CN106120549A - A kind of big displacement quantity equal distance deflection bridge extension joint - Google Patents
A kind of big displacement quantity equal distance deflection bridge extension joint Download PDFInfo
- Publication number
- CN106120549A CN106120549A CN201610580187.6A CN201610580187A CN106120549A CN 106120549 A CN106120549 A CN 106120549A CN 201610580187 A CN201610580187 A CN 201610580187A CN 106120549 A CN106120549 A CN 106120549A
- Authority
- CN
- China
- Prior art keywords
- equal distance
- bearing
- side bar
- suspension bracket
- distance deflection
- 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.)
- Granted
Links
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 36
- 239000000725 suspension Substances 0.000 claims abstract description 33
- 239000003351 stiffener Substances 0.000 claims abstract description 24
- 229920001971 elastomer Polymers 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000004873 anchoring Methods 0.000 abstract description 4
- 238000007667 floating Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- E01D19/062—Joints having intermediate beams
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of big displacement quantity equal distance deflection bridge extension joint, including rotation system, equal distance deflection system and supporting bearing system, described supporting bearing system includes M bearing unit, M described bearing unit includes 2 side bars and 2 central sills of M, all bearing units are evenly distributed on bearing cross beam, described side bar is connected fixing by side bar anchoring strength plate with flexible beam body anchor system, and the side of described side bar is provided with side bar stiffener, and the bottom surface connection of side bar has telescopic end displacement case.The present invention is simple to operate, equal distance deflection device can make case bay in retractor device equidistantly change, ensure that the safety of vehicle pass-through, telescopic end bearing cross beam end has limiting plate, can prevent retractor device from stretching gap more than design load, prevent crossbeam pull-out displacement case from causing retractor device to destroy, be particularly well-suited on the floating bridge such as suspension bridge or cable-stayed bridge.
Description
Technical field
The present invention relates to bridge extension joint technical field, particularly relate to the flexible dress of a kind of big displacement quantity equal distance deflection bridge
Put.
Background technology
At present, existing big displacement quantity bridge modulus type section steel expansion device typically has two kinds of forms, and one is single supporting
Beam type, another kind is the grid type of multi-support crossbeam.Its displacement-control mode, has the oblique bearing cross beam control of German Mao Leshi
Mode processed, shear spring control mode.Domestic have under link type control mode, side bar and central sill spring box is set and spring props up
Frame, uses the caoutchouc elasticity equidistant mode of detrusion command displacement, also has and arranges shear spring in beam supporting bracket both sides
Mode.Its different control mode is respectively arranged with pluses and minuses.A), there is its sliding surface in the retractor device of oblique bearing cross beam command displacement
Abrasion is relatively big, and rubber bearing load is the biggest, and in the case of not having long-acting Lubrication Design, abrasion is more serious, and bolt is even
The connection member easily loose or dislocation by the vibration of bridge floor vehicular impact retractor device, loses equal distance deflection function.B), shear spring is used
The retractor device of command displacement, can produce the biggest moment of torsion to central sill, the highest to the structural strength of central sill beam, and can cause becoming
Position is uneven.C), domestic have spring box and spring support are set under side bar and central sill, use steel and rubber composite (bullet
Property shearing force buffer element) detrusion control telescopic displacement, this kind of mode is to be connected by three beams in adjacent two gaps,
Also the moment of torsion effect to central sill can be produced, and with bolts, long car load impact shock, can cause connecting
Bolt looseness, elastic shear force buffer element comes off, as steel and the rubber composite poor performance opposite sex, causes position, local
Shifting control mode lost efficacy, and therefore easily caused the wide uneven phenomenon of retractor device seam.D), at retractor device Support bracket two
The form of shear spring is arranged in side, is that displacement system and supporting system are placed on an overall structure, it is impossible to enough adapt to bridge
Three-D displacement changes, and therefore locks the steel construction suspension bridge such as firm bridge, the firm bridge of suspension cable unsuitable for oblique pull.E), existing big displacement quantity
Retractor device is used on the steel construction suspension bridges such as suspension bridge, and two ends all arrange Large Displacement Expansion Joints, when occurring because of one end
When fault cannot be stretched, the dilatation amount of whole bridge all concentrates on one end, easily causes amount of contraction and sets more than this end retractor device
Metering, causes bearing cross beam pull out, endangers bridge and passes through safety.
Summary of the invention
The technical problem existed based on background technology, the present invention proposes the flexible dress of a kind of big displacement quantity equal distance deflection bridge
Put.
A kind of big displacement quantity equal distance deflection bridge extension joint that the present invention proposes, including rotation system, equal distance deflection system
System and supporting bearing system, described supporting bearing system includes M bearing unit, M described bearing unit include 2 side bars with
M-2 central sill, all bearing units are evenly distributed on bearing cross beam, and described side bar is by side bar anchoring strength plate and flexible beam body
Anchor system connects fixing, and the side of described side bar is provided with side bar stiffener, and the bottom surface connection of side bar has telescopic end displacement case,
Described central sill is by pressing plate, two connections suspension bracket, two suspension bracket stiffeners, bearing, compressing support, pressure strip, compression spiral shells
Female, check plate nut compresses with bearing cross beam, and the downside of described bearing cross beam is provided with pressed seat away from one end of compressing support, institute
Stating and connect pressing plate with holes below central sill, described pressing plate both sides are welded to connect suspension bracket, and described connection suspension bracket is added by suspension bracket stiffener
Gu, one end of described suspension bracket stiffener is provided with chain equal distance deflection device, by rotation-limited axle spiral shell between described connection suspension bracket
Being provided with fixing end movement case between female connection, and connection suspension bracket, the side of described fixing end movement case is provided with fixing end movement case
Side stiffener, the bottom surface of described fixing end movement case is provided with fixing end movement bottom face stiffener, and described bearing compresses
At bearing cross beam stainless steel surfaces, described bearing cross beam lower surface is installed compressing support, described pressure strip is provided with check plate,
Described equal distance deflection system is made up of four drive chain cases, two chains, and every described chain has M locating shaft, 4 diplopore chains
Plate, two connecting rod locating pieces, the individual three pore chain plates of 2* (M-2), 6M+4 pad compositions, the side of described pad is provided with split pin,
Being connected by slotted nut between described three pore chain plates, described three pore chain plates are connected by universal driving shaft between diplopore carrier bar, institute
State connecting rod locating piece and include fixing end link locating piece and telescopic end connecting rod locating piece, described fixing end link locating piece, stretch
Contracting end link locating piece is all connected with drive chain case back plate, and middle M-2 described locating shaft is connected in the middle part of middle soffit, described fixed
Position axle includes central sill locating shaft and side bar locating shaft, is connected by central sill locating shaft, two described limits between two described central sills
Connected by side bar locating shaft between beam.
Preferably, described M value is 6-16.
Preferably, it is fixing that described connection suspension bracket uses welding manner to be connected with central sill, and pressure strip uses nut to compress.
Preferably, the telescopic end of described bearing cross beam is provided with limiting plate.
Preferably, it is respectively provided with rubber weather strip between described side bar and central sill and between two central sills.
In the present invention, owing to Large Displacement Expansion Joints is used the flexible of supporting system and a plurality of equidistant slip by the present invention
Beam, is divided into 80mm telescopic unit by telescopic displacement amount, and fixing end uses rotary shaft and the water with multidirectional angle turning function simultaneously
Flat turn moving part, telescopic end crossbeam uses rubber elastomer supporting, when vehicle pass-through, it is possible to decrease the vehicle-mounted impact to retractor device
Property.Equal distance deflection device can make case bay in retractor device equidistantly change, it is ensured that the safety of vehicle pass-through.Telescopic end props up
Hold beam-end and there is limiting plate, retractor device gap of stretching can be prevented more than design load, prevent crossbeam pull-out displacement case from causing
Retractor device destroys, and is particularly well-suited on the floating bridge such as suspension bridge or cable-stayed bridge, when steel box girder bridge other end expansion joint occurs
Fault and he when cannot stretches, bridge contraction distortion amount all concentrates on other end retractor device, if not using stopping means,
More than expansion joint design load, crossbeam may be pulled out because of bridge stroke, endanger bridge pavement traffic safety.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of big displacement quantity equal distance deflection bridge extension joint that the present invention proposes；
Fig. 2 is the sectional view in A-A direction in Fig. 1 of the present invention；
Fig. 3 is the sectional view in B-B direction in Fig. 2 of the present invention；
Fig. 4 is the sectional view in C-C direction in Fig. 2 of the present invention；
Fig. 5 is the sectional view in D-D direction in Fig. 2 of the present invention；
Fig. 6 is the chain equal distance deflection device master of a kind of big displacement quantity equal distance deflection bridge extension joint that the present invention proposes
View；
Fig. 7 is the sectional view in E-E direction in Fig. 6 of the present invention.
In figure: 1 fix end movement case, 2 side bar stiffeners, 3 fix end movement case side stiffener, 4 fix end movement case
Bottom surface stiffener, 5 central sills, 6 chain equal distance deflection devices, 7 rubber weather strips, 8 side bars anchoring strength plates, 9 telescopic end displacement casees, 10
Pressure strip, 11 side bars, 12 suspension bracket stiffeners, 13 pressing plates, 14 compressing supports, 15 rotation-limited axles, 16 displacement devices, 17 supporting horizontal strokes
Beam, 18 pressed seats, 19 clamp nuts, 20 check plate nuts, 21 check plates, 22 drive chain cases, 23 rotation-limited axle nuts, 24 hang
Frame, 25 limiting plates, 26 fix end link locating piece, 27 diplopore carrier bars, 28 3 pore chain plates, 29 central sill locating shafts, 30 telescopic ends even
Bar locating piece, 31 slotted nuts, 32 universal driving shafts, 33 side bar locating shafts, 34 pads, 35 split pins.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is explained orally further.
Embodiment one
A kind of big displacement quantity equal distance deflection bridge extension joint that the present invention proposes, including rotation system, equal distance deflection system
System and supporting bearing system, supporting bearing system includes that M bearing unit, M bearing unit include 2 side bars 11 and M-2
Central sill 5, all bearing units are evenly distributed on bearing cross beam 17, and side bar 11 is by side bar anchoring strength plate 8 and flexible beam body anchor
Gu system connects fixing, the side of side bar 11 is provided with side bar stiffener 2, and the bottom surface connection of side bar 11 has telescopic end displacement case 9,
Central sill 5 by pressing plate 13, two connect 24, two suspension bracket stiffeners 12 of suspension bracket, bearing, compressing support 14, pressure strip 10,
Clamp nut 19, check plate nut 20 compress with bearing cross beam 17, and the downside of bearing cross beam 17 is away from one end of compressing support 14
Being provided with pressed seat 18, connect pressing plate with holes below central sill 5, pressing plate 13 both sides are welded to connect suspension bracket 24, connect suspension bracket 24 by hanging
Frame stiffener 12 is reinforced, and one end of suspension bracket stiffener 12 is provided with chain equal distance deflection device 6, connects between suspension bracket 24 by spacing
Rotary shaft nut 23 connects, and is provided with fixing end movement case 1 between connection suspension bracket 24, and the side of fixing end movement case 1 is provided with solid
Fixed end displacement case side stiffener 3, the bottom surface of fixing end movement case 1 is provided with fixing end movement bottom face stiffener 4, bearing
Being pressed on bearing cross beam 17 stainless steel surfaces, bearing cross beam 17 lower surface installs compressing support 14, the telescopic end of bearing cross beam 17
It is provided with limiting plate 25, prevents expansion joint stroke from crossing senior general's bearing cross beam 17 and pull out, pressure strip 10 is provided with check plate 21,
It is fixing that connection suspension bracket 24 uses welding manner to be connected with central sill 5, and pressure strip 10 uses nut to compress so that whole attachment structure
More stable, equal distance deflection system is made up of 22, two chains of four drive chain cases, and every chain has M locating shaft, 4 diplopores
27, two connecting rod locating pieces of carrier bar, 2*M-2 three pore chain plates 28,6M+4 pad 34 form, and the side of pad 34 is provided with opening
Pin 35, is connected by slotted nut 31 between three pore chain plates 28, by universal driving shaft 32 between three pore chain plates 28 and diplopore carrier bar 27
Connecting, connecting rod locating piece includes fixing end link locating piece 26 and telescopic end connecting rod locating piece 30, fixing end link locating piece
26, telescopic end connecting rod locating piece 30 is all connected with drive chain case 22 back plate, and middle M-2 locating shaft is connected in the middle part of central sill 5 bottom surface,
Locating shaft includes central sill locating shaft 29 and side bar locating shaft 33, is connected by central sill locating shaft 29, two limits between two central sills 5
Being connected by side bar locating shaft between beam 11, M value is 6-16, is respectively provided with rubber between side bar 11 and central sill 5 and between two central sills 5
Glue sealing strip, increases the connection seal degree between beam column.
In the present invention, stiffener can strengthen the intensity of fixing end movement case 1, it is ensured that in the case of bottom is unsettled, also can
Long-term normal use.It is not drawn out fixing end movement case 1 to fix end bearing crossbeam 17, offers pin in bearing cross beam 17 end
Axis hole, offers long slot bore simultaneously in displacement case two sides, uses stud to connect, and between stud and displacement case hole
Both sides are finally connected fixing with nut, it is ensured that bearing cross beam 17 has horizontal and vertical in supporting case by assembling rubber ring
Rotating function, meet the deflection function of bridge extension joint.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, according to technical scheme and
Inventive concept equivalent or change in addition, all should contain within protection scope of the present invention.
Claims (5)
1. a big displacement quantity equal distance deflection bridge extension joint, including rotation system, equal distance deflection system and supporting carrying be
System, it is characterised in that described supporting bearing system includes M bearing unit, M described bearing unit includes 2 side bars (11)
With M-2 central sill (5), all bearing units are evenly distributed on bearing cross beam (17), and described side bar (11) is anchored by side bar
Strength plate (8) is connected fixing with flexible beam body anchor system, and the side of described side bar (11) is provided with side bar stiffener (2), and side bar
(11) bottom surface connects telescopic end displacement case (9), described central sill (5) by pressing plate (13), two connect suspension bracket (24), two
Suspension bracket stiffener (12), bearing, compressing support (14), pressure strip (10), clamp nut (19), check plate nut (20) with
Bearing cross beam (17) compresses, and the downside of described bearing cross beam (17) is provided with pressed seat (18) away from one end of compressing support (14),
Described central sill (5) lower section connects pressing plate with holes, and described pressing plate (13) both sides are welded to connect suspension bracket (24), described connection suspension bracket (24)
Being reinforced by suspension bracket stiffener (12), one end of described suspension bracket stiffener (12) is provided with chain equal distance deflection device (6), described company
Connect and connected by rotation-limited axle nut (23) between suspension bracket (24), and be provided with fixing end movement case between connection suspension bracket (24)
(1), the side of described fixing end movement case (1) is provided with fixing end movement case side stiffener (3), described fixing end movement case
(1) bottom surface is provided with fixing end movement bottom face stiffener (4), and described bearing is pressed on bearing cross beam (17) stainless steel watch
Face, described bearing cross beam (17) lower surface is installed compressing support (14), described pressure strip (10) is provided with check plate (21), institute
Stating equal distance deflection system to be made up of four drive chain cases (22), two chains, every described chain has M locating shaft, 4 diplopore chains
Plate (27), two connecting rod locating pieces, 2*(M-2) individual three pore chain plates (28), 6M+4 pad (34) composition, described pad (34)
Side is provided with split pin (35), is connected by slotted nut (31), described three pore chain plates (28) between described three pore chain plates (28)
Being connected by universal driving shaft (32) with between diplopore carrier bar (27), described connecting rod locating piece includes fixing end link locating piece (26)
With telescopic end connecting rod locating piece (30), described fixing end link locating piece (26), telescopic end connecting rod locating piece (30) are all and chain
Case (22) back plate connects, and middle M-2 described locating shaft is connected in the middle part of central sill (5) bottom surface, and described locating shaft includes that central sill is fixed
Position axle (29) and side bar locating shaft (33), connected by central sill locating shaft (29) between two described central sills (5), two described limits
Beam is connected by side bar locating shaft between (11).
A kind of big displacement quantity equal distance deflection bridge extension joint the most according to claim 1, it is characterised in that described M value
For 6-16.
A kind of big displacement quantity equal distance deflection bridge extension joint the most according to claim 1, it is characterised in that described connection
It is fixing that suspension bracket (24) uses welding manner to be connected with central sill (5), and pressure strip (10) uses nut to compress.
A kind of big displacement quantity equal distance deflection bridge extension joint the most according to claim 1, it is characterised in that described supporting
The telescopic end of crossbeam (17) is provided with limiting plate (25).
A kind of big displacement quantity equal distance deflection bridge extension joint the most according to claim 1, it is characterised in that described side bar
(11) and it is respectively provided with rubber weather strip (7) between central sill (5) and between two central sills (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610580187.6A CN106120549B (en) | 2016-07-22 | 2016-07-22 | A kind of big displacement quantity equal distance deflection bridge extension joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610580187.6A CN106120549B (en) | 2016-07-22 | 2016-07-22 | A kind of big displacement quantity equal distance deflection bridge extension joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106120549A true CN106120549A (en) | 2016-11-16 |
| CN106120549B CN106120549B (en) | 2018-01-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610580187.6A Active CN106120549B (en) | 2016-07-22 | 2016-07-22 | A kind of big displacement quantity equal distance deflection bridge extension joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106120549B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107217590A (en) * | 2017-06-14 | 2017-09-29 | 武汉海润工程设备有限公司 | A kind of bridge extension joint with volute spring displacement control system |
| CN107558361A (en) * | 2017-03-06 | 2018-01-09 | 四川新路桥机械有限公司 | A kind of retractor device |
| CN109778687A (en) * | 2017-11-14 | 2019-05-21 | 长沙理工大学 | Replaceable modular expansion device and its preparation process are combined in a kind of assembly |
| CN110241718A (en) * | 2019-07-23 | 2019-09-17 | 四川路安路桥科技有限公司 | A kind of modularization modular 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 |
| 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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| CN203834347U (en) * | 2014-04-17 | 2014-09-17 | 同济大学 | Anti-seismic limit bridge cable modular type expansion joint device |
| CN205975349U (en) * | 2016-07-22 | 2017-02-22 | 安徽尚德科技有限公司 | Big displacement volume equidistance bridge telescoping device that shifts |
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2016
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Cited By (8)
| 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 |
| CN107217590A (en) * | 2017-06-14 | 2017-09-29 | 武汉海润工程设备有限公司 | A kind of bridge extension joint with volute spring displacement control system |
| CN109778687A (en) * | 2017-11-14 | 2019-05-21 | 长沙理工大学 | Replaceable modular expansion device and its preparation process are combined in a kind of assembly |
| CN110241718A (en) * | 2019-07-23 | 2019-09-17 | 四川路安路桥科技有限公司 | A kind of modularization modular expansion device |
| CN110241718B (en) * | 2019-07-23 | 2021-10-26 | 四川路安路桥科技有限公司 | Modular modulus type telescopic 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 |
| 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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| Publication number | Publication date |
|---|---|
| CN106120549B (en) | 2018-01-12 |
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Address after: 238000 6 Heping Road, Chaohu Economic Development Zone, Hefei, Anhui. Patentee after: Shangde Technology (Anhui) Co.,Ltd. Country or region after: China Patentee after: SHANGDE CONSTRUCTION GROUP CO.,LTD. Address before: 238000, No. 6 Heping Avenue, Chaohu Economic Development Zone, Hefei City, Anhui Province Patentee before: ANHUI SHOULDER TECHNOLOGY Co.,Ltd. Country or region before: China Patentee before: SHANGDE CONSTRUCTION GROUP CO.,LTD. |
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