Wide steel-concrete composite beam front fulcrum guy cable hanging basket device and construction method

Abstract

The invention discloses a wide-width steel-concrete composite beam front fulcrum guy cable hanging basket device and a construction method, and relates to the technical field of bridge construction, the wide-width steel-concrete composite beam front fulcrum guy cable hanging basket device comprises a main longitudinal beam, C-shaped legs arranged on the two sides of the main longitudinal beam, an arc-shaped head arranged at the front end of the main longitudinal beam, and a tensioning assembly connected with the arc-shaped head and used for adjusting the angle during tensioning through a stay cable, the main anchor assembly is connected with the C-shaped leg and used for adjusting the tensioning force of the front fulcrum stay cable, and the main anchor assembly is connected with the C-shaped leg and can drive a sliding shoe of the C-shaped leg to fall down; according to the wide steel-concrete composite beam front fulcrum guy cable hanging basket device and the construction method, smooth construction can be achieved under the complex structure condition, good adaptability and wide application prospects are achieved, and the construction efficiency is improved by accurately controlling the working states of all systems (such as adjusting the force value through an intelligent control jack and a tensioning system). And constructors can quickly complete various operations, so that the construction efficiency and the operation convenience are greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction, and in particular to a front support cable hanging basket device for a wide steel-concrete composite beam and a construction method. Background Art

[0002] In the construction of large-span bridges, the front-support cable hanging basket is a commonly used construction method. It uses traction to gradually splice the bridge structure and is suitable for complex beam structures, especially in complex force conditions. However, the traditional front-support cable hanging basket construction method still faces several technical difficulties under certain special structural configurations, especially for the construction of prestressed concrete longitudinal beams and I-shaped steel beams and bridge deck composite structure main beams without external flanges on both sides of the beam ribs.

[0003] At present, the main beams of bridges adopt a combination of concrete and steel structures to meet the requirements of large spans and high loads. However, the main beam structure formed by the combination of concrete longitudinal beams and I-beam cross beams, especially in the beam rib design without outer flanges, has the following technical difficulties: due to the lack of outer flanges on the beam ribs on both sides in the structural design, the connection between the longitudinal beam and the cross beam is not rigid enough during construction, resulting in uneven force on the combined main beam, affecting the stability and accuracy during construction, especially in the hanging basket construction operation; when the prestressed concrete longitudinal beam is combined with the steel structure cross beam, due to the uneven distribution and transfer effect of the prestress, local stress concentration and non-ideal deformation of the material are prone to occur during construction, making it difficult to achieve uniform force, thereby affecting the bearing capacity and stability of the bridge; there are often large differences in the connection design between the steel structure and the concrete structure, especially under temperature and humidity changes or long-term loads, the strain of concrete and steel is inconsistent, resulting in fatigue damage and cracks at the connection parts, further exacerbating the construction difficulty; in the front support cable hanging basket construction, since the deformation of the structure is difficult to accurately control, especially in complex combined structures, the deformation often affects the accuracy of the entire construction process, especially in the main beam splicing and hanging basket hoisting stages. Summary of the invention

[0004] The purpose of the present invention is to provide a front support cable hanging basket device and a construction method for a wide steel-concrete composite beam, which can effectively solve the problems of mechanical unevenness, deformation control and connection stability of the composite main beam of steel beams and concrete beams during the construction process, so as to improve construction efficiency and structural safety.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a front support cable hanging basket device for a wide steel-concrete composite beam, comprising:

[0006] A main longitudinal beam, wherein C-shaped legs are provided on both sides of the main longitudinal beam;

[0007] An arc-shaped head is arranged at the front end of the main longitudinal beam;

[0008] A tensioning assembly is connected to the arc head and is used to adjust the angle when the inclined cable is tensioned, and is used to adjust the tensioning force of the inclined cable at the front support point;

[0009] The main anchor assembly is connected to the C-shaped leg, and the main anchor assembly can drive the C-shaped leg sliding shoe to fall.

[0010] Preferably, the main anchor assembly comprises a jack, a main anchor beam and precision-rolled threaded steel bars, and the precision-rolled threaded steel bars are connected to the C-shaped legs.

[0011] Preferably, the main anchor assembly also includes a monitoring device, which can detect the stress condition of the fine-rolled threaded steel bar in real time, and automatically adjust the pressure of the jack according to the monitoring result to control the falling speed of the C-leg sliding shoe.

[0012] Preferably, the tensioning assembly comprises a plurality of tensioning cables.

[0013] Preferably, the C-shaped leg sliding shoe is connected to a walking track via a rolling bearing.

[0014] Preferably, the precision-rolled threaded steel bar is fixed to the main longitudinal beam via a connecting piece.

[0015] Preferably, a sensor array is provided between the arc head and the tensioning assembly for real-time monitoring of tensioning force and angle changes.

[0016] A construction method for a front fulcrum cable hanging basket of a wide steel-concrete composite beam, using the front fulcrum cable hanging basket device of the wide steel-concrete composite beam, the method comprising:

[0017] S1. Set the main longitudinal beam and C-shaped legs, and fix the arc head to the front end of the main longitudinal beam;

[0018] S2, install the tensioning assembly and connect it to the arc head, and adjust the tensioning force of the inclined cable through the tensioning assembly so that the hanging basket is tensioned according to the designed angle;

[0019] S3. Start the main anchor assembly, and drive the C-shaped leg sliding shoe to fall to the construction track through the jack and the fine-rolled threaded steel bar to ensure the stability of the hanging basket;

[0020] S4. During the construction process, use the tensioning assembly to adjust the tensioning force of the inclined cable and monitor the stress changes of the structure in real time;

[0021] S5. When the hanging basket is completed and moves to the next construction section, the walking system is started, and the walking track and C-shaped leg sliding shoes are used for sliding to ensure that the hanging basket moves smoothly on the main beam surface;

[0022] S6. After the basket completes the construction of each section, adjust the rear anchor system and thrust anchor to ensure accurate positioning and support of the basket.

[0023] During the construction process, the tensioning assembly monitors the tensioning force and angle changes of the inclined cable through a real-time sensor array, and feeds the data back to the control system to automatically adjust the tensioning force and angle to ensure construction accuracy.

[0024] The rear anchor system and thrust anchor are connected by an adjustable screw rod and are fine-tuned after each basket movement to ensure the precise positioning of the basket in each construction section.

[0025] It can be seen from the above technical solution that the present invention has the following beneficial effects:

[0026] The front support cable hanging basket device and construction method of the wide-width steel-concrete composite beam adopts a tensioning system to adjust the tensioning force of the inclined cable in real time. The present invention can accurately control the stress state of the hanging basket, ensure that the tensioning angle and force value of the hanging basket are optimized during the suspended casting construction process, greatly improve the construction accuracy and efficiency, and can effectively balance the vertical and horizontal force components generated during the tensioning process of the inclined cable, reduce the risk of structural deformation, and ensure construction safety. Moreover, the adjustment of the system after each construction section ensures the stability and safety of the hanging basket, reduces the risk in the construction process, ensures the synchronous movement of the left and right sides of the hanging basket, avoids the construction offset problem caused by asymmetric loading and uneven displacement in traditional construction methods, thereby greatly improving the synchronization and stability of the construction. The hanging basket equipment designed by the present invention can accurately adjust various systems (such as tensioning system, walking system, main anchor system, etc.), and does not require excessive manual intervention and repeated adjustments. The construction time is greatly shortened, saving manpower and material costs, and significantly improving the economic benefits of construction. The cable hanging basket device and construction method of the present invention are suitable for the suspended casting construction of steel-concrete composite beam cable-stayed bridges, especially for prestressed concrete longitudinal beams and I-beam steel beam composite structures without external flanges on both sides of the beam ribs. It can be smoothly constructed under complex structural conditions, has good adaptability and broad application prospects, and can quickly complete various operations by accurately controlling the working status of each system (such as adjusting the force value through intelligently controlled jacks and tensioning systems), which greatly improves the construction efficiency and convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the plan layout of the guy rope hanging basket of the present invention;

[0028] Figure 2 It is a schematic diagram of the side arrangement of the guy rope hanging basket of the present invention;

[0029] Figure 3 This is a schematic diagram of the front layout of the guy rope hanging basket of the present invention;

[0030] Figure 4 It is a schematic diagram of the layout of the guy wire hanging basket anchoring system of the present invention;

[0031] Figure 5 The figure is a flow chart of the method of the present invention.

[0032] In the figure: 1. main longitudinal beam; 2. rear cross beam; 3. front cross beam; 4. longitudinal beam connecting cross beam; 5. longitudinal beam connecting beam; 6. secondary longitudinal beam; 7. C-shaped leg; 8. arc-shaped head; 9. walking and rolling wheel set; 10. walking system; 11. tensioning system; 12. walking track; 13. main anchor system; 14. anti-top system; 15. rear anchor system; 16. thrust anchor; 17. thrust base; 18. thrust block. DETAILED DESCRIPTION

[0033] 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.

[0034] like Figure 1-Figure 4 As shown, a front fulcrum cable hanging basket device for a wide steel-concrete composite beam comprises a main longitudinal beam 1, wherein C-shaped legs 7 are arranged on both sides of the main longitudinal beam 1; an arc head 8 is arranged at the front end of the main longitudinal beam 1; a tensioning assembly 11 is connected to the arc head 8, and is used to adjust the angle when the inclined cable is tensioned, and is used to adjust the tensioning force of the inclined cable of the front fulcrum; a main anchor assembly 13 is connected to the C-shaped leg 7, and the main anchor assembly 13 can drive the sliding shoe of the C-shaped leg 7 to fall. This device mainly completes the traction and adjustment of the front fulcrum during the construction of the steel-concrete composite beam through the cooperation between the main longitudinal beam 1, the C-shaped leg 7, the arc head 8, the tensioning assembly 11 and the main anchor assembly 13. First, the main longitudinal beam 1 bears the load of the entire structure and is fixed in the construction area. The C-shaped legs 7 are arranged on both sides of the main longitudinal beam 1, play a supporting role, and cooperate with the sliding shoe to adjust the position. The arc head 8 is located at the front end of the main longitudinal beam 1, and can adjust the angle through the tensioning assembly 11 as needed, thereby changing the traction direction. The tensioning force is applied by the tensioning assembly 11, and the tensioning angle and force of the inclined cable are adjusted to ensure that the fulcrum position of the steel-concrete composite beam during construction is consistent with the predetermined design. The main anchor assembly 13 is connected to the C-shaped leg 7, and the tensioning force of the inclined cable at the front fulcrum is accurately controlled by the falling of the sliding shoe. The device can effectively improve the fulcrum accuracy and mechanical performance stability during the construction of wide steel-concrete composite beams. Through the adjustment of the tensioning assembly 11, the tensioning force and angle of the inclined cable can be accurately controlled, thereby optimizing the force distribution of the structure and reducing errors in construction. At the same time, the design of the C-shaped leg 7 and the arc head 8 enables the traction system to adapt to different construction conditions, ensuring the efficiency and safety of the construction process. In addition, the main anchor assembly 13 can drive the sliding shoe to fall, ensuring a reasonable distribution of tension, thereby improving the accuracy and stability of construction operations.

[0035] In this embodiment, the tensioning assembly 11 can use a hydraulic system, an electric motor or a mechanical adjustment mechanism to achieve precise control of the angle and tensioning force. Under different engineering requirements, the material of the main longitudinal beam 1 can be selected from steel, steel-mixed materials or other high-strength composite materials to improve the durability and strength of the structure. In addition, the arc head 8 can be designed as an adjustable structure to meet the traction requirements under different construction conditions by adjusting different angles. The design of the C-shaped leg 7 and the sliding shoe can also be appropriately improved according to the special needs of the construction site to improve the adaptability and flexibility of the device.

[0036] The main anchor assembly 13 includes a jack 14, a main anchor beam and a finely rolled threaded steel bar, and the finely rolled threaded steel bar is connected to the C-shaped leg 7. In this embodiment, the main anchor assembly 13 is composed of a jack 14, a main anchor beam and a finely rolled threaded steel bar. The jack 14 provides tension through hydraulic action, pushing the main anchor beam and the finely rolled threaded steel bar to work together, and the finely rolled threaded steel bar is connected to the C-shaped leg 7, ensuring the stability and accuracy of the entire traction system. Specifically, the function of the jack 14 is to provide an outward traction force, and the main anchor beam distributes the traction force evenly to the finely rolled threaded steel bar through force transmission. The finely rolled threaded steel bar is connected to the C-shaped leg 7 through its high-strength characteristics, further transmitting the tension force, ensuring the stability of the C-shaped leg 7, and causing the sliding shoe to fall, thereby adjusting the tension force of the front fulcrum inclined cable. This embodiment not only increases the bearing capacity of the main anchor assembly 13, but also improves the adjustment accuracy of the entire device by introducing a combination of the jack 14, the main anchor beam and the finely rolled threaded steel bar. The jack 14 can provide a wide range of tension adjustment to ensure that the tension of the cable can be finely regulated as needed. The high strength and superior connection performance of the fine-rolled threaded steel make the connection between the main anchor assembly and the C-leg 7 more reliable, thereby improving the stability and accuracy of the traction system and reducing the potential risks caused by uneven tension or inaccurate adjustment during construction. In other embodiments, the jack 14 can adopt an electric or hydraulic control system to adapt to different construction requirements. The material of the main anchor beam and the fine-rolled threaded steel can also be optimized according to the specific conditions of the construction site, such as using higher-strength alloy steel or composite materials to further improve the tensile strength and durability of the system. In addition, the connection method of the fine-rolled threaded steel can also be improved by welding or bolting, so as to make more flexible adjustments according to engineering requirements.

