Suspension type extradosed cable-stayed bridge beam end cable hanging operation hanging frame platform

Abstract

The utility model relates to the technical field of bridge engineering, in particular to a suspension type extradosed cable-stayed bridge beam end cable hanging operation hanging frame platform. The utility model provides a suspension type extradosed cable-stayed bridge beam end cable hanging operation hanging frame platform which mainly comprises a frame platform used for an operation site of operators. The frame vertical rods are connected to the upper portion of the frame platform, and the frame vertical rods are used for force transmission of the whole operation platform and passage ascending and descending; the upper hanging arm beam is connected to the upper portion of the frame vertical rod, and the upper hanging arm beam is detachably connected with the beam face of a part to be constructed. According to the utility model, the suspension type structural design is adopted, the installation and the movement are carried out on the bridge surface, and the working surface is arranged below the flange plate of the bridge, so that a bracket or a working machine does not need to be erected below the bridge, and ground foundation treatment and bracket materials below the bridge are avoided. The use is flexible and convenient and is not restricted by sites.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge engineering, in particular to a suspension type low tower cable-stayed bridge beam end hanging cable operation hanging frame platform. BACKGROUND

[0002] In the field of bridge engineering, the beam end hanging cable operation of a low tower cable-stayed bridge is a key process. Currently, the traditional beam end hanging cable operation construction process mainly uses floor-mounted scaffolding, boom lifts and other tools to provide an operation platform.

[0003] When floor-mounted scaffolding is constructed, a large amount of ground hardening treatment work needs to be carried out, which not only consumes a large amount of manpower and material resources, but also increases the construction cost. At the same time, a large amount of steel is used, and the workload of erecting and dismantling the support is heavy, resulting in a long construction period. In terms of site, it is severely restricted, for example, when crossing an existing road, it needs to be frequently closed and diverted, which has a great impact on vehicle traffic and interferes with the normal traffic order.

[0004] Although the boom lift avoids some problems of the floor-mounted scaffolding to some extent, its operation range and flexibility are limited, and for some complex bridge structures and construction environments, it may not meet the construction requirements, and its carrying capacity may also be limited, which cannot adapt to the equipment and personnel load required by large hanging cable operation.

[0005] In addition, the traditional construction process also has certain hidden dangers in terms of safety, such as relatively limited protection measures for personnel working at high altitudes, which is prone to the risk of falling of personnel or objects at high altitudes, affecting construction safety and engineering quality.

[0006] In summary, the existing technology has many shortcomings and deficiencies in the beam end hanging cable operation of a low tower cable-stayed bridge, and a new solution is urgently needed to overcome these problems to improve construction efficiency, reduce costs, enhance safety and reduce dependence on site. CONTENT OF THE INVENTION

[0007] In view of the deficiencies of the prior art, the present application provides a suspension type low tower cable-stayed bridge beam end hanging cable operation hanging frame platform, which solves the above problems.

[0008] The present application provides a suspension type low tower cable-stayed bridge beam end hanging cable operation hanging frame platform, comprising:

[0009] a frame platform for the site of the operator's operation;

[0010] a frame vertical rod connected above the frame platform, the frame vertical rod being used for force transmission and up and down passage of the entire operation platform;

[0011] An upper hanging wall beam is connected to the upper part of the frame vertical rod, and the upper hanging wall beam is detachably connected with the beam surface of the part to be constructed.

[0012] In the suspension type low tower cable-stayed bridge beam end hanging cable operation hanging frame platform provided in the application, the frame platform is a planar frame structure, which is composed of an outer frame section steel and an inner distribution beam fixedly connected, and four lower protective fences are arranged on the frame platform.

[0013] In the suspension type low tower cable-stayed bridge beam end hanging cable operation hanging frame platform provided in the application, the lower protective fence is in the form of a column combined with a fence, the column is a section steel column, the bottom of which is fixedly connected with the frame platform section steel, and the fence is horizontally arranged in two rows and fixedly connected with the column.

[0014] In the suspension type low tower cable-stayed bridge beam end hanging cable operation hanging frame platform provided in the application, four frame vertical rods are arranged, the frame vertical rod is a force transmission structure of the frame of the whole hanging frame platform, is fixedly connected with the upper hanging wall beam upward, and is fixedly connected with the frame platform downward.

[0015] In the suspension type low tower cable-stayed bridge beam end hanging cable operation hanging frame platform provided in the application, two section steel inclined rods are arranged between the frame vertical rod and the outer frame section steel of the frame platform, for transmitting the load on the frame platform to the frame vertical rod.

[0016] In the suspension type low tower cable-stayed bridge beam end hanging cable operation hanging frame platform provided in the application, a plurality of steps are arranged between the two frame vertical rods on the same side, are fixedly connected with the frame vertical rod, and form an up-and-down channel.

[0017] In the suspension type low tower cable-stayed bridge beam end hanging cable operation hanging frame platform provided in the application, the upper hanging wall beam is a section steel overhanging wall structure, and two parallel upper hanging wall beams are arranged, and three transverse connections are arranged in the middle, the transverse connections are used for reinforcing the upper hanging wall beam and form a frame structure with the upper hanging wall beam.

[0018] In the suspension type low tower cable-stayed bridge beam end hanging cable operation hanging frame platform provided in the application, an upper protective fence is arranged on the upper hanging wall beam, the upper protective fence is a semi-enclosed structure, which encloses the part of the overhanging part of the beam surface to the operation platform, a plurality of columns are arranged on the protective fence, the columns are welded and fixed on the upper side of the upper hanging wall beam, and two horizontal fences are arranged on the protective fence and are fixedly connected with the columns.

[0019] The application has the following technical effects:

[0020] The utility model discloses a kind of operating platforms, which is used for low tower cable-stayed bridge end hanging cable operation construction, and is suitable for being used in the construction of low tower cable-stayed bridge end hanging cable operation construction crossing highway and the like site limited.

[0021] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0023] Figure 1The figure is a whole structure schematic diagram of the operation hanging frame platform of the suspension type low tower cable-stayed bridge end hanging cable operation Figure One ;

[0024] Figure 2 The figure is a whole structure schematic diagram of the operation hanging frame platform of the suspension type low tower cable-stayed bridge end hanging cable operation Figure Two ;

[0025] Figure 3 The figure is a whole structure schematic diagram of the operation hanging frame platform of the suspension type low tower cable-stayed bridge end hanging cable operation Figure Three .

[0026] Reference signs:

[0027] 1, upper protective fence; 21, upper hanging wall beam; 22, frame vertical rod; 23, cable-stayed rod; 24, frame platform; 3, passage step; 41, stand column; 42, rail; 5, frame platform distribution beam; 6, telescopic cylinder; 7, slide rail; 8, slide block. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0029] Some embodiments of the present application will be described in detail below with reference to the drawings. The following embodiments and features in the embodiments can be combined with each other without conflict.

[0030] It should be understood that the terms used in the present application specification are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the present application specification and the appended claims, unless otherwise clearly indicated by the context, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0031] It should be understood that, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, the same items or similar items with basically the same function and role are distinguished by using "first", "second" and the like. For example, the first groove and the second groove are only used to distinguish different grooves, and do not limit the sequence. Those skilled in the art can understand that "first", "second" and the like do not limit the quantity and execution sequence, and "first", "second" and the like do not necessarily mean different.

[0032] It should also be further understood that the term "and / or" used in the specification and the appended claims, means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0033] Reference Figures 1-3 A suspension type low tower cable-stayed bridge end hanging cable operation hanging frame platform, comprising:

[0034] A frame platform 24 for the site of the operator operation;

[0035] A frame vertical rod 22 connected above the frame platform 24, the frame vertical rod 22 is used for the force transmission and up and down passage of the whole operation platform;

[0036] An upper hanging wall beam 21 connected above the frame vertical rod 22, the upper hanging wall beam 21 is detachably connected with the beam surface of the part to be constructed.

[0037] The utility model adopts suspension type structure design, installs, moves all on the bridge deck, and the operation surface is below the bridge flange plate, does not need to set up support or arrange operation machinery under the bridge, and the bridge ground foundation treatment and support material are dispensed with. It is flexible and convenient to use, and is not restricted by the site.

[0038] Simple operation, stable structure. The whole operation platform adopts a steel frame structure, and multiple inclined braces and connection systems are arranged, the structure stress form is simple, and the structure form is relatively stable.

[0039] First, the upper hanging wall beam 21 is inserted into the embedded steel bars in the beam surface, so that the upper hanging wall beam 21 is detachably connected with the beam surface of the part to be constructed, thereby anchoring the whole operation platform to the beam surface. At this time, the upper hanging wall beam 21 serves as the main bearing part, bears the load from the whole platform and construction, and transmits the force to the anchoring end of the upper hanging wall beam 21.

[0040] The frame vertical rod 22 is fixedly connected with the upper hanging wall beam 21 upward and fixedly connected with the frame platform 24 downward, and it serves as the force transmission part of the whole operation platform, and transmits the load on the frame platform 24 to the upper hanging wall beam 21. Meanwhile, the two steel inclined rods 23 arranged between the frame vertical rod 22 and the outer frame steel of the frame platform 24 play the role of optimizing the force transmission path, can better transmit the load on the frame platform 24 to the frame vertical rod 22, and guarantee the effective transmission of force and the stability of the structure.

[0041] Multiple steps are arranged between the two frame vertical rods 22 on the same side, the steps are fixedly connected with the frame vertical rods 22, and form an up and down passage. Personnel can safely and conveniently move up and down between the beam surface and the frame platform 24 through the passage.

[0042] The frame platform 24 serves as a site for the operation personnel to perform the cable hanging and tensioning operation, and provides sufficient operation space for the construction.

[0043] The frame platform 24 is provided with four lower protective fences, which are in the form of a combination of a stand column 41 and a rail 42. The stand column 41 is a steel stand column 41, which is fixedly connected with the frame platform 24 at the bottom. The rail 42 is horizontally arranged in two layers and is fixedly connected with the stand column 41, so as to prevent personnel from falling from the edge of the platform.

[0044] The upper hanging wall beam 21 is provided with an upper protective fence 1, which is in a semi-enclosed structure and encloses the beam surface to the suspended part outside the operation platform. The protective fence is provided with a plurality of stand columns 41, which are welded and fixed on the upper side of the upper hanging wall beam 21. Meanwhile, two horizontal rails 42 are fixedly connected with the stand columns 41, so as to further provide protection for the personnel working at a high place and prevent personnel or objects from falling from a high place.

[0045] Before the operation platform is used, wooden boards and skirting boards are laid and fixed on the top surface of the frame platform 24, so as to prevent personnel and objects from falling and create a safe operation surface for the construction. The construction personnel perform the cable hanging and tensioning operation on the frame platform 24, and utilize the stable structure and protective facilities of the platform to safely and stably complete the construction task.

[0046] When a construction stage is completed, the operation platform can be hoisted to the next operation position by using a hoisting cable through a site crane, so as to improve the utilization rate of the equipment and reduce the construction cost. The whole process is simple to operate, the structure is reasonably designed, and the smooth performance of the cable hanging operation at the low tower end of the cable-stayed bridge can be effectively ensured.

[0047] The frame platform 24 is a planar frame structure, which is composed of an outer frame steel and an inner distribution beam 5 fixedly connected.

[0048] The frame platform 24 adopts a planar frame structure, which is composed of an outer frame steel and an inner distribution beam 5 fixedly connected. The overall strength and stability of the frame platform 24 are enhanced, so that it can better bear the load of artificial tools during construction, reduce the deformation risk of the platform during the construction process, and ensure the stability of the construction operation. The setting of the four lower protective fences provides all-round protection for the personnel working on the platform, effectively prevents personnel from accidentally falling from the edge of the platform, improves the safety of the construction site, and reduces the probability of safety accidents.

[0049] Compared with the platform without protective fence or unstable structure, the design further optimizes the working environment, enabling the construction personnel to focus more on the hanging rope operation, helping to improve the construction quality and efficiency, and meeting the requirements for personnel safety protection in engineering construction. The outer frame section steel and the inner distribution beam 5 are fixedly connected with each other to form a stable plane frame structure. The outer frame section steel mainly bears the lateral force and part of the vertical load from the outside, and the inner distribution beam 5 uniformly distributes the concentrated load on the frame platform 24 (such as the load at the machine tool placement point) to the entire frame structure, avoiding excessive local stress. The column 41 of the lower protective fence serves as a vertical support, is fixedly connected with the section steel of the frame platform 24 at the bottom, and transmits the self-weight of the protective fence and the lateral impact force possibly received to the frame platform 24. The horizontal rail 42 forms a protective barrier by being fixedly connected with the column 41, preventing personnel from crossing or accidentally sliding out of the platform edge. When the construction personnel work on the frame platform 24, they are protected by the lower protective fence, reducing the risk of falling from a high place. The lower protective fence is in the form of a combination of the column 41 and the rail 42, the column 41 is a section steel column 41, is fixedly connected with the section steel of the frame platform 24 at the bottom, and the rail 42 is horizontally arranged in two rows and is fixedly connected with the column 41. The column 41 and the rail 42 of the lower protective fence in the form of a combination clearly define the composition of the protective structure, so that the protective fence has high strength and stability. The section steel column 41, as the main vertical force member, has high bearing capacity and can bear a large lateral force and a certain impact force, ensuring that the protective fence is not easily deformed or collapsed when subjected to external force. The two horizontally arranged rails 42 further enhance the protective effect, and reasonable height setting can effectively block personnel from crossing the fence, and the fixed connection of the rail 42 with the column 41 ensures the integrity of the overall structure. The protective fence in this combined form is simple and practical, easy to process and install, reduces production costs on the premise of ensuring the protection function, improves the performance-price ratio of the protective facility, and provides a reliable and economical safety protection solution for the construction site. The section steel column 41 is fixedly connected with the section steel of the frame platform 24 at the bottom, transmits the force received by itself to the frame platform 24, and thus introduces the external force (such as personnel collision, wind blowing, etc.) received by the protective fence into the entire platform structure system. The horizontal rail 42 is fixedly connected with the column 41 to form a horizontal blocking surface. When the personnel approach the edge of the platform, the body first contacts the rail 42, the rail 42 transmits the force of the personnel to the column 41, and the column 41 transmits the force to the frame platform 24. The arrangement of the two rails 42 forms a double-layer protection, so that even if the personnel accidentally collide with the first rail 42, the second rail 42 can also play a secondary blocking role, greatly reducing the possibility of falling from the edge of the platform.

[0050] There are four frame vertical rods 22. The frame vertical rods 22 are the force transmission structure of the entire hanging frame platform frame. They are fixedly connected to the upper hanging wall beam 21 at the top and fixedly connected to the frame platform 24 at the bottom.

[0051] The four frame vertical members 22 create a stable spatial structure for the entire suspended platform frame, optimizing the force transmission system from a mechanical perspective and ensuring the uniformity and stability of the platform's stress in all directions. As the main force transmission structure, the frame vertical members 22 are fixedly connected upwards to the upper hanging beam 21, effectively transferring the load from the frame platform 24 to the upper hanging beam 21, and then from the upper hanging beam 21 to the beam surface structure. Their downward connection to the frame platform 24 ensures a tight bond between the platform and the force transmission components, preventing structural disconnection or instability during load transfer.

[0052] Compared to a fewer or poorly arranged vertical structure, the design of four frame verticals 22 improves the overall load-bearing capacity and deformation resistance of the platform, enabling the platform to adapt to more complex construction load conditions, ensuring the safety of the platform structure during construction, and providing a solid structural foundation for construction personnel to carry out various operations on the platform.

[0053] The four frame vertical members 22 are spatially distributed to jointly bear the load transmitted from the frame platform 24. Under vertical loads, such as the weight of personnel and equipment, and the tension generated during cable-stayed operations, the frame platform 24 transfers the load to the four frame vertical members 22. The frame vertical members 22 then transfer the load upwards to the upper hanging beam 21 through axial compression. After receiving the concentrated load from the frame vertical members 22, the upper hanging beam 21 disperses and transmits the load to the pre-embedded steel bars on the beam surface, and then to the entire beam structure. Under horizontal loads (such as wind force), the four frame vertical members 22 work together to form a spatial lateral force resisting system, resisting horizontal forces and preventing lateral displacement or swaying of the platform. The fixed connection between the frame vertical members 22, the upper hanging beam 21, and the frame platform 24 ensures effective force transmission. The connection nodes can withstand and transmit corresponding shear forces, bending moments, and other internal forces, ensuring the overall collaborative performance of the structure.

[0054] Two steel diagonal braces 23 are provided between the frame vertical bar 22 and the outer frame steel of the frame platform 24 to transfer the load on the frame platform 24 to the frame vertical bar 22.

[0055] Two inclined steel struts 23 are arranged between the frame vertical rods 22 and the outer frame profile steel of the frame platform 24, which improves the stress performance of the frame platform 24. The inclined struts 23 can more evenly distribute the load on the frame platform 24, which may have been concentrated in a local area, to the frame vertical rods 22, avoiding damage or deformation of local components due to excessive stress. By optimizing the load transfer path, the carrying efficiency of the entire structure is improved, and the overall stability of the structure is enhanced.

[0056] This design enables the platform to better coordinate the stress relationship between components when subjected to different types and distributions of loads, improving the structure's adaptability to complex load conditions, further ensuring the safety and reliability of the platform during construction, prolonging the service life of the platform, and reducing maintenance and replacement costs due to structural damage.

[0057] When the frame platform 24 is subjected to a load, the load is transferred to the steel strut 23 through the outer frame profile steel. The inclined arrangement of the steel strut 23 decomposes part of the load perpendicular to the frame vertical rod 22 into tension and compression along the direction of the inclined strut 23, and transfers these forces to the frame vertical rod 22. In this process, the inclined strut 23 changes the direction of load transfer, enabling the frame vertical rod 22 to more effectively bear the load from the frame platform 24. For example, when one side of the platform is subjected to a larger load, the inclined strut 23 on that side will generate tension, pulling part of the load to the adjacent frame vertical rod 22, thereby enabling the frame vertical rods 22 to share the load together, achieving uniform distribution of the load. At the same time, the presence of the inclined strut 23 also increases the overall stiffness of the structure, limiting the relative deformation between the frame platform 24 and the frame vertical rod 22, enabling the entire structure to maintain better integrity during loading.

[0058] A plurality of steps are arranged between the two frame vertical rods 22 on the same side and are fixedly connected to the frame vertical rods 22, forming an up-and-down passage.

[0059] The plurality of steps arranged between the two frame vertical rods 22 on the same side form an up-and-down passage, providing a safe and convenient vertical access method for construction personnel. The arrangement of the steps conforms to the principles of ergonomics, facilitating personnel climbing and reducing physical exertion and safety risks during the process of going up and down. The distribution of the plurality of steps can adapt to different heights of operation requirements, enabling construction personnel to quickly and stably reach the frame platform 24 for operation or return to the beam surface, improving construction efficiency.

[0060] This up-and-down passage design is integrated with the entire hanging frame platform structure, does not occupy additional space, and the fixed connection of the steps to the frame vertical rods 22 ensures the stability and reliability of the passage. Compared to other temporary or inconvenient up-and-down methods, this design improves the convenience of personnel access on the construction site, helps to optimize the construction process, and promotes the smooth progress of the construction process.

[0061] The steps are fixedly connected with the frame vertical rods 22 and become part of the frame vertical rods 22 structure. When a person climbs the steps, the body weight is applied to the steps through the feet, and the steps transmit the load to the frame vertical rods 22. The frame vertical rods 22 bear the concentrated load from the steps and transmit it to the connecting members at both ends (the upper hanging wall beam 21 and the frame platform 24). During the process of the person going up and down, the spacing and height of the steps are designed to ensure the comfort and safety of the person climbing, and the foothold point of each step is stable, so that the person can smoothly ascend or descend with the support of the steps. At the same time, due to the firm connection of the steps with the frame vertical rods 22, the steps will not sway or displace during the process of the person climbing, ensuring the stability of the up and down passage.

[0062] The upper hanging wall beam 21 is a type steel cantilever structure, and there are two parallel upper hanging wall beams 21, with three cross links arranged in the middle. The cross links are used to reinforce the upper hanging wall beam 21 and form a frame structure with it.

[0063] The upper hanging wall beam 21 adopts a type steel cantilever structure and is provided with three cross links, which effectively enhances the bending and torsional resistance of the upper hanging wall beam 21. The cantilever structure can adapt to the special space position requirements of the beam end, facilitate connection with the beam surface and provide suspension support. The arrangement of three cross links connects the two parallel upper hanging wall beams 21 into a whole frame structure, further improving the stability of the upper hanging wall beam 21, so that it can better bear the load transmitted from the frame vertical rods 22 and the external interference force (such as wind force, etc.).

[0064] The structure design of the upper hanging wall beam 21 can effectively transfer the platform load to the beam surface structure under the premise of ensuring the strength and stability of the upper hanging wall beam 21, and ensure the safe suspension of the entire hanging frame platform at the beam end. At the same time, the stable structure of the upper hanging wall beam 21 also provides a reliable support foundation for the construction operation on the platform, which helps to improve the construction quality and safety, and reduces the influence of structural deformation on the operation accuracy of the hanging cable. As a cantilever structure, the upper hanging wall beam 21 is fixedly connected to the frame vertical rod 22 at one end and bears the vertical and horizontal loads transmitted from the frame vertical rod 22. Under the action of vertical load, the upper hanging wall beam 21 mainly bears the bending moment, and the section of the profile steel can resist the tensile stress and compressive stress generated by the bending moment. The three horizontal connections connect two parallel upper hanging wall beams 21 together to form a frame structure. When one side of the upper hanging wall beam 21 is deformed under the action of load, the horizontal connection will limit the deformation and transfer the internal force to make the two upper hanging wall beams 21 bear the load together and resist the bending moment and torque generated by the load. Under the action of horizontal load (such as wind), the frame structure composed of the upper hanging wall beam 21 and the horizontal connection can transfer the horizontal force to the embedded steel bars in the beam surface, thereby ensuring the stability of the entire upper hanging wall beam 21 structure. The connection between the upper hanging wall beam 21 and the embedded steel bars in the beam surface ensures that the load can be finally transmitted to the beam structure, maintaining the balance and stability of the entire hanging frame platform at the beam end.

[0065] The upper hanging wall beam 21 is provided with an upper protective fence 1, which is a semi-enclosed structure that encloses the suspended part of the beam surface to the operation platform. The protective fence is provided with a plurality of vertical columns 41, which are welded and fixed to the upper side of the upper hanging wall beam 21. The protective fence is provided with two horizontal railings 42, which are fixedly connected with the vertical columns 41. The upper protective fence 1 provided on the upper hanging wall beam 21 is a semi-enclosed structure, which effectively protects the suspended part of the beam surface to the operation platform and maximizes the risk area of falling from a high place. The plurality of vertical columns 41 of the protective fence are welded and fixed to the upper side of the upper hanging wall beam 21, which ensures the vertical stability of the protective fence and enables it to withstand a certain lateral impact force and personnel leaning force. The two horizontal railings 42 are fixedly connected with the vertical columns 41, which further enhances the protective effect and prevents personnel from crossing the fence from different height positions.

[0066] In specific implementation, the upper hanging wall beam 21 is inserted into the embedded steel bars in the beam surface to anchor the entire operation platform to the beam surface, and the force is transmitted to the anchoring end of the upper hanging wall beam 21. Personnel within the range of the upper protective fence 1 enter the interior of the operation platform through the up-and-down passage formed by the frame vertical rod 22 and the passage steps 3.

[0067] In specific implementation, before the operation platform is used, wooden boards and skirting boards are laid and fixed on the top surface of the frame platform 24 to prevent personnel and objects from falling.

[0068] In the embodiment, the suspension operating platform can use a field hoist to hoist the operating platform to the operating position by using a sling.

[0069] The upper protective fence 1 is further provided with a slide rail 7, which is a C-shaped structure, i.e., a semi-enclosed structure, and the corners are rounded. The side wall of the slide rail 7 is provided with a sliding groove, and a sliding block 8 is arranged in the sliding groove. The sliding block 8 is in sliding connection with the slide rail 7 and is also in clamping connection. An extension cylinder 6 is arranged outside the slide rail 7, and the driving rod of the extension cylinder 6 can pass through the sliding groove. The extension cylinder 6 has six, two on each side, and is arranged at equal intervals. A weight sensor is further arranged, and a gravity plate is arranged below the operating platform, and the weight sensor is arranged below the gravity plate. The sliding block 8 is connected with a safety buckle carried by a person. During construction, when the weight sensor senses a change in weight, the extension cylinder 6 quickly extends to limit the movement of the sliding block 8, so that the person falls accidentally, and the sliding block 8 is locked in time. The sliding block 8 is in sliding and clamping connection with the slide rail 7, which also prevents the person from falling.

[0070] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A suspended low tower cable-stayed bridge end hanging cable operation hanging frame platform, characterized in that, The utility model relates to a kind of frame platform for the site of operator operation, frame vertical pole, frame vertical pole for the force transmission of entire operation platform and up and down passage are connected in the upper of frame platform, upper hanging wall beam is detachably connected with the beam surface of the part to be constructed in the upper of frame vertical pole, the upper hanging wall beam is section steel cantilever structure, the upper hanging wall beam has two parallel settings, three cross links are arranged in the middle, and the cross link is used to reinforce the upper hanging wall beam, and forms frame structure with it, upper protective fence is arranged on the upper hanging wall beam, and the upper protective fence is half-enclosed structure, and the upper protective fence is enclosed to the beam surface to the suspended part outside operation platform, the protective fence is provided with multiple vertical columns, the vertical column is welded and fixed on the upper side of the upper hanging wall beam, the protective fence is provided with two horizontal railings, and the vertical column is fixedly connected with the protective fence, the upper protective fence is also provided with slide rail, the slide rail is C-shaped structure, the corner is round, the side wall of the slide rail is provided with sliding groove, the sliding groove is provided with sliding block, the sliding block is slidably connected with the slide rail, is simultaneously clamped, the slide rail is provided with telescopic pneumatic cylinder outside, the driving rod of the telescopic pneumatic cylinder can pass through the sliding groove, the telescopic pneumatic cylinder has six, two in each side, and the telescopic pneumatic cylinder is equidistantly arranged, and also provided with weight sensor, gravity plate is arranged below operation platform, the weight sensor is arranged below the gravity plate, the sliding block is connected with the safety buckle carried by personnel. The frame platform is a plane frame structure, including outer frame section steel and inner distribution beam fixed connection, four lower protective fences are arranged on the frame platform. The lower protective fence is in the form of vertical column plus railing combination, the vertical column is section steel vertical column, the bottom is fixedly connected with the frame platform section steel, and the railing is two horizontally arranged and fixedly connected with the vertical column. The frame vertical pole is provided with four, and the frame vertical pole is the force transmission structure of entire hanging frame platform frame, is fixedly connected with the upper hanging wall beam upward, and is fixedly connected with the frame platform downward. Two section steel inclined rods are arranged between the frame vertical pole and the outer frame section steel of the frame platform, to transmit the load on the frame platform to the frame vertical pole. Multiple steps are arranged between two frame vertical poles on the same side, and are fixedly connected with the frame vertical pole to form up and down passage. ​ 2. The suspended low tower cable-stayed bridge end hanging cable operation hanging frame platform according to claim 1, characterized in that, ​ 3. The suspended low tower cable-stayed bridge end hanging cable operation hanging frame platform according to claim 2, characterized in that, ​ 4. The suspended low tower cable-stayed bridge end hanging cable operation hanging frame platform according to claim 1, characterized in that, ​ 5. The suspended low tower cable-stayed bridge end hanging cable operation hanging frame platform according to claim 4, characterized in that, ​ 6. The suspended low tower cable-stayed bridge end hanging cable operation hanging frame platform according to claim 5, characterized in that, ​

Images