CN201817761U - Sliding type continuous reinforced concrete pavement and combined pavement - Google Patents
Sliding type continuous reinforced concrete pavement and combined pavement Download PDFInfo
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- CN201817761U CN201817761U CN2010205862079U CN201020586207U CN201817761U CN 201817761 U CN201817761 U CN 201817761U CN 2010205862079 U CN2010205862079 U CN 2010205862079U CN 201020586207 U CN201020586207 U CN 201020586207U CN 201817761 U CN201817761 U CN 201817761U
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Abstract
The utility model discloses a sliding type continuous reinforced concrete pavement and a combined pavement. The sliding type continuous reinforced concrete pavement comprises a base layer, wherein a sliding type continuous reinforced concrete pavement surface course formed through concrete casting is laid on the base layer; continuous mesh reinforcement and erection bars are embedded in concrete; the continuous mesh reinforcement is banded on the erection bars; expanded joints are arranged on two sides of the continuous mesh reinforcement; and a drag reduction layer is arranged between the base layer and the sliding type continuous reinforced concrete pavement surface course. Since the drag reduction layer is arranged between the base layer and the surface course of the sliding type continuous reinforced concrete pavement, limited sliding in the horizontal direction between the base layer and the sliding type continuous reinforced concrete pavement surface course is realized; and expansion seams instead of anchor piers are arranged on two sides of the continuous mesh reinforcement, and have regular intervals and small widths, so that the service life of the pavement can be prolonged.
Description
Technical field
The utility model relates to the road structure technology, relates in particular to a kind of sliding continuous reinforced concrete pavement and composite pavement.
Background technology
The reinforced concrete pavement be a kind of in the concrete surface laminate configuration in length and breadth to the concrete road surface structure that seam is set of reinforcing bar (or steel wire) net, steel mesh reinforcement wherein can be controlled the amount of opening in slit, crack.Wherein, the reinforcing bar of steel mesh reinforcement generally adopts the reinforcing bar of minor diameter, in length and breadth can be identical or different to the diameter of reinforcing bar, and the minimum spacing between the reinforcing bar can be the twice of the maximum particle diameter of gathering materials; The lap length of reinforcing bar can be more than 24 times of bar diameter.Reinforcing bar is usually located under the concrete slab end face in 1/3～1/2 thickness range, and reinforcing bar center, the outside can be 10～15cm to the distance of seam or free margins, and minimum cover of reinforcement is preferably and is not less than 5cm; The kerf spacing that contracts of armored concrete slab (being that plate is long) is generally 10～20m, and maximum should not surpass 30m, generally need establish dowel bar in the seam that contracts of reinforced concrete pavement.
Fig. 1 is the longitudinally cutting side-looking structural representation of existing continuous reinforced concrete pavement, as shown in Figure 1, in continuous reinforced concrete pavement, along vertically disposing continuous steel mesh reinforcement in the concrete surface laminate on the basic unit 1 11, the two ends of longitudinal reinforcement 12 are fixed on the anchoring pier 13 in the steel mesh reinforcement, except with other junction, road surface or contiguous structure near expansion joint (E.J.) is being set, and look construction and need be provided with outside the constuction joint, generally do not establish transverse joint.Continuous reinforced concrete pavement structure changes under the internal stress effect that causes in temperature and humidity may produce transverse crack.In the existing continuous reinforced concrete pavement standard, the spacing of the transverse crack of permission is generally 1.0～3.0m, and the mean breadth in the slit of transverse crack is generally 0.2～0.5mm; Guarantee that the intact required quantity of reinforcement of transverse crack is 0.6%～0.8% of a concrete slab basal area.The buried depth of reinforcing bar can be under end face in 1/3～1/2 thickness range, and the lap length of reinforcing bar can be for more than the 50cm or be 30 times of bar diameter, and all overlap joints stagger; The reinforcement ratio of transverse reinforcement is about 1/8～1/5 of longitudinal reinforcement, adopts indented bars to reinforcing bar in length and breadth, to guarantee having enough bond stresss between concrete and the reinforcing bar; Casting process need be provided with constuction joint when interrupting, and constuction joint adopts the flush joint pattern, and is the pull bar enhancing of 1m with length.Wherein, the diameter of pull bar can be identical with longitudinal reinforcement with spacing, reinforces into continuous integral body with the concrete plate that guarantees the constuction joint both sides; In the end of concrete plate, the end of the bridge junction, with other road surface landing edge place expansion joint (E.J.) is set, so that concrete expansion is allowed some leeway.
In the existing continuous reinforced concrete pavement, adopt fixedly longitudinal reinforcement of anchoring pier, the crack appears in road surface easily, and fracture interval is irregular, and the crack is wide, influences the application life on road surface.
The utility model content
The utility model provides a kind of sliding continuous reinforced concrete pavement and composite pavement, and it is irregular to solve existing continuous reinforced concrete pavement fracture interval, the problem that the crack is wide.
The utility model provides a kind of sliding continuous reinforced concrete pavement, comprising: basic unit, wherein:
Be equipped with the sliding continuous reinforced concrete pavement surface layer that forms by concreting in the described basic unit; Be embedded with continuity reinforcement(bar) net and handling reinforcement in the described concrete, the colligation of described continuity reinforcement(bar) net is on described handling reinforcement, and the both sides of described continuity reinforcement(bar) net are provided with the shrinkage joint;
Be provided with the drag reduction layer between described basic unit and the described sliding continuous reinforced concrete pavement surface layer.
Wherein, individual layer arrangement of reinforcement steel mesh reinforcement or double-deck arrangement of reinforcement steel mesh reinforcement are elected in described continuity reinforcement(bar) network optimization as.
Further, described continuity reinforcement(bar) net comprises longitudinal reinforcement and transverse reinforcement, and described transverse reinforcement becomes set angle to arrange with respect to described longitudinal reinforcement.
Described drag reduction layer is preferably plastic film layers, composite earthwork rete or composite plastic woven layer of cloth.
The utility model also provides a kind of composite pavement, wherein, comprising: the arbitrary described sliding continuous reinforced concrete pavement that the utility model provides;
Be equipped with tack coat on the described sliding continuous reinforced concrete pavement;
Be equipped with asphalt concrete pavement on the described tack coat.
Sliding continuous reinforced concrete pavement and composite pavement that the utility model provides, between basic unit and sliding continuous reinforced concrete pavement surface layer, be provided with the drag reduction layer, level between realization basic unit and the sliding continuous reinforced concrete pavement surface layer is to limited slip, continuity reinforcement(bar) net both sides do not need to be provided with the anchoring pier, and change the shrinkage joint of retractable into, can reduce the generation in crack, and the fracture interval rule that produces, width is little, thereby improves the application life on road surface.
Description of drawings
Fig. 1 is the longitudinally cutting side-looking structural representation of existing continuous reinforced concrete pavement;
The local longitudinally cutting side-looking structural representation of the sliding continuous reinforced concrete pavement that Fig. 2 provides for the utility model embodiment one;
The fragmentary top TV structure schematic diagram of the sliding continuous reinforced concrete pavement that Fig. 3 provides for the utility model embodiment two;
The local longitudinally cutting side-looking structural representation of the composite pavement that Fig. 4 provides for the utility model embodiment three.
Main Reference numeral:
1-basic unit; 11-concrete surface laminate; The 12-longitudinal reinforcement;
13-anchoring pier; The sliding continuous reinforcement of 2-mixes the 21-concrete;
Coagulate the soil surface surface layer;
22-continuity reinforcement(bar) net; The 221-longitudinal reinforcement; The 222-transverse reinforcement;
The 23-handling reinforcement; 3-drag reduction layer; The 4-shrinkage joint;
The sliding continuous reinforcement 6-of 5-tack coat; The 7-asphalt concrete pavement.
The rigid pavement;
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment one
The local longitudinally cutting side-looking structural representation of the sliding continuous reinforced concrete pavement that Fig. 2 provides for the utility model embodiment one, as shown in Figure 2, this sliding continuous reinforced concrete pavement, comprise: basic unit 1 is equipped with in the described basic unit 1 by concrete 21 and builds the sliding continuous reinforced concrete pavement surface layer 2 that forms; Be embedded with continuity reinforcement(bar) net 22 and handling reinforcement 23 in the described concrete 21, the both sides of described continuity reinforcement(bar) net 22 are provided with shrinkage joint 4; Wherein, in work progress, handling reinforcement 23 can directly be erected in the basic unit 1, and the mode that does not adopt borehole anchorage to set up.There is joint sealing material at the shrinkage joint 4 of the both sides of described continuity reinforcement(bar) net 22 at sliding continuous reinforced concrete pavement surface layer two ends longitudinally in the shrinkage joint, but free shrink.
Be provided with drag reduction layer 3 between basic unit 1 and the described sliding continuous reinforced concrete pavement surface layer 2;
In the sliding continuous reinforced concrete pavement of present embodiment, between basic unit and sliding continuous reinforced concrete pavement surface layer, be provided with the drag reduction layer, level between realization basic unit and the sliding continuous reinforced concrete pavement surface layer is to limited slip, continuity reinforcement(bar) net both sides do not need to be provided with the anchoring pier, and change the shrinkage joint of retractable into, can reduce the generation in crack, and the fracture interval rule that produces, width is little, thereby improves the application life on road surface.
Embodiment two
The fragmentary top TV structure schematic diagram of the sliding continuous reinforced concrete pavement that Fig. 3 provides for the utility model embodiment two, on the basis of embodiment one, continuity reinforcement(bar) net 22 can be individual layer arrangement of reinforcement steel mesh reinforcement or double-deck arrangement of reinforcement steel mesh reinforcement.As shown in Figure 3, continuity reinforcement(bar) net 22 can comprise longitudinal reinforcement 221 and transverse reinforcement 222, and described transverse reinforcement 222 can become set angle to arrange with respect to described longitudinal reinforcement 221.In the road structure being vertically with the direction of traffic, serves as horizontal with the width of roadway direction.
Though sliding continuous reinforced concrete pavement ftractures under driving vertical load and long panel buckling deformation effect easily, but cracking is closeable active fissure under the constraint of continuity reinforcement(bar) net, the seam in crack is wide can be effectively controlled, control the crack seam wide≤1.0mm, moisture not leakiness enters the crack, has prevented the frost heave breakage.
Further, the continuous length of sliding continuous reinforced concrete pavement surface layer is preferably 100m to 900m, concrete length can be determined according to the friction factor of basic unit and continuous reinforcement concrete pavement, be generally be interrupted the reinforced concrete pavement plate long more than 10 times, help realizing nothing but the load crack, before handing over, do not ftracture to guarantee sliding continuous reinforced concrete pavement surface layer.Wherein, can determine the continuous length of sliding continuous reinforced concrete pavement surface layer according to the structure spacing at initial two ends, can calculate according to the continuous length of sliding continuous reinforced concrete pavement surface layer then and determine at the bottom of the plate for example 0.5-1.5 of coefficient of friction, according to the drag reduction material of laying at the bottom of the coefficient of friction option board at the bottom of this plate.Particularly, the drag reduction layer can be chosen for plastic film layers, composite earthwork rete or composite plastic woven layer of cloth etc., and the material that the drag reduction layer is selected is to have the material that reduces the frictional resistance effect.
Particularly, sliding continuous reinforced concrete pavement can be according to preventing that the crack from producing the concrete bias voltage intensity of squeezing broken formation zone of fracture and determining concrete resistance to compression design strength grade, and bias voltage intensity is 1.3-1.7 times of general positive compressive strength.Therefore, in low temperature season making when construction in spring and autumn, if cement concrete can be used in concrete mix temperature≤22 ℃; In hot day in summer during making, temperature is higher, then can use total volume to be not more than 30% fly ash concrete, and to reduce heat of hydration temperature peak value, control cooling is thereafter ftractureed.In the process of road surfacing, preferably, three meters vertical planeness≤4.0mm of ruler of last basic unit; Horizontal planeness≤5mm, and do not have hole, nothing arch bag, do not influence the sliding deformation of top panel.By improving Base Smoothness and the drag reduction layer being set, can shrink the high tensile stress cracking that causes to the temperature difference and wet difference with limited slip emission levels.A kind of road surface between the armored concrete road surface of the indefinite length of being interrupted reinforced concrete pavement and ground anchor beam anchoring.In addition, can be according to frictional resistance at the bottom of maximum day and night temperature, annual range of temperature and the plate of the concrete environment of laying sliding continuous reinforced concrete pavement, calculate the longitudinal sliding motion displacement that sliding continuous reinforced concrete pavement allows, expansion joint (E.J.) is set, isolates seam or shrinkage joint according to the longitudinal sliding motion displacement.For example:, during the maximum longitudinal sliding motion displacement of annual range of temperature≤10mm, the expansion joint (E.J.) of expansion joint (E.J.) plate width 25-30mm is set or isolates seam as one-sided maximum round the clock longitudinal sliding motion displacement≤5mm.As one-sided maximum round the clock longitudinal sliding motion displacement＞5mm, during the maximum longitudinal sliding motion displacement of annual range of temperature＞10mm, the suitable bridge expanssion joint that the telescopic displacement amount meets the demands is set.
Preferably application scenarios is as follows for sliding continuous reinforced concrete pavement among the utility model embodiment.Scene one, be applied at a high speed, the runway and the fast panel of Class I highway, because the gradient≤2% of the horizontal wall inscription of Class I highway at a high speed,, the gradient of longitudinal gradient≤5%, the about 500m of minimum negotiable radius, sliding continuous reinforced concrete pavement is applied on runway and the fast, and adopt wide hardened verge and the road kerb of about 2.5m to obligate, can not produce lateral sliding and shift out.Scene two, be applied to the runway panel of Class II highway,, also can not produce lateral sliding and shift out because Class II highway has the hard and soft two kinds of constraints of hardened verge, road kerb and Soft Shoulder.And sliding continuous reinforced concrete pavement be vertically arranged with the swell-shrinking deformation that discharges by expansion joint (E.J.) and shrinkage joint, and can not produce permanent slide displacement.
In the sliding continuous reinforced concrete pavement of present embodiment, between basic unit and sliding continuous reinforced concrete pavement surface layer, be provided with the drag reduction layer, level between realization basic unit and the sliding continuous reinforced concrete pavement surface layer is to limited slip, continuity reinforcement(bar) net both sides do not need to be provided with the anchoring pier, and change the shrinkage joint of retractable into, can reduce the generation in crack, and the fracture interval rule that produces, width is little, thereby improves the application life on road surface.
Embodiment three
The local longitudinally cutting side-looking structural representation of the composite pavement that Fig. 4 provides for the utility model embodiment three, as shown in Figure 4, this composite pavement comprises: the sliding continuous reinforced concrete pavement 5 of any one structure that provides among the utility model the foregoing description one, the embodiment two; Be equipped with tack coat 6 on the sliding continuous reinforced concrete pavement 5; Be equipped with asphalt concrete pavement 7 on the tack coat 6.
In the present embodiment composite pavement, between basic unit and sliding continuous reinforced concrete pavement surface layer, be provided with the drag reduction layer, level between realization basic unit and the sliding continuous reinforced concrete pavement surface layer is to limited slip, continuity reinforcement(bar) net both sides do not need to be provided with the anchoring pier, and change the shrinkage joint of retractable into, can reduce the generation in crack, and the fracture interval rule that produces, width is little, thereby improves the application life on road surface.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (5)
1. sliding continuous reinforced concrete pavement, comprising: basic unit is characterized in that:
Be equipped with the sliding continuous reinforced concrete pavement surface layer that forms by concreting in the described basic unit; Be embedded with continuity reinforcement(bar) net and handling reinforcement in the described concrete, the colligation of described continuity reinforcement(bar) net is on described handling reinforcement, and the both sides of described continuity reinforcement(bar) net are provided with the shrinkage joint;
Be provided with the drag reduction layer between described basic unit and the described sliding continuous reinforced concrete pavement surface layer.
2. sliding continuous reinforced concrete pavement according to claim 1 is characterized in that, described continuity reinforcement(bar) net is individual layer arrangement of reinforcement steel mesh reinforcement or double-deck arrangement of reinforcement steel mesh reinforcement.
3. sliding continuous reinforced concrete pavement according to claim 2 is characterized in that, described continuity reinforcement(bar) net comprises longitudinal reinforcement and transverse reinforcement, and described transverse reinforcement becomes set angle to arrange with respect to described longitudinal reinforcement.
4. according to the arbitrary described sliding continuous reinforced concrete pavement of claim 1-3, it is characterized in that described drag reduction layer is plastic film layers, composite earthwork rete or composite plastic woven layer of cloth.
5. a composite pavement is characterized in that, comprising:
As the arbitrary described sliding continuous reinforced concrete pavement of claim 1-4;
Be equipped with tack coat on the described sliding continuous reinforced concrete pavement;
Be equipped with asphalt concrete pavement on the described tack coat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205862079U CN201817761U (en) | 2010-10-26 | 2010-10-26 | Sliding type continuous reinforced concrete pavement and combined pavement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205862079U CN201817761U (en) | 2010-10-26 | 2010-10-26 | Sliding type continuous reinforced concrete pavement and combined pavement |
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| Publication Number | Publication Date |
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| CN201817761U true CN201817761U (en) | 2011-05-04 |
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| CN2010205862079U Expired - Fee Related CN201817761U (en) | 2010-10-26 | 2010-10-26 | Sliding type continuous reinforced concrete pavement and combined pavement |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985823A (en) * | 2010-10-26 | 2011-03-16 | 交通运输部公路科学研究所 | Sliding continuous reinforced concrete pavement, composite pavement and construction method thereof |
| MD4160C1 (en) * | 2011-05-26 | 2013-01-31 | Андриан РУКАН | Motorroad |
| CN105862540A (en) * | 2016-04-21 | 2016-08-17 | 长安大学 | Method for determining allowable value of dry shrinkage strain and temperature shrinkage coefficient of continuous reinforcement concrete |
| CN105926388A (en) * | 2016-04-21 | 2016-09-07 | 长安大学 | Examination method for rationality of variability of continuously reinforced concrete |
| CN105948609A (en) * | 2016-04-21 | 2016-09-21 | 长安大学 | Determination method for mixing amount of expanding agent added into continuous reinforced concrete pavement |
| CN114657833A (en) * | 2022-04-11 | 2022-06-24 | 华中科技大学 | Sliding isolation layer structure for large-space expansion joint pavement and construction method |
| CN115726239A (en) * | 2022-12-09 | 2023-03-03 | 广东众强建设工程有限公司 | Prestressed pavement and construction method thereof |
-
2010
- 2010-10-26 CN CN2010205862079U patent/CN201817761U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985823A (en) * | 2010-10-26 | 2011-03-16 | 交通运输部公路科学研究所 | Sliding continuous reinforced concrete pavement, composite pavement and construction method thereof |
| MD4160C1 (en) * | 2011-05-26 | 2013-01-31 | Андриан РУКАН | Motorroad |
| CN105862540A (en) * | 2016-04-21 | 2016-08-17 | 长安大学 | Method for determining allowable value of dry shrinkage strain and temperature shrinkage coefficient of continuous reinforcement concrete |
| CN105926388A (en) * | 2016-04-21 | 2016-09-07 | 长安大学 | Examination method for rationality of variability of continuously reinforced concrete |
| CN105948609A (en) * | 2016-04-21 | 2016-09-21 | 长安大学 | Determination method for mixing amount of expanding agent added into continuous reinforced concrete pavement |
| CN105948609B (en) * | 2016-04-21 | 2018-03-23 | 长安大学 | A kind of continuous reinforced concrete pavement expansive agent dosage determines method |
| CN114657833A (en) * | 2022-04-11 | 2022-06-24 | 华中科技大学 | Sliding isolation layer structure for large-space expansion joint pavement and construction method |
| CN115726239A (en) * | 2022-12-09 | 2023-03-03 | 广东众强建设工程有限公司 | Prestressed pavement and construction method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20121026 |