CN206256373U - A kind of automatic seamless marmem retractor device - Google Patents
A kind of automatic seamless marmem retractor device Download PDFInfo
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- CN206256373U CN206256373U CN201621309302.8U CN201621309302U CN206256373U CN 206256373 U CN206256373 U CN 206256373U CN 201621309302 U CN201621309302 U CN 201621309302U CN 206256373 U CN206256373 U CN 206256373U
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- beam body
- retractor device
- bar
- memorial alloy
- marmem
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Abstract
The utility model announces a kind of automatic seamless marmem retractor device, belongs to bridge and construction engineering technical field.Including the side bar stayed in groove in two adjacent beam bodies；Two side bars are relative, and preset slot is left between two side bars；Multiple is installed in the preset slot to be arranged side by side memorial alloy beam body；An overhanging support beam is respectively fixed with the both sides of the beam body；On in overhanging support beam described in two, the slideway relative with the preset slot is provided with；Described memorial alloy beam body one end is arranged on the slideway in an overhanging support beam, and the other end is ridden in another overhanging support beam.Compared with prior art, the utility model has the advantages that safe and reliable；Construction technology is simple and convenient to operate；Overall structure durability is high；It is applied widely；The repeated stock effect of wheel load is substantially reduced, the service life of retractor device and bridge is improve, the maintenance cost of bridge is reduced.
Description
Technical field
The utility model is related to bridge and construction engineering technical field, and specifically a kind of automatic seamless marmem is stretched
Compression apparatus.
Background technology
Bridge extension joint be for vehicle and people smoothly pass bridge floor, and set at bridge expanssion joint by rubber and steel
A kind of device of the materials such as material composition, is one of important component of bridge structure, and its quality height directly affects bridge
Service quality and driving level of comfort, and bridge service life.Because bridge extension joint directly bears in the application
The repeated stock effect of wheel load, and be chronically exposed in air, it is highly vulnerable to breakage and is relatively difficult to repair, therefore,
Excellent retractor device is selected in science of bridge building, is just particularly important.Simultaneously with the swift and violent hair of China's transportation business
Exhibition, and road network development, the quantity of bridge drastically increases, scale rapidly expands, and ultimately results in the flexible of bridge
Device consumption is also increasing, and importance is increasingly protruded.
Used as the important parameter of retractor device, its reserved expansion joint of institute is wide, extrusome (such as central sill, steel plate or close adhesive tape)
And three difficult points in the key indexs such as concrete always field of engineering technology are poured, if expansion joint is wide too small, retractor device is because super
Limit expression lobes and produce jump car, or even destroyed retractor device and lose due function, in addition, if expansion joint is wide
It is excessive, vehicular load impact and vibrations under, side bar, extrusome and pour concrete etc. and also easily damage, generate another kind of jump car,
Therefore, using excessive or too small flexible spacing, can all cause retractor device damaged；If extrusome is unable to normal movement or stretches
Contracting, retractor device can then lose due function, cause flexible spacing excessive or too small；Concrete is poured, is instantaneously shaken repeatedly in vehicle
Under dynamic Impact Load, easily cause retractor device and anchor system to be deformed and peeled off with concrete, ultimately result in flexible dress
Destruction is put, especially when the spacing between extrusome and extrusome is larger, this destruction is more prominent.
Traditional retractor device has four classes：The board-like retractor device of modular expansion device, comb, rubber type retractor device,
Deformed steel list seam retractor device, these devices have some defects or deficiency in the application, i.e. on the one hand, due to pre-
Stay expansion joint wide, meeting jam-packed narrows when heating up summer, and increase can be pulled open when having arrived winter temperature reduction, therefore in application
In cause device expansion joint it is wide be continually changing either large or smallly, especially, temperature is lower, and expansion joint is wider, easily causes jump
Car, causes expansion gap device not have due function；On the other hand, during construction, to consider that temperature influences, such as retractor device
Design and installation width, designer should determine by the suitable temperature computation of installing of selection, if retractor device actual installation temperature with
Design and installation temperature is different, and designer should be by the actual installation width of actual installation temperature computation.Wherein, the tradition for having authorized is stretched
Compression apparatus, e.g., in 2014, by ' a kind of bridge extension joint ' of Qinhuangdao construction of road and bridge development corporation, Ltd. utility model
(patent No. CN103911947B) and ' rack-and-pinion bridge extension joint ' (patent No. by Shenyang Building Univ.'s utility model
CN103850179B), 2013 by Hengshui Baoli Engineering Rubber Co., Ltd.'s utility model ' a kind of modulus type fishback stretch
Device ' (patent No. CN103669203B) and ' the chain type seamless bridge telescopic device ' by the super utility models of Wu Shu in 2012
, inevitably there is certain expansion joint width in the equal Shortcomings such as (patent No. CN102966036B) device.
