CN206127871U - Modulus formula telescoping device and bridge with elastic displacement control system - Google Patents

Abstract

The utility model provides an elastic displacement control system's modulus formula telescoping device and bridge relate to the expansion joint, a modulus formula telescoping device that has elastic displacement control system, including two boundary beams, two boundary beams set up relatively, still include roof beam in at least one, in the below of each boundary beam and in each equal vertical connection plate that is fixed with in the below of roof beam, and all connect through the elastic connection board between two adjacent connection plates, and two connection plates that are located the outside along the array orientation of connection plate all articulate has the elastic displacement case, and the elastic displacement case is all buried underground in the concrete of expansion joint both sides, still provide a bridge, including above -mentioned telescoping device. The utility model discloses an adopt the elastic connection board as elastic displacement control system in the telescoping device, its displacement wholeness and synchronism all more conventional polyurethane or elastic rubber material are excellent, and simultaneously, owing to elastic displacement control system adoption steel construction system, structural durability is good.

Description

Modular expansion device with elastic displacement control system and bridge

Technical field

This utility model is related to expansion joint, more particularly to a kind of modular expansion device with elastic displacement control system 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：To make vehicle smoothly pass bridge floor and meeting the needs that bridge deck structure deforms, in bridge floor The general name of the device arranged 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, stitch for modulus, the main disease of modular expansion device Evil shows as：

1. anchoring piece destruction；

2. middle beam snap, rupture, 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 with compress supporting disease；

5. caulking gum band it is rapid it is aging, come off or rupture, serious leak；In caulking gum band, rubbish overstocks excessive, Affect Telescopic.

And the deformed steel modular expansion device in existing market, existing longitudinal extension gap is big, flexible uneven, punching Hit the phenomenons such as power is concentrated, jump car is serious, concrete is frangible, extensible member spoilage is high, manufacturing expense is big more to project.Particularly To suspension bridge, cable-stayed bridge, and tiltedly, curved bridge, it is because unavoidably there is multidirectional displacement in bridge structure therefore tight during use The defect of inadaptable horizontal and multi-directional deflection requirement is exposed again.And vertical deformation is had high demands, 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 is to provide a kind of modular expansion device with elastic displacement control system, it is intended to For solving the problems, such as that existing retractor device is difficult to meet expansion joint multi-directional deflection requirement.

What this utility model was realized in：

This utility model embodiment provides a kind of modular expansion device with elastic displacement control system, including being located at Two side bars of expansion joint both sides, two side bars are oppositely arranged, also including being set in turn between two side bars and It is along at least one central sill that the side bar is arranged in the same direction, equal in the lower section of the lower section of each side bar and each central sill Be vertically fixed between gusset plate, and the two neighboring gusset plate by can horizontal extension elastic connection plate connection, edge The orientation of the gusset plate is located at two gusset plates in outside and is hinged with elastic displacement case, the elastic displacement case It is embedded in the concrete of the expansion joint both sides.

Further, also include across the expansion joint and the joist below the central sill, the two ends of the joist Respectively movable end and fixing end, slip bearing is respectively adopted for the two ends of the joist and stationary balls bearing is fixed on The both sides at the expansion joint.

Further, the elastic connection plate is bent into two shrapnel parts being oppositely arranged, and two shrapnel parts are enclosed Arch horizontally toward is formed, and is born against on the two neighboring gusset plate.

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

Further, the elastic connection plate corresponding to side bar bottom described in two is cut with scissors and the bullet by elastic connection Property the connection of displacement case, each elastic connection plate is contour with the joist.

Further, each central sill and and its just to the side bar or another central sill between using anti- Glue bar connects.

Further, the waterproof adhesive tape is bent successively along the length direction of the joist, and its both ends respectively with it is right The side bar or the correspondence central sill top board inner surface is answered to be 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 overlap 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.

This utility model embodiment also provides a kind of bridge, including two abutments and at least one beam body, also include to A few above-mentioned modular expansion device with elastic displacement control system, it is each described with elastic displacement control system The each described side bar of modular expansion device be installed on wherein described in one abutment or wherein in beam body described in.

This utility model has the advantages that：

In retractor device of the present utility model, side bar on the concrete of expansion joint both sides, is provided with, and between side bar At least one central sill is then installed on, and gusset plate, two neighboring gusset plate is also vertically arranged with the lower section of side bar and central sill Between using elastic connection plate connect, make left and right two gusset plate cooperative bearings, increase retractor device structural integrity, the opposing party Face is located at two gusset plates in outside and is hinged with elastic displacement case, it is ensured that the stability of central sill and gusset plate structure, Good adaptability can be respectively provided with to each central sill and gusset plate vertical corner, transverse translation corner simultaneously.

Description of the drawings

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment Or accompanying drawing to be used is briefly described needed for description of the prior art, 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, in the premise for not paying creative work Under, can be with according to these other accompanying drawings of accompanying drawings acquisition.

The structure of the modular expansion device with elastic displacement control system that Fig. 1 is provided for this utility model embodiment Schematic diagram；

Fig. 2 is that the structure that the modular expansion device with elastic displacement control system of Fig. 1 is installed on expansion joint is shown It is intended to；

Lateral node plate and elastic displacement of the Fig. 3 for the modular expansion device with elastic displacement control system of Fig. 1 The attachment structure schematic diagram of case；

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

Joist fixing end stationary balls of the Fig. 5 for the modular expansion device with elastic displacement control system of Fig. 1 The structural representation of seat；

Bearings of the Fig. 6 for the modular expansion device gallows frame position with elastic displacement control system of Fig. 1 With the mounting structure schematic diagram of compressing support.

Specific embodiment

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

Referring to Fig. 1 and Fig. 2, this utility model embodiment provides a kind of modulus type with elastic displacement control system and stretches Compression apparatus 1, including two side bars 11, side bar 11, at the concrete 21 of 2 both sides of expansion joint, between two side bars 11 is vertically Be oppositely arranged, retractor device 1 also includes joist 12 and at least one central sill 13, each central sill 13 may be contained within two side bars 11 it Between, and along the length direction interval setting successively of joist 12, each central sill 13 with and its just to side bar 11 or it is another in Connected using waterproof adhesive tape 14 between beam 13, joist 12 across described expansion joint 2 and be located at two side bars 11 and it is each in The underface of beam 13, forms the vertical supporting to above-mentioned each beam, two ends along its length of joist 12 by joist 12 Slip bearing 16 is respectively adopted and stationary balls bearing 15 is installed on the concrete 21 of 2 both sides of expansion joint.This enforcement In example, connected using the sealing of waterproof adhesive tape 14 between adjacent side bar 11 and central sill 13 and between adjacent two central sills 13 Connect, while the telescopic variation at expansion joint 2 is adapted to, meet the waterproof requirement at expansion joint.Meanwhile, the wherein one end of joist 12 Installed on concrete 21 using stationary balls bearing 15, the other end is installed in opposite side concrete by slip bearing 16 On 21, when 2 telescopic variation of expansion joint, joist 12 can be relatively fixed steel ball bearing 15 and slip bearing 16 is moved, with This telescopic variation at expansion joint 2 is adapted to, and be can adapt to during automotive wheel is travelled to the multidirectional of the generation of retractor device 1 Displacement.

Referring to Fig. 2-Fig. 4, optimize above-described embodiment, each waterproof adhesive tape 14 is bent successively along the length direction of joist 12, And 133 lower edge inner surface of the top board laminating respectively with corresponding side bar 11 or correspondence central sill 13 of its both ends.In the present embodiment, will Waterproof adhesive tape 14 is bent so as to profile of at least part of structure in wavy multiple bending, its length along joist 12 Degree direction has preferably elasticity, is adapted to the deformation requirements at expansion joint 2；Meanwhile, waterproof adhesive tape 14 folds knot using this Structure profile so as to which the main telescopic variation for comparing traditional adhesive tape is horizontal by vertically switching to；Between adhesive tape and side bar 11, central sill 13 The relatively conventional flying bird formula waterproof adhesive tape in gap be greatly decreased, reduce rubbish etc. accumulation, simultaneously because fold after waterproof adhesive tape 14 wavy multiple bending structure profile, after stone or silting are to waterproof adhesive tape 14, when 1 entirety of retractor device During contraction, by 14 telescopic variation of waterproof adhesive tape, stone or silt on waterproof adhesive tape 14 can will be accumulated in by two side bars Extrude between 11, take out of with wheel, so as to reach the purpose of slagging-off.

Continue optimization 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, per one second slide plate 131 and corresponding first Partly overlap 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 Overlap between plate 131, form overlap joint.When expansion joint 2 deforms, corresponding first slide plate 111 and second is gone up in the horizontal direction and is slided 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 is separated by, but spacing is non- It is often little, 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 counteracting force for corresponding waterproof adhesive tape 14 with the second slide plate 131, can So that rubble is after the rolling of wheel, the gap with wheel between side bar 11 and central sill 13 is taken out of, and then it is existing to reduce card stone The generation of elephant.Traditional flying bird formula waterproof adhesive tape is as lower section is without supporting, it is impossible to provide bearing reaction, 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 occurrence of reduce these, the service life of adhesive tape greatly improved.

Referring to Fig. 4, further optimize the structure of side bar 11 and central sill 13, be also provided with below side bar 11 and central sill 13 L-type plate 141, each L-type plate 141 and the U-type groove 142 that opening upwards are formed between corresponding side bar 11 or central sill 13, prevent Two ends of glue bar 14 are clamped in corresponding two U-type grooves 142 respectively.Opened by arranging on side bar 11 with central sill 13 Mouth U-type groove 142 upwards, on the premise of waterproof sealing is ensured, can simplify waterproof adhesive tape 14 and corresponding side bar 11 and right Answer the installation between 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 2 both sides of expansion joint, and the first displacement case 121 is stretched in 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 aforementioned in the first displacement case 121 and second displacement case 122 rotate or slide in both, with Adapt to the displacement request of retractor device.

Further, two side bars 11 can also be supported respectively and be 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 is by the upper lower support plate of stationary balls bearing 15 and displacement case, joist beam 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 Which is steel ball bearing, and which does not have problem of aging, long service life, with 2 agent structure of the expansion joint same longevity relative to plastic cement bearing Life.

Further, joist 12 is movable end near one end of bearing 16, and the structure positioned at part on joist is cunning Dynamic compressing support 17, and the structure for being located at part under joist is slip bearing 16, slip bearing 16 is positioned at second Move at the opening of case 122, joist 12 is supported on slip bearing 16, it is flexible with expansion joint 2, on slip bearing 16 Slide.Meanwhile, it is slip compressing support 17 above 12 movable end of joist, which is installed between second displacement case 122 and joist 12, Can play a part of to compress 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 base plate 132, and web 131 is vertical Arrange, 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 by gallows frame 18 with joist 12, between central sill 13 and joist 12 i.e. For slip bearing 16, is then slip compressing support 17 below joist 12.Referring to Fig. 2 and Fig. 6, refinement slip is held The structure of pressure bearing 16,16 surface of slip bearing is trough body structure profile, and cell body top layer has politef slide plate 161, there is politef slide plate 161 to be fitted with 12 upper surface of joist on cell body top layer, and 12 upper surface of joist completely spreads 2～3mm mirrors The corrosion resistant plate in face, slip bearing 16 can be slidably connected along the length direction of joist 12, and slip bearing 16 is by pre- Reinforcing and its clamping of joist 12 so that both are connected as an entirety, accordingly, slip compressing support 17 also has politef Slide plate 171, which is slidably connected with the lower surface of joist 12.A limited block 134 is welded with the lower surface of base plate 132, slip is held Pressure bearing 16 is fixed on below base plate 132 by limited block 134, and each slip compressing support 17 passes through another limited block 134 It is fixed on force transmission beam 182.It is connected by some pull bars 183 between force transmission beam 182 and corresponding base plate 132, it is each to draw Bar 183 is vertically arranged.An entirety is connected as by pull bar 183 between force transmission beam 182 and corresponding central sill 13, and then is passed through Force transmission beam 182 realizes the sliding connection structure of central sill 13 and slip compressing support 17, and the upper end of each pull bar 183 with it is corresponding in 132 ground floor of the base plate welding of beam 13, meanwhile, the upper end of each pull bar 183 separately has annular steel pile casting 181, annular steel pile casting 181 Second layer welding is carried out with the base plate 132 of corresponding central sill 13, and 183 lower end of each pull bar is then through correspondence force transmission beam 182 and two Locked by nut 184 between person, simple structure, stability are higher.Each force transmission beam 182 is to there is 2 pull bars 183, square anchor ear is formed, joist 12 is passed through by the middle of which, so that joist 12 is connected as an entirety with each central sill 13.And Due to pull bar 183 lower end and force transmission beam 182 between locked by nut 184, to this by rotate nut 184 can play tune The effect of pretightning force between section force transmission beam 182 and corresponding slip compressing support 17.

Optimization above-described embodiment, the movable end of the correspondence joist 12 of second displacement case 122, 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, is settled, wind-force in practical engineering application, due to temperature as movable end, and various loads such as wheel load affect, joist 12 ends may have multi-directional deflection in second displacement case 122, 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 which, so as to joist 12 with 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, anchor blind rivet 123 horizontally extend in the concrete 21 of respective side, to improve corresponding first displacement case 121 or second displacement case 122 mixed Anchoring in solidifying soil 21.

Fig. 2 and Fig. 3 is referred again to, and 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 way of welding.

Optimization above-described embodiment, is also embedded with gantry type embedded bar in the concrete 21 of 2 both sides of expansion joint respectively 113, the gantry type reinforcing bar 113 extends to the lower section of the anchor tie plate 112 of respective side, and which is and the anchor tie plate 112 of respective side between Welding.Specially 113 quadra structure of gantry type reinforcing bar is pre-buried when expansion joint both sides beam body (or abutment) are constructed, and stretches Seam installation is that two-sided welding is carried out between anchor tie plate 112 and gantry type reinforcing bar 113, 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. 113 relative anchor tie plate 112 of gantry type reinforcing bar is vertically extending, and steel hoop is then water relative to anchor tie plate 112 It is flat to extend, gantry type reinforcing bar 113 of the steel hoop with respective side is welded, so as to by the steel hoop of the same side, gantry type steel Muscle 113 and anchor tie plate 112 are connected as an entirety, further increase anchoring when 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 which is located at same straight line with the web 131 of side bar 11 when gusset plate 135 and side bar 11 pairs are corresponding On, and be then located along the same line with the web 131 of central sill 13 when corresponding with central sill 13 pairs, each gusset plate 135 is along joist 12 Length direction interval setting successively, direction across bridge are staggered with joist 12, in addition by can between two adjacent gusset plates 135 The elastic connection plate 19 of horizontal extension connects.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 be stretched 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 135 crab-bolt of corresponding two gusset plates respectively Knot.19 stress of elastic connection plate can be conducive to using crab-bolt consolidation, fatigue rupture is prevented.As 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 is by " elastic connection hinge " 193 and displacement case Connection, so that the displacement control system being made up of elastic connection plate 19 is with the adaptability to vertical corner, so that flexible Device is with the adaptability to multidirectional displacement.Referring to Fig. 1 and Fig. 3, the structure of elastic connection plate 19 is refined, which is by flat plate buckling Two shrapnel parts 191 being oppositely arranged of formation, 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 is bow-shaped structural, and arched opening is towards the length at expansion joint 2 Bearing of trend, two shrapnel parts 191 are vertically arranged, and partly fit on corresponding gusset plate 135 respectively, and respectively with it is corresponding Crab-bolt consolidation is carried out between gusset plate 135, which passes through Flexible change of two shrapnel parts 191 along the length direction of joist 12 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 and is oppositely arranged that (two is elastic The arched opening of connecting plate 19 is relative), (two elastic connection plates 19 are disposed opposite to each other with another adjacent elastic connection plate 19 Arched opening 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 are 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 It is embedded in the concrete 21 of 2 both sides of expansion joint, which is similar with the first displacement case 121 and second displacement case 122, along joist 12 Length direction, two elastic displacement casees 192 of correspondence of each elastic connection plate 19 being located along the same line, and when with multigroup position During elastic connection plate 19 on the 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 can be laid and two first displacement casees with the separable arrangement of 192 direction across bridge of elastic displacement case, i.e. elastic displacement case 19 In the middle of 121.

Further, along joist 12 length direction and two gusset plates 135 positioned at outside pass through " elastic connection hinge " 193 are hinged with corresponding two elastic displacement casees 192, so that being had by the elastic displacement control system that elastic connection plate 19 is constituted There is the adaptability to vertical corner, so that retractor device is with the adaptability to multidirectional displacement.

Optimization 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.

Fig. 1 and Fig. 2 is referred again to, 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 specially stretch respectively positioned at the both sides at the expansion joint 2 Two side bars 11 of device 1 be respectively arranged in adjacent two beam body 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 slip bearing 16 and fixed steel Tumbler bearing 15 is fixed in adjacent two beam body 3 or is respectively arranged in a wherein abutment and the beam body adjacent with the abutment On 3.Retractor device 1 of the present embodiment by this structure, can not only meet the deformation requirements at correspondence expansion joint 2, can be row Car provides continuous traffic loading end, and has preferable water resistance, and disclosure satisfy that 2 multi-directional deflection requirement of expansion joint.

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

Claims (9)

1. a kind of modular expansion device with elastic displacement control system, including two side bars positioned at expansion joint both sides, Two side bars are oppositely arranged, it is characterised in that：Also include being set in turn between two side bars and along the side bar At least one central sill for arranging in the same direction, is vertically fixed in the lower section of the lower section of each side bar and each central sill Between gusset plate, and the two neighboring gusset plate by can horizontal extension elastic connection plate connection, along the gusset plate Orientation be located at two gusset plates in outside and be hinged with elastic displacement case, described in the elastic displacement case is embedded in In the concrete of expansion joint both sides.

2. there is the modular expansion device of elastic displacement control system as claimed in claim 1, it is characterised in that：Also include Joist across the expansion joint and below the central sill, the two ends of the joist are respectively movable end and fixing end, institute The two ends for stating joist are respectively adopted slip bearing and stationary balls bearing is fixed on the both sides at the expansion joint.

3. there is the modular expansion device of elastic displacement control system as claimed in claim 2, it is characterised in that：The bullet Property connecting plate be bent into two shrapnel parts being oppositely arranged, two shrapnel parts enclose the arch to be formed horizontally toward, and point It is not installed on the two neighboring gusset plate.

4. there is the modular expansion device of elastic displacement control system as claimed in claim 3, it is characterised in that：Adjacent two Between the individual gusset plate have multiple elastic connection plates, be oppositely arranged between two adjacent elastic connection plates or Person is disposed opposite to each other.

5. there is the modular expansion device of elastic displacement control system as claimed in claim 4, it is characterised in that：Described in two The elastic connection plate corresponding to side bar bottom is connected with the elastic displacement case by elastic connection hinge, each elasticity Connecting plate is contour with the joist.

6. there is the modular expansion device of elastic displacement control system as claimed in claim 2, it is characterised in that：Each institute State central sill and and its just to the side bar or another central sill between using waterproof adhesive tape connect.

7. there is the modular expansion device of elastic displacement control system as claimed in claim 6, it is characterised in that：It is described anti- Glue bar is bent successively along the length direction of the joist, and its both ends respectively with the corresponding side bar or correspondence it is described in Back plate lower edge inner surface is fitted and connected.

8. there is the modular expansion device of elastic displacement control system as claimed in claim 6, it is characterised in that：Each institute State side bar to be respectively provided with to the first horizontal-extending slide plate of the correspondence central sill, the two relative side of each central sill is according to water Flat the second slide plate for extending, each second slide plate and corresponding first slide plate or corresponding second slide plate it Between partly overlap, and each first slide plate is respectively positioned on the underface of the corresponding waterproof adhesive tape with each second slide plate.

9. a kind of bridge, including two abutments and at least one beam body, it is characterised in that：Will also including at least one such as right The modular expansion device with elastic displacement control system described in any one of 1-8 is sought, it is each described with elastic displacement control The each described side bar of the modular expansion device of system processed is installed on wherein described in one abutment or wherein in beam body described in.