CN218147604U - Continuous reinforced concrete composite road surface expansion device - Google Patents
Continuous reinforced concrete composite road surface expansion device Download PDFInfo
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- CN218147604U CN218147604U CN202221623724.8U CN202221623724U CN218147604U CN 218147604 U CN218147604 U CN 218147604U CN 202221623724 U CN202221623724 U CN 202221623724U CN 218147604 U CN218147604 U CN 218147604U
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Abstract
The utility model relates to a continuous reinforced concrete composite pavement expansion device, which comprises a comb-shaped plate, an anchoring plate, a dustproof limiting device, a shock absorption support, a joint compound, an expansion plate and a rubber waterstop; the comb-shaped plates are arranged at two sides of the expansion joint in a bayonet staggered meshing manner, the anchoring plates are arranged at the lower parts of the comb-shaped plates, the dustproof limiting device is embedded in the anchoring plates and positioned right above the expansion joint, and the upper ends of the dustproof limiting devices are connected with the comb-shaped plates; the shock absorption support is assembled inside the dustproof limiting device; the rubber waterstop is arranged at the top of the expansion joint; filling the joint filler and the expansion plate into the expansion joint below the rubber water stop from top to bottom in sequence; the rubber waterstop, the joint filling material and the expansion plate can deform along with the expansion and contraction of the expansion joint. The utility model discloses having avoided the bolt not hard up, having avoidd and run through the seam perpendicularly, effectively having strengthened telescoping device's waterproof performance and damping performance, guaranteed the power effect of biography of concrete slab interblock simultaneously.
Description
Technical Field
The utility model belongs to the technical field of road engineering, concretely relates to continuous reinforced concrete combined type road surface telescoping device.
Background
In order to meet the increasing traffic volume of roads and the driving requirements of large traffic volume such as heavy load and overload, the composite pavement is widely popularized and applied in recent years. Different from the common concrete pavement which needs to be provided with a contraction joint or an expansion joint every 5-10 m, the continuous reinforced concrete composite pavement only needs to be provided with a telescopic device at the end part to release the stress accumulated in the concrete pavement in a longer distance. The common continuous reinforced concrete composite pavement expansion device adopts a bolt comb tooth type or a fur tightening type expansion device provided with a rubber water stop belt. The bolt comb-tooth type expansion device with the bolt can cause the bolt to be loosened under the action of vehicle load, on one hand, the normal use of the expansion device is influenced, and on the other hand, the loosened bolt can puncture a tire to endanger the driving safety. Due to the vertical penetrating joint from the asphalt surface layer to the continuous reinforcement CRC plate, the woollen expansion device provided with the rubber water stop can generate uncomfortable jumping feeling when a vehicle passes through; secondly, the steel fiber concrete on two sides of the deformed steel plate is easy to crack and break under the long-term action of vehicle load, and is difficult to maintain; meanwhile, the V-shaped rubber water stop is easy to puncture, and the problems of insufficient waterproof capability and base layer water damage are also caused, so that frequent maintenance is required. Meanwhile, the two telescopic devices are not provided with dowel bars, so that the travelling load cannot be transmitted between the plates and the slab staggering cannot be prevented. Therefore, it is necessary to develop a continuous reinforced concrete composite pavement expansion device which overcomes the above disadvantages, has longer service life and is stressed more uniformly.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in providing a continuous reinforced concrete combined type road surface telescoping device to the not enough of above-mentioned prior art existence, has avoided the bolt not hard up, has avoidd and has run through the seam perpendicularly, has reduced the uncomfortable of the car of traveling and has felt and the broken possibility of steel fibre concrete, simultaneously, has effectively strengthened telescoping device's waterproof performance and damping performance, guarantees the power transmission effect of concrete slab interblock simultaneously.
The utility model discloses a solve the technical scheme that technical problem that the aforesaid provided adopted and be:
a continuous reinforced concrete composite pavement expansion device is transversely and completely arranged at an expansion joint of a continuous reinforced concrete composite pavement, and comprises a comb-shaped plate, an anchoring plate, a dustproof limiting device, a damping support, joint filling materials, an expansion plate and a rubber water stop; the comb-shaped plates are arranged on two sides of the expansion joint in a bayonet staggered meshing mode, the anchoring plates are arranged on the lower portions of the comb-shaped plates, the dustproof limiting device is embedded in the anchoring plates and located right above the expansion joint, and the upper ends of the dustproof limiting devices are connected with the comb-shaped plates; the shock absorption support is assembled in the dustproof limiting device and used for supporting the comb-shaped plates on two sides; the rubber waterstop is arranged at the top of the expansion joint and is attached to the dustproof limiting device for installation; the joint filling material and the expansion plate are sequentially filled in the expansion joint below the rubber water stop belt from top to bottom; the rubber waterstop, the joint filling material and the expansion plate can deform along with the expansion of the expansion joint; the telescopic device also comprises a dowel bar and a dowel bar sleeve which are longitudinally arranged, and the dowel bar sleeve is arranged on a concrete layer at one side of the expansion joint; inside the one end of dowel steel inserted, the other end of dowel steel extended to the concrete layer of expansion joint opposite side along the driving direction.
In the above scheme, dustproof stop device is including setting up in the half frame structure of expansion joint both sides respectively, and the roof of two half frame structures overlaps from top to bottom and sets up, sets up the clearance that is the same width with the expansion joint between the bottom plate of two half frame structures, the bottom plate tip sets up the waterstop draw-in groove, the both ends of rubber waterstop are fixed in the waterstop draw-in groove.
In the above scheme, dustproof stop device still includes the spacing cross slab parallel with the curb plate of half frame structure, shock-absorbing support assembles between curb plate and spacing cross slab.
In the above scheme, the damping support adopts a high-damping and noise-reducing rubber strip, and the width of the damping support is not less than 6cm.
In the scheme, the comb-shaped plate, the dustproof limiting device and the anchoring plate are integrally formed through welding after being positioned and installed on site.
In the scheme, the continuous reinforced concrete composite pavement comprises a concrete layer as a base layer and an asphalt surface layer as a surface layer, and the upper parts of the concrete layer and the asphalt surface layer are replaced by steel fiber concrete layers at the expansion joint.
In the above scheme, the telescopic device further comprises top embedded transverse steel bars, bottom embedded transverse steel bars and embedded annular steel bars which are symmetrically arranged about the expansion joint; the upper part of the embedded annular steel bar is positioned in the steel fiber concrete layer, and the lower part of the embedded annular steel bar is positioned in the concrete layer; the top embedded transverse steel bar is positioned in the steel fiber concrete layer and penetrates through the anchoring plate and the embedded annular steel bar; the bottom embedded transverse steel bar is positioned in the concrete layer and penetrates through the embedded annular steel bar.
In the scheme, the joint filling material is a silicone type joint filling material, a polyurethane type joint filling material or a foamed rubber strip.
In the above scheme, the expansion plate is a rubber plate or an asphalt fiberboard.
In the above scheme, the telescopic width range of the telescopic device is 2.5 cm-3.5 cm.
The beneficial effects of the utility model reside in that:
1. comb plate, anchor plate, dustproof stop device welding form wholly, have avoided the bolt not hard up to driving safety's adverse effect and have reduced the work and the expense of later stage maintenance.
2. Avoids vertical through joints, and reduces the uncomfortable feeling of bumping at the bridgehead and the possibility of breaking steel fiber concrete.
3. The rubber waterstop, the joint filling material and the expansion plate form a triple waterproof system, and water seepage of a road surface can be effectively prevented.
4. The dowel bar that vertically sets up has strengthened the biography power effect between the plate, prevents that the wrong platform from taking place.
