Adjustable vertical rod positioning device on cantilever outer frame I-shaped steel and construction method of adjustable vertical rod positioning device

Abstract

The invention discloses an adjustable vertical rod positioning device on cantilever outer frame I-shaped steel and a construction method of the adjustable vertical rod positioning device, and relates to the technical field of cantilever scaffolds.The adjustable vertical rod positioning device comprises at least one connecting piece, a cross-shaped sliding table, a strain sensor, a control module and an upper computer, the cross-shaped sliding table is arranged at the top of the connecting piece, and the top of the cross-shaped sliding table is connected with the bottom of a vertical rod; the strain sensor is arranged on the vertical rod to obtain strain data, the cross sliding table is used for adjusting the position of the vertical rod according to an instruction issued by the upper computer to the control module and correspondingly adjusting the position of the vertical rod, mechanical state changes of the vertical rod are collected in real time through the strain sensor, and a closed-loop feedback control mechanism is combined. And when positioning deviation or abnormal deformation is monitored, the cross sliding table is driven to carry out position compensation and leveling, so that structural deformation caused by inaccurate positioning is effectively inhibited, and the controllability and safety of cantilever outer frame construction are improved.

Description

Technical Field

[0001] This invention relates to the field of cantilever scaffolding technology, specifically to an adjustable upright positioning device for an I-beam of a cantilever scaffold and its construction method. Background Technology

[0002] In building construction, the construction of cantilevered scaffolding places extremely high demands on the precision and stability of the supporting structure. The uprights, as key vertical load-bearing components in the scaffolding system, directly affect the overall mechanical performance and safety of the structure due to their accurate positioning. However, in actual construction, the uprights are often difficult to position precisely due to various factors, leading to a series of problems such as structural deformation and uneven load distribution, seriously affecting construction quality and safety. Especially under cantilever conditions, positioning deviations significantly amplify structural deformation and internal force redistribution, further increasing the risk of instability. The causes of inaccurate upright positioning are complex and can be mainly summarized as follows:

[0003] I. Systematic errors in the installation and positioning process: Traditional construction relies heavily on manual layout and experience-based positioning. Due to factors such as the accuracy of measuring tools, the technical level of operators, and line-of-sight judgment, initial positioning deviations are easily generated. In cantilevered sections, the positioning benchmark is difficult to transfer, which further amplifies the cumulative error.

[0004] II. Inherent defects of traditional positioning piles: Most existing positioning piles are fixed designs, lacking an adjustable mechanism, making it impossible to make fine adjustments during installation to compensate for deviations, and also difficult to adapt to dynamically changing working conditions on site.

[0005] Third, lack of real-time monitoring and feedback methods: After the pole is installed, if its stress state and spatial position cannot be continuously monitored, it is difficult to detect local stress concentration or deformation caused by positioning deviation in a timely manner, and it is even more impossible to implement active correction.

[0006] The aforementioned problems cause the uprights to easily undergo unexpected deformation under stress, which not only affects the overall rigidity and stability of the scaffolding but may also trigger a chain reaction, even leading to safety accidents in severe cases. Therefore, in the construction of cantilevered scaffolding, how to achieve precise positioning and dynamic adjustment of the uprights, and how to monitor and control their deformation in real time, has become a key problem that urgently needs to be solved in the current construction technology field. Summary of the Invention

[0007] This invention provides an adjustable upright positioning device and its construction method for an I-beam of a cantilever scaffold. By using strain sensors to collect real-time changes in the mechanical state of the uprights and combining them with a closed-loop feedback control mechanism, when a positioning deviation or abnormal deformation is detected, the cross slide is driven to perform position compensation and leveling, thereby effectively suppressing structural deformation caused by inaccurate positioning and improving the controllability and safety of cantilever scaffold construction.

[0008] An adjustable upright positioning device for an I-beam of a cantilevered scaffold includes:

[0009] At least one connector is provided, which can slide along the flange of the cantilever steel beam and is provided with a locking mechanism between it and the flange; the locking mechanism allows the connector to slide freely relative to the flange in the unlocked state, and fixes the connector at any position on the flange in the locked state.

