Modularized assembly type reaction wall capable of intelligently regulating and controlling electromagnetic adsorption

Abstract

The invention provides a modular assembly type reaction wall capable of intelligently regulating and controlling electromagnetic adsorption, and belongs to the field of civil engineering test facilities, a reaction wall main body is formed by combining a plurality of standardized modules, multi-degree-of-freedom reconstruction between the standardized force bearing modules is realized through electromagnetic chucks, and a built-in load sensor feeds back a connection state in real time; and in cooperation with the matrix distribution design of the loading holes, a multi-form reaction wall structure can be quickly built according to test requirements. Each module unit comprises a concrete block, an embedded steel plate, an electromagnetic chuck, a loading hole and a load sensor. The device is characterized by comprising an electromagnetic adsorption interface with adjustable magnetic flux; a modular assembly error self-compensation mechanism is adopted; the invention discloses a distributed sensor network and an intelligent control system based on a PID algorithm. Compared with a traditional cast-in-place structure, the construction efficiency can be effectively improved, repeated disassembly and assembly of the modules are supported, the space adaptability is high, and the multi-scene test requirements of earthquake simulation, structure loading and the like are met.

Description

Technical Field

[0001] The present invention relates to the field of civil engineering structure test facilities, and particularly to a modular prefabricated reaction wall with intelligent regulation of electromagnetic adsorption. Background Art

[0002] Reaction walls are indispensable test facilities in structural laboratories, mainly used to provide horizontal reaction support. Its basic function is to provide a reaction force for the structural test loading device to resist the external load applied to the test component and ensure the stability of the loading device during the test. Reaction walls are characterized by high stiffness, high bearing capacity, strong stability, and large volume.

[0003] Although existing reaction walls play an important role in structural tests, with the development of test requirements, traditional reaction walls show some limitations in terms of performance and adaptability: Long construction period: Since the cast-in-place reaction wall is fixed at a specific position in the structural laboratory, during the construction process, cumbersome procedures such as precise positioning, foundation treatment, frame erection, and concrete pouring are required, resulting in a long construction time.

[0004] Temperature control defect: Due to its large volume, a large amount of concrete needs to be poured during the construction of the cast-in-place reaction wall. The concrete has a significant internal and external temperature difference due to the hydration reaction, and the temperature stress caused by this temperature difference may lead to temperature cracks in the concrete, thereby damaging the structural performance of the reaction wall.

[0005] Function solidification: The unidirectional load-bearing mechanism and fixed geometric mode of the cast-in-place reaction wall are difficult to meet the test requirements of multi-degree-of-freedom loading.

[0006] Low space utilization rate: The cast-in-place reaction wall occupies a large amount of space, and once designed and built, it is difficult to adjust or flexibly configure according to actual needs. Its size redundancy, rigid layout, and non-expandable characteristics seriously restrict the intensive utilization of laboratory space resources.

[0007] Therefore, there is an urgent need for an innovative reaction wall facility that can effectively overcome the above problems, achieve rapid construction, diverse functions, and efficient space utilization to adapt to the continuously developing test requirements.

[0008] The comparison with the prior art is as follows: Technical comparison with the patent "CN114607064A A modular detachable wall structure for prefabricated buildings" 1. Patent CN114607064A proposes a modular detachable wall structure for prefabricated buildings, aiming to solve the problems of low efficiency and insufficient modularization caused by the traditional wall relying on bolt fixation. This patent proposes a modular prefabricated reaction wall facility with intelligent electromagnetic adsorption control, aiming to achieve multi-degree-of-freedom reconstruction and dynamic adjustment of the reaction wall through modular design and electromagnetic adsorption technology, combined with an intelligent control system, so as to improve the construction efficiency, functional flexibility and space utilization rate of the reaction wall and meet diverse test requirements. There are essential differences in the technical objectives of the two.

[0009] 2. Patent CN114607064A generates magnetic force by energizing the electromagnetic coil to attract the ferromagnetic locking tongue to achieve a single mechanical unlocking function. This patent takes intelligent electromagnetic adsorption control as the core, and realizes the dynamic optimization of the adaptive adsorption force through electromagnetic chucks with adjustable magnetic flux, distributed sensing networks and closed-loop PID algorithms. There are essential differences in the technical paths of the two.

[0010] 3. Patent CN114607064A relies on the electromagnetic unlocking mechanism of mechanical pins to disassemble and assemble the wall through simple electromagnetic on-off control. This patent is equipped with an intelligent control system, including a sensor module (load and displacement sensors), a controller module and a feedback block, to achieve dynamic error self-compensation. There are essential differences in the core components and control logics of the two.

[0011] 4. Patent CN114607064A belongs to the field of civil prefabricated buildings, and its core function is to achieve the rapid disassembly and reuse of building walls. This patent is oriented to the field of civil engineering structure tests, and its core function is to provide a reconfigurable reaction support system for earthquake simulation and structural loading. There are essential differences in the application fields and core functions of the two.

[0012] Technical comparison with the patent "CN219909486U Modular Partition Wall Structure for Prefabricated Public Buildings" 1. Patent CN219909486U proposes a modular partition wall structure for prefabricated public buildings, aiming to solve the problem of low efficiency in the splicing of partition wall panels in the prior art. This patent aims to achieve rapid assembly and multi-degree-of-freedom reconstruction through modular design and intelligent control to meet the requirements of multi-test scenarios such as earthquake simulation and structural loading, aiming at the limitations of the long construction period, fixed functions and low space utilization rate of traditional cast-in-place reaction walls in civil engineering tests. There are essential differences in the technical objectives of the two.

[0013] 2. Patent CN219909486U adopts a mechanical locking mechanism of an electromagnet and a spring, relying on manual control of the on-off of the electromagnet to disassemble and assemble the partition wall. This patent is based on the coordination of intelligent electromagnetic adsorption and modular assembly, and realizes the dynamic adjustment of the adsorption force through the PID algorithm, supporting multi-degree-of-freedom reconstruction and self-compensation of assembly errors. There are essential differences in the technical paths of the two.

[0014] 3. Patent CN219909486U relies on mechanical connection and realizes the disassembly of the partition wall by the electromagnet attracting the connecting block. Its function is single and it cannot cope with the risks of load changes or connection failures. This patent uses an intelligent control system, including a sensor module (load and displacement sensors), a control module, and a feedback module, to monitor the service status of the reaction wall in real time, dynamically adjust the magnetic flux of the electromagnetic chuck, and achieve self-compensation for assembly errors. There are essential differences in the core components and control logics of the two. 4. Patent CN219909486U is aimed at the requirements of public building space partitioning, and its core function is rapid splicing and optimization of sound insulation performance. This patent is for the field of civil engineering tests, and its core function is multi-form combination and multi-degree-of-freedom reconstruction, which is applicable to the test requirements of multiple scenarios. There are essential differences in the application fields and core functions of the two. Summary of the Invention

[0015] To solve the limitations of long construction period, temperature control defects, fixed functions, and low space utilization rate of cast-in-place reaction walls, the present invention discloses a modular prefabricated reaction wall with intelligent control of electromagnetic adsorption.

[0016] To achieve the above object, the technical solution adopted by the present invention is: A modular prefabricated reaction wall with intelligent control of electromagnetic adsorption, characterized in that: it includes a reaction wall main body, a reaction pedestal, and an intelligent control system. The reaction wall main body is installed on the reaction pedestal. The reaction wall main body includes module units, and electromagnetic chucks with adjustable magnetic flux are arranged on the module units. The reaction wall main body is formed by splicing and assembling each module unit through the electromagnetic chucks. The electromagnetic chuck includes a bottom shell, a magnetic core, an electromagnetic coil, and a magnetic conductive panel. The magnetic core is welded to the bottom shell. The electromagnetic coil is nested on the magnetic core, and an insulating layer is formed by pouring epoxy resin between the electromagnetic coil and the bottom shell. The magnetic conductive panel is welded and fixed to the bottom shell. The intelligent control system is connected to each module unit for data. It includes a sensor module, a controller module, and a feedback module; the sensor module includes load sensors installed on the module units and displacement sensors fixed between the module units, which are used to monitor the load and displacement states between the module units in real time, collect the service data of the reaction wall main body, and transmit it to the controller module through a data bus; the controller module is used to receive the data transmitted by the sensor module, linearly combine the proportion, integral, and differential of the error signal based on the PID algorithm to generate a control instruction, and transmit the instruction to the feedback module; the feedback module transmits the control instruction of the controller module to the operation control system, changes the adsorption force between the module units by adjusting the magnetic flux of the electromagnetic chuck, and collects the adjusted state data and feeds it back to the system; if the adjustment state does not reach the preset threshold, continuous optimization is carried out, and dynamic control is achieved through cyclic iteration.

[0017] As a preferred technical solution of the present invention: the module unit also includes a first embedded steel plate on the side, a second embedded steel plate on the side, a first embedded steel plate on the top, a second embedded steel plate on the bottom, tension bolts, and a concrete block. The first embedded steel plate on the side and the second embedded steel plate on the side are connected and fixed by tension bolts. The first embedded steel plate on the top and the second embedded steel plate on the bottom are respectively fixed on the upper and lower end surfaces of the first embedded steel plate on the side and the second embedded steel plate on the side. The concrete block is cast in a steel frame composed of the first embedded steel plate on the side, the second embedded steel plate on the side, the first embedded steel plate on the top, the second embedded steel plate on the bottom, and tension bolts of the module unit. The bottom shell of the electromagnetic suction cup is fixed on the outside of the second embedded steel plate on the side and the second embedded steel plate on the bottom of the module unit.

[0018] As a preferred technical solution of the present invention: the first side embedded steel plate and the second side embedded steel plate of the module unit are respectively provided with holes for fixing the tension bolts, and also include hexagon socket bolts, which pass through the holes and are connected to the tension bolts and are located on the outside of the first side embedded steel plate, the second side embedded steel plate, the first top embedded steel plate and the second bottom embedded steel plate.

[0019] As a preferred technical solution of the present invention: loading holes are arranged in the module unit, the loading holes are evenly distributed in a matrix, and the center distance between adjacent loading holes is 500 mm.

[0020] As a preferred technical solution of the present invention: a seamless steel pipe is pre-buried inside the loading hole, an end plate is provided at the end to limit and fix the seamless steel pipe, and the axis of the seamless steel pipe is orthogonal to the horizontal plane of the end plate.

[0021] As a preferred technical solution of the present invention: the seamless steel pipe and the end plate are laser welded to form an integrated structure.

[0022] As a preferred technical solution of the present invention: the load sensor is installed on the second embedded steel plate on the side and the second embedded steel plate on the bottom of the module unit, a circular flange is provided at the bottom of the load sensor, bolt holes are opened on the circular flange, and the circular flange and the shell of the load sensor are an integrated forging structure, and the second embedded steel plate on the side and the second embedded steel plate on the bottom are respectively provided with threaded holes corresponding to the bolt holes of the circular flange.

[0023] As a preferred technical solution of the present invention: the displacement sensor is fixed between the module units using fixing bolts and fisheye ball joints.

[0024] As a preferred technical solution of the present invention: a slot is arranged above the reaction base, a latch is arranged at the bottom of the second embedded steel plate at the bottom edge, and the reaction wall body is installed above the reaction base through the latch.

[0025] In the above structure: The modular prefabricated reaction wall body of the present invention is composed of several module units, and realizes multi-degree-of-freedom reconstruction through electromagnetic chucks with adjustable magnetic flux, supports repeated disassembly and assembly, so as to achieve efficient construction and dynamic adjustment of the spatial layout; in this application, the reaction wall body is divided into several standardized module units, effectively avoiding the generation of temperature cracks during the pouring process of large-volume concrete; the service state of the reaction wall body is monitored and regulated in real time through the sensor module, ensuring the stability of the reaction wall body.

[0026] Intelligent regulation is also carried out through the set intelligent regulation system, which includes a sensor module, a controller module, and a feedback module; among them, the sensor module monitors the coupling state and relative slip between module units through load sensors installed on the second embedded steel plates on the sides and the second embedded steel plates on the bottom of the module units and displacement sensors fixed between the module units, and transmits this data to the controller module; the controller module receives the data transmitted by the sensor module, and based on the linear combination of the proportional (P), integral (I), and differential (D) parts of the error signal according to the PID algorithm, realizes precise control of the controlled object, and transmits the generated control signal to the feedback module; the feedback module feeds back the regulation instructions of the controller module to the system, discriminates whether the adjustment state meets the preset control threshold, and provides a basis for the next adjustment; the above three modules continuously iterate, so as to realize the dynamic regulation of the system.

[0027] Among them, the module unit is formed into a three-dimensional orthogonal steel frame structure by fixing the first embedded steel plate on the side, the second embedded steel plate on the side, the first embedded steel plate on the top, and the second embedded steel plate on the bottom through high-strength tension bolts and hexagon socket head cap screws; inside the steel frame, the tension bolts adopt M24 specification 10.9 grade high-strength bolts, and form permanent connection joints with the embedded steel plates through the perforated plug welding process; outside the steel frame, the embedded steel plates and the tension bolts are mechanically reinforced through hexagon socket head cap screws.

[0028] Among them, the bottom of the load sensor is provided with a circular flange, the circular flange is provided with bolt holes of Φ12mm, and the circular flange and the load sensor housing are of an integral forging structure; threaded holes corresponding to the circular flange are machined on the second embedded steel plates on the side and the second embedded steel plates on the bottom, and are fixed through hexagon socket head cap screws.

[0029] Among them, the structure of the electromagnetic chuck includes: a bottom shell, a magnetic core, an electromagnetic coil, and a magnetic conductive panel; the bottom shell is cast from DT4C electrical pure iron and is fixed to the second embedded steel plates on the side and the second embedded steel plates on the bottom through laser welding; the magnetic core is formed by stacking 0.1mm thick silicon steel sheets and is fixed to the bottom shell by laser welding and epoxy filling; the electromagnetic coil adopts H-class high-temperature resistant enameled wire (Φ1.5mm), is encapsulated by a vacuum impregnation process, and is nested in the magnetic core; the magnetic conductive panel adopts a soft magnetic composite material (SMC) with surface electroless nickel plating and is hermetically connected to the bottom shell through laser welding.

[0030] Among them, the loading holes are designed with a matrix distribution, and the spacing is 500 mm. The end plates are processed by full-automatic laser cutting technology and are used to limit and fix the seamless steel pipes embedded in the loading holes. The axis lofting is carried out by using a laser level to ensure that the axis of the seamless steel pipe is perpendicular to the end plate, and the stable connection between the loading hole and the end plate is realized through laser welding.

[0031] Among them, the concrete blocks are cast in layers with C60 self-compacting concrete and vibrated at high frequency to ensure the compactness.

[0032] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The construction efficiency is significantly improved: Through the industrial production of prefabricated standardized module units, the parallel operation of component processing, concrete curing and on-site construction is realized; the module units are connected by electromagnetic chucks with adjustable magnetic flux, significantly shortening the construction period.

[0033] 2. The structural performance and reliability are improved: The size control of the module units avoids the temperature cracks generated by the hydration reaction during the pouring of large-volume concrete, effectively improving the structural performance.

[0034] 3. The functional diversity and flexibility are enhanced: Through the standard modular design of the present invention, the module units are connected by electromagnetic chucks with adjustable magnetic flux, supporting multi-degree-of-freedom reconstruction, and the spatial layout form of the reaction wall can be quickly adjusted according to different test requirements such as seismic simulation and structural loading.

[0035] 4. The space utilization rate is greatly improved: The traditional cast-in-place reaction wall has a low space utilization rate due to its fixed layout and size redundancy, and it is difficult to adjust after completion; the standard modular design and repeated disassembly and assembly characteristics of the present invention enable the reaction wall facilities to be flexibly configured and optimized according to actual needs, avoiding space waste and significantly improving the intensive utilization rate of laboratory space resources.

[0036] 5. The stability and safety are significantly improved: The traditional cast-in-place reaction wall lacks a real-time monitoring and control mechanism, and its stability is difficult to guarantee; the present invention introduces an intelligent control system, and through the cyclic iteration among the sensor module, the controller module and the feedback module, the stability and safety of the reaction wall under complex loading conditions are further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the main structure of the reaction wall of the present invention; Figure 2 It is a schematic diagram of the disassembly and assembly of the module unit of the present invention; Figure 3 It is a schematic diagram of the overall module unit of the present invention; Figure 4Schematic diagram of the installation of the module unit loading holes of the present invention; Figure 5 Schematic diagram of the steel frame of the module unit of the present invention; Figure 6 Schematic diagram of the structure of the electromagnetic chuck of the present invention; Figure 7 Schematic diagram of the disassembly and assembly of the first module unit and the second module unit of the present invention; Figure 8 Schematic diagram of the installation of the displacement sensor of the present invention; Figure 9 Intelligent regulation flow chart of the present invention.

[0038] List of reference numerals: 1. Reaction wall main body; 110. First module unit; 1101. Electromagnetic chuck; 1102. Bottom shell; 1103. Magnetic core; 1104. Electromagnetic coil; 1105. Magnetic conductive panel; 1106. First embedded steel plate on the side; 1107. Second embedded steel plate on the side; 1108. First embedded steel plate on the top; 1109. Second embedded steel plate on the bottom; 1110. Tie bolt; 1111. Concrete block; 1112. Hexagon socket head bolt; 1113. Loading hole; 1114. Seamless steel pipe; 1115. End plate; 120. Second module unit; 130. Third module unit; 140. Fourth module unit; 150. Displacement sensing device; 1501. Displacement sensor; 1502. Fixed bolt; 1503. Ball eye hinge; 160. Load sensor device; 1601. Load sensor; 1602. Circular flange; 2. Reaction pedestal; 3. Intelligent regulation system. Detailed implementation manners

[0039] The present invention will be further described in detail below in conjunction with the drawings and the specific implementation manners: As Figure 1-2 shown, the modular assembled reaction wall with intelligent regulation and electromagnetic adsorption proposed by the present invention includes a reaction wall main body 1, a reaction pedestal 2 and an intelligent regulation system 3. The reaction wall main body 1 is installed on the reaction pedestal 2. The reaction wall main body 1 includes a plurality of module units, and electromagnetic chucks 1101 with adjustable magnetic flux are arranged on each module unit. The reaction wall main body 1 is formed by splicing and assembling each module unit through the electromagnetic chucks 1101, and supports repeated disassembly and assembly as well as multi-degree-of-freedom reconstruction.

[0040] The electromagnetic chuck 1101 includes a bottom shell 1102, a magnetic core 1103, an electromagnetic coil 1104, and a magnetic conductive panel 1105. The magnetic core 1103 is welded to the bottom shell 1102. The electromagnetic coil 1104 is nested on the magnetic core 1103, and an insulating layer is formed by pouring epoxy resin between the electromagnetic coil 1104 and the bottom shell 1102. The magnetic conductive panel 1105 is fixedly welded to the bottom shell 1102.

[0041] The intelligent control system 3 is connected to each module unit for data. It includes a sensor module, a controller module, and a feedback module. The sensor module includes load sensors 1601 installed on the second embedded steel plates 1107 on the sides and the second embedded steel plates 1109 on the bottom edges of the module units, and displacement sensors 1501 fixed between the module units, which are used to monitor the load and displacement states between the module units in real time, collect the service data of the reaction wall body 1, and transmit them to the controller module through a data bus. The controller module is used to receive the data transmitted by the sensor module, linearly combine the proportional, integral, and differential of the error signal based on the PID algorithm to generate a control instruction, and transmit the instruction to the feedback module. The feedback module transmits the control instruction of the controller module to the operation control system, changes the adsorption force between the module units by adjusting the magnetic flux of the electromagnetic chuck 1101, and collects the adjusted state data and feeds it back to the system. If the adjusted state does not reach the preset threshold, continuous optimization is carried out, and dynamic control is achieved through cyclic iteration.

[0042] As Figure 3 、 Figure 4 shown, the module unit is composed of a first embedded steel plate 1106 on the side, a second embedded steel plate 1107 on the side, a first embedded steel plate 1108 on the top edge, a second embedded steel plate 1109 on the bottom edge, a load sensor 1601, a tie bolt 1110, a concrete block 1111, an internal hexagonal bolt 1112, and a loading hole 1113.

[0043] The embedded steel plates are all made of Q355B low-alloy steel plates, formed by laser cutting, with the dimensional tolerance controlled within ±0.5 mm. The embedded steel plates are reserved with tie bolt holes of Φ28 mm, and at the same time, the inner surface is sandblasted to enhance the bonding strength with the concrete block 1111.

[0044] The tie bolt 1110 is a high-strength bolt of M24 specification 10.9 grade. After being inserted into the reserved hole of the embedded steel plate, it is fixed by the perforation plug welding technology to form a three-dimensional orthogonal steel frame structure. In addition, outside the steel frame, the embedded steel plate and the tie bolt 1110 are mechanically reinforced by the internal hexagonal bolt 1112 to enhance the stability of the steel frame.

[0045] The load sensor 1601 is integrally forged from Q355B low alloy steel for the housing of the load sensor 1601 and the circular flange 1602. The circular flange 1602 is machined with Φ12mm threaded holes by a numerically controlled machine tool; the embedded steel plate is provided with threaded holes corresponding to the circular flange 1602, and the load sensor 1601 and the embedded steel plate are mechanically fixed by hexagon socket head cap screws.

[0046] The loading holes 1113 are designed with a matrix distribution, and the spacing between the loading holes 1113 is 500mm; the end plate 1115 is machined by a fully automatic laser cutting technology to limit and fix the seamless steel pipe 1114 embedded in the loading holes 1113. The axis lofting is carried out by using a laser level to ensure that the axis of the seamless steel pipe 1114 is perpendicular to the end plate 1115; the seamless steel pipe 1114 and the end plate 1115 are fixed by laser welding.

[0047] The concrete block 1111 is cast in layers with C60 self-compacting concrete and vibrated with a high-frequency vibrating rod to eliminate air bubbles and surface pitting.

[0048] As Figure 5 shown, the electromagnetic chuck 1101 is composed of a bottom shell 1102, a magnetic core 1103, an electromagnetic coil 1104, and a magnetic conductive panel 1105.

[0049] The bottom shell 1102 is cast from DT4C electrolytic iron and connected to the second embedded steel plate 1107 on the side and the second embedded steel plate 1109 on the bottom by laser welding.

[0050] The magnetic core 1103 is formed by laminating 0.1mm thick silicon steel sheets, and the magnetic core 1103 is fixed in the inner cavity of the bottom shell 1102 by laser welding and epoxy filling.

[0051] The electromagnetic coil 1104 uses H-class high-temperature enameled wire (Φ1.5mm). After vacuum impregnation and insulation encapsulation, it is nested in the magnetic core 1103.

[0052] The magnetic conductive panel 1105 uses a soft magnetic composite material (SMC) with a nickel-plated surface and is hermetically connected to the bottom shell 1102 by laser welding.

[0053] The working principle of the electromagnetic chuck 1101: Based on the electromagnetic induction law and the principle of magnetic field interaction, when current passes through the electromagnetic coil 1104, the magnetic core 1103 and the electromagnetic coil 1104 form a closed magnetic circuit, generating a strong magnetic field. The magnetic field penetrates the workpiece through the magnetic conductive panel 1105, inducing eddy currents in the workpiece and forming a reverse magnetic field. The two interact to form an adsorption force; in the electromagnetic chuck 1101, the magnitude of the magnetic flux directly determines the strength of the adsorption force. By adjusting the magnetic field strength, optimizing the magnetic circuit design, and controlling the current parameters, precise regulation of the magnetic flux can be achieved.

[0054] Design steps of the electromagnetic chuck 1101: 1. Determine the adsorption force requirement: Assume the maximum shear force transmitted between module units is V , the maximum bending moment is M , the contact surface friction coefficient is , the perpendicular distance from the bearing point of the reaction wall structure to the normal adsorption force action line generated by the electromagnetic chuck is L , and the safety factor is k (take 1.5 - 2.0). The normal adsorption force F that the electromagnetic chuck needs to generate should satisfy: (1) 2. Select the working current and voltage: The electromagnetic chuck usually uses direct current. Select the working voltage V , and calculate the current according to the coil resistance R : (2) 3. Calculate the magnetic induction intensity B : First, determine the area of the electromagnetic chuck A and the vacuum permeability 0, and then, according to the adsorption force formula, reverse-calculate the required magnetic induction intensity B : (3) 4. Design the magnetic core and electromagnetic coil: Select a high-permeability material (such as silicon steel sheet, permeability r ) as the magnetic core, and determine the magnetic core length L 0; Calculate the number of coil turns N according to the magnetic induction intensity formula.

[0055] (4) 5. Calculate the coil resistance and power: Resistance R : Select the wire material, calculate the total length of the coil l = N * length per turn, and calculate the resistance according to the wire resistivity S and area R : (5) Power P : (6) Such as Figure 6As shown, there are multiple module units, such as the first module unit 110, the second module unit 120, the third module unit 130, the fourth module unit 140, etc.; the second module unit 120, the third module unit 130, the fourth module unit 140, etc. are the same as the first module unit 110 in terms of structure and the components installed thereon, and the module units are assembled through an electromagnetic chuck 1101.

[0056] As Figure 7 shown, the displacement sensor 1501 is fixed between the module units using fixing bolts 1502 and a ball eye hinge 1503, and is used to monitor the slip between the module units.

[0057] The intelligent control system described in the present invention includes: a sensor module, a controller module, and a feedback module.

[0058] The sensor module includes load sensors 1601 installed on the second embedded steel plates 1107 on the side and the second embedded steel plates 1109 on the bottom of the module unit, and displacement sensors 1501 fixed between the module units. It is the "perception center" of the intelligent control system, responsible for monitoring the service state of the reaction wall, collecting key data, and transmitting the data to the controller module, providing data support for the self-compensation of modular assembly errors.

[0059] The controller module is used to receive the data transmitted by the sensor. It is the "decision center" of the system. According to the PID algorithm, a control instruction is generated by the linear combination of the proportional (P), integral (I), and differential (D) parts of the error signal, and the instruction is transmitted to the feedback module.

[0060] The feedback module is the "feedback center" of the system, responsible for executing the control instruction and feeding back the result to the system; after receiving the control instruction, the feedback system determines whether it meets the preset control threshold. If the control threshold condition is not met, the system needs to operate to adjust the magnetic flux of the electromagnetic chuck and adjust the adsorption force between the module units; at the same time, the state data after adjustment is collected.

[0061] As Figure 8 shown, the intelligent control system realizes dynamic control through the following closed-loop process: 1. Data acquisition: The sensor module monitors the load and displacement data in real time; 2. Data transmission: The data is sent to the controller module through a high-speed bus; 3. Analysis and decision-making: The controller module generates a control signal based on the PID algorithm; 4. Execution of control: The feedback module changes the magnetic flux of the electromagnetic chuck 1101 according to the signal and adjusts the connection state; 5. State feedback: The feedback module feeds back the adjustment result and determines whether it meets the control threshold condition; 6. Cyclic Iteration: The above steps continue to run to maintain the dynamic balance of the system.

[0062] Based on the above structure, in the actual use of the present invention: Significant improvement in construction efficiency: Through the industrialized production of prefabricated standardized module units, parallel operations of component processing, concrete curing, and on-site construction are realized; the module units are connected by electromagnetic chucks 1101 with adjustable magnetic flux, significantly shortening the construction period.

[0063] Improvement in structural performance and reliability: The size control of the module units avoids temperature cracks generated by the hydration reaction during the pouring of large-volume concrete, effectively improving the structural performance.

[0064] Enhanced functional diversity and flexibility: Through standard modular design, the module units of the present invention are connected by electromagnetic chucks 1101 with adjustable magnetic flux, supporting multi-degree-of-freedom reconstruction, and can quickly adjust the spatial layout form of the main body 1 of the reaction wall according to different test requirements such as seismic simulation and structural loading.

[0065] Great improvement in space utilization: The traditional cast-in-place reaction wall has a low space utilization rate due to its fixed layout and dimensional redundancy, and it is difficult to adjust after completion; the standard modular design and repeated disassembly and assembly characteristics of the present invention enable the main body 1 of the reaction wall to be flexibly configured and optimized in layout according to actual needs, avoiding space waste and significantly improving the intensive utilization rate of laboratory space resources.

[0066] Significant improvement in stability and safety: The traditional cast-in-place reaction wall lacks a real-time monitoring and control mechanism, and its stability is difficult to guarantee; the present invention introduces an intelligent control system, and through the cyclic iteration among the sensor module, the controller module, and the feedback module, further improves the stability and safety of the reaction wall under complex loading conditions.

[0067] The above is only a preferred embodiment of the present invention, and it is not a limitation of the present invention in any other form. Any modification or equivalent change made according to the technical essence of the present invention still belongs to the scope protected by the present invention.

Claims

1. The modular assembled reaction wall with intelligently controlled electromagnetic adsorption is characterized by: The invention comprises a reaction wall body (1), a reaction base (2) and an intelligent control system (3), wherein the reaction wall body (1) is mounted on the reaction base (2), the reaction wall body (1) comprises a module unit, and an electromagnetic chuck (1101) with adjustable magnetic flux is arranged on the module unit. The reaction wall body (1) is formed by assembling the module units together through the electromagnetic chuck (1101), and the electromagnetic chuck (1101) comprises a bottom shell (1102), a magnetic core (1103), an electromagnetic coil (1104), and a magnetic conductive panel (1105). The magnetic core (1103) is welded to the bottom shell (1102), and the electromagnetic coil (1104) is nested on the magnetic core (1103), and a magnetic conductive panel (1105) is filled between the electromagnetic coil (1104) and the bottom shell (1102). Epoxy resin is injected to form an insulating layer, the magnetic conductive panel (1105) is welded and fixed to the bottom shell (1102), and the intelligent control system (3) is connected to each module unit for data connection, and comprises a sensor module, a controller module and a feedback module; the sensor module comprises a load sensor (1601) installed on the module unit and a displacement sensor (1501) fixed between each module unit, which is used to monitor the load and displacement status between each module unit in real time, collect the service data of the reaction wall body (1), and transmit it to the controller module through the data bus; the controller module is used to receive the data transmitted by the sensor module, and linearly combine the proportion, integration and differentiation of the error signal based on the PID algorithm, generate a control instruction, and transmit the instruction to the feedback module; The feedback module transmits the control instructions of the controller module to the operation control system, changes the adsorption force between the module units by adjusting the magnetic flux of the electromagnetic suction cup (1101), and collects the adjusted state data and feeds it back to the system; if the adjustment state does not reach the preset threshold, it continues to optimize, and realizes dynamic control through cyclic iteration.

2. The modular assembled reaction wall with intelligent controllable electromagnetic adsorption according to claim 1 is characterized by: The module unit further comprises a first embedded steel plate (1106) on the side, a second embedded steel plate (1107) on the side, a first embedded steel plate (1108) on the top, a second embedded steel plate (1109) on the bottom, tension bolts (1110), and a concrete block (1111). The first embedded steel plate (1106) on the side and the second embedded steel plate (1107) on the side are connected and fixed by the tension bolts (1110), and the first embedded steel plate (1108) on the top and the second embedded steel plate (1109) on the bottom are respectively fixed to the first embedded steel plate (1106) on the side. 6) and the upper and lower end surfaces of the second embedded steel plate (1107) on the side, the concrete block (1111) is cast in a steel frame composed of the first embedded steel plate (1106) on the side of the module unit, the second embedded steel plate (1107) on the side, the first embedded steel plate (1108) on the top side, the second embedded steel plate (1109) on the bottom side, and the tension bolts (1110), and the bottom shell (1102) of the electromagnetic suction cup (1101) is fixed on the outer side of the second embedded steel plate (1107) on the side of the module unit and the second embedded steel plate (1109) on the bottom side.

3. The modular assembled reaction wall with intelligent controllable electromagnetic adsorption according to claim 2 is characterized by: The first side embedded steel plate (1106) and the second side embedded steel plate (1107) of the module unit are respectively provided with holes for fixing the tension bolts (1110), and also include hexagon socket bolts (1112). The hexagon socket bolts (1112) pass through the holes and are connected to the tension bolts (1110) and are located on the outside of the first side embedded steel plate (1106), the second side embedded steel plate (1107), the first top embedded steel plate (1108) and the second bottom embedded steel plate (1109).

4. The modular assembled reaction wall with intelligent controllable electromagnetic adsorption according to claim 2 is characterized by: Loading holes (1113) are arranged in the module unit, and the loading holes (1113) are evenly distributed in a matrix, and the center spacing between adjacent loading holes (1113) is 500 mm.

5. The modular assembled reaction wall with intelligent controllable electromagnetic adsorption according to claim 4 is characterized in that: A seamless steel pipe (1114) is pre-buried inside the loading hole (1113), and an end plate (1115) is provided at the end to limit and fix the seamless steel pipe (1114), and the axis of the seamless steel pipe (1114) is orthogonal to the horizontal plane of the end plate (1115).

6. The modular assembled reaction wall with intelligent controllable electromagnetic adsorption according to claim 5 is characterized by: The seamless steel pipe (1114) and the end plate (1115) are laser welded to form an integrated structure.

7. The modular assembled reaction wall with intelligent controllable electromagnetic adsorption according to claim 1 or 2, characterized in that: The load sensor (1601) is installed on the second embedded steel plate (1107) on the side and the second embedded steel plate (1109) on the bottom of the module unit. A circular flange (1602) is provided at the bottom of the load sensor (1601). Bolt holes are provided on the circular flange (1602), and the circular flange (1602) and the shell of the load sensor (1601) are an integrated forging structure. The second embedded steel plate (1107) on the side and the second embedded steel plate (1109) on the bottom are respectively provided with threaded holes corresponding to the bolt holes of the circular flange (1602).

8. The modular assembled reaction wall with intelligent controllable electromagnetic adsorption according to claim 1 is characterized by: The displacement sensor (1501) is fixed between the module units using fixing bolts (1502) and fisheye ball joints (1503).

9. The modular assembled reaction wall with intelligent controllable electromagnetic adsorption according to claim 1 or 2, characterized in that: A slot is provided above the reaction base (2), a latch is provided at the bottom of the second embedded steel plate (1109) at the bottom edge, and the reaction wall body (1) is installed above the reaction base (2) via the latch.

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