5. The upper part of the expansion joint is provided with a dustproof limiting device which can prevent sundries from falling into the expansion joint; damping support is installed simultaneously to the dust keeper both sides, forms firm support to the comb plate of both sides, makes whole expansion joint damping device atress more even, warp more harmoniously, reduces the vibrations that the driving load caused, and the driving is more comfortable. The dustproof limiting device can prevent sundries from falling into the gap, fix the positions of the damping support and the rubber water stop and realize three functions by utilizing limited space and devices.
6. The symmetry sets up in the pre-buried transverse reinforcement in upper portion, the pre-buried transverse reinforcement in lower part, pre-buried annular reinforcing bar of expansion joint both sides, and transverse reinforcement, annular reinforcing bar and anchor plate form overall structure, can strengthen telescoping device's wholeness.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
FIG. 1 is a sectional view of the continuous reinforced concrete composite pavement expansion device of the present invention;
FIG. 2 is a plan view of the continuous reinforced concrete composite roadway retractor of FIG. 1;
fig. 3 is a structural view of the dustproof stopper of the continuous reinforced concrete composite pavement expansion device shown in fig. 1.
In the figure: 10. a concrete layer; 20. an asphalt surface layer; 301. a comb plate; 302. an anchor plate; 303. a dustproof limiting device; 3031. a top plate; 3032. a base plate; 3033. a side plate; 3034. a limiting diaphragm plate; 3035. a waterstop clamping groove; 304. a shock-absorbing support; 305. filling a gap; 306. a retractable plate; 307. embedding a transverse steel bar at the top; 308. embedding transverse steel bars at the bottom; 309. pre-burying annular steel bars; 310. a dowel bar; 311. A transfer rod sleeve; 312. a rubber waterstop; 40. a steel fiber concrete layer.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1-3, for the utility model provides a continuous reinforced concrete combined type pavement telescoping device, continuous reinforced concrete combined type pavement includes as the concrete layer 10 of basic unit and as the pitch surface course 20 of surface course, and at expansion joint department, concrete layer 10 and pitch surface course 20 upper portion are replaced by steel fiber concrete layer 40. The steel fiber concrete layer 40 has the strength of C50 and can be used for enhancing the durability of the expansion device at the expansion joint.
The expansion device is transversely arranged at an expansion joint of the continuous reinforced concrete composite pavement in a through manner and comprises a comb-shaped plate 301, an anchoring plate 302, a dustproof limiting device 303, a shock absorption support 304, a joint filling material 305, an expansion plate 306 and a rubber water stop 312. The comb-shaped plates 301 are disposed at two sides of the expansion joint in a bayonet staggered engagement manner, so as to facilitate expansion and contraction, as shown in fig. 2. The anchoring plate 302 is arranged at the lower part of the comb-shaped plate 301, the dustproof limiting device 303 is embedded in the anchoring plate 302 and is positioned right above the expansion joint, and the upper end of the dustproof limiting device 303 is connected with the comb-shaped plate 301. The shock absorption support 304 is assembled inside the dustproof limiting device 303 and is used for supporting the comb-shaped plates 301 on two sides, and the shock absorption support can synchronously deform when bearing the load of a travelling crane, so that the shock absorption effect is enhanced; and limits the comb-shaped plate 301 to support the comb-shaped plate 301 to be horizontally retractable and vertically immovable. The rubber water stop 312 is arranged at the top of the expansion joint and is attached to the dustproof limiting device 303; the joint filling material 305 and the expansion plate 306 are sequentially filled in the expansion joint below the rubber water stop belt 312 from top to bottom, and the rubber water stop belt 312, the joint filling material 305 and the expansion plate 306 form a triple waterproof system, so that the road surface water flow can be effectively prevented from seeping downwards. The rubber water stop 312, the joint filling material 305 and the expansion plate 306 can deform along with the expansion and contraction of the expansion joint. The telescopic device also comprises a dowel bar 310 and a dowel bar sleeve 311 which are longitudinally arranged, wherein the dowel bar sleeve 311 is arranged on the concrete layer 10 at one side of the expansion joint; inside the one end of dowel bar 310 inserted, the other end of dowel bar 310 extended to the concrete layer 10 of expansion joint opposite side along the driving direction, guaranteed the load transmission between the slab.
Further optimize, in this embodiment, the dustproof limiting device 303 includes half frame structures respectively disposed at two sides of the expansion joint, as shown in fig. 3, a top plate 3031 of the two half frame structures is overlapped up and down, a gap with the same width as the expansion joint is disposed between bottom plates 3032 of the two half frame structures, a waterstop clamping groove 3035 is disposed at an end of each bottom plate 3032, and two ends of the rubber waterstop 312 are fixed in the waterstop clamping groove 3035. The top plate 3031 of the dustproof limiting device 303 is overlapped up and down, so that sundries and dust can be prevented from falling into the expansion joint damping device, and the normal expansion and contraction of the expansion joint damping device are not influenced. The bottom plate 3032 of the dustproof device 303 is provided with a rubber water stop 312, so that the road surface water flow infiltration and sundries entering can be effectively prevented.
Further preferably, in this embodiment, the top plates 3031 of the two half frame structures can move relatively in the traveling direction.
Further preferably, in this embodiment, the dustproof limiting device 303 further includes a limiting diaphragm plate 3034 parallel to the side plate 3033 of the half-frame structure, and the shock absorbing support 304 is assembled between the side plate 3033 and the limiting diaphragm plate 3034. The dustproof limiting device 303 fixes the position of the shock absorption support 304 through the side wall of the dustproof limiting device 303 and a limiting diaphragm plate 3034 welded in advance.
Further preferably, in this embodiment, the damping support 304 is a high damping and noise reducing rubber strip, the width of which is not less than 6cm, and the length of which is generally 1m per block.
Further preferably, in this embodiment, the comb-shaped plate 301, the dust-proof limiting device 303 and the anchor plate 302 are welded to form a whole after being positioned and installed on site.
Further, in this embodiment, the telescopic device further includes top embedded transverse bars 307, bottom embedded transverse bars 308, and embedded annular bars 309, which are symmetrically arranged about the expansion joint; the upper part of the embedded annular steel bar 309 is positioned in the steel fiber concrete layer 40, and the lower part is positioned in the concrete layer 10; the top embedded transverse steel bar 307 is positioned in the steel fiber concrete layer 40 and penetrates through the anchoring plate 302 and the embedded annular steel bar 309; the bottom embedded transverse steel bar 308 is positioned in the concrete layer 10 and penetrates through the embedded annular steel bar 309.
Further preferably, in this embodiment, the joint compound 305 is a silicone joint compound 305, a polyurethane joint compound 305, or a foamed rubber strip.
Further preferably, in this embodiment, the retractable plate 306 is a rubber plate or an asphalt fiber plate.
Further preferably, in this embodiment, the retractable width of the retractable device ranges from 2.5cm to 3.5cm.
Further preferably, in this embodiment, the anchor plates 302 are arranged one by one at intervals of 1-1.5 m.
Further preferably, in this embodiment, the length of the comb plate 301 is generally 1 to 1.5m, and the length of the dust-proof limiting device 303 is generally 1 to 1.5m as long as the length of the comb plate 301.
Further optimization, in the embodiment, one annular steel bar is arranged at intervals of 1-1.5 m.
Further optimize, in this embodiment, dowel bar 310 uses plain round steel bar, and the diameter is generally 22 ~ 28mm, can select according to the engineering actual conditions.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the scope of the present invention, and these forms are all within the protection scope of the present invention.
Claims (10)
1. A continuous reinforced concrete composite pavement expansion device is transversely and completely arranged at an expansion joint of a continuous reinforced concrete composite pavement and is characterized in that the expansion device comprises a comb-shaped plate, an anchoring plate, a dustproof limiting device, a damping support, a joint filler, an expansion plate and a rubber waterstop; the comb-shaped plates are arranged on two sides of the expansion joint in a bayonet staggered meshing manner, the anchoring plates are arranged on the lower parts of the comb-shaped plates, the dustproof limiting device is embedded in the anchoring plates and positioned right above the expansion joint, and the upper ends of the dustproof limiting devices are connected with the comb-shaped plates; the shock absorption support is assembled in the dustproof limiting device and used for supporting the comb-shaped plates on two sides; the rubber water stop is arranged at the top of the expansion joint and is attached to the dustproof limiting device; the joint filling material and the expansion plate are sequentially filled in the expansion joint below the rubber water stop belt from top to bottom; the rubber waterstop, the joint filling material and the expansion plate can deform along with the expansion of the expansion joint; the telescopic device also comprises a dowel bar and a dowel bar sleeve which are longitudinally arranged, and the dowel bar sleeve is arranged on a concrete layer at one side of the expansion joint; inside the one end of dowel steel inserted, the other end of dowel steel extended to the concrete layer of expansion joint opposite side along the driving direction.
2. The continuous reinforced concrete composite pavement expansion device of claim 1, wherein the dustproof limiting device comprises half frame structures respectively arranged at two sides of the expansion joint, top plates of the two half frame structures are arranged in an up-and-down overlapping manner, a gap with the same width as the expansion joint is arranged between bottom plates of the two half frame structures, the end parts of the bottom plates are provided with water stop groove, and two ends of the rubber water stop are fixed in the water stop groove.
3. The continuous reinforced concrete composite pavement expansion device of claim 1, wherein the dustproof limiting device further comprises a limiting diaphragm plate parallel to the side plate of the half-frame structure, and the shock-absorbing support is assembled between the side plate and the limiting diaphragm plate.
4. The continuous reinforced concrete composite pavement expansion device of claim 1, wherein the damping support is a high-damping and noise-reducing rubber strip with a width of not less than 6cm.
5. The continuous reinforced concrete composite pavement retractor device of claim 1, wherein the comb-shaped plate, the dust-proof limiting device and the anchoring plate are welded to form a whole after being positioned and installed on site.
6. The continuous reinforced concrete composite pavement extending and retracting device of claim 1, wherein the continuous reinforced concrete composite pavement comprises a concrete layer as a base layer and an asphalt surface layer as a surface layer, and the concrete layer and the upper part of the asphalt surface layer are replaced by steel fiber concrete layers at the expansion joint.
7. The continuous reinforced concrete composite pavement expansion device of claim 6, further comprising top pre-embedded transverse steel bars, bottom pre-embedded transverse steel bars and pre-embedded annular steel bars symmetrically arranged about the expansion joint; the upper part of the embedded annular steel bar is positioned in the steel fiber concrete layer, and the lower part of the embedded annular steel bar is positioned in the concrete layer; the top embedded transverse steel bar is positioned in the steel fiber concrete layer and penetrates through the anchoring plate and the embedded annular steel bar; the bottom embedded transverse steel bar is positioned in the concrete layer and penetrates through the embedded annular steel bar.
8. A continuous reinforced concrete composite pavement expansion device as claimed in claim 1, wherein the joint compound is silicone, polyurethane or foam rubber strip.
9. The continuous reinforced concrete composite pavement retractor device of claim 1, wherein the retractable plate is a rubber plate or an asphalt fiber plate.
10. The continuous reinforced concrete composite pavement expansion device of claim 1, wherein the expansion device has an expansion width in a range of 2.5cm to 3.5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221623724.8U CN218147604U (en) | 2022-06-27 | 2022-06-27 | Continuous reinforced concrete composite road surface expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221623724.8U CN218147604U (en) | 2022-06-27 | 2022-06-27 | Continuous reinforced concrete composite road surface expansion device |
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| Publication Number | Publication Date |
|---|---|
| CN218147604U true CN218147604U (en) | 2022-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221623724.8U Active CN218147604U (en) | 2022-06-27 | 2022-06-27 | Continuous reinforced concrete composite road surface expansion device |
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| CN (1) | CN218147604U (en) |
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- 2022-06-27 CN CN202221623724.8U patent/CN218147604U/en active Active
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