CN218951949U - Hidden expansion joint structure - Google Patents
Hidden expansion joint structure Download PDFInfo
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- CN218951949U CN218951949U CN202221876131.2U CN202221876131U CN218951949U CN 218951949 U CN218951949 U CN 218951949U CN 202221876131 U CN202221876131 U CN 202221876131U CN 218951949 U CN218951949 U CN 218951949U
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- 238000010276 construction Methods 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 239000010959 steel Substances 0.000 claims description 30
- 239000010426 asphalt Substances 0.000 claims description 24
- 229910003460 diamond Inorganic materials 0.000 claims description 5
- 239000010432 diamond Substances 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 4
- 239000010410 layer Substances 0.000 abstract 7
- 239000002344 surface layer Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Bridges Or Land Bridges (AREA)
- Road Paving Structures (AREA)
Abstract
The utility model discloses a hidden expansion joint structure, which comprises a left bridge body, a right bridge body, a structural joint reserved between the left bridge body and the right bridge body, a rigid expansion connecting device and a rubber layer arranged above the rigid expansion connecting device; the rigid telescopic connecting device is arranged above the construction joint and is connected with the left bridge body and the right bridge body; the rubber layer comprises a movable area in the middle and fixed areas on two sides, a plurality of through holes are vertically formed in the movable area, and the rubber layer is fixedly connected with the rigid telescopic connecting device in the fixed areas. According to the utility model, the rubber layer is arranged above the rigid telescopic connecting device, so that the rigid telescopic connecting device is hidden on a bridge deck pavement, meanwhile, the rubber layer is used as a surface layer to be in contact with the external environment, the rebound resilience performance and the anti-slip performance of the rubber layer are utilized to improve the travelling comfort of the expansion joint and reduce travelling noise, and the requirements of drainage and retraction of the expansion joint are met through the through holes formed in the movable area of the rubber layer.
Description
Technical Field
The utility model relates to the technical field of bridge expansion joints, in particular to a hidden expansion joint structure.
Background
The bridge expansion joint is a telescopic structure arranged between two beam ends, between a beam end and a bridge abutment or at the hinge position of a bridge, can freely stretch and retract in two directions parallel to and perpendicular to the axis of the bridge, has stable, firm and reliable bearing, and can ensure that a vehicle runs smoothly without sudden jump or noise when passing through the expansion joint.
The bridge expansion joint in the prior art is completely exposed on the natural surface, so that the bridge expansion joint is not only influenced by various natural factors such as wind, sun, rain and the like, but also directly bears the repeated load action of a vehicle, and is extremely easy to damage and difficult to repair. Particularly, the span of the large bridge is large, the deformation requirement can be met only by adopting rigid expansion devices with high expansion degree, such as comb plate expansion joints, and the rigid expansion devices such as the comb plate expansion joints and the pavement of the beam ends at two sides have hardness difference and need to be in transitional connection, so that noise is easy to generate when travelling crane passes; after the device is used for a period of time, the asphalt layer on the road surface at the beam end is pressed down by the repeated load of the vehicle to have larger deformation degree, the deformation degree of the rigid telescopic device is smaller, and the phenomenon of vehicle jump can occur when the vehicle passes, so that the comfort and safety of the vehicle are affected.
Disclosure of Invention
Based on this, it is necessary to provide a hidden expansion joint structure with simple structure and convenient construction to solve the above problems, and the expansion joint can be well connected with the beam ends at two ends, so as to reduce driving noise and improve driving comfort and safety.
The utility model is realized by the following technical scheme:
the hidden expansion joint structure comprises a left bridge body, a right bridge body, a construction joint reserved between the left bridge body and the right bridge body, a rigid expansion connecting device and a rubber layer arranged above the rigid expansion connecting device; the rigid telescopic connecting device is arranged above the construction joint and is connected with the left bridge body and the right bridge body; the rubber layer comprises a movable area in the middle and fixed areas on two sides, a plurality of through holes are vertically formed in the movable area, and the rubber layer is fixedly connected with the rigid telescopic connecting device in the fixed areas.
In one embodiment, the top surface of the left bridge body and the top surface of the right bridge body are respectively provided with the same paving system, and the paving system comprises a paving layer and an asphalt layer paved above the paving layer; the upper surface of the rigid telescopic connecting device is flush with the upper surface of the paving layer, and the upper surface of the rubber layer is flush with the upper surface of the asphalt layer.
In one embodiment, first L-shaped steel plates are respectively arranged on two sides of the rigid telescopic connecting device in the width direction, each first L-shaped steel plate comprises a first vertical plate and a first transverse plate which are mutually perpendicular, and each first transverse plate is connected to the bottom of the rigid telescopic connecting device; the first riser is connected in the relative outside of rigidity telescopic connection device, and the upper surface height of first riser flushes with the upper surface of layer of mating formation.
In one embodiment, the rigid telescopic connection device and the first transverse plate are connected with the left bridge body or the right bridge body through adjusting bolts, so that the rigid telescopic connection device and/or the first transverse plate can be adjusted in height through the adjusting bolts.
In one embodiment, second L-shaped steel plates are respectively arranged on two sides of the rubber layer in the width direction, and each second L-shaped steel plate comprises a second vertical plate and a second transverse plate which are mutually perpendicular, and the second transverse plates are connected to the bottom of the fixed area of the rubber layer; the second riser is connected to the opposite outer side of the rubber layer and abuts against the asphalt layer.
In one embodiment, the upper surface of the second riser is slightly lower in height than the upper surface of the asphalt layer, and the rubber layer and asphalt layer are bonded to each other above the upper surface of the second riser.
In one embodiment, a plurality of sliding blocks are arranged on the lower surface of the rubber layer in the movable area, a plurality of embedded sliding grooves are arranged on the upper surface of the rigid telescopic connecting device corresponding to the sliding blocks along the length direction of the bridge, and the sliding blocks are in sliding connection with the embedded sliding grooves.
In one embodiment, the rubber layer is coated with steel fibers.
In one embodiment, the rigid telescopic connection is a comb plate bridge telescopic.
In one embodiment, the horizontal cross-sectional shape of the through-hole is diamond, circular, oval, or oblong.
Compared with the prior art, the technical scheme of the utility model has at least the following advantages and beneficial effects:
according to the utility model, the rubber layer is arranged above the rigid telescopic connecting device, so that the rigid telescopic connecting device is hidden under bridge deck pavement, the direct contact between the rigid telescopic connecting device and the outside is reduced, and the durability of the rigid telescopic connecting device is improved; meanwhile, the bridge deck of the bridge bodies at the two ends is connected through the rubber layer, so that the hardness difference between the expansion joint and the pavement of the bridge ends at the two sides is reduced, the pavement evenness is improved, the driving noise is reduced, and the anti-skid performance at the expansion joint is improved; in addition, through vertically seting up a plurality of through-holes at the movable region at rubber layer middle part, satisfy the drainage nature of expansion joint department to make the rubber layer have sufficient space of retracting when compressing and retracting, avoid the rubber layer to compress too big and produce the phenomenon that the middle part upwarps.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a rubber layer according to an embodiment of the present utility model;
FIG. 2 is a cross-sectional view at A-A in FIG. 1;
FIG. 3 is a cross-sectional view at B-B in FIG. 1;
fig. 4 is a schematic connection diagram of a slider and an embedded chute according to an embodiment of the present utility model;
fig. 5 is a schematic structural diagram of a rigid telescopic connection device according to an embodiment of the present utility model;
fig. 6 is an overall schematic diagram of a hidden expansion joint structure according to an embodiment of the present utility model.
Icon: 1-left bridge body, 2-right bridge body, 3-construction joint, 4-rigid telescopic connecting device, 41-embedded chute, 5-rubber layer, 51-fixed area, 511-connecting bolt, 52-movable area, 521-through hole, 522-stud, 523-first nut, 524-second nut, 53-slider, 6-pavement layer, 7-asphalt layer, 8-first L-shaped steel plate, 81-first transverse plate, 82-first vertical plate, 83-adjusting bolt, 9-second L-shaped steel plate, 91-second transverse plate, 92-second vertical plate, 100-expansion joint block.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more clear, a hidden expansion joint structure will be more clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The drawings illustrate preferred embodiments of the hidden expansion joint structure, but the hidden expansion joint structure may be implemented in many different forms and is not limited to the embodiments described herein. Rather, the purpose of these embodiments is to provide a more thorough and complete disclosure of the hidden expansion joint structure.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it is to be understood that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs unless explicitly defined and defined otherwise. Where the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the same sense as the figures or are conventional in the practice of the utility model, they are merely used in describing the utility model and to simplify the description, rather than to indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.
In the description of the present utility model, it should also be noted that the terms "disposed," "mounted," "connected," and "connected" as used herein are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 5, the embodiment of the present utility model provides a hidden expansion joint structure, which includes a left bridge body 1, a right bridge body 2, a construction joint 3 left between the left bridge body 1 and the right bridge body 2, a rigid expansion joint device 4, and a rubber layer 5 arranged above the rigid expansion joint device 4; the rigid telescopic connecting device 4 is arranged above the construction joint 3 and is connected with the left bridge body 1 and the right bridge body 2; the rubber layer 5 can be a rubber plate structure made of solid materials and comprises a movable area 52 in the middle and fixed areas 51 at two sides, namely, the rubber layer 5 is divided into the fixed areas 51-the movable areas 52-the fixed areas 51 along the length direction of the bridge, a plurality of through holes 521 are vertically formed in the movable areas 52 in the middle, the rubber layer 5 and the rigid telescopic connecting device 4 are fixedly connected in the fixed areas 51, the connecting mode comprises but not limited to bolting, so that the rubber layer 5 and the rigid telescopic connecting device 4 are firmly connected and can stretch and retract along with the stretching of the rigid telescopic connecting device 4, and the effective connection of the bridge bodies at two sides is realized. Through setting up rubber layer 5 in the top of rigidity flexible connecting device 4, realize the hiding of rigidity flexible connecting device 4 at bridge deck pavement, simultaneously, regard rubber layer 5 as surface course and external environment contact, utilize resilience performance and the antiskid performance of rubber layer 5 to improve the driving comfort level of expansion joint department and reduce driving noise, the through-hole 521 that utilizes movable region 52 to set up satisfies the drainage nature of expansion joint department to have sufficient space of retracting when making rubber layer 5 pressurized retract, avoid rubber layer 5 pressurized too big to produce the phenomenon that the middle part upwarp.
Specifically, the left bridge body 1 and the right bridge body 2 refer to bridge body parts on two sides of an expansion joint distributed along the length direction of a bridge, and include two adjacent beam ends or adjacent beam ends, bridge platforms and other places where the expansion joint of the bridge needs to be arranged. The rigid telescopic connection device 4 includes a butt-joint type expansion joint device, a steel plate type expansion joint device, a module supporting type expansion joint device, etc., which are widely used in the prior art, and the structure thereof will not be described here, so it can be understood that the rigid telescopic connection device 4 has a portion fixedly connected to the two side bridges and moving and deforming with the two side bridges, and the fixing area 51 of the rubber layer 5 is fixedly connected to the portion (i.e. the portion fixedly connected to the two side bridges and moving and deforming with the two side bridges of the rigid telescopic connection device 4) so as to extend and retract with the rigid telescopic connection device 4. Further, the horizontal cross section of the through hole 521 is diamond, circular, oval or oval, preferably diamond or circular, and the diamond or circular through hole 521 has the same expansion radius, and can be uniformly stressed under the condition that the stretching amplitude or the compression amplitude of the rubber layer 5 is regular, so as to slow down the aging speed.
Further, since the rubber layer 5 itself is inferior in support property, the rubber layer 5 can be filled with steel fibers or the rubber layer 5 is coated with steel fibers, and the load-bearing capacity of the rubber layer 5 can be improved while the rebound resilience of the rubber layer 5 is maintained. Meanwhile, preferably, the comb plate type bridge expansion device in the steel plate type expansion joint device is used as the rigid expansion connecting device 4, the steel plate type structure of the comb plate can directly bear the wheel load, and the fixing requirement and the bearing requirement of the rubber layer 5 can be well met.
Further, as shown in fig. 1 to 3, in general, the top surface of the left bridge body 1 and the top surface of the right bridge body 2 are respectively provided with the same paving system, including a paving layer 6 and an asphalt layer 7 paved above the paving layer 6; in order to ensure the flatness of bridge pavement, driving noise is effectively reduced, the upper surface of the rigid telescopic connecting device 4 is required to be kept flush with the upper surface of the paving layer 6 when the rigid telescopic connecting device 4 and the rubber layer 5 are arranged, and the upper surface of the rubber layer 5 is required to be kept flush with the upper surface of the asphalt layer 7.
Therefore, as shown in fig. 2 and 3, the two sides of the rigid telescopic connection device 4 in the width direction are respectively provided with the first L-shaped steel plates 8, the structure of the first L-shaped steel plates 8 can refer to an angle steel structure, the angle steel structure comprises a first vertical plate 82 and a first horizontal plate 81 which are mutually perpendicular, wherein the first horizontal plate 81 is connected to the bottom of the rigid telescopic connection device 4, the first vertical plate 82 is connected to the opposite outer side of the rigid telescopic connection device 4, the upper surface of the first vertical plate 82 is level with the upper surface of the paving layer 6, the first L-shaped steel plates 8 penetrate through the rigid telescopic connection device 4 and the first horizontal plate 81 through bolts and are fixedly connected with a bridge body, the first L-shaped steel plates 8 are used as reserved supports of the paving layer 6, the concrete is blocked during the concrete construction of the paving layer 6, and the height adjustment of the rigid telescopic connection device 4 and the paving layer 6 is conveniently realized.
Because the real environment is complicated, the high demand to bridge system of mating formation is different in the actual engineering, in order to improve hidden expansion joint structure's suitability, further, as shown in fig. 2 and 3, still can realize through adjusting bolt 83 that rigidity telescopic connection device 4 and first diaphragm 81 are connected with left bridge body 1 or right bridge body 2, make rigidity telescopic connection device 4 can carry out the altitude mixture control through adjusting bolt 83, realize that rigidity telescopic connection device 4 and the upper surface height of layer 6 of mating formation flush. It will be appreciated that the bolt structure for mounting and leveling the adjusting bolt 83 as a support for the flat plate platform is widely used in the prior art, and the structure thereof will not be described here. It will be further appreciated that the adjusting bolt 83 may be disposed between the rigid telescopic connection device 4 and the first transverse plate 81, to fixedly connect the first transverse plate 81 with the bridge body, and then adjust the distance between the rigid telescopic connection device 4 and the first transverse plate 81 by the adjusting bolt 83 to realize the height adjustment of the rigid telescopic connection device 4; the adjusting bolt 83 can also be arranged between the first transverse plate 81 and the bridge body, the rigid telescopic connecting device 4 and the first transverse plate 81 are fixedly connected, and then the distance between the first transverse plate 81 and the bridge body is adjusted through the adjusting bolt 83, so that the height of the rigid telescopic connecting device 4 is adjusted.
Further, as shown in fig. 2 and 3, second L-shaped steel plates 9 are respectively disposed at two sides of the rubber layer 5 in the width direction, the structure of the second L-shaped steel plates 9 can refer to an angle steel structure, and the angle steel structure comprises a second vertical plate 92 and a second horizontal plate 91 which are mutually perpendicular, the second horizontal plate 91 is connected to the bottom of a fixing area 51 of the rubber layer 5, the second vertical plate 92 is connected to the opposite outer side of the rubber layer 5 and is abutted against the asphalt layer 7, and penetrates through the rubber layer 5 and the second horizontal plate 91 through a connecting bolt 511 and is fixedly connected with the rigid telescopic connecting device 4, and the second L-shaped steel plates 9 are used as reserved supports of the asphalt layer 7, so that asphalt is blocked during construction of the asphalt layer 7, and height adjustment of the rubber layer 5 and the asphalt layer 7 is conveniently realized; meanwhile, the second L-shaped steel plate 9 can also serve as a rigid support between the rubber layer 5 and the asphalt layer 7, and the phenomenon that the rebound of the rubber layer 5 is affected due to excessive compression deformation of the asphalt layer 7 in daily use is avoided.
Further, as shown in fig. 2 and 3, the height of the upper surface of the second riser 92 is slightly lower than that of the asphalt layer 7, and the rubber layer 5 and the asphalt layer 7 are adhered to each other above the upper surface of the second riser 92, so that the upper end of the second riser 92 is covered by the rubber layer 5 or the asphalt layer 7, and the influence of the extension of the upper end of the second riser 92 from the road surface on the driving comfort is avoided.
As shown in fig. 2 to 4, in order to ensure the stability of the bridge in the large-span bridge engineering, enough margin is required to be reserved between the bridge bodies to adapt to the deformation of the bridge, at this time, the width of the construction joint 3 between the bridge bodies is larger, the setting width of the opposite expansion joint is wider than the usual design width, and the laying width of the rubber layer 5 is also widened. In order to improve the connection stability between the large-span rubber layer 5 and the rigid telescopic connecting device 4, the movable area 52 of the rubber layer 5 needs to be limited in the vertical direction, therefore, further, a plurality of sliding blocks 53 are further arranged on the lower surface of the rubber layer 5 in the movable area 52, a plurality of embedded sliding grooves 41 formed along the bridge length direction are formed in the upper surface of the rigid telescopic connecting device 4 corresponding to the sliding blocks 53, the sliding blocks 53 are in sliding connection with the embedded sliding grooves 41 so as to realize the sliding connection between the movable area 52 of the rubber layer 5 and the rigid telescopic connecting device 4, and the movable area 52 of the rubber layer 5 is tightly attached to the rigid telescopic connecting device 4 in the vertical direction through the arrangement of the sliding blocks 53 and the embedded sliding grooves 41 and can move in a certain range in the horizontal direction, so that the expansion and the contraction of the rubber layer 5 are not influenced. It can be understood that in the present embodiment, as shown in fig. 4, the slider 53 is disposed on the lower surface of the rubber layer 5, and a stud 522 is inserted from the upper surface of the rubber layer 5, the upper head of the stud 522 is limited on the upper surface of the rubber layer 5 by a first nut 523, the lower head of the stud 522 extends into the embedded chute 41 and is limited on the lower surface of the embedded chute 41 by a second nut 524, and the slider 53 is slidably connected with the embedded chute 41 by using the second nut 524 as the slider 53; in other embodiments, the slider 53 may be a fixed block that is embedded and fixed on the lower surface of the rubber layer 5, and the movable area 52 of the rubber layer 5 may be slidably connected to the rigid telescopic connection device 4 by slidably connecting with the embedded chute 41. It will also be appreciated that the rigid telescopic connection device 4 provided with the embedded runner 41 is preferably a comb plate type bridge telescopic device, and the steel plate type comb plate structure provided with the rigid telescopic connection device can reasonably perform runner opening and rubber layer 5 receiving, and can be well applied to large-span bridge engineering.
It can be appreciated that, as shown in fig. 5, the hidden expansion joint structure can be divided into a plurality of expansion joint blocks 100 according to the width direction of the bridge, each expansion joint block 100 can independently play a role in expansion, and the expansion joint blocks 100 are connected and run through and form an integral expansion joint along the width direction of the bridge. When a defect occurs in a certain expansion joint block 100, the expansion joint block 100 can be conveniently removed for maintenance, repair or replacement, so that the maintenance convenience is improved, and the obstruction of traffic smoothness due to the maintenance of an expansion joint structure is avoided.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The hidden expansion joint structure is characterized by comprising a left bridge body, a right bridge body, a structural joint reserved between the left bridge body and the right bridge body, a rigid telescopic connecting device and a rubber layer arranged above the rigid telescopic connecting device; the rigid telescopic connecting device is arranged above the construction joint and is connected with the left bridge body and the right bridge body; the rubber layer comprises a movable area in the middle and fixed areas on two sides, a plurality of through holes are vertically formed in the movable area, and the rubber layer is fixedly connected with the rigid telescopic connection device in the fixed areas.
2. The hidden expansion joint structure according to claim 1, wherein the top surface of the left bridge body and the top surface of the right bridge body are respectively provided with the same paving system, and the hidden expansion joint structure comprises a paving layer and an asphalt layer paved above the paving layer; the height of the upper surface of the rigid telescopic connecting device is flush with the upper surface of the paving layer, and the height of the upper surface of the rubber layer is flush with the upper surface of the asphalt layer.
3. The hidden expansion joint structure according to claim 2, wherein first L-shaped steel plates are respectively arranged at two sides of the rigid expansion joint device in the width direction, the first L-shaped steel plates comprise a first vertical plate and a first transverse plate which are mutually perpendicular, and the first transverse plate is connected to the bottom of the rigid expansion joint device; the first vertical plate is connected to the opposite outer sides of the rigid telescopic connecting device, and the height of the upper surface of the first vertical plate is flush with the upper surface of the paving layer.
4. A hidden expansion joint structure according to claim 3, wherein the rigid telescopic connection device and the first cross plate are connected with the left bridge body or the right bridge body through adjusting bolts, so that the height of the rigid telescopic connection device and/or the first cross plate can be adjusted through the adjusting bolts.
5. The hidden expansion joint structure according to any one of claims 2 to 4, wherein second L-shaped steel plates are respectively provided at both sides of the rubber layer in the width direction, the second L-shaped steel plates include a second vertical plate and a second horizontal plate which are perpendicular to each other, and the second horizontal plate is connected to the bottom of the fixing area of the rubber layer; the second vertical plate is connected to the opposite outer side of the rubber layer and is abutted against the asphalt layer.
6. The hidden expansion joint structure according to claim 5, wherein the upper surface of said second riser is slightly lower than the upper surface of said asphalt layer, and said rubber layer and said asphalt layer are bonded to each other above the upper surface of said second riser.
7. The hidden expansion joint structure according to claim 1, wherein a plurality of sliding blocks are arranged on the lower surface of the rubber layer in the movable area, a plurality of embedded sliding grooves formed in the upper surface of the rigid expansion joint device along the length direction of the bridge are arranged corresponding to the sliding blocks, and the sliding blocks are in sliding connection with the embedded sliding grooves.
8. The hidden expansion joint structure according to claim 1, wherein the rubber layer is coated with steel fibers.
9. The hidden expansion joint structure according to claim 1, wherein the rigid expansion joint is a comb plate type bridge expansion joint.
10. The hidden expansion joint structure according to claim 1, wherein the horizontal cross-sectional shape of the through hole is diamond, circular, oval or lumbar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221876131.2U CN218951949U (en) | 2022-07-08 | 2022-07-08 | Hidden expansion joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221876131.2U CN218951949U (en) | 2022-07-08 | 2022-07-08 | Hidden expansion joint structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218951949U true CN218951949U (en) | 2023-05-02 |
Family
ID=86111859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221876131.2U Active CN218951949U (en) | 2022-07-08 | 2022-07-08 | Hidden expansion joint structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218951949U (en) |
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2022
- 2022-07-08 CN CN202221876131.2U patent/CN218951949U/en active Active
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Effective date of registration: 20230801 Address after: Floor 9, No. 41, Middle Tuqiao Street, Wuhou District, Chengdu, Sichuan 610041 Patentee after: Sichuan Jiaojian Urban Investment Construction Co.,Ltd. Patentee after: Sichuan Communications Construction Group Co.,Ltd. Patentee after: Sichuan Hualinsheng Construction Engineering Co.,Ltd. Address before: Floor 9, No. 41, Middle Tuqiao Street, Wuhou District, Chengdu, Sichuan 610041 Patentee before: Sichuan Jiaojian Urban Investment Construction Co.,Ltd. Patentee before: Sichuan Communications Construction Group Co.,Ltd. |
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Address after: Floor 9, No. 41, Middle Tuqiao Street, Wuhou District, Chengdu, Sichuan 610041 Patentee after: Sichuan Jiaojian Urban Investment Construction Co.,Ltd. Country or region after: China Patentee after: Sichuan Communications Construction Group Co.,Ltd. Patentee after: Sichuan Jiaojian Urban Construction and Development Co.,Ltd. Address before: Floor 9, No. 41, Middle Tuqiao Street, Wuhou District, Chengdu, Sichuan 610041 Patentee before: Sichuan Jiaojian Urban Investment Construction Co.,Ltd. Country or region before: China Patentee before: Sichuan Communications Construction Group Co.,Ltd. Patentee before: Sichuan Hualinsheng Construction Engineering Co.,Ltd. |
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