CN2533153Y - Bridge approach capable of preventing car from skipping - Google Patents
Bridge approach capable of preventing car from skipping Download PDFInfo
- Publication number
- CN2533153Y CN2533153Y CN 02216296 CN02216296U CN2533153Y CN 2533153 Y CN2533153 Y CN 2533153Y CN 02216296 CN02216296 CN 02216296 CN 02216296 U CN02216296 U CN 02216296U CN 2533153 Y CN2533153 Y CN 2533153Y
- Authority
- CN
- China
- Prior art keywords
- bridge
- abutment
- attachment strap
- utility
- model
- 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 - Lifetime
Links
Images
Abstract
The utility model relates to a bridge approach capable of preventing car from skipping which belongs to bridge head contacting slope technical field. The utility model comprises a bridge abutment, a main beam, a butt plate and a sleeper beam. The main beam is arranged on the bridge abutment which is on the bridge abutment stake. Deck paving is proved on the main beam. Meanwhile, the butt plate is arranged between the sleeper beam and the bridge abutment. The sleeper beam is on the hardcore bed and rubbles. The butt plate is under the bridge head road section. The utility model is characterized in that the butt plate is semi arch bow typed butt plate. The utility model has the function of fogging the dividing line between road and bridge. After being practiced of over one year, the initially indicated effect is extremely obvious. The phenomenon of car skipping is basically eliminated. The utility model has high practical value and wide application value.
Description
Technical field
The utility model relates to the technical field that a kind of end of the bridge connects the slope.
Background technology
Bumping at bridge-head has certain harmfulness, and the basic reason that produces bumping at bridge-head is that the relative settlement of road and bridge causes road and bridge faulting of slab ends (not establishing the situation of attachment strap) to occur or make end of the bridge connect sloping longitudinal gradient increasing (establishing the situation of attachment strap).According to test, when faulting of slab ends surpasses 1.5 centimetres or longitudinal gradient change value and surpasses 8 ‰, will feel tangible jumping car phenomenon.The harmfulness of bumping at bridge-head mainly contains: when (1) walked to the steep bank of end of the bridge (faulting of slab ends) when vehicle, for preventing fiercely beating of vehicle, the driver was forced to brake deceleration, has reduced the function of use of road.(2) because bumping at bridge-head jolts vehicle, cause passenger and driver's discomfort.Simultaneously, the driver is produced quite disadvantageous psychological impact.Also can influence normal running when serious, cause driving accident vehicle.(3) because beating of producing during by end of the bridge of vehicle and impacting, thereby bridge and road are caused additional impact load, quickened the damage at abutment, transition slab at bridge head, bearing and shrinkage joint.The wearing and tearing of the parts, tire etc. of vehicle have also been aggravated simultaneously, the application life of having reduced vehicle.Generation road and bridge differential settlement mainly contains following reason: 1, bridge foundation mostly adopts bored pile, and its settling amount is minimum, can ignore for the sedimentation of pavement of road.2, soft clay area, as the urban district, Ningbo, engineering geological conditions is very poor, and the weak soil cladding thickness surpasses 60m, and some areas surpass 80m, belong to the weak place of III～IV class soil.Particularly under the face of land of thickness 1～2m crust layer (soft plastic isabelline clay), weak substratum is arranged, it is thick to be 10～20m, belongs to high-compressibility grey mud and silt clay, silty clay, and stream is moulded, and natural moisture content can reach 40～60%, and the coefficient that contracts can reach a
1-2=0.8～1.3MP
a -1, so weak soil layer, externally under Chao Zai the long term, its compress variation can reach tens centimetres, even tens centimetres.3, banket behind the platform itself compressive strain.Owing to be subjected to the restriction of abutment, road roller to platform after the effect that rolls of high fill greatly weaken, local in addition roll less than, add that construction control is not in place sometimes, make that high fill not only compresses soft base behind the platform, and self produce compressive strain, increased the weight of roadbed subsidence.4, do not adopt an effective measure the road and bridge differential settlements is reduced to a minimum, and in suitable distance, make this differential settlement obtain smooth-going gradual change.Shown in the accompanying drawing 1 is not deal with end of the bridge in early days to connect the slope, and among Fig. 1, dotted line is represented the road surface after the end of the bridge sedimentation, top solid line is the design road surface, and expression end of the bridge faulting of slab ends has certain value in the imaginary circle line, 1 expression abutment, 2 expression abutment stakes, 3 expression girders, 4 expression deck pavings, 5 expression original grounds, connect the slope at end of the bridge, form tangible road and bridge faulting of slab ends at the end of the bridge place, when vehicle by the time, will produce the fierce car of jumping.Shown in the accompanying drawing 2 is the end of the bridge situation that is provided with the flush system attachment strap, among Fig. 2, dotted line is represented the road surface after the end of the bridge sedimentation, above solid line be the design road surface, in the imaginary circle line expression road surface spur point or concave point are arranged, 1 expression abutment, 2 expression abutment stakes, 3 expression girders, 4 expression deck pavings, 5 expression original grounds, 6 expression flush system attachment straps, No. 25 concrete sleeper beams of 7 expressions, No. 5 cemented rocks of 8 expressions, 9 expressions, 10 cm thick hardcore beds, though be provided with the flush system attachment strap, eliminated the road and bridge faulting of slab ends, the end of the bridge condition of being open to traffic is had some improvement, but because the sinking of sleeper beam, produced recessed and wedge angle epirelief at the attachment strap two ends, made the road surface in very short distance, form peak valley, when vehicle passes through, still can produce continuous chattering, although amplitude reduces to some extent.
Summary of the invention
Technical problem to be solved in the utility model is that a kind of rigidity sudden change of not only eliminating road and bridge is provided at prior art, also guaranteed the gradual change that the road and bridge relative settlement changes, realized the reasonable transition between soft base under the high fill behind abutment pile foundation and the platform, play fuzzy road and bridge boundary effect, thereby eliminate the bumping at bridge-head phenomenon basically, and the end of the bridge of the fairly obvious anti-jump car of effect connects the slope.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: the end of the bridge of the anti-jump car of this kind connects the slope, it includes abutment, girder, attachment strap and sleeper beam, abutment on the abutment stake is mounted with girder, deck paving is arranged above the girder, be provided with attachment strap between sleeper beam on hardcore bed and the abutment simultaneously, attachment strap is characterized in that described attachment strap is a semiarch formula arc attachment strap below the end of the bridge highway section.
Above-mentioned arc attachment strap adopts circular arc, and its curve half warp is R=(H
2+ L
2)/2H, H are the depth of fill behind the platform, and L is a column plate length.
Compared with prior art, advantage of the present utility model is: be provided with the arc transition slab at bridge head, not only eliminate the rigidity sudden change of road and bridge, also guaranteed the gradual change of the sedimentation variation of road and bridge differences, realized the reasonable transition between soft base under the high fill behind abutment pile foundation and the platform, played fuzzy road and bridge boundary effect, through practice more than a year, show that tentatively effect is fairly obvious, basically eliminate the bumping at bridge-head phenomenon, structure is also fairly simple, implements easily, have very high real value, be worthy of popularization.
Description of drawings
Fig. 1 does not establish attachment strap abutment elevation;
Fig. 2 flush system attachment strap abutment elevation;
Fig. 3 arc attachment strap abutment elevation;
Fig. 4 arc attachment strap abutment calculates schematic diagram.
The specific embodiment
Below in conjunction with description of drawings embodiment of the present utility model is described in further detail.
As Fig. 3,4 signals, the end of the bridge structure of the anti-jump car of this kind, it includes abutment 1, girder 3, attachment strap 6 and No. 25 concrete sleeper beams 7,5 expression original grounds, the abutment 1 on abutment stake 2 is mounted with girder 3, and deck paving 4 is arranged above the girder, be provided with attachment strap 6 between sleeper beam 7 on 10 cm thick hardcore beds 9 and the abutment 1 simultaneously, attachment strap is below the end of the bridge highway section, and attachment strap is at abutment and sleeper beam lay-down location pad four oily three felts, and this attachment strap is a semiarch formula arc attachment strap.For fear of producing excessive sedimentation, depth of fill H is controlled at 3 meters according to practical experience and is advisable with interior behind the platform, and the attachment strap length L can not obtain too shortly simultaneously, otherwise will produce excessive depression at the sleeper beam place, does not reach ideal effect.Rule of thumb, the attachment strap length L according to platform after depth of fill H according to the form below value comparatively suitable:
The relation of the depth of fill and attachment strap length
| Depth of fill H (m) behind the platform | ＜1.0 | 1-1.5 | 1.5-2 | 2-2.5 | 2.5-3 |
| Attachment strap length L (m) | 5 | 6 | 7 | 7.5 | 8 |
The arc attachment strap generally adopts circular arc, and after depth of fill H determined after the attachment strap length L is according to platform, referring to Fig. 4, h represented the road structure layer thickness, and its curvature half is through just passing through R for R
2=L
2+ (R-H)
2, obtain R=(H
2+ L
2)/2H, H are the depth of fill behind the platform, and L is a column plate length.Can calculate comparatively accurately by elastic foundation plate the arc attachment strap.Have only appropriate design sleeper beam basis, could guarantee the function performance of arc column plate, guarantee the smooth-going transition gradual change of road and bridge sedimentation, the general suitable σ that gets
1=(1.1-1.2) σ
2, σ wherein
1Be the uniform stress that sleeper beam outside road segment segment ground is born, σ
2Be the uniform stress that is born on the ground under the sleeper beam, work as σ
2Bigger than normal, i.e. σ
1＜(1.1-1.2) σ
2The time, consolidation process should be carried out in the sleeper beam basis, adopts long 8-12 rice Φ 50 cement mixing piles 14 to carry out consolidation process as the soft base in the abutment back, forms composite foundation, to improve the σ of composite foundation
2, guarantee to connect the smooth-going transition of sloping sedimentation, and obtain good driving condition.It above the arc attachment strap road structure layer 10, the cement stabilizing layer 11 and the rammer that are followed successively by 10 cm thicks are below filled out medium-sand seam 12, graded broken stone layer 13, here banket behind the platform and no longer adopt flyash, but in thick yellow sand, it is low price not only, and as easy as rolling off a log shake draws closely knitly, is easy to solve the roadbed subsidence problem that the compressibilty of backfill is brought, and banketing behind the platform requires compaction in layers.Every layer thickness is not more than 30 centimetres, and compactness requires more than 95%, and the speed of banketing behind the console adheres to that road and bridge connect the construction the earliest of slope slope section and principle that its supercrust is constructed the latest, and settlement of soft foundation is as often as possible finished before end of the bridge connects sloping pavement construction.Arc attachment strap cast-in-site is because its facade is a circular arc, so should pay attention to reinforcing bar location and concrete pouring quality.
Practice shows, adopts above end of the bridge structure can prevent to jump car phenomenon, respond well effectively.Adopt the end of the bridge of No. 3 bridges in the bright road of good fortune, No. 7 bridges in high parish, Ningbo of this structure to connect sloping sedimentation in Ningbo area and detect, settling amount is in the 0.1-2.9 cm range, and change of longitudinal grade is in 4 ‰, and through sport car experiment on the spot, driving does not steadily have the car of jumping sensation.
Claims (3)
1, a kind of end of the bridge of anti-jump car connects the slope, it includes abutment (1), girder (3), attachment strap (6) and sleeper beam (7), abutment (1) on abutment stake (2) is mounted with girder (3), deck paving (4) is arranged above the girder, be provided with attachment strap (6) between sleeper beam (7) on hardcore bed (9) and the abutment (1) simultaneously, attachment strap is characterized in that described attachment strap (6) is a semiarch formula arc attachment strap below the end of the bridge highway section.
2, end of the bridge according to claim 1 connects the slope, it is characterized in that described arc attachment strap adopts circular arc, and its curvature half warp is R=(H
2+ L
2)/2H, H are the depth of fill behind the platform, and L is a column plate length.
3, end of the bridge according to claim 2 connects the slope, it is characterized in that described H be behind the platform depth of fill and L be the relation of column plate length be preferably when the H value be respectively＜1.0, when 1-1.5,1.5-2,2-2.5,2.5-3 rice scope, the L value corresponds to 5,6,7,7.5,8 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02216296 CN2533153Y (en) | 2002-03-20 | 2002-03-20 | Bridge approach capable of preventing car from skipping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02216296 CN2533153Y (en) | 2002-03-20 | 2002-03-20 | Bridge approach capable of preventing car from skipping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2533153Y true CN2533153Y (en) | 2003-01-29 |
Family
ID=33695307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02216296 Expired - Lifetime CN2533153Y (en) | 2002-03-20 | 2002-03-20 | Bridge approach capable of preventing car from skipping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2533153Y (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967794A (en) * | 2010-09-18 | 2011-02-09 | 余闯 | New technology for treating vehicle bump at bridge ends |
| 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 |
| CN102251482A (en) * | 2011-05-10 | 2011-11-23 | 吴江市明港道桥工程有限公司 | Construction method for connection part of bridge lapping slab and cement stabilized base |
| CN102704388A (en) * | 2012-06-19 | 2012-10-03 | 福州大学 | Anti-seismic and anti-flood semi-integral abutment seamless bridge and construction method thereof |
| 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 |
| 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 |
| CN103614961B (en) * | 2013-12-12 | 2015-06-10 | 西藏大学农牧学院 | Stepped reinforced concrete slab capable of preventing abutment vehicle skips and construction method |
| CN105862595A (en) * | 2015-01-20 | 2016-08-17 | 任丘市永基建筑安装工程有限公司 | Construction technology of connecting abutment back of steel bridge and road |
| CN105887657A (en) * | 2014-08-22 | 2016-08-24 | 钱久军 | Soft foundation road and bridge connecting slope two-dimensional prestressing elastic shell plate application technology |
| CN106480821A (en) * | 2016-12-20 | 2017-03-08 | 福州大学 | A kind of end is using seamless bridge neotectonics and its construction method of arc attachment strap |
| CN108103923A (en) * | 2017-12-01 | 2018-06-01 | 浙江工业大学 | A kind of anti-bumping at bridge-head device of bridge |
| CN108301306A (en) * | 2018-04-02 | 2018-07-20 | 广东中天市政工程设计有限公司 | Midway half-bridge structure |
| CN108316128A (en) * | 2018-01-09 | 2018-07-24 | 山西大学 | A kind of novel road bridge attachment strap structure and its construction method |
| KR101929161B1 (en) * | 2018-07-14 | 2018-12-13 | 이현웅 | Method for Reparing Lateral Flow of Bridge Abutments |
| CN108999045A (en) * | 2018-09-29 | 2018-12-14 | 中冶南方工程技术有限公司 | A kind of subgrade strengthening structure and its construction method preventing and treating bumping at bridge-head |
| KR101973657B1 (en) * | 2018-08-27 | 2019-08-26 | (주)테르자기 | Inverted Arcuate Structure to prevent Lateral Flow of the Bridge Abutments and Reparing Method using the Same |
| KR20200000289A (en) * | 2018-06-22 | 2020-01-02 | 이현웅 | Arcuate Structure Constructed Outside Bridge Abutments Without Embankment to Prevent Lateral Flow of the Bridge Abutments |
-
2002
- 2002-03-20 CN CN 02216296 patent/CN2533153Y/en not_active Expired - Lifetime
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967794B (en) * | 2010-09-18 | 2012-07-04 | 余闯 | New technology for treating vehicle bump at bridge ends |
| CN101967794A (en) * | 2010-09-18 | 2011-02-09 | 余闯 | New technology for treating vehicle bump at bridge ends |
| 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 |
| CN102251482A (en) * | 2011-05-10 | 2011-11-23 | 吴江市明港道桥工程有限公司 | Construction method for connection part of bridge lapping slab and cement stabilized base |
| CN102704388A (en) * | 2012-06-19 | 2012-10-03 | 福州大学 | Anti-seismic and anti-flood semi-integral abutment seamless bridge and construction method thereof |
| 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 |
| CN103614961B (en) * | 2013-12-12 | 2015-06-10 | 西藏大学农牧学院 | Stepped reinforced concrete slab capable of preventing abutment vehicle skips and construction method |
| CN105887657A (en) * | 2014-08-22 | 2016-08-24 | 钱久军 | Soft foundation road and bridge connecting slope two-dimensional prestressing elastic shell plate application technology |
| 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 |
| 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 |
| CN105862595A (en) * | 2015-01-20 | 2016-08-17 | 任丘市永基建筑安装工程有限公司 | Construction technology of connecting abutment back of steel bridge and road |
| CN106480821A (en) * | 2016-12-20 | 2017-03-08 | 福州大学 | A kind of end is using seamless bridge neotectonics and its construction method of arc attachment strap |
| CN106480821B (en) * | 2016-12-20 | 2018-03-16 | 福州大学 | A kind of end is constructed using the seamless bridge of arc attachment strap and its construction method |
| CN108103923A (en) * | 2017-12-01 | 2018-06-01 | 浙江工业大学 | A kind of anti-bumping at bridge-head device of bridge |
| CN108316128A (en) * | 2018-01-09 | 2018-07-24 | 山西大学 | A kind of novel road bridge attachment strap structure and its construction method |
| CN108301306A (en) * | 2018-04-02 | 2018-07-20 | 广东中天市政工程设计有限公司 | Midway half-bridge structure |
| CN108301306B (en) * | 2018-04-02 | 2024-02-27 | 广东中天市政工程设计有限公司 | Half-way half-bridge structure |
| KR20200000289A (en) * | 2018-06-22 | 2020-01-02 | 이현웅 | Arcuate Structure Constructed Outside Bridge Abutments Without Embankment to Prevent Lateral Flow of the Bridge Abutments |
| KR102119365B1 (en) | 2018-06-22 | 2020-06-04 | 이현웅 | Arcuate Structure Constructed Outside Bridge Abutments Without Embankment to Prevent Lateral Flow of the Bridge Abutments |
| KR101929161B1 (en) * | 2018-07-14 | 2018-12-13 | 이현웅 | Method for Reparing Lateral Flow of Bridge Abutments |
| KR101973657B1 (en) * | 2018-08-27 | 2019-08-26 | (주)테르자기 | Inverted Arcuate Structure to prevent Lateral Flow of the Bridge Abutments and Reparing Method using the Same |
| CN108999045A (en) * | 2018-09-29 | 2018-12-14 | 中冶南方工程技术有限公司 | A kind of subgrade strengthening structure and its construction method preventing and treating bumping at bridge-head |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2533153Y (en) | Bridge approach capable of preventing car from skipping | |
| CN105887587B (en) | A kind of low circuit switch area of putting of medium-and low-speed maglev is with non-switch area transition section structure | |
| CN103321118B (en) | Bridge road transition section roadbed structure of deep layer yielding ground regions | |
| CN203174453U (en) | Light-mass embankment structure for managing bump at bridge head | |
| CN106192646B (en) | Vcehicular tunnel car-driving shock-absorbing denoising structure and its construction method | |
| CN101144256B (en) | Slag-free orbit reinforced concrete pile net structure roadbed and construction method thereof | |
| CN205530114U (en) | To drawing formula steel pipe sheet pile wharf structure | |
| CN201095716Y (en) | Slag-free orbit reinforced concrete pile net structure roadbed | |
| CN107841913B (en) | A kind of anti-settling roadbed construction method | |
| CN102677584B (en) | Mounting structure of abutment butt strap | |
| CN201924249U (en) | Transition roadbed for dealing with vehicle bump | |
| CN107761497B (en) | A kind of anti-settling road structure | |
| CN101974871A (en) | Short roadbed transition section structure between culverts of high speed railway | |
| CN208884299U (en) | A kind of anti-pavement deflection formula porous pavement | |
| CN111441209A (en) | Device applied to bridge head vehicle jumping in soft soil area and rapid treatment method thereof | |
| CN208183459U (en) | Under wear the embankment structures of both wired bridges | |
| CN204780566U (en) | Eliminate either end of a bridge and jump bridge ground connection segment structure of car | |
| CN107858886B (en) | Viaduct foundation peripheral ground road and construction method thereof | |
| CN212247714U (en) | Be applied to device of soft soil area bridgehead car skip | |
| CN110144784A (en) | The town road and its construction method constructed based on prestressed concrete plate stake | |
| CN206127852U (en) | Dark bridge of filling out bed course disconnect -type foundation structure is traded in adoption | |
| CN216712709U (en) | Structure for weakening bumping problem at bridge head | |
| CN215289522U (en) | Anti-rutting composite pavement structure suitable for heavy-load traffic intersection | |
| CN204589783U (en) | A kind of complete board type small culvert of applicable soft foundation | |
| CN216999112U (en) | Highway subgrade reinforced structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NINGBO CITY BUILDING DESIGNING INSTITUTE Free format text: FORMER NAME OR ADDRESS: URBAN CONSTRUCTION DESIGN INST., NINGBO CITY |
|
| CP03 | Change of name, title or address |
Address after: 315012 No. 142, Lane 98, meteorological Road, Zhejiang, Ningbo, China Patentee after: Ningbo urban construction design and Research Institute Address before: 315010, 75 Ting Ting Street, Zhejiang, Ningbo Patentee before: Urban Construction Design Inst., Ningbo City |
|
| C56 | Change in the name or address of the patentee |
Owner name: NINGBO CITY BUILDING DESIGNING INSTITUTE CO., LTD. Free format text: FORMER NAME OR ADDRESS: NINGBO CITY BUILDING DESIGNING INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 315012 No. 142, Lane 98, meteorological Road, Zhejiang, Ningbo, China Patentee after: Ningbo urban construction design & Research Institute Co Ltd Address before: 315012 No. 142, Lane 98, meteorological Road, Zhejiang, Ningbo, China Patentee before: Ningbo urban construction design and Research Institute |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120320 Granted publication date: 20030129 |