CN105002818A - Frame type bridge and road transition section structure connected with bridge abutment into whole - Google Patents
Frame type bridge and road transition section structure connected with bridge abutment into whole Download PDFInfo
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- CN105002818A CN105002818A CN201510192991.2A CN201510192991A CN105002818A CN 105002818 A CN105002818 A CN 105002818A CN 201510192991 A CN201510192991 A CN 201510192991A CN 105002818 A CN105002818 A CN 105002818A
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Abstract
The invention relates to the technical field of bridge subgrade settlement differences in traffic engineering, and in particular to a frame type bridge and road transition section structure connected with a bridge abutment into a whole. The frame type bridge and road transition section structure comprises the bridge abutment, a beam body and a subgrade body, and further comprises a reinforced concrete transition section frame. The reinforced concrete transition section frame structurally comprises a reinforced concrete precast horizontal plate and a reinforced concrete precast inclined supporting plate. The reinforced concrete precast horizontal plate is connected with the upper end of the bridge abutment through a first high-strength hinged bolt. The reinforced concrete precast inclined supporting plate is connected with the lower end of the bridge abutment through a second high-strength hinged bolt. The other end of the reinforced concrete precast horizontal plate is connected with the other end of the reinforced concrete precast inclined supporting plate through a third high-strength hinged bolt. The reinforced concrete precast inclined supporting plate is fixedly attached to the subgrade body. The reinforced concrete precast inclined supporting plate is connected with the subgrade body. The subgrade body provides powerful support for the reinforced concrete transition section frame, and settlement of the bridge and road transition section is effectively controlled.
Description
Technical field
The present invention relates to traffic engineering Bridge subgrade settlement difference control technology field, be specifically related to a kind of frame type bridge road transition section structure linked into an integrated entity with abutment.
Background technology
In traffic engineering field, no matter be highway or railway, bridge (or tunnel, culvert) road changeover portion problem is just as one piece of persistent ailment recurrent exerbation and be difficult to thorough healing.End of the bridge " jumping car " phenomenon caused owing to there is settlement difference between abutment (tunnel face or culvert) and roadbed, have a strong impact on the comfortableness of driving, reduce the traffic capacity of vehicle driving speed and road, simultaneously along with the further increase of sedimentation, strengthen the damage to vehicle and bridge abutment structure thing, bring huge potential safety hazard to traffic safety.
So to the traffic route be jointly made up of the different structure such as bridge, tunnel, culvert, roadbed and track, different structure influence each other and constitute smooth-going, a smooth circuit.In order to ensure its requirement that is smooth-going, smooth and comfortableness, the settlement difference along circuit longitudinal direction just strictly must be controlled, especially in tripe systems building joint.Owing to there are differences in the rigidity of structure between tripe systems building, in addition the difficulty that between the contact of tripe systems building, section exists when constructing, therefore, just settlement difference can be there is after construction between tripe systems building, structure different after circuit operation exacerbate settlement difference especially under the effect of traffic dynamic load, and particularly outstanding for the settlement difference of bridge (or tunnel, culvert) road changeover portion.
At present, at traffic engineering construction field, the measure that the settlement difference problem of administering bridge (or tunnel, culvert) road transition position is mainly taked has three: the first, measures of foundation treatment, mainly adopts cushion, reinforcing method etc. to process transition region soft foundation; Second arranges semi-rigid changeover portion, mainly selects high-quality, light filler fills transition region; 3rd, rebound method process transition region is set.Though these methods above-mentioned alleviate the excessive problem of transition region settlement difference to a certain extent, all can not tackle the problem at its root.
Summary of the invention
The technical problem that will solve of the present invention is to provide a kind of frame type bridge road transition section structure linked into an integrated entity with abutment, it can reduce the sedimentation of changeover portion greatly, improve the resistance to overturning of changeover portion, bridge (or tunnel, culvert) road transition region settlement difference problem can not be effected a radical cure to solve prior art.Technical scheme provided by the invention explains with bridge basement transition stage.
The present invention's technical scheme taked that solves the problem is: a kind of frame type bridge road transition section structure linked into an integrated entity with abutment, comprise abutment, beam body and roadbed body, it is characterized in that: also comprise steel concrete changeover portion framework, reinforced concrete changeover portion soil frame construction comprises reinforced concrete prefabricated level board and reinforced concrete prefabricated tilt prop; Reinforced concrete prefabricated level board is connected by the first high-strength link bolt with abutment upper end, reinforced concrete prefabricated tilt prop is connected by the second high-strength link bolt with abutment lower end, and the other end of reinforced concrete prefabricated level board is connected by the strong link bolt of third high with the reinforced concrete prefabricated tilt prop other end; Roadbed body is fixed in reinforced concrete prefabricated tilt prop laminating.
High-strength link bolt used in the present invention at precast rc slab with when building abutment and member integrated make.
The inclined edge surfaces of steel concrete changeover portion framework, namely reinforced concrete prefabricated tilt prop and roadbed body are closely fixedly linked, roadbed body is that reinforced concrete frame structure provides powerful support, by steel concrete changeover portion framework to the transition region sedimentation achieve effective control of bridge road.The invention solves the problem occurring settlement difference in traffic route between special-shaped structure because of stiffness difference.Its advantage is compared with prior art:
1) the steel concrete level board of changeover portion steel concrete changeover portion framework, steel concrete tilt prop and abutment are connected to form an overall statically determinate structrue, effectively traffic load can be delivered to abutment itself from structure stress, control the distortion of transition structure body, thus reduce the settlement difference between abutment and changeover portion; Steel concrete changeover portion framework is triangular structure, from abutment to roadbed direction, distance between steel concrete tilt prop and steel concrete level board reduces gradually, and the thickness of roadbed body below steel concrete tilt prop increases gradually, achieve the transition gradually between transition section structure and roadbed body, thus effectively prevent the generation of secondary settlement between transition section structure body and roadbed body.
2) this transition section structure is reinforced concrete frame structure, forms a cavity in inside configuration, effectively can overcome entity transition section structure body in the past and to conduct oneself with dignity excessive drawback, thus reduces transition section structure itself because of the sedimentation caused of conducting oneself with dignity; This transition section structure also reduces load pressure to the roadbed body contacted with it simultaneously, reduces the distortion of roadbed body, thus realizes the smooth transition of bridge road sedimentation, facilitates maintenance.
3) scope of application of the present invention is comparatively wide, and construction quality is controlled.Reinforced concrete frame transition section structure of the present invention is not only applicable to the transition between abutment and roadbed, is applicable between tunnel and roadbed yet, the transition between culvert and roadbed.The steel concrete level board used due to this frame transitions segment structure and tilt prop are prefabrication and assembly construction, effectively can control construction quality, overcome bridge road changeover portion construction quality in the past and are difficult to deficiency up to standard.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention,
Reference numeral is as follows: 1-abutment, 2-reinforced concrete prefabricated level board, 3-reinforced concrete prefabricated tilt prop, the 4-the first high-strength link bolt, 5-roadbed body, 6-beam body, 7-ground, 8-the second high-strength link bolt, the strong link bolt of 9-third high, 10-cavity.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described: as shown in Figure 1, a kind of frame type bridge road transition section structure linked into an integrated entity with abutment, comprise abutment 1, beam body 6 and roadbed body 5, also comprise steel concrete changeover portion framework, reinforced concrete changeover portion soil frame construction comprises reinforced concrete prefabricated level board 2 and reinforced concrete prefabricated tilt prop 3; Reinforced concrete prefabricated level board 2 is connected by the first high-strength link bolt 4 with abutment 1 upper end, reinforced concrete prefabricated tilt prop 3 is connected by the second high-strength link bolt 8 with abutment 1 lower end, and the other end of reinforced concrete prefabricated level board 2 is connected by the strong link bolt 9 of third high with reinforced concrete prefabricated tilt prop 3 other end; Roadbed body 3 is fixed in reinforced concrete prefabricated tilt prop 3 laminating.Ground 7 is existing structure, does not associate with between improvement of the present invention.
Reinforced concrete prefabricated level board 2, between abutment 1 and reinforced concrete prefabricated tilt prop 3, form cavity 10.Like this, frame construction bridge road transition section structure is lightweight, reduces the sedimentation that transition section structure dead weight causes.
When frame construction bridge road transition section structure uses high-strength link bolt at precast rc slab and builds abutment and member integrated make.Abutment adopts the mode of concrete cast-in-situ, and steel concrete level board and steel concrete tilt prop adopt prefabrication system, when component strength reaches designing requirement, are assembling by Bolt Connection.
In the present invention, roadbed body layer-by-layer rolling is compacted to designing requirement, and with this frame transitions section contact position, cut slope after subgrade compaction, its gradient is consistent with the reinforced concrete prefabricated tilt prop gradient.In construction, refill after roadbed body settlement stability and join frame transitions segment structure.
The above, be only the specific embodiment of the present invention, can not limit scope of the present invention with it.Therefore the amplification of its equivalent assemblies, reduce, replace, or the equal change done according to scope of patent protection of the present invention and amendment, all still belong to the covering scope of claims of the present invention.
Claims (2)
1. the frame type bridge road transition section structure linked into an integrated entity with abutment, comprise abutment, beam body and roadbed body, it is characterized in that: also comprise steel concrete changeover portion framework, reinforced concrete changeover portion soil frame construction comprises reinforced concrete prefabricated level board (2) and reinforced concrete prefabricated tilt prop (3); Reinforced concrete prefabricated level board (2) is connected by the first high-strength link bolt (4) with abutment (1) upper end, reinforced concrete prefabricated tilt prop (3) is connected by the second high-strength link bolt (8) with abutment (1) lower end, and the other end of reinforced concrete prefabricated level board (2) is connected by the strong link bolt of third high (9) with reinforced concrete prefabricated tilt prop (3) other end; Roadbed body (3) is fixed in reinforced concrete prefabricated tilt prop (3) laminating.
2. a kind of frame type bridge road transition section structure linked into an integrated entity with abutment as claimed in claim 1, is characterized in that: reinforced concrete prefabricated level board (2), form cavity (10) between abutment (1) and reinforced concrete prefabricated tilt prop (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510192991.2A CN105002818B (en) | 2015-04-22 | 2015-04-22 | The frame type bridge road transition section structure linked into an integrated entity with abutment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510192991.2A CN105002818B (en) | 2015-04-22 | 2015-04-22 | The frame type bridge road transition section structure linked into an integrated entity with abutment |
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| CN105002818A true CN105002818A (en) | 2015-10-28 |
| CN105002818B CN105002818B (en) | 2016-08-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107460797A (en) * | 2017-09-06 | 2017-12-12 | 南京铁道职业技术学院 | The transition segment structure and manufacture method of a kind of hard and soft drop-over |
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2015
- 2015-04-22 CN CN201510192991.2A patent/CN105002818B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107460797A (en) * | 2017-09-06 | 2017-12-12 | 南京铁道职业技术学院 | The transition segment structure and manufacture method of a kind of hard and soft drop-over |
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| CN105002818B (en) | 2016-08-24 |
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