Method for lifting large-tonnage front fulcrum guy cable hanging basket through in-situ assembly of supports

Abstract

The invention discloses a method for lifting a large-tonnage front-fulcrum cable-stayed hanging basket through in-situ assembly of a support, and relates to the technical field of constructional engineering.The method comprises the steps that S1, the support is erected on a construction site, and segments are poured, S2, stay cables are hung and tensioned to serve as front supporting points of the hanging basket, S3, a cable-stayed hanging basket system is assembled in situ at the positions of the segments, and S4, the front supporting points of the hanging basket system are formed. The construction method comprises the following steps: S1, performing section-by-section forward movement through a cable-stayed hanging basket system to complete each process of the sections, S4, performing section-by-section forward movement through the cable-stayed hanging basket system to sequentially complete cantilever casting construction of subsequent sections, S5, adopting a combined structure form of a steel pipe pile bailey truss and a disc buckle bracket as a support erection system for a bracket, and S6, directly performing in-situ assembly on a large-tonnage cable-stayed hanging basket by utilizing the bracket which is erected on site to reduce the lifting height of the hanging basket. The method for lifting the large-tonnage front fulcrum guy cable hanging basket through in-situ assembly of the supports can meet the requirements of different terrains and construction environments, is particularly suitable for construction of large complex structures such as cable-stayed bridges and has high adaptability and general applicability.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering, and in particular to a method for assembling and lifting a large-tonnage front fulcrum guy rope hanging basket in situ by utilizing a bracket. Background Art

[0002] In the construction of modern cable-stayed bridges, the cable-stayed hanging basket is an important construction equipment and is widely used in the construction of cantilever cast-in-place prestressed concrete main beams. The main function of the cable-stayed hanging basket is to bear the deadweight of the beam and the construction load, and to be able to move forward section by section, so as to realize the suspended pouring operation of the main beam of the cable-stayed bridge. Its design feature is to use the inclined cable of the beam section to be poured as the front fulcrum of the hanging basket to provide supporting force, anchor the rear end of the hanging basket to the poured beam section, and the inclined cable and the poured beam section jointly bear the concrete gravity of the section to be poured. In this way, the force bearing mode of the cantilever beam in the ordinary hanging basket is changed from the original cantilever beam force bearing to the simply supported beam force bearing, which greatly increases the length and load-bearing capacity of the suspended segment and speeds up the construction progress.

[0003] In the related art, the guy-cable hanging basket platform is often used for aerial work on the concrete main beam of the cable-stayed bridge. Due to the large size and heavy weight of the guy-cable hanging basket platform, it is difficult to transport and usually needs to be assembled at the construction site before being hoisted and installed. There are generally two methods for installing the guy-cable hanging basket: the first is to install the basket directly at the predetermined position; the second is to use an automatic continuous lifting system to lift the basket to the bridge deck main beam for installation after the assembly is completed on the ground. However, the guy-cable hanging basket in the prior art usually requires the use of multiple sets of lifting devices to operate during the lifting process. This lifting method easily leads to uneven force on the lifting points, and some lifting points are subjected to excessive force, which poses a safety hazard and may threaten the safety of the construction process and equipment. Summary of the invention

[0004] The purpose of the present invention is to provide a method for assembling a large-tonnage front-support cable hanging basket in situ by using a bracket, optimize the lifting and installation process of the cable hanging basket, and improve its construction efficiency and safety.

[0005] To achieve the above object, the present invention provides the following technical solution: a method for assembling a large-tonnage front fulcrum guy rope hanging basket in situ by using a bracket, the method comprising:

[0006] S1. Set up scaffolding and cast sections at the construction site;

[0007] S2, hang and tension the inclined cable to make it the front fulcrum of the hanging basket;

[0008] S3. Assemble the guy rope hanging basket system in situ at the segment position to complete various processes of the segment;

[0009] S4, move forward section by section through the guy wire hanging basket system, and complete the suspended pouring construction of subsequent sections in sequence;

[0010] S5. The support adopts a combination of steel pipe pile Bailey frame and disc bracket as the support and erection system;

[0011] S6. Use the scaffolding already set up on site to directly assemble the large-tonnage guy-cable hanging basket on site, reducing the lifting height of the hanging basket.

[0012] Preferably, the step of erecting the support includes: using a structural form of a combination of steel pipe piles and Bailey frames to form a stable supporting foundation.

[0013] Preferably, the steps of hanging and tensioning the stay cables include: after casting the segments, tensioning the stay cables to a predetermined tensioning force by means of special equipment.

[0014] Preferably, the assembly steps of the guying basket system include: after completing the modular assembly of the guying basket on the ground, installing it to the main beam position of the bridge using a lifting device.

[0015] Preferably, when the guy rope hanging basket system moves forward section by section, an automatic continuous lifting system is used to lift and move the hanging basket.

[0016] Preferably, the height of the support is matched with the weight and size of the segment to ensure stability and safety during construction.

[0017] Preferably, the guy rope hanging basket can flexibly adjust the horizontal posture of the hanging basket through the tensioning adjustment function of the hanging basket system to ensure construction accuracy.

[0018] Preferably, in the combined structure of the steel pipe pile Bailey frame and the buckle bracket, the steel pipe pile is used for ground fixation, while the buckle bracket provides additional stable support.

[0019] Preferably, during the installation of the guy wire hanging basket, on-site brackets are used for direct assembly without the need for high-altitude hoisting, thereby reducing construction risks.

[0020] Preferably, steps S1 to S6 may be performed alternately between different construction sections, thereby improving construction efficiency and casting accuracy of the sections.

[0021] It can be seen from the above technical solution that the present invention has the following beneficial effects:

[0022] The method of using the bracket to assemble and lift the large-tonnage front support cable hanging basket in situ, by using the bracket that has been erected on site to directly assemble the large-tonnage cable hanging basket in situ, significantly reduces the lifting height of the hanging basket. Compared with the traditional method, it can reduce the high-altitude lifting operation of heavy objects during the construction process, reduce the construction difficulty and safety hazards, and can more efficiently carry out the suspended pouring construction of the main beam of the cable-stayed bridge. Combined with the automatic continuous lifting system, the cable hanging basket can accurately control the forward movement and lifting process, effectively shorten the construction period, and improve the construction efficiency. The bracket adopts the form of a combined structure of steel pipe pile Bailey frame and disc buckle bracket, which can provide a stable support system to ensure the safety of various operations during the construction process. At the same time, the height and strength of the bracket can be reasonably matched according to the different weights and sizes of the segments, further improving the stability and safety of the construction process. The existing bracket is used for hanging basket assembly, reducing the use of transportation and high-altitude lifting equipment, thereby reducing the logistics cost and equipment rental cost during the construction process. At the same time, the modular design of the cable basket system can greatly improve the efficiency of disassembly and assembly, reduce labor costs, and accurately tension the cable through special equipment to ensure that the force state of the cable is uniform and meets the predetermined tensioning force requirements. In addition, the forward movement of the cable basket system adopts electric drive and full-process monitoring system to ensure precise control of each link, making the construction more controllable and safe. Through on-site assembly of the cable basket and combined with the step-by-step forward movement of the bracket and the cable basket system, it can adapt to the needs of different terrains and construction environments, especially suitable for the construction of large and complex structures such as cable-stayed bridges, with strong adaptability and universal applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The figure is a flow chart of the method of the present invention. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figure 1 As shown, a method for assembling a large-tonnage front fulcrum guy rope hanging basket in situ by using a bracket, the method comprising:

[0026] S1. Set up scaffolding and cast sections at the construction site;

[0027] S2, hang and tension the inclined cable to make it the front fulcrum of the hanging basket;

[0028] S3. Assemble the guy rope hanging basket system in situ at the segment position to complete various processes of the segment;

[0029] S4, move forward section by section through the guy wire hanging basket system, and complete the suspended pouring construction of subsequent sections in sequence;

[0030] S5. The support adopts a combination of steel pipe pile Bailey frame and disc bracket as the support and erection system;

[0031] S6. Use the scaffolding already set up on site to directly assemble the large-tonnage guy-cable hanging basket on site, reducing the lifting height of the hanging basket.

[0032] The present invention provides a stable support foundation for the subsequent cable hanging basket system by setting up a support system composed of a steel pipe pile Bailey frame and a disc buckle support at the construction site. After the support is set up, the front fulcrum of the hanging basket is connected to the support by using a cable to ensure the stability of the hanging basket system. On this basis, the hanging basket system moves forward by relying on the tensioned cable during the segment construction process to gradually complete the casting of the subsequent segments. The segment-by-segment forward movement of the cable hanging basket not only ensures the accuracy of casting each segment, but also improves the efficiency and safety of the construction. By reasonably configuring the support structure, the height of the hanging basket is reduced, thereby reducing the safety risks and material consumption during construction and improving the overall construction efficiency. The present invention significantly improves the stability and adaptability of the support system by adopting a combined structure of a steel pipe pile Bailey frame and a disc buckle support. This combined structure can effectively bear the weight of a large-tonnage cable hanging basket and ensure the smooth movement of the hanging basket during the construction process. By adopting the cable as the front fulcrum of the hanging basket, the height of the hanging basket is reduced, making the construction process safer. Using the existing support on site to directly assemble the cable hanging basket in situ not only simplifies the installation process, but also reduces the high-altitude operations during construction and reduces the risks of construction workers. In addition, the step-by-step forward construction method makes the segment construction more accurate and efficient, improving the overall quality and progress of the suspended pouring construction.

[0033] The support system in the present invention can be flexibly adjusted according to the specific conditions of the construction site. For example, under different soil and environmental conditions, the material or layout of the support can be appropriately changed to ensure the reliability and stability of the supporting structure. In addition, the material selection of the inclined cable can be optimized according to the engineering requirements, such as using higher strength steel strands or composite materials to further improve the carrying capacity of the hanging basket. For the cable hanging basket system, in addition to in-situ assembly, it can also be assembled at a nearby location by pre-assembly and then hoisted to the construction location to meet the construction needs of different scales. The flexibility and adaptability of this method make it widely used in the construction of different types of bridges, buildings and other large structures.

[0034] The steps of erecting the support include: using a structural form of a combination of steel pipe piles and Bailey frames to form a stable support foundation. In the present invention, the support is erected in a combined structural form of steel pipe piles and Bailey frames, aiming to provide a stable and reliable support foundation for a large-tonnage cable hanging basket. The steel pipe piles can provide strong longitudinal and lateral support forces by being driven into the deep layer of the foundation, ensuring that the support will not tilt or collapse due to excessive load during the construction process. As a modular steel structure, the Bailey frame is convenient for quick assembly on site and provides excellent lateral support capacity. The combination of the two not only ensures the stability of the foundation, but also enhances the flexibility of the support, so that it can adapt to the needs under different construction conditions. This combined structure greatly improves the safety and efficiency of construction by optimizing the support method. The steel pipe piles can go deep into the ground to provide deep and stable support forces, ensuring that the support does not displace or deform under long-term load, while the Bailey frame provides lateral stable support, making the overall support system more stable. The Bailey frame itself is a modular design, which is convenient and quick to assemble on site, greatly shortening the time for erecting the support. The combination of steel pipe piles and Bailey frames makes the support system highly adaptable. The layout and height of the support can be adjusted according to the actual situation on site to adapt to different terrains and construction environments. Compared with the traditional single support system, this combined structure can effectively reduce material and construction costs, while reducing unnecessary waste of resources.

[0035] In addition to adopting the combined structural form of steel pipe piles and Bailey frames, the support erection of the present invention can also be flexibly adjusted according to construction requirements. For example, under soft soil foundation conditions, the buried depth of the steel pipe piles can be increased to enhance the support's ability to resist compression and tilt. In some special environments, the Bailey frame can be used in combination with other types of supporting structures (such as steel frames, concrete structures, etc.) to further improve the support's bearing capacity and stability. In addition, the support assembly method can be selected according to the specific conditions of the site, either manual assembly or mechanized assembly. In some cases where construction conditions are more complex, the support's structural form can also be optimized to meet more stringent safety and construction requirements.

[0036] The steps of hanging and tensioning the stay cable include: after casting the segment, tensioning the stay cable to a predetermined tensioning force by special equipment. In the present invention, the steps of hanging and tensioning the stay cable are performed by special equipment, aiming to provide a stable front fulcrum for the cable hanging basket. After casting the segment, the stay cable is first fixed to the support structure by special equipment to ensure that its position and angle are consistent with the design requirements. Then, the stay cable is tensioned by using tensioning equipment, and the tensioning force is gradually increased until the predetermined tensioning force is reached. This process requires precise control of the size and uniformity of the tensioning force to ensure that the stay cable can effectively support the hanging basket and maintain its stability. In the whole process, the adjustment system of the tensioning equipment plays a key role to ensure that the tension of the stay cable can be evenly applied according to the design requirements to prevent the cable from being over-stretched or under-tensioned, thereby ensuring the safety and accuracy of the hanging basket. The method of tensioning the cable to a predetermined tensioning force by special equipment in the present invention has the following beneficial effects: the tension of the cable can be accurately controlled by the special equipment to ensure that it meets the design requirements and avoid instability of the hanging basket due to excessive or insufficient tension. The tensioning of the cable makes the front fulcrum of the hanging basket more stable, ensures the balance and accuracy in the subsequent segment casting process, and improves the construction quality. The use of special equipment for tensioning can avoid the errors and safety hazards that may be caused by manual tensioning, and ensure that the tensioning process of the cable is safer and more reliable. The tensioning steps of the cable can be completed quickly and accurately by special equipment, which reduces human intervention in construction, improves construction efficiency, and shortens the construction period.

[0037] In addition to tensioning by special equipment after casting the sections, the cable hanging and tensioning steps of the present invention can also be flexibly adjusted according to different construction stages. For example, in the initial construction stage, the tensioning force of the cable can be gradually increased by staged control to reduce the impact on the hanging basket structure. Under some special working conditions, such as extreme weather conditions or equipment failures, tensioning operations can also be performed by preset backup equipment to ensure the smooth progress of the construction plan. In addition, the tensioning equipment of the cable can be customized according to the specific requirements of the project, and suitable tensioning machinery, tension sensors and tensioning monitoring systems can be selected to achieve more accurate and efficient operations.

[0038] The assembly steps of the guy rope hanging basket system include: after completing the modular assembly of the guy rope hanging basket on the ground, installing it to the main beam of the bridge by using a lifting device. In the present invention, the assembly steps of the guy rope hanging basket system first complete the modular assembly on the ground. The ground assembly adopts a modular design, and the guy rope hanging basket is divided into a plurality of modules that can be assembled separately, and each module includes components such as a support structure, a traction device and a connector. After the ground assembly is completed, the entire assembled guy rope hanging basket system is hoisted to the position of the main beam of the bridge by using a lifting device. During the hoisting process, the operation of the lifting device needs to accurately control the hoisting angle, position and speed to ensure that the guy rope hanging basket can be accurately installed to the predetermined position. After the installation is completed, by finely adjusting the position of each module, the overall structure of the hanging basket system is ensured to be stable and can effectively support subsequent construction work. The entire assembly and hoisting process greatly reduces the risk of high-altitude operations and also improves the efficiency of construction. Ground assembly greatly reduces the difficulty and risk of high-altitude operations, allowing construction personnel to assemble the hanging basket in a safer environment. The modular design of the guyed basket system allows efficient assembly on the ground, avoiding the complexity and time consumption of high-altitude assembly in traditional methods, thereby shortening the construction period. Ground assembly allows for more precise docking and debugging of each module, avoiding errors in high-altitude operations and improving overall installation accuracy and structural stability. By using lifting equipment to hoist the basket to the main beam position, the operation is more precise and safe, which helps reduce construction problems caused by unstable equipment or improper hoisting.

[0039] When the cable hanging basket system moves forward section by section, an automatic continuous lifting system is used to lift and move the hanging basket. In the present invention, the section by section forward movement of the cable hanging basket system is achieved by an automatic continuous lifting system. The system is composed of a series of automated equipment, including a lifting device, a transmission device and a control system. Whenever the construction of a segment is completed, the automatic continuous lifting system will start, automatically lift the cable hanging basket to a predetermined position and move it forward. The lifting device lifts the hanging basket smoothly through a power drive device, and then controls the hanging basket to move forward through a transmission device to ensure that the distance and position of each forward movement can be accurately controlled. The entire lifting and forward movement process is automatically adjusted by the control system to ensure the stability of the hanging basket and the continuity of the operation. The automated control of the system makes the operation process more efficient and accurate, reduces the need for manual intervention, and improves the safety of construction. The application of the automatic continuous lifting system can realize the automation of the lifting and forward movement process of the hanging basket, reduces the need for manual operation, and improves construction efficiency and safety. The system can accurately control the lifting and movement of the hanging basket, ensure that the position, angle and stability of each segment meet the design requirements, thereby ensuring the construction quality. The design of the automatic continuous lifting system ensures that the lifting and forward movement of the hanging basket can be seamlessly connected, avoiding the downtime or errors caused by equipment switching or manual operation in traditional methods, and improving the continuity and smoothness of the operation. The automated system reduces the need for high-altitude operations and manual intervention, effectively reducing safety risks during construction, especially when lifting and forward moving large-tonnage hanging baskets, which can ensure the safety of personnel.

[0040] In addition to using an automatic continuous lifting system to lift and move the hanging basket forward, the automated lifting system of the present invention can also be flexibly adjusted according to different construction requirements. For example, in some construction sites with complex terrain or special environments, the parameters of the lifting system can be customized according to actual needs, and the lifting speed, forward movement interval or control accuracy can be adjusted to ensure that the system can adapt to various construction conditions. In addition, the power source of the lifting system can choose different types of energy, such as electricity, hydraulic or pneumatic systems, to adapt to the actual conditions of different construction sites. For the forward movement process of the cable hanging basket, a redundant system or monitoring device can also be added to ensure that each step of the lifting and forward movement process can be monitored in real time to prevent accidents. The flexibility and adaptability of the system enable it to be widely used in various large-tonnage hanging basket construction tasks, especially for the construction of some large bridges or structures, which can effectively improve construction efficiency and ensure project quality.

[0041] The height of the bracket is matched with the weight and size of the segment to ensure stability and safety during the construction process. In the present invention, the height of the bracket is accurately matched according to the weight and size of the segment, in order to ensure that the bracket can provide sufficient support and stability during the entire construction process, and avoid structural tilt or instability caused by unreasonable bracket design. Specifically, the weight and size of each construction segment need to be measured and analyzed first, and the load-bearing capacity and support height required by the bracket are calculated based on these data. The height of the bracket is closely related to the weight of the segment, because heavier or larger segments require higher and stronger support to ensure that the lifting, forward movement, and casting of the segment during the construction process can be carried out safely and stably. By accurately designing the height and structure of the bracket, it can be ensured that the hanging basket system will not have any unstable or dangerous situations during the entire construction process, thereby improving construction efficiency and safety. The matching design of the bracket height with the weight and size of the segment can ensure that the bracket will not be overloaded or deformed during the load-bearing process, greatly improving the stability of the construction process. Reasonable support can effectively share the load during construction, avoid accidents caused by unstable support or improper design, and ensure the safety of construction workers. Since the height of the support matches the weight and size of each segment, the support setting method and height can be flexibly adjusted according to the needs of different construction stages and different types of segments, thereby improving the adaptability and flexibility of construction. Accurate support design can avoid excessive use of materials, effectively control construction costs, and ensure the support's bearing capacity and stability.

[0042] In actual construction, in addition to accurately calculating the height of the support according to the weight and size of the segment, the present invention can also be appropriately adjusted according to the different conditions of the construction site. For example, in some areas with complex or unstable geological conditions, it may be necessary to increase the height and stability of the support, or even combine ground reinforcement technology (such as foundation piles, soil solidification, etc.) to enhance the stability of the support. During the construction process, the height and support method of the support can also be dynamically adjusted according to the progress of the segment casting, that is, according to the construction requirements of each stage, the height and position of the support can be flexibly designed and adjusted to ensure that it can meet the ever-changing load requirements. In addition, the design of the support can adopt a modular structure, which is convenient for rapid adjustment and replacement according to the weight and size changes of different segments, thereby improving the flexibility and efficiency of construction.

[0043] The cable hanging basket can flexibly adjust the horizontal posture of the hanging basket through the tensioning adjustment function of the hanging basket system to ensure the construction accuracy. In the present invention, the horizontal posture adjustment of the cable hanging basket is achieved through the tensioning adjustment function in the hanging basket system. Specifically, the hanging basket system is equipped with a plurality of inclined cables and tensioning devices, and all of these cables adjust the horizontal posture of the hanging basket by adjusting the tensioning force. By adjusting the tensioning force of each cable, the force distribution and posture of the hanging basket can be changed so that it always remains in a predetermined horizontal position during the construction process. Generally, the tensioning force in the cable hanging basket system can be monitored and adjusted in real time by the tensioning equipment to ensure that the hanging basket can flexibly adjust its posture according to the construction progress and load changes. For example, when a certain section is cast, the hanging basket may be subjected to different loads, and the tensioning device will automatically make fine adjustments to keep the hanging basket in a horizontal state, avoiding construction errors or structural offsets caused by inaccurate postures of the hanging basket. Therefore, the posture adjustment function of the hanging basket ensures the accuracy and overall quality of the construction. By accurately adjusting the horizontal posture of the hanging basket, construction errors caused by tilting or uneven hanging baskets can be effectively avoided, ensuring that the casting position, angle and size of each section meet the design requirements, thereby ensuring the accuracy of the entire project. As the load changes during the construction process, the hanging basket system can automatically adjust its posture according to the actual situation. This flexibility enables the construction to cope with changing conditions and improves the adaptability of the construction. The tension adjustment function can automatically make fine adjustments, greatly reducing the need for manual intervention, reducing human operation errors, and improving construction efficiency and safety. By maintaining the horizontal state of the hanging basket, structural instability or deformation caused by improper hanging basket posture can be effectively prevented, ensuring the structural safety of the project.

[0044] In addition to using the tensioning adjustment function to adjust the horizontal posture of the hanging basket, the cable hanging basket system of the present invention can also be further optimized in combination with other technical means. For example, sensors and automatic monitoring systems can be used to detect the posture of the hanging basket in real time, and automatically adjust the tensioning force according to the detection data to achieve more precise control. Under some special working conditions (such as extreme weather or unforeseen load changes), the adjustment system of the hanging basket can also be adjusted in combination with the emergency plan to ensure that the stability and construction accuracy of the hanging basket can be maintained even in emergencies. In addition, the tensioning adjustment device of the hanging basket can be customized according to actual needs, and suitable transmission systems and adjustment devices can be selected, such as electric tensioning systems, hydraulic tensioning systems, etc., to meet the requirements of different engineering projects.

[0045] In the combined structure of steel pipe pile Bailey frame and disc buckle bracket, the steel pipe pile is used for ground fixing, while the disc buckle bracket provides additional stable support. In the present invention, the bracket system is composed of a steel pipe pile Bailey frame and a disc buckle bracket to ensure the stability and safety of the large-tonnage front support cable hanging basket. The steel pipe pile is mainly used for ground fixing. By piling or burying the steel pipe pile, a solid support foundation is formed on the ground, thereby providing sufficient bearing capacity for the bracket system. The design of the steel pipe pile takes into account the geological conditions and load requirements to ensure that it can bear the weight of the hanging basket and the construction section during the construction process. The disc buckle bracket is used to provide additional stable support. It consists of a series of disc buckles, beams and support frames, and has good modularity and adjustability. The disc buckle bracket can not only improve the strength of the bracket structure, but also adjust the height and position of the bracket according to actual construction needs to ensure the stability of the bracket system. While the steel pipe pile provides a fixed foundation, the disc buckle bracket further enhances the stability of the entire bracket system by increasing the support points and connection points, thereby effectively preventing the bracket from tilting or being unstable when lifting and moving the hanging basket forward. The steel pipe piles provide a solid ground fixed support, while the disc bracket further improves the overall stability and load-bearing capacity of the bracket by strengthening the support and connection points, ensuring safety during the construction process. The steel pipe piles can be appropriately designed according to different geological environments, and are particularly suitable for providing strong ground support at construction sites with weak or loose soil layers. The modular design of the disc bracket enables it to flexibly adapt to different construction environments. The disc bracket has the characteristics of rapid assembly and disassembly, and a stable support system can be built in a short time, greatly improving construction efficiency. At the same time, the combination of steel pipe piles and disc brackets makes the construction process simpler and reduces the need for other equipment. The adjustability of the disc bracket makes the erection and dismantling of the bracket more flexible, and the structure of the bracket can be dynamically adjusted according to the construction progress and needs, avoiding difficulties or inconveniences in complex construction environments.

[0046] In addition to the combination of steel pipe piles and disc buckle brackets, the support system of the present invention can also be customized according to the different needs of the construction site. For example, in special cases, such as very soft ground conditions or extreme weather conditions, in addition to using steel pipe piles and disc buckle brackets, other ground reinforcement technologies can also be combined, such as using pile foundations or grouting reinforcement methods to enhance the bearing capacity and stability of the foundation. During the construction of the bracket, the steel pipe piles and disc buckle brackets can also be strengthened as needed, such as adding support structures or using larger bracket components to ensure that the bracket can withstand a larger construction load. Under special environmental conditions (such as high temperature, high humidity or corrosive environment), stainless steel, coatings or anti-corrosion materials can be used to make steel pipe piles and disc buckle brackets to extend their service life and improve corrosion resistance. In addition, in order to further improve the stability of the support system, a real-time monitoring device can be added during the construction process to monitor the stress and deformation of the bracket to ensure that potential problems are discovered and adjusted in time during the construction process. This monitoring device can be combined with an automated control system to achieve automated adjustment and optimize the stability of the bracket.

[0047] During the installation of the guy wire basket, the on-site bracket is used for direct assembly without high-altitude hoisting, thereby reducing the risk of construction. In the present invention, the installation of the guy wire basket is carried out by directly assembling the on-site bracket, avoiding the traditional high-altitude hoisting operation. This process first provides support by setting up a stable bracket system, and then assembles the guy wire basket on the bracket in steps. Unlike the traditional method, this method completely avoids high-altitude operations, making the construction process safer and more controllable. Specifically, during the installation process, the staff assembles the guy wire basket on the ground or at a low position, and completes the splicing of each module with the support of the bracket to ensure that the various parts of the basket are successfully installed according to the design requirements. At this time, the bracket provides sufficient stability and bearing capacity, which can bear the weight of each part of the guy wire basket, thereby avoiding the risk of high-altitude hoisting. During the entire installation process, all operations can be carried out within a controllable range, greatly reducing the danger caused by hoisting operations and improving work efficiency. By avoiding high-altitude hoisting operations, the working environment of construction personnel is greatly improved, thereby reducing the risk of safety accidents caused by high-altitude operations and ensuring the life safety of construction personnel. The on-site bracket assembly method allows the various components of the guying basket to be installed on the ground or at a lower height, reducing the complex operations and errors that may be encountered during the hoisting process, and improving installation accuracy and work efficiency. The complex operations brought by hoisting equipment and high-altitude operations are abandoned, making the construction process simpler and easier, especially in places with poor conditions or limited construction space, and can complete the installation work more flexibly and efficiently. The on-site bracket assembly method avoids equipment failures and hoisting errors that may occur during high-altitude hoisting, thereby improving the safety of the entire construction process, especially under complex climatic or geographical conditions.

[0048] In addition to direct assembly through on-site brackets, the present invention can also flexibly adjust the installation method according to the specific needs of different construction sites. For example, in some special projects, if the ground space is small or the construction space is limited, a modular design can be used to decompose the guying basket into multiple smaller modules, which are assembled one by one, thereby improving installation flexibility. In addition, for some high-temperature, high-humidity or corrosive gas environments, construction site brackets and assembly equipment can use corrosion-resistant materials or add protective measures to ensure the long-term stability and safety of the brackets. In some difficult construction projects, automated equipment, such as robotic assembly devices or automated control systems, can also be combined to further improve the efficiency and accuracy of assembly and reduce the need for manual intervention.

[0049] Steps S1 to S6 can be performed alternately between different construction sections, thereby improving the construction efficiency and the casting accuracy of the sections. In the present invention, the alternation of steps S1 to S6 is to improve the construction efficiency and ensure the accuracy of the casting of the sections. Normally, the construction steps are completed one by one in sequence, but in the present invention, by flexibly alternating different construction steps, the work between different construction sections can be carried out in parallel, avoiding the time waste caused by the construction of a single section. Specifically, when the steps of installing and tensioning the front support cable hanging basket of a certain construction section are carried out, the bracket erection, assembly and preparatory work of the cable hanging basket of other sections can also be carried out simultaneously. Through this alternating method, the continuity of the construction progress can be maintained, and the construction accuracy and quality of each section can be ensured. For example, after the steel pipe pile and Bailey frame bracket are erected in one section, the bracket erection work of the next section can be started immediately without waiting for the previous section to be completely completed. This efficient operation method can not only shorten the construction period of the entire project, but also ensure the accuracy of segment casting by preparing and completing some steps in advance. By alternating different construction steps, waiting time is reduced and the continuity of the work process is improved. Various construction tasks can be carried out in parallel, maximizing the use of construction resources and time, thereby improving the overall construction efficiency. The segment construction time is compressed, and the construction period of the overall project is greatly shortened, thereby reducing construction costs and improving the economic benefits of the project. By alternating the construction steps of different segments, not only can the duplication of work between segments be avoided, but also each segment can be accurately controlled at the right time, avoiding possible errors during separate construction, and ensuring the casting accuracy of each segment. Construction equipment and human resources can flow between multiple segments, improving the utilization efficiency of each resource and reducing resource waste.

[0050] In addition to alternating steps S1 to S6, the present invention can also flexibly adjust the alternating mode according to the needs of the specific construction site. For example, under complex geological conditions or special weather conditions, the order of each step can be appropriately adjusted to increase the overlap between the steps, thereby further optimizing the construction progress and segment accuracy. The alternating rhythm can also be dynamically adjusted according to the actual construction progress on site to ensure that each link can be flexibly adjusted according to the actual situation. In addition, in order to improve the controllability and accuracy of the construction, the construction progress of each segment can also be monitored and adjusted in real time in combination with the construction management software to ensure the accurate execution of the construction plan and to deal with possible problems in a timely manner. In some special cases, the alternating steps in the construction process can also be adjusted in combination with different technical means. For example, automated construction equipment, such as automated lifting equipment or robot assembly systems, is used to reduce manual intervention, improve the speed and accuracy of assembly, thereby further optimizing construction efficiency and segment accuracy.

[0051] Working process: First, a support system is set up at the construction site, including a combination of steel pipe piles and Bailey frames, to provide a stable foundation for the subsequent installation of the hanging basket. Then, after the initial segment is cast, the inclined cable is hung and tensioned to make it the front fulcrum of the hanging basket. After that, relying on the support set up on site, the modular assembly of the cable hanging basket system is completed, and the assembled hanging basket is installed to the main beam position of the bridge through the lifting equipment. Subsequently, the hanging construction of the subsequent segments is completed in sequence by moving the cable hanging basket system forward section by section. During the construction process, steps S1 to S6 can be performed alternately to improve the construction efficiency and segment casting accuracy, avoiding the time waste caused by the construction of a single segment. In addition, the erection height of the support and the installation design of the cable hanging basket match the weight and size of the segment to ensure the stability and safety of the entire construction process. Through this series of orderly and coordinated work steps, the entire construction process significantly improves work efficiency on the basis of ensuring safety and ensures high-precision construction results.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for assembling a large-tonnage front fulcrum guy rope hanging basket in situ using a bracket, characterized in that: The method comprises: S1. Set up scaffolding and cast sections at the construction site; S2, hang and tension the inclined cable to make it the front fulcrum of the hanging basket; S3. Assemble the guy rope hanging basket system in situ at the segment position to complete various processes of the segment; S4, move forward section by section through the guy wire hanging basket system, and complete the suspended pouring construction of subsequent sections in sequence; S5. The support adopts a combination of steel pipe pile Bailey frame and disc buckle support as the support and erection system; S6. Use the scaffolding already set up on site to directly assemble the large-tonnage guy-cable hanging basket on site, reducing the lifting height of the hanging basket.

2. The method for assembling a large-tonnage front fulcrum guy rope hanging basket in situ by using a bracket according to claim 1, characterized in that: The steps of erecting the support include: adopting a structural form of a combination of steel pipe piles and Bailey frames to form a stable supporting foundation.

3. The method for assembling a large-tonnage front fulcrum guy-cable hanging basket in situ by using a bracket according to claim 1, characterized in that: The hanging and tensioning steps of the inclined cable include: after casting the segment, tensioning the inclined cable to a predetermined tensioning force by special equipment.

4. The method for assembling a large-tonnage front fulcrum guy rope hanging basket in situ by using a bracket according to claim 1, characterized in that: The assembly steps of the guy rope hanging basket system include: after completing the modular assembly of the guy rope hanging basket on the ground, installing it to the main beam position of the bridge using lifting equipment.

5. The method for assembling a large-tonnage front fulcrum guy-cable hanging basket in situ by using a bracket according to claim 1, characterized in that: When the guy rope hanging basket system moves forward section by section, an automatic continuous lifting system is used to lift and move the hanging basket.

6. The method for assembling a large-tonnage front fulcrum guy-cable hanging basket in situ by using a bracket according to claim 1, characterized in that: The height of the support is matched with the weight and size of the segment to ensure stability and safety during the construction process.

7. The method for assembling a large-tonnage front fulcrum guy-cable hanging basket in situ by using a bracket according to claim 1, characterized in that: The guy wire hanging basket can flexibly adjust the horizontal posture of the hanging basket through the tensioning adjustment function of the hanging basket system to ensure construction accuracy.

8. The method for assembling a large-tonnage front fulcrum guy-cable hanging basket in situ by using a bracket according to claim 1, characterized in that: In the steel pipe pile Bailey frame and the buckle bracket combined structure, the steel pipe pile is used for ground fixation, while the buckle bracket provides additional stable support.

9. The method for assembling a large-tonnage front fulcrum guy rope hanging basket in situ by using a bracket according to claim 1, characterized in that: During the installation of the guy wire hanging basket, on-site brackets are used for direct assembly without the need for high-altitude hoisting, thereby reducing construction risks.

10. The method for assembling a large-tonnage front fulcrum guy-cable hanging basket in situ by using a bracket according to claim 1, characterized in that: The steps S1 to S6 can be performed alternately between different construction sections, thereby improving the construction efficiency and the casting accuracy of the sections.

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