High-strength steel structure pier

Abstract

The high-strength steel structure pier comprises a base and two trapezoidal box columns, the two trapezoidal box columns are symmetrically arranged, each trapezoidal box column comprises a lower box column, an outer bent box column, an upper box column and a bearing platform which are sequentially connected from bottom to top, and reinforcing rib plates arranged in the longitudinal direction are welded to the inner side wall faces of the lower box columns, the outer bent box columns and the upper box columns correspondingly; a plurality of first trapezoidal reinforcing plates are arranged in the outer bent box column in the transverse direction, a plurality of first assembling grooves are formed in the first trapezoidal reinforcing plates, first assembling parts connected with the corresponding first assembling grooves are arranged on all the inner wall faces of the outer bent box column in an extending mode, and a cross-shaped reinforcing rib plate is arranged in the bearing platform in the longitudinal direction. And each side edge of the cross-shaped added rib plate is welded and connected with the corresponding inner wall surface of the bearing platform. The structural strength is high, the tension and compression performance of a steel structure is fully exerted, the stress performance is excellent, and the size is far smaller than that of a concrete pier.

Description

Technical Field

[0001] This application relates to the field of steel structures, and in particular to a high-strength steel structure bridge pier. Background Technology

[0002] Traditional bridge piers typically use reinforced concrete or steel structures at their bases. Conventional reinforced concrete piers often require larger pier dimensions to meet load-bearing requirements, resulting in issues such as occupying more space, poor aesthetic harmony, significant impact on surrounding traffic, large masonry volume, and susceptibility to concrete cracking. Utility Model Content

[0003] To address the issues of reinforced concrete bridge piers occupying too much space, having poor landscape coordination, significantly impacting surrounding traffic, having large masonry volumes, and being prone to concrete cracking, this application provides a high-strength steel structure bridge pier.

[0004] A high-strength steel structure bridge pier includes: a base and two trapezoidal box columns, the two trapezoidal box columns being symmetrically arranged. Each trapezoidal box column includes a lower box column, an outer curved box column, an upper box column, and a pier cap connected sequentially from bottom to top. Connecting plates are connected between the two opposing lower box columns and the two opposing outer curved box columns. Each inner sidewall of the lower box column, the outer curved box column, and the upper box column is welded with reinforcing ribs arranged along the longitudinal direction, and each reinforcing rib is perpendicular to the corresponding inner sidewall. The sidewalls of the lower box column and the outer curved box column are evenly distributed with a number of external shear studs. The interior of the outer curved box column is provided with a number of first trapezoidal reinforcing plates arranged along the transverse direction. The first trapezoidal reinforcing plates have a number of first assembly slots. Each inner sidewall of the outer curved box column extends with a first assembly part connected to the corresponding first assembly slot. The interior of the pier cap is provided with cross-shaped reinforcing ribs arranged along the longitudinal direction, and each side of the cross-shaped reinforcing ribs is welded to the corresponding inner wall of the pier cap.

[0005] Preferably, the interior of the upper box column is provided with a plurality of second trapezoidal reinforcing plates along the transverse direction, the second trapezoidal reinforcing plates are provided with a plurality of second assembly slots, and each inner wall surface of the upper box column is provided with a second assembly part that connects to the corresponding second assembly slot.

[0006] Preferably, both the first and second assembly components include an extension section and a tensile section. One end of the extension section is welded to the inner wall corresponding to the outer curved box column or the upper box column, and the other end of the extension section is connected to the tensile section. The width of the tensile section is greater than the width of the extension section. Both the first and second assembly slots are provided with tensile grooves corresponding to the tensile section.

[0007] Preferably, at each corner of the inner side of the outer curved box column and the upper box column, fan-shaped ribs formed by welding are provided in the longitudinal direction.

[0008] Preferably, a transition reinforcement plate is provided at the connection between the lower box column and the outer curved box column in the transverse direction. The transition reinforcement plate is located inside the connection between the lower box column and the outer curved box column and is welded to each of the internal parts.

[0009] Preferably, the outer curved box column and the wall surface parallel to the bending direction are formed by welding together several triangular plates and trapezoidal plates.

[0010] Preferably, there are two connecting plates, which are welded to the front and rear edges of the lower box column and the outer curved box column, respectively, and a reinforcing plate is provided between the two connecting plates.

[0011] Preferably, the base is provided with a plurality of mounting holes.

[0012] In summary, this application includes at least one of the following beneficial technical effects: The high-strength steel structure pier of this application adopts two trapezoidal box columns symmetrically arranged. The trapezoidal box columns include a lower box column, an outer curved box column, an upper box column, and a pier cap connected sequentially from bottom to top. Connecting plates are connected between the two lower box columns and the two opposite outer curved box columns. The structure has high strength, fully utilizes the tensile and compressive properties of steel structures, has superior stress performance, and its size is much smaller than that of concrete piers. Moreover, the steel pier can be prefabricated in the factory and hoisted on site, which can greatly reduce the construction period. Secondly, the setting of reinforcing ribs, external shear studs, a first trapezoidal reinforcing plate, a first assembly groove, a first assembly accessory, and cross-shaped additional ribs can further enhance the structural strength of the high-strength steel structure pier of this application. At the same time, it can improve the bonding strength with the internal post-cast concrete, improve the overall structural strength and load-bearing performance of this application, and reduce the volume of this application. Attached Figure Description

[0013] Figure 1 This is a front structural diagram of this application.

[0014] Figure 2 This application Figure 1 A schematic diagram of the structure in the AA direction.

[0015] Figure 3 This application Figure 1 A schematic diagram of the structure in the EE direction.

[0016] Figure 4 This application Figure 1 A schematic diagram of the structure in the FF direction.

[0017] Figure 5 This application Figure 1 A schematic diagram of the structure in the GG direction.

[0018] Figure 6 This application Figure 1 A schematic diagram of the structure in the HH direction.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Base; 2. Trapezoidal box column; 3. Lower box column; 4. Outwardly curved box column; 5. Upper box column; 6. Foundation; 7. Connecting plate; 8. Reinforcing rib; 9. External shear stud; 10. First trapezoidal reinforcing plate; 11. First assembly slot; 12. First assembly fitting; 13. Cross-shaped reinforcing rib; 14. Second trapezoidal reinforcing plate; 15. Second assembly slot; 16. Second assembly fitting; 17. Extension section; 18. Tensile section; 19. Tensile groove; 20. Fan-shaped rib; 21. Transitional reinforcing plate; 22. Triangular plate; 23. Trapezoidal plate; 24. Reinforcing plate; 25. Assembly hole. Detailed Implementation

[0021] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail below.

[0022] See Figures 1-6 A high-strength steel structure bridge pier includes: a base 1 and two trapezoidal box columns 2, the two trapezoidal box columns 2 being symmetrically arranged. Each trapezoidal box column 2 includes a lower box column 3, an outer curved box column 4, an upper box column 5, and a pier cap 6 connected sequentially from bottom to top. Connecting plates 7 connect the two opposing lower box columns 3 and the two opposing outer curved box columns 4. Each inner sidewall of the lower box column 3, the outer curved box column 4, and the upper box column 5 is welded with reinforcing ribs 8 arranged longitudinally, and each reinforcing rib 8 is perpendicular to the corresponding inner sidewall. The sidewalls of the lower box column 3 and the outer curved box column 4 are... The outer curved box column 4 is provided with a number of external shear studs 9. The interior of the outer curved box column 4 is provided with a number of first trapezoidal reinforcing plates 10 along the transverse direction. The periphery of the first trapezoidal reinforcing plates 10 is welded to the inner wall of the corresponding outer curved box column 4. The first trapezoidal reinforcing plates 10 are provided with a number of first assembly slots 11. Each inner wall surface of the outer curved box column 4 is provided with a first assembly part 12 that is connected to the corresponding first assembly slot. The interior of the bearing platform 6 is provided with cross-shaped reinforcing ribs 13 along the longitudinal direction. Each side of the cross-shaped reinforcing ribs 13 is welded to the inner wall surface of the corresponding bearing platform 6.

[0023] See Figure 1The high-strength steel structure pier of this application adopts two trapezoidal box columns 2 symmetrically arranged. The trapezoidal box column 2 includes a lower box column 3, an outer curved box column 4, an upper box column 5 and a pier cap 6 connected sequentially from bottom to top. The two lower box columns 3 and the two opposite outer curved box columns 4 are connected by connecting plates 7. The structure has high strength, fully utilizes the tensile and compressive properties of steel structure, has better stress performance, and its size is much smaller than that of concrete bridge piers. Moreover, the steel bridge pier can be prefabricated in the factory and hoisted on site, which can greatly reduce the construction period. Secondly, the setting of reinforcing ribs 8, box shear studs 9, first trapezoidal reinforcing plates 10, first assembly grooves 11, first assembly parts 12 and cross-shaped additional ribs 13 can further enhance the structural strength of the high-strength steel structure pier of this application. At the same time, it can improve the bonding strength with the internal post-cast concrete, improve the overall structural strength and load-bearing performance of this application, and reduce the volume of this application.

[0024] See Figure 5 The upper box column 5 has a plurality of second trapezoidal reinforcing plates 14 arranged in the transverse direction inside. The second trapezoidal reinforcing plates 14 have a plurality of second assembly slots 15. Each inner wall surface of the upper box column 5 extends with a second assembly part 16 connected to the corresponding second assembly slot 15. Specifically, the periphery of the second trapezoidal reinforcing plate 14 is welded to the inner wall of the upper box column 5. The second assembly slots 15 and the second assembly parts 16 cooperate to achieve rapid positioning and assembly. At the same time, it can improve the transverse deformation resistance of the second trapezoidal reinforcing plate 14 and improve the overall structural strength and load-bearing performance of this application.

[0025] See Figure 5 The first assembly 12 and the second assembly 16 both include an extension section 17 and a tensile part 18. One end of the extension section 17 is welded to the inner wall corresponding to the outer curved box column 4 or the upper box column 5, and the other end of the extension section 17 is connected to the tensile part 18. The width of the tensile part 18 is greater than the width of the extension section 17. The first assembly groove 11 and the second assembly groove 15 are both provided with tensile grooves 19 corresponding to the tensile part 18. Specifically, the width of the tensile part 18 being greater than the width of the extension section 17 can further improve the lateral deformation resistance of the second trapezoidal reinforcing plate 14 and improve the overall structural strength and load-bearing performance of this application.

[0026] See Figure 4 and Figure 5 At each corner of the inner side of the outer curved box column 4 and the upper box column 5, fan-shaped ribs 20 formed by welding are provided in the longitudinal direction. Specifically, the fan-shaped ribs 20 can improve the structural strength of each corner, i.e., the connection of each steel plate, and at the same time provide a certain longitudinal anti-deformation support, thereby improving the load-bearing performance of this application.

[0027] See Figure 1The connection between the lower box column 3 and the outer curved box column 4 is provided with a transition reinforcement plate 21 in the transverse direction. The transition reinforcement plate is located inside the connection between the lower box column 3 and the outer curved box column 4 and is welded to each of the interior parts. Specifically, the periphery of the transition reinforcement plate 21 is welded to the inner wall surface of the corresponding lower box column 3, which can greatly enhance the transverse deformation resistance of the connection between the lower box column 3 and the outer curved box column 4 and improve the overall load-bearing performance of this application.

[0028] See Figure 1 The outer curved box column 4 has a wall surface parallel to the bending direction, which is formed by welding several triangular plates 22 and trapezoidal plates 23 together. Specifically, several triangular plates 22 and trapezoidal plates 23 are welded together to form the front and rear walls of the outer curved box column 4 parallel to the bending direction. The use of triangular plates 22 and trapezoidal plates 23 for welding and splicing results in better resistance to deformation at the bending point and can meet the bending requirements of the outer curved box column 4.

[0029] See Figure 1 The connecting plate 7 consists of two pieces, which are welded to the front and rear edges of the lower box column 3 and the outer curved box column 4, respectively. A reinforcing plate 24 is provided between the two connecting plates 7, thereby providing good lateral support for the trapezoidal box columns 2 on both sides and improving the overall deformation resistance and load-bearing performance of this application.

[0030] See Figure 3 The base 1 is provided with a plurality of mounting holes 25 to facilitate connection with the foundation.

[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-strength steel structure bridge pier, characterized in that: The system includes a base (1) and two trapezoidal box columns (2), which are symmetrically arranged. Each trapezoidal box column (2) includes a lower box column (3), an outer curved box column (4), an upper box column (5), and a support platform (6) connected sequentially from bottom to top. A connecting plate (7) connects the two opposing lower box columns (3) and the two opposing outer curved box columns (4). Each inner wall of the lower box column (3), the outer curved box column (4), and the upper box column (5) is welded with a reinforcing rib (8) arranged along the longitudinal direction, and each reinforcing rib (8) is perpendicular to the corresponding inner wall. (3) and the side walls of the outer curved box column (4) are evenly distributed with a number of box shear nails (9). The interior of the outer curved box column (4) is provided with a number of first trapezoidal reinforcing plates (10) along the transverse direction. The first trapezoidal reinforcing plates (10) are provided with a number of first assembly slots (11). Each inner wall surface of the outer curved box column (4) is provided with a first assembly part (12) connected to the corresponding first assembly slot. The interior of the bearing platform (6) is provided with a cross-shaped reinforcing rib (13) along the longitudinal direction. Each side of the cross-shaped reinforcing rib (13) is welded to the inner wall surface of the corresponding bearing platform (6).

2. The high-strength steel structure bridge pier according to claim 1, characterized in that: The interior of the upper box column (5) is provided with a number of second trapezoidal reinforcing plates (14) along the transverse direction. The second trapezoidal reinforcing plates (14) are provided with a number of second assembly slots (15). Each inner wall surface of the upper box column (5) is provided with a second assembly part (16) that is connected to the corresponding second assembly slot (15).

3. The high-strength steel structure bridge pier according to claim 2, characterized in that: The first assembly (12) and the second assembly (16) both include an extension section (17) and a tensile part (18). One end of the extension section (17) is welded to the inner wall corresponding to the outer curved box column (4) or the upper box column (5), and the other end of the extension section (17) is connected to the tensile part (18). The width of the tensile part (18) is greater than the width of the extension section (17). The first assembly groove (11) and the second assembly groove (15) are both provided with tensile grooves (19) corresponding to the tensile part (18).

4. The high-strength steel structure bridge pier according to claim 2, characterized in that: At each corner of the inner side of the outer curved box column (4) and the upper box column (5), fan-shaped ribs (20) formed by welding are provided in the longitudinal direction.

5. The high-strength steel structure bridge pier according to claim 2, characterized in that: A transition reinforcement plate (21) is provided at the connection between the lower box column (3) and the outer curved box column (4) along the transverse direction. The transition reinforcement plate is located inside the connection between the lower box column (3) and the outer curved box column (4) and is welded to each of the internal parts.

6. The high-strength steel structure bridge pier according to claim 2, characterized in that: The outer curved box column (4) and the wall surface parallel to the bending direction are formed by welding together several triangular plates (22) and trapezoidal plates (23).

7. The high-strength steel structure bridge pier according to claim 2, characterized in that: The connecting plate (7) consists of two pieces, which are welded to the front and rear edges of the lower box column (3) and the outer curved box column (4) respectively, and a reinforcing plate (24) is provided between the two connecting plates (7).

8. The high-strength steel structure bridge pier according to claim 2, characterized in that: The base (1) is provided with a number of mounting holes (25).

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