CN109338876A - A kind of embedded fishback telescopic device and application method - Google Patents
A kind of embedded fishback telescopic device and application method Download PDFInfo
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- CN109338876A CN109338876A CN201811361024.4A CN201811361024A CN109338876A CN 109338876 A CN109338876 A CN 109338876A CN 201811361024 A CN201811361024 A CN 201811361024A CN 109338876 A CN109338876 A CN 109338876A
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- fishback
- dynamic
- embedded
- telescopic device
- quiet
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
- E01D19/065—Joints having sliding plates
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- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
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Abstract
The invention discloses a kind of embedded fishback telescopic device and its application methods.Embedded fishback telescopic device includes: the first dynamic fishback, dynamic fishback second, quiet fishback, yielding rubber support, fastening screw, anchor, stainless steel slide plate, waterstop；In first dynamic fishback embedment abutment concrete, second dynamic fishback is connected by fastening screw with the first dynamic fishback, quiet fishback is equal with road surface and is connected by concrete with the abutment of the other side, and in bridge floor transverse direction, there are the gaps for the lateral displacement for meeting bridge between the first and second dynamic fishbacks and the mutually matched comb teeth of quiet fishback；Stainless steel slide plate is located at the sliding that the first dynamic fishback is used for below the abutment of quiet fishback side；Yielding rubber support is between the first dynamic fishback and dynamic fishback second；The upper and lower surfaces of first dynamic fishback are respectively connected with anchor, for connecting concrete；The lower surface of the quiet fishback is also connected with anchor.
Description
Technical field
The invention belongs to technical field of bridge engineering, in particular to a kind of embedded fishback telescopic device and user
Method.
Background technique
In science of bridge building, under normal bridge use state, since concrete creep, temperature or traffic load change, bridge
Face can be deformed.Therefore, it is necessary between the both ends of bridge, between beam-ends and abutment or bridge is arranged in the articulated position of bridge
Expansion joint, and bridge extension joint is installed at bridge expanssion joint, to meet the needs of bridge floor deformation, and guarantee travel safety
With the safety of comfort and bridge structure.
Currently, Expansion Units for Highway Bridges mainly has modular expansion device and the board-like telescopic device of comb teeth.Wherein comb teeth
Board-like telescopic device due to its structure is simple, can be according to bridge deck width flexible combination the advantages that, the use in bridge is more next
It is wider.
Existing comb plate type telescopic device is mainly by anchor bolt, the waterproof knot under exposed fishback, fishback
The composition such as structure.In actual use, several units are tended to separate into according to one telescopic device of bridge deck width, between each unit
Independent operating.In use, exposed fishback is directly born completely through vehicle comb plate type telescopic device
Cycle pulse formula load and shock loading.And the concrete by being attached thereto transfers loads to bridge.Fishback is born
Various load and impact from vehicle, can generate vibration and flexible deformation.The impact generated due to vibration and flexible deformation are produced
Raw stress will be inevitably transmitted on the concrete being attached thereto.Relative to concrete and fishback, concrete and comb
Articulamentum between tooth plate is entire connection system weak link the most.Especially fishback hardness is much larger than concrete.In comb teeth
Plate shakes under the impact with flexible deformation repeatedly, and connection layer concrete side can gradually be worn.Meanwhile unavoidably
The some collection that will appear in concrete with directly being contacted on the downside of rubble and fishback the case where, under the impact of fishback, meeting
Collection occur causes articulamentum crack occur with rubble fragmentation.The abrasion sum aggregate of concrete can be into the crack that rubble fragmentation generates
One step aggravates the vibration and percussion of fishback, the peeling of articulamentum finally occurs and the phenomenon that causes fishback hanging.Comb
After tooth plate is hanging, due to losing support, it is easy to generate comb teeth slab warping, the diseases such as fall off, and it is complete to eventually lead to telescopic device
Full failure.
Summary of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, provide a kind of embedded fishback telescopic device and
Application method overcomes existing form comb plate type telescopic device fishback easy and concrete scaling, the low disadvantage of service life.
Technical solution is as follows:
A kind of embedded fishback telescopic device, comprising: the first dynamic fishback, dynamic fishback second, quiet fishback, damping
Rubber support, fastening screw, anchor, stainless steel slide plate, waterstop；
In the first dynamic fishback embedment abutment concrete, the second dynamic fishback passes through fastening screw and the first dynamic comb teeth
Plate is connected, and quiet fishback is equal with road surface and is connected by concrete with the abutment of the other side, the first and second dynamic comb teeth
In bridge floor transverse direction, there are the gaps for the lateral displacement for meeting bridge between plate and the mutually matched comb teeth of quiet fishback；It is stainless
Steel slide plate is located at the sliding that the first dynamic fishback is used for below the abutment of quiet fishback side；
The yielding rubber support is between the first dynamic fishback and dynamic fishback second, when assembling, yielding rubber branch
Seat is in pre-pressing state；The upper and lower surfaces of the first dynamic fishback are respectively connected with anchor, mixed for connecting
Solidifying soil；The lower surface of the quiet fishback is also connected with anchor.
Preferably, the described first dynamic fishback is rolled plate, and abutment side is provided with areolation, the other side
With comb shape tooth.When the design being embedded in concrete is so that driving passes through, car load and impact act directly on abutment, and lead to
It crosses abutment and is directly passed to bridge itself, rather than act on the first dynamic fishback, effectively avoid dynamic fishback because straight
The case where connecing the repeated stock for bearing vehicle and being easily damaged.First dynamic fishback is in areolation close to the side of abutment,
Width of mesh and position are determining according to comb teeth board size, can have better bond strength with concrete convenient for fishback, meanwhile,
The pouring of observation concrete can be facilitated and tamp situation.
Preferably, the second dynamic fishback is rolled plate, and side has comb shape tooth, and tooth form is identical as the first dynamic fishback.
Car load and impact act directly on the second dynamic fishback, and pass to first by fastening screw and yielding rubber support
Dynamic fishback.The presence of yielding rubber support effectively slows down the vibration of driving bring and impact.
Preferably, the stainless steel slide plate is connected by welding with quiet fishback.
Preferably, when assembling, yielding rubber support is in pre-pressing state, plays the role of preload, energy to fastening screw
Enough it effectively prevent bolt looseness caused by vehicle repeated stock.
Preferably, waterstop is housed below the embedded fishback telescopic device.Waterstop is in bridge floor transverse direction
One is whole, can effectively obstruct driving bring dust, rainfall, snowfall etc..Prevent the pollution to bridge pad such as dust, sleet
And damage.
Second dynamic fishback is connected by fastening screw with the first dynamic fishback, and it is exposed outside to substantially reduce dynamic fishback
Area.
The application method of above-mentioned embedded fishback telescopic device is installed in parallel multiple insertions according to bridge deck width
Formula fishback telescopic device.Between each group telescopic device independently of one another.It leads when due to bridge floor transverse direction since temperature is different
When causing bridge stroke uneven, independent telescope between each group telescopic device can be effectively reduced inside bridge extension joint
Stress increases the service life of bridge extension joint.
Detailed description of the invention
Fig. 1 is embedded fishback telescopic device schematic cross-section；
Fig. 2 is embedded fishback telescopic device plan view.
Description of symbols:
1- moves fishback 1；2- moves fishback 2；The quiet fishback of 3-；4- yielding rubber support；5- fastening bolt；6- anchoring dress
It sets；7- watertight rubber band；8- stainless steel slide plate.
Specific embodiment
To make those skilled in the art more fully understand technical solution of the present invention, the present invention is mentioned with reference to the accompanying drawing
A kind of embedded fishback telescopic device and application method supplied is described in detail.Following embodiment is merely to illustrate the present invention
Range and is not intended to limit the present invention.
Embodiment 1
A kind of embedded fishback telescopic device, including dynamic fishback 1, dynamic fishback 2, quiet fishback, yielding rubber branch
Seat, fastening screw, anchor, stainless steel slide plate, waterstop.It wherein moves fishback 1 to be embedded in abutment concrete, moves fishback
2 are connected by fastening screw with dynamic fishback, and yielding rubber support is located between dynamic fishback 1 and dynamic fishback 2.Quiet fishback
It is equal with road surface, and be connected by concrete with the abutment of the other side.Stainless steel slide plate is located under the abutment of quiet fishback side
Side, convenient for moving the sliding of fishback 1.Dynamic fishback 1 is in areolation close to the side of abutment, while upper and lower two surfaces connect
It is connected to anchor, so that dynamic fishback 1 has preferable connection with concrete.Similar, quiet fishback lower surface is also connected with
Identical anchor.
In use, embedded comb plate type telescopic device is placed at the expansion joint of bridge, bridge can be due to temperature, lotus
It carries variation or concrete creep and generates displacement, corresponding expansion joint spacing also can increase with it or reduce.With bridge expanssion joint
For spacing increases, abutment will pull connected dynamic fishback 1, quiet fishback 3, move fishback 2 in dynamic fishback 1
It can also be moved under drive.Then entire telescopic device completes stretching motion；Correspondingly, the gap between fishback is also able to satisfy
The transverse shifting of bridge.It since dynamic fishback 1 is embedded in concrete, is integrally formed with bridge, exposed is only dynamic
Fishback 2 and quiet fishback.Compared to traditional comb plate type telescopic device, the design of embedded dynamic fishback 1 so that it is exposed
Outer dynamic comb teeth plate suqare greatly reduces, and greatly alleviates and directly impacts and shake to dynamic fishback bring when driving passes through
It is dynamic；On the other hand, although dynamic fishback 2 directly it is exposed outside, the presence of yielding rubber support can greatly alleviate driving and bring
Vibration and impact, while having the function of that anti-stop fishback 2 loosens.The group of embedded dynamic fishback and yielding rubber support
Design is closed, the impact and shock effect to telescopic device is effectively reduced, greatly increases the service life of telescopic device.
Embedded fishback telescopic device provided by the present invention, structure is simple, and components are few, is able to satisfy bridge in difference
In the case of Deformation Demands.Especially Embedded dynamic fishback design, so that car load is not to act directly on dynamic comb teeth
On plate, but be directly delivered in bridge beam body by concrete, avoid traditional comb plate type telescopic device move fishback by
In directly exposed leading to bear the feelings of vehicle directly rolled and be easy to fall off caused by repeated stock on road surface repeatedly
Condition improves the Acceptable life of telescopic device；The presence of yielding rubber support effectively alleviates when vehicle passes through to bridge
The impact of beam bring itself, while can satisfy the displacement and rotation of bridge in the vertical direction；Dynamic fishback and quiet comb teeth
Gap between plate can satisfy bridge corner variation in the horizontal direction.
Example of the invention is explained in detail above in conjunction with attached drawing, but the present invention is not limited to examples detailed above,
Within the scope of knowledge, what can also be made without departing from the purpose of the present invention is each by those of ordinary skill in the art
Kind variation, also should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of embedded fishback telescopic device characterized by comprising the first dynamic fishback, dynamic fishback second, quiet comb
Tooth plate, yielding rubber support, fastening screw, anchor, stainless steel slide plate, waterstop；
In the first dynamic fishback embedment abutment concrete, the second dynamic fishback passes through fastening screw and the first dynamic fishback phase
Even, quiet fishback is equal with road surface and is connected by concrete with the abutment of the other side, the first and second dynamic fishback and
In bridge floor transverse direction, there are the gaps for the lateral displacement for meeting bridge between the quiet mutually matched comb teeth of fishback；Stainless steel is sliding
Plate is located at the sliding that the first dynamic fishback is used for below the abutment of quiet fishback side；
The yielding rubber support is between the first dynamic fishback and dynamic fishback second；The upper table of the first dynamic fishback
Face and lower surface are respectively connected with anchor, for connecting concrete；The lower surface of the quiet fishback is also connected with anchoring dress
It sets.
2. embedded fishback telescopic device according to claim 1, which is characterized in that the first dynamic fishback is to roll
Steel plate processed is provided with areolation close to abutment side, and the other side has comb shape tooth.
3. embedded fishback telescopic device according to claim 2, which is characterized in that the second dynamic fishback is rolled steel
Plate, side have comb shape tooth, and tooth form is identical as the first dynamic fishback.
4. embedded fishback telescopic device according to claim 3, which is characterized in that the stainless steel slide plate passes through weldering
It connects and is connected with quiet fishback.
5. embedded fishback telescopic device according to claim 4, which is characterized in that when assembling, yielding rubber support
In pre-pressing state, play the role of preload to fastening screw.
6. embedded fishback telescopic device according to claim 5, which is characterized in that the embedded fishback is flexible
Waterstop is housed, waterstop is an entirety in bridge floor transverse direction below device.
7. a kind of application method of embedded fishback telescopic device, which is characterized in that according to bridge deck width, be installed in parallel multiple
Embedded fishback telescopic device as described in any one in claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811361024.4A CN109338876B (en) | 2018-11-15 | 2018-11-15 | Embedded comb plate telescopic device and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811361024.4A CN109338876B (en) | 2018-11-15 | 2018-11-15 | Embedded comb plate telescopic device and using method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109338876A true CN109338876A (en) | 2019-02-15 |
| CN109338876B CN109338876B (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811361024.4A Active CN109338876B (en) | 2018-11-15 | 2018-11-15 | Embedded comb plate telescopic device and using method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109680605A (en) * | 2019-01-29 | 2019-04-26 | 杨胜 | A kind of comb-tooth-type bridge extension joint |
| CN110886208A (en) * | 2019-12-06 | 2020-03-17 | 武汉丰瑞桥梁科技有限公司 | Embedded reinforcing structure and method for bridge expansion device |
| CN110886210A (en) * | 2019-12-16 | 2020-03-17 | 内江师范学院 | Bridge expansion joint width adjusting device |
| CN111119038A (en) * | 2019-12-30 | 2020-05-08 | 山西省交通新技术发展有限公司 | Multi-directional displacement composite plate type expansion device for highway bridge |
| CN111141627A (en) * | 2019-12-27 | 2020-05-12 | 太原理工大学 | Concrete creep test loading device considering car-induced cyclic load effect |
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| CN206784167U (en) * | 2017-05-23 | 2017-12-22 | 成都市新筑路桥机械股份有限公司 | The board-like retractor device of new antivibration noise abatement multi-directional deflection broach |
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| CN202809483U (en) * | 2012-07-27 | 2013-03-20 | 柳州东方工程橡胶制品有限公司 | Concrete combination expansion device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109680605A (en) * | 2019-01-29 | 2019-04-26 | 杨胜 | A kind of comb-tooth-type bridge extension joint |
| CN109680605B (en) * | 2019-01-29 | 2020-09-04 | 杨胜 | Comb-tooth type bridge expansion device |
| CN110886208A (en) * | 2019-12-06 | 2020-03-17 | 武汉丰瑞桥梁科技有限公司 | Embedded reinforcing structure and method for bridge expansion device |
| CN110886210A (en) * | 2019-12-16 | 2020-03-17 | 内江师范学院 | Bridge expansion joint width adjusting device |
| CN111141627A (en) * | 2019-12-27 | 2020-05-12 | 太原理工大学 | Concrete creep test loading device considering car-induced cyclic load effect |
| CN111119038A (en) * | 2019-12-30 | 2020-05-08 | 山西省交通新技术发展有限公司 | Multi-directional displacement composite plate type expansion device for highway bridge |
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|---|---|
| CN109338876B (en) | 2020-05-22 |
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| CB03 | Change of inventor or designer information |
Inventor after: Fang Rui Inventor after: Wang Zhifu Inventor after: Liu Jian Inventor after: Liang Zhicheng Inventor after: Gao Zhenyu Inventor after: Gao Yueqiu Inventor after: Zhao Pengwei Inventor after: Nie Longfei Inventor after: Zhang Dawei Inventor after: Tao Bin Inventor after: Zhang Ruibin Inventor after: Jiang Jingwei Inventor after: Li Xuhua Inventor after: Yang Suxia Inventor after: Yuan Fei Inventor before: Nie Longfei Inventor before: Shi Minqian Inventor before: Liu Jian Inventor before: Gao Zhenyu Inventor before: Zhao Min Inventor before: Li Xuhua Inventor before: Zhang Dawei Inventor before: Jiang Jingwei Inventor before: Tao Bin Inventor before: Yang Suxia Inventor before: Yuan Fei Inventor before: Wang Zhifu Inventor before: Liang Zhicheng |
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Effective date of registration: 20200429 Address after: 030006 Shanxi Province, Taiyuan city district and State Road No. 69 Applicant after: Shanxi Communications New Technology Development Co., Ltd Applicant after: SHANXI JIAOKE (MAURER) BRIDGE ACCESSORIES Co.,Ltd. Address before: 030006 No. 79 Xuefu street, Shanxi, Taiyuan Applicant before: SHANXI PROVINCIAL RESEARCH INSTITUTE OF COMMUNICATIONS |
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