CN112391944A - Bridge expansion joint device - Google Patents
Bridge expansion joint device Download PDFInfo
- Publication number
- CN112391944A CN112391944A CN202011330487.1A CN202011330487A CN112391944A CN 112391944 A CN112391944 A CN 112391944A CN 202011330487 A CN202011330487 A CN 202011330487A CN 112391944 A CN112391944 A CN 112391944A
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- expansion joint
- bridge expansion
- cover plate
- spring
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- 230000003139 buffering effect Effects 0.000 description 1
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- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a bridge expansion joint device which comprises mounting plates arranged on two sides of a bridge expansion joint, wherein an elastic structure is connected between the mounting plates, and the top of each mounting plate is covered with an upper cover plate; the elastic structure comprises connecting shafts respectively connected to the inner sides of the mounting plates and a spring, and the spring is connected between the two connecting shafts; a protective barrel which completely wraps the spring and the part of the connecting shaft connected with the spring is arranged outside the connecting part of the connecting shaft and the spring. Carry out most stable connection through setting up the connecting axle, increase a small segment spring and carry out elastic deformation's adaptation. Meanwhile, only a small section of spring needs to be maintained and replaced, so that the cost is reduced, and the stability is improved.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to a bridge expansion joint device.
Background
Bridge expansion joints are typically provided between two beam ends, between a beam end and an abutment, or at the junction of a bridge, for the purpose of accommodating displacement and coupling between the superstructure caused by vehicle loads and bridge building materials or temperature changes. The expansion joint needs to be freely telescopic, firm and reliable, and the vehicle needs to be smooth when running and has no sudden jump and noise; to prevent clogging; the installation, the inspection, the maintenance and the dirt elimination are all simple and convenient.
Bridge expansion joints are typically of the butt-joint, steel-bearing, shear (plate), modular, and spring type.
1) The butt joint type expansion joint device can be divided into a filling butt joint type and an embedding butt joint type according to different structural forms and stress characteristics. The filling butt joint type expansion device is characterized in that a gap is filled with materials such as asphalt, wood boards, hemp fibers, rubber and the like, and an expansion body is in a compressed state under any condition. The telescopic device is generally used for conventional bridge engineering with the telescopic quantity below 40mm, but is not uncommon. The embedded fixed type butt joint expansion joint device utilizes steel members with different shapes to firmly embed and fix the rubber strips (belts) with different shapes, absorbs the deformation of a beam body through the tension and compression deformation of the rubber strips (belts), and the telescopic body can be in a compressed state. May also be in tension.
2) The modulus support mode is that when the expansion deformation of the bridge exceeds 50mm, a steel expansion device is usually adopted. When a vehicle runs, the telescopic device is often subjected to flapping action due to rotation or bending deformation of the beam end, the noise is high, and the structure is easy to damage. Therefore, a device provided with a bolt spring is used to fix the sliding steel plate to reduce rattling and noise, and the structure of the expansion joint is relatively complicated.
3) The shearing type is that the device uses rubber belts with various cross-sectional shapes as the expansion device of the filling and embedding material. Because the rubber is rich in elasticity, the rubber is easy to paste, can meet the deformation requirement and has a waterproof function. Has been widely applied to domestic and foreign bridge engineering.
4) The steel supporting type telescopic device, namely a plate type rubber product, is difficult to meet the requirement of large displacement, and the steel type telescopic device is difficult to seal and waterproof, easily causes impact on a vehicle and influences the driving performance of the vehicle. Therefore, various module supporting type (module type) bridge expansion device series which are combined by using rubber materials with good shock absorption and buffering performance and easy sealing and special-shaped steel with high strength and good performance and can bear vehicle load under the condition of large displacement appear.
5) The elastic device comprises an elastic body expansion device which is divided into a zinc-iron sheet expansion joint and a TST gravel elastic expansion joint, wherein the elastic body expansion device is a simple expansion joint device, for bridges with medium and small spans, when the expansion amount is within 20-40 mm, the TST gravel elastic expansion joint device can be adopted, a specially-made elastic plastic material TST is heated and melted, and then is poured into cleaned and heated gravel to form the TST gravel elastic expansion joint, the gravel is used for supporting vehicle load, and the TST elastic plastic body can meet the requirement of the expansion amount under the condition of-25-60 ℃.
The bridge expansion joint that adopts at present need use sealing material to seal usually during the installation, because sealing material is harmful to the human body, consequently produces destruction to constructor's healthy, also can cause the pollution to the environment, and maintenance, maintenance at every turn, eliminate filth all very troublesome moreover.
Further, the existing expansion joint which is sealed by adopting a sealing material is improved, and an expansion joint structure which is replaced by an elastic structure is further produced. However, for the expansion joint of such elastic structure, because the expansion joint is a structure disposed on the bridge, it is required to be stable and durable. The expansion joint that elastic structure such as spring was adopted to the conventionality, stability is relatively poor, probably hardly returns former after elastic deformation. Simultaneously, the expansion joint that uses spring etc. to carry out elastic support completely, when maintaining the spare part, the cost is higher.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the bridge expansion joint device, most parts of stable connection is carried out by arranging the connecting shaft, and the adaptation of elastic deformation of a small section of spring is added. Meanwhile, only a small section of spring needs to be maintained and replaced, so that the cost is reduced, and the stability is improved.
The specific implementation content of the invention is as follows:
the invention provides a bridge expansion joint device which comprises mounting plates arranged on two sides of a bridge expansion joint, wherein an elastic structure is connected between the mounting plates, and the top of each mounting plate is covered with an upper cover plate;
the elastic structure comprises connecting shafts respectively connected to the inner sides of the mounting plates and a spring, and the spring is connected between the two connecting shafts;
a protective barrel which completely wraps the spring and the part of the connecting shaft connected with the spring is arranged outside the connecting part of the connecting shaft and the spring.
In order to better realize the invention, two ends of the protection cylinder are provided with structures protruding inwards, the front section of the connecting shaft is provided with a matched connecting groove, and the protrusions of the two sections of the protection cylinder are arranged in the connecting groove and can have certain displacement adaptive capacity along with the increase/decrease of the expansion gap of the bridge.
In order to better realize the invention, the upper cover plate is a complete steel plate, the bottoms of the two ends of the upper cover plate are provided with lugs, the top of the mounting plate is provided with a limiting groove, the upper cover plate is arranged in the limiting groove through the lugs at the bottom, and the lugs have certain adaptive displacement in the limiting groove along with the expansion and reduction of the bridge expansion gap.
In order to better realize the invention, the upper cover plate is an integrally processed steel plate, is divided into two parts and is respectively installed on the tops of the two installation plates through threads, and a telescopic gap is reserved between the two steel plates after the two steel plates are installed on the tops of the installation plates.
In order to better implement the present invention, further, the cutting slit of the upper cover plate after being integrally processed is in a square wave shape/wavy line shape, and the expansion slit formed after being mounted on the top of the mounting plate is also in a square wave shape/wavy line shape.
In order to better implement the invention, further, a connecting ring is arranged at the tail end of the connecting shaft, and the spring is detachably connected with the connecting shaft through the connecting ring; the protection barrel is of a detachable structure, and a connecting buckle is arranged outside the protection barrel and used for assembling and fixing the protection barrel.
In order to better realize the invention, the water filter further comprises a lower cover plate, wherein the lower cover plate is arranged at the bottom of the mounting plate, and a water filtering hole is formed in the lower cover plate.
In order to better implement the present invention, further, the lower cover plate has a plate-shaped structure with the highest thickness in the middle section and gradually reduced thickness by diffusion towards the two ends, and is used for enabling the falling water at the bottom to flow out from the two ends.
In order to better realize the invention, the installation structure further comprises a fixed wing plate, the fixed wing plate is arranged on the outer side of the installation plate, the fixed wing plate is of a plate-shaped structure extending outwards and transversely, and the outer tail end of the fixed wing plate is provided with an upward steel plate and a downward steel plate.
In order to better realize the invention, the connecting device further comprises a fixed mounting seat, wherein the fixed mounting seat is arranged on the inner side of the mounting plate, and the connecting shaft is connected with the inner side of the mounting plate through the fixed mounting seat.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the stability is stronger;
(2) the replacement is convenient, and the easily-worn spring only uses a small section, so that the replacement cost is low;
(3) the stability of the device installed on the bridge is further improved by fixedly installing the wing plates.
Drawings
FIG. 1 is a top view of the device without the protective cartridge;
FIG. 2 is a top view of the device with the resilient structure mounted;
FIG. 3 is a schematic cross-sectional view of the elastic structure of the device;
FIG. 4 is a schematic view of the connection shaft and spring of the device;
FIG. 5 is a schematic cross-sectional view of the present device with two sets of springs;
FIG. 6 is a schematic view of the protection barrel of the device assembled by a connecting buckle;
FIG. 7 is a schematic view of the apparatus for mounting a plurality of rows of resilient structures;
FIG. 8 is a schematic structural view of the mounting plate and the upper cover plate mounted via a limiting groove;
FIG. 9 is a schematic structural view of the upper cover plate divided into two parts and the gap having a square waveform;
FIG. 10 is a schematic view of the structure of the upper cover plate divided into two parts and the gap in a wavy line shape;
FIG. 11 is a side sectional view of the device showing the structure in which the lower cover plate is arranged so that the thickness decreases toward both ends.
Wherein: 1. the water filter comprises a mounting plate, 2, an upper cover plate, 3, an elastic structure, 31, a connecting shaft, 32, a spring, 33, a protective cylinder, 34, a connecting ring, 35, a connecting buckle, 4, a lower cover plate, 5, a water filtering hole, 6, a fixed wing plate, 7, a fixed base, 8, a limiting groove, 9 and a bump.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and therefore should not be considered as a limitation to the scope of protection. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed 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.
Example 1:
the embodiment provides a bridge expansion joint device, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, and fig. 7, including mounting plates 1 mounted at two sides of a bridge expansion joint, an elastic structure 3 connected between the mounting plates 1, and an upper cover plate 2 covering the top of the mounting plates 1;
the elastic structure 3 comprises connecting shafts 31 respectively connected to the inner sides of the mounting plates 1, and further comprises springs 32, and the springs 32 are connected between the two connecting shafts 31;
a protective cylinder 33 which completely wraps the spring 32 and the part connecting the connecting shaft 31 and the spring 32 is arranged outside the connecting part of the connecting shaft 31 and the spring 32.
The working principle is as follows: fig. 1 is a schematic diagram of installing a group of elastic structures 3, fig. 2 is a schematic diagram of setting two rows of elastic structures 3, and fig. 7 is a schematic diagram of setting one row with multiple beats, and different numbers of elastic structures 3 are set according to requirements to realize application to bridges with different specifications and requirements.
Example 2:
in this embodiment, on the basis of the above embodiment 1, in order to better implement the present invention, as shown in fig. 3, fig. 4, and fig. 5, two ends of the protection cylinder 33 are provided with structures protruding inwards, a matching connection groove is provided at a front section of the connection shaft 31, and two sections of protrusions of the protection cylinder 33 are installed in the connection groove and can have a certain displacement adaptive amount along with the increase/decrease of the bridge expansion gap.
Other parts of this embodiment are the same as those of embodiment 1, and thus are not described again.
Example 3:
in this embodiment, on the basis of any one of the above embodiments 1-2, in order to better implement the present invention, as shown in fig. 8, the upper cover plate 2 is a complete steel plate, the bottom parts of the two ends of the upper cover plate 2 are provided with the protrusions 9, the top part of the mounting plate 1 is provided with the limiting groove 8, the upper cover plate 2 is installed in the limiting groove 8 through the protrusions 9 at the bottom part, and the protrusions 9 have a certain adaptive displacement in the limiting groove 8 along with the expansion and reduction of the bridge expansion gap.
Other parts of this embodiment are the same as any of embodiments 1-2 described above, and thus are not described again.
Example 4:
in this embodiment, on the basis of any one of the above embodiments 1 to 3, in order to better implement the present invention, as shown in fig. 9 and 10, the upper cover plate 2 is an integrally processed steel plate, which is divided into two parts, and is respectively installed on the top portions of the two installation plates 1 through threads, and after the two steel plates are installed on the top portions of the installation plates 1, a telescopic gap is left between the two steel plates.
Other parts of this embodiment are the same as any of embodiments 1 to 3, and thus are not described again.
Example 5:
in this embodiment, in order to better implement the present invention based on any one of the above embodiments 1 to 4, as shown in fig. 9 and 10, the cutting slit formed by integrally processing the upper cover plate 2 is in a square wave shape/wavy line shape, and the expansion slit formed after being mounted on the top of the mounting plate 1 is also in a square wave shape/wavy line shape.
Other parts of this embodiment are the same as any of embodiments 1 to 4, and thus are not described again.
Example 6:
in this embodiment, on the basis of any one of the above embodiments 1 to 5, in order to better implement the present invention, further, as shown in fig. 3, 4, 5 and 6, a connection ring 34 is disposed at the end of the connection shaft 31, and the spring 32 is detachably connected to the connection shaft 31 through the connection ring 34; the protection barrel 33 is of a detachable structure, and a connecting buckle 35 is arranged outside the protection barrel 33 and used for assembling and fixing the protection barrel.
Other parts of this embodiment are the same as any of embodiments 1 to 5, and thus are not described again.
Example 7:
in this embodiment, on the basis of any one of the above embodiments 1 to 6, in order to better implement the present invention, as shown in fig. 7 and 11, the present invention further includes a lower cover plate 4, where the lower cover plate 4 is disposed at the bottom of the mounting plate 1, and the lower cover plate 4 is provided with a water filtering hole 5; further, the lower cover plate 4 is a plate-shaped structure with the highest middle section thickness and gradually reduced diffusion thickness towards the two ends, and is used for enabling the falling water at the bottom to flow out from the two ends.
Other parts of this embodiment are the same as any of embodiments 1 to 6, and thus are not described again.
Example 8:
in this embodiment, on the basis of any one of the above embodiments 1 to 7, in order to better implement the present invention, as shown in fig. 1, 2, 7, 9, and 10, the present invention further includes a fixing wing plate 6, where the fixing wing plate 6 is disposed on an outer side of the mounting plate 1, the fixing wing plate 6 is a plate-shaped structure extending outward and laterally, and an upward steel plate and a downward steel plate are disposed at an outer end of the fixing wing plate 6.
Other parts of this embodiment are the same as any of embodiments 1 to 7, and thus are not described again.
Example 9:
in this embodiment, on the basis of any one of the embodiments 1 to 8, in order to better implement the present invention, as shown in fig. 1, the present invention further includes a fixing seat 7, where the fixing seat 7 is installed inside the mounting plate 1, and the connecting shaft 31 is connected to the inside of the mounting plate 1 through the fixing seat 7.
Other parts of this embodiment are the same as any of embodiments 1 to 8, and thus are not described again.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (10)
1. The bridge expansion joint device is characterized by comprising mounting plates (1) arranged at two sides of a bridge expansion joint, wherein an elastic structure (3) is connected between the mounting plates (1), and the top of each mounting plate (1) is covered with an upper cover plate (2);
the elastic structure (3) comprises connecting shafts (31) respectively connected to the inner sides of the mounting plates (1) and springs (32), and the springs (32) are connected between the two connecting shafts (31);
a protective barrel (33) which completely wraps the spring (32) and the part of the connection between the connecting shaft (31) and the spring (32) is arranged outside the connection between the connecting shaft (31) and the spring (32).
2. A bridge expansion joint device according to claim 1, wherein both ends of the protection cylinder (33) are provided with structures protruding inwards, the front section of the connection shaft (31) is provided with a matching connection groove, and the two sections of protrusions of the protection cylinder (33) are installed in the connection groove and can have a certain displacement adaptive amount along with the increase/decrease of the bridge expansion gap.
3. A bridge expansion joint device according to claim 1, wherein the upper cover plate (2) is a complete steel plate, the bottom of the two ends of the upper cover plate (2) is provided with a bump (9), the top of the mounting plate (1) is provided with a limit groove (8), the upper cover plate (2) is installed in the limit groove (8) through the bump (9) at the bottom, and the bump (9) has a certain adaptive displacement in the limit groove (8) along with the expansion and contraction of the bridge expansion gap.
4. A bridge expansion joint device according to claim 1, wherein the upper cover plate (2) is an integrally formed steel plate, and is divided into two parts, and the two parts are respectively installed on the top of the two installation plates (1) through threads, and after the two steel plates are installed on the top of the installation plates (1), a telescopic gap is left between the two steel plates.
5. A bridge expansion joint arrangement according to claim 4, wherein the cutting slot of the upper cover plate (2) is square wave/wavy line shaped, and the expansion slot formed after mounting on the top of the mounting plate (1) is also square wave/wavy line shaped.
6. A bridge expansion joint arrangement according to any one of claims 1 to 5, wherein a connection ring (34) is provided at the end of said connection shaft (31), said spring (32) being detachably connected to said connection shaft (31) via said connection ring (34); the protection barrel (33) is of a detachable structure, and a connecting buckle (35) is arranged outside the protection barrel (33) and used for assembling and fixing the protection barrel.
7. A bridge expansion joint arrangement according to claim 1, further comprising a lower cover plate (4), wherein said lower cover plate (4) is disposed at the bottom of the mounting plate (1), and a drainage hole (5) is disposed on said lower cover plate (4).
8. A bridge expansion joint arrangement according to claim 7, wherein the lower cover plate (4) is of a plate-like configuration having a highest thickness in the middle section and gradually decreasing thickness in the direction of the ends, for draining the falling water from the bottom from both ends.
9. The bridge expansion joint device according to claim 1, 2, 4, 5, 7 or 8, further comprising a fixing wing plate (6), wherein the fixing wing plate (6) is arranged on the outer side of the mounting plate (1), the fixing wing plate (6) is of a plate-shaped structure extending outwards and transversely, and upward and downward steel plates are arranged at the outer tail end of the fixing wing plate (6).
10. A bridge expansion joint arrangement according to claim 1, further comprising a fixing mount (7), wherein said fixing mount (7) is mounted inside the mounting plate (1), and said connecting shaft (31) is connected to the inside of the mounting plate (1) through the fixing mount (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011330487.1A CN112391944A (en) | 2020-11-24 | 2020-11-24 | Bridge expansion joint device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011330487.1A CN112391944A (en) | 2020-11-24 | 2020-11-24 | Bridge expansion joint device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112391944A true CN112391944A (en) | 2021-02-23 |
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ID=74607120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011330487.1A Pending CN112391944A (en) | 2020-11-24 | 2020-11-24 | Bridge expansion joint device |
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| Country | Link |
|---|---|
| CN (1) | CN112391944A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113622286A (en) * | 2021-07-20 | 2021-11-09 | 许尚 | Public road bridge roof beam buffering damping device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005330746A (en) * | 2004-05-21 | 2005-12-02 | Nisshin Steel Co Ltd | Plate spring for expansive joint |
| CN108487053A (en) * | 2018-03-27 | 2018-09-04 | 周汉林 | A kind of Bridge Seismic expansion gap device that elastic dampers are closed automatically |
| CN109972505A (en) * | 2019-04-30 | 2019-07-05 | 东北大学 | A highway bridge expansion joint device |
| CN209468685U (en) * | 2018-11-12 | 2019-10-08 | 湖南达陆基交通工程有限公司 | A bridge expansion joint structure |
| CN211057603U (en) * | 2019-10-31 | 2020-07-21 | 中铁建大桥工程局集团第五工程有限公司 | Expansion joint device |
| CN211340397U (en) * | 2019-11-25 | 2020-08-25 | 王磊 | Anchoring device for bridge expansion joint |
| CN111827106A (en) * | 2020-08-04 | 2020-10-27 | 赵亚蕊 | Anti-resonance device for steel-concrete composite bridge |
-
2020
- 2020-11-24 CN CN202011330487.1A patent/CN112391944A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005330746A (en) * | 2004-05-21 | 2005-12-02 | Nisshin Steel Co Ltd | Plate spring for expansive joint |
| CN108487053A (en) * | 2018-03-27 | 2018-09-04 | 周汉林 | A kind of Bridge Seismic expansion gap device that elastic dampers are closed automatically |
| CN209468685U (en) * | 2018-11-12 | 2019-10-08 | 湖南达陆基交通工程有限公司 | A bridge expansion joint structure |
| CN109972505A (en) * | 2019-04-30 | 2019-07-05 | 东北大学 | A highway bridge expansion joint device |
| CN211057603U (en) * | 2019-10-31 | 2020-07-21 | 中铁建大桥工程局集团第五工程有限公司 | Expansion joint device |
| CN211340397U (en) * | 2019-11-25 | 2020-08-25 | 王磊 | Anchoring device for bridge expansion joint |
| CN111827106A (en) * | 2020-08-04 | 2020-10-27 | 赵亚蕊 | Anti-resonance device for steel-concrete composite bridge |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113622286A (en) * | 2021-07-20 | 2021-11-09 | 许尚 | Public road bridge roof beam buffering damping device |
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