Fixing device for side mold of prefabricated box girder

Abstract

The invention relates to the technical field of box girder side forms, in particular to a fixing device for a prefabricated box girder side form, which comprises a mounting bottom plate, a support column, a connecting column, a baffle, a sleeve and the like. The supporting column is slidably connected with a first sliding groove of the mounting bottom plate through a sliding block, a first threaded rod driven by a first hydraulic motor is connected with a threaded hole of a connecting column, the outer end of the connecting column is connected with a second hydraulic motor, and a baffle is driven to rotate through a connecting frame and a connecting ring; a sleeve is arranged on the bottom face of the mounting bottom plate, a rectangular plate is slidably connected into the sleeve, and a fixing hole plate is arranged at the outer end of the rectangular plate to fix a prefabricated box girder side mold. The hydraulic motor is used for driving, and rapid, stable and accurate fixing of the side mold is achieved. In addition, the invention further provides a vibration control method, the vibration tamper and the pressure sensor are arranged and attached, the pressure intensity value of the fixing device is monitored in real time, the material of the connecting column or the vibration frequency of the vibration tamper is adjusted according to the pressure intensity value, and the stability and safety of the side formwork in the vibration process are ensured.

Description

Technical Field

[0001] This invention relates to the field of box girder side formwork technology, and in particular to a fixing device for precast box girder side formwork. Background Technology

[0002] In bridge construction, precast components are generally used to build bridge projects in order to improve construction efficiency. Among them, precast box girders are a commonly used structural component, and their quality is directly related to the safety and stability of the entire project. During the fabrication of precast box girders, the fixing of the side formwork is a crucial step. The fixing of the side formwork not only needs to ensure accuracy and stability, but also needs to adapt to box girders of different sizes and shapes, as well as complex construction environments.

[0003] Currently, most existing precast box girder side formwork fixing devices have some problems. For example, some fixing devices are designed too simply and can only be used for box girders of specific sizes and shapes. They cannot adjust the height and distance according to the actual size of the box girder side formwork for box girders of different specifications or shapes, and the installation method is not flexible enough. These problems limit their widespread application in the production of precast box girders.

[0004] Especially during the vibration process, the pouring and vibration of concrete generate significant vibration and impact forces. If the strength and rigidity of the fixing device are insufficient, it can easily lead to loosening and deformation of the side formwork, thus affecting the forming quality of the precast box girder. Furthermore, if the fixing device cannot be flexibly adjusted according to the actual situation during the vibration process, it will be difficult to guarantee the vibration effect and the production efficiency of the precast box girder.

[0005] Therefore, there is an urgent need for a precast box girder side formwork fixing device that can overcome the above problems, has flexibility, stability and good adaptability to the vibration process, so as to meet the needs of precast box girder production. Summary of the Invention

[0006] The purpose of this invention is to provide a fixing device for the side formwork of precast box girders, so as to solve the problems of insufficient flexibility, inadequate stability, and poor adaptability to the vibration process in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A fixing device for the side formwork of a precast box girder includes a mounting base plate, a support column, a connecting column, a connecting ring, a connecting frame, and baffles. A first sliding groove is formed on one side of the top surface of the mounting base plate. A support column is slidably connected inside the first sliding groove. A strip-shaped hole is formed inside the support column. A connecting column is slidably connected inside the strip-shaped hole. A first hydraulic motor is fixedly connected to one end of the first sliding groove near the mounting base plate. A first threaded rod is fixedly connected to the output end of the first hydraulic motor. A threaded hole is formed on one side of the connecting column. The first threaded rod is threadedly connected to the threaded hole. A second hydraulic motor is fixedly connected to the outer wall of the connecting column away from the first hydraulic motor. A connecting frame is fixedly connected to the output end of the second hydraulic motor. Connecting rings are fixedly connected to both ends of the connecting frame. Baffles are fixedly connected to both ends of the connecting rings.

[0008] Preferably, four sleeves are fixedly connected to the bottom surface of the mounting base plate, and rectangular plates are slidably connected inside the four sleeves. A fixing hole plate is fixedly connected to the end of the rectangular plate away from the sleeve. Several evenly arranged fixing holes are opened on the side of the rectangular plate and the sleeve.

[0009] Preferably, a third hydraulic motor is fixedly connected to the top surface of the mounting base plate near the first sliding groove, and a second threaded rod is fixedly connected to the output end of the third hydraulic motor. The length of the second threaded rod is equal to the length of the first sliding groove. A threaded plate is fixedly connected to the bottom of the support column, and the second threaded rod is threadedly connected to the threaded plate. When the second threaded rod rotates, the support column is slidably connected to the mounting base plate, which can drive the support column to move, increasing the flexibility of the device.

[0010] Preferably, a slider is fixedly connected to the bottom of the support column, and the support column is slidably connected to the first groove through the slider.

[0011] Preferably, strip-shaped sliders are fixedly connected to both sides of the connecting column, and strip-shaped grooves are provided on both sides of the inside of the strip-shaped hole. The strip-shaped sliders are slidably connected to the strip-shaped grooves, which plays a role in limiting and stabilizing the connecting column.

[0012] Specifically, if the connection point between the connecting frame and the second hydraulic motor is at the center of the connecting ring, then the connection between the connecting column and the second hydraulic motor must meet the following conditions. ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ In the formula, R To ensure the load-bearing capacity of the connection, including the design value of torque. T d Vertical central axis bending moment design value M 1d Design value of horizontal central axis bending moment in the direction of the first chute M 2d Horizontal shear force design value V hd and vertical shear design value V vd ; S The loads generated at the connection point by the baffle, connecting ring, second hydraulic motor, and connecting frame, including torque. T Vertical shear force V v Horizontal shear force V h and vertical central axis bending moment M 1. Bending moment along the horizontal central axis in the direction of the first chute M 2; γ A safety factor greater than 1; ρ b The density of the baffle b Let be the width of the baffle, with the width direction corresponding to the slope direction of the baffle. l The length of the baffle t For the thickness of the baffle, g It is the acceleration due to gravity. R The radius of the connecting loop, θ The angle of inclination of the baffle relative to the horizontal plane. ρ t The density of concrete, l 1 represents the distance between the fixed end of the connecting ring and the top surface of the baffle. l 2 represents the distance between the connecting ring, the lower fixed end of the baffle, and the bottom surface of the baffle. m c The total mass of the connecting ring and connecting frame assembly structure. e c The horizontal distance from the center of mass of the connecting ring and connecting frame assembly structure to the center of the circle. e h The horizontal distance from the center of the connecting ring to the connection point. m m For the mass of the second hydraulic motor, e m The distance from the center of mass of the second hydraulic motor to the connection point is the horizontal distance; the bearing capacity of the connecting column must also be sufficient to withstand torque simultaneously. T Vertical shear forceV v Horizontal shear force design value V h and bending moment design value M The function, 9 ⑩

[0013] In the formula, [ σ [ ] represents the allowable stress of the connecting column material. W x For the cross-section of the connecting column under torque T Section modulus in the direction, W y For connecting column cross-sections under bending moment M Section modulus in two directions, W p Let be the torsional section modulus of the connecting column cross section. m co For the mass of the connecting column, A co This represents the area of ​​the cross-section of the connecting column.

[0014] Specifically, the vibration control method for the fixing device includes the following steps: S1. Arrange the attached vibrators, including determining the required baffle length and the number of fixing devices according to the length of the precast box girder, and installing them at a certain interval on the outside of the baffle according to the effective vibration range of the attached vibrators. S2. Arrange a pressure sensor, including a sliding connecting column, so that it is completely retracted into the strip-shaped hole of the support column. Arrange the pressure sensor at the center of the connecting column below the connection between the connecting column and the second hydraulic motor and above the top surface of the support column. S3. Monitoring pressure sensors, including real-time monitoring of the pressure values ​​of pressure sensors on each fixed device during concrete pouring and vibration. When the pressure is detected... i The pressure values ​​of fewer than one pressure sensor exceed the threshold. p If so, the connecting column will be replaced with a higher strength material, and the threshold will be adjusted accordingly. p Alternatively, the connecting column could be replaced with a larger cross-section, when monitored... j The pressure values ​​of more than one pressure sensor exceed the threshold. p If necessary, adjust the vibration frequency of the attached vibrator.

[0015] Furthermore, the threshold p It is 0.85[ σ ].

[0016] In summary, compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention achieves flexible sliding adjustment of the connecting column within the supporting column by using a first sliding groove on the mounting base plate to slide against the slider of the supporting column, and a first threaded rod driven by a first hydraulic motor to thread into the connecting column. This design not only allows the fixed position of the side formwork to be adjusted according to actual needs, but also greatly improves the flexibility of the fixing device. Simultaneously, the second threaded rod driven by a third hydraulic motor connects to the threaded plate at the bottom of the supporting column, further enhancing the adjustment range of the device. This enables the device to adapt to precast box girder side formwork of different sizes and shapes, improving work efficiency and casting quality.

[0017] 2. This invention incorporates a scientific vibration control method into the fixing device, effectively improving the stability and safety during the casting process. By arranging attached vibrators and pressure sensors, the pressure value on the fixing device is monitored in real time. Based on the monitoring results, the material of the connecting column or the vibration frequency of the attached vibrator can be adjusted in a timely manner. When the monitored pressure value exceeds a preset threshold, corresponding measures are taken, such as replacing the connecting column with a high-strength material or adjusting the vibrator frequency, to ensure that the side formwork is not damaged due to excessive pressure during vibration, thereby guaranteeing the overall quality of the precast box girder. In addition, this vibration control method also enables refined management of the casting process, improving construction efficiency and safety. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the first view of the present invention; Figure 2 This is a schematic diagram of the support column of the present invention; Figure 3 This is a schematic diagram of the structure of the second view of the present invention; Figure 4 This is a schematic diagram of the structure of the first threaded rod of the present invention; Figure 5 This is a schematic diagram of the mounting base plate of the present invention; Figure 6 This is a schematic diagram of the connecting column of the present invention.

[0019] In the diagram: 1-Mounting base plate, 2-Rectangular plate, 3-Sleeve, 4-Fixing hole plate, 5-Fixing hole, 6-Threaded plate, 7-Third hydraulic motor, 8-Second threaded rod, 9-Connecting ring, 10-Second hydraulic motor, 11-Baffle, 12-Connecting frame, 13-First slide groove, 14-Strip hole, 15-Strip slide groove, 16-Support column, 17-First hydraulic motor, 18-First threaded rod, 19-Slider, 20-Strip slider, 21-Connecting column, 22-Threaded hole. Detailed Implementation

[0020] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments given herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may have other embodiments, and therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0022] like Figures 1 to 6 As shown, a fixing device for the side formwork of a precast box girder includes a mounting base plate 1. A first sliding groove 13 is provided on one side of the top surface of the mounting base plate 1. A support column 16 is slidably connected inside the first sliding groove 13. A strip-shaped hole 14 is provided inside the support column 16. A connecting column 21 is slidably connected inside the strip-shaped hole 14. A first hydraulic motor 17 is fixedly connected to one end of the first sliding groove 13 near the mounting base plate 1. A first threaded rod 18 is fixedly connected to the output end of the first hydraulic motor 17. A threaded hole 22 is provided on one side of the connecting column 21. The first threaded rod 18 is threadedly connected to the threaded hole 22. A second hydraulic motor 10 is fixedly connected to the outer wall of the connecting column 21 away from the first hydraulic motor 17. A connecting frame 12 is fixedly connected to the output end of the second hydraulic motor 10. Connecting rings 9 are fixedly connected to both ends of the connecting frame 12. A baffle 11 is fixedly connected to one end of the connecting ring 9.

[0023] Specifically, four sleeves 3 are fixedly connected to the bottom surface of the mounting base plate 1. Rectangular plates 2 are slidably connected inside the four sleeves 3. A fixing hole plate 4 is fixedly connected to the end of the rectangular plate 2 away from the sleeve 3. Several evenly arranged fixing holes 5 are opened on the sides of the rectangular plate 2 and the sleeves 3.

[0024] Specifically, a third hydraulic motor 7 is fixedly connected to the top surface of the mounting base plate 1 near the first slide groove 13. A second threaded rod 8 is fixedly connected to the output end of the third hydraulic motor 7. A threaded plate 6 is fixedly connected to the bottom of the support column 16. The second threaded rod 8 is threadedly connected to the threaded plate 6. By using this scheme, the second threaded rod 8 can be threadedly connected to the threaded plate 6. When the second threaded rod 8 rotates, the support column 16 is slidably connected to the mounting base plate 1, which can drive the support column 16 to move, increasing the flexibility of the device.

[0025] Specifically, a slider 19 is fixedly connected to the bottom of the support column 16. The support column 16 is slidably connected to the first slide groove 13 through the slider 19. The outer wall size of the slider 19 is adapted to the inner wall size of the first slide groove 13, so that the support column 16 and the mounting base plate 1 are slidably connected.

[0026] Specifically, strip sliders 20 are fixedly connected to both sides of the connecting column 21, and strip grooves 15 are provided on both sides of the inside of the strip hole 14. The strip sliders 20 are slidably connected to the strip grooves 15. By using this scheme, the connecting column 21 can be limited and stabilized.

[0027] Specifically, since the connection point between the connecting frame 12 and the second hydraulic motor 10 is at the center of the connecting ring 9, the connection point between the connecting column 21 and the second hydraulic motor 10 must meet the following conditions. ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ In the formula, R To ensure the load-bearing capacity of the connection, including the design value of torque. T d Vertical central axis bending moment design value M 1d Design value of horizontal central axis bending moment in the direction of the first chute M 2d Horizontal shear force design value V hd and vertical shear design value V vd ; S The loads generated at the connection point by the baffle 11, connecting ring 9, second hydraulic motor 10, and connecting frame 12, including torque. T Vertical shear force V v Horizontal shear force V h and vertical central axis bending moment M 1. Bending moment along the horizontal central axis in the direction of the first chute M 2; γ A safety factor greater than 1; ρ b The density of baffle 11 b The width of baffle 11 is defined by the slope direction of baffle 11. l The length of baffle 11 t The thickness of baffle 11 g It is the acceleration due to gravity. R The radius of connecting ring 9, θThe angle of inclination of baffle 11 relative to the horizontal plane. ρ t The density of concrete, l 1 represents the distance between the fixed end of the connecting ring 9 and the baffle 11 and the top surface of the baffle. l 2 represents the distance between the lower fixed end of the connecting ring 9 and the bottom surface of the baffle 11. m c The total mass of the combined structure of connecting ring 9 and connecting frame 12 is... e c The horizontal distance from the center of mass to the center of the circle in the combined structure of connecting ring 9 and connecting frame 12. e h The horizontal distance from the center of connecting ring 9 to the connection point. m m For the mass of the second hydraulic motor 10, e m The horizontal distance from the center of mass of the second hydraulic motor 10 to the connection point; the bearing capacity of the connecting column 21 must also be sufficient to withstand torque simultaneously. T Vertical shear force V v Horizontal shear force design value V h and bending moment design value M The function, 9 ⑩

[0028] In the formula, [ σ [This refers to the allowable stress of the material of connecting column 21] W x For the cross section of connecting column 21 under torque T Section modulus in the direction, W y For the cross section of connecting column 21 under bending moment M Section modulus in two directions, W p Let be the torsional section modulus of the cross section of connecting column 21. m co For the mass of connecting column 21, A co This represents the area of ​​the cross-section of connecting column 21.

[0029] Specifically, the vibration control method for the fixing device includes the following steps: S1. Arrange the attached vibrators, including determining the required length of the baffle 11 and the number of fixing devices according to the length of the precast box girder, and installing them at a certain interval on the outside of the baffle 11 according to the effective vibration range of the attached vibrators. S2. Arrange a pressure sensor, including a sliding connecting column 21, which is completely retracted into the strip hole 14 of the support column 16. Arrange the pressure sensor at the center of the connecting column 21 below the connection between the connecting column 21 and the second hydraulic motor 10 and above the top surface of the support column 16. S3. Monitoring pressure sensors, including real-time monitoring of the pressure values ​​of pressure sensors on each fixed device during concrete pouring and vibration. When the pressure is detected... i The pressure values ​​of fewer than one pressure sensor exceed the threshold. p If so, the connecting post 21 will be replaced with a higher strength material, and the threshold will be adjusted accordingly. p Alternatively, connecting column 21 could be modified to have a larger cross-section, when monitored... j The pressure values ​​of more than one pressure sensor exceed the threshold. p If necessary, adjust the vibration frequency of the attached vibrator.

[0030] Furthermore, the threshold p It is 0.85[ σ ].

[0031] A fixing device for the side formwork of a precast box girder, the working principle of which is as follows: First, the second hydraulic motor 10 drives the connecting ring 9 to rotate, which in turn drives the baffle 11 to rotate. This allows for adjustment based on the angle of different box girder side molds, providing greater flexibility and applicability. After adjusting the baffle 11, the device is fixed near the box girder side mold using the fixing holes 4 on the bottom of the mounting base plate 1. The adjustable rectangular plate 2 can be adjusted according to different installation environments, further increasing the device's flexibility and ease of installation. The rectangular plate is then fixed and limited through the fixing holes 5 to maintain the device's stability. Second, after fixing the device, the third hydraulic motor 7 is activated. The third hydraulic motor 7 drives the second threaded rod 8 to rotate. The second threaded rod 8 is threadedly connected to the threaded plate 6, which is fixedly connected to the support column 16, providing support. Column 16 is slidably connected to the first slide groove 13 via slider 19. Rotation of the second threaded rod 8 moves the support column 16 and baffle 11, causing the baffle 11 to press against the side formwork of the box girder, providing hydraulic fixation. This makes operation more convenient and faster, ensuring stability while maintaining good flexibility. Finally, the first hydraulic motor 17 drives the first threaded rod 18 to rotate. The first threaded rod 18 is threadedly connected to the threaded hole 22, allowing the connecting column 21 to move upwards. The strip slide groove 15 and strip slider 20 fix and limit the connecting column 21, ensuring stability during its vertical movement. The movement of the connecting column 21 moves the baffle 11, which can be adjusted according to different needs, further increasing the flexibility of the device. During concrete pouring and vibration, the pressure values ​​of the pressure sensors on each fixing device are monitored in real time. When the pressure values ​​of a few (less than i) pressure sensors exceed the set threshold p (0.85[σ]), the load-bearing capacity of the connecting column is enhanced; when the pressure values ​​of most (more than j) pressure sensors exceed the threshold p, the vibration frequency of the attached vibrator is adjusted to reduce the impact and vibration on the fixing device.

[0032] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A fixing device for a precast box girder side form, characterized in that: Including installation bottom plate (1), support column (16), connecting column (21), connecting ring (9), connecting frame (12) and baffle (11), the top surface of installation bottom plate (1) is opened on one side with first sliding slot (13), the first sliding slot (13) is slidably connected with support column (16) inside, the support column (16) is opened with strip-shaped hole (14) inside, the strip-shaped hole (14) is slidably connected with connecting column (21) inside, the one end of first sliding slot (13) close to installation bottom plate (1) is fixedly connected with first hydraulic motor (17), the output end of first hydraulic motor (17) is fixedly connected with first threaded rod (18), the one side of connecting column (21) is opened with threaded hole (22), the first threaded rod (18) is threadedly connected with threaded hole (22), the one end of connecting column (21) away from first hydraulic motor (17) is fixedly connected with second hydraulic motor (10), the output end of second hydraulic motor (10) is fixedly connected with connecting frame (12), the both ends of connecting frame (12) are fixedly connected with connecting ring (9), the both ends of connecting ring (9) are fixedly connected with baffle (11).

2. The device for fixing the side form of a precast box girder according to claim 1, characterized in that: The bottom surface of installation bottom plate (1) is fixedly connected with four sleeves (3), the inside of four sleeves (3) is slidably connected with rectangular plate (2), the one end of rectangular plate (2) away from sleeve (3) is fixedly connected with fixed hole plate (4), the side of rectangular plate (2) and sleeve (3) is opened with a plurality of evenly arranged fixed hole (5).

3. The device for fixing the side form of a precast box girder according to claim 1, characterized in that: The top surface of installation bottom plate (1) is fixedly connected with third hydraulic motor (7) on one side close to first sliding slot (13), the output end of third hydraulic motor (7) is fixedly connected with second threaded rod (8), the length of second threaded rod (8) is equal to the length of first sliding slot (13), the bottom of support column (16) is fixedly connected with threaded plate (6), second threaded rod (8) is threadedly connected with threaded plate (6).

4. The device for fixing the side form of a precast box girder according to claim 1, characterized in that: The bottom of support column (16) is fixedly connected with sliding block (19), support column (16) is slidably connected with first sliding slot (13) through sliding block (19).

5. The device for fixing the side form of a precast box girder according to claim 1, characterized in that: The both sides of connecting column (21) are fixedly connected with strip-shaped sliding block (20), the both sides of strip-shaped hole (14) are opened with strip-shaped sliding slot (15) inside, strip-shaped sliding block (20) is slidably connected with strip-shaped sliding slot (15).

6. The device of claim 1, wherein: The connecting point of connecting frame (12) and second hydraulic motor (10) is at the center of connecting ring (9), then the connecting point of connecting column (21) and second hydraulic motor (10) must satisfy the following conditions, ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ wherein, R is the design value of the connection load, including the torque design value T d is the design value of the vertical central axis bending moment M 1d is the design value of the first chute direction horizontal central axis bending moment M 2d is the design value of the horizontal shear force V hd is the design value of the vertical shear force V vd ; S is the load generated by the baffle (11), the connecting ring (9), the second hydraulic motor (10), and the connecting frame (12) at the connection, including the torque T is the vertical shear force V v is the horizontal shear force V h is the vertical central axis bending moment M 1, the first chute direction horizontal central axis bending moment M 2; The vibration control method of the fixing device comprises the following steps: is a safety factor greater than 1; S1, arranging the attached vibrator, including determining the required baffle (11) length and the number of fixing devices according to the length of the precast box girder, and installing the attached vibrator outside the baffle (11) at a certain interval according to the effective vibrating range of the attached vibrator; b is the density of the baffle (11), b is the width of the baffle (11), and the width direction is the slope direction of the baffle (11), l is the length of the baffle (11), t is the thickness of the baffle (11), g is the acceleration of gravity, R is the radius of the connecting ring (9), ​ is the inclination angle of the baffle (11) to the horizontal plane, ​ t is the density of the concrete, l 1 is the distance from the fixed end of the connecting ring (9) and the baffle to the top surface of the baffle, l 2 is the distance from the lower fixed end of the connecting ring (9) and the baffle to the bottom surface of the baffle, m c is the total mass of the combined structure of the connecting ring (9) and the connecting frame (12), e c is the horizontal distance from the center of mass of the combined structure of the connecting ring (9) and the connecting frame (12) to the center of the circle, e h is the horizontal distance from the center of the connecting ring (9) to the connection, m m is the mass of the second hydraulic motor (10), e m L2 - horizontal distance of the second hydraulic motor (10) centroid to the connection; the carrying capacity of the connection column (21) must also be able to withstand the simultaneous action of torque T , vertical shear V v , horizontal shear design value V h and bending moment design value M , ⑨ ⑩ 7. where, ​ ] is the allowable stress of the connecting column (21) material, W x is the section modulus of the connecting column (21) cross section in the torque T direction, W y is the section modulus of the connecting column (21) cross section in the bending M moment direction, W p is the torsional section modulus of the connecting column (21) cross section, m co is the mass of the connecting column (21), A co is the area of the connecting column (21) cross section.

8. The device for fixing the side form of a precast box girder according to any one of claims 1-6, characterized in that: ​ ​ S2, arranging a pressure sensor, including a sliding connecting column (21), which is completely retracted into the strip-shaped hole (14) of the supporting column (16), arranging the pressure sensor below the connecting column (21) and the connecting position of the second hydraulic motor (10) and above the center of the connecting column (21) on the top surface of the supporting column (16); S3, monitoring pressure sensor, including in the process of concrete pouring and vibrating, real-time monitoring of the pressure value of each fixed device pressure sensor, when monitoring the pressure value of i one or more pressure sensors exceeds the threshold value p , the connecting column (21) is changed to a material with higher strength, and the threshold value is adjusted accordingly p , or the connecting column (21) is changed to a larger cross section, when monitoring the pressure value of j one or more pressure sensors exceeds the threshold value p , adjust the vibration frequency of the attached vibrator.

9. The device of claim 7, wherein: the threshold value p is 0.85 σ ].

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