CN206721661U - A kind of expansion gap device for large span magnetic floating traffic bridge - Google Patents
A kind of expansion gap device for large span magnetic floating traffic bridge Download PDFInfo
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- CN206721661U CN206721661U CN201720401736.9U CN201720401736U CN206721661U CN 206721661 U CN206721661 U CN 206721661U CN 201720401736 U CN201720401736 U CN 201720401736U CN 206721661 U CN206721661 U CN 206721661U
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- bridge
- connecting rod
- plush copper
- hole
- large span
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Abstract
The utility model discloses a kind of expansion gap device for large span magnetic floating traffic bridge, and its both ends is fixed on main bridge and access bridge and across beam-ends expansion joint；The expansion gap device includes more piece track girder, and joint dividing device is provided between two adjacent track girders；One in the track girder at both ends is connected by hold-down support with access bridge, and connect across beam-ends expansion joint by sliding support and main bridging, another is connect by hold-down support and sliding support with main bridging, remaining track girder is connect by sliding support and main bridging, and in suitable bridge to sliding support is between hold-down support；Joint dividing device includes connecting rod and plush copper；One in two adjacent track girders is provided with concave head of the accommodating plush copper in its internal motion, and another end sidewalls are fixedly connected with interlinking lever end, and the other end of connecting rod is connected with plush copper；The through hole that concave head includes the groove of accommodating plush copper and passed through for connecting rod.The utility model adapts to horizontal extension deformation and deflecting corners displacement, practical.
Description
Technical field
The large displacement expansion joint device in science of bridge building is the utility model is related to, is specifically that a kind of large span magnetic that is used for floats friendship
The expansion gap device of logical bridge.
Background technology
A kind of Chinese patent " big displacement bridge extension joint suitable for high-speed magnetic floatation traffic engineering " (Authorization Notice No. CN
202298456 U, authorized announcement date 2012.07.04) it is cleverly to design very much, there is the scattered uniform synchronization telescope of crack
The characteristics of, it is of the prior art such as our common automatic switch grid gates, but for big displacement bridge expanssion joint
Girder (access bridge), girder (main bridge) are accompanied by uncertain deflecting corners displacement in addition to horizontal extension deforms, that is to say, that
Retractor device is shelved on the on-plane surface with deflection deformation, so at work, the hinge chain leverage in existing apparatus
System will be by the flecition outside deformation plane, and therefore, hinge device mechanical " locking " phenomenon easily occurs and caused temporarily
When property failure, the reliability and useful life longevity of device work are influenceed, how much this is one potential for magnetic floating traffic
Potential safety hazard.
Utility model content
For problem present in background technology, the purpose of this utility model is to propose that a kind of large span magnetic that is used for floats friendship
The expansion gap device of logical bridge, is magnetic to adapt to limitation requirement of the magnetic floating traffic engineering to the maximal dilation amount of bridge expanssion joint
The floating big span length's bridge construction of traffic provides important technology and supported.
To reach above-mentioned purpose, a kind of expansion joint for large span magnetic floating traffic bridge of the utility model design fills
Put, it is characterised in that its both ends is fixed on main bridge and access bridge and across the beam-ends expansion joint between main bridge and access bridge；This is flexible
Seam device includes more piece track girder, and joint dividing device is provided between two adjacent track girders；One in the track girder at both ends
It is connected with access bridge by hold-down support, and is connect across the beam-ends expansion joint by sliding support and main bridging, another passes through
Hold-down support and sliding support are connect with main bridging, and remaining track girder is connect by sliding support and main bridging, and in Shun Qiao
To sliding support is between hold-down support；The joint dividing device includes connecting rod and plush copper；One in two adjacent track girders
Provided with concave head of the plush copper in its internal motion is housed, another end sidewalls are fixedly connected with interlinking lever end, connecting rod
The other end is connected with plush copper；The concave head includes the through hole for housing the groove of the plush copper and being passed through for connecting rod.
Preferably, host bridge surface is provided with is slidably connected to described along the chute along bridge to setting, the sliding support
In chute.
Preferably, the amount of exercise sum of the joint dividing device is more than the width at the beam-ends expansion joint.
Preferably, the plush copper is cuboid, and its side side wall is connected with connecting rod, and its top surface and bottom surface are round and smooth
Cambered surface, and be cambered surface transition between the side wall and connecting rod being connected with connecting rod；The groove along bridge to width be more than it is described convex
Head along bridge to width；The through hole end is provided with the circular arc being adapted to the cambered surface transition.
Preferably, the through hole is bell mouth shape, and close to the plush copper at small diameter.
As another preferred scheme, the plush copper includes sliding block and being rotatablely connected with the sliding block in the sliding block
Bulb；The groove can house the sliding block and the groove along bridge to width be more than the sliding block along bridge to width
Degree；The connecting rod is connected with the bulb.
Preferably, passage is provided with the sliding block, the both ends of the passage are located at respectively hangs down with slide block movement direction
In two straight relative side walls.
Preferably, the through hole includes the first through hole on sliding block and the second through hole on track girder.
It is further preferred that when sliding block is located most closely to the extreme position of adjacent track girder, the first through hole and
Second through hole can form the bell mouth shape seamlessly transitted, and close to the bulb at small diameter.
It is further preferred that the first through hole is close to the bulb at bell mouth shape and small diameter, described second
The diameter D of through hole and the diameter d of the connecting rod relation is：D≥1.2d.
The beneficial effects of the utility model are：First, realized in form in a manner of beam upper beam and big displacement is stretched automatically
It is separated into several small displacement dilatations；2nd, the various modifications posture of girder can be adapted to very well, it is ensured that flexible and flexure is certainly
As smooth, the reliability of performance is very high；3rd, without the line service required by mechanical device, have good
Useful life longevity.The utility model can not only adaptation level dilatation also adapt to deflecting corners displacement, practicality is very strong,
And can apply to be not limited on the various Loads of Long-span Bridges of magnetic floating traffic bridge, for improving the workability of expanded joint structure
Energy.
Brief description of the drawings
Fig. 1~Fig. 4 is knot of the utility model under beam-ends expansion joint minimum, middle, maximum, four kinds of states of deflection deformation
Structure schematic diagram；
Fig. 5 is the structural representation of the utility model joint dividing device embodiment one；
Fig. 6 is Fig. 5 Section A-A figure；
Fig. 7 be the utility model joint dividing device embodiment and structural representation；
In figure：Main bridge 1, access bridge 2, beam-ends expansion joint 3, track girder 4, hold-down support 5, sliding support 6, chute 7, connecting rod 8,
Plush copper 9 (sliding block 9.1, bulb 9.2), concave head 10, groove 11, through hole 12 (first through hole 12.1, the second through hole 12.2), passage
13。
Embodiment
Below by Fig. 1~Fig. 7 and the modes of some alternative embodiments of the present utility model is enumerated, to the utility model
Technical scheme (including optimal technical scheme) be described in further detail, any technical characteristic in the present embodiment and appoint
What technical scheme does not limit the scope of protection of the utility model.
As shown in Figure 1 to 4, a kind of expansion gap device for large span magnetic floating traffic bridge disclosed in the present embodiment,
Its both ends is fixed on main bridge 1 and access bridge 2 and across the beam-ends expansion joint 3 between main bridge 1 and access bridge 2；The expansion gap device bag
More piece track girder 4 is included, joint dividing device is provided between two adjacent track girders 4；One in the track girder 4 at both ends by solid
Determine bearing 5 to be connected with access bridge 2, and be connected across the beam-ends expansion joint 3 by sliding support 6 with main bridge 1, another is positioned at end
The track girder 4 in portion is connected by hold-down support 5 and sliding support 6 with main bridge 1, remaining track girder 4 be by sliding support 6 with
Main bridge 1 connects, and in suitable bridge to sliding support 6 is between hold-down support 5；The joint dividing device includes connecting rod 8 and plush copper
9；One in two adjacent track girders 4 is provided with the accommodating plush copper 9 in the concave head 10 of its internal motion, another end side
Wall is fixedly connected with the end of connecting rod 8, and the other end of connecting rod 8 is connected with plush copper 9；The concave head 10 includes housing the plush copper 9
Groove 11 and the through hole 12 passed through for connecting rod 8.The displacement of the motion in the concave head 10 of plush copper 9 can single joint dividing device motion
Amount.
Preferably, the surface of host bridge 1 is provided with along the chute 7 along bridge to setting, the sliding support 6 and is slidably connected to institute
State in chute 7.
Preferably, the amount of exercise sum of the joint dividing device is more than the width at the beam-ends expansion joint 3.
Fig. 1 is the slit width minimum state of beam-ends expansion joint 3, and now the parting of each joint dividing device is wide is in width minimum shape
State, Fig. 2 are during the slit width of beam-ends expansion joint 3 increases, and near end and are the parting dresses of the track girder connect with main bridging
Put and take the lead in opening, then stop when it reaches parting width limit, start next joint dividing device immediately, gradually open according to this each
For parting to Fig. 3 slit width maximum rating, parting width sum, which should be slightly bigger than, considers the maximum of beam-ends expansion joint 3 that corner influences
Value, and Fig. 4 is then the working condition that beam-ends corner displacement be present, from fig. 4, it can be seen that must take into consideration corner for girder beam slit width degree
Adverse effect (prior art can not handle this such a deflecting corners displacement).
As shown in Figure 5 and Figure 6, a kind of embodiment of joint dividing device is shown in figure：The plush copper 9 is cuboid, its
Side side wall is connected with connecting rod 8, and its top surface and bottom surface are round and smooth cambered surface, and are arc between the side wall and connecting rod 8 being connected with connecting rod 8
Face transition；The groove 11 along bridge to width be more than the plush copper 9 along bridge to width；The end of through hole 12 is provided with
The circular arc being adapted to the cambered surface transition.Preferably, the through hole 12 is bell mouth shape, and close to the plush copper at small diameter
9.Round and smooth cambered surface, cambered surface transition, circular arc are provided to adapt to the first of girder corner and the needs, wherein access bridge end of deflection deformation
It is larger to locate the corner of joint, to meet the corner envelope of overall calculation, this corner very little of remaining joint should be distinguished during making pair
Treat；Concave-convex joint can also be put into track soffit, thus without this problem, but performance slightly reduces, if entering in this respect
Row is flexible, falls within scope of protection of the utility model.
As shown in fig. 7, showing the another embodiment of joint dividing device in figure, the plush copper 9 includes sliding block 9.1 and position
In the bulb 9.2 with the sliding block 9.1 rotation connection in the sliding block 9.1；The groove 11 can house the sliding block 9.1 and
The groove 11 along bridge to width be more than the sliding block 9.1 along bridge to width；The connecting rod 8 and the bulb 9.2
Connection.Preferably, passage 13 is provided with the sliding block 9.1, the both ends of the passage 13 are located at respectively moves with sliding block 9.1
In two vertical relative side walls of direction, passage 13 air pressure can be avoided to produce resistance of taxing excessive (some air pressure be present has
Benefit).
In order to adapt to deflecting corners deformation, the through hole 12 includes the first through hole 12.1 on sliding block 9.1 and is located at
The second through hole 12.2 on track girder 4.Through hole 12 can use two ways：
Mode one, when sliding block 9.1 is located most closely to the extreme position of adjacent track girder 4, the first through hole 12.1
The bell mouth shape seamlessly transitted can be formed with the second through hole 12.2, and close to the bulb 9.2 at small diameter.
Mode two, the first through hole 12.1 are close to the bulb 9.2 described second at bell mouth shape and small diameter
The diameter D of through hole 12.2 and the diameter d of the connecting rod 8 relation is：D≥1.2d.
Two embodiments of joint dividing device are all that track girder 4 passes through joint dividing device when track girder 4 is under the flexible drive of main bridge
" limited displacement " and excite expanding-contracting action successively, big seam is decomposed into the functions of multiple cracks so as to realize.
It should be readily apparent to one skilled in the art that preferred embodiment of the present utility model is these are only, not with limitation
The utility model, all any modifications made under the spirit and principles of the utility model, combination, replacement, improvement etc. includes
Within the scope of protection of the utility model.
Claims (10)
- A kind of 1. expansion gap device for large span magnetic floating traffic bridge, it is characterised in that：The expansion gap device is that both ends are consolidated Due on main bridge (1) and access bridge (2) and across the beam-ends expansion joint (3) between main bridge (1) and access bridge (2), it includes more piece rail Road beam (4), joint dividing device is provided between adjacent two track girders (4)；One in the track girder (4) at both ends passes through fixation Bearing (5) is connected with access bridge (2), and is connected across the beam-ends expansion joint (3) by sliding support (6) with main bridge (1), another Individual to be connected by hold-down support (5) and sliding support (6) with main bridge (1), remaining track girder (4) is by sliding support (6) It is connected with main bridge (1), and in suitable bridge to sliding support (6) is located between hold-down support (5)；The joint dividing device includes connecting Bar (8) and plush copper (9)；One in adjacent two track girders (4) is provided with the concave head for housing the plush copper (9) in its internal motion (10), another end sidewalls are fixedly connected with connecting rod (8) end, and the other end of connecting rod (8) is connected with plush copper (9)；It is described Concave head (10) includes the through hole (12) for housing the groove (11) of the plush copper (9) and being passed through for connecting rod (8).
- 2. the expansion gap device according to claim 1 for large span magnetic floating traffic bridge, it is characterised in that：The master Bridge (1) surface is provided with along the chute (7) along bridge to setting, the sliding support (6) and is slidably connected in the chute (7).
- 3. the expansion gap device according to claim 1 for large span magnetic floating traffic bridge, it is characterised in that：Described point The amount of exercise sum for stitching device is more than the width of the beam-ends expansion joint (3).
- 4. the expansion gap device for large span magnetic floating traffic bridge according to claim 1 or 2 or 3, it is characterised in that： The plush copper (9) is cuboid, and its side side wall is connected with connecting rod (8), and its top surface and bottom surface are round and smooth cambered surface, and and connecting rod (8) it is cambered surface transition between the side wall of connection and connecting rod (8)；The groove (11) along bridge to width be more than the plush copper (9) along bridge to width；Through hole (12) end is provided with the circular arc being adapted to the cambered surface transition.
- 5. the expansion gap device according to claim 4 for large span magnetic floating traffic bridge, it is characterised in that：It is described logical Hole (12) is bell mouth shape, and close to the plush copper (9) at small diameter.
- 6. the expansion gap device for large span magnetic floating traffic bridge according to claim 1 or 2 or 3, it is characterised in that： The plush copper (9) includes sliding block (9.1) and the bulb with the sliding block (9.1) rotation connection in the sliding block 9.1 (9.2)；The groove (11) sliding block (9.1) can be housed and the groove (11) along bridge to width be more than the sliding block (9.1) along bridge to width；The connecting rod (8) is connected with the bulb (9.2).
- 7. the expansion gap device according to claim 6 for large span magnetic floating traffic bridge, it is characterised in that：The cunning Passage (13) is provided with block (9.1), the both ends of the passage (13) are respectively positioned at vertical with sliding block (9.1) direction of motion In two relative side walls.
- 8. the expansion gap device according to claim 6 for large span magnetic floating traffic bridge, it is characterised in that：It is described logical Hole (12) includes the first through hole (12.1) on sliding block (9.1) and the second through hole (12.2) on track girder (4).
- 9. the expansion gap device according to claim 8 for large span magnetic floating traffic bridge, it is characterised in that：Work as sliding block (9.1) when being located most closely to the extreme position of adjacent track girder (4), the first through hole (12.1) and the second through hole (12.2) The bell mouth shape seamlessly transitted can be formed, and close to the bulb (9.2) at small diameter.
- 10. the expansion gap device according to claim 8 for large span magnetic floating traffic bridge, it is characterised in that：It is described First through hole (12.1) be at bell mouth shape and small diameter close to the bulb (9.2), second through hole (12.2) it is straight Footpath D and the diameter d of the connecting rod (8) relation is：D≥1.2d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720401736.9U CN206721661U (en) | 2017-04-17 | 2017-04-17 | A kind of expansion gap device for large span magnetic floating traffic bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720401736.9U CN206721661U (en) | 2017-04-17 | 2017-04-17 | A kind of expansion gap device for large span magnetic floating traffic bridge |
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| CN206721661U true CN206721661U (en) | 2017-12-08 |
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| CN201720401736.9U Active CN206721661U (en) | 2017-04-17 | 2017-04-17 | A kind of expansion gap device for large span magnetic floating traffic bridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894334A (en) * | 2017-04-17 | 2017-06-27 | 中铁第四勘察设计院集团有限公司 | A kind of expansion gap device for large span magnetic floating traffic bridge |
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2017
- 2017-04-17 CN CN201720401736.9U patent/CN206721661U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894334A (en) * | 2017-04-17 | 2017-06-27 | 中铁第四勘察设计院集团有限公司 | A kind of expansion gap device for large span magnetic floating traffic bridge |
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