Anchor head unit structure, bridge connection structure, cable-stayed bridge and manufacturing method thereof

Abstract

The present invention provides an anchor head unit structure, including an anchor tube unit component, and an upper flange plate of the anchor head unit, a web plate of the anchor head unit, a connecting plate and a lower flange plate of the anchor head unit respectively fixedly connected to the anchor tube unit component; the upper and lower flange plates and the connecting plate of the anchor head unit are respectively provided with mounting holes, and the mounting holes are used for detachable connection with the main beam rod. The web plate of the anchor head unit is arranged parallel to the central axis of the anchor tube unit component; the upper and lower flange plates of the anchor head unit are arranged parallel to the two ends of the web plate of the anchor head unit; the connecting plate is arranged at one end of the web plate of the anchor head unit away from the anchor tube unit component. A bridge connection structure and a cable-stayed bridge including the above-mentioned anchor head unit structure, as well as a manufacturing method of the bridge connection structure are also provided. The anchor head unit structure, bridge connection structure, cable-stayed bridge and the manufacturing method thereof provided by the present invention can solve the problems of large overall structural size and weight, and deformation caused by stress during assembly in the prior art.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge manufacturing, and in particular relates to an anchor head unit structure, a bridge connection structure, a cable-stayed bridge and a manufacturing method thereof. Background Art

[0002] With the rapid development of social economy, urban traffic pressure is also increasing. At the same time, the development of steel bridges is also moving towards large spans and lightweight. As a cable system, cable-stayed bridges have a larger span capacity than beam bridges and better economy than suspension bridges. They have become the most important type of long-span bridges and will continue to play an important role in bridge construction in the next century.

[0003] The anchor head unit is the main force-bearing unit of the cable-stayed bridge structure, and its manufacturing accuracy is directly related to the force transmission effect of the cable-stayed cable. In the existing cable-stayed bridge, the anchor head unit is mostly welded to the main beam rod by welding. This connection method is an integrated fixed connection. Therefore, during the hoisting and transportation process, the anchor head unit and the main beam rod need to be transported at the same time, which will inevitably cause the overall size of the transportation to be too large, and the overall weight of the hoisting will be too large, which is not conducive to the transportation and hoisting work. At the same time, if there are too many welding parts, the welding stress will also cause the deformation of the main beam rod or the anchor head unit, which will seriously affect the manufacturing accuracy of the bridge, and then affect the force transmission effect of the cable-stayed cable. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide an anchor head unit structure, a bridge connection structure, a cable-stayed bridge and a manufacturing method thereof, so as to solve the problems of large overall structural size and weight, and deformation caused by stress during assembly in the prior art.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] An anchor head unit structure, comprising an anchor pipe unit component, and an anchor head unit upper flange plate, an anchor head unit web plate, a connecting plate and an anchor head unit lower flange plate respectively fixedly connected to the anchor pipe unit component; the anchor head unit upper flange plate, the anchor head unit lower flange plate and the connecting plate are respectively provided with mounting holes, and the mounting holes are used for detachable connection with the main beam rod;

[0007] The plate surface of the anchor head unit web is arranged parallel to the central axis of the anchor tube unit component and is fixedly connected to the outer wall of the anchor tube unit component; the anchor head unit upper flange plate and the anchor head unit lower flange plate are respectively arranged parallel to the two ends of the anchor head unit web in the length direction, and are respectively fixedly connected to the anchor head unit web and the anchor tube unit component; the connecting plate is arranged at one end of the anchor head unit web away from the anchor tube unit component and is fixedly connected to the anchor head unit web.

[0008] Further improvements to the above technical solution are:

[0009] The anchor pipe unit comprises an anchor pipe and anchor pads respectively arranged at two ends of the anchor pipe in the length direction.

[0010] The length direction of the anchor pipe; the angle range between the plate surface of the anchor plate and the central axis of the anchor pipe is 89.85° to 90.15°.

[0011] The spacing tolerance range between the upper flange plate of the anchor head unit and the lower flange plate of the anchor head unit is ±0.5mm; the spacing tolerance range between the connecting plate and the central axis of the anchor pipe unit is ±2mm.

[0012] The present invention also provides a bridge connection structure, comprising a main beam member, an anchor head unit structure detachably connected to the main beam member, and a connecting member; the anchor head unit structure is the above-mentioned anchor head unit structure; fixing holes are respectively provided at positions of the main beam member corresponding to the mounting holes; and the connecting member is passed through the mounting holes and the fixing holes.

[0013] Furthermore, the main beam member includes a main beam web, a main beam upper flange plate and a main beam lower flange plate respectively arranged at both ends of the main beam web; the main beam upper flange plate and the main beam lower flange plate are respectively arranged perpendicular to the main beam web.

[0014] Further, it also includes a joint plate and / or a main beam stiffening rib;

[0015] One end of the joint plate is fixedly connected to the main beam web, and the other end is provided with a fixing hole for detachably connecting with the anchor head unit structure;

[0016] The main beam stiffening rib is fixed to the lower part of the main beam web.

[0017] The present invention also provides a cable-stayed bridge, comprising the above-mentioned bridge connection structure.

[0018] The present invention also provides a method for manufacturing a bridge connection structure, comprising the following steps:

[0019] Provide main beam members and anchor head unit structural members respectively;

[0020] The main beam rod comprises a main beam web, a main beam upper flange plate and a main beam lower flange plate respectively arranged at both ends of the main beam web, and a joint plate fixedly connected to the main beam web; the main beam upper flange plate, the main beam lower flange plate and the joint plate are respectively arranged perpendicular to the main beam web; the joint plate is provided with a fixing hole;

[0021] The anchor head unit structural member comprises an anchor tube unit, and an upper flange plate of the anchor head unit, a web plate of the anchor head unit, a connecting plate and a lower flange plate of the anchor head unit respectively fixedly connected to the anchor tube unit; the plate surface of the web plate of the anchor head unit is arranged parallel to the central axis of the anchor tube unit, and is fixedly connected to the outer wall of the anchor tube unit; the upper flange plate of the anchor head unit and the lower flange plate of the anchor head unit are respectively arranged parallel to the two ends of the web plate of the anchor head unit in the length direction, and are respectively fixedly connected to the web plate of the anchor head unit and the anchor tube unit; the connecting plate is arranged at one end of the web plate of the anchor head unit away from the anchor tube unit, and is fixedly connected to the web plate of the anchor head unit;

[0022] Draw the assembly angle line of the anchor tube unit on the web of the main beam, and determine the positions of the fixing holes on the web of the main beam and the upper flange plate of the main beam based on the fixing holes on the joint plate and the assembly angle line of the anchor tube unit; draw the assembly position line of the web of the anchor head unit on the anchor tube unit, the upper flange plate of the anchor head unit, the lower flange plate of the anchor head unit and the connecting plate; determine the positions of the installation holes on the upper flange plate of the anchor head unit, the lower flange plate of the anchor head unit and the connecting plate according to the positions of the fixing holes on the web of the main beam, the upper flange plate of the main beam and the joint plate.

[0023] Furthermore, the spacing tolerance range between the joint plate and the upper flange plate of the main beam is 0-+1mm; the perpendicularity between the two end surfaces in the length direction of the anchor pipe and the central axis of the anchor pipe is not greater than 0.5mm; the angle range between the plate surface of the anchor pad and the central axis of the anchor pipe is 89.85°~90.15°; the spacing tolerance range between the upper flange plate of the anchor head unit and the lower flange plate of the anchor head unit is ±0.5mm; the spacing tolerance range between the connecting plate and the central axis of the anchor pipe unit is ±2mm; the upper flange plate of the anchor head unit, the lower flange plate of the anchor head unit and the connecting plate all have a 4-6mm margin at the free end when cutting; the width and height tolerance range of the web of the anchor head unit is +5-+6mm.

[0024] According to the technical solution of the present invention, the anchor head unit structure of the present invention is provided with a mounting hole, and the mounting hole is used for detachable connection with the main beam rod, so that the bridge connection structure is detachably connected; the anchor head unit structure and the main beam rod can be hoisted and transported separately, which greatly reduces the overall size and weight of the structure, reduces the difficulty of assembly, improves the assembly accuracy, and avoids stress deformation, thereby improving the manufacturing accuracy. The manufacturing method of the bridge connection structure of the present invention has simple steps and effectively ensures the installation accuracy. Moreover, the bridge connection structure of the present invention is a brand-new structure, which further improves and develops the bridge manufacturing technology of the cable-stayed bridge, and is of great significance to the bridge manufacturing industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1This is a schematic structural diagram of the anchor head unit structure of Example 1 of the present invention.

[0026] Figure 2 This is a schematic structural diagram of a bridge connection structure according to Embodiment 2 of the present invention.

[0027] Figure 3 This is a schematic diagram of the side structure of the main beam member of Example 2 of the present invention.

[0028] Figure 4 This is a schematic diagram of the main beam structure of Example 2 of the present invention.

[0029] Figure 5 It is a side structural schematic diagram of the bridge connection structure of Example 2 of the present invention.

[0030] Figure 6 It is a side view structural schematic diagram of the anchor head unit structure of Example 1 of the present invention.

[0031] Figure 7 This is a schematic structural diagram of an upper flange plate of an anchor head unit and a lower flange plate of an anchor head unit according to Example 1 of the present invention.

[0032] Figure 8 This is a schematic structural diagram of the web of the anchor head unit according to Example 1 of the present invention.

[0033] Fig. 9 This is a schematic structural diagram of the connecting plate of Example 1 of the present invention.

[0034] Fig.10 Schematic diagram of the process of manufacturing the bridge connection structure of Example 4 of the present invention.

[0035] The meanings of the symbols in the accompanying drawings are:

[0036] 10-anchor head unit structure; 20-main beam member; 100-bridge connection structure; 11-anchor pad; 12-anchor pipe; 13-anchor head unit lower flange plate; 14-anchor head unit web plate; 15-connecting plate; 16-anchor head unit upper flange plate; 21-main beam upper flange plate; 22-main beam web plate; 23-joint plate; 24-main beam stiffening rib; 25-main beam lower flange plate; L-assembly angle line of anchor pipe unit member; M-installation center axis of connecting part. DETAILED DESCRIPTION

[0037] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0039] Example 1: Figure 1 , Figure 2 , Figures 5 to 9 As shown, the anchor head unit structure 10 of this embodiment includes: an anchor tube unit component, and an anchor head unit upper flange plate 16, an anchor head unit web plate 14, a connecting plate 15 and an anchor head unit lower flange plate 13 respectively fixedly connected to the anchor tube unit component; the anchor head unit upper flange plate 16, the anchor head unit lower flange plate 13 and the connecting plate 15 are respectively provided with mounting holes (not shown in the figure), and the mounting holes are used for detachable connection with the main beam rod 20.

[0040] The anchor pipe unit element includes an anchor pipe 12 and anchor pads 11 respectively arranged at both ends of the anchor pipe 12 in the length direction. The large plane of the anchor pad 11 is arranged perpendicular to the axial direction of the anchor pipe 12, and the four edges of the anchor pad 11 are arranged protruding from the outer wall of the anchor pipe 12. The verticality of the two end surfaces in the length direction of the anchor pipe 12 and the central axis of the anchor pipe 12 is not greater than 0.5mm; the angle range between the large plane of the anchor pad 11 and the central axis of the anchor pipe 12 is 90°±0.15°. The central axis of the anchor pipe unit element is the central axis of the anchor pipe 12.

[0041] The length direction of the anchor head unit web 14 is arranged along the length direction of the anchor tube 12, and the large plane of the anchor head unit web 14 is arranged parallel to the central axis of the anchor tube 12, and is fixedly connected to the outer wall of the anchor tube 12. Specifically, in this embodiment, the anchor head unit web 14 and the anchor tube 12 are fixed by welding. The anchor head unit upper flange plate 16 and the anchor head unit lower flange plate 13 are respectively arranged in parallel at both ends of the length direction of the anchor head unit web 14, and are respectively fixedly connected to the anchor head unit web 14 and the outer wall of the anchor tube 12. The connecting plate 15 is arranged at one end of the anchor head unit web 14 away from the anchor tube unit, and is fixedly connected to the anchor head unit web 14.

[0042] like Figure 6 As shown, the spacing tolerance range between the upper flange plate 16 of the anchor head unit and the lower flange plate 13 of the anchor head unit is ±0.5mm, where h represents the design spacing value between the upper flange plate 16 of the anchor head unit and the lower flange plate 13 of the anchor head unit; the spacing tolerance range between the connecting plate 15 and the central axis of the anchor pipe 12 is ±2mm, where D represents the design spacing value between the connecting plate 15 and the central axis of the anchor pipe 12.

[0043] The anchor head unit structure of this embodiment realizes a detachable connection with the main beam rod of the bridge through mounting holes respectively arranged on the upper flange plate, the connecting plate and the lower flange plate of the anchor head unit. Compared with the integral welded structure, it is a split design, which can greatly reduce the overall shipping size and lifting weight of the structural parts.

[0044] Example 2: Figures 2 to 9 As shown, the bridge connection structure 100 of this embodiment includes a main beam member 20, an anchor head unit structure 10 detachably connected to the main beam member 20, and a connection member. The anchor head unit structure 10 is the anchor head unit structure 10 described in Example 1.

[0045] The main beam member 20 includes a main beam web 22, a main beam upper flange plate 21 and a main beam lower flange plate 25 respectively arranged at both ends of the main beam web 22. The main beam upper flange plate 21 and the main beam lower flange plate 25 are respectively arranged perpendicular to the main beam web 22. Specifically, in this embodiment, the components of the main beam member 20 are fixed by welding to form a structure with an "I"-shaped cross section.

[0046] The main beam rod 20 further includes a joint plate 23 and a main beam stiffening rib 24. One end of the joint plate 23 is fixedly connected to the main beam web 22, and the other end is provided with a fixing hole (not shown in the figure) for detachably connecting with the anchor head unit structure 10. The main beam stiffening rib 24 is fixed to the lower part of the main beam web 22, one end of which is abutted or fixedly connected to the main beam lower flange plate 25, and the end surface of the other end is arranged to abut against the lower end surface of the joint plate 23.

[0047] The main beam upper flange plate 21 and the main beam web plate 22 are respectively provided with fixing holes (not shown in the figure) at positions corresponding to the mounting holes, and the connecting members are inserted through the mounting holes and the fixing holes to fix the main beam rod 20 with the anchor head unit structure 10. Specifically, in this embodiment, the connecting member is a bolt, and in other embodiments, it can also be other connection structures.

[0048] like Figure 3 As shown, the spacing tolerance range between the joint plate 23 and the main beam upper flange plate 21 is 0-+1mm, where h represents the design spacing value between the joint plate 23 and the main beam upper flange plate 21.

[0049] The bridge connection structure of this embodiment has a split design for the main beam rod and the anchor head unit structure, which are detachably connected by a connecting piece. This design greatly reduces the shipping size and lifting weight of the integral structure, facilitates the shipping of the bridge connection structure and the assembly of the bridge site, and avoids the influence of welding deformation of the traditional integral welded structure on the manufacturing accuracy of the main beam rod.

[0050] Embodiment 3: The cable-stayed bridge of this embodiment comprises the bridge connection structure 100 of Embodiment 2, and further comprises inclined cables and cable towers, wherein the bridge connection structure 100 is used to fix the inclined cables.

[0051] Example 4: Fig.10 As shown, the manufacturing method of the bridge connection structure of this embodiment includes the following steps:

[0052] S1. Main beam member manufacturing:

[0053] S1.1. Main beam member main body forming: The upper and lower end surfaces of the main beam web 22 are respectively welded to the main beam upper flange plate 21 and the main beam lower flange plate 25 to make its cross section present an "I"-shaped structure.

[0054] S1.2, Line drawing: Figure 4 As shown, the assembly angle line L of the anchor pipe unit and the position line of the joint plate 23 are marked on the surface of the main beam web 22 with a marking needle.

[0055] S1.3. Assembling and welding the joint plate and the main beam stiffening rib: a fixing hole has been drilled at one end of the joint plate 23 before assembly; during assembly, the spacing tolerance between the joint plate 23 and the main beam upper flange plate 21 must be within the range of 0-1 mm.

[0056] S1.4, drilling fixing holes: the main beam rod 20 after fixing and forming is welded and inspected. After passing the inspection, the fixing hole position on the joint plate 23 and the assembly angle line L of the anchor pipe unit are used as references to mark the fixing holes, and the fixing holes on the main beam upper flange plate 21 and the main beam web plate 22 are drilled.

[0057] S2. Anchor head unit structure manufacturing:

[0058] S2.1. Anchor pipe unit manufacturing: Cut the anchor pipe raw materials according to the design requirements of the anchor pipe 12, and machine the two end faces of the anchor pipe material after cutting to ensure that the verticality between the two end faces of the anchor pipe 12 and the central axis of the anchor pipe 12 is ≤0.5mm. Weld the anchor pads 11 at both ends of the anchor pipe 12, and machine the two outer large faces of the anchor pads 11 to ensure that the angle between the outer plane of the anchor pads 11 and the central axis of the anchor pipe 12 is within the range of 90°±0.15°.

[0059] S2.2. Manufacturing of other structural parts: Cut the raw materials of the anchor head unit upper flange plate 16, the anchor head unit lower flange plate 13 and the connecting plate 15 according to the design requirements. In order to meet the hole margin requirements, the above three single parts need to leave a 4-6mm margin at the free end when cutting, and the margin is further preferably 5mm. Figure 7 and Fig. 9As shown, w represents the design length of the free end. At the same time, in order to ensure the processing accuracy of the anchor head unit web 14, precision plasma cutting is used to cut the raw materials of the anchor head unit web to ensure that the width and height tolerances of the anchor head unit web 14 are within the range of +5-+6mm, where W and H represent the design values ​​of width and height respectively.

[0060] S2.3, Assembly welding: Use a marking needle to mark the assembly position line of the anchor head unit web 14 on the anchor pipe 12, the anchor head unit upper flange plate 16, the anchor head unit lower flange plate 13 and the connecting plate 15. During assembly welding, a special tire frame is made to ensure that the angles between the anchor pipe unit, the anchor head unit upper flange plate 16 and the connecting plate 15 and the anchor head unit web 14 are correct; at the same time, ensure that the spacing tolerance between the anchor head unit upper flange plate 16 and the anchor head unit lower flange plate 13 is within the range of ±0.5mm; ensure that the spacing tolerance between the connecting plate 15 and the central axis of the anchor pipe 12 is within the range of ±2mm.

[0061] S2.4, Matching drilling: Temporarily match the anchor head unit structure and the main beam member 20, adjust the angle of the anchor pipe unit member, and ensure that the angle tolerance of the anchor pipe unit member is within the range of ±0.3°. Figure 4 As shown, α is the design angle between the central axis of the anchor pipe 12 and the horizontal direction. The mounting holes on the anchor head unit structure 10 are drilled using the positions of the fixing holes on the main beam upper flange plate 21, the main beam web plate 22 and the joint plate 23, including the mounting holes on the anchor head unit upper flange plate 16 for connecting with the main beam upper flange plate 21, the mounting holes on the connecting plate 15 for connecting with the main beam web plate 22, and the mounting holes on the anchor head unit lower flange plate 13 for connecting with the joint plate 23.

[0062] S3, overall assembly: match the anchor unit structure 10 and the main beam member 20, and insert connectors into the corresponding installation holes and fixing holes to fix the anchor unit structure 10 and the main beam member 20 into a bridge connection structure 100. In this embodiment, the connector is a bolt-like part. In other embodiments, the type of connector is not limited, as long as it can achieve a detachable connection between the anchor unit structure 10 and the main beam member 20. Specifically, in this embodiment, there are multiple connectors, and their installation positions are as follows: Figure 5 As shown, M is the installation center axis position of the connecting part.

[0063] The manufacturing method of the bridge connection structure of this embodiment is simple, and it can realize the detachable connection between the anchor head unit structure and the main beam rod, greatly reducing the problem of large overall size and weight of the overall structure in the prior art, facilitating the shipment of the bridge connection structure and the assembly of the bridge site, and avoiding the influence of welding deformation of the traditional structure on the manufacturing accuracy of the main beam rod, improving the manufacturing accuracy of the anchor pipe angle, and ensuring the accuracy of the force transmission of the cable-stayed bridge structure. The bridge connection structure of the present invention is a brand-new structure, which further improves and develops the bridge manufacturing technology of the cable-stayed bridge, and has great significance for the bridge manufacturing industry.

[0064] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The above embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A method for manufacturing a bridge connection structure, characterized in that: The following steps are involved: Provide main beam members and anchor head unit structural members respectively; The main beam rod comprises a main beam web, a main beam upper flange plate and a main beam lower flange plate respectively arranged at both ends of the main beam web, and a joint plate fixedly connected to the main beam web; the main beam upper flange plate, the main beam lower flange plate and the joint plate are respectively arranged perpendicular to the main beam web; the main beam upper flange plate, the main beam web and the joint plate are respectively provided with fixing holes; The anchor head unit structural member comprises an anchor tube unit, and an upper flange plate of the anchor head unit, a web plate of the anchor head unit, a connecting plate and a lower flange plate of the anchor head unit respectively fixedly connected to the anchor tube unit; the plate surface of the web plate of the anchor head unit is arranged parallel to the central axis of the anchor tube unit, and is fixedly connected to the outer wall of the anchor tube unit; the upper flange plate of the anchor head unit and the lower flange plate of the anchor head unit are respectively arranged parallel to the two ends of the web plate of the anchor head unit in the length direction, and are respectively fixedly connected to the web plate of the anchor head unit and the anchor tube unit; the connecting plate is arranged at one end of the web plate of the anchor head unit away from the anchor tube unit, and is fixedly connected to the web plate of the anchor head unit; Draw the assembly angle line of the anchor tube unit on the web of the main beam, and determine the positions of the fixing holes of the web of the main beam and the upper flange plate of the main beam based on the fixing holes on the joint plate and the assembly angle line of the anchor tube unit; draw the assembly position line of the web of the anchor head unit on the anchor tube unit, the upper flange plate of the anchor head unit, the lower flange plate of the anchor head unit and the connecting plate; determine the positions of the installation holes on the upper flange plate of the anchor head unit, the lower flange plate of the anchor head unit and the connecting plate according to the positions of the fixing holes on the web of the main beam, the upper flange plate of the main beam and the joint plate; The anchor head unit structure and the main beam rod are matched, and connecting pieces are inserted into the corresponding mounting holes and fixing holes, so that the anchor head unit structure and the main beam rod are fixedly formed into a bridge connection structure.

2. The method for manufacturing a bridge connection structure according to claim 1, characterized in that: The anchor pipe unit comprises an anchor pipe and anchor pads respectively arranged at two ends of the anchor pipe in the length direction.

3. The method for manufacturing a bridge connection structure according to claim 2, characterized in that: The angle between the plate surface of the anchor plate and the central axis of the anchor pipe ranges from 89.85° to 90.15°.

4. The method for manufacturing a bridge connection structure according to claim 1, characterized in that: The spacing tolerance range between the upper flange plate of the anchor head unit and the lower flange plate of the anchor head unit is ±0.5mm; the spacing tolerance range between the connecting plate and the central axis of the anchor pipe unit is ±2mm.

5. The method for manufacturing a bridge connection structure according to claim 1, characterized in that: When cutting the anchor head unit upper flange plate, the anchor head unit lower flange plate and the connecting plate, a 4-6 mm margin is left at the free end.

6. The method for manufacturing a bridge connection structure according to claim 1, characterized in that: The perpendicularity between the two end faces in the length direction of the anchor pipe and the central axis of the anchor pipe is not greater than 0.5 mm; the width and height tolerance range of the web of the anchor head unit is +5 to +6 mm.

7. The method for manufacturing a bridge connection structure according to claim 1, characterized in that: The spacing tolerance range between the joint plate and the upper flange plate of the main beam is 0 to +1 mm.

8. A bridge connection structure, characterized in that: The bridge connection structure is manufactured by the manufacturing method of the bridge connection structure according to any one of claims 1 to 7.

9. The bridge connection structure according to claim 8, characterized in that: It also includes a main beam stiffening rib; the main beam stiffening rib is fixed to the lower part of the main beam web.

10. A cable-stayed bridge, characterized in that: Comprising the bridge connection structure as claimed in claim 8 or 9.

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