CN206873283U - A kind of monoblock type comb plate type bridge extension joint - Google Patents
A kind of monoblock type comb plate type bridge extension joint Download PDFInfo
- Publication number
- CN206873283U CN206873283U CN201720794009.3U CN201720794009U CN206873283U CN 206873283 U CN206873283 U CN 206873283U CN 201720794009 U CN201720794009 U CN 201720794009U CN 206873283 U CN206873283 U CN 206873283U
- Authority
- CN
- China
- Prior art keywords
- fishback
- support
- support beam
- bridge
- dynamic
- 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 - Fee Related
Links
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a kind of Expansion Units for Highway Bridges of technical field of bridge engineering, including quiet fishback, dynamic fishback, support beam, support case.Quiet fishback is connected with support case and abutment of the dynamic fishback respectively at bridge both sides, and support beam upper and lower surface posts stainless steel slide plate, in order to which bearing slides in support beam；The surface that sliding support contacts with support beam is provided with U-type groove, and the width of the U-type groove is more than the width of support beam；Support beam sides and support case side are provided with limited block.Monoblock type comb plate bridge expansion device provided by the utility model, simple in construction, stress is clear, can meet the Deformation Demands of bridge in varied situations；Improve the bearing capacity of fishback so that fishback is hardly damaged, and improves the service life of retractor device, while anti-jump car, effectively increase vehicle by when comfortableness.
Description
Technical field
Technical field of bridge engineering is the utility model is related to, specifically, there is provided a kind of monoblock type comb plate type bridge
Retractor device, disclosure satisfy that the Deformation Demands of bridge in varied situations, at the same prevent jump car, effectively improve vehicle by when
Comfortableness.
Background technology
In science of bridge building, bridge structure can be because temperature, loads change or concrete creep under normal operating condition
And produce bridge floor deformation.Therefore, it is necessary between the both ends of bridge, between beam-ends and abutment or the articulated position of bridge sets bridge
Beam expansion joint, and bridge extension joint is installed on bridge expanssion joint, to meet the needs of bridge deformation, and ensure traffic safety
Property and the safety of comfortableness and bridge structure.
At present, Expansion Units for Highway Bridges mainly has modular expansion device and the board-like retractor device of broach.Wherein broach
Board-like retractor device due to its it is simple in construction, stress is clear the advantages that, the use in big displacement bridge expanssion joint is more and more wider.
Existing comb plate type retractor device is mainly made up of fishback, anchor bolt, waterproof construction etc..Actually using
Cheng Zhong, independent operating between tening to separate into some sections, each section according to one retractor device of bridge deck width.Comb plate type retractor device
In use, fishback is directly born by the way that the cycle pulse formula of vehicle is vertical and shock loading, and vertical completely
The elastic deformation to move in circles is produced on direction.The anchor bolt being attached thereto also bears tension and compression and shear action repeatedly.Respectively
Due to separate, the load that fishback is born can not be disperseed section fishback retractor device by adjacent fishback.Dynamic comb
Tooth plate is easy to produce under middle concave because of fatigue effect, the permanent plastic deformation that both ends tilt.The plasticity of dynamic fishback becomes
Shape can aggravate tension and compression and the shear action of anchor bolt, cause anchor bolt to produce nut and come off, bolt releases.Bolt releases
The vibrations of dynamic fishback can be caused, vibrations can be further exacerbated by the fatigue deformation of dynamic fishback.The disease incidence of the two is pernicious to follow
Ring, ultimately results in that retractor device is entirely ineffective, and service life does not reach design service life far.
Utility model content
Buckling deformation, service life are produced in order to solve the dynamic fishback for the comb plate type retractor device for overcoming prior art
The problem of low, the utility model provide a kind of monoblock type comb plate type bridge extension joint.
A kind of monoblock type comb plate type bridge extension joint, including：Quiet fishback, dynamic fishback, support beam, support case；
Wherein, quiet fishback and dynamic fishback are directly connected in the support case of bridge both sides respectively, and by anchor rib with
Bridge both sides abutment is connected；Sliding support is provided between support beam and dynamic fishback, for providing support for dynamic fishback
With alleviation traffic blows；The upper and lower surface of support beam posts stainless steel slide plate, in order to which bearing drives deformed steel in support beam
Upper slip；The surface that sliding support contacts with support beam is provided with U-type groove, and the width of the U-type groove is more than the width of support beam；
Support beam sides and support case side are provided with limited block, for playing spacing work in the displacement along bridge floor direction to support beam
With preventing support beam from pulling and fishback dieback.
Preferably, bearing and compressing support are additionally provided with the support beam, the one side contacted with support beam is set
There is U-type groove, the U-type groove inner surface is sticked and has polyfluortetraethylene plate, with reducing friction resistance, while also can effectively prevent bearing
Slip, and play the position-limiting action of the swing to support beam in the in-plane direction.
Preferably, the compressing support in the support beam and bearing bottom are provided with pin-and-hole, coordinate on support case
Pin achieves a fixed connection.
Preferably, the sliding support, bearing and compressing support are rubber supports, are held being effectively increased retractor device
While loading capability, alleviate impact when driving passes through.
Preferably, the rubber support is connected by pin with support beam, and bearing can easily more in the event of damage
Change.
Preferably, the quiet fishback and dynamic fishback rolled plate are made up of rolled plate, are designed according to bridge deck width
As polylith, beneficial to the independent telescope between each piece, while it is readily transported and installs；When driving passes through retractor device, fishback
And the bearing entirety stress being attached thereto, rather than indivedual fishbacks and Bearing Seat Force, effectively decompose band when driving passes through
The pressure come and impact, improve the service life of retractor device.
Preferably, on the premise of strength demand is met, the quiet fishback and dynamic fishback are close to the both sides of abutment
On surface, several through holes, hole size and position are equipped with respectively and is determined according to the size of fishback, to facilitate live coagulation
The pouring of soil and observation concrete tamp situation.
Preferably, described fishback is connected by anchor rib with support case, and it is horizontal that connection is provided between adjacent anchor rib
Muscle, to strengthen anchorage effect.
A kind of monoblock type comb plate bridge expansion device provided by the utility model, simple in construction, stress is clear, can be full
The Deformation Demands of sufficient bridge in varied situations, improve the bearing capacity of fishback so that fishback is hardly damaged, and is improved
The service life of retractor device.In addition, can simultaneously anti-jump car, effectively increase vehicle by when comfortableness.
Brief description of the drawings
Fig. 1 is monoblock type fishback retractor device schematic cross-section.
Fig. 2 is monoblock type fishback retractor device plan.
Description of reference numerals：
1- supports case；2- anchor ribs；3- support beam blocks；4- supports case block；5- support beams；6- sliding supports；7- branch
Support beam compressing support；8- stainless steel slide plates；9- moves fishback；The quiet fishbacks of 10-；11- support beam bearings；12- pins.
Embodiment
To make those skilled in the art more fully understand the technical solution of the utility model, below in conjunction with the accompanying drawings to this reality
It is described in detail with a kind of monoblock type comb plate type bridge extension joint of new offer.
A kind of monoblock type comb plate type retractor device.The retractor device includes：Dynamic fishback 9, quiet fishback 10, branch
Support beam 5, support case 1.Wherein dynamic fishback 9 and quiet fishback 10 are connected to the support case 1 of bridge both sides and pass through anchoring
Abutment of the muscle 2 respectively at bridge both sides is connected；The upper and lower surface of support beam 5 posts stainless steel slide plate 8；Support beam compressing support 7
Pin-and-hole is provided with the one side that support case contacts with support beam bearing 11, and is connected by pin 12 with support case 1；Slide
The surface that bearing 6 contacts with dynamic fishback is plane, and posts polyfluortetraethylene plate, and dynamic fishback slides on sliding support；
The surface that sliding support 6, support beam compressing support 7, support beam bearing 11 contact with support beam is provided with U-type groove, U-type groove
Width is more than the width of support beam, and polyfluortetraethylene plate is posted inside U-type groove, is easy to support beam in rubber support 6,7,11
Upper slip, and position-limiting action is played to the swing of support beam in the horizontal direction；The both sides of support case 1 and support beam 5 are set respectively
There are support case block 4 and support case block 3, position-limiting action is played in the displacement along bridge floor direction to support beam, prevented extreme
Under the conditions of support beam pull or dieback.
In use, monoblock type comb plate type retractor device is placed at the expansion joint of bridge, bridge can be due to temperature, lotus
Carry change or concrete creep and produce displacement, corresponding expansion joint spacing also can increase or reduce therewith.With bridge expanssion joint
Exemplified by spacing increase, abutment can pull connected dynamic fishback 9, quiet fishback 10, support case 1 etc. to be moved to both sides.
Sliding support 6 can also be moved in the presence of dynamic fishback 9 and support beam 5 along support beam, due to sliding support
Main function is branch racking fishback, therefore not high to uniformity requirement to each other.When driving passes through retractor device, move
The lower section of fishback 9 all can have sliding support 6 to support it all the time, and the presence of support beam 5 effectively raises the anti-of fishback
Pulsed is vertical and the ability of shock loading, the presence of rubber support 6,7,11 also effectively slow down the dynamic plate of broach 9 to branch
Beam 5, the percussion of anchor rib 2 are supportted, effectively improves the bearing capacity and service life of comb plate type retractor device.When
The spacing of bridge expanssion joint is as the same when reducing.
It is understood that embodiment of above is merely to illustrate that principle of the present utility model and used exemplary
Embodiment, but the utility model is not limited thereto.For those skilled in the art, this is not being departed from
In the case of the spirit and essence of utility model, various changes and modifications can be made therein, and these variations and modifications are also considered as this reality
With new protection domain.
Claims (8)
1. a kind of monoblock type comb plate type bridge extension joint, including：Quiet fishback, dynamic fishback, support beam, support case, its
It is characterised by,
Quiet fishback and dynamic fishback are directly connected in the support case of bridge both sides respectively, and pass through anchor rib and bridge both sides bridge
Platform is connected；Sliding support is provided between support beam and dynamic fishback, for providing support for dynamic fishback and alleviating driving
Impact；The upper and lower surface of support beam posts stainless steel slide plate, in order to which bearing drives deformed steel to be slided in support beam；Slide
The surface that bearing contacts with support beam is provided with U-type groove, and the width of the U-type groove is more than the width of support beam；Support beam sides
Limited block is provided with support case side, for playing position-limiting action in the displacement along bridge floor direction to support beam, prevents from propping up
Support beam pulls and fishback dieback.
2. monoblock type comb plate type bridge extension joint according to claim 1, it is characterised in that in the support beam also
Bearing and compressing support are provided with, the one side contacted with support beam is provided with U-type groove, and the U-type groove inner surface is sticked and had
It polyfluortetraethylene plate, with reducing friction resistance, while also effectively can prevent bearing from slipping, and play to support beam in in-plane
On swing position-limiting action.
3. monoblock type comb plate type bridge extension joint according to claim 2, it is characterised in that in the support beam
Compressing support and bearing bottom are provided with pin-and-hole, coordinate the pin on support case to achieve a fixed connection.
4. the monoblock type comb plate type bridge extension joint according to Claims 2 or 3, it is characterised in that described to slide branch
Seat, bearing and compressing support are rubber supports, are passed through for while retractor device bearing capacity is increased, alleviating driving
When impact.
5. monoblock type comb plate type bridge extension joint according to claim 4, it is characterised in that the rubber support leads to
Pin is crossed to be connected with support beam.
6. monoblock type comb plate type bridge extension joint according to claim 3, it is characterised in that including at least one set of quiet
Fishback and dynamic fishback, quiet fishback and dynamic fishback are made up of rolled plate.
7. monoblock type comb plate type bridge extension joint according to claim 6, it is characterised in that the quiet fishback and
Dynamic fishback is equipped with multiple through holes respectively in the both side surface close to abutment, and the pouring and observation for on-site concrete are mixed
Solidifying soil tamps situation.
8. monoblock type comb plate type bridge extension joint according to claim 6, it is characterised in that described quiet fishback
It is connected with dynamic fishback by anchor rib with support case, connection horizontal bar is provided between adjacent anchor rib, to strengthen anchorage effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720794009.3U CN206873283U (en) | 2017-07-03 | 2017-07-03 | A kind of monoblock type comb plate type bridge extension joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720794009.3U CN206873283U (en) | 2017-07-03 | 2017-07-03 | A kind of monoblock type comb plate type bridge extension joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206873283U true CN206873283U (en) | 2018-01-12 |
Family
ID=61331927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720794009.3U Expired - Fee Related CN206873283U (en) | 2017-07-03 | 2017-07-03 | A kind of monoblock type comb plate type bridge extension joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206873283U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440638A (en) * | 2018-12-26 | 2019-03-08 | 四川金贝建设工程有限公司 | A kind of comb-tooth bridge expansion device and bridge |
-
2017
- 2017-07-03 CN CN201720794009.3U patent/CN206873283U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440638A (en) * | 2018-12-26 | 2019-03-08 | 四川金贝建设工程有限公司 | A kind of comb-tooth bridge expansion device and bridge |
| CN109440638B (en) * | 2018-12-26 | 2024-03-26 | 四川轩可洋建设工程有限公司 | Comb-tooth type bridge expansion device and bridge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108103928A (en) | A kind of connection structure and construction method of multispan freely-supported bridge expanssion joint | |
| CN108330805B (en) | Structure for improving performance of composite beam | |
| CN111764267A (en) | Swing type self-resetting support | |
| CN109338876A (en) | A kind of embedded fishback telescopic device and application method | |
| CN112575674A (en) | Combined multistage three-dimensional anti-seismic bridge limiting device based on BRB technology | |
| CN106567326A (en) | Parallel double-rope type damping block having self-reset function | |
| CN205242238U (en) | Be applied to self anchored suspension bridge's main girder structure | |
| CN206873283U (en) | A kind of monoblock type comb plate type bridge extension joint | |
| CN201695338U (en) | Steel beam jacking device for cantilever assembly | |
| CN110965466B (en) | Vibration-damping noise-reducing shockproof expansion device and method | |
| CN201321598Y (en) | Multi-directionally displaced bridge expansion joint | |
| CN106121144B (en) | A kind of spacing bearing of concrete staircase damping | |
| CN208136711U (en) | It is a kind of suitable for steel bridge or the anti-pulling support of steel reinforced concrete composite beam bridge | |
| CN206828906U (en) | A kind of temporary pavement bedding structure for Metro Deep Excavation | |
| CN206428550U (en) | A kind of novel integral crossing plates | |
| CN202073026U (en) | Vertical spacing and anti-drop-beam structure of bridge | |
| CN111764268A (en) | Self-resetting support | |
| CN108930201B (en) | Rail foundation | |
| CN208362898U (en) | A kind of Vibrationless expansion joint for highway bridge | |
| CN107740310A (en) | A kind of novel high-elasticity vibration damping iron chair | |
| CN204529121U (en) | Large-scale bridge crane heightening device | |
| CN209066192U (en) | Elastic long sleeper buried-type ballastless track structure on a kind of Railway Steel Truss Girder Bridges | |
| CN208472469U (en) | A kind of pre-buried steel-rail structure of suspension type monorail traffic | |
| CN207347918U (en) | A kind of comb-tooth-type bridge expansion joint installation | |
| CN207739160U (en) | A kind of Hanging Basket trussing entirety prepressing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20180112 Termination date: 20190703 |