Large-span pouring beam plate cover structure self-climbing system and using method thereof

Abstract

The invention relates to the technical field of building construction, and provides a large-span pouring beam plate cover structure self-climbing system and a using method thereof.The system comprises a plurality of climbing mechanisms, a truss assembly, a plurality of distance detection mechanisms and a control mechanism, and the multiple climbing mechanisms are correspondingly arranged on the outer sides of different pier columns in a sleeving mode; the truss assembly is transversely erected on the plurality of climbing mechanisms; the distance detection mechanisms are arranged in one-to-one correspondence with the plurality of climbing mechanisms, and the distance detection mechanisms are used for monitoring distance information between the climbing mechanisms and preset calibration positions in real time; the control mechanism is in signal connection with the multiple climbing mechanisms and the multiple distance detection mechanisms and used for controlling the climbing height of the corresponding climbing mechanisms according to distance information detected by the distance detection mechanisms so that the multiple climbing mechanisms can be kept on the same horizontal plane in the climbing motion and after climbing to the target position. Potential safety hazards under high-altitude operation are eliminated, the assembling efficiency is high, and meanwhile the climbing levelness of all the climbing mechanisms is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a self-climbing system for a large-span cast beam and slab cover structure and a use method thereof. Background Art

[0002] A self-climbing mechanism is a device that uses its own power system and mechanical structure to autonomously climb along vertical or inclined tracks or structures (such as buildings, towers, and piers) without the need for external lifting equipment. This device is widely used in construction, wind turbine tower maintenance, and robotic climbing, and is favored for its efficiency, safety, and flexibility.

[0003] During the construction of piers in construction projects, the implementation of synchronized multi-pier lifting technology faces significant technical challenges. Traditional construction methods present significant safety risks and efficiency bottlenecks when erecting tie-beam support structures in high-altitude environments. Construction workers must assemble the support structure at height, which is not only labor-intensive and risky, but also significantly affected by weather conditions, easily leading to project delays. Furthermore, due to subtle variations in weight, structure, and connection configuration of individual pier formwork, as well as mechanical inaccuracies in the hydraulic lifting systems of the pier formwork mechanisms, maintaining absolute synchronization of formwork lifting heights at different pier locations is often difficult. When the pier formwork is raised to the beam casting elevation, this unevenness can lead to uncontrolled installation accuracy of the beam bottom formwork support mechanism, resulting in a series of quality issues such as misaligned formwork joints and uneven support loads. This asynchrony is particularly amplified during the construction of large-span, continuous piers. This can negatively impact concrete pour quality at best, or even lead to instability in the support system, potentially causing serious safety incidents. Summary of the Invention

[0004] The present invention provides a self-climbing system for a large-span cast beam and slab cover structure and a method for using the system, which are used to solve the problems in the prior art of large safety hazards in high-altitude working environments, low transportation efficiency, and the inability to maintain consistent climbing height, which poses safety hazards. The system eliminates safety hazards in high-altitude working environments, has high assembly efficiency, and ensures the climbing levelness of each climbing mechanism.

[0005] The present invention provides a self-climbing system for a large-span cast beam and slab cover structure, comprising: A plurality of climbing mechanisms, wherein the plurality of climbing mechanisms are respectively and correspondingly disposed on the outside of different pier columns; A truss assembly, wherein the truss assembly is horizontally mounted on a plurality of the climbing mechanisms; A plurality of distance detection mechanisms, each of which corresponds to each of the plurality of climbing mechanisms, and is used to monitor in real time the distance information between the climbing mechanism and a preset calibration position; A control mechanism, wherein the control mechanism is respectively connected to signals of the plurality of climbing mechanisms and the plurality of distance detection mechanisms, and the control mechanism is used to control the climbing height of the corresponding climbing mechanism according to the distance information detected by the distance detection mechanism, so that the plurality of climbing mechanisms remain in the same horizontal plane during the climbing movement and after climbing to the target position.

[0006] According to a self-climbing system for a large-span cast beam and slab cover structure provided by the present invention, the distance detection mechanism includes a laser reflection pile and a laser ranging sensor, one of the laser reflection pile and the laser ranging sensor is set on the pier or on the ground corresponding to the pier, and the other is set on the climbing mechanism corresponding to the pier.

[0007] According to a large-span cast beam and slab cover structure self-climbing system provided by the present invention, the laser reflection piles are installed on the ground at the same horizontal height, and the laser ranging sensor is installed on the outer periphery of the lower end of the climbing mechanism.

[0008] According to the self-climbing system of a large-span cast beam and slab cover structure provided by the present invention, the laser reflection piles corresponding to the plurality of distance detection mechanisms are located on the same horizontal plane.

[0009] According to a large-span cast beam and slab cover structure self-climbing system provided by the present invention, several distance detection mechanisms include several laser ranging sensors, and the distances between several laser ranging sensors and the lower end surfaces of the climbing mechanisms on which they are installed are equal.

[0010] According to a self-climbing system for a large-span cast beam and slab cover structure provided by the present invention, the climbing mechanism includes at least two groups of frame assemblies, the two groups of frame assemblies are an upper frame assembly and a lower frame assembly, and the upper frame assembly and the lower frame assembly are stacked along the height direction of the pier.

[0011] According to a self-climbing system for a large-span cast beam and slab cover structure provided by the present invention, the climbing mechanism also includes an upper clamping assembly and a lower clamping assembly, the upper clamping assembly is symmetrically arranged on the upper frame assembly, and the lower clamping assembly is symmetrically arranged on the lower frame assembly, and the upper clamping assembly and the lower clamping assembly are used to alternately clamp the piers.

[0012] According to a self-climbing system for a large-span cast beam and slab cover structure provided by the present invention, the climbing mechanism further includes at least four groups of jacking assemblies, and the four groups of jacking assemblies are symmetrically arranged between the upper frame assembly and the lower frame assembly.

[0013] The present invention also provides a method for using a self-climbing system for a large-span cast beam and slab cover structure, the method comprising the following steps: Conduct stress analysis on the system, determine the stress points, and select the piers where the climbing mechanism needs to be installed based on the stress points; Install climbing mechanisms on selected piers on the ground; All piers equipped with climbing mechanisms shall be marked with uniform elevations; Adjust all climbing mechanisms to the same initial height through elevation marking and distance detection mechanisms; Complete the assembly of the entire truss assembly on the ground; Connect the assembled truss assembly to the climbing mechanism to form an overall climbing unit; Start all climbing mechanisms to drive the entire truss assembly to climb synchronously from the ground to the required height.

[0014] According to the present invention, a method for using a self-climbing system for a large-span cast beam and slab cover structure includes the following steps when all climbing mechanisms are adjusted to the same initial height through elevation marking and distance detection mechanisms: Install a laser ranging sensor on each climbing mechanism; Arrange laser reflective piles on the ground adjacent to the selected piers and adjust the sensing points to the same level; Laser ranging sensors and laser reflection piles are used to detect the real-time height of each climbing mechanism.

[0015] The present invention provides a self-climbing system for a large-span cast beam-slab cap structure and its use method. By horizontally mounting a truss assembly on several climbing mechanisms, the truss assembly can be assembled entirely on the ground. In a spacious and stable environment, construction workers can more conveniently and safely assemble the trusses, avoiding the inconvenience and danger of operating in confined spaces at high altitudes. Furthermore, ground assembly can be assisted by large machinery and equipment, reducing the need for manual overhead handling and installation, further reducing safety risks. After the trusses are assembled on the ground, the system can be hoisted entirely via the climbing mechanisms, significantly improving construction safety. Furthermore, since both the climbing mechanisms and the truss assembly can be assembled on the ground, the ground environment is relatively open and flat, allowing construction workers and machinery to operate more freely. During ground assembly, various specialized tools and equipment can be used, significantly reducing assembly time. Simultaneously, a control mechanism automatically adjusts the climbing height of each climbing mechanism based on real-time distance information to ensure that all climbing mechanisms are at the same level upon reaching their target position. In this way, automatic synchronous control effectively avoids problems such as uneven structural force, formwork misalignment, and instability of the support system caused by inconsistent climbing heights, significantly improving construction quality and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural schematic diagram of the self-climbing system of the large-span cast beam and slab cover structure provided by the present invention.

[0018] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0019] Figure 3 It is a flow chart of a method for using the self-climbing system of the large-span cast beam and slab cover structure provided by the present invention.

[0020] Reference numerals: 10. Self-climbing system for large-span cast beam and slab cover structures; 100, climbing mechanism; 110, upper frame assembly; 120, lower frame assembly; 130, upper clamping assembly; 140, lower clamping assembly; 150, jacking assembly; 200, truss assembly; 300, distance detection mechanism; 310, laser reflective pile; 320, laser ranging sensor; 20. Pier column. DETAILED DESCRIPTION

[0021] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0022] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0023] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on the specific circumstances.

[0024] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0025] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0026] The following combination Figures 1 to 3 , through specific embodiments and application scenarios, a large-span cast beam and slab cover structure self-climbing system and its use method provided by an embodiment of the present invention are described in detail.

[0027] In the embodiment of the present invention, Figure 1As shown, a large-span cast beam and slab cover structure self-climbing system 10 includes a plurality of climbing mechanisms 100, a truss assembly 200, a plurality of distance detection mechanisms 300 and a control mechanism, wherein the plurality of climbing mechanisms 100 are respectively and correspondingly arranged on the outside of different piers 20; the truss assembly 200 is horizontally mounted on the plurality of climbing mechanisms 100; the distance detection mechanism 300 is arranged in a one-to-one correspondence with the plurality of climbing mechanisms 100, and the distance detection mechanism 300 is used to monitor the distance information between the climbing mechanism 100 and the preset calibration position in real time; the control mechanism is respectively connected to the plurality of climbing mechanisms 100 and the plurality of distance detection mechanisms 300 by signal, and the control mechanism is used to control the climbing height of the corresponding climbing mechanism 100 according to the distance information detected by the distance detection mechanism 300, so that the plurality of climbing mechanisms 100 remain in the same horizontal plane during the climbing movement and after climbing to the target position.

[0028] The climbing mechanism 100 is the power source and foundational support structure for the entire self-climbing system. Several climbing mechanisms 100 are mounted on the exterior of different piers 20. Each mechanism uses its own power source (such as a hydraulic cylinder or electric cylinder) to generate upward thrust, enabling the entire system to climb along the pier 20.

[0029] Using multiple climbing mechanisms 100, each corresponding to a different pier 20, can accommodate various complex long-span structural layouts. Different piers 20 may have different heights, shapes, and spacings. Multiple climbing mechanisms 100 can operate independently, adjusting and climbing according to the actual conditions of their corresponding piers 20. This ensures that the entire self-climbing system can operate smoothly on piers 20 of varying shapes and sizes, meeting the construction requirements of large-span cast-beam-slab cap structures.

[0030] It should be noted that, in the embodiment of the present application, the truss assembly 200 includes a support and formwork system used for casting.

[0031] The truss assembly 200 serves as a construction platform, which is horizontally mounted on multiple climbing mechanisms 100 to form a stable and reliable overall structural platform for supporting the formwork system, construction loads and concrete pouring operations.

[0032] Since the truss assembly 200 is horizontally mounted on the climbing mechanism 100 , construction workers can complete the overall assembly of the truss assembly 200 on the ground, avoiding the complexity and danger of high-altitude assembly and improving construction efficiency and safety.

[0033] The climbing mechanism 100 drives the truss assembly 200 to rise to a desired position by generating an upward climbing force. The truss assembly 200 works in conjunction with the climbing mechanism 100 to achieve overall climbing.

[0034] The distance detection mechanism 300 is provided in a one-to-one correspondence with a plurality of climbing mechanisms 100. Its primary function is to monitor in real time the distance between the climbing mechanism 100 and a preset calibration position. During the climbing process, by precisely measuring the change in height of each climbing mechanism 100 relative to the calibration position, the climbing progress and position status of each climbing mechanism 100 can be monitored in a timely manner. For example, a laser ranging sensor 320 is used as the distance detection mechanism 300. It can emit a laser beam and measure the time it takes for the reflected light to be reflected, thereby calculating the precise distance between the climbing mechanism 100 and the calibration position with millimeter-level accuracy, providing accurate data support for subsequent control adjustments.

[0035] Real-time monitoring of distance information is crucial for ensuring that several climbing mechanisms 100 remain at the same horizontal plane after reaching their target location. By comparing the data fed back by each distance detection mechanism 300, height differences between the climbing mechanisms 100 can be promptly detected. If a climbing mechanism 100 climbs too fast or too slow, causing the height deviation from other mechanisms to exceed the allowable range, timely adjustments can be made to ensure that all climbing mechanisms 100 can climb synchronously and ultimately reach the same horizontal plane, avoiding problems such as uneven structural stress, template misalignment, and support system instability caused by inconsistent climbing heights.

[0036] The control mechanism is signal-connected to several climbing mechanisms 100 and several distance detection mechanisms 300. It receives real-time distance information from the distance detection mechanisms 300 and centrally processes and analyzes this information. By calculating and comparing large amounts of distance data, the control mechanism can accurately determine the climbing status and position deviation of each climbing mechanism 100, providing a basis for subsequent control decisions.

[0037] Based on the distance information detected by the distance detection mechanism 300, the control mechanism can accurately control the climbing height of the corresponding climbing mechanism 100. When it is found that there is a height deviation between a certain climbing mechanism 100 and other mechanisms, the control mechanism will promptly issue an instruction to adjust the operating speed or stroke of the climbing mechanism 100. For example, by adjusting the flow of the hydraulic system or the speed of the motor, the climbing mechanism 100 can be raised or lowered by a corresponding distance, thereby achieving synchronous height adjustment of each climbing mechanism 100. Through this closed-loop control system, it is possible to ensure that several climbing mechanisms 100 remain at the same horizontal plane after climbing to the target position, thereby ensuring the stability of the entire self-climbing system and the reliability of the construction quality.

[0038] The truss assembly 200 is horizontally arranged on a plurality of climbing mechanisms 100, so that the truss assembly 200 can be assembled integrally on the ground. In a spacious and stable environment on the ground, the construction personnel can more conveniently and safely assemble the truss, avoiding the inconvenience and danger brought by the operation in a small space in the air. Moreover, the ground assembly can be assisted by using large mechanical equipment, reducing the links of manual high-altitude carrying and installation, further reducing the safety risk. The system can assemble the truss on the ground, and then integrally lift the truss through the climbing mechanism 100, greatly improving the construction safety. Moreover, since the climbing mechanism 100 and the truss assembly 200 can be assembled on the ground, the ground environment is relatively open and flat, and the construction personnel and mechanical equipment can operate more freely. During the ground assembly, various professional tools and equipment can be used, greatly shortening the assembly time. At the same time, the control mechanism automatically adjusts the climbing height of each climbing mechanism 100 according to the real-time monitoring distance information, so that all the climbing mechanisms 100 are in the same horizontal plane after reaching the target position. In this way, through automatic synchronous control, the problems of uneven force on the structure, template misalignment, and unstable support system caused by inconsistent climbing height are effectively avoided, and the construction quality and safety are significantly improved.

[0039] Reference Figure 1 According to the large-span beam slab cover structure self-climbing system 10 provided by the application, the distance detection mechanism 300 includes a laser reflection pile 310 and a laser ranging sensor 320. One of the laser reflection pile 310 and the laser ranging sensor 320 is arranged on a pier 20 or the ground corresponding to the pier 20, and the other is arranged on the climbing mechanism 100 corresponding to the pier 20.

[0040] It can be understood that the laser reflection pile 310 provides a fixed and accurate reference point or reflecting surface. The laser ranging sensor 320 emits a laser beam to it, and calculates the distance by measuring the time or phase change of the laser beam back and forth.

[0041] The laser ranging sensor 320 has fast measurement and response capability, and can complete a distance measurement in a short time and transmit data to the control mechanism in real time. The cooperation of the laser reflection pile 310 and the laser ranging sensor 320 enables the system to continuously monitor the position of the climbing mechanism 100 and obtain the relative distance change between the climbing mechanism 100 and the pier 20 in real time.

[0042] The combination of the laser reflective stakes 310 and the laser ranging sensor 320 forms a stable distance measurement system. The laser reflective stakes 310 serve as a fixed reference, providing a stable coordinate system for the entire measurement system, while the laser ranging sensor 320 is responsible for real-time distance measurement. This stable measurement system provides accurate and reliable data support to the control mechanism, enabling it to precisely control the climbing height of the climbing mechanism 100 based on this data, ensuring that multiple climbing mechanisms 100 remain on the same horizontal plane during the climbing process and after reaching the target position, thereby improving the stability and reliability of the entire self-climbing system.

[0043] Reference Figure 1 According to a large-span cast beam and slab cover structure self-climbing system 10 provided by the present invention, laser reflection piles 310 are installed on the ground at the same horizontal height, and laser ranging sensors 320 are installed on the outer periphery of the lower end of the climbing mechanism 100.

[0044] It is understood that by installing the laser reflective piles 310 on the ground at the same level and the laser ranging sensor 320 on the outer periphery of the lower end of the climbing mechanism 100, it is possible to accurately measure the relative height change of the climbing mechanism 100 relative to its initial position on the ground. Using the ground corresponding to the pier as a reference, the laser ranging sensor 320 measures the distance to the laser reflective piles 310 in real time during the climbing process, accurately reflecting the ascent or descent of the climbing mechanism 100. This provides reliable data support for the control mechanism to precisely control the climbing height of the climbing mechanism 100, ensuring that multiple climbing mechanisms 100 can accurately maintain the same horizontal plane during the climbing process and after reaching the target position.

[0045] Reference Figure 1 According to a large-span cast beam and slab cover structure self-climbing system 10 provided by the present invention, the plurality of laser reflection piles 310 corresponding to the plurality of distance detection mechanisms 300 are on the same horizontal plane.

[0046] It's understandable that the laser reflective piles 310 are on the same horizontal plane, creating a unified measurement reference plane for all distance detection mechanisms 300. When measuring the distance between the climbing mechanism 100 and the laser reflective piles 310, each distance detection mechanism 300 performs its measurement based on this same horizontal reference. This is similar to measuring the height of an object by using the same precise level as a reference. This avoids measurement errors caused by different references, thereby ensuring the accuracy and consistency of the distance data obtained by each distance detection mechanism 300.

[0047] Reference Figure 1According to a large-span cast beam and slab cover structure self-climbing system 10 provided by the present invention, several distance detection mechanisms 300 include several laser ranging sensors 320, and the distances between the several laser ranging sensors 320 and the lower end surfaces of the climbing mechanisms 100 on which they are installed are equal.

[0048] It can be understood that when all laser ranging sensors 320 are at equal distances from the lower end surface of their corresponding climbing mechanism 100, a unified baseline is established for the entire measurement system. When measuring the height change of the climbing mechanism 100 relative to the laser reflective pile 310, each sensor begins its measurement from the same relative position. This avoids variations in measurement starting points due to differing sensor installation locations, ensuring comparable and consistent distance data measured by each sensor.

[0049] Reference Figure 1 and Figure 2 According to a large-span cast beam and slab cover structure self-climbing system 10 provided by the present invention, the climbing mechanism 100 includes at least two sets of frame assemblies, the two sets of frame assemblies are an upper frame assembly 110 and a lower frame assembly 120, and the upper frame assembly 110 and the lower frame assembly 120 are stacked along the height direction of the pier 20.

[0050] It can be understood that by providing two layers of frame assemblies, the structure of the climbing mechanism 100 is transformed from a single layer to a multi-layer structure, forming a three-dimensional support system. This stacked structure significantly improves the overall rigidity and stability of the climbing mechanism 100, enabling it to better withstand the weight of the truss assembly 200, the formwork system, and construction loads, thereby preventing structural deformation or instability.

[0051] At the beginning of the climbing action, the upper frame assembly 110 is first required to release its grip on the pier 20. Then, through the internal drive mechanism, the upper frame assembly 110 will move upward a short distance relative to the lower frame assembly 120 and grasp the attachment point at a higher position on the pier 20. Once the upper frame assembly 110 moves into place and establishes a new support, the control system will instruct the lower frame assembly 120 to release the old grip point. Then the lower frame assembly 120 will move upward again through the drive mechanism to grasp the position on the pier 20 originally occupied by the upper frame assembly 110, or move to a new higher position.

[0052] In this way, through the stacking and alternating grasping / movement of the upper and lower frame assemblies 120 , the climbing mechanism 100 climbs upward along the pier 20 step by step, and drives the truss assembly 200 to move upward to the target position.

[0053] Reference Figure 2According to a large-span cast beam and slab cover structure self-climbing system 10 provided by the present invention, the climbing mechanism 100 also includes an upper clamping assembly 130 and a lower clamping assembly 140. The upper clamping assembly 130 is symmetrically arranged on the upper frame assembly 110, and the lower clamping assembly 140 is symmetrically arranged on the lower frame assembly 120. The upper clamping assembly 130 and the lower clamping assembly 140 are used to alternately clamp the pier 20.

[0054] It will be appreciated that the upper clamping assembly 130 is symmetrically positioned on the upper frame assembly 110, and the lower clamping assembly 140 is symmetrically positioned on the lower frame assembly 120. This symmetrical layout allows the clamping force to be applied evenly around the pier 20, preventing tilt or shifting of the frame assembly due to uneven clamping force distribution. During the clamping process, the symmetrical clamping assemblies simultaneously apply equal force from both sides of the pier 20, maintaining horizontal stability of the frame assembly and reducing sway and deformation caused by excessive force on one side, thereby improving the stability of the entire self-climbing system both at rest and during climbing.

[0055] In this embodiment of the present invention, pressure sensors are installed in the pipes on the clamping assemblies. The pressure differential between the two sides determines the lifting force on the pier 20. The next step is allowed only when the lifting force reaches the rated pressure, ensuring the safety of the entire device. Furthermore, each clamping assembly is equipped with a built-in magnetostrictive sensor to ensure that the clamping assembly contacts the pier 20 simultaneously during clamping, preventing the entire device from shifting laterally due to the lifting force.

[0056] The alternating clamping mechanism ensures a constant, tight connection between the climbing mechanism 100 and the column 20. When the upper clamping assembly 130 is clamped to the column 20, the lower clamping assembly 140 can be released, providing space for the frame assembly to climb. Conversely, when the lower clamping assembly 140 is clamped to the column 20, the upper clamping assembly 130 is released, ensuring a smooth climb. This alternating clamping mechanism ensures a reliable connection between the climbing mechanism 100 and the column 20 at all times, preventing the frame assembly from slipping or becoming unstable due to a loose connection during the climbing process, further enhancing the stability of the system.

[0057] Reference Figure 2 According to a large-span cast beam and slab cover structure self-climbing system 10 provided by the present invention, the climbing mechanism 100 also includes at least four groups of jacking components 150, and the four groups of jacking components 150 are symmetrically arranged between the upper frame assembly 110 and the lower frame assembly 120.

[0058] It is understood that the jacking assembly 150 is an actuator that drives the vertical relative displacement between the upper frame assembly 110 and the lower frame assembly 120. The main function of the jacking assembly 150 is to provide a push or pull force to move one frame assembly relative to the other during the climbing cycle.

[0059] Specifically, when the lower clamping assembly 140 clamps the pier 20 to provide support, the jacking assembly 150 extends, pushing the upper frame assembly 110 and the upper clamping assembly 130 mounted thereon to move upwards. When the upper clamping assembly 130 moves to the predetermined position and clamps the pier 20, the jacking assembly 150 retracts, moving the lower frame assembly 120 and the lower clamping assembly 140 upwards until the lower clamping assembly 140 reaches a position before the upper clamping assembly 130 and clamps the pier 20.

[0060] The symmetrical arrangement of the jacking assembly 150 between the upper and lower frame assemblies 120 ensures that the driving force is evenly transmitted to both frames, improving the stability and load-bearing capacity of the overall structure.

[0061] Referring to Figure 3 The present application also provides a method for using the self-climbing system 10 for large-span cast beam slab cover structures. The method comprises the following steps: Performing stress analysis on the system to determine the stress points, and selecting the piers 20 that need to be installed with the climbing mechanism 100 according to the stress points; Installing the climbing mechanism 100 on the selected piers 20 on the ground; Uniformly marking the elevations of all piers 20 installed with the climbing mechanism 100; Adjusting all climbing mechanisms 100 to the same initial height through the elevation marking and distance detection mechanism 300; Completing the assembly of the entire truss assembly 200 on the ground; Connecting the assembled truss assembly 200 with the climbing mechanism 100 to form an overall climbing unit; Starting all climbing mechanisms 100 to drive the entire truss assembly 200 to climb synchronously from the ground to the desired height.

[0062] It can be understood that the stress points are determined by performing stress analysis on the system, and the piers 20 that need to be installed with the climbing mechanism 100 are selected according to the stress points. In this way, through structural mechanics analysis, the load size and distribution that each pier 20 needs to bear during the climbing process and after the final positioning of the truss structure can be determined. Not all piers 20 need to be installed with the climbing mechanism 100. According to the stress analysis, the climbing mechanism 100 is installed only on the piers 20 at the key stress points (usually the key positions where the load is larger or the structure needs support), which can save equipment investment and installation costs. At the same time, it ensures that the selected piers 20 and their climbing mechanisms 100 can bear the allocated load, avoiding structural deformation or even destruction due to insufficient support. It also provides a basis for the subsequent installation position, number, and synchronous control strategy of the climbing mechanism 100.

[0063] Install the climbing mechanism 100 on the selected pier 20 on the ground. Physically attach the climbing mechanism 100 to the designated pier 20. Ground installation is relatively easy, allowing the use of large lifting equipment, ample operating space, and greater precision. This also facilitates the next step of assembling the entire truss assembly 200 on the ground, as the truss can be directly attached to the already-placed climbing mechanism 100.

[0064] All piers 20 equipped with climbing mechanisms 100 are marked with a unified elevation mark. A unified and accurate horizontal reference point is marked on each pier 20 equipped with a climbing mechanism 100. This elevation point is the basis for subsequent adjustment of the initial height and height comparison during the climbing process.

[0065] All climbing mechanisms 100 are adjusted to the same initial height using the elevation marking and distance detection mechanism 300. Using the previously established elevation points and the laser distance sensor 320, each climbing mechanism 100 is precisely adjusted to the same initial height. This ensures that when the control system initiates climbing, all mechanisms begin movement from the same baseline height.

[0066] The entire truss assembly 200 is assembled on the ground. The individual components of the truss structure are assembled into a complete whole on the ground. Ground assembly fully utilizes the site, facilitates the operation of large machinery, significantly improves assembly efficiency, and shortens the construction period. The relatively stable ground assembly environment makes it easier to ensure the quality of processes such as welding and bolting, and also facilitates inspection and correction. This significantly reduces the workload of complex and dangerous assembly operations at height, improving safety.

[0067] Connect the assembled truss assembly 200 to the climbing mechanism 100 to form a complete climbing unit. Securely connect the ground-assembled truss to the previously installed and adjusted climbing mechanism 100. This allows the truss and climbing mechanism 100 to function as a coordinated whole, preparing for subsequent synchronized climbing. Ensure that during the climbing process, the weight of the truss is reliably transferred to the climbing mechanism 100 through the connection points, and then from the climbing mechanism 100 to the pier 20.

[0068] All climbing mechanisms 100 are activated, driving the entire truss assembly 200 to synchronously climb from the ground to the desired height. All climbing mechanisms 100 are activated, and the control system achieves synchronous control of multiple climbing mechanisms 100. The climbing mechanisms 100 drive the entire truss assembly 200 to synchronously climb from the ground to the designed height. During the climbing process, the distance detection mechanism 300 monitors the height changes of each climbing mechanism 100 in real time and transmits the data to the control mechanism. Based on this real-time data, the control mechanism automatically adjusts the climbing speed of each climbing mechanism 100 to ensure the synchronization and stability of the overall climbing process.

[0069] When the truss assembly 200 climbs to the designed height, it is fixed with the corbels and climbing cones; the climbing system can be transferred to the next pouring area for use.

[0070] In one embodiment, a method for using a self-climbing system 10 for a large-span cast beam and slab cover structure according to the present invention includes the following steps when all climbing mechanisms 100 are adjusted to the same initial height using the elevation marking and distance detection mechanism 300: A laser ranging sensor 320 is installed on each climbing mechanism 100; Arrange laser reflective piles 310 on the ground adjacent to the selected pier 20, and adjust the sensing points to the same horizontal height; The real-time height of each climbing mechanism 100 is detected by using the laser ranging sensor 320 and the laser reflecting pile 310 .

[0071] It is understood that laser ranging sensors 320 are installed on each climbing mechanism 100. These sensors can continuously measure distances in real time and transmit the data to the control system. This allows construction personnel to promptly understand the current height position of each climbing mechanism 100 during the height adjustment process, making dynamic adjustments based on real-time data. This improves the efficiency and accuracy of adjustments and ensures that all climbing mechanisms 100 can quickly and accurately reach the same initial height.

[0072] Laser reflection piles 310 are arranged on the ground adjacent to the selected pier 20, and the sensing points are adjusted to the same horizontal height. The laser reflection piles 310 serve as reference points for distance measurement. Laser reflection piles 310 are arranged on the ground adjacent to the selected pier 20, and the sensing points are adjusted to the same horizontal height, thereby establishing a unified benchmark for distance measurement of all climbing mechanisms 100.

[0073] Based on the measured height data and the results of the difference analysis, construction personnel can operate the adjustment device to precisely adjust the height of each climbing mechanism 100. By continuously measuring and adjusting until the distance from all climbing mechanisms 100 to the ground is consistent, the goal of all climbing mechanisms 100 being at the same initial height is achieved, laying the foundation for the safe and stable operation of the entire large-span cast beam and slab cover structure self-climbing system 10. At the same time, during the climbing process of the climbing mechanism 100, the laser ranging sensor and laser reflective pile can also detect the real-time height of each climbing mechanism 100, ensuring that several climbing mechanisms 100 remain on the same horizontal plane during the climbing movement.

[0074] In some embodiments, the climbing mechanism 100 of the present application also includes an anti-fall device, which includes a fixed seat, an insert, an electromagnet module and an elastic push module. The fixed seat is used to be installed on the inner side surface of the climbing mechanism 100 facing the pier 20, and the fixed seat has a first mating surface inclined from bottom to top toward the pier 20; the insert is slidably connected to the first mating surface, and the horizontal cross-section of the insert is gradually reduced from bottom to top, and the side of the insert away from the fixed seat is movably abutted against the pier 20; the electromagnet module is provided at the bottom of the fixed seat and is corresponding to the insert. The electromagnet module is used to adsorb and fix the insert after power is turned on and when it is in contact with the insert; the elastic push module is connected between the fixed seat and the insert. The elastic push module is used to push the insert upward along the first mating surface after the electromagnet module loses power.

[0075] The fixing base can be installed on the inner side of the self-climbing mechanism 100 facing the pier 20, providing a stable support base for the entire anti-fall device, ensuring that the device can move with the self-climbing mechanism 100 and accurately apply force to the pier 20 when needed. At the same time, installing it on the inner side facing the pier 20 facilitates the contact between the insert and the pier 20 to achieve the anti-fall function.

[0076] The first mating surface is inclined upward from bottom to top toward the pier 20. It is used to guide the insert along a predetermined inclined path. Its angle of inclination is key to achieving the "tighter the more you lock," self-locking effect. As the insert moves upward along this surface under the action of the elastic push module, the inclined surface decomposes the upward thrust of the elastic push module into a force perpendicular to the pier 20 (generating positive pressure) and a force along the pier 20. As the insert moves upward, a greater upward thrust is required to overcome the resistance caused by friction between the insert and the pier 20. This, in turn, generates greater positive pressure through the inclined surface, creating positive feedback and achieving self-locking.

[0077] The insert is slidably connected to the first mating surface. Through the sliding connection, the insert can move freely on the first mating surface, thereby switching between the contact and separation states with the pier 20 according to the changes in the forces of the electromagnet module and the elastic push module.

[0078] The horizontal cross-section of the insert gradually decreases from bottom to top. As the insert is pushed upward, because its upper portion is narrower than its lower portion, it needs to "wedge" or "snag" into contact with pier 20. Further upward movement requires overcoming a greater force (because the effective contact area / lever arm may increase and the frictional forces already generated must be overcome). This results in a continuous increase in the positive pressure (abutment force) between the insert and pier 20 as it moves upward.

[0079] The side of the insert facing away from the fixed seat is movably abutted against the pier 20. Under normal working conditions, a certain gap is maintained between the insert and the pier 20, which does not affect the normal climbing of the self-climbing mechanism 100; when an unexpected fall occurs, the insert can quickly abut against the pier 20, and prevent the self-climbing mechanism 100 from continuing to fall through friction, thereby realizing the anti-fall function.

[0080] The electromagnet module is located at the bottom of the mounting base and corresponds to the insert. It is installed at the bottom of the mounting base and corresponds to the insert, allowing the electromagnet module to exert a direct force on the insert. When the electromagnet module is energized and the insert is in contact with the electromagnet module, the electromagnet module generates a magnetic force that attracts the insert and holds it in place.

[0081] The elastic push module is connected between the fixed seat and the insert, so that the elastic push module can transmit the force between the fixed seat and the insert, provide restoring force for the insert, and is the key structural connection to achieve self-locking of the insert.

[0082] The elastic push module is used to push the insert upward along the first mating surface after the electromagnet module loses power. That is, when the electromagnet module loses power and the magnetic force disappears, the elastic push module uses its own elastic potential energy to push the insert upward along the first mating surface, so that the insert abuts against the pier 20. In this way, in the event of an emergency such as an unexpected fall or power outage of the self-climbing mechanism 100, the protective state of the anti-fall device can be quickly restored to ensure that the self-climbing mechanism 100 does not fall further, thereby ensuring construction safety.

[0083] In some embodiments, if there are no special requirements for the surface of the pier 20 , the anti-fall device can always adhere to the wall from the initial state and climb upward.

[0084] In this embodiment, the insert is slidably mounted on the first mating surface of the mounting base. The first mating surface faces the column 20 from bottom to top, and the horizontal cross-section of the insert gradually decreases from bottom to top. Thus, under normal operating conditions, the electromagnet module is energized to engage and attract the insert, allowing the self-climbing mechanism 100 to operate normally. However, in the event of an emergency such as a power outage or mechanical failure, the electromagnet module loses power, and the elastic push module comes into play, pushing the insert upward along the first mating surface. Because the insert's horizontal cross-section gradually decreases from bottom to top and flexibly engages the column 20, a self-locking angle is formed between the insert and the mounting base. When the insert abuts the column 20, the friction force generated by the insert pressing against the column 20 during the self-climbing mechanism 100's fall is greater than its own weight, ultimately causing it to firmly abut the column 20. This effectively prevents the self-climbing mechanism 100 and the equipment from falling, ensuring the safety of the equipment even under the most adverse conditions. This effectively prevents casualties caused by falling equipment hitting people below, as well as property damage caused by damage to surrounding facilities. At the same time, it can also effectively improve the reliability of the self-climbing mechanism 100 under various working conditions, reduce the risk of equipment damage and safety accidents caused by unexpected situations, and thus improve the overall safety of the self-climbing mechanism 100. When the equipment fault is resolved, the anti-fall device does not need to return to the electromagnet module's energized state. The anti-fall device only prevents the equipment from falling and does not hinder the equipment from ascending.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A self-climbing system (10) for a large-span cast beam and slab cover structure, characterized in that: include: A plurality of climbing mechanisms (100), wherein the plurality of climbing mechanisms (100) are respectively and correspondingly disposed on the outside of different piers (20); A truss assembly (200), the truss assembly (200) being horizontally mounted on a plurality of the climbing mechanisms (100); a plurality of distance detection mechanisms (300), the distance detection mechanisms (300) being arranged in a one-to-one correspondence with the plurality of climbing mechanisms (100), the distance detection mechanisms (300) being used to monitor in real time the distance information between the climbing mechanisms (100) and a preset calibration position; A control mechanism is respectively connected to signals of a plurality of the climbing mechanisms (100) and a plurality of distance detection mechanisms (300), and the control mechanism is used to control the climbing height of the corresponding climbing mechanism (100) according to the distance information detected by the distance detection mechanism (300), so that the plurality of climbing mechanisms (100) remain on the same horizontal plane during the climbing movement and after climbing to the target position.

2. The self-climbing system (10) for a large-span cast beam and slab cover structure according to claim 1 is characterized in that: The distance detection mechanism (300) comprises a laser reflection pile (310) and a laser distance measuring sensor (320), one of the laser reflection pile (310) and the laser distance measuring sensor (320) being arranged on the pier (20) or on the ground corresponding to the pier, and the other being arranged on the climbing mechanism (100) corresponding to the pier (20).

3. The self-climbing system (10) for a large-span cast beam and slab cover structure according to claim 2 is characterized in that: The laser reflection pile (310) is installed on the ground at the same horizontal height, and the laser distance measuring sensor (320) is installed on the outer periphery of the lower end of the climbing mechanism (100).

4. The self-climbing system (10) for a large-span cast beam and slab cover structure according to claim 3 is characterized in that: The plurality of laser reflection piles (310) corresponding to the plurality of distance detection mechanisms (300) are located on the same horizontal plane.

5. The self-climbing system (10) for a large-span cast beam and slab cover structure according to claim 4 is characterized in that: The plurality of distance detection mechanisms (300) include a plurality of laser distance measuring sensors (320), and the distances between the plurality of laser distance measuring sensors (320) and the lower end surfaces of the climbing mechanisms (100) on which the plurality of laser distance measuring sensors (320) are correspondingly installed are equal.

6. The self-climbing system (10) for a large-span cast beam-slab cover structure according to any one of claims 1 to 5, characterized in that: The climbing mechanism (100) comprises at least two sets of frame assemblies, wherein the two sets of frame assemblies are an upper frame assembly (110) and a lower frame assembly (120), respectively. The upper frame assembly (110) and the lower frame assembly (120) are stacked along the height direction of the pier column (20).

7. The large-span cast beam and slab cover structure self-climbing system (10) according to claim 6 is characterized in that: The climbing mechanism (100) further comprises an upper clamping assembly (130) and a lower clamping assembly (140), wherein the upper clamping assembly (130) is symmetrically arranged on the upper frame assembly (110), and the lower clamping assembly (140) is symmetrically arranged on the lower frame assembly (120), and the upper clamping assembly (130) and the lower clamping assembly (140) are used to alternately clamp the pier column (20).

8. The self-climbing system (10) for a large-span cast beam and slab cover structure according to claim 7 is characterized in that: The climbing mechanism (100) further comprises at least four groups of lifting assemblies (150), wherein the four groups of lifting assemblies (150) are symmetrically arranged between the upper frame assembly (110) and the lower frame assembly (120).

9. A method for using a self-climbing system (10) for a large-span cast beam and slab cover structure, characterized in that: The method of use comprises the following steps: Performing a stress analysis on the system to determine the stress points, and selecting the pier (20) on which the climbing mechanism (100) needs to be installed based on the stress points; Installing a climbing mechanism (100) on the selected pier (20) on the ground; Performing unified elevation marking on all piers (20) equipped with climbing mechanisms (100); All climbing mechanisms (100) are adjusted to the same initial height through the elevation marking and distance detection mechanism (300); Complete the assembly of the entire truss assembly (200) on the ground; Connecting the assembled truss assembly (200) to the climbing mechanism (100) to form an integral climbing unit; All climbing mechanisms (100) are activated to drive the entire truss assembly (200) to synchronously climb from the ground to a required height.

10. The method of use according to claim 9, characterized in that: When all the climbing mechanisms (100) are adjusted to the same initial height through the elevation marking and distance detection mechanism (300), the following steps are included: Installing a laser ranging sensor (320) on each climbing mechanism (100); Arranging laser reflection piles (310) on the ground adjacent to the selected pier column (20), and adjusting the sensing points to the same horizontal height; The real-time height of each climbing mechanism (100) is detected using a laser distance measuring sensor (320) and a laser reflection pile (310).

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