CN204185754U - A kind of jointless bridge based on arranging domes after platform - Google Patents
A kind of jointless bridge based on arranging domes after platform Download PDFInfo
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- CN204185754U CN204185754U CN201420582515.2U CN201420582515U CN204185754U CN 204185754 U CN204185754 U CN 204185754U CN 201420582515 U CN201420582515 U CN 201420582515U CN 204185754 U CN204185754 U CN 204185754U
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- domes
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- abutment
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Abstract
The utility model relates to a kind of jointless bridge based on arranging domes after platform, this jointless bridge comprises bridge span structure and abutment, after platform, suitable bridge is to arranging domes, described arcuate configuration one end arch springing is connected with girder headwall or abutment abutment body, other end arch springing is arranged on a stand alone basis, the displacement transmitted by domes distortion absorption bridge span structure.This structure not only stressed clear and definite, structure simple, and is easy to construction, can effectively avoid during bridge seamless process, fragile for beam-ends shrinkage joint problem being transferred in road structure.
Description
Technical field
The utility model relates to a kind of jointless bridge based on arranging domes after platform.
Background technology
In traditional bridge construction, be the requirement adapting to bridge construction distortion, between two beam-ends, shrinkage joint is set between beam-ends and abutment, after platform, attachment strap must be set.But attachment strap is often damaged after bridge expansion joint installation and platform, vehicle can make this situation more worsen by the expansion gap device after damaging and attachment strap further, and this also becomes the thorny problem that current domestic and abroad bridge often can run in reality operation.Bumping at bridge-head 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 attachment strap, and then produces huge economic loss.
Jointless bridge is a kind of structure by adopting the modes such as overall, semi-monolithic abutment and continuous print spanning to eliminate the whole expansion gap device of bridge, and the road and bridge seam construction after stroke dependence monolithic (or the semi-monolithic formula) abutment that beam body produces due to temperature deformation and platform is absorbed.Compare with general band expansion gap device 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.
In existing seamless bridge technology, in order to cancel shrinkage joint, often transition slab at bridge head is directly connected to the end of bridge span structure, the displacement that attachment strap will be subject to bridge span structure and causes due to temperature effect, concrete shrinkage and creep, if attachment strap is direct and road structure is rigidly connected, bridge deck, attachment strap and road surface will cause very large compressive stress, even destroy.In order to meet the horizontal movement of bridge, the seam of one fixed width can only be set between attachment strap and road structure, seam can be one or several, and it is continuous to ensure road surface by pitch filling seam, though the setting of seam produces irregular crack and higher compressive stress when can prevent beam slab from stretching on attachment strap, this structure also becomes the damageable zone of seamless bridge.
In the seamless bridge technology of existing Integral Abutment, upon a drop in temperature, between banketing after the contraction of beam body can cause abutment body and platform, produce gap, again due to the push effect of platform rear vehicle load, banketed filling in this gap, make beam-ends be subject to active earth pressure; Until when temperature rises, beam body produces and expands, and after platform, soil pressure becomes the larger earth resistance of intensity, and total can not be resetted completely.This Temperature cycling reciprocating, the consequence by bad for generation two kinds: is produce the irrecoverable temperature deformation in abutment rearmost position, produces very large additional internal force in structure, and structure may be caused to produce damage and damage of bridge abutment; Two is can produce cavity or road surface depression (when cooling is shunk) and road surface after platform to play drum (when intensification is expanded).In prior art also there is same problem in the seamless bridge of semi-integral bridge abutment.
Just the fragile problem in seamed bridge shrinkage joint is transferred to bridge approach part based on the conventional seamless bridge of the problems referred to above, fundamentally do not solve bridge and indulge bridge to stretching seam problem, the problems referred to above become in seamless bridge evolution the crucial technical problem needing to solve undoubtedly.
Summary of the invention
The object of the present invention is to provide a kind of jointless bridge based on arranging domes after platform, this novel jointless bridge construction power transmission is clear and definite, effectively can absorb vertical bridge that bridge span structure transmits to distortion, avoid the generation of jointless bridge disease.
Specific embodiments of the present utility model is: a kind of jointless bridge based on arranging domes after platform, comprises bridge span structure, abutment, is provided with one by distortion with the domes absorbing the displacement that bridge span structure transmits on rear side of described abutment.
Further, when abutment is Integral Abutment, the abutment body consolidation of bridge span structure and Integral Abutment, abutment foundation is preferably Single row pillars basis, the nearly spanning end arch pin of domes is connected with abutment body, when abutment is semi-integral bridge abutment, bridge span structure by seat supports on semi-integral bridge abutment abutment body, and being provided with end carriage in bridge span structure end with soil pressure effect after resisting platform, the nearly spanning end arch pin of domes is connected with end carriage.
Further, domes nearly spanning end arch pin is that consolidation is connected or is articulated and connected with Integral Abutment Bridge abutment body or semi-integral bridge abutment bridge end carriage.
Further, described domes spanning far away end arch pin be bearing in reliable vertical force and horizontal force can be provided basis on, described basis is Extended chemotherapy or pile foundation, and described domes spanning end arch far away pin and basis to be connected for consolidation or to be articulated and connected.
Further, described domes cross section can be box-shaped, rectangle and I-shaped.
Further, described domes and bridge floor are with wide, and the accommodation rail on described domes is provided with settlement joint.
Further, described domes top is disposed with waterproofing course, soffit packing layer and supercrust from the bottom to top.
Further, drainage is provided with in described soffit packing layer.
Further, described domes bottom can be filled with gravel pack layer, and described gravel pack layer top matches with arch bottom line shape, should be provided with a thinner material layer that should be out of shape at the bottom of described domes and arch between packing layer.
Compared with prior art, the utility model has following beneficial effect: can improve the fragile common fault of existing highway bridge expansion gap device, and solving problem of vehicle bump at bridge head.The utility model patent has given full play to the good characteristic of arch structure in bridge seamless process, eliminate the setting of attachment strap after the expansion gap device of bridge and platform, effectively absorb the vertical bridge that transmits of bridge span structure to displacement, achieve the premium properties such as bridge floor is continuous, smooth, nothing jumping car, improve road-ability, decrease the later maintenance of bridge.
Therefore, the domes that the utility model is designed after abutment, from structural system and the textural defect overcome after bridge seamless process, thus achieve the real seamless process of bridge.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment one.
Fig. 2 is the structural representation of the utility model embodiment two.
Fig. 3 is the structural representation of the utility model embodiment three.
Fig. 4 is the structural representation of the utility model embodiment four.
Detailed description of the invention
The utility model, based on the jointless bridge arranging domes after platform, as shown in Figure 1, comprises bridge span structure 1, abutment, can be provided with bridge pier under abutment, arrange domes 2 after abutment, is out of shape the displacement absorbing bridge span structure 1 and transmit by domes 2.
If described abutment Integral Abutment, bridge span structure and Integral Abutment abutment body 3 consolidation, abutment foundation is preferably Single row pillars basis 4, and the nearly spanning end arch pin 5 of domes 2 is connected with abutment body 3; If semi-integral bridge abutment, bridge span structure 1 on semi-integral bridge abutment abutment body 6, and is provided with end carriage 7 to soil pressure effect after resisting platform by seat supports in bridge span structure 1 end, the nearly spanning end arch pin 5 of domes 2 is connected with end carriage 7.The nearly spanning end arch pin 5 of described domes 2 is connected with Integral Abutment Bridge abutment body 3 or semi-integral bridge abutment bridge end carriage 7, can adopt consolidation form, also can adopt articulated form.
Described domes 2 spanning end arch pin 8 far away is bearing in the basis 9 that can provide reliable vertical force and horizontal force, and basis 9 can be Extended chemotherapy, also can be pile foundation.Domes 2 spanning end arch pin 8 far away is connected with basis 9, can adopt consolidation form, also can adopt articulated form.
