Bridge expansion joint
By designing a combined structure of V-shaped rubber strips and F-shaped steel in the bridge expansion joints and setting a baffle on the top, the problems of sealed rubber strips aging and gravel damage in high temperature environments are solved, achieving the effect of extending service life.
Patent Information
- Application Number
- CN202422198035.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-06
AI Technical Summary
The sealing rubber strips of existing bridge expansion joints accelerate aging in high temperature environments, resulting in a shortened service life and are easily damaged by gravel jammed joints.
A bridge expansion joint is designed, adopting a combined structure of V-shaped rubber strips and F-shaped steel, and a first steel plate and a second steel plate are provided on the top of the F-shaped steel, and the first baffle and the second baffle are connected at the bottom end to block sunlight and block gravel.
It effectively extends the service life of the V-shaped rubber strip, avoids direct sunlight and direct contact with gravel, and improves the durability of the seal strip.
Smart Images
Figure CN222975650U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bridge engineering, in particular to a bridge expansion joint. Background Art
[0002] For the existing butt joint type expansion joint, a sealing rubber strip needs to be clamped between a pair of profiled steels to play a role in preventing water seepage. Ideally, the service life of the sealing rubber strip is 5 - 8 years. However, currently, the temperature in summer is generally high, especially in the western region. With continuous sunlight in summer, the high temperature will cause the sealing rubber strip to age rapidly, resulting in the actual effective life of the rubber strip being only about two years. Moreover, if gravel gets stuck in the joint, it may even pierce the rubber sealing strip, causing the rubber sealing strip to fail. Summary of the Utility Model
[0003] To solve the problems mentioned in the background art, the purpose of the utility model is to provide a bridge expansion joint.
[0004] To achieve the above goal, the technical solution of the utility model is as follows:
[0005] A bridge expansion joint includes a V-shaped rubber strip and two F-shaped steels. The two F-shaped steels are placed mirror-symmetrically. The two ends of the V-shaped rubber strip are respectively embedded in the grooves of the two F-shaped steels. A plurality of anchor bars are fixedly connected to the opposite sides of the two F-shaped steels. The tops of the opposite surfaces of the two F-shaped steels are respectively connected with a first steel plate and a second steel plate by a plurality of bolts. The first steel plate and the second steel plate are respectively attached to the tops of the opposite surfaces of the two F-shaped steels. The bottom end of the first steel plate is connected with a first baffle, and the bottom end of the second steel plate is connected with a second baffle. The projections of the first baffle and the second baffle in the vertical direction partially overlap.
[0006] Further, both the first baffle and the second baffle are horizontally arranged, and the second baffle is spaced below the first baffle.
[0007] The beneficial effect of the utility model is that the first baffle and the second baffle can block the V-shaped rubber strip, avoiding direct sunlight and preventing gravel from directly contacting the V-shaped rubber strip, which can effectively extend the service life of the V-shaped rubber strip. Description of the Drawings
[0008] Figure 1 is an isometric view of an embodiment of the utility model;
[0009] Figure 2 is a cross-sectional view of an embodiment of the utility model.
[0010] Description of the drawing reference numerals: 1. V-shaped rubber strip; 2. F-shaped steel; 21. Anchor bar; 22. Screw hole; 3. Bolt; 4. First steel plate; 41. First baffle; 5. Second steel plate; 51. Second baffle. Detailed implementation manners
[0011] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention shall fall within the protection scope of the present invention.
[0012] As Figure 1 - Figure 2 shown, a bridge expansion joint includes a V-shaped rubber strip 1 and two F-shaped steels 2. The two F-shaped steels 2 are placed mirror-symmetrically. The two ends of the V-shaped rubber strip 1 are respectively embedded in the grooves of the two F-shaped steels 2. A plurality of anchor bars 21 are fixedly connected to the opposite sides of the two F-shaped steels 2 at intervals along their respective lengths. A number of screw holes 22 are arranged at intervals along the lengths of the tops of the opposite surfaces of the two F-shaped steels 2. A first steel plate 4 and a second steel plate 5 are respectively connected to the tops of the opposite surfaces of the two F-shaped steels 2 by a plurality of bolts 3. The first steel plate 4 and the second steel plate 5 are respectively attached to the tops of the opposite surfaces of the two F-shaped steels 2. A first baffle 41 is connected to the bottom end of the first steel plate 4, and a second baffle 51 is connected to the bottom end of the second steel plate 5. The first baffle 41 and the second baffle 51 are both horizontally arranged. The second baffle 51 is arranged at intervals below the first baffle 41. The projected parts of the first baffle 41 and the second baffle 51 in the vertical direction overlap. The lengths of the first baffle 41, the first steel plate 4, the second baffle 51, and the second steel plate 5 are all equivalent to the length of the F-shaped steel 2.
[0013] The first baffle 41 and the second baffle 51 can block the V-shaped rubber strip to avoid direct sunlight. Moreover, the first baffle 41 and the second baffle 51 are arranged at intervals and will not affect the drainage performance. The first baffle 41 and the second baffle 51 can also prevent gravel from directly contacting the V-shaped rubber strip 1, which can effectively extend the service life of the V-shaped rubber strip 1.
[0014] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A bridge expansion joint, comprising a V-shaped rubber strip (1) and two F-shaped steels (2), wherein the two F-shaped steels (2) are placed in mirror image, the two ends of the V-shaped rubber strip (1) are respectively embedded in the embedding grooves of the two F-shaped steels (2), and the opposite sides of the two F-shaped steels (2) are fixedly connected with a plurality of anchor bars (21), characterized in that: The tops of the opposite surfaces of the two F-shaped steels (2) are respectively connected with a first steel plate (4) and a second steel plate (5) by a plurality of bolts (3); the first steel plate (4) and the second steel plate (5) are respectively attached to the tops of the opposite surfaces of the two F-shaped steels (2); the bottom end of the first steel plate (4) is connected with a first baffle (41); the bottom end of the second steel plate (5) is connected with a second baffle (51); the projections of the first baffle (41) and the second baffle (51) in the vertical direction partially overlap.
2. A bridge expansion joint according to claim 1, characterized in that: The first baffle plate (41) and the second baffle plate (51) are both arranged horizontally, and the second baffle plate (51) is arranged below the first baffle plate (41) at an interval.