[0010] It also includes a cross slide, which is located on top of the connector and the top of the cross slide is connected to the bottom of the upright; the cross slide has two mutually perpendicular displacement directions for adjusting the position of the upright;

[0011] Strain sensors are installed on the uprights of the scaffolding to acquire strain data;

[0012] The control module is connected in communication with the cross slide and strain sensor, and is used to control the displacement of the cross slide and collect strain data according to control commands.

[0013] The host computer communicates with the control module to analyze strain data and generate control commands, which are then sent to the control module.

[0014] Furthermore, the connector includes a locking element whose shape matches the shape of the cantilever beam flange, and a locking mechanism is located on the bottom of the locking element near the flange.

[0015] Furthermore, the locking mechanism includes at least two handle screws located at the bottom of the connector. When the handle screws are threadedly connected to the connector and in the locked state, the handle screws abut against the flange of the cantilever beam. When the handle screws are threadedly connected to the connector and in the unlocked state, the handle screws do not contact the flange of the cantilever beam.

[0016] Furthermore, the cross slide includes a base plate disposed on top of the card, and also includes a cross slider. The first slider of the cross slider is slidably fitted onto the top of the base plate, and the second slider of the cross slider is slidably fitted onto the top plate. The second slider is stacked on top of the first slider, and the positions of the first slider and the second slider are perpendicular to each other.

[0017] Furthermore, the first linear drive mechanism includes a first positioning plate and a second positioning plate, wherein the first positioning plate is disposed on one side of the second slider, the second positioning plate is disposed on one side of the base plate, and a first linear driver is disposed on the second positioning plate. The telescopic rod of the first linear driver is connected to the first positioning plate and is used to drive the cross slider to move along the direction restricted by the clamp.

[0018] Furthermore, the second linear drive mechanism includes a third positioning plate and a fourth positioning plate, wherein the third positioning plate is disposed on one side of the top plate, the fourth positioning plate is disposed on one side of the first slider, and a second linear driver is disposed on the fourth positioning plate. The telescopic rod of the second linear driver is connected to the third positioning plate and is used to drive the top plate to move along the direction limited by the second slider.

[0019] A method for constructing a cantilevered scaffold includes the following steps:

[0020] Based on the structural design drawings of the scaffolding, extract the spatial coordinate data of key nodes and construct a basic topology model that reflects the ideal geometric shape of the scaffolding.

[0021] During the erection and use of scaffolding, a network of strain sensors arranged at key sections of the uprights is used to simultaneously collect surface strain data at each measuring point.

[0022] Based on surface strain data, the real-time displacement of each node of the scaffold is calculated by using the discrete integral algorithm, a real-time deformation model is constructed, and the spatial coordinates of the real-time deformation model are compared with the basic topology model to generate a shape deviation vector.

[0023] Based on the shape deviation vector, the bottom compensation displacement required to eliminate the deviation is calculated, and the compensation displacement is converted into a control command for the cross slide to drive the cross slide to move until the shape deviation of the scaffolding returns to the preset normal range.

[0024] Furthermore, the data acquisition and processing method of the strain sensor network is as follows: on multiple height sections of the scaffolding uprights, strain sensors are symmetrically arranged along the circumference to monitor the surface strain in the length and width directions of the uprights respectively. After Kalman filtering and noise reduction processing of the collected strain data, the curvature of the monitored section in the length direction is calculated.

[0025] Furthermore, the calculation process for the morphological deviation vector includes:

[0026] Based on curvature, the rotation angle and horizontal displacement of each node relative to the previous node are calculated using cumulative integrals.

[0027] The calculated horizontal displacements of each node are superimposed onto the current coordinates of the cross slide to construct a real-time deformation model;

[0028] The shape deviation vector is obtained by subtracting the coordinates of the top-level node of the real-time deformation model from the coordinates of the corresponding node of the basic model.

[0029] The beneficial effects of the above-described technical solutions provided in the embodiments of the present invention include at least the following:

[0030] 1. By combining a cross slide and strain sensors, deformation deviation can be detected and calculated in real time when the uprights are not positioned accurately. Then, by controlling and adjusting the position of the uprights, deformation caused by inaccurate upright positioning can be effectively prevented, ensuring the stability and safety of the scaffolding structure.

[0031] 2. The automatic adjustment function reduces manual intervention and avoids errors that may occur when manually adjusting the poles. Simultaneously, relying on real-time feedback from strain sensors, it can automatically adjust according to actual deformation, greatly improving construction accuracy and work efficiency.

[0032] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings.

[0033] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0034] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0035] Figure 1 This is a schematic diagram showing the positional relationship of the adjustable pole positioning device deployed on the cantilever steel beam according to an embodiment of the present invention.

[0036] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0037] Figure 3 This is a schematic diagram showing the positional relationship between the connector and the cross slide table disclosed in an embodiment of the present invention;

[0038] Figure 4 This is a schematic diagram of the positional relationship structure of the cross slide disclosed in an embodiment of the present invention;

[0039] Figure 5 This is a communication block diagram of the adjustable pole positioning device disclosed in an embodiment of the present invention;

[0040] Figure 6 This is a flowchart of the cantilever scaffolding construction method disclosed in an embodiment of the present invention.

[0041] Figure label:

[0042] 1. Exterior wall; 2. Cantilever steel beam; 21. Web plate; 22. Flange; 3. Scaffolding; 31. Upright; 32. Base; 33. Horizontal bar; 4. Connector; 41. Clip; 42. Handle screw; 5. Cross slide; 51. Base plate; 52. Cross slider; 521. First slider; 522. Second slider; 53. Top plate; 54. First linear drive mechanism; 541. First positioning plate; 542. Second positioning plate; 543. First linear actuator; 55. Second linear drive mechanism; 551. Third positioning plate; 552. Fourth positioning plate; 553. Second linear actuator; 6. Strain sensor; 7. Control module; 8. Host computer. Detailed Implementation

[0043] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0044] like Figures 1-5 As shown, the adjustable upright 31 positioning device includes a connector 4, a cross slide 5, a strain sensor 6, a control module 7, and a host computer 8. The connector 4 has at least one component, and a cross slide 5 is located on the top of the connector 4. The top of the cross slide 5 is connected to the bottom of the upright 31. The strain sensor 6 is installed on the upright 31 to acquire strain data. The cross slide 5 is used to adjust the position of the upright 31 according to the instructions sent from the host computer 8 to the control module 7. This adjustment effectively prevents deformation caused by inaccurate positioning of the upright 31, ensuring the stability and safety of the scaffolding structure 3.

[0045] The connector 4 includes a C-shaped clip 41 made of 45 steel. The shape of the clip 41 matches the shape of the flange 22 of the cantilever steel beam 2 and can be wrapped around the outside of the flange 22 of the cantilever steel beam 2. It should be noted that the clip 41 does not contact the web 21 of the cantilever steel beam 2, and there is a certain amount of gap between it and the web 21. The connector 4 can slide along the flange 22 of the cantilever steel beam 2, and a locking mechanism is provided between it and the flange 22. In the unlocked state, the locking mechanism allows the connector 4 to slide freely relative to the flange 22, and in the locked state, it fixes the connector 4 at any position on the flange 22.

[0046] like Figure 3As shown, the locking mechanism includes at least two handle screws 42, which are disposed at the bottom of the connector 4. When the handle screws 42 are threadedly connected to the connector 4 and are in the locked state, the handle screws 42 abut against the flange 22 of the cantilever beam 2. When the handle screws 42 are threadedly connected to the connector 4 and are in the unlocked state, the handle screws 42 are not in contact with the flange 22 of the cantilever beam 2.

[0047] During construction, after the cantilever steel beam 2 is installed on the outer wall 1, the handle screw 42 needs to be loosened to unlock the clip 41. After adjusting the clip 41 to the position corresponding to the upright 31 of the scaffold 3, the handle screw 42 is tightened to fix the position of the clip 41.

[0048] After the position of the clamp 41 is fixed, the scaffold 3 can be installed. Next, the uprights 31 of the scaffold 3 need to be installed. It should be noted that the cross slide 5 needs to be kept at the zero point position at this time. The zero point position is defined as the initial position. At this time, the geometric center of the top plate 53 of the cross slide 5 and the geometric center of the clamp 41 are coincident in the z-axis direction.

[0049] like Figures 2-4 As shown, the cross slide table 5 has two mutually perpendicular displacement directions for adjusting the position of the upright 31. The cross slide table 5 includes a base plate 51, which is disposed on the top of the clamp 41, and also includes a cross slider 52. The first slider 521 of the cross slider 52 is slidably fitted on the top of the base plate 51, and the second slider 522 of the cross slider 52 is slidably fitted on the top plate 53. The fitting structure adopts a dovetail groove structure or a T-groove structure. The second slider 522 is stacked on top of the first slider 521, and the positions of the first slider 521 and the second slider 522 are perpendicular to each other. The cross slide table 5 also includes a first linear drive mechanism 54 and a second linear drive mechanism 55 for driving its movement.

[0050] The first linear drive mechanism 54 includes a first positioning plate 541 and a second positioning plate 542. The first positioning plate 541 is disposed on one side of the second slider 522, and the second positioning plate 542 is disposed on one side of the base plate 51. A first linear actuator 543 is disposed on the second positioning plate 542. The telescopic rod of the first linear actuator 543 is connected to the first positioning plate 541 and is used to drive the cross slider 52 to move in the direction restricted by the clamp 41. The second linear drive mechanism 55 includes a third positioning plate 551 and a fourth positioning plate 552. The third positioning plate 551 is disposed on one side of the top plate 53, and the fourth positioning plate 552 is disposed on one side of the first slider 521. A second linear actuator 553 is disposed on the fourth positioning plate 552. The telescopic rod of the second linear actuator 553 is connected to the third positioning plate 551 and is used to drive the top plate 53 to move in the direction restricted by the second slider 522. The first linear actuator 543 and the second linear actuator 553 are servo electric cylinders.

[0051] The signal input terminal of the control module 7 is communicatively connected to the signal output terminal of the strain sensor 6 and the host computer 8. The signal output terminal of the control module 7 is communicatively connected to the signal input terminals of the first linear driver 543 and the second linear driver 553, respectively. The host computer 8 is used to analyze the signals collected by the strain sensor 6 and obtain the execution instructions to control the first linear driver 543 and the second linear driver 553. After the execution instructions are sent to the control module 7, the control module 7 controls the first linear driver 543 and / or the second linear driver 553 to execute.

[0052] like Figure 2 As shown, the base 32 of the upright 31 of the scaffolding 3 is detachably connected to the top of the top plate 53 of the cross slide 5, such as by threaded connection, flange connection or other detachable connection method. After the upright 31 of the scaffolding 3 is connected to the top plate 53 of the cross slide 5 through the base 32, other horizontal bars 33 are installed and erected layer by layer. During the erection process, the strain sensor 6 network based on strain sensors 6 synchronously collects the strain data of the upright 31 and uses this as the basis for adjustment to adjust the position of the upright 31. The process is as follows:

[0053] like Figure 5 and 6 As shown, a method for constructing a cantilevered scaffold, using an adjustable upright positioning device 31, includes the following steps:

[0054] S1. Based on the structural design drawings of scaffolding 3, extract the spatial coordinate data of key nodes and construct a basic topology model that reflects the ideal geometric shape of scaffolding 3.

[0055] Extract the total number of nodes from the structural design drawings of scaffold 3. Nodes include the intersection of uprights 31 and horizontal bars 33, the step distance of each layer of uprights 31 (the step distance being the height interval), and the outer diameter of the steel pipe, used for subsequent stress transformation and deformation. Define the coordinate origin as the center point of the top plate 53 of the cross slide 5. Discretize scaffold 3 into a series of spatial nodes. Under ideal conditions, the first... The coordinates of node 31 of the floor support should be: This ultimately forms a standard matrix that stores the ideal coordinates of all nodes, where, For three-dimensional coordinate vectors, The ideal spatial coordinates of the node For the node's index number, This refers to the step distance (or segment length).

[0056] S2, during the erection and use of scaffolding 3, the surface strain data of each measuring point is collected synchronously by using a network of strain sensors 6 arranged at the key sections of the uprights 31.

[0057] The strain sensor 6 adopts a full-bridge resistance strain gauge or other sensors that can achieve equivalent functions. The strain sensor 6 has a monitoring section at the bottom of each pole 31 and at a height of 2 to 3 steps. Each monitoring section needs to be symmetrically arranged with a set of (2 or 4) strain gauges along the circumference.

[0058] The data acquisition and processing method of the strain sensor network is as follows: Strain sensors 6 are symmetrically arranged along the circumference on multiple height sections of the uprights 31 of the scaffold 3 to monitor the surface strain in the length direction (z-axis) and width direction (x-axis or y-axis) of the uprights 31, respectively. The coordinate system is as follows: Figures 1-4 As shown, the curvature of the monitoring section in the length direction is calculated after the collected strain data is denoised by Kalman filtering.

[0059] The curvature of the upright 31 in the x-axis direction is calculated as follows: In the formula, For height The curvature of the cross section at that point , The height of the pole is 31. The tensile and compressive strain values ​​of the cross section on opposite sides in the x-axis direction. The outer diameter of upright 31 of scaffolding 3; the curvature of upright 31 in the y-axis direction is calculated as follows: In the formula, For height The curvature of the cross section at that point , The height of the pole is 31. The tensile and compressive strain values ​​of the cross section on opposite sides in the y-axis direction. The outer diameter of the scaffolding upright 31 is 3.

[0060] S3, based on surface strain data, uses the discrete integral algorithm to invert and calculate the real-time displacement of each node of scaffold 3, constructs a real-time deformation model, and compares the spatial coordinates of the real-time deformation model with the basic topology model to generate a morphological deviation vector.

[0061] The calculation process for the morphological deviation vector includes:

[0062] Based on curvature, the rotation angle and horizontal displacement of each node relative to the previous node are calculated using cumulative integrals.

[0063] The angle is calculated using:

[0064] In the formula, For the first The cross-sectional rotation angle of each node, for Take an infinitesimally small length unit along the axial direction. For the cross-sectional rotation angle of the previous node, For height The curvature of the cross section at that point For the first The absolute height of each node For the first The absolute height of each node These are the measured curvature values ​​of the current node and the previous node, respectively. The step distance (or segment length) is... vertical distance This is a numerical approximation of the integral. It assumes that the curvature changes linearly within this small segment, and its cumulative effect is equal to the average curvature multiplied by the length, thus yielding the angle increment produced by this segment.

[0065] The displacement is calculated using:

[0066] In the formula, For the first The horizontal displacement of each node represents the height of pole 31. The absolute distance from the ideal vertical centerline For the horizontal displacement of the previous node, A continuous rotation angle function that varies with altitude. for Take an infinitesimally small length unit along the axial direction. for Within the height of the segment, the tilting of the upright 31 resulted in an increase in displacement in the horizontal direction.

[0067] The calculated horizontal displacements of each node are superimposed on the current coordinates of the cross slide 5 to construct a real-time deformation model. Specifically, the calculated length and width displacements are superimposed on the current absolute position of the cross slide 5 to obtain the true coordinates and construct the real-time deformation model.

[0068] The shape deviation vector is obtained by subtracting the coordinates of the top-level node of the real-time deformation model from the coordinates of the corresponding node of the basic model.

[0069]

[0070] In the formula, For the top deviation vector, and The absolute deviation value of the monitoring point at the top of the scaffold 3 in the horizontal coordinate system. and To reconstruct coordinates in real time, and Coordinates of the basic topology model;

[0071] Where: If This indicates that the top of scaffolding 3 is facing... A deviation in the positive direction of the axis manifests as a tilt to the left or right; if This indicates that the top of scaffolding 3 is facing... A misalignment of the axis in the opposite direction manifests as a tilt to the left or right; if This indicates that the top of scaffolding 3 is facing... A deviation in the positive direction of the axis manifests as an outward tilt away from the outer wall 1; if This indicates that the top of scaffolding 3 is facing... The axis shifts in the opposite direction, which manifests as the outer wall 1 tilting inward.

[0072] S4. Based on the shape deviation vector, calculate the bottom compensation displacement required to eliminate the deviation, and convert the compensation displacement into a control command for the cross slide 5 to drive the cross slide 5 to move until the shape deviation of the scaffold 3 returns to the preset normal range.

[0073] First linear drive mechanism 54 Shaft) Adjustment amount:

[0074] Adjustment amount of the second linear drive mechanism 55 (X-axis):

[0075] In the formula, For the first linear drive mechanism 54 ( (shaft) adjustment amount, Adjustment amount for the second linear drive mechanism 55 (X-axis), This is the proportionality coefficient, and its range of values ​​is: , and This represents the absolute deviation of the monitoring point at the top of the scaffold 3 in the horizontal coordinate system.

[0076] The host computer 8 calculated the result. and The control command is sent to the control module 7, and the control module 7 controls the first linear drive 54 corresponding to the first linear drive mechanism 54 and the second linear drive 55 corresponding to the second linear drive mechanism 55 to perform the corresponding extension and retraction actions.

[0077] It should be understood that the specific order or hierarchy of steps in the disclosed process is an example of an exemplary method. Based on design preferences, it should be understood that the specific order or hierarchy of steps in the process may be rearranged without departing from the scope of this disclosure. The appended method claims provide elements of various steps in an exemplary order and are not intended to limit the scope to the specific order or hierarchy described.

[0078] In the detailed description above, various features are combined together in a single embodiment to simplify this disclosure. This approach to disclosure should not be construed as reflecting an intention that embodiments of the claimed subject matter require more features than are explicitly stated in each claim. Rather, as reflected in the appended claims, the invention is presented with fewer features than all of the features in a single disclosed embodiment. Therefore, the appended claims are hereby explicitly incorporated into the detailed description, with each claim representing a separate preferred embodiment of the invention.

[0079] Those skilled in the art will also understand that the various illustrative logic blocks, modules, circuits, and algorithm steps described in conjunction with the embodiments herein can be implemented as electronic hardware, computer software, or a combination thereof. To clearly illustrate the interchangeability between hardware and software, the various illustrative components, blocks, modules, circuits, and steps described above are generally described in terms of their functionality. Whether such functionality is implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system. Those skilled in the art can implement the described functionality in alternative ways for each specific application; however, such implementation decisions should not be construed as departing from the scope of this disclosure.

[0080] The steps of the methods or algorithms described in conjunction with the embodiments herein can be directly embodied in hardware, software modules executed by a processor, or a combination thereof. The software modules can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disks, removable disks, CD-ROMs, or any other form of storage medium well known in the art. An exemplary storage medium is connected to the processor, enabling the processor to read information from and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and storage medium can reside in an ASIC. The ASIC can reside in a user terminal. Alternatively, the processor and storage medium can exist as discrete components in the user terminal.

[0081] For software implementation, the techniques described in this application can be implemented using modules (e.g., procedures, functions, etc.) that perform the functions described in this application. This software code can be stored in memory units and executed by a processor. The memory units can be implemented within the processor or outside the processor; in the latter case, they are communicatively coupled to the processor via various means, as is well known in the art.

[0082] The foregoing description includes examples of one or more embodiments. It is certainly impossible to describe all possible combinations of components or methods in order to describe the above embodiments, but those skilled in the art will recognize that the various embodiments can be further combined and arranged. Therefore, the embodiments described herein are intended to cover all such changes, modifications, and variations that fall within the scope of the appended claims. Furthermore, the term "comprising" as used in the specification or claims is interpreted in a manner similar to the term "including," as interpreted when used as a conjunction in the claims. Additionally, the use of any term "or" in the specification of the claims is intended to mean "non-exclusive or."

Claims

1. An adjustable upright positioning device for an I-beam of a cantilevered scaffold, characterized in that, include: At least one connector is provided, which can slide along the flange of the cantilever steel beam and is provided with a locking mechanism between it and the flange; the locking mechanism allows the connector to slide freely relative to the flange in the unlocked state, and fixes the connector at any position on the flange in the locked state. It also includes a cross slide, which is located on top of the connector and the top of the cross slide is connected to the bottom of the upright; the cross slide has two mutually perpendicular displacement directions for adjusting the position of the upright; Strain sensors are installed on the uprights of the scaffolding to acquire strain data; The control module is connected in communication with the cross slide and strain sensor, and is used to control the displacement of the cross slide and collect strain data according to control commands. The host computer communicates with the control module to analyze strain data and generate control commands, which are then sent to the control module.

2. The adjustable pole positioning device as described in claim 1, characterized in that, The connector includes a locking element whose shape matches the shape of the cantilever beam flange, and a locking mechanism is located on the bottom of the locking element near the flange.

3. The adjustable pole positioning device as described in claim 2, characterized in that, The locking mechanism includes at least two handle screws located at the bottom of the connector. When the handle screws are threadedly connected to the connector and in the locked state, the handle screws abut against the flange of the cantilever beam. When the handle screws are threadedly connected to the connector and in the unlocked state, the handle screws do not contact the flange of the cantilever beam.

4. The adjustable pole positioning device as described in claim 2, characterized in that, The cross slide includes a base plate disposed on top of the clamp, and a cross slider. The first slider of the cross slider is slidably fitted onto the top of the base plate, and the second slider of the cross slider is slidably fitted onto the top plate. The second slider is stacked on top of the first slider, and the positions of the first slider and the second slider are perpendicular to each other.

5. The adjustable pole positioning device as described in claim 4, characterized in that, The first linear drive mechanism includes a first positioning plate and a second positioning plate. The first positioning plate is disposed on one side of the second slider, and the second positioning plate is disposed on one side of the base plate. A first linear driver is disposed on the second positioning plate. The telescopic rod of the first linear driver is connected to the first positioning plate and is used to drive the cross slider to move along the direction restricted by the clamp.

6. The adjustable pole positioning device as described in claim 4, characterized in that, The second linear drive mechanism includes a third positioning plate and a fourth positioning plate. The third positioning plate is located on one side of the top plate, and the fourth positioning plate is located on one side of the first slider. A second linear driver is provided on the fourth positioning plate. The telescopic rod of the second linear driver is connected to the third positioning plate and is used to drive the top plate to move in the direction limited by the second slider.

7. A method for constructing a cantilevered scaffold, using the adjustable upright positioning device as described in claim 1, characterized in that... Includes the following steps: Based on the structural design drawings of the scaffolding, extract the spatial coordinate data of key nodes and construct a basic topology model that reflects the ideal geometric shape of the scaffolding. During the erection and use of scaffolding, a network of strain sensors arranged at key sections of the uprights is used to simultaneously collect surface strain data at each measuring point. Based on surface strain data, the real-time displacement of each node of the scaffold is calculated by using the discrete integral algorithm, a real-time deformation model is constructed, and the spatial coordinates of the real-time deformation model are compared with the basic topology model to generate a shape deviation vector. Based on the shape deviation vector, the bottom compensation displacement required to eliminate the deviation is calculated, and the compensation displacement is converted into a control command for the cross slide to drive the cross slide to move until the shape deviation of the scaffolding returns to the preset normal range.

8. The construction method as described in claim 7, characterized in that, The data acquisition and processing method of the strain sensor network is as follows: on multiple height sections of the scaffold uprights, strain sensors are symmetrically arranged along the circumference to monitor the surface strain in the length and width directions of the uprights respectively. After Kalman filtering and noise reduction processing of the collected strain data, the curvature of the monitored section in the length direction is calculated.

9. The construction method as described in claim 8, characterized in that, The curvature is calculated as follows: In the formula, For curvature, , The height of the pole The tensile and compressive strain values ​​of the cross section on opposite sides in the width direction. This refers to the outer diameter of the scaffold uprights.

10. The construction method as described in claim 9, characterized in that, The calculation process for the morphological deviation vector includes: Based on curvature, the rotation angle and horizontal displacement of each node relative to the previous node are calculated using cumulative integrals. The calculated horizontal displacements of each node are superimposed onto the current coordinates of the cross slide to construct a real-time deformation model; The shape deviation vector is obtained by subtracting the coordinates of the top-level node of the real-time deformation model from the coordinates of the corresponding node of the basic model.

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