Described domes 2 cross section can be box-shaped, rectangle and I-shaped.Described domes 2 should with bridge floor with wide.Domes 2 top is respectively waterproofing course 10, soffit packing layer 11 and supercrust 12 in order.Accommodation rail on described domes 2 need arrange settlement joint.In the soffit packing layer of described domes 2 top, drainage is set.
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Fig. 1 ~ Fig. 4 shows four preferred embodiments of the present utility model.
Fig. 1 is the structural representation of the utility model embodiment one, as shown in Figure 1, the utility model is based on the non-telescope bridge of the monolithic arranging domes after platform, comprise the domes 2 after bridge span structure 1, bridge pier (if there is), abutment abutment body 3, Pile Foundation ' on Abutment 4, abutment and domes spanning end group far away plinth 9, waterproofing course 10, soffit packing layer 11 and supercrust 12 are set in order respectively on domes 2 top.The utility model is equivalent to two ends after common bridge platform and has respectively added one across Deck Arch Bridges, as bridge with lead the way the connection of engineering, what bridge span structure 1 transmitted be displaced through domes 2 distortion is absorbed, and takes full advantage of arch bridge seamless process characteristic.Owing to being provided with domes 2, the setting of attachment strap after platform can be cancelled.Compared with the seamed bridge of routine, be equivalent to the cost that merely add domes spanning end group far away plinth 9, but eliminate shrinkage joint, slotless design voltinism can have qualitative leap, from origin to solve after bridge seamless process bring new problem.
Fig. 2 is the structural representation of the utility model embodiment two, as shown in Figure 2, with embodiment one main distinction for this is a non-telescope bridge of semi-monolithic formula, bridge span structure 1 by seat supports on semi-integral bridge abutment abutment body 6, and being provided with end carriage 7 in bridge span structure 1 termination to soil pressure effect after resisting platform, the nearly spanning end arch pin 5 of domes 2 is connected with end carriage 7.Due to semi-integral bridge abutment end carriage limited height, therefore, after platform the rise of domes 2 apply with across the seamless bridge of footpath and Integral Abutment compared with have certain restriction.
Fig. 3 is the structural representation of the utility model embodiment three, as shown in Figure 3, be not empty below domes with embodiment one main distinction, but select good water permeability, be easy to the bottom filler 13 of the sand gravelly soil of compacting as domes 2, filler top matches with arch bottom line shape, needs to consider camber for cast-in-situ concrete domes 2.In order to play the mechanical characteristic of arch, the deformable material layers 14 that a layer thickness is 5cm ~ 10cm can be set between domes 2 and arch end filler 13.During the construction of this embodiment, needing all non-suitable material in the earth's surface below to domes 2 to remove, as being weak soil, should process by designing requirement.During construction domes, can without proping, utilization filler below, as " clay ox arch tire ", carries out domes construction.Compare embodiment one, this structural bearing capacity and safety high, but stressedly do not have embodiment one clear and definite.Domes can be regarded as attachment strap after the platform of special surface.
Fig. 4 is the structural representation of the utility model embodiment four, as shown in Figure 4, be not empty below domes with embodiment two main distinction, but select good water permeability, be easy to the bottom filler 13 of the sand gravelly soil of compacting as domes 2, filler top matches with arch bottom line shape, needs to consider camber for cast-in-situ concrete domes 2.In order to play the mechanical characteristic of arch, the deformable material layers 14 that a layer thickness is 5cm ~ 10cm is set between domes 2 and arch end filler 13.During the construction of this embodiment, needing all non-suitable material in the earth's surface below to domes 2 to remove, as being weak soil, should process by designing requirement.During construction domes, can without proping, utilization filler below, as " clay ox arch tire ", carries out domes construction.Compare embodiment two, this structural bearing capacity and safety high, but stressedly do not have embodiment two clear and definite.
Be more than preferred embodiment of the present utility model, all changes done according to technical solution of the present invention, when the function produced does not exceed the scope of technical solution of the present invention, all belong to protection scope of the present invention.
Claims (9)
1. based on the jointless bridge arranging domes after platform, comprise bridge span structure, abutment, it is characterized in that: be provided with one on rear side of described abutment by distortion with the domes absorbing the displacement that bridge span structure transmits.
2. a kind of jointless bridge based on arranging domes after platform according to claim 1, it is characterized in that: when abutment is Integral Abutment, the abutment body consolidation of bridge span structure and Integral Abutment, abutment foundation is Single row pillars basis, the nearly spanning end arch pin of domes is connected with abutment body, when abutment is semi-integral bridge abutment, bridge span structure by seat supports on semi-integral bridge abutment abutment body, and being provided with end carriage in bridge span structure end with soil pressure effect after resisting platform, the nearly spanning end arch pin of domes is connected with end carriage.
3. a kind of jointless bridge based on arranging domes after platform according to claim 2, is characterized in that: domes nearly spanning end arch pin is that consolidation is connected or is articulated and connected with Integral Abutment Bridge abutment body or semi-integral bridge abutment bridge end carriage.
4. a kind of jointless bridge based on arranging domes after platform according to Claims 2 or 3, it is characterized in that: described domes spanning far away end arch pin be bearing in reliable vertical force and horizontal force can be provided basis on, described basis is Extended chemotherapy or pile foundation, and described domes spanning end arch far away pin and basis are connected for consolidation or are articulated and connected.
5. a kind of jointless bridge based on arranging domes after platform according to claim 1, is characterized in that: described domes cross section can be box-shaped, rectangle or I-shaped.
6. a kind of jointless bridge based on arranging domes after platform according to claim 1, is characterized in that: described domes and bridge floor are with wide, and the accommodation rail on described domes is provided with settlement joint.
7. a kind of jointless bridge based on arranging domes after platform according to claim 1, is characterized in that: described domes top is disposed with waterproofing course, soffit packing layer and supercrust from the bottom to top.
8. a kind of jointless bridge based on arranging domes after platform according to claim 7, is characterized in that: be provided with drainage in described soffit packing layer.
9. a kind of jointless bridge based on arranging domes after platform according to claim 1, is characterized in that: the under-filled grittiness packing layer of described domes, and described gravel pack layer top matches with arch bottom line shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420582515.2U CN204185754U (en) | 2014-10-10 | 2014-10-10 | A kind of jointless bridge based on arranging domes after platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420582515.2U CN204185754U (en) | 2014-10-10 | 2014-10-10 | A kind of jointless bridge based on arranging domes after platform |
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| CN204185754U true CN204185754U (en) | 2015-03-04 |
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| CN201420582515.2U Expired - Fee Related CN204185754U (en) | 2014-10-10 | 2014-10-10 | A kind of jointless bridge based on arranging domes after platform |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213500A (en) * | 2014-10-10 | 2014-12-17 | 福州大学 | Jointless bridge based on arc structure arranged behind bridge abutment and construction method thereof |
| CN111032959A (en) * | 2017-08-24 | 2020-04-17 | 维也纳工业大学 | Method for manufacturing integral bridge and integral bridge |
-
2014
- 2014-10-10 CN CN201420582515.2U patent/CN204185754U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213500A (en) * | 2014-10-10 | 2014-12-17 | 福州大学 | Jointless bridge based on arc structure arranged behind bridge abutment and construction method thereof |
| CN104213500B (en) * | 2014-10-10 | 2016-09-07 | 福州大学 | Based on the jointless bridge and the construction method thereof that arrange domes after platform |
| CN111032959A (en) * | 2017-08-24 | 2020-04-17 | 维也纳工业大学 | Method for manufacturing integral bridge and integral bridge |
| CN111032959B (en) * | 2017-08-24 | 2021-10-08 | 维也纳工业大学 | Method for manufacturing integral bridge and integral bridge |
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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: 20150304 Termination date: 20171010 |