Method for testing the compressive strength of a building steel-concrete structure

Abstract

The present invention discloses a testing method for the compressive strength of a solid body based on a steel-concrete structure of a building, which specifically includes the following steps: step 1, placing a prefabricated panel to be tested into a box, supporting and conveying it by means of sliding rollers, and then, electromagnets on both sides act on the magnetic repulsion force with the magnetic plates, so that the magnetic plates drive a cone to move up and down through a sliding sleeve and a telescopic rod, so that the cone and the circular hole of the prefabricated panel are coaxial, and then the output end of the telescopic rod is extended, so that the cone enters the circular hole to clamp the prefabricated panel; the invention relates to the technical field of compressive strength testing of steel-concrete structures, and solves the problem that when an existing reinforced concrete prefabricated component compressive strength testing device is used, the test range is limited because only compressive strength testing can be performed, and the longitudinal position of the clamping block used for fixing is fixed, so that only a single specification of prefabricated panels can be tested, thereby limiting the test specification range.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel-concrete structure compression resistance testing, in particular to a method for testing the physical compression resistance of a steel-concrete structure. BACKGROUND

[0002] A prefabricated concrete component is a building component made in a factory using concrete and steel reinforcement as basic materials. In the existing compression resistance detection process, there are the following problems. On the one hand, it needs to be fixed manually, which is time-consuming and laborious to disassemble, resulting in low efficiency. On the other hand, there is a problem of damage due to poor fixation. In the invention patent with the application number CN201910422388.7, a surface compression resistance testing device for a prefabricated reinforced concrete structure is disclosed, which includes a testing frame. The device solves the problem of the need for manual fixation of the prefabricated floor component during testing, avoids damage to the prefabricated component due to poor fixation during compression resistance testing, and thus affects the compression resistance of the prefabricated floor component made of reinforced concrete. The device also has complex fixation and disassembly operations, consumes a lot of time, and affects the testing efficiency.

[0003] Although the device has the above advantages, it still has the following defects in actual use:

[0004] 1) The device can test the compression resistance of the prefabricated floor, but only compression resistance testing can be performed, resulting in a small actual test range;

[0005] 2) The conical abutting block of the device is fixed in the longitudinal position, so it can only fix a single size of prefabricated board, thus limiting the range of actual test sizes.

[0006] Therefore, the above-mentioned problems of the device need to be solved. SUMMARY

[0007] In view of the deficiencies of the prior art, the present application provides a method for testing the physical compression resistance of a steel-concrete structure, which solves the problem of limited test range due to only compression resistance testing, and the problem of limited test size range due to the fixed longitudinal position of the abutting block used for fixation, which is only suitable for testing a single size of prefabricated board.

[0008] To achieve the above purpose, the present application is implemented by the following technical solution: a method for testing the physical compression resistance of a steel-concrete structure, specifically including the following steps:

[0009] Step one, the preform plate to be tested is placed inside the box, supported and conveyed by the sliding roller, and then the electromagnet on both sides repels the magnetic force of the magnetic plate, so that the magnetic plate drives the cone to rise and fall through the sliding sleeve and telescopic rod, so that the cone and the round hole of the preform plate are coaxial, then the output end of the telescopic rod is stretched out, so that the cone enters the round hole to clamp the preform plate;

[0010] Step two, the output end of the lifting rod is stretched out to drive the roller to descend and contact the preform plate to press it, then the linear motor slides along the slide rail, drives the roller to reciprocate on the preform plate through the lifting rod and the push frame, and performs compression test;

[0011] Step three, during the rolling process of the roller, the rotating roller drives the worm to rotate through contact, and drives the driving rod to rotate through the worm gear, and at the same time, through the meshing of the transmission gear and the rotating gear, the ball screw drives the resistance bar to reciprocate with the roller through the sliding cylinder, so that the roller vibrates to perform vibration resistance test.

[0012] Preferably, it comprises:

[0013] The box for providing a detection space;

[0014] The compression and vibration mechanism is arranged inside the box, and the compression and vibration mechanism comprises a roller, the body of the roller is movably connected with a push frame, the outer surface of the push frame is fixedly connected with two clamping plates, the outer surfaces of the two clamping plates are movably connected with the outer surface of the roller, the body of the push frame is rotatably connected with a ball screw, the outer part of the ball screw is sleeved with a sliding cylinder, the inner part of the sliding cylinder is fixedly connected with the sliding end of the ball screw, the outer surface of the sliding cylinder is fixedly connected with a resistance bar, and the outer surface of the resistance bar is movably connected with the inner part of the roller.

