Cable-stayed bridge cable anchoring structure

Abstract

The application provides a cable-stayed bridge cable anchoring structure, and relates to the technical field of anchoring structure, which comprises first and second anchoring members arranged at both ends of a cable body, the first and second anchoring members are respectively assembled and connected with a bridge and a tower wall, the first and second anchoring members are installed in the same way with steel wires at both ends inside the cable body, the first anchoring member comprises a pre-buried pipe and a connecting member, the pre-buried pipe is pre-buried on a tower wall side wall, a tower groove is formed at a central position inside the tower wall, the cable body on the tower wall on both sides of the tower groove is symmetrically arranged and installed, the connecting member is arranged on the outer wall of the cable body and one end of the steel wire, and the connecting member and the cable body penetrate through the pre-buried pipe and extend into the tower groove. The waterproof cover is arranged to avoid the problem that rainwater flows into the pre-buried pipe at the lower end of the cable body exposed outside and cannot be discharged in rainy weather, causing corrosion and damage to the cable body.

Description

Technical Field

[0001] This invention relates to the field of anchorage structural components, and more particularly to an anchorage structural component for cable-stayed bridges. Background Technology

[0002] Cable anchoring of a cable-stayed bridge refers to the process of fixing the cables on the main beam of the cable-stayed bridge to the bridge towers or piers. Existing technology for cable installation and fixing includes the following steps: first, drilling holes on the piers to fix the anchors, then installing the anchors in the drilled holes, then passing the cables through the main beam of the bridge and the anchors on the bridge towers or piers, and finally tensioning them according to design requirements.

[0003] However, in the existing technology, during long-term use, the anchoring structure of the cable is exposed to sun and rain, and corrosive factors in the environment (such as acidic substances) can easily penetrate the anchoring structure, thus corroding the steel strands, rings, and clamps. After the corrosion reaches a certain level, the steel strands are prone to slippage, which can cause the photovoltaic power generation system to collapse and cause significant property damage. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that the existing technology does not provide good protection for anchoring structures.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a cable-stayed bridge cable anchorage structure, comprising a first anchor and a second anchor disposed at both ends of the cable body, the first anchor and the second anchor being respectively assembled and connected to the bridge and the tower wall, the first anchor and the second anchor being installed in the same way as the steel wires at both ends inside the cable body, the first anchor comprising a pre-embedded pipe and a connector, the pre-embedded pipe being pre-embedded on the side wall of the tower wall, a tower groove being formed at the center of the tower wall, the cable body being symmetrically installed on both sides of the tower groove, the connector being disposed on the outer wall of the cable body and one end of the steel wire, the connector and the cable body passing through the pre-embedded pipe and extending into the tower groove, the connector being provided with a reinforcement at one end inside the tower groove, adjacent reinforcements symmetrically disposed in the tower groove being engaged and assembled, the pre-embedded pipe of the second anchor being detachably sealed with a waterproof cover between it and the outer wall of the cable, and a shock absorber being provided between the outer wall of the cable body and the pre-embedded pipe.

[0006] In a preferred embodiment, the waterproof cover has a funnel-shaped structure. Both ends of the waterproof cover are fitted between the embedded pipe and the cable body. The inner wall of the end of the waterproof cover furthest from the cable body is threadedly connected to the outer wall of the embedded pipe. The cable body is provided with a stainless steel sleeve and a sealing sleeve. One end of the sealing sleeve is sealed and engaged with the outer side of the waterproof cover. One end of the stainless steel sleeve is fixedly connected to the end of the sealing sleeve furthest from the waterproof cover. The inner wall of the stainless steel sleeve is sealed to the cable body using sealant. When installing the waterproof cover, first, the sealing sleeve and stainless steel sleeve are fitted onto the cable body, and polyurethane sealant is applied to the inside of the stainless steel sleeve to seal it against the cable body. Then, the waterproof cover is fitted onto the outside of the cable body, with the smaller diameter end of the waterproof cover sealed to the sealing sleeve, and the other end sealed to the exposed end of the embedded pipe.

