CN114673081B - Noise reduction bridge expansion device with seamless processing - Google Patents
Noise reduction bridge expansion device with seamless processing Download PDFInfo
- Publication number
- CN114673081B CN114673081B CN202210433977.7A CN202210433977A CN114673081B CN 114673081 B CN114673081 B CN 114673081B CN 202210433977 A CN202210433977 A CN 202210433977A CN 114673081 B CN114673081 B CN 114673081B
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- Prior art keywords
- comb plate
- plate
- post
- bridge
- elastic cover
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- 230000009467 reduction Effects 0.000 title claims abstract description 13
- 238000012545 processing Methods 0.000 title description 4
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 229920001971 elastomer Polymers 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 4
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 3
- 238000004073 vulcanization Methods 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 244000126211 Hericium coralloides Species 0.000 description 1
- 101001017827 Mus musculus Leucine-rich repeat flightless-interacting protein 1 Proteins 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
-
- 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
- E01D19/067—Flat continuous joints cast in situ
-
- 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
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
Abstract
The invention discloses a seamless noise reduction bridge expansion device which comprises a movable comb plate, a fixed comb plate and an elastic cover plate. The movable comb plate and the fixed comb plate are respectively arranged on post-cast concrete structures with step structures at two sides of the corresponding bridge expansion joint; the two post-pouring concrete structures are close to the upper surface of the bridge deck pavement and are flush with the movable comb plate and the fixed comb plate; the movable comb plate, the fixed comb plate and the two post-pouring concrete structures are provided with a plurality of permanent magnets on the upper surfaces close to bridge deck pavement on the corresponding side; an embedded steel plate is arranged below the elastic cover plate and corresponds to the position of each permanent magnet; the upper surface of the elastic cover plate is flush with the upper surface of the bridge deck pavement. The application of the invention can effectively reduce the vibration and noise when the vehicle passes through the comb plate, and improve the driving smoothness.
Description
Technical Field
The invention relates to the technical field of bridge expansion joint construction, in particular to a noise reduction bridge expansion device with seamless treatment.
Background
The expansion device is an important part and a weak link of the bridge and bears the function of meeting the deformation requirement of the bridge. The comb plate type telescopic device is a common telescopic device, is of a modular structure and consists of a plurality of groups of standard modules and accessories. The standard module mainly comprises a movable comb plate (a seam crossing plate), a fixed comb plate and a multidirectional deflection hinge, and the modules are mutually independent. The accessory comprises a stainless steel slide plate, a rubber water stop, an anchor bolt and other components. The movable comb plate adopts a crossing type, and is connected with the bridge deck at one end of the bridge by a connecting anchor bolt; the fixed toothed plate is anchored on the bridge deck at the other end, the bottom forms a sliding surface by using a stainless steel plate, and the movable toothed plate and the fixed toothed plate form female and male comb teeth, so that the bearing and telescopic requirements of the bridge are met.
The expansion amount of the comb plate type expansion joint is larger, the smoothness is better, the comb plate type expansion joint is widely applied, but the comb plate type expansion joint has a plurality of problems. The two comb plates of the comb plate type expansion joint are disconnected, so that the overall rigidity of the expansion joint is reduced, when a vehicle, particularly a heavy vehicle, passes through, the comb plates are easy to vibrate and noise greatly, and the travelling comfort is reduced; the impact of the vehicle on the expansion joint easily causes the toothed plate to deform excessively, so that the following problems occur: crushing concrete at the transition section; the anchor bolt bears the phenomena of cap falling and breakage after the impact action of a vehicle and the extrusion shearing action of the steel plate; the toothed plate is repeatedly bent downwards and tilted upwards after being subjected to continuous rolling action of the vehicle. These problems are caused by the fact that the impact force is increased and the noise is increased when the vehicle passes through the bridge expansion joint.
With the rapid development of economy and the acceleration expansion of urban scale at present, the urban traffic volume is increased, the traffic noise problem along the urban viaduct road is increased, the complaint event about the traffic noise is increased, and the urban management is brought with greater pressure.
Therefore, how to reduce noise generated when a vehicle passes through the bridge expansion device, and to alleviate the increasingly severe noise environment, is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention provides a noise reduction bridge expansion device with seamless processing, which effectively reduces vibration and noise when a vehicle passes through a comb plate, and improves driving smoothness.
In order to achieve the above purpose, the invention discloses a seamless noise reduction bridge expansion device, which comprises a movable comb plate, a fixed comb plate and an elastic cover plate covering the movable comb plate and the fixed comb plate.
The movable comb plate and the fixed comb plate are respectively arranged on post-cast concrete structures with step structures at two sides of the corresponding bridge expansion joint;
the two post-pouring concrete structures positioned at two sides of the bridge expansion joint are respectively provided with a concave with rectangular cross section matched with the corresponding movable comb plate or the corresponding fixed comb plate on the upper surface close to the bridge expansion joint, and the concave with rectangular cross section is matched with the upper surface close to the bridge deck pavement at the corresponding side to form the step structure;
the two post-cast concrete structures are flush with the movable comb plate and the fixed comb plate close to the upper surface of the bridge deck pavement;
the movable comb plate, the fixed comb plate and the two post-cast concrete structures are provided with a plurality of permanent magnets on the upper surfaces close to bridge deck pavement at the corresponding side;
an embedded steel plate is arranged below the elastic cover plate and corresponds to the position of each permanent magnet;
the upper surface of the elastic cover plate is flush with the upper surface of the bridge deck pavement.
Preferably, a plurality of embedded anchor bolts are cast on the two post-cast concrete structures;
the lower end of each embedded anchor bolt is connected with the corresponding beam body below the post-cast concrete structure, and the upper end of each embedded anchor bolt is connected with the corresponding movable comb plate or the corresponding fixed comb plate.
Preferably, each permanent magnet is fixedly connected with the corresponding post-cast concrete structure, the corresponding movable comb plate or the corresponding fixed comb plate through a magnet clamping groove;
each permanent magnet is embedded in the corresponding magnet clamping groove in a clamping or bonding mode.
Preferably, the movable comb plate and the fixed comb plate are arranged at positions corresponding to the root parts of each comb, and the two post-cast concrete structures are arranged on the upper surface close to bridge deck pavement of the corresponding side, and the permanent magnets are arranged at the positions of the two sides of each comb root part on the movable comb plate or the corresponding fixed comb plate.
Preferably, each post-cast concrete structure is embedded with a plurality of permanent magnets near the upper surface paved on the bridge deck during pouring, and the permanent magnets of each post-cast concrete structure are uniformly distributed along the transverse direction of the bridge.
Preferably, the elastic cover plate is prefabricated in a factory by adopting neoprene, and is paved and bonded with the bridge deck through strong glue;
the bonding part between the elastic cover plate and the bridge deck pavement should be cleaned.
Preferably, each of the steel plates has a size covering the corresponding permanent magnet.
Preferably, the elastic cover plate and each steel plate are formed into a whole through hot vulcanization.
Preferably, the upper surface of the elastic cover plate is covered with a high-strength rubber wear-resistant layer;
the high-strength rubber wear-resistant layer comprises a plurality of wavy anti-skid grooves.
The invention has the beneficial effects that:
according to the invention, the elastic cover plate is paved and bonded with the bridge deck into a whole through the strong glue, so that gaps between the fixed comb teeth and the movable comb teeth are shielded, vibration and noise (reduced by more than 5 dB) when a vehicle passes through the comb plate are effectively reduced, and the driving smoothness is improved.
The invention adopts the covering of the elastic cover plate, effectively reduces the impact of the vehicle on the comb plate and prolongs the service life of the comb plate.
The elastic cover plate can be integrally prefabricated in a factory, can be cut on site according to the size of a bridge deck pavement gap, and can be conveniently and integrally replaced after damage or aging.
The elastic cover plate can effectively prevent rainwater from penetrating into the expansion joint, prevent the comb plate and the anchor bolt from rusting, and prolong the service life of the comb plate and the anchor bolt.
The conception, specific structure, and technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present invention.
Drawings
FIG. 1 shows a schematic cross-sectional structure of an embodiment of the present invention.
Fig. 2 is a schematic view showing the structure of the upper surfaces of the movable comb plate and the fixed comb plate in an embodiment of the present invention.
Fig. 3 is a schematic view showing a structure of a side of the elastic cover plate provided with a steel plate according to an embodiment of the invention.
Fig. 4 is a schematic structural view of a side of the elastic cover plate provided with the wavy anti-slip slot according to an embodiment of the invention.
Detailed Description
Examples
As shown in fig. 1 to 3, the noise reduction bridge expansion device of the seamless process includes a movable comb plate 21, a fixed comb plate 22, and an elastic cover plate 1 covering the movable comb plate 21 and the fixed comb plate 22.
Wherein, the movable comb plate 21 and the fixed comb plate 22 are respectively arranged on post-cast concrete structures 51 with step structures at two sides of the corresponding bridge expansion joint;
two post-pouring concrete structures 51 positioned on two sides of the bridge expansion joint are respectively provided with a concave with rectangular cross section matched with the corresponding movable comb plate 21 or the corresponding fixed comb plate 22 on the upper surface close to the bridge expansion joint, and a step structure is formed on the upper surface close to the bridge deck pavement 52 on the corresponding side;
the upper surfaces of the two post-cast concrete structures 51 close to the bridge deck pavement 52 are flush with the movable comb plate 21 and the fixed comb plate 22;
the movable comb plate 21, the fixed comb plate 22 and the two post-pouring concrete structures 51 are respectively provided with a plurality of permanent magnets 3 on the upper surface close to the bridge deck pavement 52 on the corresponding side;
an embedded steel plate 11 is arranged below the elastic cover plate 1 and corresponds to the position of each permanent magnet 3;
the upper surface of the resilient cover 1 is flush with the upper surface of the deck pavement 52.
According to the invention, the gap between the movable comb plate 21 and the fixed comb plate 22 is shielded by the elastic cover plate 1, so that the expansion joint and the bridge deck pavement 52 are integrated, vibration and noise when a vehicle passes through the movable comb plate 21 and the fixed comb plate 22 are effectively reduced, the elastic cover plate 1 is integrally prefabricated, and the damage degree of the movable comb plate 21 and the fixed comb plate 22 is reduced.
In practical application, the permanent magnet 3 adsorbs each other with the steel sheet 11 of embedding in the elastic cover plate, the permanent magnet 3 gives steel sheet 11 decurrent effort, make elastic cover plate 1 and movable broach board 21, fixed broach board 22 and post-cast concrete structure 51 closely link to each other, be difficult for removing deformation under the automobile tire impact, can have the relative movement of certain length between guaranteeing elastic cover plate 1 and movable broach board 21, fixed broach board 22, but elastic cover plate 1 even deformation is difficult for breaking moreover, the upper surface of elastic cover plate 1 and bridge deck pavement 52 are on same horizontal plane, form wholly with bridge deck pavement 52, on the basis of sheltering from the gap between the broach, vibration and noise when can also effectively reduce the vehicle and pass through the broach board.
The elastic cover plate 1 and the bridge deck pavement 52 form a whole, and the thickness is determined according to specific conditions such as the bridge deck pavement 52, the material of the elastic cover plate 1, noise requirements and the like.
In some embodiments, both post-cast concrete structures 51 are cast with a number of pre-buried anchor bolts 4;
the lower end of each embedded anchor bolt 4 is connected with a beam body 53 below the corresponding post-cast concrete structure 51, and the upper end is connected with the corresponding movable comb plate 21 or the corresponding fixed comb plate 22.
In practical application, the structure can form a stable comb tooth telescopic device structure.
In some embodiments, each permanent magnet 3 is fixedly connected to a respective post-cast concrete structure 51, a respective movable comb plate 21, or a respective fixed comb plate 22 by a magnet clamping groove 31;
each permanent magnet 3 is embedded in the corresponding magnet clamping groove 31 in a clamping or bonding mode.
In some embodiments, permanent magnets 3 are provided on the movable comb plate 21 and the fixed comb plate 22 at positions corresponding to the root of each comb, and on the upper surface of the two post-cast concrete structures 51 near the corresponding one of the side deck pavement 52 at positions corresponding to both sides of the corresponding movable comb plate 21 or the corresponding fixed comb plate 22 at the root of each comb.
In some embodiments, each post-cast concrete structure 51 is embedded with a plurality of permanent magnets 3 near the upper surface of the deck pavement 52 at the time of casting, and the plurality of permanent magnets 3 of each post-cast concrete structure 51 are uniformly arranged along the transverse direction of the bridge.
In some embodiments, the resilient cover 1 is prefabricated in a factory with neoprene and bonded to the deck pavement 52 by means of strong glue;
the bond between the resilient flap 1 and the deck pavement 52 should be cleaned.
In some embodiments, each steel plate 11 is sized to cover a respective permanent magnet 3.
In some embodiments, the elastic cover plate 1 is formed integrally with each steel plate 11 by heat vulcanization.
As shown in fig. 4, in some embodiments, the elastomeric cover plate 1 is covered with a high strength rubber wear layer;
the high strength rubber wear layer includes a number of wavy anti-skid grooves 12.
In practical application, the plurality of wavy anti-skid grooves 12 can increase the friction force between the tire and the elastic cover plate 1, and the wavy anti-skid grooves 12 and the tire obliquely impact, so that noise is less.
Compared with the common comb plate type bridge expansion joint device, the noise reduction bridge expansion device for seamless processing is expected to reduce the noise by more than 5dB when a vehicle passes through, so that the noise interference to residents along the line is reduced, and the driving comfort of drivers and passengers is improved.
The foregoing describes in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the invention by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (6)
1. The noise reduction bridge expansion device for seamless treatment comprises a movable comb plate (21), a fixed comb plate (22) and an elastic cover plate (1) which is covered on the movable comb plate (21) and the fixed comb plate (22); the method is characterized in that:
the movable comb plate (21) and the fixed comb plate (22) are respectively arranged on post-cast concrete structures (51) with step structures at two sides of the corresponding bridge expansion joint;
the two post-pouring concrete structures (51) positioned at two sides of the bridge expansion joint are respectively provided with a concave with rectangular cross section matched with the corresponding movable comb plate (21) or the corresponding fixed comb plate (22) on the upper surface close to the bridge expansion joint, and the concave with rectangular cross section is matched with the upper surface close to the bridge deck pavement (52) at the corresponding side to form the step structure;
the upper surfaces of the two post-cast concrete structures (51) close to bridge deck pavement (52) are flush with the movable comb plate (21) and the fixed comb plate (22);
the movable comb plate (21), the fixed comb plate (22) and the two post-pouring concrete structures (51) are respectively provided with a plurality of permanent magnets (3) on the upper surfaces of the bridge deck pavement (52) close to the corresponding side;
an embedded steel plate (11) is arranged below the elastic cover plate (1) and corresponds to the position of each permanent magnet (3);
the upper surface of the elastic cover plate (1) is flush with the upper surface of the bridge deck pavement (52);
two post-cast concrete structures (51) are respectively poured with a plurality of embedded anchor bolts (4);
the lower end of each embedded anchor bolt (4) is connected with a beam body (53) below the corresponding post-cast concrete structure (51), and the upper end is connected with the corresponding movable comb plate (21) or the corresponding fixed comb plate (22);
the upper surface of the elastic cover plate (1) is covered with a high-strength rubber wear-resistant layer;
the high-strength rubber wear-resistant layer comprises a plurality of wavy anti-skid grooves (12);
the elastic cover plate (1) is prefabricated in a factory by adopting neoprene, and is bonded with the bridge deck pavement (52) through strong glue;
the bonding part between the elastic cover plate (1) and the bridge deck pavement (52) is cleaned.
2. The seamless noise reduction bridge extension device according to claim 1, wherein each permanent magnet (3) is fixedly connected with the corresponding post-cast concrete structure (51), the corresponding movable comb plate (21) or the corresponding fixed comb plate (22) through a magnet clamping groove (31);
each permanent magnet (3) is embedded in the corresponding magnet clamping groove (31) in a clamping or bonding mode.
3. The seamless noise reduction bridge expansion device according to claim 1, wherein the movable comb plate (21) and the fixed comb plate (22) are provided with permanent magnets (3) at positions corresponding to the root of each comb, and the two post-cast concrete structures (51) are provided with permanent magnets (3) at positions corresponding to the movable comb plate (21) or the fixed comb plate (22) on both sides of each comb root on the upper surface of the bridge deck pavement (52) near the corresponding side.
4. The seamless noise reduction bridge expansion device according to claim 1, wherein a plurality of permanent magnets (3) are embedded in the upper surface of each post-cast concrete structure (51) near the deck pavement (52) when casting, and the plurality of permanent magnets (3) of each post-cast concrete structure (51) are uniformly arranged in the transverse direction of the bridge.
5. A seamlessly processed noise reducing bridge extension and retraction device according to claim 1, characterized in that each steel plate (11) is dimensioned to cover a respective permanent magnet (3).
6. The seamless noise reduction bridge extension and retraction device according to claim 1 wherein the elastic cover plate (1) is formed integrally with each steel plate (11) by heat vulcanization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210433977.7A CN114673081B (en) | 2022-04-24 | 2022-04-24 | Noise reduction bridge expansion device with seamless processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210433977.7A CN114673081B (en) | 2022-04-24 | 2022-04-24 | Noise reduction bridge expansion device with seamless processing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114673081A CN114673081A (en) | 2022-06-28 |
| CN114673081B true CN114673081B (en) | 2024-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210433977.7A Active CN114673081B (en) | 2022-04-24 | 2022-04-24 | Noise reduction bridge expansion device with seamless processing |
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| Country | Link |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010059627A (en) * | 2008-09-01 | 2010-03-18 | Heatrock Kogyo Kk | Expansion joint device |
| CN203977287U (en) * | 2014-08-15 | 2014-12-03 | 张静 | A kind of comb-tooth bridge expansion device |
| CN204608599U (en) * | 2015-05-11 | 2015-09-02 | 苏交科集团股份有限公司 | The sliding seamless expansion-contraction devices of comb |
| CN107815963A (en) * | 2017-10-30 | 2018-03-20 | 深圳市威士邦建筑新材料科技有限公司 | A kind of bridge expanssion joint |
| CN108035245A (en) * | 2017-12-26 | 2018-05-15 | 福州大学 | Novel fabricated seamless expansion-contraction devices and its construction method |
| CN214301241U (en) * | 2020-09-24 | 2021-09-28 | 衡水中交信德工程橡塑有限公司 | Magnetic force vibration/noise reduction's comb-tooth formula telescoping device |
| CN214695141U (en) * | 2021-04-14 | 2021-11-12 | 四川省交通建设集团股份有限公司 | Viaduct seamless expansion joint structure |
-
2022
- 2022-04-24 CN CN202210433977.7A patent/CN114673081B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010059627A (en) * | 2008-09-01 | 2010-03-18 | Heatrock Kogyo Kk | Expansion joint device |
| CN203977287U (en) * | 2014-08-15 | 2014-12-03 | 张静 | A kind of comb-tooth bridge expansion device |
| CN204608599U (en) * | 2015-05-11 | 2015-09-02 | 苏交科集团股份有限公司 | The sliding seamless expansion-contraction devices of comb |
| CN107815963A (en) * | 2017-10-30 | 2018-03-20 | 深圳市威士邦建筑新材料科技有限公司 | A kind of bridge expanssion joint |
| CN108035245A (en) * | 2017-12-26 | 2018-05-15 | 福州大学 | Novel fabricated seamless expansion-contraction devices and its construction method |
| CN214301241U (en) * | 2020-09-24 | 2021-09-28 | 衡水中交信德工程橡塑有限公司 | Magnetic force vibration/noise reduction's comb-tooth formula telescoping device |
| CN214695141U (en) * | 2021-04-14 | 2021-11-12 | 四川省交通建设集团股份有限公司 | Viaduct seamless expansion joint structure |
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| Publication number | Publication date |
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| CN114673081A (en) | 2022-06-28 |
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