[0037] The main anchor assembly 13 also includes a monitoring device, which can detect the stress of the finely rolled threaded steel in real time, and automatically adjust the pressure of the jack 14 according to the monitoring results to control the falling speed of the C-leg 7 sliding shoe. In this embodiment, in addition to the jack 14, the main anchor beam and the finely rolled threaded steel, the main anchor assembly 13 also adds a monitoring device for real-time monitoring of the stress of the finely rolled threaded steel. The monitoring device obtains the stress data of the finely rolled threaded steel in real time through a force sensor or strain gauge installed on the finely rolled threaded steel, and feeds back the monitoring results to the control system. According to the monitored stress, the control system automatically adjusts the pressure of the jack 14 to accurately control the magnitude of the traction force. At the same time, the monitoring device can also automatically adjust the falling speed of the C-leg 7 sliding shoe according to the change of force to ensure that the tension and angle of the inclined cable are always kept within the design range, thereby optimizing the construction process of the steel-concrete composite beam, avoiding excessive or too small tension, and ensuring structural safety. By introducing the monitoring device, this embodiment realizes automated mechanical monitoring and adjustment. The monitoring device can provide real-time feedback on the stress changes of the fine-rolled threaded steel bar, ensure that the pressure adjustment of the jack 14 is accurate, so that the tension of the traction system is always kept within an appropriate range, avoiding errors and uncertainties in manual operation. In addition, the monitoring device can also automatically adjust the falling speed of the C-shaped leg 7 sliding shoe, further improving the accuracy and safety of the construction process. Overall, the intelligence of the device improves construction efficiency and accuracy, reduces potential risks, and helps to improve the quality and safety of the project. In other embodiments, the monitoring device can use a more accurate force sensor or wireless transmission technology to make the data acquisition and control adjustment process more flexible and real-time. At the same time, the monitoring device can also be connected to the central control system to remotely monitor the construction status, further improving the operational safety of the construction site. In addition, the adjustment system of the jack 14 can be used in conjunction with other automated adjustment equipment (such as a hydraulic control system) to achieve more accurate adjustment and control according to different engineering requirements and construction conditions.

[0038] The tensioning assembly 11 includes a plurality of tensioning cables. In this embodiment, the tensioning assembly 11 is composed of a plurality of tensioning cables, and the configuration of the plurality of tensioning cables enables the traction force to be more evenly distributed to the entire front support traction system. During the construction process, these tensioning cables are tensioned by respective tensioning devices, and by adjusting the tensioning force of each tensioning cable, the traction force can be precisely controlled within the required design range. The design of the plurality of tensioning cables can effectively share the tensioning load between the main longitudinal beam and the C-shaped leg, thereby optimizing the distribution of the traction force and improving the stability and compressive resistance of the system. The tensioning force of each tensioning cable can be adjusted separately by the tensioning device to ensure that the entire structure maintains the optimal stress state during the construction process, and avoids structural deformation or stress concentration caused by uneven tensioning. By adopting a plurality of tensioning cables, the design can effectively share the traction load, avoid overloading or failure of a single tensioning cable, and improve the safety and stability of the structure. In addition, the plurality of tensioning cables can simultaneously apply tensioning force at different positions, which can not only improve the overall bearing capacity of the traction system, but also more finely adjust the traction force distribution of the front support. Compared with the traditional single-cable tensioning method, this embodiment improves the overall performance of the structure through the coordinated work of multiple tensioning cables, reduces construction errors caused by uneven traction, and ensures the accuracy and stability of the construction process. In other embodiments, multiple tensioning cables can be configured in different arrangements, such as distributed on both sides of the main longitudinal beam or evenly distributed in the front support area to meet different construction needs. At the same time, the material of the tensioning cable can be selected according to the specific construction environment and engineering requirements, such as using different materials such as steel wire ropes and synthetic fiber cables to improve tensile strength and durability. In addition, the tensioning force of each tensioning cable can be independently adjusted by hydraulic, mechanical or electric means to meet the mechanical requirements under different working conditions.

[0039] The sliding shoe of the C-shaped leg 7 is connected to the running track 12 through a rolling bearing. In this embodiment, the sliding shoe of the C-shaped leg 7 is connected to the running track 12 through a rolling bearing, so that the C-shaped leg 7 can slide steadily and smoothly along the track 12. The design of the rolling bearing can reduce the friction between the sliding shoe and the track, reduce the sliding resistance, and improve the movement efficiency and stability of the overall structure. The sliding of the sliding shoe can not only realize the precise adjustment of the position of the C-shaped leg 7 during construction, but also ensure that the entire traction system does not have displacement deviation when applying tension. By controlling the sliding speed of the sliding shoe of the C-shaped leg 7 along the track 12, the distribution of the traction force can be accurately adjusted, thereby ensuring the precise control of the tension force of the front support cable, and improving the construction accuracy and stability of the structure. By adopting the design of connecting the running track 12 with a rolling bearing, the friction can be greatly reduced, and the movement efficiency and accuracy of the sliding shoe of the C-shaped leg 7 can be improved. This design not only improves the stability of the traction system, avoids the wear and jamming of components caused by excessive friction, but also effectively improves the flexibility and accuracy of adjusting the position during construction. Due to the smooth sliding of the sliding shoe, the entire traction system can maintain a high working efficiency during the construction process, reduce mechanical loss, and improve the long-term stability of the system. In addition, the use of the track 12 and the rolling bearing allows the C-shaped leg 7 to maintain smooth sliding under load, avoiding structural deformation or uneven force caused by uneven movement.

[0040] In other embodiments, the running track 12 can be designed with different shapes or materials, such as a straight track, a curved track or a composite track, according to the specific needs of the construction site, to adapt to different construction environments. The type of rolling bearing can also be selected according to the actual working conditions, such as using deep groove ball bearings, needle bearings, etc., to provide a lower friction coefficient and a longer service life. In addition, the installation method of the track 12 can be customized according to the engineering requirements, such as using an adjustable support frame to adapt to construction requirements of different heights or angles.

[0041] The fine-rolled threaded steel bar is fixed to the main longitudinal beam 1 by a connecting piece. In this embodiment, the fine-rolled threaded steel bar is fixed to the main longitudinal beam 1 by a connecting piece. The design of the connecting piece ensures that the fine-rolled threaded steel bar has a strong connection strength with the main longitudinal beam 1 to ensure the stability and safety of the traction system. The fine-rolled threaded steel bar can effectively carry and transmit the tension force through the fixed connection with the main longitudinal beam 1, ensuring the force balance during the construction process of the entire steel-concrete composite beam. During the construction process, the connecting piece plays a role of fixing and supporting, avoiding the position displacement or failure of the fine-rolled threaded steel bar when it is stressed, and ensuring the efficient operation of the front support traction system. Through the precise connection method, the connecting piece can provide stable mechanical support to ensure that the force transmission between each component will not loosen or dislocate due to loose connection. Through the fixed connection between the fine-rolled threaded steel bar and the main longitudinal beam 1, the stability of the entire structure can be greatly enhanced, ensuring that the tension force can be efficiently and evenly transmitted to each part of the traction system. The application of the connecting piece improves the reliability of the connection, avoids the problem of unbalanced force caused by loose or uneven connection, thereby improving the overall performance and construction accuracy of the structure. In addition, the design simplifies the construction process of the structure, making installation and adjustment more convenient and quick, reducing the difficulty and error rate of construction. The high strength and stability of the connectors ensure the long-term durability and service life of the structure.

[0042] In other embodiments, the connector can be customized according to different construction conditions and the specifications of the fine-rolled threaded steel bars, using different materials, such as high-strength alloy steel or stainless steel, to improve corrosion resistance and tensile strength. In addition, the installation method of the connector can be optimized according to engineering requirements, such as by welding, bolting, etc., to ensure that the connection is more firm and reliable. In certain cases, the connector can also be designed to be adjustable, so that the connection force between the fine-rolled threaded steel bars and the main longitudinal beam 1 can be flexibly adjusted at different construction stages to adapt to changing construction needs.

[0043] A sensor array is provided between the arc head 8 and the tensioning assembly 11 for real-time monitoring of tensioning force and angle changes. In this embodiment, a sensor array is provided between the arc head 8 and the tensioning assembly 11. The sensor array is composed of a plurality of sensors and can monitor the changes in tensioning force and angle in real time. The sensor array includes a strain sensor and an angle sensor, which are respectively used to measure the force conditions and position changes between the arc head 8 and the tensioning assembly 11. During the tensioning process, the sensor will continuously detect the changes in traction force and feed back the data to the central control system to monitor the distribution of tensioning force and the changes in angle in real time. Through precise sensor feedback, the system can adjust the tensioning force of the tensioning assembly 11 according to real-time data to ensure that the front support traction system always remains within the set design parameter range, avoiding excessive or insufficient tension from having an adverse effect on the structure. The application of the sensor array makes the monitoring of tensioning force and angle more accurate and real-time, effectively avoiding delays and errors in the manual monitoring process. Through the data provided by the sensor, the control system can make adjustments quickly and automatically adjust the working state of the tensioning assembly 11 to ensure the stability and accuracy of traction force and angle. The real-time monitoring and adjustment function improves the overall construction accuracy, ensures that each step in the tensioning process can maintain the best state, and reduces structural problems caused by uneven tensioning force or unreasonable angle changes. This design not only improves the efficiency of engineering construction, but also improves the safety and reliability of the project.

[0044] In other embodiments, the sensor array can use wireless transmission technology to transmit the monitoring data to the central control system in real time, thereby facilitating remote monitoring and management of the construction site. In addition, the type and quantity of the sensor array can be adjusted according to the specific needs of the construction site, such as adding more strain sensors or using higher-precision angle sensors to improve the accuracy and range of monitoring. For complex or special construction environments, the sensor array can also be designed with special materials that are waterproof, dustproof, and corrosion-resistant to ensure its long-term stable operation. Under extreme conditions, the sensor array can also be used in conjunction with an automatic early warning system. When the tension or angle exceeds the safe range, the system will automatically sound an alarm and take corresponding safety measures.

[0045] like Figure 5 As shown, a construction method of a front support cable hanging basket of a wide steel-concrete composite beam is also provided, and the method comprises:

[0046] Step S1: Firstly, the main longitudinal beam 1 and the C-shaped leg 7 are arranged, and the arc head 8 is fixed to the front end of the main longitudinal beam 1 to provide a stable support platform for subsequent tensioning and construction operations.

[0047] Step S2: Install the tensioning assembly 11 on the arc head 8, use the tensioning assembly to adjust the tensioning force of the inclined cable, and ensure that the hanging basket is adjusted according to the design requirements by accurately controlling the tensioning angle of the hanging basket.

[0048] Step S3: Start the main anchor assembly 13, and use the combination of the jack 14 and the fine-rolled threaded steel to drive the sliding shoe of the C-shaped leg 7 down to the construction track to ensure the stability of the hanging basket and prepare for subsequent traction and adjustment work.

[0049] Step S4: During the construction process, the tensioning force of the cable stays is adjusted continuously using the tensioning assembly 11, and the stress condition of the structure is monitored through a real-time monitoring system (such as a sensor array) to ensure that each construction stage meets safety standards.

[0050] Step S5: When the hanging basket needs to move to the next construction section, start the walking system 10, and use the sliding shoes of the C-shaped legs 7 to slide along the walking track to ensure the smooth movement of the hanging basket on the main beam surface to avoid construction errors or instability caused by uneven sliding.

[0051] Step S6: After the construction of each section is completed, the rear anchor system 15 and the thrust anchor 16 are adjusted to ensure that the hanging basket can be accurately positioned and fully supported, in preparation for the construction of subsequent sections.

[0052] The construction method ensures the construction quality and efficiency of wide steel-concrete composite beams by adopting a series of precise steps. In step S1, by installing the main longitudinal beam 1 and the C-shaped leg 7, and fixing the arc head 8 to the front end of the main longitudinal beam 1, the foundation for the stability of the entire hanging basket device is laid. Then in step S2, by installing the tensioning assembly 11 and adjusting the tensioning force of the inclined cable, the hanging basket is adjusted according to the design angle to ensure the correct positioning of the hanging basket during the construction process. In step S3, the main anchor assembly 13 is started, combined with the jack 14 and the fine-rolled threaded steel, the sliding shoe of the C-shaped leg 7 is driven to fall smoothly to the construction track to ensure the stability of the hanging basket and prepare for subsequent work. In step S4, the tensioning assembly 11 is used to adjust the tensioning force of the inclined cable in real time, and the force is monitored through the sensor array to ensure that the structure continues to be subjected to appropriate force during the entire construction process. As the construction progresses, step S5 starts the walking system 10, and the sliding shoe of the C-shaped leg 7 slides along the walking track to ensure that the hanging basket can move smoothly to the next construction section. Finally, in step S6, by adjusting the rear anchor system 15 and the thrust anchor 16, ensure that the hanging basket is accurately positioned and provides stable support after each construction section. This construction method significantly improves the accuracy and efficiency of the hanging basket construction through a series of orderly steps. First, by adopting precise tensioning control and real-time monitoring technology, by adjusting the tensioning force of the tensioning assembly 11, the hanging basket can maintain a precise angle and stability in each construction section, avoiding deviations and structural instability caused by insufficient or excessive tensioning force. Secondly, by combining the main anchor assembly 13, the jack 14 and the fine-rolled threaded steel, the falling speed of the sliding shoe of the C-shaped leg 7 can be efficiently controlled to ensure that the hanging basket moves stably to the construction track, avoiding structural imbalance or safety problems that may be caused by falling too quickly. During the construction process, by real-time monitoring and adjusting the tensioning force of the inclined cable, not only the force balance of the entire steel-concrete composite beam is guaranteed, but also the safety of the construction process is improved. Finally, the design of the walking system 10 ensures the smooth movement of the hanging basket between the construction sections, and through the precise adjustment of the rear anchor system 15 and the thrust anchor 16, the stable support of the hanging basket after each section of construction is ensured, further improving the efficiency and safety of the construction.

[0053] During the construction process, the tensioning assembly 11 monitors the tensioning force and angle changes of the inclined cable through a real-time sensor array, and feeds back the data to the control system, automatically adjusts the tensioning force and angle, and ensures the construction accuracy. In this embodiment, the tensioning assembly 11 continuously monitors the tensioning force and angle changes of the inclined cable by working in conjunction with the real-time sensor array. The sensor array includes strain sensors, angle sensors, etc., which obtain the force and angle data of the hanging basket system in real time and transmit these data to the central control system. The central control system automatically adjusts the tensioning force and angle of the tensioning assembly 11 according to the received data, so that the hanging basket is always in the design state. This closed-loop feedback mechanism ensures that the change of tensioning force can be accurately controlled at each stage of the construction process, avoiding the problem of uneven tensioning force or inaccurate angle. As the construction progresses, the control system makes corresponding adjustments based on the real-time feedback data, thereby ensuring the accuracy and stability of the structure during the construction process. Through the monitoring of the real-time sensor array, the tensioning force and angle changes during the construction process can be accurately tracked and adjusted. This automated control greatly improves the construction accuracy, reduces the error of manual intervention, and keeps the hanging basket in the best working state during the construction process. Real-time monitoring by the sensor array not only enhances the accuracy and stability of construction, but also effectively prevents structural problems caused by uneven tension or excessive angle changes, thereby improving construction safety. In addition, this automatic adjustment mechanism can greatly improve construction efficiency, shorten construction cycles, reduce risks and errors in human operations, and ensure that the project proceeds smoothly as planned.

