CN203011784U - Equipment for detecting shearing strength between inner layers of asphalt concrete layers - Google Patents
Equipment for detecting shearing strength between inner layers of asphalt concrete layers Download PDFInfo
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- CN203011784U CN203011784U CN201320001093.0U CN201320001093U CN203011784U CN 203011784 U CN203011784 U CN 203011784U CN 201320001093 U CN201320001093 U CN 201320001093U CN 203011784 U CN203011784 U CN 203011784U
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- asphalt concrete
- shearing strength
- inter
- checkout equipment
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- 238000010008 shearing Methods 0.000 title claims abstract description 21
- 239000011384 asphalt concrete Substances 0.000 title claims abstract description 14
- 238000012360 testing method Methods 0.000 claims abstract description 26
- 239000010410 layer Substances 0.000 claims description 13
- 239000011229 interlayer Substances 0.000 claims description 12
- 239000004567 concrete Substances 0.000 abstract description 11
- 238000005056 compaction Methods 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a device for detecting the shearing strength between the inner layers of asphalt concrete layers, which comprises a base and a pair of vertical splints which are used for clamping a test piece and are composed of a front sliding plate and a rear sliding plate, wherein the base is composed of a front vertical plate and a rear vertical plate which are fixed on a bottom plate, and an upper pair of horizontal sliding rods and a lower pair of horizontal sliding rods are connected between the front vertical plate and the rear vertical plate; clamping grooves are respectively arranged on the opposite clamping surfaces of the front vertical plate and the rear vertical plate, and the test piece is clamped in the two opposite clamping grooves; the back surface of the rear sliding plate is connected with a rear vertical plate through 2-4 vertical slideways and can vertically slide under vertical pressure; the front sliding plate is connected with the upper and lower pairs of horizontal sliding rods and can generate horizontal displacement along the sliding rods under the action of horizontal pushing pressure. This equipment is through the tight compaction test piece of horizontal clamp, then vertically applies the load, makes the bituminous concrete piece test piece receive the shearing force and produce the removal deformation of inside aggregate structure, carries out curve fitting through loading force and deflection, evaluates the shear behavior of road structure, test easy operation, and data are accurate.
Description
Technical field
The utility model belongs to mechanical field, relates to a kind of checkout equipment for the experiment on Shearing Resistance of interlayer in the asphalt concrete structure layer.
Background technology
Vehicular load shear failure is a kind of main reason that causes road surface cracking and breakage, in the past due to many-sided reasons such as experimental technique and testing equipments, test for the pavement structure shear behavior does not have clear and definite requirement, carries out shear test between asphalt and supercrust without suitable test tool yet.
Summary of the invention
The utility model purpose is to provide the checkout equipment of interlayer shearing strength in a kind of layer of bituminous concrete, can be accurately and efficiently in asphalt concrete layer or a shear behavior carry out detecting and assessing.
This checkout equipment comprises a pair of vertical clamping plate that are comprised of front slide and tail skid of base and clamping test pieces, and described base is comprised of forward and backward two risers that are fixed on base plate, is connected with upper and lower two pairs of horizontal sliding bars between front riser and rear riser; Described front riser and rear riser are respectively equipped with holding tank on relative clamping face each other, and test specimen is clamped in two relative holding tanks; The described tail skid back side is connected with the rear riser of base with 2 ~ 4 parallel vertical slideways and can be subjected to vertical pressure to produce vertical the slip; Described front slide is connected and can be subjected to horizontal pushing pressure power to produce horizontal shift along slide bar with upper and lower two pairs of horizontal sliding bars.
Described front slide is by trepanning and the collar and the socket of each horizontal sliding bar.
Each vertical slideway of each collar of front slide and tail skid all is equipped with linear bearing.
The front riser of described base connect one can be by rotation the horizontal screw bolt of forward and back, can conflict front slide and the front slide that then applies pressure to of the termination of horizontal screw bolt makes it produce horizontal shift.
The termination of described horizontal screw bolt offsets by cushion block and front slide.
The other end of described horizontal screw bolt is equipped with rotary handle.
Described holding tank is square groove or circular trough.
Described tail skid is equipped with the strain gauge that is connected with horizontal screw bolt.
This checkout equipment is with the vertical clamping plate clamping bituminous concrete piece test specimen of a pair of trough of belt, apply pressure to the clamping test specimen by level, then apply constant load or cyclic load by vertical direction, make the bituminous concrete piece test specimen that is clipped in two grooves be subjected to the effect of shearing force, and produce the movement and deformation of inner aggregate structure, record deformation under different shearing force levels by strain gauge, carry out curve fitting by loading force and deflection, the shear behavior of evaluation path structure.This testing of equipment is simple to operate, and test data is accurate.
Description of drawings
Fig. 1 is the checkout equipment perspective view of interlayer shearing strength in asphalt concrete layer.
In figure, 1-front riser, 2-front slide, 3-trough rim frame, 4-slide bar, 5-strain gauge, 6-loading post, 7-plectane, 8-ladder type force transmitting board, 9-tail skid, 10-rear riser, 11-trough rim frame, 12-holding tank, 13-base plate, 14-screw rod, 15-handle.
Embodiment
Carry out the operating process of cut resistance test below in conjunction with Fig. 1 square shaped concrete block test specimen.Loading post 6 in Fig. 1, plectane 7 and ladder type force transmitting board 8 are the pressure transmission parts that are connected as a single entity.
Front slide 2 and the tail skid 9 vertical clamping plate that partner are respectively equipped with holding tank on two vertical clamping plate opposite faces, and the holding tank 12 of tail skid 9 is surrounded by trough rim frame 11, and the holding tank of front slide 2 is surrounded by trough rim frame 3.
Test specimen is square bituminous concrete piece, when carrying out the shearing strength detection, concrete block is clamped in holding tank between front slide 2 and tail skid 9, turning handle 15 makes horizontal screw bolt 14 be tight against front slide 2 and advances front slide 2 to slide along horizontal sliding bar 4, until with the test specimen compacting between front slide 2 and tail skid 9, continue to be forced into predetermined pressure, front slide 2 produces horizontal shift, and strain gauge 5 can the corresponding force value of output.
Then, the pressure transmission part is placed in tail skid 9 tops, namely the bottom surface of ladder type force transmitting board 8 contacts with tail skid 9 upper surfaces.Vertical constant load or cyclic load are put on loading post 6, by loading post 6, plectane 7 and ladder type force transmitting board 8, with vertical power going down to tail skid 9, bituminous concrete piece test specimen before and after be clamped at this moment between slide plate is subject to vertical shearing force, bituminous concrete piece test specimen is positioned at the distortion of the part generation vertical direction of tail skid 9 one side holding tanks 12, is positioned at the bituminous concrete part of front slide 2 one sides because the constraint that is subject to frame 3 keeps the origin-location.Strain transducer 5 is recorded the deformation under different shearing force levels.
When bituminous concrete piece test specimen is deformed by shearing force, inner aggregate structure is moved, external presentation is that the test specimen volume expands, when this and pavement structure are subject to vehicular load, situation is similar, because the expansion of horizontal direction is restricted, two side guides is produced reacting forces, cause strain gauge to change, the power situation of change will be converted to data-signal input computing machine, by carrying out curve fitting with loading force and deflection, and the shear behavior of evaluation path structure.
Claims (8)
1. in asphalt concrete layer or the checkout equipment of inter-layer shearing strength, it is characterized in that comprising a pair of vertical clamping plate that formed by front slide and tail skid of base and clamping test pieces, described base is comprised of forward and backward two risers that are fixed on base plate, is connected with upper and lower two pairs of horizontal sliding bars between front riser and rear riser; Be respectively equipped with holding tank on described front riser and rear riser opposite face, test specimen is clamped in two relative holding tanks; The described tail skid back side is connected with the rear riser of base with 2 ~ 4 parallel vertical slideways and can be subjected to vertical pressure to produce vertical the slip; Described front slide is connected and can be subjected to horizontal pushing pressure power to produce horizontal shift along slide bar with upper and lower two pairs of horizontal sliding bars.
2. in asphalt concrete layer according to claim 1 or the checkout equipment of inter-layer shearing strength, it is characterized in that described front slide is socketed with each horizontal sliding bar by trepanning and the collar.
3. in asphalt concrete layer according to claim 2 or the checkout equipment of inter-layer shearing strength, it is characterized in that each vertical slideway of each collar of front slide and tail skid all is equipped with linear bearing.
4. in asphalt concrete layer according to claim 3 or the checkout equipment of inter-layer shearing strength, the front riser that it is characterized in that described base connect one can be by rotation the horizontal screw bolt of forward and back, can conflict front slide and the front slide that then applies pressure to of the termination of horizontal screw bolt makes it produce horizontal shift.
5. in asphalt concrete layer according to claim 4 or the checkout equipment of inter-layer shearing strength, it is characterized in that the termination of described horizontal screw bolt offsets by cushion block and front slide.
6. in asphalt concrete layer according to claim 5 or the checkout equipment of inter-layer shearing strength, it is characterized in that the other end of described horizontal screw bolt is equipped with rotary handle.
7. according to claim 1 and 2 or 3 or 4 or 5 or 6 described asphalt concrete layers or the checkout equipment of inter-layer shearing strength, described holding tank is square groove or circular trough.
8. in asphalt concrete layer according to claim 7 or the checkout equipment of inter-layer shearing strength, it is characterized in that described tail skid is equipped with the strain gauge that is connected with horizontal screw bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320001093.0U CN203011784U (en) | 2013-01-04 | 2013-01-04 | Equipment for detecting shearing strength between inner layers of asphalt concrete layers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320001093.0U CN203011784U (en) | 2013-01-04 | 2013-01-04 | Equipment for detecting shearing strength between inner layers of asphalt concrete layers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203011784U true CN203011784U (en) | 2013-06-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320001093.0U Expired - Fee Related CN203011784U (en) | 2013-01-04 | 2013-01-04 | Equipment for detecting shearing strength between inner layers of asphalt concrete layers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203011784U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645043A (en) * | 2013-12-18 | 2014-03-19 | 中交第二航务工程局有限公司 | Combined type shear key stress test method |
| CN104749048A (en) * | 2015-03-06 | 2015-07-01 | 广西壮族自治区水利科学研究院 | Method for detecting shearing strength of interlayer bonding surface of rock filled concrete of constructional engineering |
| CN104977209A (en) * | 2015-06-26 | 2015-10-14 | 张家港市顺佳隔热技术有限公司 | Pressure vessel pressure-resistance detection device |
| CN105510155A (en) * | 2016-01-06 | 2016-04-20 | 南京工业大学 | Device and method for measuring bonding shear strength of cast-in-place concrete and precast concrete of superposed shear wall |
| CN105823584A (en) * | 2016-03-13 | 2016-08-03 | 北京工业大学 | Apparatus for measuring concrete shearing strength by using single-shearing-plane Z-shaped test piece method |
| CN107219131A (en) * | 2017-05-15 | 2017-09-29 | 东南大学 | A kind of asphalt horizontal shear performance test apparatus and method for considering local axial compressive force |
| CN107907430A (en) * | 2017-12-29 | 2018-04-13 | 云南富龙高速公路建设指挥部 | A kind of experimental rig and test method for testing asphalt mixture shearing performance |
| CN107907418A (en) * | 2017-12-11 | 2018-04-13 | 中国建材检验认证集团江苏有限公司 | A kind of experimental rig of crab-bolt tension shearing strength |
| CN108507884A (en) * | 2018-03-20 | 2018-09-07 | 和县祥龙沥青混凝土有限公司 | The detection device of inter-layer shearing strength in a kind of asphalt concrete layer |
| CN108956334A (en) * | 2018-08-14 | 2018-12-07 | 长沙理工大学 | The test device of paving mix and its structure Interlaminar shear strengths |
| CN111595679A (en) * | 2020-06-18 | 2020-08-28 | 大连理工大学 | Experimental device and method for carrying out pull-shear combined loading on embedded pressing block |
-
2013
- 2013-01-04 CN CN201320001093.0U patent/CN203011784U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645043B (en) * | 2013-12-18 | 2016-05-04 | 中交第二航务工程局有限公司 | A kind of combined type shear connector stress test method of testing |
| CN103645043A (en) * | 2013-12-18 | 2014-03-19 | 中交第二航务工程局有限公司 | Combined type shear key stress test method |
| CN104749048A (en) * | 2015-03-06 | 2015-07-01 | 广西壮族自治区水利科学研究院 | Method for detecting shearing strength of interlayer bonding surface of rock filled concrete of constructional engineering |
| CN104977209A (en) * | 2015-06-26 | 2015-10-14 | 张家港市顺佳隔热技术有限公司 | Pressure vessel pressure-resistance detection device |
| CN105510155A (en) * | 2016-01-06 | 2016-04-20 | 南京工业大学 | Device and method for measuring bonding shear strength of cast-in-place concrete and precast concrete of superposed shear wall |
| CN105823584B (en) * | 2016-03-13 | 2018-03-30 | 北京工业大学 | A kind of device suitable for the Z-shaped Specimen Method measure anti-shear concrete intensity in simple shear face |
| CN105823584A (en) * | 2016-03-13 | 2016-08-03 | 北京工业大学 | Apparatus for measuring concrete shearing strength by using single-shearing-plane Z-shaped test piece method |
| CN107219131A (en) * | 2017-05-15 | 2017-09-29 | 东南大学 | A kind of asphalt horizontal shear performance test apparatus and method for considering local axial compressive force |
| CN107907418A (en) * | 2017-12-11 | 2018-04-13 | 中国建材检验认证集团江苏有限公司 | A kind of experimental rig of crab-bolt tension shearing strength |
| CN107907430A (en) * | 2017-12-29 | 2018-04-13 | 云南富龙高速公路建设指挥部 | A kind of experimental rig and test method for testing asphalt mixture shearing performance |
| CN108507884A (en) * | 2018-03-20 | 2018-09-07 | 和县祥龙沥青混凝土有限公司 | The detection device of inter-layer shearing strength in a kind of asphalt concrete layer |
| CN108956334A (en) * | 2018-08-14 | 2018-12-07 | 长沙理工大学 | The test device of paving mix and its structure Interlaminar shear strengths |
| CN111595679A (en) * | 2020-06-18 | 2020-08-28 | 大连理工大学 | Experimental device and method for carrying out pull-shear combined loading on embedded pressing block |
| CN111595679B (en) * | 2020-06-18 | 2021-10-15 | 大连理工大学 | Experimental device and method for carrying out pull-shear combined loading on embedded pressing block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20160104 |