Adjustable building structure reinforcement device and method

Abstract

The application discloses a kind of building structure reinforcing device and method convenient to adjust, belong to building structure reinforcing technical field, mainly solve the problem that existing reinforcing device is difficult to real-time self-adaptive adjustment supporting force, cannot keep stable support under long-term load change.The device includes support base fixed to bearing base by foundation bolt, drive telescopic rod mounted on base, pressure top rod connected with telescopic rod push rod, pressure sensing module connected with top rod and support structure connected with the upper portion of sensing module;Controller collects pressure data at fixed period and controls drive telescopic rod to extend to preset pressure value, then enters pressure maintaining stage, realizes dormancy within tolerance threshold by continuously calculating pressure deviation, and compensates adjustment based on PID algorithm when exceeding threshold.The device can realize dynamic support and long-term stable reinforcement of building structure stress point, and is suitable for reinforcement and maintenance of bridge, factory building, floor and other building structures.

Description

Technical Field

[0001] This invention relates to the field of building structure reinforcement technology. More specifically, this invention relates to an easily adjustable building structure reinforcement device and method. Background Technology

[0002] During use, existing building structures may experience structural deformation or a decrease in load-bearing capacity due to load variations, material aging, foundation settlement, or external environmental influences. To ensure safety, reinforcement devices are typically used to provide temporary or permanent support to critical load-bearing components such as beams and slabs. Traditional reinforcement methods often employ mechanical structures such as jacks and steel pipe supports, relying on manual monitoring and adjustment. These methods suffer from low adjustment precision and slow response, and cannot meet the requirements for maintaining pressure over long periods.

[0003] Currently, some reinforcement devices use hydraulic or electric drives, which can apply pressure to a certain extent, but they generally lack stable adaptive control capabilities. These devices typically experience attenuation or fluctuations in actual support pressure after the initial pressure setting due to structural creep, temperature changes, or external load disturbances. This necessitates frequent manual intervention and correction, increasing maintenance costs and potentially leading to reduced reinforcement effectiveness or even safety hazards due to untimely adjustments.

[0004] Some improved solutions introduce pressure sensing modules and simple feedback mechanisms, which can activate the motor for compensation when pressure deviation is detected. However, these systems mostly employ feedback control based on instantaneous errors, lacking the ability to judge pressure change trends. This easily leads to frequent start-stop of the drive mechanism, affecting equipment lifespan and making it difficult to achieve smooth and stable pressure maintenance. Especially during long-term hardening, the system cannot predict the pressure decay pattern, and the control response exhibits significant hysteresis.

[0005] Therefore, it is necessary to develop a reinforcement device that can monitor in real time, predict intelligently, and adjust proactively, so as to reduce unnecessary actions and improve the reliability and durability of the system while ensuring support accuracy. Summary of the Invention

[0006] One object of the present invention is to solve at least the above-mentioned problems and to provide at least the advantages that will be described later.

[0007] To achieve these objectives and other advantages according to the present invention, an easily adjustable building structure reinforcement device is provided, comprising: A support base is provided on which a drive telescopic rod is provided. The telescopic end of the drive telescopic rod is connected to the lower end of a pressure rod. The upper end of the pressure rod is connected to a pressure sensing module. The upper end of the pressure sensing module is provided with a support structure. The controller is connected to the drive telescopic rod and the pressure sensing module. The controller has a preset pressure value, a pressure change tolerance threshold, a minimum sleep time threshold, and a pressure decay prediction model. The controller collects monitoring data from the pressure sensing module according to a first fixed cycle and controls the extension rod to extend so that the real-time pressure value reaches the preset pressure value. After reaching the preset pressure value, it enters the pressure holding and maintenance stage. During the pressure holding and maintenance stage, the controller continuously calculates the deviation between the real-time pressure value and the preset pressure value. When the absolute value of the deviation is continuously within the pressure change tolerance threshold range, the controller controls the extension rod to enter a sleep state and stops active adjustment. When the absolute value of the deviation continuously exceeds the pressure change tolerance threshold range and the duration exceeds the minimum sleep time threshold, the controller wakes up the extension rod and drives its push rod to perform compensatory extension and retraction movements according to the PID control algorithm to eliminate the deviation. After being awakened during the subsequent pressure maintenance phase, the controller performs the following compensation operations: recording the sequence data of pressure value changes over time at a second fixed period; inputting the newly acquired sequence data into the pressure decay prediction model for recursive fitting and updating the model parameters; calculating the predicted pressure value at future time points using the updated model; generating a feedforward compensation command when the deviation between the predicted pressure value and the preset pressure value exceeds the pressure change tolerance threshold; superimposing the feedforward compensation command with the PID control command calculated based on the real-time pressure deviation to generate a composite control command; and outputting the composite control command to drive the telescopic rod.

[0008] Preferably, the pressure decay prediction model is established through the following steps: A1. The controller controls the drive telescopic rod to apply force so that the pressure monitoring data reaches the initial preset pressure value; A2. The controller controls the push rod of the drive telescopic rod to stop moving and enters the pressure decay observation stage; A3. During the pressure decay observation phase, the monitoring data of the pressure sensing module is continuously collected and recorded at a first fixed sampling period for a predetermined learning time. A4. Perform nonlinear curve fitting on the recorded pressure-time series data to obtain the decay function and its model parameters that characterize the decay law of pressure over time. A5. Store the fitted decay function and its model parameters in the controller memory as the pressure decay prediction model for the current building structure under this pressure condition.

[0009] Preferably, the lower end of the pressure rod is connected to the top end of the push rod of the drive telescopic rod via a ball joint; the pressure sensing module is an axial force sensor, and a boss is provided at the center of the lower surface of the support structure, with a vertical through hole in the boss; The device also includes a pressure-bearing column, a pre-tightening rod, and an annular component. The lower end of the pressure-bearing column is connected to the upper end of the pressure rod via a universal joint. The pressure-bearing column has a central threaded hole along its axis. The annular component is coaxially rotatably connected to the through hole of the boss via a bearing. The inner wall of the annular component has an internal thread. The pre-tightening rod is a double-ended stud. The lower end of the pre-tightening rod is screwed into the central threaded hole of the pressure-bearing column, and the upper end passes upward through the through hole in the center of the axial force sensor and is screwed into the internal threaded hole of the annular component. By rotating the annular component, the preloaded tie rod is driven to produce axial displacement relative to the support structure, thereby compressing the axial force sensor and applying preload to the support structure, the axial force sensor and the pressure column, so that the three are fixed into a whole force transmission component.

[0010] Preferably, it also includes: A reflector plate is fixedly installed on the side of the pressure rod; A laser rangefinder is fixedly installed on the upper surface of the support base, with its laser emitting head facing the reflector; the laser rangefinder is electrically connected to the controller; The controller also has a pre-stored safe displacement threshold in its memory. The controller synchronously collects the monitoring data from the laser rangefinder. The controller compares the displacement monitoring data with the safe displacement threshold and executes a control loop only when the displacement monitoring data does not exceed the safe displacement threshold.

[0011] Preferably, the drive telescopic rod is a servo electric cylinder; the transmission mechanism of the servo electric cylinder is a ball screw pair; the servo electric cylinder has a built-in electromagnetic brake; the brake disc of the electromagnetic brake is connected to the motor shaft of the servo motor or the screw shaft of the ball screw; the electromagnetic brake is electrically connected to the controller; the controller performs the following operations: When controlling the servo electric cylinder to perform telescopic movement, the electromagnetic brake is de-energized and released; when controlling the servo electric cylinder to stop moving to maintain pressure, the electromagnetic brake is energized and engaged to lock the motor shaft or lead screw shaft.

[0012] Preferably, it also includes a height coarse adjustment mechanism, which includes an outer sleeve and an inner rod. The outer sleeve has an elongated sliding hole arranged in the vertical direction. The inner rod is coaxially slidably sleeved inside the outer sleeve. The inner rod is provided with a connecting bolt. The connecting bolt extends horizontally through the sliding hole, and a fastening nut is screwed onto the protruding end of the connecting bolt. The cylinder of the drive telescopic rod is coaxially provided with a first connecting flange at its rear end, and the top end of the inner rod is coaxially provided with a second connecting flange. The first connecting flange and the second connecting flange are connected by connecting bolts.

[0013] Preferably, it also includes a remote monitoring terminal; the controller is equipped with a wireless communication module; the remote monitoring terminal establishes a data connection with the controller through the wireless communication module, and is used to remotely set the preset pressure value, the pressure change tolerance threshold, and the safe displacement threshold, and to receive and display pressure and displacement monitoring data in real time.

[0014] The present invention also provides a method for strengthening a building structure, which utilizes the aforementioned easily adjustable building structure strengthening device for strengthening, specifically including the following steps: S1. Device placement: Fix the support base of the reinforcement device to the bearing foundation with anchor bolts, and make the upper end of the support structure contact the stress point of the building structure to be reinforced. S2. Parameter setting: Set the preset pressure value, pressure change tolerance threshold, and minimum sleep time threshold through the controller; S3. Initial pressurization: The controller controls the extension of the push rod of the telescopic rod, and applies pressure to the building structure through the pressure push rod and the pressure sensing module until the pressure monitoring data reaches the preset pressure value; S4, Pressure Holding: Entering the pressure holding phase, the controller continuously calculates the deviation between the real-time pressure value and the preset pressure value, and executes the following control cycle: S41: If the absolute value of the deviation remains within the pressure change tolerance threshold range, the control drive telescopic rod will enter a dormant state and stop adjusting. S42: If the absolute value of the deviation continues to exceed the pressure change tolerance threshold range and the duration exceeds the minimum sleep time threshold, the drive telescopic rod is awakened, and a control command is generated according to the PID control algorithm to drive the push rod to perform compensatory telescopic movement to eliminate the deviation. S5: Cyclic monitoring, repeating step S4 until the reinforcement work is completed.

[0015] The present invention has at least the following beneficial effects: First, through real-time monitoring by the pressure sensing module and closed-loop control by the controller, the supporting force can be accurately stabilized at the preset pressure value, completely avoiding the problem of insufficient pressure or overload caused by traditional manual adjustment, and preventing local damage to the building structure. Secondly, by setting a control strategy with a "pressure change tolerance threshold" and a "minimum sleep time threshold," the system can intelligently distinguish between normal fluctuations and significant deviations. The drive mechanism is only activated for compensatory adjustments when necessary, thereby significantly reducing unnecessary actions and energy consumption, lowering equipment wear, and extending the device's lifespan.

[0016] Third, this reinforcement device can actively adapt to changes in stress caused by factors such as load and temperature changes in the building structure, and provide real-time feedback and compensation, providing a dynamic and continuous stable support for the building structure, thereby improving the reliability and safety of the reinforcement.

[0017] Fourth, the entire adjustment process of this reinforcement device is highly automated, which reduces the reliance on the experience and skills of operators, reduces the frequency and cost of later maintenance, and improves work efficiency.

[0018] Fifth, by establishing and updating the pressure decay prediction model, the pressure change trend can be predicted in advance, realizing the combination of feedforward compensation and feedback control, improving the system's response speed and control accuracy, reducing the number of adjustments and equipment wear caused by pressure decay, and enhancing the stability of the device under long-term load.

[0019] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the adjustable building structure reinforcement device according to one of the technical solutions of the present invention; Figure 2 This is a flowchart illustrating the steps of a building structure reinforcement method according to one of the technical solutions of the present invention; Figure 3 A flowchart illustrating the establishment of a pressure attenuation prediction model according to one of the technical solutions of this invention; Figure 4 The flowchart shows the compensation operation of the controller after the easily adjustable building structure reinforcement device of the present invention is activated during the pressure holding and maintenance phase. Figure 5 This is a flowchart of the safe displacement monitoring and protection process of the present invention.

[0021] Reference numerals: 1-Support base; 2-Anchor bolt; 3-Sliding hole; 4-Fasting nut; 5-Outer sleeve; 6-Inner rod; 7-Second connecting flange; 8-Connecting bolt; 9-Drive telescopic rod; 10-Spherical hinge; 11-Pressure rod; 12-Pressure bearing column; 13-Universal joint; 14-Pressure sensing module; 15-Ring component; 16-Support structure; 17-Reflector; 18-Laser rangefinder; 19-First connecting flange. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0023] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0024] like Figures 1-5 As shown, the present invention provides an easily adjustable building structure reinforcement device, comprising: Support base 1, which is fixed to the bearing foundation by anchor bolts 2; The drive telescopic rod 9 has its cylinder body fixedly installed on the upper surface of the support base 1; The pressure rod 11 has its lower end connected to the top of the push rod of the drive telescopic rod 9; The lower end of the pressure sensing module 14 is connected to the upper end of the pressure push rod 11; The lower end of the support structure 16 is connected to the upper end of the pressure sensing module 14, and the upper end of the support structure 16 is in contact with the stress point of the building structure to be reinforced. The controller is electrically connected to the drive telescopic rod 9 and the pressure sensing module 14. The controller's memory stores a preset pressure value, a pressure change tolerance threshold, and a minimum sleep time threshold. The controller executes the following control method: The monitoring data of the pressure sensing module 14 is collected according to the first fixed cycle, and the extension rod 9 is first controlled to extend so that the real-time pressure value reaches the preset pressure value. After the preset pressure value is reached, the pressure holding stage is entered. During the pressure holding phase, the controller continuously calculates the deviation between the real-time pressure value and the preset pressure value. When the absolute value of the deviation remains within the pressure change tolerance threshold range, the controller controls the drive telescopic rod 9 to enter a sleep state and stop active adjustment. When the absolute value of the deviation exceeds the pressure change tolerance threshold range and the duration exceeds the minimum sleep time threshold, the controller wakes up the drive telescopic rod 9 and drives its push rod to perform compensatory telescopic movement according to the PID control algorithm to eliminate the deviation. The controller also has a pressure attenuation prediction model pre-stored in its memory; the pressure attenuation prediction model is established through the following steps: A1. The controller controls the drive telescopic rod 9 to apply force so that the pressure monitoring data reaches the initial preset pressure value; A2. The controller controls the push rod of the drive telescopic rod 9 to stop moving and enters the pressure decay observation stage; A3. During the pressure decay observation phase, the monitoring data of the pressure sensing module 14 is continuously collected and recorded at a first fixed sampling period for a predetermined learning time. A4. Perform nonlinear curve fitting on the recorded pressure-time series data to obtain the decay function and its model parameters that characterize the decay law of pressure over time. A5. Store the fitted decay function and its model parameters in the controller memory as the pressure decay prediction model of the current building structure under this pressure condition. After being awakened during the subsequent pressure maintenance phase, the controller performs the following compensation operations: recording the sequence data of pressure value changes over time at a second fixed period; inputting the newly acquired sequence data into the pressure decay prediction model for recursive fitting and updating the model parameters; calculating the predicted pressure value at future time points using the updated model; generating a feedforward compensation command when the deviation between the predicted pressure value and the preset pressure value exceeds the pressure change tolerance threshold; superimposing the feedforward compensation command with the PID control command calculated based on the real-time pressure deviation to generate a composite control command; and outputting the composite control command to the drive telescopic rod 9.

[0025] In the above technical solution, the reinforcement device includes a support base 1, which is fixed to the bearing foundation by anchor bolts 2. The anchor bolts 2 can be high-strength bolts of M20 to M30 specifications, and the material can be Q235B or 45 steel. The bearing foundation is usually a concrete structure. The anchor bolts 2 are pre-embedded or installed by post-anchoring. The cylinder of the drive telescopic rod 9 is fixedly installed on the upper surface of the support base 1. The drive telescopic rod 9 can be a servo electric cylinder, and the bottom of the cylinder of the drive telescopic rod 9 can be connected to the support base 1 by bolts. The lower end of the pressure rod 11 is connected to the top end of the push rod of the drive telescopic rod 9. The pressure rod 11 can be made of solid round steel, and the connection method can be threaded connection or flange connection.

[0026] The lower end of the pressure sensing module 14 is connected to the upper end of the pressure push rod 11. The pressure sensing module 14 can be a resistance strain gauge axial force sensor. The lower end of the support structure 16 is connected to the upper end of the pressure sensing module 14, and the upper end of the support structure 16 contacts the stress point of the building structure to be reinforced. The support structure 16 can be a welded steel plate structure, and a rubber pad can be provided on the upper surface to increase friction and protect the structural surface. The controller is electrically connected to the drive telescopic rod 9 and the pressure sensing module 14. The controller can be an industrial PLC or an embedded controller, with a built-in AD module for acquiring sensor signals and outputting pulse signals to control the movement of the electric cylinder.

[0027] The controller's memory stores a preset pressure value, a pressure variation tolerance threshold, and a minimum sleep time threshold. The preset pressure value can be set according to actual engineering needs, such as a value between 100kN and 300kN, or it can be a calculated value. The pressure variation tolerance threshold can be set to ±2% to ±5% of the preset pressure value, for example, ±5kN. The minimum sleep time threshold can be set to 30 seconds to 300 seconds, for example, 120 seconds, adaptably set according to actual conditions. The controller collects monitoring data from the pressure sensing module 14 according to a first fixed cycle, which is a first fixed sampling cycle. The sampling cycle can be set to 1 second. First, it controls the extension rod 9 to extend so that the real-time pressure value reaches the preset pressure value. After reaching the preset pressure value, it enters the pressure holding and maintenance phase.

[0028] During the pressure maintenance phase, the controller continuously calculates the deviation between the real-time pressure value and the preset pressure value. When the absolute value of the deviation remains within the pressure change tolerance threshold range, the controller controls the drive telescopic rod 9 to enter a sleep state and stop active adjustment. When the absolute value of the deviation continuously exceeds the pressure change tolerance threshold range, and the duration exceeds the minimum sleep time threshold, the controller wakes up the drive telescopic rod 9 and drives its push rod to perform compensatory telescopic movement according to the PID control algorithm to eliminate the deviation. The PID parameters can be tuned according to the actual system response; the proportional coefficient Kp can be set from 0.5 to 2.0, the integral time Ti can be set from 10 seconds to 30 seconds, and the derivative time Td can be set from 1 second to 5 seconds. The controller also has a pressure decay prediction model pre-stored in its memory. This pressure decay prediction model is established through steps A1 to A5: In step A1, the controller controls the drive telescopic rod 9 to apply force, causing the pressure monitoring data to reach an initial preset pressure value, which can be set to 180kN. This value is usually slightly higher than the preset pressure value for subsequent working stages to observe a more obvious attenuation trend. In step A2, the controller controls the push rod of the drive telescopic rod 9 to stop moving, and the system enters the pressure attenuation observation stage. In step A3, the system continuously collects and records the monitoring data of the pressure sensing module 14 at a set period of time, such as 10 seconds, as the first fixed sampling period, for a predetermined learning time. This time can be set to 24 hours according to the structural characteristics to ensure that a complete pressure attenuation curve is obtained.

[0029] In step A4, a nonlinear curve is fitted to the recorded pressure-time series data. An exponential decay function P(t) = P0 × e^(-λt) + C can be used for fitting, where P0 is the initial pressure value in kilonewtons (kN) and λ is the decay coefficient in seconds. -1C represents the steady-state pressure in kilonewtons (kN), t represents time in seconds (s), and P(t) represents the pressure at time t in kilonewtons (kN). The least squares method is used for parameter identification to obtain the best-fit parameters. In step A5, the fitted decay function and its model parameters are stored in the controller's memory, forming a pressure decay prediction model for the current building structure under this pressure condition. The model parameters include the decay coefficient λ (typically ranging from 0.001 to 0.01 s). -1 ) and stable pressure value C.

