CN211420850U - Bridge expansion joint device with height adjustable without concrete - Google Patents
Bridge expansion joint device with height adjustable without concrete Download PDFInfo
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- CN211420850U CN211420850U CN201921386206.7U CN201921386206U CN211420850U CN 211420850 U CN211420850 U CN 211420850U CN 201921386206 U CN201921386206 U CN 201921386206U CN 211420850 U CN211420850 U CN 211420850U
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Abstract
The utility model discloses a bridge expansion joint device with adjustable concrete height, a cross-sealing plate is fixedly connected with a first beam body through a detachable first connecting component, a fixed comb plate is fixedly connected with a second beam body through a detachable second connecting component, a first elastic height adjusting layer is arranged between the cross-sealing plate and the first beam body, a second elastic height adjusting layer is arranged between the fixed comb plate and the second beam body, one end of the second elastic height adjusting layer extends into the space between the second beam body and the cross-sealing plate, the opposite end of the cross-sealing plate and comb teeth is provided with a detachable longitudinal corner component, the opposite end of the cross-sealing plate and comb teeth is provided with a first protective component, and the opposite end of the fixed comb plate and comb teeth is provided with a second protective component; the cross sealing plate and the fixed comb plate can be quickly mounted and dismounted; the connecting pieces of the first connecting assembly, the second connecting assembly and the longitudinal corner assembly can be quickly detached and replaced, the working efficiency is improved, and the height-adjustable connecting device has the advantage of being adjustable.
Description
Technical Field
The utility model relates to a bridge expansion joint device especially relates to a no concrete height-adjustable's bridge expansion joint device.
Background
In order to meet the requirement of deformation of a bridge body, a bridge expansion joint device is generally arranged between two beam ends of a bridge, between the beam end and an abutment or on the hinged position of the bridge. The existing bridge expansion joint devices generally have the functions of longitudinal displacement, longitudinal corner and transverse displacement three-way displacement at the same time, and can meet the requirements of most bridges on the bridge expansion joint devices.
However, the installation process of the expansion joint device of the existing structure is as follows: when the expansion joint device carries out the field installation, at first when the bridge deck pavement layer of mating formation is whole to be covered with the installation notch of expansion joint device, then require to dig the clean up with the installation notch cutting according to expansion joint device's installation width, fix expansion joint device and pre-buried reinforcing bar, at last pour the transition section concrete and carry out the maintenance to the concrete in the reservation tank, just can open the expert car after waiting to mix transition section concrete maintenance to finish. The existing bridge expansion joint device has the following defects: firstly, after the expansion joint device is installed, the concrete at the transition section needs to be poured on site, meanwhile, the construction and maintenance of the concrete at the transition section are limited by factors of climate and construction period, the installation period is long, and meanwhile, the time of more than 10 days is needed for normally using a vehicle from the beginning of installation, so that the structure of the concrete at the transition section of the expansion joint device becomes a serious problem of influencing the progress and quality safety of the expansion joint device and even the whole bridge engineering;
secondly, when the expansion joint device damaged, need all dig the concrete and remove, then change the expansion joint device again, concreting, whole maintenance cycle is long, and the maintenance process is loaded down with trivial details.
Disclosure of Invention
The utility model aims to solve the technical problem that a nothing concrete height-adjustable's bridge expansion joint device that height-adjustable, can install fast/dismantle is provided.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: a bridge expansion joint device with height adjustable without concrete comprises a cross sealing plate and a fixed comb plate, wherein the cross sealing plate stretches across a first beam body and a second beam body arranged at two sides of the bridge expansion joint, the fixed comb plate is arranged on the second beam body, comb teeth are respectively arranged at the opposite ends of the cross sealing plate and the fixed comb plate, the cross sealing plate is fixedly connected with the first beam body through a first connecting assembly with adjustable height and a detachable type, the fixed comb plate is fixedly connected with the second beam body through a second connecting assembly with adjustable height and a detachable type, a first elastic height adjusting layer is arranged between the cross sealing plate and the first beam body, a second elastic height adjusting layer is arranged between the fixed comb plate and the second beam body, one end of the second elastic height adjusting layer extends into the space between the second beam body and the cross sealing plate, and the opposite end of the comb teeth are provided with a detachable longitudinal corner assembly, the opposite ends of the cross sealing plate and the comb teeth are provided with first protection assemblies, and the opposite ends of the fixed comb plate and the comb teeth are provided with second protection assemblies.
The longitudinal corner component comprises an elastic cushion, a base plate and a third connecting component, the third connecting component comprises a spherical bolt and a flange nut, a plurality of upper mounting holes are uniformly arranged on the cross-sealing plate at intervals, lower mounting holes corresponding to the upper mounting holes in position and quantity are arranged on the base plate, a plurality of jacks for the head of the spherical bolt to pass through are arranged on the base plate at intervals, the jacks are communicated with the lower mounting holes on the adjacent side, a plurality of limiting sleeves are fixed on the lower bottom surface of the base plate at intervals, limiting grooves with openings facing the jacks are arranged on the limiting sleeves, the limiting grooves are used for clamping the head of the spherical bolt, the limiting grooves are communicated with the lower mounting holes correspondingly, and the head of the spherical bolt is inserted into the jacks during installation, and horizontally moving the spherical bolt to enable the head of the spherical bolt to be embedded into the limiting groove, clamping a screw rod of the spherical bolt into the lower mounting hole, and sequentially penetrating the upper end of the spherical bolt through the elastic pad and the upper mounting hole and screwing the spherical bolt through the flange nut.
In the structure, when a seam crossing plate on a bridge expansion joint is subjected to deflection deformation due to heavy load and the seam crossing plate generates a longitudinal corner, an elastic pad below the seam crossing plate deforms, a spherical bolt also deforms along with the deflection of the seam crossing plate to generate the longitudinal corner, and the spherical head of the spherical bolt rotates in a limiting sleeve, so that the seam crossing plate is ensured to be safely used, and the limiting sleeve has a limiting function on a spherical nut; and because the base plate is provided with the jack for the head of the spherical bolt to pass through, the jack is communicated with the corresponding lower mounting hole, when the spherical bolt is mounted, the head of the spherical bolt is downwards inserted into the jack and horizontally moves into the limiting groove of the limiting sleeve along the limiting groove, the screw rod of the spherical bolt is clamped into the lower mounting hole at the moment, the upper end of the spherical bolt sequentially passes through the elastic pad and the upper mounting hole and is screwed through the flange nut, therefore, the spherical bolt can be conveniently mounted/taken down from the base plate, and when the spherical bolt and the flange nut are damaged, the spherical bolt can be quickly dismounted and replaced, so that the spherical bolt has the advantages of convenience in mounting and improvement on the working.
A gap is reserved between the outer wall of the head of the spherical bolt and the inner wall of the limiting groove, and a gap is reserved between the screw rod of the spherical bolt and the limiting groove and between the screw rod of the spherical bolt and the lower mounting hole respectively. A gap is reserved in the structure to ensure that the ball-shaped bolt can normally rotate, and the ball-shaped bolt is prevented from being broken.
The aperture of the jack is larger than the maximum diameter of the cross section of the head of the ball-type bolt. The head of the ball-shaped bolt can be ensured to be smoothly inserted into the base plate.
The head of the spherical bolt is relatively provided with two anti-slip surfaces, the anti-slip surfaces are planes which are longitudinally arranged, the limiting groove is provided with a limiting wall corresponding to the anti-slip surfaces, and a gap is reserved between the anti-slip surfaces and the limiting wall. Prevent that ball-type bolt from appearing skidding, becoming flexible in the use, guarantee its life.
The elastic cushion is a rubber cushion, a through hole is formed in the rubber cushion, the flange nut sequentially penetrates through the upper mounting hole and the through hole from top to bottom to be fixedly connected with the ball-shaped bolt, and the outer diameter of the flange nut is smaller than the diameter of the through hole and the diameter of the upper mounting hole respectively.
The longitudinal corner assembly further comprises a dust cover, the dust cover is arranged below the base plate, and the dust cover covers the limiting sleeve.
The first connecting assembly comprises a first anchoring bolt, a first fastening bolt and a first threaded sleeve, the upper end of the first anchoring bolt is in threaded connection with the lower end of the first threaded sleeve, the first anchoring bolt and the first threaded sleeve are embedded in concrete, and the first fastening bolt sequentially penetrates through the cross sealing plate, the first elastic height adjusting layer and the upper end of the first threaded sleeve to be screwed and fixed. The first anchor bolt and the first fastening bolt are connected through the first threaded sleeve, so that the cross sealing plate is quickly fixed or detached, and meanwhile, the first fastening bolt is adjusted according to the height of the bridge floor to ensure that the cross sealing plate is flush with an asphalt layer of the bridge floor, so that the bridge floor has the advantage of convenience in adjustment; because first anchor bolt and first swivel nut all bury in the concrete, consequently only first bolt is impaired relatively easily in using, only needs to change first bolt, the later maintenance of being convenient for.
The second coupling assembling include the connecting piece of two sets of relative settings, the connecting piece include second anchor bolt, second fastening bolt and second swivel nut, the upper end of second anchor bolt with the lower extreme threaded connection of second swivel nut, second anchor bolt with the second swivel nut pre-buried in the concrete, second fastening bolt pass in proper order fixed fishback the second elasticity altitude mixture control layer with the second swivel nut screw up fixedly. The second anchoring steel bars and the second fastening bolts are connected through the second threaded sleeves, so that the fixed comb plate is quickly fixed or detached, and meanwhile, the second fastening bolts are adjusted according to the height of the bridge deck to ensure that the fixed comb plate is flush with the bridge deck, so that the bridge deck has the advantage of convenience in adjustment; because second anchor bolt and second swivel nut all bury in the concrete, consequently only the second bolt is impaired relatively easily in using, only needs to change the second bolt, the later maintenance of being convenient for.
First protection component include first guard flap and first anchor reinforcing bar, first anchor reinforcing bar with first guard flap fixed connection, second protection component include second guard flap and set up and be in the second anchor reinforcing bar of second guard flap both sides.
The first elastic height adjusting layer is made of polymer or canvas rubber plate, and the material of the first elastic height adjusting layer is the same as that of the second elastic height adjusting layer.
The material of first elasticity altitude mixture control layer and second elasticity altitude mixture control layer be the polymer, the thickness of first elasticity altitude mixture control layer and second elasticity altitude mixture control layer is 5 ~ 7 mm.
The material of first elasticity altitude mixture control layer and second elasticity altitude mixture control layer be canvas rubber slab, the thickness on first elasticity altitude mixture control layer and second elasticity altitude mixture control layer is 2 ~ 4 mm.
Compared with the prior art, the utility model has the advantages that the utility model discloses a bridge expansion joint device with adjustable height without concrete, because the cross sealing plate of the utility model is fixedly connected with the first beam body through the detachable first connecting component with adjustable height, the fixed comb plate is fixedly connected with the second beam body through the detachable second connecting component with adjustable height, the first elastic height adjusting layer is arranged between the cross sealing plate and the first beam body, and the second elastic height adjusting layer is arranged between the fixed comb plate and the second beam body, when the cross sealing plate and the fixed comb plate have height difference with the bridge floor in the installation process, the heights of the first connecting assembly and the second connecting assembly can be adjusted in a matched mode through adjusting the thicknesses of the first elastic height adjusting layer and/or the second elastic height adjusting layer, so that the cross sealing plate and the fixed comb plate are respectively flush with the bridge deck;
the detachable longitudinal corner component is arranged at the opposite end of the cross sealing plate and the comb teeth, so that the expansion joint device can realize the longitudinal corner function, and the safe use of the cross sealing plate is ensured;
because the first connecting assembly, the second connecting assembly and the longitudinal corner assembly are all detachable, the cross sealing plate and the fixed comb plate can be quickly installed and detached; in the actual use process, the connecting pieces of the first connecting assembly, the second connecting assembly and the longitudinal corner assembly are stressed and easily damaged, so that the detachable structure can rapidly detach and replace the connecting pieces, the working efficiency is improved, and the maintenance period is shortened;
because the looks remote site of striding shrouding and broach is provided with first protection component, and fixed fishback is provided with the second protection component with the looks remote site of broach, adopts first protection component and second protection component to replace traditional changeover portion concrete structure, need not the maintenance, shortens construction cycle, has played the effect of protection to the telescoping device simultaneously.
Drawings
Fig. 1 is a schematic structural view after installation of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
fig. 3 is a perspective view (one) of the present invention;
fig. 4 is a perspective view (ii) of the present invention;
fig. 5 is a cross-sectional view of the present invention;
fig. 6 is a schematic structural view of the cushion plate, the elastic cushion and one set of the connecting components of the present invention after being assembled;
fig. 7 is a schematic structural view of the stop collar of the present invention;
fig. 8 is a schematic structural view of the connection assembly of the present invention;
fig. 9 is a front view of the elastic pad of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
The first embodiment is as follows: as shown in fig. 1, a concrete-free height-adjustable bridge expansion joint device comprises a cross-sealing plate 3 crossing over a first beam body 1 and a second beam body 2 arranged at two sides of the bridge expansion joint and a fixed comb plate 4 arranged on the second beam body 2, comb teeth 5 are respectively arranged at opposite ends of the cross-sealing plate 3 and the fixed comb plate 4, the cross-sealing plate 3 is fixedly connected with the first beam body 1 through a height-adjustable detachable first connecting component 6, the fixed comb plate 4 is fixedly connected with the second beam body 2 through a height-adjustable detachable second connecting component 7, a first elastic height adjusting layer 8 is arranged between the cross-sealing plate 3 and the first beam body 1, a second elastic height adjusting layer 9 is arranged between the fixed comb plate 4 and the second beam body 2, one end of the second elastic height adjusting layer 9 extends into between the second beam body 2 and the cross-sealing plate 3, a detachable longitudinal corner component 10 is arranged at an opposite end of the cross-sealing plate 3 and the comb teeth 5, the opposite ends of the cross sealing plate 3 and the comb teeth 5 are provided with a first protection component 11, and the opposite ends of the fixed comb plate 4 and the comb teeth 5 are provided with a second protection component 12.
In this embodiment, as shown in fig. 2 to 9, the longitudinal corner assembly 10 includes an elastic pad 110, a backing plate 120 and a third connecting assembly 130, the third connecting assembly 130 includes a ball-shaped bolt 131 and a flange nut 132, a plurality of upper mounting holes 31 are uniformly spaced on the cross-sealing plate 3, a plurality of lower mounting holes 121 corresponding to the upper mounting holes 31 in position and number are disposed on the backing plate 120, a plurality of insertion holes 122 for the heads of the ball-shaped bolt 131 to pass through are spaced on the backing plate 120, the insertion holes 122 are communicated with the lower mounting holes 121 on the adjacent side, a plurality of position-limiting sleeves 140 are fixed on the lower bottom surface of the backing plate 120 at intervals, a position-limiting groove 141 having an opening facing the insertion holes 122 is disposed on the position-limiting sleeves 140, the position-limiting groove 141 is used for clamping the head of the ball-shaped bolt 131, the position-limiting groove 141 is communicated with the corresponding lower mounting hole 121, when mounting, the ball-shaped bolt 131 is inserted into the insertion holes 122, and the ball, at this time, the screw of the ball bolt 131 is inserted into the lower mounting hole 121, and the upper end of the ball bolt 131 sequentially passes through the elastic pad 110 and the upper mounting hole 31 and is tightened by the flange nut 132.
In this embodiment, a gap is left between the outer wall of the head of the ball-shaped bolt 131 and the inner wall of the limiting groove 141, and a gap is left between the screw of the ball-shaped bolt 131 and the limiting groove 141, and between the screw of the ball-shaped bolt 131 and the lower mounting hole 121, respectively.
In this particular embodiment, the bore diameter of the socket 122 is greater than the maximum diameter of the head cross-section of the ball-type bolt 131.
In this embodiment, the elastic pad 110 is a rubber pad, the rubber pad is provided with a through hole 111, a flange nut 132 passes through the upper mounting hole 31 and the through hole 111 from top to bottom in sequence to be fixedly connected with the ball bolt 131, and the outer diameter of the flange nut 132 is smaller than the diameter of the through hole 111 and the diameter of the upper mounting hole 31 respectively.
In this particular embodiment, the longitudinal corner assembly 10 further includes a dust cover 160, the dust cover 160 being disposed below the backing plate 120, and the dust cover 160 covering the stop collar 140.
In this embodiment, the first connecting assembly 6 includes a first anchor bolt 61, a first fastening bolt 62 and a first threaded sleeve 63, an upper end of the first anchor bolt 61 is in threaded connection with a lower end of the first threaded sleeve 63, the first anchor bolt 61 and the first threaded sleeve 63 are pre-embedded in the concrete 17, and the first fastening bolt 62 sequentially penetrates through the cross sealing plate 3, the first elastic height adjusting layer 8 and an upper end of the first threaded sleeve 63 to be screwed and fixed.
In this embodiment, the second connecting assembly 7 includes two sets of connecting members disposed oppositely, each connecting member includes a second anchor bolt 71, a second fastening bolt 72, and a second screw sleeve 73, an upper end of the second anchor bolt 71 is in threaded connection with a lower end of the second screw sleeve 73, the second anchor bolt 71 and the second screw sleeve 73 are pre-embedded in the concrete 17, and the second fastening bolt 72 sequentially penetrates through the fixed comb plate 4, the second elastic height adjusting layer 9, and the second screw sleeve 73 is screwed and fixed.
In this embodiment, the first shielding assembly 11 includes a first shielding plate 113 and a first anchoring bar 114, the first anchoring bar 114 is fixedly connected to the first shielding plate 113, and the second shielding assembly 12 includes a second shielding plate 123 and a second anchoring bar 124 disposed at both sides of the second shielding plate 123.
In this particular embodiment, the material of the first resilient height-adjusting layer 8 is a polymer, which may be a resinous polymer, polyurethane or EHP polymer, and the material of the first resilient height-adjusting layer 8 is the same as the material of the second resilient height-adjusting layer 9. Wherein, the thickness of first elasticity altitude mixture control layer 8 and second elasticity altitude mixture control layer 9 is 5 ~ 7 mm.
Example two: the other structure is the same as the first embodiment, but the difference is that the head of the ball bolt 131 is provided with two anti-slip surfaces 1311 oppositely, the anti-slip surfaces 1311 are planes arranged longitudinally, the limiting groove 141 is provided with a limiting wall 1411 corresponding to the anti-slip surfaces 1311, and a gap is left between the anti-slip surfaces 1311 and the limiting wall 1411.
Example three: the other structure is the same as the first embodiment, except that the material of the first elastic height adjusting layer 8 is a canvas rubber sheet, and the material of the first elastic height adjusting layer 8 is the same as the material of the second elastic height adjusting layer 9. Wherein, the thickness of first elasticity altitude mixture control layer 8 and second elasticity altitude mixture control layer 9 is 2 ~ 4 mm.
Claims (10)
1. A bridge expansion joint device with adjustable concrete height comprises a cross sealing plate and a fixed comb plate, wherein the cross sealing plate stretches across a first beam body and a second beam body arranged at two sides of the bridge expansion joint, the fixed comb plate is arranged on the second beam body, comb teeth are respectively arranged at the opposite ends of the cross sealing plate and the fixed comb plate, the bridge expansion joint device is characterized in that the cross sealing plate is fixedly connected with the first beam body through a detachable first connecting assembly with adjustable height, the fixed comb plate is fixedly connected with the second beam body through a detachable second connecting assembly with adjustable height, a first elastic height adjusting layer is arranged between the cross sealing plate and the first beam body, a second elastic height adjusting layer is arranged between the fixed comb plate and the second beam body, and one end of the second elastic height adjusting layer extends into the space between the second beam body and the cross sealing plate, the opposite ends of the cross sealing plate and the comb teeth are provided with detachable longitudinal corner assemblies, the opposite ends of the cross sealing plate and the comb teeth are provided with first protective assemblies, and the opposite ends of the fixed comb plate and the comb teeth are provided with second protective assemblies.
2. The concrete-free height-adjustable bridge expansion joint device according to claim 1, wherein the longitudinal corner assembly comprises an elastic cushion, a base plate and a third connecting assembly, the third connecting assembly comprises a ball-shaped bolt and a flange nut, a plurality of upper mounting holes are uniformly arranged on the cross sealing plate at intervals, lower mounting holes corresponding to the upper mounting holes in position and quantity are arranged on the base plate, a plurality of jacks for the heads of the ball-shaped bolt to pass through are arranged on the base plate at intervals, the jacks are communicated with the lower mounting holes on the adjacent side, a plurality of limiting sleeves are fixed on the lower bottom surface of the base plate at intervals, limiting grooves with openings facing the jacks are arranged on the limiting sleeves, the limiting grooves are used for clamping the heads of the ball-shaped bolt, and are communicated with the corresponding lower mounting holes, during installation, the head of the spherical bolt is inserted into the jack, the spherical bolt is horizontally moved to enable the head of the spherical bolt to be embedded into the limiting groove, at the moment, the screw rod of the spherical bolt is clamped into the lower mounting hole, and the upper end of the spherical bolt sequentially penetrates through the elastic pad and the upper mounting hole and is screwed up through the flange nut.
3. The concrete-free height-adjustable bridge expansion joint device according to claim 2, wherein a gap is left between the outer wall of the head of the ball-shaped bolt and the inner wall of the limiting groove, and a gap is left between the screw of the ball-shaped bolt and the limiting groove and between the screw of the ball-shaped bolt and the lower mounting hole respectively.
4. The concrete-free height adjustable bridge expansion joint apparatus as claimed in claim 2, wherein the aperture of said insertion hole is larger than the maximum diameter of the cross section of the head of said ball bolt.
5. The concrete-free height-adjustable bridge expansion joint device as claimed in claim 2, wherein the head of said ball bolt is oppositely provided with two anti-slip surfaces, said anti-slip surfaces are longitudinally arranged planes, said limiting groove is provided with a limiting wall corresponding to said anti-slip surfaces, and a gap is left between said anti-slip surfaces and said limiting wall.
6. The concrete-free height-adjustable bridge expansion joint device as claimed in claim 2, wherein the elastic pad is a rubber pad, a through hole is provided on the rubber pad, the flange nut sequentially passes through the upper mounting hole and the through hole from top to bottom to be fixedly connected with the ball-shaped bolt, and the outer diameters of the flange nut are respectively smaller than the diameter of the through hole and the diameter of the upper mounting hole.
7. The concrete-free height-adjustable bridge expansion joint device according to claim 1, wherein the first connecting assembly comprises a first anchoring bolt, a first fastening bolt and a first threaded sleeve, the upper end of the first anchoring bolt is in threaded connection with the lower end of the first threaded sleeve, the first anchoring bolt and the first threaded sleeve are pre-embedded in concrete, and the first fastening bolt sequentially penetrates through the bridging plate and the first elastic height adjusting layer to be screwed and fixed with the upper end of the first threaded sleeve.
8. The concrete-free height-adjustable bridge expansion joint device according to claim 1, wherein the second connecting assembly comprises two sets of oppositely arranged connecting members, each connecting member comprises a second anchoring bolt, a second fastening bolt and a second threaded sleeve, the upper end of the second anchoring bolt is in threaded connection with the lower end of the second threaded sleeve, the second anchoring bolt and the second threaded sleeve are embedded in concrete, and the second fastening bolt sequentially penetrates through the fixed comb plate and the second elastic height adjusting layer to be screwed and fixed with the second threaded sleeve.
9. The apparatus as claimed in claim 8, wherein the first protective assembly comprises a first protective shield and a first anchoring bar, one side of the first anchoring bar is fixedly connected to the first protective shield, and the second protective assembly comprises a second protective shield and second anchoring bars disposed at two sides of the second protective shield.
10. The apparatus for a bridge expansion joint with adjustable height without concrete according to any one of claims 1-7, wherein the material of said first elastic height adjustment layer is polymer or canvas rubber plate, and the material of said first elastic height adjustment layer is the same as the material of said second elastic height adjustment layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921386206.7U CN211420850U (en) | 2019-08-23 | 2019-08-23 | Bridge expansion joint device with height adjustable without concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921386206.7U CN211420850U (en) | 2019-08-23 | 2019-08-23 | Bridge expansion joint device with height adjustable without concrete |
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| Publication Number | Publication Date |
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| CN211420850U true CN211420850U (en) | 2020-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921386206.7U Active CN211420850U (en) | 2019-08-23 | 2019-08-23 | Bridge expansion joint device with height adjustable without concrete |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485286A (en) * | 2019-08-23 | 2019-11-22 | 宁波路宝科技实业集团有限公司 | A kind of height-adjustable bridge expansion joint installation of no concrete and its construction method |
-
2019
- 2019-08-23 CN CN201921386206.7U patent/CN211420850U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485286A (en) * | 2019-08-23 | 2019-11-22 | 宁波路宝科技实业集团有限公司 | A kind of height-adjustable bridge expansion joint installation of no concrete and its construction method |
| CN110485286B (en) * | 2019-08-23 | 2024-03-22 | 宁波路宝科技实业集团有限公司 | Bridge expansion joint device with adjustable concrete-free height and construction method thereof |
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