CN104878687B - Semi-monolithic formula is seamless, and Ramp bridge end of the bridge constructs - Google Patents
Semi-monolithic formula is seamless, and Ramp bridge end of the bridge constructs Download PDFInfo
- Publication number
- CN104878687B CN104878687B CN201510331482.3A CN201510331482A CN104878687B CN 104878687 B CN104878687 B CN 104878687B CN 201510331482 A CN201510331482 A CN 201510331482A CN 104878687 B CN104878687 B CN 104878687B
- Authority
- CN
- China
- Prior art keywords
- bridge
- attachment strap
- girder
- abutment
- semi
- 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
Links
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 18
- 210000003205 muscle Anatomy 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000005266 casting Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 7
- 239000010410 layer Substances 0.000 description 9
- 238000013461 design Methods 0.000 description 3
- 230000009191 jumping Effects 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000008207 working material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses the seamless Ramp bridge end of the bridge structure of a kind of semi-monolithic formula, including girder, semi-integral bridge abutment, attachment strap, anchor beam and road pavement; This place's girder and abutment are split structure, and it is placed on the platform cap of abutment by bearing, and this semi-integral bridge abutment is additionally provided with abutment parados; The near platform end of this attachment strap and this girder are linked together by main muscle, and the far platform end of this attachment strap is provided with to water with it and builds up an overall described ground anchor beam, and this ground anchor beam extend within ground layer; It is provided with at least one of which reinforcing bar in described attachment strap, and every layer of reinforcing bar all extends downward within described ground anchor beam; This road pavement continuous laying is above girder and attachment strap. This structure makes the deformation of girder receive by the deck expansion joint of absolute altitude higher position, and is not deformed at end of the bridge at the bottom of the slope of Ramp bridge, from without arranging expansion joint at this, and then reduces maintenance cost and noise pollution.
Description
Technical field
The invention belongs to bridge field, particularly relate to a kind of Ramp bridge end of the bridge structure adopting semi-integral bridge abutment in absolute altitude lower.
Background technology
For adapting to the requirement of bridge structure deformation, it will usually between two beam-ends, arrange expansion joint between beam-ends and abutment. But, arranging of deck expansion joint can bring jumping car problem, jumps car and bridge and road surface not only can cause very big impulsive force, but also can reduce the driving comfort level of driver and passenger. In addition deck expansion joint is fragile, it is necessary to periodic maintenance or replacing, not only increases maintenance cost, also can affect traffic during maintenance. Furthermore, for building the overpass in city, the impulsive force that jumping car causes will produce bigger noise, the life of resident near impact.
Various seamless bridge structure is gone out for the continuous design studies of the problems referred to above, Bridge Design person and builder.
Chinese invention patent application number 200310110474.3 discloses one " complete seamless bridge in road ", attachment strap is arranged by this bridge structure relative to inclination, and full duration arranges single or multiple lift earth working material in the above road surface of attachment strap or roadbed, when bridge deformation, attachment strap deforms with beam body, and in soil structures after beam body displacement transfer to platform, earth working material deformation will be absorbed. But the bridge of this structure is by being only applicable to adopt the situation of Asphalt Concrete Deck Pavement and bituminous concrete road pavement, the long scope of application of bridge is extremely limited, for also inapplicable Ramp bridge.
Application number be 200810107509.0 Chinese invention patent application disclose one " structure of continuously reinforced link road pavement for seamless bridge ", this seamless bridge is when deformation, attachment strap deforms with girder equally, and main beam deformation is transferred in backstage soil structures and concrete joint circuit surface, link panel full duration arranges the elongated reinforcing bar of monolayer and is spread safely by bigger main beam deformation and receive, thus reaching the effect that bridge is seamless. This seamless bridge is in actual use, it is allowed to link panel forms tiny crack to adapt to the deformation of girder, and when being positioned at dry area or Drainage Design better area, the impact of road deck fine cracks is little; But for comparatively moist south or the poor area of end of the bridge draining, then there is the risk that moisture penetrates into road deck by crack and makes steel bar corrosion, and then affect the service life of road.
Application number be 201310149773.1 Chinese invention patent application disclose " a kind of seamless bridge neotectonics adopting balance arm and construction method thereof ", this seamless bridge utilizes the linear deformation freely swinging to realize bridge beam body of balance arm (i.e. Z-shaped attachment strap), and for the ease of the swing of balance arm (i.e. Z-shaped attachment strap), it is necessary at balance arm (i.e. Z-shaped attachment strap) periphery, expansion joint (E.J.) is set.When girder temperature drop shrinks, then very easily form bigger contraction fissure at expansion joint (E.J.) place and reflex to road surface, and affecting the normal use of road.
Application number be 201320460439.3 Chinese utility model patent disclose " bridgehead structures of a kind of seamless type ", the same cracking easily caused by road surface in the gap thickeied between extension and transition slab at bridge head of this bridgehead structures leveling layer.
Additionally, existing seamless bridge structure is not all suitable for the Ramp bridge structure having certain slope, also as the main beam structure that tilts of Ramp bridge has the weight component of motion under slope, so that beam-ends is stretched extremely uneven with the deformation of contracting. Furthermore, inventor thinks, deforming due to bridge temperature influence is objective fact, therefore fully phasing out expansion joint can only cause road pavement damaged, the quantity by reducing expansion joint as far as possible it is only capable of to reduce maintenance cost and noise pollution for this, inventor is exactly based on this point and sets out, and through long-term practice research, has this case to produce eventually.
Summary of the invention
The technical problem to be solved is in that to provide a kind of seamless Ramp bridge end of the bridge structure of semi-monolithic formula cancelling end of the bridge expansion joint at the bottom of Ramp bridge slope.
For solving above-mentioned technical problem, the technical solution of the present invention is:
A kind of semi-monolithic formula Ramp bridge end of the bridge structure, including girder, semi-integral bridge abutment, attachment strap, anchor beam and road pavement; This girder and abutment are split structure, and it is placed on the platform cap of abutment by bearing, and this abutment is additionally provided with abutment parados; The near platform end of this attachment strap and this girder are linked together by main muscle, and the far platform end of this attachment strap is provided with to water with it and builds up an overall described ground anchor beam, and this ground anchor beam extend within ground layer; It is provided with at least one of which reinforcing bar in described attachment strap, and every layer of reinforcing bar all extends downward within described ground anchor beam; This road pavement continuous laying is above girder and attachment strap.
Preferably, being provided with top bars and lower floor's reinforcing bar two-layer reinforcing bar in described attachment strap, two-layer reinforcing bar all extends downward within described ground anchor beam.
Preferably, described main muscle becomes an entirety with the superiors' bar connecting in described attachment strap.
Preferably, described attachment strap can be positioned below multiple one-piece casting with it ground anchor beam together.
Preferably, should with described girder consolidation from the bridge pier that described abutment is nearest below described girder.
After adopting such scheme, owing to the present invention has been arranged below the ground anchor beam that is cast in it together at attachment strap far platform end, so that in the basic unit being stabilized in road surface that the end of the bridge of Ramp bridge is tightly, therefore can be withstood by ground anchor beam and attachment strap and make girder deform to top, slope during main beam deformation elongation, then made girder to deforming at the bottom of slope by attachment strap pulling force and girder deadweight component when main beam deformation shortens, the expansion joint that the deformation of such girder is all pushed up by slope is received, it is not deformed at end of the bridge at the bottom of the slope of Ramp bridge, from without arranging expansion joint, and then reduce maintenance cost and noise pollution.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Disclosed is a kind of seamless Ramp bridge end of the bridge structure adopting semi-integral bridge abutment in absolute altitude lower, as it is shown in figure 1, be presently preferred embodiments of the present invention. Described seamless Ramp bridge end of the bridge include girder 1, semi-integral bridge abutment 3, attachment strap 5, anchor beam 6 and road pavement 7.Wherein:
Described girder 1 constructs for split with abutment 3, and it is placed on the platform cap of abutment 3 by bearing 12, and is additionally provided with abutment parados 4 on this semi-integral bridge abutment 3.
Described attachment strap 5 near platform end is linked together by main muscle 8 with described girder 1, and the far platform end of this attachment strap 5 is provided with to water with it and builds up an overall ground anchor beam 6, and this ground anchor beam 6 extend within ground layer 11.
It is provided with at least one of which reinforcing bar in described attachment strap 5, the present embodiment is provided with top bars 9 and lower floor's reinforcing bar 10 two-layer reinforcing bar, and every layer of reinforcing bar all extends downward within described ground anchor beam 6.
Described road pavement 7 continuous laying is above girder 1 and attachment strap 5.
Further, supported by some bridge piers 2 below described girder 1, and should consolidate with described girder 1 from the bridge pier 2 that described semi-integral bridge abutment 3 is nearest, to increase the thrust stiffness of seamless end of the bridge.
After adopting said structure, owing to attachment strap 5 is linked together with girder 1 by main muscle 8, so that attachment strap 5 can deform with girder 1, and attachment strap 5 can also be securely fixed in ground layer 11 by the ground anchor beam 6 that the far platform end of attachment strap 5 is arranged. So, when girder 1 extends because of expanded by heating, ground anchor beam 6 and attachment strap 5 will upwards withstand girder 1, make girder 1 be only capable of pushing up Direction distortion to the slope of Ramp bridge, thus receiving in the expansion joint pushing up place to slope by deformation; And when beam 1 stretches because catching a cold and shortens, the anchorage effect of ground anchor beam 6 and the deadweight component of girder 1 make the deformation of girder 1 be only capable of to direction at the bottom of slope, deformation are received by the expansion joint on top, slope equally. Such structure, makes bottom, slope no longer be deformed, and therefore can not arrange expansion joint at bridgehead position at the bottom of slope, thus reducing the quantity of bridge expanssion joint. And it was verified that produced car and the noise of jumping in the expansion joint of bottom, slope is more than top, slope and flat slope place, the expansion joint therefore eliminating bottom, slope will be substantially reduced maintenance cost and noise pollution.
Furthermore, described main muscle 8 can be connected integral with the superiors' reinforcing bar 9 in described attachment strap 5, to increase the bonding strength between girder 1 and attachment strap 5.
Additionally, multiple one-piece casting with it ground anchor beam 6 together can be arranged below described attachment strap 5, to increase the anchoring strength of attachment strap 5.
The above, be only presently preferred embodiments of the present invention, not the technical scope of the present invention is imposed any restrictions, therefore the change that claim under this invention and description are done in every case or modification, all should belong within the scope that patent of the present invention contains.
Claims (5)
1. the seamless Ramp bridge end of the bridge structure of a semi-monolithic formula, it is characterised in that: include girder (1), semi-integral bridge abutment (3), attachment strap (5), anchor beam (6) and road pavement (7); This girder (1) constructs for split with abutment (3), and it is placed on the platform cap of abutment (3) by bearing (12), and this abutment (3) is additionally provided with abutment parados (4); The near platform end of this attachment strap (5) and this girder (1) are linked together by main muscle (8), and the far platform end of this attachment strap (5) is provided with to water with it and builds up an overall described ground anchor beam (6), and this ground anchor beam (6) extend within ground layer (11); It is provided with at least one of which reinforcing bar in described attachment strap (5), and every layer of reinforcing bar all extends downward within described ground anchor beam (6); This road pavement (7) continuous laying is in girder (1) and attachment strap (5) top.
2. the seamless Ramp bridge end of the bridge structure of semi-monolithic formula according to claim 1, it is characterized in that: be provided with top bars (9) and lower floor's reinforcing bar (10) two-layer reinforcing bar in described attachment strap (5), two-layer reinforcing bar all extends downward within described ground anchor beam (6).
3. the seamless Ramp bridge end of the bridge structure of semi-monolithic formula according to claim 1 and 2, it is characterised in that: described main muscle (8) becomes an entirety with the superiors' bar connecting in described attachment strap (5).
4. the seamless Ramp bridge end of the bridge structure of semi-monolithic formula according to claim 1 and 2, it is characterised in that: described attachment strap (5) is arranged below multiple one-piece casting with it ground anchor beam (6) together.
5. the seamless Ramp bridge end of the bridge structure of semi-monolithic formula according to claim 1 and 2, it is characterised in that: described girder (1) lower section consolidates from the bridge pier (2) that described abutment (3) is nearest with described girder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510331482.3A CN104878687B (en) | 2015-06-16 | 2015-06-16 | Semi-monolithic formula is seamless, and Ramp bridge end of the bridge constructs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510331482.3A CN104878687B (en) | 2015-06-16 | 2015-06-16 | Semi-monolithic formula is seamless, and Ramp bridge end of the bridge constructs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104878687A CN104878687A (en) | 2015-09-02 |
| CN104878687B true CN104878687B (en) | 2016-06-15 |
Family
ID=53946349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510331482.3A Expired - Fee Related CN104878687B (en) | 2015-06-16 | 2015-06-16 | Semi-monolithic formula is seamless, and Ramp bridge end of the bridge constructs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104878687B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101440602A (en) * | 2008-12-19 | 2009-05-27 | 湖南大学 | Structure of continuously reinforced link road pavement for seamless bridge |
| CN102852086A (en) * | 2012-10-09 | 2013-01-02 | 福州大学 | High-performance semi-integral abutment structure and construction method thereof |
| CN103194964B (en) * | 2013-04-26 | 2015-07-01 | 福州大学 | Novel seamless bridge structure adopting swing beam and construction method for novel seamless bridge structure |
| JP5389293B1 (en) * | 2013-06-11 | 2014-01-15 | 株式会社ハナミズキ・ブリッジ・プランニング | Fixed structure |
| CN104652257B (en) * | 2015-02-09 | 2016-06-15 | 上海勘测设计研究院有限公司 | Seamless bridge abutment structure |
| CN204728196U (en) * | 2015-06-16 | 2015-10-28 | 厦门理工学院 | Semi-monolithic formula is seamless, and Ramp bridge end of the bridge constructs |
-
2015
- 2015-06-16 CN CN201510331482.3A patent/CN104878687B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104878687A (en) | 2015-09-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103266574B (en) | Simply-supported box girder bridge strengthening method with oblique cables | |
| CN201883374U (en) | Side retaining wall type semi-integral abutment | |
| CN109853381B (en) | Transitional structure for preventing bridge head from jumping and construction method thereof | |
| CN101117790A (en) | Closure method of large-span continuous steel truss arch | |
| CN108867310A (en) | The short rib T beam bridge of pretensioning prestressed concrete and its construction method | |
| CN106522112A (en) | Cable-stayed bridge side span beam section erecting system and method thereof | |
| CN208151833U (en) | A kind of construction of novel RC-masonry combination arch bridge | |
| CN104652242B (en) | Derrick connecting structure used for reinforcing PSC (Pre-stressed Concrete) continuous box girder bridge and construction method | |
| CN204728196U (en) | Semi-monolithic formula is seamless, and Ramp bridge end of the bridge constructs | |
| CN108999088A (en) | A kind of construction method of cable-stayed bridge | |
| CN104878686B (en) | Prevent the construction method of Curved Beam Bridge horizontal comparison device | |
| CN110847010B (en) | Construction and construction method suitable for large-span abutment rigid frame bridge | |
| CN107905093B (en) | Multistage bridge abutment structure for improving rear soil settlement of bridge abutment and construction method thereof | |
| CN113322771B (en) | Seamless bridge structure based on ultrahigh-toughness cement-based composite material and construction method | |
| CN104911990B (en) | Bridge head structure of integral seamless slope bridge | |
| CN104213500B (en) | Based on the jointless bridge and the construction method thereof that arrange domes after platform | |
| CN206538687U (en) | Cable-stayed bridge end bay beam section construction system | |
| CN103835238B (en) | A kind of high pier cable stayed bridge No. 0 block non-stand construction method and the structure in constructing | |
| CN106758827B (en) | Chevron shaped prestressed concrete pre-tensioned method Bridge Erector and application method | |
| CN211200026U (en) | Simply support steel-concrete composite beam decking continuous structure | |
| CN104878687B (en) | Semi-monolithic formula is seamless, and Ramp bridge end of the bridge constructs | |
| CN210827072U (en) | Middle seamless telescopic structure of middle and small-span simply-supported highway bridge | |
| CN204738219U (en) | Integral seamless sloping bridge either end of a bridge structure | |
| CN203741729U (en) | Pre-stress supporting system used for bridge incremental launching construction method | |
| CN102747678A (en) | Unequal-height V-shaped bridge pier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20160615 |