CN105803935A - Telescopic device - Google Patents
Telescopic device Download PDFInfo
- Publication number
- CN105803935A CN105803935A CN201610316020.9A CN201610316020A CN105803935A CN 105803935 A CN105803935 A CN 105803935A CN 201610316020 A CN201610316020 A CN 201610316020A CN 105803935 A CN105803935 A CN 105803935A
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- CN
- China
- Prior art keywords
- tooth plate
- retractor device
- fishback
- plate
- anchor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a telescopic device, which is used for a bridge. The bridge is provided with two end surfaces; an expansion joint positioned between the two end surfaces is arranged in the bridge; the telescopic device comprises a comb tooth plate; the comb tooth plate is connected between the two end surfaces and covers the expansion joint; the telescopic device also comprises a connecting assembly; the comb tooth plate is connected with a main beam of the bridge through the connecting assembly; the connecting assembly comprises a plurality of embedded anchoring elements, a plurality of anchoring plates and a plurality of connecting elements; the plurality of embedded anchoring elements are arranged on the main beam at intervals; the plurality of anchoring plates are arranged at the bottom of the comb tooth plate at intervals; an included angle is formed between each anchoring plate and the comb tooth plate; each anchoring plate is positioned between every two adjacent embedded anchoring elements; each connecting element is connected with the corresponding anchoring plate; each connecting element is connected with the corresponding embedded anchoring element. The telescopic device provided by the invention has the advantages that the anchoring connection mode of the comb tooth plate by using screw bolts in the prior art is changed; the bearing capability of the comb tooth plate is improved, so that the comb tooth plate cannot be damaged easily; the service life of the telescopic device is prolonged.
Description
Technical field
The present invention relates to bridge structure design field, particularly to a kind of board-like retractor device of comb.
Background technology
Bridge extension joint is for making vehicle smoothly pass bridge floor and meet the needs of bridge superstructure deformation, the various devices being made up of the component such as rubber and steel arranged at bridge expanssion joint place.Bridge extension joint mainly has rubber type retractor device, deformed steel list seam retractor device, the board-like retractor device of comb, modular expansion device.
The board-like retractor device of comb adopted both at home and abroad at present is mainly made up of fishback, anchor bolt, waterproof construction etc..
In existing fishback retractor device, bolt anchoring is the crucial force part of the board-like retractor device of comb, is also the weakest link.When bridge structure bears vehicular load, beam-ends drives fishback to produce displacement and corner, and after fishback, anchor bolt bears pulsed drawing effect repeatedly, and frictional force makes bolt bear shear action backward simultaneously；Anchor bolt repeatedly tension and compression, shearing combined effect under, produce that thread damage nut comes off, concrete cracking bond stress deficiency bolt gets loose, bolt fatigue fracture etc. destroys, retractor device complete failure, service life does not far reach design service life.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the defect that prior art fishback low bearing capacity, life-span are low, it is provided that a kind of retractor device.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of retractor device, for bridge, described bridge has both ends of the surface, being provided with the expansion joint between end face described in two in described bridge, described retractor device includes a fishback, and described fishback is connected to described in two between end face and is covered on described expansion joint, it is characterized in that, described retractor device also includes connecting assembly, and described fishback is connected to the girder of described bridge by described connection assembly, and described connection assembly includes:
Multiple pre-buried anchoring pieces, are arranged at intervals on described girder；
Multiple anchor plates, are arranged at intervals at the bottom of described fishback, and are formed with an angle between each described anchor plate and described fishback, and each described anchor plate is between anchoring piece pre-buried described in adjacent two；
Multiple connectors, each described connector is connected to described anchor plate, and each described connector is fixed on described pre-buried anchoring piece.
It is preferred that described pre-buried anchoring piece is pre-buried anchor bar, described pre-buried anchor bar is the ring steel reinforced bar with an opening；
Described ring steel reinforced bar has one first connecting portion, two second connecting portions and two support portions being oppositely arranged, described first connecting portion is connected to one end of support portion described in two, the other end of support portion described in two is connected to one end of the second connecting portion described in two, forming described opening described in two between the other end of the second connecting portion, described in two, the second connecting portion is connected to described girder；
Described connector is arranged in described ring steel reinforced bar, and described connector is connected to the bottom of described first connecting portion；Described in two, the second connecting portion is connected to described girder by cast.
Described connector is connected to described ring steel reinforced bar, and described ring steel reinforced bar is connected to described girder by cast so that described fishback is firmly secured to described girder and simple in construction, it is simple to construction.
It is preferred that described fishback has big tooth plate and a little tooth plate, described big tooth plate and described little tooth plate are respectively provided with a body and the protuberance being arranged at intervals on described body sidewall, and the protuberance correspondence of described big tooth plate is engaged in the protuberance of described little tooth plate；
The body of described big tooth plate is connected to wherein end face described in, and the body of described little tooth plate is connected to another described end face, and the body of described big tooth plate is covered on described expansion joint；
Multiple described anchor plates are arranged at intervals at the bottom of the body of described big tooth plate and the bottom of the protuberance of described little tooth plate.
Being configured the quantity of described anchor plate as required, for the ease of operation, connect reliably, described anchor plate is by being welded to connect in described big tooth plate and described little tooth plate.
It is preferred that described angle is 90 °.
When angle is 90 °, described anchor plate is configured along the width of described fishback, it is simple to connects described connector and described pre-buried anchoring piece, and then is easy to construction, and fixing relatively reliable.
It is preferred that be arranged at intervals with multiple through hole along its width on each described anchor plate, described through hole corresponding in multiple described anchor plates is interconnected；
Described connector is for connecting reinforcing bar, multiple described connection reinforcing bar correspondences are arranged in the described through hole on multiple described anchor plate and are connected to multiple described pre-buried anchoring piece, and multiple described connection reinforcing bar is resisted against multiple described pre-buried anchoring piece, the quantity of described connection reinforcing bar is identical with the quantity of the described through hole on each described anchor plate；Being connected by cast between each described connection reinforcing bar and corresponding described through hole, each described connection reinforcing bar is fixed on multiple described pre-buried anchoring piece by cast.
Described connection reinforcing bar is firmly secured to the through hole on described anchor plate by pouring into a mould concrete, and simple and convenient, the quality safety of constructing is reliable, and it has good anti-fatigue performance.
Described connection reinforcing bar is firmly secured to described pre-buried anchoring piece by pouring into a mould concrete, thus, described fishback is fixed on described anchor plate by described connection reinforcing bar, described pre-buried anchoring piece is firmly secured to described girder.
It is preferred that the two sides of each described anchor plate are welded with multiple weldering nail along its width correspondence respectively, the multiple described weldering nail correspondence laid respectively in each described anchor plate on two sides is fixed on and is resisted against pre-buried anchoring piece described in adjacent two；Each described weldering nail is by pouring into a mould the described pre-buried anchoring piece being fixed on correspondence.
Preferably, described retractor device also includes multiple waterproofing elements, multiple described waterproofing elements intervals are layed in the bottom of described fishback, and each described waterproofing elements is connected to described in two between end face, and waterproofing elements described in adjacent two is located therein the both sides of anchor plate described in.
Multiple waterproofing elements make the moisture such as rainwater will not enter described girder from described expansion joint, decrease described bridge because of described girder and are chronically in hydrops environment the generation of the phenomenon damaged.
It is preferred that the middle part of described waterproofing elements forms a protuberance at described flexible place, described protuberance extends to the direction of described girder；
Described protuberance has two side and the curved portions being connected to described in two between sidewall, and described expansion joint has two side, and the two side of described protuberance is attached at the two side at described expansion joint respectively.
It is preferred that described waterproofing elements is water proof rubber bar.
Meeting on the basis of this area general knowledge, above-mentioned each optimum condition, can combination in any, obtain the preferred embodiments of the invention.
The actively progressive effect of the present invention is in that:
Retractor device in the present invention changes and adopts bolt that fishback carries out the mode of anchor connection in prior art, improves the bearing capacity of fishback so that fishback is survivable, improves the service life of retractor device.
Accompanying drawing explanation
Fig. 1 is the structural representation of the retractor device of the embodiment of the present invention 1.
Fig. 2 is the structural representation of fishback in Fig. 1.
Fig. 3 is the structural representation of the retractor device of the embodiment of the present invention 2.
Description of reference numerals:
1: fishback
11: big tooth plate
111: protuberance
112: body
12: little tooth plate
121: protuberance
122: body
2: anchor plate
21: through hole
22: weldering nail
3: ring steel reinforced bar
31: the first connecting portions
32: the second connecting portions
33: support portion
4: anchor plate width
5: connect reinforcing bar
6: fishback width
7: water proof rubber bar
71: protuberance
Detailed description of the invention
Mode by the examples below further illustrates the present invention, but does not therefore limit the present invention among described scope of embodiments.
Embodiment 1
As shown in Figure 1, retractor device for bridge includes fishback 1 and connects assembly, described bridge has both ends of the surface, described bridge is provided with the expansion joint between end face described in two, fishback 1 is connected to described in two between end face and is covered on described expansion joint, and fishback is connected to the girder of described bridge by described connection assembly.Described connection assembly includes multiple pre-buried anchoring piece, multiple anchor plate 2 and multiple connector.Wherein, multiple described pre-buried anchoring pieces are arranged at intervals on described girder；Multiple anchor plates 2 are arranged at intervals at the bottom of fishback 1, and are formed with an angle between each anchor plate 2 and fishback 1, and each anchor plate 2 is between anchoring piece pre-buried described in adjacent two；Each described connector is connected to anchor plate 2, and each described connector is fixed on described pre-buried anchoring piece.
In the present embodiment, as shown in Figure 2, fishback 1 has big tooth plate 11 and a little tooth plate 12, and big tooth plate 11 and little tooth plate 12 are respectively provided with a body and the protuberance being arranged at intervals on described body sidewall, and protuberance 111 correspondence of big tooth plate 11 is engaged in the protuberance 121 of little tooth plate 12；The body 112 of big tooth plate 11 is connected to wherein end face described in, and the body 122 of little tooth plate 12 is connected to another described end face, and the body 112 of big tooth plate 11 is covered on described expansion joint；Multiple anchor plates 2 are arranged at intervals at the bottom of the body 112 of big tooth plate 11 and the bottom of the protuberance 121 of little tooth plate 12.
In the present embodiment, as it is shown in figure 1, described pre-buried anchoring piece is pre-buried anchor bar, described pre-buried anchor bar is the ring steel reinforced bar 3 with an opening, and ring steel reinforced bar 3 is fixed on described girder by pouring into a mould concrete.Wherein, ring steel reinforced bar 3 has one first connecting portion 31, two second connecting portion 32 and two support portions 33 being oppositely arranged, first connecting portion 31 is connected to one end of two support portions 33, the other end of two support portions 33 is connected to one end of two second connecting portions 32, forming described opening between the other end of two second connecting portions 32, two second connecting portions 32 are connected to described girder by cast.
In the present embodiment, as it is shown in figure 1, be arranged at intervals with three through holes 21 along its width 4 on each anchor plate 2, through hole 21 corresponding in multiple anchor plates 2 is interconnected.Described connector is for connecting reinforcing bar 5, and three connect reinforcing bar 5 correspondence and are arranged in the through hole 21 on the multiple anchor plates 2 in Fig. 1 and are connected to multiple ring steel reinforced bar 3, and three connect reinforcing bar 5 and are resisted against the first connecting portion 31 of multiple ring steel reinforced bar 3.Being connected by cast between each connection reinforcing bar 5 and corresponding through hole 21, each connection reinforcing bar 5 is by pouring into a mould the first connecting portion 31 being connected to multiple ring steel reinforced bar 3, and each connection reinforcing bar 5 is connected to the bottom of the first connecting portion 31.
Connect reinforcing bar 5 and be firmly secured to the through hole 21 on anchor plate 2 by pouring into a mould concrete, construct simple and convenient, quality safety reliably, and it has good anti-fatigue performance, improves the bearing capacity of fishback.
Connecting reinforcing bar 5 and be firmly secured to the first connecting portion 31 of ring steel reinforced bar 3 by pouring into a mould concrete, ring steel reinforced bar 3 is connected to described girder by cast so that fishback 1 is firmly secured to described girder and simple in construction, it is simple to construction.
In the present embodiment, described angle is 90 °.
When angle is 90 °, the width 6 of anchor plate 2 fishback 1 along Fig. 2 in Fig. 1 is configured, it is simple to connects ring steel reinforced bar 3 and connects reinforcing bar 5, and then being easy to construction, and fixing relatively reliable.
As it is shown in figure 1, retractor device also includes multiple water proof rubber bar 7, multiple water proof rubber bar 7 intervals are layed in the bottom of fishback 1, and each water proof rubber bar 7 is connected to described in two between end face, and adjacent two water proof rubber bars 7 are located therein the both sides of an anchor plate 2.
Multiple water proof rubber bars 7 make the moisture such as rainwater will not enter described girder from described expansion joint, decrease described bridge because of described girder and are chronically in hydrops environment the generation of the phenomenon damaged.
In the present embodiment, the middle part of water proof rubber bar 7 forms a protuberance 71 at described flexible place, and protuberance 71 extends to the direction of described girder；Protuberance 71 has two side and the curved portions being connected to described in two between sidewall, and described expansion joint has two side, and the two side of protuberance 71 is attached at the two side at described expansion joint respectively.
Embodiment 2
In present embodiment, the structure of retractor device is essentially identical with embodiment 1, the difference is that only described connector and the structure of described anchor plate.
As it is shown on figure 3, in the present embodiment, the two sides of anchor plate 2 are welded with three weldering nails 22 along its width 4 correspondence respectively, lay respectively at three on two sides weldering nails 22 and be correspondingly connected to and be resisted against two adjacent ring steel reinforced bars 3 in each anchor plate 2；Each weldering nail 22 is by pouring into a mould the ring steel reinforced bar 3 being fixed on correspondence.
Although the foregoing describing the specific embodiment of the present invention, it will be appreciated by those of skill in the art that these are merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is under the premise without departing substantially from principles of the invention and essence, it is possible to these embodiments are made various changes or modifications, but these change and amendment each falls within protection scope of the present invention.
Claims (9)
1. a retractor device, for bridge, described bridge has both ends of the surface, being provided with the expansion joint between end face described in two in described bridge, described retractor device includes a fishback, and described fishback is connected to described in two between end face and is covered on described expansion joint, it is characterized in that, described retractor device also includes connecting assembly, and described fishback is connected to the girder of described bridge by described connection assembly, and described connection assembly includes:
Multiple pre-buried anchoring pieces, are arranged at intervals on described girder；
Multiple anchor plates, are arranged at intervals at the bottom of described fishback, and are formed with an angle between each described anchor plate and described fishback, and each described anchor plate is between anchoring piece pre-buried described in adjacent two；
Multiple connectors, each described connector is connected to described anchor plate, and each described connector is fixed on described pre-buried anchoring piece.
2. retractor device as claimed in claim 1, it is characterised in that described pre-buried anchoring piece is pre-buried anchor bar, and described pre-buried anchor bar is the ring steel reinforced bar with an opening；
Described ring steel reinforced bar has one first connecting portion, two second connecting portions and two support portions being oppositely arranged, described first connecting portion is connected to one end of support portion described in two, the other end of support portion described in two is connected to one end of the second connecting portion described in two, forming described opening described in two between the other end of the second connecting portion, described in two, the second connecting portion is connected to described girder；
Described connector is arranged in described ring steel reinforced bar, and described connector is connected to the bottom of described first connecting portion；Described in two, the second connecting portion is connected to described girder by cast.
3. retractor device as claimed in claim 1, it is characterized in that, described fishback has big tooth plate and a little tooth plate, described big tooth plate and described little tooth plate are respectively provided with a body and the protuberance being arranged at intervals on described body sidewall, and the protuberance correspondence of described big tooth plate is engaged in the protuberance of described little tooth plate；
The body of described big tooth plate is connected to wherein end face described in, and the body of described little tooth plate is connected to another described end face, and the body of described big tooth plate is covered on described expansion joint；
Multiple described anchor plates are arranged at intervals at the bottom of the body of described big tooth plate and the bottom of the protuberance of described little tooth plate.
4. retractor device as claimed in claim 1, it is characterised in that described angle is 90 °.
5. the retractor device as described in claim 1-4 any one, it is characterised in that being arranged at intervals with multiple through hole along its width on each described anchor plate, described through hole corresponding in multiple described anchor plates is interconnected；
Described connector is for connecting reinforcing bar, multiple described connection reinforcing bar correspondences are arranged in the described through hole on multiple described anchor plate and are fixed on multiple described pre-buried anchoring piece, and multiple described connection reinforcing bar is resisted against multiple described pre-buried anchoring piece, the quantity of described connection reinforcing bar is identical with the quantity of the described through hole on each described anchor plate；Being connected by cast between each described connection reinforcing bar and corresponding described through hole, each described connection reinforcing bar is fixed on multiple described pre-buried anchoring piece by cast.
6. the retractor device as described in claim 1-4 any one, it is characterized in that, the two sides of each described anchor plate are welded with multiple weldering nail along its width correspondence respectively, and the multiple described weldering nail correspondence laid respectively in each described anchor plate on two sides is fixed on and is resisted against pre-buried anchoring piece described in adjacent two；Each described weldering nail is by pouring into a mould the described pre-buried anchoring piece being fixed on correspondence.
7. retractor device as claimed in claim 1, it is characterized in that, described retractor device also includes multiple waterproofing elements, multiple described waterproofing elements intervals are layed in the bottom of described fishback, each described waterproofing elements is connected to described in two between end face, and waterproofing elements described in adjacent two is located therein the both sides of anchor plate described in.
8. retractor device as claimed in claim 7, it is characterised in that the middle part of described waterproofing elements forms a protuberance at described flexible place, and described protuberance extends to the direction of described girder；
Described protuberance has two side and the curved portions being connected to described in two between sidewall, and described expansion joint has two side, and the two side of described protuberance is attached at the two side at described expansion joint respectively.
9. retractor device as claimed in claim 7 or 8, it is characterised in that described waterproofing elements is water proof rubber bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610316020.9A CN105803935A (en) | 2016-05-12 | 2016-05-12 | Telescopic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610316020.9A CN105803935A (en) | 2016-05-12 | 2016-05-12 | Telescopic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105803935A true CN105803935A (en) | 2016-07-27 |
Family
ID=56455936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610316020.9A Pending CN105803935A (en) | 2016-05-12 | 2016-05-12 | Telescopic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105803935A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100987062B1 (en) * | 2009-10-26 | 2010-10-11 | 림버스산업 주식회사 | Expansion joint for bridges and this construction technique capable of a drainage sheet change |
| CN102086628A (en) * | 2010-01-27 | 2011-06-08 | 刘祖江 | Comb plate bridge expansion device |
| CN202626830U (en) * | 2012-06-21 | 2012-12-26 | 衡水中铁建布朗科技有限公司 | Modular multi-direction-displacement comb-tooth-shaped bridge expansion and contraction device |
| CN104480855A (en) * | 2014-09-16 | 2015-04-01 | 刘祖江 | Cantilever type multidirectional displacement bolt-free comb plate extensible device and installation method thereof |
| CN204491411U (en) * | 2015-05-13 | 2015-07-22 | 衡水铭健工程橡胶有限公司 | A kind of modular multi-directional deflection comb-formed retractable device |
| JP2016037746A (en) * | 2014-08-07 | 2016-03-22 | 山内 重一 | Embedded joint structure for road bridge and construction method for the embedded joint structure |
| CN205741897U (en) * | 2016-05-12 | 2016-11-30 | 上海市政工程设计研究总院（集团）有限公司 | Retractor device |
-
2016
- 2016-05-12 CN CN201610316020.9A patent/CN105803935A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100987062B1 (en) * | 2009-10-26 | 2010-10-11 | 림버스산업 주식회사 | Expansion joint for bridges and this construction technique capable of a drainage sheet change |
| CN102086628A (en) * | 2010-01-27 | 2011-06-08 | 刘祖江 | Comb plate bridge expansion device |
| CN202626830U (en) * | 2012-06-21 | 2012-12-26 | 衡水中铁建布朗科技有限公司 | Modular multi-direction-displacement comb-tooth-shaped bridge expansion and contraction device |
| JP2016037746A (en) * | 2014-08-07 | 2016-03-22 | 山内 重一 | Embedded joint structure for road bridge and construction method for the embedded joint structure |
| CN104480855A (en) * | 2014-09-16 | 2015-04-01 | 刘祖江 | Cantilever type multidirectional displacement bolt-free comb plate extensible device and installation method thereof |
| CN204491411U (en) * | 2015-05-13 | 2015-07-22 | 衡水铭健工程橡胶有限公司 | A kind of modular multi-directional deflection comb-formed retractable device |
| CN205741897U (en) * | 2016-05-12 | 2016-11-30 | 上海市政工程设计研究总院（集团）有限公司 | Retractor device |
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Application publication date: 20160727 |