CN220927504U - Novel expansion joint structure - Google Patents
Novel expansion joint structure Download PDFInfo
- Publication number
- CN220927504U CN220927504U CN202322821228.4U CN202322821228U CN220927504U CN 220927504 U CN220927504 U CN 220927504U CN 202322821228 U CN202322821228 U CN 202322821228U CN 220927504 U CN220927504 U CN 220927504U
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- China
- Prior art keywords
- expansion joint
- rubber strip
- pair
- joint structure
- novel expansion
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 62
- 239000010959 steel Substances 0.000 claims abstract description 62
- 230000002146 bilateral effect Effects 0.000 claims abstract description 4
- 239000002390 adhesive tape Substances 0.000 abstract description 12
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 2
- 230000003139 buffering effect Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000035929 gnawing Effects 0.000 description 1
- 244000237330 gutta percha tree Species 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- -1 sundries Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
- Road Paving Structures (AREA)
Abstract
The utility model belongs to the technical field of bridge engineering construction parts, and particularly provides a novel expansion joint structure, which mainly adopts the technical scheme that: the anti-dust steel comprises a pair of section steels, wherein rubber strips are arranged between the pair of section steels, are of a bilateral symmetry structure and are divided into a dustproof part, a protruding part, a deformation part and a through hole; the dustproof part is positioned at the upper part of the rubber strip, the surface is smooth, the protruding part is positioned at the edge of the rubber strip, the deformation part is positioned at the middle part of the rubber strip, the through hole is arranged in the middle of the deformation part, and the auxiliary buffer mechanism is also arranged; in the use of expansion joint, the adhesive tape is almost leveled with the road surface, and rubbish is difficult to drop on the adhesive tape, even rubbish drops on the adhesive tape simultaneously, also is convenient for clean, and then prevent to drop to the gap inside, when can conveniently clear up, still can guarantee waterproof effect, can also cushion the energy dissipation to the expansion joint displacement time, ensures that the vehicle is smooth and easy, no jump and noise when driving, and is more comfortable.
Description
Technical Field
The utility model relates to the technical field of bridge engineering construction parts, in particular to a novel expansion joint structure.
Background
The expansion joint is an important auxiliary facility of the bridge, is arranged between two beam ends, between the beam ends and the bridge abutment or at the hinge position of the bridge, directly bears the repeated impact action of the wheel load, is exposed in the nature for a long time, and is in a severe environment. The damage of the expansion joint not only affects the travelling comfort and increases noise, but also is easy to cause traffic jam and even endanger travelling safety, thereby leading to serious life safety hidden trouble. The expansion joint damage is mainly expressed in the following aspects: the first is that the cement concrete is damaged, mainly comprising cement concrete cracks, gnawing edges, surface peeling, cement concrete fracture and fragmentation, and concrete pitting surface fracture in an anchoring area, local damage and rib exposure. The damage can cause vehicle jump and noise when the vehicle passes, and when damaged exposed steel bars are serious, the exposed steel bars can threaten the safety of the passing vehicle; the second expansion joint is filled with sundries such as sand, garbage and the like, and the expansion capability is lost; the third expansion joint rubber strip is broken and falls off, the rubber strip is often filled with dust and broken stone, the breakage of the rubber strip is accelerated, and rainwater enters the bridge body through the broken and falling-off parts of the rubber strip, so that water damage is caused to other parts of the bridge; fourth, because bridge deck settlement is different or the seam of bridge expansion joint anchoring cement concrete and bituminous paving can not be effectively connected, be in rigidity and flexible meeting position, produce vertical deformation easily, and then the dislocation appears, and the expansion joint both ends can produce small difference in height plane, can beat when the vehicle passes through, expansion joint department jump the car promptly. Aiming at the problems existing in the prior art, it is necessary to provide a novel expansion joint structure.
Disclosure of utility model
The utility model aims to provide a novel expansion joint structure so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
A novel expansion joint structure comprises a pair of section steels, wherein rubber strips are arranged between the pair of section steels, are of a bilateral symmetry structure and are divided into a dustproof part, a protruding part, a deformation part and a through hole; wherein,
Dustproof part: the dustproof part is positioned at the upper part of the rubber strip, has a flat surface, and has the main functions of preventing dust, sundries or other external substances from entering the inside of the expansion joint structure, keeping the inside of the expansion joint clean and preventing dirt accumulation, thereby prolonging the service life of the structure;
A boss: the protruding part is positioned at the edge of the rubber strip and is used for connecting the rubber strip with the section steel, and the shape of the protruding part is matched with the shape of the section steel mounting groove;
Deformation part: the deformation part is positioned in the middle of the rubber strip, allows the rubber strip to elastically deform during the telescopic movement, can adapt to the change of the expansion joint, and deforms along with the expansion joint under different temperature and load conditions;
and (3) through holes: the through holes are holes arranged in the middle of the deformation part and are used for reducing the rigidity of the rubber strip, so that the rubber strip is easier to deform, the through holes can also help to reduce the weight of materials and improve the flexibility of the rubber strip; during the expansion joint change, the through holes allow the rubber strips to freely stretch and deform so as to adapt to the expansion joint change.
Preferably, the height h1 of the dustproof part is 0.25-0.35 times of the height h of the rubber strip, and the width d1 of the dustproof part is 0.55-0.65 times of the width d of the rubber strip.
Preferably, the through hole is elliptical, the major axis a of the ellipse is 0.6-0.7 times of the height of the rubber strip, and the minor axis b of the ellipse is 0.3-0.4 times of the width d of the rubber strip.
Preferably, the bottom of the deformation part is provided with a steel plate with the same outline as the deformation part, and the thickness of the steel plate is 0.2-0.8mm.
Preferably, the pair of section steel may be an F section steel, a C section steel or an E section steel.
Preferably, the shape of the protruding part is matched with that of the mounting groove of the section steel, the protruding part can be clamped in the mounting groove of the section steel, connection with the section steel is realized, and the rubber strip is prevented from falling out of the mounting groove.
Preferably, in order to limit, the pair of profile steel bottoms are connected through an auxiliary buffer mechanism, and the pair of profile steel bottoms can also play a role in buffering and dissipating energy.
The auxiliary buffer mechanism comprises limit rods which are equidistantly arranged between a pair of profile steels, limit balls are symmetrically arranged at two ends of the limit rods, and buffer grooves matched with the limit balls are formed in the pair of profile steels.
Preferably, in order to avoid hard contact and play a role in buffering, a gasket is fixedly arranged in the buffering groove and matched with the limiting ball.
Preferably, in order to facilitate the assembly with the bridge span structure, the firmness is ensured, and the anchor bars are arranged at the equidistant positions at the ends of the pair of profile steels, which are far away from each other, and are matched with the bridge span structure.
Compared with the prior art, the utility model has the beneficial effects that:
Through dustproof part and deformation portion of rubber adhesive tape, in the use of expansion joint, the adhesive tape is almost leveled with the road surface, and rubbish is difficult to drop on the adhesive tape, even on rubbish dropped the adhesive tape, also be convenient for clean simultaneously, and then prevent rubbish from dropping to the gap inside, in can conveniently clear up, still can guarantee waterproof effect, improve the life of adhesive tape;
The steel plates at the bottom of the deformation part can strengthen and support the deformation part, provide additional rigidity, help to maintain the stability and structural integrity of the rubber strip, disperse stress, reduce stress concentration, help to prolong the service life of the expansion joint and reduce potential damage. In addition, the addition of the thin steel plate also provides additional protection, prevents the bottom of the rubber strip from being in direct contact with the external environment or external force, and reduces the abrasion of the rubber strip;
the auxiliary buffer mechanism can ensure that the expansion joint can freely stretch and retract in a pair of directions parallel to and perpendicular to the axis of the bridge, is firm and reliable, can buffer and dissipate energy when the expansion joint is displaced, and ensures smoothness, no jump and noise and comfort when a vehicle drives.
Drawings
FIG. 1 is a schematic view of an expansion joint structure of the present utility model;
FIG. 2 is a schematic structural view of a section steel in the expansion joint structure of the present utility model;
FIG. 3 is a schematic view of the structure of the stop lever and stop ball of the present utility model;
FIG. 4 is a schematic view of the structure of the rubber strip of the present utility model;
FIG. 5 is a schematic dimensional view of a rubber strip of the present utility model;
FIG. 6 is a schematic view showing the combination of the boss and the profile steel according to the present utility model.
In the figure: 1. section steel; 2. a rubber strip; 21. a dust-proof part; 22. a boss; 23. a deformation section; 24. a through hole; 3. anchor bars; 4. a limit rod; 5. a mounting groove; 6. a buffer tank; 7. a gasket; 8. a limit ball; 9. a steel plate; h. rubber strip height; h1, the height of the dustproof part; d. rubber strip width; d1, dustproof part width; a. an elliptical major axis; b. elliptical minor axis.
Description of the embodiments
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
Referring to fig. 1-6, an embodiment of the present utility model is provided: the utility model provides a novel expansion joint structure, is including a pair of shaped steel 1 that is used for carrying out the installation of being connected with expansion joint such as bridge, and accessible anchor 3 between shaped steel 1 and the concrete are installed fixedly, and shaped steel 1 and anchor 3 accessible welding or integrated into one piece, anchor 3 and concrete accessible are pour fixedly, are provided with rubber strip 2 between a pair of shaped steel 1, and rubber strip is bilateral symmetry structure, divide into dustproof part 21, bellying 22, deformation 23, through-hole 24.
Dust-proof portion 21: the dust-proof part 21 is located at the upper part of the rubber strip 2, has a flat surface, and has the main function of preventing dust, sundries, water or other external substances from entering the inside of the expansion joint structure, keeping the inside of the expansion joint clean, preventing dirt accumulation, and prolonging the service life of the structure.
Boss 22: the protruding part 22 is located at the edge of the rubber strip, which functions to connect the rubber strip with the section steel, and the shape of the protruding part 22 matches the shape of the section steel installation groove 5.
Deformation portion 23: the deformation part 23 is positioned in the middle of the rubber strip, allows the rubber strip to elastically deform during the expansion and contraction movement, and can adapt to the change of the expansion joint, and the deformation is carried out along with the expansion joint under different temperature and load conditions.
Through hole 24: the through holes are holes arranged in the middle of the deformation parts and are used for reducing the rigidity of the rubber strips, so that the rubber strips are easier to deform, the through holes can also help to reduce the weight of materials and improve the flexibility of the rubber strips. The through holes allow the rubber strip to flex and deform freely during the expansion joint changes.
The height h1 of the dustproof part 21 is 0.25-0.35 times of the height h of the rubber strip, and the width d1 of the dustproof part 21 is 0.55-0.65 times of the width d of the rubber strip.
The through hole 24 is elliptic, the major axis a of the elliptic shape is 0.6-0.7 times of the height of the rubber strip, and the minor axis b of the elliptic shape is 0.3-0.4 times of the width d of the rubber strip.
The pair of section steel 1 may be F-section steel, C-section steel or E-section steel.
The shape of the protruding part 22 of the rubber strip is matched with the shape of the installation groove 5 of the section steel 1, and the rubber strip can be clamped in the installation grooves 5 of the pair of section steel 1 to realize the connection with the section steel 1 and avoid the rubber strip from falling out of the installation groove 5.
As a further embodiment of the present utility model, the bottom of the deformation portion 23 may be further provided with a steel plate 9 having the same outline as the deformation portion 23, and the thickness of the steel plate 9 is 0.2-0.8mm.
