CN207180743U - Simulate the real chi test platform of non-fragment orbit temperature stress effect - Google Patents
Simulate the real chi test platform of non-fragment orbit temperature stress effect Download PDFInfo
- Publication number
- CN207180743U CN207180743U CN201720711132.4U CN201720711132U CN207180743U CN 207180743 U CN207180743 U CN 207180743U CN 201720711132 U CN201720711132 U CN 201720711132U CN 207180743 U CN207180743 U CN 207180743U
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- Prior art keywords
- testing
- track plates
- test platform
- fragment orbit
- testing stand
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of real chi test platform for simulating the effect of non-fragment orbit temperature stress.Test platform includes testing bed, testing stand, " film of two cloth two " sliding layer, bedplate, track plates, screed；" film of two cloth two " sliding layer, bedplate, screed and track plates are successively set on the bottom surface of testing bed, testing stand from bottom to up.The real chi test platform of simulation non-fragment orbit temperature stress effect provided by the utility model has the advantages that：It disclosure satisfy that ballastless track structure applies the requirement for drawing, pressing load, so as to analog temperature load effect, and the strength and stiffness with certain safety margin.It is reasonable in design, different working condition tests can be simulated.
Description
Technical field
The utility model belongs to ballastless track structure modelling technique field, and non-fragment orbit is simulated more particularly, to one kind
The real chi test platform of temperature stress effect.
Background technology
With the quick stable development of China Express Railway, non-fragment orbit is so that its structural stability is good, durability is strong, maintenance
Maintenance load is small to be used widely with outstanding features such as long lifespans in China.Due to temperature on ballastless track structure influence compared with
Greatly, one of major design and construction loads of non-fragment orbit have been increasingly becoming therefore.Influenceed in recent years by temperature load, no tiny fragments of stone, coal, etc.
The disease of track structure takes place frequently, and causes maintenance workload to increase, it is therefore desirable to finds point of the temperature inside non-fragment orbit
Cloth rule simultaneously studies influence of the temperature load to track structure.But still lack such device at present.
The content of the invention
In order to solve the above problems, the purpose of this utility model is to provide a kind of simulation non-fragment orbit temperature stress effect
Real chi test platform.
In order to achieve the above object, the real chi experiment of simulation non-fragment orbit temperature stress effect provided by the utility model is flat
Platform includes testing bed, testing stand, " film of two cloth two " sliding layer, bedplate, track plates, screed；
Wherein testing bed, testing stand is cast-in-situ steel reinforced concrete rectangular channel, and middle part is provided with vertical terminal spine to constrain vertical change
Shape, and strain, temperature, displacement transducer are embedded with multiple horizontal sections, internal one end is and bedplate and track plates one
The connected fixation loading end in end, the other end are mobile loading end, and one is provided with the width direction on the medial surface of mobile loading end
Concrete pressure reaction plate, while it is respectively equipped with a concrete pulling force counter-force on the two sides inner surface of mobile loading end
Plate, the position between concrete pressure reaction plate and concrete pulling force reaction plate are used to set loading device；
" film of two cloth two " sliding layer is laid in testing bed, testing stand between concrete pulling force reaction plate and fixed loading end
Bottom surface on, by the polypropene staple geotextiles positioned at top layer and bottom and positioned at middle two layers of high density polyethylene (HDPE) soil
Work film is formed, and adjacent interlayer scribbles lubricant；
Bedplate is monolithic reinforced concrete structure, is placed on the surface of " film of two cloth two " sliding layer, both ends respectively with examination
The fixation loading end tested on pedestal is connected with loading device by reinforcing bar；
Track plates are precast reinforced concrete structure, and polylith track plates are laid on bedplate laterally side by side along testing bed, testing stand
On, the seam crossing between adjacent orbit plate is connected using finish rolling deformed bar, and width seam crossing utilizes cast-in-place concrete side
Formula is handled, at the same positioned at both ends track plates outside left respectively with the fixation loading end and loading device on testing bed, testing stand
It is connected by reinforcing bar；
Screed is the asphalt mortar, bituminous mortar by being irrigated from the mortar injection hole on track plates between bedplate and track plates
Solidify and formed.
The length of described testing bed, testing stand × a width of 45m*12.5m.
The width of described " film of two cloth two " sliding layer is 6.8m, length 32.45m；The polypropylene of top layer and bottom is short
Fiber earthwork cloth is respectively quantitatively 400g/m2And 200g/m2, the thickness of middle two layers of high-density polyethylene geomembrane is
1.0mm。
Be embedded with temperature and strain transducer in multiple horizontal sections of described track plates, outer surface post strain gauge and
Displacement meter.
The thickness of described screed is 2-4cm.
The real chi test platform of simulation non-fragment orbit temperature stress effect provided by the utility model has following beneficial to effect
Fruit：It disclosure satisfy that ballastless track structure applies the requirement for drawing, pressing load, so as to analog temperature load effect, and there is a Dingan County
The strength and stiffness laid in entirely.It is reasonable in design, different working condition tests can be simulated.
Brief description of the drawings
Fig. 1 is testing bed, testing stand in the real chi test platform that simulation non-fragment orbit temperature stress provided by the utility model acts on
Structure top view.
Fig. 2 is that the real chi test platform structure of simulation non-fragment orbit temperature stress effect provided by the utility model is laterally cutd open
View.
Embodiment
Below in conjunction with the accompanying drawings with specific embodiment to simulation non-fragment orbit temperature stress effect provided by the utility model
Real chi test platform is described in detail.
As shown in Figure 1 and Figure 2, the real chi test platform of simulation non-fragment orbit temperature stress effect provided by the utility model
Including testing bed, testing stand 1, " film of two cloth two " sliding layer 2, bedplate 3, track plates 4, screed 5；
Wherein testing bed, testing stand 1 is cast-in-situ steel reinforced concrete rectangular channel, and middle part is provided with vertical terminal spine to constrain vertical change
Shape, and strain, temperature, displacement transducer are embedded with multiple horizontal sections, testing bed, testing stand 1 during being tested for measurement
Deformation, internal one end are the fixation loading end being connected with bedplate 3 and the one end of track plates 4, and the other end is mobile loading end, mobile
A concrete pressure reaction plate 6 is provided with the medial surface of loading end in the width direction, while close to the both sides of mobile loading end
A concrete pulling force reaction plate 7, concrete pressure reaction plate 6 and concrete pulling force reaction plate 7 are respectively equipped with the inner surface of face
Between position be used for loading device is set；
" film of two cloth two " sliding layer 2 be laid in testing bed, testing stand 1 positioned at concrete pulling force reaction plate 7 and fixed loading end it
Between bottom surface on, by the polypropene staple geotextiles positioned at top layer and bottom and positioned at middle two layers of high density polyethylene (HDPE)
Geomembrane is formed, and adjacent interlayer scribbles lubricant；
Bedplate 3 is monolithic reinforced concrete structure, is placed on the surface of " film of two cloth two " sliding layer 2, both ends respectively with
Fixation loading end on testing bed, testing stand 1 is connected with loading device by reinforcing bar；
Track plates 4 are precast reinforced concrete structure, and polylith track plates 4 are laid on base laterally side by side along testing bed, testing stand 1
On plate 3, the seam crossing between adjacent orbit plate 4 is connected using finish rolling deformed bar, and width seam crossing utilizes cast-in-place coagulation
Cubic metre of earth formula is handled, at the same positioned at both ends the outside left of track plates 4 respectively with the fixation loading end on testing bed, testing stand 1 and plus
Carry to put and be connected by reinforcing bar；
Screed 5 is the pitch by being irrigated from the mortar injection hole on track plates 4 between bedplate 3 and track plates 4
Mortar solidifies and formed.
The length of described testing bed, testing stand 1 × a width of 45m*12.5m.
The width of described " film of two cloth two " sliding layer 2 is 6.8m, length 32.45m；The polypropylene of top layer and bottom is short
Fiber earthwork cloth is respectively quantitatively 400g/m2And 200g/m2, the thickness of middle two layers of high-density polyethylene geomembrane is
1.0mm。
Temperature and strain transducer are embedded with multiple horizontal sections of described track plates 4, strain gauge is posted in outer surface
And displacement meter.
The thickness of described screed 5 is 2-4cm.
Now the real chi by simulation non-fragment orbit temperature stress effect provided by the utility model tries
The construction method for testing platform is described below：
1) testing bed, testing stand 1 is made：Banding steel cage first, and the reserved steel bar at fixed loading end, break in multiple transverse directions
Strain, temperature, displacement transducer are buried in face, considers non-fragment orbit under the compression operating mode that heats up, testing bed, testing stand 1 can produce additional
Moment of flexure effect, therefore in the middle part vertical terminal spine of setting to constrain vertical deformation, then supporting module, casting concrete are simultaneously supported
Protect, a concrete pressure reaction plate 6 be provided with the width direction on the medial surface of the mobile loading end of manufactured testing bed, testing stand 1,
Simultaneously a concrete pulling force reaction plate 7 is respectively equipped with the two sides inner surface of mobile loading end；
2) " film of two cloth two " sliding layer 2 is laid：Positioned at concrete pulling power reaction plate 7 and admittedly on the bottom surface of testing bed, testing stand 1
Determine the position between loading end and lay bottom polypropene staple geotextiles, middle two hdpe layers successively from bottom to up
Geomembrane and top layer polypropene staple geotextiles, adjacent interlayer smear lubricant, to reduce experiment non-fragment orbit and examination
The frictional force tested between pedestal 1, experiment non-fragment orbit is set to turn into a relatively independent system；
3) bedplate 3 is made：Bedplate bed die, the then colligation on bed die are set on " film of two cloth two " sliding layer 2
Steel reinforcement cage, and one end of steel reinforcement cage is connected with fixing the reserved steel bar of loading end bottom on testing bed, testing stand 1, in steel reinforcement cage
The reserved reinforcing bar being connected with loading device of the other end, temperature and strain transducer are buried in multiple horizontal sections, installs side form,
Casting concrete simultaneously conserves, finally in outer surface mount strain gauge and displacement meter；
4) track plates 4 are made：A fulcrum is placed respectively on bedplate 3 below at every piece of bottom surface corner of track plates 4,
Then polylith track plates 4 are laid on bedplate 3 laterally side by side along testing bed, testing stand 1, the track plates 4 in the utility model are spread altogether
If 5 pieces, 4 plate stitch, wherein expose reinforcing bar by being cut in advance positioned at the concrete of the two of outer end pieces of outside lefts of track plates 4,
Afterwards the interior reinforcing bar of loading end will be fixed with fixing the pre- of loading end top on testing bed, testing stand 1 close to testing bed, testing stand 1 on track plates 4
Reinforcing bar is stayed to be connected, the reinforcing bar of the other end is used to loading device be connected when testing；Then at the middle part two of every piece of track plates 4
A fulcrum is wedged in position between side and bedplate 3 respectively, carries out edge sealing with edging material after leveling, uses pressing device
Compress；
5) screed 5 is made：Filled from the mortar injection hole on track plates 4 into the space between track plates 4 and bedplate 3
Note asphalt mortar, bituminous mortar and form screed 5, treat to remove pressing device after the completion of mortar expansion amount, treat that the compression strength of screed 5 reaches
To after 3MPa, edging material is removed, irrigates mortar joint and horizontal narrow slit concrete afterwards；Treat that mortar strength is more than 9MPa, mix
Coagulate after native intensity reaches 20MPa, the finish rolling deformed bar adjacent orbit plate 4 is symmetrically applied by code requirement stubborn, complete vertical
Even, concreting then is carried out to laterally wide seam, experiment non-fragment orbit is formed by bedplate 3, track plates 4 and screed 5,
Thus the work progress of whole real chi test platform is completed.
Before experiment, loading device is fixed in testing bed, testing stand 1 anti-positioned at concrete pressure reaction plate 6 and concrete pulling force
Position between power plate 7, and by the reserved steel bar of mobile loading end passes through on testing bed, testing stand 1 on bedplate 3 and track plates 4
Horizontal anchor bar is connected with loading device, and carries out the concreting of junction, with realize loading device and bedplate 3 and
The cooperative bearing of track plates 4, and ensure to connect reliably between three, at this moment can starts with loading device to above-mentioned manufactured
Experiment carries out simulating respectively the tensile compression test of non-fragment orbit temperature stress effect with non-fragment orbit.
In addition, six displacement observation stakes can be respectively arranged in the surrounding of whole test platform, as test platform longitudinal direction position
Change benchmark is moved, for deriving the accurate deformation of whole ballastless track structure.
Claims (5)
- A kind of 1. real chi test platform for simulating the effect of non-fragment orbit temperature stress, it is characterised in that：Described real chi experiment is flat Platform includes testing bed, testing stand (1), " film of two cloth two " sliding layer (2), bedplate (3), track plates (4), screed (5)；Wherein testing bed, testing stand (1) is cast-in-situ steel reinforced concrete rectangular channel, and middle part is provided with vertical terminal spine to constrain vertical deformation, And strain, temperature, displacement transducer are embedded with multiple horizontal sections, internal one end is and bedplate (3) and track plates (4) The connected fixation loading end in one end, the other end are mobile loading end, and one is provided with the width direction on the medial surface of mobile loading end Individual concrete pressure reaction plate (6), while it is respectively equipped with a concrete pulling on the two sides inner surface of mobile loading end Power reaction plate (7), the position between concrete pressure reaction plate (6) and concrete pulling force reaction plate (7) are used to set loading dress Put；" film of two cloth two " sliding layer (2) is laid in testing bed, testing stand (1) positioned at concrete pulling force reaction plate (7) and fixed loading end Between bottom surface on, by the polypropene staple geotextiles positioned at top layer and bottom and positioned at middle two layers of high-density polyethylene Alkene geomembrane is formed, and adjacent interlayer scribbles lubricant；Bedplate (3) is monolithic reinforced concrete structure, is placed on the surface of " film of two cloth two " sliding layer (2), both ends respectively with Fixation loading end on testing bed, testing stand (1) is connected with loading device by reinforcing bar；Track plates (4) are precast reinforced concrete structure, and polylith track plates (4) are laid on bottom laterally side by side along testing bed, testing stand (1) On seat board (3), the seam crossing between adjacent orbit plate (4) is connected using finish rolling deformed bar, and width seam crossing is using existing Pouring concrete mode is handled, at the same positioned at both ends track plates (4) outside left respectively with the fixation on testing bed, testing stand (1) Loading end is connected with loading device by reinforcing bar；Screed (5) is located between bedplate (3) and track plates (4), is by being irrigated from the mortar injection hole on track plates (4) Asphalt mortar, bituminous mortar solidifies and formed.
- 2. the real chi test platform of simulation non-fragment orbit temperature stress effect according to claim 1, it is characterised in that：Institute Length × a width of the 45m*12.5m for the testing bed, testing stand (1) stated.
- 3. the real chi test platform of simulation non-fragment orbit temperature stress effect according to claim 1, it is characterised in that：Institute The width of " film of the two cloth two " sliding layer (2) stated is 6.8m, length 32.45m；The polypropene staple of top layer and bottom geotechnique Cloth is respectively quantitatively 400g/m2And 200g/m2, the thickness of middle two layers high-density polyethylene geomembrane is 1.0mm.
- 4. the real chi test platform of simulation non-fragment orbit temperature stress effect according to claim 1, it is characterised in that：Institute Temperature and strain transducer are embedded with the multiple horizontal sections for the track plates (4) stated, strain gauge and displacement meter are posted in outer surface.
- 5. the real chi test platform of simulation non-fragment orbit temperature stress effect according to claim 1, it is characterised in that：Institute The thickness for the screed (5) stated is 2-4cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720711132.4U CN207180743U (en) | 2017-06-19 | 2017-06-19 | Simulate the real chi test platform of non-fragment orbit temperature stress effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720711132.4U CN207180743U (en) | 2017-06-19 | 2017-06-19 | Simulate the real chi test platform of non-fragment orbit temperature stress effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207180743U true CN207180743U (en) | 2018-04-03 |
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ID=61734942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720711132.4U Withdrawn - After Issue CN207180743U (en) | 2017-06-19 | 2017-06-19 | Simulate the real chi test platform of non-fragment orbit temperature stress effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207180743U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101674A (en) * | 2017-06-19 | 2017-08-29 | 中铁六局集团有限公司 | Simulate the real chi test platform and construction method of non-fragment orbit temperature stress effect |
-
2017
- 2017-06-19 CN CN201720711132.4U patent/CN207180743U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101674A (en) * | 2017-06-19 | 2017-08-29 | 中铁六局集团有限公司 | Simulate the real chi test platform and construction method of non-fragment orbit temperature stress effect |
| CN107101674B (en) * | 2017-06-19 | 2023-08-04 | 中铁六局集团有限公司 | Real-scale test platform for simulating temperature stress effect of ballastless track and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180403 Effective date of abandoning: 20230804 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180403 Effective date of abandoning: 20230804 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |