Bridge steel pipe stand column

Abstract

The utility model relates to a bridge steel pipe stand column and belongs to the technical field of bridge steel pipe structures. The steel pipe stand column comprises a stand column body and a connecting bolt set, the stand column body sequentially comprises a support pile cap, a support standard knot and a support pile foot along the axis, and the end of the support pile cap is provided with a first abutting part used for abutting against one end of the support standard knot; a first abutting portion used for abutting against one end of the support standard knot is arranged at the end of the support pile foot, a second abutting portion used for abutting against the other end of the support standard knot is arranged at the end of the support pile foot, third abutting portions corresponding to the two abutting portions are arranged at the two ends of the support standard knot, the first abutting portion and the third abutting portions are fixed through connecting bolt sets, and the second abutting portion and the third abutting portions are fixed through connecting bolt sets. The connecting device has the effect of improving the connecting efficiency of the two adjacent steel pipe stand columns.

Description

Technical Field

[0001] This application relates to the field of bridge steel pipe structure technology, and in particular to a bridge steel pipe column. Background Technology

[0002] Bridge steel pipe columns are bridge support structures made of steel pipes. They bear the weight of the bridge deck and loads, transferring these loads to the piers or abutments. As one of the main support structures of a bridge, steel pipe columns effectively distribute the bridge load, providing stable support and ensuring the bridge's stability and safety.

[0003] Common steel pipe columns mainly come in two forms: ordinary steel pipe columns and flange columns. Ordinary steel pipe columns are the commonly used type of columns, and their cross-sections are consistent along the length direction; while flange columns have a base plate and are installed on the foundation by anchor bolts or expansion bolts.

[0004] Regarding the aforementioned technologies, steel pipe columns of a certain length are required according to the design requirements of bridges. The length adjustment of existing steel pipe columns is generally achieved by splicing. However, the cross-section of steel pipe columns is generally circular, making it difficult to connect two adjacent steel pipe columns coaxially. Utility Model Content

[0005] In order to improve the connection efficiency of two adjacent steel pipe columns, this application provides a bridge steel pipe column.

[0006] The technical solution for a bridge steel pipe column provided in this application is as follows:

[0007] A bridge steel pipe column includes a column body, which includes a support pile cap, a support standard section, a support pile foot, and a connecting bolt group along its axis. The support pile cap has a first abutment portion at its end for abutting one end of the support standard section, and the support pile foot has a second abutment portion at its end for abutting the other end of the support standard section. Both ends of the support standard section have a third abutment portion corresponding to the two abutment portions. The first abutment portion and the third abutment portion, as well as the second abutment portion and the third abutment portion, are all fixed by the connecting bolt group.

[0008] By adopting the above technical solution, the steel pipe column is divided into three sections, from top to bottom: the support pile cap, the support standard section, and the support pile foot. When different lengths of column body are required, it is only necessary to increase or decrease the number of support standard sections, or rotate support standard sections of different lengths. The segmented arrangement design can optimize the stress situation of the steel pipe column and reduce the probability of structural failure caused by excessive stress at a single point. Through the setting of the first abutment part, the second abutment part, and the third abutment part, the contact area is increased when the support standard section is installed with the support pile cap and support pile foot, making the connection between two adjacent steel pipe sections tighter and dispersing stress, reducing the degree of local stress concentration, thereby enhancing the load-bearing capacity of the entire connection structure.

[0009] Optionally, the support pile cap is provided with a rectangular connecting part for fixing to the bottom of the bridge at one end away from the first abutment part, and the four corners of the rectangular connecting part are provided with chamfers.

[0010] By adopting the above technical solution, the four corners of the rectangular plate are usually areas of stress concentration, which are prone to cracking. By cutting off one corner, these stresses can be dispersed, making the rectangular connection more uniform when under stress, thereby improving the load-bearing capacity.

[0011] Optionally, a reinforcing frame is provided on both sides of the rectangular connecting portion, the reinforcing frame extends toward the first abutting portion, and a reinforcing connecting portion is provided between the reinforcing frame and the first abutting portion.

[0012] By adopting the above technical solutions and strengthening the frame, the steel pipe column can be connected to more connectors and supporting structures, thereby enhancing the overall lateral force resistance of the steel pipe column.

[0013] Optionally, the rectangular connecting portion and the first abutting portion are each provided with a first reinforcing rib on their respective sides, and the first reinforcing ribs are spaced apart circumferentially along the axis of the column body.

[0014] By adopting the above technical solution, the installation of the first reinforcing rib improves the structural strength and stability of the support pile cap, enabling the steel pipe column to more effectively resist external loads and forces. Simultaneously, the reinforcing rib improves the stress distribution of the steel pipe column. When subjected to external loads, the reinforcing rib disperses stress, reducing stress concentration.

[0015] Optionally, the standard section of the bracket is provided with a second reinforcing rib on one side of each of the two third abutment portions, and the second reinforcing rib is spaced apart circumferentially along the axis of the column body.

[0016] By adopting the above technical solution and setting the second reinforcing rib, the structural strength of the standard section of the support is further improved, enabling the steel pipe column to maintain the stability and durability of the structure under long-term load.

[0017] Optionally, the support pile foot is provided with a third reinforcing rib for abutting the ground on the side of the second abutment portion away from the standard section of the support, and the inclination angle of the third reinforcing rib is greater than that of the second reinforcing rib.

[0018] By adopting the above technical solution, the setting of the third reinforcing rib on the support pile foot can increase the structural strength of the support pile foot. At the same time, the increased inclination angle of the third reinforcing rib can increase the contact area between the support pile foot and the ground under the same height conditions, thereby improving the stability of the steel pipe column after splicing.

[0019] Optionally, the first reinforcing rib, the second reinforcing rib, and the third reinforcing rib are coaxially corresponding in the axial direction.

[0020] By adopting the above technical solution, the reinforcing ribs on each section correspond in the axial direction, which can ensure that the connection between each section of the steel pipe column is tighter and more stable when the column is under overall stress, thereby further enhancing the load-bearing capacity of the column.

[0021] Optionally, the side wall of the standard section of the bracket is provided with an installation part for the end installation of the steel pipe tie rod, and one end of the installation part is fixed to the end face of the third abutment part.

[0022] By adopting the above technical solution and setting up the installation section, the installation of the diagonal tie rods of two adjacent steel pipe columns is facilitated, the stability of the diagonal tie rods after installation is increased, and the construction and installation efficiency of the bridge is improved.

[0023] Optionally, the first abutting part, the second abutting part, and the third abutting part are all provided with connecting through holes for the connecting bolt groups to pass through. The connecting through holes are arranged circumferentially along the axis of the column body, and the bolts of adjacent connecting bolt groups pass through in opposite directions.

[0024] By adopting the above technical solution, the connection method of two adjacent abutment parts is disclosed. Bolts in different directions can form a more complex fastening structure. When subjected to external force, the bolts can restrain each other and reduce the possibility of loosening.

[0025] Optionally, the top surfaces of the second abutment and the upper third abutment are both provided with positioning ring grooves, and the support pile cap and the support standard section are both provided with positioning blocks for insertion into the positioning ring grooves. The inner wall of the positioning ring groove is provided with a limiting part for the positioning blocks to abut against.

[0026] By adopting the above technical solution, the cooperation between the positioning ring groove and the positioning block enables a positioning effect when two adjacent abutment parts are connected, so that the steel pipe column as a whole is in a coaxial state. The setting of the limiting part enables the rotation of the support pile cap and the support standard section to be limited, ensuring that the connection through holes of two adjacent abutment parts correspond and improving the installation efficiency of the connecting bolt group.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. By segmenting the steel pipe columns, this application can optimize the stress distribution of the steel pipe columns and reduce the probability of structural failure caused by excessive stress at a single point;

[0029] 2. By setting three sets of reinforcing ribs, this application improves the structural strength and stability of the steel pipe column, improves the stress distribution of the steel pipe column, and enables the steel pipe column to more effectively resist external loads and forces.

[0030] 3. This application, through the cooperation of the positioning block and the positioning ring groove and the setting of the limiting part in the positioning ring groove, facilitates that when two adjacent abutting parts are docked and fixed, they can be in a coaxial state, and facilitates the correspondence of two adjacent connecting through holes. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0032] Figure 2 This is a schematic diagram of the structure of the support pile cap in the embodiment of this application.

[0033] Figure 3 This is a schematic diagram of the structure of the support pile foot in the embodiment of this application.

[0034] Figure 4 This is a schematic diagram of the structure of the standard section of the support in the embodiments of this application.

[0035] Explanation of reference numerals in the attached drawings: 1. Column body; 2. Connecting bolt assembly; 3. Support pile cap; 31. First abutment part; 311. Connecting through hole; 32. Rectangular connecting part; 33. Reinforcing frame; 34. Reinforcing connecting part; 35. First reinforcing rib; 4. Support standard section; 41. Third abutment part; 411. Positioning block; 42. Second reinforcing rib; 43. Installation part; 5. Support pile foot; 51. Second abutment part; 511. Positioning ring groove; 512. Limiting part; 52. Third reinforcing rib. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0037] This application discloses a steel pipe column for bridges.

[0038] Reference Figure 1 A bridge steel pipe column includes a column body 1 and a connecting bolt assembly 2. The column body 1, from top to bottom, includes a support cap 3, a support standard section 4, and a support foot 5. The connecting bolt assembly 2 includes bolts, nuts, and washers. The support cap 3 is used for fixed connection to the steel pipe at the bottom of the bridge, and the support foot 5 is placed on the ground and fixed to the foundation. The support standard section 4 is located between the support cap 3 and the support foot 5. Depending on the design height of the bridge, support standard sections 4 of different lengths are selected, or multiple support standard sections 4 can be connected to each other.

[0039] Reference Figure 1 and Figure 2 The support pile cap 3 has a first abutment part 31 at the bottom end facing the support standard section 4. The first abutment part 31 is annular. The first abutment part 31 is fixed to the support pile cap 3 by welding. The first abutment part 31 has a connecting through hole 311 that penetrates both end faces along the axis of the column body 1. The connecting bolt group 2 passes through the connecting through hole 311 and is fixed to the support standard section 4.

[0040] The top plate of the support pile cap 3 is provided with a rectangular connecting part 32 for fixing to the bridge. The rectangular connecting part 32 is generally square, and its side length is greater than the outer diameter of the column body 1. The rectangular connecting part 32 is fixed to the support pile cap 3 by welding. The four corners of the rectangular connecting part 32 are also provided with chamfers. The chamfers remove the four corners of the rectangular connecting part 32 to alleviate stress concentration and make the rectangular connecting part 32 more evenly stressed, thereby improving its load-bearing capacity.

[0041] Reinforcing frames 33 are welded to opposite sides of the rectangular connecting portion 32. The reinforcing frames 33 are rectangular, with their length direction parallel to the axis of the column body 1. The top of the reinforcing frames 33 and the side away from the axis of the column body 1 are open. A reinforcing connecting portion 34 is also provided between the bottom of the reinforcing frames 33 and the top surface of the first abutment portion 31 to improve the connection stability between the reinforcing frames 33 and the support pile cap 3.

[0042] Both the rectangular connecting portion 32 and the first abutting portion 31 have multiple first reinforcing ribs 35 installed on their corresponding end faces. The first reinforcing ribs 35 are fixed by welding and are evenly spaced along the circumferential axis of the column body 1. The first reinforcing ribs 35 and the connecting through holes 311 are arranged at intervals.

[0043] Reference Figure 3 and Figure 4The top of the support pile foot 5 is fixed with a second abutment part 51 for connecting with the bottom of the support standard section 4. The outer diameter of the second abutment part 51 is the same as that of the first abutment part 31, and the second abutment part 51 is also fixed by welding. Both ends of the support standard section 4 are provided with a third abutment part 41 for corresponding abutment with the first abutment part 31 and the second abutment part 51. The structure of the third abutment part 41 is consistent with that of the first abutment part 31.

[0044] The standard section 4 of the bracket is equipped with a second reinforcing rib 42 on one side of each of the two third abutment parts 41. The fixing method and arrangement of the second reinforcing rib 42 are consistent with those of the first reinforcing rib 35.

[0045] The support pile foot 5 has a third reinforcing rib 52 welded and fixed to the bottom surface of the second abutment part 51 for abutting the bottom surface. The length of the third reinforcing rib 52 is the same as the length of the first reinforcing rib 35. The difference is that the inclination angle of the third reinforcing rib 52 is greater than that of the first reinforcing rib 35, so as to increase the contact area between the third reinforcing rib 52 and the ground.

[0046] The first reinforcing rib 35, the second reinforcing rib 42, and the third reinforcing rib 52 are coaxially aligned along the axis of the column body 1. Two sets of mounting portions 43 for installing connecting structures such as tie rods are welded to the side wall of the standard support section 4. Each mounting portion 43 includes two vertically arranged mounting plates with a gap between them for mounting the ends of the tie rods. The two sets of mounting portions 43 are located on one side of each of the two third abutment portions 41, and one end of each mounting portion 43 is in contact with the corresponding end face of the third abutment portion 41.

[0047] Both the second abutment part 51 and the third abutment part 41 have connecting through holes 311 corresponding to the first abutment part 31. The connecting bolt group 2 passes through the connecting through holes 311 of the two mutually fitting abutment parts to fix the support pile cap 3 and the support standard section 4, or the support pile foot 5 and the support standard section 4. The bolts of adjacent connecting bolt groups 2 are inserted in opposite directions to form a more complex fastening structure, allowing the bolts to restrain each other and reducing the probability of loosening.

[0048] To ensure coaxial connection between adjacent bracket sections, both the second abutment portion 51 and the top surface of the upper third abutment portion 41 are provided with positioning ring grooves 511. Positioning blocks 411 for insertion into the positioning ring grooves 511 are fixed to the bottom surfaces of the first abutment portion 31 and the lower third abutment portion 41. The positioning blocks 411 are symmetrically arranged along the axis, and the coaxial fixation of adjacent brackets is ensured through the cooperation of the positioning ring grooves 511 and the positioning blocks 411. A limiting portion 512 for the positioning blocks 411 to abut against is also fixed to the inner wall of the positioning ring groove 511. The curvature of the limiting portion 512 is the same as that of the positioning block 411. When the positioning block 411 and the limiting portion 512 abut against each other, the connecting through holes 311 of adjacent abutment portions correspond to each other.

[0049] The implementation principle of a bridge steel pipe column according to the embodiment of this application is as follows: According to the height of the bridge, a suitable standard support section 4 is selected, the support pile foot 5 is fixed on the ground and fixedly connected to the foundation, and the standard support section 4 and the support pile cap 3 are installed in sequence. During installation, the coaxial connection of two adjacent abutment parts is achieved through the positioning ring groove 511 and the positioning block 411, and finally the fixing is achieved through the connecting bolt group 2.

[0050] 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 steel pipe column for bridges, characterized in that, The support includes a column body (1) and a connecting bolt group (2). The column body (1) includes a support pile cap (3), a support standard section (4) and a support pile foot (5) in sequence along the axial direction. The support pile cap (3) is provided with a first abutting part (31) at the end for abutting one end of the support standard section (4). The support pile foot (5) is provided with a second abutting part (51) at the end for abutting the other end of the support standard section (4). The support standard section (4) is provided with a third abutting part (41) at both ends corresponding to the first abutting part (31) and the second abutting part (51). The first abutting part (31) and the third abutting part (41), the second abutting part (51) and the third abutting part (41) are all fixed by the connecting bolt group (2).

2. A bridge steel pipe column according to claim 1, characterized in that, The support pile cap (3) has a rectangular connecting part (32) for fixing to the bottom of the bridge at one end away from the first abutment part (31), and the four corners of the rectangular connecting part (32) are chamfered.

3. A bridge steel pipe column according to claim 2, characterized in that, The rectangular connecting portion (32) is provided with reinforcing frames (33) on both sides. The reinforcing frames (33) extend toward the first abutting portion (31), and a reinforcing connecting portion (34) is provided between the reinforcing frames (33) and the first abutting portion (31).

4. A bridge steel pipe column according to claim 2, characterized in that, The rectangular connecting part (32) and the first abutting part (31) are each provided with a first reinforcing rib (35) on their respective sides. The first reinforcing ribs (35) are arranged circumferentially along the axis of the column body (1).

5. A bridge steel pipe column according to claim 4, characterized in that, The standard section (4) of the bracket is provided with a second reinforcing rib (42) on one side of each of the two third abutment parts (41), and the second reinforcing rib (42) is arranged circumferentially along the axis of the column body (1).

6. A bridge steel pipe column according to claim 5, characterized in that, The support pile foot (5) is provided with a third reinforcing rib (52) for abutting the ground on the side of the second abutting part (51) away from the support standard section (4). The inclination angle of the third reinforcing rib (52) is greater than that of the second reinforcing rib (42).

7. A bridge steel pipe column according to claim 6, characterized in that, The first reinforcing rib (35), the second reinforcing rib (42), and the third reinforcing rib (52) are coaxially corresponding on the axis of the column body (1).

8. A bridge steel pipe column according to claim 1, characterized in that, The first abutting part (31), the second abutting part (51) and the third abutting part (41) are all provided with connecting through holes (311) for the connecting bolt group (2) to pass through. The connecting through holes (311) are arranged circumferentially along the axis of the column body (1), and the screws of adjacent connecting bolt groups (2) pass through in opposite directions.

9. A bridge steel pipe column according to claim 1, characterized in that, The side wall of the standard section (4) of the bracket is also provided with an installation part (43) for installing the tie rod, and one end of the installation part (43) is fixed to the end face of the third abutment part (41).

10. A bridge steel pipe column according to claim 1, characterized in that, The top surfaces of the second abutment (51) and the third abutment (41) are provided with positioning ring grooves (511). The support pile cap (3) and the support standard section (4) are provided with positioning blocks (411) for insertion into the positioning ring grooves (511). The inner wall of the positioning ring grooves (511) is provided with limiting parts (512) for the positioning blocks (411) to abut.

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