CN109750597A - Bridge cantilever water proof and dust proof telescopic device and its construction method - Google Patents
Bridge cantilever water proof and dust proof telescopic device and its construction method Download PDFInfo
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- CN109750597A CN109750597A CN201711086504.XA CN201711086504A CN109750597A CN 109750597 A CN109750597 A CN 109750597A CN 201711086504 A CN201711086504 A CN 201711086504A CN 109750597 A CN109750597 A CN 109750597A
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- 239000000428 dust Substances 0.000 title claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 238000010276 construction Methods 0.000 title claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 54
- 229920001971 elastomer Polymers 0.000 claims abstract description 39
- 239000007787 solid Substances 0.000 claims abstract description 38
- 239000000806 elastomer Substances 0.000 claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 230000010412 perfusion Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000002390 adhesive tape Substances 0.000 claims description 5
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 3
- 239000004587 polysulfide sealant Substances 0.000 claims description 2
- 238000007665 sagging Methods 0.000 claims description 2
- 239000004590 silicone sealant Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 1
- 239000004575 stone Substances 0.000 abstract description 4
- 239000013013 elastic material Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 244000126211 Hericium coralloides Species 0.000 description 1
- 241001080929 Zeugopterus punctatus Species 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The present invention provides a kind of bridge cantilever water proof and dust proof telescopic device and its construction method, wherein device includes: two movable fishbacks (1), is arranged in the bridge beam body (B) of expansion joint two sides；Two supporting members (2) positioned at expansion joint two sides are arranged on bridge beam body (B), are used for support movable fishback (1)；Band (3) is arranged in the bridge beam body (B) of two supporting members (2) or two sides, for sealing expansion joint；By the concretionary solid elastomer of the liquid being perfused (4), it is filled in the cavity of movable fishback (1), supporting member (2) or/and bridge beam body (B) and band (3) formation, solid elastomer (4) is Nian Jie with movable fishback (1), supporting member (2) or/and bridge beam body (B) and band (3) integral.The sundries such as dust, stone can be prevented to accumulate in the space between waterstop and cantilever fishback, extend the service life of telescopic device.
Description
Technical field
The present invention relates to bridge extension joint technical field more particularly to Expansion Units for Highway Bridges sealed protective structure,
It is specifically exactly a kind of bridge cantilever water proof and dust proof telescopic device and its construction method.
Background technique
Telescopic device is the important composition component of bridge, is to make vehicle smoothly pass bridge floor and meet bridge top knot
The needs of structure deformation, the general name for the various devices being made of components such as rubber and steel being arranged at bridge expanssion joint.It is flexible
Seam is to adapt to the gap that material swell-shrinking deformation needs and is arranged in bridge superstructure.Telescopic device is according to extrusome structure
Difference be roughly divided into four classes: the board-like telescopic device of modular expansion device, comb teeth, rubber type telescopic device and deformed steel list seam
Formula telescopic device.
The existing board-like telescopic device of comb teeth is to meet bridge beam slab to expand with heat and contract with cold and the suitable bridge that generates is to flexible displacement, by handing over
A pair of of comb teeth composition of fork arrangement, due to use outdoor on road surface, after comb teeth pulls open, inside waterstop can accumulated water, dust,
The sundries such as stone, after the board-like telescopic device of comb teeth is used for a long time, the sundries accumulated inside waterstop can be more and more, will lead to comb
Tooth plate can not normally stretch, and so as to cause fishback deformation, seriously affect behaviour in service and the longevity of the board-like telescopic device of comb teeth
Life.Also very big difficulty is brought to the maintenance of the board-like telescopic device of comb teeth.The usual this board-like telescopic device of comb teeth is in bridge
After coming into operation, influenced by accumulation sundries inside band, fishback can deform, and 1 year or so the board-like telescopic device of comb teeth is just
Start the phenomenon that destroying, needs repairing or replace.
Therefore, those skilled in the art need to research and develop a kind of bridge cantilever water proof and dust proof telescopic device, can effectively eliminate
Inside band the problem of accumulation sundries.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is that provide a kind of bridge cantilever water proof and dust proof telescopic device and
Its construction method solves easy accumulated impurity in existing telescopic device waterstop (band) and causes asking for fishback deformation
Topic.
In order to solve the above-mentioned technical problem, it is flexible to provide a kind of bridge cantilever water proof and dust proof for a specific embodiment of the invention
Device, comprising: two movable fishbacks are arranged in the bridge beam body of expansion joint two sides；Positioned at the two of the expansion joint two sides
A supporting member is arranged in the bridge beam body, for supporting the movable fishback；Band, setting is described in two
In the bridge beam body of supporting member or two sides, for sealing expansion joint；By the concretionary solid elastic of the liquid being perfused
Body is filled in the cavity of the movable fishback, the supporting member or/and the bridge beam body and band formation
Interior, the solid elastomer and the movable fishback, the supporting member or/and the bridge beam body and the band are glued
It is connected into one.
A specific embodiment of the invention also provides a kind of construction method of bridge cantilever water proof and dust proof telescopic device, packet
It includes: liquid is perfused in the cavity formed to movable fishback, supporting member or/and bridge beam body and band, and makes liquid
Liquid level is lower than the upper plane of movable fishback；After liquid curing is solid elastomer, construction is completed.
Above-mentioned specific embodiment according to the present invention is it is found that bridge cantilever water proof and dust proof telescopic device and its construction method
It at least has the advantages that by the way that liquid is perfused below cantilever fishback, is elastic material (solid-state bullet after liquid curing
Property body), elastic material and waterstop (band), cantilever fishback, supporting member or/and two sides bridge beam body etc. become one
Body, elastic material deform with the deformation of bridge superstructure, have filled up the space between waterstop and cantilever fishback, disappeared
Except the cavity that comes to nothing, the sundries such as dust, stone are prevented to accumulate in the space between waterstop and cantilever fishback, fishback will not
Deformation, and the noise that while eliminating vehicle rolloff cantilever fishback generates, to improve driving comfort level and safety and bridge is stretched
The service life of compression apparatus, and save necessary maintenance after telescopic device installation；In addition, the surface of elastic material is slightly below cantilever
The surface of fishback, so that when cantilever fishback squeezes elastic material, elastic material will not be from when vehicle passes through telescopic device
The comb teeth of cantilever fishback it is projecting inward come, improve travel safety, meanwhile, elastic material will not excessive compression waterstop it is (close
Seal band), it is beautiful and generous, nor waterstop (band) can be damaged.
It is to be understood that above-mentioned general description and following specific embodiments are merely illustrative and illustrative, not
The range of the invention to be advocated can be limited.
Detailed description of the invention
Following appended attached drawing is part of specification of the invention, depicts example embodiments of the present invention, institute
Attached drawing is used to illustrate the principle of the present invention together with the description of specification.
Fig. 1 is a kind of embodiment one for bridge cantilever water proof and dust proof telescopic device that the specific embodiment of the invention provides
Structural schematic diagram.
Fig. 2 is a kind of embodiment two for bridge cantilever water proof and dust proof telescopic device that the specific embodiment of the invention provides
Structural schematic diagram.
Fig. 3 is a kind of embodiment three for bridge cantilever water proof and dust proof telescopic device that the specific embodiment of the invention provides
Structural schematic diagram.
Fig. 4 is a kind of example IV for bridge cantilever water proof and dust proof telescopic device that the specific embodiment of the invention provides
Structural schematic diagram.
Fig. 5 is a kind of top view one for bridge cantilever water proof and dust proof telescopic device that the specific embodiment of the invention provides.
Fig. 6 is a kind of top view two for bridge cantilever water proof and dust proof telescopic device that the specific embodiment of the invention provides.
Fig. 7 is a kind of construction method for bridge cantilever water proof and dust proof telescopic device that the specific embodiment of the invention provides
The flow chart of embodiment one.
Fig. 8 is a kind of construction method for bridge cantilever water proof and dust proof telescopic device that the specific embodiment of the invention provides
The flow chart of embodiment two.
Fig. 9 is a kind of construction method for bridge cantilever water proof and dust proof telescopic device that the specific embodiment of the invention provides
The flow chart of embodiment three.
Figure 10 is a kind of construction method for bridge cantilever water proof and dust proof telescopic device that the specific embodiment of the invention provides
Example IV flow chart.
Description of symbols:
12 supporting member of movable fishback
3 band, 4 solid elastomer
5 stiffened panel B bridge beam bodies
11 comb teeth, 21 first protrusion
51 protrusion C grooves
Specific embodiment
Understand in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will with attached drawing and in detail
Narration clearly illustrates the spirit of disclosed content, and any skilled artisan is understanding the content of present invention
After embodiment, when the technology that can be taught by the content of present invention, it is changed and modifies, without departing from the essence of the content of present invention
Mind and range.
The illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but not as a limitation of the invention.
In addition, in the drawings and embodiments the use of element/component of same or like label is for representing same or like portion
Point.
About " first " used herein, " second " ... etc., not especially censure the meaning of order or cis-position,
It is non-to limit the present invention, only for distinguish with same technique term description element or operation.
About direction term used herein, such as: upper and lower, left and right, front or rear etc. are only the sides with reference to attached drawing
To.Therefore, the direction term used is intended to be illustrative and not intended to limit this creation.
It is open term, i.e., about "comprising" used herein, " comprising ", " having ", " containing " etc.
Mean including but not limited to.
About it is used herein " and/or ", including any of the things or all combination.
It include " two " and " two or more " about " multiple " herein；It include " two groups " about " multiple groups " herein
And " more than two ".
About term used herein " substantially ", " about " etc., to modify it is any can be with the quantity or mistake of microvariations
Difference, but this slight variations or error can't change its essence.In general, microvariations that such term is modified or error
Range in some embodiments can be 20%, in some embodiments can be 10%, can be in some embodiments 5% or its
His numerical value.It will be understood by those skilled in the art that the aforementioned numerical value referred to can be adjusted according to actual demand, it is not limited thereto.
It is certain to describe the word of the application by lower or discuss in the other places of this specification, to provide art technology
Personnel's guidance additional in relation to the description of the present application.
Fig. 1 is a kind of embodiment one for bridge cantilever water proof and dust proof telescopic device that the specific embodiment of the invention provides
Structural schematic diagram, as shown in Figure 1, movable fishback is arranged in the bridge beam body of expansion joint two sides, supporting member support movable
Fishback, band seal expansion joint, prevent rainwater to be sewn on abutment by flexible, solid elastomer is filled in movable comb teeth
In the cavity that plate, supporting member or/and two sides bridge beam body and band are formed, thus prevent sundries enter movable fishback,
In the cavity that supporting member or/and bridge beam body and band are formed, damage activity fishback.
In the specific embodiment shown in the drawings, bridge cantilever water proof and dust proof telescopic device includes: two movable comb teeth
1, two supporting member 2 of plate, band 3 and solid elastomer 4.Wherein, expansion joint two sides are arranged in two movable fishbacks 1
On bridge beam body B；Two supporting members 2 are located at the expansion joint two sides, and supporting member 2 is arranged on bridge beam body B, bearing member
Movable fishback 1 is fixed on supporting member 2 by part 2 for supporting the movable fishback 1, by anchoring piece；Band 3 is set
It sets on the bridge beam body B of two supporting members 2 or two sides, band 3 is for sealing expansion joint, and band 3 is also
Claim waterstop；Solid elastomer 4 is by being poured by the movable fishback 1, the supporting member 2 or/and the bridge beam body B
The liquid of the cavity formed with the band 3 solidifies, and solid elastomer 4 is filled in the movable fishback 1, the branch
It holds in the cavity that element 2 or/and the bridge beam body B and the band 3 are formed, the solid elastomer 4 and the activity
Fishback 1, the supporting member 2 or/and the bridge beam body B and the band 3 are bonded integrally.Band 3 can be set
It sets on two-side supporting element 2, can also be arranged on the bridge beam body B of two sides；If band 3 is arranged in two-side supporting element
On 2, solid elastomer 4 is filled in the movable fishback 1, the supporting member 2 and the cavity of the formation of the band 3；
If band 3 be arranged on the bridge beam body B of two sides, solid elastomer 4 be filled in movable fishback 1, the supporting member 2,
In the cavity that the bridge beam body B and the band 3 are formed；If band 3 is arranged on the bridge beam body B of two sides, and
Supporting member 2 is embedded in bridge beam body B, and solid elastomer 4 is filled in movable fishback 1, the bridge beam body B and described close
It seals in the cavity that band 3 is formed.In specific embodiments of the present invention, the upper plane of solid elastomer 4 is lower than the movable fishback 1
Upper plane；The upper plane of solid elastomer 4 is 0.5cm~2cm lower than the upper plane of the movable fishback 1, solid elastomer 4
Upper surface be slightly below the upper surface of movable fishback 1, under vehicle rolloff telescopic device or hot weather, bridge beam body B is swollen
When swollen, solid elastomer 4 will not be higher by movable fishback 1 because of being squeezed, to guarantee that traffic safety and driving are steady；Branch
Holding element 2 can be vertical plate steel body or the deformed steel integrally rolled etc.；Solid elastomer 4 can be close for polyurethane rubber, polysulfide
Sealing, modified pitch or silicone sealant etc. can play the functions such as sealing effect and pressure-bearing, flexible and anti-torsion.
It can be fixed by groove C between the band 3 and the supporting member 2 or be fixed by holdfast.Band 3 can also be consolidated
It is scheduled on the bridge beam body B of two sides.The activity fishback 1 can be integrally formed with the supporting member 2 or the movable comb
It can be welded and fixed between tooth plate 1 and the supporting member 2.
Referring to Fig. 1, it is dirty that it is easy hiding in the prior art, in the cavity that movable fishback 1, supporting member 2 and band 3 are formed
Dirt of receiving may finally cause movable fishback 1 to deform, and burst band 3, shorten telescopic device if cleared up not in time
Service life；And the dirt in cavity is difficult to clean up, and it is very inconvenient to safeguard.To movable fishback 1, supporting member 2 or/and institute
It states and liquid is perfused in the cavity that bridge beam body B and band 3 are formed, after liquid is frozen into solid elastomer 4, there is elasticity, no
But it can prevent dirt from entering in cavity, and can also prevent the fluids such as sleet from flowing on abutment by expansion joint, and not shadow
Ring normal driving.Have many advantages, such as simple structure, definite functions, construction is simple, efficient and convenient, saving of labor, time saving, province's maintenance, also
Steady, water proof and dust proof the outstanding feature with driving.
Fig. 2 is a kind of embodiment two for bridge cantilever water proof and dust proof telescopic device that the specific embodiment of the invention provides
Structural schematic diagram, Fig. 3 are a kind of embodiment for bridge cantilever water proof and dust proof telescopic device that the specific embodiment of the invention provides
Three structural schematic diagram, as shown in Figure 2 and Figure 3, stiffened panel support the comb teeth of movable fishback, to prevent comb teeth in vehicle
Rolloff under deformation occurs.
In the specific embodiment shown in the drawings, bridge cantilever water proof and dust proof telescopic device further includes stiffened panel 5.Its
In, stiffened panel 5 is set to 1 downside of movable fishback, and stiffened panel 5 is used to support the comb teeth 11 of the movable fishback 1, prevents
Only the comb teeth 11 deforms under the rolloff of vehicle.In specific embodiments of the present invention, the shape of the horizontal cross-section of the comb teeth 11
Shape can be rectangle, trapezoidal, curved shape or involute-type etc.；The shape of the vertical section of the stiffened panel 5 can for triangle,
Rectangle or sector etc., the shape of the vertical section of stiffened panel 5 is triangle in Fig. 2；The shape of the vertical section of stiffened panel 5 in Fig. 3
Shape is sector.
Referring to fig. 2, Fig. 3, for the comb teeth 11 of movable fishback 1 relative to non-nose of comb, intensity is weaker, in movable fishback 1
Downside be arranged stiffened panel 5, so that deformation occurs for the comb teeth 11 of movable fishback 1, into one when preventing vehicle rolloff telescopic device
Step extends the service life of telescopic device.
Fig. 4 is a kind of example IV for bridge cantilever water proof and dust proof telescopic device that the specific embodiment of the invention provides
Structural schematic diagram, as shown in figure 4, the setting that partly overlaps between the stiffened panel 5 and the supporting member 2, the supporting member 2
Partly overlap setting between the bridge beam body B.Specifically, the top of supporting member 2 is extend into bridge beam body B, i.e.,
The top of supporting member 2 has the first protrusion 21, and bridge beam body B is corresponding to have the first groove, and the first protrusion 21 is just with first
Groove matches, and supporting member 2 can be fixed on bridge beam body B in the vertical direction using anchoring piece, 2 energy of supporting member
It is enough more strongly secured on bridge beam body B；The shape of the vertical section of stiffened panel 5 is rectangle, and the top of stiffened panel 5
Extend into supporting member 2, i.e., stiffened panel 5 have a protrusion 51, supporting member 2 have one recess, protrusion 51 just with recess
Match, stiffened panel 5 can be fixed on supporting member 2 in the vertical direction using anchoring piece, thus by bridge beam body B,
Supporting member 2, stiffened panel 5 and movable fishback 1 are fixed together.
Fig. 5 is a kind of top view one for bridge cantilever water proof and dust proof telescopic device that the specific embodiment of the invention provides；
Fig. 6 is a kind of top view two for bridge cantilever water proof and dust proof telescopic device that the specific embodiment of the invention provides, such as Fig. 5, Fig. 6
Shown, the shape of the horizontal cross-section of comb teeth 11 is rectangle in Fig. 5, and the shape of the horizontal cross-section of comb teeth 11 is trapezoidal, this hair in Fig. 6
In bright other embodiments, the shape of the horizontal cross-section of comb teeth 11 can also be other shapes, such as curved shape or involute-type,
Invention is not limited thereto.
Fig. 7 is a kind of construction method for bridge cantilever water proof and dust proof telescopic device that the specific embodiment of the invention provides
The flow chart of embodiment one, as shown in fig. 7, telescopic device is after the installation is completed, to movable fishback, supporting member or/and two sides
Liquid is perfused in the cavity that bridge beam body and band are formed, after liquid curing, that is, completes construction.
In the specific embodiment shown in the drawings, the construction method of bridge cantilever water proof and dust proof telescopic device includes:
Step 101: perfusion liquid in the cavity formed to movable fishback, supporting member or/and bridge beam body and band
Body, and make the liquid level of liquid lower than the upper plane of movable fishback.In specific embodiments of the present invention, telescopic device installation
After, movable fishback, supporting member or/and bridge beam body and band will form a cavity, to movable fishback, bearing
Liquid is perfused in the cavity that element or/and bridge beam body and band are formed, and the liquid level of liquid is made to be lower than movable comb teeth
The upper plane of plate；Band can be set on two-side supporting element, can also be arranged in the bridge beam body of two sides；If sealing
Band is arranged on two-side supporting element, and solid elastomer is filled in the movable fishback, the supporting member and the sealing
With in the cavity formed；If band is arranged in the bridge beam body of two sides, solid elastomer is filled in movable fishback, described
In the cavity that supporting member, the bridge beam body and the band are formed；If band is arranged in the bridge beam body of two sides,
And supporting member is embedded in bridge beam body, and solid elastomer is filled in movable fishback, the bridge beam body and described close
It seals in the cavity formed.For example, the liquid level of liquid is lower than upper plane 0.5cm~2cm of movable fishback, liquid solidification
After solid elastomer, the upper surface of the slightly below movable fishback in the upper surface of solid elastomer, vehicle rolloff telescopic device, or
Under person's hot weather, when bridge beam body expands, solid elastomer will not be higher by movable fishback because of being squeezed, to guarantee
Traffic safety and driving are steady.Liquid can be the polyurethane rubber being in a liquid state, polysulfide sealant, modified pitch and silicone seal
Glue etc..
Step 102: after liquid curing is solid elastomer, completing construction.In specific embodiments of the present invention, to liquid
It can satisfy pressure-bearing, flexible and anti-torsion requirement after solidification, and can prevent dirt from entering movable fishback, supporting member
Or/and in bridge beam body and the cavity of band formation.About 3~4 hours of curing time.
Referring to Fig. 7, the perfusion liquid into movable fishback, supporting member or/and bridge beam body and the cavity of band formation
Body is integrally formed after liquid solidification with movable fishback, supporting member or/and bridge beam body and band, solidifies filler
(solid elastomer) has elasticity, is not only able to prevent dirt from entering in cavity, and the fluids such as sleet can also be prevented by stretching
Contracting seam flows on abutment, and does not influence normally to drive a vehicle.Simple, definite functions, construction is simple, efficient and convenient, province with structure
The advantages that work, time saving, province safeguard, also has steady, waterproof and dustproof outstanding feature of driving a vehicle.
Fig. 8 is a kind of construction method for bridge cantilever water proof and dust proof telescopic device that the specific embodiment of the invention provides
The flow chart of embodiment two, as shown in figure 8, between two movable fishbacks of the cooperation that intersected according to environment temperature setting
Gap width.
In the specific embodiment shown in the drawings, before step 101, the construction of bridge cantilever water proof and dust proof telescopic device
Method can also include:
Step 100: being intersected according to the setting of the maximum temperature, minimum temperature and Current Temperatures of telescopic device territory of use
Gap width between the movable fishback of two of cooperation.
Wherein, at different ambient temperatures, degrees of expansion is different for bridge beam body, reserves width and the mutual cooperation at expansion joint
Gap width between movable fishback is different, thus give variation of ambient temperature reserving gaps, that is, it is living during guaranteeing warranty
Dynamic fishback will not mutual extrusion, while guaranteeing that the gap between mutual cooperation activity fishback will not influence normal driving.
Referring to Fig. 8, the influence of surrounding enviroment factor is considered, be arranged between two movable fishbacks of the cooperation that intersects
Gap width guarantees that solid elastomer will not be higher by the upper surface of movable fishback always, guarantees steady and traffic safety of driving a vehicle.
Fig. 9 is a kind of construction method for bridge cantilever water proof and dust proof telescopic device that the specific embodiment of the invention provides
The flow chart of embodiment three guarantees as shown in figure 9, stirring 2~3 hours under vacuum conditions after catalyst is added in liquid
Liquid is uniform, thus guarantee liquid curing be solid elastomer after, with movable fishback, supporting member or/and the Bridge Beam
Body and band are integrally formed.
In the specific embodiment shown in the drawings, before step 101, the construction of bridge cantilever water proof and dust proof telescopic device
Method can also include:
Step 100 ': 2~3 hours of liquid are stirred under vacuum conditions.In specific embodiments of the present invention, in vacuum shape
Liquid is stirred under state, reduces stirring resistance.
Referring to Fig. 9, under vacuum conditions, by liquid agitation it is uniform after, perfusion activity fishback, supporting member or/and institute
State in the cavity that bridge beam body and band are formed, thus allow liquid and movable fishback, supporting member or/and bridge beam body and
Band comes into full contact with, after liquid curing is solid elastomer, with movable fishback, supporting member or/and bridge beam body and close
Envelope band forms an entirety, prevents rain water or other fluid from flowing on abutment or bridge pier by expansion joint, extends the service life of bridge,
Bridge is set to keep beautiful and generous.
Figure 10 is a kind of construction method for bridge cantilever water proof and dust proof telescopic device that the specific embodiment of the invention provides
Example IV flow chart, as shown in Figure 10, in order to prevent to movable fishback, supporting member or/and bridge beam body and close
It seals with when perfusion liquid, the gap between penetration by liquid band and supporting member flows away, it may be considered that benefit in the cavity formed
The gap between band and supporting member is blocked with adhesive tape or template.
In the specific embodiment shown in the drawings, before step 101, the construction of bridge cantilever water proof and dust proof telescopic device
Method further include:
Step 100 ": the gap between the end of the band and the supporting member is blocked using adhesive tape or template.
In specific embodiments of the present invention, the gap between band and supporting member is blocked using adhesive tape or template, is prevented to activity
In the cavity that fishback, supporting member or/and bridge beam body and band are formed when perfusion liquid, penetration by liquid band and branch
The gap held between element is lost.
Referring to Figure 10, the gap between the end and supporting member of band is blocked using adhesive tape or template, prevents liquid
It is lost through the gap between band and supporting member, prevents the wasting of resources.In other embodiments of the invention, if movable
There is sundries in the cavity that fishback, supporting member or/and bridge beam body and band are formed, it is also necessary to first remove miscellaneous in cavity
Object.Under normal conditions, template-setup in the band in the following, prevent to the movable fishback, the supporting member or/and
In the cavity that the bridge beam body and the band are formed when perfusion liquid, the band is sagging.
The specific embodiment of the invention provides a kind of bridge cantilever water proof and dust proof telescopic device and its construction method, by outstanding
Liquid is perfused below arm fishback, is elastic material, elastic material (solid elastomer) and waterstop (sealing after liquid curing
Band), cantilever fishback, supporting member or/and two sides bridge beam body etc. be integrally formed, elastic material is with bridge superstructure
It deforms and deforms, filled up the space between waterstop and cantilever fishback, eliminate the cavity that comes to nothing, prevent dust, stone etc. miscellaneous
Object accumulates in the space between waterstop and cantilever fishback, and fishback will not deform, and eliminates vehicle rolloff cantilever comb teeth
The noise generated when plate to improve the service life of driving comfort level and safety and bridge extension joint, and saves flexible
Necessary maintenance after device installation；In addition, the surface of elastic material is slightly below the surface of cantilever fishback, to pass through in vehicle
When telescopic device, when cantilever fishback squeezes elastic material, elastic material will not from the comb teeth of cantilever fishback it is projecting inward come, mention
High travel safety, meanwhile, elastic material will not excessive compression waterstop (band), it is beautiful and generous, nor can damage
Ruin waterstop (band).
The foregoing is merely the schematical specific embodiments of the present invention, before not departing from conceptions and principles of the invention
It puts, the equivalent changes and modifications that any those skilled in the art is made should belong to the scope of protection of the invention.
Claims (15)
1. a kind of bridge cantilever water proof and dust proof telescopic device, which is characterized in that the device includes:
Two movable fishbacks (1), are arranged in the bridge beam body (B) of expansion joint two sides；
Two supporting members (2) positioned at the expansion joint two sides are arranged on the bridge beam body (B), described for supporting
Movable fishback (1)；
Band (3) is arranged in the bridge beam body (B) of two supporting members (2) or two sides, flexible for sealing
Seam；And
By the concretionary solid elastomer of the liquid being perfused (4), it is filled in the movable fishback (1), the supporting member
(2) or/and in the bridge beam body (B) and the cavity of the band (3) formation, the solid elastomer (4) and the work
Dynamic fishback (1), the supporting member (2) or/and the bridge beam body (B) and the band (3) bonding are integral.
2. bridge cantilever water proof and dust proof telescopic device as described in claim 1, which is characterized in that the device further include:
Stiffened panel (5) is set on the downside of the movable fishback (1), is used to support the comb teeth of the movable fishback (1)
(11), prevent the comb teeth (11) from deforming under the rolloff of vehicle.
3. bridge cantilever water proof and dust proof telescopic device as claimed in claim 2, which is characterized in that the level of the comb teeth (11)
The shape in section is rectangle, trapezoidal, curved shape or involute-type.
4. bridge cantilever water proof and dust proof telescopic device as claimed in claim 2, which is characterized in that the stiffened panel (5) is erected
The shape in straightforward face is triangle, rectangle or sector.
5. bridge cantilever water proof and dust proof telescopic device as described in claim 1, which is characterized in that the solid elastomer (4)
Upper plane lower than the movable fishback (1) upper plane.
6. bridge cantilever water proof and dust proof telescopic device as claimed in claim 5, which is characterized in that the solid elastomer (4)
Upper plane it is 0.5cm~2cm lower than the upper plane of the movable fishback (1).
7. bridge cantilever water proof and dust proof telescopic device as described in claim 1, which is characterized in that the supporting member (2) is
Vertical plate steel body or the deformed steel integrally rolled.
8. bridge cantilever water proof and dust proof telescopic device as described in claim 1, which is characterized in that the solid elastomer (4)
For polyurethane rubber, polysulfide sealant, modified pitch or silicone sealant.
9. bridge cantilever water proof and dust proof telescopic device as described in claim 1, which is characterized in that the band (3) and institute
It states fixed by groove (C) between supporting member (2) or is fixed by holdfast.
10. bridge cantilever water proof and dust proof telescopic device as described in claim 1, which is characterized in that the activity fishback (1)
It is welded and fixed between the supporting member (2) integrated molding or the movable fishback (1) and the supporting member (2).
11. a kind of construction method of bridge cantilever water proof and dust proof telescopic device, which is characterized in that this method comprises:
Liquid is perfused in the cavity formed to movable fishback, supporting member or/and bridge beam body and band, and makes liquid
Liquid level is lower than the upper plane of movable fishback；And
After liquid curing is solid elastomer, construction is completed.
12. the construction method of bridge cantilever water proof and dust proof telescopic device as claimed in claim 11, which is characterized in that activity
Before the step of liquid is perfused in the cavity that fishback, supporting member or/and bridge beam body and band are formed, this method is also wrapped
It includes:
Two institutes of the cooperation that intersects are set according to the maximum temperature, minimum temperature and Current Temperatures of telescopic device territory of use
State the gap width between movable fishback.
13. the construction method of bridge cantilever water proof and dust proof telescopic device as claimed in claim 11, which is characterized in that activity
Before the step of liquid is perfused in the cavity that fishback, supporting member or/and bridge beam body and band are formed, this method is also wrapped
It includes:
2~3 hours of liquid are stirred under vacuum conditions.
14. the construction method of bridge cantilever water proof and dust proof telescopic device as claimed in claim 11, which is characterized in that activity
Before the step of liquid is perfused in the cavity that fishback, supporting member or/and bridge beam body and band are formed, this method is also wrapped
It includes:
The gap between the end of the band and the supporting member is blocked using adhesive tape or template.
15. the construction method of bridge cantilever water proof and dust proof telescopic device as claimed in claim 14, which is characterized in that the mould
Plate is set to the band in the following, preventing to the movable fishback, the supporting member or/and the bridge beam body and institute
When stating perfusion liquid in the cavity of band formation, the band is sagging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711086504.XA CN109750597B (en) | 2017-11-07 | 2017-11-07 | Waterproof dustproof telescopic device for bridge cantilever and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711086504.XA CN109750597B (en) | 2017-11-07 | 2017-11-07 | Waterproof dustproof telescopic device for bridge cantilever and construction method thereof |
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| CN109750597B CN109750597B (en) | 2024-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711086504.XA Active CN109750597B (en) | 2017-11-07 | 2017-11-07 | Waterproof dustproof telescopic device for bridge cantilever and construction method thereof |
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| CN110593140A (en) * | 2019-09-05 | 2019-12-20 | 广西壮族自治区浦北公路管理局 | U-shaped steel bridge expansion joint maintenance construction process |
| CN113373803A (en) * | 2021-07-19 | 2021-09-10 | 王侃 | Embedded-pressing type waterproof and dustproof bridge expansion device, water stop and method |
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| CN109750597B (en) | 2024-05-10 |
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