[0007] In a preferred embodiment, the outer side of the pre-embedded pipe is provided with a support ring, and the inner wall of the wide-diameter end of the waterproof cover is provided with a first sealing ring. The first sealing ring is located at the outer end of the internal thread of the inner wall of the waterproof cover. One end of the sealing sleeve is fitted onto the outer wall of one end of the waterproof cover. The outer wall of the waterproof cover located inside the sealing sleeve is provided with a retaining ring. The inner side of the sealing sleeve is provided with a retaining groove that engages with the retaining ring. A second sealing ring is provided between the retaining ring and the retaining groove. A third sealing ring is provided between the sealing sleeve and the cable body. Through the sealing assembly of the first, second, and third sealing rings, the sealing performance between the waterproof cover and the cable body can be effectively guaranteed. In rainy weather, since the cable body is installed at an angle, the assembled waterproof cover has a structure that is narrow at the top and wide at the bottom. Due to the sealing connection between the stainless steel sleeve and the sealing sleeve and the cable body, rainwater flows directly down from the outside and is discharged along the outside of the waterproof cover, preventing rainwater from entering the inside of the cable body and causing corrosion.

[0008] In a preferred embodiment, the connector includes a connecting cylinder, an anchor plate, an anchor cup, and an end cap. One end of the connecting cylinder is externally connected to the cable body, and the other end of the connecting cylinder is connected to the anchor cup. A steel wire inside one end of the cable body passes through the connecting cylinder and extends into the anchor cup. The end face of the steel wire is connected to the anchor cup via the anchor plate. The anchor cup is internally connected to the pre-embedded pipe. The end cap is located at the end of the anchor cup furthest from the cable body. The connecting cylinder facilitates the connection of the cable. The end face of the main body is fixed and limited. Through the cooperation of the connecting cylinder, anchor cup and anchor plate, the positioning operation of the steel wire of the cable body and the internal end face can be realized. During installation, the connecting cylinder is first installed on the outer wall of the cable body, and the exposed steel bar is passed through the connecting cylinder and extended into the anchor cup. It is fixed by the anchor plate. After installation, or by filling the anchor cup with cold cast anchor filler, which is composed of epoxy resin with iron sand and other components, has good mechanical properties, fluidity and thermal stability, ensuring dense filling. After filling, the end cap is closed.

[0009] In a preferred embodiment, the outer wall of the pre-embedded pipe near the anchor cup is provided with an installation ring, the outer wall of the anchor cup is provided with a positioning ring, and the installation ring is located at the end of the positioning ring away from the anchor cup. The positioning ring and the installation ring are detachably assembled and connected. The positioning ring and the installation ring are provided to limit the connection after installation and prevent it from coming off the pre-embedded pipe.

[0010] In a preferred embodiment, the end of the mounting ring furthest from the pre-embedded pipe is provided with a protective cover via a first bolt. The protective cover is fitted over the outside of the connector located inside the tower trough. A fourth sealing ring is provided between the protective cover and the mounting ring. The protective cover is provided with reinforcing ribs. Through the cooperation of the fourth sealing ring and the protective cover, the connector extending into the tower trough can be protected. On the one hand, it prevents water from entering the connector. On the other hand, it can effectively prevent damage caused by accidental collision when personnel enter the tower trough for maintenance.

[0011] In a preferred embodiment, two connectors symmetrically arranged within the tower trough are inclined and intersecting. The reinforcement includes a first reinforcing strip and a second reinforcing strip. The inclination directions of the first and second reinforcing strips are the same as the directions of the pre-embedded pipes on both sides of the symmetrical arrangement. The two ends of the first and second reinforcing strips are respectively assembled and connected to the protective cover and the end face of the protective cover. The first reinforcing strip passes through the center of the second reinforcing strip. When installing the reinforcement, the first reinforcing strip can be inserted through the second reinforcing strip for limiting, and then the two ends of the first and second reinforcing strips can be respectively assembled and connected to the end faces of the two protective covers, and the other end can be adjusted and connected to the inner wall of the tower trough. Due to the restraint of the opposite side of the tower trough and the mutual restraint between the first and second reinforcing strips, the friction of the connectors within the tower wall can be increased, thereby improving the stability of the installation.

[0012] In a preferred embodiment, the first reinforcing strip and the second reinforcing strip are respectively provided with limiting plates, and the second reinforcing strip is provided with a limiting groove. The lower end of the first reinforcing strip passes through the limiting groove and extends outward. The limiting groove facilitates the installation of the first reinforcing strip and the second reinforcing strip. At the same time, the two limiting plates can limit the second reinforcing strip by the limiting plate on the first reinforcing strip, and conversely, limit the first reinforcing strip by the limiting plate on the second reinforcing strip, preventing it from dislodging.

[0013] In a preferred embodiment, an embedded part is inclinedly provided in the tower groove. One end of the embedded part is provided with a first flange. The upper end of the first or second reinforcing strip is provided with a second flange that is parallel to and coaxial with the first flange. The first flange and the second flange are fastened together by long bolts. When installing the assembled reinforcement, the lower end of the reinforcement is first assembled and connected to the end faces of the two protective covers. Then, the second flange at the upper end of the reinforcement is aligned with the first flange, and the long bolts are passed through the first flange and the second flange for fastening and fixing.

[0014] In a preferred embodiment, the first and second reinforcing strips are installed in the same way as the protective cover. The protective cover has symmetrical side grooves on its end face. The lower end of the first reinforcing strip has a side plate that engages with the side groove. The lower end of the side plate extends into the interior of the protective cover. A second bolt passes through the side plate of the protective cover. One end of the second bolt passes through one side of the protective cover, the two side plates, and the other side of the protective cover and extends outward. The bolts are connected by nuts. The first and second reinforcing strips are detachably connected to the protective cover, which facilitates the replacement and maintenance of the first and second reinforcing strips or the protective cover.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0016] 1. The present invention effectively ensures the sealing between the waterproof cover and the cable body through the sealing assembly of the first sealing ring, the second sealing ring and the third sealing ring. In rainy weather, since the cable body is installed at an angle, the assembled waterproof cover has a structure that is narrow at the top and wide at the bottom. Due to the sealing connection between the stainless steel sleeve and the sealing sleeve and the cable body, rainwater flows directly down from the outside and is discharged along the outside of the waterproof cover, avoiding the situation where rainwater enters the inside of the cable body and causes corrosion.

[0017] 2. The present invention achieves the effect of damping the cable body by setting a shock absorber between the cable body and the pre-embedded pipe.

[0018] 3. The present invention installs reinforcement components on the connectors inside the tower groove. The two reinforcement components on the symmetrically arranged connectors are engaged and assembled. Through the mutual restraint of the two reinforcement components, the installation of the cable body can be further strengthened on the premise that the cable body is firmly installed on the tower wall, which can effectively prevent the cable body from detaching.

[0019] 4. The present invention, through the cooperation of the fourth sealing ring and the protective cover, can protect the connecting parts extending into the tower trough. On the one hand, it prevents water from entering the parts, and on the other hand, it can effectively prevent damage caused by accidental collision when personnel enter the tower trough for maintenance. Attached Figure Description

[0020] Figure 1 A perspective view of a cable-stayed bridge cable anchorage structure provided by the present invention;

[0021] Figure 2 A schematic diagram of the assembly structure of the cable body and the tower wall of a cable-stayed bridge cable anchorage structure provided by the present invention;

[0022] Figure 3 A schematic diagram of a reinforcement component for a cable-stayed bridge cable anchorage structure provided by the present invention;

[0023] Figure 4 This invention provides a schematic diagram of the assembly of the first flange and the second flange of a cable-stayed bridge cable anchorage structure.

[0024] Figure 5 A schematic diagram of the assembly of the cable body, the first anchor, and the second anchor in a cable-stayed bridge cable anchorage structure provided by the present invention.

[0025] Figure 6 A schematic diagram of the internal structure assembly of the cable body and the first anchor of a cable-stayed bridge cable anchorage structure provided by the present invention;

[0026] Figure 7 A schematic diagram of a connector for a cable-stayed bridge cable anchorage structure provided by the present invention;

[0027] Figure 8 A schematic diagram of the assembly of a reinforcement component and a protective cover for a cable-stayed bridge cable anchorage structure provided by the present invention;

[0028] Figure 9 A schematic diagram of the assembly of the second anchor and the waterproof cover of a cable-stayed bridge cable anchorage structure provided by the present invention;

[0029] Figure 10 A schematic diagram of the internal structure of the pre-embedded pipe and waterproof cover assembly of a cable anchorage structure for a cable-stayed bridge provided by the present invention;

[0030] Figure 11 This invention provides a schematic diagram of the assembly of a sealing sleeve and a stainless steel sleeve for a cable-stayed bridge cable anchorage structure.

[0031] Legend:

[0032] 1. Cable body; 211. First anchor; 212. Second anchor; 3. Bridge; 4. Tower wall; 5. Steel wire; 611. Embedded pipe; 612. Connector; 7. Tower channel; 8. Reinforcing member; 9. Waterproof cover; 10. Shock absorber; 111. Stainless steel sleeve; 112. Sealing sleeve; 121. Support ring; 122. First sealing ring; 123. Snap ring; 124. Snap groove; 125. Second sealing ring; 126. Third sealing ring; 131. Connecting cylinder ; 132, Anchor plate; 133, Anchor cup; 134, End cap; 141, Mounting ring; 142, Positioning ring; 151, First bolt; 152, Protective cover; 153, Fourth sealing ring; 161, First reinforcing strip; 162, Second reinforcing strip; 17, Limiting plate; 18, Limiting groove; 191, Embedded part; 192, First flange; 193, Second flange; 194, Long bolt; 201, Side groove; 202, Side plate; 203, Second bolt. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figure 1-11This invention provides a technical solution: a cable-stayed bridge cable anchorage structure, including a first anchor 211 and a second anchor 212 disposed at both ends of the cable body 1. The first anchor 211 and the second anchor 212 are respectively assembled and connected to the bridge 3 and the tower wall 4. The first anchor 211 and the second anchor 212 are installed in the same way as the steel wires 5 at both ends inside the cable body 1. The first anchor 211 includes a pre-embedded pipe 611 and a connector 612. The pre-embedded pipe 611 is pre-embedded on the side wall of the tower wall 4. A tower groove 7 is opened at the center of the tower wall 4. The tower groove 7 is located on both sides of the tower wall 4. The cable body 1 is symmetrically installed. Connector 612 is located on the outer wall of one end of the cable body 1 and the steel wire 5. Connector 612 and cable body 1 pass through the embedded pipe 611 and extend into the tower groove 7. One end of connector 612 in the tower groove 7 is equipped with a reinforcement 8. Adjacent reinforcements 8 symmetrically arranged in the tower groove 7 are engaged and assembled. A waterproof cover 9 is detachably sealed between the embedded pipe 611 of the second anchor 212 and the outer wall of the cable. A shock absorber 10 is provided between the outer wall of the cable body 1 and the embedded pipe 611. During installation of the cable body 1, the connection is first made on the tower wall 4 and the bridge 3. A groove is cut at a suitable location, and the pre-embedded pipe 611 is installed and fixed in the groove. Then, the two ends of the cable body 1 are installed to the pre-embedded pipe 611 on the bridge 3 and the tower wall 4, respectively. During installation, the connector 612 is first assembled on the end face of the cable body 1. Then, the cable body 1 with the connector 612 is inserted from the outside through the pre-embedded pipe 611 and extended into the tower groove 7 for fixing. After the connectors 612 at both ends of the cable body 1 are installed to the bridge 3 and the tower wall 4, respectively, the reinforcement 8 is installed on the connectors 612 in the tower groove 7. Two reinforcements on the symmetrically arranged connectors 612 are installed. The 8-piece snap-fit ​​assembly, through the mutual restraint of the two reinforcing parts 8, further increases the stability of the cable body 1 installation on the premise that the cable body 1 is firmly installed on the tower wall 4, which can effectively prevent the cable body 1 from detaching. By setting a shock absorber 10 between the cable body 1 and the pre-embedded pipe 611, the shock absorption effect of the cable body 1 can be achieved, thus protecting the cable body 1. The waterproof cover 9 set in prevents rainwater from flowing along the exposed cable body 1 into the lower pre-embedded pipe 611 during rainy weather and causing corrosion damage to the cable body 1.

