Cantilever scaffold construction method and safety system

Abstract

The invention provides a cantilever scaffold construction method and a safety system, and belongs to the technical field of building construction.The cantilever scaffold construction method comprises the following steps that S1, a high-strength wall connecting tie is pre-buried on a building to serve as a supporting point of a cantilever scaffold; s2, a cantilever scaffold is made of a carbon fiber composite material, and the cantilever scaffold is firmly connected with a building structure to form a stable supporting system; s3, the transverse rods and the vertical rods are connected through offset limiting devices, and vertical diagonal bracings and horizontal diagonal bracings are arranged between the transverse rods and the vertical rods; s4, the cantilever frame is connected with the building through an inhaul cable, and a walkway plate is laid at the upper end of the cantilever frame; and S5, after the cantilever scaffold is installed, the perpendicularity of the vertical rod and the overall state of the scaffold are monitored in real time till use of the scaffold is completed, and the problems that sliding and deviation of the vertical rod cannot be effectively limited through a traditional cantilever scaffold fixing mode, and potential safety hazards are large are solved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of building construction, and in particular relates to a cantilevered scaffold construction method and safety system. BACKGROUND

[0002] The cantilevered scaffold is a kind of temporary support structure commonly used in building construction, mainly used for the safety protection of workers during high-altitude operation and material transportation. The characteristic of this scaffold is that the vertical load is transmitted to the main structure through the bottom steel support frame. The cantilevered scaffold is usually composed of a steel support frame, a fastener type steel pipe scaffold, and a wall connecting piece. When erecting the cantilevered scaffold, it is necessary to strictly follow the safety technical regulations to ensure that all personnel involved in the erection hold the corresponding operation qualification certificates, and they must wear safety helmets, safety belts, and non-slip shoes during operation. In addition, protective measures should be taken to prevent falling objects from injuring people at the bottom and outside of the scaffold, and temporary support should be provided during the erection process to ensure the stability of the scaffold. The scaffold is a working platform erected to ensure the smooth progress of various construction processes.

[0003] The traditional bottom support structure is prone to uneven distribution when subjected to stress, causing some vertical poles to bear excessive pressure and leading to instability of the overall structure. In addition, the traditional fixing method cannot effectively limit the sliding and deviation of the vertical poles, further exacerbating the instability of the scaffold. At the same time, problems such as weak welds that may exist during the welding process also pose a safety hazard, seriously threatening the safety of construction personnel. Therefore, a cantilevered scaffold construction method and safety system are designed. SUMMARY

[0004] The present application provides a cantilevered scaffold construction method and safety system, which solves the problem of the traditional cantilevered scaffold fixing method that cannot effectively limit the sliding and deviation of the vertical poles, and has a large safety hazard.

[0005] In view of the above problems, the technical solution provided by the present application is: The present application provides a cantilevered scaffold construction method, comprising the following steps: S1, embedding a high-strength wall connecting tie on the building as a support point of the cantilevered frame; S2, using carbon fiber composite material to make the cantilevered scaffold, and firmly connecting the cantilevered frame with the building structure to form a stable support system; S3, reasonably arranging the position of the vertical poles, connecting the horizontal poles and vertical poles with the deviation limiting device, and setting vertical and horizontal scissors braces between the horizontal poles and vertical poles; S4, connecting the cantilevered frame with the building using the inlaid optical fiber sensor, and laying the walkway plate on the upper end of the cantilevered frame; S5, after the cantilevered scaffold is installed, the verticality of the vertical rod and the overall state of the scaffold are monitored in real time until the use of the scaffold is completed, and then the scaffold is dismantled and recycled.

[0006] As a preferred technical solution of the present application, the offset limiting device in step S3 is embedded in the interior of the vertical rod, the offset limiting device comprises a mounting plate for connecting with the vertical rod, a driving member for driving the rotation of the rotating plate, and a clamping member for clamping the vertical rod, the rotating plate is designed as a circular ring, the outer side of the rotating plate is provided with a movable slot for mounting a movable member, and the front side of the mounting plate is fixedly provided with a connecting column for connecting the movable member and the mounting plate.

[0007] As a preferred technical solution of the present application, the surface of the vertical rod is provided with a mounting hole for mounting the offset limiting device, the mounting plate is screw-connected with the vertical rod, the driving member comprises a motor, a lead screw and a sliding block, the motor is screw-connected with the mounting plate, the output end of the motor is in transmission connection with the lead screw, the lead screw is in threaded cooperation with the sliding block, and the other side of the sliding block is screw-connected with the rotating plate.

[0008] As a preferred technical solution of the present application, the movable member comprises a movable rod, a sliding frame and a connecting shaft, one end of the movable rod is rotationally connected with the connecting column, the sliding frame is sleeved on the outer side of the movable rod, and the connecting shaft is arranged between the rotating plate and the sliding frame.

[0009] As a preferred technical solution of the present application, the clamping member is arranged at the other end of the movable rod, the clamping member comprises an outer clamping plate, an inner clamping plate and a clamping block, the rear end of the outer clamping plate is provided with a notch for the rear end of the inner clamping plate to move, the inner sides of the outer clamping plate and the inner clamping plate are fixedly provided with connecting ends, the outer clamping plate and the inner clamping plate are rotationally connected through the connecting ends, and the front ends of the outer clamping plate and the inner clamping plate are screw-connected with clamping blocks.

[0010] On the other hand, a safety system of a cantilevered scaffold construction method comprises a verticality monitoring module, the verticality monitoring module is used for monitoring the verticality of the vertical rod in real time by embedding a quantum gyroscope in the vertical rod. A clamping block triggering module is used for controlling the form switching of the clamping member to adapt to the position of the vertical rod. A stress display module is used for displaying the real-time stress distribution by pasting foil strain gauges at key nodes of the cantilevered scaffold. A visualization module is used for visualizing the monitoring data of the stress display module by using a visualization device. The regulation module is used for storing the adjustment scheme of the offset limiting device and sending control instructions according to matching of real-time monitoring data and the adjustment scheme.

[0011] As a preferred technical scheme of the present application, the detailed steps of the clamping block triggering module for controlling the shape of the clamping piece are as follows: Step a: using a UAV loaded with a microwave emitter to provide energy stimulation to trigger the shape change of the shape memory polymer of the clamping block; Step b: the UAV is equipped with a microwave emitter with a copper mesh shield, and is accurately positioned to the target vertical rod according to a time-sharing protocol; Step c: the microwave irradiation makes the shape memory polymer of the clamping block reach the phase change threshold, triggering the radial shape change to realize the clamping force adjustment, while the shield suppresses the signal overflow interference; Step d: after the microwave is turned off, the shape memory polymer cools down and keeps the shape in the new shape.

[0012] As a preferred technical scheme of the present application, the stress distribution of the stress display module is displayed in real time through the stress gradient, and the detailed stress display operation is as follows: Step A: foil strain gauges are pasted at key nodes of the cantilevered scaffold to establish stress monitoring points and provide a basis for visual display; Step B: the scaffold receives stress during construction, the foil strain gauge surface integrates LED indicator lights, and construction personnel can intuitively judge the stress state through the light color; Step C: the strain data monitored by the foil strain gauge is transmitted to the visualization module through a wireless network to generate a three-dimensional stress diagram of the scaffold.

[0013] Compared with the prior art, the present application has the following advantages: (1) The offset limiting device can automatically adjust the position of the clamping piece according to real-time data, more effectively limit the offset of the vertical rod, and enhance the stability and safety of multi-directional clamping, reduce the influence of external force, and can adapt to different specifications of vertical rods, with strong universality, reduce the hidden dangers brought by specification changes, modular design is convenient for installation and maintenance, improve the construction efficiency, and is beneficial to repeated use; (2) The present application realizes high-precision real-time monitoring through a quantum gyroscope, ensures the perpendicularity of the vertical rod, and flexibly adapts to different working conditions through the material of the clamping block, quickly adjusts the position of the vertical rod, and cooperates with the foil strain gauge to intuitively display the stress distribution, real-time master the state of the scaffold, form an intelligent construction safety system, improve the construction safety, and reduce accidents.

[0014] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, and to be implemented according to the content of the specification, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a flowchart of the cantilevered scaffold construction method disclosed by the present application; Figure 2 is a schematic diagram of the cantilevered scaffold structure of the cantilevered scaffold construction method disclosed by the present application; Figure 3 is a schematic diagram of the upright rod structure of the cantilevered scaffold construction method disclosed by the present application; Figure 4 is a schematic diagram of the overall structure of the offset limiting device of the cantilevered scaffold construction method disclosed by the present application; Figure 5 is an enlarged structure schematic diagram of part A of the schematic diagram of the overall structure of the offset limiting device of the cantilevered scaffold construction method disclosed by the present application; Figure 6 is a cross-sectional structure schematic diagram of the offset limiting device of the cantilevered scaffold construction method disclosed by the present application Figure 7 is a safety system block diagram of the cantilevered scaffold construction method disclosed by the present application; The following is a description of the reference numerals: 10, cross rod; 20, upright rod; 201, mounting hole; 30, vertical scissors support; 40, horizontal scissors support; 50, walkway plate; 60, offset limiting device; 601, mounting plate; 602, connecting column; 603, rotating plate; 6031, movable groove; 604, driving piece; 6041, motor; 6042, lead screw; 6043, sliding block; 605, movable piece; 6051, movable rod; 6052, sliding frame; 6053, connecting shaft; 606, clamping piece; 6061, outer clamping plate; 6062, inner clamping plate; 6063, clamping block; 6064, non-slip pad; 6065, connecting end; 70, connecting rod; 701, inhaul cable; 80, safety system; 801, perpendicularity monitoring module; 802, clamping block triggering module; 803, stress display module; 804, visualization module; 805, regulation and control module. DETAILED DESCRIPTION

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] Example 1

[0022] See attached document Figures 1-6 As shown, the present invention provides a technical solution: a method for constructing cantilever scaffolding, comprising the following steps: S1. Conduct a strength assessment of the building structure to ensure that it can withstand the load of the cantilevered scaffolding, and pre-embed high-strength wall ties in the building as support points for the cantilevered scaffolding. S2, adopt carbon fiber composite materials to make cantilevered scaffold, ensure that it has enough bearing capacity, cantilevered frame is firmly connected with building structure, form stable support system, and set elastic gasket between cantilevered beam and building structure, to absorb and disperse vibration and impact, reduce the influence on building structure; Among them, the microwave penetration is explained as follows: Good: the absorption rate of the material to the microwave is moderate, and the microwave can penetrate, but there may be a certain degree of reflection and refraction; Good: the absorption rate of the material to the microwave is moderate, and the microwave can penetrate, but there may be a certain degree of reflection and refraction; Medium: the absorption rate of the material to the microwave is higher, and the microwave penetration is general, which may need a thinner thickness or special treatment; Poor: the absorption rate of the material to the microwave is very high, and the microwave is difficult to penetrate, which is not suitable for microwave equipment structure material or microwave heating object; S3, according to the load calculation result, reasonably arrange the position of vertical rod 20, ensure that the stress is uniform, the horizontal rod 10 and the vertical rod 20 are connected by offset limiting device 60, prevent sliding and offset, set vertical scissors brace 30 and horizontal scissors brace 40 between horizontal rod 10 and vertical rod 20; S4, use cable 701 with built-in optical fiber sensor to connect cantilevered frame with building, use high-strength walkway plate 50 installed at the upper end of cantilevered frame, ensure that it can bear construction load, footboard is firmly connected with horizontal rod 10, prevent sliding and falling; The cable 701 is installed on the cantilevered scaffold through the connecting rod 70, one end of the connecting rod 70 is connected with the building through the wall connecting cable, the upper surface of the connecting rod 70 is installed on the scaffold through bolts, the cable 701 is installed on the other end of the connecting rod 70 through the lifting ring and the hook, and the adjustment process of the cable 701 cooperating with the safety system 80 includes: firmly fixing one end of the cable 701 on the drum of the winding machine, ensuring reliable connection and avoiding loosening or falling off during winding, determining the required length and quantity of the cable 701 according to the construction design requirements, and marking and arranging the cable 701 accordingly, so as to accurately control during winding, winding the cable on the drum uniformly according to the predetermined speed and winding mode. During winding, proper tension is maintained to avoid over-tightening or over-loosening of the cable, the built-in optical fiber sensor monitors the tension and deformation of the cable 701 in real time, and transmits the data to the safety system 80. The safety system 80 analyzes these data in real time to ensure the safety and accuracy of the winding process. The optical fiber sensor continuously monitors the tension change of the cable 701, and the safety system 80 compares the real-time tension data with the preset tension threshold to ensure that the tension of the cable always remains within a safe range. At the same time, the optical fiber sensor also monitors the deformation of the cable, such as elongation and bending degree, and the safety system 80 analyzes the deformation data to determine whether the cable has excessive deformation or damage, and timely discovers potential safety hazards. When the tension or deformation of the cable 701 is monitored to exceed the safe range, the safety system 80 controls the operating parameters of the winding machine, such as adjusting the winding speed and tension control, to restore the safety state of the cable 701. When necessary, the system can also issue an alarm to remind the construction personnel to take manual intervention measures. The safety system 80 stores all the data collected by the optical fiber sensor, including the tension, deformation and environmental parameters of the cable. These data will be recorded as the construction process for subsequent query and analysis, and the optical fiber sensor will be calibrated regularly to ensure the accuracy of the monitoring data. If it is found that the sensor has failed or its performance has decreased, it should be repaired or replaced in time; S5, after the cantilevered scaffold is installed, the verticality of the vertical rod 20 is monitored in real time by the quantum gyroscope, when the deviation is monitored, the control module 805 generates a control signal to instruct the deviation limiting device 60 to adjust the reverse force by the clamping piece 606 until the vertical rod 20 restores to the vertical state, the monitoring data continuously feedback forms a closed loop control, until the use of the scaffold is completed, and the dismantling and recycling are carried out in turn; The details of real-time monitoring in step S5 include: the verticality data of the vertical rod 20 monitored by the quantum gyroscope, the monitoring data is transmitted to the control module 805 through wireless communication technology, the control module 805 receives the data and performs real-time analysis, calculates the verticality deviation of the vertical rod 20, according to the analysis result, the control module 805 generates a reverse adjustment signal, the offset limiting device 60 receives the control signal and starts to adjust the clamping degree, adjusts the active part 605 and the clamping part 606, applies a reverse force to the vertical rod 20, and the verticality data of the vertical rod 20 is restored, indicating that the verticality is not deviated, the offset limiting device 60 remains in the adjusted state, ensuring that the vertical rod 20 remains stable during construction, and the quantum gyroscope continues to monitor the verticality of the vertical rod 20, ensuring that any new deviation can be detected and adjusted in time; S6, in the construction of the cantilevered scaffold, when the monitoring data approaches the critical state, the emergency self-healing response mechanism intervenes quickly to prevent potential safety accidents, the triggering mechanism includes: 1, the local area composed of adjacent 3 nodes simultaneously flashes red light: the foil strain gauge is pasted at the key nodes of the vertical rod 20 and the horizontal rod 10, the built-in circuit converts the real-time stress value into an electrical signal, and according to the preset threshold value, the surface integrated three-color LED indicator light is controlled, when the adjacent 3 nodes simultaneously flash red light, the emergency response is triggered, wherein, the green light represents that the real-time stress is far below the stress threshold value of the material, the structure is in the elastic safety interval, the yellow light represents that the real-time stress approaches the stress threshold value of the material, which may cause fatigue damage and needs early warning intervention, the threshold value of the yellow light needs to be lower than the fatigue strength critical value of the material to avoid long-term cyclic load causing crack propagation, and the red light represents that the real-time stress exceeds the stress threshold value of the material, which has the risk of plastic deformation and triggers the emergency response, when the red light is triggered, the design of the stress threshold value needs to be lower than the yield strength of the material to reserve the safety margin of the structure, and the stress threshold value is determined according to the yield strength and the safety factor of the material used by the scaffold, for example, the green light: the real-time stress value is lower than 60% of the stress threshold value; the yellow light: the real-time stress value reaches or exceeds 60% but is lower than 80% of the stress threshold value; the red light: the real-time stress value reaches or exceeds 80% of the stress threshold value; 2, when the quantum gyroscope detects that the angular velocity change exceeds the set threshold value, the quantum gyroscope continuously monitors the angular velocity change of the scaffold, once the angular velocity mutation is detected and the change rate exceeds 0.1° / s, it indicates that the scaffold may be subjected to accidental impact or unbalance, the system immediately identifies it as an emergency and starts the self-healing program, after the emergency self-healing response is started, the system completes the following actions within a predetermined time: first, the offset limiting device 60 quickly adjusts the position of the vertical rod 20 to restore the stability and balance of the scaffold, second, the clamping block triggering module 802 further assists the mode switching to ensure that the scaffold structure quickly adapts to the new stress distribution, and finally, the strain gauge network continuously updates the stress display for the construction personnel to master the state of the scaffold in real time, during the whole process, the quantum gyroscope continuously monitors and provides data support to ensure the accuracy and effectiveness of the emergency response.

[0023] The embodiment of the present application is also implemented by the following technical solutions.

[0024] In the embodiment of the present application, the offset limiting device 60 in step S3 is embedded in the interior of the stand pole 20, the offset limiting device 60 comprises a mounting plate 601 for connecting with the stand pole 20, the mounting plate 601 is connected with the stand pole 20 through a screw, providing a position for mounting and fixing other components, ensuring the stability and reliability of the device, a driving member 604 for driving the rotation of a rotating plate 603, a clamping member 606 for clamping the stand pole 20, the rotating plate 603 is designed as a circular ring, the outer side of the rotating plate 603 is provided with a movable groove 6031 for mounting a movable member 605, the movable plate rotates under the driving of the driving member 604, the movable groove 6031 on the outer side of the movable plate cooperates with the movable member 605, converting the rotation into a push-pull action on the movable member 605, and further driving the sliding frame 6052 to slide on the movable rod 6051, the front side of the mounting plate 601 is fixed with a connecting column 602 for connecting the movable member 605 and the mounting plate 601, so that one end of the movable member 605 rotates on the connecting column 602.

[0025] In the embodiment of the present application, the surface of the stand pole 20 is provided with a mounting hole 201 for mounting the offset limiting device 60, the driving member 604 comprises a motor 6041, a lead screw 6042 and a sliding block 6043, the motor 6041 is screw-connected with the mounting plate 601, the output end of the motor 6041 is in transmission connection with the lead screw 6042, the lead screw 6042 rotates under the driving of the motor 6041, the thread on the lead screw 6042 cooperates with the internal thread of the sliding block 6043, the lead screw 6042 cooperates with the sliding block 6043 in thread, when the lead screw 6042 rotates, the sliding block 6043 will generate a linear motion on the lead screw 6042, thereby converting the rotary motion of the motor 6041 into the linear motion of the sliding block 6043, the other side of the sliding block 6043 is screw-connected with the rotating plate 603, the sliding block 6043 is connected with the rotating plate 603 through a screw, when the sliding block 6043 moves on the lead screw 6042, the rotating plate 603 connected with the sliding block 6043 will rotate around the central axis, the rotating angle and position of the rotating plate 603 are determined by the moving distance of the sliding block 6043, thereby realizing the accurate control of the rotating plate 603, the motor 6041 as a power source converts the rotary motion into the linear motion through the transmission of the lead screw 6042 and the sliding block 6043, accurately controls the rotating angle and position of the rotating plate 603, and realizes the adjustment of the movable member 605 and the clamping member 606.

[0026] In the embodiment of the present application, the moving part 605 comprises a moving rod 6051, a sliding frame 6052 and a connecting shaft 6053, one end of the moving rod 6051 is rotationally connected with the connecting column 602, the moving rod 6051 serves as a connecting component, the other end is connected with the rotating plate 603 through the sliding frame 6052 and the connecting shaft 6053, when the rotating plate 603 rotates, it will push the moving rod 6051 through the moving groove 6031, so that the moving rod 6051 rotates on the connecting column 602, the rotation of the moving rod 6051 drives the sliding frame 6052 to slide on the moving rod 6051, and then transmits the movement through the connecting shaft 6053, the sliding frame 6052 is sleeved outside the moving rod 6051, the connecting shaft 6053 is arranged between the rotating plate 603 and the sliding frame 6052, the sliding frame 6052 is rotationally connected with the connecting shaft 6053, the sliding and rotation of the sliding frame 6052 convert the rotary motion of the rotating plate 603 into the linear motion of the clamping part 606, so that the conversion between different motion forms is realized, the movement of the rotating plate 603 is transmitted through the connecting shaft 6053, the sliding of the sliding frame 6052 on the moving rod 6051 causes the position change of the clamping part 606 connected therewith, so that the adjustment of the clamping part 606 is realized, when it is needed to limit the deflection of the vertical rod 20, the clamping part 606 is driven by the moving part 605 to approach the vertical rod 20, so as to clamp the vertical rod 20, when it is needed to release the vertical rod 20, the clamping part 606 is driven by the sliding frame 6052 to move away from the vertical rod 20.

[0027] In the embodiment of the present application, the clamping part 606 is arranged at the other end of the moving rod 6051, the clamping part 606 comprises an outer clamping plate 6061, an inner clamping plate 6062 and a clamping block 6063, a notch for the rear end of the inner clamping plate 6062 to move is arranged at the rear end of the outer clamping plate 6061, the notch facilitates the cooperation of the inner and outer clamping plates 6061 to change the clamping size, the inner sides of the outer clamping plate 6061 and the inner clamping plate 6062 are fixedly connected with a connecting end 6065, the outer clamping plate 6061 and the inner clamping plate 6062 are rotationally connected through the connecting end 6065, the connecting end 6065 facilitates the rotation of the inner and outer clamping plates 6061 around the connecting end 6065, the front ends of the outer clamping plate 6061 and the inner clamping plate 6062 are screw-connected with the clamping block 6063, the inner side of the clamping block 6063 is fixedly connected with an antiskid pad 6064, the clamping part 606 directly contacts with the vertical rod 20, the position of the clamping part 606 is adjusted by the rotation of the inner and outer clamping plates 6061 around the connecting end 6065, so as to clamp or release the vertical rod 20, thereby limiting the deflection of the vertical rod 20, the clamping block 6063 is made of a shape memory polymer 4D, and the material thereof must meet the microwave absorption characteristics, such as a dielectric constant ≤3.5, a microwave absorption rate <5%, etc., when the clamping block 6063 is deformed by the microwave, radial displacement is generated, the outer clamping plate 6061 and the inner clamping plate 6062 are driven to rotate around the connecting end 6065, so as to clamp or release the vertical rod 20.

[0028] Specifically, the offset limiting device 60 is embedded in the stand pole 20, the motor 6041 drives the screw rod 6042 to rotate, the sliding block 6043 is driven to move along the screw rod 6042, and the rotating plate 603 connected with the sliding block 6043 is driven to rotate, the rotation of the rotating plate 603 drives the sliding frame 6052 to slide on the movable rod 6051 through the movable part 605 and the connecting column 602, so that the position of the clamping part 606 is adjusted, the stand pole 20 is clamped or loosened, and the offset of the stand pole 20 is limited.

[0029] Embodiment two

[0030] Referring to the accompanying Figure 7 The safety system of the cantilevered scaffold construction method provided by the embodiment of the application further includes a verticality monitoring module 801, the verticality monitoring module 801 is embedded with a quantum gyroscope in the stand pole 20, and is used for monitoring the verticality of the stand pole 20 in real time; the quantum gyroscope continuously collects the verticality data of the stand pole 20, provides real-time and high-precision monitoring data, and provides a basis for subsequent control; the monitoring data is transmitted to a regulation and control module 805 through wireless communication technology, so that the data is quickly and accurately transmitted to the control center; the regulation and control module 805 analyzes the data, judges whether the stand pole 20 has a verticality deviation, and identifies the stand pole 20 that needs to be adjusted and the degree of adjustment. According to the analysis result, a corresponding control signal is generated to guide the offset limiting device 60 to make accurate adjustment; the offset limiting device 60 receives the control signal, adjusts the clamping degree, compensates for the verticality deviation, and keeps the stand pole 20 stable. The system supports multiple types of sensor interfaces, and a quantum gyroscope or a MEMS gyroscope can be selected for verticality monitoring according to construction requirements; The offset control process is as follows: the quantum gyroscope collects three-dimensional angular velocity data of the stand pole 20 in real time, transmits the data to the regulation and control module 805 after noise reduction and filtering, the regulation and control module 805 calculates the verticality deviation, and generates a control signal to drive the offset limiting device 60 to make compensation adjustment when the deviation exceeds a set threshold value; The clamping block triggering module 802 is used for controlling the form switching of the clamping part 606 to adapt to the position of the stand pole 20; in order to realize accurate control, a position sensor or a pressure sensor is arranged in the clamping block 6063 to feedback the state of the clamping block 6063 and the size of the clamping force in real time, so that a closed-loop control system is formed, and the accuracy and reliability of the control are further improved; The regulation module 805 is used for storing the adjustment scheme of the offset limiting device 60, and sending control instructions according to matching of real-time monitoring data and the adjustment scheme, for example, when the vertical rod 20 needs to be clamped, the regulation module 805 triggers the form change of the clamping block 6063 to make it close to the vertical rod 20, and when the vertical rod 20 needs to be released, the form change of the clamping block 6063 makes it away from the vertical rod 20.

[0031] The stress display module 803 displays stress by pasting foil strain gauges on key nodes, the strain gauge surface is integrated with LED indicator lights, construction personnel can directly judge the stress state through light color, and meanwhile, strain data is transmitted to the regulation module 805 through a wireless network to generate a three-dimensional stress cloud diagram of the scaffold; The visualization module 804 uses a visualization device to visually process the monitoring data of the stress display module 803 to generate a chart, and construction personnel can directly view the stress change at key nodes, which is simple and intuitive, and the collected stress data is transmitted to a control center in real time, that is, a computer, a notebook computer, a mobile phone or other electronic equipment. The foil strain gauges and observation devices are uniformly arranged at key nodes (such as connection places, support points and stress concentration areas) of the scaffold to ensure covering the whole structure, stress data of all observation points are centrally transmitted to the safety system 80, stress data of each point is synchronously analyzed, the overall stress of the structure is considered, a three-dimensional model of the scaffold is established, stress data on the three-dimensional model is dynamically updated with continuous input of real-time data, the current stress distribution is reflected, the model can be enlarged or reduced by the construction personnel to view the stress condition of a specific area in detail, and the model can be rotated or moved to observe the stress distribution from different angles. The regulation module 805 is used for storing the adjustment scheme of the offset limiting device 60, and sending control instructions according to matching of real-time monitoring data and the adjustment scheme, and PID control, fuzzy control or the like can be selected for control.

[0032] In the embodiment of the application, the detailed steps of the clamping block triggering module 802 for controlling the form of the clamping piece 606 are as follows: Before formal use, simulation experiments are performed to test the influence of the microwave emitter on surrounding electronic elements, the position, power and frequency of the microwave emitter are adjusted according to the test results, real-time monitoring equipment is provided to monitor the working state of the microwave emitter and the surrounding electronic environment, and an emergency plan is formulated, once abnormal conditions are found, measures are taken immediately, the offset limiting device 60 is adjusted first, and then the clamping block 6063 is deformed. Specifically, step a, according to the material properties of the stand 20 and the clamping block 6063, a suitable microwave transmitter is designed, and the microwave parameters are determined to better excite the clamping block 6063, and an unmanned aerial vehicle loaded with a microwave transmitter is used to provide energy stimulation to trigger the deformation of the shape memory polymer of the clamping block 6063; Step b, the unmanned aerial vehicle moves to the vicinity of the target stand 20 through the regulation system 80, uses the sensors and positioning system on the unmanned aerial vehicle, such as the unmanned aerial vehicle obtains the real-time distance from the target stand through the UWB ultra-wide band positioning technology, and preloads the BIM model, uses the point cloud data thereof combined with the positioning data, and matches the actual scene through the ICP algorithm to accurately move to the vicinity of the target stand 20, ensure that only the part that needs to be deformed is stimulated, and prepare for point heating, and the microwave transmitter of the unmanned aerial vehicle is equipped with a conical antenna, the conical part of the conical antenna is provided with a copper mesh shielding cover, and the microwave emission is triggered in sequence through a time-sharing control protocol to avoid spatial interference of microwave signals of multiple unmanned aerial vehicles and avoid possible interference of microwave with surrounding electronic equipment or accidental triggering of adjacent clamping blocks; Step c, the shape memory polymer is locally heated by using microwave energy, the shape memory polymer absorbs microwave energy to trigger its morphological change, the power and irradiation time of the microwave are controlled according to the preset parameters to ensure uniform heating temperature rise, the shape memory polymer absorbs energy to reach the phase change threshold through microwave irradiation, and the clamping block is deformed, which is triggered according to the deformation reaction condition of the shape memory polymer, the clamping block 6063 is deformed, the shape switching of the clamping piece 606 is realized, the microwave power or irradiation time is adjusted according to the morphological change, and if multiple stands 20 need to be adjusted, multiple unmanned aerial vehicles are independently positioned and operated in parallel until the adjustment of the stand 20 is completed; Step d, after the microwave is turned off, the shape memory polymer cools down and keeps the shape in the new shape, and the clamping piece 606 works stably in the new shape.

[0033] In the embodiment of the application, the stress distribution of the stress display module 803 is displayed in real time through a color gradient, and the detailed stress display operation is as follows: Step A, epoxy resin is used to paste foil strain gauges at key nodes of the cantilevered scaffold, and stress monitoring points are established to provide a basis for visual display; Step B, the scaffold receives stress during construction, the foil strain gauge surface is integrated with LED indicator lights, and construction personnel can intuitively judge the stress state through light color; Step C, the strain data monitored by the foil strain gauge is transmitted to the visualization module 804 through a wireless network to generate a three-dimensional stress diagram of the scaffold.

[0034] The detailed use steps of the safety system are as follows: Install the verticality monitoring module 801 in the stand, install the offset limiting device 60, the clamping block triggering module 802, the stress display module 803 and the visualization module 804, all sensors are calibrated initially to ensure data accuracy, set the parameters of the control module 805, including threshold, control logic, etc., including the deformation threshold and pressure threshold of the clamping block 6063, set up the wireless communication network to ensure smooth data transmission, input the three-dimensional model of the scaffold and the key node information, conduct simulation experiments to test the response and cooperative work of each part of the system, and adjust the parameters of the microwave transmitter to ensure effective control of the clamping block 6063; A shock pad such as silicone is provided outside the quantum gyroscope for physical shock absorption to reduce signal offset. An electromagnetic shielding layer is provided between the quantum gyroscope shell and the shock pad to block low-frequency electromagnetic interference generated by construction equipment. The quantum gyroscope collects angular velocity data in real time, which is transmitted to the control module 805 after noise reduction processing. The foil strain gauge displays the stress distribution at the key nodes in real time through wireless communication technology. The control module 805 performs Kalman filtering on the collected angular velocity data to eliminate noise, obtains the real-time tilt angle by integrating the angular velocity, judges whether there is a verticality deviation, calculates the stress on the current node, and displays it in the form of numerical value, chart or color bar, etc. According to the verticality analysis result, a control signal is generated to guide the offset limiting device 60 to make accurate adjustment and compensate for the verticality deviation. The control module 805 triggers the clamping block triggering module 802 to control the shape switching of the clamping piece 606. The unmanned aerial vehicle carries a microwave transmitter to locally heat the shape memory polymer to realize shape change. The pressure value and deformation value of the clamping block 6063 are monitored in real time. The deformation feedback data is compared with the preset threshold value. If the threshold value is exceeded, the microwave power is adjusted using the PID algorithm to avoid exceeding the threshold value. The deformation value is calculated by embedding the fiber Bragg grating sensor in the clamping block 6063 and measuring the reflection spectrum change of the fiber Bragg grating to calculate the deformation degree of the clamping block 6063. The visualization module 804 processes the monitoring data of the stress display module 803. The construction personnel views the stress change at the key nodes through the chart generated by the visualization module 804 to understand the stress distribution. The control module 805 matches the real-time monitoring data with the adjustment scheme and continuously sends control instructions. The system records all operations and monitoring data for subsequent analysis and optimization. When the monitoring data exceeds the preset threshold value, the system sends a warning or alarm signal. The construction personnel takes corresponding measures according to the alarm information, starts the emergency plan, conducts on-site disposal and remote support, records the accident information, and analyzes and summarizes it.

[0035] The above merely provides the preferred embodiment of the present application, but is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall fall into the scope of protection of the present application.

[0036] It should be apparent that the specific order and hierarchy of steps in the processes disclosed are examples of exemplary methods. Based upon design preferences, it should be understood that the specific order and hierarchy of steps in the processes can be rearranged while remaining within the scope of the present disclosure. The accompanying method claims present elements of the various steps in exemplary order and are not intended to be limited to the specific order or hierarchy presented.

[0037] In the above detailed description, various features are grouped together in single embodiments for the purpose of streamlining the disclosure. This disclosed approach is not to be interpreted as reflecting an intention that the embodiments of the claimed subject matter require more features than are expressly recited in each claim. Rather, as the appended claims reflect, inventive subject matter lies in fewer than all features of the disclosed single embodiments. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate preferred embodiment.

[0038] Those skilled in the art will further understand that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein can be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans can implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

[0039] The steps of a method or algorithm described in connection with the embodiments disclosed herein can be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such that the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium can be integral to the processor. The processor and the storage medium can reside in an ASIC. The ASIC can reside in a user terminal. In the alternative, the processor and the storage medium can reside as discrete components in a user terminal.

[0040] For a software implementation, the techniques described herein can be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The software codes can be stored in memory units and executed by processors. The memory unit can be implemented within the processor or external to the processor, in which case it can be communicatively coupled to the processor via various means as is known in the art.

[0041] The above description includes one or more examples of the embodiments. Of course, not all possible combinations of components or methods described above can be claimed as embodiments. One of ordinary skill in the art can recognize that modifications and variations of the described embodiments can be made without departing from the scope of the present disclosure. It is therefore intended that the embodiments described herein be considered in all respects as illustrative and not restrictive, particularly as numerous modifications and further embodiments can become apparent to those skilled in the art. Accordingly, the scope of the present disclosure is intended to be defined by the following claims rather than the description. Moreover, the use of the terms "first", "second", etc. do not denote any order or importance, but rather the terms are used to distinguish one element from another. Furthermore, the use of the terms "including", "containing", etc. are meant to encompass the terms "consisting of" and / or "consisting essentially of". Moreover, the use of the term "or" is meant to encompass "and / or", unless otherwise indicated.

Claims

1. A method for constructing cantilevered scaffolding, characterized in that, Includes the following steps: S1, high-strength wall ties are pre-embedded in the building to serve as support points for the cantilever frame; S2 uses carbon fiber composite materials to make cantilevered scaffolding. The cantilevered frame is firmly connected to the building structure to form a stable support system. S3, arrange the position of the uprights (20) reasonably, connect the horizontal bar (10) and the uprights (20) with the offset limiting device (60), and set the vertical scissor bracing (30) and the horizontal scissor bracing (40) between the horizontal bar (10) and the uprights (20). S4, using a cable (701) with a built-in fiber optic sensor to connect the cantilever to the building, and laying a walkway slab (50) at the top of the cantilever. S5. After the cantilever scaffolding is installed, the verticality of the uprights (20) and the overall condition of the scaffolding are monitored in real time. The real-time monitoring data is fed back to the offset limiting device (80) through the control module (805) until the scaffolding is used and then dismantled and recycled in sequence.

2. The method for constructing cantilever scaffolding according to claim 1, characterized in that, The offset limiting device (60) in step S3 is embedded inside the upright (20). The offset limiting device (60) includes a mounting plate (601) for connecting to the upright (20), a driving member (604) for driving the rotating plate (603) to rotate, and a clamping member (606) for clamping the upright (20). The rotating plate (603) is a ring design. The outer side of the rotating plate (603) is provided with a movable groove (6031) for installing the movable member (605). The front side of the mounting plate (601) is fixed with a connecting post (602) for connecting the movable member (605) and the mounting plate (601).

3. The method for constructing cantilevered scaffolding according to claim 2, characterized in that, The surface of the upright (20) is provided with mounting holes (201) for mounting the offset limiting device (60). The mounting plate (601) is screwed to the upright (20). The driving component (604) includes a motor (6041), a lead screw (6042), and a sliding block (6043). The motor (6041) is screwed to the mounting plate (601). The output end of the motor (6041) is connected to the lead screw (6042) for transmission. The lead screw (6042) is threaded to the sliding block (6043). The other side of the sliding block (6043) is screwed to the rotating plate (603). The sliding block (6043) is connected to the rotating plate (603) by screws.

4. The method for constructing cantilevered scaffolding according to claim 3, characterized in that, The movable component (605) includes a movable rod (6051), a sliding frame (6052), and a connecting shaft (6053). One end of the movable rod (6051) is rotatably connected to the connecting column (602). The sliding frame (6052) is sleeved on the outside of the movable rod (6051). The connecting shaft (6053) is disposed between the rotating plate (603) and the sliding frame (6052). The sliding frame (6052) is rotatably connected to the connecting shaft (6053).

5. A method for constructing cantilevered scaffolding according to claim 4, characterized in that, The clamping member (606) is disposed at the other end of the movable rod (6051). The clamping member (606) includes an outer clamping plate (6061), an inner clamping plate (6062), and a clamping block (6063). The rear end of the outer clamping plate (6061) is provided with a slot for the rear end of the inner clamping plate (6062) to move. The inner sides of the outer clamping plate (6061) and the inner clamping plate (6062) are fixed with a connecting end (6065). The outer clamping plate (6061) and the inner clamping plate (6062) are rotatably connected through the connecting end (6065). The front ends of the outer clamping plate (6061) and the inner clamping plate (6062) are both screwed with a clamping block (6063).

6. A safety system for a cantilever scaffolding construction method, applied to the cantilever scaffolding construction method according to any one of claims 1 to 5, characterized in that, Includes a verticality monitoring module (801), which uses a quantum gyroscope embedded in the pole (20) to monitor the verticality of the pole (20) in real time and is wirelessly connected to the offset limiting device (60); Clamping block triggering module (802), the clamping block triggering module (802) is used to control the shape switching of the clamping member (606) to adapt to the position of the upright (20); The stress display module (803) displays the stress distribution in real time by attaching foil strain gauges to key nodes of the cantilever scaffold; The visualization module (804) uses a visualization device to visualize the monitoring data of the stress display module (803); The control module (805) is used to store the adjustment scheme of the offset limiting device (60) and send control commands according to the real-time monitoring data and the adjustment scheme.

7. The safety system for a cantilever scaffolding construction method according to claim 6, characterized in that, The detailed steps of the clamping block trigger module (802) in controlling the shape of the clamping member (606) are as follows: Step a, using a drone equipped with a microwave transmitter, provides energy stimulation to trigger deformation of the shape memory polymer clamping block (6063); Step b: The drone moves to the vicinity of the target pole (20) through the control system to prepare for fixed-point heating; Step c: The shape memory polymer absorbs microwave energy, its temperature rises, and it triggers the deformation of the clamping block (6063); In step d, after the microwave is turned off, the shape memory polymer cools in its new morphology and retains its shape.

8. The safety system for a cantilever scaffolding construction method according to claim 7, characterized in that, The stress distribution of the stress display module (803) is displayed in real time through the stress gradient. The detailed stress display operation is as follows: Step A: Attach foil strain gauges to key nodes of the cantilever scaffolding to establish stress monitoring points and provide a basis for visualization. Step B: During the construction process, the scaffolding is subjected to stress. The foil strain gauges have integrated LED indicator lights on their surface, allowing construction workers to visually judge the stress state by the color of the lights. Step C: The strain data monitored by the foil strain gauge is transmitted to the visualization module (804) via a wireless network to generate a three-dimensional stress map of the scaffold.

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