As a further embodiment of the present utility model, the bottoms of a pair of section steel 1 are connected by an auxiliary buffer mechanism. The auxiliary buffer mechanism comprises limit rods 4 (the quantity of which is set according to the actual length of expansion joints such as bridges and the like and can be set at intervals of 30-50 cm) which are equidistantly arranged between a pair of section steel 1, limit balls 8 (the material is the same as that of the limit rods 4 and can be integrally manufactured) are welded at two ends of the limit rods 4, buffer grooves 6 (the limit balls 8 slide in the inner sides, the inner diameters of the opening ends are smaller than the diameter of the limit balls 8 and the limit balls 8 are prevented from falling off) which are convenient for the limit balls 8 to slide are formed in the side walls of the pair of section steel 1, and gaskets 7 (the material of which can be rubber) are adhered inside the buffer grooves 6 for buffering, so that the buffer grooves are in contact with the limit balls 8 for buffering energy dissipation during displacement of the expansion joints.
When the expansion joint stretches out, can drive bottom steel sheet 9 and upwards remove, rubber adhesive tape 2 is slightly higher than the road surface this moment, and rubbish is difficult to drop on the adhesive tape, even rubbish drops on the adhesive tape simultaneously, also is convenient for clean, and the accessible is glued or integrative vulcanized mode is fixed between rubber adhesive tape 2 and the steel sheet 9.
When the expansion joint is displaced, the limiting balls 8 at the two ends of the limiting rod 4 slide in the buffer groove 6 at the moment, and are matched with the gasket 7 to buffer and dissipate energy, so that the expansion joint can be limited, the displacement is avoided, and the displacement level is ensured.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.
Claims (8)
1. The utility model provides a novel expansion joint structure, includes a pair of shaped steel, its characterized in that: a rubber strip is arranged between the pair of profile steels, and is of a bilateral symmetry structure and is divided into a dustproof part, a protruding part and a deformation part, and a through hole is formed; the dustproof part is positioned at the upper part of the rubber strip, and the surface is flat; the protruding part is positioned at the edge of the rubber strip, the shape of the protruding part is matched with the shape of the pair of profile steel mounting grooves, and the deformation part is positioned in the middle of the rubber strip; the through hole is arranged in the middle of the deformation part.
2. The novel expansion joint structure according to claim 1, wherein: the height of the dustproof part is 0.25-0.35 times of the height of the rubber strip, the width of the dustproof part is 0.55-0.65 times of the width of the rubber strip, the through hole is elliptical, the major axis of the ellipse is 0.6-0.7 times of the height of the rubber strip, and the minor axis of the ellipse is 0.3-0.4 times of the width of the rubber strip.
3. The novel expansion joint structure according to claim 1, wherein: the bottom of the deformation part is provided with a steel plate with the same outline as the deformation part, and the thickness of the steel plate is 0.2-0.8mm.
4. The novel expansion joint structure according to claim 1, wherein: the pair of section steel is F-shaped steel, C-shaped steel or E-shaped steel.
5. The novel expansion joint structure according to claim 1, wherein: the bottoms of the pair of the section steels are connected through an auxiliary buffer mechanism.
6. The novel expansion joint structure according to claim 5, wherein: the auxiliary buffer mechanism comprises limit rods which are equidistantly arranged between the pair of profile steels, limit balls are symmetrically arranged at two ends of the limit rods, and buffer grooves matched with the limit balls are formed in the pair of profile steels.
7. The novel expansion joint structure according to claim 6, wherein: the buffer tank is internally and fixedly provided with a gasket, and the gasket is matched with the limiting ball.
8. The novel expansion joint structure according to claim 1, wherein: and anchor bars are arranged at the equidistant ends of the pair of the section steels, which are far away from each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322821228.4U CN220927504U (en) | 2023-10-20 | 2023-10-20 | Novel expansion joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322821228.4U CN220927504U (en) | 2023-10-20 | 2023-10-20 | Novel expansion joint structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220927504U true CN220927504U (en) | 2024-05-10 |
Family
ID=90938658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322821228.4U Active CN220927504U (en) | 2023-10-20 | 2023-10-20 | Novel expansion joint structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220927504U (en) |
-
2023
- 2023-10-20 CN CN202322821228.4U patent/CN220927504U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |