CN207314134U - Shallow embedding formula Multidirectional displacement bridge expansion device - Google Patents
Shallow embedding formula Multidirectional displacement bridge expansion device Download PDFInfo
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- CN207314134U CN207314134U CN201721268368.1U CN201721268368U CN207314134U CN 207314134 U CN207314134 U CN 207314134U CN 201721268368 U CN201721268368 U CN 201721268368U CN 207314134 U CN207314134 U CN 207314134U
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- expansion device
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Abstract
The utility model discloses a kind of shallow embedding formula Multidirectional displacement bridge expansion device, including fishback, water repellent component and slide plate, fishback is connected by anchoring mechanism with girder construction；Anchoring mechanism includes anchoring backing plate and anchor bolt, anchoring backing plate is fixedly linked with girder construction, one end of anchor bolt is fixed between anchoring backing plate and girder construction, and the other end of anchor bolt reaches the outside of fishback by the bolt hole on fishback from the inner side of fishback and fastened by fastener；It can obtain firm anchoring in the case where beam-ends preformed groove can not realize deeper extension, and realize the stable transition of strength by the strong structure of high intensity accelerated cement or epoxy resin mortar, and take into account and realize multi-directional deflection function.
Description
Technical field
It the utility model is related to expansion gap device, more particularly to a kind of shallow embedding formula Multidirectional displacement bridge expansion device.
Background technology
Beam slab designed by existing in the market is increased using the situation proportion of steel box-girder, and preformed groove is very on the bridge plate of steel box-girder
Shallow, the thickness of only one pave-load layer, is about 100mm or so.General broach expansion joint installation environment is more loose, pre-
In terms of staying groove, depth needed for preformed groove is larger, does not have in more than 170mm, this depth for the operation of normal concrete beam slab about
It is problematic, but 100mm pave-load layers and beams of concrete are only left because structure problem preformed groove can be only sustained at for steel box-girder top surface
During the circumstances of 100~120mm, ordinary telescopic seam can not reach good anchoring effect.
How when beam-ends preformed groove can not realize deeper extension, using more preferable mounting means, reach firm
Anchoring, the stable transition of strength and take into account the effect for realizing multi-directional deflection function, be that those skilled in the art are anxious to be resolved
Technical problem.
Utility model content
The purpose of the utility model is to overcome the defects of the prior art, there is provided a kind of shallow embedding formula multi-directional deflection bridge stretches
Device.
To achieve the above object, the utility model employs following technical solution：
A kind of shallow embedding formula Multidirectional displacement bridge expansion device, including fishback, water repellent component and slide plate, fishback pass through
Anchoring mechanism is connected with girder construction；Anchoring mechanism includes anchoring backing plate and anchor bolt, and anchoring backing plate is consolidated with girder construction
Fixed to be connected, one end of anchor bolt is fixed between anchoring backing plate and girder construction, and the other end of anchor bolt is from fishback
Inner side reaches the outside of fishback by the bolt hole on fishback and is fastened by fastener.
Preferably, fishback includes movable fishback and the fixed broach plate being used in combination with movable fishback, described
Rotation vibration absorption and isolation support is provided between movable fishback and girder construction；Rotate and offered and anchor bolt on vibration absorption and isolation support
The preformed hole that matches of shank of bolt, through the preformed hole and movable fishback below anchor bolt autorotation vibration absorption and isolation support
It is connected.
Preferably, anchor on backing plate and be provided with the groove to match with the bolt head on anchor bolt one end, when anchoring is padded
When plate is fixed on girder construction, bolt head is limited in the groove, and the shank of bolt of anchor bolt passes through bottom portion of groove
Bolt hole stretches out the groove.
Preferably, on fishback, with the corresponding position of fastener, holding tank is offered, fastener is fixed on anchoring
After on bolt, which is located in holding tank.
Preferably, when being subjected to displacement between fishback, anchor bolt and fastener can move accordingly.
Preferably, the depth and width of the groove corresponding to movable fishback side are respectively greater than matched anchoring spiral shell
The thickness and width of the bolt head of bolt, the diameter of the bolt hole corresponding to movable fishback side are respectively greater than matched anchoring
The diameter of the shank of bolt of bolt, the width of holding tank corresponding to movable fishback side are more than the width of fastener.
Preferably, preformed groove or pre-embedded steel slab are provided with girder construction, anchoring backing plate is welded on preformed groove bottom or institute
State on pre-embedded steel slab.
Preferably, it is provided with epoxy resin mortar/high intensity accelerated cement filled layer below fishback；The epoxy resin
Reinforcing bar anti-cracking net is added on mortar/high intensity accelerated cement filled layer；It is filled with bolt hole and holding tank on fishback
Epoxy resin.
Preferably, the utility model further includes the riser positioned at fishback tooth root side, and riser is fixed with girder construction to be connected
Connect, the side wall of riser is connected with corresponding side wall on fishback tooth root side.
A kind of construction method of bridge extension joint, includes the following steps, anchor bolt is passed through in its corresponding anchoring
Anchoring pad, is then fixedly connected in the substructure of preformed groove by backing plate；
The welded reinforcement rack between fishback and girder construction；
Rotating oscillation damping bearing is placed in the preformed groove of movable fishback side, anchor bolt is passed through on rotating oscillation damping bearing
Preformed hole.
Water repellent component is installed at beam seam；
Band nitre high intensity accelerated cement or epoxy resin mortar are poured between fishback and girder construction and is smoothed out；
Installation activity fishback and fixed broach plate after band nitre high intensity accelerated cement or epoxy resin mortar initial set, its
Middle activity fishback, which is installed on, carry rotating oscillation damping bearing side, and fixed broach plate is installed on opposite side, and activity fishback with
The broach of fixed broach plate is arranged in a crossed manner.
After band nitre high intensity accelerated cement or epoxy resin mortar thoroughly solidify, to the bolt hole on holding tank and fishback
Inside pour into epoxy resin.
On the one hand, there is provided one kind is by varying multi-directional deflection structure（The situation of corner is realized using rubber support, for rubber
Glue bearing thickness requirement is relatively thin）And anchorage style（Utilize the anchorage style for anchoring backing plate pinning anchor bolt cap head）Shallow embedding formula
Multidirectional displacement bridge expansion device, it can obtain firm anchor in the case where beam-ends preformed groove can not realize deeper extension
Gu and the stable transition of strength is realized by the strong structure of high intensity accelerated cement or epoxy resin mortar, and take into account reality
Multi-directional deflection function is showed.
In addition, the utility model provides the construction method of bridge extension joint, construction procedure is succinct, helps to improve construction
Efficiency.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the utility model activity fishback and the structure diagram of fixed broach Board position relation；
Fig. 3 is the structure diagram of the utility model groove and holding tank；
Fig. 4 is the structure diagram of the utility model riser and fishback position relationship；
Fig. 5 is the structure diagram of the utility model epoxy resin mortar/high intensity accelerated cement filled layer position.
Embodiment
The embodiment provided below in conjunction with attached drawing 1 to 5, further illustrates specific embodiment of the present utility model.This reality
The following description is not limited to new.
Embodiment 1
As shown in Figs. 1-5, a kind of shallow embedding formula Multidirectional displacement bridge expansion device, including fishback, water repellent component 5 and cunning
Plate, fishback are connected by anchoring mechanism with girder construction；Fishback is arranged in pairs, that is, is separately mounted to two girder constructions
On, the comb structure on a pair of of fishback intersects setting, and gap is formed between comb structure, is ensureing that normally travel uses
On the premise of supply adjacent beam body between deformational displacement.
It is a platy structure that the anchoring mechanism, which includes anchoring backing plate 4 and anchor bolt 3, anchoring backing plate, anchors backing plate 4
Be fixedly linked with girder construction, one end of anchor bolt 3 is fixed between anchoring backing plate 4 and girder construction, anchor bolt 3 it is another
One end reaches the outside of fishback from the inner side of fishback by bolt hole 9, is then fastened by fastener（Fishback and fine strain of millet
For on the inside of fishback, opposite side, i.e., the side on bridge floor, is on the outside of fishback between body structure）.
Further, the water repellent component 5 is water-proof slab, water-proof slab be arranged on two adjacent girder constructions it
Between；The slide plate is stainless steel slide plate 6, and stainless steel slide plate 6 is arranged on 7 lower part of fixed broach plate；The fastener is fastening spiral shell
Mother 10.
Preferably, anchor on backing plate 4 and be provided with the groove 11 to match with the bolt head on 3 one end of anchor bolt, work as anchor
Gu backing plate 4 is fixed on girder construction, bolt head（That is the crown of anchor bolt）It is limited in the groove 11, anchors spiral shell
The shank of bolt of bolt 3 stretches out the groove 11 by being opened in the bolt hole 9 of 11 bottom of groove；Offered in groove 11 and only hold spiral shell
Tightening latch passes through, the bolt hole 9 that bolt head can not pass through, after anchoring backing plate 4 is fixed in fine strain of millet body structure, bolt one end（That is bolt
End where head）Be limited/holding is between groove 11 and fine strain of millet body structure.