[0015] The drive assembly is arranged inside the roller, and the drive assembly obtains power through contact with the inner part of the roller to drive the ball screw to rotate;

[0016] The damping assembly is arranged at the connection between the roller and the push frame, and is used for buffering the vibration generated by the resistance bar;

[0017] The adjustment assembly is arranged inside the box, and is used for clamping the preform plate according to the size of the preform plate.

[0018] Preferably, the outer part of the roller is provided with two groups of slide rails, the outer surfaces of the two slide rails are fixedly connected with the inner part of the box, the outer surfaces of the two slide rails are movably connected with linear motors, the outer surfaces of the two groups of linear motors are fixedly connected with lifting rods, and the output ends of the two groups of lifting rods are fixedly connected with the two ends of the push frame.

[0019] Preferably, the driving assembly comprises a worm, the outer surface of the worm is rotatably connected with the inner part of the roller, the outer surface of the worm penetrates and is fixedly connected with a fixed plate, the outer surface of the fixed plate is fixedly connected with the outer surface of the push frame, the outer surface of the worm penetrates and is fixedly connected with a rotating roller, the outer surface of the rotating roller is movably connected with the inner part of the roller, the outer surface of the worm is engaged with a worm gear, the outer surface of the worm gear is fixedly connected with a driving rod, and the outer surface of the driving rod penetrates and is rotatably connected with the body of the push frame.

[0020] Preferably, the outer part of the driving rod is provided with a transmission unit, the transmission unit comprises a transmission rod, the outer surface of the transmission rod penetrates and is fixedly connected with two ratchets, the outer surfaces of the two ratchets both penetrate and are fixedly connected with transmission gears, the outer part of the transmission rod is provided with a rotating gear, the outer surface of the rotating gear is fixedly connected with the screw rod of the ball screw, and the outer surfaces of the rotating gear are respectively engaged with the outer surfaces of the two transmission gears.

[0021] Preferably, the outer surface of the transmission rod penetrates and is rotatably connected with a support plate, the outer surface of the support plate is fixedly connected with the outer surface of the push frame, one end of the transmission rod is fixedly connected with a connecting gear, the outer surface of the connecting gear is engaged with a driving gear, and the body of the driving gear penetrates and is fixedly connected with the outer surface of the driving rod.

[0022] Preferably, the damping assembly comprises two through grooves, the two through grooves are respectively arranged on the two sides of the roller body and are in a through state, the inner part of the through groove is movably connected with a sleeve, the inner part of the sleeve is movably connected with the outer surface of the push frame, the outer surface of the sleeve is fixedly connected with the outer surface of the clamping plate, and the outer surface of the sleeve is fixedly connected with a spring rod.

[0023] Preferably, the inner part of the through groove is fixedly connected with a fixed ring, the ring hole of the fixed ring is provided with a clamping groove, the inner part of the clamping groove is rotatably connected with a clamping ring, and the ring hole of the clamping ring is fixedly connected with the output end of the spring rod.

[0024] Preferably, the adjusting assembly comprises a fixed frame, the outer surface of the fixed frame is fixedly connected with the inner part of the box body, the outer surface of the fixed frame is slidably connected with a sliding sleeve, the outer surface of the sliding sleeve is fixedly connected with a telescopic rod, and the output end of the telescopic rod is fixedly connected with a cone.

[0025] Preferably, the outer surface of the sliding sleeve is fixedly connected with a magnetic plate, the outer surface of the magnetic plate is movably connected with the inner part of the box body, the outer surface of the magnetic plate is movably connected with electromagnets on the two sides through magnetic repulsive force, and the outer surfaces of the electromagnets on the two sides are respectively fixedly connected with the outer surfaces of the two sides of the fixed frame.

[0026] Advantages

[0027] The application provides a testing method based on the compressive strength of a building steel-concrete structure.

[0028] (1) By setting the pressure and vibration mechanism, the surface of the prefabricated plate can be tested gradually by the rolling and pressing of the roller, and the resistance bar can move synchronously with the roller to test the vibration resistance of the prefabricated plate synchronously, thereby improving the diversity of the testing method of the device.

[0029] (2) By setting the driving assembly, the roller and the inner wall of the roller are in frictional contact, and the roller rotates synchronously when the roller rolls, and the transmission is achieved through the meshing of the worm gear and the worm, so that the ball screw rotates to drive the resistance bar to move synchronously, and the roller vibrates to test the vibration resistance of the prefabricated plate.

[0030] (3) By setting the transmission unit, the transmission rod utilizes two oppositely arranged ratchets, and the two transmission gears drive a single rotating gear together, so that the ball screw is always driven in a single direction regardless of the forward or reverse rotation of the roller, thereby improving the stability of the resistance bar movement.

[0031] (4) By setting the damping assembly, the roller and the push frame are connected in a radial direction through the connection of the spring rod, the snap ring and the fixed ring, and the vibration of the roller is buffered through the elastic force, thereby reducing the force acting on the push frame, so as to avoid damage to the lifting rod and the linear motor.

[0032] (5) By setting the adjusting assembly, the magnetic repulsion between the magnetic plate and the two electromagnets allows the magnetic plate to move up and down by driving the cone through the sleeve, so as to adapt to different specifications of the prefabricated plate, and the sleeve and the fixed frame are connected in the center, so as to realize self-buffering through the up-down movement and magnetic damping effect when subjected to longitudinal pressure and vibration, thereby avoiding damage caused by stress. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is the internal structure perspective view of the application;

[0034] Figure 2 It is the internal structure perspective view of the roller of the application;

[0035] Figure 3 It is the external structure perspective view of the worm gear of the application;

[0036] Figure 4 It is the external structure perspective view of the ratchet of the application;

[0037] Figure 5 It is the external structure perspective view of the sleeve of the application;

[0038] Figure 6 It is the external structure perspective view of the fixed frame of the application.

[0039] In the figure: 1, box; 2, roller; 3, drive assembly; 31, worm; 32, fixed plate; 33, rotating roller; 34, worm gear; 35, drive rod; 36, transmission unit; 361, transmission rod; 362, ratchet; 363, transmission gear; 364, rotating gear; 365, support plate; 366, connecting gear; 367, drive gear; 4, push frame; 5, damping assembly; 51, through slot; 52, sleeve; 53, spring rod; 54, fixed ring; 55, clamping groove; 56, clamping ring; 6, adjusting assembly; 61, fixed frame; 62, sliding sleeve; 63, telescopic rod; 64, cone; 65, magnetic plate; 66, electromagnet; 7, ball screw; 8, sliding cylinder; 9, resistance bar; 10, sliding rail; 11, linear motor; 12, lifting rod; 13, clamping plate. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0041] Please refer to Figures 1-6 The present application provides a technical solution: a testing method based on the compressive strength of a building steel-concrete structure: specifically comprising the following steps:

[0042] Step one, place the prefabricated plate to be tested into the box 1, support and transport it through the sliding roller, then the two side electromagnets 66 repel the magnetic plate 65 through the magnetic force, so that the magnetic plate 65 drives the cone 64 to rise and fall through the sliding sleeve 62 and the telescopic rod 63, so that the cone 64 and the round hole of the prefabricated plate are coaxial, then the output end of the telescopic rod 63 is extended, so that the cone 64 enters the round hole to clamp the prefabricated plate;

[0043] Step two, the output end of the lifting rod 12 is extended so that the push frame 4 drives the roller 2 to descend and contact the prefabricated plate to apply pressure, then the linear motor 11 slides along the sliding rail 10, pushes the roller 2 to reciprocally roll on the prefabricated plate through the lifting rod 12 and the push frame 4, and performs compression test;

[0044] Step three, during the rolling process of the roller 2, the rotating roller 33 drives the worm 31 to rotate through contact, and drives the drive rod 35 to rotate through the worm gear 34, at the same time, the ball screw 7 drives the resistance bar 9 to reciprocally contact the roller 2 through the sliding cylinder 8 through the meshing of the transmission gear 363 and the rotating gear 364, so that the roller 2 vibrates to perform vibration test

[0045] Example 1: Refer to the attached manual Figure 1 , Attachment Figure 2 ;

[0046] It includes a box body 1, and the existing sliding roller is provided inside the box body 1 for conveying and carrying prefabricated panels. The box body 1 is provided with a pressure vibration mechanism, which includes a roller 2. The roller 2 is made of a pressure-resistant and wear-resistant material and is hollow inside. The outer surface of the roller 2 is movably connected to the inside of the box body 1, and the body of the roller 2 is movably connected to a push rack 4. The outer surface of the push rack 4 is fixedly connected to two splints 13. The splints 13 can clamp the roller 2 to improve its axial stability. The outer surfaces of the two splints 13 are movably connected to the outer surface of the roller 2. The body of the push rack 4 is rotatably connected to a ball screw 7. The outer sleeve of the ball screw 7 is provided with a slide cylinder 8. The slide cylinder 8 The outer surface of the roller 2 is fixedly connected with a resistance bar 9, which is made of pressure-resistant and wear-resistant materials. The roller 2 is vibrated by colliding with the resistance bar 9. The outer surface of the resistance bar 9 is movably connected to the inside of the roller 2. Two groups of slide rails 10 are provided on the outside of the roller 2. The outer surfaces of the two slide rails 10 are fixedly connected to the inside of the box body 1. The outer surfaces of the two slide rails 10 are slidably connected with linear motors 11. The linear motors 11 are electrically connected to the external control circuit. The outer surfaces of the two groups of linear motors 11 are fixedly connected with lifting rods 12. The lifting rods 12 are made of existing electric push rods and are electrically connected to the external control circuit. The output ends of the two groups of lifting rods 12 are respectively fixedly connected to the two ends of the push frame 4.

[0047] In this embodiment, the prefabricated board is placed inside the box 1 and is carried and transported by sliding rollers. When the prefabricated board stops inside the box 1, the output end of the lifting rod 12 extends out, and drives the roller 2 to descend through the push frame 4 and make it contact with the prefabricated board to apply pressure to the prefabricated board. Then the linear motor 11 slides through the push frame 4 to push the roller 2 to roll, so as to realize a gradual pressure resistance test on the surface of the prefabricated board. During the movement of the roller 2, the ball screw 7 continues to rotate, and through the fixed connection between the sliding end and the slide 8, the slide 8 drives the bar 9 to reciprocate inside the roller 2, and continuously contacts the roller 2 through the bar 9, so that the roller 2 vibrates to perform a vibration resistance test on the prefabricated board.

[0048] Example 2: Based on Example 1, refer to the attached Figure 2 , Attachment Figure 3 ;

[0049] The outer surface of the worm 31 is connected to the inner rotation of the drum 2, and the outer surface of the worm 31 is connected to the inner rotation of the drum 2. The outer surface of the worm 31 is connected to the fixed plate 32 through which the worm 31 is connected. The connection between the fixed plate 32 and the worm 31 is provided with an axial limiting measure. The outer surface of the fixed plate 32 is fixedly connected to the outer surface of the push frame 4, and the outer surface of the worm 31 is fixedly connected to the roller 33 through which the roller 33 rotates synchronously with the drum 2 through friction contact with the inner wall of the drum 2. The outer surface of the roller 33 is movably connected to the inner surface of the drum 2, and the outer surface of the worm 31 is meshed with a worm gear 34. The connection between the worm gear 34 and the worm 31 can not only transmit data, but also improve the stability of the resisting bar 9 through the self-locking function. The outer surface of the worm gear 34 is fixedly connected to the driving rod 35. The outer surface of the driving rod 35 is connected to the main body of the push frame 4 through which the driving rod 35 is connected to the push frame 4. An axial limiting measure is provided for the connection.

[0050] In this embodiment, when the drum 2 rolls, the friction force drives the roller 33 to rotate synchronously, so that the worm 31 follows the rotation, and through the engagement of the worm 31 and the worm wheel 34, the drive rod 35 follows the rotation to provide driving force for the rotation of the ball screw 7.

[0051] Example 3: Based on Example 2, refer to the attached Figure 2 , Attachment Figure 4 ;

[0052] The outside of the driving rod 35 is provided with a transmission unit 36, which includes a transmission rod 361. The outer surface of the transmission rod 361 is fixedly connected to two ratchets 362. The two ratchets 362 are arranged in opposite directions of rotation to ensure that no matter whether the drum 2 is rotated forward or reverse, the transmission rod 361 provides a driving force in the same direction, so that the rotation direction of the ball screw 7 is always consistent. The outer surfaces of the two ratchets 362 are fixedly connected to a transmission gear 363. The outside of the transmission rod 361 is provided with a rotating gear 364. The rotating gear 364 and the transmission gear 363 are both made of bevel gears. The outer surface of the rotating gear 364 is opposite to the outer surface of the rotating gear 364. The screw rod of the ball screw 7 is fixedly connected, the outer surface of the rotating gear 364 is respectively meshed with the outer surfaces of the two transmission gears 363, the outer surface of the transmission rod 361 is penetrated and rotatably connected with a support plate 365, and the connection between the support plate 365 and the transmission rod 361 is provided with an axial limiting measure. The outer surface of the support plate 365 is fixedly connected to the outer surface of the push frame 4, and one end of the transmission rod 361 is fixedly connected with a connecting gear 366. The outer surface of the connecting gear 366 is meshed with a driving gear 367. The driving gear 367 and the connecting gear 366 are both made of bevel gears, and the body of the driving gear 367 is penetrated and fixedly connected with the outer surface of the driving rod 35.

[0053] In this embodiment, when the driving rod 35 rotates, the transmission rod 361 follows the rotation through the engagement of the connecting gear 366 and the driving gear 367, and the ball screw 7 follows the synchronous rotation through the transmission gear 363 and the rotating gear 364. At the same time, when the driving rod 35 rotates forward, the transmission is carried out through the action of the ratchet 362 on one side, and the ratchet 362 on the other side is in reverse slip. Conversely, when the driving rod 35 reverses, the driving force is provided by the ratchet 362 on the other side for transmission, so as to realize the unidirectional drive of the ball screw 7 at all times.

[0054] Example 4: Based on Example 3, refer to the attached Figure 1 , Attachment Figure 5 ;

[0055] A vibration damping assembly 5 is provided on the outside of the push frame 4. The vibration damping assembly 5 includes two through grooves 51. The inner diameter of the through groove 51 is larger than the outer diameter of the push frame 4. By increasing the contact difference, vibration is buffered. The two through grooves 51 are respectively opened on both sides of the drum 2 body and are in a through state. The interior of the through groove 51 is movably connected with a sleeve 52. The inner diameter of the sleeve 52 is the same as the outer diameter of the push frame 4 to improve the stability of the support. The interior of the sleeve 52 is movably connected to the outer surface of the push frame 4, and the outer surface of the sleeve 52 is fixedly connected to the outer surface of the splint 13. The outer surface of the sleeve 52 is fixedly connected There is a spring rod 53, and there are multiple spring rods 53 arranged at equal angles to improve the buffer range and balance. At the same time, the elastic force of the spring rod 53 is greater than the test pressure. The interior of the through groove 51 is fixedly connected with a fixed ring 54, and the ring hole of the fixed ring 54 is provided with a clamping groove 55. The interior of the clamping groove 55 is rotatably connected with a clamping ring 56. The cross-section of the clamping ring 56 is T-shaped to improve the stability of the connection. The ring hole of the clamping ring 56 is fixedly connected to the output end of the spring rod 53 to improve the stability of the connection. As a preferred method, the output end of the spring rod 53 is connected to the clamping ring 56 through a universal joint to facilitate the change of the connection angle after the drum 2 moves.

[0056] In this embodiment, when the roller 2 is vibrated by the impact of the resistance bar 9, due to the elastic expansion and contraction of the output end of the spring rod 53, the elastic force is used as a damping effect, thereby buffering the vibration of the roller 2 through the spring rod 53, preventing the push frame 4 from being subjected to large vibrations, which would cause damage to the lifting rod 12 and the linear motor 11.

[0057] Example 5: Based on Example 4, refer to the attached Figure 1 , Attachment Figure 6 ;

[0058] The outer part of the roller 2 is provided with an adjusting assembly 6, the adjusting assembly 6 comprises a fixed frame 61, the outer surface of the fixed frame 61 is fixedly connected with the inner part of the box 1, the outer surface of the fixed frame 61 is slidably connected with a sliding sleeve 62, the sliding sleeve 62 and the fixed frame 61 are both rectangular in cross section, so as to improve the radial stability of the connection between the two, so that the cone 64 is always front to the side of the precast slab, the outer surface of the sliding sleeve 62 is fixedly connected with an extension rod 63, the extension rod 63 is made of an existing electric push rod, and is electrically connected with an external control circuit, the output end of the extension rod 63 is fixedly connected with the cone 64, the cone 64 is in contact with the round hole of the precast slab to clamp it, and the left and right two conical bodies 64 are a group to correspond to the two sides of the same round hole, and a plurality of groups are arranged in the box 1, the outer surface of the sliding sleeve 62 is fixedly connected with a magnetic plate 65, the magnetic plate 65 is made of a permanent magnet, the outer surface of the magnetic plate 65 is movably connected with the inner part of the box 1, the outer surface of the magnetic plate 65 is movably connected with an electromagnet 66 through magnetic repulsion on both sides, the electromagnet 66 is electrically connected with the external control circuit, and the magnetic poles of the magnetic forces provided by the two are different, and the outer surfaces of the two electromagnets 66 are fixedly connected with the outer surfaces of the two sides of the fixed frame 61 respectively.

[0059] In the embodiment, when the precast slab moves to the inner part of the box 1, the axis of the round hole is in the same vertical plane as the axis of the cone 64, then the magnetic force of the two electromagnets 66 is adjusted to drive the magnetic plate 65 to adjust the position between the two, so that the cone 64 is driven to move up and down through the sliding sleeve 62 and the extension rod 63, so that the cone 64 and the round hole are coaxial, then the output end of the extension rod 63 is extended to drive the cone 64 into the inner part of the round hole, so as to clamp the precast slab.

[0060] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by those skilled in the art.

[0061] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and deformations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. The test method for the compressive strength of steel-concrete structures is characterized by: The specific steps include: Step 1: Place the prefabricated panel to be tested into the box (1), support and transport it through the sliding roller, and then the electromagnets (66) on both sides act through the magnetic repulsion force with the magnetic plate (65), so that the magnetic plate (65) drives the cone (64) to move up and down through the sliding sleeve (62) and the telescopic rod (63), so that the cone (64) and the circular hole of the prefabricated panel are coaxial, and then the output end of the telescopic rod (63) is extended, so that the cone (64) enters the circular hole to clamp the prefabricated panel; Step 2: The output end of the lifting rod (12) is extended so that the push frame (4) drives the roller (2) to descend and contact the prefabricated plate to apply pressure thereto. Then, the linear motor (11) slides along the slide rail (10), and the lifting rod (12) and the push frame (4) push the roller (2) to roll back and forth on the prefabricated plate to perform a compression test. Step 3: During the rolling process of the drum (2), the roller (33) drives the worm (31) to rotate by contacting it, and drives the driving rod (35) to rotate through the worm gear (34). At the same time, through the engagement of the transmission gear (363) and the rotating gear (364), the ball screw (7) drives the bar (9) to reciprocate with the drum (2) through the slide (8), so that the drum (2) vibrates to perform the vibration resistance test.

2. The method for testing the compressive strength of a concrete steel-concrete structure according to claim 1, wherein: include: A box (1) for providing a detection space; A pressure-vibration mechanism, the pressure-vibration mechanism is arranged inside the box (1), the pressure-vibration mechanism includes a roller (2), the body of the roller (2) is movably connected to a push frame (4), the outer surface of the push frame (4) is fixedly connected to two clamping plates (13), the outer surfaces of the two clamping plates (13) are movably connected to the outer surface of the roller (2), the body of the push frame (4) is rotatably connected to a ball screw (7), the outer surface of the ball screw (7) is provided with a slide (8), the interior of the slide (8) is fixedly connected to the sliding end of the ball screw (7), the outer surface of the slide (8) is fixedly connected to a push bar (9), and the outer surface of the push bar (9) is movably connected to the interior of the roller (2); A drive assembly (3), the drive assembly (3) being arranged inside the drum (2) and obtaining power by contacting the inside of the drum (2) to drive the ball screw (7) to rotate; A vibration damping assembly (5), the vibration damping assembly (5) being arranged at the connection between the roller (2) and the push frame (4) and being used to buffer the vibration generated by the push bar (9); An adjustment component (6) is arranged inside the box (1) and is used to adjust the prefabricated board according to its size and to clamp the prefabricated board.

3. The method for testing the compressive strength of a concrete steel-concrete structure according to claim 2, wherein: Two sets of slide rails (10) are provided on the outside of the roller (2), the outer surfaces of the two slide rails (10) are fixedly connected to the inside of the box (1), the outer surfaces of the two slide rails (10) are slidably connected to linear motors (11), the outer surfaces of the two sets of linear motors (11) are fixedly connected to lifting rods (12), and the output ends of the two sets of lifting rods (12) are fixedly connected to the two ends of the push frame (4) respectively.

4. The method for testing the compressive strength of a concrete steel-concrete structure according to claim 2, wherein: The driving assembly (3) includes a worm (31), the outer surface of the worm (31) is rotatably connected to the inside of the roller (2), the outer surface of the worm (31) is rotatably connected to a fixed plate (32), the outer surface of the fixed plate (32) is fixedly connected to the outer surface of the push frame (4), the outer surface of the worm (31) is rotatably connected to a roller (33), the outer surface of the roller (33) is movably connected to the inside of the roller (2), the outer surface of the worm (31) is meshed with a worm wheel (34), the outer surface of the worm wheel (34) is fixedly connected to a driving rod (35), and the outer surface of the driving rod (35) is rotatably connected to the body of the push frame (4).

5. The method for testing the compressive strength of a concrete steel-concrete structure according to claim 4, wherein: A transmission unit (36) is provided on the outside of the driving rod (35), and the transmission unit (36) includes a transmission rod (361). The outer surface of the transmission rod (361) is penetrated and fixedly connected to two ratchets (362), and the outer surfaces of the two ratchets (362) are penetrated and fixedly connected to transmission gears (363). A rotating gear (364) is provided on the outside of the transmission rod (361), and the outer surface of the rotating gear (364) is fixedly connected to the screw rod of the ball screw (7). The outer surface of the rotating gear (364) is respectively meshed with the outer surfaces of the two transmission gears (363).

6. The method for testing the compressive strength of a concrete steel-concrete structure according to claim 5, wherein: The outer surface of the transmission rod (361) is rotatably connected to a support plate (365), the outer surface of the support plate (365) is fixedly connected to the outer surface of the push frame (4), one end of the transmission rod (361) is fixedly connected to a connecting gear (366), the outer surface of the connecting gear (366) is meshed with a driving gear (367), and the body of the driving gear (367) is fixedly connected to the outer surface of the driving rod (35).

7. The method for testing the compressive strength of a steel-concrete structure according to claim 2, wherein: The vibration damping assembly (5) includes two through slots (51), which are respectively opened on both sides of the drum (2) body and are in a through-state. The interior of the through slot (51) is movably connected to a sleeve (52), the interior of the sleeve (52) is movably connected to the outer surface of the push frame (4), the outer surface of the sleeve (52) is fixedly connected to the outer surface of the splint (13), and the outer surface of the sleeve (52) is fixedly connected to the spring rod (53).

8. The method for testing the compressive strength of a steel-concrete structure according to claim 7, wherein: A fixing ring (54) is fixedly connected to the interior of the through groove (51), a clamping groove (55) is provided in the annular hole of the fixing ring (54), a snap ring (56) is rotatably connected to the interior of the clamping groove (55), and the annular hole of the snap ring (56) is fixedly connected to the output end of the spring rod (53).

9. The method for testing the compressive strength of a concrete steel-concrete structure according to claim 2, wherein: The adjustment assembly (6) comprises a fixed frame (61), the outer surface of the fixed frame (61) is fixedly connected to the interior of the box (1), the outer surface of the fixed frame (61) is slidably connected to a sliding sleeve (62), the outer surface of the sliding sleeve (62) is fixedly connected to a telescopic rod (63), and the output end of the telescopic rod (63) is fixedly connected to a cone (64).

10. The method for testing the compressive strength of a steel-concrete structure according to claim 9, wherein: The outer surface of the sliding sleeve (62) is fixedly connected to a magnetic plate (65), and the outer surface of the magnetic plate (65) is movably connected to the interior of the box (1). Both sides of the outer surface of the magnetic plate (65) are movably connected to electromagnets (66) through magnetic repulsion, and the outer surfaces of the electromagnets (66) on both sides are fixedly connected to the outer surfaces of the fixed frame (61) on both sides.

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