Therefore, for flexible mechanism, construction technology and structural material that traditional retractor device is used etc., all it is difficult to nothing
Seam is flexible.
So, in order to improve the telescopic effect of building structure and science of bridge building retractor device and be reduced or avoided by tradition
One of the retractor device that material makes limitation in the application, method of solution are exactly to find new material, i.e., in order to reduce biography
The retractor device of system limitation in the application, it is necessary to made improvements using other materials or structure type.
Utility model content
For the problem that above-mentioned existing apparatus are present, the utility model provides a kind of automatic seamless marmem and stretches
Device, it is possible to increase the telescopic effect of retractor device, durability and the scope of application, reaches the purpose to bridge structure protection, and
Its construction technology is simple and convenient to operate, effect is safe and reliable.
The utility model is achieved through the following technical solutions：A kind of automatic seamless marmem retractor device, including
The side bar stayed in groove in two adjacent beam bodies；Two side bars are relative, and preset slot is left between two side bars；It is described pre-
Stay and multiple is installed in seam is arranged side by side memorial alloy beam body；It is horizontal an overhanging support to be respectively fixed with the both sides of the beam body
Beam；On in overhanging support beam described in two, the slideway relative with the preset slot is provided with；The memorial alloy beam body
One end is arranged on the slideway in an overhanging support beam, and the other end is ridden in another overhanging support beam.
It is further：The memorial alloy beam body is in rectangular shape, and multiple memorial alloy beam bodies are filled in two side by side
In preset slot between side bar.
Being stayed for the beam body end be provided with groove multiple embedded bar holes, and pre-buried steel is provided with the embedded bar hole of beam body
Muscle；Horizontal bar is connected between multiple embedded bars；Anchor is connected with the support being made up of embedded bar and horizontal bar
Muscle；The dowel outside fixation side bar；The concrete layer concordant with side bar is poured in groove in staying for the beam body end.
Adhesive tape is connected between side bar described in two, adhesive tape is located at the lower section of the memorial alloy beam body；The memory is closed
Golden beam body is flushed with two side bars.
The beam body is provided with the pave-load layer flushed with concrete layer；Filled with bubble in gap between two concrete layers
Foam plastics.
Compared with prior art, the utility model has the following advantages that：
1st, it is safe and reliable：The utility model retractor device is jointless structure, substantially reduces the repeated stock of wheel load
Effect, improves the service life of retractor device and bridge, reduces the maintenance cost of bridge.
2nd, construction technology is simple and convenient to operate：Need to only be processed by Shape Memory Alloy member, it is possible to obtain
Pyrocondensation and the memorial alloy beam body of cold expanding, to make up the deformation of abutment heat expansion and shrinkage, abutment heat expansion and shrinkage as required
Deformation is big, then the memorial alloy beam body size distortion for designing is also larger.
3rd, overall structure durability is high：Due to memorial alloy beam body have it is larger reply deformation, good corrosion resistance,
Preferable plasticity, intensity higher and fatigue life is long and the advantages of small such environmental effects so that retractor device it is durable
Property is higher.
4th, it is applied widely：The central sill of ordinary metallic material is replaced with memorial alloy beam body, is significantly expanded and is stretched
The range of application of compression apparatus so that such retractor device is applicable not only to the small area of the temperature difference, and it is larger to be also applied for the temperature difference
Area, be not only applicable single seam, and be also applied for many seam retractor devices.
Brief description of the drawings
Fig. 1 is work progress flow chart of the present utility model；
Fig. 2 is floor map of the present utility model；
Fig. 3 is the schematic diagram of memorial alloy beam body most short status in Fig. 2；
Fig. 4 is the schematic diagram of memorial alloy beam body most long status in Fig. 2；
Fig. 5 is the front view of the beam body for having overhanging support beam in Fig. 2；
Fig. 6 is the top view of the beam body for having overhanging support beam in Fig. 2；
Fig. 7 is the front view of the beam body without overhanging support beam in Fig. 2；
Fig. 8 is the top view of the beam body without overhanging support beam in Fig. 2.