[0030] During the subsequent pressure maintenance phase, when the controller performs compensation, it can record the sequence data of pressure value changes over time at a second fixed period of 5 seconds, which is also the second fixed sampling period. The newly acquired data is input into the pressure decay prediction model for recursive fitting, and the model parameters are updated in real time using a recursive least squares algorithm. The updated model is used to predict the pressure value in the next 30 seconds. When the deviation between the predicted value and the preset pressure value exceeds the pressure change tolerance threshold (e.g., ±4.5 kN), the system generates a feedforward compensation command. This feedforward compensation command is superimposed with the PID control command calculated based on the real-time pressure deviation to form a composite control command output to drive the telescopic rod 9. The formula for calculating the feedforward compensation amount ΔF is: ΔF = K × (P 预测 -P 预设 ), where K is the feedforward coefficient, ranging from 0.8 to 1.2, and P 预设 To set the pressure value, the unit is kilonewtons (kN), P 预测 The system uses a mathematical model to predict in real time the value that the pressure may change to in the future, expressed in kilonewtons (kN). In this technical solution, the reinforcement device can be used according to the following procedure: First, install and initially set up the device. Fix the support base 1 to the load-bearing foundation under the building to be reinforced using anchor bolts 2, ensuring that the base is installed horizontally. Adjust the position of the support structure 16 so that its top is in full contact with the stress point of the building structure to be reinforced. Connect the power and signal lines of the controller to ensure that the drive telescopic rod 9 and the pressure sensing module 14 establish a normal electrical connection with the controller.

[0031] Next, we proceed with the parameter setting phase. The preset pressure value is set via the controller's human-machine interface. This value can be set within the range of 100-300kN, for example, 150kN, depending on project requirements. The pressure variation tolerance threshold is set, typically ±2-5% of the preset value, for example, ±4.5kN. The minimum sleep time threshold is set to 60-120 seconds, for example, 90 seconds. Simultaneously, the PID control parameters are set: proportional gain Kp = 0.5-2.0, integral time Ti = 10-30 seconds, and derivative time Td = 1-5 seconds.

[0032] Then, the automatic operation phase begins. The controller controls the extension rod 9 to extend, pushing the pressure rod 11 upwards, applying pressure to the building structure through the pressure sensing module 14 and the support structure 16. The system continuously monitors the pressure value at a 1-second interval, and automatically enters the pressure holding phase when the preset pressure value is reached. During this phase, the system continuously monitors pressure changes, and when the pressure deviation exceeds the tolerance range and the duration exceeds the sleep threshold, the PID control algorithm is automatically activated for precise compensation and adjustment.

[0033] The beneficial effects of adopting this technical solution are that this reinforcement device can achieve dynamic support and long-term stable reinforcement of the stress points of building structures, and is suitable for the reinforcement and maintenance of building structures such as bridges, factories, and floor slabs. Through automatic monitoring and adjustment, manual intervention is reduced, improving the stability and reliability of the support force; at the same time, it avoids the poor accuracy or potential localized damage to the building structure caused by traditional manual jacking. Furthermore, by establishing and updating the pressure attenuation prediction model, pressure change trends can be predicted in advance, achieving a combination of feedforward compensation and feedback control, improving the system's response speed and control accuracy, reducing the number of adjustments and equipment wear caused by pressure attenuation, and enhancing the stability of the device under long-term loads.

[0034] In another technical solution, the lower end of the pressure rod 11 is connected to the top end of the push rod of the drive telescopic rod 9 through a ball joint 10; the pressure sensing module 14 is an axial force sensor, and a boss (not shown in the figure) is provided at the center of the lower surface of the support structure 16, and a vertical through hole is opened in the boss. The device also includes a pressure-bearing column 12, a pre-tightening rod, and an annular component 15. The lower end of the pressure-bearing column 12 is connected to the upper end of the pressure rod 11 via a universal joint 13. The pressure-bearing column 12 has a central threaded hole along its axis. The annular component 15 is coaxially rotatably connected to the through hole of the boss via a bearing. The inner wall of the annular component 15 has an internal thread. The pre-tightening rod is a double-ended stud. The lower end of the pre-tightening rod is screwed into the central threaded hole of the pressure-bearing column 12, and the upper end passes upward through the through hole in the center of the axial force sensor and is screwed into the internal threaded hole of the annular component 15. By rotating the annular component 15, the preload rod is driven to generate axial displacement relative to the support structure 16, thereby compressing the axial force sensor and applying preload force to the support structure 16, the axial force sensor and the pressure-bearing column 12, so that the three are fixed into an integral force transmission component.

[0035] In the above technical solution, the lower end of the pressure rod 11 is connected to the top of the push rod of the drive telescopic rod 9 via a ball joint 10. The ball joint 10 can be a self-lubricating spherical bearing with a rated load of 300kN, and its inner diameter can be set to 30mm, the outer diameter to 62mm, and the allowable deflection angle to be ±15°. This connection method can compensate for the misalignment caused by installation errors and structural deformation. The pressure sensing module 14 adopts an axial force sensor, which can be a strain gauge sensor with a range of 0-500kN and an accuracy class of 0.5. Its surface has an anti-corrosion coating, and during installation, it is necessary to ensure that the force axis coincides with the center line of the sensor. The lower surface of the support structure 16 has a boss at its center. The boss can be machined into a cylindrical structure with a diameter of 120mm and a height of 40mm. The material can be Q345B steel. A vertical through hole with a diameter of 45mm is opened in the boss. The inner surface of the through hole needs to be precision machined to ensure the fitting accuracy.

[0036] This reinforcement device also includes a pressure-bearing column 12, a preload tie rod, and an annular component 15. The lower end of the pressure-bearing column 12 is connected to the upper end of the pressure push rod 11 via a universal joint 13. The universal joint 13 can be an SWC type lightweight universal coupling with a nominal torque of 315 N·m and a permissible deflection angle of ±25°. The pressure-bearing column 12 has a central threaded hole along its axis, machined with a fine thread of M36×2, a depth of 80 mm, and a thread accuracy of 6g. The annular component 15 is coaxially rotatably connected to the through hole of the boss via a bearing. The bearing can be a deep groove ball bearing, capable of withstanding radial loads and a certain axial load. The inner wall of the annular component 15 is machined with internal threads.

[0037] The preload tie rod is a double-ended stud with a diameter of 36mm and threads machined at both ends, with a thread length of not less than 60mm. During installation, the lower end of the preload tie rod is screwed into the central threaded hole of the bearing column 12 to a depth of not less than 50mm, and a preload torque of 200 N·m is applied using a torque wrench. The upper end of the preload tie rod passes upward through the through hole in the center of the axial force sensor and is screwed into the internal threaded hole of the annular component 15. The diameter of the through hole can be set to 38mm, maintaining a 1mm single-sided gap with the tie rod. Rotating the annular component 15 with a special tool causes the preload tie rod to undergo axial displacement relative to the support structure 16. The rotation torque is controlled within the range of 300-500 N·m using a torque wrench, allowing a preload force of 50-100kN to be applied, thus solidifying the support structure 16, the axial force sensor, and the bearing column 12 into a single force-transmitting component.

[0038] The beneficial effects of this technical solution are that the combination of the ball joint 10 and the universal joint 13 effectively solves the installation alignment problem. The ball joint 10 connects the push rod of the drive telescopic rod 9 and the pressure rod 11, while the universal joint 13 is located between the pressure rod 11 and the bearing column 12. This double universal connection structure can compensate for installation deviations in various directions and allows for a certain degree of angular deflection. This design eliminates the need for precise alignment adjustments of each component during on-site installation, reducing installation difficulty and improving construction efficiency. Simultaneously, this flexible connection method avoids additional bending moments caused by installation errors, ensuring that the drive telescopic rod 9 and the force transmission components are always in the optimal axial stress state. The unique design of the pre-tensioning rod and the ring component 15 achieves integrated consolidation of the force transmission components. Rotating the ring component 15 causes the pre-tensioning rod to move axially, thereby applying a pre-tensioning force to the pressure sensing module 14, thus consolidating the support structure 16, the pressure sensing module 14, and the pressure-bearing column 12 into a single unit. This design not only eliminates assembly gaps between components, avoiding impact loads caused by gaps, but also significantly improves the rigidity of the entire force transmission system. The presence of the pre-tensioning force ensures that pressure is transmitted through a preset path under any operating condition, improving the accuracy and reliability of pressure monitoring data. Overall, the design of the reinforcement device in this technical solution enhances the long-term operational stability of the system. Under long-term vibration and load variations, the pre-tensioned tie rod mechanism effectively prevents loosening of the connections. The universal joint structure can adapt to deformations caused by temperature changes, foundation settlement, and other factors, maintaining the continuity of the force transmission path. The modular design makes the disassembly and maintenance of each component more convenient; when a component needs to be replaced, it can be replaced simply by loosening the pre-tensioned tie rod, greatly reducing maintenance costs and workload. It provides long-term reliable reinforcement support for the building structure while reducing the difficulty of installation and maintenance, demonstrating significant engineering application value.

[0039] Another technical solution also includes: A reflector plate 17 is fixedly mounted on the side of the pressure rod 11; A laser rangefinder 18 is fixedly installed on the upper surface of the support base 1, with its laser emitting head facing the reflector 17; the laser rangefinder 18 is electrically connected to the controller; The controller also has a pre-stored safe displacement threshold in its memory. The controller synchronously collects the monitoring data of the laser rangefinder 18. The controller compares the displacement monitoring data with the safe displacement threshold and executes the control loop only when the displacement monitoring data does not exceed the safe displacement threshold.

[0040] In the above technical solution, the reflector 17 can be a 100mm×100mm square aluminum alloy plate with a thickness of 3mm, and the surface is frosted to form a good laser reflective surface. The reflector 17 is fixedly installed on the side of the pressure rod 11 by two M6 screws. The installation position must ensure that its center point is at the same horizontal height as the laser emitting head of the laser rangefinder 18. The laser rangefinder 18 can be a phase-type laser rangefinder sensor with a measurement range of 0-500mm and an accuracy of ±0.1%FS. The position of the laser rangefinder 18 on the support base 1 is adjustable to ensure that its laser emitting head is directly facing the center of the reflector 17 and that the laser beam is parallel to the movement axis of the pressure rod 11.

[0041] The controller has a pre-stored safety displacement threshold in its memory. This threshold can be set according to the actual engineering situation, typically between 3-10 mm, for example, 5 mm. The setting of the displacement threshold needs to consider the allowable deformation of the building structure and the expected value of foundation settlement, and is generally determined through structural calculation and analysis. The controller synchronously acquires displacement monitoring data from the laser rangefinder 18 and pressure monitoring data from the pressure sensing module 14 at a 1-second cycle. The displacement monitoring data reflects the relative displacement of the pressure rod 11 relative to the support base 1, i.e., the actual elongation of the drive telescopic rod 9.

[0042] In the control loop, the controller first compares the displacement monitoring data with the safe displacement threshold. Only when the displacement monitoring data does not exceed the safe displacement threshold (i.e., ≤5mm) will the controller continue to execute the normal pressure control loop, including pressure data acquisition, deviation calculation, and adjustment of the drive telescopic rod 9 according to the PID algorithm. If the detected displacement data exceeds the safe displacement threshold, the controller will immediately pause the pressure control loop and activate the safety protection program: controlling the drive telescopic rod 9 to stop moving and maintain its current position, while triggering an audible and visual alarm and sending alarm information to the remote monitoring terminal via the wireless communication module. Operators must check and confirm the safety of the device and structure on-site before manually deactivating the alarm and restarting the system.

[0043] The beneficial effects of adopting this technical solution are twofold: firstly, it can monitor excessive displacement caused by foundation settlement or other abnormalities, preventing the device from failing due to excessive elongation; secondly, it can also serve as a redundant check for the pressure monitoring system, promptly detecting sensor malfunctions or system anomalies when there is an unreasonable mismatch between pressure and displacement data (such as no change in pressure but a continuous increase in displacement). This design significantly improves the safety and reliability of the reinforcement device, ensuring safe operation under various working conditions.

[0044] In another technical solution, the drive telescopic rod 9 is a servo electric cylinder; the transmission mechanism of the servo electric cylinder is a ball screw pair; the servo electric cylinder has a built-in electromagnetic brake; the brake disc of the electromagnetic brake is connected to the motor shaft of the servo motor or the screw shaft of the ball screw; the electromagnetic brake is electrically connected to the controller; the controller performs the following operations: When controlling the servo electric cylinder to perform telescopic movement, the electromagnetic brake is de-energized and released; when controlling the servo electric cylinder to stop moving to maintain pressure, the electromagnetic brake is energized and engaged to lock the motor shaft or lead screw shaft.

[0045] In the above technical solution, the drive telescopic rod 9 uses a servo electric cylinder as the power actuator. The servo electric cylinder can be a model with a rated thrust of 200kN and a stroke of 300mm, achieving a repeatability of ±0.01mm. The transmission mechanism of the electric cylinder uses a ball screw pair, with a screw diameter of 40mm and a lead of 10mm. This transmission method offers high transmission efficiency and positioning accuracy. The servo electric cylinder has a built-in servo motor, which can be an AC servo motor with a rated torque of 20N·m and a rated speed of 3000rpm. The motor has a built-in absolute encoder for real-time feedback of the push rod position.

[0046] The servo electric cylinder has a built-in electromagnetic brake. The brake can be a normally closed, single-plate electromagnetic brake powered by 24V DC, with a rated braking torque of not less than 30 N·m. The brake disc of the electromagnetic brake is directly connected to the motor shaft of the servo motor via a key connection, ensuring effective transmission of braking torque. The electromagnetic brake is electrically connected to the controller via a relay module. The controller controls the on / off state of the relay through digital output points, thereby controlling the power supply to the electromagnetic brake.

[0047] The controller employs the following strategy when performing braking control: When controlling the servo electric cylinder to extend or retract, the controller first outputs a signal to energize the relay, de-energizing and releasing the electromagnetic brake, thus releasing the braking constraint on the motor shaft. Subsequently, the controller controls the servo driver to rotate the motor via a pulse sequence, which in turn drives the ball screw to convert the rotational motion into the linear motion of the push rod. When the pressure value reaches a preset value and needs to be maintained, the controller stops outputting pulse signals, and the servo motor stops rotating. After a 100ms delay, the controller de-energizes the relay, energizing and engaging the electromagnetic brake, generating braking torque to firmly lock the motor shaft, preventing position drift caused by external loads or vibrations.

[0048] The advantages of this technical solution are that the braking control method has high reliability. The electromagnetic brake is in a braking state when the power is off, i.e., a "fail-safe" mode, which can immediately brake even if the power is suddenly cut off, preventing the device from going out of control. At the same time, the use of the brake greatly reduces the energy consumption of the servo motor during the pressure holding stage. Only the power supply to the brake coil needs to be maintained to maintain the braking force, which is more energy-efficient than the servo motor continuously being powered to resist external forces.

[0049] In another technical solution, a height coarse adjustment mechanism is also included. The height coarse adjustment mechanism includes an outer sleeve 5 and an inner rod 6. The outer sleeve 5 has an elongated sliding hole 3 arranged in the vertical direction. The inner rod 6 is coaxially slidably sleeved inside the outer sleeve 5. A connecting bolt 8 is provided on the inner rod 6. The connecting bolt 8 extends horizontally through the sliding hole 3. A fastening nut 4 is screwed onto the protruding end of the connecting bolt 8. The cylinder rear end of the drive telescopic rod 9 is coaxially provided with a first connecting flange 19, and the top end of the inner rod 6 is coaxially provided with a second connecting flange 7. The first connecting flange 19 and the second connecting flange 7 are connected by connecting bolts 8.

[0050] In the above technical solution, the outer sleeve 5 can be made of Q235B seamless steel pipe with a wall thickness of 10mm and an outer diameter of 219mm. The height is designed according to the actual situation. Two elongated sliding holes 3 are provided on the wall of the outer sleeve 5 along the vertical direction. The two sliding holes 3 are symmetrically distributed at 180 degrees on the circumference of the outer sleeve 5 to ensure the stability of the inner rod 6 during adjustment.

[0051] The inner rod 6 is also made of Q235B material with an outer diameter of 200mm. It maintains a 0.5mm single-sided gap with the inner wall of the outer sleeve 5 to ensure smooth sliding without significant wobble. Connecting bolts 8 are welded onto the inner rod 6. Two M20 high-strength bolts can be used for the connecting bolts 8, with their threaded portions horizontally protruding from the sliding hole 3 of the outer sleeve 5. A fastening nut 4 is screwed onto the protruding end of the connecting bolt 8. The fastening nut 4 can be equipped with a 5mm thick enlarged flat washer to increase the contact area with the outer wall of the outer sleeve 5 during locking. By first loosening the fastening nut 4, the extension height of the inner rod 6 within the outer sleeve 5 can be manually adjusted. After adjustment, tightening the fastening nuts 4 on both sides will securely lock the inner rod 6 to the outer sleeve 5.

[0052] The rear end of the cylinder of the drive telescopic rod 9 is coaxially equipped with a first connecting flange 19. The first connecting flange 19 can be made of Q345B steel plate with an outer diameter of 300mm and a thickness of 25mm, and is connected to the rear flange of the cylinder of the drive telescopic rod 9 by six M16 high-strength bolts. The top end of the inner rod 6 is coaxially equipped with a second connecting flange 7, the specifications of which match the first connecting flange 19. The first connecting flange 19 and the second connecting flange 7 are mated by six M16 connecting bolts 8. The flange mating surfaces can be coated with anti-slip paint to increase the friction of the connecting surfaces.

[0053] The beneficial effect of adopting this technical solution is that the height coarse adjustment mechanism effectively expands the applicability of the device. The coarse adjustment mechanism enables rapid height pre-positioning within a 300mm range, greatly reducing the stroke load on the drive telescopic rod 9, allowing it to focus on precise pressure adjustment within a ±50mm range. This two-stage adjustment mechanism (mechanical coarse adjustment + electronic fine adjustment) ensures both adjustment efficiency and final control accuracy, making it particularly suitable for applications with inconsistent foundation elevations or requiring significant adjustments to the support height.

[0054] In another technical solution, a remote monitoring terminal is also included; the controller is equipped with a wireless communication module; the remote monitoring terminal establishes a data connection with the controller through the wireless communication module, and is used to remotely set the preset pressure value, the pressure change tolerance threshold, and the safe displacement threshold, and to receive and display pressure and displacement monitoring data in real time; In the above technical solution, the controller is equipped with a wireless communication module. This module can be an industrial-grade wireless DTU supporting 4GCat.1 or NB-IoT communication protocols, with a built-in SIM card slot supporting IoT cards from the three major telecom operators. The wireless communication module connects to the controller's main CPU module via an RS-485 interface, with a communication baud rate set to 9600bps, and uses the Modbus RTU protocol for data exchange. The wireless communication module is equipped with an external antenna interface, which can connect to a magnetic antenna with a gain of 3dBi to enhance signal reception.

[0055] The remote monitoring terminal can be an industrial computer with dedicated monitoring software installed, or a web-based cloud platform system. The monitoring terminal establishes a secure data connection with the wireless communication module via an APN leased line or VPN tunnel. Data transmission is encrypted using the TLS 1.2 protocol to ensure communication security. Remote operators can remotely set key parameters through the monitoring terminal's human-machine interface, including preset pressure values ​​(setting range 50-500kN), pressure change tolerance threshold (set to ±1% to ±10% of the preset value), and safe displacement threshold (setting range 2-20mm). All these parameters undergo range verification and logical rationality checks before being sent to the controller to prevent misoperation.

[0056] After the system connection is established, the controller sends real-time data packets to the remote monitoring terminal once per minute. These packets contain current pressure values, displacement values, equipment status codes, and alarm information. The remote monitoring terminal receives the data, stores it in its database, and displays it in real-time as trend curves, digital dashboards, etc. When the monitored data exceeds a set threshold or a device malfunctions, the controller immediately and proactively uploads alarm information. Simultaneously, the remote monitoring terminal triggers an audible alarm, pops up an alarm dialog box, and can send SMS or WeChat alerts to designated personnel according to preset policies.

[0057] The system also features historical data query and analysis capabilities, allowing playback of pressure-displacement change curves over any time period and supporting data export to CSV or Excel formats. Remote maintenance personnel can perform operations such as soft reset and batch parameter updates on the controller via the monitoring terminal, significantly improving equipment maintenance efficiency. This remote monitoring system enables 24 / 7 unattended operation of the ruggedized equipment, allowing technicians to monitor the equipment's operating status at any time, promptly detect and handle abnormalities, and significantly improve management efficiency and operational safety.

[0058] The present invention also provides a method for strengthening a building structure, which utilizes the aforementioned easily adjustable building structure strengthening device for strengthening, specifically including the following steps: S1. Device positioning: Fix the support base 1 of the reinforcement device to the bearing foundation with anchor bolts 2, and make the upper end of the support structure 16 contact the stress point of the building structure to be reinforced. S2. Parameter setting: Set the preset pressure value, pressure change tolerance threshold, and minimum sleep time threshold through the controller; S3, Initial pressurization: The controller controls the extension of the push rod of the telescopic rod 9, and applies pressure to the building structure through the pressure push rod 11 and the pressure sensing module 14 until the pressure monitoring data reaches the preset pressure value; S4, Pressure Holding: Entering the pressure holding phase, the controller continuously calculates the deviation between the real-time pressure value and the preset pressure value, and executes the following control cycle: S41: If the absolute value of the deviation remains within the pressure change tolerance threshold range, the control drive telescopic rod 9 will enter a dormant state and stop adjusting. S42: If the absolute value of the deviation continues to exceed the pressure change tolerance threshold range and the duration exceeds the minimum sleep time threshold, then the drive telescopic rod 9 is awakened, and a control command is generated according to the PID control algorithm to drive the push rod to perform compensatory telescopic movement to eliminate the deviation. S5: Cyclic monitoring, repeating step S4 until the reinforcement work is completed.

[0059] The specific operational process for reinforcing building structures using the aforementioned device in the above technical solution is as follows.

[0060] First, conduct a site survey and preparation. Perform a detailed inspection of the building structure to be reinforced, determine the location of the stress points requiring reinforcement, and assess the current structural condition and load. Clean the foundation surface of the reinforcement area, ensuring it is flat and free of debris. Determine the installation position of the support base 1 according to the design drawings, and mark the location on the concrete foundation surface. Drill holes at the predetermined positions using an electric drill. The hole diameter should be 4-6mm larger than the diameter of the anchor bolt 2, and the hole depth should be no less than 10 times the diameter of the anchor bolt 2. After cleaning the holes, inject epoxy resin anchoring agent, then insert the anchor bolt 2 into the holes, adjust its verticality, and fix it. Wait until the anchoring agent reaches the design strength before proceeding to the next step.

[0061] Next, the device is installed and roughly adjusted. The support base 1 is fitted onto the anchor bolts 2, and washers and nuts are added for initial fixation. A level is used to adjust the base's levelness, controlling the error within 1°, and then the nuts are tightened to the rated torque. The height coarse adjustment mechanism is installed. First, the outer sleeve 5 is welded to the support base 1 or bolted together. Then, the inner rod 6 is inserted, and the height is initially adjusted through the sliding hole 3, ensuring the distance between the upper end of the support structure 16 and the stress point of the structure to be reinforced is within 50mm. Finally, the fastening nuts 4 on the connecting bolts 8 are tightened. The drive telescopic rod 9 is installed, and its cylinder rear end first connecting flange 19 is bolted to the inner rod 6 top end second connecting flange 7, ensuring a secure connection.

[0062] Then perform electrical connections and system debugging. Connect the signal lines of the pressure sensing module 14 and the laser rangefinder 18 to the input port of the controller, and connect the control line of the drive telescopic rod 9 to the output port. Turn on the power and perform a system self-test to confirm that the readings of each sensor are normal and the actuators are functioning correctly. Set the operating parameters through the controller's human-machine interface: preset pressure value, pressure change tolerance threshold, minimum sleep time threshold, and safe displacement threshold should all be set according to actual needs. Set the PID control parameters, for example, proportional coefficient Kp=1.2, integral time Ti=20 seconds, and derivative time Td=2 seconds. After completing the settings, save the parameters and start the trial run program.

[0063] During normal operation, the system executes an automatic control cycle. The controller controls the push rod of the telescopic rod 9 to slowly extend, pushing the pressure rod 11 upward, applying pressure to the building structure through the pressure sensing module 14 and the support structure 16. The pressure value is displayed in real time with a 1-second cycle. When the preset pressure value is reached, the system automatically enters the pressure maintenance phase. During this phase, the system continuously monitors pressure changes. When the pressure deviation exceeds the tolerance range and the duration exceeds the sleep threshold, the PID adjustment algorithm is automatically activated for precise compensation. At the same time, the system monitors displacement data to ensure that it does not exceed the safety threshold. The entire process requires no manual intervention; the system automatically maintains the optimal support state.

[0064] After the reinforcement work is completed, an orderly depressurization and dismantling procedure is executed. The telescopic rod 9 is gradually retracted via the controller, slowly depressurizing at a rate of 10 kN per minute to avoid impact on the structure. When the pressure drops below 10 kN, depressurization is stopped, and the final pressure and displacement values ​​are recorded. The fastening nut 4 of the height coarse adjustment mechanism is loosened, lowering the device height so that the support structure 16 is no longer in contact with the structure. Electrical connections are disconnected, anchor bolts 2 are loosened, and the entire device is lifted off the site. The condition of each component is checked, necessary maintenance is performed, and the device is stored for future use. The entire process achieves safe, controllable, and efficient building structure reinforcement work.

[0065] The number of devices and processing capacity described herein are for simplification. Applications, modifications, and variations of the easily adjustable building structure reinforcement device of this invention will be readily apparent to those skilled in the art.

[0066] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A building structure reinforcement device that is easy to adjust, characterized in that, include: A support base is provided on which a drive telescopic rod is provided. The telescopic end of the drive telescopic rod is connected to the lower end of a pressure rod. The upper end of the pressure rod is connected to a pressure sensing module. The upper end of the pressure sensing module is provided with a support structure. The controller is connected to the drive telescopic rod and the pressure sensing module. The controller has a preset pressure value, a pressure change tolerance threshold, a minimum sleep time threshold, and a pressure decay prediction model. The controller collects monitoring data from the pressure sensing module according to a first fixed cycle and controls the extension rod to extend so that the real-time pressure value reaches the preset pressure value. After reaching the preset pressure value, it enters the pressure holding and maintenance stage. During the pressure holding and maintenance stage, the controller continuously calculates the deviation between the real-time pressure value and the preset pressure value. When the absolute value of the deviation is continuously within the pressure change tolerance threshold range, the controller controls the extension rod to enter a sleep state and stops active adjustment. When the absolute value of the deviation continuously exceeds the pressure change tolerance threshold range and the duration exceeds the minimum sleep time threshold, the controller wakes up the extension rod and drives its push rod to perform compensatory extension and retraction movements according to the PID control algorithm to eliminate the deviation. After being awakened during the subsequent pressure maintenance phase, the controller performs the following compensation operations: recording the sequence data of pressure value changes over time at a second fixed period; inputting the newly acquired sequence data into the pressure decay prediction model for recursive fitting and updating the model parameters; calculating the predicted pressure value at future time points using the updated model; generating a feedforward compensation command when the deviation between the predicted pressure value and the preset pressure value exceeds the pressure change tolerance threshold; superimposing the feedforward compensation command with the PID control command calculated based on the real-time pressure deviation to generate a composite control command; and outputting the composite control command to drive the telescopic rod.

2. The easily adjustable building structure reinforcement device as described in claim 1, characterized in that, The pressure decay prediction model is established through the following steps: A1. The controller controls the drive telescopic rod to apply force so that the pressure monitoring data reaches the initial preset pressure value; A2. The controller controls the push rod of the drive telescopic rod to stop moving and enters the pressure decay observation stage; A3. During the pressure decay observation phase, the monitoring data of the pressure sensing module is continuously collected and recorded at a first fixed sampling period for a predetermined learning time. A4. Perform nonlinear curve fitting on the recorded pressure-time series data to obtain the decay function and its model parameters that characterize the decay law of pressure over time. A5. Store the fitted decay function and its model parameters in the controller memory as the pressure decay prediction model for the current building structure under this pressure condition.

3. The easily adjustable building structure reinforcement device as described in claim 1, characterized in that, The lower end of the pressure rod is connected to the top of the push rod of the drive telescopic rod by a ball joint; the pressure sensing module is an axial force sensor, and a boss is provided at the center of the lower surface of the support structure, and a vertical through hole is opened in the boss; The device also includes a pressure-bearing column, a pre-tightening rod, and an annular component. The lower end of the pressure-bearing column is connected to the upper end of the pressure rod via a universal joint. The pressure-bearing column has a central threaded hole along its axis. The annular component is coaxially rotatably connected to the through hole of the boss via a bearing. The inner wall of the annular component has an internal thread. The pre-tightening rod is a double-ended stud. The lower end of the pre-tightening rod is screwed into the central threaded hole of the pressure-bearing column, and the upper end passes upward through the through hole in the center of the axial force sensor and is screwed into the internal threaded hole of the annular component. By rotating the annular component, the preloaded tie rod is driven to produce axial displacement relative to the support structure, thereby compressing the axial force sensor and applying preload to the support structure, the axial force sensor and the pressure column, so that the three are fixed into a whole force transmission component.

4. The easily adjustable building structure reinforcement device as described in claim 3, characterized in that, Also includes: A reflector plate is fixedly installed on the side of the pressure rod; A laser rangefinder is fixedly installed on the upper surface of the support base, with its laser emitting head facing the reflector; the laser rangefinder is electrically connected to the controller; The controller also has a pre-stored safe displacement threshold in its memory. The controller synchronously collects displacement monitoring data from the laser rangefinder. The controller compares the displacement monitoring data with the safe displacement threshold and executes a control loop only when the displacement monitoring data does not exceed the safe displacement threshold.

5. The easily adjustable building structure reinforcement device as described in claim 4, characterized in that, The drive telescopic rod is a servo electric cylinder; the transmission mechanism of the servo electric cylinder is a ball screw pair; the servo electric cylinder has a built-in electromagnetic brake and a built-in servo motor; the brake disc of the electromagnetic brake is connected to the motor shaft of the servo motor or the screw shaft of the ball screw; the electromagnetic brake is electrically connected to the controller; the controller performs the following operations: When controlling the servo electric cylinder to perform telescopic movement, the electromagnetic brake is de-energized and released; when controlling the servo electric cylinder to stop moving to maintain pressure, the electromagnetic brake is energized and engaged to lock the motor shaft or lead screw shaft.

6. The easily adjustable building structure reinforcement device as described in claim 1, characterized in that, It also includes a height coarse adjustment mechanism, which includes an outer sleeve and an inner rod. The outer sleeve has an elongated sliding hole arranged in the vertical direction. The inner rod is coaxially slidably sleeved inside the outer sleeve. The inner rod is provided with a connecting bolt. The connecting bolt passes horizontally through the sliding hole, and a fastening nut is screwed onto the protruding end of the connecting bolt. The cylinder of the drive telescopic rod is coaxially provided with a first connecting flange at its rear end, and the top end of the inner rod is coaxially provided with a second connecting flange. The first connecting flange and the second connecting flange are connected by connecting bolts.

7. The easily adjustable building structure reinforcement device as described in claim 4, characterized in that, It also includes a remote monitoring terminal; the controller is equipped with a wireless communication module; the remote monitoring terminal establishes a data connection with the controller through the wireless communication module, and is used to remotely set the preset pressure value, the pressure change tolerance threshold, and the safe displacement threshold, and to receive and display pressure and displacement monitoring data in real time.

8. A method for strengthening building structures, characterized in that, Reinforcement using the easily adjustable building structure reinforcement device as described in any one of claims 1 to 7 specifically includes the following steps: S1. Device placement: Fix the support base of the reinforcement device to the bearing foundation with anchor bolts, and make the upper end of the support structure contact the stress point of the building structure to be reinforced. S2. Parameter setting: Set the preset pressure value, pressure change tolerance threshold, and minimum sleep time threshold through the controller; S3. Initial pressurization: The controller controls the extension of the push rod of the telescopic rod, and applies pressure to the building structure through the pressure push rod and the pressure sensing module until the pressure monitoring data reaches the preset pressure value; S4, Pressure Holding: Entering the pressure holding phase, the controller continuously calculates the deviation between the real-time pressure value and the preset pressure value, and executes the following control cycle: S41: If the absolute value of the deviation remains within the pressure change tolerance threshold range, the control drive telescopic rod will enter a dormant state and stop adjusting. S42: If the absolute value of the deviation continues to exceed the pressure change tolerance threshold range and the duration exceeds the minimum sleep time threshold, the drive telescopic rod is awakened, and a control command is generated according to the PID control algorithm to drive the push rod to perform compensatory telescopic movement to eliminate the deviation. S5: Cyclic monitoring, repeating step S4 until the reinforcement work is completed.

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