CN2622245Y - Bridge end chain type transitional means - Google Patents
Bridge end chain type transitional means Download PDFInfo
- Publication number
- CN2622245Y CN2622245Y CN 03225929 CN03225929U CN2622245Y CN 2622245 Y CN2622245 Y CN 2622245Y CN 03225929 CN03225929 CN 03225929 CN 03225929 U CN03225929 U CN 03225929U CN 2622245 Y CN2622245 Y CN 2622245Y
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- bridge
- chain type
- type transition
- carrier bar
- rebound
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Abstract
The utility model relates to highway engineering and construction engineering, particularly relates to a bridge-head chain transition apparatus designed to overcome the problem of bumping at the bridge-head. A plurality of chain transition structures are parallelly arranged on the embankments at the both ends of a bridge-head or a culvert that needs removal of differential settlement; each row of chain transition structure comprises a link joint and a plurality of segments of transition plates connected by hinge joint. The utility model, like a chain, is also applicable to the differential deformation between a bridge-head/culvert and an embankment to permanently keep the continuity and smoothness of the road surface, completely clear the differential settlement of the bridge-head, and avoid vehicle bumping at the bridge-head.
Description
Technical field
The utility model relates to highway engineering, construction work, is used to solve the end of the bridge chain type transition apparatus of problem of bumping at bridge-head specifically.
Background technology
In construction work, often differential settlement appears in the deformation rigidity difference owing to adjacent two parts structure, seriously influences its function of use.Differential settlement in end of the bridge and culvert and embankment junction in the wherein most typical example highway communication produces " bumping at bridge-head " phenomenon.Settling amount is little because bridge and culvert (often adopting pile foundation) have very big deformation rigidity, and it is little and settling amount is bigger that embankment is constructed on ground deformation rigidity, produces " bumping at bridge-head " phenomenon thereby differential settlement occurs." bumping at bridge-head " phenomenon that the end of the bridge differential settlement causes is very general problem in highway communication, particularly serious in the soft clay area problem, it has reduced road speed and comfort level widely, can cause traffic jam, and cause traffic accident and vehicle damage easily, become " bottleneck " problem that improves traffic safety and quality, perplexing people always.According to incompletely statistics, only just have thousands of bridge blocks and culvert serious end of the bridge " jumping car " problem to occur, constantly repair and keep in repair and often cause serious traffic congestion, and annual reparation and maintenance costs are very expensive in the coastal area, Guangdong.
In order to solve problem of bumping at bridge-head, highway design and constructor have spent a large amount of money and time, have carried out a large amount of research and test, but problem does not obtain satisfied solution always.The main method that solves the end of the bridge differential settlement at present is, utilize foundation consolidating technology such as cement mixing pile, broken stone pile, sand compaction pile and lay methods such as geotechnological braid, transform and improve the performance of end of the bridge roadbed, simultaneously, improve the compactness that approach embankment bankets, reducing the distortion of roadbed and embankment, thereby reduce the differential settlement of end of the bridge and embankment junction.Also there is the light material of employing to replace approach embankment to banket, reduces embankment load to reduce the method for differential settlement.There is many-sided problem in above method.At first, there is the end of the bridge differential settlement inevitably in the inaccessible all the time close degree of deformation performance with bridge and culvert basis of roadbed its deformation performance after reinforcing, and root problem is not resolved; The second, above technical method requires the longer stretch base of end of the bridge is handled, and construction cost is often very high; Next is that construction period is long, and has increased the complexity of construction.An one of the main reasons of always failing to solve " bumping at bridge-head " problem at present is, the technology path of method is unreasonable, it is only unilaterally considered from the distortion of end of the bridge or culvert two ends roadbed and embankment, like this no matter how much money of cost also can not be eliminated the distortion difference between end of the bridge and culvert and the embankment, this differential settlement difficulty more will be eliminated in the particularly coastal weak soil distribution area of waiting.The harm that can only alleviate " bumping at bridge-head " by continuous repairing end of the bridge road surface at present, but this continuous repairing road surface itself not only makes the maintenance cost significantly improve, and repair the road surface and often cause traffic jam, and pavement durability is reduced.
The utility model content
For eliminating the differential settlement between end of the bridge and culvert and the embankment, thoroughly solve " bumping at bridge-head " problem, must break through at present only from reducing the one-sided traditional design thought of considering of end of the bridge roadbed and embankment distortion, compatibility of deformation relation between overall thinking end of the bridge and culvert and the embankment, make distortion between the two remain unanimity, avoid " bumping at bridge-head " phenomenon to eliminate differential settlement.
The purpose of this utility model is to provide a kind of end of the bridge chain type transition apparatus at the problem of prior art existence, solves the compatibility of deformation problem between end of the bridge and culvert and the embankment.Described chain type transition apparatus adapts to differential deformation between end of the bridge and culvert and the embankment as chain, remains the continuity and the flatness on road surface, eliminates differential settlement fully, avoids the maintenance that repeats on road surface; When thoroughly solving " bumping at bridge-head ", reduce roadbed reinforcing technique required standard, shorten the construction period, reduce the technical difficulty and the construction cost of soft soil roadbed reinforcing widely; Described chain type transition apparatus can also be used in the Other Engineering field, as is used to adjust and adapts to differential settlement between building and the ground etc.
End of the bridge chain type transition apparatus of the present utility model is on the end of the bridge that will eliminate differential settlement or culvert two ends embankment, lays some chain type transition structures side by side, and every row chain type transition structure is by carrier bar and the plurality of sections rebound is hinged forms, and is independent mutually between every row.
In order to make the chain type transition apparatus adjust differential settlement, to keep the road surface continuous and level and smooth, described carrier bar one end is articulated on the abutment (cushion cap), and the other end and rebound are hinged.End of the bridge chain type transition apparatus integral body is laid on and forms the road surface on the approach embankment, in producing the differential settlement process, the rotation of hinge make remain between abutment and the carrier bar distortion continuously and the road surface level and smooth, eliminated the differential settlement on road surface between end of the bridge or culvert and the embankment fully; The other end of carrier bar sinks synchronously with embankment, also remain between carrier bar and the rebound distortion continuously and the road surface level and smooth.
Described carrier bar, rebound can be armored concrete slab, comprise the various fiber concrete slabs of steel fibre, steel work plate or composite panel.
Describedly hingedly can be that pin is hinged, cylinder sliding bearing or rolling bearing.
The length of carrier bar is generally 6-8 rice, and the length of rebound is generally 5-7 rice; Carrier bar is pressed traffic load and is calculated the preparation reinforcing bar, and rebound is made constructional reinforcement.
The utility model device can adapt to differential deformation between end of the bridge and culvert and the embankment as chain, remains the continuity and the flatness on road surface, eliminates the end of the bridge differential settlement fully, avoids " jumping car " phenomenon.
The utility model compared with prior art, have following advantage: the utility model device has good compliance to differential settlement, when taking place, differential settlement remains the continuity and the flatness on road surface, can be used for solving " jumping car " problem that long-term puzzlement people's end of the bridge differential settlement causes, improve comfort level and the highway traffic safety and the quality of driving, and avoid the repeatedly reparation on end of the bridge road surface, reduce the maintenance cost on road surface, the harm that also can be used for solving the differential settlement between building and the ground.In addition, can also reduce technical requirements and standard, reduce the technical difficulty and the construction cost of soft soil roadbed reinforcing widely, have remarkable economical and social benefit end of the bridge roadbed or building lot reinforcing.According to computational analysis, this transition structure can be regulated the above differential settlement of 50cm, and the relative rotation between each junction plate is controlled in 4 °, has enough flatness.Though the raising of transition structure requirement of strength and joint construction increase complexity, increased the cost of some than prevailing roadway plate, but that has avoided the road surface repeats to keep in repair and reduced technical requirements and standard to subgrade strengthening, whole cost can reduce by a relatively large margin, economic benefit in coastal weak soil distribution area is particularly evident, is a technology with good application value.
Description of drawings
Fig. 1 is the utility model end of the bridge chain type transition apparatus structural representation;
Fig. 2 is the connection diagram of Fig. 1 intermediate plate and cushion cap (abutment);
Fig. 3 is the layout plan that constitutes by the two row chain type transition apparatus that Fig. 1 is formed by connecting;
Fig. 4 is the A-A sectional drawing among Fig. 3;
Fig. 5 is the B-B sectional drawing among Fig. 3;
Fig. 6 is the section amplification figure that connects hinge 1 among Fig. 1;
Fig. 7 is the section amplification figure that connects hinge 2 among Fig. 1;
Fig. 8 is the profile that connects hinge 1.
Numbering is as follows among the figure:
1-carrier bar, the reservation injected hole on 1-1-carrier bar,
2-rebound, the reservation injected hole on 2-1-rebound,
3-connect hinge one, 3-1-steel column pin (hinge one), 3-2-steel pin cover (hinge one), 3-3-running clearance δ
1(hinge one), 3-4-sedimentation gap ε
1(hinge one),
4-connect hinge two, 4-1-steel column pin (hinge two), 4-2-steel pin cover (hinge two), 4-3-running clearance δ
2(cutting with scissors 2 2), 4-4-sedimentation gap ε
2(hinge two),
5-cushion cap (abutment),
6-pile foundation,
7-bridge deck,
8-prevailing roadway plate,
9-approach embankment bankets.
The specific embodiment
As shown in Figure 1, connect hinge 1 and be connected and cut with scissors 24 carrier bar 1, rebound 2 and cushion cap (abutment) 5 connected into continuous chain structure, and, utilize banket differential settlement between 9 of rotation adaptation cushion cap (abutment) 5 of hinge 1 and hinge 24 and approach embankment as corresponding road surface.
As shown in Figure 2, connect by being connected hinge 1 between cushion cap 5 and the carrier bar 1, prevent that carrier bar 1 breaks away from cushion cap 5 and falls, simultaneously, when the end of the bridge differential settlement occurring, utilize the rotation of hinge guarantee the road surface continuously and level and smooth.
As shown in Figure 3, the situation with two row chain type transition structures among the figure is an example, shows the layout that structure connects, and every row chain type transition structure is formed by connecting by Fig. 1, and each row is laid on the end of the bridge earthfill road embankment abreast as the road surface.When the broad of road surface, can correspondingly increase the columns of transition structure, separate between each row usually.
As shown in Figure 4, in except the annexation of expressing cushion cap 5 and carrier bar 1 and rebound 2, cut open show connect hinge 1 and be connected cut with scissors 24 and carrier bar 1 and rebound 2 on reservation injected hole 2-1.Wherein connect hinge 1 and be connected the 24 detailed structure section situations of cutting with scissors and see Fig. 6～7.
As shown in Figure 5, every row chain type transition structure is connected with cushion cap 5 by two secondary hinge (pin-cover) 3-1,3-2,4-1,4-2 respectively, can increase the number of hinge according to the width of plate and adjust its position distribution.Hinge (pin-cover) detailed structure section is seen Fig. 8.
As shown in Figure 6, connecting hinge 1 is the hinges that connect cushion cap 5 and carrier bar 1, and what represent among the figure is the pin hinge, is made of steel pin cover 3-2 and steel column pin 3-1, and guide is embedded among the concrete, between guide and the pin fit clearance is arranged, and can relatively rotate.Being hinged herein also can be that cylinder sliding bearing and rolling bearing etc. are hinged.Connect in the hinge running clearance 3-3 and sedimentation gap 3-4 are arranged.
As shown in Figure 7, connect hinge 24 and be the hinge that connects rebound 2 and carrier bar 1, its structure be connected cut with scissors 1 basic identical, but requiring of running clearance 4-3 and sedimentation gap 4-4 is different.
As shown in Figure 8, every secondary hinge has a pair of steel pin cover 3-2,4-2, and one of them is embedded in the concrete of cushion cap 5, and another is embedded in the concrete of carrier bar 1; Insert pin in the guide carrier bar and cushion cap are coupled together, the situation of the hinge two of connection carrier bar and rebound is identical.
As shown in Figure 1, compare with common pavement concrete plate, the carrier bar of " chain type " transition structure and the two ends of rebound have and are connected hinge, connect hinge and are made up of the steel pin and the steel pin cover (or bearing) that are embedded in concrete carrier bar and the rebound, and the fit clearance between steel pin and the steel bushing is less than 0.1mm.The thickness of carrier bar and rebound is generally 300mm, and concrete grade is C30; Carrier bar needs to require configuration reinforcement according to vehicular load, and rebound needs the arrangement reinforcing bar.Regulate for satisfying the differential settlement requirement between abutment and the embankment, is connected between carrier bar and the abutment and cuts with scissors one running clearance (referring to Fig. 6) δ
1＜2.0mm (arc section), sedimentation gap 20mm＜ε
1＜40mm (straightway); Running clearance (referring to Fig. 7) δ that is connected hinge 2 between carrier bar and the rebound
2＜2.0mm, sedimentation gap 15mm＜ε
2＜25mm (filling) with rubber strip.Reserve injected hole (referring to Fig. 3) on hinge plate and the rebound, the aperture is generally 30mm.
When being used for newly-built bridge or culvert, the construction of the construction of chain type transition structure and abutment or culvert cooperatively interacts; When being used to solve existing problem of bumping at bridge-head, need carry out corresponding transformation to abutment or culvert side wall.The job practices of carrier bar and rebound and the construction of Common Concrete Pavement are similar, for guaranteeing the gap precision between each connection, need elder generation to fix connection steel pin and guide on request, and can use the gap between plastic foam or the cardboard adjusting concrete slab, and then fluid concrete.Before the fluid concrete, shop skim drag reduction material between sub-surface and the plate bottom surface (as swell soil etc.), to reduce to impose on when the road surface sinks the horizontal pull of abutment.After treating that Embankment Subsidence is basicly stable, the injected hole cement injection mortar of utilize reserving is to eliminate concrete slab bottom surface that differential settlement causes and the gap between the embankment.At chain type transition structure end face, can lay corresponding ground surface material by the road surface requirement, but when laying the rigid pavement material, the hinged place is reserved the sedimentation shrinkage joint usually.
Claims (7)
1, a kind of end of the bridge chain type transition apparatus is characterized in that laying some chain type transition structures side by side on the end of the bridge that will eliminate differential settlement or culvert two ends embankment, and every row chain type transition structure is by carrier bar and the plurality of sections rebound is hinged forms.
2, end of the bridge chain type transition apparatus according to claim 1 is characterized in that described carrier bar one end is articulated on abutment or the cushion cap, and the other end and rebound are hinged, and is independent mutually between every row.
3, end of the bridge chain type transition apparatus according to claim 1 and 2 is characterized in that described carrier bar, rebound are armored concrete slabs, comprise various fiber concrete slabs, steel work plate or the composite panel of steel fibre.
4, end of the bridge chain type transition apparatus according to claim 1 and 2 is characterized in that describedly hingedly being that pin is hinged, cylinder sliding bearing or rolling bearing.
5, end of the bridge chain type transition apparatus according to claim 1 and 2 is characterized in that described carrier bar, rebound are armored concrete slabs, comprise various fiber concrete slabs, steel work plate or the composite panel of steel fibre; Describedly hingedly be that pin is hinged, cylinder sliding bearing or rolling bearing.
6, end of the bridge chain type transition apparatus according to claim 1 and 2, the length that it is characterized in that carrier bar is 6-8 rice, the length of rebound is 5-7 rice.
7, end of the bridge chain type transition apparatus according to claim 4 is characterized in that described pin hinge is made of steel pin cover and steel column pin, and guide is embedded among the concrete, between guide and the pin fit clearance is arranged, and can relatively rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03225929 CN2622245Y (en) | 2003-05-09 | 2003-05-09 | Bridge end chain type transitional means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03225929 CN2622245Y (en) | 2003-05-09 | 2003-05-09 | Bridge end chain type transitional means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2622245Y true CN2622245Y (en) | 2004-06-30 |
Family
ID=34246256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03225929 Expired - Fee Related CN2622245Y (en) | 2003-05-09 | 2003-05-09 | Bridge end chain type transitional means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2622245Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041759A (en) * | 2010-11-26 | 2011-05-04 | 合肥工业大学科教开发部 | Transition roadway for managing bumping at bridge-head |
| CN103122605A (en) * | 2013-03-24 | 2013-05-29 | 宁波市镇海怡福莱文化创意有限公司 | Bridge end transition slab |
| CN104631271A (en) * | 2015-01-26 | 2015-05-20 | 上海市政工程设计研究总院（集团）有限公司 | Bridge grounding section structure for removing bump at bridge head |
| CN105088936A (en) * | 2015-08-28 | 2015-11-25 | 上海市政工程设计研究总院（集团）有限公司 | Connection structure suitable for bridge differential settlement |
| CN109537440A (en) * | 2018-11-23 | 2019-03-29 | 宁波市建筑设计研究院有限公司 | A kind of abutment approach structure |
| CN112144340A (en) * | 2020-10-13 | 2020-12-29 | 福建中设工程咨询有限公司 | Prevention and control structure for vehicle bump at bridge head of highway and construction method |
-
2003
- 2003-05-09 CN CN 03225929 patent/CN2622245Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041759A (en) * | 2010-11-26 | 2011-05-04 | 合肥工业大学科教开发部 | Transition roadway for managing bumping at bridge-head |
| CN102041759B (en) * | 2010-11-26 | 2012-06-13 | 合肥工业大学科教开发部 | Transition roadway for managing bumping at bridge-head |
| CN103122605A (en) * | 2013-03-24 | 2013-05-29 | 宁波市镇海怡福莱文化创意有限公司 | Bridge end transition slab |
| CN103122605B (en) * | 2013-03-24 | 2016-03-23 | 宁波市镇海怡福莱文化创意有限公司 | A kind of transition slab at bridge head |
| CN104631271A (en) * | 2015-01-26 | 2015-05-20 | 上海市政工程设计研究总院（集团）有限公司 | Bridge grounding section structure for removing bump at bridge head |
| CN104631271B (en) * | 2015-01-26 | 2016-08-24 | 上海市政工程设计研究总院（集团）有限公司 | A kind of bridge ground section structure eliminating bumping at bridge-head |
| CN105088936A (en) * | 2015-08-28 | 2015-11-25 | 上海市政工程设计研究总院（集团）有限公司 | Connection structure suitable for bridge differential settlement |
| CN109537440A (en) * | 2018-11-23 | 2019-03-29 | 宁波市建筑设计研究院有限公司 | A kind of abutment approach structure |
| CN112144340A (en) * | 2020-10-13 | 2020-12-29 | 福建中设工程咨询有限公司 | Prevention and control structure for vehicle bump at bridge head of highway and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040630 Termination date: 20120509 |