Catwalk adaptive adjustment method and integrated adaptive cable saddle system

Abstract

The application provides a catwalk adaptive adjustment method and an integrated adaptive cable saddle system, a rotating cable saddle is integrated with a main cable saddle through a connecting beam to form an integrated structure, and then the catwalk forms a force transmission path of catwalk bearing cable-rotating cable saddle-connecting beam-main cable saddle when the catwalk is used, a brand-new catwalk adaptive adjustment mechanism is realized, when the catwalk structure produces displacement and stress change along with temperature change or dynamic load action in the use process, linkage of the main cable saddle and the rotating cable saddle is adopted, the technical problem that the prior art adopts a pre-embedded rigid connection mode to install the rotating cable saddle device on the main cable tower, stress redistribution and displacement deviation caused by construction load change and temperature deformation cannot be adapted, the main cable tower bears excessive additional bending moment and stress in the construction process, and the safety and durability of the main cable tower structure are affected is avoided.

Description

Technical Field

[0001] This invention belongs to the field of bridge construction technology, specifically relating to a catwalk adaptive adjustment method and an integrated adaptive cable saddle system. Background Technology

[0002] A catwalk is a commonly used high-altitude work platform in bridge construction. In the construction of bridges, especially suspension bridges, it serves as a temporary access road erected below and parallel to the main cable, running throughout the entire superstructure construction process and playing a crucial role in bridge construction. During use, a cable-switching saddle device is often installed at the top of the main tower to transfer the tension on the catwalk's load-bearing cables to the main tower. Corresponding technical solutions have been disclosed in some patent documents.

[0003] For example, patent application CN202410510301.2 discloses a tower top catwalk layout structure and conversion method adapted to a large pre-deflection of the main cable saddle. This patent effectively solves the problem of the smoothness of the tower top catwalk alignment under a large pre-deflection of the main cable saddle. It not only meets the operational needs of the personnel erecting the main cable strands in the early stage, but also ensures the operational needs of the catwalk to move towards the main span together with the main cable saddle in stages during the stiffening beam hoisting and erection stage after the lifting mechanism lifts the catwalk as a whole, cuts off the catwalk to cable saddle structure supported at the grid, and lowers the catwalk as a whole by the lifting mechanism.

[0004] However, in existing technologies, the cable saddles and main cable saddles are installed separately on the main tower, and are typically rigidly connected or welded using embedded parts and high-strength bolts. When stress concentration and displacement deviation occur in the catwalk support cables due to changes in construction loads, wind loads, or temperature, the displacement deviations cannot be corrected in a timely and effective manner. This easily leads to localized stress concentration and causes the main tower to bear more additional bending moments due to rigid anchoring, seriously affecting the safety and durability of the tower structure. Furthermore, asynchronous displacement deviations result in changes in the spatial height of the catwalk from the main cable, affecting the convenience of construction operations. Especially for long-span suspension bridges, which have higher requirements for construction precision and structural reliability, existing technologies cannot meet these requirements. Therefore, it is crucial to have an integrated adaptive cable saddle system and adaptive adjustment method that can synchronously and adaptively adjust to changes in external forces that are uncontrollable by humans in the natural environment. Summary of the Invention

[0005] To address the technical problem in the background art where rigid connections using embedded parts are commonly used when installing cable saddle devices on the main cable tower, which leads to an inability to adapt to stress redistribution and displacement deviations caused by changes in construction loads and temperature deformation, resulting in the main cable tower bearing excessive additional bending moments and stresses during construction and affecting the structural safety and durability of the main cable tower, this invention provides a catwalk adaptive adjustment method and an integrated adaptive cable saddle system.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: In a first aspect, the present invention provides a cat passage adaptive adjustment method, the cat passage adaptive adjustment method comprising: S1: The saddle is connected to the main saddle via a connecting beam to form an integrated adaptive saddle system; S2: The integrated adaptive cable saddle system is installed on the top of the main cable tower, and the load-bearing cables of the catwalk are tensioned and fixed on the saddle of the integrated adaptive cable saddle system, forming a force transmission path of catwalk load-bearing cable-saddle-connecting beam-main cable saddle. S3: When displacement or stress change occurs at any position in the integrated adaptive cable saddle system during the use of the catwalk, the integrated adaptive cable saddle system realizes synchronous displacement or overall adaptive adjustment of the rotating cable saddle and the main cable saddle through the force transmission path of the catwalk load-bearing cable-rotating cable saddle-connecting beam-main cable saddle.

[0007] Optionally, step S1 includes: S1.1: Accurately locate the placement of the connecting beam in the transition zone of the main cable saddle rib, and fix the connecting beam symmetrically on both sides of the main cable saddle rib. S1.2: Fix the cable saddle to the connecting beam; S1.3: Following the operation of step S1.2, multiple cable saddles are symmetrically arranged on the main cable saddle, forming an integrated adaptive cable saddle system together with the main cable saddle.

[0008] Optionally, in step S3, during the use of the catwalk, when the stress changes occur in the main cable on the main cable saddle and the catwalk load-bearing cable laid on the swivel cable saddle, the main cable and the catwalk load-bearing cable are simultaneously displaced, and the stress is dispersed through the force transmission path of the catwalk load-bearing cable - swivel cable saddle - connecting beam - main cable saddle.

[0009] Optionally, in step S3, during the use of the catwalk, when the main cable saddle and / or the swivel cable saddle undergo displacement changes, the swivel cable saddle and the main cable saddle are moved synchronously through the force transmission path of the catwalk load-bearing cable-swivel cable-connecting beam-main cable saddle.

[0010] Secondly, the present invention provides an integrated adaptive cable saddle system for implementing the above-described catwalk adaptive adjustment method, comprising a main cable saddle, multiple rotating cable saddles and two connecting beams; The two connecting beams are horizontally arranged on the ribs of the main cable saddle along the length direction of the main cable saddle, and are symmetrically arranged about the main cable saddle. Multiple cable saddles are symmetrically arranged on the connecting beam, forming an integrated structure of cable saddle-connecting beam-main cable saddle.

[0011] Optionally, the main cable saddle has multiple ribs, and the main cable saddle also includes a base and a saddle body; The base is fixedly installed on the main cable tower; the saddle body is fixedly installed on the base; a plurality of ribs are symmetrically arranged on both sides of the saddle body, and the ribs on the same side of the saddle body are all arranged in parallel. The lower end of the rib extends horizontally through the rib transition area to form a mounting surface, which is used to fix the connecting beam.

[0012] Optionally, the connecting beam is an I-beam, and the bottom surface of the I-beam is fixedly connected to the mounting surface; The top surface of the I-beam is used to install the cable saddle.

[0013] Optionally, the cable saddle includes a body and a clamp; The main body is fixedly connected to the top surface of the I-beam by fasteners; The clamp is fixedly installed on the upper side of the main body and is used to fix the catwalk load-bearing cable.

[0014] Optionally, the clamp is an adjustable clamping mechanism to accommodate load-bearing cables of different diameters.

[0015] Optionally, the length of the I-beam is consistent with the lateral length of the main cable saddle, the width of its lower surface is not greater than the width of the mounting surface, and it is welded to the central axis of the mounting surface.

[0016] The beneficial effects of this invention are: This invention provides a catwalk adaptive adjustment method and an integrated adaptive cable saddle system. The rotating cable saddle is integrated with the main cable saddle via a connecting beam, creating a force transmission path of catwalk load-bearing cable - rotating cable saddle - connecting beam - main cable saddle during use. This achieves a novel catwalk adaptive adjustment mechanism: when the catwalk load-bearing cable is fixed to the rotating cable saddle and the main cable is tensioned and fixed to the main saddle cable, and when the catwalk structure experiences displacement and stress changes due to temperature variations or dynamic loads during use, the linkage between the main cable saddle and the rotating cable saddle allows for adjustment via the catwalk itself. The force transmission path of the load-bearing cable-saddle-connecting beam-main cable saddle enables synchronous sliding and stress dispersion of the integrated structure, thereby providing real-time compensation and adaptive adjustment for stress and displacement. At the same time, it makes the force transmission path of the entire system clear and the force distribution uniform and reasonable. This avoids the technical problem of installing the saddle device on the main cable tower by using embedded parts in a rigid connection, which would lead to the inability to adapt to stress redistribution and displacement deviation caused by changes in construction load and temperature deformation. This would cause the main cable tower to bear excessive additional bending moment and stress during construction, affecting the structural safety and durability of the main cable tower.

[0017] Furthermore, the catwalk adaptive adjustment method of the present invention can achieve synchronous displacement while dispersing local stress, ensuring that the operating space of the catwalk and the main cable changes synchronously, ensuring construction stability and minimizing the negative impact caused by uncontrollable external force changes in the natural environment. It can meet the construction accuracy requirements of long-span suspension bridges and is particularly suitable for construction environments with limited space at the top of the main tower, enabling efficient utilization of confined spaces.

[0018] Meanwhile, the invention integrates the main cable saddle and the switch saddle, enabling synchronous displacement of the main cable and the catwalk support cable. This effectively controls the relative position between the main cable and the catwalk support cable, maintaining a reasonable construction clearance at all times. This ensures the smooth operation of equipment such as the wire winding machine and the cable tensioning machine, guaranteeing the continuity and safety of the main cable construction. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the cat-path adaptive adjustment method in this invention; Figure 2 This is an axial schematic diagram of the integrated adaptive cable saddle system in this invention; Figure 3 This is a detailed schematic diagram of the integrated adaptive cable saddle system in this invention; Figure 4 This is a schematic diagram of the cable saddle in this invention; Figure 5 This is a schematic diagram of the cable saddle and rib plate in this invention; Figure 6 This is a side view schematic diagram of the integrated adaptive cable saddle system in this invention.

[0020] The components are: 1. Main cable saddle; 11. Rib plate; 111. Rib plate transition area; 112. Mounting surface; 12. Saddle body; 13. Base; 2. Slewing cable saddle; 21. Main body; 22. Clamp; 23. Fastener; 3. Connecting beam; 4. Catwalk load-bearing cable. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0023] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0024] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0025] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0026] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] In existing technologies, cable saddles and main cable saddles are typically installed on the main cable tower separately, and are usually rigidly connected or welded using embedded parts and high-strength bolts. This approach presents at least the following problems: When stress concentration and displacement deviation occur in the catwalk support cables due to changes in construction loads, wind loads, or temperature, the displacement deviation cannot be corrected in a timely and effective manner, easily leading to localized stress concentration. Furthermore, the rigid anchoring causes the main cable tower to bear more additional bending moments, severely impacting the safety and durability of the tower structure. Simultaneously, according to construction specifications, the catwalk needs to be positioned within a certain range below the main cable during construction. In existing technologies, the catwalk support cables and main cable cannot move synchronously. When their displacement deviations are asynchronous, the spatial height of the catwalk from the main cable changes, affecting construction operations. This is especially problematic for long-span suspension bridges where higher construction precision and structural reliability are required; the aforementioned technical issues further exacerbate construction safety issues.

[0029] Example 1 See Figures 1 to 6 The diagram illustrates the catwalk adaptive adjustment method and integrated cable saddle provided in this invention. The method includes: S1: The saddle 2 is connected to the main saddle 1 via the connecting beam 3 to form an integrated adaptive saddle system; S2: The integrated adaptive cable saddle system is installed on the top of the main cable tower, and the load-bearing cable of the catwalk is anchored on the rotating cable saddle 2 of the integrated adaptive cable saddle system, forming a force transmission path of catwalk load-bearing cable 4-rotating cable saddle 2-connecting beam 3-main cable saddle 1. S3: When displacement or stress change occurs at any position in the integrated adaptive cable saddle system during the use of the catwalk, the integrated adaptive cable saddle system realizes synchronous displacement or overall adaptive adjustment of the rotating cable saddle 2 and the main cable saddle 1 through the force transmission path of the catwalk load-bearing cable 4-rotating cable saddle 2-connecting beam 3-main cable saddle 1.

[0030] In this embodiment, the cable saddle 2 is integrated with the main cable saddle 1 via the connecting beam 3, thus creating a force transmission path of catwalk load-bearing cable 4 - cable saddle 2 - connecting beam 3 - main cable saddle 1 during use. This achieves a novel catwalk adaptive adjustment mechanism: when the catwalk load-bearing cable is anchored to the cable saddle 2 and the main cable is tensioned and fixed to the main saddle cable, and when the catwalk structure experiences displacement and stress changes due to temperature variations or dynamic loads during use, the linkage between the main cable saddle 1 and the cable saddle 2 allows for adjustment via the catwalk load-bearing cable 4 - cable saddle 2. The force transmission path of the connecting beam 2-connecting beam 3-main cable saddle 1 realizes the synchronous sliding or stress dispersion of the integrated structure, thereby compensating for and adaptively adjusting stress and displacement in real time. At the same time, it makes the force transmission path of the entire system clear and the force is uniform and reasonable. It avoids the technical problem of installing the cable saddle 2 device on the main cable tower by using the method of rigid connection of embedded parts, which would lead to the inability to adapt to stress redistribution and displacement deviation caused by changes in construction load and temperature deformation, causing the main cable tower to bear excessive additional bending moment and stress during construction, affecting the structural safety and durability of the main cable tower.

[0031] Optionally, step S1 of the present invention includes: S1.1: Accurately locate the placement position of the connecting beam 3 in the rib transition area 111 of the main cable saddle 1, and fix the connecting beam 3 symmetrically on both sides of the rib plate of the main cable saddle 1. S1.2: Fix the cable saddle 2 to the connecting beam 3; S1.3: Following the operation of step S1.2, multiple cable saddles 2 are symmetrically arranged on the main cable saddle 1, forming an integrated adaptive cable saddle system together with the main cable saddle 1.

[0032] In this embodiment, the connecting beam 3 is precisely and symmetrically positioned in the rib transition zone 111 of the rib plate 11 on the main cable saddle 1, ensuring that the force transmission path is symmetrically distributed along the main cable tower axis and eliminating the torque effect caused by eccentric layout. The connecting beam 3 and the rib plate 11 are connected by a full penetration welding process, so that the integrated adaptive cable saddle system forms a high-rigidity whole, effectively suppressing the risk of weld fatigue cracking when bearing the load of the catwalk load cable 4. The symmetrical layout strategy of the cable saddle 2 further optimizes the stress distribution. When the stress of the load cable on one side suddenly surges, the symmetrical layout of the force transmission system can quickly disperse the abnormal load to the entire main cable saddle 1 structure, preventing local plastic deformation. This design is particularly suitable for construction scenarios with limited space at the top of the tower. The modular installation method allows the cable saddle system to adapt to the needs of bridges with different spans, significantly improving the versatility and economy of the construction scheme.

[0033] Optionally, in step S3 of the present invention, during the use of the catwalk, when the main cable on the main cable saddle 1 and the catwalk load-bearing cable 4 laid on the saddle 2 experience stress changes, the main cable and the catwalk load-bearing cable 4 undergo synchronous displacement, and the stress is dispersed through the force transmission path of the catwalk load-bearing cable 4-saddle 2-connecting beam 3-main cable saddle 1.

[0034] In this embodiment, when the main cable and the catwalk support cable 4 undergo displacement changes due to load or temperature variations, the rigid linkage structure of the integrated adaptive saddle system forces the deformation of the main cable and the support cable to coordinate with each other through the connecting beam 3. This transforms the shear stress originally concentrated at the anchor point of the saddle 2 into uniform compressive stress across the entire main cable saddle 1. This stress redistribution mechanism significantly reduces the peak stress on the base plate of the saddle 2, avoiding the warping deformation problem of the saddle base plate commonly found in traditional split designs. Simultaneously, the continuous force transmission path allows the horizontal tension generated during the main cable erection process to be absorbed by the larger reaction surface of the base 13 of the main cable saddle 1, reducing the risk of tensile stress damage to the tower top concrete and extending the service life of the main cable tower. This design is particularly suitable for the construction of bridges in mountainous areas with large diurnal temperature differences, automatically maintaining the smoothness of the catwalk alignment without human intervention.

[0035] Optionally, in step S3 of the present invention, when the main cable saddle 1 and / or the swivel cable saddle 2 undergo displacement changes during the use of the catwalk, the swivel cable saddle 2 and the main cable saddle 1 are moved synchronously through the force transmission path of the catwalk load-bearing cable 4-swivel cable saddle 2-connecting beam 3-main cable saddle 1.

[0036] In this embodiment, when the main cable saddle 1 is pushed out of place due to the tension of the main cable, the cable saddle 2 can achieve synchronous displacement through the rigid connection of the connecting beam 3, thus avoiding the problem of incoordination between the deformation of the main cable and the catwalk load-bearing cable. This dynamic following characteristic enables the catwalk system to maintain the design alignment throughout the entire construction cycle of main cable erection and beam segment hoisting, avoiding the risk of high-altitude operations caused by alignment deviation.

[0037] According to the construction requirements of suspension bridges, the catwalk system, as a platform for main cable construction, should always be located within a height range of approximately 1.5-1.7 meters below the main cable to provide construction personnel operating space and allow passage for equipment such as wire winding machines and cable tensioning machines. However, during the main cable erection process, as the number of cable strands increases and the main cable's self-weight gradually increases, its alignment changes and its sag increases, causing the space between the catwalk and the main cable to shrink. This may hinder the normal passage of construction equipment and affect subsequent operations.

[0038] In this invention, by achieving synchronous displacement of the main cable and the catenary support cable, the relative position between the two can be effectively controlled, and a reasonable construction clearance can always be maintained, thereby ensuring the smooth passage of equipment such as the wire winding machine and the cable tensioning machine, and ensuring the continuity and safety of the main cable construction.

[0039] Meanwhile, the cat-path adaptive adjustment method of the present invention can... While dispersing local stress, it achieves synchronous displacement, ensuring that the operating space of the catwalk and the main cable changes synchronously, ensuring construction stability and minimizing the negative impact caused by uncontrollable external forces in the natural environment. It can meet the construction accuracy requirements of long-span suspension bridges and is particularly suitable for construction environments with limited space at the top of the main tower, enabling efficient utilization of confined spaces.

[0040] Example 2 See Figures 2 to 6 The diagram shows an integrated adaptive cable saddle system provided in this invention, which is used to implement the catwalk adaptive adjustment method in Embodiment 1. Specifically, it includes: a main cable saddle 1, multiple rotating cable saddles 2 and two connecting beams 3. Two connecting beams 3 are horizontally arranged on the rib plate 11 of the main cable saddle 1 along the length direction of the main cable saddle 1, and are symmetrically arranged about the main cable saddle 1. Multiple cable saddles 2 are symmetrically arranged on the connecting beam 3, forming an integrated structure of cable saddle 2-connecting beam 3-main cable saddle 1.

[0041] In this embodiment, the saddle 2 is integrated with the main saddle 1 via the connecting beam 3, thus forming a force transmission path of catwalk load-bearing cable 4-saddle 2-connecting beam 3-main saddle 1 when the catwalk is in use. The symmetrical arrangement of the double connecting beams 3 forms a stable structural system, which changes the load borne by the rib plate 11 of the main saddle 1 from unidirectional bending to axial compression, significantly improving the buckling critical load of the cable saddle system. The design of multiple saddles 2 symmetrically distributed along the connecting beam 3 realizes the anchorage of the catwalk load-bearing cable 4 and avoids the stress concentration effect caused by traditional single-point anchorage.

[0042] This embodiment implements a novel adaptive adjustment mechanism for the catwalk. When the catwalk load-bearing cable 4 is tensioned and fixed on the saddle 2, and the main cable is tensioned and fixed on the main saddle cable, when the catwalk structure experiences displacement and stress changes due to temperature variations or dynamic loads during use, the linkage between the main saddle 1 and the saddle 2 enables synchronous sliding or stress dispersion of the integrated structure through the force transmission path of the catwalk load-bearing cable 4-saddle 2-connecting beam 3-main saddle 1. This allows for real-time compensation and adaptive adjustment of stress and displacement, avoiding the technical problem of rigidly connecting the saddle 2 device with embedded parts on the main tower, which would prevent the main tower from adapting to stress redistribution and displacement deviations caused by changes in construction loads and temperature deformation, thus causing the main tower to bear excessive additional bending moments and stresses during construction and affecting the structural safety and durability of the main tower. Meanwhile, the main cable saddle 1 and the switch cable saddle 2 are integrated into the design of this invention, which enables synchronous displacement of the main cable and the catenary support cable. This effectively controls the relative position between the main cable and the catenary support cable, and always maintains a reasonable construction clearance, thereby ensuring the smooth passage of equipment such as the wire winding machine and the cable tensioning machine, and ensuring the continuity and safety of the main cable construction.

[0043] Optionally, refer to Figures 5 to 6 In this invention, the main cable saddle 1 has multiple ribs 11, and the main cable saddle 1 also includes a base 13 and a saddle body 12; the base 13 is fixedly installed on the main cable tower; the saddle body 12 is fixedly installed on the base 13; multiple ribs 11 are symmetrically arranged on both sides of the saddle body 12, and the ribs 11 on the same side of the saddle body 12 are all arranged in parallel; the lower end of the rib 11 extends to the horizontal through the rib transition area 111 to form a mounting surface 112, which is used to fix and install the connecting beam 3.

[0044] In this embodiment, the mounting surface 112 formed by the horizontal extension of the rib plate 11 provides a full-size welding base for the connecting beam 3. Its large contact area significantly improves the shear bearing capacity of the weld and avoids the stress concentration problem of traditional spot welding under dynamic load. The extended platform structure allows the welding position of the connecting beam 3 to avoid the stress-sensitive area of ​​the main cable saddle 1. The horizontal mounting surface 112 also serves as a construction positioning reference, improving the installation accuracy.

[0045] Optionally, refer to Figure 4 In this invention, the connecting beam 33 is an I-beam, and the bottom surface of the I-beam is fixedly connected to the mounting surface 112; the top surface of the I-beam is used to install the cable saddle 2.

[0046] Optionally, the cable saddle 2 in this invention includes a main body 21 and a clamp 22; the main body 21 is fixedly connected to the top surface of the I-beam by fasteners 23; the clamp 22 is fixedly disposed on the upper side of the main body 21 for fixing the catwalk load-bearing cable 4.

[0047] In this embodiment, the base plate of the main body 21 and the I-beam can be connected by bolts, and multiple anti-loosening mechanisms are set up to maintain the stability of the preload after bearing cyclic loads, thus solving the problem of bolt loosening caused by wind vibration of bridges in mountainous areas; the fixture 22 adopts an independent casting process and uses high wear-resistant alloy materials to improve the service life of key contact surfaces without increasing the overall cost.

[0048] Furthermore, the fastener 23 includes bolts with a diameter of 500 mm, and each body 21 is fastened to the I-beam by at least four bolts; specifically, the fastener 23 includes nuts, bolts, washers and spring washers.

[0049] Optionally, the clamp 22 in this invention is an adjustable clamping mechanism to adapt to load-bearing cables of different diameters.

[0050] Optionally, the length of the I-beam in this invention is consistent with the lateral length of the main cable saddle 1, the width of its lower surface is not greater than the width of the mounting surface 112, and it is welded to the central axis of the mounting surface 112.

[0051] In this embodiment, the constraint that the width of the I-beam is not greater than the width of the mounting surface 112 ensures that the welding heat-affected zone is completely within the load-bearing range of the extension platform, preventing its stress from spreading to the core stress area of ​​the main cable saddle 1; the design that the length is strictly equal to that of the main cable saddle 1 makes the end of the connecting beam 3 and the rib plate 11 form a closed force system, improving the torsional stiffness of the system; the central axis welding criterion eliminates the system bending moment amplification effect caused by small off-center loads.

[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0053] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cat-path adaptive adjustment method, characterized in that, include: S1: The cable saddle (2) is connected to the main cable saddle (1) via the connecting beam (3) to form an integrated adaptive cable saddle system; Step S1 includes: S1.1: Accurately locate the placement position of the connecting beam (3) in the rib transition area (111) of the main cable saddle (1), and fix the connecting beam (3) symmetrically on both sides of the rib of the main cable saddle (1); S1.2: Fix the cable saddle (2) to the connecting beam (3); S1.3: Following the operation of step S1.2, multiple cable saddles (2) are symmetrically arranged on the main cable saddle (1) in the left and right and front and back, forming an integrated adaptive cable saddle system together with the main cable saddle (1); S2: The integrated adaptive cable saddle system is installed on the top of the main cable tower. The load-bearing cable of the catwalk is fixed on the rotating cable saddle (2) of the integrated adaptive cable saddle system to form a force transmission path of catwalk load-bearing cable (4) - rotating cable saddle (2) - connecting beam (3) - main cable saddle (1). S3: When displacement or stress change occurs at any position in the integrated adaptive cable saddle system during the use of the catwalk, the integrated adaptive cable saddle system realizes synchronous displacement or overall adaptive adjustment of the rotating cable saddle (2) and the main cable saddle (1) through the force transmission path of the catwalk load-bearing cable (4) - rotating cable saddle (2) - connecting beam (3) - main cable saddle (1).

2. The catwalk adaptive adjustment method according to claim 1, characterized in that, In step S3, during the use of the catwalk, when the main cable on the main cable saddle (1) and the catwalk load-bearing cable (4) laid on the saddle (2) experience stress changes, the main cable and the catwalk load-bearing cable (4) are simultaneously displaced, and the stress is dispersed through the force transmission path of the catwalk load-bearing cable (4) - saddle (2) - connecting beam (3) - main cable saddle (1).

3. The catwalk adaptive adjustment method according to claim 2, characterized in that, In step S3, during the use of the catwalk, when the main cable saddle (1) or / and the rotating cable saddle (2) undergo displacement changes, the rotating cable saddle (2) and the main cable saddle (1) are moved synchronously through the force transmission path of the catwalk load-bearing cable (4) - rotating cable saddle (2) - connecting beam (3) - main cable saddle (1).

4. An integrated adaptive saddle system for implementing the catwalk adaptive adjustment method of any one of claims 1 to 3, characterized in that, It includes a main cable saddle (1), multiple cable saddles (2) and two connecting beams (3); The two connecting beams (3) are horizontally arranged on the rib plate (11) of the main cable saddle (1) along the length direction of the main cable saddle (1) and are symmetrically arranged about the main cable saddle (1); Multiple cable saddles (2) are symmetrically arranged on the connecting beam (3) to form an integrated structure of cable saddle (2) - connecting beam (3) - main cable saddle (1).

5. The integrated adaptive cable saddle system according to claim 4, characterized in that, The main cable saddle (1) has multiple ribs (11), and the main cable saddle (1) also includes a base (13) and a saddle body (12). The base (13) is fixedly installed on the main cable tower; the saddle body (12) is fixedly installed on the base (13); a plurality of ribs (11) are symmetrically arranged on both sides of the saddle body (12), and the ribs (11) on the same side of the saddle body (12) are all arranged in parallel. The lower end of the rib (11) extends horizontally through the rib transition area to form a mounting surface (112), which is used to fix the connecting beam (3).

6. The integrated adaptive cable saddle system according to claim 5, characterized in that, The connecting beam (3) is an I-beam, and the bottom surface of the I-beam is fixedly connected to the mounting surface (112); The top surface of the I-beam is used to install the cable saddle (2).

7. The integrated adaptive cable saddle system according to claim 6, characterized in that, The cable saddle (2) includes a main body (21) and a clamp (22); The main body (21) is fixedly connected to the top surface of the I-beam by fasteners (23); The clamp (22) is fixedly installed on the upper side of the main body (21) for fixing the catwalk load-bearing cable (4).

8. The integrated adaptive cable saddle system according to claim 7, characterized in that, The clamp (22) is an adjustable clamping mechanism that can adapt to load-bearing cables of different diameters.

9. The integrated adaptive cable saddle system according to claim 6, characterized in that, The length of the I-beam is consistent with the lateral length of the main cable saddle (1), the width of its lower surface is not greater than the width of the mounting surface (112), and it is welded to the central axis of the mounting surface (112).

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