A pile foundation reinforcing device for highway bridge construction

Abstract

The utility model relates to the technical field of pile foundation reinforcement, disclose a kind of pile foundation reinforcement device for highway bridge construction, including two groups of symmetric distribution U-shaped frame, further include: fixed base, integrally formed in the bottom of the U-shaped frame, the fixed base is used to the U-shaped frame support and fixed;The utility model is by screwing the adjusting bolt on the three sides of U-shaped frame outside, and between the side of abutting plate and opening groove is formed positioning by positioning tension spring, when the end of adjusting bolt and the side of abutting plate abut, the positioning sleeve of the side of abutting plate slides outside fixed sleeve, so that the abutting plate can be extended from opening groove to the inner wall of U-shaped pad, so that after adjusting bolt thread is screwed a certain number of turns, the abutting plate can be positioned, and the abutting plate can be fastened together between U-shaped pad and square pile foundation, so as to compensate the gap between square pile foundation and U-shaped pad, provide stability support effect to the outside of square pile foundation.

Description

Technical Field

[0001] This utility model relates to the field of pile foundation reinforcement technology, specifically a pile foundation reinforcement device for highway bridge construction. Background Technology

[0002] Most highway bridges rely on pile foundations for load-bearing capacity. Therefore, the strength of the pile foundations directly affects the safety of highway bridges. Reinforcing devices are usually installed on the outside of the cast-in-place pile foundations to further strengthen and stabilize them. At the same time, the reinforcing devices can also prevent corrosion of the cast-in-place pile foundations.

[0003] For example, Chinese Patent Publication No. CN222730524U discloses a pile foundation reinforcement device for highway bridge construction, including two base plates, two square frames, and four arc-shaped bushings. Both base plates are provided with fixing holes, and fixing wedges are inserted into the fixing holes. The two square frames are correspondingly set on the two base plates. Both side walls of the square frames are provided with connecting flanges, and the connecting flanges are provided with connecting holes. Two arc-shaped bushings are detachably connected in each square frame. The two arc-shaped bushings are located at the upper and lower parts of the square frame, respectively. The outer side of the arc-shaped bushing matches the inner side of the square frame. The inner side of the arc-shaped bushing forms a semi-circular groove. The arc-shaped bushings on the two square frames abut each other, and the two semi-circular grooves are joined to form a circular hole. The connecting flanges are connected and fixed by bolts passing through the connecting holes.

[0004] The cited document states that square and circular pile foundations can be reinforced by disassembling and installing the arc-shaped liner, respectively. This allows the same device to meet the reinforcement requirements of two types of pile foundations without the need to manufacture two separate devices, thus reducing manufacturing costs.

[0005] However, when the aforementioned highway bridge construction pile foundation reinforcement device is used, due to differences in construction during the processing of the pile foundation, there are differences in the pouring around the square pile foundation, resulting in a tilt on the surface. After the two sets of frames are clamped on the outside of the square pile foundation, a certain gap is required between the frame of the customized reinforcement device and the square pile foundation before assembly, which reduces the stability of the pile foundation reinforcement. Furthermore, after the reinforcement device is assembled on the outside of the square pile foundation with multiple sets of bolts, it is exposed to the outside without protection, which leads to severe corrosion and premature aging over time. Utility Model Content

[0006] The purpose of this utility model is to provide a pile foundation reinforcement device for highway bridge construction. After clamping the external part of the square pile foundation, it can be finely adjusted so that it can fit tightly with the external part of the square pile foundation, providing stability support for the external part of the square pile foundation. In addition, the multiple sets of threaded parts assembled on the external part of the reinforcement device play a blocking and protective role, avoiding direct exposure to the outside and excessive aging problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a pile foundation reinforcement device for highway bridge construction, comprising two sets of symmetrically distributed U-shaped frames, and further comprising:

[0008] A fixed base is integrally formed on the bottom of the U-shaped frame, and the fixed base is used to support and fix the U-shaped frame;

[0009] The U-shaped liner block is detachably installed in the inner wall of the U-shaped frame, and the U-shaped liner block is used to reinforce the periphery of the pile foundation;

[0010] The outer protective panel is detachably installed on the outside of the U-shaped frame, and the top of the outer protective panel is integrally formed with a buckle plate.

[0011] A clamping element is installed at the middle of the inner side of the U-shaped bushing. The clamping element includes a clamping plate installed on the inner side of the U-shaped bushing. A positioning sleeve is integrally formed on the middle of the outer side of the clamping plate. A positioning tension spring is installed between the clamping plate and the U-shaped bushing. A fixing sleeve is provided inside the U-shaped bushing. An adjusting bolt is installed inside the fixing sleeve by means of threads.

[0012] Preferably, fastening bolts are threaded between the two sets of U-shaped frames. The fixed base at the bottom of one set of U-shaped frames is integrally formed with a plate, and the fixed base at the bottom of the other set of U-shaped frames is provided with a corresponding slot. The two sets of fixed bases are positioned by interlocking the plate with the slot.

[0013] Preferably, the outer side of the U-shaped bushing is fixedly connected with a through threaded shaft, the outer end of the through threaded shaft extends movably to the outside of the corresponding U-shaped frame, and a nut sleeve is installed on the outer end of the through threaded shaft located on the U-shaped frame.

[0014] Preferably, the inner wall of the outer protective plate has a U-shaped structure, and a buckle groove is provided at the top edge of the U-shaped frame. The edge of the buckle plate is engaged in the inner wall of the buckle groove, and a fixing bolt is threaded between the top of the buckle plate and the buckle groove.

[0015] Preferably, the inner side of the U-shaped liner is provided with an opening groove, the abutting plate is located in the inner wall of the opening groove, and a metal corrugated sleeve is fixedly installed between the outer periphery of the abutting plate and the inner wall of the opening groove.

[0016] Preferably, the positioning tension spring is fixedly installed between the abutment plate and the inner wall of the opening groove, and the fixing sleeve is integrally formed in the inner wall of the opening groove.

[0017] Preferably, the positioning sleeve on the outer side of the abutment plate is movably fitted onto the fixed sleeve, and a stop block is integrally formed on one end of the fixed sleeve near the abutment plate, the stop block being used to prevent the positioning sleeve from falling off.

[0018] Preferably, the U-shaped frame has a threaded opening on its exterior, which extends into the interior of the corresponding fixing sleeve, and the end of the adjusting bolt is used to abut against the side of the abutment plate.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This invention utilizes adjusting bolts on three outer sides of the U-shaped frame. The side of the abutment plate is positioned by a positioning spring. When the end of the adjusting bolt is pressed against the side of the abutment plate, the positioning sleeve on the side of the abutment plate slides outside the fixed sleeve, allowing the abutment plate to extend from the opening slot into the inner wall of the U-shaped liner. After the adjusting bolt is turned a certain number of times, the abutment plate is positioned. The abutment plate can then securely connect the U-shaped liner and the square pile foundation, thereby compensating for the gap between the square pile foundation and the U-shaped liner and providing stability support to the outside of the square pile foundation.

[0021] This utility model uses two sets of U-shaped frames with outer protective plates fastened to the top grooves of the U-shaped frames via top buckles and secured with bolts. This allows the outer protective plates to completely enclose multiple sets of fastening bolts on the edges of the two sets of U-shaped frames, as well as the threaded parts of the threaded components between the U-shaped frames and the U-shaped bushings, thus protecting these threaded components from direct exposure to the external environment. This effectively reduces erosion and aging caused by natural factors such as wind and rain. In addition, the design of the outer protective plates enhances the aesthetics of the overall device and provides a certain degree of impact resistance, further enhancing the durability and safety of the pile foundation reinforcement device. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the assembly structure of the outer and inner protective plates and the U-shaped frame in this utility model;

[0024] Figure 3 This is a schematic diagram of the assembly structure of the through-threaded shaft and the nut sleeve in this utility model;

[0025] Figure 4 This is a schematic diagram of the U-shaped bushing structure in this utility model;

[0026] Figure 5 for Figure 2 A magnified view of the structure at point A in the middle;

[0027] Figure 6 for Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0028] In the diagram: 100, U-shaped frame; 200, fixed base; 300, U-shaped bushing; 400, outer protective plate; 500, clamping part; 11, fastening bolt; 12, snap groove; 21, insert plate; 31, through threaded shaft; 32, nut sleeve; 33, opening groove; 41, snap plate; 42, fixing bolt; 51, clamping plate; 52, metal corrugated sleeve; 53, positioning tension spring; 54, fixing sleeve; 55, adjusting bolt; 511, positioning sleeve; 541, stop block; 551, threaded opening. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Please see Figure 1-6 This utility model provides a technical solution: a pile foundation reinforcement device for highway bridge construction, comprising two sets of symmetrically distributed U-shaped frames 100, and further comprising:

[0031] The fixed base 200 is integrally formed at the bottom of the U-shaped frame 100. The fixed base 200 is used to support and fix the U-shaped frame 100.

[0032] U-shaped liner 300 is detachably installed in the inner wall of U-shaped frame 100. U-shaped liner 300 is used to reinforce the periphery of the pile foundation.

[0033] The outer protective plate 400 is detachably installed on the outside of the U-shaped frame 100, and the top of the outer protective plate 400 is integrally formed with a buckle plate 41.

[0034] A clamping element 500 is installed at the middle of the inner side of the U-shaped bushing 300. The clamping element 500 includes a clamping plate 51 installed on the inner side of the U-shaped bushing 300. A positioning sleeve 511 is integrally formed on the middle of the outer side of the clamping plate 51. A positioning tension spring 53 is installed between the clamping plate 51 and the U-shaped bushing 300. A fixing sleeve 54 is provided inside the U-shaped bushing 300. An adjusting bolt 55 is installed inside the fixing sleeve 54 by means of threads.

[0035] The two sets of U-shaped frames 100 are connected by threaded fastening bolts 11 on their sides. The bottom of the fixed base 200 of one set of U-shaped frames 100 is integrally formed with insert plates 21 at its end. The bottom of the fixed base 200 of the other set of U-shaped frames 100 is provided with corresponding slots. The two sets of fixed bases 200 are positioned by inserting the insert plates 21 into the slots. The two sets of U-shaped frames 100 and the fixed bases 200 are integrally formed. When clamped on the outside of the square pile foundation, the ends of the two sets of semi-circular fixed bases 200 are fixed by inserting the insert plates 21 into the corresponding slots. Then, the top of the fixed bases 200 can be fixed to the ground by bolts or ground cones and other fasteners. The sides of the two sets of U-shaped frames 100 are respectively threaded together by multiple sets of fastening bolts 11.

[0036] Among them, the outer side of the U-shaped bushing 300 is fixedly connected with a through threaded shaft 31. The outer end of the through threaded shaft 31 is movably connected to the outside of the corresponding U-shaped frame 100. The outer end of the through threaded shaft 31 is equipped with a nut sleeve 32 by thread. After the U-shaped bushing 300 passes through the U-shaped frame 100 through the external through threaded shaft 31, the nut sleeve 32 can be used to lock and fix the outside of the U-shaped frame 100, thereby realizing the assembly of the U-shaped bushing 300.

[0037] The outer protective plate 400 has a U-shaped inner wall structure. A buckle groove 12 is provided at the top edge of the U-shaped frame 100. The edge of the buckle plate 41 is snapped into the inner wall of the buckle groove 12. A fixing bolt 42 is threaded between the top of the buckle plate 41 and the buckle groove 12. The outer protective plates 400 of the two sets of U-shaped frames 100 are snapped into the buckle groove 12 at the top of the U-shaped frame 100 by the top buckle plate 41 and fixed by the fixing bolt 42. This allows the outer protective plate 400 to cover the multiple sets of fastening bolts 11 at the edges of the two sets of U-shaped frames 100 and the threaded parts of the threaded parts between the U-shaped frame 100 and the U-shaped bushing 300 for protection.

[0038] The U-shaped liner 300 has an opening groove 33 on its inner side. The abutment plate 51 is located in the inner wall of the opening groove 33. A metal corrugated sleeve 52 is fixedly installed between the outer periphery of the abutment plate 51 and the inner wall of the opening groove 33. The metal corrugated sleeve 52 can seal the abutment plate 51 and the inner wall of the opening groove 33 together. In this way, when the abutment plate 51 extends from the opening groove 33 into the inner wall of the U-shaped liner 300, the metal corrugated sleeve 52 can seal the opening groove 33.

[0039] The positioning spring 53 is fixedly installed between the abutment plate 51 and the inner wall of the opening groove 33. The fixing sleeve 54 is integrally formed in the inner wall of the opening groove 33. The positioning sleeve 511 on the outside of the abutment plate 51 is movably sleeved on the fixing sleeve 54. The fixing sleeve 54 has a stop block 541 integrally formed at one end near the abutment plate 51. The stop block 541 is used to prevent the positioning sleeve 511 from falling off. The U-shaped frame 100 has a threaded opening 551 on the outside. The threaded opening 551 extends into the corresponding fixing sleeve 54. The end of the adjusting bolt 55 is used to abut the side of the abutment plate 51. By turning the adjusting bolts 55 on the three sides of the outside of the U-shaped frame 100, the side of the abutment plate 51 and the opening groove 33 are positioned by the positioning spring 53. When the end of the adjusting bolt 55 abuts the side of the abutment plate 51, the positioning sleeve 511 on the side of the abutment plate 51 slides outside the fixing sleeve 54, so that the abutment plate 51 can extend from the opening groove 33 into the inner wall of the U-shaped liner 300.

[0040] In this embodiment, the two sets of U-shaped frames 100 and the fixed base 200 are integrally formed. When clamped on the outside of the square pile foundation, the ends of the two sets of semi-circular fixed bases 200 are fixed by inserting plates 21 into corresponding slots. Then, the top of the fixed base 200 can be fixed to the ground by bolts or ground cones and other fasteners. The sides of the two sets of U-shaped frames 100 are respectively fixed together by multiple sets of fastening bolts 11, thereby wrapping and protecting the outside of the pile foundation. The assembly of the U-shaped frame 100 and the fixed base 200 in this pile foundation reinforcement device is the prior art and will not be described in detail here.

[0041] In this embodiment, after the U-shaped liner 300 passes through the U-shaped frame 100 via the external threaded shaft 31, the U-shaped frame 100 can be locked and fixed externally by the nut sleeve 32, thereby realizing the assembly of the U-shaped liner 300. Since the U-shaped liner 300 is fitted onto the outside of the square pile foundation, and the flatness of the outer surface of the square pile foundation varies during the pouring construction, there is a certain tilt surface. The U-shaped liner 300 is a custom steel structure with a relatively flat inner surface, so there is a certain gap when it is assembled with the outside of the square pile foundation.

[0042] In this embodiment, by turning the adjusting bolts 55 on the three outer sides of the U-shaped frame 100, the side of the abutment plate 51 and the opening groove 33 are positioned by the positioning spring 53. When the end of the adjusting bolt 55 abuts against the side of the abutment plate 51, the positioning sleeve 511 on the side of the abutment plate 51 slides outside the fixing sleeve 54, thereby allowing the abutment plate 51 to extend from the opening groove 33 into the inner wall of the U-shaped bushing 300. It should be noted that abutment members 500 are provided on three sides of the inner wall of the U-shaped bushing 300, and each set of abutment members 500... The number of adjusting bolts 55, fixing sleeves 54, and positioning sleeves 511 can be increased linearly according to the length of the abutment plate 51. This allows multiple stress points to fit more tightly against the outside of the square pile foundation after the longer abutment plate 51 is adjusted. After the adjusting bolts 55 are turned a certain number of times, the abutment plate 51 can be positioned. The abutment plate 51 can fasten the U-shaped bushing 300 to the square pile foundation, thereby compensating for the gap between the square pile foundation and the U-shaped bushing 300 and providing stability support to the outside of the square pile foundation.

[0043] In this embodiment, the outer protective plates 400 of the two sets of U-shaped frames 100 are fastened to the top buckle grooves 12 of the U-shaped frames 100 by the top buckle plate 41 and fixed by the fixing bolts 42. This allows the outer protective plates 400 to cover the multiple sets of fastening bolts 11 on the edges of the two sets of U-shaped frames 100 and the threaded parts of the threaded parts between the U-shaped frames 100 and the U-shaped bushings 300, thus protecting them from direct exposure to the external environment. This effectively reduces the corrosion and aging problems caused by natural factors such as wind and rain. In addition, the design of the outer protective plates 400 can also improve the aesthetics of the overall device and has a certain anti-collision function, further enhancing the durability and safety of the pile foundation reinforcement device.

[0044] Working principle: When using the pile foundation reinforcement device for highway bridge construction, firstly, two sets of U-shaped frames 100 are clamped on the outside of the square pile foundation. Then, the ends of two sets of semi-circular fixed bases 200 are fixed by inserting plates 21 into corresponding slots. The top of the fixed bases 200 can be fixed to the ground by bolts or ground cones. The sides of the two sets of U-shaped frames 100 are respectively fixed together by multiple sets of fastening bolts 11. Then, the U-shaped bushing 300 passes through the U-shaped frame 100 through the external threaded shaft 31. The U-shaped frame 100 can be locked and fixed externally by the nut sleeve 32, thereby realizing the assembly of the U-shaped bushing 300.

[0045] Then, by turning the adjusting bolts 55 on the three outer sides of the U-shaped frame 100, the side of the abutment plate 51 and the opening groove 33 are positioned by the positioning spring 53. When the end of the adjusting bolt 55 abuts against the side of the abutment plate 51, the positioning sleeve 511 on the side of the abutment plate 51 slides outside the fixed sleeve 54, thereby allowing the abutment plate 51 to extend from the opening groove 33 into the inner wall of the U-shaped bushing 300. (It should be noted that abutment members 500 are provided on three sides of the inner wall of the U-shaped bushing 300, and the adjusting bolts 55 on each set of abutment members 500 are adjusted.) The number of bolts 55, fixing sleeves 54, and positioning sleeves 511 can be increased linearly according to the length of the clamping plate 51, so that after the adjustment of the longer clamping plate 51, there are multiple stress points and the fit with the outside of the square pile foundation is tighter. In this way, after the threads of the adjusting bolts 55 are turned a certain number of times, the clamping plate 51 can be positioned. The clamping plate 51 can fasten the U-shaped bushing 300 and the square pile foundation together, thereby compensating for the gap between the square pile foundation and the U-shaped bushing 300 and providing stability support for the outside of the square pile foundation.

[0046] Finally, the outer protective plates 400 of the two sets of U-shaped frames 100 are fastened to the top buckle grooves 12 of the U-shaped frame 100 by the top buckle plate 41 and fixed by the fixing bolts 42. This allows the outer protective plates 400 to cover the multiple sets of fastening bolts 11 on the edges of the two sets of U-shaped frames 100 and the threaded parts between the U-shaped frame 100 and the U-shaped bushing 300, thus protecting them from direct exposure to the external environment.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pile foundation reinforcement device for highway bridge construction, comprising two sets of symmetrically distributed U-shaped frames (100), characterized in that, Also includes: A fixed base (200) is integrally formed on the bottom of the U-shaped frame (100), and the fixed base (200) is used to support and fix the U-shaped frame (100); U-shaped liner (300) is detachably installed in the inner wall of the U-shaped frame (100), and the U-shaped liner (300) is used to reinforce the periphery of the pile foundation; The outer protective plate (400) is detachably installed on the outside of the U-shaped frame (100), and the top of the outer protective plate (400) is integrally formed with a buckle plate (41). A clamping element (500) is installed at the middle of the inner side of the U-shaped bushing (300). The clamping element (500) includes a clamping plate (51) installed on the inner side of the U-shaped bushing (300). A positioning sleeve (511) is integrally formed on the middle of the outer side of the clamping plate (51). A positioning tension spring (53) is installed between the clamping plate (51) and the U-shaped bushing (300). A fixing sleeve (54) is provided inside the U-shaped bushing (300). An adjusting bolt (55) is installed inside the fixing sleeve (54) by thread.

2. The pile foundation reinforcement device for highway bridge construction according to claim 1, characterized in that: Two sets of U-shaped frames (100) are connected by fastening bolts (11) through threads. The fixed base (200) at the bottom of one set of U-shaped frames (100) is integrally formed with insert plates (21), and the fixed base (200) at the bottom of the other set of U-shaped frames (100) is provided with corresponding slots. The two sets of fixed bases (200) are respectively connected to each other and positioned by inserting the insert plates (21) into the slots.

3. The pile foundation reinforcement device for highway bridge construction according to claim 2, characterized in that: The outer side of the U-shaped bushing (300) is fixedly connected with a through threaded shaft (31). The outer end of the through threaded shaft (31) extends movably to the outside of the corresponding U-shaped frame (100). The outer end of the through threaded shaft (31) located on the outside of the U-shaped frame (100) is fitted with a nut sleeve (32) by thread.

4. The pile foundation reinforcement device for highway bridge construction according to claim 3, characterized in that: The inner wall of the outer protective plate (400) is U-shaped, and a buckle groove (12) is provided at the top edge of the U-shaped frame (100). The edge of the buckle plate (41) is engaged in the inner wall of the buckle groove (12), and a fixing bolt (42) is installed between the top of the buckle plate (41) and the buckle groove (12) by thread.

5. A pile foundation reinforcement device for highway bridge construction according to claim 4, characterized in that: The inner side of the U-shaped liner (300) is provided with an opening groove (33), the abutting plate (51) is located in the inner wall of the opening groove (33), and a metal corrugated sleeve (52) is fixedly installed between the outer periphery of the abutting plate (51) and the inner wall of the opening groove (33).

6. The pile foundation reinforcement device for highway bridge construction according to claim 5, characterized in that: The positioning tension spring (53) is fixedly installed between the abutting plate (51) and the inner wall of the opening groove (33), and the fixing sleeve (54) is integrally formed in the inner wall of the opening groove (33).

7. A pile foundation reinforcement device for highway bridge construction according to claim 6, characterized in that: The positioning sleeve (511) on the outside of the abutment plate (51) is movably fitted onto the fixed sleeve (54). The fixed sleeve (54) has a stop block (541) integrally formed at one end near the abutment plate (51). The stop block (541) is used to prevent the positioning sleeve (511) from falling off.

8. A pile foundation reinforcement device for highway bridge construction according to claim 7, characterized in that: The U-shaped frame (100) has a threaded opening (551) on the outside, the threaded opening (551) extends into the corresponding fixed sleeve (54), and the end of the adjusting bolt (55) is used to press against the side of the abutment plate (51).

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