Bridge tower end hanging cable installation device

Abstract

This invention discloses a bridge tower-end cable-stayed installation device, relating to the field of bridge construction technology. It includes: a gantry frame fixedly mounted on the top of a tower; a lifting mechanism mounted on the gantry frame for vertically lifting the stay cable from the bridge deck to the tower end; a traction mechanism mounted on the gantry frame, including a traction member detachably connected to the tower-end anchor head of the stay cable, the traction member being used to pull the tower-end anchor head into the tower; and a tensioning assembly located inside the tower, for detachably connecting to the tower-end anchor head and applying tension to the stay cable. The detachable connection between the traction member and the tower-end anchor head is released when the tensioning assembly is connected to the tower-end anchor head. This invention solves the technical problem of existing cable-stayed lifting, traction, and tensioning equipment being separately arranged and prone to spatial interference between the traction member and the tensioning assembly.

Description

Technical Field

[0001] This invention relates to the field of bridge construction technology, and in particular to a bridge tower end cable-hanging installation device. Background Technology

[0002] The installation of cable-stayed towers typically involves tower-end hanging, cable traction and threading, and tower-end tensioning. In current construction, cable traction and tower-end tensioning utilize two separate equipment systems. After soft traction, jacks and tensioning rods must be replaced at high altitude, resulting in repeated disassembly and reassembly of equipment between procedures, making the operation complex and posing high safety risks. Furthermore, when the tower-end anchor head is pulled to the cable guide pipe opening, the anchor head's posture and cable guide pipe angle are prone to deviation due to the weight of the cable and construction loads, making manual adjustment inaccurate and inefficient. In addition, existing tower-top gantry frames have a single function, primarily providing lifting points or work platforms, and cannot systematically integrate multiple functions such as cable lifting, traction, and tensioning. The lack of organic connection between equipment leads to multiple rearrangements of wire ropes and adjustments of equipment positions during construction, further increasing high-altitude work time and safety risks. To address the problems of fragmented procedures, repeated disassembly and reassembly of equipment, difficulty in controlling the anchor head's entry angle into the tower, and low integration of tower-top equipment in the existing technology, it is necessary to provide an installation device that can achieve integrated operation of cable-stayed tower-end hanging, lifting, traction, and tensioning. Summary of the Invention

[0003] This invention provides a bridge tower end cable-hanging installation device, which can solve the technical problem of existing cable-hanging lifting, traction, and tensioning equipment being arranged separately and the traction component and tensioning component being prone to spatial interference.

[0004] To address the above problems, the present invention provides a bridge tower end cable-stayed installation device, comprising: The gantry is fixedly installed at the top of the tower. A lifting mechanism, mounted on the gantry, is used to vertically lift the stay cables from the bridge deck to the tower end; A traction mechanism, mounted on the gantry, includes a traction component detachably connected to the tower end anchor head of the cable, the traction component being used to pull the tower end anchor head into the cable tower; The tensioning assembly, located inside the tower, is used to detachably connect to the tower end anchor head and apply tension force to the stay cables; The detachable connection between the traction member and the tower end anchor is in a released state when the tensioning assembly is connected to the tower end anchor.

[0005] The bridge tower end cable-hanging installation device provided by the present invention has, but is not limited to, the following beneficial effects compared with the prior art: By integrating the lifting mechanism, traction mechanism and tensioning components into the same gantry, the vertical lifting, traction into the tower and tensioning at the tower end of the stay cable are completed sequentially on the same load-bearing structure. This avoids the cumbersome operations of changing lifting tools, reinstalling equipment and repeatedly disassembling and assembling connecting parts between different processes in traditional construction, thereby significantly reducing the number of high-altitude operations at the top of the tower and reducing construction safety risks. By incorporating a detachable traction component in the traction mechanism that is already released when the tensioning assembly connects to the tower end anchor, reliable traction of the anchor during the traction phase is ensured, while also providing installation space for the tensioning assembly. This avoids spatial conflicts between the traction component and the tensioning assembly, eliminating the need to remove the traction device from the confined space inside the tower. The entire construction process can be completed on the same gantry system, achieving integrated continuous operation of lifting, traction, and tensioning. This effectively improves the construction efficiency, safety, and ease of operation of cable-stayed tower end installation.