In figure：1st, beam body, 2, embedded bar, 3, overhanging support beam, 4, slideway, 5, foamed plastics, 6, pave-load layer, 7, pour
Note concrete, 8, side bar, 9, memorial alloy beam body, 10, adhesive tape, 11, dowel, 12, horizontal bar.
Specific embodiment
The following is a specific embodiment of the present utility model, the utility model is described further in conjunction with accompanying drawing.
As shown in Fig. 2 to Fig. 8, a kind of automatic seamless marmem retractor device, it is adjacent that retractor device is arranged on two
Staying in groove in beam body 1；Staying for the end of beam body 1 be provided with groove multiple embedded bar holes, installs perpendicular in the embedded bar hole of beam body 1
To embedded bar 2；Horizontal bar 12 is connected between multiple embedded bars 2, is stayed in beam body 1 and formed in groove one by embedded bar
2 and horizontal bar 12 composition support；U-shaped dowel 11 is welded with this support, dowel 11 catches on support, outside dowel 11
Weld side bar 8 in side；The concrete layer 7 concordant with side bar 8 is poured in groove in staying for the end of beam body 1, beam body 1 is provided with and concrete
The pave-load layer 6 that layer 7 is flushed；Filling foamed plastics 5 in gap between two concrete layers 7；Two side bars 8 are relative, two side bars 8
Between leave preset slot.As shown in Fig. 5 to Fig. 8, in two beam bodies 1, the both sides for having a beam body 1 are fixed with overhanging support beam
3；A upper surface for overhanging support beam 3, is provided with the slideway 4 relative with preset slot wherein.As shown in Figure 3, Figure 4, remember
Alloy beam body 9 is in rectangular shape, and the memorial alloy beam body 9 that multiple is designed is filled between two side bars 8 side by side as central sill
Preset slot in, until seam is filled up completely with, the upper surface of memorial alloy beam body 9 is kept along elevation with side bar upper surface；Memory is closed
The one end of golden beam body 9 is arranged on the slideway 4 in an overhanging support beam 3, and the other end rides over another overhanging support beam 3
On；Adhesive tape 10 is connected between two side bars 8, adhesive tape 10 is located at the lower section of memorial alloy beam body 9.
Memorial alloy beam body 9 is pre-designed, and one end of every memorial alloy beam body 9 is fixed on an overhanging support horizontal stroke
On the slideway 4 of beam 3, the other end is freely placed in another overhanging support beam 3；So, can guarantee that memorial alloy beam body 9 in side bar
Reciprocated between 8, then rely on the characteristic of the pyrocondensation of memorial alloy beam body 9 and cold expanding to make up the change of abutment heat expansion and shrinkage
Shape, and then seamless purpose is reached, this retractor device substantially reduces the repeated stock effect of wheel load, improves flexible
The service life of device and bridge, reduces the maintenance cost of bridge.
As shown in Figures 1 to 8, a kind of construction technology of automatic seamless marmem retractor device, using above-mentioned
A kind of automatic seamless marmem retractor device, it is comprised the following steps that：
One processes memorial alloy beam body 9, and method is as follows：
1. the two-way shape memory of memorial alloy beam body 9 is designed；
To ensure under the variation of ambient temperature equal to or less than 5 DEG C, the total pyrocondensation amount of multiple memorial alloy beam bodies 9 or
Cold expanding amount is equal to the variable quantity of the preset slot between side bar 8；The scope of variation of ambient temperature on the spot of pre- construction is divided into many etc.
Part, each equal portions are to that should have a memorial alloy beam body 9；Ensure memorial alloy beam body 9 in corresponding equal portions temperature range
With double process shape-memory effect；The cross-sectional width dimensional directions of memorial alloy beam body 9 have pyrocondensation and cold expanding physical characteristic, length
Direction has heat expansion and shrinkage characteristic, and height dimension is constant all the time；
For example：Assuming that variation of ambient temperature scope is -10 DEG C ~ 40 DEG C on the spot, 5 DEG C of variation of ambient temperature of setting can be by
- 10 DEG C of variation of ambient temperature scope ~ 40 DEG C are divided into 10 equal portions on the spot, and each decile is followed successively by -10 DEG C ~ -5 DEG C, -5 DEG C ~ 0 DEG C ...,
30℃~35℃,35℃~40℃.10 beam bodies are needed altogether, and each equal portions are to that should have a memorial alloy beam body, the memory of use
Alloy beam body has double process shape-memory effect (such as, in 30 DEG C ~ 35 DEG C equal portions temperature in corresponding equal portions temperature range
Interior, then when environment temperature is more than 35 DEG C, this root beam body width dimensions will automatically reduce the constant basis of a design, this is permanent
Quantitative build joint variable quantity wide is equal and between two abutments, and otherwise less than 30 DEG C, the width dimensions of beam body will increase automatically
Big same value).
2. machining operation is used under parent phase state to marmem；
Blank of shape memory alloy is processed into the initial Memory Alloy member of uiform section rectangle, its width dimensions is not less than
40mm, height dimension is not less than 50mm, support span of the length dimension not less than adjacent overhanging support beam；
3. 1. designed according to step carries out shape memory treatment to initial Memory Alloy member；
Under uniform temperature environment（It is corresponding be step 1. in design temperature excursion）To in martensitic state
Initial Memory Alloy member carry out thermo-mechanical cycle training；Make initial Memory Alloy member length elongation 2%~8%, broad-ruler
Very little to reduce 2%~8%, height dimension keeps constant；The width of initial Memory Alloy member is not less than 40mm after reduced width；
4. the memorial alloy beam body 9 of double process shape-memory effect is obtained by above-mentioned steps.
When the preset slot width between two adjacent side bars 8 is more than 320mm, the upper surface of memorial alloy beam body 9 is anti-skidding
Treatment.
Two construction and installation, method is as follows：
1. the preformed groove of beam body 1 adjacent to two is cleared up；
2. embedded bar 2, horizontal bar 12 and dowel 11 are installed in the preformed groove of beam body 1；
3. side bar 8 is put into the preformed groove of beam body 1 and is welded with dowel 11；Left between two adjacent side bars 8 reserved
Seam；The width of preset slot be according to environment temperature, memorial alloy beam body 9 on the spot, (such as span length, heat expansion are cold for the physical characteristic of beam body 1
Contracting and creep etc.) build joint is wide and between two beam bodies 1 is designed；Preset slot is wide can not to be waited with build joint is wide；
4. foamed plastics 5 is put into the build joint between the lower section of side bar 8, the preformed groove of two beam body 1；
5. installation form, casting concrete layer 7；
6. adhesive tape 10 is installed between two side bars 8；
7. multiple memorial alloy beam bodies 9 are placed in the preset slot between two side bars 8 successively side by side as central sill, directly
Extremely seam is filled up completely with.
This area designing technique personnel should be understood main thought of the present utility model, although the utility model is to one
What the memorial alloy beam body of square-section was described, but the utility model scope of application is not intended to be limited to this.Citing
For, memorial alloy beam body 9 in Fig. 2 can be designed as the other forms such as I-shaped by those skilled in the art completely, again can be by
It expands to the board-like retractor device of comb, can also be designed into being single seam retractor device structure etc., is had with Fig. 2
Just for the sake of clearly illustrating thinking of the present utility model, this area designing technique personnel should be understood its marrow for the description of body,
As long as being protection domain of the present utility model using the thought that marmem carries out retractor designs.
Flexible working mechanism of the present utility model is：When two beam bodies 1（Abutment）Between build joint and preset slot it is wide because of temperature
Change and become big or become hour, the width of memorial alloy beam body 9 just diminishes or becomes greatly simultaneously, but both variable quantity it is equal,
I.e. the swell increment of one is equal to another stroke, and the feature supplements for then passing through the pyrocondensation of memorial alloy beam body 9 and cold expanding are general
The defect that logical material brings by heat expansion and shrinkage, it is ensured that be always maintained at preset slot seamless flexible.Therefore, it is relatively conventional to stretch
Compression apparatus, the utility model has gap small, or even seamless, easy construction, the low advantage of cost, be after all because
There is the characteristic of pyrocondensation and cold expanding for the extrusome of such retractor device.In sum, tied using new material memorial alloy
Structure is redesigned, then performance, applicability of retractor device etc. is very significantly improved and is improved.
From said structure, the utility model retractor device is by the basis of traditional retractor device, drawing
Originally the retractor device being made up of the extrusome of common material, is changed to shape memory by the advantage of New Shape Memory Alloys material
Alloy components replace, and are had the advantage that in itself by means of marmem (such as Nitinol), i.e. larger restoring force and
The characteristic such as deformation, corrosion resistance higher, intensity higher, preferable plasticity, additionally with fatigue life is long and environment because
The advantages of element influence is small, and then retractor device limitation in the application is greatly reduced, so the extrusome of retractor device is just
Need not be provided by central sill and served as, but achieved the goal simply by Shape Memory Alloy member.Meanwhile, retractor device
Extension and contraction control translate into the treatment of the memory effect of Memory Alloy member, and the treatment of memory effect only need to be according to engineering
Need to carry out Memory Alloy member certain heat-machining operation, so for site operation, its construction technology
Be simple and convenient to operate with equipment, effect it is safe and reliable.As can be seen here, seamless marmem retractor device is not only increased
The security of structure, durability and the scope of application, and it is also manifested by simple its construction technology, reliability, investment and cost expense
Low advantage.
Claims (5)
1. a kind of automatic seamless marmem retractor device, it is characterised in that：Including installed in two adjacent beam bodies（1）On
Stay the side bar in groove（8）；Two side bars（8）Relatively, two side bar（8）Between leave preset slot；Installed in the preset slot
There is multiple to be arranged side by side memorial alloy beam body（9）；In the beam body（1）Both sides be respectively fixed with an overhanging support beam（3）；
In overhanging support beam described in two（3）In one on, be provided with the slideway relative with the preset slot（4）；The memorial alloy
Beam body（9）One end is arranged on an overhanging support beam（3）On slideway（4）On, it is horizontal that the other end rides over another overhanging support
Beam（3）On.
2. a kind of automatic seamless marmem retractor device according to claim 1, it is characterised in that：The memory
Alloy beam body（9）In rectangular shape, multiple memorial alloy beam bodies（9）Two side bars are filled in side by side（8）Between preset slot in.
3. a kind of automatic seamless marmem retractor device according to claim 1, it is characterised in that：The beam body
（1）Staying for end be provided with groove multiple embedded bar holes, beam body（1）Embedded bar hole in embedded bar is installed（2）；It is multiple
The embedded bar（2）Between be connected with horizontal bar（12）；By embedded bar（2）And horizontal bar（12）Connect on the support of composition
It is connected to dowel（11）；The dowel（11）The side bar is fixed in outside（8）；In the beam body（1）Staying in groove for end has been poured
With side bar（8）Concordant concrete layer（7）.
4. a kind of automatic seamless marmem retractor device according to claim 3, it is characterised in that：Described in two
Side bar（8）Between be connected with adhesive tape（10）, adhesive tape（10）Positioned at the memorial alloy beam body（9）Lower section；The memorial alloy
Beam body（9）With two side bars（8）Flush.
5. a kind of automatic seamless marmem retractor device according to claim 4, it is characterised in that：The beam body
（1）It is provided with and concrete layer（7）The pave-load layer for flushing（6）；In two concrete layers（7）Between gap in be filled with foam plastic
Material（5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621309302.8U CN206256373U (en) | 2016-12-01 | 2016-12-01 | A kind of automatic seamless marmem retractor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621309302.8U CN206256373U (en) | 2016-12-01 | 2016-12-01 | A kind of automatic seamless marmem retractor device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206256373U true CN206256373U (en) | 2017-06-16 |
Family
ID=59026703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621309302.8U Expired - Fee Related CN206256373U (en) | 2016-12-01 | 2016-12-01 | A kind of automatic seamless marmem retractor device |
Country Status (1)
| Country | Link |
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| CN (1) | CN206256373U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106381806A (en) * | 2016-12-01 | 2017-02-08 | 徐州工程学院 | Automatic seamless shape memory alloy expanding-retracting device and construction process |
| CN109024262A (en) * | 2018-10-16 | 2018-12-18 | 长安大学 | A kind of modulus type seamless expansion-contraction devices and its construction method |
| CN111794091A (en) * | 2020-07-23 | 2020-10-20 | 刘万杰 | Waterproof and leakproof flexible expansion joint device for bridge |
-
2016
- 2016-12-01 CN CN201621309302.8U patent/CN206256373U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106381806A (en) * | 2016-12-01 | 2017-02-08 | 徐州工程学院 | Automatic seamless shape memory alloy expanding-retracting device and construction process |
| CN106381806B (en) * | 2016-12-01 | 2018-02-23 | 徐州工程学院 | A kind of automatic seamless marmem retractor device and construction technology |
| CN109024262A (en) * | 2018-10-16 | 2018-12-18 | 长安大学 | A kind of modulus type seamless expansion-contraction devices and its construction method |
| CN111794091A (en) * | 2020-07-23 | 2020-10-20 | 刘万杰 | Waterproof and leakproof flexible expansion joint device for bridge |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |