Separated catwalk steel tower end anchoring structure

Abstract

The invention relates to a separated catwalk steel tower end anchoring structure, which belongs to the technical field of bridge construction and comprises an adjusting device and a stabilizing device. The adjusting device is fixed to the catwalk bearing cable and used for adjusting the length of the catwalk bearing cable so as to change the line shape of the catwalk bearing cable. The stabilizing device is installed on a steel bridge tower, the stabilizing device is located at the bottom of the adjusting device and abuts against the adjusting device, and the stabilizing device is used for rotationally supporting the adjusting device; the line shape and length of the catwalk bearing cable are adjusted by arranging the adjusting device, changes of the angle and the total length in the catwalk bearing cable adjusting process are supported through the stabilizing device, stable adjustment of the catwalk bearing cable is achieved, and the safety guarantee effect is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge construction, and in particular relates to a separated catwalk steel tower end anchoring structure. Background Art

[0002] Catwalks need to be set up when the cables of a suspension bridge are erected. The erection line shape of the cables and catwalks of a traditional suspension bridge is the final line shape, with no change in spatial position, and the design and construction are relatively simple. When the cables of a spatial cable suspension bridge are erected, they need to be anchored through steel bridge towers, and the catwalk load-bearing cables are in a naturally drooping state. They need to be stretched out during construction to achieve the final spatial cable state. During the stretching process, the position, angle and relative position relationship of the catwalk load-bearing cables to the catwalk will change.

[0003] During the process of the catwalk being stretched out, changes in the position, rotation angle and relative position relationship of the catwalk load-bearing cables of the space cable suspension bridge with the catwalk will cause corresponding changes in the length and angle of the catwalk, and there is a close correlation between the two; when the catwalk load-bearing cables are stretched out from the natural drooping state to the final space cable state, their horizontal and vertical positions will change, and this position change will directly affect the support point and span of the catwalk, thereby causing changes in the length of the catwalk.

[0004] The catwalk is a platform used for construction. The linear adjustment of the catwalk is crucial to the structural stability of the catwalk's load-bearing cables. The linear adjustment of the catwalk involves the angular rotation of the anchor point and the change in the arc length of the catwalk. Therefore, ensuring the structural stability of the catwalk when adjusting its linearity can ensure the safety of subsequent construction.

[0005] Therefore, there is a need for a separate catwalk steel tower end anchoring structure that can adjust the line shape according to the line shape change of the cable and can ensure the stability and safety of the catwalk structure while adjusting the line shape. Summary of the invention

[0006] In order to solve the above problems existing in the prior art, the present invention provides a separate catwalk steel tower end anchoring structure.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A separate catwalk steel tower end anchoring structure comprises an adjusting device and a stabilizing device; the adjusting device is fixed to the catwalk load-bearing cable, and the adjusting device is used to adjust the length of the catwalk load-bearing cable to change its linear shape; the stabilizing device is installed on the steel bridge tower, the stabilizing device is located at the bottom of the adjusting device and abuts against the adjusting device, and the stabilizing device is used to rotatably support the adjusting device.

[0009] Preferably, the stabilizing device includes a limiting mechanism, a retaining spring, a first support block and a second support block; the first support block is fixedly arranged on the steel bridge tower, the second support block is rotatably connected to one end of the first support block via a rotating shaft, the retaining spring is coaxially connected to the rotating shaft, a clamping portion is respectively arranged on both sides of the end of the retaining spring, the two clamping portions are respectively abutted against the first support block and the second support block, the limiting mechanism is arranged between the first support block and the second support block, the limiting mechanism is limitedly abutted against the adjusting device, and is used to lock the rotation state of the first support block and the second support block.

[0010] Preferably, the adjustment device includes a crossbeam, a vertical pin shaft and a linear adjustment mechanism; the vertical pin shaft is rotatably set on the steel bridge tower, the crossbeam is fixedly connected to the vertical pin shaft, the linear adjustment mechanism is rotatably installed on the crossbeam, and the catwalk load-bearing cable is connected to the linear adjustment mechanism.

[0011] Preferably, there are several catwalk load-bearing cables, and several catwalk load-bearing cable arrays are arranged on the crossbeam.

[0012] Preferably, the vertical pin shaft is provided with an abutment portion, and the abutment portion is located at an end of the vertical pin shaft away from the adjusting device, and the abutment portion abuts against the second supporting block.

[0013] Preferably, the adjustment device further comprises a transverse pin, which is rotatably mounted on one end of the crossbeam away from the vertical pin, and the linear adjustment mechanism is connected to the transverse pin for adjusting the horizontal rotation angle of the catwalk load-bearing cable.

[0014] Preferably, the linear adjustment mechanism includes a temporary anchor bolt, a through-hole jack, an anchor box, an anchor bolt, a rear anchor beam, an adjustment steel bar, and a front anchor beam; the rear anchor beam is fixedly connected to the transverse pin shaft, and the rear anchor beam and the front anchor beam are connected by the adjustment steel bar; the anchor bolt anchors the adjustment steel bar to the rear anchor beam, and the anchor box is arranged on the periphery of the anchor bolt; the adjustment steel bar passes through the through-hole jack and is anchored to the through-hole jack through the temporary anchor bolt.

[0015] Preferably, the limiting mechanism includes a locking tooth, a connecting tooth, a first limiting plate, a second limiting plate, a limiting shaft and a limiting connecting rod; the locking tooth and the rotating shaft are coaxially and fixedly connected, the connecting tooth is installed on the adjusting steel bar, and the connecting tooth and the locking tooth are meshed for adjusting the rotation of the rotating shaft; limiting tooth portions are symmetrically arranged on both sides of the rotating shaft, any of the limiting tooth portions is meshed with the limiting connecting rod, the other end of the limiting connecting rod is connected to the limiting shaft, the limiting shaft is rotatably connected to the first limiting plate and the second limiting plate, the other end of the first limiting plate is fixedly connected to the first support block, and the other end of the second limiting plate is fixedly connected to the second support block.

[0016] Preferably, there are two adjusting steel bars, which are symmetrically arranged on both sides of the transverse pin shaft.

[0017] Preferably, any catwalk load-bearing cable is connected to the adjustment device.

[0018] The beneficial effects of the present invention are:

[0019] 1. The linear shape and length of the catwalk load-bearing cable are adjusted by setting an adjusting device. The changes in the angle and total length of the catwalk load-bearing cable during the adjustment process are supported by the stabilizing device, thereby achieving stable adjustment of the catwalk load-bearing cable 102 and playing a role in safety protection; the second support block can transmit the supporting force of the supporting adjustment device to the steel bridge tower through the first support block, thereby ensuring the supporting stability of the entire stabilizing device, and the stabilizing device can adapt to the position changes of the adjusting device during the adjustment process, thereby enhancing its adaptability and flexibility.

[0020] 2. By setting up transverse pins and vertical pins, the catwalk can rotate laterally and vertically at the anchoring point, so that the catwalk can adapt to the linear adjustment of the cable, and on this basis, a stabilizing device is set to ensure that the vertical pin is supported during the rotation process, thereby ensuring the linear stability of the catwalk during the adjustment process.

[0021] 3. When the length of the catwalk load-bearing cable is changed by adjusting the steel bar, the angle of the catwalk load-bearing cable anchorage will change. In this way, the limiting state of the limiting mechanism is dynamically affected by the adjusting steel bar, but not by the external force on the catwalk. The stability of the entire catwalk structure is enhanced by the connection between the limiting link and the limiting shaft. Under the action of external force, the limiting mechanism can work together as a whole to resist the interference of external force and maintain the stability of the catwalk line. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0023] Figure 1 A schematic diagram of a catwalk anchoring structure provided in one embodiment of the present invention;

[0024] Figure 2 It is a schematic diagram of a top view of the installation structure of a limiting mechanism provided in one embodiment of the present invention;

[0025] Figure 3 It is a schematic diagram of the installation side structure of the limiting mechanism provided in one embodiment of the present invention;

[0026] Figure 4 It is a schematic diagram of the front view of the anchoring structure provided in one embodiment of the present invention;

[0027] Figure 5 for Figure 4 The schematic diagram of the cross-sectional structure at 1-1 in the middle;

[0028] Legend: 101, steel bridge tower; 102, catwalk load-bearing cable; 103, cable; 1, vertical pin; 111, abutment; 2, crossbeam; 3, transverse pin; 4, linear adjustment mechanism; 5, temporary anchor bolt; 6, through-hole jack; 7, anchor box; 8, anchor bolt; 9, rear anchor beam; 10, adjustment steel bar; 11, front anchor beam; 12, stabilizing device; 13, limiting mechanism; 131, locking tooth; 132, connecting tooth; 133, first limiting plate; 134, second limiting plate; 135, limiting shaft; 136, limiting connecting rod; 16, retaining spring; 161, clamping part; 17, first support block; 18, second support block; 19, rotating shaft. DETAILED DESCRIPTION

[0029] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0030] like Figure 1-Figure 5 As shown, a separate catwalk steel tower end anchoring structure includes an adjusting device and a stabilizing device 12; the catwalk load-bearing cable 102 is fixed to the adjusting device, the adjusting device is used to adjust the length and line shape of the catwalk load-bearing cable 102, the stabilizing device 12 is installed on the steel bridge tower 101, the stabilizing device 12 is located at the bottom of the adjusting device and abuts against the adjusting device, and the stabilizing device 12 is used to rotate and support the adjusting device when the line shape of the catwalk load-bearing cable 102 is adjusted;

[0031] The cable 103 of the space cable suspension bridge is in a naturally drooping state when erected, and needs to be stretched during construction to achieve the final space cable state. During the stretching process, the position, angle and relative position relationship of the cable 103 with the catwalk will change. Therefore, the change of the angle and length of the anchoring point must be considered when designing the catwalk. During the stretching process, the cable 103 is stretched toward both ends of the steel tower to achieve the purpose of adjusting the line shape and length.

[0032] Usually, the catwalk is provided to facilitate the construction of the cable 103, so the linear shape of the catwalk should not affect the structure of the cable 103 but should also maintain the linear shape of the cable 103. Therefore, after the catwalk is installed, the linear shape of the catwalk should be adjusted according to the linear shape of the cable 103. The linear adjustment of the catwalk usually involves the change of the angle of the anchoring end and the change of the total length of the catwalk. Therefore, it is necessary to set an adjustment device and a stabilizing device 12 to adapt to the change of the angle and the total length of the catwalk linear adjustment process, improve the adaptability and adjustment ability of the catwalk, and enable the catwalk to have the function of rotating and adjusting its own length.

[0033] The stabilizing device 12 includes a limiting mechanism 13, a clamping spring 16, a first support block 17 and a second support block 18; the first support block 17 is fixedly arranged on the steel bridge tower 101, the second support block 18 is rotatably connected to one end of the first support block 17 through a rotating shaft 19, the clamping spring 16 is coaxially connected to the rotating shaft 19, and a clamping portion 161 is respectively arranged on both sides of the end of the clamping spring 16, and the two clamping portions 161 are respectively abutted against the first support block 17 and the second support block 18, the limiting mechanism 13 is arranged between the first support block 17 and the second support block 18, and the limiting mechanism 13 is limitedly abutted against the adjusting device, and is used to lock the rotation state of the first support block 17 and the second support block 18;

[0034] Because the structural stability of the catwalk is crucial to various subsequent constructions on the catwalk, affecting the safety of construction workers and construction equipment, etc., and the angle change and length change of the catwalk are closely related. When the total length of the catwalk is reduced, the angle between the catwalk and the anchor point becomes larger. When the angle of the catwalk becomes larger and larger, the stability of the entire catwalk will be affected, and the subsequent construction process will also be affected. It is necessary to set a stabilizing device 12 to support the structural stability of the catwalk. The second support block 18 is fixed on the steel bridge tower 101 as the basis of the stabilizing device 12. The second support block 18 is rotatably connected to one end of the first support block 17 through the rotating shaft 19. The second support block 18 rotates relative to the first support block 17 within a certain range to adapt to the position change of the adjusting device during the adjustment process;

[0035] During rotation, the rotation direction and size of the first support block 17 and the second support block 18 are affected by the catwalk load-bearing cable 102. The catwalk load-bearing cable 102 acts on the second support block 18 through the adjusting device, so that the second support block 18 and the first support block 17 rotate around the rotation axis 19. The angle change of the first support block 17 and the second support block 18 located on one side of the rotation axis 19 and abutting against the adjusting device tends to decrease, and the angle change of the other side of the rotation axis 19 tends to increase, that is, the abutting portion is the rear side of the rotation axis 19, the angle of the rear side of the rotation axis 19 becomes smaller, and the angle of the front side of the rotation axis 19 increases. The degree becomes larger, realizing the angle change in the process of adjusting the linear shape of the catwalk weighing rope. Therefore, the first support block 17 and the second support block 18 can play the role of supporting the adjustment device after rotation when the linear shape of the catwalk is adjusted, so as to ensure the stability of the catwalk structure during the rotation of the adjustment device. Moreover, since the first support block 17 is anchored on the steel bridge tower 101, the second support block 18 can transmit the supporting force of the support adjustment device to the steel bridge tower 101 through the first support block 17, thereby ensuring the support stability and reasonable structural setting of the entire stabilizing device 12, and playing a role in ensuring the structural stability of the subsequent catwalk construction;

[0036] The retaining spring 16 is coaxially connected to the rotating shaft 19, and a clamping portion 161 is provided on both sides of its end. The two clamping portions 161 are respectively tightly abutted against the first support block 17 and the second support block 18, and the rotation of the two is achieved by the elastic force of the retaining spring 16, while preventing the first support block 17 and the second support block 18 from generating unexpected rotation; the limiting mechanism 13 is arranged between the first support block 17 and the second support block 18, and is limitedly abutted against the abutting portion 111 of the adjusting device. When the adjusting device completes the linear adjustment, the limiting mechanism 13 will lock the current rotation state of the first support block 17 and the second support block 18 to prevent them from moving or rotating due to the force generated by the construction, thereby ensuring the linear stability of the adjusting device and the catwalk load-bearing cable 102, and avoiding the catwalk being affected by the force generated on the catwalk when workers and equipment are transported to the catwalk and constructed on the catwalk, resulting in the angle rotation, and the linear shape cannot be kept consistent with the linear shape of the cable 103, thereby ensuring the linear stability of the adjusting device and the catwalk load-bearing cable 102.

[0037] Through the coordinated action of the first support block 17, the second support block 18, the retaining spring 16 and the limiting mechanism 13, the stabilizing device 12 provides stable support and locking functions for the adjusting device and the catwalk load-bearing cable 102, thereby enhancing the stability of the overall structure and the construction safety. Since the second support block 18 can rotate within a certain range relative to the first support block 17, the stabilizing device 12 can adapt to the position changes of the adjusting device during the adjustment process, thereby enhancing its adaptability and flexibility.

[0038] In one embodiment, the adjustment device includes a crossbeam 2, a vertical pin shaft 1 and a linear adjustment mechanism 4; the vertical pin shaft 1 is rotatably set on the steel bridge tower 101, the crossbeam 2 is fixedly connected to the vertical pin shaft 1, the linear adjustment mechanism 4 is rotatably installed on the crossbeam 2, and the catwalk load-bearing cable 102 is connected to the linear adjustment mechanism 4; the vertical pin shaft 1, as the core supporting component of the adjustment device, is rotatably set on the steel bridge tower 101, so that the adjustment device has a certain degree of freedom in the vertical direction while maintaining stable support; the crossbeam 2 is fixedly connected to the vertical pin shaft 1, and becomes the installation base of the linear adjustment mechanism 4. The crossbeam 2 not only transmits the supporting force of the vertical pin shaft 1, but also serves as a platform for the rotation of the linear adjustment mechanism 4 to ensure the stability and accuracy of the linear adjustment. The catwalk load-bearing cable 102 is directly connected to the linear adjustment mechanism 4. When the linear adjustment mechanism 4 adjusts the linear shape of the catwalk, the catwalk load-bearing cable 102 will undergo corresponding deformation, thereby realizing linear adjustment.

[0039] In one embodiment, there are a number of catwalk load-bearing cables 102, and a plurality of catwalk load-bearing cables 102 are arranged in an array on the crossbeam 2. The catwalk load-bearing cables 102 are connected to each other through the crossbeam 2 and the linear adjustment mechanism 4 to form a collaborative system. During the use of the catwalk, each catwalk load-bearing cable 102 will automatically adjust the tension distribution according to the actual force conditions to ensure the stability and balance of the overall line. The linear adjustment mechanism 4 can not only accurately adjust a single catwalk load-bearing cable 102, but also adjust multiple catwalks. Under the joint action of the load-bearing cables 102, fine-tuning of the overall linear shape is achieved. By adjusting the tension or position of each catwalk load-bearing cable 102, it can be ensured that the catwalk can maintain the best linear state under different working conditions; when the crossbeam 2 is in the process of expanding the spatial catwalk, a plurality of catwalk load-bearing cables 102 are arranged in an array on the crossbeam 2, which can effectively disperse the total bearing capacity of the catwalk. Each catwalk load-bearing cable 102 bears a part of the weight, thereby reducing the load of a single catwalk load-bearing cable 102 and improving the bearing capacity and safety of the overall structure.

[0040] In one embodiment, the vertical pin shaft 1 is provided with an abutment portion 111, and the abutment portion 111 is located at the end of the vertical pin shaft 1 away from the adjusting device, and the abutment portion 111 abuts against the second support block 18. The principle of the abutment between the abutment portion 111 and the second support block 18 is mainly based on the contact and support principle in mechanics. In this scenario, the vertical pin shaft 1 serves as a key component of connection and support, and the abutment portion 111 thereon is used to form a stable contact relationship with the second support block 18 to ensure the stability and safety of the entire adjusting device and the catwalk load-bearing cable 102 system.

[0041] The abutment portion 111 is arranged at the end of the vertical pin shaft 1 away from the adjusting device, so that the abutment portion 111 can physically form a direct contact surface with the second support block 18. The contact surface is the basis for the interaction between the two and is responsible for transmitting force and maintaining relative position. When the adjusting device performs linear adjustment, the vertical pin shaft 1 as a connecting member will bear the force from the adjusting device and the catwalk load-bearing cable 102. These forces are transmitted to the abutment portion 111 through the vertical pin shaft 1 and further transmitted to the second support block 18.

[0042] Since the abutment portion 111 is in close contact with the second support block 18, the second support block 18 can provide a stable support surface to prevent the vertical pin shaft 1 from moving or tilting when subjected to force; the close contact between the abutment portion 111 and the second support block 18 not only enhances the stability of the vertical pin shaft 1, but also improves the overall stability of the entire adjustment device and the catwalk load-bearing cable 102 system through the force dispersion and transmission effect.

[0043] In one embodiment, the adjusting device also includes a transverse pin 3, which is rotatably installed at one end of the crossbeam 2 away from the vertical pin 1. The linear adjusting mechanism 4 is connected to the transverse pin 3 and is used to adjust the horizontal rotation angle of the catwalk load-bearing cable 102 to meet the steering requirements of the spatial catwalk structure and adapt to the structural characteristics of horizontal rotation. The transverse pin 3 can rotate freely in the horizontal direction, providing an additional degree of freedom for the linear adjusting mechanism 4. The linear adjusting mechanism 4 is connected to the transverse pin 3. By controlling the rotation of the transverse pin 3, the linear adjusting mechanism 4 can drive the catwalk load-bearing cable 102 connected thereto to change the rotation angle in the horizontal direction. Combined with the dual effects of the vertical pin 1 and the transverse pin 3, the adjusting device can not only adjust the tension and position of the catwalk load-bearing cable 102 in the vertical direction, but also adjust its rotation angle in the horizontal direction. This comprehensive adjustment capability makes the adjusting device more flexible and changeable, and can adapt to various complex construction environments and needs.

[0044] In one embodiment, the linear adjustment mechanism 4 includes a temporary anchor bolt 5, a through-core jack 6, an anchor box 7, an anchor bolt 8, a rear anchor beam 9, an adjustment steel bar 10, and a front anchor beam 11; the rear anchor beam 9 is fixedly connected to the transverse pin shaft 3, and the rear anchor beam 9 and the front anchor beam 11 are connected by the adjustment steel bar 10; the anchor bolt 8 anchors the adjustment steel bar 10 to the rear anchor beam 9 to provide a stable support point for the adjustment process, and the anchor box 7 is arranged on the periphery of the anchor bolt 8; the adjustment steel bar 10 passes through the through-core jack 6 and is temporarily anchored The bolt 5 is anchored to the through-hole jack 6, and the through-hole jack 6 is arranged in the adjustment mechanism. The adjusting steel bar 10 passes through the through-hole jack 6, which can realize the expansion and contraction control of the adjusting steel bar 10, and then adjust the relative position between the front anchor beam 11 and the rear anchor beam 9. During the adjustment process, the temporary anchor bolt 5 is used to anchor the through-hole jack 6 to ensure that it will not move due to force during the adjustment process. By fine-tuning the tightness of the temporary anchor bolt 5, the linear shape of the catwalk can be further fine-tuned to meet higher requirements.

[0045] In one embodiment, the limiting mechanism 13 includes a locking tooth 131, a connecting tooth 132, a first limiting plate 133, a second limiting plate 134, a limiting shaft 135 and a limiting connecting rod 136; the locking tooth 131 and the rotating shaft 19 are coaxially fixedly connected, the connecting tooth 132 is installed on the adjusting steel bar 10, the connecting tooth 132 and the locking tooth 131 are meshed, the connecting tooth 132 used to adjust the rotation of the rotating shaft 19 is a straight tooth, and the locking tooth 131 is a circular structure, that is, there is a tooth structure on the circumference that can mesh with the straight tooth, and the rotation of the rotating shaft 19 is achieved by the meshing of the straight tooth and the circular tooth.

[0046] Limiting teeth are symmetrically arranged on both sides of the rotating shaft 19, and any limiting tooth is meshed with the limiting link 136. The other end of the limiting link 136 is connected to the limiting shaft 135, and the limiting shaft 135 is rotatably connected to the first limiting plate 133 and the second limiting plate 134. The other end of the first limiting plate 133 is fixedly connected to the first support block 17, and the other end of the second limiting plate 134 is fixedly connected to the second support block 18. When it is necessary to adjust the rotation of the rotating shaft 19, the linear shape of the catwalk load-bearing cable 102 is adjusted according to the cable 103, and the adjusting steel bar 10 is moved by the through-core jack 6. By moving the adjusting steel bar 10, the length of the catwalk load-bearing cable 102 is shortened or increased, and the movement of the adjusting steel bar 10 drives the connecting teeth 132 installed thereon to move together.

[0047] Since the connecting teeth 132 and the locking teeth 131 are in meshing state, the linear movement of the connecting teeth 132 is converted into the circular motion of the locking teeth 131 through the meshing point, thereby driving the rotating shaft 19 fixed coaxially therewith to rotate. When the rotating shaft 19 rotates, due to the meshing relationship with the limit link 136, the rotational motion generated by the rotating shaft 19 can be converted into the linear motion of the limit link 136. When the limit link 136 moves linearly, it will drive the limit shaft 135 to move. Driven by the limit shaft 135, the first limit plate 133 and the second limit plate 134 rotate. At this time, the distance between the first support block 17 and the second support block 18 connected to one end of the first limit plate 133 and the second limit plate 134 changes, that is, when the limit shaft 135 moves in the direction close to the rotating shaft 19, the distance between the first support block 17 and the second support block 18 will become smaller.

[0048] Therefore, when the length of the catwalk load-bearing cable 102 adjusted by the adjusting steel bar 10 changes, the angle of the anchoring point of the catwalk load-bearing cable 102 will change. In this way, the limiting state of the limiting mechanism 13 is dynamically affected by the adjusting steel bar 10 but not by the external force on the catwalk. The stability of the entire catwalk structure is enhanced by the connection between the limiting link 136 and the limiting shaft 135. Under the action of external force, the limiting mechanism 13 can work together as a whole to resist the interference of external force and maintain the stability of the catwalk line.

[0049] In one embodiment, there are two adjusting steel bars 10, which are symmetrically arranged on both sides of the transverse pin shaft 3, ensuring a balanced distribution of force during the adjustment process. When adjusting the linear shape of the catwalk load-bearing cable 102, the two adjusting steel bars 10 will be subjected to the same or similar force at the same time, thereby avoiding distortion or deviation caused by uneven force on one side. The two adjusting steel bars 10 are connected to the rear anchor beam 9 and the front anchor beam 11 through devices such as the through-hole jack 6 to form an overall adjustment system. During the adjustment process, the two adjusting steel bars 10 will work together to jointly adjust the linear shape of the catwalk load-bearing cable 102. This collaborative adjustment method improves the accuracy and stability of the adjustment. The presence of the two adjusting steel bars 10 increases the overall structural strength of the adjustment mechanism. When subjected to external loads, the two adjusting steel bars 10 can share the force together, thereby improving the bearing capacity and stability of the entire adjustment mechanism.

[0050] In one embodiment, any catwalk load-bearing cable 102 is connected to an adjusting device, and each catwalk load-bearing cable 102 is equipped with an independent adjusting device, so that the adjustment process is more precise and controllable. Construction personnel can make adjustments according to the specific conditions of each catwalk load-bearing cable 102 to ensure that the linear shape of the entire catwalk system meets the design requirements. Since each catwalk load-bearing cable 102 can be adjusted independently, they can be operated in parallel to reduce construction time.

[0051] Working principle:

[0052] The linear adjustment mechanism 4 is connected to the transverse pin shaft 3 and is used to adjust the horizontal rotation angle of the catwalk load-bearing cable 102; that is, when the linear adjustment mechanism 4 rotates, it can drive the catwalk load-bearing cable 102 connected thereto to change the rotation angle in the horizontal direction;

[0053] The adjusting steel bar 10 passes through the through-hole jack 6, so as to realize the expansion and contraction control of the adjusting steel bar 10, and then adjust the relative position between the front anchor beam 11 and the rear anchor beam 9;

[0054] That is, adjusting the length of the catwalk load-bearing cable 102 by adjusting the steel bar 10 will cause the angle of the catwalk load-bearing cable 102 anchoring point to change. When the total length of the catwalk load-bearing cable 102 is reduced, the angle between the catwalk load-bearing cable 102 and the anchoring point becomes larger. When the angle of the catwalk load-bearing cable 102 becomes larger, the stability of the entire catwalk load-bearing cable 102 will be affected.

[0055] Therefore, the stabilizing device 12 is provided to adapt to the catwalk load-bearing cable 102. When the length thereof is adjusted and the angle between the catwalk load-bearing cable 102 and the anchor point becomes larger, the catwalk load-bearing cable 102 drives the adjusting device to rotate around the anchor point. During the rotation, the adjusting device abuts against the second support block 18, so that the second support block 18 and the first support block 17 rotate around the rotating shaft 19. The angle change of the first support block 17 and the second support block 18 located on one side of the rotating shaft 19 and abutting against the adjusting device tends to decrease, while the angle change of the part located on the other side of the rotating shaft 19 tends to increase, that is, the abutting part is the rear side of the rotating shaft 19, the angle of the rear side of the rotating shaft 19 becomes smaller, and the angle of the front side of the rotating shaft 19 becomes larger.

[0056] The clamping spring 16 is coaxially connected to the rotating shaft 19, and a clamping portion 161 is provided on both sides of the end thereof. The two clamping portions 161 are tightly abutted against the first supporting block 17 and the second supporting block 18 respectively, and the rotation of the two is achieved by the elastic force of the clamping spring 16;

[0057] An adjusting device is provided to adjust the linear shape and length of the catwalk load-bearing cable 102. The changes in the angle and total length of the catwalk load-bearing cable 102 during the adjustment process are supported by the stabilizing device 12, thereby solving the problem that the rotation angle of the catwalk load-bearing cable 102 will also change when the linear shape is adjusted, so as to improve the adaptability and adjustment ability of the catwalk load-bearing cable 102, so that the catwalk load-bearing cable 102 can adjust its own length while abutting against the stabilizing device 12 through rotation, thereby realizing the stable adjustment of the catwalk load-bearing cable 102 and playing a role in safety protection.