[0035] like Figure 1-11As shown, the waterproof cover 9 has a funnel-shaped structure. Both ends of the waterproof cover 9 are fitted between the pre-embedded pipe 611 and the cable body 1. The inner wall of the end of the waterproof cover 9 away from the cable body 1 is threadedly connected to the outer wall of the pre-embedded pipe 611. The cable body 1 is provided with a stainless steel sleeve 111 and a sealing sleeve 112. One end of the sealing sleeve 112 is sealed and fitted to the outside of the waterproof cover 9. One end of the stainless steel sleeve 111 is fixedly fitted to the end of the sealing sleeve 112 away from the waterproof cover 9. The inner wall of the stainless steel sleeve 111 is sealed and fitted to the cable body 1 with sealant. When installing the waterproof cover 9, first, the sealing sleeve 112 together with the stainless steel sleeve 111 is fitted onto the cable body 1, and polyurethane sealant is applied to the inside of the stainless steel sleeve 111 to seal and fit it with the cable body 1. Then, the waterproof cover 9 is fitted onto the outside of the cable body 1, so that the end of the waterproof cover 9 with the smaller diameter is sealed and fitted to the sealing sleeve 112, and the other end is sealed and fitted onto the exposed end of the pre-embedded pipe 611 for installation.

[0036] like Figure 1-11 As shown, the outer side of the pre-embedded pipe 611 is provided with a support ring 121, and the inner wall of one end of the waterproof cover 9 with a wide diameter is provided with a first sealing ring 122. The first sealing ring 122 is located at the outer end of the internal thread of the inner wall of the waterproof cover 9. One end of the sealing sleeve 112 is fitted onto the outer wall of one end of the waterproof cover 9. The outer wall of the end of the waterproof cover 9 located inside the sealing sleeve 112 is provided with a retaining ring 123. The inner side of the sealing sleeve 112 is provided with a retaining groove 124 that engages with the retaining ring 123. A second sealing ring 125 is provided between the retaining ring 123 and the retaining groove 124. A sealing sleeve 112 is provided with a connection between the cable body 1 and the cable body 1. With a third sealing ring 126, the sealing assembly of the first sealing ring 122, the second sealing ring 125 and the third sealing ring 126 can effectively ensure the sealing between the waterproof cover 9 and the cable body 1. In rainy weather, since the cable body 1 is installed at an angle, the assembled waterproof cover 9 has a structure that is narrow at the top and wide at the bottom. Due to the sealing connection between the stainless steel sleeve 111 and the sealing sleeve 112 and the cable body 1, rainwater can flow directly down from the outside and be discharged along the outside of the waterproof cover 9, avoiding rainwater from entering the inside of the cable body 1 and causing corrosion.

[0037] like Figure 1-11As shown, the connector 612 includes a connecting cylinder 131, an anchor plate 132, an anchor cup 133, and an end cap 134. One end of the connecting cylinder 131 is externally connected to the cable body 1, and the other end of the connecting cylinder 131 is connected to the anchor cup 133. A steel wire 5 inside one end of the cable body 1 passes through the connecting cylinder 131 and extends into the anchor cup 133. The end face of the steel wire 5 is connected to the anchor cup 133 via the anchor plate 132. The anchor cup 133 is internally connected to the pre-embedded pipe 611. The end cap 134 is located at the end of the anchor cup 133 away from the cable body 1. The connecting cylinder 131 facilitates the connection of the end face of the cable body 1. For fixed positioning, the connection cylinder 131, anchor cup 133, and anchor plate 132 work together to position the cable body 1 and the steel wire 5 on the inner end face. During installation, the connection cylinder 131 is first installed on the outer wall of the cable body 1, and the exposed steel bar is passed through the connection cylinder 131 and extended into the anchor cup 133. It is then fixed by the anchor plate 132. After installation, or by filling the anchor cup 133 with cold-cast anchor filler, which is composed of epoxy resin with iron sand and other components, has good mechanical properties, fluidity and thermal stability, ensuring dense filling, the end cap 134 is then placed on top after filling.

