CN205839580U - Uniformly displacement drag-line modulus expansion joint - Google Patents
Uniformly displacement drag-line modulus expansion joint Download PDFInfo
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- CN205839580U CN205839580U CN201620574642.7U CN201620574642U CN205839580U CN 205839580 U CN205839580 U CN 205839580U CN 201620574642 U CN201620574642 U CN 201620574642U CN 205839580 U CN205839580 U CN 205839580U
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- crossbeam
- expansion joint
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- drag
- displacement
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Abstract
The displacement control systems such as this utility model relates to a kind of uniformly displacement drag-line modulus expansion joint, the displacement control system such as including support system, longeron and hinge type, hinge type are connected with modulus expansion joint by the slippage slot bottom longeron, it is achieved displacement regulation and control.Wherein support system is by crossbeam, compressing support, bearing and carriage composition, and compressing support and bearing are made by politef slide plate, are individually positioned in the upper and lower surface of crossbeam, and consolidate with carriage.The chain bar that the displacement control systems such as hinge type are isometric has the rotational slip pin of chain boom end and the rotational pin in chain bar centre position to be formed by connecting respectively.For reducing the impact of frictional resistance further, crossbeam two ends are sliding end, and are the beam that falls preventing crossbeam, are connected as a single entity with controlling casing by crossbeam with elastomeric cords.This utility model is meeting on the premise of stretching between normal service condition underbeam be, it is achieved that uniformly stitch wide purpose between the longeron of modulus expansion joint.Additionally, have great importance for girder falling, collision under geological process.
Description
Technical field
This utility model belongs to technical field of bridge engineering, uniformly conjugates drag-line modulus in particular to one and stretches
Seam.
Background technology
Along with the progress of modernization construction, Longspan Bridge, long connection multispan bridge construction are increasing.Modulus expansion joint,
As a kind of simple in construction, length in service life, expansion gap device easy for installation, it is increasingly being used in large span and long connection
Multiple span bridge is to adapt to contraction distortion bigger between the normal service condition second line of a couplet.
Total displacement amount is divided into multiple displacement unit by modulus expansion joint, and top water proof rubber avoids water and flows into flexible
Seam, effectively prevent the corrosion of bridge superstructure.Additionally, to have derived many beam types, single beam type etc. different at modulus expansion joint
Load bearing system, single beam type load bearing system is divided into again grating type and the multiple multi-form such as rotary, becomes adapting to different seam width
Change scope, it is ensured that stationarity when vehicle passes through and comfortableness.
Tradition modulus expansion joint crossbeam is changed into two ends and slides by inventor Yuan ten thousand city, and will support crossbeam with the drag-line run through
Link together with control chamber, it is proposed that drag-line modulus expansion joint device.Drag-line modulus expansion joint can effectively prevent earthquake
The lower excessive collision caused of beam end displacement of effect and the beam that falls, so, expansion joint is from as adapting to a kind of structure of dilatation between beam
Make facility and become a kind of anticollision, the antishock device of the beam that falls.But, drag-line modulus expansion joint remains longeron break joint width not
Uniform phenomenon, is embodied in: when temperature raises expansion joint compression, be wider than away from fixing end near position fixed ends seam
Place's longeron break joint width；On the contrary, when temperature reduces expansion joint stretching, the seam width at position fixed ends is less than away from fixing end
Place's longeron break joint width.And research and analyse discovery: the uneven road-ability that not only has a strong impact on of expansion joint width, and to stretching
Impact characteristics, fatigue properties and the vibration characteristics of contracting seam produces impact, and may increase generation in driving conditions further
Noise.
It is therefore desirable to carry out exploring to propose the most effective side for the phenomenon that expansion joint longeron break joint width is uneven
Method, so that longeron displacement is uniformly, finally realizes stitching width uniformly between the longeron of modulus expansion joint.
Summary of the invention
For solving the wide uneven problem of modulus expansion joint seam, the purpose of this utility model is to provide a kind of simple in construction
Uniformly displacement drag-line modulus expansion joint.
In this utility model, uniformly displacement drag-line modulus expansion joint, it is characterised in that described expansion joint includes supporting system
System, middle longeron 4, limit longeron 9, hinge type displacement control system and drag-line 11；Described support system by crossbeam 7, compressing support 6,
Bearing 5 and carriage 8 form, and compressing support 6 and bearing 5 are made by polyfluortetraethylene plate, and crossbeam 7 is through supporting
Frame 8, its upper surface is connected by compressing support 6 is fixing with carriage 8, and its lower surface is fixed with carriage 8 by bearing 5
Connect；Middle longeron 4 is arranged vertically with support system, and middle longeron is fixing with crossbeam 7 to be connected；Described hinge type displacement control system by
Form Deng long-chain bar 1, rotational slip pin 2 and rotational pin 3, wait long-chain bar 1 to be connected the long-chains such as formation one group by rotational slip pin 2
Bar group, the long-chain bar group such as two groups is connected by the rotational pin 3 being positioned at etc. in the middle part of long-chain bar 1, constitutes hinge type structure, make each long-chain of Denging
Bar 1 Positive rotational, is provided with straight skidding groove 12, the rotational slip of described hinge type displacement control system bottom described middle longeron 4
Pin 2 is connected with middle longeron 4 by the straight skidding groove 12 bottom middle longeron；Crossbeam 7 both sides are provided with control chamber 10, crossbeam 7 and control
Case 10 processed is connected by drag-line 11.
In this utility model, the quantity of described middle longeron 4 is determined on a case-by-case basis.
In this utility model, the both sides of described middle longeron 4 arrange side bar 9, and side bar 9 is arranged vertically with crossbeam 7, side bar 9 liang
End is fixed on girder.
Hinge type displacement described in the utility model regulation system is that the chain bar that length is identical passes through chain bar centre position
The rotational slip pin of rotational pin and end is formed by connecting.This hinge type displacement regulation system is embedding by the rotational slip pin of end
Enter the combination realizing displacement control system and support system bottom longeron in longitudinal sliding slot.When expansion joint dilatation,
The slot sliding along longeron of the rotational slip pin at the chain bar two ends of this displacement regulation system, between adjacent rotated sliding pin laterally
Distance reduces, and drive each longeron laterally waits displacement movement, the contraction displacement produced at expansion joint due to the variations in temperature of girder
Being delivered on each longeron by mechanical adjustment mode assured uniform, final realization stitches wide uniformity.
Tradition modulus expansion joint crossbeam is that one end is fixed one end and slided, expansion joint in telescopic process, power by movable end to
Fixing end transmission, and affected by frictional resistance between beam in length and breadth each in transmittance process, act on the power size on every longeron
Difference, final modulus expansion joint each longeron displacement is different, causes wide uneven of longeron break joint.The technical side that the present invention provides
The advantage of case:
The uniformly displacement drag-line modulus expansion joint that this utility model provides is the impact reducing frictional resistance, by beam in length and breadth
Compressing support and bearing use politef slide plate to make so that the frictional resistance between beam significantly reduces in length and breadth.
For reducing frictional resistance impact between beam in length and breadth further, it is achieved the homogenization that longeron break joint is wide, this utility model
Original one end is fixed one end slip and changes two ends slip into, shorten the bang path of power, reduce the stack combinations of frictional resistance
Impact, reduces in power transmittance process frictional resistance impact between beam in length and breadth, reduces the difference of each longeron stress.
Additionally, this utility model provides separate support system and displacement control system, displacement is shunk at expansion joint
Can be delivered to each longeron uniformly and effectively, final realization stitches wide homogenization.
For avoiding crossbeam and the excessive beam that falls causing crossbeam of relative displacement controlled between casing, this utility model crossbeam with
Control to arrange the drag-line run through between casing, both are linked together, it is to avoid crossbeam falls beam.Additionally, by drag-line is arranged one
Fixed free path so that drag-line is possible to prevent displacement excessive on the premise of expansion joint normally uses and touching of causing not affecting
Hit.
In this utility model, tradition is relied on the elastic displacement of shear spring and holddown spring by hinge type displacement regulation system
Control system becomes mechanical displacement control system, reduces the impact of frictional resistance, the uniform displacement of the most each longeron, it is achieved vertical
The uniformity that beam break joint is wide.
In a word, this utility model is that a kind of big displacement uniformly conjugates drag-line modulus expansion joint, it is intended that solve modulus expansion joint
The phenomenon that longeron break joint width is uneven.
Accompanying drawing explanation
Fig. 1 is that hinge type displacement regulates system；
Fig. 2 is uniformly to conjugate drag-line modulus expansion joint axonometric chart；
Fig. 3 is uniformly to conjugate drag-line modulus expansion joint plane graph；
Fig. 4 is hinge type displacement regulation system and longeron connecting structure；
Fig. 5 is support system connecting structure；
Fig. 6 is rotational pin structure；
Fig. 7 is rotational slip pin structure；
Fig. 8 is the hinge type displacement regulation wide regulation mechanism of system seam.,
Wherein:
Whereind1 stretches displacement between front longitudinal for expansion joint, and 2lFor waiting length of long-chain bar,aBefore stretching for expansion joint
Deng long-chain bar and bridge indulge bridge to angle (acute angle),a +bFor expansion joint wait after flexible long-chain bar and bridge indulge bridge to
Angle (acute angle).△dFor expansion joint each longeron break joint width changing value.
Label in figure: 1 is chain bar, 2 is rotational slip pin, and 3 is rotational pin, and 4 is middle longeron, and 5 is bearing, and 6 is pressure
Tight bearing, 7 is crossbeam, and 8 is carriage, and 9 is side bar, and 10 is control chamber, and 11 is drag-line, and 12 is straight skidding groove.
Detailed description of the invention
For enable the auditor especially public of Patent Office be more clearly understood from technical spirit of the present utility model and
Beneficial effect, applicant elaborates combining accompanying drawing by way of example below.But the description to embodiment is equal
To restriction of the present utility model, any according to being only done by this utility model design be the most pro forma unsubstantiality
Equivalent transformation be regarded as the technical solution of the utility model category.
Embodiment 1
Uniformly displacement drag-line modulus expansion joint, comprises support system, middle longeron 4, hinge type displacement control system and drag-line
11.Wherein support system is made up of crossbeam 7, compressing support 6, bearing 5 and carriage 8.Compressing support 6 and bearing
5 are made up of politef slide plate, are individually positioned in the upper and lower surface of crossbeam 7, and compressing support 6 and bearing 5 points
Not consolidating with carriage 8, its connected mode is as shown in Figure 5；Middle longeron 4, side bar 9 are mutually perpendicular to crossbeam 7, and support system
Using pin to consolidate with middle longeron 4, side bar 9 is anchored on girder.
This uniformly conjugates drag-line modulus expansion joint displacement control system by the chain bar 1 of equal length by chain bar centre position
The rotational slip pin 2 of rotational pin 3 and chain boom end is formed by connecting, as it is shown in figure 1, and chain bar to be ensured can transport reliably
Dynamic.
Hinge type displacement control system is by being installed to rotational slip pin 2 in the straight skidding groove 12 bottom longeron, real
The combination of existing displacement control system and support system, when expansion joint dilatation, the rotational slip pin 2 at chain bar 1 two ends along in
Straight skidding groove 12 sliding on longeron 4,2 lateral separations of adjacent rotated sliding pin reduce, band disorder of internal organs longeron 4, side bar 9
Displacement movement, final realization is laterally waited to stitch wide uniformity.
Drag-line 11 is connected between crossbeam 7 and control chamber 10, runs through drag-line 11 two ends and is anchored at respectively on control chamber 10, keeps away
Exempt from relative displacement between crossbeam and control chamber 10 excessive and cause middle longeron 4 to fall beam situation, and by arrange rational drag-line from
Prevented the pressurization between middle longeron 4, side bar 9 from destroying by journey.
One of technical essential of technical solutions of the utility model reduces the frictional resistance between beam in length and breadth.For reducing friction resistance
The impact of power, is made up compressing support 6 and bearing 5 of politef, so middle friction resistance between longeron 4 and crossbeam 7
Power will significantly reduce, additionally, the vertical rigidity at expansion joint is also improved.
The two of the technical essential of technical solutions of the utility model are the bang paths of shortening power.The horizontal stroke at tradition modulus expansion joint
Beam is that one end slip is fixed in one end, and during the dilatation of expansion joint, motion is to shift to fixing end by movable end, in this mistake
Cheng Zhongli is transmitted to fixing end by movable end, and the effect of frictional resistance makes to be delivered to each indulging between each longeron and crossbeam
Power on beam is unequal, ultimately results in the uneven of longeron displacement, so, first this utility model releases the fixing of crossbeam 7
End constraint, becomes the version all slided in two ends, and such power Path of Force Transfer in transmittance process shortens, and improves to a certain extent
The uniformity of power between each middle longeron 4, side bar 9.
Three drag-lines 11 of the technical essential of technical solutions of the utility model are spacing.Crossbeam 7 two ends all become sliding mode, for
Avoiding crossbeam 7 and control that 10 displacements between casing are excessive causes beam, collision, this utility model will support crossbeam and control casing
Between link together, as shown in Figure 2 with the drag-line 11 run through.By adjusting drag-line 11 free path so that stretch not affecting
On the premise of the normal work of contracting seam, can effectively control relative displacement between beam, thus restrainer and collision.
The four of the technical essential of technical solutions of the utility model are the displacement control systems such as hinge type.Realize this hinge type
Deng the displacement regulatory function of displacement control system, first have to ensure that the bar length between rotational pin 3 and rotational slip pin 2 is equal, its
Secondary realize being reliably connected of such displacement control system.And this uniformly achieves support system in displacement drag-line modulus expansion joint
And the separation of stress between displacement control system, and can be with modular manufacturing.
As a kind of conversion of this utility model embodiment, hinge type position can be increased according to modulus expansion joint longeron quantity
Move the length of control system.
As a kind of change of this utility model embodiment, can need more according to the stress of hinge type displacement control system
Change the material of chain bar, select suitable dimension to reach preferable rigidity requirement.
Claims (2)
1. uniformly conjugate drag-line modulus expansion joint, it is characterised in that described expansion joint includes support system, middle longeron (4), Bian Zong
Beam (9), hinge type displacement control system and drag-line (11)；Described support system is by crossbeam (7), compressing support (6), bearing
(5) forming with carriage (8), compressing support (6) and bearing (5) are made by polyfluortetraethylene plate, and crossbeam (7) is through propping up
Support frame (8), its upper surface is connected by compressing support 6 and carriage (8) are fixing, and its lower surface is by bearing (5) and props up
The fixing connection of support frame (8)；Middle longeron (4) is arranged vertically with support system, and middle longeron is fixing with crossbeam (7) to be connected；Described hinge
Chain type displacement control system is made up of long-chain bar such as grade (1), rotational slip pin (2) and rotational pin (3), several long-chain bar such as grades (1)
It is in turn connected to form the long-chain bar group such as a group by rotational slip pin 2, corresponding in the long-chain bar groups such as two groups each waits long-chain
Bar (1) middle part is connected by rotational pin (3), constitutes hinge type structure, makes each long-chain chain bar (1) Positive rotational of Denging, described in indulge
Beam (4) bottom is provided with straight skidding groove (12), and the rotational slip pin (2) of described hinge type displacement control system is by the bottom of middle longeron
The straight skidding groove (12) in portion is installed on middle longeron (4)；Crossbeam (7) both sides are provided with control chamber (10), and crossbeam (7) passes through drag-line
(11) control chamber (10) is connected.
Uniform displacement drag-line modulus expansion joint the most according to claim 1, it is characterised in that the two of described middle longeron (4)
Side arranges side bar (9), and side bar (9) is arranged vertically with crossbeam (7), and side bar (9) two ends are fixed on girder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620574642.7U CN205839580U (en) | 2016-06-13 | 2016-06-13 | Uniformly displacement drag-line modulus expansion joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620574642.7U CN205839580U (en) | 2016-06-13 | 2016-06-13 | Uniformly displacement drag-line modulus expansion joint |
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| Publication Number | Publication Date |
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| CN205839580U true CN205839580U (en) | 2016-12-28 |
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| CN201620574642.7U Active CN205839580U (en) | 2016-06-13 | 2016-06-13 | Uniformly displacement drag-line modulus expansion joint |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013744A (en) * | 2017-05-09 | 2017-08-04 | 安徽省化工设计院 | A kind of carriage handled for pipe support expansion joint |
| CN107165044A (en) * | 2017-06-12 | 2017-09-15 | 四川双建路桥机械有限责任公司 | A kind of big displacement Telescopic device of pedestrian way |
| CN107558361A (en) * | 2017-03-06 | 2018-01-09 | 四川新路桥机械有限公司 | A kind of retractor device |
| CN108660919A (en) * | 2018-07-05 | 2018-10-16 | 衡水中铁建工程橡胶有限责任公司 | A kind of heavy type twin beams modulus bridge expansion device |
| WO2019020064A1 (en) * | 2017-07-27 | 2019-01-31 | 单国珠 | Overall reinforcement modular-type multi-directional shift telescopic device and method |
| CN110552287A (en) * | 2019-10-09 | 2019-12-10 | 株洲时代新材料科技股份有限公司 | Flexible telescopic mechanism for bridge and bridge telescopic device |
| CN111119039A (en) * | 2019-12-31 | 2020-05-08 | 山西省交通新技术发展有限公司 | Displacement device for plate type expansion joint of highway bridge |
| CN114319095A (en) * | 2022-01-20 | 2022-04-12 | 河北宝力工程装备股份有限公司 | Noise-reduction multi-dimensional linkage control system and application thereof in analog-digital expansion device |
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2016
- 2016-06-13 CN CN201620574642.7U patent/CN205839580U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107558361A (en) * | 2017-03-06 | 2018-01-09 | 四川新路桥机械有限公司 | A kind of retractor device |
| CN107013744A (en) * | 2017-05-09 | 2017-08-04 | 安徽省化工设计院 | A kind of carriage handled for pipe support expansion joint |
| CN107165044A (en) * | 2017-06-12 | 2017-09-15 | 四川双建路桥机械有限责任公司 | A kind of big displacement Telescopic device of pedestrian way |
| CN107165044B (en) * | 2017-06-12 | 2023-05-05 | 四川双建路桥机械有限责任公司 | Large-displacement sidewalk telescopic device |
| WO2019020064A1 (en) * | 2017-07-27 | 2019-01-31 | 单国珠 | Overall reinforcement modular-type multi-directional shift telescopic device and method |
| CN108660919A (en) * | 2018-07-05 | 2018-10-16 | 衡水中铁建工程橡胶有限责任公司 | A kind of heavy type twin beams modulus bridge expansion device |
| CN108660919B (en) * | 2018-07-05 | 2023-08-25 | 中裕铁信交通科技股份有限公司 | Heavy double-beam modular bridge expansion device |
| CN110552287A (en) * | 2019-10-09 | 2019-12-10 | 株洲时代新材料科技股份有限公司 | Flexible telescopic mechanism for bridge and bridge telescopic device |
| CN110552287B (en) * | 2019-10-09 | 2021-05-14 | 株洲时代新材料科技股份有限公司 | Flexible telescopic mechanism for bridge and bridge telescopic device |
| CN111119039A (en) * | 2019-12-31 | 2020-05-08 | 山西省交通新技术发展有限公司 | Displacement device for plate type expansion joint of highway bridge |
| CN111119039B (en) * | 2019-12-31 | 2021-11-23 | 山西省交通新技术发展有限公司 | Displacement device for plate type expansion joint of highway bridge |
| CN114319095A (en) * | 2022-01-20 | 2022-04-12 | 河北宝力工程装备股份有限公司 | Noise-reduction multi-dimensional linkage control system and application thereof in analog-digital expansion device |
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