[0054] In other embodiments, the type of sensor array can be adjusted according to specific needs, such as adding more accurate pressure sensors or using more sensitive angle sensors to improve the accuracy of monitoring. At the same time, the central control system can set up a multi-level early warning mechanism to deal with situations where the tension or angle exceeds the preset range, and make timely adjustments and issue warnings to prevent potential structural safety hazards. The integration of the sensor array and the control system can be further optimized, and the monitoring data can be fed back to the operators at the construction site or the remote management platform in real time through wireless transmission, thereby improving the convenience and response speed of management. In extreme weather or special environments, the sensor array can also be designed with waterproof, dustproof, corrosion-resistant and other characteristics to ensure its long-term stable operation.

[0055] The rear anchor system 15 and the thrust anchor 16 are connected by an adjustable screw rod, and fine-tuned after each basket travels to ensure the precise positioning of the basket in each construction section. In this embodiment, the rear anchor system 15 and the thrust anchor 16 are connected by an adjustable screw rod. Each time the basket completes a section of construction and is ready to travel to the next section, the operator will fine-tune the rear anchor system 15 and the thrust anchor 16. The screw rod connection allows the position of the rear anchor system and the thrust anchor to be adjusted by rotating the screw rod to ensure the positioning accuracy of the basket in each construction section. By fine-tuning the screw rod, the position change of the basket can be carefully controlled to ensure that the basket is always accurately positioned according to the design requirements throughout the construction process, and to prevent construction errors caused by basket offset. This fine-tuning process is a high-precision adjustment step, which ensures the stability of the rear anchor system and the thrust anchor, and provides reliable support for construction. The design of the adjustable screw rod enables the rear anchor system 15 and the thrust anchor 16 to be accurately fine-tuned after each basket travel to ensure the precise positioning of the basket. This fine-tuning method not only improves the construction accuracy of the hanging basket system and avoids construction errors caused by the position deviation of the hanging basket, but also ensures that each section of construction can maintain the stability and safety required by the design. Through screw fine-tuning, the rear anchor system 15 and the thrust anchor 16 can be appropriately adjusted according to actual needs at different construction stages, greatly improving the flexibility and controllability of the construction. This design can also reduce rework caused by position errors, shorten the construction period, improve construction efficiency and quality, and further optimize the management and execution of the construction process.

[0056] In other embodiments, the adjustable screw can be used in conjunction with an electric drive device to automatically perform fine adjustments. This automated fine adjustment can be monitored and adjusted by a central control system, allowing for more precise and efficient adjustment operations, particularly for large or complex construction projects. In special cases, such as high temperatures or harsh environments, the material and surface treatment of the screw can be improved based on environmental requirements to ensure that it maintains stable adjustment performance during long-term use. In addition, the screw connection can also be combined with a sensor system to monitor the position changes of the rear anchor system and thrust anchor in real time, and make further adjustments based on data feedback to ensure that the basket is always in the best working position.

[0057] Working process: This patent includes a main longitudinal beam 1, a rear cross beam 2, a front cross beam 3, a longitudinal beam connecting cross beam 4, a longitudinal beam connecting beam 5, and a secondary longitudinal beam 6. In the construction process of the wide steel-concrete composite beam integrated front fulcrum cable hanging basket bearing platform, the main longitudinal beam 1 is first set and the C-shaped legs 7 are installed on both sides of the main longitudinal beam. The front end of the main longitudinal beam connects the arc head 8 with the tensioning system 11 through a fixed connection to form a preliminary structural frame. During the construction process, the arc head 8 and the tensioning system 11 are used in conjunction to adjust the tensioning force of the front fulcrum inclined cable hanging cable, and adjust it according to the angle of the inclined cable to ensure that the hanging basket remains stable. When the hanging basket needs to fall, the inclined cable anchor point is transferred from the front end of the hanging basket to the bottom of the beam, and then the tensioning system 11 is released. At the same time, the fine-rolled threaded steel of the rear anchor system 15 and the thrust anchor 16 is released, and the thrust base 18 is lowered to the hanging basket longitudinal beam, and the thrust block 18 is also lowered to the bottom of the beam tooth block and the inclined cable. The 250t jack of the main anchor system 13 is used in conjunction with the main anchor beam and the finely rolled threaded steel bar to gradually drop the sliding shoe of the C-shaped leg 7 of the hanging basket onto the walking track 12 on the beam surface, and release the finely rolled threaded steel bar of the main anchor system 13. During the walking stage of the hanging basket, the sliding shoe of the C-shaped leg 7 is connected to the jack pin of the walking system 10, and the rear of the jack of the walking system 10 is fixed to the track with the longitudinal displacement jacking mechanism. The track is anchored on the main beam surface with finely rolled threaded steel bar, and the walking reverse roller group 9 contacts the bottom of the beam. By starting the control pump, the jacks of the left and right walking systems 10 push the sliding shoe of the C-shaped leg 7 of the hanging basket forward and successfully walk to the next section construction position. When the hanging basket is lifted, the finely rolled threaded steel bar of the main anchor system 13 is installed, and the 250t jack of the main anchor system 13 is used in conjunction with the main anchor beam and the finely rolled threaded steel bar to gradually lift the hanging basket, and finally make the sliding shoe of the C-shaped leg 7 detach from the walking track 12. Next, the finely rolled threaded steel bars of the rear anchor system 15 and the thrust anchor 17 are installed, and the thrust base 17 and the thrust block 18 are installed to the corresponding positions. During the use of the hanging basket, the tensioning system 11 is first installed, and the anti-top system 14 is installed in front of the cast beam section. Then the segmental inclined cables are hung and tensioned, and the anchor point of the inclined cables is transferred from the bottom of the beam to the front end of the hanging basket to ensure that the hanging basket operates stably during the construction process and meets the design requirements. The entire working process achieves accurate positioning and smooth construction of the hanging basket through precise adjustment and system control, ensuring that the hanging construction process of the wide steel-concrete composite beam is efficient, safe and accurate.

[0058] 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 front support cable hanging basket device for a wide steel-concrete composite beam, characterized in that: include: A main longitudinal beam (1), wherein C-shaped legs (7) are arranged on both sides of the main longitudinal beam 1); An arc-shaped head (8) is arranged at the front end of the main longitudinal beam (1); A tensioning assembly (11) connected to the arc-shaped head (8) is used to adjust the angle when the inclined cable is tensioned, and is used to adjust the tensioning force of the inclined cable at the front support point; The main anchor assembly (13) is connected to the C-shaped leg (7), and the main anchor assembly (13) can drive the sliding shoe of the C-shaped leg (7) to fall.

2. The front support cable hanging basket device for a wide steel-concrete composite beam according to claim 1 is characterized in that: The main anchor assembly (13) comprises a jack (14), a main anchor beam and a precision-rolled threaded steel bar, wherein the precision-rolled threaded steel bar is connected to the C-shaped leg (7).

3. The front support cable hanging basket device for a wide steel-concrete composite beam according to claim 2 is characterized in that: The main anchor assembly (13) also includes a monitoring device, which can detect the stress condition of the fine-rolled threaded steel bar in real time, and automatically adjust the pressure of the jack (14) according to the monitoring result to control the falling speed of the sliding shoe of the C-shaped leg (7).

4. The front support cable hanging basket device for a wide steel-concrete composite beam according to claim 1 is characterized in that: The tensioning assembly (11) comprises a plurality of tensioning cables.

5. The front support cable hanging basket device for a wide steel-concrete composite beam according to claim 1 is characterized in that: The sliding shoe of the C-shaped leg (7) is connected to a walking track (12) via a rolling bearing.

6. The front support cable hanging basket device for a wide steel-concrete composite beam according to claim 1 is characterized in that: The fine-rolled threaded steel bar is fixed to the main longitudinal beam (1) via a connecting piece.

7. The front support cable hanging basket device for a wide steel-concrete composite beam according to claim 1 is characterized in that: A sensor array is provided between the arc head (8) and the tensioning assembly (11) for real-time monitoring of tensioning force and angle changes.

8. A construction method for a front fulcrum cable hanging basket of a wide steel-concrete composite beam, using the front fulcrum cable hanging basket device of a wide steel-concrete composite beam according to any one of claims 1 to 7, characterized in that: The method comprises: S1, setting a main longitudinal beam (1) and a C-shaped leg (7), and fixing an arc head (8) to the front end of the main longitudinal beam (1); S2, installing a tensioning assembly (11) and connecting it to the arc head (8), and adjusting the tensioning force of the inclined cable through the tensioning assembly so that the hanging basket is tensioned according to the designed angle; S3, start the main anchor assembly (13), drive the C-shaped leg (7) sliding shoe to fall to the construction track through the jack (14) and the precision-rolled threaded steel bar, and ensure the stability of the hanging basket; S4. During the construction process, the tensioning force of the inclined cable is adjusted using the tensioning assembly (11) to monitor the stress changes of the structure in real time; S5. When the hanging basket is finished moving to the next construction section, the walking system (10) is started, and the walking track and the C-shaped leg (7) sliding shoes are used to slide, so as to ensure that the hanging basket moves smoothly on the main beam surface; S6. After the hanging basket completes the construction of each section, adjust the rear anchor system (15) and the thrust anchor (16) to ensure that the hanging basket is accurately positioned and supported.

9. The construction method of the front support cable hanging basket of a wide steel-concrete composite beam according to claim 8 is characterized by: The tensioning assembly (11) monitors the tensioning force and angle changes of the inclined cable through a real-time sensor array during the construction process, and feeds back the data to the control system to automatically adjust the tensioning force and angle to ensure construction accuracy.

10. The construction method of the front support cable hanging basket of a wide steel-concrete composite beam according to claim 8 is characterized by: The rear anchor system (15) and the thrust anchor (16) are connected by an adjustable screw rod and are fine-tuned after each basket movement to ensure the accurate positioning of the basket in each construction section.

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