CN220352624U

CN220352624U - Catwalk system

Info

Publication number: CN220352624U
Application number: CN202321860741.8U
Authority: CN
Inventors: 帅勇; 王安会; 张杨; 董逢春; 卢豪; 岳超; 薛佳丽; 李波; 张波; 赵宁; 陈奇; 节贺
Original assignee: China Tiesiju Civil Engineering Group Co Ltd CTCE Group; First Engineering Co Ltd of CTCE Group
Current assignee: China Tiesiju Civil Engineering Group Co Ltd CTCE Group; First Engineering Co Ltd of CTCE Group
Priority date: 2023-07-14
Filing date: 2023-07-14
Publication date: 2024-01-16
Anticipated expiration: 2033-07-14

Abstract

The utility model provides a catwalk system, which comprises catwalks respectively arranged below an upstream main cable and a downstream main cable, wherein the catwalk comprises a plurality of parallel catwalk bearing ropes between a main tower and an anchorage, a transverse channel is arranged on the catwalk bearing ropes between the upstream catwalk and the downstream catwalk, and comprises a truss, a channel walking surface rotatably connected to one side of the long side of the truss, and an angle modulation assembly fixed on the truss and the top of which supports the channel walking surface; the two ends of the truss are respectively fixed on catwalk bearing ropes at the upstream side and the downstream side, the angle adjusting assembly comprises fixing parts fixed on the truss at intervals and adjusting parts detachably fixed on the fixing parts, and the top ends of the adjusting parts are propped against the lower surface of the channel running surface; the inclination angle of the channel walking surface can be manually adjusted according to the inclination angle of the transverse channel after the transverse channel is installed, and the transverse channel walking surface can be adjusted to be in a substantially horizontal state, so that personnel can pass safely.

Description

Catwalk system

Technical Field

The utility model belongs to the technical field of suspension bridge catwalk, and particularly relates to a catwalk system.

Background

Catwalks are temporary structures commonly used in bridge construction for hanging baskets, material handling and the like. The suspension bridge is suitable for a large-span bridge structure, and after the cable tower and the anchorage are constructed, the clamping frame of the catwalk is firstly carried out. The catwalk is composed of several parallel bearing steel ropes and beams suspended between the tower and the anchorage, and galvanized steel mesh surface layers, anti-skid wood strips, railing angle steel posts, railing steel ropes and the like are paved on the bearing steel ropes. Under the conditions of dead weight and large span of weighing steel ropes, handrail steel ropes, net surfaces and the like, the catwalk is easy to swing and undulate under the condition of strong wind, and the passing safety and passing efficiency of constructors are affected. Therefore, a plurality of rigid transverse channels are also arranged between the two catwalk, and the transverse channels not only can facilitate the passing of people between the two catwalk, but also can improve the wind resistance of the catwalk and prevent the catwalk from swinging and rolling.

However, when the catwalk or the side span of the single-tower single-span suspension bridge is used, the catwalk is inclined, so that the walking surface after the transverse channel is installed is inclined, and when the inclination angle is overlarge, the passing safety of personnel is affected.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a catwalk system, and the channel walking surface can be adjusted to be horizontal according to the inclination degree of a catwalk bearing rope by arranging the channel walking surface which can rotate relative to the upper surface of a truss, so that the walking safety of personnel is ensured.

In order to achieve the above object, the present utility model provides the following technical solutions:

the catwalk system comprises catwalks respectively arranged below an upstream main cable and a downstream main cable, wherein the catwalk comprises a plurality of catwalk bearing ropes which are parallel between a main tower and an anchor, a transverse channel is arranged on the catwalk bearing ropes between the upstream catwalk and the downstream catwalk, and the transverse channel comprises a truss, a channel walking surface rotationally connected to one side of the long side of the truss, and an angle modulation assembly which is fixed on the truss and the top of which supports the channel walking surface;

the two ends of the truss are respectively fixed on catwalk bearing ropes at the upstream side and the downstream side, the angle adjusting assembly comprises fixing parts fixed on the truss at intervals and adjusting parts detachably fixed on the fixing parts, and the top ends of the adjusting parts are propped against the lower surface of the channel running surface.

Further, the number of the main towers is one, the catwalk is arranged at 1.5m below the main cable, the main span of the catwalk is 3 times the length of the side span, the catwalk main span is provided with 3 transverse channels, and the side span of the catwalk is provided with 1 transverse channel.

Further, the main spans of the catwalk are divided into 4 unit sections and 2 unit sections by taking the arrangement positions of the transverse channels as the basis of paving and segmentation of the surface layers, the main spans of the catwalk are sequentially a fourth network section, a third network section, a second network section and a first network section according to the descending order of the heights, and the side spans of the catwalk are sequentially a fourth network section and a third network section according to the descending order of the heights; the transverse channel is arranged on the fourth network surface section of the main span, the third network surface section, the second network surface section and the fourth network surface section of the side span.

Further, the catwalk system further comprises a portal bearing rope with two ends fixed on the anchorage and a catwalk portal arranged on the portal bearing rope, wherein the catwalk portal is arranged every 50 m; 3 catwalk large cross beams are arranged in the range of two adjacent catwalk door frames at intervals of 12.5m, and meanwhile handrail upright posts are arranged; two small catwalk crossbeams are arranged between the two big crossbeams according to the interval of 4.25+4+4.25m.

Further, the bottom of the catwalk door frame in the first net section of the catwalk main span without the transverse channel and the third net section of the catwalk side span is fixed with a catwalk door frame lower cross beam used as a counterweight of the transverse channel.

Further, the channel walking surface comprises a plurality of support plates with one ends hinged to the long sides of the trusses, support ribs fixed on the support plates along the length direction of the trusses, and channel steel wire meshes fixed on the support ribs.

Further, the fixing component comprises a plurality of large nuts which are arranged corresponding to the supporting plate, the large nuts are fixed at the top of the truss, the adjusting component is a bolt which is in threaded fit with the large nuts, and the top of the bolt is abutted to the lower surface of the supporting plate.

Further, the fixing component comprises a plurality of slots which are arranged corresponding to the supporting plate, the slots are fixed at the top of the truss, the adjusting component is an inserting block which is in inserting fit with the slots, and the top of the inserting block is abutted to the lower surface of the supporting plate.

Further, a plate hole is formed in one side, away from the hinged end, of the supporting plate, a rope is arranged in the plate hole in a penetrating mode, one end of the rope is tied on the truss, and the supporting plate is pressed on the top end of the adjusting part.

Further, each of the fixing members is provided along a width direction of the truss, and each of the fixing members is provided with more than 2 adjustment members.

The beneficial effects of the utility model are as follows:

according to the utility model, the channel walking surface capable of rotating relative to the truss surface is arranged, so that the inclination angle of the channel walking surface can be manually adjusted according to the inclination angle of the transverse channel after installation, and the channel walking surface can be adjusted to be in a substantially horizontal state, so that people can walk on the channel walking surface which is close to the horizontal in the transverse channel, stable walking of the people is facilitated, and safe passing of the people is facilitated.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. Wherein:

fig. 1 is a schematic diagram of a front view structure according to an embodiment of the present utility model.

Fig. 2 is a schematic top view of an embodiment of the present utility model.

Fig. 3 is a schematic view of the installation of the armrest pillar according to an embodiment of the present utility model.

FIG. 4 is a schematic view of an installation of an anti-skid wood strip according to an embodiment of the present utility model.

Fig. 5 is a schematic view of the structure of the angle adjusting assembly according to one embodiment of the present utility model.

Fig. 6 is a schematic view of a recliner assembly according to another embodiment of the present utility model.

Fig. 7 is a schematic structural diagram of a walking surface of a channel according to an embodiment of the present utility model.

Fig. 8 is a catwalk segment schematic of an embodiment of the present utility model.

Fig. 9 is a schematic structural view of an anchorage at one end in an embodiment of the present utility model.

Fig. 10 is a schematic structural view of an anchorage at the other end of the embodiment of the present utility model.

FIG. 11 is a schematic view of a deflection yoke according to an embodiment of the present utility model.

In the figure, 1-anchorage, 2-main tower, 3-portal bearing rope, 4-catwalk portal, 5-catwalk bearing rope, 6-transverse channel, 7-main rope, 8-handrail upright, 9-handrail rope, 10-protection rope, 11-catwalk big beam, 12-catwalk small beam, 13-antiskid batten, 14-truss, 15-fixing part, 16-bolt, 17-supporting plate, 18-supporting rib, 19-rope, and the like,

The cable laying device comprises a 20-plate hole, a 21-channel steel wire mesh, a 22-insert block, a 23-cable rotating saddle, a 24-deflection steel frame, a 25-cable scattering saddle pier, a 26-anchorage portal frame, a 27-lug plate, a 28-first embedded part and a 29-second embedded part.

Detailed Description

The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.

In the description of the present utility model, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. refer to the orientation or positional relationship based on that shown in the drawings, merely for convenience of description of the present utility model and do not require that the present utility model must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The terms "coupled" and "connected" as used herein are to be construed broadly and may be, for example, fixedly coupled or detachably coupled; either directly or indirectly through intermediate components, the specific meaning of the terms being understood by those of ordinary skill in the art as the case may be.

The utility model will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

As shown in fig. 1 to 7, the catwalk system comprises catwalks respectively arranged below an upstream main cable 7 and a downstream main cable 7, wherein the catwalk comprises a plurality of catwalk bearing ropes 5 and portal bearing ropes 3 which are parallel between a main tower 2 and an anchor 1, and a transverse channel 6 is arranged on the catwalk bearing ropes 5 between the upstream catwalk and the downstream catwalk; the transverse channel 6 comprises a truss 14, a channel walking surface rotatably connected to one side of the long side of the truss 14, and an angle modulation assembly fixed on the truss 14 and the top end of which supports the channel walking surface; the two ends of the truss 14 are respectively fixed on the catwalk bearing ropes 5 at the upstream side and the downstream side, the angle adjusting assembly comprises fixing parts 15 fixed on the truss 14 at intervals and adjusting parts detachably fixed on the fixing parts 15, and the top ends of the adjusting parts are propped against the lower surface of the channel running surface; the adjustment of the angle of the channel walking surface can be preset according to a design drawing or can be adjusted on site after the transverse channel 6 is installed on the catwalk bearing cable 5;

the truss 14 comprises rope connecting joints at two ends and a standard joint between the two rope connecting joints, wherein the rope connecting joints are provided with overpass fixing holes for fixing the truss 14 on the catwalk bearing rope 5, and the truss can be fixed with the catwalk bearing rope 5 through U-shaped bolts 16; because all trusses 14 are of the same structure, no errors are made during production and construction; the channel walking surface covers other parts of the transverse channel 6 except the two catwalks, so that the channel walking surface obliquely arranged relative to the truss 14 does not influence the walking of the personnel on the catwalk net surface; because the channel running surface can rotate relative to the truss 14, the angle of the channel running surface can be adjusted through the angle adjusting assembly when the channel running surface is installed, so that the angle of the channel running surface is approximately horizontal, the angle of the channel running surface can be changed due to wind blowing, but compared with the situation that the inclination angle of the catwalk bearing cable 5 is obviously reduced, people can walk on the channel running surface more easily, and the safety of walking of people in the transverse channel 6 is guaranteed.

As shown in fig. 1 to 7, the number of the main towers 2 is one, the catwalk is arranged at 1.5m below the main cable 7, the main span of the catwalk is 3 times the length of the side span, the main span of the catwalk is provided with 3 transverse channels 6, and the side span of the catwalk is provided with 1 transverse channel 6.

As shown in fig. 1 to 8, the main catwalk span is divided into 4 unit sections, 140+/-5 m is a section, the side span is divided into 2 unit sections, and 92+/-5 m is a section by taking the arrangement position of the transverse channel 6 as the basis of paving and segmenting the surface layer; the main span of the catwalk is sequentially a fourth network surface section, a third network surface section, a second network surface section and a first network surface section according to the descending order of the height, and the side span of the catwalk is sequentially a fourth network surface section and a third network surface section according to the descending order of the height; the transverse channel 6 is arranged on a fourth net surface section of the main span, a third net surface section, a second net surface section and a fourth net surface section of the side span, and a unit section without the transverse channel 6 adopts a catwalk door frame lower cross beam as a counterweight beam;

when paving the catwalk surface layer, paving the main catwalk surface layer, and paving the side catwalk surface layer when the main catwalk surface layer is erected to the corresponding position; when the method is used for paving, the first net surface section, the second net surface section, the third net surface section and the fourth net surface section are paved in sequence, and the paving progress difference is controlled within 20 m. After the catwalk bearing rope 5 is erected and before the catwalk net surface is paved, the transverse channel 6 is connected with the catwalk bearing rope 5 through the horseshoe shackle, so that the catwalk bearing rope can freely slide, the main tower 2 hoist is used for paying out the working rope, the working rope is connected with the transverse channel 6, the lower part of the transverse channel 6 is arranged at a preset installation position, then the catwalk big cross beam 11, the catwalk small cross beam 12, the catwalk door frame 4, the catwalk net surface and the lower part of the bottom part of the catwalk door frame 4 of the house transverse channel 6 are installed, the lower cross beam of the catwalk door frame is used as a counterweight beam of the transverse channel 6, and the windproof performance of the catwalk and the overall stability of the catwalk are improved.

As shown in fig. 1 to 7, the catwalk system further comprises catwalk door frames 4 arranged on the portal load-bearing cable 3, wherein the catwalk door frames 4 are arranged every 50 m; 3 catwalk large cross beams 11 are arranged in the range of two adjacent catwalk door frames 4 at intervals of 12.5m, and meanwhile handrail upright posts 8 are arranged; two catwalk small cross beams 12 are arranged between the two large cross beams according to the intervals of 4.25m, 4m and 4.25m, the length of catwalk net piece unit sections is 2m, 3 anti-skid wood strips 13 are bound on each catwalk net piece, the intervals are 250mm, 500mm and 250mm in sequence, two adjacent catwalk net surfaces are overlapped by 50mm, and the catwalk net surfaces are firmly bound by binding wires; the catwalk disclosed by the utility model is consistent with the existing catwalk, the catwalk is further provided with a protective rope 10, a handrail rope 9, a handrail upright post 8 and a side net, two ends of the protective rope 10 and the handrail rope 9 are fixed on the top of an anchorage 1 or a main tower 2, the handrail upright post 8 is arranged on a catwalk big beam 11, the protective rope 10 and the handrail rope 9 are fixed on the handrail upright post 8 in a mode of manually tightening a U-shaped bolt 16, and the side net is fixed on the handrail rope in a binding manner.

As shown in fig. 1 to 7, the walking surface of the channel comprises a plurality of support plates 17 with one ends hinged on the long sides of the truss 14, support ribs 18 fixed on the support plates 17 along the length direction of the truss 14 and channel steel wire meshes 21 fixed on the support ribs 18, wherein the support ribs 18 can be steel bars or steel wires fixed on the support plates 17 in a tightening manner, the support ribs 18 connect two adjacent support plates 17 to enable all the support plates 17 to rotate simultaneously, and as a support of the channel steel wire meshes 21, personnel walk on the steel wire meshes; similar to the existing transverse channel 6, the two long sides of the truss 14 are also provided with guardrail structures.

As shown in fig. 5 to 7, a plate hole 20 is formed in a side, away from the hinged end, of the supporting plate 17, a rope 19 is threaded in the plate hole 20, one end of the rope 19 is tied on the truss 14, and after the angle of the channel running surface is adjusted, the supporting plate 17 is fastened by the rope 19, so that the supporting plate 17 is pressed on the top end of the adjusting component, and the supporting plate 17 cannot leave the adjusting component.

As shown in fig. 5 to 7, each fixing member 15 is disposed along the width direction of the truss 14, and each fixing member 15 is provided with more than 2 adjusting members, which increase the supporting points of the supporting plate 17, so that the supporting points of the supporting plate 17 are firmly supported, and meanwhile, the contact area of the supporting plate 17 is increased, so that the supporting plate 17 is not easy to deform.

In one embodiment, as shown in fig. 5, the fixing member 15 includes a plurality of large nuts corresponding to the support plates 17, the truss 14 is provided with an auxiliary plate disposed along a width direction thereof, the auxiliary plate is provided with an auxiliary hole, and the large nuts are welded and fixed on the auxiliary plate corresponding to the auxiliary hole; the adjusting component is a bolt 16 in threaded fit with the large nut, the top of the bolt 16 is abutted against the lower surface of the supporting plate 17, a buffer head can be arranged at the top end of the bolt 16, and the buffer head is slightly sprung, so that the bolt has a certain buffer distance, the operation precision of the bolt 16 in screwing can be reduced, and the bolt 16 is easy to install; the extension length of the head of the bolt 16 can be adjusted by screwing the bolt 16, the angle of the supporting plate 17 is adjusted, the extension length of the head of the bolt 16 can be calculated according to a design drawing, and only the installation is needed to be finely adjusted on site.

In one embodiment, as shown in fig. 6, the fixing member 15 includes a plurality of slots corresponding to the supporting plates 17, the slots being arranged side by side on a board, and the board being fixed to the truss 14 corresponding to the supporting plates 17; the adjusting component is an insert block 22 which is in insertion fit with the slot, the top of the insert block 22 is abutted against the lower surface of the supporting plate 17, the angle of the supporting plate 17 is adjusted by selecting insert blocks 22 with different heights or adjusting the installation positions of the insert blocks 22, and the height and the installation positions of the insert blocks 22 can be calculated according to a design drawing, and only the installation is needed to be finely adjusted on site.

The catwalk is used as a suspension cable structure, the constant load and the live load of the catwalk are all converted into the tension of the catwalk load-bearing cable 5, and the tension is transmitted to the cable tower, the anchorage 1 and other structures by the anchoring system, so that the reliability of the anchoring system plays an important role in the use safety of the catwalk. In order to enable the catwalk to adapt to the linear change of the main cable 7 in the construction process, normal operation of constructors and mechanical equipment is guaranteed, and anchoring and adjusting devices of the catwalk bearing cable 5 are designed at the two ends of the tower top and the anchorage 1 according to the stress requirement of the catwalk. In this embodiment, the catwalk bearing cable 5 and the portal bearing cable 3 are anchored in the front anchor room concrete of the two-bank anchorage 1 through the first embedded part 28 and the second embedded part 29 respectively, and the handrail cable is anchored on the upright post lug plates 27 of the main tower portal and the anchorage portal 26. The catwalk bearing cable 5 and the portal bearing cable 3 are of a two-span continuous structure, as shown in fig. 9, one end of the catwalk bearing cable 5 is respectively anchored on the loose cable saddle buttress 25 and the front anchor surface of the anchor body, as shown in fig. 10, in the embodiment, the main cable 7 is a rotary cable, and the other end of the catwalk bearing cable 5 is anchored on the small mileage side of the annular overhaul channel.

In order to make the catwalk line shape parallel to the main cable 7 line shape and solve the conflict with the main cable saddle, a cable turning saddle 23 is arranged at the top of the tower, and a deflection steel frame 24 is arranged near the top of the tower to meet the requirement of the bearing cable passing through the top of the tower. Specifically, as shown in fig. 11, a deflection steel frame 24 is arranged in front of a cable rotating saddle 23, H-shaped steel is adopted as a stress member, a steel plate clamp is used for fixing a bearing cable, and the downward pulling force is transmitted to a tower body embedded part through a 60t pulley block; the catwalk tower top cable-turning saddle 23 saddle head adopts cast steel material, the bottom adopts steel plate welded box-shaped structure, and the cast rope groove is provided with a pressing plate to overcome the horizontal force difference in erection and use. When the catwalk is erected, firstly, the catwalk bearing rope 5 is erected by adopting a sliding hook method, the catwalk surface net, the transverse channel 6, the catwalk large cross beam 11, the catwalk small cross beam 12, the catwalk door frame 4 and the like are installed by adopting a sliding method by utilizing the mutual cooperation of all tower top winches; and then the deflection steel frame 24 is installed, then the transverse channel 6, the catwalk net surface, the handrail rope, the catwalk door frame 4 and the like are sequentially installed, finally catwalk system adjustment and accessory installation are performed, and when the catwalk is installed, the deflection and torsion of the tower top are strictly controlled within the design allowable range according to the upstream, downstream, south and north synchronous and symmetrical installation principle.

It is to be understood that the above description is exemplary only and that the embodiments of the present application are not limited thereto. The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The catwalk system comprises catwalks respectively arranged below an upstream main cable (7) and a downstream main cable (7), wherein the catwalk comprises a plurality of catwalk bearing ropes (5) which are parallel between a main tower (2) and an anchorage (1), and a transverse channel (6) is arranged on the catwalk bearing ropes (5) between the upstream catwalk and the downstream catwalk, and the catwalk system is characterized in that the transverse channel (6) comprises a truss (14), a channel walking surface rotationally connected to one side of the long side of the truss (14), and an angle modulation assembly which is fixed on the truss (14) and the top end of which supports the channel walking surface;

the two ends of the truss (14) are respectively fixed on catwalk bearing ropes (5) at the upstream side and the downstream side, the angle adjusting assembly comprises fixing parts (15) fixed on the truss (14) at intervals and adjusting parts detachably fixed on the fixing parts (15), and the top ends of the adjusting parts are propped against the lower surface of the channel running surface.

2. The catwalk system according to claim 1, wherein: the number of the main towers (2) is one, the catwalk is arranged at the position 1.5m below the main cable (7), the main span of the catwalk is 3 times the length of the side span, the catwalk main span is provided with 3 transverse channels (6), and the side span of the catwalk is provided with 1 transverse channel (6).

3. The catwalk system according to claim 2, wherein: the method comprises the steps that a main span of a catwalk is divided into 4 unit sections by taking the arrangement position of a transverse channel (6) as a basis for paving and segmenting a surface layer, the side span of the catwalk is divided into 2 unit sections, the main span of the catwalk sequentially comprises a fourth net surface section, a third net surface section, a second net surface section and a first net surface section according to the descending order of the height, and the side span of the catwalk sequentially comprises a fourth net surface section and a third net surface section according to the descending order of the height; the transverse channel (6) is arranged on the fourth network surface section of the main span, the third network surface section, the second network surface section and the fourth network surface section of the side span.

4. The catwalk system according to claim 3, wherein: the catwalk system further comprises a portal bearing rope (3) with two ends fixed on the anchorage (1) and a catwalk portal (4) arranged on the portal bearing rope (3), wherein the catwalk portal (4) is arranged every 50 m; 3 catwalk big cross beams (11) are arranged in the range of two adjacent catwalk portal frames (4) at intervals of 12.5m, and meanwhile handrail upright posts (8) are arranged; two catwalk small cross beams (12) are arranged between the two large cross beams.

5. The catwalk system according to claim 4, wherein: the bottom of a catwalk portal (4) in a first net surface section of a catwalk main span without a transverse channel (6) and a third net surface section of a catwalk side span is fixedly provided with a catwalk portal lower beam serving as a counterweight of the transverse channel (6).

6. The catwalk system according to claim 1, wherein: the channel walking surface comprises a plurality of supporting plates (17) with one ends hinged to the long sides of the trusses (14), supporting ribs (18) fixed on the supporting plates (17) along the length direction of the trusses (14), and channel steel wire meshes (21) fixed on the supporting ribs (18).

7. The catwalk system according to claim 6, wherein: the fixing part (15) comprises a plurality of large nuts which are arranged corresponding to the supporting plate (17), the large nuts are fixed at the top of the truss (14), the adjusting part is a bolt (16) which is in threaded fit with the large nuts, and the top of the bolt (16) is abutted to the lower surface of the supporting plate (17).

8. The catwalk system according to claim 6, wherein: the fixing component (15) comprises a plurality of slots which are arranged corresponding to the supporting plate (17), the slots are fixed at the top of the truss (14), the adjusting component is an inserting block (22) which is in inserting fit with the slots, and the top of the inserting block (22) is abutted to the lower surface of the supporting plate (17).

9. The catwalk system according to claim 6, wherein: plate holes (20) are formed in one side, far away from the hinged end, of the supporting plate (17), ropes (19) are arranged in the plate holes (20) in a penetrating mode, one ends of the ropes (19) are tied on the truss (14), and the supporting plate (17) is pressed on the top end of the adjusting part.

10. The catwalk system according to claim 1, wherein: each fixing part (15) is arranged along the width direction of the truss (14), and more than 2 adjusting parts are arranged on each fixing part (15).