[0058] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A separate catwalk steel tower end anchoring structure, characterized in that: It includes an adjusting device and a stabilizing device; the adjusting device is fixed to the catwalk load-bearing cable, and the adjusting device is used to adjust the length of the catwalk load-bearing cable to change its linear shape; The stabilizing device is installed on the steel bridge tower, the stabilizing device is located at the bottom of the adjusting device and abuts against the adjusting device, and the stabilizing device is used to rotatably support the adjusting device.

2. The separated catwalk steel tower end anchoring structure according to claim 1 is characterized in that: The stabilizing device includes a limiting mechanism, a retaining spring, a first support block and a second support block; the first support block is fixedly arranged on the steel bridge tower, the second support block is rotatably connected to one end of the first support block via a rotating shaft, the retaining spring is coaxially connected to the rotating shaft, a clamping portion is respectively arranged on both sides of the end of the retaining spring, the two clamping portions are respectively abutted against the first support block and the second support block, the limiting mechanism is arranged between the first support block and the second support block, the limiting mechanism is limitedly abutted against the adjusting device, and is used to lock the rotation state of the first support block and the second support block.

3. The steel tower end anchoring structure of a separated catwalk according to claim 2 is characterized in that: The adjustment device includes a crossbeam, a vertical pin shaft and a linear adjustment mechanism; the vertical pin shaft is rotatably arranged on a steel bridge tower, the crossbeam is fixedly connected to the vertical pin shaft, the linear adjustment mechanism is rotatably installed on the crossbeam, and the catwalk load-bearing cable is connected to the linear adjustment mechanism.

4. The separated catwalk steel tower end anchoring structure according to claim 3 is characterized in that: There are several catwalk load-bearing cables, and several catwalk load-bearing cable arrays are arranged on the crossbeam.

5. The separated catwalk steel tower end anchoring structure according to claim 4 is characterized in that: The vertical pin shaft is provided with an abutment portion, and the abutment portion is located at an end of the vertical pin shaft away from the adjusting device, and the abutment portion abuts against the second supporting block.

6. The separated catwalk steel tower end anchoring structure according to claim 5, characterized in that: The adjustment device also includes a transverse pin, which is rotatably mounted on one end of the beam away from the vertical pin. The linear adjustment mechanism is connected to the transverse pin and is used to adjust the horizontal rotation angle of the catwalk load-bearing cable.

7. The separated catwalk steel tower end anchoring structure according to claim 6 is characterized in that: The linear adjustment mechanism includes a temporary anchor bolt, a through-hole jack, an anchor box, an anchor bolt, a rear anchor beam, an adjustment steel bar, and a front anchor beam; the rear anchor beam is fixedly connected to the transverse pin shaft, and the rear anchor beam and the front anchor beam are connected by the adjustment steel bar; the anchor bolt anchors the adjustment steel bar to the rear anchor beam, and the anchor box is arranged on the periphery of the anchor bolt; the adjustment steel bar passes through the through-hole jack and is anchored to the through-hole jack through the temporary anchor bolt.

8. The separate catwalk steel tower end anchoring structure according to claim 7, characterized in that: The limiting mechanism includes a locking tooth, a connecting tooth, a first limiting plate, a second limiting plate, a limiting shaft and a limiting connecting rod; the locking tooth and the rotating shaft are coaxially and fixedly connected, the connecting tooth is installed on the adjusting steel bar, and the connecting tooth and the locking tooth are meshed for adjusting the rotation of the rotating shaft; limiting tooth portions are symmetrically arranged on both sides of the rotating shaft, any of the limiting tooth portions is meshed with the limiting connecting rod, the other end of the limiting connecting rod is connected to the limiting shaft, the limiting shaft is rotatably connected to the first limiting plate and the second limiting plate, the other end of the first limiting plate is fixedly connected to the first support block, and the other end of the second limiting plate is fixedly connected to the second support block.

9. The steel tower end anchoring structure of a separated catwalk according to claim 8, characterized in that: There are two adjusting steel bars, which are symmetrically arranged on both sides of the transverse pin shaft.

10. The separated catwalk steel tower end anchoring structure according to claim 1, characterized in that: Any catwalk load-bearing cable is connected to the adjusting device.

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