[0006] Preferably, the lifting mechanism includes a winch fixedly mounted on the gantry and a pulley block mounted on the top of the gantry. The pulley block includes a fixed pulley and a movable pulley. The winch is connected to the pulley block via a wire rope. The movable pulley is provided with a lifting device for connecting the stay cable.

[0007] Preferably, there are two lifting mechanisms, which are respectively arranged on both sides of the gantry, and the two lifting mechanisms form two independent lifting points.

[0008] Preferably, the traction mechanism further includes a traction winch fixedly mounted on the gantry and a guide trolley mounted on the gantry. One end of the traction member is connected to the traction winch, and the other end is detachably connected to the tower end anchor after passing around the guide trolley.

[0009] Preferably, the traction end of the traction member is provided with a traction head, and the traction head is detachably threadedly connected to the tower end anchor head through a connector.

[0010] Preferably, the traction winch is located in the middle area of ​​the gantry, and the traction head passes through the guide trolley into the tower and is lowered to the bridge deck along the tower end cable sleeve.

[0011] Preferably, the tensioning assembly includes a tensioning rod and a tensioning nut. One end of the tensioning rod is provided with a connection structure adapted to the thread of the tower end anchor head, and the other end of the tensioning rod passes through the tensioning nut. The tensioning nut is used to lock the tensioning rod to maintain the tension of the cable.

[0012] Preferably, the tensioning assembly further includes a connector, which includes a first threaded section and a second threaded section connected to each other. The first threaded section is threadedly connected to the tensioning rod, and the second threaded section is threadedly connected to the tower end anchor head.

[0013] Preferably, the gantry includes a main lifting beam, a main longitudinal beam, columns, and diagonal braces. The main lifting beam is located at the top of the gantry and extends laterally along the bridge. The main longitudinal beam extends longitudinally along the bridge. The columns are vertically located below the main longitudinal beams. The diagonal braces connect the columns and the main longitudinal beams.

[0014] Preferably, the gantry further includes a distribution beam disposed on the main longitudinal beam, and the lifting mechanism and / or the traction mechanism are fixedly disposed on the distribution beam. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a bridge tower end cable-hanging installation device according to an embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of local structure Figure 1 ; Figure 3 for Figure 1 Schematic diagram of local structure Figure 2 ; Figure 4 This is a schematic diagram of the structure of the traction mechanism and the stay cable in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the tensioning component and the stay cable in an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures: 100. Tower; 110. Gantry; 200. Lifting mechanism; 210. Winch; 220. Pulley block; 221. Fixed pulley; 222. Movable pulley; 230. Lifting device; 300. Traction mechanism; 310. Traction component; 311. Traction head; 320. Traction winch; 330. Guide trolley; 400. Tensioning assembly; 410. Tensioning rod; 420. Tensioning nut; 430. Connector; 500. Stay cable; 510. Tower end anchor. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, specific embodiments of this application are described clearly and completely below with reference to the accompanying drawings. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.

[0019] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the specification of this application is for the purpose of describing specific embodiments only and is not intended to limit this application; the terms "comprising," "including," "having," "containing," "comprise," etc., in the specification, claims, and accompanying drawings of this application are open-ended terms, indicating that a method comprises one or more steps, or an apparatus comprises one or more elements, but not excluding the inclusion of other steps or elements. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] It should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, parts, or groups of features, integers, steps, or parts.

[0023] like Figures 1 to 4 As shown in the figure, an embodiment of the present invention provides a bridge tower-end cable-stayed installation device, including a gantry 110, a lifting mechanism 200, a traction mechanism 300, and a tensioning assembly 400. The gantry 110 is fixedly installed on the top of the tower 100. The lifting mechanism 200 is installed on the gantry 110 and is used to vertically lift the stay cable 500 from the bridge deck to the tower end. The traction mechanism 300 is installed on the gantry 110 and includes a traction member 310 detachably connected to the tower end anchor head 510 of the stay cable 500. The traction member 310 is used to pull the tower end anchor head 510 into the tower 100. The tensioning assembly 400 is installed inside the tower 100 and is used to detachably connect to the tower end anchor head 510 and apply tension to the stay cable 500. The detachable connection between the traction member 310 and the tower end anchor head 510 is in a released state when the tensioning assembly 400 is connected to the tower end anchor head 510.

[0024] A gantry frame 110 is fixedly mounted on the top of the pylon 100. The gantry frame 110 can be constructed from welded or bolted steel sections and serves to support the lifting mechanism 200 and the traction mechanism 300, transferring the load to the top of the pylon 100. The lifting mechanism 200, mounted on the gantry frame 110, is used to vertically lift the stay cable 500 from the bridge deck to the pylon end. The traction mechanism 300, mounted on the gantry frame 110, includes a traction member 310 detachably connected to the pylon end anchor 510 of the stay cable 500, which is used to pull the pylon end anchor 510 into the pylon 100. A tensioning assembly 400, located inside the pylon 100, is detachably connected to the pylon end anchor 510 and applies tension to the stay cable 500.

[0025] The detachable connection between the traction component 310 and the tower end anchor head 510 is a releaseable connection. When the tensioning assembly 400 is connected to the tower end anchor head 510, the connection between the traction component 310 and the tower end anchor head 510 is in a released state. That is to say, after the traction component 310 completes the traction task, it separates from the tower end anchor head 510, making room for the installation of the tensioning assembly 400, thereby enabling the entire process of lifting, traction, and tensioning of the stay cable 500 to be completed on the same gantry 110 system.

[0026] In this embodiment, the lifting mechanism 200 adopts a combination of a winch 210 and a pulley block 220. It can be understood that the lifting mechanism 200 may also adopt a combination of a hydraulic cylinder and a chain drive mechanism, or a combination of an electric push rod and a gear and rack drive mechanism.

[0027] In this embodiment of the application, the lifting mechanism 200 includes a winch 210 fixedly mounted on the gantry 110 and a pulley block 220 mounted on the top of the gantry 110. The pulley block 220 includes a fixed pulley 221 and a movable pulley 222. The winch 210 is connected to the pulley block 220 by a wire rope. The movable pulley 222 is provided with a lifting device 230 for connecting the cable 500.

[0028] The winch 210 can be fixed to the distribution beam of the gantry 110. In the pulley block 220, the fixed pulley 221 is fixed to the main lifting beam of the gantry 110, and the movable pulley 222 is vertically and flexibly arranged below the fixed pulley 221.

[0029] The pulley block 220 is installed on the top of the gantry 110, the fixed pulley 221 is fixed on the main lifting beam of the gantry 110, and the movable pulley 222 is installed below the fixed pulley 221 in a height-adjustable manner.

[0030] Specifically, one end of the wire rope is connected to the drum of the winch 210, and the other end passes sequentially over a fixed pulley 221 and a movable pulley 222 before being fixed to the gantry 110. A lifting device 230 is mounted on the movable pulley 222, which is used to connect to the stay cable 500. When the winch 210 starts, it drives the movable pulley 222 to rise and fall by winding and unwinding the wire rope, thereby causing the stay cable 500 to rise and fall vertically via the lifting device 230. The lifting device 230 can be a hook, a lifting ring, or a fiber sling, etc.

[0031] Specifically, one end of the wire rope is connected to the drum of the winch 210, and the other end passes sequentially over a fixed pulley 221 and a movable pulley 222 before being fixed to the gantry 110. A lifting device 230 is mounted on the movable pulley 222, which is used to connect to the stay cable 500. When the winch 210 starts, it drives the movable pulley 222 to rise and fall by winding and unwinding the wire rope, thereby causing the stay cable 500 to rise and fall vertically via the lifting device 230. The lifting device 230 can be a hook, a lifting ring, or a fiber sling, etc.

[0032] In this embodiment, there are two sets of lifting mechanisms 200, which are respectively installed on both sides of the gantry 110, and the two sets of lifting mechanisms 200 form two independent lifting points.

[0033] The two lifting mechanisms 200 operate independently, forming two independent lifting points. Specifically, the left lifting mechanism 200 includes a left winch 210, a left pulley block 220, and a left lifting device 230, while the right lifting mechanism 200 includes a right winch 210, a right pulley block 220, and a right lifting device 230. The two lifting points are arranged laterally along the bridge and can be used to lift different stay cables 500 separately, or to lift the same stay cable 500 together to maintain cable balance.

[0034] In this embodiment of the application, the traction mechanism 300 further includes a traction winch 320 fixedly mounted on the gantry 110 and a guide trolley 330 mounted on the gantry 110. One end of the traction member 310 is connected to the traction winch 320, and the other end is detachably connected to the tower end anchor head 510 after passing around the guide trolley 330.

[0035] Specifically, one end of the traction component 310 is fixed to the drum of the traction winch 320. The other end of the traction component 310 is detachably connected to the tower end anchor head 510 after passing over the guide trolley 330.

[0036] When the traction winch 320 starts, it applies a traction force into the tower 100 to the tower end anchor head 510 through the winding traction component 310. The guide trolley 330 is used to change the direction of the traction component 310, allowing it to pass through the cable guide tube inside the tower 100 from the gantry 110 to the bridge deck and connect with the tower end anchor head 510. The traction component 310 can be a flexible traction component such as a wire rope, fiber rope, or chain.

[0037] In this embodiment of the application, the traction end of the traction member 310 is provided with a traction head 311, and the traction head 311 is detachably threadedly connected to the tower end anchor head 510.

[0038] Specifically, one end of the traction head 311 is provided with an internal threaded hole, which is connected to the external thread at the tail of the tower end anchor head 510. The traction head 311, the connecting head 430, and the tower end anchor head 510 are arranged coaxially to ensure that the traction force is transmitted axially.

[0039] After traction is completed, loosening the traction head 311 will separate it from the tower end anchor head 510, achieving a releasable connection between the traction component 310 and the tower end anchor head 510. This threaded connection method is reliable and easy to disassemble, making it suitable for high-altitude working environments.

[0040] In this embodiment of the application, the traction winch 320 is located in the middle region of the gantry 110, and the traction head 311 passes through the guide trolley 330 into the interior of the tower 100 and is lowered to the bridge deck along the tower end cable sleeve.

[0041] In the above structure, the traction head 311 passes through the guide trolley 330 into the tower 100 and is lowered to the bridge deck along the tower end cable sleeve. Specifically, the tower wall of the tower 100 is provided with a cable sleeve for the stay cable 500 to pass through. The cable sleeve penetrates the tower wall, with its inner end located inside the tower 100 and its outer end facing the bridge deck. The traction component 310 passes from inside the tower 100 through the cable sleeve to the bridge deck, and the traction head 311 is connected to the tower end anchor head 510 on the bridge deck.

[0042] When the traction winch 320 is winding up, the traction component 310 pulls the tower end anchor head 510 from the bridge deck along the cable sleeve into the interior of the cable tower 100. The guide trolley 330 is set near the inner end of the cable sleeve to guide the traction component 310 to accurately enter the cable sleeve and avoid friction or jamming between the traction component 310 and the cable sleeve end.

[0043] In this embodiment of the application, the tensioning assembly 400 includes a tensioning rod 410 and a tensioning nut 420. One end of the tensioning rod 410 is provided with a connection structure that is threadedly adapted to the tower end anchor head 510. The other end of the tensioning rod 410 passes through the tensioning nut 420. The tensioning nut 420 is used to lock the tensioning rod 410 to maintain the tension of the cable 500.

[0044] During tensioning, first connect the tension rod 410 to the tower end anchor head 510 via thread. Then, install the tension nut 420, support foot, and jack on the tension rod 410 in sequence. After the jack is activated, it pushes the tension rod 410, and the tension force is transmitted to the tower end anchor head 510 through the tension rod 410, applying tension force to the stay cable 500.

[0045] After tensioning is completed, tighten the tension nut 420 and lock the tension rod 410 to maintain the tension of the stay cable 500. After tensioning is completed, remove the jacks and support feet, keep the tension nut 420 locked, and complete the permanent anchoring of the stay cable 500.

[0046] In this embodiment of the application, the tensioning assembly 400 further includes a connector 430, which includes a first threaded section and a second threaded section connected to each other. The first threaded section is threadedly connected to the tensioning rod 410, and the second threaded section is threadedly connected to the tower end anchor head 510.

[0047] Specifically, the connector 430 is a cylindrical structure with threads at both ends. The first threaded section has external threads, which mate with the internal threaded hole at the end of the tension rod 410; the second threaded section has internal threaded holes, which mate with the external threads at the tail of the tower end anchor head 510. The connector 430 coaxially connects the tension rod 410 and the tower end anchor head 510, allowing the tension force to be transmitted from the tension rod 410 to the tower end anchor head 510 via the connector 430.

[0048] The connector 430 makes the connection between the tension rod 410 and the tower end anchor 510 more flexible, facilitates the adaptation between tension rods 410 of different specifications and anchors of different specifications, and improves the versatility of the tensioning assembly 400.

[0049] In this embodiment of the application, the gantry 110 includes a main lifting beam, a main longitudinal beam, a column, and diagonal braces. The main lifting beam is disposed at the top of the gantry 110 and extends laterally along the bridge. The main longitudinal beam extends longitudinally along the bridge. The column is vertically disposed below the main longitudinal beam. The diagonal braces are connected between the column and the main longitudinal beam.

[0050] In the above structure, the main lifting beam is located at the top of the gantry 110 and extends laterally along the bridge. The main lifting beam is used to install the fixed pulley 221 of the lifting mechanism 200 and the main lifting point, and is the main load-bearing component of the gantry 110.

[0051] The main longitudinal beam extends along the longitudinal direction of the bridge and is fixedly connected to the main lifting crossbeam. The main longitudinal beam is used to distribute the load along the longitudinal direction of the bridge and transfer the load borne by the main lifting crossbeam to the columns.

[0052] The columns are vertically installed below the main longitudinal beam. The top of the column is fixedly connected to the main longitudinal beam, and the bottom of the column is fixedly connected to the top of the pylon 100 via embedded parts. The columns are used to transfer the load of the gantry 110 to the top of the pylon 100.

[0053] The diagonal brace connects the column and the main longitudinal beam. One end of the diagonal brace is fixedly connected to the column, and the other end is fixedly connected to the main longitudinal beam, forming a triangular stable structure together with the column and the main longitudinal beam. The diagonal brace is used to improve the lateral stiffness and overall stability of the gantry 110, preventing lateral instability of the gantry 110 under horizontal loads.

[0054] The main lifting beams, main longitudinal beams, columns, and diagonal braces are all steel components, and the components are fixedly connected by welding or bolts.

[0055] In this embodiment of the application, the gantry 110 further includes a distribution beam, which is disposed on the main longitudinal beam, and the lifting mechanism 200 and / or the traction mechanism 300 are fixedly disposed on the distribution beam.

[0056] Specifically, there can be multiple distribution beams, which are arranged at different positions on the main longitudinal beam according to the installation requirements of equipment such as winch 210 and traction winch 320. Winch 210 and traction winch 320 are fixed to the distribution beams by bolts or welding.

