CN112858006A - Test device for realizing rock and concrete pressure-torsion composite creep - Google Patents
Test device for realizing rock and concrete pressure-torsion composite creep Download PDFInfo
- Publication number
- CN112858006A CN112858006A CN202110268257.5A CN202110268257A CN112858006A CN 112858006 A CN112858006 A CN 112858006A CN 202110268257 A CN202110268257 A CN 202110268257A CN 112858006 A CN112858006 A CN 112858006A
- Authority
- CN
- China
- Prior art keywords
- torsion
- clamp
- test device
- sample
- creep
- 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.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 65
- 239000011435 rock Substances 0.000 title claims abstract description 25
- 239000002131 composite material Substances 0.000 title claims abstract description 20
- 238000006073 displacement reaction Methods 0.000 claims abstract description 36
- 238000007906 compression Methods 0.000 claims abstract description 32
- 230000006835 compression Effects 0.000 claims abstract description 31
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 230000007774 longterm Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/22—Investigating strength properties of solid materials by application of mechanical stress by applying steady torsional forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0021—Torsional
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0026—Combination of several types of applied forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0033—Weight
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0071—Creep
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
- G01N2203/0423—Chucks, fixtures, jaws, holders or anvils using screws
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
- G01N2203/0452—Cushioning layer between test piece and grip
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a test device for realizing the compressive-torsional composite creep of rock and concrete. The invention belongs to the technical field of material mechanical property measurement, and relates to a material mechanical property testing technology which comprises an integral frame, a compression part, a torsion part, a support part, a measurement transmission storage part and a sample, wherein the compression part comprises a pressure applying loading wheel, the torsion part comprises a torsion fixture, a torsion fixture cantilever rod, a cantilever rod sling and a weight, the support part comprises a torsion fixture support rod, the measurement transmission storage part comprises a pressure sensor, an electronic displacement meter, a stress displacement collector, a lead and a notebook computer, and the device provides a creep test device capable of simultaneously applying compression and torsion composite loads, and is used for researching the time relation of torsion and compression creep under different compression-torsion loads. The device operation method is simple, and the staff can realize fast conveniently.
Description
Technical Field
The invention belongs to the technical field of material mechanical property measurement, relates to a material mechanical property testing technology, and particularly relates to a testing device for realizing rock and concrete pressure-torsion composite creep.
Background
Rock and concrete are the most common engineering materials in civil engineering, the long-term stress performance of the rock and concrete is the most important durability index in the design service life, and the deformation of the rock and concrete slowly increases along with the time under the action of long-term fixed load, which is called creep deformation. Tests show that the creep deformation of the concrete can reach 1-2 times of elastic deformation, and even more. The stress and deformation of the concrete structure calculated from the elastic state therefore only represent the situation in which the load starts to act, and in order to know the stress and deformation of the rock and concrete structure throughout the service life, the creep properties of the material must be considered. The research on the creep of the rock and the concrete and the related calculation theory has important significance for the safe and durable operation of the concrete structure and the underground rock mass structure.
The creep test is a material mechanical property test for determining the slow irreversible deformation phenomenon of the material under the action of a long-time constant load. According to different working environments of materials and structures, creep deformation may occur under single load (such as tensile load, compressive load or torsional load) or under composite load (such as compressive-torsional load and tensile-bending load). Typical creep tests are conducted under uniaxial tension, compression, and torsion conditions. Rock and concrete have good compression performance, rock and concrete members in engineering structures can also be subjected to the effects of torsion and compression coupling long-term loads, but devices suitable for torsion and compression coupling creep tests are rare, and the research and development of a test device for realizing rock concrete torsion-compression combined creep is a technical problem urgently needed to be solved by the engineering field.
Disclosure of Invention
In order to solve the problems in the prior art, the invention develops a test device for realizing the compressive-torsional composite creep of rock and concrete, provides a creep test device capable of simultaneously applying compressive and torsional composite loads, is used for researching the time relationship between torsion and compressive creep under different compressive-torsional loads, and has the advantages of reasonable structure, simple and practical operation and high measurement precision.
The invention adopts the technical scheme that the test device for realizing the compression torsion composite creep of the rock and the concrete comprises an integral frame, a compression part, a torsion part, a support part, a measurement transmission storage part and a sample, wherein the compression part comprises a pressure applying loading wheel, the torsion part comprises a torsion clamp, a torsion clamp cantilever rod, a cantilever rod sling and a weight, the support part comprises a torsion clamp support rod, the measurement transmission storage part comprises a pressure sensor, an electronic displacement meter, a stress displacement collector, a lead and a notebook computer,
the pressure loading wheel is arranged on the upright post of the integral frame and is connected with the end part of the sample, and the pressure sensor is arranged between the pressure loading wheel and the sample;
the shape of the twisted clamp is a cylindrical hollow structure, the sample is a cuboid, the hollow shape of the twisted clamp is matched with the cuboid shape of the sample, the twisted clamp is sleeved outside the sample, a group of twisted clamp cantilever rods are symmetrically and fixedly arranged at the midpoint of the top of the twisted clamp, one twisted clamp cantilever rod is fixedly connected with a cantilever rod sling, the other twisted clamp cantilever rod is connected with an electronic displacement meter, a weight is arranged on the cantilever rod sling, and the electronic displacement meter is fixed on the top beam of the integral frame;
the pressure sensor and the electronic displacement meter are respectively connected with a stress displacement collector by virtue of wires, and the stress displacement collector is connected with the notebook computer by virtue of wires;
the bottom of the torsion fixture is provided with a torsion fixture supporting rod, and the torsion fixture supporting rod is fixed in the integral frame.
The test device also comprises a fixing component, wherein the fixing component comprises an end part clamping and fastening bolt, and the end part of the test sample is fixedly connected with the integral frame by virtue of the end part clamping and fastening bolt.
The test device also comprises a fixing component, wherein the fixing component comprises a torsion clamp clamping and fastening bolt, and the torsion clamp and the sample are fastened and fixed by virtue of the torsion clamp clamping and fastening bolt.
The test device also comprises a fixing part, wherein the fixing part comprises a torsion clamp supporting rod fixing bolt, and the torsion clamp supporting rod is fixed in the integral frame by virtue of the torsion clamp supporting rod fixing bolt.
And an end clamping cushion block is arranged between the sample and the end clamping fastening bolt.
And a clamping cushion block of the torsion clamp is arranged between the sample and the clamping and fastening bolt of the torsion clamp.
And an end part pressure cushion block is arranged between the sample and the pressure sensor.
The number of the twisted clamp supporting rods is two, and the two twisted clamp supporting rods are respectively arranged at two ends of the twisted clamp.
The upper part of the support rod of the torsion clamp is provided with an arc-shaped support.
The invention has the beneficial effects that: the device provides a creep test device capable of simultaneously applying compressive and torsional composite loads, and is used for researching the time relationship between torsion and compression creep under different compressive and torsional loads. The upright columns at the two ends of the whole frame provide clamping for the twisted end parts, and the middle part provides a cantilever for twisting. The weights are suspended through the suspension arm sling to apply torsional load, and the compression and torsion composite load can be accurately and conveniently applied through the pressure application loading wheel to apply compressive load. By adjusting the compression and torsion loads, a pure compression creep test, a pure torsion creep test and a pressure-torsion coupling creep test can be realized, and based on the torsion and compression load proportion, the creep-time relation of torsion and compression under different pressure-torsion combined loads is researched.
The present invention will be described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of a torsion clamp and torsion clamp cantilever bar;
FIG. 3 is a side view of a torsion member;
FIG. 4 is a front view of the support member;
FIG. 5 is a side view of the support member in use;
in the attached drawing, 1 is an integral frame, 2 is an end clamping cushion block, 3 is an end clamping fastening bolt, 4 is a twisted clamp, 5 is a twisted clamp clamping fastening bolt, 6 is a twisted clamp cantilever bar, 7 is a twisted clamp supporting bar, 8 is a cantilever bar sling, 9 is a weight, 10 is a twisted clamp supporting bar fixing bolt, 11 is an electronic displacement meter, 12 is a pressure sensor, 13 is a pressure applying loading wheel, 14 is a lead, 15 is a stress displacement collector, 16 is a notebook computer, 17 is a sample, 18 is a twisted clamp clamping cushion block, and 19 is an end pressed cushion block.
Detailed Description
As shown in fig. 1-5, a test device for realizing the composite creep of rock and concrete torsion comprises an integral frame 1, a compression part, a torsion part, a support part, a measurement transmission storage part and a test sample 17, wherein the compression part comprises a pressure loading wheel 13, the torsion part comprises a torsion fixture 4, a torsion fixture cantilever rod 6, a cantilever rod sling 8 and a weight 9, the support part comprises a torsion fixture support rod 7, the measurement transmission storage part comprises a pressure sensor 12, an electronic displacement meter 11, a stress displacement collector 15, a lead 14 and a notebook computer 16,
the pressure loading wheel 13 is arranged on a vertical column of the integral frame 1 and is connected with the end part of the test sample 17, and the pressure sensor 12 is arranged between the pressure loading wheel 13 and the test sample 17;
the shape of the torsion fixture 4 is a cylindrical hollow structure, the sample 17 is a cuboid, the hollow shape of the torsion fixture 4 is matched with the cuboid shape of the sample 17, the torsion fixture 4 is sleeved outside the sample 17, a group of torsion fixture cantilever rods 6 are symmetrically and fixedly arranged at the midpoint of the top of the torsion fixture 4, one torsion fixture cantilever rod 6 is fixedly connected with a cantilever rod sling 8, the other torsion fixture cantilever rod 6 is connected with an electronic displacement meter 11, a weight 9 is arranged on the cantilever rod sling 8, and the electronic displacement meter 11 is fixed on the top beam of the integral frame 1; through receiving to turn round anchor clamps cantilever bar 6 and electronic displacement meter 11 and link to each other, can real-time recording creep process's displacement time curve, according to little deformation condition, supposing that the electronic displacement meter 11 measured value is x, the length of receiving to turn round anchor clamps cantilever bar 6 is l, then twist angle alpha can be expressed as: and (3) obtaining a torsion deformation and time curve, wherein alpha is tan alpha and x/l, and providing data support for the torsion creep analysis.
The pressure sensor 12 and the electronic displacement meter 11 are respectively connected with a stress displacement collector 15 by a lead 14, and the stress displacement collector 15 is connected with a notebook computer 16 by the lead 14;
the end part of the test sample 17 is connected with the pressure sensor 12, different compression loads can be applied to the test sample 17 by rotating the pressure applying loading wheel 13, different compression and torsion combined loads can be formed by combining the weight 9 and the pressure applying loading wheel 13, the test condition of long-term compression torsion coupling creep is achieved, and a pure torsion creep test, a pure compression creep test and a compression torsion coupling creep test can be specifically realized.
The bottom of the torsion fixture 4 is provided with a torsion fixture supporting rod 7, and the torsion fixture supporting rod 7 is fixed in the integral frame 1.
The test device also comprises a fixing part, the fixing part comprises an end clamping and fastening bolt 3, the end of the test sample 17 is fixedly connected with the integral frame 1 by the end clamping and fastening bolt 3, and the connection between the test sample 17 and the integral frame 1 can be further reinforced.
The test device also comprises a fixing part, the fixing part comprises a torsion clamp clamping and fastening bolt 5, the torsion clamp 4 and the test sample 17 are fastened and fixed through the torsion clamp clamping and fastening bolt 5, and the connection between the test sample 17 and the torsion clamp 4 can be further reinforced.
The test device also comprises a fixing part, the fixing part comprises a twisted clamp supporting rod fixing bolt 10, and the twisted clamp supporting rod 7 is fixed in the integral frame 1 by the twisted clamp supporting rod fixing bolt 10.
In order to adjust the centering position of the test sample 17 and realize torsional centering, an end clamping cushion block 2 is arranged between the test sample 17 and the end clamping fastening bolt 3. The end clamping cushion block 2 is pushed in by the end clamping fastening bolt 3, so that the sample 17 is always kept on the torsion axis.
In order to adjust the centering position of the test sample 17 and realize torsional centering, a clamping cushion block 18 of the torsional clamp is arranged between the test sample 17 and the clamping and fastening bolt 5 of the torsional clamp. The clamping and fastening bolt 5 of the torsion clamp is used for pushing the clamping cushion block 18 of the torsion clamp, so that the sample 17 is always kept on the torsion axis.
In order to apply a compressive load evenly to the test piece 17 and avoid eccentric compression, an end compression pad 19 is provided between the test piece 17 and the pressure sensor 12. The side area of the end compression pad 19 is slightly larger than the cross-sectional area of the test specimen 17.
In order to keep balance, the number of the torsion clamp supporting rods 7 is two, and the two torsion clamp supporting rods 7 are respectively arranged at two ends of the torsion clamp 4.
The upper part of the support rod 7 of the torsion fixture is an arc-shaped support, the arc shape of the support rod is completely consistent with the shape of the torsion fixture 4, and the bending load effect of the sample 17, such as the dead weight of the sample 17, the weight of the weight 9, the weight of the torsion fixture 4 and the like, can be effectively reduced.
The invention, in particular use: the end clamping is preset on the upright column of the whole frame 1, the two ends of the cuboid sample 17 are placed into the clamping ends, the upper part and the lower part are adjusted to the centering position by the end clamping and fastening bolt 3 to the end clamping cushion block 2, the sample 17 is fastened, and the purpose of end torsion clamping is achieved. The sample 17 passes through the torsion fixture 4, the torsion fixture 4 is a metal part with an inner square and an outer circle on the cross section, the upper end and the lower end of the torsion fixture are provided with the torsion fixture clamping and fastening bolts 5, the upper surface and the lower surface of the torsion sample 17 are provided with the torsion fixture clamping cushion blocks 18, the torsion fixture clamping and fastening bolts 5 push the positions of the torsion fixture clamping cushion blocks 18 to the centering positions, and then the middle torsion section is clamped. A group of torsion fixture cantilever rods 6 are symmetrically fixed at the middle points of the tops of the torsion fixtures 4, cantilever rod slings 8 are hung at one ends of the torsion fixture cantilever rods 6, electronic displacement meters 11 are supported at one ends of the torsion fixture cantilever rods 6, the torsion fixtures 4 are arranged on the torsion fixture supporting rods 7, the upper parts of the torsion fixture supporting rods 7 are arc-shaped supporters consistent with the shapes of the torsion fixtures 4, and the torsion fixture supporting rods 7 are fixed on the bottom beam of the integral frame 1 by adopting torsion fixture supporting rod fixing bolts 10. Weights 9 with different masses can be hung at the lifting hook at the lower end of the suspension arm sling 8 so as to achieve the purpose of applying vertical load. The size of the vertical load is multiplied by the length of the torsion clamp cantilever rod 6 to obtain the torsion load. One end of an electronic displacement meter 11 is fixed on an upper beam of the whole frame 1, one end of the electronic displacement meter is supported on the end part of the torsion clamp cantilever rod 6, the end part displacement of the torsion clamp cantilever rod 6 is measured, and the torsion angle deformation can be obtained through the ratio of the end part displacement to the length of the torsion clamp cantilever rod 6. The middle end clamping part of the right end column of the whole frame 1 is provided with an end part compression cushion block 19, the end part compression cushion block 19 is connected with a pressure sensor 12, the pressure sensor 12 is connected with a pressure applying loading wheel 13, pressure loads with different sizes can be applied by rotating the pressure applying loading wheel 13, an electronic displacement meter 11 and the pressure sensor 12 are connected with a lead 14, the lead 14 is connected with a stress displacement collector 15, and data collected by the stress displacement collector 15 is transmitted to a notebook computer 16 through the lead 14 for data processing and storage.
Claims (9)
1. The utility model provides a realize rock, concrete pressure and twist compound creep's test device which characterized in that: comprises an integral frame (1), a compression part, a twisting part, a supporting part, a measurement transmission storage part and a test sample (17), wherein the compression part comprises a pressure applying loading wheel (13), the twisting part comprises a twisted clamp (4), a twisted clamp cantilever rod (6), a cantilever rod sling (8) and a weight (9), the supporting part comprises a twisted clamp supporting rod (7), the measurement transmission storage part comprises a pressure sensor (12), an electronic displacement meter (11), a stress displacement collector (15), a lead (14) and a notebook computer (16),
the pressure loading wheel (13) is arranged on a vertical column of the integral frame (1) and is connected with the end part of the test sample (17), and the pressure sensor (12) is arranged between the pressure loading wheel (13) and the test sample (17);
the shape of the torsion fixture (4) is a cylindrical hollow structure, the sample (17) is a cuboid, the hollow shape of the torsion fixture (4) is matched with the shape of the cuboid of the sample (17), the torsion fixture (4) is sleeved outside the sample (17), a group of torsion fixture cantilever rods (6) are symmetrically and fixedly arranged at the midpoint of the top of the torsion fixture (4), one torsion fixture cantilever rod (6) is fixedly connected with a cantilever rod sling (8), the other torsion fixture cantilever rod (6) is connected with an electronic displacement meter (11), a weight (9) is arranged on the cantilever rod sling (8), and the electronic displacement meter (11) is fixed on the top beam of the integral frame (1);
the pressure sensor (12) and the electronic displacement meter (11) are respectively connected with a stress displacement collector (15) by virtue of a lead (14), and the stress displacement collector (15) is connected with a notebook computer (16) by virtue of the lead (14);
the bottom of the torsion fixture (4) is provided with a torsion fixture supporting rod (7), and the torsion fixture supporting rod (7) is fixed in the integral frame (1).
2. The test device for realizing rock and concrete compressive-torsional composite creep of claim 1, wherein: the test device also comprises a fixing component, the fixing component comprises an end clamping and fastening bolt (3), and the end of the test sample (17) is fixedly connected with the integral frame (1) by the end clamping and fastening bolt (3).
3. The test device for realizing rock and concrete compressive-torsional composite creep of claim 1, wherein: the test device also comprises a fixing component, the fixing component comprises a torsion clamp clamping and fastening bolt (5), and the torsion clamp (4) and the test sample (17) are fastened and fixed through the torsion clamp clamping and fastening bolt (5).
4. The test device for realizing rock and concrete compressive-torsional composite creep of claim 1, wherein: the test device also comprises a fixing part, the fixing part comprises a torsion clamp supporting rod fixing bolt (10), and the torsion clamp supporting rod (7) is fixed in the integral frame (1) by means of the torsion clamp supporting rod fixing bolt (10).
5. The test device for realizing rock and concrete compressive-torsional composite creep of claim 2, wherein: and an end clamping cushion block (2) is arranged between the sample (17) and the end clamping fastening bolt (3).
6. The test device for realizing rock and concrete compressive-torsional composite creep of claim 3, wherein: and a clamping cushion block (18) of the torsion clamp is arranged between the sample (17) and the clamping and fastening bolt (5) of the torsion clamp.
7. The test device for realizing rock and concrete compressive-torsional composite creep of claim 1, wherein: an end part pressure cushion block (19) is arranged between the sample (17) and the pressure sensor (12).
8. The test device for realizing rock and concrete compressive-torsional composite creep of claim 1, wherein: the number of the twisted clamp supporting rods (7) is two, and the two twisted clamp supporting rods (7) are respectively arranged at two ends of the twisted clamp (4).
9. The test device for realizing rock and concrete compressive-torsional composite creep of claim 1, wherein: the upper part of the twisted clamp supporting rod (7) is an arc-shaped supporting support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110268257.5A CN112858006A (en) | 2021-03-11 | 2021-03-11 | Test device for realizing rock and concrete pressure-torsion composite creep |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110268257.5A CN112858006A (en) | 2021-03-11 | 2021-03-11 | Test device for realizing rock and concrete pressure-torsion composite creep |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112858006A true CN112858006A (en) | 2021-05-28 |
Family
ID=75994313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110268257.5A Pending CN112858006A (en) | 2021-03-11 | 2021-03-11 | Test device for realizing rock and concrete pressure-torsion composite creep |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112858006A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101498625A (en) * | 2009-03-13 | 2009-08-05 | 北京工业大学 | Component pressing and twisting experimental device and method thereof |
| CN202471528U (en) * | 2011-11-22 | 2012-10-03 | 哈尔滨商业大学 | Wood-plastic composite-material torsional creepmeter |
| CN103115828A (en) * | 2013-01-25 | 2013-05-22 | 苏州科技学院 | Component combined torsion experimental device and method |
| CN103149101A (en) * | 2013-02-28 | 2013-06-12 | 西安理工大学 | Multifunctional triaxial creep testing machine with soil body pulling, pressing, twisting and shearing functions |
| CN105372127A (en) * | 2014-08-22 | 2016-03-02 | 郑全山 | Tension-compression and torsion composite loading testing machine |
| CN106153462A (en) * | 2016-06-22 | 2016-11-23 | 大连理工大学 | A kind of asphalt pressure turns round failure by shear performance test apparatus |
| CN106840925A (en) * | 2017-03-31 | 2017-06-13 | 沈阳建筑大学 | Research structure rod member bends and turns round the experimental rig and method of Hysteresis Behavior |
| CN106908335A (en) * | 2017-04-27 | 2017-06-30 | 中国石油大学(华东) | A kind of rock is reversed and drawn（Pressure）The creep loading device of compound action |
| CN107084892A (en) * | 2017-04-27 | 2017-08-22 | 中国石油大学(华东) | A kind of rock reverses the creep loading device that (pressure) compound action is drawn in bending |
| CN108760150A (en) * | 2018-07-16 | 2018-11-06 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of large size force value asymmetrical load power and torque decouple calibrating installation |
| JP2019148472A (en) * | 2018-02-27 | 2019-09-05 | 中国電力株式会社 | Creep test device |
| CN210626206U (en) * | 2019-09-26 | 2020-05-26 | 吉林大学 | Tension-torsion composite extensometer suitable for plate-shaped sample |
-
2021
- 2021-03-11 CN CN202110268257.5A patent/CN112858006A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101498625A (en) * | 2009-03-13 | 2009-08-05 | 北京工业大学 | Component pressing and twisting experimental device and method thereof |
| CN202471528U (en) * | 2011-11-22 | 2012-10-03 | 哈尔滨商业大学 | Wood-plastic composite-material torsional creepmeter |
| CN103115828A (en) * | 2013-01-25 | 2013-05-22 | 苏州科技学院 | Component combined torsion experimental device and method |
| CN103149101A (en) * | 2013-02-28 | 2013-06-12 | 西安理工大学 | Multifunctional triaxial creep testing machine with soil body pulling, pressing, twisting and shearing functions |
| CN105372127A (en) * | 2014-08-22 | 2016-03-02 | 郑全山 | Tension-compression and torsion composite loading testing machine |
| CN106153462A (en) * | 2016-06-22 | 2016-11-23 | 大连理工大学 | A kind of asphalt pressure turns round failure by shear performance test apparatus |
| CN106840925A (en) * | 2017-03-31 | 2017-06-13 | 沈阳建筑大学 | Research structure rod member bends and turns round the experimental rig and method of Hysteresis Behavior |
| CN106908335A (en) * | 2017-04-27 | 2017-06-30 | 中国石油大学(华东) | A kind of rock is reversed and drawn（Pressure）The creep loading device of compound action |
| CN107084892A (en) * | 2017-04-27 | 2017-08-22 | 中国石油大学(华东) | A kind of rock reverses the creep loading device that (pressure) compound action is drawn in bending |
| JP2019148472A (en) * | 2018-02-27 | 2019-09-05 | 中国電力株式会社 | Creep test device |
| CN108760150A (en) * | 2018-07-16 | 2018-11-06 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of large size force value asymmetrical load power and torque decouple calibrating installation |
| CN210626206U (en) * | 2019-09-26 | 2020-05-26 | 吉林大学 | Tension-torsion composite extensometer suitable for plate-shaped sample |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205120490U (en) | Geotechnique's type test piece tensile test load anchor clamps | |
| CN106018044B (en) | Concrete direct tensile test test specimen, specimen molding mold and complexes | |
| CN104792611B (en) | Concrete compression bursting stress strain full curve test device | |
| CN2898758Y (en) | Engineering-structured displacement-deforming measuring apparatus | |
| CN106841577B (en) | Concrete loading device and method applicable to load-environment coupling effect | |
| CN109060555B (en) | Concrete creep testing device and analysis method based on four-point bending loading | |
| CN206787816U (en) | Guard against error railing horizontal thrust load testing machine | |
| CN100510668C (en) | Prestressed cable tension tester | |
| CN103163016A (en) | Auxiliary device for carrying out axial tension test on quasi brittle materials | |
| CN204556381U (en) | Concrete compression failing stress-strain full curve proving installation | |
| RU2570231C1 (en) | Bench for testing of reinforced concrete elements for joint short-term dynamic impact of twisting and running torque | |
| CN111751276A (en) | Loading device and method for bonding performance test of reinforcement and confined concrete | |
| RU2315969C1 (en) | Stand for testing concrete and reinforced concrete members short - time period central and out-of-center dynamic compression | |
| CN112858006A (en) | Test device for realizing rock and concrete pressure-torsion composite creep | |
| CN210834463U (en) | Can unite compression fatigue testing machine to carry out tensile fatigue test's tool equipment | |
| CN210108832U (en) | A novel direct tensile test device for concrete sample | |
| CN114111541B (en) | Bridge dynamic deflection test system and method based on stress rigidization effect | |
| CN212903682U (en) | Laboratory detects frictional resistance's of prestressed anchorage mouth and horn mouth device | |
| CN112557181A (en) | Clamp for realizing four-point bending and four-point shearing fatigue of positive and negative stress ratios of rock concrete | |
| CN212621238U (en) | Bridge inhaul cable force increment measuring device | |
| CN213209873U (en) | Loading device for bonding performance test of reinforcement and confined concrete | |
| RU172393U1 (en) | BENCH FOR TESTING REINFORCED CONCRETE ELEMENTS WITH COMPRESSION AND SHORT DYNAMIC TURNING | |
| CN211148296U (en) | Microcomputer-controlled electro-hydraulic servo universal testing machine | |
| CN103791827B (en) | A kind of strain-type inside configuration sectional twisting angle sensor and scaling method thereof | |
| CN207764043U (en) | A kind of thermometer bulb characteristic test load enlarger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210528 |
|
| WD01 | Invention patent application deemed withdrawn after publication |