A horizontal adjustment installation structure for pier column hoisting

Abstract

This utility model relates to the field of building construction technology and aims to solve the problems of existing technologies lacking effective horizontal adjustment structures, resulting in time-consuming, inefficient, inaccurate, and easily deviated pier adjustments, posing a risk of overturning, and being insufficiently applicable to large-diameter, heavy-tonnage piers. It provides a pier hoisting horizontal adjustment installation structure, comprising an upper hoisting clamp, a lower adjustment clamp, a hoisting assembly, and a jack assembly. Both the upper and lower hoisting clamps are coaxial arc-shaped steel plate splicing structures, with their inner diameters matching the outer diameter of the pier. The splice joints of the upper and lower hoisting clamps are respectively connected by a first high-strength bolt and a second high-strength bolt. The hoisting assembly is detachably connected to the upper hoisting clamp, and the top of the jack assembly abuts against the lower adjustment clamp. The advantages of this utility model are that it possesses a horizontal adjustment structure, making pier adjustments time-saving, efficient, accurate, and less prone to deviation, eliminating the risk of overturning, and having wide applicability.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and more specifically, to a horizontal adjustment and installation structure for pier column hoisting. Background Technology

[0002] During the construction of circular hollow piers, the precast or cast-in-place piers need to be hoisted into the pre-set installation position on the pier cap using hoisting equipment to achieve precise connection between the pier and the pier cap. Currently, the commonly used hoisting method in the industry is to use one or two sets of clamps to fix the piers. The upper clamp is mainly used for hoisting force, while the lower clamp helps to fix the posture of the pier.

[0003] However, existing technologies have significant drawbacks. The lower clamp only has lifting points and lacks an effective horizontal adjustment structure. After the pier is hoisted into the foundation, if problems such as deviation between the pier axis and the foundation installation baseline or non-level contact between the pier bottom and the foundation surface occur, repeated fine-tuning with hoisting equipment or manual adjustment with tools such as crowbars and shims is required. This process is not only time-consuming and inefficient, but also difficult to control the precision of manual adjustment, which can easily lead to excessive pier installation deviations and affect project quality. At the same time, the pier's stability is poor during repeated adjustments, posing a risk of overturning and threatening construction safety. Furthermore, the limitations of existing adjustment methods are even more pronounced for large-diameter, heavy-tonnage circular hollow piers, failing to meet the requirements of efficient, precise, and safe construction. Utility Model Content

[0004] The present invention aims to provide a horizontal adjustment and installation structure for pier hoisting, in order to solve the problems of existing technologies that lack effective horizontal adjustment structures, resulting in time-consuming and inefficient pier adjustment, poor accuracy, easy deviation, risk of overturning, and insufficient applicability to large-diameter heavy-tonnage piers.

[0005] The embodiments of this utility model are implemented as follows: This utility model embodiment provides a horizontal adjustment and installation structure for pier column hoisting, which includes an upper hoisting clamp, a lower adjustment clamp, a hoisting component, and a jack component; The aforementioned upper hoisting clamp and the aforementioned lower adjusting clamp are both coaxial arc-shaped steel plate splicing structures, and the inner diameter of the aforementioned upper hoisting clamp and the aforementioned lower adjusting clamp are adapted to the outer diameter of the pier column. The joints of the upper hoisting clamp and the lower adjusting clamp are respectively connected by a first high-strength bolt and a second high-strength bolt; The aforementioned hoisting assembly is detachably connected to the aforementioned upper hoisting clamp, and the top of the aforementioned jack assembly abuts against the aforementioned lower adjusting clamp.

[0006] In use, first, the two arc-shaped steel plate splicing structures of the upper lifting clamp are fitted onto the upper part of the pier column, and the splice of the upper lifting clamp is tightened with the first high-strength bolt to ensure a tight fit between the upper lifting clamp and the pier column; then, the two arc-shaped steel plate splicing structures of the lower adjusting clamp are fitted onto the lower part of the pier column, and the splice of the lower adjusting clamp is tightened with the second high-strength bolt; then, the lifting assembly is detachably connected to the upper lifting clamp, and the pier column is lifted with the help of lifting equipment and slowly lowered to the vicinity of the preset installation position on the pier cap; finally, the lower adjusting clamp is placed... The top of the aforementioned jack assembly is brought into contact with the pre-embedded steel plate or temporary support structure on the top of the pier cap. The horizontal deviation of the pier column is detected by a level instrument, and the corresponding jack assembly is operated to extend and retract to adjust the horizontal position of the pier column until the horizontality of the pier column and the deviation of its axis from the pier cap baseline meet the design requirements. Finally, grouting material is filled between the pier column and the pier cap or a fixing connector is installed. After the fixing structure is stable, the aforementioned jack assembly is removed, and then the aforementioned first high-strength bolt and the aforementioned second high-strength bolt are loosened respectively. The aforementioned upper lifting clamp and the aforementioned lower adjusting clamp are removed to complete the installation of the circular hollow pier column.

[0007] The pier hoisting horizontal adjustment installation structure disclosed in this embodiment includes the aforementioned upper hoisting clamp, lower adjustment clamp, hoisting components, and jack components. The upper hoisting clamp is secured to the arc-shaped plate via the first high-strength bolt to stably bear the weight of the hoisting pier. The lower adjustment clamp is connected via the second high-strength bolt and is equipped with the aforementioned jack components. On one hand, it enables horizontal fine-tuning of the pier in a 360° direction with an accuracy of ±1mm using four evenly distributed jack components, solving the problem of low adjustment accuracy after the pier is positioned in existing technologies. On the other hand, the coordinated use of the upper and lower clamps... The design, featuring a detachable connection, simplifies the installation of clamps and the docking process of hoisting components, shortening the installation and adjustment time for individual piers. It also allows for the replacement of different sizes of the upper hoisting clamps or the lower adjusting clamps with corresponding diameters to meet the hoisting and adjustment needs of circular hollow piers. Simultaneously, it avoids the problems of poor pier stability and high overturning risk caused by repeated adjustments. This design balances construction efficiency, adjustment accuracy, structural safety, and adaptability flexibility, resulting in a pier hoisting horizontal adjustment installation structure that offers the advantages of horizontal adjustment, time-saving and efficient pier adjustment, high accuracy, minimal deviation, no overturning risk, and wide applicability.

[0008] Optionally: the above-mentioned upper hoisting clamp has a first upper arc plate and a second upper arc plate that are symmetrically distributed. One end of the first upper arc plate and the second upper arc plate are hinged to each other, and the other end of the first upper arc plate and the second upper arc plate are connected by the first high-strength bolt.

[0009] This design offers several advantages. First, the hinged joint allows for more flexible opening and closing of the upper lifting clamp, enabling quick application to the upper part of the circular hollow pier without requiring overall disassembly or cumbersome alignment. This significantly simplifies the installation process and saves time. Second, the connection at the other end via the first high-strength bolt allows for precise adjustment of the fit between the first and second upper arc plates. This ensures a tight fit between the upper lifting clamp and piers of different outer diameters (within the applicable range), preventing pier displacement due to loosening of the upper lifting clamp during lifting. Simultaneously, the first high-strength bolt guarantees the overall load-bearing stability of the upper lifting clamp, adapting to the lifting needs of piers ranging from 50t to 200t, balancing ease of installation with structural reliability.

[0010] Optionally, the outer sides of the first upper arc-shaped plate and the second upper arc-shaped plate are uniformly provided with a first upper lifting lug, a second upper lifting lug, a third upper lifting lug, and a fourth upper lifting lug along the circumferential direction, and the lifting assembly is detachably connected to the first upper lifting lug, the second upper lifting lug, the third upper lifting lug, and the fourth upper lifting lug.

[0011] This configuration, with its four evenly distributed upper lifting lugs (first, second, third, and fourth), ensures that the lifting force is evenly distributed along the circumference of the pier, preventing tilting and deformation of the pier due to single-point or asymmetrical force, thus guaranteeing structural stability during the pier hoisting process. Furthermore, the detachable connection design of the hoisting components facilitates quick docking of the components with the lifting lugs before hoisting and allows for easy removal of the components after the pier is in place, without affecting subsequent horizontal adjustment operations of the lower control clamps.

[0012] Optionally: the lower adjustable clamp has a first lower arc plate and a second lower arc plate that are symmetrically distributed. One end of the first lower arc plate and the second lower arc plate are hinged to each other, and the other end of the first lower arc plate and the second lower arc plate are connected by the second high-strength bolt.

[0013] This design offers several advantages. First, the hinged joint allows for flexible opening and closing of the lower adjustable clamp, enabling it to be quickly fitted onto the corresponding position on the lower part of the circular hollow pier without requiring overall disassembly or complex alignment, significantly simplifying the installation process and saving construction time. Second, the connection at the other end via the second high-strength bolt allows for precise adjustment of the fit between the first and second lower arc plates, ensuring a tight fit between the clamp and piers of different specifications within the outer diameter range. This prevents the lower adjustable clamp from becoming loose during horizontal adjustment, thus maintaining accuracy. Simultaneously, the second high-strength bolt ensures that the lower adjustable clamp can withstand the jack's adjustment force and part of the pier's weight, maintaining structural stability and adapting to the pier's construction requirements, thus balancing ease of operation with structural reliability.

[0014] Optionally, the outer sides of the first lower arc-shaped plate and the second lower arc-shaped plate are uniformly provided with a first lower lifting point, a second lower lifting point, a third lower lifting point and a fourth lower lifting point along the circumferential direction. The first lower lifting point, the second lower lifting point, the third lower lifting point and the fourth lower lifting point correspond to the first upper lifting lug, the second upper lifting lug, the third upper lifting lug and the fourth upper lifting lug, respectively.

[0015] This configuration, with the first, second, third, and fourth lower lifting points arranged vertically and evenly, ensures that the lifting force forms a symmetrical and balanced force system across the upper and lower parts of the pier. This prevents the pier from tilting or twisting due to force imbalance during lifting, ensuring the stability of the pier's lifting posture and reducing the risk of overturning. Furthermore, the symmetrical lifting point design not only assists the upper lifting clamps in achieving stable lifting and lowering of the pier during lifting, but also avoids interfering with the operation of the jack components during subsequent horizontal adjustment. Additionally, the lower adjustment clamps are easy to disassemble and transport, greatly improving overall construction efficiency.

[0016] Optionally, a first jack support, a second jack support, a third jack support, and a fourth jack support are uniformly welded to the outer sides of the first lower arc plate and the second lower arc plate along the circumferential direction. The first jack support, the second jack support, the third jack support, and the fourth jack support are respectively located at the midpoint between adjacent first lower lifting points, second lower lifting points, third lower lifting points, and fourth lower lifting points. The bottom surface of each of the jack supports abuts against the jack assembly.

[0017] This configuration, with four evenly distributed jack supports (first, second, third, and fourth) located at the midpoints of adjacent lifting points, ensures that the adjusting force applied by the jack assembly is evenly distributed along the circumference of the pier. Combined with the telescoping of the jack assembly, this allows for horizontal fine-tuning of the pier in a 360° direction with an accuracy of ±1mm, effectively solving the problem of low adjustment precision in existing technologies and meeting high-standard docking requirements. Furthermore, the welding fixing method ensures that the first, second, third, and fourth jack supports do not shift when subjected to adjusting forces, guaranteeing structural stability during pier adjustment and avoiding the risk of overturning. Simultaneously, by replacing the first and second lower arc plates with different sizes and models, the requirements for piers of different diameters can be met without additional adjustment of the support positions, balancing adjustment precision, structural reliability, and adaptability.

[0018] Optionally: The jack assembly has a jack body, and the bottom surfaces of the first jack support, the second jack support, the third jack support and the fourth jack support are all provided with mounting grooves, and the top end of the telescopic rod of the jack body abuts against the mounting groove.

[0019] With this configuration, the mounting slot can precisely limit the telescopic rod of the jack body, preventing the jack body from shifting or deviating due to force during the horizontal adjustment of the pier column. This ensures that the adjustment force applied by the jack body acts stably on the support, guaranteeing a horizontal fine-tuning effect with an accuracy of ±1mm in the 360° direction.

[0020] Optionally: The grooves of the above-mentioned mounting slots are all provided with anti-slip textures.

[0021] This design increases the friction between the top of the telescopic rod of the jack body and the inner wall of the mounting groove, preventing relative sliding between the telescopic rod and the mounting groove during the horizontal adjustment of the pier column. This ensures that the adjustment force is accurately transmitted to the lower adjustment clamp, guaranteeing a horizontal fine-tuning accuracy of ±1mm in the 360° direction of the pier column. It also solves the problem of loss of accuracy due to component slippage in existing adjustment methods. In addition, the anti-slip texture does not require additional fixing structures and does not affect the ease of disassembly and assembly of the jack components, thus balancing structural adaptability and ease of construction operation.

[0022] Optionally: The mounting groove is provided on both sides for fixing the jack body.

[0023] This configuration, achieved by tightening the aforementioned jack body with the knob and the aforementioned tightening bolt, further restricts the displacement of the jack body during adjustment. Combined with the aforementioned mounting groove and the aforementioned anti-slip texture, it forms a double fixation, ensuring the jack body remains stable when bearing the weight of the pier or applying telescopic force. This guarantees the pier's horizontal fine-tuning accuracy of ±1mm in the 360° direction, preventing adjustment deviations due to loosening of the jack body. Furthermore, the design of the aforementioned tightening bolt allows for adaptation to different specifications of the jack body, and the bolt adjustment operation is convenient, neither affecting the quick assembly and disassembly of the jack components nor interfering with the replacement of different models of the aforementioned lower control clamp.

[0024] Optionally: the above-mentioned lifting assembly has a hook, the lower part of the hook is connected to a lifting beam, and the bottom two ends of the lifting beam are respectively connected to a first lifting rope and a second lifting rope, and the first lifting rope and the second lifting rope are detachably fixed to the first upper lifting lug, the second upper lifting lug, the third upper lifting lug, or the fourth upper lifting lug.

[0025] This configuration, with the aforementioned lifting beam paired with the first and second lifting ropes, disperses the lifting force. Combined with the even distribution of the four upper lifting lugs, this further ensures balanced force during pier lifting, preventing tilting or localized deformation and guaranteeing stable lifting posture. Furthermore, the detachable design of the first and second lifting ropes allows for flexible selection of the corresponding lifting lugs based on the pier's actual outer diameter, adapting to the adjustment requirements of the clamps. It also enables quick removal of the lifting components after the pier is in place, without interfering with subsequent horizontal adjustment operations of the lower clamps. Simultaneously, it simplifies the assembly process before lifting and the disassembly process after lifting, improving construction efficiency while balancing lifting stability, adaptability, and ease of operation.

[0026] Optionally, the first jack support, the second jack support, the third jack support, and the fourth jack support mentioned above are all rectangular steel blocks, which are welded and fixed to the lower adjusting clamp mentioned above.

[0027] This design results in a rectangular steel block structure with high strength and stable load-bearing capacity, reliably withstanding the force applied by the jack body when adjusting the pier column. This avoids the deformation of the support affecting the adjustment accuracy and ensures a ±1mm horizontal fine-tuning effect in the pier column's 360° direction. In addition, the welding fixing method ensures that the first, second, third, and fourth jack supports form a stable whole with the lower adjustment clamp, preventing displacement of the first, second, third, and fourth jack supports during adjustment. This further enhances structural stability and reduces the risk of pier column overturning. At the same time, the rectangular steel block is easy to process, and the welding fixing does not interfere with the lower adjustment clamp's ability to adapt to pier columns of different diameters by changing different sizes and models, thus balancing structural reliability, construction safety, and adaptability flexibility.

[0028] Optionally: The aforementioned upper hoisting clamp is fitted onto the upper part of the pier, and the height of the fitting position from the top of the pier is one-quarter to one-third of the height of the pier.

[0029] This configuration ensures that the point of application of the lifting force and the center of gravity of the pier are in a reasonable force relationship, preventing the lower part of the pier from swaying due to being too high or the upper part from tilting due to being too low. This ensures the stability of the pier during the lifting process and reduces the risk of overturning. In addition, this mounting position, together with the installation position of the lower regulating clamp at the bottom of the pier, provides coordinated support from top to bottom. This does not interfere with the jack assembly's control of the pier's horizontal position, and it can also work with the lower regulating clamp to maintain the overall stability of the pier during the control phase.

[0030] Optionally, the aforementioned lower regulating clamp is fitted onto the lower part of the pier column, and the fitting position is located above the part of the pier column embedded in the foundation.

[0031] This configuration allows the lower adjusting clamp to avoid obstructing the space of the jack assembly by the pier cap, ensuring that the jack bodies on the first, second, third, and fourth jack supports can smoothly contact the pre-embedded steel plate or temporary support structure on the top of the pier cap. This provides stable force support for the horizontal adjustment of the pier column and ensures an adjustment accuracy of ±1mm in the 360° direction. In addition, this mounting position, together with the installation position of the upper lifting clamp on the upper part of the pier column, forms a support system that echoes each other. This system can help maintain the stability of the pier column's posture during the lifting stage and can also accurately adjust the horizontal position of the pier column through the jack bodies during the adjustment stage.

[0032] Optionally, both the upper hoisting clamp and the lower adjusting clamp mentioned above are made of high-strength steel plate.

[0033] With this configuration, the high-strength steel plate possesses excellent load-bearing capacity and structural stability, reliably bearing the lifting weight of 50t to 200t pier columns and the force exerted during the adjustment of the aforementioned jack body. This prevents deformation or breakage of the aforementioned upper lifting clamp and the aforementioned lower adjustment clamp during construction, ensuring the structural safety of the lifting and horizontal adjustment process.

[0034] In summary, the pier hoisting horizontal adjustment installation structure disclosed in this utility model has the beneficial effects of having a horizontal adjustment structure, saving time and efficiency in pier adjustment, high precision, not easy to deviate, no risk of overturning, and wide applicability. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of a horizontal adjustment and installation structure for pier hoisting in an embodiment of this utility model; Figure 2 This is a top view of the upper hoisting clamp in an embodiment of this utility model; Figure 3 This is a top view of the lower adjustable clamp in an embodiment of this utility model; Figure 4 This is an embodiment of the present utility model. Figure 1 Enlarged diagram of point A in the middle.

[0037] Icons: 1-Upper lifting clamp, 2-Lower adjustable clamp, 3-Lifting assembly, 4-Jack assembly, 5-First high-strength bolt, 6-Second high-strength bolt, 7-First upper arc plate, 8-Second upper arc plate, 9-First upper lifting lug, 10-Second upper lifting lug, 11-Third upper lifting lug, 12-Fourth upper lifting lug, 13-First lower arc plate, 14-Second lower arc plate, 15-First Lower lifting point, 16-Second lower lifting point, 17-Third lower lifting point, 18-Fourth lower lifting point, 19-First jack support, 20-Second jack support, 21-Third jack support, 22-Fourth jack support, 23-Jack body, 24-Mounting groove, 25-Anti-slip texture, 26-Tightening bolt, 27-Hook, 28-Lifting beam, 29-First lifting rope, 30-Second lifting rope. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0040] Example See Figure 1 , Figure 2 , Figure 3 and Figure 4 This embodiment proposes a horizontal adjustment installation structure for pier column hoisting, including an upper hoisting clamp 1, a lower adjustment clamp 2, a hoisting assembly 3, and a jack assembly 4; Both the upper hoisting clamp 1 and the lower adjusting clamp 2 are coaxial arc-shaped steel plate splicing structures, and the inner diameter of the upper hoisting clamp 1 and the lower adjusting clamp 2 are adapted to the outer diameter of the pier column. The joint between the upper hoisting clamp 1 and the lower adjusting clamp 2 is connected by a first high-strength bolt 5 and a second high-strength bolt 6, respectively. The hoisting assembly 3 is detachably connected to the upper hoisting clamp 1, and the top of the jack assembly 4 abuts against the lower regulating clamp 2.

[0041] In use, first, the two arc-shaped steel plate splicing structures of the upper lifting clamp 1 are fitted onto the upper part of the pier column, and the splice of the upper lifting clamp 1 is tightened with the first high-strength bolt 5 to ensure that the upper lifting clamp 1 fits tightly with the pier column; then, the two arc-shaped steel plate splicing structures of the lower adjusting clamp 2 are fitted onto the lower part of the pier column, and the splice of the lower adjusting clamp 2 is tightened with the second high-strength bolt 6; then, the lifting assembly 3 is detachably connected to the upper lifting clamp 1, and the pier column is lifted with the help of lifting equipment and slowly lowered to the vicinity of the preset installation position on the pier cap; then, the lower adjusting clamp 2 is placed... The top of the jack assembly 4 is brought into contact with the pre-embedded steel plate or temporary support structure on the top of the pier cap. The horizontal deviation of the pier column is detected by a level instrument, and the corresponding jack assembly 4 is operated to extend and retract to adjust the horizontal position of the pier column until the horizontality of the pier column and the deviation of its axis from the pier cap baseline meet the design requirements. Finally, grouting material is filled between the pier column and the pier cap or fixed connecting parts are installed. After the fixed structure is stable, the jack assembly 4 is removed, and the first high-strength bolt 5 and the second high-strength bolt 6 are loosened respectively. The upper hoisting clamp 1 and the lower adjusting clamp 2 are removed to complete the installation of the circular hollow pier column.

[0042] The proposed pier hoisting horizontal adjustment installation structure includes an upper hoisting clamp 1, a lower adjustment clamp 2, a hoisting assembly 3, and a jack assembly 4. The upper hoisting clamp 1 is secured to the arc-shaped plate via a first high-strength bolt 5 to stably bear the weight of the hoisted pier. The lower adjustment clamp 2 is secured via a second high-strength bolt 6 and is equipped with the jack assembly 4. This structure allows for precise horizontal adjustments of the pier in a 360° direction with an accuracy of ±1mm using four evenly distributed jack assemblies 4, solving the problem of low adjustment accuracy after the pier is positioned in existing technologies. Furthermore, the coordinated operation of the upper and lower clamps and their detachable design... The connection design simplifies the process of installing the clamps and connecting with the hoisting components 3, shortening the installation and adjustment time of a single pier column. It also allows for the adaptation of different sizes of upper hoisting clamps 1 or lower adjusting clamps 2 to circular hollow pier columns of corresponding diameters, meeting the hoisting and adjustment needs of the pier columns. At the same time, it avoids the problems of poor pier column stability and high overturning risk caused by repeated adjustments. It takes into account construction efficiency, adjustment accuracy, structural safety and adaptability flexibility, thus making a pier column hoisting horizontal adjustment installation structure have the beneficial effects of having a horizontal adjustment structure, saving time and efficiency in pier column adjustment, high accuracy, not easy to deviate, no overturning risk and wide applicability.

[0043] See Figure 1 , Figure 2 , Figure 3 and Figure 4The upper lifting clamp 1 has symmetrically distributed first upper arc-shaped plates 7 and second upper arc-shaped plates 8. One end of the first upper arc-shaped plates 7 and the second upper arc-shaped plates 8 are hinged to each other, and the other ends of the first upper arc-shaped plates 7 and the second upper arc-shaped plates 8 are connected by a first high-strength bolt 5. On the one hand, the hinged design makes the upper lifting clamp 1 more flexible in opening and closing, and can be quickly fitted onto the upper part of the circular hollow pier column without the need for overall disassembly or cumbersome alignment, which greatly simplifies the installation operation process of the upper lifting clamp 1 and saves installation costs. On the one hand, the other end is connected by the first high-strength bolt 5, which can precisely adjust the fit of the first upper arc plate 7 and the second upper arc plate 8 to ensure that the upper hoisting clamp 1 fits tightly with the piers of different outer diameters (within the applicable range), so as to avoid the piers shifting due to the loosening of the upper hoisting clamp 1 during hoisting. At the same time, the first high-strength bolt 5 can ensure the overall load-bearing stability of the upper hoisting clamp 1, adapting to the hoisting needs of piers with a tonnage of 50t to 200t, taking into account both the convenience of installation and the structural reliability.

[0044] The outer sides of the first upper arc plate 7 and the second upper arc plate 8 are evenly provided with a first upper lifting lug 9, a second upper lifting lug 10, a third upper lifting lug 11, and a fourth upper lifting lug 12 along the circumferential direction. The lifting assembly 3 is detachably connected to the first upper lifting lug 9, the second upper lifting lug 10, the third upper lifting lug 11, and the fourth upper lifting lug 12. The four evenly distributed first upper lifting lugs 9, the second upper lifting lug 10, the third upper lifting lug 11, and the fourth upper lifting lug 12 can ensure that the lifting force is evenly transmitted along the circumferential direction of the pier column, avoiding the tilting and deformation of the pier column caused by single point or asymmetrical force, and ensuring the structural stability of the pier column during the lifting process. In addition, the detachable connection design of the lifting assembly 3 not only facilitates the quick docking of the assembly with the lifting lugs before lifting, but also allows the assembly to be easily removed after the pier column is lifted into place, without affecting the subsequent horizontal adjustment operation of the lower control clamp 2.

[0045] See Figure 1 , Figure 2 , Figure 3 and Figure 4The lower adjustable clamp 2 has a symmetrically distributed first lower arc plate 13 and second lower arc plate 14. One end of the first lower arc plate 13 and the second lower arc plate 14 are hinged to each other, and the other end of the first lower arc plate 13 and the second lower arc plate 14 are connected by a second high-strength bolt 6. On the one hand, the hinged design allows the lower adjustable clamp 2 to open and close flexibly, and can be quickly fitted to the corresponding position at the bottom of the circular hollow pier without the need for overall disassembly or complex alignment, which greatly simplifies the installation process and saves construction time. On the other hand, the connection of the other end by the second high-strength bolt 6 can precisely adjust the fit of the first lower arc plate 13 and the second lower arc plate 14, ensuring that the clamp fits tightly with piers of different specifications within the outer diameter range, avoiding the adjustment accuracy affected by the loosening of the lower adjustable clamp 2 during horizontal adjustment. At the same time, the second high-strength bolt 6 can ensure that the lower adjustable clamp 2 can withstand the adjustment force of the jack and part of the weight of the pier, maintain structural stability, adapt to the construction requirements of the pier, and take into account both ease of operation and structural reliability.

[0046] The outer sides of the first lower arc-shaped plate 13 and the second lower arc-shaped plate 14 are evenly provided with a first lower lifting point 15, a second lower lifting point 16, a third lower lifting point 17, and a fourth lower lifting point 18 along the circumferential direction. The first lower lifting point 15, the second lower lifting point 16, the third lower lifting point 17, and the fourth lower lifting point 18 correspond to the first upper lifting lug 9, the second upper lifting lug 10, the third upper lifting lug 11, and the fourth upper lifting lug 12, respectively. Thus, the first lower lifting point 15, the second lower lifting point 16, the third lower lifting point 17, and the fourth lower lifting point 18 are corresponding vertically and evenly distributed. The three lower lifting points 17 and the fourth lower lifting point 18 enable the lifting force to form a symmetrical and balanced force system on the upper and lower parts of the pier, preventing the pier from tilting or twisting due to force imbalance during the lifting process, ensuring the stability of the pier's lifting posture and reducing the risk of overturning. In addition, the symmetrical lifting point design can not only assist the upper lifting clamp 1 in achieving stable lifting and lowering of the pier during the lifting process, but also not interfere with the operation of the jack assembly 4 during the subsequent horizontal adjustment stage. At the same time, the lower adjustment clamp 2 can be easily disassembled for lifting and transportation, greatly improving the overall construction efficiency.

[0047] A first jack support 19, a second jack support 20, a third jack support 21, and a fourth jack support 22 are uniformly welded along the circumference on the outer sides of the first lower arc plate 13 and the second lower arc plate 14. The first jack support 19, the second jack support 20, the third jack support 21, and the fourth jack support 22 are respectively located at the midpoint between adjacent first lower lifting points 15, second lower lifting points 16, third lower lifting points 17, and fourth lower lifting points 18. The bottom surface of each jack support abuts against the jack assembly 4. Thus, the four evenly distributed jack supports 19, 20, 21, and 22, located at the midpoints of adjacent lifting points, enable the jacks to... The adjustment force applied by component 4 is evenly distributed along the circumference of the pier column. Combined with the extension and retraction of jack component 4, it can achieve horizontal fine adjustment of the pier column with an accuracy of ±1mm in the 360° direction, effectively solving the problem of low adjustment accuracy in existing technologies and meeting the requirements of high-standard docking. In addition, the welding fixing method ensures that the first jack support 19, the second jack support 20, the third jack support 21, and the fourth jack support 22 do not shift when subjected to adjustment force, ensuring the structural stability of the pier column during adjustment and avoiding the risk of overturning. At the same time, by replacing the first lower arc plate 13 and the second lower arc plate 14 with different models and sizes, the needs of pier columns with different diameters can be met without additional adjustment of the support position, taking into account the adjustment accuracy, structural reliability, and adaptability flexibility.

[0048] See Figure 1 , Figure 2 , Figure 3 and Figure 4 The jack assembly 4 has a jack body 23. The bottom surfaces of the first jack support 19, the second jack support 20, the third jack support 21, and the fourth jack support 22 are all provided with mounting grooves 24. The top of the telescopic rod of the jack body 23 abuts against the mounting groove 24. The mounting groove 24 can form a precise limit on the telescopic rod of the jack body 23, avoiding displacement or offset of the jack body 23 due to force during the horizontal adjustment of the pier column, ensuring that the adjustment force applied by the jack body 23 acts stably on the support, and ensuring a horizontal fine-tuning effect with a precision of ±1mm in the 360° direction.

[0049] The mounting groove 24 is equipped with anti-slip textures 25. The anti-slip textures 25 can increase the friction between the top of the telescopic rod of the jack body 23 and the inner wall of the mounting groove 24, preventing relative sliding between the telescopic rod and the mounting groove 24 during the horizontal adjustment of the pier column. This ensures that the adjustment force is accurately transmitted to the lower adjustment clamp 2, guaranteeing the horizontal fine-tuning accuracy of the pier column in the 360° direction of ±1mm. This solves the problem that the existing adjustment method is prone to loss of accuracy due to component slippage. In addition, the anti-slip textures 25 do not require additional fixing structures and do not affect the ease of disassembly and assembly of the jack assembly 4, taking into account both structural adaptability and ease of construction operation.

[0050] See Figure 1 , Figure 2 , Figure 3 and Figure 4 The mounting groove 24 has tightening bolts 26 on both sides for fixing the jack body 23. By tightening the bolts 26 with a knob, the jack body 23 is tightened, further limiting the displacement of the jack body 23 during the adjustment process. Together with the mounting groove 24 and the anti-slip texture 25, a double fixation is formed to ensure that the jack body 23 is stable when bearing the weight of the pier or applying telescopic force, and to ensure the horizontal fine adjustment accuracy of the pier in the 360° direction of ±1mm, avoiding adjustment deviation due to loosening of the jack body 23. In addition, the design of the tightening bolts 26 can be adapted to different specifications of jack bodies 23, and the bolt adjustment operation is convenient. It does not affect the quick disassembly and assembly of the jack assembly 4, nor does it interfere with the replacement of different models of the lower control clamp 2.

[0051] The lifting assembly 3 has a hook 27, with a lifting beam 28 connected to the lower part of the hook 27. A first lifting rope 29 and a second lifting rope 30 are respectively connected to both ends of the bottom surface of the lifting beam 28. The first lifting rope 29 and the second lifting rope 30 are detachably fixed to a first upper lifting lug 9, a second upper lifting lug 10, a third upper lifting lug 11, or a fourth upper lifting lug 12. The combination of the lifting beam 28 and the first lifting rope 29 and the second lifting rope 30 can distribute the lifting force. Combined with the even distribution of the four upper lifting lugs, this further ensures balanced force distribution during the lifting of the pier column, avoiding... The design prevents the pier from tilting or being deformed by local pressure, ensuring stable hoisting posture. In addition, the design of the first hoisting rope 29 and the second hoisting rope 30 being detachable and fixed not only allows for flexible selection of the corresponding hoisting lug connection according to the actual outer diameter of the pier, adapting to the specification adjustment requirements of the clamp, but also allows for quick removal of the hoisting component 3 after the pier is hoisted into place, without interfering with the subsequent horizontal adjustment operation of the lower control clamp 2. At the same time, it simplifies the assembly process before hoisting and the disassembly process after hoisting, improving construction efficiency and taking into account hoisting stability, adaptability flexibility and ease of operation.

[0052] See Figure 1 , Figure 2 , Figure 3 and Figure 4The first jack support 19, the second jack support 20, the third jack support 21, and the fourth jack support 22 are all rectangular steel blocks. These rectangular steel blocks are welded and fixed to the lower adjusting clamp 2. The rectangular steel blocks have high structural strength and stable load-bearing capacity, and can reliably withstand the force applied by the jack body 23 when adjusting the pier column, avoiding the deformation of the support affecting the adjustment accuracy and ensuring the pier column's 360° horizontal fine-tuning effect of ±1mm. In addition, the welding fixing method ensures that the first jack support 19 and the second jack support 20... The third jack support 21 and the fourth jack support 22 form a stable whole with the lower regulating clamp 2, preventing the first jack support 19, the second jack support 20, the third jack support 21 and the fourth jack support 22 from shifting during the adjustment process, further improving structural stability and reducing the risk of pier overturning. At the same time, the rectangular steel block is easy to process, and the welding fixation does not interfere with the lower regulating clamp 2. By changing different sizes and models, it can adapt to the needs of piers with different diameters, taking into account structural reliability, construction safety and adaptability.

[0053] The upper hoisting clamp 1 is fitted onto the upper part of the pier, and the height of the fitting position from the top of the pier is one-quarter to one-third of the pier height. This position allows the point of application of the hoisting force to form a reasonable force relationship with the center of gravity of the pier, avoiding the lower part of the pier from swaying due to the hoisting point being too high or the upper part from tilting due to the hoisting point being too low, ensuring the stability of the pier during hoisting and reducing the risk of overturning. In addition, this fitting position and the installation position of the lower adjusting clamp 2 at the lower part of the pier form a coordinated support, which does not interfere with the jack assembly 4's adjustment of the horizontal position of the pier, and can also cooperate with the lower adjusting clamp 2 to maintain the overall stability of the pier during the adjustment phase.

[0054] See Figure 1 , Figure 2 , Figure 3 and Figure 4 The lower regulating clamp 2 is fitted onto the lower part of the pier column, and the fitting position is above the part of the pier column embedded in the foundation. This position allows the lower regulating clamp 2 to avoid the foundation's spatial obstruction of the jack assembly 4, ensuring that the jack bodies 23 on the first jack support 19, the second jack support 20, the third jack support 21, and the fourth jack support 22 can smoothly contact the pre-embedded steel plate or temporary support structure on the top of the foundation, providing stable force support for the horizontal adjustment of the pier column and ensuring an adjustment accuracy of ±1mm in the 360° direction. In addition, this fitting position and the installation position of the upper hoisting clamp 1 on the upper part of the pier column form a support system that echoes each other, which can not only help maintain the stability of the pier column's posture during the hoisting stage, but also accurately adjust the horizontal position of the pier column through the jack bodies 23 during the adjustment stage.

[0055] Both the upper hoisting clamp 1 and the lower adjusting clamp 2 are made of high-strength steel plates. High-strength steel plates have excellent load-bearing performance and structural stability, and can reliably withstand the hoisting weight of 50t to 200t pier columns and the force exerted by the jack body 23 during adjustment. This prevents the upper hoisting clamp 1 and the lower adjusting clamp 2 from deforming or breaking during construction, and ensures the structural safety of the hoisting and horizontal adjustment process.

[0056] See Figure 1 , Figure 2 , Figure 3 and Figure 4 In this embodiment, the first upper arc plate 7 and the second upper arc plate 8 of the upper hoisting clamp 1 are first hinged and opened, and then fitted onto the upper part of the circular hollow pier (at a height of one-quarter to one-third of the pier height from the top of the pier). Then, the other ends of the two arc plates are fastened with the first high-strength bolt 5, so that the upper hoisting clamp 1 is tightly fitted to the pier. Then, the first lower arc plate 13 and the second lower arc plate 14 of the lower adjusting clamp 2 are hinged and opened, and then fitted onto the lower part of the pier (above the part of the pier embedded in the foundation). The other ends of the two arc plates are fastened with the second high-strength bolt 6. Then, the first lifting rope 29 and the second lifting rope 30 of the hoisting assembly 3 are detachably connected to any two first upper hoisting lugs on the outside of the upper hoisting clamp 1. 9 or the second upper lifting lug 10 or the third upper lifting lug 11 or the fourth upper lifting lug 12, use the hoisting equipment to lift the pier column and lower it to the vicinity of the preset position on the foundation; then install the jack assembly 4 on the four jack supports on the outside of the adjusting clamp, so that the bottom end of the jack body 23 contacts the pre-embedded steel plate or temporary support structure on the top of the foundation. Use a level to detect the horizontal deviation of the pier column, and operate the corresponding jack assembly 4 to extend and retract to adjust the horizontal position of the pier column until the deviation meets the design requirements; finally, fill the gap between the pier column and the foundation with grout or install fixed connectors. After it is fixed and stable, remove the jack assembly 4, and loosen the first high-strength bolt 5 and the second high-strength bolt 6 respectively. Remove the upper lifting clamp 1 and the lower adjusting clamp 2 to complete the pier column installation.

[0057] See Figure 1 , Figure 2 , Figure 3 and Figure 4 The specific control and installation steps of the horizontal adjustment and installation structure for pier hoisting in this embodiment are as follows: Step 1, clamp installation: First, put the upper hoisting clamp 1 on the upper part of the pier (1 / 4-1 / 3 of the height from the top of the pier), and put the lower adjusting clamp 2 on the lower part of the pier (at the distance from the pier embedded in the foundation). Secure the two sets of clamps to the pier with the first high-strength bolt 5 and the second high-strength bolt 6 to ensure that the clamps fit tightly to the pier and are not loose. Step 1: hoisting and positioning. The first hoisting rope 29 and the second hoisting rope 30 of the hoisting component 3 are connected to the first upper hoisting lug 9, the second upper hoisting lug 10, the third upper hoisting lug 11 and the fourth upper hoisting lug 12. The pier is slowly hoisted, the hoisting posture is adjusted, and the pier is hoisted to the top of the foundation. The pier is gradually lowered so that the bottom of the pier is close to the installation position of the foundation. The lower adjusting clamp 2 is pressed on the jack component 4. Step 1, Horizontal Adjustment: Once the bottom of the pier enters the preset range of the foundation, stop lowering the hoisting equipment and check the horizontal deviation of the pier using a level. If a deviation exists, activate the corresponding jack body 23: when it is necessary to raise a certain side of the pier, extend the jack body 23 on that side; when it is necessary to lower a certain side, shorten the corresponding jack body 23. Through the coordinated extension and retraction of the four jack bodies 23, adjust the horizontal position and axial deviation of the pier until the horizontality of the pier and the deviation of the axial line from the foundation baseline meet the design requirements. Step 1: After the initial acceptance and adjustment, fill the space between the pier and the foundation with grout or install a fixing connector. Once the fixed structure is stable, remove the jack assembly 4, the lower control clamp 2, and the upper hoisting clamp 1 to complete the pier installation.

[0058] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A horizontally adjustable installation structure for pier column hoisting, characterized in that: It includes an upper hoisting clamp (1), a lower regulating clamp (2), a hoisting assembly (3), and a jack assembly (4); The upper hoisting clamp (1) and the lower adjusting clamp (2) are both coaxial arc-shaped steel plate splicing structures, and the inner diameter of the upper hoisting clamp (1) and the lower adjusting clamp (2) are adapted to the outer diameter of the pier column. The upper hoisting clamp (1) and the lower adjusting clamp (2) are respectively connected by a first high-strength bolt (5) and a second high-strength bolt (6); The hoisting assembly (3) is detachably connected to the upper hoisting clamp (1), and the top of the jack assembly (4) abuts against the lower regulating clamp (2).

2. The horizontal adjustment and installation structure for pier hoisting according to claim 1, characterized in that: The upper hoisting clamp (1) has a first upper arc plate (7) and a second upper arc plate (8) symmetrically distributed. One end of the first upper arc plate (7) and the second upper arc plate (8) are hinged to each other, and the other end of the first upper arc plate (7) and the second upper arc plate (8) are connected by the first high-strength bolt (5).

3. The horizontal adjustment and installation structure for pier hoisting according to claim 2, characterized in that: The outer sides of the first upper arc plate (7) and the second upper arc plate (8) are evenly provided with a first upper lifting ear (9), a second upper lifting ear (10), a third upper lifting ear (11) and a fourth upper lifting ear (12) along the circumferential direction. The lifting assembly (3) is detachably connected to the first upper lifting ear (9), the second upper lifting ear (10), the third upper lifting ear (11) and the fourth upper lifting ear (12).

4. The horizontal adjustment and installation structure for pier hoisting according to claim 3, characterized in that: The lower adjustable clamp (2) has a first lower arc plate (13) and a second lower arc plate (14) symmetrically distributed. One end of the first lower arc plate (13) and the second lower arc plate (14) are hinged to each other, and the other end of the first lower arc plate (13) and the second lower arc plate (14) are connected by the second high-strength bolt (6).

5. The horizontal adjustment and installation structure for pier hoisting according to claim 4, characterized in that: The outer sides of the first lower arc plate (13) and the second lower arc plate (14) are uniformly provided with a first lower lifting point (15), a second lower lifting point (16), a third lower lifting point (17) and a fourth lower lifting point (18) along the circumferential direction. The first lower lifting point (15), the second lower lifting point (16), the third lower lifting point (17) and the fourth lower lifting point (18) correspond to the first upper lifting ear (9), the second upper lifting ear (10), the third upper lifting ear (11) and the fourth upper lifting ear (12) respectively.

6. The horizontal adjustment and installation structure for pier hoisting according to claim 5, characterized in that: The outer sides of the first lower arc plate (13) and the second lower arc plate (14) are uniformly welded with a first jack support (19), a second jack support (20), a third jack support (21) and a fourth jack support (22) along the circumferential direction. The first jack support (19), the second jack support (20), the third jack support (21) and the fourth jack support (22) are respectively located at the midpoint between adjacent first lower lifting points (15), second lower lifting points (16), third lower lifting points (17) and fourth lower lifting points (18). The bottom surface of each jack support abuts against the jack assembly (4).

7. The horizontal adjustment and installation structure for pier hoisting according to claim 6, characterized in that: The jack assembly (4) has a jack body (23), and the bottom surfaces of the first jack support (19), the second jack support (20), the third jack support (21) and the fourth jack support (22) are all provided with mounting grooves (24), and the top end of the telescopic rod of the jack body (23) abuts against the mounting groove (24).

8. The horizontal adjustment and installation structure for pier hoisting according to claim 7, characterized in that: The mounting groove (24) is provided with anti-slip texture (25).

9. The horizontal adjustment and installation structure for pier hoisting according to claim 7, characterized in that: The mounting groove (24) is provided with tightening bolts (26) on both sides for fixing the jack body (23).

10. The horizontal adjustment and installation structure for pier hoisting according to claim 3, characterized in that: The hoisting assembly (3) has a hook (27), and a lifting beam (28) is connected to the lower part of the hook (27). A first lifting rope (29) and a second lifting rope (30) are respectively connected to the two ends of the bottom surface of the lifting beam (28). The first lifting rope (29) and the second lifting rope (30) are detachably fixed to the first upper lifting lug (9), the second upper lifting lug (10), the third upper lifting lug (11), or the fourth upper lifting lug (12).

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