CN102879264A - Clamp for testing interlaminar shear properties of pavement structure - Google Patents
Clamp for testing interlaminar shear properties of pavement structure Download PDFInfo
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- CN102879264A CN102879264A CN2012104247413A CN201210424741A CN102879264A CN 102879264 A CN102879264 A CN 102879264A CN 2012104247413 A CN2012104247413 A CN 2012104247413A CN 201210424741 A CN201210424741 A CN 201210424741A CN 102879264 A CN102879264 A CN 102879264A
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Abstract
The invention relates to a clamp for testing the interlaminar shearing properties of the pavement structure, belonging to the clamp for testing the shearing properties of materials, and aiming to solve the problem of large testing result deviation of the prior method for testing the interlaminar oblique shearing capacity of the pavement structure. Two ends of each fixing bottom plate are respectively provided with a first long hole along the thickness direction of the fixing bottom plate; the bottom surface of a cylinder is fixedly connected with the other end surface of a connector; two ends of each clamping plate are respectively provided with a second long hole along the thickness direction of the clamping plate; the surfaces of the two fixing bottom plates are arranged in parallel up and down; the upper fixing plate is fixedly connected on the upper end of a testing machine through the cylinder, and the lower fixing plate is fixedly connected on the lower end of the testing machine through the cylinder; interlaminar testing samples of the pavement structure are clamped between the fixing bottom plates and the clamping plates and fixedly connect the fixing bottom plates with the clamping plates through the threaded fit of connecting nuts and connecting bolts. The clamp is used for clamping the interlaminar testing samples of the pavement structure.
Description
Technical field
The present invention relates to a kind of pavement structure interlayer test fixture.
Background technology
The shear behavior of pavement structure interlayer is the important technology index of estimating the pavement structure holistic resistant behavior.By shear test can evaluating combined formula road surface, the anti-shear ability of deck installation structure interlayer.Usually adopt at present the method for oblique shear test for the test of pavement structure interlayer shear resistance, at an angle between the shearing force that namely applies and the shear surface of test specimen, put on like this on the anchor clamps external force on the shear surface except producing shear stress, also can produce the normal stress perpendicular to shear surface, because the existence of normal stress, so that anti-shear ability is bigger than normal between the structural sheet that oblique shear test obtains.
Summary of the invention
The present invention for the test that solves present pavement structure interlayer shear resistance adopt the method for oblique shear test cause test result bigger than normal between topic, and then provide a kind of test fixture of pavement structure interlayer cutting performance.
The present invention solves the problems of the technologies described above the technical scheme of taking to be:
A kind of test fixture of pavement structure interlayer cutting performance comprises two fixed heads, two clamping plate, four coupling bolts and four attaching nuts, fixed head comprises fixed base plate, connector and right cylinder, fixed base plate is rectangular parallelepiped, the two ends of each fixed base plate plate face respectively are processed with first slotted hole along the fixed base plate thickness direction, the length direction of the first slotted hole is consistent with the length direction of fixed base plate, one end face of connector fixes as one with the middle part of fixed base plate plate face and the mutually vertical setting of length direction of the length direction of connector and fixed base plate, and the other end of cylindrical bottom surface and connector fixes as one; Clamping plate are rectangular parallelepiped, the two ends of each cleat plate face respectively are processed with second slotted hole along the clamping plate thickness direction, the length direction of the second slotted hole is consistent with the length direction of clamping plate, the fixed base plate plate face of two fixed heads be arranged in parallel up and down, be positioned at top fixed head is fixed in testing machine by right cylinder upper end, be positioned at following fixed head is fixed in testing machine by right cylinder lower end, two clamping plate be arranged in parallel up and down, each coupling bolt passes the first corresponding slotted hole and the second slotted hole setting, pavement structure interlayer specimen clamping and is fastenedly connected fixed head and clamping plate by the threaded engagement of attaching nut and coupling bolt between the fixed base plate and clamping plate of fixed head.
The present invention compared with prior art has following beneficial effect: the fixed base plate plate face of two fixed heads of the present invention and the plate face of clamping plate be arranged in parallel, the perpendicular direction of testing machine shearing force is in the plate face of fixed base plate and clamping plate, can not produce the normal stress perpendicular to pavement structure interlayer sample structure layer shear surface, the shearing force that applies is parallel to the shear surface of pavement structure interlayer sample structure layer fully, thereby can accurately test out the anti-shear ability between the road surface structare layer, overcome and adopted oblique shearing test clamp and cause shearing test result defective bigger than normal; Fixed base plate is processed with the first slotted hole simultaneously, and clamping plate are processed with the second slotted hole, can adjust the pavement structure interlayer sample apart from the clamping different in width between per two bolts.
Description of drawings
Fig. 1 is the front view of fixed head of the present invention, Fig. 2 is the vertical view of Fig. 1, Fig. 3 is the left view of Fig. 1, Fig. 4 is the vertical view of clamping plate of the present invention, Fig. 5 is that the master of the test fixture of a kind of pavement structure interlayer cutting performance of the present invention looks wiring layout, Fig. 6 is the left view of Fig. 5, and Fig. 7 is the fundamental diagram of Fig. 5.
Embodiment
Embodiment one: in conjunction with Fig. 1～Fig. 7 explanation, the test fixture of a kind of pavement structure interlayer cutting performance of present embodiment comprises two fixed heads 1, two clamping plate 2, four coupling bolts 3 and four attaching nuts 4, fixed head 1 comprises fixed base plate 1-1, connector 1-2 and right cylinder 1-3, fixed base plate 1-1 is rectangular parallelepiped, the two ends of each fixed base plate 1-1 plate face respectively are processed with first a slotted hole 1-1-1 along fixed base plate 1-1 thickness direction, the length direction of the first slotted hole 1-1-1 is consistent with the length direction of fixed base plate 1-1, the end face of connector 1-2 fixes as one with the middle part of fixed base plate 1-1 plate face and the mutually vertical setting of length direction of the length direction of connector 1-2 and fixed base plate 1-1, and the other end of the bottom surface of right cylinder 1-3 and connector 1-2 fixes as one; Clamping plate 2 are rectangular parallelepiped, the two ends of each clamping plate 2 plate face respectively are processed with second a slotted hole 2-1 along clamping plate 2 thickness directions, the length direction of the second slotted hole 2-1 is consistent with the length direction of clamping plate 2, the fixed base plate 1-1 plate face of two fixed heads 1 be arranged in parallel up and down, be positioned at top fixed head 1 is fixed in testing machine by right cylinder 1-3 upper end, be positioned at following fixed head 1 is fixed in testing machine by right cylinder 1-3 lower end, two clamping plate 2 be arranged in parallel up and down, each coupling bolt 3 passes the first corresponding slotted hole 1-1-1 and the second slotted hole 2-1 arranges, pavement structure interlayer sample 5 clampings and are fastenedly connected fixed head 1 and clamping plate 2 with the threaded engagement of coupling bolt 3 by attaching nut 4 between the fixed base plate 1-1 and clamping plate 2 of fixed head 1.
Embodiment two: in conjunction with Fig. 1～Fig. 3 explanation, the width W of the first slotted hole 1-1-1 of present embodiment is 10mm.Other compositions are identical with embodiment one with annexation.
Embodiment three: in conjunction with Fig. 4 explanation, the width W of the second slotted hole 2-1 of present embodiment is 10mm.Other compositions are identical with embodiment one or two with annexation.
Principle of work: with pavement structure interlayer sample 5 clampings between fixed head 1 and clamping plate 2, and the threaded engagement of passing through attaching nut 4 and coupling bolt 2 clamps pavement structure interlayer sample 5, testing machine pulling fixed head 1 acts on shearing force on the pavement structure interlayer sample 5, thus the anti-shear ability between the test road surface structare layer.
Claims (3)
1. the test fixture of a pavement structure interlayer cutting performance, described test fixture comprises two fixed heads (1), two clamping plate (2), four coupling bolts (3) and four attaching nuts (4), it is characterized in that: fixed head (1) comprises fixed base plate (1-1), connector (1-2) and right cylinder (1-3), fixed base plate (1-1) is rectangular parallelepiped, the two ends of each fixed base plate (1-1) plate face respectively are processed with first slotted hole (1-1-1) along fixed base plate (1-1) thickness direction, the length direction of the first slotted hole (1-1-1) is consistent with the length direction of fixed base plate (1-1), one end face of connector (1-2) fixes as one with the middle part of fixed base plate (1-1) plate face and the mutually vertical setting of length direction of the length direction of connector (1-2) and fixed base plate (1-1), and the other end of the bottom surface of right cylinder (1-3) and connector (1-2) fixes as one; Clamping plate (2) are rectangular parallelepiped, the two ends of each clamping plate (2) plate face respectively are processed with second slotted hole (2-1) along clamping plate (2) thickness direction, the length direction of the second slotted hole (2-1) is consistent with the length direction of clamping plate (2), fixed base plate (1-1) the plate face of two fixed heads (1) be arranged in parallel up and down, be positioned at top fixed head (1) is fixed in testing machine by right cylinder (1-3) upper end, be positioned at following fixed head (1) is fixed in testing machine by right cylinder (1-3) lower end, two clamping plate (2) be arranged in parallel up and down, each coupling bolt (3) passes corresponding the first slotted hole (1-1-1) and the second slotted hole (2-1) arranges, pavement structure interlayer sample (5) clamping and is fastenedly connected fixed head (1) and clamping plate (2) by the threaded engagement of attaching nut (4) and coupling bolt (3) between the fixed base plate (1-1) and clamping plate (2) of fixed head (1).
2. the test fixture of a kind of pavement structure interlayer cutting performance according to claim 1, it is characterized in that: the width (W) of the first slotted hole (1-1-1) is 10mm.
3. the test fixture of a kind of pavement structure interlayer cutting performance according to claim 1 and 2, it is characterized in that: the width (W) of the second slotted hole (2-1) is 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104247413A CN102879264A (en) | 2012-10-30 | 2012-10-30 | Clamp for testing interlaminar shear properties of pavement structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104247413A CN102879264A (en) | 2012-10-30 | 2012-10-30 | Clamp for testing interlaminar shear properties of pavement structure |
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| CN102879264A true CN102879264A (en) | 2013-01-16 |
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| CN2012104247413A Pending CN102879264A (en) | 2012-10-30 | 2012-10-30 | Clamp for testing interlaminar shear properties of pavement structure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278406A (en) * | 2013-06-14 | 2013-09-04 | 哈尔滨工业大学 | Testing device and testing method for evaluating rutting resistance of asphalt mixture |
| CN104198367A (en) * | 2014-09-12 | 2014-12-10 | 山东大学 | Rotation water flow type anti-washout testing device and testing method thereof for semi-rigid material |
| CN106053245A (en) * | 2016-07-14 | 2016-10-26 | 中国科学院广州能源研究所 | Shearing device for mechanical tests of hydrate-containing sediments |
| CN106996910A (en) * | 2017-03-31 | 2017-08-01 | 长安大学 | A kind of experimental rig and method for testing asphaltaggregate interfacial adhesion |
| CN108344632A (en) * | 2018-01-17 | 2018-07-31 | 北京航空航天大学 | A kind of extremely low modulus composite material interlayer shearing clamp and test method |
| CN108760479A (en) * | 2018-07-06 | 2018-11-06 | 大连理工大学 | A kind of basal plane interlayer direct shear test fixture suitable for compressive load |
Citations (6)
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| JPS62180240A (en) * | 1986-02-04 | 1987-08-07 | Hitachi Chem Co Ltd | Shearing test method for interlayer of laminate plate |
| CA2330431A1 (en) * | 2001-01-08 | 2002-07-08 | Stephen Norman Goodman | In situ shear strength test facility |
| CN201210128Y (en) * | 2008-05-05 | 2009-03-18 | 攀钢集团攀枝花钢铁研究院有限公司 | Combined clamp |
| CN201555758U (en) * | 2009-12-17 | 2010-08-18 | 北京交通大学 | Three-point fretting testing assistive device |
| CN102095680A (en) * | 2010-12-30 | 2011-06-15 | 中交第一公路勘察设计研究院有限公司 | Clamp and method for testing pavement interlayer shear fatigue test piece |
| CN102374365A (en) * | 2010-08-26 | 2012-03-14 | 张方荣 | Shockproof fixing device |
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2012
- 2012-10-30 CN CN2012104247413A patent/CN102879264A/en active Pending
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| JPS62180240A (en) * | 1986-02-04 | 1987-08-07 | Hitachi Chem Co Ltd | Shearing test method for interlayer of laminate plate |
| CA2330431A1 (en) * | 2001-01-08 | 2002-07-08 | Stephen Norman Goodman | In situ shear strength test facility |
| CN201210128Y (en) * | 2008-05-05 | 2009-03-18 | 攀钢集团攀枝花钢铁研究院有限公司 | Combined clamp |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278406A (en) * | 2013-06-14 | 2013-09-04 | 哈尔滨工业大学 | Testing device and testing method for evaluating rutting resistance of asphalt mixture |
| CN104198367A (en) * | 2014-09-12 | 2014-12-10 | 山东大学 | Rotation water flow type anti-washout testing device and testing method thereof for semi-rigid material |
| CN106053245A (en) * | 2016-07-14 | 2016-10-26 | 中国科学院广州能源研究所 | Shearing device for mechanical tests of hydrate-containing sediments |
| CN106996910A (en) * | 2017-03-31 | 2017-08-01 | 长安大学 | A kind of experimental rig and method for testing asphaltaggregate interfacial adhesion |
| CN106996910B (en) * | 2017-03-31 | 2020-02-18 | 长安大学 | Test device and method for testing adhesion of asphalt aggregate interface |
| CN108344632A (en) * | 2018-01-17 | 2018-07-31 | 北京航空航天大学 | A kind of extremely low modulus composite material interlayer shearing clamp and test method |
| CN108760479A (en) * | 2018-07-06 | 2018-11-06 | 大连理工大学 | A kind of basal plane interlayer direct shear test fixture suitable for compressive load |
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Application publication date: 20130116 |