CN201972070U - Force transfer structure for concrete road surface expansion joint - Google Patents
Force transfer structure for concrete road surface expansion joint Download PDFInfo
- Publication number
- CN201972070U CN201972070U CN2011200625527U CN201120062552U CN201972070U CN 201972070 U CN201972070 U CN 201972070U CN 2011200625527 U CN2011200625527 U CN 2011200625527U CN 201120062552 U CN201120062552 U CN 201120062552U CN 201972070 U CN201972070 U CN 201972070U
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- CN
- China
- Prior art keywords
- expansion joint
- force transfer
- road surface
- sleeper beam
- concrete road
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to a force transfer structure for a concrete road surface expansion joint, belonging to the field of highways and urban roads. The force transfer structure replaces a steel force transfer rod in the prior art, a sleeper beam is arranged at the lower part of concrete at the road surface expansion joint, a layer of felt is paved on the sleeper beam, concrete road surfaces at two sides of the expansion joint can slide freely during expansion with heat and contraction with cold, and vehicle load acts on the sleeper beam at the expansion joint and has a good force transfer function. Compared with the steel force transfer rod, the force transfer structure is convenient to set, solves the defect that the concrete road surface at the expansion joint part is damaged as the force transfer rod of the prior art is not properly set, and can be applied to highways, urban roads, airport runways and parking aprons.
Description
Technical field
The utility model relates to a kind of rigid pavement expansion joint (E.J.) power transmission structure, relates to the construction of urban road and highway concrete road surface, particularly relates to rigid pavement expansion joint (E.J.) power transmission structure.
Background technology
Urban road and highway concrete road surface will be provided with expansion joint (E.J.) at a certain distance, dowel bar is set in the expansion joint (E.J.), purpose is that the road surface does not cause the road surface to damage when Various Seasonal is expanded with heat and contract with cold, the effect of dowel bar is to transmit the vertical direction vehicular load, make the rigid pavement at expansion joint (E.J.) two ends simultaneously stressed, and dowel bar can slide in the horizontal direction, as be provided with improper, dowel bar level or vertical direction tilt, and will cause the rigid pavement to damage, and this is one of common disease in rigid pavement.
The rigid pavement expansion joint (E.J.) dowel bar of prior art is to adopt 28～38 millimeters of diameters, and long 400～500 millimeters round steel is provided with one along expansion joint (E.J.) interval 300 millimeter.The setting of dowel bar has strict demand, it is placed in the middle, vertical with expansion joint (E.J.) to require dowel bar to require, one end of dowel bar is fixed in the rigid pavement, the other end is provided with sliding sleeve, the central axial direction of dowel bar will be coincide with the road surface glide direction of expanding with heat and contract with cold, if there is deflection the position that is provided with, when stretch in the rigid pavement, the dowel bar that is embedded in the rigid pavement can cause concrete to damage.
Summary of the invention
The purpose of this utility model is: expansion joint (E.J.) power transmission structure in a kind of rigid pavement is provided, cancellation is arranged on the dowel bar in the rigid pavement, in road surface expansion joint (E.J.) place concrete lower part the higher concrete sleeper beam of intensity is set, the rigid pavement can be free to slide on sleeper beam when stretching under the thermal stresses effect, the time spent is done at vehicular load in the rigid pavement at expansion joint (E.J.) two ends, is supported and can not produced the faulting of slab ends phenomenon by sleeper beam.The beneficial effects of the utility model show that mainly the cost of sleeper beam and dowel bar is suitable substantially, but easy construction has solved the prior art dowel bar the improper drawback that causes rigid pavement, expansion joint (E.J.) place to damage is set.