[0038] like Figure 1-11 As shown, the outer wall of the pre-embedded pipe 611 near the anchor cup 133 is provided with an installation ring 141, and the outer wall of the anchor cup 133 is provided with a positioning ring 142. The installation ring 141 is located at the end of the positioning ring 142 away from the anchor cup 133. The positioning ring 142 and the installation ring 141 are detachably assembled and connected. The positioning ring 142 and the installation ring 141 are provided to limit the installation of the connector 612 and prevent it from coming off the pre-embedded pipe 611.

[0039] like Figure 1-11 As shown, a protective cover 152 is provided at the end of the mounting ring 141 away from the pre-embedded pipe 611 via the first bolt 151. The protective cover 152 is fitted over the connector 612 located inside the tower trough 7. A fourth sealing ring 153 is provided between the protective cover 152 and the mounting ring 141. A reinforcing rib is provided inside the protective cover 152. Through the cooperation of the fourth sealing ring 153 and the protective cover 152, the connector 612 extending into the tower trough 7 can be protected. On the one hand, it prevents water from entering its interior, and on the other hand, it can effectively prevent accidental collisions that could cause damage when personnel enter the tower trough 7 for maintenance.

[0040] like Figure 1-11As shown, two connectors 612 symmetrically arranged within the tower groove 7 are inclined and intersecting. The reinforcing member 8 includes a first reinforcing strip 161 and a second reinforcing strip 162. The inclination directions of the first reinforcing strip 161 and the second reinforcing strip 162 are the same as the directions of the pre-embedded pipes 611 on both sides of the symmetrical arrangement. The two ends of the first reinforcing strip 161 and the second reinforcing strip 162 are respectively assembled and connected to the protective cover 152 and the end face of the protective cover 152. The first reinforcing strip 161 is inserted through the center of the second reinforcing strip 162. When installing the reinforcement 8, the first reinforcement strip 161 can be inserted through the second reinforcement strip 162 for limiting, and then the two ends of the first reinforcement strip 161 and the second reinforcement strip 162 can be respectively assembled and connected to the end faces of the two protective covers 152, and the other end can be adjusted and connected to the inner wall of the tower groove 7. Due to the restraint of the opposite side of the tower groove 7 and the mutual restraint between the first reinforcement strip 161 and the second reinforcement strip 162, the friction of the connector 612 in the tower wall 4 can be increased, thereby improving the stability of the installation.

[0041] like Figure 1-11 As shown, the first reinforcing strip 161 and the second reinforcing strip 162 are respectively provided with limiting plates 17, and the second reinforcing strip 162 is provided with a limiting groove 18. The lower end of the first reinforcing strip 161 passes through the limiting groove 18 and extends outward. The limiting groove 18 facilitates the installation between the first reinforcing strip 161 and the second reinforcing strip 162. At the same time, the two limiting plates 17 can limit the second reinforcing strip 162 on the first reinforcing strip 161, and conversely, the limiting plate 17 on the second reinforcing strip 162 can limit the first reinforcing strip 161 to prevent it from falling off or misaligning.

[0042] like Figure 1-11 As shown, an embedded part 191 is inclinedly provided in the tower groove 7. The embedded part 191 is provided at one end in the tower groove 7 with a first flange 192. The upper end of the first reinforcing strip 161 or the second reinforcing strip 162 is provided with a second flange 193 that is parallel to and coaxially arranged with the first flange 192. The first flange 192 and the second flange 193 are fastened together by long bolts 194. When installing the assembled reinforcement part 8, the lower end of the reinforcement part 8 is first assembled and connected to the end faces of the two protective covers 152. Then, the second flange 193 at the upper end of the reinforcement part 8 is aligned with the first flange 192, and the long bolts 194 are passed through the first flange 192 and the second flange 193 for fastening and fixing.

[0043] like Figure 1-11As shown, the first reinforcing strip 161 and the second reinforcing strip 162 are installed in the same way as the protective cover 152. The protective cover 152 has a side groove 201 symmetrically provided on its end face. The lower end of the first reinforcing strip 161 is provided with a side plate 202 that engages with the side groove 201. The lower end of the side plate 202 extends into the interior of the protective cover 152. A second bolt 203 is provided on the side plate 202 of the protective cover 152. One end of the second bolt 203 passes through one side of the protective cover 152, the two side plates 202 and the other side of the protective cover 152 and extends outward. It is connected by a nut. The first reinforcing strip 161 and the second reinforcing strip 162 are detachably connected to the protective cover 152, which facilitates the replacement and maintenance of the first reinforcing strip 161 and the second reinforcing strip 162 or the protective cover 152.

[0044] Working principle: When installing the cable body 1, grooves are first cut at appropriate locations on the tower wall 4 and the bridge 3, and the pre-embedded pipe 611 is installed and fixed in the grooves. Then, the two ends of the cable body 1 are installed to the pre-embedded pipe 611 on the bridge 3 and the tower wall 4 respectively. During installation, the connector 612 is first assembled on the end face of the cable body 1. Then, the cable body 1 with the connector 612 passes through the pre-embedded pipe 611 from the outside and extends into the tower groove 7 for fixing. After the connectors 612 at both ends of the cable body 1 are installed to the bridge 3 and the tower wall 4 respectively, the reinforcing parts 8 are installed on the connectors 612 in the tower groove 7 symmetrically. The two reinforcing members 8 on the connector 612 are engaged and assembled. Through the mutual restraint of the two reinforcing members 8, the installation of the cable body 1 can be further strengthened on the premise that the cable body 1 is firmly installed on the tower wall 4, which can effectively prevent the cable body 1 from detaching. By setting a shock absorber 10 between the cable body 1 and the pre-embedded pipe 611, the shock absorption effect of the cable body 1 can be achieved, thus protecting the cable body 1. The waterproof cover 9 is set to prevent rainwater from flowing along the exposed cable body 1 into the lower pre-embedded pipe 611 during rainy weather and causing corrosion damage to the cable body 1.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A cable-stayed bridge cable anchoring structure, comprising a first anchor (211) and a second anchor (212) disposed at both ends of the cable body (1), wherein the first anchor (211) and the second anchor (212) are respectively assembled and connected to the bridge (3) and the tower wall (4), characterized in that, The first anchor (211) and the second anchor (212) are installed in the same way as the steel wires (5) at both ends inside the cable body (1). The first anchor (211) includes a pre-embedded pipe (611) and a connector (612). The pre-embedded pipe (611) is pre-embedded on the side wall of the tower wall (4). A tower groove (7) is opened at the center of the tower wall (4). The cable bodies (1) on both sides of the tower wall (4) are symmetrically installed. The connector (612) is installed between the cable body (1) and the steel wire (5). The connector (612) and the cable body (1) pass through the pre-embedded pipe (611) and extend into the tower groove (7). The connector (612) is provided with a reinforcement (8) at one end in the tower groove (7). The adjacent reinforcements (8) symmetrically arranged in the tower groove (7) are engaged and assembled. The pre-embedded pipe (611) of the second anchor (212) and the outer wall of the cable are detachably sealed with a waterproof cover (9). A shock absorber (10) is provided between the outer wall of the cable body (1) and the pre-embedded pipe (611). Two connectors (612) symmetrically arranged in the tower groove (7) are arranged at an inclined cross. The reinforcement (8) includes a first reinforcement strip (161) and a second reinforcement strip (162). The inclination direction of the first reinforcement strip (161) and the second reinforcement strip (162) is the same as the direction of the pre-embedded pipes (611) on both sides of the symmetrical arrangement. The lower ends of the first reinforcement strip (161) and the second reinforcement strip (162) are respectively assembled and connected to the end faces of two protective covers (152). The first reinforcement strip (161) is arranged through the center of the second reinforcement strip (162). The first reinforcing strip (161) and the second reinforcing strip (162) are respectively provided with limiting plates (17), and the second reinforcing strip (162) is provided with a limiting groove (18). The lower end of the first reinforcing strip (161) passes through the limiting groove (18) and extends outward. An embedded part (191) is inclinedly provided in the tower groove (7). The embedded part (191) is provided with a first flange (192) at one end in the tower groove (7). A second flange (193) is provided at the upper end of the first reinforcing strip (161) or the second reinforcing strip (162) and is parallel and coaxial with the first flange (192). The first flange (192) and the second flange (193) are fastened together by long bolts (194).

2. The cable anchorage structure for a cable-stayed bridge according to claim 1, characterized in that: The waterproof cover (9) has a funnel-shaped structure. Both ends of the waterproof cover (9) are sleeved between the pre-embedded pipe (611) and the cable body (1). The inner wall of the waterproof cover (9) away from the cable body (1) is threadedly connected to the outer wall of the pre-embedded pipe (611). The cable body (1) is provided with a stainless steel sleeve (111) and a sealing sleeve (112) on the outside. One end of the sealing sleeve (112) is sealed and fitted to the outside of the waterproof cover (9). One end of the stainless steel sleeve (111) is fixedly connected to the sealing sleeve (112) away from the waterproof cover (9). The inner wall of the stainless steel sleeve (111) is sealed and fitted to the cable body (1) with sealant.

3. A cable-stayed bridge cable anchorage structure according to claim 2, characterized in that: The pre-embedded pipe (611) is provided with a support ring (121) on the outside. The waterproof cover (9) is provided with a first sealing ring (122) on the inner wall of one end of the wide diameter. The first sealing ring (122) is located at the outer end of the internal thread of the inner wall of the waterproof cover (9). One end of the sealing sleeve (112) is fitted onto the outer wall of one end of the waterproof cover (9). The waterproof cover (9) is provided with a retaining ring (123) on the outer wall of the inner side of the sealing sleeve (112). The inner side of the sealing sleeve (112) is provided with a retaining groove (124) that engages with the retaining ring (123). A second sealing ring (125) is provided between the retaining ring (123) and the retaining groove (124). A third sealing ring (126) is provided between the sealing sleeve (112) and the cable body (1).

4. A cable-stayed bridge cable anchorage structure according to claim 1, characterized in that: The connector (612) includes a connecting cylinder (131), an anchor plate (132), an anchor cup (133), and an end cap (134). One end of the connecting cylinder (131) is assembled and connected to the outside of the cable body (1), and the other end of the connecting cylinder (131) is connected and connected to the anchor cup (133). A steel wire (5) inside one end of the cable body (1) passes through the connecting cylinder (131) and extends into the anchor cup (133). The end face of the steel wire (5) is assembled and connected to the anchor cup (133) through the anchor plate (132). The anchor cup (133) is assembled and connected to the pre-embedded pipe (611) at one end. The end cap (134) is located at the end of the anchor cup (133) away from the cable body (1).

5. A cable-stayed bridge cable anchorage structure according to claim 4, characterized in that: The pre-embedded pipe (611) has an installation ring (141) on the outer wall near the anchor cup (133), and the anchor cup (133) has a positioning ring (142) on the outer wall. The installation ring (141) is located at the end of the positioning ring (142) away from the anchor cup (133), and the positioning ring (142) and the installation ring (141) are detachably assembled and connected.

6. A cable anchorage structure for a cable-stayed bridge according to claim 5, characterized in that: The end of the mounting ring (141) away from the pre-embedded pipe (611) is provided with a protective cover (152) by the first bolt (151). The protective cover (152) is sleeved on the outside of the connector (612) located in the tower groove (7). A fourth sealing ring (153) is provided between the protective cover (152) and the mounting ring (141). The protective cover (152) is provided with reinforcing ribs.

7. A cable-stayed bridge cable anchorage structure according to claim 1, characterized in that: The first reinforcing strip (161) and the second reinforcing strip (162) are installed in the same way as the protective cover (152). The protective cover (152) has a side groove (201) symmetrically arranged on its end face. The lower end of the first reinforcing strip (161) is provided with a side plate (202) that engages with the side groove (201). The lower end of the side plate (202) extends into the interior of the protective cover (152). A second bolt (203) is provided on the side plate (202) of the protective cover (152). One end of the second bolt (203) extends through one side of the protective cover (152), the two side plates (202) and the other side of the protective cover (152) and extends outward. It is connected by a nut.

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