CN206337500U - Can multi-directional deflection modular expansion device and bridge - Google Patents

Abstract

The utility model provide it is a kind of can multi-directional deflection modular expansion device and bridge, retractor device includes two side bars positioned at expansion joint both sides, two side bars are oppositely arranged, also include at least one central sill and the joist across expansion joint and below central sill for being set in turn between two side bars and being set in the same direction along side bar, each side bar and each central sill are supported and are installed on joist, and movable bearing is respectively adopted for the two ends of joist and stationary balls bearing is fixed on the both sides at expansion joint；A kind of bridge, including above-mentioned retractor device are also provided.In retractor device of the present utility model, because joist one end is supported on slip bearing, one end is supported on stationary balls bearing, therefore, one end of joist is similar to articulated structure, and the other end is movable end so that joist can be to vertical corner, transverse translation corner is respectively provided with good adaptability, can adapt to the multi-directional deflection that the telescopic variation and automotive wheel traveling at expansion joint are produced to retractor device.

Description

Can multi-directional deflection modular expansion device and bridge

Technical field

The utility model is related to expansion joint, more particularly to it is a kind of can multi-directional deflection modular expansion device and bridge.

Background technology

Retractor 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》And traffic industry standard (GBJ124-1988)《Highway engineering noun structure term》(JTJ 002- 87) definition to bridge extension joint is：For vehicle is smoothly passed bridge floor and meet bridge deck structure deformation the need for, in bridge floor The general name of the device set at variator.

At present, conventional 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 main disease of modular expansion device Evil is shown as：

1. anchoring piece is destroyed；

2. middle beam snap, be broken, occurring rocking, noise；Central sill local deformation flexural downwarping, shaped steel concave-convex surface is not It is flat；

3. uniformity of stretching 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 overstocks excessive in caulking gum band, Influence Telescopic.

And the deformed steel modular expansion device in existing market, existing longitudinal extension gap is big, flexible uneven, punching The phenomenons such as power is concentrated, jump car is serious, concrete is frangible, extensible member spoilage is high, manufacturing expense is big are hit more to protrude.Particularly To suspension bridge, cable-stayed bridge, and tiltedly, curved bridge, because unavoidably there is multidirectional displacement in bridge structure, therefore tight during use The defect of inadaptable transverse direction and multi-directional deflection requirement is exposed again.And high is required to vertical deformation, vertical, horizontal conjugates big oblique pull Bridge, suspension bridge etc., traditional modular expansion device for bridge are then difficult to the requirement for meeting its multi-directional deflection.

Utility model content

The purpose of this utility model be provide it is a kind of can multi-directional deflection modular expansion device, it is intended to it is existing for solving The problem of some retractor devices are difficult to meet expansion joint multi-directional deflection requirement.

What the utility model was realized in：

The utility model embodiment provide it is a kind of can multi-directional deflection modular expansion device, including positioned at expansion joint both sides Two side bars, two side bars are oppositely arranged, also including being set in turn between two side bars and along the side bar At least one central sill for setting in the same direction and the joist across the expansion joint and below the central sill, each side bar with And each central sill is supported and is installed on the joist, two ends one end of the joist is fixing end, and the other end is movable end, Movable bearing support is respectively adopted and steel ball hold-down support is fixed on the both sides at the expansion joint.

Further, the joist fixing end includes being located at respectively above and below the joist fixing end both sides and relative set The two stationary balls bearings put, the movable end slides compressing support and positioned at position including being located at one above the joist One below the joist slides bearing, and the slip compressing support has polytetrafluoroethyl-ne with the bearing surface Alkene slide plate, each polytetrafluoroethylene (PTFE) slide plate is slidably contacted the surfaces with joist.

Further, each central sill and and its just to the side bar or another central sill between using anti- Glue bar is connected, and length direction of the waterproof adhesive tape along the joist bend successively, and its both ends respectively with it is corresponding described in The top board lower surface of side bar or the correspondence 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 of central sill is according to 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, also it is vertically fixed node in the lower section of the lower section of each side bar and each central sill Plate, each gusset plate and the joist stagger between setting, and the two neighboring gusset plate by can horizontal extension Elastic connection plate is connected.

Further, the elastic connection plate is bent into two shrapnel parts being oppositely arranged, and two shell fragments enclose shape Into arch horizontally toward, and bear against on the two neighboring gusset plate.

Further, there are multiple elastic connection plates, described in adjacent two between the two neighboring gusset plate It is oppositely arranged or is disposed opposite to each other between elastic connection plate.

Further, also including at least two elastic displacement casees being embedded in respectively in the concrete of the expansion joint both sides, Two gusset plates for being located at outside along the length direction of the joist are cut with scissors with the corresponding two elastic displacement casees respectively Connect.

Further, the elastic connection plate corresponding to side bar bottom described in two passes through elasticity hinge and the elastic position Case connection is moved, each elastic connection plate is contour with the joist.

The utility model embodiment also provides a kind of bridge, including two abutments and at least one beam body, also including extremely Few one it is above-mentioned can multi-directional deflection modular expansion device, it is each it is described can multi-directional deflection modular expansion device it is every Side bar described in one is installed on wherein described in one abutment or wherein described in one in beam body.

The utility model has the advantages that：

In retractor device of the present utility model, side bar is 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 with central sill by joist, joist two ends are then adopted respectively Be fixed on the both sides at expansion joint with travel(l)ing rest and steel ball hold-down support, joist close to one end of steel ball hold-down support with it is corresponding It is similar to and is hinged between the concrete of side, coordinates with travel(l)ing rest so that joist can be to vertical corner, and transverse translation corner is equal With good adaptability, the multi-directional deflection at expansion joint can adapt to.

Brief description of the drawings

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the accompanying drawing to be used needed for 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 present utility model, for those of ordinary skill in the art, is not paying the premise of creative work Under, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 for the utility model embodiment provide can multi-directional deflection modular expansion device structural representation；

Fig. 2 for Fig. 1 can the modular expansion device of multi-directional deflection install in the structural representation on expansion joint；

Fig. 3 for Fig. 1 can multi-directional deflection modular expansion device lateral node plate and elastic displacement case connection knot Structure schematic diagram；

Fig. 4 is enlarged drawing at Fig. 3 A；

Fig. 5 for Fig. 1 can the stretch structure of steel ball hold-down support of joist position fixed ends of modulus type of multi-directional deflection show It is intended to；

Fig. 6 for Fig. 1 can multi-directional deflection modular expansion device gallows frame position slip bearing with slide The mounting structure schematic diagram of compressing support.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The all other embodiment obtained, belongs to the scope of the utility model protection.

Referring to Fig. 1 and Fig. 2, the utility model embodiment provide it is a kind of can multi-directional deflection modular expansion device 1, bag Two side bars 11 are included, side bar 11 is vertically to be oppositely arranged at the concrete 21 of the both sides of expansion joint 2, between two side bars 11, Retractor device 1 also includes joist 12 and at least one central sill 13, and each central sill 13 may be contained between two side bars 11, and edge The length direction of joist 12 interval setting successively, each central sill 13 and and its just to side bar 11 or another central sill 13 between Connected using waterproof adhesive tape 14, joist 12 across described expansion joint 2 and positioned at two side bars 11 and each central sill 13 just under Side, forms the vertical supporting to above-mentioned each beam, cunning is respectively adopted in two ends of joist 12 along its length by joist 12 Dynamic bearing 16 and stationary balls bearing 15 are installed on the concrete 21 of the both sides of expansion joint 2.It is adjacent in the present embodiment It is tightly connected between side bar 11 and central sill 13 and between adjacent two central sills 13 using waterproof adhesive tape 14, is adapting to flexible While the telescopic variation of seam 2, the waterproof requirement at expansion joint is met.Meanwhile, the wherein one end of joist 12 uses stationary balls Bearing 15 is installed on concrete 21, and the other end is installed on opposite side concrete 21, when flexible by sliding bearing 16 When stitching 2 telescopic variation, joist 12 can be relatively fixed steel ball bearing 15 and rotate, can also be flat relative to bearing 16 is slided Move, to adapt to the telescopic variation at expansion joint 2, and can adapt to during automotive wheel is travelled to many of the generation of retractor device 1 To displacement.

Referring to Fig. 2-Fig. 4, optimize above-described embodiment, length direction of each waterproof adhesive tape 14 along joist 12 is bent successively, And top board 133 inner surface of its both ends respectively with corresponding side bar 11 or correspondence central sill 13 is fitted.In the present embodiment, by waterproof Adhesive tape 14 is bent, and makes it have at least part structure in the wavy profile repeatedly bent, its length side along joist 12 To with preferable elasticity, the deformation requirements at expansion joint 2 are adapted to；Meanwhile, waterproof adhesive tape 14 is using outside this foldable structure Shape, makes it compared to the main telescopic variation of traditional adhesive tape by vertically switching to transverse direction；Between between adhesive tape and side bar 11, central sill 13 The relatively conventional flying bird formula waterproof adhesive tape of gap is greatly decreased, and reduces the accumulation such as rubbish, simultaneously because waterproof adhesive tape 14 after folding Wavy multiple bending structure profile, after on stone or silting to waterproof adhesive tape 14, when the overall shrinkage of retractor device 1 When, by the telescopic variation of waterproof adhesive tape 14, will can accumulate in stone or silt on waterproof adhesive tape 14 by two side bars 11 it Between extrude, taken out of with wheel, so as to reach the purpose of slagging-off.

Continue to optimize above-described embodiment, each side bar 11 is respectively provided with to the first horizontal-extending slide plate 111 of correspondence central sill 13, The two relative side of each central sill 13 is respectively provided with 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 correspondence waterproof adhesive tape 14.In the present embodiment, the first slide plate 111 and the second slide plate 131 are overlapped or two second cunnings Overlapped between plate 131, form overlap joint.When expansion joint 2 is deformed, upper corresponding first slide plate 111 and second is slided in the horizontal direction Relative slip can be formed between plate 131 or between two the second slide plates 131, on the other hand, the first slide plate 111 and second is slided Plate 131 is respectively positioned on the lower section of correspondence waterproof adhesive tape 14, and waterproof adhesive tape 14 can be contacted with both, or be separated by, but spacing is non- It is often small, vertical supporting role can be formed to waterproof adhesive tape 14 by the first slide plate 111 and the second slide plate 131.Work as marine glue Bar 14 is extruded by rubble, and the first slide plate 111 can provide reaction force with the second slide plate 131 for corresponding waterproof adhesive tape 14, can Make it that rubble after the rolling of wheel, is taken out of with gap of the wheel between side bar 11 and central sill 13, and then reduce card stone to show The generation of elephant.Traditional flying bird formula waterproof adhesive tape is because lower section is without supporting, it is impossible to provide bearing reaction, and therefore, rubble enters side bar Behind gap between 11 and central sill 13, in the case where wheel is rolled, it is easy to puncture adhesive tape, or de-, this retractor device that collapses adhesive tape Design, the service life of adhesive tape greatly improved in the occurrence of reducing these.

Referring to Fig. 4, further optimization side bar 11 and central sill 13 structure, also it is all provided with below side bar 11 and the top board of central sill 13 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 correspondence central sill 13.

Referring to Fig. 1 and Fig. 2, further, retractor device 1 also includes the first displacement case 121 and second displacement case 122, Both of which is embedded in the concrete 21 of the both sides of expansion joint 2, 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 is in casing with second displacement case 122, 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 retractor device.

Further, two side bars 11 can also be supported 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 the fixing end of joist 12 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, long service life, with the agent structure same life-span of expansion joint 2 is not present relative to plastic cement bearing in it.

Further, joist 12 is movable end, the structure of part on joist close to one end of slip bearing 16 To slide compressing support 17, and the structure of part slides bearing 16 and is located at the to slide bearing 16 under the joist At the opening of two displacement casees 122, joist 12 is supported on slip bearing 16, flexible with expansion joint 2, is sliding bearing Slided on 16.Meanwhile, to slide compressing support 17 above the movable end of joist 12, it is installed on second displacement case 122 and joist 12 Between, by applying, certain pre-applied force can play a part of compressing joist 12.

With continued reference to Fig. 2 and Fig. 3, further, central sill 13 includes web 131 and base plate 132, and web 131 is vertical Set, base plate 132 is horizontally disposed with, and web 131 can be integrally formed with base plate 132, it would however also be possible to employ weldering connects.

Referring again to Fig. 4, central sill 13 is fixedly connected with joist 12 by gallows frame 18.Between central sill 13 and joist 12 i.e. For bearing 16, what it is positioned at the lower section of joist 12 is then slip compressing support 17.Referring to Fig. 2 and Fig. 6, bearing 16 is refined Structure, the surface of bearing 16 is trough body structure profile, and cell body top layer has a polytetrafluoroethylene (PTFE) slide plate 161, cell body top layer tool There is polytetrafluoroethylene (PTFE) slide plate 161 to be fitted with the upper surface of joist 12, the upper surface of joist 12 completely spreads the stainless steel plate of 2~3mm minute surfaces, it is sliding Dynamic bearing 16 can be slidably connected along the length direction of joist 12, and sliding bearing 16, it blocks by pre-applied force and joist 12 Tightly so that both are integral in connection, accordingly, sliding compressing support 17 also has polytetrafluoroethylene (PTFE) slide plate 171, itself and joist 12 lower surface is slidably connected.A limited block 134 is welded with the lower surface of base plate 132, bearing 17 passes through limited block 134 The lower section of base plate 132 is fixed on, each slip compressing support 17 is fixed on force transmission beam 182 by another limited block 134.Pass It is connected between power crossbeam 182 and corresponding base plate 132 by some pull bars 183, each pull bar 183 is vertically arranged.Power transmission is horizontal An entirety is connected as by pull bar 183 between beam 182 and corresponding central sill 13, and then central sill 13 is realized by force transmission beam 182 With the sliding connection structure of compressing support 18, and the first layer of base plate 132 of the upper end of each pull bar 183 and corresponding central sill 13 is welded, Meanwhile, the upper end of each pull bar 183 separately has annular steel pile casting 181, and annular steel pile casting 181 enters with the base plate 132 of corresponding central sill 13 The row second layer is welded, and the lower end of each pull bar 183 is then locked through correspondence force transmission beam 182 and by nut 184 between the two, is tied Structure is simple, and stability is higher.Each force transmission beam 182 forms square anchor ear to should have 2 pull bars 183, joist 12 by Pass through, be integral so that joist 12 is connected with each central sill 13 in the middle of it.And the lower end due to pull bar 183 and force transmission beam Locked between 182 by nut 184, regulation force transmission beam 182 and corresponding compressing support can be played by rotating nut 184 to this The effect of pretightning force between 17.

Optimize above-described embodiment, the movable end of the correspondence joist 12 of second displacement case 122 can then 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 Partly as movable end, in practical engineering application, due to temperature, settle, wind-force, a variety of loads influences such as wheel load, joist 12 ends in second displacement case 122 may have multi-directional deflection, this point in Large Span Bridges or curving bridge particularly Substantially, second displacement case 122 is designed as horn-like so that joist 12 has larger activity space in it, so that joist 12 have the adaptability to multidirectional displacement.

Further, crab-bolt 123 is also respectively and fixedly provided with the first displacement case 121 and second displacement case 122, blind rivet is anchored 123 horizontally extend into the concrete 21 of respective side, to improve corresponding first displacement case 121 or second displacement case 122 mixed Anchoring in solidifying soil 21.

Referring again to Fig. 2 and Fig. 3, further, anchor drawing is also separately installed with the concrete 21 of the both sides of expansion joint 2 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 way of welding.

Optimize above-described embodiment, gantry type embedded bar is also embedded with respectively in the concrete 21 of the both sides of expansion joint 2 113, the gantry type reinforcing bar 113 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 the quadra structure of gantry type reinforcing bar 113 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 retractor device is installed Property.

Usually, be also embedded with steel hoop in concrete 21, steel hoop by respective side anchor tie plate 112 outside Horizontal-extending, i.e. gantry type reinforcing bar 113 is vertically extending with respect to anchor tie plate 112, and steel hoop is then water relative to anchor tie plate 112 Flat extension, 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 steel Muscle 113 and anchor tie plate 112 are connected as an entirety, anchoring when further increase retractor device is installed.

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 it is located at same straight line with the web 131 of side bar 11 when 11 pairs of gusset plate 135 and side bar are corresponding On, and the web 131 then with central sill 13 when corresponding with 13 pairs of central sill is located along the same line, and each gusset plate 135 is along joist 12 Length direction interval setting successively, direction across bridge staggers with joist 12, in addition by can between two adjacent gusset plates 135 The elastic connection plate 19 of horizontal extension is connected.In the present embodiment, gusset plate 135 is connected as one with corresponding side bar 11 or central sill 13 Individual entirety, each elastic connection plate 19 can stretch in the horizontal direction, and along each elasticity of the length direction perpendicular to joist 12 even The interval setting successively of fishplate bar 19, two ends of each elastic connection plate 19 are solid with corresponding two gusset plates 135 crab-bolt respectively Knot.The stress of elastic connection plate 19 can be conducive to using crab-bolt consolidation, fatigue rupture is prevented.Because elastic connection plate 19 can edge Horizontal direction is stretched, and disclosure satisfy that the deformation requirements at expansion joint 2, and its two ends passes through " elastic connection hinge " 193 and displacement case Connection, so that the displacement control system being made up of elastic connection plate 19 has the adaptability to vertical corner, so that flexible 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 flat plate buckling Form two shrapnel parts 191 being oppositely arranged, two shrapnel parts 191 enclose the arch to be formed horizontally toward, and bear against in On two gusset plates 135 of correspondence.Elastic connection plate 19 be bow-shaped structural, and bow-shaped structural opening towards expansion joint 2 length Bearing of trend, two shrapnel parts 191 are vertically arranged, and are partly fitted in respectively on corresponding gusset plate 135, and respectively with it is corresponding Crab-bolt consolidation is carried out between gusset plate 135, the Flexible change of its length direction by two shrapnel parts 191 along joist 12 is to fit Answer the deformation requirements at expansion joint 2.Usually, each retractor device 1 includes multiple elastic connection plates 19, and along perpendicular to support The length direction of beam 12 is located at middle elastic connection plate 19 elastic connection plate 19 adjacent with wherein one and is oppositely arranged (two elasticity The opening of the bow-shaped structural of connecting plate 19 is relative), it is disposed opposite to each other (two elastic connection plates 19 with another adjacent elastic connection plate 19 The opening of bow-shaped structural mutually deviate from).The opening of each elastic connection plate 19 can certainly be made towards identical, each elastic connection The distance between plate 19 all same, i.e., each elastic connection plate 19 is evenly arranged successively along the length direction perpendicular to joist 12.

Referring to Fig. 1-Fig. 3, further, also including at least two elastic displacement casees 192, each elastic displacement case 192 is distinguished In the concrete 21 for being embedded in the both sides of expansion joint 2, it is similar with the first displacement case 121 and second displacement case 122, along joist 12 Length direction, be located along the same line each elastic connection plate 19 correspondence two elastic displacement casees 192, and when have multigroup position When elastic connection plate 19 on same straight line, then elastic displacement case 192 also has multiple.

In the present embodiment, typically each elastic connection plate 19 is respectively positioned at the joist 12, i.e. the first displacement case 121 and Be correspondingly arranged on an elastic displacement case 192 near at second displacement case 122, engineering in practice, the first displacement case 121 and Two displacement casees 122 and the separable arrangement of the direction across bridge of elastic displacement case 192, i.e., elastic displacement case 19 can be laid and two first displacement casees In the middle of 121.

Further, along joist 12 length direction and pass through " elastic connection hinge " positioned at two gusset plates 135 in outside 193 are hinged with corresponding two elastic displacement casees 192, so that the elastic displacement control system being made up of elastic connection plate 19 has There is the adaptability to vertical corner, so that retractor 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 up 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 Individual beam body 3, forms expansion joint 2 between two adjacent beam bodies 3 or between beam body 3 and abutment, bridge also includes at least one Individual above-mentioned retractor device 1, two side bars 11 of each retractor device 1 are located at the both sides at the expansion joint 2 respectively, specially stretch 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 slip bearing 16 and fixed steel is also respectively adopted in two ends of each joist 12 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 correspondence expansion joint 2 by the retractor device 1 of this structure, can be row Car provides continuous traffic loading end, and with preferable water resistance, and disclosure satisfy that the multi-directional deflection requirement of expansion joint 2.

Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model Within the spirit and principle of utility model, any modifications, equivalent substitutions and improvements made etc. should be included in the utility model Protection domain within.

Claims (10)

1. it is a kind of can multi-directional deflection modular expansion device, including two side bars positioned at expansion joint both sides, two sides Beam is oppositely arranged, it is characterised in that：Also include being set in turn in what is set between two side bars and 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 it is each it is described in Liang Jun supports are installed on the joist, and described joist one end is fixing end, and the other end is movable end, and slip pressure-bearing is respectively adopted Bearing and stationary balls bearing are fixed on the both sides at the expansion joint.

2. as claimed in claim 1 can multi-directional deflection modular expansion device, it is characterised in that：The joist fixing end bag Include and be located at respectively both sides and two stationary balls bearings being oppositely arranged above and below the joist fixing end, the movable end includes position One above the joist slides compressing support and positioned at the bearing below the joist, the slip pressure Tight bearing has polytetrafluoroethylene (PTFE) slide plate with the bearing surface, and each polytetrafluoroethylene (PTFE) slide plate is slided with joist surface Contact.

3. as claimed in claim 1 can multi-directional deflection modular expansion device, it is characterised in that：Each central sill with and Its just to the side bar or another central sill between connected using waterproof adhesive tape, the waterproof adhesive tape is along the joist Length direction bend successively, and its both ends is fitted with the corresponding side bar or the correspondence central sill top board lower surface respectively Connection.

4. as claimed in claim 3 can multi-directional deflection modular expansion device, it is characterised in that：Each side bar has The first horizontal-extending slide plate of the oriented correspondence central sill, the two relative side of each central sill is respectively provided with horizontal-extending Two slide plates, are 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.

5. as claimed in claim 1 can multi-directional deflection modular expansion device, it is characterised in that：In each side bar Lower section and the lower section of each central sill are also vertically fixed gusset plate, and each gusset plate staggers with the joist to be set Put, and between the two neighboring gusset plate by can horizontal extension elastic connection plate connect.

6. as claimed in claim 5 can multi-directional deflection modular expansion device, it is characterised in that：The elastic connection plate is curved Two shrapnel parts being oppositely arranged are converted into, two shrapnel parts enclose the arch to be formed horizontally toward, and bear against in phase On adjacent two gusset plates.

7. as claimed in claim 5 can multi-directional deflection modular expansion device, it is characterised in that：The two neighboring node Have between plate and be oppositely arranged or set opposite to each other between multiple elastic connection plates, two adjacent elastic connection plates Put.

8. as claimed in claim 5 can multi-directional deflection modular expansion device, it is characterised in that：Also include being embedded in respectively At least two elastic displacement casees in the concrete of the expansion joint both sides, are located at two of outside along the length direction of the joist The gusset plate is hinged with the corresponding two elastic displacement casees respectively.

9. as claimed in claim 8 can multi-directional deflection modular expansion device, it is characterised in that：Side bar bottom institute described in two The corresponding elastic connection plate by elasticity hinge be connected with the elastic displacement case, each elastic connection plate with it is described Joist is contour.

10. a kind of bridge, including two abutments and at least one beam body, it is characterised in that：Also include at least one such as right It is required that described in any one of 1-9 can multi-directional deflection modular expansion device, it is each it is described can the modulus type of multi-directional deflection stretch Each side bar of device is installed on wherein described in one abutment or wherein described in one in beam body.