CN207227945U - Modular expansion device and bridge with pressure-bearing connection - Google Patents
Modular expansion device and bridge with pressure-bearing connection Download PDFInfo
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- CN207227945U CN207227945U CN201620945287.XU CN201620945287U CN207227945U CN 207227945 U CN207227945 U CN 207227945U CN 201620945287 U CN201620945287 U CN 201620945287U CN 207227945 U CN207227945 U CN 207227945U
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Abstract
The utility model provides a kind of modular expansion device and bridge with pressure-bearing connection, it is related to expansion joint, a kind of modular expansion device with pressure-bearing connection is provided, including two side bars positioned at expansion joint both sides, two side bars are oppositely arranged, further include at least one central sill for being set in turn between two side bars and being set in the same direction along side bar and the joist across expansion joint and below central sill, each side bar and each central sill are supported and are installed on joist, central sill includes the web being vertically arranged and horizontally disposed bottom plate, web is installed on bottom plate, and bottom plate is connected and fixed on joist by bearing；A kind of bridge, including above-mentioned telescopic device are also provided.In the utility model, fixation is connected by the way of pressure-bearing connection between each central sill and joist so that connection mode is simple and reliable between central sill and joist, meanwhile, the mechanics power transmission process of power is simple between central sill and joist, and power transmission effect is good.
Description
Technical field
It the utility model is related to expansion joint, more particularly to a kind of modular expansion device and bridge with pressure-bearing connection
Beam.
Background technology
Telescopic device is the key position in bridge member, is played an important role in bridge function is realized.National standard
《Standard for terms used in road engineering》(GBJ124-1988) and traffic industry standard《Highway engineering noun structure term》(JTJ 002-
87) definition to bridge extension joint is：To make vehicle smoothly pass bridge floor and meeting the needs of bridge deck structure deformation, in bridge floor
The general name of the device set at variator.
At present, common bridge extension joint can be divided into according to system：1. modulus bridge expansion device；2. fishback
Bridge extension joint, such as common comb plate bridge expansion device, modular multi-directional deflection comb plate bridge expansion device, module comb
Toothed plate type Multidirectional displacement bridge expansion device etc..
Traditional modulus seam does not have multi-directional deflection function, meanwhile, stitched for modulus, the modulus type with pressure-bearing connection is stretched
The Major Diseases of compression apparatus are shown as：
1. anchoring piece destroys；
2. middle beam snaps, is broken, occurs rocking, noise；Central sill local deformation flexural downwarping, shaped steel concave-convex surface is not
It is flat；
3. flexible uniformity is poor, displacement control system failure；
4. controller perturbation element, pressure-bearing supporting is with compressing supporting disease；
5. the rapid aging of caulking gum band, come off or rupture, serious leak；Rubbish is overstock excessively in caulking gum band,
Influence Telescopic.
And the deformed steel in existing market has the modular expansion device of pressure-bearing connection, existing longitudinal extension gap
Greatly, the uneven, impact force that stretches is concentrated, jumps phenomena such as car is serious, concrete is frangible, extensible member spoilage is high, manufacturing expense is big
It is more prominent.Particularly to suspension bridge, cable-stayed bridge, and tiltedly, curved bridge, since bridge structure is unavoidably there are multidirectional displacement, because
The defects of inadaptable transverse direction and multi-directional deflection requirement have seriously been exposed during this use.And height is required vertical deformation, indulge,
The big cable-stayed bridge of lateral deflection, suspension bridge etc., the modular expansion device that traditional bridge has pressure-bearing connection are then difficult to meet it
The requirement of multi-directional deflection.
Utility model content
The purpose of this utility model is to provide a kind of modular expansion device with pressure-bearing connection, it is intended to for solving
In existing modular expansion device between joist and central sill the problem of connection structure reliability.
The utility model is realized in this way：
The utility model embodiment provides a kind of modular expansion device with pressure-bearing connection, including positioned at expansion joint two
Two side bars of side, two side bars are oppositely arranged, and are further included and are set in turn between two side bars and along the side
At least one central sill and the joist across the expansion joint and below the central sill that beam is set in the same direction, each side bar
And each central sill is supported and is installed on the joist, the central sill includes the web that is vertically arranged and horizontally disposed
Bottom plate, the web is installed on the bottom plate, and the bottom plate is connected and fixed on the joist by sliding bearing.
Further, the bottom plate of the central sill is fixed with gate-type supporting hanger, and each central sill bottom plate is by described
Slide bearing to be supported on the joist, slip pressure is both provided between the joist and each gate-type supporting hanger
Tight bearing.
Further, the slip compressing support be located at below the joist, the slip compressing support with it is described
Second link slot of joist clamping.
Further, each central sill and between the side bar of its face or another central sill using anti-
Glue bar connects, and the waterproof adhesive tape bends successively along the length direction of the joist, and its both ends respectively with it is corresponding described in
The bottom plate lower surface of side bar or the corresponding central sill is fitted and connected.
Further, each side bar is respectively provided with to the first horizontal-extending slide plate of the correspondence central sill, each described
The two relative side evidence of central sill has the second horizontal-extending slide plate, each second slide plate and corresponding first slide plate
Or partly overlapped between corresponding second slide plate, and each first slide plate be respectively positioned on each second slide plate it is corresponding
The underface of the waterproof adhesive tape.
Further, two ends of the joist are respectively movable end and fixing end, the movable end and the fixation
Installed respectively by sliding bearing with stationary balls bearing on the concrete of the expansion joint both sides at end.
The utility model embodiment also provides a kind of bridge, including two abutments and at least one beam body, further include to
The few one above-mentioned modular expansion device with pressure-bearing connection, each modular expansion device with pressure-bearing connection
Each side bar be installed in wherein one abutment or wherein one beam body.
The utility model has the advantages that：
In the telescopic device of the utility model, side bar is both provided with the concrete of expansion joint both sides, and between side bar
At least one central sill is then installed on, and side bar can be supported fixation, and the bottom plate of each central sill with central sill by joist
Fixation is connected using bearing between joist, bearing connects central sill and joist by the way of pressure-bearing connection, makes
Obtain the damage that the transmission efficiency of power between central sill and joist is higher, and reduction automotive wheel produces central sill when rolling, Er Qieshou
It can be produced relative sliding to during shearing action, and then can play the role of protecting connection structure between joist and central sill.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the structure diagram for the modular expansion device with pressure-bearing connection that the utility model embodiment provides；
The modular expansion device with pressure-bearing connection that Fig. 2 is Fig. 1 is installed in the structure diagram on expansion joint；
The connection of the lateral node plate and elastic displacement case of the modular expansion device with pressure-bearing connection that Fig. 3 is Fig. 1
Structure diagram；
Fig. 4 is enlarged drawing at the A of Fig. 3；
The steel ball hold-down support for the modular expansion device joist position fixed ends with pressure-bearing connection that Fig. 5 is Fig. 1
Structure diagram；
Fig. 6 be Fig. 1 have pressure-bearing connection modular expansion device gantry type support the bearing of hanger position with
The mounting structure schematic diagram of compressing support.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
The all other embodiment obtained, shall fall within the protection scope of the present invention.
Referring to Fig. 1 and Fig. 2, the utility model embodiment provides a kind of modular expansion device 1 with pressure-bearing connection,
Including two side bars 11, side bar 11 is vertically opposite set between two side bars 11 at the concrete 21 of 2 both sides of expansion joint
To put, telescopic device 1 further includes joist 12 and at least one central sill 13, between each central sill 13 may be contained within two side bars 11, and
Be arranged at intervals successively along the length direction of joist 12, each central sill 13 with and its face side bar 11 or another central sill 13 it
Between connected using waterproof adhesive tape 14, joist 12 is across the expansion joint 2 and positioned at two side bars 11 and each central sill 13
Underface, forms the vertical supporting to above-mentioned each beam, two ends of joist 12 along its length are adopted respectively by joist 12
It is installed on slip bearing 16 and stationary balls bearing 15 on the concrete 21 of 2 both sides of expansion joint.In the present embodiment,
It is tightly connected between adjacent side bar 11 and central sill 13 and between adjacent two central sills 13 using waterproof adhesive tape 14, suitable
While answering the telescopic variation at expansion joint 2, meet the waterproof requirement at expansion joint.Meanwhile the wherein one end of joist 12 is using solid
To determine steel ball bearing 15 to install on concrete 21, the other end is installed on opposite side concrete 21 by sliding bearing 16,
When 2 telescopic variation of expansion joint, joist 12 can be relatively fixed steel ball bearing 15 and slide bearing 16 and move, to adapt to
This telescopic variation at expansion joint 2, and can adapt to the multidirectional change produced during automotive wheel traveling to telescopic device 1
Position.
Referring to Fig. 2-Fig. 4, optimizing above-described embodiment, each waterproof adhesive tape 14 is bent successively along the length direction of joist 12,
And top plate 133 lower edge inner surface of its both ends respectively with corresponding side bar 11 or corresponding central sill 13 is bonded., will in the present embodiment
Waterproof adhesive tape 14 is bent, and it is in the wavy shape repeatedly bent to make it have at least part structure, its length along joist 12
Spending direction has preferable elasticity, is adapted to the deformation requirements at expansion joint 2；Meanwhile waterproof adhesive tape 14 is tied using this fold
Structure shape, makes it compared to the main telescopic variation of traditional adhesive tape by vertically switching to transverse direction；Between adhesive tape and side bar 11, central sill 13
The relatively traditional flying bird formula waterproof adhesive tape in gap be greatly decreased, reduce the accumulation such as rubbish, simultaneously because waterproof adhesive tape after folding
14 wavy repeatedly bending structure shape, after on stone or silting to waterproof adhesive tape 14, when telescopic device 1 is whole
When body is shunk, by 14 telescopic variation of waterproof adhesive tape, stone on waterproof adhesive tape 14 or silt can will be accumulated in by both sides
Extrude between beam 11, taken out of with wheel, so as to achieve the purpose that slagging-off.
Continuing to optimize above-described embodiment, each side bar 11 is respectively provided with to the first horizontal-extending slide plate 111 of corresponding central sill 13,
The two relative side evidence of each central sill 13 has the second horizontal-extending slide plate 131, every one second slide plate 131 and corresponding first
Partly overlapped between slide plate 111 or corresponding second slide plate 131, and each first slide plate 111 is respectively positioned on each second slide plate 131
The underface of corresponding waterproof adhesive tape 14.In the present embodiment, the first slide plate 111 and the second slide plate 131 overlap or two second cunnings
Overlapped between plate 131, form overlap joint.When expansion joint 2 deforms, upper corresponding first slide plate 111 and second is slided in the horizontal direction
Opposite slip, on the other hand, the first slide plate 111 and second can be formed between plate 131 or between two the second slide plates 131
Slide plate 131 is respectively positioned on the lower section of corresponding waterproof adhesive tape 14, and waterproof adhesive tape 14 can be contacted with both, or be separated by, but spacing
It is very small, vertical supporting role can form waterproof adhesive tape 14 by the first slide plate 111 and the second slide plate 131.Work as waterproof
Adhesive tape 14 is subject to rubble to extrude, and the first slide plate 111 can be that corresponding waterproof adhesive tape 14 provides reaction force with the second slide plate 131,
Rubble can be caused after the rolling of wheel, to be taken out of with gap of the wheel between side bar 11 and central sill 13, and then reduce card stone
The generation of phenomenon.Traditional flying bird formula waterproof adhesive tape can not provide bearing reaction, therefore, rubble enters side since lower section is without supporting
Behind gap between beam 11 and central sill 13, in the case where wheel rolls, it is easy to puncture adhesive tape, or to collapse adhesive tape de-, this flexible dress
The design put, the occurrence of reducing these, greatly improved the service life of adhesive tape.
Referring to Fig. 4, further optimize the structure of side bar 11 and central sill 13, side bar 11 and 13 top plate of central sill lower section are also all provided with
It is equipped with L-type plate 141, each L-type plate 141 and the U-type groove that opening upwards are formed between corresponding side bar 11 or central sill 13
142, two ends of waterproof adhesive tape 14 are clamped in corresponding two U-type grooves 142 respectively.By on side bar 11 and central sill 13
The U-type groove 142 of opening upwards is set, on the premise of waterproof sealing is ensured, waterproof adhesive tape 14 and corresponding side bar 11 can be simplified
And the installation between corresponding central sill 13.
Referring to Fig. 1 and Fig. 2, further, telescopic device 1 further includes the first displacement case 121 and second displacement case 122,
Both of which is embedded in the concrete 21 of 2 both sides of expansion joint, and the first displacement case 121 is stretched into activity respectively for two ends of joist 12
And in second displacement case 122.In the present embodiment, the first displacement case 121 and second displacement case 122 are in babinet, joist 12
Two ends be respectively protruding into it is foregoing rotate or slide in the first displacement case 121 and second displacement case 122 in both, with
Adapt to the displacement request of telescopic device.
Further, two side bars 11 can also support respectively is fixed on corresponding first displacement case 121 or second
Move on case 122.With continued reference to Fig. 2 and Fig. 5, usually, stationary balls bearing 15 is located at the opening of the first displacement case 121,.
In the present embodiment, the upper and lower edge of 12 fixing end of joist passes through the upper lower support plate and displacement case, joist beam of stationary balls bearing 15
Weldering between body connects, and forms being fixedly connected between joist 12 and displacement case 121.This fit structure is similar to " multi-directional ball
Hinge ", joist 12 is respectively provided with good adaptability to vertical corner, transverse translation corner.For stationary balls bearing 15, due to it
For steel ball bearing, problem of aging, service life length, with the expansion joint 2 agent structure same service life is not present relative to plastic cement bearing in it.
Further, joist 12 is movable end close to one end of slip bearing 16, the structure of part on joist
To slide compressing support 17, and positioned at joist lower part structure to slide bearing 16, slide bearing 16 positioned at the
The opening of two displacement casees 122, joist 12, which is supported on, to be slided on bearing 16, flexible with expansion joint 2, is sliding pressure-bearing branch
Slided on seat 16.Meanwhile to slide compressing support 17 above 12 movable end of joist, it is installed on second displacement case 122 and joist
Between 12, it can play the role of compressing joist 12 by applying certain pre-applied force.
With continued reference to Fig. 2 and Fig. 3, further, central sill 13 includes web 131 and bottom plate 132, and web 131 is vertical
Set, bottom plate 132 is horizontally disposed, and web 131 can be integrally formed with bottom plate 132, weldering can also be used to connect.
Referring again to Fig. 4, central sill 13 supports hanger 18 by gantry type with joist 12 and is fixedly connected with central sill 13 and joist 12
Between be bearing 16, what it is positioned at the lower section of joist 12 is then compressing support 17.Referring to Fig. 2 and Fig. 6, pressure-bearing branch is refined
The structure of seat 16, it is trough body structure shape to slide 16 surface of bearing, and groove body top layer has polytetrafluoroethylene (PTFE) slide plate 161, groove
There is surface layer polytetrafluoroethylene (PTFE) slide plate 161 to be bonded with 12 upper surface of joist, and 12 upper surface of joist completely spreads 2~3mm minute surfaces not
Become rusty steel plate, slide bearing 16 can be slidably connected along the length direction of joist 12, slide bearing 16 by pre-applied force with
Its clamping of joist 12 so that both are integral in connection, and accordingly, sliding compressing support 17 also has polytetrafluoroethylene (PTFE) slide plate
171, the lower surface of itself and joist 12 is slidably connected.A limited block 134 is welded with the lower surface of bottom plate 132, slides pressure-bearing branch
Seat 16 is fixed on the lower section of bottom plate 132 by limited block 134, and each slip compressing support 17 is fixed by another limited block 134
In on force transmission beam 182.Connected and fixed by some pull rods 183 between force transmission beam 182 and corresponding bottom plate 132, each pull rod
183 are vertically arranged.An entirety is connected as by pull rod 183 between force transmission beam 182 and corresponding central sill 13, and then passes through biography
Power crossbeam 182 realizes the sliding connection structure of central sill 13 and compressing support 18, and the upper end of each pull rod 183 and corresponding central sill 13
The welding of 132 first layer of bottom plate, meanwhile, the upper end of each pull rod 183 separately has an annular steel pile casting 181, annular steel pile casting 181 with
The bottom plate 132 of corresponding central sill 13 carries out second layer welding, and 183 lower end of each pull rod then through corresponding force transmission beam 182 and both
Between locked by nut 184, simple in structure, stability is higher.Each force transmission beam 182 is corresponding with 2 pull rods 183,
Square anchor ear is formed, joist 12 is integral by passing through among it so that joist 12 is connected with each central sill 13.And due to
Locked between the lower end of pull rod 183 and force transmission beam 182 by nut 184, can play adjusting by rotating nuts 184 to this passes
The effect of pretightning force between power crossbeam 182 and corresponding compressing support 17.
Optimize above-described embodiment, second displacement case 122 corresponds to the movable end of joist 12, then can make second displacement case 122
It is standby into horn-like, and along the direction bore flaring away from expansion joint 2.In the present embodiment, joist 12 stretches into second displacement case 122
Part as movable end, in practical engineering application, since a variety of loads such as temperature, sedimentation, wind-force, wheel load influence, support
The end of beam 12 may have multi-directional deflection in second displacement case 122, this point is outstanding in Large Span Bridges or curving bridge
To be obvious, second displacement case 122 is designed as horn-like so that joist 12 has larger activity space in it, so as to hold in the palm
Beam 12 has the anchoring to multidirectional displacement.
Further, crab-bolt 123 is also respectively and fixedly provided with the first displacement case 121 and second displacement case 122, anchors blind rivet
123 horizontally extend into the concrete 21 of respective side, to improve corresponding first displacement case 121 or second displacement case 122 mixed
Stability in solidifying soil 21.
Referring again to Fig. 2 and Fig. 3, further, anchor drawing is also separately installed with the concrete 21 of 2 both sides of expansion joint
Plate 112, two side bars 11 are respectively positioned between two anchor tie plates 112, and each side bar 11 is both secured on corresponding anchor tie plate 112.
Anchor tie plate 112 is embedded in the concrete 21 of respective side, and corresponding side bar 11 can form fixation by welding.
Optimize above-described embodiment, gantry type embedded bar is also embedded with respectively in the concrete 21 of 2 both sides of expansion joint
113, which extends to the lower section of the anchor tie plate 112 of respective side, and it is between the anchor tie plate 112 of respective side
Welding.Specially 113 square frame structure of gantry type reinforcing bar is pre-buried when expansion joint both sides beam body (or abutment) is constructed, and stretches
It is that two-sided welding is carried out between anchor tie plate 112 and gantry type reinforcing bar 113 to stitch installation, to increase the anchoring after telescopic device installation
Property.
Usually, be also embedded with steel hoop in concrete 21, steel hoop by respective side anchor tie plate 112 it is outer
Side is horizontal-extending, i.e. gantry type reinforcing bar 113 is vertically extending with respect to anchor tie plate 112, and steel hoop is then relative to anchor tie plate 112
It is horizontal-extending, the gantry type reinforcing bar 113 of steel hoop and respective side is welded, so that by the steel hoop of the same side, gantry type
Reinforcing bar 113 and anchor tie plate 112 are connected as an entirety, further increase anchoring during telescopic device installation.
Further, gusset plate 135 is also respectively and fixedly provided with the lower section of the lower section of each side bar 11 and each central sill 13, respectively
Gusset plate 135 is vertically arranged, and when gusset plate 135 and side bar 11 to it is corresponding when itself and side bar 11 web 131 be located at always
On line, and when with central sill 13 to it is corresponding when web 131 then with central sill 13 be located along the same line, each gusset plate 135 is along joist
12 length direction is arranged at intervals successively, and direction across bridge staggers with joist 12, in addition logical between two adjacent gusset plates 135
Cross can the elastic connection plate 19 of horizontal extension connect.In the present embodiment, gusset plate 135 is connected with corresponding side bar 11 or central sill 13
For an entirety, each elastic connection plate 19 can stretch in the horizontal direction, and edge is perpendicular to each bullet of length direction of joist 12
Property connecting plate 19 is arranged at intervals successively, two ends of each elastic connection plate 19 respectively with 135 anchor of corresponding two gusset plates
Bolt consolidates.19 stress of elastic connection plate can be conducive to using crab-bolt consolidation, prevent fatigue rupture.Since elastic connection plate 19 can
To stretch in the horizontal direction, the deformation requirements at expansion joint 2 are disclosure satisfy that, and its both ends passes through " elastic connection hinge " 193 and position
Case connection is moved, so that the displacement control system being made of elastic connection plate 19 has the adaptability to vertical corner, so that
Telescopic device has the adaptability to multidirectional displacement.Referring to Fig. 1 and Fig. 3, the structure of elastic connection plate 19 is refined, it is by tablet
Two shrapnel parts 191 being oppositely arranged are bent to form, two shrapnel parts 191 are enclosed arch horizontally toward, and support respectively
It is against on corresponding two gusset plates 135.Elastic connection plate 19 is bow-shaped structural, and the opening of bow-shaped structural is towards expansion joint 2
Length extending direction, two shrapnel parts 191 are vertically arranged, and are partly fitted in respectively on corresponding gusset plate 135, and respectively with
Crab-bolt consolidation is carried out between corresponding node plate 135, it passes through Flexible change of two shrapnel parts 191 along the length direction of joist 12
To adapt to the deformation requirements at expansion joint 2.Usually, each telescopic device 1 includes multiple elastic connection plates 19, and along vertical
In the length direction of joist 12 (two are oppositely arranged positioned at middle elastic connection plate 19 elastic connection plate 19 adjacent with wherein one
The opening of the bow-shaped structural of elastic connection plate 19 is opposite), it is disposed opposite to each other (two elasticity companies with another adjacent elastic connection plate 19
The opening of the bow-shaped structural of fishplate bar 19 mutually deviates from).It can certainly make the opening of each elastic connection plate 19 towards identical, respectively
The distance between elastic connection plate 19 all same, i.e., each elastic connection plate 19 are equal successively along the length direction perpendicular to joist 12
Even arrangement.
Referring to Fig. 1-Fig. 3, further, at least two elastic displacement casees 192 are further included, each elastic displacement case 192 is distinguished
It is embedded in the concrete 21 of 2 both sides of expansion joint, it is similar with the first displacement case 121 and second displacement case 122, along joist 12
Length direction, each elastic connection plate 19 for being located along the same line corresponds to two elastic displacement casees 192, and when having multigroup position
When elastic connection plate 19 on same straight line, then elastic displacement case 192 also has multiple.
In the present embodiment, generally each elastic connection plate 19 is respectively positioned at the joist 12, i.e. the first displacement case 121 and
Nearby be correspondingly arranged on an elastic displacement case 192 at second displacement case 122, engineering in practice, the first displacement case 121 and the
Two displacement casees 122 separate arrangement with 192 direction across bridge of elastic displacement case, i.e. elastic displacement case 19 can be laid and two first displacement casees
Among 121.
Further, along joist 12 length direction and pass through " elastic connection hinge " positioned at two gusset plates 135 in outside
193 is hinged with corresponding two elastic displacement casees 192, so that the elastic displacement control system being made of elastic connection plate 19 has
There is the adaptability to vertical corner, so that telescopic device has the adaptability to multidirectional displacement.
Optimize above-described embodiment, each elastic connection plate 19 with and its close joist 12 it is contour.When external force acts on joist 12
During rotation, the elastic displacement control system being made of each elastic connection plate 19 can be coaxial with joist 12.
Referring again to Fig. 1 and Fig. 2, the embodiment of the present invention also provides a kind of bridge, including two abutments and at least one
A beam body 3, forms expansion joint 2 between two adjacent beam bodies 3 or between beam body 3 and abutment, bridge further includes at least one
A above-mentioned telescopic device 1, two side bars 11 of each telescopic device 1 are located at the both sides at the expansion joint 2 respectively, specially flexible
Two side bars 11 of device 1 be respectively arranged in two adjacent beam bodies 3 or be respectively arranged in a wherein abutment and with this
In the adjacent beam body 3 of abutment, while two ends of each joist 12 are also respectively adopted and slide bearing 16 and fixed steel
Tumbler bearing 15 is fixed in two adjacent beam bodies 3 or is respectively arranged in a wherein abutment and the beam body adjacent with the abutment
On 3.The present embodiment can not only meet the deformation requirements at corresponding expansion joint 2, can be row by the telescopic device 1 of this structure
Car provides continuous traffic loading end, and has preferable water resistance, and disclosure satisfy that 2 multi-directional deflection requirement of expansion joint.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on, should be included in the utility model
Protection domain within.
Claims (7)
1. a kind of modular expansion device with pressure-bearing connection, including two side bars positioned at expansion joint both sides, described in two
Side bar is oppositely arranged, it is characterised in that：Further include and be set in turn between two side bars and set in the same direction along the side bar
At least one central sill and the joist across the expansion joint and below the central sill, each side bar and each described
Central sill, which supports, to be installed on the joist, and the central sill includes the web being vertically arranged and horizontally disposed bottom plate, described
Web is installed on the bottom plate, and the bottom plate is connected and fixed on the joist by sliding bearing.
2. the modular expansion device as claimed in claim 1 with pressure-bearing connection, it is characterised in that：The bottom plate of the central sill
Gate-type supporting hanger is fixed with, each central sill bottom plate is supported on the joist by the slip bearing, institute
State and be both provided with slip compressing support between joist and each gate-type supporting hanger.
3. the modular expansion device as claimed in claim 2 with pressure-bearing connection, it is characterised in that：Described slide compresses branch
Seat is below the joist, and the compressing support that slides is with the second link slot with the joist clamping.
4. the modular expansion device as claimed in claim 1 with pressure-bearing connection, it is characterised in that：Each central sill with
Connected between the side bar of its face or another central sill using waterproof adhesive tape, the waterproof adhesive tape is along the support
The length direction of beam is bent successively, and apparent surface of its both ends respectively with the corresponding side bar or the corresponding central sill pastes
Close connection.
5. the modular expansion device as claimed in claim 4 with pressure-bearing connection, it is characterised in that：Each side bar is equal
With horizontal-extending according to having to the first horizontal-extending slide plate of the correspondence central sill, the two relative side of each central sill
Second slide plate, is partly folded between each second slide plate and corresponding first slide plate or corresponding second slide plate
Close, and each first slide plate is respectively positioned on the underface of the corresponding waterproof adhesive tape with each second slide plate.
6. the modular expansion device as claimed in claim 1 with pressure-bearing connection, it is characterised in that：Two of the joist
End is respectively movable end and fixing end, and the movable end is with the fixing end respectively by sliding bearing and stationary balls
Bearing is installed on the concrete of the expansion joint both sides.
7. a kind of bridge, including two abutments and at least one beam body, it is characterised in that：Further include at least one as right will
Ask 1-6 any one of them that there is the modular expansion device of pressure-bearing connection, each modulus type with pressure-bearing connection is stretched
Each side bar of compression apparatus is installed in wherein one abutment or wherein one beam body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620945287.XU CN207227945U (en) | 2016-08-25 | 2016-08-25 | Modular expansion device and bridge with pressure-bearing connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620945287.XU CN207227945U (en) | 2016-08-25 | 2016-08-25 | Modular expansion device and bridge with pressure-bearing connection |
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| Publication Number | Publication Date |
|---|---|
| CN207227945U true CN207227945U (en) | 2018-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620945287.XU Active CN207227945U (en) | 2016-08-25 | 2016-08-25 | Modular expansion device and bridge with pressure-bearing connection |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108867356A (en) * | 2018-09-29 | 2018-11-23 | 合诚工程咨询集团股份有限公司 | Bridge expansion joint installation |
| CN110629666A (en) * | 2019-10-30 | 2019-12-31 | 中国建筑第七工程局有限公司 | Bridge expansion joint |
| CN111305060A (en) * | 2020-04-21 | 2020-06-19 | 衡水旗舰桥隧橡塑有限公司 | Rotary rod type multidirectional displacement bridge expansion device |
-
2016
- 2016-08-25 CN CN201620945287.XU patent/CN207227945U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108867356A (en) * | 2018-09-29 | 2018-11-23 | 合诚工程咨询集团股份有限公司 | Bridge expansion joint installation |
| CN110629666A (en) * | 2019-10-30 | 2019-12-31 | 中国建筑第七工程局有限公司 | Bridge expansion joint |
| CN111305060A (en) * | 2020-04-21 | 2020-06-19 | 衡水旗舰桥隧橡塑有限公司 | Rotary rod type multidirectional displacement bridge expansion device |
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