Tension-shear-resistant cylindrical surface support with certain beam falling prevention function
By installing upper swing components and tensile shear components on the bridge bearings, and using locking bolts and nuts to limit the vertical displacement of the bearings, the problem of the bearings becoming detached due to wind loads in special locations of the bridge is solved, and the bearings' ability to prevent beams from falling off is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2026-03-31
AI Technical Summary
In bridge structures, especially in special locations such as continuous beam piers, cable-stayed bridge piers, and large suspension bridges, wind loads may cause the supports to become detached from each other, thus leading to the risk of beam collapse.
A tensile-shear cylindrical support with a certain anti-fall beam function is adopted. Vertical positioning and fixing are achieved by setting an upper swing component and a tensile-shear component between the upper support plate and the lower support assembly. The vertical displacement of the support is limited by the cooperation of locking bolts and nuts.
This effectively prevents the supports from becoming detached from each other, improves the stability and safety of the bridge structure, and prevents the risk of beam falling.
Smart Images
Figure CN224063261U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of support, especially the anti -tensile shear cylindrical surface support with certain anti -beam falling function. BACKGROUND
[0002] In bridge and other civil engineering, the upper structure and the lower structure pass through the support to transfer load, displacement and rotation angle, the cylindrical surface steel support can meet the bridge deformation requirement and the stability good characteristics when the bridge is erected because of its simple structure, good stress performance and material saving, is one of the most commonly used supports in the market.
[0003] When the bridge pier settlement, earthquake and other natural disasters occur, it may cause the support to have large displacement and rotation angle, and further affect the stability and safety of the bridge structure, especially for some special position bridges, such as continuous beam side pier, cable-stayed bridge side pier, large suspension bridge under wind load, which may cause the support to have emptying up and down, thereby causing the problem of beam falling risk. UTILITY MODEL CONTENTS
[0004] The utility model solves the technical problem that in some special position bridges, such as continuous beam side pier, cable-stayed bridge side pier, large suspension bridge under wind load, which may cause the support to have emptying up and down, thereby causing the problem of beam falling risk.
[0005] The utility model solves the technical problem by adopting the following technical scheme: the anti -tensile shear cylindrical surface support with certain anti -beam falling function, including the upper support plate, the lower end of the upper support plate is equipped with the upper swing component, the lower end of the upper swing component is equipped with the lower support component, both sides of the upper support plate are equipped with the anti -tensile shear component, and the anti -tensile shear component is limited and fixed vertically to the upper support plate and the lower support component.
[0006] The effect of the above components is that when in use, the upper swing component is arranged between the upper support plate and the lower support component, and the anti -tensile shear component is arranged between the upper support plate and the lower support component, which is limited and fixed vertically, avoiding the emptying up and down of the support, thereby causing the problem of beam falling risk.
[0007] Preferably, the upper support plate is provided with a baffle around, and the size of the baffle is matched with the size of the swing block.
[0008] The effect of the above components is that the relative displacement of the upper support plate and the swing block is limited by using the baffle on the upper support plate.
[0009] Preferably, the upper swing component includes a swing block, the swing block is arranged at the lower end of the upper support plate, the lower end of the swing block is fixedly connected with a curved stainless steel plate, and the both sides of the curved stainless steel plate are provided with side sliding plates.
[0010] Preferably, the lower support assembly comprises a lower support plate, the upper end of the lower support plate is provided with a curved sliding plate, and the side of the lower support plate is provided with a side stainless steel plate.
[0011] Preferably, the upper support plate is provided with a groove on both sides, the bottom arc of the groove of the upper support plate is concentric with the cylindrical surface arc of the upper swing block, and the first through hole is arranged at the bottom arc of the groove of the upper support plate.
[0012] Preferably, the lower support plate is provided with a locking threaded hole on both sides, and the size of the locking threaded hole on both sides of the lower support plate is matched with the size of the first through hole at the bottom arc of the groove of the upper support plate.
[0013] Preferably, the anti-tension shear assembly comprises a sliding block arranged in the groove of the upper support plate, a second through hole is arranged in the sliding block, a terngul locking bolt is inserted into the second through hole on one side of the sliding block, and the size of the locking bolt is matched with the size of the first through hole at the bottom arc of the groove of the upper support plate, the second through hole in the sliding block and the locking threaded hole on both sides of the lower support plate.
[0014] The effect achieved by the above-mentioned components is that the locking bolt passes through the first through hole arranged at the bottom arc of the groove of the upper support plate and the second through hole arranged on the sliding block, is screwed into the locking threaded hole arranged on both sides of the lower support plate, is fixed by arranging a locking nut on the locking bolt, and the reinforcement of the upper support plate and the lower support plate is completed. By using the anti-tension shear assembly, when the support is subjected to vertical tension, the upper support plate moves upward until the bottom surface of the locking bolt contacts the top surface of the sliding block, then the locking bolt limits the vertical displacement of the support, avoids the disengagement of the support upward and downward, thereby avoiding the risk of beam falling, and improving the use effect of the anti-tension shear cylindrical support.
[0015] In summary, the beneficial effects of the utility model are:
[0016] By using the anti-tension shear assembly, when the support is subjected to vertical tension, the upper support plate moves upward until the bottom surface of the locking bolt contacts the top surface of the sliding block, then the locking bolt limits the vertical displacement of the support, avoids the disengagement of the support upward and downward, thereby avoiding the risk of beam falling, and improving the use effect of the anti-tension shear cylindrical support. BRIEF DESCRIPTION OF DRAWINGS
[0017] The utility model will be further described below in combination with the drawings and examples.
[0018] Fig. 1 It is a horizontal bridge structure schematic view of the fixed support of the utility model;
[0019] Fig. 2 It is a horizontal bridge structure schematic view of the fixed support of the utility model;
[0020] Fig. 3 This is a schematic diagram of the structure of the fixed support of this utility model that generates rotation.
[0021] Legend: 1. Upper support plate; 2. Upper swing assembly; 21. Upper swing block; 22. Curved stainless steel plate; 23. Side sliding plate; 3. Lower support assembly; 31. Lower support plate; 32. Curved sliding plate; 33. Side stainless steel plate; 4. Tensile shear assembly; 41. Sliding block; 42. Locking bolt; 43. Locking nut. Detailed Implementation
[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] Figs. 1 to 3 The illustrated tensile-shear cylindrical support with a certain anti-beam-falling function includes an upper support plate 1, an upper swing assembly 2 at the lower end of the upper support plate 1, a lower support assembly 3 at the lower end of the upper swing assembly 2, and tensile-shear assemblies 4 on both sides of the upper support plate 1. The tensile-shear assemblies 4 vertically limit and fix the upper support plate 1 and the lower support assembly 3. In use, the upper swing assembly 2 is placed between the upper support plate 1 and the lower support assembly 3, and the tensile-shear assemblies 4 are placed between the upper support plate 1 and the lower support assembly 3 for vertical limiting and fixing, preventing the support from becoming detached and thus avoiding the risk of beam falling.
[0025] Figs. 1 to 3The upper support plate 1 shown is surrounded by baffles, the size of which is adapted to the size of the upper swing block 21. The baffles on the upper support plate 1 limit relative displacement between the upper support plate 1 and the upper swing block 21. The upper swing assembly 2 includes the upper swing block 21, which is located at the lower end of the upper support plate 1. A curved stainless steel plate 22 is fixedly connected to the lower end of the upper swing block 21, and side sliding plates 23 are provided on both sides of the curved stainless steel plate 22. The lower support assembly 3 includes a lower support plate 31, with a curved sliding plate 32 at its upper end and side stainless steel plates 33 on its sides. The curved stainless steel plate 22 on the bottom surface of the upper swing block 21 and the curved sliding plate 32 embedded on the top surface of the lower support plate 31 form curved sliding friction in the transverse direction. The side stainless steel plates 33 on both sides of the inner cavity of the lower support plate 31 and the side sliding plates 23 embedded on both sides of the upper swing assembly 2 form lateral rotational friction.
[0026] Figs. 1 to 3 The locking threaded holes on both sides of the lower support plate 31 shown are adapted to the size of the first through hole at the bottom arc of the groove of the upper support plate 1.
[0027] Figs. 1 to 3 The tensile shear assembly 4 shown includes a sliding block 41, which is disposed inside the groove of the upper support plate 1. A second through hole is provided inside the sliding block 41. A gull-shaped locking bolt 42 is inserted into the second through hole on one side of the sliding block 41. The size of the locking bolt 42 is compatible with the size of the first through hole at the bottom arc of the groove of the upper support plate 1, the second through hole inside the sliding block 41, and the locking threaded holes on both sides of the lower support plate 31. The locking bolt 42 passes through the first through hole on the bottom surface of the groove of the upper support plate 1 and the second through hole on the sliding block 41, and is then screwed into the locking threaded holes on both sides of the lower support plate 31. A locking nut 43 is installed on the locking bolt 42 for fixation, thus completing the reinforcement of the upper support plate 1 and the lower support plate 31. By using the tensile shear assembly 4, when the support is subjected to vertical tension, the upper support plate 1 moves upward until the bottom surface of the locking bolt 42 contacts the top surface of the sliding block 41. Then, the locking bolt 42 will restrict the support from continuing to have vertical displacement, avoiding the support from becoming dislodged and thus preventing the risk of beam falling. This improves the performance of the tensile shear cylindrical support.
[0028] Figs. 1 to 3 After the support is displaced, the upper swing assembly 2 and the sliding block 41 will become misaligned. Rotation at this point will cause a change in the height of the sliding block 41. When the support is displaced to the left and rotated clockwise, the height of the sliding block 41 increases; when the support is displaced to the left and rotated counterclockwise, the height of the sliding block 41 decreases. Therefore, a certain gap needs to be left between the bottom surface of the support locking bolt 42 and the top surface of the sliding block 41 before the locking nut 43 is used to secure it.
[0029] Working principle: During use, an upper swing assembly 2 is set between the upper support plate 1 and the lower support assembly 3. The curved stainless steel plate 22 on the bottom surface of the upper swing block 21 forms curved sliding friction with the curved sliding plate 32 embedded on the top surface of the lower support plate 31. In the transverse direction, the side stainless steel plates 33 on both sides of the inner cavity of the lower support plate 31 form lateral rotational friction with the side sliding plates 23 embedded on both sides of the upper swing assembly 2. In addition, an anti-tensile shear assembly 4 is set between the upper support plate 1 and the lower support assembly 3 for vertical limiting and fixing to prevent the support from becoming loose and thus causing the risk of beam falling. The locking bolt 42 passes through the first through hole on the bottom surface of the groove of the upper support plate 1 and the second through hole on the sliding block 41, and is then screwed into the locking threaded holes on both sides of the lower support plate 31. A locking nut 43 is installed on the locking bolt 42 for fixation, thus completing the reinforcement of the upper support plate 1 and the lower support plate 31. By using the tensile shear assembly 4, when the support is subjected to vertical tension, the upper support plate 1 moves upward until the bottom surface of the locking bolt 42 contacts the top surface of the sliding block 41. Then, the locking bolt 42 will restrict the support from continuing to have vertical displacement, avoiding the support from becoming dislodged and thus preventing the risk of beam falling. This improves the performance of the tensile shear cylindrical support.
[0030] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A tensile-shear cylindrical bearing with a certain anti-beam-falling function, comprising an upper bearing plate (1), characterized in that: The lower end of the upper support plate (1) is provided with an upper swing assembly (2), the lower end of the upper swing assembly (2) is provided with a lower support assembly (3), both sides of the upper support plate (1) are provided with a tensile shear resisting assembly (4), and the tensile shear resisting assembly (4) limits and fixes the upper support plate (1) and the lower support assembly (3) vertically.
2. The anti-pulling shear cylindrical surface support with the function of preventing the falling beam according to claim 1, characterized in that: The upper support plate (1) is provided with a baffle around, and the size of the baffle is matched with the size of the upper swing block (21).
3. The anti-pulling shear cylindrical surface support with the function of preventing the falling beam according to claim 1, characterized in that: The upper swing assembly (2) comprises an upper swing block (21), the upper swing block (21) is arranged at the lower end of the upper support plate (1), the lower end of the upper swing block (21) is fixedly connected with a curved stainless steel plate (22), and both sides of the curved stainless steel plate (22) are provided with side sliding plates (23).
4. The anti-pulling shear cylindrical surface support with the function of preventing the falling beam according to claim 2, characterized in that: The lower support assembly (3) comprises a lower support plate (31), the upper end of the lower support plate (31) is provided with a curved sliding plate (32), and the side of the lower support plate (31) is provided with a side stainless steel plate (33).
5. The anti-pulling shear cylindrical surface support with the function of preventing the falling beam according to claim 3, characterized in that: Both sides of the upper support plate (1) are provided with grooves, the groove bottom surface arc of the upper support plate (1) is concentric with the cylindrical surface arc of the upper swing block (21), and the first through hole is arranged at the groove bottom surface arc of the upper support plate (1).
6. The anti-pulling shear cylindrical surface support with the function of preventing the falling beam according to claim 4, characterized in that: The lower support plate (31) is provided with locking threaded holes on both sides, and the size of the locking threaded holes on both sides of the lower support plate (31) is matched with the size of the first through hole at the groove bottom surface arc of the upper support plate (1).
7. The anti-pulling shear cylindrical surface support with the function of preventing the falling beam according to claim 5, characterized in that: The tensile shear resisting assembly (4) comprises a sliding block (41), the sliding block (41) is arranged in the groove of the upper support plate (1), the second through hole is arranged in the sliding block (41), the fishing gull locking bolt (42) is inserted into the second through hole on one side of the sliding block (41), and the size of the locking bolt (42) is matched with the size of the first through hole at the groove bottom surface arc of the upper support plate (1), the second through hole in the sliding block (41) and the locking threaded holes on both sides of the lower support plate (31).