manhole 7 is formed at preset positions on the inner wall plate 2 and the diaphragm plate 6 by workers, and after the holes are formed, the diaphragm plate 6 is installed and welded, so that the diaphragm plate 6 and the alignment hole grooves 61 matched on the inner wall plate 2 are all at preset joint positions, and then the welding operation of joint positions is carried out by the workers, so that the diaphragm plate 6 and the inner wall plate 2 jointly form a stress component in the bridge tower;

4) After the diaphragm 6 is installed, a worker makes two pressure-bearing frames 21 on two sides of a manhole 7 on the inner wall plate 2 in a connection state through a steel rope 26, tightens the connected steel rope 26, wraps the prepared outer wall plate 1 around a bridge tower internal stress assembly consisting of the inner wall plate 2 and the diaphragm 6, makes the horizontal and vertical positions of the diaphragm 6 on the inner side of the outer wall plate 1 relatively fixed through the joint action of the through holes on the diaphragm 6 and the outer wall plate 1 and the joint positions between the diaphragm 6 and stiffening ribs 12, makes the joint positions between the inner wall plate 2 and the outer wall plate 1 and the joint positions between the diaphragm 6 and the outer wall plate 1 fixed through welding, and further makes the outer wall plate 1, the inner wall plate 2 and the diaphragm 6 jointly form bridge tower sections, the V-shaped end of the limit bracket 13 is attached to the side wall of the inner wall plate 2 and fixed, the inner wall plate 2 is supported and limited by the limit bracket 13, the stability and the compression resistance and deformation resistance of the inner wall plate 2 in a bridge tower can be improved, then, all bridge tower sections formed by combination are connected into a whole by welding, then, the connection and fixation operation between the stay cable 4 and the anchor box 3 is carried out, when the stay cable 4 is installed and constructed, two sides of the inner wall plate 2 are simultaneously subjected to two tensile forces with opposite directions, when the tensile force of the stay cable 4 on one side of the inner wall plate 2 is increased, the tensile force can be distributed and released to the other side of the inner wall plate 2 by the connection action of the steel cable 26 to the pressure-bearing frame 21, the deformation or deflection caused by overlarge stress on one side of the inner wall plate 2 can be further avoided by the auxiliary support of the limit bracket 13, and the transverse partition plate 6 and the stiffening rib 12 are matched, the whole stress state of the bridge tower can be improved.

The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing examples, and that the foregoing description and description are merely illustrative of the principles of this invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides a new structure of cable-stayed bridge steel tower, includes outer wallboard (1), interior wallboard (2), anchor box (3) and stay cable (4), its characterized in that: the utility model discloses a bridge tower type structure is characterized in that an outer wall plate (1) is a closed changeable appearance wallboard of a bridge tower type structure, the inner side of the outer wall plate (1) is a cavity, a plurality of groups of through grooves (5) are formed in the side wall of the outer wall plate (1) along the bridge tower axis direction, inner wall plates (2) are symmetrically installed in the inner side cavity of the outer wall plate (1), the inner wall plates (2) are respectively located at the two sides of the through grooves (5), a plurality of groups of anchor boxes (3) are jointly installed between the symmetrically installed inner wall plates (2), the anchor boxes (3) are uniformly distributed along the bridge tower axis direction of the outer wall plate (1), each group of anchor boxes (3) are corresponding to each group of through grooves (5), the anchor boxes (3) are located at the inner sides of the through grooves (5), and stay cables (4) are fixedly connected in the anchor boxes (3) and extend outwards from the through grooves (5).

2. The new structure of cable-stayed bridge steel tower according to claim 1, wherein: the outer wall plate (1) is a steel plate, the cross section of the closed bridge tower structure formed by the outer wall plate (1) is rectangular, polygonal or special-shaped, a plurality of reinforcing plates (11) are fixedly arranged at the outer side connecting part of the outer wall plate (1), and a plurality of vertical stiffening ribs (12) for bearing structural stress are uniformly arranged on the inner side of the outer wall plate (1) along the axis direction of the bridge tower.

3. The new structure of cable-stayed bridge steel tower according to claim 1, wherein: the utility model discloses a bridge tower, including limiting support (13) and limiting support (1), limiting support (13) and limiting support (1) are the inside multiunit limiting support (13) of following bridge tower axis direction fixed mounting, the both ends of limiting support (13) are outside expanding "V" shape structure, every group limiting support (13) all are located the top of every group through groove (5), the notch width of through groove (5) is less than the straight line length at limiting support (13) both ends, interior wallboard (2) are two parallel risers that arrange along bridge tower axis direction, interior wallboard (2) are located the both ends position of limiting support (13) respectively, and the lateral wall of interior wallboard (2) and the "V" shape tip fixed connection of limiting support (13), interior wallboard (2) adopt the steel sheet, and be connected through "T" shape welding seam between interior wallboard (2) and the outer wallboard (1).

4. A new structure of cable-stayed bridge steel tower according to claim 3, characterized in that: the outer wall board (1) lateral wall evenly seted up multiunit through-hole, equal fixed mounting has diaphragm (6) in the through-hole, diaphragm (6) perpendicular to bridge tower axis, and diaphragm (6) are parallel with spacing support (13), diaphragm (6) adopt the steel sheet, diaphragm (6) lateral wall and outer wall board (1) inner wall laminating, and diaphragm (6) are connected through the welding seam with the laminating position of outer wall board (1).

5. The new structure of cable-stayed bridge steel tower according to claim 4, wherein: the transverse partition plate (6) side be provided with stiffening rib (12) matched with run through groove, the lateral wall of transverse partition plate (6) is laminated with the lateral wall of interior wallboard (2), and the laminating position of transverse partition plate (6) and interior wallboard (2) evenly is provided with matched with counterpoint hole groove (61), and the laminating position of transverse partition plate (6) and interior wallboard (2) adopts the welding seam to be connected.

6. The novel cable-stayed bridge steel tower structure according to claim 5, wherein: manhole (7) are all offered to diaphragm (6) and interior wallboard (2), manhole (7) are located the axle tower axis position and arrange in the middle.

7. A new structure of cable-stayed bridge steel tower according to claim 3, characterized in that: the inner wall plate (2) both sides evenly install multiunit pressure-bearing frame (21), pressure-bearing frame (21) all are located the inboard of logical groove (5) and pressure-bearing frame (21) are arranged with the bridge tower axis direction is parallel, the one end of pressure-bearing frame (21) is drum structure, and drum end runs through inner wall plate (2), install pressure-bearing dish (22) through normal running fit's mode in the drum end of pressure-bearing frame (21), the quotation middle part of pressure-bearing dish (22) is seted up flutedly, the lateral wall fixed mounting of anchor box (3) have with pressure-bearing dish (22) recess matched with rib (31).

8. The new structure of cable-stayed bridge steel tower according to claim 7, wherein: the annular side of the pressure-bearing disc (22) is uniformly provided with wave grooves (23), the wave grooves (23) are positioned on the inner side of the cylinder end of the pressure-bearing frame (21), and the pressure-bearing disc (22) is connected with the pressure-bearing frame (21) and the pressure-bearing disc (22) is connected with the anchor box (3) through welding seams.

9. The new structure of cable-stayed bridge steel tower according to claim 7, wherein: the pressure-bearing frame (21) is respectively positioned at two sides of the manhole (7) on the inner wall plate (2), component plates (24) are fixedly arranged on the side walls of the pressure-bearing frame (21), the component plates (24) are perpendicular to the pressure-bearing frame (21), triangular rib blocks (25) are arranged between the component plates (24) and the side walls of the pressure-bearing frame (21), steel ropes (26) are jointly arranged between the component plates (24) positioned at two sides of the manhole (7) on the inner wall plate (2), and the steel ropes (26) are perpendicular to the axis of the bridge tower.

10. A new structure of a cable-stayed bridge steel tower according to any one of claims 1 or 7, characterized in that: the construction method of the novel structure of the cable-stayed bridge steel tower comprises the following steps:

1) The anchor box (3) is manufactured or selected according to the installation space and the angle of the stay cable (4);

2) Mounting pressure-bearing force-transferring ribs (31) on the side wall of the anchor box (3) into grooves of the pressure-bearing disc (22), performing welding treatment, then rotating the anchor box (3) to enable the anchor box (3) and the pressure-bearing disc (22) to integrally rotate in the pressure-bearing frame (21), further enabling the anchor box (3) to be at a preset inclination angle in the through groove (5), and then performing welding treatment on the connection part of the pressure-bearing frame (21) and the pressure-bearing disc (22);

3) Welding a diaphragm plate (6) on the outer side of the inner wall plate (2) to form a bridge tower internal stress assembly, and then wrapping the bridge tower internal stress assembly formed by the inner wall plate (2) and the diaphragm plate (6) by the outer wall plate (1), and welding joint parts between the inner wall plate (2) and the outer wall plate (1) and joint parts between the diaphragm plate (6) and the outer wall plate (1) to jointly form a bridge tower section;

4) And the combined bridge tower sections are connected into a whole through welding.