Anchored by way of the crown for pinning bolt, it is possible to achieve the rotation of 3 certain amplitude of anchor bolt is adjusted, next pair
Answer the bolt hole 9 on fishback；And than being directly welded at box beam top surface or bar-mat reinforcement（Girder construction）On mode, this reality
With new disclosed anchorage style, it is attached using anchoring backing plate 4, its bonding area bigger, anchor force is also relatively reliable.
Further, on movable fishback 1 and fixed broach plate 7, with 10 corresponding position of clamp nut, open respectively
Equipped with holding tank 12, after clamp nut 10 is fixed on anchor bolt 3, which is located in the holding tank 12, really
The outer surface of fishback will not be protruded from by protecting the clamp nut 10.
Further, when being subjected to displacement between fishback, anchor bolt 3 and fastener can move accordingly.
Preferably, the depth and width of the groove 12 corresponding to movable 1 side of fishback are respectively greater than matched anchor
The thickness and width of the bolt head of fixing bolt 3, the diameter of the bolt hole 9 corresponding to movable 1 side of fishback is respectively greater than and it
The diameter of the shank of bolt of anchor bolt 3 is matched, the width of holding tank 12 and depth are respectively greater than corresponding to movable 1 side of fishback
The width and thickness of clamp nut 10.
The depth of groove 11 is more than the thickness of the bolt head of anchor bolt 3, and the width of groove 11 is more than the width of bolt head,
The diameter of bolt hole 9 is more than the diameter of the shank of bolt of anchor bolt 3, and the width of holding tank 12 is more than the width of fastener so that
Movable fishback 1 and fixed broach plate 7 can rotate within the specific limits under the environmental activities such as extraneous temperature, pressure.Further
, each interstructural corresponding dimension difference described above is 1mm ~ 2mm.
Preferably, fishback includes movable fishback 1 and the fixed broach plate 7 being used in combination with movable fishback 1, institute
State and be provided with rotating oscillation damping bearing 2 between movable fishback 1 and girder construction；The rotation that movable 1 lower part of fishback is set subtract every
Bearing 2 is shaken, is deformed by the corner of itself to realize the multi-directional deflection function of movable fishback 1.Further, rotate and subtract shock insulation
Bearing 2 is laminated rubber bearing, its internal structure includes stiffened steel plates and is laminated with rubber, and rubber layer alternates sulphur with steel plate layer
Change and bond, damping and corner are realized by the rubber deformation of the bearing, so as to fulfill the multi-directional deflection at expansion joint.
Further, offer on the rotation vibration absorption and isolation support 2 and reserved with what the shank of bolt of anchor bolt 3 matched
Hole, 3 autorotation vibration absorption and isolation support of anchor bolt lower section are connected through the preformed hole with movable fishback 1.
Preferably, below fishback（Between fishback and girder construction）It is provided with epoxy resin mortar/high intensity rapid hardening
Cement filled layer 13.
Further, after tighter clamp nut 10, epoxy resin is poured into holding tank 12 and bolt hole 9, forms epoxy
Resin filling layer 13, prevents anchor bolt 3 from loosening.
Embodiment 2
The present embodiment is without attached drawing, and referring to the drawings 5, the present embodiment makes following optimization on the basis of embodiment 1：Asphalt mixtures modified by epoxy resin
Reinforcing bar anti-cracking net is added on fat mortar/high intensity accelerated cement filled layer 13.
Preferably, fishback is anchored in the default groove in beam body, i.e., girder construction is the building default preformed groove in end face；
Anchoring backing plate 4 is welded on default trench bottom.
Embodiment 3
As shown in Figure 2 and Figure 5, the present embodiment is relative to the difference of embodiment 1, is set in fishback heel side
Riser 8 is equipped with, riser 8 is welded with default trench bottom；I.e. in movable fishback 1 and the tooth root of fixed broach plate 7（On fishback with
Broach side is crown side, and the side opposite with tooth tip portion is tooth root side）Riser 8, the side wall of riser 8 is fixedly installed in side
It is connected with corresponding side wall on fishback tooth root side, which opens the effect for supporting and protecting for pave-load layer and fishback.
In some embodiments of the utility model, 8 structure of riser is eliminated relative to embodiment 3, it turns out that beam body
Because structure and hardness are asked between band nitre high intensity accelerated cement or epoxy resin mortar filling in top surface pave-load layer and preformed groove
Topic can not be integrated（Beam body top surface pave-load layer is filled with the band nitre high intensity accelerated cement in preformed groove or epoxy resin mortar
It is located at the both sides of riser respectively）, it is easy to split occur and is easily destroyed so that its integral fastening stability is less than implementation
Example 3.
Embodiment 4
Referring to the drawings 1-5, anchor bolt 3 is passed through corresponding anchor by a kind of construction method of bridge extension joint, a.
Gu anchoring backing plate 4, is then welded to connect in the substructure of preformed groove by backing plate 4, the substructure is reserved trench bottom
Steel plate；
B. in fishback（I.e. movable fishback and fixed broach plate）On position corresponding to lower section（This in the present embodiment is right
The position answered is in preformed groove）Welded reinforcement rack, after lower step pours preformed groove, which can prevent pouring structure from opening
Split, and improve the anchoring stability that the stress intensity with nitre high intensity accelerated cement or epoxy resin mortar consolidates anchor bolt 3；
C. rotating oscillation damping bearing 2 is placed in the preformed groove of movable 1 side of fishback, anchor bolt 3 is passed through rotating oscillation damping
Preformed hole on bearing 2.
D., water repellent component 5 is installed at beam seam：The water repellent component 5 includes one layer of water-proof slab, and water-proof slab is laid on comb
Tooth plate lower part, along the elongated setting in expansion joint, has integral waterproofing and cushioning effect.Offered on water-proof slab and anchor bolt
3 corresponding bolts hole 9.
E. band nitre high intensity accelerated cement or epoxy resin mortar are poured in preformed groove and is smoothed out；
F. installation activity fishback 1 and fixed broach plate after band nitre high intensity accelerated cement or epoxy resin mortar initial set
7, wherein movable fishback 1 is installed on and carries 2 side of rotating oscillation damping bearing, fixed broach plate 7 is installed on opposite side, and movable comb
The broach of tooth plate 1 and fixed broach plate 7 is arranged in a crossed manner.
G. after band nitre high intensity accelerated cement or epoxy resin mortar thoroughly solidify, the locking nut of anchor bolt 3 is locked,
Epoxy resin will be poured into bolt hole 9 on fishback, epoxy resin will be equally injected in holding tank 12.
In some embodiments of the utility model, without preformed groove on girder construction, stretched using being installed on girder construction
The mode of pre-embedded steel slab supplies the anchor connection of telescopic device on the position of compression apparatus.
Embodiment 5
Referring to the drawings 1-5, a kind of bridge telescopic system for containing above-mentioned bridge extension joint, including anchoring unit, fill out
Fill transition element, vibration absorption unit, waterproof unit and reinforcement elements；
Anchoring unit, by passing through anchor bolt 3 in corresponding anchoring backing plate 4, then fixes anchoring backing plate 4
It is connected in the substructure of preformed groove；
Transition element is filled, passes through the welded reinforcement rack after-pouring band nitre high intensity rapid hardening between fishback and girder construction
Cement or epoxy resin mortar improve the smooth transition of anchoring unit anchoring effect and strength to realize.
Vibration absorption unit, by setting rotating oscillation damping bearing 2 between filling transition element and movable fishback 1, to realize
Movable fishback 1 is movable under external force.
Waterproof unit, by setting water-proof slab between two adjacent beam bodies, to realize waterproof.
Reinforcement elements, by pouring into asphalt mixtures modified by epoxy resin into the holding tank 12 and bolt hole 9 on the anchoring unit after installing
Fat is reinforced to realize.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that the specific implementation of the utility model is confined to these explanations.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded
To belong to the scope of protection of the utility model.
Claims (9)
1. a kind of shallow embedding formula Multidirectional displacement bridge expansion device, including fishback, water repellent component and slide plate, it is characterised in that：
The fishback is connected by anchoring mechanism with girder construction；
The anchoring mechanism includes anchoring backing plate and anchor bolt, and anchoring backing plate is fixedly linked with girder construction, anchor bolt
One end be fixed on anchoring backing plate and girder construction between, the other end of anchor bolt passes through on fishback from the inner side of fishback
Bolt hole reach the outside of fishback and fastened by fastener.
2. shallow embedding formula Multidirectional displacement bridge expansion device according to claim 1, it is characterised in that：The fishback includes
Movable fishback and the fixed broach plate being used in combination with movable fishback, set between the activity fishback and girder construction
It is equipped with rotation vibration absorption and isolation support；
Rotate and offer the preformed hole to match with the shank of bolt of anchor bolt on vibration absorption and isolation support, anchor bolt autorotation subtract every
It is connected below shake bearing through the preformed hole with movable fishback.
3. shallow embedding formula Multidirectional displacement bridge expansion device according to claim 1, it is characterised in that：On the anchoring backing plate
The groove to match with the bolt head on anchor bolt one end is provided with, when anchoring backing plate is fixed on girder construction, bolt
Head is limited in the groove, and the shank of bolt of anchor bolt stretches out the groove by the bolt hole of bottom portion of groove.
4. shallow embedding formula Multidirectional displacement bridge expansion device according to claim 1, it is characterised in that：On fishback, with
The corresponding position of fastener, offers holding tank, and after fastener is fixed on anchor bolt, which is located at holding tank
It is interior.
5. shallow embedding formula Multidirectional displacement bridge expansion device according to claim 1, it is characterised in that：When being sent out between fishback
During raw displacement, anchor bolt and fastener can move accordingly.
6. shallow embedding formula Multidirectional displacement bridge expansion device according to claim 5, it is characterised in that：Movable fishback side
The depth and width of corresponding groove are respectively greater than the thickness and width of the bolt head of matched anchor bolt, movable comb
The diameter of bolt hole corresponding to tooth plate side is respectively greater than the diameter of the shank of bolt of matched anchor bolt, movable fishback
The width of holding tank corresponding to side is more than the width of fastener.
7. shallow embedding formula Multidirectional displacement bridge expansion device according to claim 1, it is characterised in that：On the girder construction
Preformed groove or pre-embedded steel slab are provided with, anchoring backing plate is welded on preformed groove bottom or the pre-embedded steel slab.
8. shallow embedding formula Multidirectional displacement bridge expansion device according to claim 4, it is characterised in that：Set below fishback
There is epoxy resin mortar/high intensity accelerated cement filled layer；Add on the epoxy resin mortar/high intensity accelerated cement filled layer
Equipped with reinforcing bar anti-cracking net；
Epoxy resin is filled with bolt hole and holding tank on fishback.
9. shallow embedding formula Multidirectional displacement bridge expansion device according to claim 1, it is characterised in that：Including positioned at fishback
The riser of tooth root side, riser are fixedly connected with girder construction, side wall and the corresponding side wall on fishback tooth root side of riser
It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721268368.1U CN207314134U (en) | 2017-09-29 | 2017-09-29 | Shallow embedding formula Multidirectional displacement bridge expansion device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721268368.1U CN207314134U (en) | 2017-09-29 | 2017-09-29 | Shallow embedding formula Multidirectional displacement bridge expansion device |
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| CN207314134U true CN207314134U (en) | 2018-05-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107687126A (en) * | 2017-09-29 | 2018-02-13 | 衡水旗舰桥隧橡塑有限公司 | The construction method of shallow embedding formula Multidirectional displacement bridge expansion device and bridge extension joint |
| CN109024261A (en) * | 2018-09-12 | 2018-12-18 | 天津桥通科技发展有限公司 | Fishback lateral deflection device |
| CN110144816A (en) * | 2019-06-20 | 2019-08-20 | 路宝高分子材料科技有限公司 | A kind of expansion gap device with non-motor vehicle anti-sunken function |
| CN112538817A (en) * | 2020-12-14 | 2021-03-23 | 衡水安夙路桥材料有限公司 | Assembled bridge expansion joint and construction process |
-
2017
- 2017-09-29 CN CN201721268368.1U patent/CN207314134U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107687126A (en) * | 2017-09-29 | 2018-02-13 | 衡水旗舰桥隧橡塑有限公司 | The construction method of shallow embedding formula Multidirectional displacement bridge expansion device and bridge extension joint |
| CN109024261A (en) * | 2018-09-12 | 2018-12-18 | 天津桥通科技发展有限公司 | Fishback lateral deflection device |
| CN110144816A (en) * | 2019-06-20 | 2019-08-20 | 路宝高分子材料科技有限公司 | A kind of expansion gap device with non-motor vehicle anti-sunken function |
| CN112538817A (en) * | 2020-12-14 | 2021-03-23 | 衡水安夙路桥材料有限公司 | Assembled bridge expansion joint and construction process |
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