CN203684076U - Bridge pier formed by splicing prefabricated steel fiber self-compacting concrete segments - Google Patents
Bridge pier formed by splicing prefabricated steel fiber self-compacting concrete segments Download PDFInfo
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- CN203684076U CN203684076U CN201420051245.2U CN201420051245U CN203684076U CN 203684076 U CN203684076 U CN 203684076U CN 201420051245 U CN201420051245 U CN 201420051245U CN 203684076 U CN203684076 U CN 203684076U
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Abstract
The utility model discloses a bridge pier formed by splicing prefabricated steel fiber self-compacting concrete segments. The bridge pier comprises a pile cap. The pile cap is provided with a pier body, the pier body is formed by multiple prefabricated steel fiber concrete segments which are mutually connected, prestress hole channels are pre-buried inside the prefabricated segments, prestress steel bars penetrate through the prestress hole channels, and the adjacent prefabricated segments are assembled in the mode that joints of short steel bars are inserted. When the bridge pier formed in the mode is stressed and deforms, a part of energy can be consumed, shock resistance, pier body energy consumption performance, post-earthquake repair perforamnce of potential plastic hinge regions among the segments and other earthquake region power performance of the whole bridge pier can be excellent, and the bridge pier can be used for construction of bridge pier columns in earthquake regions.
Description
Technical field
The utility model relates to bridge construction field, and a kind of Steel Fiber Reinforced Self-compacting Concrete that utilizes of special design is prepared the bridge pier that Precast Concrete Segmental Bridges forms.
Background technology
At present, the pier stud that bridge substructure adopts, adopts ordinary reinforced concrete structure more, is made up of ordinary concrete, reinforcing bar.In the time of construction, need assembling reinforcement at the scene, template is set, builds commercial concrete, after maintenance, reach instructions for use.Field operation requires larger place to place material and template, when concreting, need manually vibrate and guarantee compactness, the intensive joint area of reinforcing bar is built and often owed closely knit, the steel and concrete structure pier stud of finished product is in the time being subject to Moment, easy to crack, thereby causes pier stud durability to decline.
For addressing this problem, start to adopt the assembled Bridge Pier Structure System of precast segment both at home and abroad.The structural system of the assembled bridge pier of precast segment is completely at precasting yard processing and fabricating, dry (glueing joint seam) of field by using or wet joint form connect, the assembled complete prestressed stretch-draw that carries out forms pier stud overall structure, Site Welding and cast-in-place concrete workload are at utmost reduced, be of value to quality control, accelerate construction speed, reduced the impact on traffic and surrounding enviroment, met the style of economic increase theme of environmental protection and energy saving low-carbon (LC).
But theory is calculated and be experimental results show that: the stem grafting seam section assembling bridge pier that adopts ordinary concrete to build, as joint only adopts concavo-convex shear connector, under seismic force effects, show following deficiency: between 1, the shock resistance of bridge abutment integral, pier shaft power consumption, sections, after potential areas of plasticity hinge shake, repairing equidynamic can be not good enough, should not be used for the earthquake district that takes place frequently; 2, bridge pier sections joint area easily occurs clashing into damage, and the concrete spalling of joint location is serious; 3, finished product pier stud surface concrete easily ftractures, and durability has much room for improvement.
Not enough for appeal, the utility model provides a kind of assembling bridge pier stud that utilizes Steel Fiber Reinforced Self-compacting Concrete to prepare, and can overcome above-mentioned technological deficiency.
Utility model content
In view of this; the purpose of this utility model is to provide a kind of Steel Fiber Reinforced Self-compacting Concrete Precast Concrete Segmental Bridges formula bridge pier; between segmental joints, use bar dowel energy-dissipation structure; the prefabricated subsection of gained and assembled after pier shaft there is good power performance; there is good energy dissipation capacity simultaneously; can postpone the concrete cracking in potential plastic hinge region between sections; significantly improve member anti-crack ability and durability; the better safety of protection sections member and pier shaft, can meet the earthquake designing requirement of the special geological surroundings such as district to the assembled bridge pier of precast segment that take place frequently.
The purpose of this utility model solves by following technological means: a kind of Precast Concrete Segmental Bridges formula bridge pier, comprise cushion cap, on cushion cap, be provided with pier shaft, this pier shaft is made up of multiple interconnective prefabricated subsections, pre-buried prestressed pore passage in prefabricated subsection, prestressed reinforcement is arranged in prestressed pore passage, between described contiguous prefabricated sections, is undertaken assembled by the joint style of assigning bar dowel.
Further, described pre-manufactured steel fiber self-dense concrete sections comprises sections body, the top of sections body is along being circumferentially vertically installed with many bar dowels, and bottom correspondence position is provided for the preformed hole inserting for bar dowel, and the bore dia of described preformed hole is greater than the diameter of bar dowel; Preformed hole bottom arranges mud jacking hole, and described sections body is along multiple presstressed reinforcing steel holes of axially running through are circumferentially set.
Further, described pre-manufactured steel fiber self-dense concrete sections comprises sections body, and described sections body is along circumferentially arranging multiple axially extending bores that pass for bar dowel, and described sections body is along multiple presstressed reinforcing steel holes of axially running through are circumferentially set.
Further, described bridge pier sections body is made up of Steel Fiber Reinforced Self-compacting Concrete.
Further, one end of described bridge pier sections body arranges shear connector, and the other end arranges shear connector groove.
Further, the height of described shear connector is identical with the degree of depth of shear connector groove, puts into rear docking and coincide good.
Further, described bridge pier sections body is hollow-core construction.
The beneficial effects of the utility model: the assembly pier that what the utility model provided utilize Steel Fiber Reinforced Self-compacting Concrete to prepare, this bridge pier can ensure construction casting quality, can reduce operation again artificial, and can obviously improve the anti-seismic performance of bridge.Through actual verification, effect is remarkable: 1, owing to being undertaken assembled by the joint style of assigning bar dowel between contiguous prefabricated steel concrete sections, in the time of bridge pier generation stress deformation, can consume part ability, make between the power consumption of shock resistance, pier shaft, sections of bridge abutment integral after potential areas of plasticity hinge shake the earthquake region dynamic performance superiorities such as reparation, can be used for earthquake region bridge pier column construction; 2, adopt Steel Fiber Reinforced Self-compacting Concrete, build density good, and can overcome preferably adopt ordinary concrete prepare bridge pier sections joint area easily occur clash into damage, the concrete spalling of joint location is serious, finished product pier stud surface concrete easily ftractures, the defects such as poor durability; The assembled bridge pier sections comprehensive mechanical property that adopts Steel Fiber Reinforced Self-compacting Concrete to prepare is superior, and under equivalent constructions and comparable size condition, the anti-seismic performance of joint area is 2-3 times of existing ordinary concrete prefabricated subsection.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further described.
Fig. 1 is the splicing structure schematic diagram (reserved blind hole) of adjacent bridge pier sections described in embodiment 1;
Fig. 2 is the splicing structure schematic diagram (reserved through hole) of adjacent bridge pier sections described in embodiment 2;
Fig. 3 is the plan structure schematic diagram of bridge pier sections described in the utility model;
Fig. 4 is the structural representation of looking up of bridge pier sections described in the utility model.
Detailed description of the invention
Below with reference to accompanying drawing, the utility model is elaborated:
If any bent cap, between bent cap and adjacent bridge pier sections, only insert independent bar dowel.
Different from the assembly pier structure of mentioning in background technology, described bridge pier sections comprises self-compaction steel fibrous concrete bridge pier sections body, be vertically set on bar dowel and the shear connector groove of bridge pier sections bodies top, the reserved bar dowel hole and the shear connector that axially arrange in adjacent bridge pier sections body bottom; Described bar dowel and shear connector are along the circumferential setting of pier segment cross; The bore dia in described reserved bar dowel hole is greater than the diameter of bar dowel, ensures the comprehensive mechanical property of potential plastic hinge region between sections.When assembled, pre-buried bar dowel and shear connector groove on cushion cap base, then put into groove by the shear connector of the first bridge pier sections bottom, and pre-buried bar dowel inserts in preformed hole and mud jacking, or run through through hole by reserved, the mode of bar dowel is installed when assembled and carries out between sections assembled; The like.If any bent cap, between bent cap and adjacent bridge pier sections, only insert bar dowel.After all in place, carry out prestressed stretch-draw and anchoring, avoid the excessive horizontal shift of intersegmental generation of seismic force effects time, good reliability; Between the shock resistance of bridge abutment integral, pier shaft power consumption, sections, after potential areas of plasticity hinge shake, repairing equidynamic can be superior, is applicable to the earthquake district's bridge construction that takes place frequently.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (7)
1. a Steel Fiber Reinforced Self-compacting Concrete Precast Concrete Segmental Bridges formula bridge pier, comprise cushion cap, on cushion cap, be provided with pier shaft, this pier shaft is made up of multiple interconnective pre-manufactured steel fibrous concrete sections, pre-buried prestressed pore passage in prefabricated subsection, prestressed reinforcement is arranged in prestressed pore passage, it is characterized in that: between described contiguous prefabricated sections, undertaken assembled by the joint style of assigning bar dowel.
2. Steel Fiber Reinforced Self-compacting Concrete Precast Concrete Segmental Bridges formula bridge pier according to claim 1, it is characterized in that: described prefabricated subsection comprises sections body (1), the top of sections body is along being circumferentially vertically installed with many bar dowels (2), bottom correspondence position is provided for the preformed hole (3) inserting for bar dowel (2), and the bore dia of described preformed hole is greater than the diameter of bar dowel; Preformed hole (3) bottom arranges mud jacking hole, and described sections body is along multiple presstressed reinforcing steel holes (6) of axially running through are circumferentially set.
3. Steel Fiber Reinforced Self-compacting Concrete Precast Concrete Segmental Bridges formula bridge pier according to claim 1, it is characterized in that: described prefabricated subsection comprises sections body (1), described sections body is along circumferentially arranging multiple axially extending bores that pass for bar dowel, and described sections body is along multiple presstressed reinforcing steel holes (6) of axially running through are circumferentially set.
4. want the Steel Fiber Reinforced Self-compacting Concrete Precast Concrete Segmental Bridges formula bridge pier described in 1 according to right, it is characterized in that: described bridge pier sections body is made up of Steel Fiber Reinforced Self-compacting Concrete.
5. Steel Fiber Reinforced Self-compacting Concrete Precast Concrete Segmental Bridges formula bridge pier according to claim 1, is characterized in that: one end of described bridge pier sections body arranges shear connector (4), and the other end arranges shear connector groove (5).
6. Steel Fiber Reinforced Self-compacting Concrete Precast Concrete Segmental Bridges formula bridge pier according to claim 1, is characterized in that: the height of described shear connector (4) is identical with the degree of depth of shear connector groove (5), puts into rear docking and coincide good.
7. Steel Fiber Reinforced Self-compacting Concrete Precast Concrete Segmental Bridges formula bridge pier according to claim 1, is characterized in that: described bridge pier sections body (1) is hollow-core construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420051245.2U CN203684076U (en) | 2014-01-26 | 2014-01-26 | Bridge pier formed by splicing prefabricated steel fiber self-compacting concrete segments |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420051245.2U CN203684076U (en) | 2014-01-26 | 2014-01-26 | Bridge pier formed by splicing prefabricated steel fiber self-compacting concrete segments |
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| CN203684076U true CN203684076U (en) | 2014-07-02 |
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| CN201420051245.2U Expired - Fee Related CN203684076U (en) | 2014-01-26 | 2014-01-26 | Bridge pier formed by splicing prefabricated steel fiber self-compacting concrete segments |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120647A (en) * | 2014-07-04 | 2014-10-29 | 上海应用技术学院 | Segmental assembling concrete frame bridge pier system suitable for rapid construction and construction method |
| CN107460793A (en) * | 2017-08-10 | 2017-12-12 | 中建空列（北京）工程设计研究院有限公司 | Hang empty iron assemblyization interval structure system and its construction method |
| CN107794837A (en) * | 2016-08-31 | 2018-03-13 | 南京理工大学 | Suitable for the prefabricated assembled bridge pier and its construction method of middle meizoseismal area |
| CN107938499A (en) * | 2018-01-11 | 2018-04-20 | 西南科技大学 | A kind of prefabricated assembled bridge pier |
| CN108425317A (en) * | 2018-05-04 | 2018-08-21 | 中南大学 | Precast segment assembly bridge pier and its construction method |
| CN108442236A (en) * | 2018-04-03 | 2018-08-24 | 中国建筑第五工程局有限公司 | Assembled bridge pier and construction method, prefabricated assembled beam bridge |
| CN108560423A (en) * | 2018-02-05 | 2018-09-21 | 四川动和工程咨询有限公司 | A kind of construction method of regular reinforcement and finish rolling deformed bar hybrid reinforcement assembly pier |
| CN108660910A (en) * | 2017-03-31 | 2018-10-16 | 比亚迪股份有限公司 | Precast pier, track support component and its manufacture installation method |
| CN108660912A (en) * | 2017-03-31 | 2018-10-16 | 比亚迪股份有限公司 | Precast pier, track support component and its manufacture installation method |
| CN108677688A (en) * | 2018-04-27 | 2018-10-19 | 安徽省交通规划设计研究总院股份有限公司 | A kind of rectangular Precast Pier Columns section assembling attachment device |
| CN109183607A (en) * | 2018-10-23 | 2019-01-11 | 湖南大学 | Precast spliced UHPC pipe-concrete super-high pier and construction method |
| CN110453588A (en) * | 2019-07-16 | 2019-11-15 | 同济大学 | A kind of lattice bent cap and its construction method |
| WO2020001156A1 (en) * | 2018-06-29 | 2020-01-02 | 比亚迪股份有限公司 | Bridge and bridge pier thereof |
| CN110656574A (en) * | 2018-06-29 | 2020-01-07 | 比亚迪股份有限公司 | Method for manufacturing bridge pier |
| CN111335153A (en) * | 2020-03-10 | 2020-06-26 | 西南交通大学 | Assembled hollow pier and construction method thereof |
| CN111379218A (en) * | 2020-04-17 | 2020-07-07 | 浙江省交通规划设计研究院有限公司 | Prefabricated pier body and prefabricated pier body installation method |
| CN115125867A (en) * | 2022-08-10 | 2022-09-30 | 北京城建设计发展集团股份有限公司 | Method for connecting prefabricated T-shaped piers through unbonded prestressed tendons and steel bars |
-
2014
- 2014-01-26 CN CN201420051245.2U patent/CN203684076U/en not_active Expired - Fee Related
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120647B (en) * | 2014-07-04 | 2016-09-14 | 上海应用技术学院 | It is suitable for section assembling concrete frame bridge pier system and the construction method of rapid construction |
| CN104120647A (en) * | 2014-07-04 | 2014-10-29 | 上海应用技术学院 | Segmental assembling concrete frame bridge pier system suitable for rapid construction and construction method |
| CN107794837A (en) * | 2016-08-31 | 2018-03-13 | 南京理工大学 | Suitable for the prefabricated assembled bridge pier and its construction method of middle meizoseismal area |
| CN108660910A (en) * | 2017-03-31 | 2018-10-16 | 比亚迪股份有限公司 | Precast pier, track support component and its manufacture installation method |
| CN108660912A (en) * | 2017-03-31 | 2018-10-16 | 比亚迪股份有限公司 | Precast pier, track support component and its manufacture installation method |
| CN107460793B (en) * | 2017-08-10 | 2019-08-02 | 中建空列（北京）工程设计研究院有限公司 | Hang empty iron assembly interval structure system and its construction method |
| CN107460793A (en) * | 2017-08-10 | 2017-12-12 | 中建空列（北京）工程设计研究院有限公司 | Hang empty iron assemblyization interval structure system and its construction method |
| CN107938499A (en) * | 2018-01-11 | 2018-04-20 | 西南科技大学 | A kind of prefabricated assembled bridge pier |
| CN108560423A (en) * | 2018-02-05 | 2018-09-21 | 四川动和工程咨询有限公司 | A kind of construction method of regular reinforcement and finish rolling deformed bar hybrid reinforcement assembly pier |
| CN108442236A (en) * | 2018-04-03 | 2018-08-24 | 中国建筑第五工程局有限公司 | Assembled bridge pier and construction method, prefabricated assembled beam bridge |
| CN108677688A (en) * | 2018-04-27 | 2018-10-19 | 安徽省交通规划设计研究总院股份有限公司 | A kind of rectangular Precast Pier Columns section assembling attachment device |
| CN108425317A (en) * | 2018-05-04 | 2018-08-21 | 中南大学 | Precast segment assembly bridge pier and its construction method |
| WO2020001156A1 (en) * | 2018-06-29 | 2020-01-02 | 比亚迪股份有限公司 | Bridge and bridge pier thereof |
| CN110656575A (en) * | 2018-06-29 | 2020-01-07 | 比亚迪股份有限公司 | Bridge and pier thereof |
| CN110656574A (en) * | 2018-06-29 | 2020-01-07 | 比亚迪股份有限公司 | Method for manufacturing bridge pier |
| CN110656574B (en) * | 2018-06-29 | 2022-03-18 | 比亚迪股份有限公司 | Method for manufacturing bridge pier |
| CN109183607A (en) * | 2018-10-23 | 2019-01-11 | 湖南大学 | Precast spliced UHPC pipe-concrete super-high pier and construction method |
| CN110453588A (en) * | 2019-07-16 | 2019-11-15 | 同济大学 | A kind of lattice bent cap and its construction method |
| CN111335153A (en) * | 2020-03-10 | 2020-06-26 | 西南交通大学 | Assembled hollow pier and construction method thereof |
| CN111379218A (en) * | 2020-04-17 | 2020-07-07 | 浙江省交通规划设计研究院有限公司 | Prefabricated pier body and prefabricated pier body installation method |
| CN115125867A (en) * | 2022-08-10 | 2022-09-30 | 北京城建设计发展集团股份有限公司 | Method for connecting prefabricated T-shaped piers through unbonded prestressed tendons and steel bars |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20170126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |