CN105181493A - Steel and concrete interface fatigue test device - Google Patents
Steel and concrete interface fatigue test device Download PDFInfo
- Publication number
- CN105181493A CN105181493A CN201510650886.9A CN201510650886A CN105181493A CN 105181493 A CN105181493 A CN 105181493A CN 201510650886 A CN201510650886 A CN 201510650886A CN 105181493 A CN105181493 A CN 105181493A
- Authority
- CN
- China
- Prior art keywords
- test specimen
- horizontal
- vertical
- gas cylinder
- test
- 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.)
- Granted
Links
Abstract
The invention discloses a steel and concrete interface fatigue test device which is characterized by comprising a control unit, a loading unit, a test piece fixing unit and a test piece, wherein the a test piece fixture (15) and a test piece (11) in the test piece fixing unit are borne by a rolling support (14) and placed on a working platform (7), the rolling support (14) can move along the working platform (7), the outer surface of a test piece steel plate part (112) and a sliding surface of a linear guide rail (10) are attached, and a horizontal pneumatic cylinder (8) is connected with a horizontal load sensor (9) and the linear guide rail (10) sequentially and applies a horizontal force to press the test piece. According to the steel and concrete interface fatigue test device, interface fatigue performances under various target conditions can be accurately tested, and the device is suitable for steel bridge deck pavement structure design, study and engineering detection.
Description
Technical field
The invention belongs to paving steel bridge deck detecting instrument technical field, particularly implement the device of torture test for Steel concrete interface.
Background technology
The composite structure that paving steel bridge deck is made up of single or multiple lift concrete and steel bridge deck, each structural sheet is combined into entirety by binding material, and the mechanical characteristic of interface layer and intensity have important impact to paving structure.Due to the difference of Steel concrete physics, mechanical characteristic, under the repeated action of traffic load, easily there is fatigure failure in steel bridge deck and concrete contact interface, produce the damage such as slippage or shear fracture, therefore the fatigue resistance of this contact interface directly has influence on permanance and the security of paving steel bridge deck, and the fatigue resistance of tested steel and concrete interface is even more important to Practical Project.
The test unit of tested steel and concrete interface mechanical characteristic can not meet user demand completely when carrying out interfacial fatigue and testing both at home and abroad at present.Such as: Chinese patent CN101126691 provides a kind of highway steel bridge beam asphalt concrete pavement layer shear resistant, bending, pulling-resistant tester, but this device is not considered to apply normal stress, and can not the actual work temperature environment of modeling interface.Chinese patent CN103471924 has temperature control and normal stress applies function, but its normal stress in enforcement interface shearing process of the test cannot keep stable, and normal stress is comparatively large on the impact of interface mechanical characteristic, the roller bearing of this device employing simultaneously contacts with test specimen and normal stress will be caused can not to be evenly distributed on interface.Therefore, at consideration stabilization method under the condition of work such as effect of stress and temperature environment, existing test unit can not the accurately fatigue resistance of tested steel and concrete interface and intensity, or cause the deviation of test findings, correctly cannot evaluate performance and the construction effect of bridge deck pavement structure.
Summary of the invention
The object of the invention is to solve and adopt existing Steel concrete interfacial test device when carrying out torture test, normal stress stability and homogeneity cannot be kept, and cannot the problem such as simulated condition environment temperature, a kind of compatible multiple test condition is provided, test figure is accurate, Steel concrete interfacial fatigue test unit easy to use, it can the stress that coexists of modeling interface normal stress and shear stress better, set up the corresponding relation of load and interfacial fatigue characteristic under varying environment condition, and then improve measuring accuracy and the effect of Steel concrete interface fatigue resistance and intensity.
The technical solution realizing the object of the invention is: a kind of Steel concrete interfacial fatigue test unit, it is characterized in that this device comprises: control module, loading unit, test specimen fixed cell and test specimen 11, described control module comprises computing machine 18, horizontal air pressure servo-control system 5, Main Control Tank 19, horizontal load sensor 9, vertical load sensor 2, described loading unit comprises fatigue tester 3, horizontal gas cylinder pressure 8, test specimen pressure head 4, vertical actuator 1, described test specimen fixed cell comprises workbench 7, roller support 14, fixture 15, cover plate 17, vertical steady brace 13, horizontal steady brace 16, fixed transverse rod 20, line slideway 10,
The concrete parts 111 of test specimen 11 is fixed in fixture 15, and the sheet steel sections 112 of test specimen protrudes from outside fixture 15, and described fixture 15 and test specimen 11 are carried by roller support 14 and be placed on workbench 7, and roller support 14 can move along workbench 7.Test specimen light plate and concrete surface of contact are test specimen interface 12, and test specimen interface 12 and roller support 14 edge are in same vertical plane;
Along the normal horizontal direction R of test specimen sheet steel sections 112, set gradually fixed transverse rod 20, 2 horizontal steady braces 16, the fixture 15 of roller support 14 and carrying thereof and test specimen 11, line slideway 10, horizontal load sensor 9, horizontal gas cylinder pressure 8, wherein 2 horizontal steady braces 16 respectively level be placed in roller support 14 both sides, one end is connected with fixed transverse rod 20 is vertical jointly, the other end is fixed on horizontal gas cylinder pressure 8 jointly, the outside surface of test specimen sheet steel sections 112 and the slipping plane of line slideway 10 fit, horizontal gas cylinder pressure 8 successively with horizontal load sensor 9, line slideway 10 connects and applies horizontal force and compressed by test specimen.
Along in workbench 7 vertical direction, cover plate 17 is positioned on test specimen 11, 2 vertical steady braces 13 are placed in fixture 15 both sides respectively, upper end is connected with cover plate 17 simultaneously and clamps test specimen 11, lower end is fixedly connected on workbench 7 simultaneously, test specimen pressure head 4 is vertically placed in directly over test specimen sheet steel sections 112, and overlap with the center line of sheet steel sections 112, test specimen pressure head 4 top is connected with vertical actuator 1, connect vertical actuator 1 by fatigue tester 3 and apply vertical, test specimen pressure head 4 is driven to apply vertical to the sheet steel sections 112 of test specimen, test specimen sheet steel sections 112 is produced relative to concrete parts 111 move down, and produce detrusion, vertical load sensor 2 is installed on vertical force place.
Main Control Tank 19 has been connected the operation control of torture test and the collecting work of test figure with computing machine 18, vertical actuator 1, vertical load sensor 2 respectively by three data lines.Horizontal air pressure servo-control system 5 is connected with horizontal gas cylinder pressure 8 by air hose 6, and controls the size of level monitoring pressure.
The present invention compared with prior art, its remarkable advantage:
1. apply any normal stress of 0-2MPa by horizontal gas cylinder pressure and horizontal air pressure servo-control system at test specimen interface and monitor in real time, cover Steel Bridge Deck and mat formation interface issuable all normal stress situations under Vehicle Load, overcoming existing test unit normal stress in process of the test and can not keep stable deficiency.
2. roller support horizontal direction of the present invention is removable, can make test specimen interface and roller support edge on same vertical plane, and reduce the irregular impact on torture test of Specimen Shape, size, effectively can reduce the discreteness of fatigue test results, improve the reliability of torture test, improve the deficiency of existing test unit.
3. the sheet steel sections of test specimen contacts with the slipper of line slideway and synchronously vertically moves, and eliminates friction force to the impact at interface and ensure that the homogeneity that normal stress applies, overcome the deficiency that existing test unit evenly can not apply normal stress.
4. fixture of the present invention, cover plate, test specimen pressure head, roller support are absolute construction, the shape and size be convenient to for different clamping test pieces are changed fixture, cover plate, test specimen pressure head, the present invention is applied more extensive, and be convenient to change when wearing and tearing appear in fixture, cover plate, test specimen pressure head, roller support.
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of fixture, cover plate, test specimen, line slideway, horizontal load sensor, workbench, horizontal gas cylinder pressure, vertical steady brace, roller support, horizontal steady brace and horizontal fixed cross beam.
Fig. 3 is the structural representation of Steel concrete test specimen, test specimen interface, fixture and roller support.
Fig. 4 is the structural representation that test specimen fixed cell of the present invention is positioned in temperature controlled environment chamber.
Reference numeral and representative ingredient thereof are: the vertical actuator of 1-, 2-vertical load sensor, 3-fatigue tester, 4-test specimen pressure head, the horizontal air pressure servo-control system of 5-, 6-air hose, 7-workbench, 8-horizontal gas cylinder pressure, 9-horizontal load sensor, 10-line slideway, 11-test specimen, the concrete parts of 111-test specimen, the sheet steel sections of 112-test specimen, 12-test specimen interface, the vertical steady brace of 13-, 14-roller support, 15-fixture, the horizontal steady brace of 16-, 17-cover plate, 18-computing machine, 19-Main Control Tank, 20-fixed transverse rod, 21-environmental cabinet.
Embodiment
Embodiment one:
A kind of Steel concrete interfacial fatigue of the present invention test unit, comprise: control module, loading unit, test specimen fixed cell and test specimen 11, described control module comprises computing machine 18, horizontal air pressure servo-control system 5, Main Control Tank 19, horizontal load sensor 9, vertical load sensor 2, described loading unit comprises fatigue tester 3, horizontal gas cylinder pressure 8, test specimen pressure head 4, vertical actuator 1, described test specimen fixed cell comprises workbench 7, roller support 14, fixture 15, cover plate 17, vertical steady brace 13, horizontal steady brace 16, fixed transverse rod 20, line slideway 10,
The concrete parts 111 of test specimen 11 is fixed in fixture 15, and the sheet steel sections 112 of test specimen protrudes from outside fixture 15, and described fixture 15 and test specimen 11 are carried by roller support 14 and be placed on workbench 7, and roller support 14 can move along workbench 7.Test specimen light plate and concrete surface of contact are test specimen interface 12, and test specimen interface 12 and roller support 14 edge are in same vertical plane;
Along the normal horizontal direction R of test specimen sheet steel sections 112, set gradually fixed transverse rod 20, 2 horizontal steady braces 16, the fixture 15 of roller support 14 and carrying thereof and test specimen 11, line slideway 10, horizontal load sensor 9, horizontal gas cylinder pressure 8, wherein 2 horizontal steady braces 16 respectively level be placed in roller support 14 both sides, one end is connected by bolt is vertical with fixed transverse rod 20 jointly, the other end is fixed on horizontal gas cylinder pressure 8 simultaneously, the outside surface of test specimen sheet steel sections 112 and the slipping plane of line slideway 10 fit, horizontal gas cylinder pressure 8 successively with horizontal load sensor 9, line slideway 10 connects and applies horizontal force and compressed by test specimen 11.
Along in workbench 7 vertical direction, cover plate 17 is positioned on test specimen 11, 2 vertical steady braces 13 are placed in fixture 15 both sides respectively, upper end is bolted with cover plate 17 simultaneously and clamps test specimen 11, lower end is fixedly connected on workbench 7 simultaneously, test specimen pressure head 4 lower end is vertically placed in directly over test specimen sheet steel sections 112, and overlap with the center line of sheet steel sections 112, test specimen pressure head 4 upper end is connected with vertical actuator 1, fatigue tester 3 connects vertical actuator 1 and applies vertical, test specimen pressure head 4 is driven to apply vertical to the sheet steel sections 112 of test specimen, test specimen sheet steel sections 112 is produced relative to concrete parts 111 move down, and produce detrusion, vertical load sensor 2 is installed on the junction of fatigue tester 3 and vertical actuator 1.
Main Control Tank 19 has been connected the operation control of torture test and the collecting work of test figure with computing machine 18, vertical actuator 1, vertical load sensor 2 respectively by three data lines.Horizontal air pressure servo-control system 5 is connected with horizontal gas cylinder pressure 8 by air hose 6, controls the size of level monitoring pressure.
Embodiment two:
A kind of Steel concrete interfacial fatigue test unit as shown in Figure 4, compare embodiment one improvements to be, this test unit also comprises a temperature controlled environment chamber 21, test specimen fixed cell can be positioned in temperature controlled environment chamber 21, vertical actuator 1 is through the top board of temperature controlled environment chamber 21, and horizontal gas cylinder pressure 8 is also placed in temperature controlled environment chamber 21.Horizontal air pressure servo-control system 5 is placed in outside temperature controlled environment chamber 21, is connected through temperature controlled environment chamber 21 by air hose 6 with horizontal gas cylinder pressure 8.
Below, the specific implementation process adopting the present invention to carry out the test of Steel concrete interfacial fatigue is illustrated:
1. test prepares
(1), before starting test, the temperature of temperature controlled environment chamber 21 be set to the test temperature of needs and be incubated 4h, temperature-control range the best is-15 ~ 60 DEG C, and accuracy of temperature control the best is ± 0.5 DEG C.
(2) get out Steel concrete composite samples 11, cross sectional dimensions the best of test specimen is (50-200mm) × (50-200mm), and sheet steel sections 112 thickness can be 8-20mm, and concrete parts 111 thickness can be 40-100mm.The concrete parts 111 of test specimen is fixed in fixture 15, the sheet steel sections 112 of test specimen protrudes from outside fixture 15, make test specimen interface 12 and roller support 14 edge on same vertical plane, again cover plate 17 is placed on test specimen 11, adjusting position makes vertical steady brace 13 through hollow threaded bore prefabricated on cover plate 17, to be connected by vertical steady brace 13 and to clamp test specimen 11 by bolt with cover plate 17.Regulating makes test specimen pressure head 4 overlap with the center line of test specimen sheet steel sections 112, the best 1-5mm less of the thickness of test specimen sheet steel sections 112 of thickness of test specimen pressure head 4.
2. process of the test
(1) test after preliminary work terminates, operant level barometric pressure servo-control system 5 makes horizontal gas cylinder pressure 8 apply the dead load of horizontal direction to test specimen 11, the slipping plane of line slideway 10 under horizontal pressure force effect with test specimen 11 close contact; Controlled and the size of level monitoring pressure by horizontal air pressure servo-control system 5, until test specimen interface 12 produces the normal stress needed, normal stress scope the best is 0-2MPa, and to remain in process of the test ± 3% scope in.
(2) fatigue tester 3 and Main Control Tank 19 is started, the alternate load of circulation cycle is set by computing machine 18, make vertical actuator 1 vertically repeatedly be pressed the sheet steel sections 112 of test specimen downwards by pressure head 4, do not produce the mensuration fatigue strength of maximum fatigue stress for Steel concrete interface of shear fracture with test specimen interface 12.Vertical scope the best that fatigue tester 3 applies is 0-100kN, and frequency range the best of fatigue tester 3 load application is 0.01-50Hz, and the shear displacemant scope that test specimen sheet steel sections 112 produces is 0-30mm.
Claims (5)
1. a Steel concrete interfacial fatigue characteristic detection device, it is characterized in that this device comprises: control module, loading unit, test specimen fixed cell and test specimen (11), described control module comprises computing machine (18), horizontal air pressure servo-control system (5), Main Control Tank (19), horizontal load sensor (9), vertical load sensor (2), described loading unit comprises fatigue tester (3), horizontal gas cylinder pressure (8), test specimen pressure head (4), vertical actuator (1), described test specimen fixed cell comprises workbench (7), roller support (14), fixture (15), cover plate (17), vertical steady brace (13), horizontal steady brace (16), fixed transverse rod (20), line slideway (10),
The concrete parts (111) of test specimen (11) is fixed in fixture (15), the sheet steel sections (112) of test specimen protrudes from fixture (15) outward, described fixture (15) and test specimen (11) are carried by roller support (14) and are placed on workbench (7), roller support (14) can be mobile along workbench (7), test specimen light plate and concrete surface of contact are test specimen interface (12), and test specimen interface (12) and roller support (14) edge are in same vertical plane;
Along the normal horizontal direction (R) of test specimen sheet steel sections (112), set gradually fixed transverse rod (20), 2 horizontal steady braces (16), roller support (14), fixture (15), test specimen (11), line slideway (10), horizontal load sensor (9), horizontal gas cylinder pressure (8), wherein 2 horizontal steady braces (16) respectively level be placed in roller support (14) both sides, one end is connected with fixed transverse rod (20) is vertical jointly, the other end is fixed on horizontal gas cylinder pressure (8) jointly, the outside surface of test specimen sheet steel sections (112) and the slipping plane of line slideway (10) fit, horizontal gas cylinder pressure (8) successively with horizontal load sensor (9), line slideway (10) connects and applies horizontal force and compressed by test specimen,
Along in workbench 7 vertical direction, cover plate (17) is positioned on test specimen (11), 2 vertical steady braces (13) are placed in fixture (15) both sides respectively, upper end is connected with cover plate (17) and clamps test specimen (11), lower end is fixedly connected on workbench (7), test specimen pressure head (4) lower end is vertically placed in directly over test specimen sheet steel sections (112), and overlap with the center line of sheet steel sections (112), test specimen pressure head (4) upper end is connected with vertical actuator (1), connect vertical actuator (1) by fatigue tester (3) and apply vertical, test specimen pressure head (4) is driven to apply vertical to the sheet steel sections (112) of test specimen, vertical load sensor (2) is installed on vertical force place,
Horizontal air pressure servo-control system (5) is connected with horizontal gas cylinder pressure (8) by air hose (6), and Main Control Tank (19) is connected with computing machine (18), vertical actuator (1), vertical load sensor (2) respectively by three data lines.
2. Steel concrete interfacial fatigue characteristic detection device as claimed in claim 1, it is characterized in that: also comprise a temperature controlled environment chamber (21), fixed cell and horizontal gas cylinder pressure (8) are positioned in temperature controlled environment chamber (21), vertical actuator (1) is through the top board of temperature controlled environment chamber (21), vertical load sensor (2) is arranged on vertical actuator (1) and fatigue tester (3) junction, horizontal air pressure servo-control system (5) and horizontal gas cylinder pressure (8) is connected through temperature controlled environment chamber (21) by air hose (6), horizontal load sensor (9) is arranged on horizontal gas cylinder pressure (8) and line slideway (10) junction.
3. Steel concrete interfacial fatigue characteristic detection device as claimed in claim 1, is characterized in that: the little 1-5mm of thickness of the Thickness Ratio test specimen sheet steel sections (112) of test specimen pressure head (4).
4. Steel concrete interfacial fatigue test unit according to claim 1, it is characterized in that: it is 0-2MPa that horizontal gas cylinder pressure (8) and horizontal air pressure servo-control system (5) apply horizontal applied force scope, the frequency range that the vertical scope that fatigue tester applies is 0-100kN, fatigue tester applies fatigue load is 0.01-50Hz.
5. Steel concrete interfacial fatigue characteristic detection device as claimed in claim 2, is characterized in that: the temperature controlling range of temperature controlled environment chamber (21) is-15 ~ 60 DEG C, and precision is ± 0.5 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510650886.9A CN105181493B (en) | 2015-10-09 | 2015-10-09 | Steel and concrete interface fatigue experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510650886.9A CN105181493B (en) | 2015-10-09 | 2015-10-09 | Steel and concrete interface fatigue experimental device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105181493A true CN105181493A (en) | 2015-12-23 |
| CN105181493B CN105181493B (en) | 2018-10-02 |
Family
ID=54903729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510650886.9A Expired - Fee Related CN105181493B (en) | 2015-10-09 | 2015-10-09 | Steel and concrete interface fatigue experimental device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105181493B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842093A (en) * | 2016-04-02 | 2016-08-10 | 浙江大学 | Steel-concrete interface shear force connecting piece fatigue performance test apparatus and application method thereof |
| CN108037028A (en) * | 2018-02-05 | 2018-05-15 | 东南大学 | Paving interface shearing-resistance method for testing fatigue and device under a kind of vehicle braking condition |
| CN108760520A (en) * | 2018-07-27 | 2018-11-06 | 山东大学 | A kind of steel applying pressure-concrete push out test loading device and method |
| CN110346209A (en) * | 2019-06-26 | 2019-10-18 | 浙江工业大学 | A kind of micro-electron packaging device boundary strength creep test device |
| CN112540011A (en) * | 2020-11-30 | 2021-03-23 | 西南交通大学 | Asphalt pavement interlayer pressing-shearing coupling shearing equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57136140A (en) * | 1981-02-17 | 1982-08-23 | Mitsubishi Electric Corp | Fatigue testing device in hermetically closed container |
| CN101126691A (en) * | 2007-09-30 | 2008-02-20 | 刘廷国 | Highway steel bridge beam asphalt concrete pavement layer shear-resistant, bending, pulling-resistant tester |
| CN102156097A (en) * | 2010-12-10 | 2011-08-17 | 浙江大学 | Steel-concrete interface shear stress transmission testing device |
| CN102914475A (en) * | 2012-10-17 | 2013-02-06 | 中国矿业大学 | Shear test device for observing mechanical property of interface between underwater soil and structure |
| CN202748276U (en) * | 2012-08-24 | 2013-02-20 | 华南理工大学 | Shearing device for asphalt pavement cylinder test specimen layer |
| CN103471924A (en) * | 2013-09-30 | 2013-12-25 | 东南大学 | Steel bridge floor and pavement interface shear test device |
| CN104406869A (en) * | 2014-12-04 | 2015-03-11 | 北京市道路工程质量监督站 | Method for evaluating repairing effect of steel bridge deck asphalt concrete pavement pit slot repairing interface |
-
2015
- 2015-10-09 CN CN201510650886.9A patent/CN105181493B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57136140A (en) * | 1981-02-17 | 1982-08-23 | Mitsubishi Electric Corp | Fatigue testing device in hermetically closed container |