[0057] The distribution beam disperses the concentrated load of the equipment to the main longitudinal beam, and then to the top of the 100 tower via the columns. The distribution beam improves the ability of the gantry 110 to withstand concentrated loads, avoids local stress concentration caused by the direct action of equipment loads on the main longitudinal beam, and extends the service life of the gantry 110.

[0058] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A bridge tower end cable-hanging installation device, characterized in that, include: The gantry (110) is fixedly installed on the top of the tower (100); A lifting mechanism (200) is installed on the gantry (110) for vertically lifting the stay cable (500) from the bridge deck to the tower end; A traction mechanism (300) is provided on the gantry (110) and includes a traction member (310) detachably connected to the tower end anchor (510) of the stay cable (500). The traction member (310) is used to pull the tower end anchor (510) into the cable tower (100). Tensioning assembly (400), disposed inside tower (100), for detachable connection with tower end anchor (510) and for applying tension force to stay cable (500); The detachable connection between the traction member (310) and the tower end anchor (510) is in a released state when the tensioning assembly (400) is connected to the tower end anchor (510).

2. The bridge tower end cable-hanging installation device according to claim 1, characterized in that, The lifting mechanism (200) includes a winch (210) fixedly mounted on the gantry (110) and a pulley block (220) mounted on the top of the gantry (110). The pulley block (220) includes a fixed pulley (221) and a movable pulley (222). The winch (210) is connected to the pulley block (220) via a wire rope. The movable pulley (222) is provided with a lifting device (230) for connecting the stay cable (500).

3. The bridge tower end cable-hanging installation device according to claim 2, characterized in that, There are two sets of lifting mechanisms (200), which are respectively set on both sides of the gantry (110). The two sets of lifting mechanisms (200) form two independent lifting points.

4. The bridge tower end cable-hanging installation device according to claim 1, characterized in that, The traction mechanism (300) further includes a traction winch (320) fixedly mounted on the gantry (110) and a guide trolley (330) mounted on the gantry (110). One end of the traction member (310) is connected to the traction winch (320), and the other end is detachably connected to the tower end anchor head (510) after passing around the guide trolley (330).

5. A bridge tower end cable-hanging installation device according to claim 4, characterized in that, The traction end of the traction member (310) is provided with a traction head (311), and the traction head (311) is detachably threadedly connected to the tower end anchor head (510).

6. The bridge tower end cable-hanging installation device according to claim 5, characterized in that, The traction winch (320) is located in the middle area of ​​the gantry (110), and the traction head (311) passes through the guide trolley (330) into the tower (100) and is lowered to the bridge deck along the tower end cable sleeve.

7. A bridge tower end cable-hanging installation device according to claim 1, characterized in that, The tensioning assembly (400) includes a tension rod (410) and a tension nut (420). One end of the tension rod (410) is provided with a connection structure that is threadedly adapted to the tower end anchor head (510). The other end of the tension rod (410) passes through the tension nut (420). The tension nut (420) is used to lock the tension rod (410) to maintain the tension of the stay cable (500).

8. A bridge tower end cable-hanging installation device according to claim 7, characterized in that, The tensioning assembly (400) further includes a connector (430), which includes a first threaded section and a second threaded section connected to each other. The first threaded section is threadedly connected to the tensioning rod (410), and the second threaded section is threadedly connected to the tower end anchor head (510).

9. A bridge tower end cable-hanging installation device according to claim 1, characterized in that, The gantry (110) includes a main lifting beam, a main longitudinal beam, a column and a diagonal brace. The main lifting beam is located at the top of the gantry (110) and extends laterally along the bridge. The main longitudinal beam extends longitudinally along the bridge. The column is vertically located below the main longitudinal beam. The diagonal brace connects the column and the main longitudinal beam.

10. A bridge tower end cable-hanging installation device according to claim 9, characterized in that, The gantry (110) also includes a distribution beam, which is disposed on the main longitudinal beam, and the lifting mechanism (200) and / or the traction mechanism (300) are fixedly disposed on the distribution beam.

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