CN104652257A - Jointless abutment structure - Google Patents

Jointless abutment structure Download PDF

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Publication number
CN104652257A
CN104652257A CN201510069312.2A CN201510069312A CN104652257A CN 104652257 A CN104652257 A CN 104652257A CN 201510069312 A CN201510069312 A CN 201510069312A CN 104652257 A CN104652257 A CN 104652257A
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CN
China
Prior art keywords
abutment
bridge
girder
jointless
plate
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.)
Granted
Application number
CN201510069312.2A
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Chinese (zh)
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CN104652257B (en
Inventor
高金
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Shanghai Investigation Design and Research Institute Co Ltd SIDRI
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Shanghai Investigation Design and Research Institute Co Ltd SIDRI
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Priority to CN201510069312.2A priority Critical patent/CN104652257B/en
Publication of CN104652257A publication Critical patent/CN104652257A/en
Application granted granted Critical
Publication of CN104652257B publication Critical patent/CN104652257B/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/02Piers; Abutments ; Protecting same against drifting ice

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Road Paving Structures (AREA)

Abstract

The invention provides a jointless abutment structure which comprises a girder, an abutment cap beam, a lapping plate, a tetrafluoro sliding plate, a stainless steel plate, an anchor bolt, bridge deck pavement and bridge deck continuous reinforced bars, wherein the girder and the lapping plate are supported on the abutment cap beam side by side; the bridge deck pavement is commonly laid on the girder and the lapping plate; the tetrafluoro sliding plate, the stainless steel sliding plate and the anchor bolt are arranged between the lapping plate and the abutment cap beam; the tetrafluoro sliding plate is fixed on the abutment cap beam; the anchor bolt is embedded in the abutment cap beam; the stainless steel plate is embedded in the lapping plate; a slotted hole along the bridge direction is formed in a position, corresponding to the anchor bolt, of the lapping plate; the anchor bolt is inserted into the slotted hole. According to the jointless abutment structure provided by the invention, expansion joints are omitted, so that a series of use and maintenance problems caused by an expansion and contraction device are solved; the jointless abutment structure is not limited from the bridge deck and a base form thereof and is wide in application range; the upper structure and the lower structure of the bridge are separated, and the structural stress is definite. When the abutment structure is adopted, an existing girder structure can be directly applied and no special handling is needed; particularly when the jointless abutment structure is used for reforming old bridges, the jointless abutment structure is simple and convenient for construction and low in expense.

Description

Seamless bridge abutment structure
Technical field
The present invention relates to technical field of bridge engineering, particularly relate to a kind of seamless bridge abutment structure.
Background technology
In the structure design of bridge, usually between the end bay beam-ends and abutment of bridge, shrinkage joint is set, with the needs of adaptive temperature dilatation.The circular temperature loads value etc. of the size of expansion joint width environment residing for the structure length of a bridge, the type of superstructure, the coefficient of thermal expansion of superstructure material therefor and bridge is comprehensively determined.
Abutment arranges the bridge at shrinkage joint in use, easily occurs to jump car at end of the bridge place, the comfort level of impact driving; Simultaneously, deck expansion installation is arranged on beam-ends structural weak position, because construction method is improper, after the insufficient rigidity of stretching device own, platform before excessive, the overload of vehicle of soil pressure or platform the soil body be washed, the reason such as vehicular load repeated action, become the position that bridge construction is subject to destruction and more difficult reparation most.Bridge extension joint is once destroy, end of main beam and parados dieback, cause parados and girder beam-ends to destroy, girder provides a horizontal support at parados place to abutment, the abutment originally calculated according to vertical semi girder, force modes there occurs change, particularly for the bricklaying abutment of the larger shear resistance difference of rigidity, horizontal straight joint can be produced at abutment body, cause abutment body to destroy, further deterioration driving conditions, aggravation reduces bridge application life.
The seamless abutment that various countries use in research in recent years eliminates shrinkage joint, after relying on deformation of pile foundation and platform, subgrade deformation adapts to beam body and stretches, but this structure is only applicable to flexible foundation, abutment that abutment body is short, and design theory is immature, construction technical requirement is high; For a large amount of old bridge seamless process transformation projects, its range of application is by the restriction of abutment foundation form, and construction sequence is complicated, costly.
Summary of the invention
Technical problem to be solved by this invention is exactly for above shortcomings in prior art, provides a kind of and is extensively suitable for, simple seamless bridge abutment structure, is not only applicable to the seamless process construction of new bridge, is more suitable for the seamless process transformation of old bridge.
For achieving the above object and other relevant objects, the invention provides a kind of seamless bridge abutment structure, comprise girder, abutment cap, attachment strap, tetrafluoro slide plate, corrosion resistant plate, crab-bolt, deck paving, bridge floor continuity reinforcement(bar), described girder and attachment strap are supported on abutment cap side by side, girder and attachment strap lay deck paving jointly, tetrafluoro slide plate is provided with between described attachment strap and abutment cap, corrosion resistant plate and crab-bolt, this tetrafluoro slide plate is fixed on abutment cap, anchor bolt preburied in abutment cap, corrosion resistant plate is embedded in attachment strap, attachment strap is offered in the position corresponding with crab-bolt along bridge to slotted hole, crab-bolt is inserted in described slotted hole.
Further, the deck paving of girder and attachment strap seam crossing is interior arranges bridge floor continuity reinforcement(bar).
Further, described girder by bearing support on abutment cap.
By above technical scheme, the present invention has following technique effect compared to prior art: present invention eliminates shrinkage joint, avoids a series of working service problems that stretching device brings; This structure is not subject to the restriction of abutment and base form thereof, has wide range of applications; Bridge top and the bottom structure is separated, and structure stress is clear and definite; When adopting this bridge abutment structure, can directly apply existing main beam structure, without the need to doing specially treated; During especially for remake old bridge, construct simple and convenient, low cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the seamless bridge abutment structure of the present invention.
Element numbers illustrates:
1 girder
2 abutment caps
3 attachment straps
4 tetrafluoro slide plates
5 corrosion resistant plates
6 crab-bolts
7 deck pavings
8 bridge floor continuity reinforcement(bar)s
9 bearings
Detailed description of the invention
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this manual can understand other advantages of the present invention and effect easily.
Refer to Fig. 1.Notice, structure, ratio, size etc. that this manual institute accompanying drawings illustrates, content all only in order to coordinate manual to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the present invention can produce and the object that can reach, still all should drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, quote in this manual as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the present invention.
Consult shown in Fig. 1, the invention provides a kind of seamless bridge abutment structure, comprise girder 1, abutment cap 2, attachment strap 3, tetrafluoro slide plate 4, corrosion resistant plate 5, crab-bolt 6, deck paving 7, bridge floor continuity reinforcement(bar) 8, girder 1 is supported on abutment cap 2 by bearing 9, and one end of attachment strap 3 is shelved on abutment cap 2; Be provided with tetrafluoro slide plate 4 and corrosion resistant plate 5 between attachment strap 3 and abutment cap 2, reduce resistance during attachment strap longitudinal sliding motion; Tetrafluoro slide plate 4 is fixed on abutment cap 2, crab-bolt 6 is embedded in abutment cap 2, corrosion resistant plate 5 is embedded in attachment strap 3, attachment strap 3 is offered in the position corresponding with crab-bolt 6 along bridge to slotted hole, crab-bolt 6 is inserted in this slotted hole, while the longitudinal sliding motion of guarantee attachment strap 3, prevent it from coming off from cap 2.Deck paving 7 laid by girder 1 and attachment strap 3, and in girder 1 with the deck paving of attachment strap 3 seam crossing, arrange bridge floor continuity reinforcement(bar) 8, both guarantees are cooperative transformation under temperature action.
The application of the present invention is seamless bridge abutment structure:
For newly building bridge, abutment is without parados, and the abutment cap of first constructing, cast-in fixing bolt in cap, then set up girder, lay tetrafluoro slide plate, crab-bolt is passed in tetrafluoro slide plate, and construction attachment strap, does bridge floor continuous.
For remake old bridge, keep former girder constant, cut abutment parados, by floating for cap end face, implant crab-bolt, lay tetrafluoro slide plate, crab-bolt is passed in tetrafluoro slide plate, and construction attachment strap, does bridge floor continuous.
In sum, present invention eliminates shrinkage joint, avoid a series of working service problems that stretching device brings; This structure is not subject to the restriction of abutment and base form thereof, has wide range of applications; Bridge top and the bottom structure is separated, and structure stress is clear and definite; When adopting this bridge abutment structure, can directly apply existing main beam structure, without the need to doing specially treated; During especially for remake old bridge, construct simple and convenient, low cost.So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.

Claims (3)

1. a seamless bridge abutment structure, it is characterized in that, comprise girder (1), abutment cap (2), attachment strap (3), tetrafluoro slide plate (4), corrosion resistant plate (5), crab-bolt (6), deck paving (7), bridge floor continuity reinforcement(bar) (8), described girder (1) and attachment strap (3) are supported on abutment cap (2) side by side, deck paving (7) laid jointly by girder (1) and attachment strap (3), tetrafluoro slide plate (4) is provided with between described attachment strap (3) and abutment cap (2), corrosion resistant plate (5) and crab-bolt (6), tetrafluoro slide plate (4) is fixed on abutment cap (2), crab-bolt (6) is embedded in abutment cap (2), corrosion resistant plate (5) is embedded in attachment strap (3), attachment strap (3) is offered in the position corresponding with crab-bolt (6) along bridge to slotted hole, crab-bolt (6) is inserted in described slotted hole.
2. seamless bridge abutment structure according to claim 1, is characterized in that, arranges bridge floor continuity reinforcement(bar) (8) in girder (1) and the deck paving of attachment strap (3) seam crossing.
3. seamless bridge abutment structure according to claim 1, is characterized in that, described girder (1) is supported on abutment cap (2) by bearing (9).
CN201510069312.2A 2015-02-09 2015-02-09 Seamless bridge abutment structure Withdrawn - After Issue CN104652257B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510069312.2A CN104652257B (en) 2015-02-09 2015-02-09 Seamless bridge abutment structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510069312.2A CN104652257B (en) 2015-02-09 2015-02-09 Seamless bridge abutment structure

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CN104652257A true CN104652257A (en) 2015-05-27
CN104652257B CN104652257B (en) 2016-06-15

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104878687A (en) * 2015-06-16 2015-09-02 厦门理工学院 Semi-integral seamless slope bridge head structure
CN107142837A (en) * 2017-05-16 2017-09-08 云南省公路开发投资有限责任公司 Connectivity hazard to bridge's pier is constructed and its construction method
CN107313339A (en) * 2017-07-28 2017-11-03 武汉理工大学 Assembled abutment and its construction method
CN108824176A (en) * 2018-04-10 2018-11-16 深圳市市政设计研究院有限公司 A kind of bridge abutment structure and its construction method for jointless bridge

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4076185B2 (en) * 2005-04-27 2008-04-16 株式会社ガイアートT・K How to design an extended floor slab
JP2009209589A (en) * 2008-03-05 2009-09-17 Nippon Kyoryo Kensetsu Kyokai Joint structure provided with covering material
CN201635007U (en) * 2010-03-05 2010-11-17 湖南大学 Continuous reinforcement bar connection deck structure for integrated seamless bridge
JP4990246B2 (en) * 2008-08-26 2012-08-01 株式会社ガイアートT・K How to install smooth material in road construction method
CN204626243U (en) * 2015-02-09 2015-09-09 上海勘测设计研究院有限公司 Seamless bridge abutment structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4076185B2 (en) * 2005-04-27 2008-04-16 株式会社ガイアートT・K How to design an extended floor slab
JP2009209589A (en) * 2008-03-05 2009-09-17 Nippon Kyoryo Kensetsu Kyokai Joint structure provided with covering material
JP4990246B2 (en) * 2008-08-26 2012-08-01 株式会社ガイアートT・K How to install smooth material in road construction method
CN201635007U (en) * 2010-03-05 2010-11-17 湖南大学 Continuous reinforcement bar connection deck structure for integrated seamless bridge
CN204626243U (en) * 2015-02-09 2015-09-09 上海勘测设计研究院有限公司 Seamless bridge abutment structure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104878687A (en) * 2015-06-16 2015-09-02 厦门理工学院 Semi-integral seamless slope bridge head structure
CN107142837A (en) * 2017-05-16 2017-09-08 云南省公路开发投资有限责任公司 Connectivity hazard to bridge's pier is constructed and its construction method
CN107142837B (en) * 2017-05-16 2019-08-27 云南交投集团公路建设有限公司 Connectivity hazard to bridge's pier construction and its construction method
CN107313339A (en) * 2017-07-28 2017-11-03 武汉理工大学 Assembled abutment and its construction method
CN108824176A (en) * 2018-04-10 2018-11-16 深圳市市政设计研究院有限公司 A kind of bridge abutment structure and its construction method for jointless bridge

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