CN205000232U - Z shape transition slab structure - Google Patents
Z shape transition slab structure Download PDFInfo
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- CN205000232U CN205000232U CN201520740376.6U CN201520740376U CN205000232U CN 205000232 U CN205000232 U CN 205000232U CN 201520740376 U CN201520740376 U CN 201520740376U CN 205000232 U CN205000232 U CN 205000232U
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- attachment strap
- bridge
- swash plate
- plate
- utility
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Abstract
The utility model relates to a Z shape transition slab structure, including set up the Z shape attachment strap main part in banketing behind the platform, Z shape attachment strap main part contains upper plate, swash plate and the hypoplastron that from the top down connected gradually, the upper plate is kept away from the tip of swash plate and is followed vertical bridge to being connected with the bridge girder. The utility model discloses a Z shape attachment strap main part gradually changes to the road surface of working a telephone switchboard from girder, upper plate, swash plate, hypoplastron in the rigidity of vertical direction, and the solution has the rigidity sudden change problem that the attachment strap exists now, the utility model provides a Z shape attachment strap main part receive with transmit the girder although the bridge to the mode of deformation between transmission type attachment strap and receive between the type attachment strap, both increased restraint rigidity, do not need too long attachment strap and too much precracking again, the utility model provides a Z shape attachment strap main part can be adjusted as required to adapt to the needs of different bridges, therefore have better applied suitability, can extensively be applicable to bridge field, especially seamless bridge.
Description
Technical field
The utility model relates to a kind of Z-shaped transition slab at bridge head structure.
Background technology
The jumping car that bridge expanssion joint brings and damage due to shrinkage joint and produce secondary adverse effect (as structure additional internal force, leak to the corrosion etc. of structure) thorny problem that to be current domestic and abroad bridge often can run in reality operation.The bumping at bridge-head caused due to stretching device not only causes very large percussion to bridge and road surface, but also can reduce the driving comfort level of driver and passenger.In addition, along with the increase day by day of the magnitude of traffic flow, with replacing, serious interruption of communication is often caused to the maintenance of expansion gap device, and then produces huge economic loss.As can be seen here, the series of problems that solution bridge expanssion joint brings has been imperative.Dealt with problems in shrinkage joint at present, usually have following two kinds of thinkings: one is improvement stretching device, but it does not thoroughly eliminate maintenance and the problem of replacing of stretching device, cures the symptoms, not the disease.Two is by reducing deck expansion installation or cancel bridge extension joint, fundamentally solving the problem of stretching device.Seamless bridge is a kind of structure by adopting the mode such as full Integral Abutment, continuous print spanning to cancel the whole stretching device of bridge.Its beam body is absorbed due to the road and bridge seam construction after stroke that temperature deformation, concrete shrinkage and creep etc. produce relies on full Integral Abutment and its underpart pile foundation and platform.Compare with general seamed bridge, seamless bridge can reduce construction and the maintenance cost of bridge, simplifies the construction of bridge, improves the rideability of bridge, improves durability and the anti-seismic performance of bridge.
For the seamed bridge of tradition, the girder that temperature load, concrete shrinkage and creep etc. cause is indulged bridge and can be completed at shrinkage joint to swell-shrinking deformation.The problem of bumping at bridge-head that sedimentation of banketing after the attachment strap connecting bridge and adjacent road surface is mainly used in overcoming platform causes.Seamless bridge is owing to cancelling the stretching device of Abutment, its attachment strap and girder combine as a whole, except will playing the effect of seamed bridge attachment strap, also a part of girder to be indulged bridge to displacement transfer to adjacent road joint (rigid pavement) or road in (flexible pavement).Therefore, one of attachment strap important structure becoming seamless bridge construction, is subject to the attention of engineer always, proposes multiple attachment strap form, to adapt to various situation.Two classes can be divided into the transfer mode of displacement: transmission type and receive type according to vertical bridge.
Transmission type attachment strap girder is indulged bridge to a part of displacement transfer to attachment strap end, be divided into again panel type and flush type.Panel type attachment strap is top of banketing after being placed in platform, plays road structure effect.Panel type attachment strap need arrange at attachment strap and connection road junction the expansion joint (E.J.) that can adapt to repeated expansion and shrinkage, and need prevent from rainwater from entering in seam soaking roadbed, be a weak link of this type of bridge.Find that panel type attachment strap end still there will be subgrade settlement and road surface breakage problem in real bridge.Although this problem is compared with the shrinkage joint disease on bridge, its Prevention technology is relatively easy, but still is the subject matter that an impact uses and applies.In addition, from attachment strap to road pavement, there is obvious mutation problems in the rigidity on panel type attachment strap vertical direction.Flush type attachment strap is generally used for the situation that wiring is flexible pavement, can Further Division be flat placed type and inclined type two kinds again.Horizontal flush type attachment strap is under road surface by buried for whole for attachment strap even depth.Tilting flush type attachment strap continues to increase to the close buried depth of road pavement along with attachment strap.Engineering practice and research find that the vertical bridge of flush type attachment strap by girder is to the effect of being out of shape, local distortion can be produced in soil, make ground near attachment strap end produce sedimentation, thus reduce the planeness of road pavement layer and the comfort level of user, also have impact on ultimate service state.Simultaneously due to the rotation of attachment strap, also pavement crack can be produced, particularly bridge floor and attachment strap junction.In addition, from girder to attachment strap, there is obvious mutation problems in the rigidity on horizontal flush type attachment strap vertical direction.
Type attachment strap is received to adopt very long armored concrete plate, or be provided with powerful grade beam at attachment strap end, stop distortion to the transmission of road pavement, the vertical bridge that the minute crack change width also produced by pre-setting closeer saw kerf receives girder transmission is to distortion.Receive type attachment strap mainly through the crack developing within the scope of allowable value, thus absorb the next vertical bridge of girder transmission to distortion.But when bridge is longer, it needs longer attachment strap.Meanwhile, often there is doubt to the durability of crannied attachment strap in engineer, applies certain difficulty.In seamless bridge, the research of attachment strap is extremely important, and attachment strap design becomes one of key issue of the seamless bridge construction popularization of impact.
Utility model content
In view of the deficiencies in the prior art, technical problem to be solved in the utility model is to provide a kind of Z-shaped transition slab at bridge head structure, the rigidity mutation problems that existing attachment strap exists can not only be solved, but also can adjust as required, to adapt to the needs of different bridge, have and apply applicability preferably.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of Z-shaped transition slab at bridge head structure, comprise the Z-shaped attachment strap main body on banketing after being arranged on platform, described Z-shaped attachment strap main body comprises the upper plate, swash plate and the lower plate that connect successively from top to bottom, and described upper plate indulges bridge to being connected away from the end of swash plate with bridge main beam edge.
Preferably, banket after platform has all been filled in the below of the below of described upper plate, the close-table side of described swash plate, described lower plate, the basic unit that the side, far from the table of described swash plate, the top of described lower plate and lower plate all fill road pavement away from the end of swash plate bankets.
Preferably, gliding material is provided with between banketing after described upper plate and the platform below it, gliding material is provided with between banketing after the platform of described swash plate and its close-table side, the basic unit of the road pavement of described swash plate and its side, far from the table is provided with gliding material between banketing, be provided with gliding material between banketing after described lower plate and the platform below it, described lower plate and above it and lower plate banket away from the end of swash plate and the basic unit of road pavement between be provided with gliding material.
Preferably, described upper plate and swash plate group are angled and are greater than 0 ° and the angle being less than 180 °, and described lower plate and swash plate group are angled and are greater than 0 ° and the angle being less than 180 °.
Preferably, described Z-shaped attachment strap main body is cast in situs component or prefabricated units.
Compared with prior art, the utility model has following beneficial effect:
(1) the utility model is gradually changed to road pavement from girder, upper plate, swash plate, lower plate by the rigidity of Z-shaped attachment strap main body at vertical direction, solves the rigidity mutation problems that existing attachment strap exists; It is large to the constraint rigidity of dilatancy that Z-shaped attachment strap main body in the utility model indulges bridge for girder, and the constraint rigidity of shrinkage strain is little, (the former produces additonal pressure to be conducive to (reinforcing bar and prestressing force) concrete girder stressed, the latter produces additional pulling force), and concrete girder is the primary structure form of China's beam bridge; Z-shaped attachment strap main body in the utility model is received and is transmitted girder and indulges bridge to the mode of being out of shape between transmission type attachment strap and receive between type attachment strap, has both increased constraint rigidity, and has not needed again oversize attachment strap and too much precracking; Z-shaped attachment strap main body in the utility model can adjust as required, to adapt to the needs of different bridge, thus has and applies applicability preferably, can be widely used in bridge field, particularly seamless bridge.
(2) the Z-shaped attachment strap main body in the utility model can regard the combination of panel type, tilting flush type and horizontal flush type attachment strap as.When the swash plate and lower plate length etc. zero of Z-shaped attachment strap main body, Z-shaped attachment strap main body is just degenerated to panel type attachment strap; When the upper plate and lower plate length etc. zero of Z-shaped attachment strap main body, Z-shaped attachment strap main body is just degenerated to tilting flush type attachment strap; When the upper plate and swash plate length etc. zero of Z-shaped attachment strap main body, Z-shaped attachment strap main body is just degenerated to horizontal flush type attachment strap; When swash plate and horizontal plane perpendicular time, swash plate becomes vertical plate, the grade beam in similar inner digestion type attachment strap; When swash plate parallels with horizontal plane, then become panel type attachment strap.
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment unitary construction schematic diagram.
Fig. 2 is the organigram of the Z-shaped attachment strap main body of the utility model embodiment.
Fig. 3 is that the utility model embodiment first is constructed schematic diagram.
Fig. 4 is that the utility model embodiment second is constructed schematic diagram.
Fig. 5 is the utility model embodiment the 3rd construction schematic diagram.
Fig. 6 is the utility model embodiment the 4th construction schematic diagram.
In figure: 1-Z shape attachment strap main body, 11-upper plate, 12-swash plate, 13-lower plate, bankets after 2-platform, 3-bridge main beam, and the basic unit of 4-road pavement bankets, 5-gliding material.
Detailed description of the invention
For above-mentioned feature and advantage of the present utility model can be become apparent, special embodiment below, and coordinate accompanying drawing, be described in detail below.
As shown in Fig. 1 ~ 6, a kind of Z-shaped transition slab at bridge head structure, comprise the Z-shaped attachment strap main body 1 of to banket after being arranged on platform on 2, described Z-shaped attachment strap main body 1 comprises the upper plate 11, swash plate 12 and the lower plate 13 that connect successively from top to bottom, one end of described upper plate 11 with bridge main beam 3 along vertical bridge to being connected, the other end of described upper plate 11 is connected with one end of swash plate 12, and the other end of described swash plate 12 is connected with one end of lower plate 13.
In the utility model embodiment, banket 2 after platform has all been filled in the below of the below of described upper plate 11, the close-table side of described swash plate 12, described lower plate 13, the basic unit that the side, far from the table of described swash plate 12, the top of described lower plate 13 and lower plate 13 all fill road pavement away from the end of swash plate 12 bankets 4.
In the utility model embodiment, banket between 2 after described upper plate 11 and the platform below it and be provided with gliding material 5, banket after the platform of described swash plate 12 and its close-table side between 2 and be provided with gliding material 5, the basic unit of the road pavement of described swash plate 12 and its side, far from the table bankets between 4 and is provided with gliding material 5, banket between 2 after described lower plate 13 and the platform below it and be provided with gliding material 5, described lower plate 13 and above it and lower plate 13 banket between 4 away from the end of swash plate 12 and the basic unit of road pavement and be provided with gliding material 5.
In the utility model embodiment, described upper plate 11 is angled with swash plate 12 groups and is greater than 0 ° and the angle being less than 180 °, preferred, the angle formed is obtuse angle; Described lower plate 13 is angled with swash plate 12 groups and is greater than 0 ° and the angle being less than 180 °, and preferably, the angle of described composition is obtuse angle; Preferably, described upper plate 11 all parallels with horizontal plane with lower plate 13.
In the utility model embodiment, described Z-shaped attachment strap main body 1 is cast in situs component or prefabricated units.
In the utility model embodiment, a kind of construction method of Z-shaped transition slab at bridge head structure, comprises any one Z-shaped transition slab at bridge head structure described above, and carries out according to the following steps:
(1) first excavate the foundation ditch that to banket after platform, after filling platform according to the shape of Z-shaped transition slab at bridge head body, banket 2, banket after described platform 2 upper surface be Z-shaped shape;
(2) then banket after platform 2 upper surface arrange at least one deck gliding material 5, described gliding material 5 on the whole surface in the Z-shaped shape matched with Z-shaped transition slab at bridge head body soffit;
(3) then on described gliding material 5, template and reinforcing bar is arranged again, poured in place concrete, form Z-shaped transition slab at bridge head body, or prefabricated Z-shaped transition slab at bridge head body is directly positioned over the top of described gliding material 5, wherein upper plate 11 away from the end of swash plate 12 through connecting reinforcement with bridge main beam 3 along vertical bridge to being connected;
(4) then arrange at least one deck gliding material 5 in the side, far from the table of described swash plate 12, above described lower plate 13 and lower plate 13 all arrange at least one layer of gliding material 5 away from the end of swash plate 12;
(5) basic unit of filling road pavement above the gliding material 5 finally arranged above the side, far from the table, lower plate 13 of described swash plate 12 bankets 4, the basic unit of filling road pavement outside the gliding material 5 that described lower plate 13 is arranged away from the end of swash plate 12 bankets 4, completes connection road construction.
The utility model is not limited to above-mentioned preferred forms, and anyone can draw other various forms of Z-shaped transition slab at bridge head structures under enlightenment of the present utility model.All equalizations done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (5)
1. a Z-shaped transition slab at bridge head structure, it is characterized in that: comprise the Z-shaped attachment strap main body on banketing after being arranged on platform, described Z-shaped attachment strap main body comprises the upper plate, swash plate and the lower plate that connect successively from top to bottom, and described upper plate indulges bridge to being connected away from the end of swash plate with bridge main beam edge.
2. Z-shaped transition slab at bridge head structure according to claim 1, it is characterized in that: banket after platform has all been filled in the below of the below of described upper plate, the close-table side of described swash plate, described lower plate, the basic unit that the side, far from the table of described swash plate, the top of described lower plate and lower plate all fill road pavement away from the end of swash plate bankets.
3. Z-shaped transition slab at bridge head structure according to claim 2, it is characterized in that: between banketing after described upper plate and the platform below it, be provided with gliding material, gliding material is provided with between banketing after the platform of described swash plate and its close-table side, the basic unit of the road pavement of described swash plate and its side, far from the table is provided with gliding material between banketing, be provided with gliding material between banketing after described lower plate and the platform below it, described lower plate and above it and lower plate banket away from the end of swash plate and the basic unit of road pavement between be provided with gliding material.
4. Z-shaped transition slab at bridge head structure according to claim 1, it is characterized in that: described upper plate and swash plate group are angled and are greater than 0 ° and the angle being less than 180 °, described lower plate and swash plate group are angled and are greater than 0 ° and the angle being less than 180 °.
5. Z-shaped transition slab at bridge head structure according to claim 1, is characterized in that: described Z-shaped attachment strap main body is cast in situs component or prefabricated units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520740376.6U CN205000232U (en) | 2015-09-23 | 2015-09-23 | Z shape transition slab structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520740376.6U CN205000232U (en) | 2015-09-23 | 2015-09-23 | Z shape transition slab structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205000232U true CN205000232U (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520740376.6U Expired - Fee Related CN205000232U (en) | 2015-09-23 | 2015-09-23 | Z shape transition slab structure |
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| Country | Link |
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| CN (1) | CN205000232U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113384A (en) * | 2015-09-23 | 2015-12-02 | 福州大学 | Z-shaped bridge end transition slab structure and construction method thereof |
| CN105821759A (en) * | 2016-04-14 | 2016-08-03 | 江西博慧工程技术服务有限公司 | Deformation compatibility composite type bridge end transition slab structure and construction method |
-
2015
- 2015-09-23 CN CN201520740376.6U patent/CN205000232U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113384A (en) * | 2015-09-23 | 2015-12-02 | 福州大学 | Z-shaped bridge end transition slab structure and construction method thereof |
| CN105821759A (en) * | 2016-04-14 | 2016-08-03 | 江西博慧工程技术服务有限公司 | Deformation compatibility composite type bridge end transition slab structure 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 |
Granted publication date: 20160127 Termination date: 20180923 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |