Auxiliary device for square pile welded joint bearing capacity test
By adjusting the welding angle of the support and rolling surface, combined with the fixing of the paired bolts, the problem of easy damage to the weld during the welding process is solved, and high-quality welding joint testing is achieved.
Patent Information
- Application Number
- CN202422580070.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-24
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-10-24
AI Technical Summary
When welding square pile joints, the inertial force generated by the self-weight can easily destroy the weld, resulting in inaccurate tests and tests, and it is difficult for crane tools to accurately control the flip angle, affecting the welding quality.
The welding angle is adjusted by supporting parts and rolling surfaces, and the square pile joints are supported by ring support and mounting parts. The welding surface is adjusted by rolling surfaces on the ground to avoid additional stress from the weld during the flip process. The ring support is fixed by fixing the bolts and fixing nuts to ensure roll consistency.
It effectively avoids the failure of the weld due to additional stress during the flip process, ensures the welding quality, improves the stability and safety of the welded joints, and achieves accurate tests.
Smart Images
Figure CN223226697U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of prefabricated pile joint bearing capacity testing, and in particular to an auxiliary device for testing the bearing capacity of square pile welded joints. Background Art
[0002] Considering the production process and ease of lifting, the length of a single precast pile section is generally less than 15m. When the bearing stratum at the pile end is buried deeper than 15m, two piles must be connected to achieve the designed pile length. Piles can be connected by welding or mechanical connection. Welding is the most widely used method in actual projects due to its ease of operation. With the continuous expansion of pile foundation applications, square pile joints and rectangular piles have been frequently used as pull-out piles or support piles in recent years. Under pull-out loads or horizontal loads, the stress levels at the welds are high. To ensure project safety, it is often necessary to test the bending and shear bearing capacity of the pile head welds.
[0003] During the test preparation phase, the pile head welding process is typically performed in a top-down welding position to ensure welding quality. This requires the four sides of the square pile joint to be flipped upwards in sequence. On the one hand, the heavy weight of the two pile sections makes manual flipping extremely difficult, while precise control using a crane is difficult. Excessive flipping can cause welded sections to become unsoldered. Furthermore, if the pile head is not fully welded on all four sides, the inertial force generated by the pile's own weight during flipping can easily damage the welds, leading to inaccurate testing. Utility Model Content
[0004] In order to improve the problem that the inertial force generated by the dead weight of square pile joints during the hoisting and flipping process can easily damage the welds, resulting in inaccurate tests, the present application provides an auxiliary device for the bearing capacity test of square pile welded joints.
[0005] The auxiliary device provided in this application for the bearing capacity test of square pile welded joints adopts the following technical solution:
[0006] An auxiliary device for testing the bearing capacity of square pile welded joints includes support members corresponding one to one to two square pile joints to be welded, each of the support members is provided with a rolling surface capable of rolling, each of the square pile joints is inserted into the support member, and the support member is provided with a mounting member for supporting the square pile joint.
[0007] By adopting the above technical solution, when welding two square pile joints, the two square pile joints are inserted into their respective corresponding support members and supported by the mounting members, and then the two square pile joints are aligned for welding. After the welding on one side is completed, the support members on the two square pile joints are pushed at the same time. The support members roll on the ground with the help of the rolling surface to adjust the welding surfaces of the two square pile joints, so that all sides of the pile head can be at a good welding angle, and effectively avoid additional stress in the weld at the joint during the flipping process, avoid failure of the weld connection at the joint, thereby ensuring the quality of the welded joint and achieving the effect of the test.
[0008] In a specific possible implementation manner, the support member is a circular ring support, and the rolling surface is a circumferential side surface of the circular ring support.
[0009] By adopting the above technical solution and utilizing the circular ring support, the convenience of manufacturing the support member is improved.
[0010] In a specific possible implementation scheme, the number of the mounting members is four, and the four mounting members are arranged opposite to each other in pairs along the circumference of the annular support, and each of the mounting members can abut against the square pile joint.
[0011] By adopting the above technical solution, four sets of mounting parts are used to support the square pile joint, thereby improving the stability of the square pile joint when installed in the circular support.
[0012] In a specific possible implementation manner, the four mounting members are all in abutment with the square pile joint, so that the center line of the square pile joint is collinear with the axis of the circular support.
[0013] By adopting the above technical solution, the center line of the square pile joint is collinear with the axis of the circular ring support, thereby improving the rolling convenience of the circular ring support.
[0014] In a specific possible implementation scheme, the four mounting members correspond to the four corners of the square pile joint respectively;
[0015] The support member includes two connecting parts that are perpendicular to each other, each of the connecting parts is fixedly connected to the circular support, and the two connecting parts are respectively used to support the two side faces at the corners of the square pile joint.
[0016] By adopting the above technical solution, the four corners of the square pile joint are fixed by using the two connecting parts in each support member, which can enhance the overall stability of the square pile joint and prevent loosening.
[0017] In a specific possible implementation manner, a right-angle support portion that matches the corner of the square pile joint is connected between the two connecting portions.
[0018] By adopting the above technical solution and utilizing the cooperation between the right-angle support portion and the corner of the square pile joint, the square pile joint can be effectively prevented from being deformed or damaged when subjected to force, thereby improving the stability and safety of the entire structure.
[0019] In a specific possible implementation scheme, the annular supports on two adjacent square pile joints are connected and fixed by a fixing piece.
[0020] By adopting the above technical solution and using fixing parts to fix the annular supports on the two square pile joints, the rolling consistency of the two square pile joints can be improved, and the weld rupture during rolling can be effectively avoided.
[0021] In a specific possible implementation scheme, the fixing part includes a through bolt and a fixing nut. The through bolt is inserted into the circular ring supports on the two square pile joints along the length direction of the square pile joint, and the fixing nut is screwed on one end of the through bolt that passes through the circular ring support.
[0022] By adopting the above technical solution, when fixing the circular ring supports on the two square pile joints, the through bolts are passed through the circular ring supports on the two square pile joints in turn, and then the fixing nuts are screwed onto the through bolts, thereby improving the convenience of fixing the circular ring supports on the two square pile joints.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. When welding two square pile joints, insert the two square pile joints into their corresponding support pieces and support them through the mounting pieces. Then align the two square pile joints for welding. After one side is welded, push the support pieces on the two square pile joints at the same time. The support pieces roll on the ground with the help of the rolling surface to adjust the welding surfaces of the two square pile joints so that each side of the pile head can be at a good welding angle. It also effectively avoids additional stress on the weld at the joint during the flipping process, avoids failure of the weld connection at the joint, thereby ensuring the quality of the welded joint and achieving the effect of the test.
[0025] 2. Using through bolts and fixing nuts to fix the circular ring supports on the two square pile joints can improve the rolling consistency of the two square pile joints and effectively avoid weld rupture during rolling. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is a structural schematic diagram of an auxiliary device for testing the bearing capacity of square pile welded joints in Example 1 of the present application.
[0027] Figure 2 yes Figure 1 Enlarged view of part A in the middle.
[0028] Figure 3 yes Figure 1 Enlarged view of part B in the middle.
[0029] Figure 4 This is a structural schematic diagram of an auxiliary device for testing the bearing capacity of square pile welded joints in Example 2 of the present application.
[0030] Explanation of the accompanying reference numerals: 1. Square pile joint; 2. Support member; 21. Circular ring support; 22. Rolling surface; 3. Mounting member; 31. Connecting portion; 32. Right-angle supporting portion; 33. Arc-shaped portion; 4. Fixing member; 41. Through bolt; 42. Fixing nut. DETAILED DESCRIPTION
[0031] The following is combined with Figure 1-4 This application is described in further detail.
[0032] An embodiment of the present application discloses an auxiliary device for testing the bearing capacity of square pile welded joints.
[0033] Example 1
[0034] Reference Figure 1 An auxiliary device for the bearing capacity test of square pile welded joints includes a support member 2. In this embodiment, two square pile joints 1 that need to be welded are taken as an example, and the corresponding support members 2 are two groups. The support member 2 in this embodiment is a circular ring support 21. The circumferential side wall of the circular ring support 21 is a rolling surface 22. Each square pile joint 1 corresponds to two circular ring supports 21, which improves the rolling stability of the square pile joint 1. Four mounting members 3 are provided in each circular ring support 21. The square pile joint 1 is inserted into the two circular ring supports 21 of the same group. The circular ring support 21 supports the square pile joint 1 through the four mounting members 3 to ensure the stability of the square pile joint 1 in the circular ring support 21.
[0035] When welding two square pile joints 1, the two square pile joints 1 are inserted into their respective corresponding support members 2 and supported by the mounting members 3. Then, the two square pile joints 1 are aligned for welding. After the welding on one side is completed, the support members 2 on the two square pile joints 1 are pushed at the same time. The support members 2 roll on the ground with the help of the rolling surface 22 to adjust the welding surfaces of the two square pile joints 1 so that all sides of the pile head can be at a good welding angle, and effectively avoid additional stress in the weld at the joint during the flipping process, avoid failure of the weld connection at the joint, thereby ensuring the quality of the welded joint and achieving the effect of the test.
[0036] Reference Figure 1Four support members 2 are located at the four corners of the square pile joint 1. Four mounting members 3 are arranged in pairs along the circumference of the circular support 21. The support members 2 support the corners of the square pile joint 1, enhancing the overall stability of the square pile joint 1 and preventing loosening. The four support members 2 support the square pile joint 1 so that the centerline of the square pile joint 1 is collinear with the axis of the circular support 21, improving the rolling convenience of the circular support 21.
