CN115262373A - Hidden expansion joint structure - Google Patents
Hidden expansion joint structure Download PDFInfo
- Publication number
- CN115262373A CN115262373A CN202210815456.8A CN202210815456A CN115262373A CN 115262373 A CN115262373 A CN 115262373A CN 202210815456 A CN202210815456 A CN 202210815456A CN 115262373 A CN115262373 A CN 115262373A
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- rubber layer
- expansion joint
- bridge body
- rigid telescopic
- layer
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- 238000010276 construction Methods 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 28
- 239000010959 steel Substances 0.000 claims description 28
- 239000010426 asphalt Substances 0.000 claims description 21
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 230000013011 mating Effects 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 4
- 229910003460 diamond Inorganic materials 0.000 claims description 2
- 239000010432 diamond Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 abstract 7
- 239000002344 surface layer Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
- E01D19/065—Joints having sliding plates
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Road Paving Structures (AREA)
Abstract
The invention 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 telescopic connecting device and a rubber layer arranged above the rigid telescopic connecting device, wherein the left bridge body is provided with a left bridge body and a right bridge body; the rigid telescopic connecting device is arranged above the construction seam and is connected with the left bridge body and the right bridge body; the rubber layer comprises a moving area at the middle part and fixed areas at two sides, a plurality of through holes are vertically formed in the moving area, and the rubber layer is fixedly connected with the rigid telescopic connecting device in the fixed areas. 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 driving comfort level at the expansion joint is improved and the driving noise is reduced by utilizing the resilience performance and the anti-sliding performance of the rubber layer, and the drainage performance and retraction requirements of the expansion joint are met through the through hole formed in the movable area of the rubber layer.
Description
Technical Field
The invention 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 the beam ends and an abutment or on the hinged position of the bridge for meeting the requirement of bridge deformation, can freely expand and contract in two directions parallel to and perpendicular to the axis of the bridge, is stable, firm and reliable in bearing, and can ensure that a vehicle runs through the expansion joint smoothly without leap or noise.
The bridge expansion joint in the prior art is completely exposed on the natural surface, is not only influenced by various natural factors such as wind, sunshine, rain and the like, but also directly bears the repeated load of a vehicle, is very easy to damage and is difficult to repair. Especially, large bridges have large span, and rigid expansion devices such as comb plate expansion joints and the like with high expansion degree are required to meet the deformation requirement, and the rigid expansion devices such as the comb plate expansion joints and the like have hardness difference with pavement of beam ends at two sides and need to be in transitional connection, so that noise is easily generated when a vehicle passes through; and after using a period, the pitch layer on beam-ends road surface is pushed down the deformation degree by the vehicle load repeatedly great, and rigidity telescoping device deformation degree is less, and the phenomenon of jumping still probably appears when the driving process, influences driving comfort level and security.
Disclosure of Invention
Based on this, it is necessary to provide a hidden expansion joint structure simple structure, convenient construction to the above-mentioned problem, can link up expansion joint and both ends beam ends better, reduce driving noise, improve driving comfort and security.
The invention is realized by the following technical scheme:
a hidden expansion joint structure comprises a left bridge body, a right bridge body, a structural joint left 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 seam 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 same paving system comprises a paving layer and an asphalt layer paved above the paving layer; the upper surface height of the rigid telescopic connecting device is flush with the upper surface of the pavement layer, and the upper surface height of the rubber layer is flush with the upper surface of the asphalt layer.
In one embodiment, two sides of the rigid telescopic connecting device in the width direction are respectively provided with a first L-shaped steel plate, the first L-shaped steel plates comprise a first vertical plate and a first transverse plate which are perpendicular to each other, and the first transverse plate is connected to the bottom of the rigid telescopic connecting device; the first vertical plate is connected to the opposite outer side 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 pavement layer.
In one embodiment, the rigid telescopic connection 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 and/or the first transverse plate can be adjusted in height through the adjusting bolts.
In one embodiment, two sides of the rubber layer in the width direction are respectively provided with a second L-shaped steel plate, each second L-shaped steel plate comprises a second vertical plate and a second transverse plate which are perpendicular to each other, and the second transverse plates are connected to the bottom of the fixing area of the rubber layer; the second riser is connected in the relative outside of rubber layer to with pitch layer butt.
In one embodiment, the height of the upper surface of the second riser is slightly lower than that of the upper surface of the asphalt layer, and the rubber layer and the asphalt layer are adhered 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 formed in 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 connected with the embedded sliding grooves in a sliding mode.
In one embodiment, the rubber layer is wrapped with steel fibers.
In one embodiment, the rigid telescoping connection is a combplate bridge telescoping arrangement.
In one embodiment, the horizontal cross-sectional shape of the through-hole is a diamond shape, a circular shape, an oval shape, or a waist circular shape.
Compared with the prior art, the technical scheme of the invention at least has the following advantages and beneficial effects:
according to the invention, the rubber layer is arranged above the rigid telescopic connecting device, so that the rigid telescopic connecting device is hidden under the 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 decks of the bridge bodies at the two ends are connected through the rubber layer, so that the hardness difference between the expansion joint and the pavement of the beam ends at the two sides is reduced, the pavement evenness can be improved, the driving noise is reduced, and the anti-skidding performance at the expansion joint is improved; in addition, through a plurality of through-holes are vertically seted up to the active area at rubber layer middle part, satisfy the drainage of expansion joint department to make the rubber layer pressurized have the sufficient space of contracting when contracting, avoid the too big phenomenon that produces the middle part upwarp of rubber layer pressurized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a rubber layer provided in an embodiment of the present invention;
FIG. 2 isbase:Sub>A cross-sectional view taken at A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken at B-B of FIG. 1;
fig. 4 is a schematic connection diagram of a sliding block and an embedded sliding groove according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a rigid telescopic link according to an embodiment of the present invention;
fig. 6 is an overall schematic view of the concealed expansion joint structure according to the embodiment of the present invention.
Icon: 1-left bridge body, 2-right bridge body, 3-structural joint, 4-rigid telescopic connecting device, 41-embedded sliding groove, 5-rubber layer, 51-fixed area, 511-connecting bolt, 52-movable area, 521-through hole, 522-stud bolt, 523-first nut, 524-second nut, 53-sliding block, 6-paving 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 and 100-expansion joint block.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, a hidden type expansion joint structure will be described more clearly and completely in the following with reference to the accompanying drawings in the embodiments of the present invention. The drawings show preferred embodiments of the concealed expansion joint structure, however, the concealed expansion joint structure can be realized in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified and defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like, when used in reference to an orientation or positional relationship indicated in the drawings, or as otherwise customary for use in the practice of the invention, are used merely for convenience in describing and simplifying the invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.
In the description of the present invention, it should be further noted that the terms "disposed," "mounted," "connected," and "connected" used herein should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 5, an embodiment of the present invention provides a hidden expansion joint structure, which includes a left bridge body 1, a right bridge body 2, a structural joint 3 left between the left bridge body 1 and the right bridge body 2, a rigid telescopic connection device 4, and a rubber layer 5 disposed above the rigid telescopic connection 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 on two sides, namely the rubber layer 5 is divided into the fixed area 51-the movable area 52-the fixed area 51 along the length direction of the bridge, a plurality of through holes 521 are vertically formed in the movable area 52 in the middle, the rubber layer 5 and the rigid telescopic connecting device 4 are fixedly connected in the fixed area 51, the connecting mode includes but is not limited to bolt connection, the rubber layer 5 and the rigid telescopic connecting device 4 are stably connected, the rubber layer can stretch along with the stretching of the rigid telescopic connecting device 4, and the effective connection of bridges on two sides is realized. Through setting up rubber layer 5 in the top at rigid telescopic connection device 4, realize that rigid telescopic connection device 4 is hidden at bridge deck pavement, and simultaneously, contact rubber layer 5 as surface course and external environment, the resilience performance and the skid resistance performance that utilize rubber layer 5 improve the driving comfort level and reduce the driving noise of expansion joint department, the through-hole 521 that utilizes the active area 52 to set up satisfies the drainage of expansion joint department, and make rubber layer 5 pressurized return to have the sufficient space of returning when returning, avoid the too big phenomenon that produces the middle part upwarp of rubber layer 5 pressurized.
Specifically, the left bridge body 1 and the right bridge body 2 refer to bridge body parts on two sides of the expansion joint distributed along the length direction of the bridge, and include two adjacent beam ends or two adjacent beam ends and a bridge abutment and other places where the bridge expansion joint 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, and a modulus support type expansion joint device, which are widely used in the prior art, and the structure thereof is not described herein in detail, therefore, it can be understood that the rigid telescopic connection device 4 has a portion fixedly connected with the bridge bodies at both sides and deformed along with the movement of the bridge bodies at both sides, and the fixing region 51 of the rubber layer 5 is fixedly connected with the portion (i.e., "the portion fixedly connected with the bridge bodies at both sides and deformed along with the movement of the bridge bodies at both sides" of the rigid telescopic connection device 4) so as to extend and retract along with the rigid telescopic connection device 4. Furthermore, the horizontal cross-sectional shape of the through hole 521 is a rhombus, a circle, an ellipse or a waist circle, preferably a rhombus or a circle, and the rhombus or the circle of the through hole 521 has the same expansion radius, so that the rubber layer 5 can be stressed uniformly under the condition of regular stretching amplitude or compression amplitude, and the aging speed is reduced.
Furthermore, because the rubber layer 5 has poor self-supporting performance, the rubber layer 5 can be filled with steel fibers or the rubber layer 5 is coated with the steel fibers, so that the bearing capacity of the rubber layer 5 is improved while the resilience performance of the rubber layer 5 is maintained. Simultaneously, preferably, regard as rigid telescopic connection 4 with the fishback formula bridge telescoping device among the flexible seam device of steel sheet formula, can directly bear the wheel load through the steel sheet formula structure of fishback to can satisfy the fixed demand and the bearing demand of rubber layer 5 better.
Further, as shown in fig. 1 to 3, generally, 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, which includes a paving layer 6 and an asphalt layer 7 laid above the paving layer 6; for guaranteeing the roughness on bridge road surface, effectively reduce the driving noise, need keep rigid flexible connecting device 4's upper surface height and the upper surface of layer 6 of mating formation flush when setting up rigid flexible connecting device 4 and rubber layer 5 to and the upper surface height of rubber layer 5 flushes with the upper surface of pitch layer 7, through the mode of the synchronous construction of system and expansion joint structure of mating formation, can conveniently carry out the adjustment of each part height and realize highly flushing.
Therefore, as shown in fig. 2 and fig. 3, the first L-shaped steel plates 8 are respectively disposed on two sides of the rigid telescopic connection device 4 in the width direction, the first L-shaped steel plates 8 can refer to an angle steel structure, and include a first vertical plate 82 and a first horizontal plate 81 that are perpendicular to each other, 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, and the height of the upper surface of the first vertical plate 82 is flush with the upper surface of the pavement layer 6, the first L-shaped steel plates 8 are used as reserved supports of the pavement layer 6, the concrete is blocked during the concrete construction of the pavement layer 6, and the height adjustment of the rigid telescopic connection device 4 and the pavement layer 6 is facilitated.
Because the realistic environment is complicated, highly the demand to the bridge system of mating formation differs in the actual engineering, for the suitability that improves hidden expansion joint structure, it is further, as shown in fig. 2 and fig. 3, can also realize through adjusting bolt 83 that rigid telescopic connection device 4 and first diaphragm 81 are connected with left pontic 1 or right pontic 2, make rigid telescopic connection device 4 can carry out height control through adjusting bolt 83, realize that rigid telescopic connection device 4 flushes with the upper surface height of layer 6 of mating formation. It is understood that the bolt structure for supporting, mounting and leveling the adjusting bolt 83 on the flat platform is widely used in the prior art, and the detailed description thereof is omitted here. It can also be understood that the adjusting bolt 83 may be disposed between the rigid telescopic connecting device 4 and the first horizontal plate 81, the first horizontal plate 81 is fixedly connected with the bridge body, and then the adjusting bolt 83 adjusts the distance between the rigid telescopic connecting device 4 and the first horizontal plate 81 to adjust the height of the rigid telescopic connecting device 4; the adjusting bolt 83 can also be arranged between the first horizontal plate 81 and the bridge body to fixedly connect the rigid telescopic connecting device 4 and the first horizontal plate 81, and then the height of the rigid telescopic connecting device 4 can be adjusted by adjusting the distance between the first horizontal plate 81 and the bridge body through the adjusting bolt 83.
Further, as shown in fig. 2 and fig. 3, two sides of the rubber layer 5 in the width direction are respectively provided with a second L-shaped steel plate 9, the structure of the second L-shaped steel plate 9 may also refer to an angle steel structure, and the second L-shaped steel plate 9 includes a second vertical plate 92 and a second horizontal plate 91 that are perpendicular to each other, the second horizontal plate 91 is connected to the bottom of the 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 plate 9 is used as a reserved support of the asphalt layer 7, so as to block asphalt during the construction of the asphalt layer 7 and conveniently realize the height adjustment of the rubber layer 5 and the asphalt layer 7; meanwhile, the second L-shaped steel plate 9 can also be used as a rigid support between the rubber layer 5 and the asphalt layer 7, so that the asphalt layer 7 is prevented from being excessively deformed under pressure in daily use to influence the resilience of the rubber layer 5.
Further, as shown in fig. 2 and fig. 3, the height of the upper surface of the second vertical plate 92 is slightly lower than the upper surface 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 vertical plate 92, so that the upper end of the second vertical plate 92 is covered by the rubber layer 5 or the asphalt layer 7, and the upper end of the second vertical plate 92 is prevented from extending out of the road surface to affect the driving comfort.
As shown in fig. 2 to 4, in order to ensure the stability of the bridge in the large-span bridge engineering, sufficient margin needs to be reserved between the bridge bodies to adapt to the deformation of the bridge, at this time, the width of the structural joint 3 between the bridge bodies is large, the installation width of the opposite expansion joint is also wider than the common design width, and the laying width of the rubber layer 5 is also widened accordingly. In order to improve the connection stability between the large-span rubber layer 5 and the rigid telescopic connection device 4, the movable region 52 of the rubber layer 5 needs to be limited in the vertical direction, and therefore, further, the movable region 52 is further provided with a plurality of sliding blocks 53 on the lower surface of the rubber layer 5, the upper surface of the rigid telescopic connection device 4 corresponding to the sliding blocks 53 is provided with a plurality of embedded sliding grooves 41 arranged in the length direction of the bridge, the sliding blocks 53 are in sliding connection with the embedded sliding grooves 41 to realize the sliding connection between the movable region 52 of the rubber layer 5 and the rigid telescopic connection device 4, the movable region 52 of the rubber layer 5 is tightly attached to the rigid telescopic connection device 4 in the vertical direction through the arrangement of the sliding blocks 53 and the embedded sliding grooves 41, and can also move in a certain range in the horizontal direction without affecting the extension and retraction of the rubber layer 5. 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, a stud 522 is disposed through the upper surface of the rubber layer 5, an upper head of the stud 522 is limited on the upper surface of the rubber layer 5 by a first nut 523, a 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 and the embedded chute 41 are slidably connected by using the second nut 524 as the slider 53; in other embodiments, the sliding block 53 may be a fixed block embedded and fixed on the lower surface of the rubber layer 5, and the sliding connection between the movable region 52 of the rubber layer 5 and the rigid telescopic connection device 4 may be realized by sliding connection with the embedded sliding groove 41. It can also be understood that the rigid telescopic connecting device 4 provided with the embedded sliding groove 41 is preferably a comb plate type bridge telescopic device, and the steel plate type comb plate structure of the rigid telescopic connecting device can reasonably open the sliding groove and bear the rubber layer 5, so that the rigid telescopic connecting device can be well applied to large-span bridge engineering.
It can be understood that, as shown in fig. 5, the above-mentioned hidden expansion joint structure can be divided into a plurality of expansion joint blocks 100 according to the bridge width direction, each expansion joint block 100 can independently play a telescopic role, and a plurality of expansion joint blocks 100 are connected end to end along the bridge width direction and run through the arrangement to form an integral expansion joint. When a defect occurs in a certain expansion joint block 100, the expansion joint block 100 can be conveniently and independently removed for maintenance, repair or replacement, so that the maintenance convenience is improved, and the obstruction of smooth traffic due to the maintenance of the expansion joint structure is avoided.
The present invention has been described in terms of the preferred embodiment, and it is not intended to be limited to the embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A 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 seam and is used for connecting 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.
2. The hidden expansion joint structure as claimed in claim 1, wherein the top surfaces of the left and right pontoons are respectively provided with the same pavement system, comprising a pavement layer and an asphalt layer laid on the pavement layer; the upper surface height of the rigid telescopic connecting device is flush with the upper surface of the pavement layer, and the upper surface height of the rubber layer is flush with the upper surface of the asphalt layer.
3. The hidden expansion joint structure of claim 2, wherein two sides of the rigid expansion joint device in the width direction are respectively provided with a first L-shaped steel plate, the first L-shaped steel plate comprises a first vertical plate and a first transverse plate which are perpendicular to each other, and the first transverse plate is connected to the bottom of the rigid expansion joint device; the first riser connect in the relative outside of rigid telescopic connection device, just the upper surface height of first riser with the upper surface on layer of mating formation flushes.
4. The hidden expansion joint structure of claim 3, wherein the rigid telescopic connection device and the first transverse plate are connected to 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 transverse plate can be adjusted through the adjusting bolts.
5. The hidden expansion joint structure of any one of claims 2 to 4, wherein two sides of the rubber layer in the width direction are respectively provided with a second L-shaped steel plate, the second L-shaped steel plate comprises a second vertical plate and a second transverse plate which are perpendicular to each other, and the second transverse 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 to the asphalt layer.
6. The hidden expansion joint structure of claim 5, wherein the height of the upper surface of the second vertical plate is slightly lower than that of the upper surface of the asphalt layer, and the rubber layer and the asphalt layer are adhered to each other above the upper surface of the second vertical plate.
7. The hidden expansion joint structure as claimed in claim 1, wherein the movable region has a plurality of sliding blocks on the lower surface of the rubber layer, and a plurality of embedded sliding grooves are formed on the upper surface of the rigid expansion joint device corresponding to the sliding blocks, and the sliding blocks are slidably connected to the embedded sliding grooves.
8. The concealed expansion joint structure as claimed in claim 1, wherein the rubber layer is internally coated with steel fibers.
9. The concealed expansion joint structure as claimed in claim 1, wherein the rigid telescopic connecting device is a comb plate type bridge telescopic device.
10. The hidden expansion joint structure as claimed in claim 1, wherein the horizontal cross-sectional shape of the through hole is diamond, circular, oval or waist circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210815456.8A CN115262373A (en) | 2022-07-08 | 2022-07-08 | Hidden expansion joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210815456.8A CN115262373A (en) | 2022-07-08 | 2022-07-08 | Hidden expansion joint structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115262373A true CN115262373A (en) | 2022-11-01 |
Family
ID=83765278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210815456.8A Pending CN115262373A (en) | 2022-07-08 | 2022-07-08 | Hidden expansion joint structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115262373A (en) |
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2022
- 2022-07-08 CN CN202210815456.8A patent/CN115262373A/en active Pending
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Effective date of registration: 20230727 Address after: Floor 9, No. 41, Middle Tuqiao Street, Wuhou District, Chengdu, Sichuan 610041 Applicant after: Sichuan Jiaojian Urban Investment Construction Co.,Ltd. Applicant after: Sichuan Communications Construction Group Co.,Ltd. Applicant after: Sichuan Hualinsheng Construction Engineering Co.,Ltd. Address before: Floor 9, No. 41, Middle Tuqiao Street, Wuhou District, Chengdu, Sichuan 610041 Applicant before: Sichuan Jiaojian Urban Investment Construction Co.,Ltd. Applicant before: Sichuan Communications Construction Group Co.,Ltd. |
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Effective date of registration: 20240514 Address after: Building 9, 1st Floor, No. 41 Chuqiao Middle Street, Wuhou District, Chengdu City, Sichuan Province, 610041 Applicant after: Sichuan Jiaojian Urban Construction and Development Co.,Ltd. Country or region after: China Applicant after: Sichuan Communications Construction Group Co.,Ltd. Address before: Floor 9, No. 41, Middle Tuqiao Street, Wuhou District, Chengdu, Sichuan 610041 Applicant before: Sichuan Jiaojian Urban Investment Construction Co.,Ltd. Country or region before: China Applicant before: Sichuan Communications Construction Group Co.,Ltd. Applicant before: Sichuan Jiaojian Urban Construction and Development Co.,Ltd. |
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