CN206956540U - Bridge anticollision girder falling broach expansion joint - Google Patents
Bridge anticollision girder falling broach expansion joint Download PDFInfo
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- CN206956540U CN206956540U CN201720537555.9U CN201720537555U CN206956540U CN 206956540 U CN206956540 U CN 206956540U CN 201720537555 U CN201720537555 U CN 201720537555U CN 206956540 U CN206956540 U CN 206956540U
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- fishback
- wire rope
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Abstract
It the utility model is related to a kind of bridge anticollision girder falling broach expansion joint, utilize existing bridge comb teeth retractor device, in the middle part of the thickness of fishback duct is opened up along the horizontal plane perpendicular to direction of traffic, penetrated in duct with high tensile flexible steel wire rope, and the steel wire rope of a certain amount of slackness of stroke design of the spacing requirement of gained is calculated according to bridge structure aseismic analysis, steel wire rope is fixed in the middle part of each fishback using fixing device.Under earthquake or other percussions, adjacent beam body close to when, will collide, the presence of high tensile flexible steel wire rope can control beam body further towards collision free, playing position-limiting action；When adjacent beam body away from when, it is possible to when falling beam danger, high tensile flexible steel wire rope is equally had an effect, the expansion of displacement between restraint beam, control fall beam generation.The utility model simple structure is saved with material, and anti-seismic performance is stable, production and easy to use, safety.
Description
Technical field
The utility model belongs to technical field of bridge engineering, in particular to a kind of bridge anticollision girder falling broach
Expansion joint.
Background technology
In recent decades, China's modernization construction is flourished, and Loads of Long-span Bridges, urban viaduct are largely built.While I
State is also an earthquake-prone countries, shows bridge beam end collision or even fall beam to be bridge in earthquake from conventional bridge seimic disaster census
In Common Diseases, cause great economic asset to lose.How could effectively ensure that bridge can also be used safely after shake,
Which type of antishock device should be taken to avoid the generation of the above situation.As the tie between Liang Yuliang --- expansion joint,
Increasingly it is valued by people.We need to find a kind of retractor device that can also play a role very well in earthquake.To keep away
To exempt from beam-ends collision and fall beam problem, domestic and foreign scholars carried out substantial amounts of beam-ends collision mechanism and falling-off prevention measures research, but such as
The research what carries out anticollision and spacing aspect using bridge comb teeth retractor device fast-developing in recent years more lacks.At present
Bridge extension joint do not have anticollision and limit function typically.
In view of above-mentioned widely used comb teeth retractor device existing a variety of deficiencies under geological process, therefore, it is necessary to
Bridge expanssion joint in prior art is improved further.We carry on the basis of comb teeth retractor device, drag-line technology
Go out a kind of simple and effective retractor device that can also play anticollision and position-limiting action very well in earthquake.
Utility model content
The purpose of this utility model is that comb teeth retractor device under easy and operative constraint severe earthquake action can be had by providing one kind
Relative displacement between beam-ends, buffering front and rear beam body phase are mutually collided, make to act synergistically between Bridge Beam, can effectively control Luo Liang and beam
Body damages, and reduces the bridge anticollision girder falling broach expansion joint that Bridges During Earthquake expansion joint is destroyed.
Bridge anticollision girder falling broach expansion joint, by fixed broach plate 1, movable fishback 2, high tensile flexible steel wire rope 3
Formed with wire rope fixing device 4, wherein：The side of fixed broach plate 1, which is fixed on, to be constructed, the tooth plate of the movable fishback 2
Planar profile is irregular curve shape, the tooth plate planar profile of the movable fishback 2 and the adjacent tooth plate of fixed broach plate 1
Between gap location profile be meshed, on tooth plate on movable fishback 2 insertion fixed broach plate 1 between corresponding tooth plate between
At gap；Fixed broach plate 1 and movable fishback 2 is set to form the mode of interlaced arrangement；Edge in the middle part of each tooth plate of fixed broach plate 1
Horizontal direction is provided with duct in the plane of direction of traffic, is hung down in the horizontal direction in the middle part of each tooth plate of movable fishback 2
Directly in being provided with duct in the plane of direction of traffic, the duct on duct and movable fishback 2 on the fixed broach plate 1 is same
In one horizontal plane, the high tensile flexible steel wire rope 3 sequentially passes through the duct of first tooth plate on fixed broach plate 1, movable broach
The duct of first tooth plate on plate 2, the duct of second tooth plate on fixed broach plate 1, second tooth plate on movable fishback 2
The duct of 3rd tooth plate on duct, fixed broach plate 1, the duct of the 3rd tooth plate on movable fishback 2, the like, will
Fixed broach plate 1 and movable fishback 2 link together, and the slackness of the steel wire rope calculates according to bridge structure aseismic analysis
The stroke of the spacing requirement of gained is designed；Tooth of the steel wire rope in the middle part of the tooth plate of fixed broach plate 1 or in movable fishback 2
Fixed in the middle part of plate by wire rope fixing device 4.
In the utility model, movable fishback 2 can be moved planar.It is high-strength when movable fishback 2 planar moves
Flexible wire ropes 3 limit the relative displacement between fixed broach plate 1 and movable fishback 2.
The beneficial effects of the utility model are：
The 1st, the fixed broach plate of comb teeth retractor device and movable fishback are set to the high tensile flexible steel of certain slackness
Cord is connected together in direction across bridge, and bridge whole system can be made to keep certain cooperative bearing.
2nd, beam-ends can be avoided by the cooperative bearing of rope after a certain amount of relative displacement occurs under geological process, between beam
Collide and fall the generation of beam phenomenon.
3rd, the utility model be fully retained former comb teeth retractor device deformation and stress a little.
In a word, the utility model simple structure material usage saves, and anti-seismic performance is stable, production and easy to use, safety.
Brief description of the drawings
Fig. 1 be bridge anticollision girder falling broach expansion joint broach close to when floor map；
Fig. 2 is floor map when bridge anticollision girder falling broach expansion joint broach separates；
Label in figure：1 it is fixed broach plate, 2 be movable fishback, 3 be high tensile flexible steel wire rope, 4 is that steel wire rope is fixed
Device.
Embodiment
In order that the technical essence of the utility model can be more clearly understood in the auditor of the Patent Office especially public
And beneficial effect, applicant will elaborate with reference to accompanying drawing by way of examples below, but to the description of embodiment
Be not the limitation to the utility model, it is any it is made according to the utility model design be only it is formal rather than
Substantial equivalent transformation is regarded as the technical solution of the utility model category.
Embodiment 1
Bridge anticollision girder falling broach expansion joint as depicted in figs. 1 and 2, includes fixed broach plate 1, movable fishback
2nd, high tensile flexible steel wire rope 3 and wire rope fixing device 4.The tooth plate planar profile of movable fishback 2 is irregular curve shape,
Gap location profile between the tooth plate planar profile tooth plate adjacent with fixed broach plate 1 of movable fishback 2 is meshed, fixed comb
Tooth plate 1, the tooth plate of movable fishback 2 have certain thickness vertical, are hung down in the horizontal direction in the middle part of each tooth plate of fixed broach plate 1
Directly in being provided with duct in the plane of direction of traffic, each tooth plate middle part of movable fishback 2 is in the horizontal direction perpendicular to driving side
To plane in be provided with duct, the duct on duct and movable fishback 2 on the fixed broach plate 1 is in same level
Interior, high tensile flexible steel wire rope 3 sequentially passes through the duct of first tooth plate on fixed broach plate 1, first tooth on movable fishback 2
The duct of second tooth plate on the duct of plate, fixed broach plate 1, the duct of second tooth plate, fixed broach on movable fishback 2
The duct of 3rd tooth plate on plate 1, the duct of the 3rd tooth plate on movable fishback 2, the like, until fixed broach plate 1
The duct of n-th tooth plate on the duct of upper n-th tooth plate, movable fishback 2, thus by fixed broach plate 1 and movable comb
Tooth plate 2 links together, and the slackness of the steel wire rope calculates the flexible of the spacing requirement of gained according to bridge structure aseismic analysis
Amount is designed；Steel wire rope 3 is in the middle part of each tooth plate of fixed broach plate 1 or in each tooth plate of movable fishback 2
Portion is fixed by wire rope fixing device 4.
Movable fishback 2 can be moved planar, to meet both ends beam body telescopic displacement amount.High tensile flexible steel wire rope 3
Some sections of relatively independent steel wire ropes are planar formed by being fixed on the wire rope fixing device 4 in the middle part of each piece of tooth plate,
After fixed broach plate 1, the relative displacement of movable fishback 2 reach the rope capacity of setting, steel wire rope plays a role, limitation two
The further relative displacement of end tooth plate.
One of technical essential of technical solutions of the utility model is using being reeved in plane, simultaneously in fishback retractor device
Play the position-limiting action of anticollision and girder falling.Common comb teeth retractor device is under severe earthquake action, fixed broach plate and movable comb
When larger relative displacement occurs for tooth plate, position-limiting action can not be played, so as to cause both ends to collide and fall beam.By in fishback
High tensile flexible steel wire rope is set in plane, and rationally determines its relaxed length, relative displacement between effective control beam can be played,
So as to restrainer and the effect of collision, while the deformation of retractor device under normal usage is not influenceed.
Claims (2)
1. bridge anticollision girder falling broach expansion joint, by fixed broach plate (1), movable fishback (2), high tensile flexible steel wire rope
(3) formed with wire rope fixing device (4), it is characterised in that：Fixed broach plate (1) side, which is fixed on, to be constructed, the activity
The tooth plate planar profile of fishback (2) is irregular curve shape, the tooth plate planar profile of the movable fishback (2) and fixation
Gap location profile between the adjacent tooth plate of fishback (1) is meshed, the tooth plate insertion fixed broach plate on movable fishback (2)
(1) gap location between corresponding tooth plate；Fixed broach plate (1) and movable fishback (2) is set to form the mode of interlaced arrangement；
Duct, movable broach are provided with the plane of direction of traffic in the horizontal direction in the middle part of each tooth plate of fixed broach plate (1)
Duct, the fixed broach plate (1) are provided with the plane of direction of traffic in the horizontal direction in the middle part of each tooth plate of plate (2)
On duct and movable fishback (2) on duct in same level, the high tensile flexible steel wire rope (3) sequentially passes through solid
Determine the duct of upper first tooth plate of fishback (1), the duct of upper first tooth plate of movable fishback (1), on fixed broach plate (1)
The duct of second tooth plate, the duct of upper second tooth plate of movable fishback (2), the 3rd tooth plate on fixed broach plate (1)
The duct of 3rd tooth plate on duct, movable fishback (1), the like, by fixed broach plate (1) and movable fishback (2)
Link together, steel wire rope passes through steel wire in the middle part of the tooth plate in the middle part of the tooth plate of fixed broach plate (1) or in movable fishback (2)
Fixing device of restricting (4) is fixed.
2. bridge anticollision girder falling broach expansion joint according to claim 1, it is characterised in that movable fishback (2)
When planar moving, the relative position between high tensile flexible steel wire rope (3) limitation fixed broach plate (1) and movable fishback (2)
Move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720537555.9U CN206956540U (en) | 2017-05-16 | 2017-05-16 | Bridge anticollision girder falling broach expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720537555.9U CN206956540U (en) | 2017-05-16 | 2017-05-16 | Bridge anticollision girder falling broach expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206956540U true CN206956540U (en) | 2018-02-02 |
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ID=61374956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720537555.9U Active CN206956540U (en) | 2017-05-16 | 2017-05-16 | Bridge anticollision girder falling broach expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206956540U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965466A (en) * | 2019-11-27 | 2020-04-07 | 同济大学 | Vibration-damping noise-reducing shockproof expansion device and method |
-
2017
- 2017-05-16 CN CN201720537555.9U patent/CN206956540U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110965466A (en) * | 2019-11-27 | 2020-04-07 | 同济大学 | Vibration-damping noise-reducing shockproof expansion device and method |
| CN110965466B (en) * | 2019-11-27 | 2021-03-30 | 同济大学 | Vibration-damping noise-reducing shockproof expansion device and method |
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