CN205775825U - There is the retractor device of lower support platform - Google Patents

Abstract

This utility model relates to building retractor device, a kind of retractor device with lower support platform is provided, including two side bars being positioned at both sides, expansion joint, two described side bars are oppositely arranged, also include the waterproof adhesive tape being located between two described side bars, it is provided with in the underface of described waterproof adhesive tape and two described side bars, two slide plates one to one, each described slide plate is horizontal-extending to side bar another described by corresponding described side bar, and two described slide plates are superimposed with each other away from the end of corresponding described side bar.In retractor device of the present utility model, two slide plate in the vertical directions provide vertical support for waterproof adhesive tape, it can be avoided that after rubble enters clearance of expansion rail, wheel is through out-of-date rolled broken stone, rubble extrudes waterproof adhesive tape again, causes waterproof adhesive tape to come off from side bar, it is also possible to produce vertical reaction force by slide plate, making wheel through later, rubble is taken out of by wheel.

Description

There is the retractor device of lower support platform

Technical field

This utility model relates to bridge and other building retractor devices, particularly relates to a kind of have the flexible of lower support platform Device.

Background technology

Retractor device is the key position in bridge member, plays an important role in realizing bridge function.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: for making vehicle smoothly pass bridge floor and meet the needs of bridge deck structure deformation, at 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..Modulus type is stretched again by " Expansion Units for Highway Bridges " (JT/T 327-2004) Be equal in device, formal classification less than 80mm is " profile iron list seam ".

Single seam type steel expansion device is most popular a kind of retractor device on current highway bridge, accounts for whole bridge The 80% of beam retractor device consumption.The shaped steel that single seam bridge extension joint uses domestic hot-roll forming is main member, build-in Waterproof sealing waterproof adhesive tape is extrusome, and is equipped with anchor system.

By mounting groove wire feeding, conventional single seam type steel expansion device mainly has the most several:

1, be rigidly connected (Concrete Filled) single seam type steel expansion device

Single seam type steel expansion device that is rigidly connected mainly has c-type, F type, the common shaped steel type of 3 kinds of E type.

2, (resin or binding material are filled) single seam type steel expansion device is flexibly connected

When the anchorage zone of single seam type steel expansion device is due to the arrowhead deficiency of the reason such as structure, construction, as made With being rigidly connected, owing to fill concrete is the weakest, tend not to reach intended anchoring strength, be susceptible to the most broken Bad, the most preferably use the mode flexibly connected that retractor device is anchored, common have BEJ resin adhesive type type Steel retractor device and Betoflex flexibly connect formula type steel expansion device.

By the mounting groove degree of depth, can be divided into standard buried depth and shallow overburden two kinds, relevant to single seam anchoring system, the former uses anchor The list seam of the rigidity anchoring of plate and big annular dowel, its mounting groove degree of depth, 25～30cm, is embedded in girder, the many employings of the latter The list seam of the elastic anchoring such as peg, its fitting depth, at 15cm～16cm, is embedded in during bridge mats formation.

Single seam type steel expansion device uses the widest, and its force modes is relatively easy.To single seam type steel expansion device Speech, common damage-form has the most several:

1. anchorage zone concrete destruction

2. caulking gum band is the most aging, come off or rupture, and in fluid sealant, sanitary fill is too much, affects Telescopic.

And cause and seal rubber waterproof size bar and leak and the main cause destroyed is: seal shape and the central sill of rubber waterproof size bar Do not mate with the degree of lip-rounding of side bar steel；Due to the stone on road surface, the impurity such as silt enters and is deposited on sealing rubber waterproof size bar seam In gap, rigidity large particulate matter is difficult to be extruded, and presses under wheel, and owing to rubber waterproof size bar is without support, and waterproof adhesive tape is thick Spending limited, therefore, at stone, the impurity such as silt is by under the extruding of wheel, and rubber waterproof size bar is easily punctured, or extruding force mistake Greatly, so that waterproof adhesive tape two ends bayonet socket is easily extruded and shakes off, thus cause and leak under rainwater, dust, foreign material.

Utility model content

The purpose of this utility model is to provide a kind of retractor device with lower support platform, it is intended to be used for solving existing The rubber waterproof size bar of retractor device easily pile up stone silt etc., in turn result in waterproof adhesive tape and extrude the problem come off.

This utility model is achieved in that

This utility model embodiment provides a kind of retractor device with lower support platform, including being positioned at both sides, expansion joint Two side bars, two described side bars are oppositely arranged, and also include being located between two described side bars and across described expansion joint Waterproof adhesive tape, be provided with in the underface of described waterproof adhesive tape and two described side bars, two slide plates one to one, each Described slide plate is horizontal-extending to side bar another described by corresponding described side bar, and two described slide plates are away from corresponding described limit The end of beam is superimposed with each other.

Further, the opposite face of side bar described in two is also provided with L-type plate, each described L-type plate and corresponding side bar Enclose the U-type groove chamber forming opening upwards, after two end bendings of described waterproof adhesive tape, be clamped in two described U-type groove respectively Intracavity.

Further, each described side bar also has the top board extended to side bar another described, and described top board is positioned at described U The surface of type vallecular cavity, the end sections of described waterproof adhesive tape is posted by the lower surface of corresponding described top board.

Further, every one end of described waterproof adhesive tape is fixed on described U by reinforcing bar snap close by spacing for waterproof adhesive tape In type vallecular cavity.

Specifically, described waterproof adhesive tape has waveform repeatedly bending structure, and described waterproof adhesive tape is partly installed in institute State below top board.

Further, also include can at least one elastic connection plate of horizontal extension, each described elastic connection plate is along parallel Length direction in described expansion joint is spaced setting successively, and each described elastic connection plate is across described expansion joint and supports two institutes State slide plate.

Further, described elastic connection plate has multiple, and described elastic connection plate has multiple, adjacent two described bullets In the same direction or level is oppositely arranged for property connecting plate level, and bears against on two described side bars.

This utility model has the advantages that

Retractor device of the present utility model, waterproof adhesive tape is across expansion joint, and its both ends are then individually fixed in and are oppositely arranged Two side bars on, by two slide plate vertical support waterproof adhesive tapes, be superimposed with each other between two slide plates, and only with wherein Beam connects, and slide plate foldable is slided, thus adapts to expansion joint dilatation.Enter two side bars at large particulate matters such as rubbles to enclose The gap closed, wheel rolled broken stone, so that waterproof adhesive tape is extruded by rubble, owing to supporting platform can be two overlapping slide plates Thering is provided bearing reaction, rubble etc., after wheel rolling, can be ejected or take out of, reduces laying dust, JISHI, simultaneously it can be avoided that waterproof Adhesive tape because of bigger grinding pressure effect by the problem come off on side bar.

Accompanying drawing explanation

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 the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is only It is embodiments more of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work Under, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.

The structure that under the having that Fig. 1 provides for this utility model embodiment, the retractor device of support platform is installed in beam body Schematic diagram；

Fig. 2 be the bridge of Fig. 1 having under the structural representation of retractor device of support platform；

Fig. 3 be the bridge of Fig. 1 having under the elastic connection plate of retractor device of support platform vertical view when arranging in the same direction Figure；

Fig. 4 be the bridge of Fig. 1 having under the elastic connection plate of retractor device of support platform is adjacent when arranging dorsad Top view.

Detailed description of the invention

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 a part of embodiment of this utility model rather than whole Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise The all other embodiments obtained, broadly fall into the scope of this utility model protection.

Seeing Fig. 1, this utility model embodiment provides a kind of retractor device 1 with lower support platform, including two limits Beam 11, side bar 11 is vertically built in the concrete of both sides, expansion joint 2, for being oppositely arranged between two side bars 11, two side bars Being folded with waterproof adhesive tape 12 between 11, waterproof adhesive tape 12 is across expansion joint 2, and each side bar 11 is respectively provided with and extends to another side bar 11 Slide plate 14, use the mode of welding to connect between the two fixing, two slide plates 14 are at the end tool away from corresponding side bar 11 Having part-structure to overlap, and two slide plates 14 are respectively positioned on the underface of waterproof adhesive tape 12, certain each slide plate 14 is only with wherein one Side bar 11 connects.This utility model provide retractor device 1 can be applicable in bridge expanssion joint 2, the most adjacent beam body 3 or Form expansion joint 2 between person's abutment, at expansion joint 2, pour steel fiber reinforced concrete 31 in beam body 3 or abutment, and at it Its place is then equipped with asphalt concrete pavement, is installed on steel fiber reinforced concrete 31 by side bar 11, and its side is steel fibre Concrete 31, opposite side is then expansion joint 2 and towards another side bar 11, and waterproof adhesive tape 12 is made for water proof rubber, its both ends The surface being oppositely arranged with two side bars 11 respectively is fitted and connected, and owing to waterproof adhesive tape 12 is positioned at the top at expansion joint 2, thus is formed Closure to expansion joint 2, rainwater, dust or other foreign material are all difficult to by the 2 times leakages in expansion joint, phase between two slide plates 14 Mutually overlapping, forms overlap joint, to this when expansion joint 2 deforms, go up in the horizontal direction can be formed between two slide plates 14 the most sliding Dynamic, i.e. both do not interfere with the dilatation at expansion joint 2, and on the other hand, two slide plates 14 are positioned at the lower section of waterproof adhesive tape 12, anti- Glue bar 12 can contact with both, or is separated by, but spacing is the least, can be to waterproof adhesive tape 12 by two slide plates 14 Form vertical supporting role.When waterproof adhesive tape 12 is extruded by rubble, two slide plates 14 can be that waterproof adhesive tape 12 provides anti- Active force so that rubble after the rolling of wheel by two side bars 11 between extrude, and then reduce the generation of card stone phenomenon, Simultaneously it can be avoided that waterproof adhesive tape 12 because of bigger grinding pressure effect by the problem come off on side bar 11.Exist for reducing side bar 11 Concentration power during vehicular impact, reduces the destruction to installing zone concrete when side bar 11 impacts, at the bottom of each side bar 11 Also each having horizontally disposed base plate 13, base plate 13 crab-bolt is consolidated on the steel fiber reinforced concrete 31 of respective side.Base plate 13 and limit Can weld between beam 11, it is also possible to be formed in one and make, side bar 11 and steel fiber reinforced concrete can be increased by base plate 13 Connection area between 31, thus reduce the local failure that installing zone concrete causes because of vehicular impact.

See Fig. 2, optimize the structure of side bar 11 further, the opposite face between two side bars 11 is also provided with L-type plate 151, form the U-type groove chamber 15 of opening upwards, two of above-mentioned waterproof adhesive tape 12 between each L-type plate 151 with corresponding side bar 11 End is by being clamped in respectively in two U-type groove chambeies 15 after bending.For its relative side bar 11 of U-type groove chamber 15 side height relatively Little, the two ends of waterproof adhesive tape 12 have only to, in the U-type groove chamber 15 that the bending carried out somewhat can stretch into correspondence, use opening simultaneously U-type groove chamber 15 upwards, can strengthen the sealing property of attachment structure between waterproof adhesive tape 12 and side bar 11, i.e. rainwater is difficult to Penetrated in expansion joint 2 by between waterproof adhesive tape 12 and side bar 11.

Continuing to optimize above-described embodiment, each side bar 11 also has the top board 111 extended to another side bar 11, each top board 111 surfaces being positioned at corresponding U-type groove chamber 15, when being in clamping connection in U-type groove chamber 15 is stretched in the end of waterproof adhesive tape 12, anti- The end of glue bar 12 has the lower surface laminating of part-structure and the top board 111 of respective side, should have between certain two top boards 111 There is certain distance, to provide the expansion joint deformation displacement of necessity.In the present embodiment, top board 111 is positioned at corresponding U-type groove chamber The surface of 15, can avoid this rainwater to be directly entered in U-type groove chamber 15, and reduce two side bars to a certain extent Distance between 11, can reduce stone and silt and enter the probability between two side bars 11, and on the other hand, marine glue Bar 12 also has the lower surface laminating of part-structure and top board 111, such that it is able to avoid rainwater through waterproof adhesive tape 12 and top board 111 Between enter in expansion joint 2, improve the water resistance of retractor device 1 further.

Refer again to Fig. 1 and Fig. 2, further, between every one end and corresponding top board 111 of waterproof adhesive tape 12 Also it is arranged with reinforcing bar snap close 121.The end of waterproof adhesive tape 12 has part-structure and fits with top board 111, specially waterproof adhesive tape 12 fit near the part-structure of side bar 11 with top board 111, and at top board 111 away from end and the waterproof adhesive tape 12 of side bar 11 Between do not contact, i.e. along near the direction of side bar 11, between top board 111 and waterproof adhesive tape 12, form the jaws that bore is tapered, on The reinforcing bar snap close 121 stated is clamped in this jaws, and it can play the effect of clamping waterproof adhesive tape 12 so that waterproof adhesive tape 12 End will not be easily by abjection in U-type groove chamber 15.Usually, each top board 111 is respectively positioned on the top of the side bar 11 of correspondence, on it Surface is plane, in it is generally aligned in the same plane with the asphalt concrete pavement in beam body 3 or abutment, can provide continuously for driving Traffic loading end.Lower surface for top board 111 is then that it can be square along the acclivitous inclined-plane, direction away from side bar 11 Just will be located in the stone between waterproof adhesive tape 12 and top board 111 or silt is extruded between two side bars 11.For said structure shape Formula, has certain distance between two top boards 111, forms gap the most between the two, by waterproof adhesive tape 12 to should the position of breach The place of putting repeatedly bends, and the part undulate structure after folding, and the summit of waterproof adhesive tape 12 is less than two top boards 111 times Edge.Waveform repeatedly bending structure profile so that waterproof adhesive tape 12 has preferable elasticity along the direction across expansion joint, So that the main telescopic variation that waterproof adhesive tape 12 compares traditional waterproof adhesive tape is horizontal by vertically transferring to, this horizontal stretching Contracting change does not interferes with its stability connected, i.e. waterproof adhesive tape 12 will not be come off by between two side bars 11 easily, simultaneously by The waveform repeatedly bending structure profile of waterproof adhesive tape 12 after folding, it has the projection of horizontal plane, when stone or silt After being accumulated on waterproof adhesive tape 12, when retractor device shrinks, by the counteracting force of two slide plates 14 generations and tie in projection The effect of structure is lower can be extruded stone thereon or silt by the gap between both sides back plate 111, takes out of with wheel rolling, Thus reach the purpose of slagging-off.

Seeing Fig. 1-Fig. 4, further, retractor device 1 also includes at least one elastic connection plate 16, each elastic connection Plate 16 all can stretch in the horizontal direction, and is spaced setting successively along each elastic connection plate of length direction 16 being parallel to expansion joint 2, Each elastic connection plate 16 is across expansion joint 2 and supports above-mentioned two slide plate 14.In the present embodiment, in the lower section of two slide plates 14 It is provided with at least one elastic connection plate 16, two slide plates 14 above it can be pointed to by elastic connection plate 16 and prevent Glue bar 12 plays supporting role, two ends of each elastic connection plate 16 lay respectively at expansion joint 2 both sides and respectively with Crab-bolt consolidation between corresponding side bar 11, and use crab-bolt consolidation can be conducive to elastic connection plate 16 stress, prevent tired broken Bad.Owing to elastic connection plate 16 can stretch in the horizontal direction, it is possible to meet the deformation requirements at expansion joint 2, and it connects two Individual side bar 11, can function similarly to the effect of " elastic connecting hinge ", make the right and left beam 11 cooperative bearing, increase retractor device 1 structural integrity.

Seeing Fig. 1, Fig. 3 and Fig. 4, the structure of refinement elastic connection plate 16, it is formed by flat plate buckling and is oppositely arranged Two shrapnel part 161, two shell fragments enclose the V-type formed horizontally toward, and bear against on two side bars 11.Elastic connection Plate 16 is V-structure, and the opening of V-structure the most vertically sets towards the length bearing of trend at expansion joint 2, two shrapnel part 161 Putting, part fits on the side bar 11 of correspondence respectively, and carries out crab-bolt consolidation with between corresponding side bar 11 respectively, and it passes through two Shrapnel part 161 along the elasticity across direction, expansion joint 2 to adapt to the deformation requirements at expansion joint 2.Usually, each retractor device 1 All include multiple elastic connection plate 16, two adjacent elastic connection plates 16 can level in the same direction or level of relative is oppositely arranged, And bear against on two described side bars 11, elastic connection plate 16 and side bar 11 can anchor bolts or weld, and each elastic even Fishplate bar 16 interval is arranged.

Refer again to Fig. 1 and Fig. 2, further, be also respectively mounted in the steel fiber reinforced concrete 31 of both sides, expansion joint 2 There are anchor tie plate 17, two side bars 11 to be respectively positioned between two anchor tie plate 17, and each side bar 11 is both secured to the anchor tie plate 17 of correspondence On.Anchor tie plate 17 is embedded in the steel fiber reinforced concrete 31 of respective side, and corresponding side bar 11 can be by the way of welding Formed fixing, and anchor tie plate 17 also has part-structure and is positioned on the base plate 13 of respective side, also for welding between its with base plate 13, Such that it is able to strengthen the stability of side bar 11 structure.Optimize above-described embodiment, in the steel fiber reinforced concrete 31 of both sides, expansion joint 2 Being embedded with gantry type reinforcing bar 18 the most respectively, this gantry type reinforcing bar 18 extends to the lower section of the anchor tie plate 17 of respective side, and it is with right Answer and weld between the anchor tie plate 17 of side.Being specially gantry type reinforcing bar 18 is quadra structure, and its structure being positioned at lower section is broken Opening, gantry type reinforcing bar 18 part is positioned at steel fiber reinforced concrete 31, also has part and is positioned at beam body 3 or abutment, to this When installing gantry type reinforcing bar 18, part should be carried out in time preparing beam body 3 or abutment pre-buried, so that after An Zhuaning Gantry type reinforcing bar 18 has between stronger stability, and anchor tie plate 17 and gantry type reinforcing bar 18 and carries out two-sided welding, anchor tie plate 17 and the stability of side bar 11 can be further improved.Usually, in steel fiber reinforced concrete 31, ring also it is embedded with Shape reinforcing bar 19, steel hoop 19 is horizontal-extending by the outside of the anchor tie plate 17 of respective side, i.e. the relative anchor tie plate of gantry type reinforcing bar 18 17 is vertically extending, and steel hoop 19 is then horizontal-extending relative to anchor tie plate 17, by the door frame of steel hoop 19 with respective side Formula reinforcing bar 18 welds, thus the steel hoop 19 of the same side, gantry type reinforcing bar 18 and anchor tie plate 17 are connected as an entirety.

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

Claims (7)

1. there is a retractor device for lower support platform, including being positioned at two side bars of both sides, expansion joint, two described side bars It is oppositely arranged, it is characterised in that: also include being located in the waterproof adhesive tape between two described side bars and across described expansion joint, in The underface of described waterproof adhesive tape is provided with and two described side bars, two slide plates one to one, and each described slide plate is by right The described side bar answered is horizontal-extending to side bar another described, and two described slide plates are mutual away from the end of corresponding described side bar Overlapping.

There is the retractor device of lower support platform the most as claimed in claim 1, it is characterised in that: the opposite face of side bar described in two On be also provided with L-type plate, each described L-type plate enclose with corresponding side bar formed opening upwards U-type groove chamber, described marine glue Two described U-type groove intracavity it are clamped in respectively after two end bendings of bar.

There is the retractor device of lower support platform the most as claimed in claim 2, it is characterised in that: each described side bar also has The top board extended to side bar another described, described top board is positioned at the surface in described U-type groove chamber, the end portion of described waterproof adhesive tape Divide the lower surface being posted by corresponding described top board.

There is the retractor device of lower support platform the most as claimed in claim 3, it is characterised in that: described waterproof adhesive tape each End is fixed on described U-type groove intracavity by reinforcing bar snap close by spacing for waterproof adhesive tape.

There is the retractor device of lower support platform the most as claimed in claim 4, it is characterised in that: described waterproof adhesive tape has ripple Shape wave repeatedly bending structure, and described waterproof adhesive tape is partly installed in below described top board.

There is the retractor device of lower support platform the most as claimed in claim 1, it is characterised in that: also including can horizontal extension At least one elastic connection plate, each described elastic connection plate is spaced setting successively along the length direction being parallel to described expansion joint, Each described elastic connection plate is across described expansion joint and supports slide plate described in two.

There is the retractor device of lower support platform the most as claimed in claim 6, it is characterised in that: described elastic connection plate has Multiple, in the same direction or level is oppositely arranged for adjacent two described elastic connection plate levels, and bears against on two described side bars.