CN205369012U - Reinforcing bar net of expansion joint changeover portion - Google Patents
Reinforcing bar net of expansion joint changeover portion Download PDFInfo
- Publication number
- CN205369012U CN205369012U CN201521062468.XU CN201521062468U CN205369012U CN 205369012 U CN205369012 U CN 205369012U CN 201521062468 U CN201521062468 U CN 201521062468U CN 205369012 U CN205369012 U CN 205369012U
- Authority
- CN
- China
- Prior art keywords
- expansion joint
- bar
- changeover portion
- finish rolling
- reinforcing bar
- 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.)
- Expired - Fee Related
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- Road Paving Structures (AREA)
Abstract
The utility model provides a bearing capacity that expansion joint changeover portion reinforcing bar net, the expansion joint changeover portion is improved in coordination with the atress in the pitch highway section that can make expansion joint boundary beam, changeover portion and near. It be in the bituminous paving layer pre -buried wave form reinforcing bar net, through the finish rolling spiral with its and changeover portion reinforcing bar net, expansion joint boundary beam be connected together to the nut of screwing on on the finish rolling spiral lets the finish rolling spiral have certain prestressing force deposit, reduces heavily loaded car to the destruction at expansion joint, reduces construction instability factor and subgrade settlement to the influence of expansion joint performance, great improvement the life -span in expansion joint highway section.
Description
Art
This utility model relates to a kind of bar-mat reinforcement processing bridge expanssion joint changeover portion disease, especially can improve expansion joint total bearing capacity, extend the bar-mat reinforcement in expansion joint life-span.
Background technology
At present, known expansion joint changeover portion adopts pre-buried stirrup or joins appropriate regular reinforcement, is also adopted by steel fiber reinforced concrete as changeover portion on higher ranked highway.Utilize changeover portion concrete by fixing for side bar constraint in expansion joint, and make road surface connect smooth-going, bear carload.Expanded joint structure is fine, stress is complicated, and the arrangement of reinforcement construction quality of traditional changeover portion is unstable, it is inaccurate to position, and is affected bigger by objective factor.On the other hand, traditional armored concrete and steel fiber reinforced concrete changeover portion can not effectively and Colophonium (or other ground surface materials) road surface be combined into overall common bearing load.Expansion joint with defective work is premature degradation under heavy load action, causes expansion joint disabler, pavement destruction.
Summary of the invention
In order to reduce the objective factor impacts on expansion joint performance such as construction is unstable and subgrade settlement, overcome existing expansion joint changeover portion concrete with Colophonium (or other ground surface materials) road surface in conjunction with poor deficiency, this utility model provides the structure of the expansion joint built-in bar-mat reinforcement of changeover portion concrete, this bar-mat reinforcement can not only improve the bearing capacity at expansion joint, and can extend the life-span at expansion joint.
This utility model solve its technical problem be the technical scheme is that one, first pre-buried ripple type bar-mat reinforcement in the blacktop near expansion joint changeover portion, and reserved vertical bridge is to welding point, pre-buried stirrup in changeover portion beam body；Two, transverse steel is set in changeover portion stirrup ring, finish rolling deformed bar is arranged at below transverse steel, stirrup plays the effect of constraint transverse steel and finish rolling deformed bar, separating pipe on overlapping on finish rolling deformed bar makes it separate with coagulation, and finish rolling deformed bar one end welds together with the reserved welding point of bituminous paving bar-mat reinforcement；Three, install and position expansion joint, and make finish rolling deformed bar traverse expansion joint side bar preformed hole, treat after casting concrete that concrete reaches design strength, anchoring nut on the finish rolling deformed bar other end overlaps, use torque spanner stretch-draw finish rolling deformed bar, allow finish rolling deformed bar have certain prestressed pressure deposit.Respectively can connect into overall coordination stress to expansion joint side bar, changeover portion and Colophonium section under the factors such as load, changeover portion subgrade settlement, construction instability at automobile, reduce concrete cracking, improve the integrated carrying ability at expansion joint.
The beneficial effects of the utility model are, expansion joint, changeover portion and neighbouring Colophonium section cooperative bearing can be made, reduce the heavy-load automobile destruction to expansion joint, reduce the unstable factor of construction and the subgrade settlement impact on expansion joint performance, in the bigger life-span that improve section, expansion joint, reinforcing mesh structure is simple.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Fig. 1 is the vertical elevation of an embodiment of the present utility model.
Fig. 2 is the I--I sectional view of Fig. 1.
1. expansion joint side bar, 2. finish rolling deformed bar in figure, 3. separate pipe, 4. changeover portion transverse steel, 5. blacktop, 6. changeover portion, 7. anchoring nut, 8. water proof rubber bar, 9. stirrup, 10. blacktop longitudinal reinforcement, 11. oblique reinforcing bar, 12. blacktop transverse steels, 13. welding points, 14. beam body, 15. beam body transverse steels.
Detailed description of the invention
In the embodiment shown in fig. 1, blacktop longitudinal reinforcement (10) and blacktop transverse steel (12) and oblique reinforcing bar (11) are welded to form blacktop (5) embedded bar net；Under stirrup (9), muscle becomes beam body (14) steel bar stress net with beam body transverse steel (15) colligation, beam body transverse steel (15) colligation is muscle upper limb under stirrup (9), relies on beam body transverse steel (15) restriction hoop (9)；The upper muscle of stirrup (9) becomes changeover portion (6) constraint bar-mat reinforcement with changeover portion transverse steel (4) colligation, changeover portion transverse steel (4) colligation, in the upper muscle lower edge of stirrup (9), relies on stirrup (9) constraint changeover portion transverse steel (4)；Finish rolling deformed bar (2) puts separation pipe (3) colligation in changeover portion transverse steel (4) lower edge, relies on changeover portion transverse steel (4) constraint finish rolling deformed bar (2)；Bituminous paving bar-mat reinforcement is connected by welding point (13) with finish rolling deformed bar one end, and the finish rolling deformed bar other end passes expansion joint side bar (1) preformed hole anchoring nut of screwing on.Treat that changeover portion (6) concrete reaches design strength, utilize torque spanner, by design torsion, anchoring nut is carried out fining twisted steel prestressed stretch-draw.
As shown in Figure 2, two blacktop transverse steel (12) spacing should be greater than 1m, arranged in parallel；Blacktop longitudinal reinforcement (10) termination is bent into hook type, and blacktop transverse steel (12) is placed in hook；Oblique reinforcing bar is bent into dihedral, is respectively welded on two blacktop transverse steels (12) by two ends and middle bending part, forms corrugated, and prestress anchoraging power can be transmitted uniformly at blacktop.
Claims (4)
1. the bar-mat reinforcement of an expansion joint changeover portion, changeover portion and beam body and expansion joint side bar are connected into entirety by stirrup and transverse steel, it is characterized in that: blacktop embedded bar net, changeover portion concrete bar and expansion joint side bar are connected into entirety by finish rolling deformed bar.
2. the bar-mat reinforcement of expansion joint according to claim 1 changeover portion, it is characterized in that: blacktop embedded bar net is made up of the certain longitudinal reinforcement of two parallel transverse steels, spacing and oblique reinforcing bar, longitudinal reinforcement one end is bent into hook type, and transverse steel is placed in hook；Oblique reinforcing bar is bent into V-arrangement, two ends and middle bending part is respectively welded on two transverse steels.
3. the bar-mat reinforcement of expansion joint according to claim 1 changeover portion, is characterized in that putting separation pipe on finish rolling deformed bar.
4. the bar-mat reinforcement of expansion joint according to claim 1 changeover portion, is characterized in that finish rolling deformed bar is through preformed hole on the side bar of expansion joint, and correspondingly-sized nut of screwing on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521062468.XU CN205369012U (en) | 2015-12-11 | 2015-12-11 | Reinforcing bar net of expansion joint changeover portion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521062468.XU CN205369012U (en) | 2015-12-11 | 2015-12-11 | Reinforcing bar net of expansion joint changeover portion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205369012U true CN205369012U (en) | 2016-07-06 |
Family
ID=56258578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521062468.XU Expired - Fee Related CN205369012U (en) | 2015-12-11 | 2015-12-11 | Reinforcing bar net of expansion joint changeover portion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205369012U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869021A (en) * | 2017-04-08 | 2017-06-20 | 郑华 | A kind of bridge expanssion joint transition region concrete structure of long service life |
| CN110485288A (en) * | 2019-10-10 | 2019-11-22 | 河南聚研材料科技有限公司 | A kind of filling type bridge extension joint and construction method |
-
2015
- 2015-12-11 CN CN201521062468.XU patent/CN205369012U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869021A (en) * | 2017-04-08 | 2017-06-20 | 郑华 | A kind of bridge expanssion joint transition region concrete structure of long service life |
| CN110485288A (en) * | 2019-10-10 | 2019-11-22 | 河南聚研材料科技有限公司 | A kind of filling type bridge extension joint and construction method |
| CN110485288B (en) * | 2019-10-10 | 2024-05-14 | 河南聚研材料科技有限公司 | Landfill type bridge expansion device and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20161211 |