CN209584839U - A kind of transition structure preventing and treating bumping at bridge-head - Google Patents
A kind of transition structure preventing and treating bumping at bridge-head Download PDFInfo
- Publication number
- CN209584839U CN209584839U CN201920188986.8U CN201920188986U CN209584839U CN 209584839 U CN209584839 U CN 209584839U CN 201920188986 U CN201920188986 U CN 201920188986U CN 209584839 U CN209584839 U CN 209584839U
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- China
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- abutment
- bridge
- planker
- bumping
- attachment strap
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Abstract
A kind of transition structure preventing and treating bumping at bridge-head, including beam body, the fixed installation abutment at the both ends of the beam body, planker one end is fixedly mounted in the middle part of the abutment, the planker other end is buried in roadbed, backfill is filled after the platform of the abutment with planker top, the backfill upper surface is laid with joint attachment strap component, and described joint attachment strap component one end is fixedly mounted on the outside of abutment upper end；Bearing structure is improved, it reduces backfill and occurs the fluctuating of road surface caused by differential settlement and the fracture of end of the bridge junction in use, play the role of preventing and treating bumping at bridge-head, so that comfortable when driving to backstage road surface, steady, effectively increase the safety on driving road surface, meanwhile energy-saving and environmental protection are realized by structure combination, shortens the construction period, save modular shuttering element, and precision and quality has good guarantee.
Description
Technical field
The utility model belongs to bridge bumping at bridge-head Prevention Technique field, and in particular to a kind of transition for preventing and treating bumping at bridge-head
Structure.
Background technique
Bumping at bridge-head refers to since the sedimentation etc. between the embankment after bridges and culverts structure and bridges and culverts platform is more than a certain limit value
The phenomenon that causing automobile to generate up-down vibration by wheel when the section, and this sedimentation phenomenon will affect high-grade highway just
It is often used the overall assessment with people to high-grade highway, while the up-down vibration of wheel also will affect traffic safety, speed, relax
Suitable and automobile and bridge service life.
Caused by bumping at bridge-head is the settlement difference between the embankment filled as the abutment and relative flexibility of rigid support,
Required in some viewpoints in the middle world between rigid abutment and flexible embankment plus the transition of 30-50m long, filler gradation as one sees fit by
Gradual change is finished to end of the bridge transition.Although this viewpoint and method can reduce differential settlement, alleviate bumping at bridge-head, not
Clearly specific design method is provided, is only broadly suggested to bumping at bridge-head as an independent design problem, and handle
Prevent it to generate as one of design object.In addition, domestic, also there are many increase transition slab at bridge head structure structures that experts and scholars propose
The design method made, Yu Pao supreme people's court, Bridgehead by Blastig carries out the methods of specially treated cannot be fully solved problem of bumping at bridge-head, needs
It is used together with other treatment measures.
Utility model content
Of the existing technology in order to solve the problems, such as, the utility model provides a kind of transition structure for preventing and treating bumping at bridge-head,
The structure can preferably improve highway bridge bumping at bridge-head situation, guarantee vehicle driving comfortableness and security, technical solution is such as
Under:
A kind of transition structure preventing and treating bumping at bridge-head, including beam body, the fixed installation abutment at the both ends of the beam body are described
Planker one end is fixedly mounted in the middle part of abutment, the planker other end is buried in roadbed, filled out after the platform of the abutment with planker top
Back fill course is filled, the back fill course upper surface is laid with joint attachment strap component, and bridge is fixedly mounted in described joint attachment strap component one end
On the outside of platform upper end, the joint attachment strap component other end is fixedly mounted on fixed block one end, and the fixed block fixation pours base
It is interior；
The joint attachment strap component includes prefabricated components, and the prefabricated components laterally offer reserving hole, described reserved
Hole runs through longitudinal reinforcement, opens up in the prefabricated components fluted, and integrally formed floor is evenly distributed in groove, often
Run through transverse steel between floor described in two；
The abutment lower end pours pile foundation, and the pile foundation is buried in roadbed, and the abutment includes cushion cap, the cushion cap
Upper surface is integrally formed with abutment body, and the abutment body upper end is integrally formed with abutment parados, the outside of the abutment body and abutment parados
Integrally formed with bracket, bracket upper surface combines attachment strap component lower surface distance and is greater than three meters at the abutment body, the bridge
Bracket upper surface is greater than prefabricated components thickness away from abutment parados distance at platform parados, and planker one is fixedly mounted in bracket at the abutment body
End, the bracket are steel and concrete structure.
The planker is away from integrally formed with supporting table, and supporting table lower end surface is fixed connects at the one third of other end lower surface
Friction pile top is connect, the planker is that shape is amplified in gradual change, and planker is angularly disposed.
The friction pile is laterally set in a row, the friction pile upper end reserved steel bar connector.
The front end face and rear end face of the abutment body are integrally formed with abutment sidewall, the left side upper surface of the abutment parados
Equipped with support, the support is laterally uniform, and the abutment parados offers two rows of parados anchor holes.
The width of the prefabricated components is 0.8-1.0m, and the height of the prefabricated components is 0.28-0.48m, two neighboring
It is installed with gum sleeve in the reserving hole of the prefabricated components, reserves ribbet between prefabricated components described in every two.
The roadbed upper surface is laid with base, the joint attachment strap component, base and beam body upper surface one asphalt
Coating.
Compared with prior art, the utility model has the beneficial effects that
1, the utility model structure attachment strap co-ordinative construction uses prefabricated components, and energy-saving and environmental protection shorten the construction period, save template
Component, and precision and quality has good guarantee.
2, started in terms of banket after reducing platform sedimentation and increase transition two respectively using this construction, can effectively improve and take
Road-ability at Board position plays the role of preventing and treating bumping at bridge-head.
3, connection friction pile in planker lower part has given joint one vertical support of attachment strap and its underpart back fill course, increases
The vertical rigidity in bridge end transition area, so as to reduce the design length of existing attachment strap.It bankets after abutment and platform
When generating differential settlement, since the vertical supporting of friction pile and planker acts on, the deformation for combining attachment strap is also greatly reduced, thus
The phenomenon that being effectively reduced bumping at bridge-head；The utility model is particularly suitable for the whole bridge at not set expansion joint.
4, the utility model is easy for construction, can effectively reduce after platform end bridge after head end bumping at bridge-head and platform
Head jump vehicle, so that it is comfortable when driving to backstage road surface, steady, effectively increase the safety on driving road surface.
5, in addition, using the utility model processing method, it is ensured that below attachment strap banketing can and attachment strap after roadbed one
Sedimentation is played, good integrity avoids differential settlement caused jump vehicle in end after platform；Meanwhile it being staggeredly laid with steel modeling grid layer and mentioning significantly
The high globality of roadbed, reduces the sedimentation value of roadbed, also just reduces the rotational value of attachment strap head end, avoid attachment strap head end
Vehicle bump at bridge ends.
6, improve the hypodynamic problem of foundation bearing；Composite road bed, change roadbed holding force feature, reduction pavement loading are set
Effect to roadbed enhances the bearing capacity and intensity of roadbed, reduces settlement of subgrade；Planker itself is held because of structure sheaf itself
It is high to carry power, durability is good, guarantees main supporting course of the end of the bridge transition as short subgrade and pavement, can reduce because of Subgrade Compaction deficiency
Lead to non-uniform sedimentation and deformation, prevents the damage phenomenon generated due to pavement structure by unbalance stress.Meanwhile planker is oblique
Setting can make subgrade settlement gradually transition, can well be connected effect with works such as the bridges at roadbed both ends.
Detailed description of the invention
Fig. 1 is that the utility model applies the structural schematic diagram in whole bridge；
Fig. 2 is that the utility model abutment three-dimensional shows left side structure schematic diagram；
Fig. 3 is that the utility model abutment three-dimensional shows right side structure schematic diagram；
Fig. 4 is that the utility model combines attachment strap schematic three dimensional views；
Fig. 5 is that the utility model combines attachment strap cross-sectional configuration schematic diagram；
Fig. 6 is the utility model prefabricated components three dimensional structure diagram；
Fig. 7 is the utility model prefabricated components cross-sectional configuration schematic diagram.
Wherein: 1, joint attachment strap component, 2, beam body, 3, fixed block, 4, base, 5, longitudinal reinforcement, 6, parados anchor hole, 7,
Floor, 8, cast-in-place concrete, 9, abutment sidewall, 10, gum sleeve, 11, ribbet, 12, pitch coating, 13, back fill course,
14, prefabricated components, 15, transverse steel, 16, abutment, 17, abutment body, 18, roadbed, 19, planker, 20, friction pile, 21, cushion cap, 22,
Pile foundation, 23, bracket, 24, support, 25, abutment parados, 26, reserving hole.
Specific embodiment
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.
If Fig. 1 to Fig. 7 shows, the utility model provides a kind of transition structure for preventing and treating bumping at bridge-head:
A kind of transition structure preventing and treating bumping at bridge-head, including beam body 2, are the main structure body of bridge, are prolonged at both ends
It stretches, it is characterised in that: the fixed installation abutment 16 at the both ends of the beam body 2 is an integral molding structure, holds to beam body 2
Limit, and connection joint attachment strap component 1 are carried, so that joint attachment strap component 1 and beam body 2 avoid the occurrence of dislocation offset, the abutment
19 one end of planker is fixedly mounted in 16 middle part lateral walls, carries out effectively segmentation support to original backfill structure by self structure,
The influence of bulk settling bring pavement-height variation is reduced, 19 other end of planker is buried in roadbed 18, is realized to planker
19 effective support, avoids planker 19 from cantilever support occur, while enabling planker 19 to following the sedimentation of roadbed 18 to be sunk
Drop, avoids the occurrence of sedimentation tomography, road surface is caused to rise and fall, and fills back fill course 13 with 19 top of planker after the platform of the abutment 16,
19 upper end space of planker is filled, increases the bearing strength of planker 19, while to the joint attachment strap structure that its upper surface is laid with
Part 1 is carried, and 13 upper surface of back fill course is laid with joint attachment strap component 1, using joint package assembly, is avoided original
It is broken caused by integrated carrying mode, so that inhomogeneities sedimentation occurs for road surface, causes bumping at bridge-head, the joint attachment strap component
1 one end is fixedly mounted on the outside of 16 upper end of abutment, realizes effective installation of joint attachment strap component 1, guarantees its transition extension effect, institute
It states 1 other end of joint attachment strap component and is fixedly mounted on 3 one end of fixed block, increase the stable connection of joint attachment strap component 1 and base 4
Property, the fixed block 3 is fixed to be cast in base 4, and base 4 is the bearing structure that secondary laying is carried out on roadbed 18, increases road
The bearing capacity of base 18；
The joint attachment strap component 1 include prefabricated components 14, for combine attachment strap component basic composed structure, according to required
The length of joint attachment strap component 1 determines usage quantity, by the segmentation load of multiple prefabricated components 14, realizes that effective load passes
It passs, the prefabricated components 14 laterally offer reserving hole 26, and interspersed for longitudinal reinforcement 5 provides installation station, described reserved
Hole 26 runs through longitudinal reinforcement 5, is effectively combined by interspersed to single prefabricated components 14, constitutes whole combining and take
Board member 1, while transmitting is able to carry out by the load that longitudinal reinforcement 5 is subject to single prefabricated components 14, realize unloading, institute
It states and opens up fluted in prefabricated components 14, and be evenly distributed in groove integrally formed with floor 7, to the slot on prefabricated components 14
Body is split, so that groove body side wall is able to bear certain shearing load, while facilitating the concreting at the scene of progress, institute
It states through transverse steel 15 between floor 7, several floors 7 is subjected to effective entire combination, increase bearing capacity；
16 lower end of abutment pours pile foundation 22, and the pile foundation 22 is buried in roadbed 18, is abutment 16 and upper part
The structure of installation carries out itself carrying, while abutment 16 being fixed by self structure characteristic, and the abutment 16 includes holding
Platform 21 provides bearing space for the molding of the abutment body 17 and abutment sidewall 9 of upper end, at the same by its ductility by load to roadbed
18 are distinguished, and 21 upper end of cushion cap is integrally formed abutment body 17, for thereon bracket 23 and abutment parados 25 form and base be provided
Plinth forms bearing structure, while the load of abutment parados 25 and bracket 23 being transmitted downwards, and 17 upper end of abutment body is integrally formed
Abutment parados 25 is attached fixation to joint attachment strap component 1 by self structure, while being carried, the abutment body 17 with
The outside of abutment parados 25 is integrally formed with bracket, and 23 upper surface of bracket is away from joint 1 following table of attachment strap component at the abutment body 17
Identity distance guarantees the thickness of back fill course 13 from being greater than three meters, then reduces after joint attachment strap component 1 carries and directly makes to planker 19
At load impacting, bracket upper surface is greater than 1 thickness of prefabricated components away from 25 upper end of abutment parados distance at the abutment parados 25, is
Roadbed paving bearing bed provides space, and one end of planker 19 is fixedly mounted in bracket 23 at the abutment body 17, is the thin end of planker 19
Installation foundation is provided, while load suffered by planker 19 being transmitted to abutment body 17, reduces the load capacity that planker 19 is born,
Then extend certain service life, the bracket 23 is steel and concrete structure, increases its bearing capacity.
The planker 19 away from the one third of other end lower surface integrally formed with supporting table, to the support of friction column 20 into
The distribution of row load, avoids 20 local support of friction column that stress is caused to concentrate, and damages planker 19, and supporting table lower end surface is fixedly connected
20 top of friction pile realizes effective assembling, while the load that planker 19 is born being exported downwards, and to planker 19 and thereon
The back fill course 13 in portion and joint attachment strap component 1 provide support, and the planker 19 is that shape is amplified in gradual change, and planker 19 is oblique sets
It sets, to guarantee that the planker later period can be good at being embedded in back fill course 13.
The friction pile 20 is laterally set in a row, guarantees the uniformity of load distribution, while increasing vertical load-bearing rigidity, institute
20 upper end reserved steel bar connector of friction pile is stated, guarantees the stability that friction column 20 is connect with mop 19.
The front end face of the abutment body 17 and rear end face integrally formed with abutment sidewall 9, to beam body 2 with combine attachment strap component
1 carries out whole limit, avoids that relative dislocation occurs, and causes connection fracture, the left side upper surface of the abutment parados 25 has
Support 24, the support 24 is laterally uniform, and the abutment parados 25 offers two rows of parados anchor holes 6, is longitudinal reinforcement 5
It connects abutment parados 25 and fixed installation basis is provided, facilitate progress concrete further pours fixation.
The width of the prefabricated components 14 is 0.8-1.0m, and the height of the prefabricated components 14 is 0.28-0.48m, pre-
The width of component 14 processed and height by needing the length of connection attachment strap component 1 to be used to be determined, it is two neighboring described in
It is installed with gum sleeve 10 in the reserving hole 26 of prefabricated components, exposed section is connected to longitudinal reinforcement 5 and is protected, water flow is avoided to soak
Erosion extends the service life of longitudinal reinforcement 5, reserves ribbet 11 between prefabricated components 14 described in every two, facilitates prefabricated components
14 placement, adjustment and transport.
18 upper surface of roadbed is laid with base 4, increases the bearing capacity of roadbed 18, reduces sedimentation bring road surface and rises and falls
Variation, 12 upper surface one asphalt coating 12 of the joint attachment strap component 1, base 4 and beam body.
Above embodiments are only to illustrate the technical solution of the utility model rather than its limitations, although referring to above-mentioned implementation
The utility model is described in detail in example, and the those of ordinary skill in field is it is understood that still can be to the utility model
Specific embodiment be modified or replaced equivalently, and any modification without departing from the spirit and scope of the utility model or
Equivalent replacement should all cover in present claims range.
Claims (6)
1. a kind of transition structure for preventing and treating bumping at bridge-head, including beam body, which is characterized in that the fixed installation at the both ends of the beam body
Planker one end is fixedly mounted in the middle part of the abutment in abutment, and the planker other end is buried in roadbed, after the platform of the abutment with drag
Back fill course is filled on plate top, and the back fill course upper surface is laid with joint attachment strap component, and described joint attachment strap component one end is solid
Dingan County fills on the outside of abutment upper end, and the joint attachment strap component other end is fixedly mounted on fixed block one end, and the fixed block is fixed
It pours in base；
The joint attachment strap component includes prefabricated components, and the prefabricated components laterally offer reserving hole, the reserving hole
It through longitudinal reinforcement, opens up fluted in the prefabricated components, and is evenly distributed with integrally formed floor, every two in groove
Run through transverse steel between the floor；
The abutment lower end pours pile foundation, and the pile foundation is buried in roadbed, and the abutment includes cushion cap, the cushion cap upper end
Face is integrally formed with abutment body, and integrally formed with abutment parados, the outside of the abutment body and abutment parados is uniform for the abutment body upper end
Body formed to have bracket, bracket upper surface combines attachment strap component lower surface distance and is greater than three meters at the abutment body, the Abutment Back
Bracket upper surface is greater than prefabricated components thickness away from abutment parados distance at wall, and planker one end is fixedly mounted in bracket at the abutment body,
The bracket is steel and concrete structure.
2. a kind of transition structure for preventing and treating bumping at bridge-head according to claim 1, which is characterized in that the planker is away from another
It holds at the one third of lower surface integrally formed with supporting table, and supporting table lower end surface is fixedly connected with friction pile top, the planker
Amplify shape for gradual change, and planker is angularly disposed.
3. a kind of transition structure for preventing and treating bumping at bridge-head according to claim 2, which is characterized in that the friction pile is lateral
It sets in a row, the friction pile upper end reserved steel bar connector.
4. a kind of transition structure for preventing and treating bumping at bridge-head according to claim 1, which is characterized in that the front end of the abutment body
Face and rear end face are integrally formed with abutment sidewall, and the left side upper surface of the abutment parados is equipped with support, and the support is lateral
It is uniformly distributed, the abutment parados offers two rows of parados anchor holes.
5. a kind of transition structure for preventing and treating bumping at bridge-head according to claim 1, which is characterized in that the prefabricated components
Width is 0.8-1.0m, and the height of the prefabricated components is 0.28-0.48m, the preformed hole of the two neighboring prefabricated components
It is installed with gum sleeve in hole, reserves ribbet between prefabricated components described in every two.
6. a kind of transition structure for preventing and treating bumping at bridge-head according to claim 1, which is characterized in that the roadbed upper surface
It is laid with base, the joint attachment strap component, base and beam body upper surface one asphalt coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920188986.8U CN209584839U (en) | 2019-01-31 | 2019-01-31 | A kind of transition structure preventing and treating bumping at bridge-head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920188986.8U CN209584839U (en) | 2019-01-31 | 2019-01-31 | A kind of transition structure preventing and treating bumping at bridge-head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209584839U true CN209584839U (en) | 2019-11-05 |
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ID=68354169
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920188986.8U Expired - Fee Related CN209584839U (en) | 2019-01-31 | 2019-01-31 | A kind of transition structure preventing and treating bumping at bridge-head |
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|---|---|
| CN (1) | CN209584839U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853381A (en) * | 2019-01-31 | 2019-06-07 | 沈阳建筑大学 | A kind of transition structure and its construction method preventing and treating bumping at bridge-head |
| CN110835885A (en) * | 2019-12-02 | 2020-02-25 | 中冶南方工程技术有限公司 | Bridgehead butt strap structure with adjustable warp |
| CN112252159A (en) * | 2020-10-24 | 2021-01-22 | 惠州大亚湾市政基础设施有限公司 | Bridge and pavement integrated construction structure and construction method |
-
2019
- 2019-01-31 CN CN201920188986.8U patent/CN209584839U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853381A (en) * | 2019-01-31 | 2019-06-07 | 沈阳建筑大学 | A kind of transition structure and its construction method preventing and treating bumping at bridge-head |
| CN109853381B (en) * | 2019-01-31 | 2024-03-05 | 沈阳建筑大学 | Transitional structure for preventing bridge head from jumping and construction method thereof |
| CN110835885A (en) * | 2019-12-02 | 2020-02-25 | 中冶南方工程技术有限公司 | Bridgehead butt strap structure with adjustable warp |
| CN112252159A (en) * | 2020-10-24 | 2021-01-22 | 惠州大亚湾市政基础设施有限公司 | Bridge and pavement integrated construction structure and construction method |
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| GR01 | Patent grant | ||
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| 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: 20191105 Termination date: 20210131 |