[0037] Reference Figure 1 、 Figure 2 and Figure 3 The support member 2 of this embodiment includes two connecting portions 31 arranged perpendicular to each other. The two connecting portions 31 correspond to the two pile surfaces at the corners, respectively. The ends of the two connecting portions 31 near the inner side wall of the circular support 21 are connected by an arcuate portion 33, which is welded and fixed to the inner side wall of the circular support 21. The two connecting portions 31 are used to support the two side surfaces at the corners of the square pile joint 1, ensuring the stability of the square pile joint 1 when it is turned over and preventing the inertial force generated by its own weight from damaging the weld. The two connecting portions 31 are connected by a right-angle support portion 32. The right-angle support portion 32 cooperates with the corner of the square pile joint 1, so that the right-angle support portion 32 fits the two pile surfaces at the corner, which can effectively prevent the square pile joint 1 from deformation or damage when subjected to force, thereby improving the stability and safety of the entire structure. The two connecting parts 31, the right-angle support part 32, and the arc part 33 are all formed in one piece by stamping of plate materials. The connecting part 31, the arc part 33, and the right-angle support part 32 are all made of high-strength stainless steel materials to ensure that they can still maintain high stability and reliability under stress.
[0038] The implementation principle of Example 1 is as follows: when welding two square pile joints 1, the two square pile joints 1 are inserted into their respective corresponding two circular ring supports 21. At this time, the four corners of the square pile joint 1 are respectively fitted with the corresponding right-angle support parts 32, and then the two square pile joints 1 are aligned for welding. After one side is welded, the circular ring supports 21 on the two square pile joints 1 are pushed at the same time. The circular ring supports 21 roll on the ground with the help of the rolling surface 22 to adjust the welding surfaces of the two square pile joints 1, so that all sides of the pile head can be at a good welding angle, and effectively avoid additional stress in the weld at the joint during the flipping process, avoid failure of the weld connection at the joint, thereby ensuring the quality of the welded joint and achieving the effect of the test.
[0039] Example 2
[0040] Reference Figure 4The difference between this embodiment and embodiment 1 is that the circular supports 21 adjacent to the welds on the two square pile joints 1 are fixedly connected by multiple sets of fixing members 4. The multiple sets of fixing members 4 are evenly arranged along the circumference of the circular supports 21. The fixing members 4 in this embodiment include through bolts 41 and fixing nuts 42. The through bolts 41 are arranged along the length of the square pile joint 1 and pass through the two circular supports 21 in sequence, so that the two circular supports 21 can rotate synchronously, improving the consistency of the flipping angles of the two square pile joints 1 and effectively preventing cracking of the welds during the flipping process. The fixing nut 42 is screwed on one end of the through bolt 41 that passes through the circular support 21. By screwing the fixing nut 42, the through bolt 41 can be prevented from detaching from the circular support 21, thereby improving the stability of the connection between the through bolt 41 and the circular support 21.
[0041] The implementation principle of Example 2 is: the through bolts 41 and the fixing nuts 42 fix the annular supports 21 on the two square pile joints 1, which can improve the rolling consistency of the two square pile joints 1 and effectively avoid weld rupture during rolling.
[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. An auxiliary device for square pile welded joint bearing capacity test, characterized by: The invention comprises support members (2) corresponding one to one to two square pile joints (1) to be welded, each support member (2) being provided with a rolling surface (22) capable of rolling, each square pile joint (1) being inserted into the support member (2), and a mounting member (3) for supporting the square pile joint (1) being provided in the support member (2).
2. The auxiliary device for square pile welded joint bearing capacity test according to claim 1, characterized in that: The support member (2) is a circular ring support (21), and the rolling surface (22) is a circumferential side surface of the circular ring support (21).
3. The auxiliary device for square pile welded joint bearing capacity test according to claim 2, characterized in that: The number of the mounting members (3) is four, and the four mounting members (3) are arranged opposite to each other in pairs along the circumference of the annular support (21), and each mounting member (3) can abut against the square pile joint (1).
4. The auxiliary device for square pile welded joint bearing capacity test according to claim 3, characterized in that: The four mounting members (3) are all in contact with the square pile joint (1) so that the center line of the square pile joint (1) is collinear with the axis of the circular ring support (21).
5. The auxiliary device for square pile welded joint bearing capacity test according to claim 3, characterized in that: The four mounting members (3) respectively correspond to the four corners of the square pile joint (1); The support member (2) comprises two connecting portions (31) arranged perpendicular to each other, each connecting portion (31) is fixedly connected to the annular support (21), and the two connecting portions (31) are respectively used to support two side surfaces at the corners of the square pile joint (1).
6. The auxiliary device for square pile welded joint bearing capacity test according to claim 5, characterized in that: A right-angle support portion (32) is connected between the two connecting portions (31) and matches the corner of the square pile joint (1).
7. The auxiliary device for square pile welded joint bearing capacity test according to claim 2, characterized in that: The annular supports (21) on two adjacent square pile joints (1) are connected and fixed via a fixing member (4).
8. The auxiliary device for square pile welded joint bearing capacity test according to claim 7, characterized in that: The fixing member (4) comprises a through bolt (41) and a fixing nut (42); the through bolt (41) is provided on the annular supports (21) on the two square pile joints (1) along the length direction of the square pile joint (1); and the fixing nut (42) is screwed on one end of the through bolt (41) passing through the annular support (21).