CN202705886U - Box girder bridge flange plate splicing structure - Google Patents
Box girder bridge flange plate splicing structure Download PDFInfo
- Publication number
- CN202705886U CN202705886U CN 201220392607 CN201220392607U CN202705886U CN 202705886 U CN202705886 U CN 202705886U CN 201220392607 CN201220392607 CN 201220392607 CN 201220392607 U CN201220392607 U CN 201220392607U CN 202705886 U CN202705886 U CN 202705886U
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- box girder
- flange plate
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- steel plate
- bridge
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Abstract
The utility model relates to a box girder bridge flange plate splicing structure. When a novel bridge and an old bridge are spliced, the problems that concrete cracks, maintenance cost is high, stress is complex, and vibrating noise influences riding comfort exist in a conventional splicing mode. According to the box girder bridge flange plate splicing structure, an old box girder flange plate and a novel box girder flange plate are connected in an abutting mode, a gap is arranged between the old box girder flange plate and the novel box girder flange plate, and the gap is filled with a concrete bonding adhesive layer. The upper side surfaces and the lower side surfaces of the old box girder flange plate and the novel box girder flange plate are all bound with an upper connecting steel plate and a lower connecting steel plate through binding adhesive layers of the steel plates and concrete, and the upper side surfaces and the lower side surfaces of the old box girder flange plate and the novel box girder flange plate are provided with chemical anchoring bolts which anchor the upper connecting steel plate and the lower connecting steel plate. The box girder bridge flange plate splicing structure avoids concentrating of internal force, local stress is even, the problem that the durability of the structure is affected by concrete cracking is solved, good deformability is achieved, effect caused by differential settlement is low, the stress of the steel plates is low, local warping falling off of the steel plates can not happen, the steel plates can not vibrate so that noise can not be generated, and good driving comfort is achieved.
Description
Technical field
The utility model relates to new, old bridge wing plate splicing construction in a kind of box girder bridge widening project, is specifically related to a kind of box girder bridge frange plate splicing construction.
Background technology
In recent years, China's economy burns the wind, and has driven the flourish of communication; Personnel and goods and materials are mobile day by day frequent simultaneously, also so that the transport need surge.Highway is day by day crowded as the passage that personnel and goods and materials flow, in order to satisfy the economic development needs, the annual a huge sum of money that drops into of country is built highway, but, it is excessive to go to alleviate congested in traffic cost by new highway fully, therefore the origin road being widened transformation, improve its capacity and level-of-service, is a kind of effective approach.
Common bridge is hollow slab bridge, T beam bridge and box girder bridge in the Expressway Widening engineering, the method that wherein box girder bridge is widened newly, old bridge splices is: (1) is rigidly connected, new and old bridge is also set up the diaphragm of some except the outrigger base splicing between the case beam; (2) concrete pin, former bridge outside cantilever is partly cut by designing requirement, the dabbing concrete surface, at assigned address bar planting and brushing interface glue, widening bridge box girder cantilever plate embedded bar and bar planting welds, build the steel fibre expansive concrete and form wet seam, do the concrete hinge in the wet seam; (3) steel plate overlap joint is reserved the slit of 2cm between new and old bridge, when mating formation bridge floor, new and old bridge respectively stays not making of 75cm, former bridge remove mat formation clean up after, brushwork epoxy resin adhesive (or burying anchoring piece underground) is pasted (or crab-bolt) overlap joint steel plate.The pre-buried anchoring piece welding of overlap joint steel plate and new bridge, the wide about 25～30cm of steel plate, thickness 0.8～1cm, interval 1～2m lays.
The diaphragm the most outstanding advantage that is rigidly connected is that overall performance is good, can resist the additional internal force and the distortion that produce because of shrinkage and creep and differential settlement etc., but the internal force that the diaphragm place produces is more concentrated, diaphragm is easy to crack, complicated construction technique, bar planting quantity is many; When adopting the concrete hinge, less on former bridge impact if there is small relative settlement, suitably reduce the crack of junction, be beneficial to structural safety, still, and complicated construction technique, maintenance costs is higher; The steel plate overlap joint is whole common stressed good, and the differential settlement of newly-built part bridge is less on the impact of former bridge; The new old bridge mobile load of same section can produce different amounts of deflection, can pass through the steel plate compatible deformation, still, have some problems in the anchoring of course under cyclic loading lower steel plate, camber of sheet comes off and may cause this place's bridge floor asphalt concrete pavement layer to damage, and the steel plate deformed vibration noise is wayward.
The utility model content
The purpose of this utility model provides the box girder bridge frange plate splicing construction that a kind of concrete cracking, maintenance costs height, stressed complexity, vibration noise that can overcome the prior art existence affects road-ability.
The technical scheme that the utility model adopts is:
A kind of box girder bridge frange plate splicing construction includes old case beam wing plate and new case beam wing plate, it is characterized in that:
Described old case beam wing plate and the docking of new case beam wing plate, between leave the gap, fill concrete glue line in the gap;
The up and down both side surface of described old case beam wing plate and new case beam wing plate all is bonded with upper junction steel plate and lower junction steel plate by steel plate and concrete glue line, and is provided with the chemical anchoring bolt upper junction steel plate and lower junction steel plate are carried out anchoring.
Gap between described old case beam wing plate and the new case beam wing plate is 3cm.
The width of described upper junction steel plate and lower junction steel plate is 30cm, and with the concrete surface bond length of a side case beam wing plate be 50cm.
The utlity model has following advantage:
1, a kind of case beam of the utility model wing plate splicing construction has avoided internal force to concentrate, and local pressure is even, avoids concrete cracking and affects Structural Endurance Problem.
2, a kind of case beam of the utility model wing plate splicing construction has preferably deformability, is subjected to the relative settlement influence degree little, can adapt to the different amounts of deflection that new old bridge produces under live loading.
3, a kind of case beam of the utility model wing plate splicing construction steel plate stress is lower, and steel plate Local warping can not occur comes off, and effectively guarantees the normal use of bridge floor asphalt concrete pavement layer.
4, the junction steel plate of a kind of case beam of the utility model wing plate splicing construction is closely connected in concrete surface, and steel plate vibrations can not occur and produces noise, has good road-ability.
5, disease is few in the use procedure of a kind of case beam of the utility model wing plate splicing construction, and maintenance cost is low.
Description of drawings
Fig. 1 is the utility model structure chart.
Fig. 2 is case beam wing plate splicing construction plane.
Among the figure, the upper junction steel plate of 1-, junction steel plate under the 2-, 3-concrete binding glue-line, 4-steel plate and concrete glue line, 5-chemical anchoring bolt, the old case beam of 6-wing plate, the new case beam of 7-wing plate.
The specific embodiment
Below in conjunction with the specific embodiment the utility model is described in detail.
A kind of box girder bridge frange plate splicing construction described in the utility model includes old case beam wing plate 6 and new case beam wing plate 7, and old case beam wing plate 6 and new case beam wing plate 7 dock, between leave the gap, the gap is 3cm, fill concrete glue line 3 in the gap.The up and down both side surface of old case beam wing plate 6 and new case beam wing plate 7 all is bonded with upper junction steel plate 1 and lower junction steel plate 2 by steel plate and concrete glue line 4, and being provided with the upper junction steel plates 1 of 5 pairs on chemical anchoring bolt and lower junction steel plate 2 carries out anchoring, chemical anchoring bolt 5 is arranged on the two ends of junction steel plate 1 and lower junction steel plate 2.Chemical anchoring bolt 5 is for adopting the crab-bolt of colloid bonding.
The width of upper junction steel plate 1 and lower junction steel plate 2 is 30cm, and with the concrete surface bond length of a side case beam wing plate be 50cm, the vertical bridge of box girder bridge wing plate splicing construction is 2m to setting space.
Wherein, the effect of upper junction steel plate 1 is that when relative settlement occured, assistance concrete binding glue-line 3 tensions were avoided edge of a wing concrete in tension to destroy, and improved the splicing construction integral rigidity; The effect of lower junction steel plate 2 is that when being subjected to the bridge floor live loading, assistance concrete binding glue-line 3 tensions are avoided edge of a wing concrete in tension to destroy, and improved the splicing construction integral rigidity; The effect of concrete binding glue-line 3 is, plays the Transfer of Shear effect between new, second hand cases beam wing plate, and preferably deformability is provided; The effect of steel plate and concrete glue line 4 is, upper junction steel plate 1 and lower junction steel plate 2 are bonded in concrete surface, makes steel plate and concrete jointly stressed; The effect of chemical anchoring bolt 5 is, plays the anchoring effect in the steel plate end, avoids invar plate end glue-line stress to concentrate and steel sheet peeling off occurs.
It is cited that content of the present utility model is not limited to embodiment, and the conversion of any equivalence that those of ordinary skills take technical solutions of the utility model by reading the utility model manual is claim of the present utility model and contains.
Claims (3)
1. a box girder bridge frange plate splicing construction includes old case beam wing plate (6) and new case beam wing plate (7), it is characterized in that:
Described old case beam wing plate (6) and the docking of new case beam wing plate (7), between leave the gap, fill concrete glue line (3) in the gap;
The up and down both side surface of described old case beam wing plate (6) and new case beam wing plate (7) all is bonded with upper junction steel plate (1) and lower junction steel plate (2) by steel plate and concrete glue line (4), and is provided with chemical anchoring bolt (5) upper junction steel plate (1) and lower junction steel plate (2) are carried out anchoring.
2. a kind of box girder bridge frange plate splicing construction according to claim 1 is characterized in that:
Gap between described old case beam wing plate (6) and the new case beam wing plate (7) is 3cm.
3. a kind of box girder bridge frange plate splicing construction according to claim 1 and 2 is characterized in that:
The width of described upper junction steel plate (1) and lower junction steel plate (2) is 30cm, and with the concrete surface bond length of a side case beam wing plate be 50cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220392607 CN202705886U (en) | 2012-08-09 | 2012-08-09 | Box girder bridge flange plate splicing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220392607 CN202705886U (en) | 2012-08-09 | 2012-08-09 | Box girder bridge flange plate splicing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202705886U true CN202705886U (en) | 2013-01-30 |
Family
ID=47586204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220392607 Expired - Fee Related CN202705886U (en) | 2012-08-09 | 2012-08-09 | Box girder bridge flange plate splicing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202705886U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106592412B (en) * | 2016-12-01 | 2018-05-15 | 中铁第四勘察设计院集团有限公司 | A kind of double girder beam-ends splicing seams waterproof constructions of box-shaped |
| CN108755405A (en) * | 2018-05-30 | 2018-11-06 | 重庆交通大学 | Assembling steel plate bridge floor continuous structure and construction method |
| CN109610337A (en) * | 2018-12-27 | 2019-04-12 | 东南大学 | The construction and construction method for widening bridge flange plate are reinforced using UHPC in-situ layer |
| CN111441263A (en) * | 2020-04-10 | 2020-07-24 | 广东精特建设工程有限公司 | Construction method for widening rigid connection of new and old bridges for keeping traffic passing |
| CN114032724A (en) * | 2021-09-18 | 2022-02-11 | 同济大学 | Assembled recycled concrete rural pavement |
-
2012
- 2012-08-09 CN CN 201220392607 patent/CN202705886U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106592412B (en) * | 2016-12-01 | 2018-05-15 | 中铁第四勘察设计院集团有限公司 | A kind of double girder beam-ends splicing seams waterproof constructions of box-shaped |
| CN108755405A (en) * | 2018-05-30 | 2018-11-06 | 重庆交通大学 | Assembling steel plate bridge floor continuous structure and construction method |
| CN109610337A (en) * | 2018-12-27 | 2019-04-12 | 东南大学 | The construction and construction method for widening bridge flange plate are reinforced using UHPC in-situ layer |
| CN111441263A (en) * | 2020-04-10 | 2020-07-24 | 广东精特建设工程有限公司 | Construction method for widening rigid connection of new and old bridges for keeping traffic passing |
| CN114032724A (en) * | 2021-09-18 | 2022-02-11 | 同济大学 | Assembled recycled concrete rural pavement |
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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: 20130130 Termination date: 20210809 |