Reinforcing structure and pile structure
By adding a wing wall reinforcement structure to the axes of the special column, the problem of the existing reinforcement structure being poor in reinforcement of the special column is solved, and the seismic resistance of the special column is significantly improved.
Patent Information
- Application Number
- CN202421866895.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-08-02
AI Technical Summary
The existing reinforcement structure has poor reinforcement effect on the special-shaped column, making it difficult to improve the seismic resistance of the special-shaped column structure.
The wing wall reinforcement structure is adopted, and the wing wall is connected to the limbs of the special-shaped column, which enhances the load-bearing capacity and stiffness of the limbs and improves the overall seismic resistance.
It significantly improves the ultimate bearing capacity and stiffness of the special-shaped column, improves its energy consumption capacity, and thus improves its seismic resistance.
Smart Images
Figure CN222879294U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of special-shaped column reinforcement, in particular to a reinforcement structure and a pile column structure. Background Art
[0002] In the 1970s, with the acceleration of national economic development and urbanization, people's demand for housing increased, but the available land in cities was limited. The quality and functional requirements for housing also increased, including aesthetics, comfort and spatial layout. At this time, the traditional rectangular column structure system could no longer meet the needs, so the reinforced concrete special-shaped column structure system was first adopted in Tianjin, and gradually promoted nationwide in the 1980s. By 2006, the "Technical Code for Concrete Special-Shaped Column Structure" (JGJ149-2006) was issued to standardize the design and construction.
[0003] However, there are some problems with special-shaped column structures in practical applications, such as uneven pouring and reduced bearing capacity due to complex cross-sections. In addition, improper use and floor-adding reconstruction also require special-shaped column reinforcement and repair. As the service time increases, the stiffness and strength of special-shaped columns decrease, and the seismic performance weakens, so it is necessary to pay attention to their safety. Therefore, it is particularly important to evaluate and reinforce the seismic performance of today's special-shaped column structures.
[0004] Therefore, a new reinforcement structure is urgently needed to solve the problem that the reinforcement effect of the reinforcement structure on the special-shaped column is poor and it is difficult to improve the seismic performance of the special-shaped column structure. Utility Model Content
[0005] The main purpose of the utility model is to propose a reinforcement structure and a pile-column structure, aiming to solve the problem that the existing reinforcement structure has poor reinforcement effect on special-shaped columns and is difficult to improve the seismic performance of the special-shaped column structure.
[0006] To achieve the above-mentioned purpose, the reinforcement structure proposed in the utility model is applied to a special-shaped column, which includes a main part and a plurality of limbs protruding from the main part; the reinforcement structure includes wing walls, which are correspondingly connected to the limbs to reinforce the special-shaped column; the side walls of the wing walls are flush with the side walls of the limbs.
[0007] In one embodiment, the side of the limb end facing away from the main body has a plurality of first longitudinal bars and a plurality of first stirrups, the plurality of first longitudinal bars are arranged at intervals, and the plurality of first stirrups are surrounded and fixed on the plurality of first longitudinal bars; the side of the wing wall facing the limb end has second longitudinal bars and second stirrups; the second longitudinal bars are parallel to the first longitudinal bars, and the second stirrups are surrounded and fixed on the first longitudinal bars and the second longitudinal bars.
[0008] In one embodiment, the bottom of the special-shaped column is used to be fixed on the base, and the top of the special-shaped column is used to be fixed on the top beam; the bottom of the second longitudinal reinforcement is buried in the base, and the depth of the second longitudinal reinforcement buried in the base is 14 to 16 times the diameter of the second longitudinal reinforcement; and / or, the top of the second longitudinal reinforcement is buried in the top beam, and the depth of the second longitudinal reinforcement buried in the top beam is 14 to 16 times the diameter of the second longitudinal reinforcement.
[0009] In one embodiment, a plurality of groups of limb longitudinal reinforcement pairs are arranged at intervals inside the limb end, each group of limb longitudinal reinforcement pairs includes two first longitudinal reinforcements, and the two first longitudinal reinforcements in each group of limb longitudinal reinforcement pairs are arranged along a first direction, and the first direction is parallel to the thickness direction of the limb end; the plurality of groups of limb longitudinal reinforcement pairs are arranged equidistantly at first intervals along the length direction of the limb end; a plurality of groups of wing wall longitudinal reinforcement pairs are arranged at intervals inside the wing wall, each group of wing wall longitudinal reinforcement pairs includes two second longitudinal reinforcements, and the two second longitudinal reinforcements in each group of wing wall longitudinal reinforcement pairs are arranged along a direction parallel to the first direction; the plurality of groups of wing wall longitudinal reinforcement pairs are arranged equidistantly at first intervals along the length direction of the limb end.
[0010] In one embodiment, there is a first target longitudinal reinforcement pair among the multiple groups of limb end longitudinal reinforcement pairs, and there is a second target longitudinal reinforcement pair among the multiple groups of wing wall longitudinal reinforcement pairs, the spacing between the first target longitudinal reinforcement pair and the second target longitudinal reinforcement pair is the shortest, and the spacing between the first target longitudinal reinforcement pair and the second target longitudinal reinforcement pair is set to a first interval; and / or, the diameter of the second stirrup is set to 6±1mm; and / or, the second longitudinal reinforcement is set to HRB400 grade ribbed steel bars; and / or, the second stirrup is set to HPB300 grade steel bars.
[0011] In one embodiment, the length direction of the wing wall is parallel to the extension direction of the limb end, and the length of the wing wall is positively correlated with the limb height-to-limb thickness ratio of the limb end.
[0012] In one embodiment, the wall of the wing wall is formed by pouring concrete with a strength grade of C30.
[0013] In one embodiment, when the total length of the limb and the main body is 300±5 mm, the length of the wing wall is set to 100-150 mm.
[0014] The utility model also provides a pile column structure, comprising a special-shaped column and the above-mentioned reinforcement structure.
[0015] In one embodiment, the pile-column structure has a limb height-to-limb thickness ratio of ≤5.
[0016] The technical solution of the utility model is applied to a special-shaped column by adopting a reinforcement structure, wherein the special-shaped column comprises a main part and a plurality of limbs protruding from the main part; the reinforcement structure comprises wing walls, which are correspondingly connected to the limbs to reinforce the special-shaped column; and the side walls of the wing walls are flush with the side walls of the limbs.
[0017] The technical solution of the utility model significantly improves the ultimate bearing capacity and stiffness of the reinforced special-shaped column by adding wing walls to reinforce the limbs of the special-shaped column, and the wing walls can work well with the original special-shaped column. In addition, the wing wall reinforcement not only significantly enhances the overall initial stiffness of the special-shaped column, but also effectively improves its energy dissipation capacity, thereby improving the seismic performance of the special-shaped column. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0019] Figure 1 A structural schematic diagram of an embodiment of a reinforcement structure provided by the utility model;
[0020] Figure 2 for Figure 1 Cross-sectional view along AA.
[0021] Description of Figure Numbers:
[0022] 1. Reinforced structure; 11. Wing wall; 111. Second stirrup; 112. Wing wall longitudinal reinforcement pair; 1121. Second target longitudinal reinforcement pair; 2. Special-shaped column; 21. Main part; 22. Extremity; 221. First longitudinal reinforcement; 222. First stirrup; 223. Extremity longitudinal reinforcement pair; 2231. First target longitudinal reinforcement pair; 3. Base; 4. Top beam.
[0023] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0027] In the 1970s, with the acceleration of national economic development and urbanization, people's demand for housing increased, but the available land in cities was limited. The quality and functional requirements for housing also increased, including aesthetics, comfort and spatial layout. At this time, the traditional rectangular column structure system could no longer meet the needs, so the reinforced concrete special-shaped column structure system was first adopted in Tianjin, and gradually promoted nationwide in the 1980s. By 2006, the "Technical Code for Concrete Special-Shaped Column Structure" (JGJ149-2006) was issued to standardize the design and construction.
[0028] However, there are some problems with special-shaped column structures in practical applications, such as uneven pouring and reduced bearing capacity due to complex cross-sections. In addition, improper use and floor-adding reconstruction also require special-shaped column reinforcement and repair. As the service time increases, the stiffness and strength of special-shaped columns decrease, and the seismic performance weakens, so it is necessary to pay attention to their safety. Therefore, it is particularly important to evaluate and reinforce the seismic performance of today's special-shaped column structures.
[0029] Therefore, a new reinforcement structure is urgently needed to solve the problem that the reinforcement effect of the reinforcement structure on the special-shaped column is poor and it is difficult to improve the seismic performance of the special-shaped column structure.
[0030] In order to solve the above problems, the utility model proposes a reinforcement structure.
[0031] See also Figure 1 and Figure 2 In one embodiment of the utility model, the reinforcement structure 1 is applied to the special-shaped column 2, which includes a main body 21 and a plurality of limbs 22 protruding from the main body 21; the reinforcement structure 1 includes a wing wall 11, which is correspondingly connected to the limbs 22 to reinforce the special-shaped column 2; the side walls of the wing wall 11 are flush with the side walls of the limbs 22.
[0032] The technical solution of the utility model is to reinforce the limb 22 of the special-shaped column 2 by adding a wing wall 11, so that the ultimate bearing capacity and stiffness of the reinforced special-shaped column 2 are significantly improved, and the wing wall 11 can work well with the original special-shaped column 2. In addition, the technical solution of using the wing wall 11 to reinforce the special-shaped column 2 not only significantly enhances the overall initial stiffness of the special-shaped column 2, but also effectively improves the energy dissipation capacity of the special-shaped column 2, thereby improving the seismic performance of the special-shaped column 2. Specifically, the use of the wing wall 11 to reinforce the special-shaped column 2 can make the wing wall 11 yield and crack first when encountering an earthquake, thereby consuming seismic energy. Compared with the traditional reinforcement structure 1, the solution of using the wing wall 11 as the reinforcement structure 1 to reinforce the special-shaped column 2 is more adaptable, can improve the integrity of the column, effectively improve the bearing capacity and lateral stiffness, and at the same time maintain the design advantages of the special-shaped column 2 structure.
[0033] It should be noted that the special-shaped column 2 refers to a column with a special-shaped cross section, including columns with cross sections of shapes such as T-shaped columns, L-shaped columns, and Z-shaped columns, and the height-to-thickness ratio of each limb of the cross section is ≤ 4. For the special-shaped column 2, after adopting the reinforced structure of the utility model, the wing wall 11 is added to increase the cross-sectional area of the special-shaped column 2, which helps to reduce the axial compression ratio and improve the structural stability, while maintaining the flexibility of the spatial layout and the diversity of the architectural design.
[0034] In the embodiments of the present invention, please refer to Figure 2 The side of the limb 22 facing away from the main part 21 has multiple first longitudinal reinforcements 221 and multiple first hoop reinforcements 222, the multiple first longitudinal reinforcements 221 are arranged at intervals, and the multiple first hoop reinforcements 222 are surrounded and fixed on the multiple first longitudinal reinforcements 221; the side of the wing wall 11 facing the limb 22 has second longitudinal reinforcements and second hoop reinforcements 111; the second longitudinal reinforcement is parallel to the first longitudinal reinforcement 221, and the second hoop reinforcement 111 is surrounded and fixed on the first longitudinal reinforcement 221 and the second longitudinal reinforcement.
[0035] In this way, the second stirrup 111 is surrounded and fixed to the first longitudinal reinforcement 221 and the second longitudinal reinforcement, so as to realize the connection and fixation between the limb 22 and the wing wall 11. After testing, when the reinforced special-shaped column 2 specimen is subjected to strain, the longitudinal reinforcement of the limb 22 of the special-shaped column 2 specimen can reach the yield strength and fully play its role, thereby improving the seismic performance. Among them, the connection and fixation method of the second stirrup 111 and the first longitudinal reinforcement 221 and the second longitudinal reinforcement can be set to be fixed by binding or by welding. The specific fixing method can be determined according to actual needs and is not limited here.
[0036] In the embodiments of the present invention, please refer to Figure 1The bottom of the special-shaped column 2 is used to be fixed on the base 3, and the top of the special-shaped column 2 is used to be fixed on the top beam 4; the bottom of the second longitudinal reinforcement is buried in the base 3, and the depth of the second longitudinal reinforcement buried in the base 3 is 14 to 16 times the diameter of the second longitudinal reinforcement; and / or, the top of the second longitudinal reinforcement is buried in the top beam 4, and the depth of the second longitudinal reinforcement buried in the top beam 4 is 14 to 16 times the diameter of the second longitudinal reinforcement.
[0037] In this embodiment, the second longitudinal reinforcement can be reliably fixed by burying the bottom of the second longitudinal reinforcement in the base 3, the top of the second longitudinal reinforcement in the top beam 4, and setting the planting depth to 14 to 16 times the diameter of the second longitudinal reinforcement. As a preferred embodiment, the planting depth of the second longitudinal reinforcement buried in the base 3 can be set to 15±0.1 times the diameter of the second longitudinal reinforcement, and the planting depth of the second longitudinal reinforcement buried in the top beam 4 can be set to 15±0.1 times the diameter of the second longitudinal reinforcement.
[0038] Among them, in order to complete the planting of the second longitudinal reinforcement in the above embodiment, it is necessary to first excavate the limb 22 of the special-shaped column 2 to ensure that the first longitudinal reinforcement 221 and the first hoop reinforcement 222 located at the outermost layer of the limb 22 are exposed. Subsequently, use a drilling tool such as an electric drill to drill holes on the base 3 and the top beam 4, and use an air blower to clean the holes to ensure that there are no residual impurities in the holes. Then, inject the reinforcement glue into the hole to prepare for the next reinforcement planting operation. Next, screw the second longitudinal reinforcement of the wing wall 11 into the hole to complete the reinforcement planting.
[0039] In the embodiments of the present invention, please refer to Figure 1 and Figure 2 A plurality of groups of limb longitudinal reinforcement pairs 223 are arranged at intervals inside the limb end 22, each group of limb longitudinal reinforcement pairs 223 includes two first longitudinal reinforcements 221, and the two first longitudinal reinforcements 221 in each group of limb longitudinal reinforcement pairs 223 are arranged along a first direction, and the first direction is parallel to the thickness direction of the limb end 22; the plurality of groups of limb longitudinal reinforcement pairs 223 are arranged equidistantly at first intervals along the length direction of the limb end 22; a plurality of groups of wing wall longitudinal reinforcement pairs 112 are arranged at intervals inside the wing wall 11, each group of wing wall longitudinal reinforcement pairs 112 includes two second longitudinal reinforcements, and the two second longitudinal reinforcements in each group of wing wall longitudinal reinforcement pairs 112 are arranged along a direction parallel to the first direction; the plurality of groups of wing wall longitudinal reinforcement pairs 112 are arranged equidistantly at first intervals along the length direction of the limb end 22.
[0040] In this way, by equidistantly arranging multiple groups of limb longitudinal reinforcement pairs 223 and multiple groups of wing wall longitudinal reinforcement pairs 112, the structures of the limb 22 and the wing wall 11 are made more uniform when subjected to stress, which helps to improve the overall stability and bearing capacity of the special-shaped column 2. In addition, since the longitudinal reinforcement bears the main tensile force in the concrete structure, equidistantly arranging multiple groups of limb longitudinal reinforcement pairs 223 and multiple groups of wing wall longitudinal reinforcement pairs 112 helps the limb longitudinal reinforcement pairs 223 and the wing wall longitudinal reinforcement pairs 112 to work better together and exert their tensile properties, especially to improve their ability to work together when subjected to bending and shearing forces. In addition, the equidistantly arranged limb longitudinal reinforcement pairs 223 and wing wall longitudinal reinforcement pairs 112 have good ductility and energy dissipation capacity, which helps to improve the seismic performance of the special-shaped column 2.
[0041] Further, in the embodiments of the present invention, please refer to Figure 2 , there is a first target longitudinal reinforcement pair 2231 in the multiple groups of limb end longitudinal reinforcement pairs 223, there is a second target longitudinal reinforcement pair 1121 in the multiple groups of wing wall longitudinal reinforcement pairs 112, the spacing between the first target longitudinal reinforcement pair 2231 and the second target longitudinal reinforcement pair 1121 is the shortest, and the spacing between the first target longitudinal reinforcement pair 2231 and the second target longitudinal reinforcement pair 1121 is set to the first interval; and / or, the diameter of the second stirrup 111 is set to 6±1mm.
[0042] In this embodiment, by setting the spacing between the first target longitudinal reinforcement pair 2231 and the second target longitudinal reinforcement pair 1121 to the first interval, the spacing between the first target longitudinal reinforcement pair 2231 and the second target longitudinal reinforcement pair 1121, the spacing between multiple groups of limb longitudinal reinforcement pairs 223, and the spacing between multiple groups of wing wall longitudinal reinforcement pairs 112 are kept consistent, thereby further improving the uniformity between the special-shaped column 2 and the wing wall 11, so that the structure of the limb 22 and the wing wall 11 is more uniform when subjected to force, which helps to improve the overall stability and bearing capacity of the special-shaped column 2.
[0043] In addition, based on the Technical Code for Seismic Reinforcement of Buildings and the Technical Code for Post-Anchorage of Concrete Structures, the second longitudinal reinforcement is set as HRB400 grade ribbed steel bars and the second stirrups 111 are set as HPB300 grade steel bars.
[0044] In the embodiment of the present invention, the length direction of the wing wall 11 is parallel to the extension direction of the limb end 22 , and the length of the wing wall 11 is positively correlated with the limb height-to-limb thickness ratio of the limb end 22 .
[0045] It should be noted that since the width of the wing wall 11 is the same as the limb thickness of the special-shaped column 2, the length direction of the wing wall 11 is parallel to the extension direction of the limb end 22, that is, the increase in the length of the wing wall 11 corresponds to the increase in the limb height of the reinforced limb end 22, so the limb height-to-limb thickness ratio of the reinforced special-shaped column 2 also increases accordingly, and the length of the wing wall 11 is positively correlated with the limb height-to-limb thickness ratio of the reinforced special-shaped column 2.
[0046] In the embodiment of the utility model, as an optional implementation, the wall of the wing wall 11 is cast by concrete with a strength grade of C30. C30 concrete has a high compressive strength, usually around 30 MPa, which enables the wing wall 11 to withstand a large load and has good performance in seismic resistance.
[0047] In the embodiment of the present utility model, when the total length of the limb 22 and the main body 21 is 300±5 mm, the length of the wing wall 11 can be set to 100-150 mm.
[0048] For example, when the total length of the limb end 22 and the main part 21 is 300±5mm, the length of the wing wall 11 can be set to 100mm, and the limb thickness can be set to 100mm. At this time, the limb height-to-limb thickness ratio of the reinforced special-shaped column 2 is 4; when the total length of the limb end 22 and the main part 21 is 300±5mm, the length of the wing wall 11 can be set to 150mm, and the limb thickness can be set to 100mm. At this time, the limb height-to-limb thickness ratio of the reinforced special-shaped column 2 is 4.5.
[0049] The utility model also proposes a pile-column structure, which includes a special-shaped column 2 and the above-mentioned reinforcement structure 1. The specific structure of the reinforcement structure 1 refers to the above-mentioned embodiment. Since the pile-column structure adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.
[0050] In the embodiment of the utility model, the limb height-to-limb thickness ratio of the pile-column structure is ≤5. In this way, the risk of buckling failure due to the excessive slenderness of the limb end 22 caused by the excessive limb height-to-limb thickness ratio of the pile-column structure can be effectively avoided, thereby ensuring the safety and reliability of the structure. The limb height-to-limb thickness ratio of the pile-column structure is set to ≤5. When encountering an earthquake, the pile-column structure can show better ductility and energy dissipation capacity, thereby improving the seismic performance of the structure.
[0051] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A reinforcement structure, characterized in that: Applied to a special-shaped column, the special-shaped column comprises a main body and a plurality of limbs protruding from the main body; the reinforcement structure comprises: Wing walls are connected to the limb ends correspondingly to reinforce the special-shaped columns; the side walls of the wing walls are flush with the side walls of the limb ends.
2. The reinforcement structure according to claim 1, characterized in that: The side of the limb end facing away from the main body portion has a plurality of first longitudinal bars and a plurality of first stirrups, the plurality of first longitudinal bars are arranged at intervals, and the plurality of first stirrups are surrounded and fixed to the plurality of first longitudinal bars; The wing wall has a second longitudinal reinforcement and a second stirrup on one side facing the limb end; the second longitudinal reinforcement is parallel to the first longitudinal reinforcement, and the second stirrup is fixed around the first longitudinal reinforcement and the second longitudinal reinforcement.
3. The reinforcement structure according to claim 2, characterized in that: The bottom of the special-shaped column is used to be fixed on the base, and the top of the special-shaped column is used to be fixed on the top beam; The bottom of the second longitudinal reinforcement is buried in the base, and the embedding depth of the second longitudinal reinforcement in the base is 14 to 16 times the diameter of the second longitudinal reinforcement; And / or, the top of the second longitudinal reinforcement is buried in the top beam, and the embedding depth of the second longitudinal reinforcement in the top beam is 14 to 16 times the diameter of the second longitudinal reinforcement.
4. The reinforcement structure according to claim 2, characterized in that: A plurality of groups of limb longitudinal reinforcement pairs are arranged at intervals inside the limb, each group of the limb longitudinal reinforcement pairs includes two first longitudinal reinforcements, and the two first longitudinal reinforcements in each group of the limb longitudinal reinforcement pairs are arranged along a first direction, and the first direction is parallel to the thickness direction of the limb; the plurality of groups of limb longitudinal reinforcement pairs are arranged equidistantly at first intervals along the length direction of the limb; A plurality of groups of wing wall longitudinal reinforcement pairs are arranged at intervals inside the wing wall, each group of the wing wall longitudinal reinforcement pairs includes two second longitudinal reinforcements, and the two second longitudinal reinforcements in each group of the wing wall longitudinal reinforcement pairs are arranged in a direction parallel to the first direction; and the plurality of groups of the wing wall longitudinal reinforcement pairs are equidistantly arranged along the length direction of the limb end at the first interval.
5. The reinforcement structure according to claim 4, characterized in that: There is a first target longitudinal reinforcement pair among the plurality of groups of limb end longitudinal reinforcement pairs, and there is a second target longitudinal reinforcement pair among the plurality of groups of wing wall longitudinal reinforcement pairs, the spacing between the first target longitudinal reinforcement pair and the second target longitudinal reinforcement pair is the shortest, and the spacing between the first target longitudinal reinforcement pair and the second target longitudinal reinforcement pair is set to the first spacing; And / or, the diameter of the second stirrup is set to 6±1 mm; And / or, the second longitudinal reinforcement is configured as HRB400 grade ribbed reinforcement; And / or, the second stirrups are configured as HPB300 grade steel bars.
6. The reinforcement structure according to claim 1, characterized in that: The length direction of the wing wall is parallel to the extension direction of the limb end, and the length of the wing wall is positively correlated with the limb height-to-limb thickness ratio of the limb end.
7. The reinforcement structure according to claim 1, characterized in that: The wall body of the wing wall is formed by pouring concrete with a strength grade of C30.
8. The reinforcement structure according to claim 2, characterized in that: When the total length of the limb and the main body is 300±5 mm, the length of the wing wall is set to 100-150 mm.
9. A pile column structure, characterized in that: The invention comprises a special-shaped column and a reinforcement structure as claimed in any one of claims 1 to 8.
10. The pile structure according to claim 9, characterized in that: The pile-column structure has a limb height-to-limb thickness ratio of ≤5.