CN206818509U - A kind of track plates static load crazing-resistance test frame - Google Patents
A kind of track plates static load crazing-resistance test frame Download PDFInfo
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- CN206818509U CN206818509U CN201720338752.8U CN201720338752U CN206818509U CN 206818509 U CN206818509 U CN 206818509U CN 201720338752 U CN201720338752 U CN 201720338752U CN 206818509 U CN206818509 U CN 206818509U
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Abstract
The utility model discloses a kind of track plates static load crazing-resistance test frame, including base, support frame, stress frame, reaction frame, jack, fixed pedestal, sensor, support frame as described above is vertically placed on the boss of the base, the reaction frame is further fixed on the base, support frame as described above upper end is stress frame, track plates between the stress frame and support frame for that need to test, the track plates upper ends have the jack, the jack upper end is connected with the sensor, the sensor upper end is the fixed pedestal, the sensor upper end is reaction frame, the reaction frame lower end is fixed on the base.The utility model provides powerful guarantee for the type pretensioning prestressed concrete track plates static load crazing-resistance tests of CRTS III, and cost-effective, track plates static load crazing-resistance test frame is simple for production, can voluntarily be process, simple to operate understandable during experiment.
Description
Technical field
Track plates cracking resistance testing field is the utility model is related to, more particularly to a kind of track plates static load crazing-resistance test frame.
Background technology
The type pre-tensioning system track plates of CRTS III use for reference the external non-fragment orbit technology introduced, and summarize domestic non-fragment orbit development
Experience, voluntarily develop, autonomous innovation, there is the non-fragment orbit technology of independent intellectual property right.After its production technology uses pretensioning
The pattern poured, covered in production pedestal and use steam curing, carrying out the demoulding after track plates reach and put Zhang Qiangdu is transported to water
Foster pond carries out no less than 3 days and the outdoor maintenance for being no less than 7 days.
Required according to the plate-type non-fragment orbit pretensioning prestressed concrete rail plate technique conditions of high-speed railway CRTS III,
Track plates should carry out type inspection before putting into serial production.Wherein, track plates static load cracking resistance experiment for its essential items for inspection it
One.Experiment is divided into the static load crazing-resistance test of track plates longitudinal direction and track plates transverse direction static load crazing-resistance test two parts, longitudinal static load cracking resistance
Track plates are supported (two supports by the support frame in the middle part of track plates laterally using two 200mm × 200mm × 2500mm by experiment
Fore-and-aft distance is 1260mm between frame), 4 load test points are arranged above in track plates both ends 2# and 8# tracks, during experiment
Each load test point is loaded onto 20kN force value, it is quiet to stop whether 3min observation track plates have crack；Horizontal static load crazing-resistance test
Longitudinal direction in the middle part of track plates is supported track plates using 200mm × 200mm × 5600mm support frame, at track plates both ends
A load test point is laid every 630mm on the outside of track, altogether 16 load test points, add each load(ing) point during experiment
15kN force value is loaded onto, it is quiet to stop whether 3min observation track plates have crack.
Plate field, should generally using the hydraulic rail plate static load crazing-resistance test machine all-in-one directly bought from each producer at present
Equipment price costly, because track plates static load crazing-resistance test number is less, existing code requirement be before putting into serial production,
Material and technique have during major change, continuous production 2 years when, stop production 6 months and any one situation when the above is resumed production again
Under need to carry out static load crazing-resistance test, according to domestic market, postpartum is hauled oneself willingly into typically less than can produce item in two years in general plate field
The track plates of mesh acceptance of the bid quantity, such as buy expensive equipment, utilization rate is relatively low.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of simple in construction, easy to use, cheap
Track plates static load crazing-resistance test frame.
Technical problem to be solved in the utility model is achieved through the following technical solutions：
A kind of track plates static load crazing-resistance test frame of the present utility model, including base, support frame, stress frame, reaction frame, thousand
Jin top, fixed pedestal, sensor, support frame as described above are vertically placed on the boss of the base, are further fixed on the base
The reaction frame, support frame as described above upper end are stress frame, are the track plates that need to be tested between the stress frame and support frame, described
Track plates upper ends have the jack, and the jack upper end is connected with the sensor, and the sensor upper end is institute
Fixed pedestal is stated, the sensor upper end is reaction frame, and the reaction frame lower end is fixed on the base.
