CN210368622U - Seamless expansion joint structure - Google Patents
Seamless expansion joint structure Download PDFInfo
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- CN210368622U CN210368622U CN201920986490.5U CN201920986490U CN210368622U CN 210368622 U CN210368622 U CN 210368622U CN 201920986490 U CN201920986490 U CN 201920986490U CN 210368622 U CN210368622 U CN 210368622U
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Abstract
The utility model discloses a seamless expansion joint structure contains the expansion joint between two adjacent roof beam bodies, every be equipped with the layer of mating formation on the roof beam body, adjacent two mating formation is equipped with between the layer and reserves the notch, still contains and locates apron on the expansion joint, the apron top is equipped with telescopic member, it is filled with the elastoplastomer to reserve the notch intussuseption, the top surface of the elastoplastomer flushes with the top surface on the layer of mating formation. Adopt this device to enable the bridge floor level and smooth seamless, effectively avoid the jump car, improve the driving comfort level, can be waterproof antifouling, beautifully spend highly to can prevent that the elastoplastomer from ftractureing in warping, weaken the impact of driving load to the bridge expansion joint, because of it can be applicable to bigger flexible deformation demand, so be applied to in the bridge of large-and-medium span, the device simple structure, simple to operate effectively improves the efficiency of construction, long service life maintains the cost low.
Description
Technical Field
The utility model relates to a bridge expansion joint technical field, in particular to seamless expansion joint structure.
Background
In order to prevent the requirements of expansion and deformation of the beam body and the bridge deck caused by factors such as temperature change, concrete contraction and creep, live load action and the like and ensure that vehicles smoothly pass through, an expansion joint is usually arranged between two beam ends, and because the expansion device is most easily damaged in the bridge structure and is positioned at a position difficult to maintain, if the type selection and the design of the expansion device are unreasonable, the expansion joint of the bridge is extremely easily damaged, so that the driving safety and the service life of the bridge are influenced.
In the prior art, on a large and medium span bridge, the expansion amount is required to be large, for example, more than 80mm, a profile steel expansion joint is usually adopted, although the profile steel expansion joint can be suitable for large deformation amount, the structure is complex, the service time is long, the road surface is easy to crack and leak, the running smoothness is poor, and the maintenance cost is high; on the small and medium span bridge with small expansion amount, usually seamless expansion joints are adopted, although the bridge has good driving comfort, high road surface attractiveness, convenient cleaning and maintenance, effective water and stain resistance, the bridge can only be applied to small displacement within 40 mm.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome current seamless expansion joint can only satisfy less displacement deflection, and can satisfy the shaped steel expansion joint of great deflection and leak easily, the driving smoothness is poor, maintain the above-mentioned not enough of expense height, provide a seamless expansion joint structure.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a seamless expansion joint structure, contains the expansion joint between two adjacent roof beam bodies, every be equipped with the layer of mating formation on the roof beam body, adjacent two it reserves the notch to lay to be equipped with between the layer of mating formation, still contains and locates apron on the expansion joint, the apron top is equipped with telescopic member, it is filled with the elastoplast body to reserve the notch intussuseption, the top surface of the elastoplast body flushes with the top surface of the layer of mating formation.
By adopting the seamless expansion joint structure of the utility model, an expansion joint is arranged between two adjacent beam bodies, a cover plate is arranged on the expansion joint, the width of the cover plate is larger than the width of the expansion joint, the length of the cover plate is flush with the length of the expansion joint, the width of the reserved groove opening is larger than the width of the cover plate, the cover plate is used for covering the expansion joint, and the elastoplast body which is poured is prevented from entering the expansion joint so as to adapt to larger expansion deformation, an expansion member is arranged above the cover plate and can generate expansion deformation along the longitudinal bridge direction, the elastoplast body is filled in the reserved groove opening, namely the expansion member is embedded in the elastoplast body, the expansion member and the elastoplast body can generate expansion deformation, namely can be compressed or stretched along with the change of the width of the expansion joint, and the expansion member can be close to or far away from the cover plate along with the expansion change, the telescopic member can be selected from metal members with ductility, such as steel members and aluminum members, reserved notches are filled in the telescopic member and the elastic plastic body together, the top surface of the elastic plastic body is higher than the telescopic member, the bridge floor can be flat and seamless, vehicle jumping is avoided, the driving comfort level is improved, water and dirt are effectively prevented, the appearance is attractive, the elastic plastic body can be prevented from cracking in deformation, the impact of driving load on the bridge expansion joint is weakened, and the telescopic member can be applied to larger telescopic deformation demand, so that the telescopic member can be applied to large and medium-span bridges.
Preferably, the telescopic member comprises at least two partition plates, and at least one corrugated plate is connected between every two adjacent partition plates.
Preferably, the horizontal section or the vertical section of the corrugated plate is wavy, the wavy shape includes a sine wave shape and a square wave shape, and the square wave shape includes a trapezoidal wave shape and a rectangular wave shape.
When the corrugated plate is installed, the stretching or compressing deformation direction of the corrugated plate is arranged along the stretching change direction of the stretching seam.
Adopt above-mentioned mode of setting up, make buckled plate and baffle form frame construction, do benefit to right the buckled plate stretches or compresses, the buckled plate can adopt welded connection or bolted connection or buckle connected mode to connect in on the baffle, and telescopic member passes through baffle cooperation buckled plate and forms the modulization, does benefit to quantity and the interval according to the width design baffle of expansion joint, is convenient for carry out standardized design, processing, transportation and installation.
Further preferably, each of the partition plates is disposed along the transverse bridge direction.
That is, all the partition plates are parallel to each other for design and installation, and the corrugated plates connected between two adjacent partition plates may be perpendicularly connected to the partition plates or connected with an inclined angle so as to provide upward telescopic deformation of the longitudinal bridge.
Preferably, at least one stiffening plate is arranged on each partition plate, and each stiffening plate is correspondingly connected with the corrugated plate.
By adopting the arrangement mode, namely, the corrugated plates are connected on the two corresponding stiffening plates between the two adjacent partition plates, the telescopic members are convenient to assemble and replace, the impact of the corrugated plates on the partition plates is reduced, the material-saving replacement cost is saved, the installation is facilitated, and the installation efficiency is improved.
Further preferably, the corrugated plate can be replaced by a corrugated tube.
Further preferably, the distance between two adjacent partition boards is equal.
Is convenient for design and processing.
Preferably, two ends of the telescopic member are respectively connected to two embedded parts, the two embedded parts are respectively connected to two corresponding beam bodies in the reserved groove, and gaps are formed between the cover plate and the two embedded parts in an initial installation state.
Namely, in the initial installation state, gaps are respectively reserved between the two ends of the cover plate and the two embedded parts, so that the expansion joint is adapted to deformation.
Further preferably, each embedded part comprises an overhanging part, and each overhanging part is lapped on the upper surface of the corresponding end of the cover plate.
Can avoid the elastoplast body to get into in the clearance between apron tip and the built-in fitting, effectively make the built-in fitting can be better slide for the apron, do benefit to the deformation of adaptation expansion joint, if necessary, still can set up plastic film in order to do benefit to relative slip, when the length of design portion of encorbelmenting simultaneously, the deflection at expansion joint is fully considered, avoids the tip of apron breaks away from the portion of encorbelmenting.
Preferably, the size of the telescopic member is adapted to the size of the reserve slot.
Adopt above-mentioned mode of setting up, more can prevent effectively that whole expansion joint structure from appearing the fracture under expansion joint deformation or driving impact.
Preferably, the elastoplast body is a TST structure.
The TST structural part is a structural part formed by a mixture of bonding materials and aggregates.
Preferably, the width of the expansion joint is 40mm-240 mm.
To sum up, compare with prior art, the beneficial effects of the utility model are that:
adopt a seamless expansion joint structure, can make the bridge floor level and smooth seamless, avoid the car jump, improve driving comfort level, effective waterproof antifouling, beautifully spend highly to can prevent that the elastoplast body from ftractureing in warping, weaken the impact of driving load to the bridge expansion joint, because of it can be applicable to bigger flexible deformation demand, so can be applied to in the bridge of large and medium span, the device simple structure, simple to operate effectively improves the efficiency of construction, long service life, the maintenance of being convenient for is changed, maintains to become originally low.
Description of the drawings:
fig. 1 is a schematic structural view of a seamless expansion joint structure according to the present invention;
FIG. 2 is a top view of the telescoping member of FIG. 1;
FIG. 3 is another schematic structural view of a corrugated board;
fig. 4 is a plan view showing the structure of the telescopic member in embodiment 2.
The labels in the figure are: 1-beam body, 11-pavement layer, 2-expansion joint, 3-cover plate, 4-elastic plastic body, 5-partition plate, 51-stiffening plate, 6-corrugated plate, 7-corrugated pipe and 8-gap.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. However, it should not be understood that the scope of the above-mentioned subject matter is limited to the following embodiments, and all the technologies realized based on the present invention are within the scope of the present invention.
Example 1
As shown in fig. 1-2, the seamless expansion joint structure of the present invention comprises an expansion joint 2 between two adjacent beams 1, preferably, the width of the expansion joint 2 is 40mm-240mm, each beam body 1 is provided with a pavement layer 11, a reserved notch is arranged between two adjacent pavement layers 11, the expansion joint also comprises a cover plate 3 arranged on the expansion joint 2, a telescopic component is arranged above the cover plate 3, the telescopic direction of the telescopic component is along the longitudinal direction of the bridge, the reserved slot is filled with an elastic plastic body 4, the top surface of the elastic plastic body 4 is flush with the top surface of the pavement layer 11, the elastoplast body 4 is a TST structure, which is a member formed of a mixture of binder and aggregate, preferably, the size adaptation of flexible component the size of reservation notch more can prevent effectively that whole expansion joint structure from appearing the fracture under expansion joint deformation or driving impact.
By adopting the seamless expansion joint structure of the utility model, an expansion joint 2 is arranged between two adjacent beam bodies 1, a cover plate 3 is arranged on the expansion joint 2 and is used for covering the expansion joint 2, the width of the cover plate 3 is larger than the width of the expansion joint 2, the length of the cover plate 3 is flush with the length of the expansion joint 2, the width of the reserved notch is larger than the width of the cover plate 3, the cover plate 3 is used for covering the expansion joint 2, a telescopic component is arranged above the cover plate 3, an elastic plastic body 4 is filled in the reserved notch, namely the telescopic component is positioned in the elastic plastic body, the telescopic component and the elastic plastic body 4 can both expand and contract, namely can be compressed or stretched along with the change of the seam width of the expansion joint 2, and can be close to or far away from the cover plate 3 along with the expansion change of the expansion joint 2 in the width direction, the optional metal component that has the ductility of flexible component, like steel member, aluminium component, and flexible component and elastoplastomer 4 have filled the reservation notch jointly, can make the bridge floor level and smooth seamless, avoid jumping the car, improve driving comfort level, effective waterproof antifouling, it is pleasing to the eye degree high, and can prevent that elastoplastomer 4 from ftractureing in warping, weaken the impact of driving load to bridge expansion joint department, therefore can be applicable to bigger flexible deformation demand and be applied to the bridge of large and medium-span, moreover, the steam generator is simple in structure, high durability and convenient installation, effectively improve the efficiency of construction, long service life, the maintenance of being convenient for is changed, maintain to become originally low.
Preferably, the concrete structure of telescopic member is as shown in fig. 2, the telescopic member includes at least two partition plates 5, this embodiment is exemplified by four partition plates 5, and further preferably, two adjacent partition plates 5 have equal intervals, which is convenient for design and processing, two adjacent partition plates 5 are connected with at least one steel corrugated plate 6 between the partition plates 5, this embodiment is exemplified by four corrugated plates 6, preferably, the corrugated plates 6 and the partition plates 5 are arranged perpendicular to each other, each partition plate 5 is arranged along the transverse bridge direction, that is, all the partition plates 5 are parallel to the width direction of the beam body 1, all the tension and compression directions of the corrugated plates 6 are parallel to the longitudinal bridge direction, so that the corrugated plates 6 can be better adapted to deform along the longitudinal bridge direction.
Specifically, the horizontal section or the vertical section of the corrugated plate 6 is wavy, that is, the wave crests and the wave troughs of the corrugated plate 6 face the upper surface of the beam body 1; or as in the example of fig. 2, the wave crests and the wave troughs of the corrugated plates 6 face the two sides of the beam body 1, the wave shapes include sine wave shapes and square wave shapes, the square wave shapes include trapezoidal wave shapes and rectangular wave shapes, and as shown in fig. 3, the corrugated plates 6 are square wave shapes.
Further preferred, every be equipped with at least one stiffening plate 51 on the baffle 5, every corresponding connection on the stiffening plate 51 the buckled plate 6, promptly the buckled plate 6 can adopt welded connection or bolted connection or buckle connection, and the extensible member passes through 5 cooperation buckled plates of baffle 6 and forms the modulization, does benefit to the quantity and the interval according to the width design baffle of expansion joint 2, is convenient for carry out standardized design, processing, transportation and installation. And meanwhile, the two corresponding stiffening plates 51 between the two adjacent partition plates 5 are connected with one corrugated plate 6, so that the telescopic members are convenient to assemble and replace the corrugated plates 6, the impact of the corrugated plates 6 on the partition plates 5 is reduced, the material replacement cost is saved, and the installation is facilitated on the corrugated plates 6, and the installation efficiency is improved.
Preferably, two ends of the telescopic member are respectively connected to two embedded parts, the two embedded parts are respectively connected to two corresponding beam bodies 1 in the reserved groove, gaps 8 are respectively formed between two ends of the cover plate 3 and the side surfaces of the two embedded parts in an initial installation state, and gaps are formed between the bottom surfaces of all the corrugated plates 6 and the bottom surfaces of all the partition plates 5 positioned in the middle and the cover plate 3 so as to adapt to deformation of the expansion joint 2.
Further preferably, each embedded part comprises an overhanging part, and each overhanging part is lapped on the upper surface of the corresponding end of the cover plate 3.
Get into when can avoiding the elastoplast body 4 to pour in the clearance 8 between apron tip and the built-in fitting, effectively make the built-in fitting can be better slide for apron 3, do benefit to the deformation that adapts to expansion joint 2, if necessary, still can set up plastic film between the portion of encorbelmenting and apron 3 and avoid movable part takes place the friction with bottom plate 1 to do benefit to the relative slip of both, simultaneously when the length of the portion of encorbelmenting of design, fully consider the design deflection at expansion joint 2, avoid the tip of apron 3 breaks away from the portion of encorbelmenting.
Example 2
As shown in fig. 4, the seamless expansion joint structure of the present invention has a structure substantially the same as that of embodiment 1, and the difference is that all the corrugated plates 6 can be replaced by steel corrugated pipes 7, the cross-sectional shape of each corrugated pipe 7 can be circular, oval, or similar to the oval cross-sectional shape shown in fig. 4, the corrugated pipes 7 can be arranged in the direction shown in fig. 4, that is, the pipe wall of each corrugated pipe 7 is connected to the partition plate 5 or connected to the pipe wall of the adjacent corrugated pipe 7 through a connecting member, and the hollow pipe body is pulled and pressed to generate deformation of tension or compression; of course, the corrugated pipes 7 may also be axially arranged along the longitudinal bridge direction, that is, two ends of each section of corrugated pipe 7 are respectively connected to two adjacent partition plates 5, and each partition plate 5 is still provided with a stiffening plate 51 to provide deformation through expansion and contraction between pipe joints.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a seamless expansion joint structure, contains expansion joint (2) between two adjacent roof beam bodies (1), every be equipped with the layer of mating formation (11) on roof beam body (1), adjacent two be equipped with between layer of mating formation (11) and reserve the notch, its characterized in that still contains and locates apron (3) on expansion joint (2), apron (3) top is equipped with flexible component, it moulds body (4) to reserve the notch intussuseption packing, the top surface of the body of moulding bullet (4) flushes with the top surface of the layer of mating formation (11).
2. An expansion joint structure according to claim 1, characterized in that, the expansion member comprises at least two partition plates (5), and at least one corrugated plate (6) is connected between two adjacent partition plates (5).
3. An expansion joint structure according to claim 2, characterized in that each of said partitions (5) is arranged in a transverse bridge direction.
4. The expansion joint structure according to claim 2, characterized in that each partition plate (5) is provided with at least one stiffening plate (51), and each stiffening plate (51) is correspondingly connected with the corrugated plate (6).
5. Expansion joint structure according to claim 2, characterized in that the corrugated plate (6) can be replaced by a corrugated tube (7).
6. An expansion joint structure according to claim 2, characterized in that the distance between two adjacent baffles (5) is equal.
7. The expansion joint structure according to any one of claims 1 to 6, wherein both ends of the expansion member are respectively connected to two embedded parts, the two embedded parts are respectively connected to two corresponding beam bodies (1) in the reserved groove, and in an initial installation state, the cover plate (3) and the two embedded parts are provided with gaps (8).
8. The expansion joint structure according to claim 7, wherein each of said embedded members comprises an overhang portion, each of said overhang portions being lapped on an upper surface of a corresponding end portion of said cover plate (3).
9. An expansion joint structure according to any one of claims 1 to 6, wherein the size of said expansion member is adapted to the size of said pre-cut slot.
10. An expansion joint structure according to any one of claims 1-6, characterized in that the width of the expansion joint (2) is 40mm-240 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920986490.5U CN210368622U (en) | 2019-06-26 | 2019-06-26 | Seamless expansion joint structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920986490.5U CN210368622U (en) | 2019-06-26 | 2019-06-26 | Seamless expansion joint structure |
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| CN210368622U true CN210368622U (en) | 2020-04-21 |
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| CN201920986490.5U Active CN210368622U (en) | 2019-06-26 | 2019-06-26 | Seamless expansion joint structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110172905A (en) * | 2019-06-26 | 2019-08-27 | 中铁二十三局集团建筑设计研究院有限公司 | A kind of gapless expanded joint structure |
| CN112900256A (en) * | 2021-04-13 | 2021-06-04 | 湖南发通路桥集团有限公司 | Construction method of bridge assembly type expansion joint device |
-
2019
- 2019-06-26 CN CN201920986490.5U patent/CN210368622U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110172905A (en) * | 2019-06-26 | 2019-08-27 | 中铁二十三局集团建筑设计研究院有限公司 | A kind of gapless expanded joint structure |
| CN110172905B (en) * | 2019-06-26 | 2024-04-05 | 中铁二十三局集团建筑设计研究院有限公司 | Seamless expansion joint structure |
| CN112900256A (en) * | 2021-04-13 | 2021-06-04 | 湖南发通路桥集团有限公司 | Construction method of bridge assembly type expansion joint device |
| CN112900256B (en) * | 2021-04-13 | 2022-06-07 | 湖南发通路桥集团有限公司 | Construction method of bridge assembly type expansion joint device |
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