The utility model is realized by following technology:
The utility model is by sleeper beam 1, malthoid 2, expansion joint (E.J.) plate 3 is formed, the bottom that the rigid pavement, position 4 of expansion joint (E.J.) need be set on the road surface is provided with sleeper beam 1, sleeper beam 1 adopts concreting, concrete strength is consistent with the road surface, sleeper beam 1 upper berth one deck malthoid 2, the effect of malthoid 2 is to isolate rigid pavement 4 and sleeper beam 1, rigid pavement 4 can be free to slide when flexible, expansion joint (E.J.) plate 3 is positioned at the centre on sleeper beam 1 top, vehicular load acts on the rigid pavement 4 of expansion joint (E.J.) plate 3 both sides, can not sink to occurring the faulting of slab ends phenomenon by sleeper beam 1 support, play the effect of the power transmission of expansion joint (E.J.).
Description of drawings
Fig. 1 is an expansion joint (E.J.) power transmission structure profile diagram.
The specific embodiment
The prior grooving in position of expansion joint (E.J.) need be set on the road surface, be shaped as up big and down small trapezoidal, 400 millimeters of bottom width, 800 millimeters of top widths, are seen Fig. 1 by dark 200 millimeters.Two sides are 1: 1 slope, the one, stressed better, the 2nd, be convenient to excavation.In the groove that digs, build sleeper beam 1, adopt the concrete consistent, generally use C35 concreting with pavement strength.When the expansion joint (E.J.) position, at sleeper beam 1 upper berth one deck malthoid 2 of building in advance, the size of malthoid 2 is consistent with sleeper beam 1 upper surface at pavement construction, and expansion joint (E.J.) plate 3 is arranged on the top of malthoid 2, gets final product according to construction Craft concreting road surface 4.
Claims (3)
1. a rigid pavement expansion joint (E.J.) power transmission is constructed, and it is characterized in that: comprise sleeper beam (1), malthoid (2), expansion joint (E.J.) plate (3), described sleeper beam (1) is positioned at the below of road surface expansion joint (E.J.).
2. expansion joint (E.J.) power transmission structure in rigid pavement according to claim 1 is characterized in that: described sleeper beam (1) is shaped as up big and down small trapezoidal, is formed by concreting.
3. expansion joint (E.J.) power transmission structure in rigid pavement according to claim 1 is characterized in that: shop, described sleeper beam (1) top one deck malthoid (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200625527U CN201972070U (en) | 2011-03-01 | 2011-03-01 | Force transfer structure for concrete road surface expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200625527U CN201972070U (en) | 2011-03-01 | 2011-03-01 | Force transfer structure for concrete road surface expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201972070U true CN201972070U (en) | 2011-09-14 |
Family
ID=44577177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200625527U Expired - Fee Related CN201972070U (en) | 2011-03-01 | 2011-03-01 | Force transfer structure for concrete road surface expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201972070U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105908592A (en) * | 2016-04-21 | 2016-08-31 | 卢碧娴 | Long-service-life pavement |
| CN106988320A (en) * | 2017-04-26 | 2017-07-28 | 李德群 | Limestone zone discards pit and is transformed into reservoir, the pool, the reclamation method in pond |
| CN109826326A (en) * | 2017-11-23 | 2019-05-31 | 上海市机电设计研究院有限公司 | The single-column expansion gap device of overlength industrial premises |
| CN111005405A (en) * | 2018-12-27 | 2020-04-14 | 中国二十冶集团有限公司 | Component for preventing uneven settlement of comprehensive pipe gallery and manufacturing method thereof |
-
2011
- 2011-03-01 CN CN2011200625527U patent/CN201972070U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105908592A (en) * | 2016-04-21 | 2016-08-31 | 卢碧娴 | Long-service-life pavement |
| CN106988320A (en) * | 2017-04-26 | 2017-07-28 | 李德群 | Limestone zone discards pit and is transformed into reservoir, the pool, the reclamation method in pond |
| CN109826326A (en) * | 2017-11-23 | 2019-05-31 | 上海市机电设计研究院有限公司 | The single-column expansion gap device of overlength industrial premises |
| CN111005405A (en) * | 2018-12-27 | 2020-04-14 | 中国二十冶集团有限公司 | Component for preventing uneven settlement of comprehensive pipe gallery and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20110914 Termination date: 20120301 |