| CN101126691A (en) * | 2007-09-30 | 2008-02-20 | 刘廷国 | Highway steel bridge beam asphalt concrete pavement layer shear-resistant, bending, pulling-resistant tester |
| CN102156097A (en) * | 2010-12-10 | 2011-08-17 | 浙江大学 | Steel-concrete interface shear stress transmission testing device |
| CN202748276U (en) * | 2012-08-24 | 2013-02-20 | 华南理工大学 | Shearing device for asphalt pavement cylinder test specimen layer |
| CN102914475A (en) * | 2012-10-17 | 2013-02-06 | 中国矿业大学 | Shear test device for observing mechanical property of interface between underwater soil and structure |
| CN103471924A (en) * | 2013-09-30 | 2013-12-25 | 东南大学 | Steel bridge floor and pavement interface shear test device |
| CN104406869A (en) * | 2014-12-04 | 2015-03-11 | 北京市道路工程质量监督站 | Method for evaluating repairing effect of steel bridge deck asphalt concrete pavement pit slot repairing interface |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842093A (en) * | 2016-04-02 | 2016-08-10 | 浙江大学 | Steel-concrete interface shear force connecting piece fatigue performance test apparatus and application method thereof |
| CN105842093B (en) * | 2016-04-02 | 2018-05-22 | 浙江大学 | Steel-concrete interface shear stress Fatigue Behavior of Riveted structure test device and application process |
| CN108037028A (en) * | 2018-02-05 | 2018-05-15 | 东南大学 | Paving interface shearing-resistance method for testing fatigue and device under a kind of vehicle braking condition |
| CN108037028B (en) * | 2018-02-05 | 2020-06-30 | 东南大学 | Method and device for testing shearing resistance and fatigue of pavement interface under vehicle braking condition |
| CN108760520A (en) * | 2018-07-27 | 2018-11-06 | 山东大学 | A kind of steel applying pressure-concrete push out test loading device and method |
| CN110346209A (en) * | 2019-06-26 | 2019-10-18 | 浙江工业大学 | A kind of micro-electron packaging device boundary strength creep test device |
| CN112540011A (en) * | 2020-11-30 | 2021-03-23 | 西南交通大学 | Asphalt pavement interlayer pressing-shearing coupling shearing equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105181493B (en) | 2018-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105181493A (en) | Steel and concrete interface fatigue test device | |
| CN201622210U (en) | Adjustable fretting fatigue tester | |
| CN102183412B (en) | Tension-shear coupling characteristic tester of asphalt concrete material | |
| CN102052935B (en) | Single tower cable-stayed bridge model test system based on damage identification | |
| CN201575958U (en) | Load-shear test machine | |
| CN103439190B (en) | Paving steel bridge deck cracking resistance evaluation experimental device | |
| CN102645380A (en) | Structural timber bend strength tester and structural timber bend strength test method | |
| CN106289745B (en) | Composite material plate spring high/low temperature fatigue and rolling capability testboard bay | |
| Cheng et al. | Fatigue tests of welded connections between longitudinal stringer and deck plate in railway bridge orthotropic steel decks | |
| CN105445119A (en) | Device and method for testing torsion resistance and shear performance of bituminous mixture | |
| CN103630448B (en) | A kind of pavement structure interlayer interface shear strength testing apparatus and method thereof | |
| CN204556382U (en) | A kind of sea ice fail in bending test fixture | |
| CN104237028A (en) | Pavement structure interlayer shear strength tester | |
| CN101216394A (en) | Pull-press loading effect based material three dividing point bending fatigue testing method and tool equipment | |
| GB2585436A (en) | Cylindrical concrete specimen splitting device and splitting method | |
| CN203337452U (en) | Pressured clamp of compression-testing machine | |
| RU148805U1 (en) | PANEL TEST STAND | |
| CN106644759A (en) | Shear fatigue test method for steel bridge asphalt pavement | |
| CN103674711B (en) | A kind of mounted gas cylinder mounting bracket strength testing device | |
| CN110044738B (en) | Fatigue test device with controllable applied multi-axis stress of welding seam and application method thereof | |
| CN202649055U (en) | Wood bending strength detecting equipment for structure | |
| JP4219095B2 (en) | Compression / shear test method and test apparatus | |
| CN205562305U (en) | Variable angle cuts test device to one side | |
| CN206906141U (en) | The test device of bituminous paving interlayer shearing strength | |
| CN103940673A (en) | Longitudinal tensile and compression testing machine for steel rail of railway track |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181002 Termination date: 20211009 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |