Reinforced concrete two-way plate strength detection equipment and detection method

Abstract

The invention belongs to the technical field of reinforced concrete testing, and particularly relates to reinforced concrete two-way plate strength detection equipment and detection method.The reinforced concrete two-way plate strength detection equipment comprises a carrier assembly, a testing assembly is arranged on the carrier assembly, a moving assembly is arranged in the carrier assembly, a clamping assembly is arranged on the moving assembly, and a two-way plate is arranged in the clamping assembly; the carrier assembly comprises a box body, a central control module is arranged on one side of the box body, and a frame is fixedly connected to the upper end face of the box body; the testing assembly comprises a sliding frame, the bottom of the sliding frame is in sliding connection with the frame, a sliding screw rod is rotationally connected to the interior of the sliding frame, one end of the sliding screw rod is connected with a sliding motor, and the sliding screw rod is in threaded connection with a sliding block; the reinforced concrete two-way plate detection equipment is wide in detection range, diversified in detection mode, high in detection precision, good in vibration reduction effect, stable, reliable, low in operation difficulty and suitable for batch detection of the strength of two-way plates.

Description

Technical Field

[0001] The invention belongs to the technical field of reinforced concrete testing, and in particular relates to reinforced concrete bidirectional slab strength testing equipment and a testing method. Background Art

[0002] Reinforced concrete two-way slab is an important component widely used in building structures. It has sufficient bending resistance in both directions to bear loads. Two-way slabs bear various loads during use, such as live loads such as personnel, furniture, equipment, and dead loads such as the dead weight of the structure. If the strength of the two-way slab is insufficient, cracks, excessive deformation, or even fractures may occur under the load, resulting in overall structural instability and causing serious safety accidents. Through strength testing, it is possible to promptly find out whether the strength of the two-way slab meets the design requirements, ensure its safety during use, and protect the safety of personnel and property.

[0003] A Chinese patent application with application number 202310929746.X discloses a testing device for detecting the bearing capacity of reinforced concrete. The testing device for detecting the bearing capacity of reinforced concrete is provided with an extrusion plate so that a spring reset drives the extrusion plate to fix the reinforced concrete; the fixing effect of the testing device is poor, which affects the accuracy of the test results.

[0004] When actually testing the strength of a two-way slab, the existing technology cannot effectively test different positions and different stress conditions of the two-way slab, which affects the accuracy of the test results. The test mode is single and the practicality is poor.

[0005] In addition, the bidirectional plate usually has a large plane size, and the existing detection device cannot fully adapt to its size changes. It is easy to shake and move out of position during the clamping process, thereby reducing the stability of the detection process and affecting the detection results.

[0006] During the inspection of the bidirectional plate, the vibration of the inspection equipment will interfere with the pressure sensor, causing the measured data to fluctuate and err easily. At the same time, the vibration will cause the inspection equipment to shake significantly, affecting the overall stability of the equipment and further affecting the accuracy of the inspection results. Summary of the invention

[0007] In view of the above problems, the present invention provides a reinforced concrete bidirectional slab strength detection device and a detection method to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions: a reinforced concrete two-way slab strength testing device, comprising a carrier assembly, a testing assembly is arranged on the carrier assembly, a moving assembly is arranged inside the carrier assembly, a clamping assembly is arranged on the moving assembly, and a two-way slab is arranged inside the clamping assembly; The carrier assembly comprises a box body, a central control module is arranged on one side of the box body, and a frame is fixedly connected to the upper end surface of the box body; The test assembly comprises a sliding frame, the bottom of the sliding frame is slidably connected to the frame, a sliding screw is rotatably connected inside the sliding frame, one end of the sliding screw is connected to a sliding motor, a sliding block is threadedly connected to the sliding screw, a force cylinder is fixedly connected to the bottom of the sliding block, a force member is fixedly connected to the output end of the force cylinder, and a pressure sensor is provided on the force member; Preferably, the moving assembly includes two fixed blocks, the bottoms of the two fixed blocks are fixedly connected to the box body, two moving blocks are arranged between the opposite end faces of the two fixed blocks, threaded holes are opened inside the moving blocks, bidirectional screws are threadedly connected inside the threaded holes, the bidirectional screws are rotatably connected inside the fixed blocks, and one end of the bidirectional screws is connected to a moving motor.

[0009] Preferably, the test assembly also includes two limit blocks, which are respectively arranged on both sides of the frame, and the bottom of the limit blocks is fixedly connected to the frame. A sliding hole is opened on one side of the sliding frame, and a displacement screw is threadedly connected inside the sliding hole. The displacement screw is rotatably connected inside the two limit blocks, and one end of the displacement screw is connected to a displacement motor.

[0010] Preferably, the moving components are provided with two groups, the two groups of moving components are cross-arranged vertically, and there is a gap between the bidirectional screws of the two groups of moving components.

[0011] Preferably, the clamping assembly includes four groups of telescopic cylinders, the bottoms of the four groups of telescopic cylinders are respectively fixedly connected to the four corners of the upper end surface of the moving block, the output end of the telescopic cylinder is connected to the rotating block, the side wall of the rotating block is rotatably connected to the connecting block through a bearing, the top of the connecting block is fixedly connected to the support plate, an adjusting rod is provided in the middle of the upper end surface of the support plate, a movable groove is opened inside the adjusting rod, a displacement rod is sealingly and slidably connected inside the movable groove, and a pressure plate is fixedly connected to the displacement rod.

[0012] Preferably, the inner bottom of the movable groove is linearly and evenly provided with a plurality of electromagnetic plates, the bottoms of the plurality of electromagnetic plates are fixedly connected to the support plate, the tops of the plurality of electromagnetic plates are provided with reset springs, the tops of the reset springs are provided with a magnetic plate, the magnetic plate is slidably connected to the inner wall of the movable groove, the top of the magnetic plate is fixedly connected to the displacement rod, and the relative end faces of the electromagnetic plate and the magnetic plate have different magnetic properties.

[0013] Preferably, the bottom inner side of the adjusting rod is connected to an elastic frame near the force-applying member, a plurality of ventilation holes are evenly arranged on the top of the elastic frame, the other side of the bottom inner side of the adjusting rod is connected to a ventilation pipe, the other side of the ventilation pipe is connected to an air pump, and the other side of the air pump is connected to a connecting pipe.

[0014] Preferably, a bidirectional plate is provided between the elastic frames and the opposite end surfaces of the pressure plates of the plurality of groups of the clamping assemblies.

[0015] The present invention also provides a reinforced concrete two-way slab strength detection method, the detection method comprising the following steps: Step 1: According to the size of the two-way plate and the number of force-bearing supports, the moving assembly is controlled to move so that the elastic frame supports the two-way plate. Then, the electromagnetic plate is energized and the current is gradually increased until it is close to the upper end surface of the two-way plate, completing the clamping and fixing of the two-way plate. The air pump is controlled to start the air extraction work. At this time, the air inside the movable groove and the elastic frame is continuously discharged into the external environment, thereby increasing the negative pressure adsorption force of the elastic frame on the two-way plate; Step 2: Control the force-applying member to move to the detection point and apply force to the bidirectional plate at a set rate. During the loading process, the central control module reads the reading detected by the pressure sensor in real time; Step 3: Use the expansion and contraction of the reset spring to monitor the vibration of the two-way plate during the detection process. When the reset spring detects that the vibration intensity of the equipment is relatively small, the air pump introduces high-pressure gas into the movable groove and the elastic frame, and increases the current of the electromagnetic plate to compress the gas volume inside the movable groove, so that the air pressure inside the movable groove and the elastic frame gradually increases to 50% of the rated maximum air pressure. When the reset spring detects that the vibration intensity of the equipment is relatively large, the air pump continues to introduce high-pressure gas into the movable groove and the elastic frame, and increases the current of the electromagnetic plate to compress the gas volume inside the movable groove. At this time, the air pressure inside the movable groove and the elastic frame increases to the rated maximum air pressure; Step 4: After completing the inspection of the inspection point, the force cylinder then controls the force member to move upward away from the two-way plate, and the sliding motor and the displacement motor are started successively, prompting the force member to move to the next inspection point.

[0016] Compared with the prior art, this application has the following advantages: 1. Through the mutual cooperation of components such as carrier components, test components, moving components and clamping components, the detection equipment has a wide detection range, diverse detection methods, high detection accuracy, good vibration reduction effect, stability and reliability, low operation difficulty, and is suitable for batch detection of the strength of two-way plates.

[0017] 2. The present application sets up the cooperation of components such as the telescopic cylinder, the electromagnetic plate, the elastic frame and the air pump, controls the electromagnetic plate to be energized and the current to gradually increase, controls the air pump to start the vacuum work to form a negative pressure, so that the pressure plate and the elastic frame clamp and fix the two-way plate. At the same time, by controlling the shortening of the telescopic cylinder, the number of support points of the two-way plate is adjusted, so as to meet the strength detection method of the two-way plate under different force conditions, thereby effectively improving the diversity of two-way plate detection.

[0018] 3. The present application monitors the vibration of the two-way plate detection process by utilizing the expansion and contraction of the reset spring. By arranging the cooperation of components such as the reset spring, air pump, electromagnetic plate and elastic frame, the air pump introduces high-pressure gases of different pressures into the movable groove and the elastic frame, and the electromagnetic plate compresses the internal volume of the movable groove, so that the clamping assembly has the functions of soft vibration reduction and hard vibration reduction, thereby realizing the adaptive adjustment function of the clamping assembly for vibration reduction under different vibration conditions during the two-way plate detection process.

[0019] 4. The present application controls the displacement of the moving block to enable the elastic frame to support the two-way plate by setting the mutual cooperation of components such as the moving block and the elastic frame, thereby meeting the detection requirements of two-way plates of different sizes and improving the detection range; by setting the mutual cooperation of components such as the sliding motor 1, the sliding motor 2, the force cylinder and the force member, the force member is controlled to move to the detection point, and the two-way plate is forced to squeeze at a set rate, thereby completing multi-point detection of the two-way plate, effectively improving the diversity and detection efficiency of the two-way plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first viewing angle; Figure 2 It is a schematic diagram of the overall structure of the present invention from a second viewing angle; Figure 3 It is a schematic diagram of the structure of the carrier assembly of the present invention; Figure 4 It is a schematic diagram of the structure of the test assembly of the present invention; Figure 5 It is a schematic diagram of the structure of the clamping assembly of the present invention; Figure 6 for Figure 5 The enlarged schematic diagram at A in the middle; Figure 7 for Figure 5 A schematic diagram of the internal three-dimensional structure from the front view; Figure 8 It is a schematic diagram of the exploded structure of the clamping assembly of the present invention; Fig. 9 It is a schematic diagram of the structure of the mobile component of the present invention; Fig.10 It is a schematic diagram of the four-side support loading structure of the two-way plate of the present invention.

[0021] In the figure: 1, carrier assembly; 101, box; 102, central control module; 103, frame; 2, test assembly; 201, sliding frame; 202, sliding screw; 203, sliding motor; 204, sliding block; 205, force cylinder; 206, force member; 207, limit block; 208, sliding hole; 209, displacement screw; 210, displacement motor; 3, moving assembly; 301, fixed block; 302, moving block; 303, threaded hole; 3 04. Bidirectional screw; 305. Mobile motor; 4. Clamping assembly; 401. Telescopic cylinder; 402. Support plate; 403. Adjusting rod; 404. Movable slot; 405. Displacement rod; 406. Electromagnetic plate; 407. Reset spring; 408. Magnetic plate; 409. Elastic frame; 410. Ventilation hole; 411. Ventilation pipe; 412. Air pump; 413. Connecting pipe; 414. Pressing plate; 415. Rotating block; 416. Connecting block; 5. Bidirectional plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In order to solve the problem that when the strength of the two-way plate 5 is actually tested, the existing technology cannot effectively test the two-way plate 5 at different positions and under different stress conditions, thus affecting the accuracy of the test results, the detection mode is single and the practicality is poor, the two-way plate 5 usually has a large plane size, and the existing detection device cannot fully adapt to its size change. When the local fixation is not firm or the force is uneven during the clamping process, phase shaking and movement deviation are likely to occur, thereby reducing the stability of the detection process and affecting the test results. Embodiment 1 is proposed.

[0024] Embodiment 1: like Figure 1-10As shown, a reinforced concrete bidirectional slab strength testing device comprises a carrier component 1, wherein the length, width and height of the carrier component 1 are respectively defined as the X-axis, Y-axis and Z-axis of the testing device, and the carrier component 1 is used to provide stable physical support for the testing device, and a test component 2 is provided on the carrier component 1, and the test component 2 performs subsequent precise testing after the installation of the bidirectional slab 5 is completed. A moving component 3 is provided inside the carrier component 1, and the moving component 3 mainly adjusts the position of the moving block 302 to adapt to bidirectional slabs 5 of different sizes, and a clamping component 4 is provided on the moving component 3, and a bidirectional slab 5 is provided inside the clamping component 4, and the clamping and fixing function of the clamping component 4 is used to keep the bidirectional slab 5 stable to prevent it from shaking and moving out of position during the testing process.

[0025] The carrier component 1 includes a box body 101, which can wrap and protect the internal electrical components and serve as a working platform for other components to form a complete detection system. A central control module 102 is provided on one side of the box body 101. The central control module 102 is electrically connected to each electrical component and can detect and control the status of each electrical component. A frame 103 is fixedly connected to the upper end face of the box body 101, and the frame 103 is used to support the test component 2 used to detect the strength of the bidirectional board 5.

[0026] The test component 2 includes a sliding frame 201, the bottom of which is slidably connected to the frame 103, and the sliding frame 201 can move left and right along the X-axis direction of the frame 103. The sliding frame 201 is rotatably connected to a sliding screw 202 inside, and one end of the sliding screw 202 is connected to a sliding motor 203. A sliding block 204 is threadedly connected to the sliding screw 202. When the sliding motor 203 is started, the sliding screw 202 is driven to rotate through the output end, thereby driving the sliding block 204 to slide along the length direction of the sliding screw 202. A force cylinder 205 is fixedly connected to the bottom of the sliding block 204, and a force member 206 is fixedly connected to the output end of the force cylinder 205. The force cylinder 205 controls the force member 206 to move up and down until it hits the detection point on the upper end surface of the two-way plate 5, and then subsequent detection is performed. A pressure sensor is provided on the force member 206, and the pressure sensor is used to detect the force condition of the two-way plate 5, thereby detecting its strength.

[0027] The test assembly 2 also includes two limit blocks 207, which are respectively arranged on both sides of the frame 103, and the bottom of the limit blocks 207 is fixedly connected to the frame 103. A sliding hole 208 is opened on one side of the sliding frame 201, and a displacement screw 209 is threadedly connected inside the sliding hole 208. The displacement screw 209 is rotatably connected inside the two limit blocks 207. One end of the displacement screw 209 is connected to a displacement motor 210, and the displacement screw 209 is driven to rotate by the output end of the displacement motor 210. The displacement screw 209 drives the sliding frame 201 to slide in the opposite direction along the length of the displacement screw 209 through the action of the thread. In the above process, the sliding motor 203 and the displacement motor 210 cooperate with each other to enable the sliding block 204 to move freely in the XY plane, and at the same time, the force cylinder 205 controls the force member 206 to move up and down in the Z axis, thereby realizing multi-point detection of the bidirectional plate 5.

[0028] The moving component 3 includes two fixed blocks 301 for supporting the moving component 3. The bottoms of the two fixed blocks 301 are fixedly connected to the box body 101. Two moving blocks 302 are respectively arranged between the end faces opposite to each other of the two fixed blocks 301. The moving blocks 302 are used as the base to fix the position of the clamping component 4. A threaded hole 303 is opened inside the moving block 302. A bidirectional screw 304 is threadedly connected inside the threaded hole 303. The bidirectional screw 304 is welded by two threaded rods with opposite threads. The bidirectional screw 304 is rotatably connected inside the fixed block 301. One end of the bidirectional screw 304 is connected to a moving motor 305. The output end of the moving motor 305 drives the bidirectional screw 304 to rotate. The rotation of the bidirectional screw 304 drives the two moving blocks 302 to move closer or farther away from each other to adapt to the size of the bidirectional plate 5.

[0029] There are two groups of moving components 3, and the two groups of moving components 3 are arranged crosswise and vertically. The two groups of moving components 3 include four groups of clamping components 4 in total. According to the number of supports and the force conditions of the two-way plate 5, the four groups of clamping components 4 can cooperate with each other to detect the two-way plate 5, and there is a gap between the two-way screws 304 of the two groups of moving components 3. The two-way screws 304 are staggered up and down to avoid mutual interference and collision during movement, thereby ensuring that the two groups of moving components 3 do not affect each other.

[0030] When in use, due to the inconsistent sizes of the two-way plates 5, a group of moving components 3 drives the two-way screw 304 to rotate through the output end of the moving motor 305. The rotation of the two-way screw 304 drives the two moving blocks 302 to move closer to or away from each other, thereby changing the distance between the moving blocks 302. The two groups of moving components 3 are arranged perpendicular to each other, thereby controlling the four moving blocks 302 to work together to fix the two-way plates 5 of different sizes.

[0031] The clamping assembly 4 includes four groups of telescopic cylinders 401, the bottoms of the four groups of telescopic cylinders 401 are respectively fixedly connected to the four corners of the upper end surface of the moving block 302, and the moving block 302 can synchronously drive the clamping assembly 4 to move when it moves. The output end of the telescopic cylinder 401 is connected to the rotating block 415, and the side wall of the rotating block 415 is rotatably connected to the connecting block 416 through a bearing. The top of the connecting block 416 is fixedly connected to the support plate 402. The output end of the telescopic cylinder 401 is controlled to extend or shorten by the same amount, so that the two-way plate 5 can be kept in water. It is placed flat to ensure that the pressure on the two-way plate 5 during loading is perpendicular to the two-way plate 5. An adjusting rod 403 is provided in the middle of the upper end surface of the support plate 402. A movable groove 404 is opened inside the adjusting rod 403. A displacement rod 405 is sealed and slidably connected inside the movable groove 404. A pressure plate 414 is fixedly connected to the displacement rod 405. The displacement rod 405 can move up and down inside the movable groove 404, thereby correspondingly adjusting the distance between the pressure plate 414 and the support plate 402 to complete the clamping and fixation of the two-way plate 5.

[0032] A plurality of electromagnetic plates 406 are provided at the inner bottom of the movable groove 404, and the bottoms of the plurality of electromagnetic plates 406 are fixedly connected to the support plate 402, and a reset spring 407 is provided at the top of the plurality of electromagnetic plates 406, and a magnetic plate 408 is provided at the top of the reset spring 407, wherein the setting of the reset spring 407 can improve the reset effect of the magnetic plate 408, and the magnetic plate 408 is slidably connected to the inner wall of the movable groove 404, and the top of the magnetic plate 408 is fixedly connected to the displacement rod 405, and the relative end surfaces of the electromagnetic plate 406 and the magnetic plate 408 have different magnetic properties. When the electromagnetic plate 406 is energized and the current increases, the mutual magnetic attraction between the electromagnetic plate 406 and the magnetic plate 408 increases, and the magnetic plate 408 compresses the reset spring 407 to move downward, and the magnetic plate 408 correspondingly drives the displacement rod 405 to move downward, and the displacement rod 405 drives the pressure plate 414 to approach the support plate 402.

[0033] The bottom inner side of the adjusting rod 403 near the force-applying member 206 is connected to an elastic frame 409, and a plurality of ventilation holes 410 are evenly arranged on the top of the elastic frame 409. The other side of the bottom inner side of the adjusting rod 403 is connected to a ventilation pipe 411, and the other side of the ventilation pipe 411 is connected to an air pump 412. The air pump 412 is used to control the air pressure inside the movable groove 404 and the elastic frame 409. The other side of the air pump 412 is connected to a connecting pipe 413, and the air pump 412 is connected to the external environment via the connecting pipe 413.

[0034] A bidirectional plate 5 is provided between the opposite end surfaces of the elastic frame 409 and the pressure plate 414 of the multiple groups of clamping components 4. The bidirectional plate 5 can be fixed by utilizing the friction and extrusion force of the elastic frame 409 and the pressure plate 414 on the bidirectional plate 5.

[0035] When working, firstly, the two moving blocks 302 are controlled to move closer or farther from each other according to the size of the two-way plate 5 and the number of force supports, so as to drive the clamping assembly 4 to adapt to the size of the two-way plate 5 and the number of force supports. Specifically, Fig.10 As shown, when the support of the two-way plate 5 is four-sided support, the central control module 102 controls the two groups of moving motors 305 to operate, and the output ends of the two groups of moving motors 305 drive the two-way screws 304 to rotate. The rotation of each group of two-way screws 304 drives the two moving blocks 302 to move closer to or away from each other, thereby driving the clamping assembly 4 to adapt to the size of the two-way plate 5, and the two-way plate 5 falls on the upper end surface of the elastic frame 409 to support the two-way plate 5. At this time, the vent 410 has been completely covered by the two-way plate 5. In this process, the moving block 302 and the elastic frame 409 cooperate with each other to control the movement of the moving block 302 to prompt the elastic frame 409 to support the two-way plate 5, which can meet the detection requirements of two-way plates 5 of different sizes and improve the detection range and detection efficiency.

[0036] Then, the electromagnetic plate 406 is energized and the current gradually increases, the mutual magnetic attraction between the electromagnetic plate 406 and the magnetic plate 408 increases, the magnetic plate 408 compresses the reset spring 407 and moves downward, and the magnetic plate 408 correspondingly drives the displacement rod 405 to move downward, and the displacement rod 405 then drives the pressure plate 414 to approach the support plate 402 until it is close to the upper end surface of the two-way plate 5, completing the clamping and fixing of the two-way plate 5. In this process, the downward movement of the displacement rod 405 will compress the air inside the movable groove 404, and at the same time control the air pump 412 to start the exhaust work. At this time, the air inside the movable groove 404 and the elastic frame 409 is continuously discharged to the external environment through the ventilation pipe 411, the air pump 412 and the connecting pipe 413 in turn, thereby increasing the negative pressure adsorption force of the elastic frame 409 on the two-way plate 5, further improving the clamping and fixing effect on the two-way plate 5.

[0037] Finally, the sliding motor 203 is started to drive the sliding screw 202 to rotate through the output end, thereby driving the sliding block 204 to slide along the length direction of the sliding screw 202, and the output end of the displacement motor 210 is started to drive the displacement screw 209 to rotate. The displacement screw 209 drives the sliding frame 201 to slide in the opposite direction along the length of the displacement screw 209 through the action of the thread. The sliding motor 203 and the displacement motor 210 cooperate with each other to enable the sliding block 204 to move freely in the XY plane. At the same time, the force cylinder 205 controls the force member 206 to move up and down on the Z axis until the force member 206 hits the detection point on the upper end surface of the two-way plate 5, and the pressure sensor is used to detect the two-way plate 5. The stress condition is specifically as follows: the force-applying member 206 is controlled to apply force to the two-way plate 5 at a set rate, and the load is continued to be applied to the maximum load capacity of the two-way plate 5. At this time, the two-way plate 5 reaches the limit load state. During the loading process, the central control module 102 can read the indications detected by the pressure sensor in real time and generate a strength curve. When the strength curve drops drastically, the loading is stopped, and the detection work of the detection point is completed. Subsequently, the force-applying cylinder 205 controls the force-applying member 206 to move upward away from the two-way plate 5, and the sliding motor 203 and the displacement motor 210 are started successively, prompting the force-applying member 206 to move to the next detection point, and the above detection process is repeated to realize multi-point detection of the two-way plate 5.

[0038] When the support mode of the two-way plate 5 is three-sided support, the height of one of the clamping components 4 is adjusted so that the clamping component 4 no longer clamps and fixes the two-way plate 5. At this time, the two-way plate 5 is subjected to the force of three-sided support. Specifically, by controlling the output end of the telescopic cylinder 401 to shorten a certain distance, the pressure plate 414 is driven to move to the bottom of the two-way plate 5. The telescopic cylinder 401 continues to shorten, causing the pressure plate 414 to gradually move away from the lower end surface of the two-way plate 5. At this time, the distance between the pressure plate 414 and the two-way plate 5 is relatively large, which will not affect the normal operation of the test component 2; and when the support mode of the two-way plate 5 is two-sided support, it is necessary to adjust the height of two of the clamping components 4 so that the two clamping components 4 no longer clamp and fix the two-way plate 5. At this time, the two-way plate 5 is subjected to the force of two-sided support. In the above process, by adjusting the number of support points of the two-way plate 5, the strength detection method of the two-way plate 5 under different force conditions can be met, which effectively improves the diversity and detection efficiency of the two-way plate 5.

[0039] Embodiment 2: In the above detection process, the vibration of the detection equipment will interfere with the pressure sensor, causing the measured data to fluctuate and error easily. At the same time, the vibration will cause the detection equipment to shake significantly, affecting the overall stability of the equipment, and further affecting the accuracy of the detection results. In order to solve this problem, the expansion and contraction of the reset spring 407 is used to monitor the vibration of the detection process, and the air pump 412, the electromagnetic plate 406 and the elastic frame 409 and other components are coordinated to achieve the adaptive adjustment function of vibration reduction under different vibration conditions during the detection of the two-way plate 5 by the clamping assembly 4, so as to ensure the stability of the detection results of the detection equipment, specifically: First, place the two-way plate 5 on the upper end surface of the elastic frame 409 to support the two-way plate 5. At this time, the air vent 410 has been completely covered by the two-way plate 5. The electromagnetic plate 406 is controlled to be energized and the current is gradually increased until the pressure plate 414 is close to the upper end surface of the two-way plate 5. At the same time, the air pump 412 is started to discharge the air inside the movable groove 404 and the elastic frame 409 to the external environment, completing the clamping and fixing of the two-way plate 5. At this time, the vibration of the equipment is mainly transmitted to the elastic frame 409 and the pressure plate 414 through the two-way plate 5, and further transmitted to other parts and other components of the clamping assembly 4.

[0040] Then, the force-applying member 206 is controlled to contact the detection point on the upper end surface of the two-way plate 5 to start detection. The force-applying member 206 will cause the detection equipment to vibrate during the loading process. As the load applied by the force-applying member 206 gradually increases, the vibration of the detection equipment also increases. The vibration is transmitted through the two-way plate 5, the pressure plate 414, the displacement rod 405 and the magnetic plate 408, thereby generating a periodic external force acting on the reset spring 407, causing the reset spring 407 to undergo periodic deformation. Therefore, the vibration intensity of the equipment can be monitored by the deformation degree and deformation frequency of the reset spring 407. It is worth noting that the deformation of all the reset springs 407 in the same clamping assembly 4 remains consistent, and it is only necessary to monitor the deformation of one of the reset springs 407 to monitor the vibration intensity of the equipment.

[0041] Then, the air pump 412 is used to increase the air pressure inside the movable groove 404 and the elastic frame 409 to adjust the vibration damping softness and hardness of the clamping assembly 4, so that the clamping assembly 4 can adaptively slow down vibrations of different intensities. When the two-way plate 5 reaches the limit load, the pressure of the air inside the movable groove 404 and the elastic frame 409 to resist the vibration under the load is set to the rated maximum air pressure. In the early and middle stages of the loading of the force member 206, the load applied by the force member 206 is small, and the reset spring 407 detects that the vibration intensity of the equipment is small. The air pump 412 is started and high-pressure gas is introduced into the movable groove 404 and the elastic frame 409 along the ventilation pipe 411. At this time, the air pressure inside the movable groove 404 and the elastic frame 409 gradually increases to 50% of the rated maximum air pressure, so that the clamping assembly 4 has a soft vibration damping function. Since the internal volume of the movable groove 404 will increase due to the action of the high-pressure gas, and the vibration of the equipment will also cause the clamping of the pressure plate 414 to loosen, thereby reducing the squeezing force of the pressure plate 414 on the two-way plate 5. Therefore, the current of the electromagnetic plate 406 is controlled to increase, and the magnetic attraction of the magnetic plate 408 to the electromagnetic plate 406 is further increased. On the one hand, the squeezing force of the pressure plate 414 on the two-way plate 5 is increased to prevent the two-way plate 5 from moving out of position during the detection process. On the other hand, the adjusting rod 403 is prompted to compress the movable groove 404, reduce the gas volume inside the movable groove 404, and increase the internal air pressure of the movable groove 404 and the elastic frame 409. During the above process, when the reset spring 407 detects that the vibration intensity of the equipment is relatively small, the vibration will be transmitted to the movable groove 404 and the high-pressure air inside the elastic frame 409 through the two-way plate 5, the elastic frame 409, the pressure plate 414, and the displacement rod 405. The internal high-pressure air is compressed, thereby generating an elastic force in the opposite direction to the external force. This elastic force will resist external vibrations and effectively absorb the tiny vibrations of the two-way plate 5 in the early and middle stages of loading, thereby preventing these small vibrations from interfering with the detection results.

[0042] Finally, in the middle and late stages of the loading of the force-applying member 206, the load applied by the force-applying member 206 is relatively large, and the reset spring 407 detects that the vibration intensity of the equipment is relatively large. At this time, the clamping assembly 4 should not only play a vibration reduction role, but also have sufficient bearing capacity to prevent the two-way plate 5 from affecting the detection result due to excessive sinking or instability. The high-pressure gas is continued to be introduced into the movable groove 404 and the elastic frame 409 through the air pump 412. At this time, the air pressure inside the movable groove 404 and the elastic frame 409 gradually increases to the rated maximum air pressure, so that the clamping assembly 4 has a hard vibration reduction function. At the same time, the current of the electromagnetic plate 406 is further increased, which not only ensures the squeezing and fixing effect of the pressure plate 414 on the two-way plate 5, but also compresses the gas volume inside the movable groove 404, and increases the air pressure inside the movable groove 404 and the elastic frame 409. At this time, the rigidity of the gas inside the movable groove 404 and the elastic frame 409 is relatively large, which can provide more stable support. When the gas is subjected to large vibration, its deformation is relatively small, which reduces the generation of vibration.

[0043] The expansion and contraction of the reset spring 407 is used to monitor the vibration of the two-way plate 5 during the detection process. When the reset spring 407 detects that the vibration intensity of the equipment is relatively small, the air pump 412, the electromagnetic plate 406, the elastic frame 409 and other components cooperate with each other, and the air pump 412 passes high-pressure gas into the movable groove 404 and the elastic frame 409, and increases the current of the electromagnetic plate 406 to compress the gas volume inside the movable groove 404, so that the internal air pressure of the movable groove 404 and the elastic frame 409 gradually increases to 50% of the rated maximum air pressure, so that the clamping component 4 has a soft vibration reduction function, which can effectively absorb the vibration of the equipment. The reset spring 407 detects that the vibration intensity of the equipment is relatively large, and the air pump 412, the electromagnetic plate 406, the elastic frame 409 and other components cooperate with each other. The air pump 412 continues to introduce high-pressure gas into the movable groove 404 and the elastic frame 409, and the current of the electromagnetic plate 406 is increased to compress the gas volume inside the movable groove 404. The internal air pressure of the movable groove 404 and the elastic frame 409 increases to the rated maximum air pressure, which enables the clamping assembly 4 to have a hard vibration reduction function and sufficient load-bearing capacity, so as to provide more stable support and reduce the generation of vibration.

[0044] Embodiment three: The present invention also provides a reinforced concrete two-way slab strength detection method, the specific steps are as follows: Step 1: According to the size of the two-way plate 5 and the number of force-bearing supports, the moving assembly 3 is controlled to move so that the elastic frame 409 supports the two-way plate 5. Then, the electromagnetic plate 406 is controlled to be energized and the current is gradually increased until it is close to the upper end surface of the two-way plate 5, thereby completing the clamping and fixing of the two-way plate 5. The air pump 412 is controlled to start the air extraction work. At this time, the air inside the movable groove 404 and the elastic frame 409 is continuously discharged into the external environment, thereby increasing the negative pressure adsorption force of the elastic frame 409 on the two-way plate 5; Step 2: Control the force applying member 206 to move to the detection point, and apply force to squeeze the bidirectional plate 5 at a set rate. During the loading process, the central control module 102 reads the reading detected by the pressure sensor in real time; Step 3: Use the expansion and contraction of the reset spring 407 to monitor the vibration of the two-way plate 5 during the detection process. When the reset spring 407 detects that the vibration intensity of the equipment is relatively small, the air pump 412 introduces high-pressure gas into the movable groove 404 and the elastic frame 409, and increases the current of the electromagnetic plate 406 to compress the gas volume inside the movable groove 404, so that the internal air pressure of the movable groove 404 and the elastic frame 409 gradually increases to 50% of the rated maximum air pressure. When the reset spring 407 detects that the vibration intensity of the equipment is relatively large, the air pump 412 continues to introduce high-pressure gas into the movable groove 404 and the elastic frame 409, and increases the current of the electromagnetic plate 406 to compress the internal air volume of the movable groove 404. At this time, the internal air pressure of the movable groove 404 and the elastic frame 409 increases to the rated maximum air pressure. Step 4: After completing the inspection of the inspection point, the force cylinder 205 controls the force member 206 to move upward away from the two-way plate 5, and the sliding motor 203 and the displacement motor 210 are started successively, prompting the force member 206 to move to the next inspection point.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reinforced concrete bidirectional slab strength testing device, comprising a carrier assembly (1), characterized in that: A test component (2) is provided on the carrier component (1), a moving component (3) is provided inside the carrier component (1), a clamping component (4) is provided on the moving component (3), and a bidirectional plate (5) is provided inside the clamping component (4); The carrier assembly (1) comprises a box (101), a central control module (102) is provided on one side of the box (101), and a frame (103) is fixedly connected to the upper end surface of the box (101); The test assembly (2) comprises a sliding frame (201), the bottom of the sliding frame (201) is slidably connected to the frame (103), a sliding screw (202) is rotatably connected inside the sliding frame (201), one end of the sliding screw (202) is connected to a sliding motor (203), a sliding block (204) is threadedly connected to the sliding screw (202), a force-applying cylinder (205) is fixedly connected to the bottom of the sliding block (204), a force-applying member (206) is fixedly connected to the output end of the force-applying cylinder (205), and a pressure sensor is provided on the force-applying member (206).

2. The reinforced concrete two-way slab strength testing equipment according to claim 1 is characterized by: The moving assembly (3) comprises two fixed blocks (301), the bottoms of the two fixed blocks (301) are fixedly connected to the box body (101), two moving blocks (302) are arranged between the opposite end surfaces of the two fixed blocks (301), a threaded hole (303) is provided inside the moving block (302), a bidirectional screw rod (304) is threadedly connected inside the threaded hole (303), the bidirectional screw rod (304) is rotatably connected inside the fixed block (301), and one end of the bidirectional screw rod (304) is connected to a moving motor (305).

3. The reinforced concrete two-way slab strength testing equipment according to claim 1 is characterized in that: The test assembly (2) further comprises two limit blocks (207), the two limit blocks (207) being respectively arranged on both sides of the frame (103), and the bottom of the limit blocks (207) being fixedly connected to the frame (103); a sliding hole (208) is opened on one side of the sliding frame (201), a displacement screw (209) is threadedly connected inside the sliding hole (208), the displacement screw (209) is rotatably connected inside the two limit blocks (207), and one end of the displacement screw (209) is connected to a displacement motor (210).

4. The reinforced concrete two-way slab strength testing device according to claim 2 is characterized in that: The moving components (3) are provided with two groups, the two groups of the moving components (3) are arranged crosswise and vertically, and there is a gap between the bidirectional screws (304) of the two groups of the moving components (3).

5. The reinforced concrete two-way slab strength testing equipment according to claim 2 is characterized by: The clamping assembly (4) comprises four groups of telescopic cylinders (401), the bottoms of the four groups of telescopic cylinders (401) are respectively fixedly connected to the four corners of the upper end surface of the moving block (302), the output ends of the telescopic cylinders (401) are connected to the rotating block (415), the side wall of the rotating block (415) is rotatably connected to the connecting block (416) via a bearing, the top of the connecting block (416) is fixedly connected to the support plate (402), an adjusting rod (403) is provided in the middle of the upper end surface of the support plate (402), a movable groove (404) is provided inside the adjusting rod (403), a displacement rod (405) is sealingly and slidably connected inside the movable groove (404), and a pressing plate (414) is fixedly connected to the displacement rod (405).

6. The reinforced concrete two-way slab strength testing device according to claim 5 is characterized by: The inner bottom of the movable groove (404) is linearly and evenly provided with a plurality of electromagnetic plates (406); the bottoms of the plurality of electromagnetic plates (406) are fixedly connected to the support plate (402); the tops of the plurality of electromagnetic plates (406) are provided with a return spring (407); the tops of the return springs (407) are provided with a magnetic plate (408); the magnetic plate (408) is slidably connected to the inner wall of the movable groove (404); the top of the magnetic plate (408) is fixedly connected to the displacement rod (405); and the relative end faces of the electromagnetic plate (406) and the magnetic plate (408) have different magnetic properties.

7. The reinforced concrete two-way slab strength testing device according to claim 5 is characterized by: The bottom of the adjusting rod (403) is connected to an elastic frame (409) on one side close to the force-applying member (206), and a plurality of ventilation holes (410) are evenly arranged on the top of the elastic frame (409). The other side of the bottom of the adjusting rod (403) is connected to a ventilation pipe (411), and the other side of the ventilation pipe (411) is connected to an air pump (412), and the other side of the air pump (412) is connected to a connecting pipe (413).

8. The reinforced concrete two-way slab strength testing device according to claim 7 is characterized by: A bidirectional plate (5) is provided between the opposite end surfaces of the elastic frames (409) and the pressure plates (414) of the plurality of groups of the clamping assemblies (4).

9. A reinforced concrete two-way slab strength testing method, using a reinforced concrete two-way slab strength testing device as claimed in any one of claims 1 to 8, characterized in that: The detection method comprises the following steps: Step 1: According to the size of the bidirectional plate (5) and the number of force-bearing supports, the moving assembly (3) is controlled to move so as to cause the elastic frame (409) to support the bidirectional plate (5); then, the electromagnetic plate (406) is controlled to be energized and the current is gradually increased until it is closely attached to the upper end surface of the bidirectional plate (5), thereby completing the clamping and fixing of the bidirectional plate (5); and the air pump (412) is controlled to start the air extraction operation, at which time, the air inside the movable groove (404) and the elastic frame (409) is continuously discharged into the external environment, thereby increasing the negative pressure adsorption force of the elastic frame (409) on the bidirectional plate (5); Step 2: Control the force-applying member (206) to move to the detection point, and apply force to the bidirectional plate (5) at a set rate, and during the loading process, the central control module (102) reads the reading detected by the pressure sensor in real time; Step 3: The vibration of the two-way plate (5) during the detection process is monitored by using the expansion and contraction of the return spring (407). When the return spring (407) detects that the vibration intensity of the device is relatively low, the air pump (412) introduces high-pressure gas into the movable groove (404) and the elastic frame (409), and increases the current of the electromagnetic plate (406) to compress the gas volume inside the movable groove (404), so that the gas pressure inside the movable groove (404) and the elastic frame (409) gradually increases to 50% of the rated maximum gas pressure. When the return spring (407) detects that the vibration intensity of the device is relatively high, the air pump (412) continues to introduce high-pressure gas into the movable groove (404) and the elastic frame (409), and increases the current of the electromagnetic plate (406) to compress the gas volume inside the movable groove (404), so that the gas pressure inside the movable groove (404) and the elastic frame (409) increases to the rated maximum gas pressure. Step 4: After the inspection of the inspection point is completed, the force cylinder (205) controls the force member (206) to move upward away from the two-way plate (5), and the sliding motor (203) and the displacement motor (210) are started successively, prompting the force member (206) to move to the next inspection point.

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