Bridge expansion joint structure
By using components such as protective partitions, L-shaped folding connecting plates and connecting rods in the bridge expansion joint structure, the problem of easy damage to the bridge expansion joint is solved, and higher structural durability and deformation resistance are achieved.
Patent Information
- Application Number
- CN202422799517.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-11-18
AI Technical Summary
Existing bridge expansion joint structures are susceptible to damage, especially when the load is too large, structural failure may occur.
A bridge expansion joint structure including a first support plate and a second support plate is adopted. A protective partition and an L-shaped folding connecting plate are arranged on the interval gap, and they are connected using connecting rods and arc-shaped protective plates. Rubber pads and connecting protruding rods are combined to enhance the stability and protective effect of the structure.
It improves the durability and deformation resistance of the bridge expansion joint structure, can effectively absorb the impact of thermal expansion and contraction and vibration, prevent external impurities from entering, and avoid structural movement and deviation.
Smart Images
Figure CN223329700U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of bridges, and in particular relates to a bridge expansion joint structure. Background Art
[0002] Bridge expansion joints are typically installed between beam ends, between beam ends and abutments, or at hinged joints to accommodate bridge deck deformation. This structure accommodates bridge expansion and contraction due to temperature fluctuations by dividing the bridge deck into several sections along its length, and each section is then divided into several sections along its length. Existing expansion joints effectively absorb and attenuate vibration energy generated by horizontal displacement of the bridge due to external shocks, earthquakes, and other vibrations, thereby improving the bridge structure. However, the ends of existing expansion joints are susceptible to damage, potentially leading to structural failure due to excessive loads. Utility Model Content
[0003] In order to solve the above problems, the present invention proposes a bridge expansion joint structure.
[0004] The present invention is achieved through the following technical solutions:
[0005] A bridge expansion joint structure includes a first support plate and a second support plate, a gap is set between the first support plate and the second support plate, a protective partition is set above the gap, a first convex strip is fixed above the first support plate, and a second convex strip is fixed above the second support plate, a first convex strip facing the gap and a second convex strip facing the gap are respectively provided with a plurality of first arc grooves and a plurality of second arc grooves, an L-shaped folded connecting plate is provided between the first arc groove and the second arc groove; the L-shaped folded connecting plate includes a first transverse strip and a second transverse strip, and the end of the first transverse strip is connected to the end of the second transverse strip. An arc-shaped groove is abutted, and the end of the second transverse bar is abutted with the second arc-shaped groove. The first transverse bar and the second transverse bar are connected to form an L-shaped folded connecting plate. A connecting groove is set at the end where the first transverse bar is connected to the second transverse bar, and a connecting block matching the connecting groove is set at the end where the second transverse bar is connected to the first transverse bar. The size of the connecting groove is larger than the connecting block. Corresponding circular holes are provided on the connecting groove and the connecting block. The vertical connecting rod passes through the circular hole to connect the first transverse bar and the second transverse bar together. The diameter of the connecting rod is smaller than the diameter of the circular hole. The connecting rod passes downward through the protective partition, and a fastening nut is provided at the lower part of the connecting rod.
[0006] Preferably, a first vertical partition is provided downwardly on the side of the first support plate facing the gap, and a second vertical partition is provided downwardly on the side of the second support plate facing the gap. An arc-shaped protective plate is provided between the first vertical partition and the second vertical partition. The arc-shaped protective plate is located below the gap, and both sides of the arc-shaped protective plate are fixedly connected to the first vertical partition and the second vertical partition by fixed anchor rods respectively.
[0007] Preferably, a plurality of connecting protrusions are respectively provided below the edges of the first support plate and the second support plate, and the bottoms of the connecting protrusions are provided with protrusion enlarged ends.
[0008] Preferably, a first rubber pad is provided between the first convex strip and the first support plate, and the first convex strip, the first support plate, and the first rubber pad are fixedly connected together by a plurality of first connecting screws; a second rubber pad is provided between the second convex strip and the second support plate, and the second convex strip, the second support plate, and the second rubber pad are fixedly connected together by a plurality of second connecting screws.
[0009] The present invention ensures the reliability of the structure by arranging an L-shaped folded connecting plate on the interval gap. Even if thermal expansion, contraction or vibration occurs, it can be absorbed by the L-shaped folded connecting plate; the present invention cooperates with the first transverse bar and the second transverse bar, and the ends are connected by a connecting rod, and the connecting rod is then used in conjunction with the protective partition to prevent external impurities from falling into the lower part, and the arc-shaped protective plate is added to provide better protection; the present invention arranges a connecting protrusion under the first support plate and the second support plate to connect them with the external concrete, thereby avoiding movement and offset during use. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural schematic diagram of the present invention;
[0011] Figure 2 This is a schematic diagram of the structure of the present invention when used;
[0012] Figure 3 It is a schematic diagram of the internal structure of the present invention.
[0013] In the figure: 1 first support plate, 2 second support plate, 3 spacing gap, 4 first vertical partition, 5 second vertical partition, 6 first convex strip, 7 second convex strip, 8 L-shaped folded connecting plate, 9 first arcuate groove, 10 second arcuate groove, 11 first transverse strip, 12 second transverse strip, 13 connecting groove, 14 connecting block, 15 connecting rod, 16 fastening nut, 17 protective partition, 18 arcuate protective plate, 19 anchor rod, 20 first rubber pad, 21 first connecting screw, 22 second rubber pad, 23 second connecting screw, 24 connecting convex rod, 25 convex rod enlarged end. DETAILED DESCRIPTION
[0014] In order to clearly illustrate the technical features of this solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.
[0015] This embodiment includes two opposing first and second support plates 1 and 2, with a gap 3 provided between them. A first vertical partition 4 is provided downwardly on the side of the first support plate 1 facing the gap 3. The first vertical partition 4 is not connected to the first support plate 1 and is located only below the first support plate 1. A second vertical partition 5 is provided downwardly on the side of the second support plate 2 facing the gap 3. Similarly, the second vertical partition 5 is not connected to the second support plate 2 and is located only below the second support plate 2. A first ridge 6 is provided above the first support plate 1, a second ridge 7 is provided above the second support plate 2, and an L-shaped folded connecting plate 8 is provided between the first ridge 6 and the second ridge 7.
[0016] A plurality of first arcuate grooves 9 and a plurality of second arcuate grooves 10 are respectively provided on the side of the first ridge 6 facing the gap 3 and the side of the second ridge 7 facing the gap 3. The L-shaped folded connecting plate 8 includes a first transverse bar 11 and a second transverse bar 12, wherein the end of the first transverse bar 11 is placed in the first arcuate groove 9 and abuts against the first arcuate groove 9, and the end of the second transverse bar 12 is placed in the second arcuate groove 10 and abuts against the second arcuate groove 10, and the first transverse bar 11 and the second transverse bar 12 are connected to form an L-shaped folded connecting plate 8. A connecting groove 13 is provided at the end where the first transverse bar 11 is connected to the second transverse bar 12, and a connecting block 14 matching the connecting groove 13 is provided at the end where the second transverse bar 12 is connected to the first transverse bar 11. The connecting block 14 is located in the connecting groove 13 and is connected to the first transverse bar 11, wherein the size of the connecting groove 13 is slightly larger than the connecting block 14, as shown in the attached figure. Figure 2 and 3 As shown, the specific size depends on the specific situation, as long as it can meet the deformation requirements, so that after the connecting block 14 is placed in the connecting groove 13, the connecting block 14 still has a certain amount of displacement space. The first transverse bar 11 and the second transverse bar 12 are connected by a vertically arranged connecting rod 15. Corresponding circular holes are provided on the connecting groove 13 and the connecting block 14. The diameter of the circular hole is larger than the diameter of the connecting rod 15, that is, the connecting groove 13 and the connecting block 14 can both have a certain amount of displacement space relative to the connecting rod 15. Similarly, the specific size depends on the specific situation, as long as it can meet the deformation requirements. The connecting rod 15 passes through the circular holes on the connecting groove 13 and the connecting block 14 to connect the first transverse bar 11 and the second transverse bar 12 together. A protective partition 17 is provided above the above-mentioned gap 3. The protective partition 17 overlaps between the first support plate 1 and the second support plate 2. The connecting rod 15 passes downward through the protective partition 17. The lower part of the connecting rod 15 is provided with a fastening nut 16.
[0017] An arc-shaped protective plate 18 is provided between the first vertical partition 4 and the second vertical partition 5, and is provided below the gap 3. Both sides of the arc-shaped protective plate 18 are fixedly connected to the first vertical partition 4 and the second vertical partition 5 by fixing anchor rods 19 respectively.
[0018] Preferably, a first rubber pad 20 is provided between the first ridge 6 and the first support plate 1, and the first ridge 6, the first support plate 1, and the first rubber pad 20 are fixedly connected by a plurality of first connecting screws 21. A second rubber pad 22 is provided between the second ridge 7 and the second support plate 2, and the second ridge 7, the second support plate 2, and the second rubber pad 22 are fixedly connected by a plurality of second connecting screws 23.
[0019] A plurality of connecting protrusions 24 are respectively provided below the edges of the first supporting plate 1 and the second supporting plate 2 , and a protrusion enlarged end 25 is provided at the bottom of the connecting protrusions 24 .
[0020] During use, the first support plate 1 and the second support plate 2 are pre-embedded in concrete with a gap 3 provided therebetween. A first vertical partition 4 is provided under the first support plate 1, and a second vertical partition 5 is provided under the second support plate 2. First ridges 6 and second ridges 7 are fixedly provided. A first connecting screw 21 is provided through the first ridge 6, the first support plate 1, and the first rubber pad 20. A second connecting screw is provided through the second ridge 7, the second support plate 2, and the second rubber pad. An arc-shaped protective plate 18 is installed, a protective partition 17 is placed, and an L-shaped folded connecting plate 8 is installed. The present invention utilizes the L-shaped folded connecting plate 8, so that even if thermal expansion, contraction, or vibration occurs, the L-shaped folded connecting plate 8 can absorb the thermal expansion, contraction, or vibration.
[0021] The above are merely embodiments of the present invention and are not intended to limit the present invention. It will be apparent to those skilled in the art that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are intended to be included within the scope of the claims of the present invention.
Claims
1. A bridge expansion joint structure, characterized by: The invention comprises a first support plate (1) and a second support plate (2), wherein a gap (3) is provided between the first support plate (1) and the second support plate (2), a protective partition (17) is provided above the gap (3), a first convex strip (6) is fixed above the first support plate (1), and a second convex strip (7) is fixed above the second support plate (2), a side of the first convex strip (6) facing the gap (3) and a side of the second convex strip (7) facing the gap (3) are respectively provided with a plurality of first arc grooves (9) and a plurality of second arc grooves (10), an L-shaped folded connecting plate (8) is provided between the first arc groove (9) and the second arc groove (10); the L-shaped folded connecting plate (8) comprises a first transverse strip (11) and a second transverse strip (12), an end of the first transverse strip (11) abuts against the first arc groove (9), and an end of the second transverse strip (12) abuts against the first arc groove (9). The end of (12) abuts against the second arc groove (10), the first transverse bar (11) and the second transverse bar (12) are connected to form an L-shaped folded connecting plate (8), the end where the first transverse bar (11) and the second transverse bar (12) are connected is provided with a connecting groove (13), the end where the second transverse bar (12) and the first transverse bar (11) are connected is provided with a connecting block (14) matching the connecting groove (13), the size of the connecting groove (13) is larger than the connecting block (14), corresponding circular holes are provided on the connecting groove (13) and the connecting block (14), a vertical connecting rod (15) passes through the circular hole to connect the first transverse bar (11) and the second transverse bar (12) together, the diameter of the connecting rod (15) is smaller than the diameter of the circular hole, the connecting rod (15) passes downward through the protective partition (17), and a fastening nut (16) is provided at the lower part of the connecting rod (15).
2. The bridge expansion joint structure according to claim 1, characterized in that: A first vertical partition (4) is provided downwardly on the side of the first support plate (1) facing the interval gap (3), and a second vertical partition (5) is provided downwardly on the side of the second support plate (2) facing the interval gap (3). An arc-shaped protective plate (18) is provided between the first vertical partition (4) and the second vertical partition (5). The arc-shaped protective plate (18) is located below the interval gap (3), and both sides of the arc-shaped protective plate (18) are fixedly connected to the first vertical partition (4) and the second vertical partition (5) via fixing anchor rods (19).
3. The bridge expansion joint structure according to claim 1, characterized in that: A plurality of connecting protruding rods (24) are respectively provided below the edges of the first supporting plate (1) and the second supporting plate (2), and a protruding rod enlarged end (25) is provided at the bottom of the connecting protruding rods (24).
4. The bridge expansion joint structure according to claim 1, wherein: A first rubber pad (20) is provided between the first convex strip (6) and the first support plate (1), and the first convex strip (6), the first support plate (1), and the first rubber pad (20) are fixedly connected together via a plurality of first connecting screws (21); a second rubber pad (22) is provided between the second convex strip (7) and the second support plate (2), and the second convex strip (7), the second support plate (2), and the second rubber pad (22) are fixedly connected together via a plurality of second connecting screws (23).