Prefabricated pipe pile bridge pier column bearing platform connecting device

Abstract

The invention relates to the technical field of rail transit construction, in particular to a prefabricated pipe pile bridge pier column bearing platform connecting device. Comprising a first pier column section, a second pier column section, a bearing platform, a connecting assembly and an auxiliary assembly, the first pier column section and the second pier column section are fixedly connected through the connecting assembly and the bearing platform, the connecting assembly is arranged in the bearing platform, and a first grouting layer and a second grouting layer are arranged in the connecting assembly; the first grouting layer is provided with a plurality of first grouting areas, and the second grouting layer is provided with a plurality of second grouting areas; the auxiliary assembly is used for obtaining the deviation condition of the second pier column section during assembly, and the grouting amount of each first grouting area and each second grouting area is judged according to the deviation condition of the second pier column section obtained by the auxiliary assembly; according to the invention, the stability between the pier column sections is enhanced, and the quality of the pier is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of rail transit construction, and in particular to a prefabricated pipe pile bridge pier column cap connection device. Background Art

[0002] Piers are the lower load-bearing objects used to support the upper structure in civil engineering. Piers are important components in highway bridges, railway bridges, pedestrian bridges, overpasses, ramp bridges, flyovers and other projects. As an important part of the bridge, the appearance design and quality management of the pier have a profound impact on the overall stability of the bridge.

[0003] A pier column is usually formed by a plurality of pier column segments fixedly connected. For example, the prior art CN115233559A discloses a method for connecting prefabricated flower piers by bonding prestressed tendons and steel bars, comprising: a prefabricated pipe pile, a pedestal and a prefabricated pier column formed by splicing at least two pier column segments arranged in sequence, the prestressed steel strand passing through the prefabricated pier column and anchored inside the pedestal, the prestressed steel strand forming a bonding structure with the prefabricated pier column and the pedestal through grouting material, wherein the connection between the pier column segments is fixed by a shear key structure, a second steel bar and the steel strand passing through the connection.

[0004] However, the connection between the two pier column segments connected by the above method is not very stable and is prone to bending, resulting in damage to the pier.

[0005] Therefore, there is an urgent need to provide a prefabricated pipe pile bridge pier cap connection device, which can enhance the stability between pier segments and ensure the quality of the piers compared to the existing technology. Summary of the invention

[0006] The present invention solves the technical problems existing in the prior art and provides a prefabricated pipe pile bridge pier column cap connection device.

[0007] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0008] A prefabricated pipe pile bridge pier column and abutment connection device, comprising a first pier column segment, a second pier column segment, a cap, a connection assembly and an auxiliary assembly, wherein the first pier column segment and the second pier column segment are fixedly connected to the cap through the connection assembly, the connection assembly is arranged inside the cap, the connection assembly comprises a first fixing plate, a second fixing plate, a first partition and a second partition, the first fixing plate is sleeved outside the second pier column segment, the second fixing plate is sleeved outside the first pier column segment, the first partition and the second partition are both connected to the first fixing plate at their upper ends and connected to the second fixing plate at their lower ends, the second partition is sleeved outside the first partition, a first grouting layer is arranged between the first partition and the first pier column segment and the second pier column segment, and a second grouting layer is arranged between the first partition and the second partition; the first grouting layer is provided with a plurality of first grouting areas, and the second grouting layer is provided with a plurality of second grouting areas;

[0009] The auxiliary component is used to obtain the offset of the second pier column segment during assembly, and to determine the grouting amount in each first grouting area and each second grouting area based on the offset of the second pier column segment obtained by the auxiliary component.

[0010] Further, the auxiliary component includes a first support frame, a second support frame and an elevator, the first support frame and the second support frame are both U-shaped, a plurality of elevators are arranged between the first support frame and the second support frame, and the first pier column segment and the second pier column segment are both located inside the first support frame and the second support frame;

[0011] The second support frame is internally slidably connected with the first detection component and the second detection component, and the first detection component is arranged opposite to the second detection component; the first detection component and the second detection component are arranged to clamp the second pier column segment, and the first detection component and the second detection component are used to detect the pressure values ​​at multiple different positions of the side wall of the second pier column segment, and judge the offset of the second pier column segment according to the measured pressure values.

[0012] Furthermore, the first detection component includes a sliding block, a fixed block, an electric push rod, a telescopic rod, a spring, a contact plate and a pressure sensor, the sliding block is slidably connected to the inside of the second support frame, the sliding block is extended out of the second support frame, the end face of the sliding block located outside the second support frame is a semicircular arc surface, the semicircular arc surface of the sliding block is provided with a plurality of fixed blocks at intervals along the circumferential direction, the fixed block is embedded in the sliding block, the outer end face of the fixed block is fixedly connected to the electric push rod and the plurality of telescopic rods, the electric push rod is located in a space surrounded by the plurality of telescopic rods, the end of the telescopic rod away from the fixed block is connected to the contact plate, the outer end face of the contact plate is a circular arc surface, the spring is sleeved on the outside of the telescopic rod, one end of the spring is fixedly connected to the fixed block, and the other end of the spring is fixedly connected to the contact block.

[0013] Furthermore, the method for determining the offset of the second pier column segment is:

[0014] S1. The second pier column segment is provided with a plurality of pressure value detection positions along its circumference. The first detection component and the second detection component obtain the pressure value of the second pier column segment at each pressure value detection position, which is recorded as P = {P1, P2, ..., P I}, where P represents the set of pressure values ​​at each pressure value detection position on the side wall of the second pier column segment, P1 represents the pressure value at the first pressure value detection position on the side wall of the second pier column segment, P2 represents the pressure value at the second pressure value detection position on the side wall of the second pier column segment, and P I represents the pressure value of the Ith pressure value detection position on the side wall of the second pier segment, and I represents the total number of pressure value detection positions on the side wall of the second pier segment;

[0015] S2. Sort the pressure values ​​in P from large to small to get P ′ ={P1′,P2′,…,P I ′}, where P ′ represents the set of pressure values ​​received by each pressure value detection position of the second pier column segment side wall after sorting, P1′ represents the pressure value received by the first pressure value detection position of the second pier column segment side wall after sorting, P2′ represents the pressure value received by the second pressure value detection position of the second pier column segment side wall after sorting, P I ' represents the pressure value of the first pressure value detection position on the side wall of the second pier column segment after sorting;

[0016] S3. Get the offset position, specifically:

[0017] When |P1′-P2′|≤P0, the position between the pressure value detection positions of the two second pier column segments corresponding to P1′ and P2′ is set as the offset position;

[0018] When |P1′-P2′|>P0, the pressure value detection position of the second pier column segment corresponding to P1′ is set as the offset position;

[0019] Wherein, P0 represents the pressure threshold.

[0020] Furthermore, the first grouting area and the pressure value detection position of the side wall of the second pier column segment are set in one-to-one correspondence, and the grouting amount of each first grouting area is determined according to the offset position, specifically:

[0021] (1) When the offset position is between the pressure value detection positions of the two second pier column segments corresponding to P1′ and P2′, the first grouting area corresponding to P1′ and P2′ is set as the first grouting volume area, denoted as Q1, and the two first grouting areas adjacent to the first grouting area corresponding to P1′ and P2′ are set as the second grouting volume area, denoted as Q2, and so on, Q1, in Indicates Grouting volume area;

[0022] The grouting volume of the first grouting volume area is calculated by the following formula:

[0023]

[0024] Among them, Q1 represents the grouting amount in the first grouting amount area, and Q0 represents the grouting amount setting value;

[0025] Set The grouting volume in the grouting volume area is the grouting volume setting value;

[0026] According to the grouting volume of the first grouting volume area and the The grouting volume in the grouting volume area is set in descending order

[0027] (2) When the offset position is the second pier segment pressure value detection position corresponding to P1′, the first grouting area corresponding to P1′ is set as the first grouting volume area, and the two first grouting areas connected to the first grouting area corresponding to P1′ are set as the second grouting volume area, and so on, to obtain Q1, in Indicates Grouting volume area;

[0028] The grouting volume of the first grouting volume area is calculated by the following formula:

[0029]

[0030] Wherein, Q1 represents the grouting volume in the first grouting volume area;

[0031] Set The grouting volume in the grouting volume area is the grouting volume setting value;

[0032] According to the grouting volume of the first grouting volume area and the The grouting volume in the grouting volume area is set in descending order

[0033] Furthermore, the second grouting areas are arranged in one-to-one correspondence with the pressure measurement positions on the side wall of the second pier column segment, and the grouting amount of each second grouting area is determined according to the offset position, specifically:

[0034] (1) When the offset position is between the pressure value detection positions of the two second pier column segments corresponding to P1′ and P2′,

[0035] The grouting volume of the second grouting area corresponding to the first grouting volume area is calculated by the following formula:

[0036]

[0037] With The grouting volume of the second grouting area corresponding to the grouting volume area is calculated by the following formula:

[0038]

[0039] Among them, Q1′ represents the grouting volume of the second grouting area corresponding to the first grouting volume area, and Q0′ represents the grouting volume of the second grouting area corresponding to the first grouting volume area. The grouting volume of the second grouting area corresponding to the grouting volume area;

[0040] According to the grouting amount of the second grouting area corresponding to the first grouting amount area and the grouting amount of the second grouting area corresponding to the first grouting amount area The grouting volume of the second grouting area corresponding to the grouting volume area is set in ascending order. The corresponding grouting volume of the second grouting zone;

[0041] (2) When the offset position is the second column segment pressure value detection position corresponding to P1′:

[0042] The grouting volume of the second grouting area corresponding to the first grouting volume area is calculated by the following formula:

[0043]

[0044] With The grouting volume of the second grouting area corresponding to the grouting volume area is calculated by the following formula:

[0045]

[0046] According to the grouting amount of the second grouting area corresponding to the first grouting amount area and the grouting amount of the second grouting area corresponding to the first grouting amount area The grouting volume of the second grouting area corresponding to the grouting volume area is set in ascending order. The corresponding grouting amount of the second grouting area.

[0047] Furthermore, two cylinders are provided outside the second support frame, and the two cylinders are respectively arranged corresponding to the first detection component and the second detection component, and the first detection component and the second detection component are slidably connected inside the second support frame through the cylinders.

[0048] Furthermore, the cylinder corresponding to the offset position is controlled to extend, and the cylinder moves at a set speed. During the movement of the cylinder, the pressure values ​​of multiple pressure value detection positions on the second pier column segment are obtained in real time. When the absolute value of the pressure value difference between any two pressure value detection positions is less than or equal to the pressure threshold, the movement of the cylinder is stopped.

[0049] Furthermore, a mixed slurry of crushed stone and concrete is injected into the first grouting layer.

[0050] Furthermore, fiber fine sand concrete is injected into the second grouting layer.

[0051] Compared with the prior art, the present invention has the following beneficial effects:

[0052] The present invention obtains the displacement of the second pier column segment relative to the first pier column segment through the pressure values ​​at different positions of the outer peripheral surface of the second pier column segment during the installation of the first pier column segment and the second pier column segment, and determines the grouting amount of each first grouting area and the second grouting area according to the displacement situation. According to different displacement situations, the grouting amount of each first grouting area and each second grouting area is set differently. By adjusting the grouting amount of the first grouting area and the second grouting area, the reinforcement force of the connection component on the pier column segment can be targetedly enhanced, thereby enhancing the stability between the pier column segments and ensuring the quality of the pier. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0054] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0055] Figure 3 yes Figure 2 Enlarged view of point B in the middle.

[0056] Figure 4 It is a front view of the auxiliary component of the present invention.

[0057] Figure 5 It is a cross-sectional view showing the internal structure of the second support frame of the present invention.

[0058] Figure 6 yes Figure 5 Enlarged view of point C in the middle.

[0059] Description of reference numerals:

[0060] 1. The first pier column segment; 2. The second pier column segment; 3. The pedestal; 4. The connecting assembly; 41. The first fixed plate; 42. The placement groove; 43. The rubber pad; 44. The first partition; 45. The first grouting layer; 46. The second partition; 47. The second fixed plate; 48. The second grouting layer; 5. The auxiliary assembly; 51. The first support frame; 52. The second support frame; 521. The sliding groove; 53. The lift; 54. The first detection assembly; 541. The cylinder; 542. The fixed block; 543. The electric push rod; 544. The telescopic rod; 545. The spring; 546. The contact plate; 547. The pressure sensor; 548. The positioning groove; 549. The sliding block; 55. The second detection assembly; 6. The connecting column; 7. The guide groove. DETAILED DESCRIPTION

[0061] The technical solution of the present invention will be clearly described below in conjunction with the accompanying drawings. Obviously, the described embodiments are not all embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention. It should be noted that the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", etc. is based on the orientation or position relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0062] like Figure 1 , Figure 2 As shown, the present invention provides a prefabricated pipe pile bridge pier column and abutment connection device, comprising a first pier column segment 1, a second pier column segment 2, a cap 3, a connection assembly 4 and an auxiliary assembly 5, the first pier column segment 1 and the second pier column segment 2 are fixedly connected to the cap 3 through the connection assembly 4, the connection assembly 4 is arranged inside the cap 3, the connection assembly 4 comprises a first fixing plate 41, a second fixing plate 47, a first partition plate 44 and a second partition plate 46, the first fixing plate 41 is sleeved outside the second pier column segment 2, the second fixing plate 47 is sleeved outside the second pier column segment 2, and the second fixing plate 48 is sleeved outside the second pier column segment 2. The plate 47 is sleeved on the outside of the first pier column segment 1, the upper ends of the first partition plate 44 and the second partition plate 46 are connected to the first fixed plate 41, and the lower ends are connected to the second fixed plate 47, the second partition plate 46 is sleeved on the outside of the first partition plate 44, and the first partition plate 44 is sleeved on the outside of the connection between the first pier column segment 1 and the second pier column segment 2. A first grouting layer 45 is provided between the first partition plate 44 and the first pier column segment 1 and the second pier column segment 2, and a second grouting layer 48 is provided between the first partition plate 44 and the second partition plate 46.

[0063] The upper end surface of the first pier column segment 1 is provided with a plurality of guide grooves 7, and the lower end surface of the second pier column segment 2 is also provided with a plurality of guide grooves 7. The guide grooves 7 provided in the first pier column segment 1 and the guide grooves 7 provided in the second pier column segment 2 are provided in a one-to-one correspondence, and a connecting column 6 is inserted in each corresponding guide groove 7 of the first pier column segment 1 and the guide groove 7 of the second pier column segment 2, and the connecting column 6 is cast and fixedly connected to the guide groove 7; the setting of the connecting column 6 plays a guiding and fixing role in the connection between the first pier column segment 1 and the second pier column segment 2.

[0064] like Figure 3 As shown, a placement groove 42 is provided on the lower wall of the first fixing plate 41 , and the placement groove 42 is annular. The upper end of the first partition plate 44 extends into the placement groove 42 , and a rubber pad 43 is attached to the inner wall of the placement groove 42 , and the side wall of the first partition plate 44 contacts the rubber pad 43 .

[0065] The first grouting layer 45 is provided with a plurality of first grouting areas, and the second grouting layer 48 is provided with a plurality of second grouting areas; the auxiliary component 5 is used to obtain the offset of the second pier column segment 2 during assembly, and the grouting amount in each first grouting area and each second grouting area is determined according to the offset of the second pier column segment 2 obtained by the auxiliary component 5; a mixed slurry of crushed stone and concrete is injected into the first grouting layer 45; and fiber fine sand concrete is injected into the second grouting layer 48.

[0066] like Figure 4 , Figure 5 , Figure 6 As shown, the auxiliary component 5 includes a first support frame 51, a second support frame 52 and an elevator 53. The first support frame 51 and the second support frame 52 are both U-shaped. A plurality of elevators 53 are arranged between the first support frame 51 and the second support frame 52. The first pier column segment 1 and the second pier column segment 2 are both located inside the first support frame 51 and the second support frame 52. The first detection component 54 and the second detection component 55 are slidably connected inside the second support frame 52. The first detection component 54 and the second detection component 55 are arranged opposite to each other. The first detection component 54 and the second detection component 55 are arranged to clamp the second pier column segment 2. The first detection component 54 and the second detection component 55 are used to detect the pressure values ​​at multiple different positions on the side wall of the second pier column segment 2, and judge the displacement of the second pier column segment 2 according to the measured pressure values.

[0067] The cylinders 541 are fixedly connected to the opposite outer side walls of the second support frame 52, and the output end of each cylinder 541 is set through the side wall of the second support frame 52. The output end of one cylinder 541 passes through the second support frame 52 and is fixedly connected to the first detection component 54, pushing the first detection component 54 to slide inside the second support frame 52, and the output end of another cylinder 541 passes through the second support frame 52 and is fixedly connected to the second detection component 55, pushing the second detection component 55 to slide inside the second support frame 52; the structure of the first detection component 54 is arranged relative to the position of the second detection component 55, but the specific structure is arranged in the same way.

[0068] The first detection component 54 includes a sliding block 549, a fixed block 542, an electric push rod 543, a telescopic rod 544, a spring 545, a contact plate 546 and a pressure sensor 547. The sliding block 549 is slidably connected to the inside of the second support frame 52. The sliding block 549 extends out of the second support frame 52. The end surface of the sliding block 549 located outside the second support frame 52 is a semicircular arc surface. The semicircular arc surface of the sliding block 549 is provided with a plurality of fixed blocks 542 at intervals along the circumferential direction. The fixed block 542 is embedded in the sliding block 549. The outer end surface of the fixed block 542 is fixedly connected to the electric push rod 543 and the plurality of telescopic rods 544. The plurality of telescopic rods 544 are arranged around the electric push rod 543. The ends of the telescopic rods 544 away from the fixed block 542 are in contact with the contact plate 546. The telescopic rod 544 is connected to the plate 546, the outer end surface of the contact plate 546 is an arc surface, a spring 545 is sleeved on the outside of the telescopic rod 544, one end of the spring 545 is fixedly connected to the fixed block 542, and the other end of the spring 545 is fixedly connected to the contact plate 546. The telescopic rod 544 includes a sleeved first rod and a second rod, one end of the second rod extends into the first rod and will not slide out from the first rod, the other end of the second rod is fixedly connected to the contact plate 546, and the end of the first rod away from the second rod is fixedly connected to the fixed block 542 (the structure of the telescopic rod 544 is the prior art and is not specifically shown in the drawings); a pressure sensor 547 is embedded in the end surface of the contact plate 546 away from the telescopic rod 544, and the pressure sensor 547 is located at the most concave part of the end surface of the contact plate 546;

[0069] A positioning groove 548 is provided on the end surface of the contact plate 546 close to the telescopic rod 544. The positioning groove 548 is corresponding to the telescopic end of the electric push rod 543. After the electric push rod 543 is extended, it extends into the positioning groove 548 and then pushes the contact plate 546 to move close to the second pier column segment 2.

[0070] The method for determining the offset of the second pier column segment 2 is:

[0071] S1. The second pier column segment 2 is provided with a plurality of pressure value detection positions along its circumference, and each pressure detection position is provided with a pressure sensor 547 for measuring the pressure value. First, the two cylinders 541 are controlled to extend to the same distance. When the indication of one of the pressure sensors 547 is not 0, the movement of the two cylinders 541 is stopped. Then, all the electric push rods 543 provided in the first detection component 54 and all the electric push rods 543 provided in the second detection component 55 are controlled to extend to the same distance. When the indications of all the pressure sensors 547 are not 0, the movement of all the electric push rods 543 is stopped. The pressure value of the second pier column segment 2 at each pressure value detection position is obtained at this time, which is recorded as P = {P1, P2, ..., P I}, where P represents the set of pressure values ​​at each pressure value detection position on the side wall of the second pier column segment 2, P1 represents the pressure value at the first pressure value detection position on the side wall of the second pier column segment 2, P2 represents the pressure value at the second pressure value detection position on the side wall of the second pier column segment 2, and P I represents the pressure value received at the Ith pressure value detection position on the side wall of the second pier column segment 2, and I represents the total number of pressure value detection positions on the side wall of the second pier column segment 2.

[0072] S2. Sort the pressure values ​​in P from large to small to get P ′ ={P1′,P2′,…,P I ′}, where P ′ represents the set of pressure values ​​received by each pressure value detection position on the side wall of the second pier column segment 2 after sorting, P1′ represents the pressure value received by the first pressure value detection position on the side wall of the second pier column segment 2 after sorting, P2′ represents the pressure value received by the second pressure value detection position on the side wall of the second pier column segment 2 after sorting, P I ' represents the pressure value received at the Ith pressure value detection position on the side wall of the second pier column segment 2 after sorting.

[0073] S3. Get the offset position, specifically:

[0074] When |P1′-P2′|≤P0, the position between the pressure value detection positions of the two second pier column segments 2 corresponding to P1′ and P2′ is set as the offset position.

[0075] When |P1′-P2′|>P0, the pressure value detection position of the second pier column segment 2 corresponding to P1′ is set as the offset position.

[0076] Wherein, P0 represents the pressure threshold.

[0077] The first grouting area is set in one-to-one correspondence with the pressure value detection position of the side wall of the second pier column segment 2, and the grouting amount of each first grouting area is determined according to the offset position, specifically:

[0078] (1) When the offset position is between the pressure value detection positions of the two second pier column segments 2 corresponding to P1′ and P2′, the first grouting area corresponding to P1′ and P2′ is set as the first grouting volume area, denoted as Q1, and the two first grouting areas adjacent to the first grouting area corresponding to P1′ and P2′ are set as the second grouting volume area, denoted as Q2, and so on, Q1, in Indicates Grouting volume area.

[0079] The grouting volume of the first grouting volume area is calculated by the following formula:

[0080]

[0081] Among them, Q1 represents the grouting volume in the first grouting volume area, and Q0 represents the grouting volume setting value.

[0082] Set The grouting volume in the grouting volume area is the grouting volume setting value.

[0083] According to the grouting volume of the first grouting volume area and the The grouting volume in the grouting volume area is set in descending order

[0084] (2) When the offset position is the pressure value detection position of the second pier column segment 2 corresponding to P1′, the first grouting area corresponding to P1′ is set as the first grouting volume area, and the two first grouting areas connected to the first grouting area corresponding to P1′ are set as the second grouting volume area, and so on, to obtain Q1, in Indicates Grouting volume area.

[0085] The grouting volume of the first grouting volume area is calculated by the following formula:

[0086]

[0087] Among them, Q1 represents the grouting volume in the first grouting volume area.

[0088] Set The grouting volume in the grouting volume area is the grouting volume setting value.

[0089] According to the grouting volume of the first grouting volume area and the The grouting volume in the grouting volume area is set in descending order

[0090] The second grouting areas are set in one-to-one correspondence with the pressure measurement positions on the side wall of the second pier column segment 2, and the grouting amount of each second grouting area is determined according to the offset position, specifically:

[0091] (1) When the offset position is between the pressure value detection positions of the two second pier column segments 2 corresponding to P1′ and P2′,

[0092] The grouting volume of the second grouting area corresponding to the first grouting volume area is calculated by the following formula:

[0093]

[0094] With The grouting volume of the second grouting area corresponding to the grouting volume area is calculated by the following formula:

[0095]

[0096] Among them, Q1′ represents the grouting volume of the second grouting area corresponding to the first grouting volume area, and Q0′ represents the grouting volume of the second grouting area corresponding to the first grouting volume area. The grouting volume area corresponds to the grouting volume of the second grouting area.

[0097] According to the grouting amount of the second grouting area corresponding to the first grouting amount area and the grouting amount of the second grouting area corresponding to the first grouting amount area The grouting volume of the second grouting area corresponding to the grouting volume area is set in ascending order. The corresponding grouting amount of the second grouting area.

[0098] (2) When the offset position is the pressure value detection position of the second pier column segment 2 corresponding to P1′:

[0099] The grouting volume of the second grouting area corresponding to the first grouting volume area is calculated by the following formula:

[0100]

[0101] With The grouting volume of the second grouting area corresponding to the grouting volume area is calculated by the following formula:

[0102]

[0103] According to the grouting amount of the second grouting area corresponding to the first grouting amount area and the grouting amount of the second grouting area corresponding to the first grouting amount area The grouting volume of the second grouting area corresponding to the grouting volume area is set in ascending order. The corresponding grouting amount of the second grouting area.

[0104] After obtaining the offset position, control cylinder 541 to move, control cylinder 541 corresponding to the offset position to extend, and cylinder 541 moves at a set speed. During the movement of cylinder 541, the pressure values ​​of multiple pressure value detection positions on the second pier segment 2 are obtained in real time. When the absolute value of the pressure value difference between any two pressure value detection positions is less than or equal to the pressure threshold, stop the movement of cylinder 541.

[0105] The present invention obtains the displacement of the second pier column segment 2 relative to the first pier column segment 1 by the pressure values ​​exerted on different positions of the outer peripheral surface of the second pier column segment 2 during the installation of the first pier column segment 1 and the second pier column segment 2, and determines the grouting amount of each first grouting area and the second grouting area according to the displacement. According to different displacement conditions, the grouting amount of each first grouting area and each second grouting area is set differently. By adjusting the grouting amount of the first grouting area and the second grouting area, the reinforcement force of the connecting component 4 on the pier column segment can be targetedly enhanced, thereby enhancing the stability between the pier column segments and ensuring the quality of the bridge pier.

[0106] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions of the technical solution of the present invention by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the present invention.

Claims

1. A prefabricated pipe pile bridge pier cap connection device, characterized in that: The invention comprises a first pier column segment, a second pier column segment, a cap, a connection assembly and an auxiliary assembly, wherein the first pier column segment and the second pier column segment are fixedly connected to the cap through the connection assembly, the connection assembly is arranged inside the cap, the connection assembly comprises a first fixing plate, a second fixing plate, a first partition and a second partition, the first fixing plate is sleeved outside the second pier column segment, the second fixing plate is sleeved outside the first pier column segment, the first partition and the second partition have upper ends connected to the first fixing plate and lower ends connected to the second fixing plate, the second partition is sleeved outside the first partition, a first grouting layer is arranged between the first partition and the first pier column segment and the second pier column segment, and a second grouting layer is arranged between the first partition and the second partition; the first grouting layer is provided with a plurality of first grouting areas, and the second grouting layer is provided with a plurality of second grouting areas; The auxiliary component is used to obtain the offset of the second pier column segment during assembly, and to determine the grouting amount in each first grouting area and each second grouting area based on the offset of the second pier column segment obtained by the auxiliary component.

2. A prefabricated pipe pile bridge pier cap connection device according to claim 1, characterized in that: The auxiliary assembly includes a first support frame, a second support frame and an elevator, the first support frame and the second support frame are both U-shaped, a plurality of elevators are arranged between the first support frame and the second support frame, and the first pier column segment and the second pier column segment are both located inside the first support frame and the second support frame; The second support frame is internally slidably connected with the first detection component and the second detection component, and the first detection component is arranged opposite to the second detection component; the first detection component and the second detection component are arranged to clamp the second pier column segment, and the first detection component and the second detection component are used to detect the pressure values ​​at multiple different positions of the side wall of the second pier column segment, and judge the offset of the second pier column segment according to the measured pressure values.

3. A prefabricated pipe pile bridge pier cap connection device according to claim 2, characterized in that: The first detection component includes a sliding block, a fixed block, an electric push rod, a telescopic rod, a spring, a contact plate and a pressure sensor, the sliding block is slidably connected to the inside of the second support frame, the sliding block extends out of the second support frame, the end face of the sliding block located outside the second support frame is a semicircular arc surface, a plurality of fixed blocks are arranged at intervals along the circumferential direction on the semicircular arc surface of the sliding block, the fixed block is embedded in the sliding block, the outer end face of the fixed block is fixedly connected to the electric push rod and the plurality of telescopic rods, the electric push rod is located in a space surrounded by the plurality of telescopic rods, the end of the telescopic rod away from the fixed block is connected to the contact plate, the outer end face of the contact plate is a circular arc surface, the spring is sleeved on the outside of the telescopic rod, one end of the spring is fixedly connected to the fixed block, and the other end of the spring is fixedly connected to the contact block.

4. The prefabricated pipe pile bridge pier cap connection device according to claim 2, characterized in that: The method for determining the offset of the second pier column segment is: S1. The second pier column segment is provided with a plurality of pressure value detection positions along its circumference. The first detection component and the second detection component obtain the pressure value of the second pier column segment at each pressure value detection position, which is recorded as P = {P1, P2, ..., P I }, where P represents the set of pressure values ​​at each pressure value detection position on the side wall of the second pier column segment, P1 represents the pressure value at the first pressure value detection position on the side wall of the second pier column segment, P2 represents the pressure value at the second pressure value detection position on the side wall of the second pier column segment, and P I represents the pressure value of the Ith pressure value detection position on the side wall of the second pier segment, and I represents the total number of pressure value detection positions on the side wall of the second pier segment; S2. Sort the pressure values ​​in P from large to small to get P ′ ={P1′,P2′,…,P I ′}, where P ′ represents the set of pressure values ​​received by each pressure value detection position of the second pier column segment side wall after sorting, P1′ represents the pressure value received by the first pressure value detection position of the second pier column segment side wall after sorting, P2′ represents the pressure value received by the second pressure value detection position of the second pier column segment side wall after sorting, P I ' represents the pressure value of the first pressure value detection position on the side wall of the second pier column segment after sorting; S3. Get the offset position, specifically: When |P1′-P2′|≤P0, the position between the pressure value detection positions of the two second pier column segments corresponding to P1′ and P2′ is set as the offset position; When |P1′-P2′|>P0, the pressure value detection position of the second pier column segment corresponding to P1′ is set as the offset position; Wherein, P0 represents the pressure threshold.

5. The prefabricated pipe pile bridge pier cap connection device according to claim 4, characterized in that: The first grouting area and the pressure value detection position of the second pier column segment side wall are set in one-to-one correspondence, and the grouting amount of each first grouting area is determined according to the offset position, specifically: (1) When the offset position is between the pressure value detection positions of the two second pier column segments corresponding to P1′ and P2′, the first grouting area corresponding to P1′ and P2′ is set as the first grouting volume area, denoted as Q1, and the two first grouting areas adjacent to the first grouting area corresponding to P1′ and P2′ are set as the second grouting volume area, denoted as Q2, and so on. in Indicates Grouting volume area; The grouting volume of the first grouting volume area is calculated by the following formula: Among them, Q1 represents the grouting amount in the first grouting amount area, and Q0 represents the grouting amount setting value; Set The grouting volume in the grouting volume area is the grouting volume setting value; According to the grouting volume of the first grouting volume area and the The grouting volume in the grouting volume area is set in descending order (2) When the offset position is the second pier segment pressure value detection position corresponding to P1′, the first grouting area corresponding to P1′ is set as the first grouting volume area, and the two first grouting areas connected to the first grouting area corresponding to P1′ are set as the second grouting volume area, and so on. in Indicates Grouting volume area; The grouting volume of the first grouting volume area is calculated by the following formula: Wherein, Q1 represents the grouting volume in the first grouting volume area; Set The grouting volume in the grouting volume area is the grouting volume setting value; According to the grouting volume of the first grouting volume area and the The grouting volume in the grouting volume area is set in descending order 6. A prefabricated pipe pile bridge pier cap connection device according to claim 5, characterized in that: The second grouting area is set in one-to-one correspondence with the pressure measurement position on the side wall of the second pier column segment, and the grouting amount of each second grouting area is determined according to the offset position, specifically: (1) When the offset position is between the pressure value detection positions of the two second pier column segments corresponding to P1′ and P2′, The grouting volume of the second grouting area corresponding to the first grouting volume area is calculated by the following formula: With The grouting volume of the second grouting area corresponding to the grouting volume area is calculated by the following formula: Among them, Q1′ represents the grouting volume of the second grouting area corresponding to the first grouting volume area, and Q0′ represents the grouting volume of the second grouting area corresponding to the first grouting volume area. The grouting volume of the second grouting area corresponding to the grouting volume area; According to the grouting amount of the second grouting area corresponding to the first grouting amount area and the grouting amount of the second grouting area corresponding to the first grouting amount area The grouting volume of the second grouting area corresponding to the grouting volume area is set in ascending order. The corresponding grouting volume of the second grouting zone; (2) When the offset position is the second column segment pressure value detection position corresponding to P1′: The grouting volume of the second grouting area corresponding to the first grouting volume area is calculated by the following formula: With The grouting volume of the second grouting area corresponding to the grouting volume area is calculated by the following formula: According to the grouting amount of the second grouting area corresponding to the first grouting amount area and the grouting amount of the second grouting area corresponding to the first grouting amount area The grouting volume of the second grouting area corresponding to the grouting volume area is set in ascending order. The corresponding grouting amount of the second grouting area.

7. The prefabricated pipe pile bridge pier cap connection device according to claim 4, characterized in that: Two cylinders are provided outside the second support frame, and the two cylinders are respectively arranged corresponding to the first detection component and the second detection component. The first detection component and the second detection component are slidably connected inside the second support frame through the cylinders.

8. The prefabricated pipe pile bridge pier cap connection device according to claim 7, characterized in that: The cylinder corresponding to the offset position is controlled to extend, and the cylinder moves at a set speed. During the movement of the cylinder, the pressure values ​​of multiple pressure value detection positions on the second pier column segment are obtained in real time. When the absolute value of the pressure value difference between any two pressure value detection positions is less than or equal to the pressure threshold, the movement of the cylinder is stopped.

9. The prefabricated pipe pile bridge pier cap connection device according to claim 1, characterized in that: A mixed slurry of crushed stone and concrete is injected into the first grouting layer.

10. The prefabricated pipe pile bridge pier cap connection device according to claim 1, characterized in that: Fiber fine sand concrete is injected into the second grouting layer.

Images