Further, the base top is divided into reinforced concrete structure, and bottom is divided into plain concrete cushion layer, the base
It is interior it is pre-buried be used to fix the ground crab-bolt of the reaction frame, be also associated with the junction steel plate, the connection steel in described ground crab-bolt
Plate is concordant with base top surface.
Further, temporary support steel plate is additionally provided with the base.
Further, support frame as described above includes cross-brace frame, longitudinal bracing frame, is two hot-rolled steel channel butt welding connections
Form.
Further, it is two I-steel butt welding that transverse test, which loads the stress frame, and rubber is lined with track plates contact position
Rubber cushion plate.
Further, it be two I-steel butt welding that longitudinal testing, which loads the stress frame, and lower weld has a steel plate, steel plate and
Track plates track contact surface does 1:40 gradient faces, gradient face are lined with rubber mat plate with track plates track contact position.
Further, the rubber mat plate specification is 150mm × 200mm × 10mm, and the steel plate specification is also 150mm
×200mm×10mm。
Further, the reaction frame is that hot-rolled steel channel is welded with to being welded into " door " font structure, the reaction frame bottom
Steel plate, the reaction frame are fixedly connected on the junction steel plate of the base by base pre-buried ground crab-bolt.
Further, the fixed pedestal is welded on the bottom surface of the reaction frame entablature, is set on the fixed pedestal
There is the built-in screw thread for being connected with sensor.
Further, the sensor is circumscribed with display, and the precision of the sensor is not less than C levels, connects with sensor
For the display minimum division value connect no more than the 1% of loading maximum, the error of indication is ± 1%FS.
By such scheme, the utility model at least has advantages below：
A kind of track plates static load crazing-resistance test frame of the present utility model, it is simple in construction, easy to use, it is that the types of CRTS III are first
Method prestressed concrete railway board static load crazing-resistance test provides powerful guarantee, and using track plates static load crazing-resistance test frame compared with
Less than 6-8 times of the hydraulic rail plate static load crazing-resistance test machine all-in-one of in the market purchase, so as to cost-effective, and this practicality is new
A kind of track plates static load crazing-resistance test frame of type is simple for production, can voluntarily be process, simple to operate understandable during experiment.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of specification, with preferred embodiment of the present utility model and coordinate accompanying drawing detailed below
Describe in detail bright as after.
Brief description of the drawings
Fig. 1 is a kind of front view of track plates static load crazing-resistance test frame of the present utility model；
Fig. 2 is a kind of side view of track plates static load crazing-resistance test frame shown in Fig. 1；
Fig. 3 is a kind of sectional view of the front view III-III of track plates static load crazing-resistance test frame shown in Fig. 1；
Fig. 4 is a kind of sectional view of the front view IV-IV of track plates static load crazing-resistance test frame shown in Fig. 1；
Front view when Fig. 5 is a kind of loading of track plates static load crazing-resistance test frame shown in Fig. 1；
Fig. 6 is a kind of ground anchor bolts schematic diagram of track plates static load crazing-resistance test frame shown in Fig. 1.
1st, base；2nd, support frame；3rd, stress frame；4th, reaction frame；5th, jack；6th, fixed pedestal；7th, sensor；8th, earth anchor
Bolt；9th, junction steel plate；10th, rubber mat plate；11st, steel plate；12nd, steel plate is strengthened；13rd, track plates；14th, temporary support steel plate.
Embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is used to illustrate the utility model, but is not limited to the scope of the utility model.
Referring to shown in Fig. 1-6, a kind of track plates static load crazing-resistance test frame, including base 1, support frame 2, stress frame 3, counter-force
Frame 4, jack 5, fixed pedestal 6, sensor 7, support frame 2 are vertically placed on the boss of base 1, are further fixed on base 1
Reaction frame 4, the upper end of support frame 2 are stress frame 3, are the track plates 13 that need to be tested, track plates 13 between stress frame 3 and support frame 2
Upper ends have a jack 5, and the upper end of jack 5 is connected with sensor 7, and the upper end of sensor 7 is fixed pedestal 6, the upper end of sensor 7
For reaction frame 4, the lower end of reaction frame 4 is fixed on base 1.
The top of base 1 is divided into reinforced concrete structure, and bottom is divided into plain concrete cushion layer, pre-buried in base 1 to be used to fix
The ground crab-bolt 8 of reaction frame 4, junction steel plate 9, junction steel plate 9 and the either flush of base 1 are also associated with ground crab-bolt 8.
Temporary support steel plate 14 is additionally provided with base 1.
Support frame 2 includes cross-brace frame, longitudinal bracing frame, is that two hot-rolled steel channel butt welding are formed by connecting.
The stress frame 3 of transverse test loading is two I-steel butt welding, and rubber mat plate 10 is lined with the contact position of track plates 13.
The stress frame 3 of longitudinal testing loading is also two I-steel butt welding, and lower weld has steel plate 11, steel plate 11 and rail
The track contact surface of guidance tape 13 does 1:40 gradient faces, gradient face are lined with rubber mat plate 10 with the track contact position of track plates 13.
The specification of rubber mat plate 10 is 150mm × 200mm × 10mm, and the specification of steel plate 11 is also 150mm × 200mm × 10mm.
Reaction frame 4 is that hot-rolled steel channel is welded with reinforcement steel plate 12, counter-force to being welded into " door " font structure, the bottom of reaction frame 4
Reinforcement steel plate 12 on frame 4 is fixedly connected on the junction steel plate 9 of base 1 by the pre-buried ground crab-bolt 8 of base 1.
Fixed pedestal 6 is welded on the bottom surface of the entablature of reaction frame 4, is provided with fixed pedestal 6 for being connected with sensor 7
Built-in screw thread.
Sensor 7 is circumscribed with display, and the precision of sensor 7 is not less than C levels, minimum point of the display being connected with sensor
For angle value no more than the 1% of loading maximum, the error of indication is ± 1%FS.
A kind of track plates static load crazing-resistance test frame of the present utility model, when in use, every piece of track plates 13 need to be entered respectively
2 lateral cross sections of row and 1 longitudinal cross-section carry out cracking test, wherein, it is as follows the step of horizontal load test：
A, 4 reaction frames on the basis of being arranged on are removed.
B, basis draws position on testing stand and carries out putting support frame 2, support frame 2 and concrete pier on concrete boss
Contact surface, support frame 2 and the contact surface of track plates 13 put rubber strip.
C, using straddle truck handling track plates 13 to static load crazing-resistance test area, the support frame drawn according to the side of track plates 13
2 positions put track plates 13 on the support frame 2 of static test bed, and now, track plates 13 should be in static test bed holding side
Just.
D, the upper surface of track plates 13 is rubbed using rag it is clean, using after the uniform brushing alcohol of brush with there is illumination functions
10 times of magnifying glasses carry out visual examination in the upper surface of track plates 13 and two sides, and crackle, defect to discovery use marking pen
It is marked.
Reaction frame 4, sensor 7, rubber mat plate 10, stress frame 3, jack 5 are installed successively E,.
F, jack should be checked track plates bearing state again before loading, started longitudinal testing after confirmation and added
Carry, 4 each load(ing) points of jack are preferably synchronized during loading, synchronously reach same payload values, and loading velocity should be uniform, and single-point loads
Speed is not more than 0.5kN/s.
G, loading rank is divided into 6 grades, quiet after loading in place per rank to stop 10s.
H, it is loaded onto after examining payload values, stable 3min, observes tensile region with magnifying glass, crack situation is observed, by management
Side station witness, and keep a record.
The step of longitudinal load test and horizontal load test step are similar, only need to again should in jack before loading
Track plates bearing state is checked, starts transverse test loading after confirmation, 8 each load(ing) points of jack are preferably same during loading
Speed, synchronously reach same payload values.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of specification, with preferred embodiment of the present utility model and coordinate accompanying drawing detailed below
Describe in detail bright as after.
It the above is only preferred embodiment of the present utility model, be not limited to the utility model, it is noted that for
For those skilled in the art, on the premise of the utility model technical principle is not departed from, if can also make
Dry improvement and modification, these improvement and modification also should be regarded as the scope of protection of the utility model.
Claims (10)
1. a kind of track plates static load crazing-resistance test frame, it is characterised in that including base (1), support frame (2), stress frame (3), anti-
Power frame (4), jack (5), fixed pedestal (6), sensor (7), support frame as described above (2) are vertically placed on the base (1)
On boss, the reaction frame (4) is further fixed on the base (1), support frame as described above (2) upper end is stress frame (3), it is described by
There is the jack between power frame (3) and support frame (2) for the track plates (13) that need to be tested, track plates (13) upper ends
(5), jack (5) upper end is connected with the sensor (7), and sensor (7) upper end is the fixed pedestal (6),
Sensor (7) upper end is reaction frame (4), and reaction frame (4) lower end is fixed on the base (1).
A kind of 2. track plates static load crazing-resistance test frame according to claim 1, it is characterised in that base (1) top
It is divided into reinforced concrete structure, bottom is divided into plain concrete cushion layer, pre-buried in the base (1) to be used to fix the reaction frame
(4) ground crab-bolt (8), junction steel plate (9) is also associated with described ground crab-bolt (8), and the junction steel plate (9) is pushed up with base (1)
Face is concordant.
3. a kind of track plates static load crazing-resistance test frame according to claim 2, it is characterised in that on the base (1) also
It is provided with temporary support steel plate (14).
4. a kind of track plates static load crazing-resistance test frame according to claim 1, it is characterised in that support frame as described above (2) wraps
Cross-brace frame, longitudinal bracing frame are included, is that two hot-rolled steel channel butt welding are formed by connecting.
A kind of 5. track plates static load crazing-resistance test frame according to claim 1, it is characterised in that the institute of transverse test loading
It is two I-steel butt welding to state stress frame (3), and rubber mat plate (10) is lined with the track plates (13) contact position.
A kind of 6. track plates static load crazing-resistance test frame according to claim 1, it is characterised in that the institute of longitudinal testing loading
It is also two I-steel butt welding to state stress frame (3), and lower weld has steel plate (11), the steel plate (11) and track plates (13) support rail
Platform contact surface does 1:40 gradient faces, gradient face are lined with rubber mat plate (10) with track plates (13) track contact position.
A kind of 7. track plates static load crazing-resistance test frame according to claim 6, it is characterised in that the rubber mat plate (10)
Specification is 150mm × 200mm × 10mm, and steel plate (11) specification is also 150mm × 200mm × 10mm.
8. a kind of track plates static load crazing-resistance test frame according to claim 2, it is characterised in that the reaction frame (4) is
For hot-rolled steel channel to being welded into " door " font structure, reaction frame (4) bottom, which is welded with, strengthens steel plate (12), the reaction frame (4)
On reinforcement steel plate (12) be fixedly connected on by base (1) pre-buried ground crab-bolt (8) on the junction steel plate (9) of the base (1).
A kind of 9. track plates static load crazing-resistance test frame according to claim 1, it is characterised in that the fixed pedestal (6)
The bottom surface of the reaction frame (4) entablature is welded on, is provided with the fixed pedestal (6) and is used for what is be connected with sensor (7)
Built-in screw thread.
10. a kind of track plates static load crazing-resistance test frame according to claim 1, it is characterised in that the sensor (7) is outside
Display is connected to, the precision of the sensor (7) is not less than C levels, and the display minimum division value being connected with sensor is not more than
The 1% of maximum is loaded, the error of indication is ± 1%FS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720338752.8U CN206818509U (en) | 2017-03-31 | 2017-03-31 | A kind of track plates static load crazing-resistance test frame |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720338752.8U CN206818509U (en) | 2017-03-31 | 2017-03-31 | A kind of track plates static load crazing-resistance test frame |
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| CN206818509U true CN206818509U (en) | 2017-12-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116380663A (en) * | 2023-04-14 | 2023-07-04 | 同济大学 | Rail plate fatigue damage research test device and evaluation method |
-
2017
- 2017-03-31 CN CN201720338752.8U patent/CN206818509U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116380663A (en) * | 2023-04-14 | 2023-07-04 | 同济大学 | Rail plate fatigue damage research test device and evaluation method |
| CN116380663B (en) * | 2023-04-14 | 2024-03-15 | 同济大学 | Rail plate fatigue damage research test device and evaluation method |
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