CN110220791A - A kind of cylindrical concrete component axial direction tensile test apparatus - Google Patents
A kind of cylindrical concrete component axial direction tensile test apparatus Download PDFInfo
- Publication number
- CN110220791A CN110220791A CN201910460029.0A CN201910460029A CN110220791A CN 110220791 A CN110220791 A CN 110220791A CN 201910460029 A CN201910460029 A CN 201910460029A CN 110220791 A CN110220791 A CN 110220791A
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- main body
- component
- fixture
- power transmission
- bolt
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- 238000009864 tensile test Methods 0.000 title claims abstract description 9
- 238000012360 testing method Methods 0.000 claims abstract description 49
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 238000005096 rolling process Methods 0.000 claims abstract description 14
- 238000013480 data collection Methods 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims 1
- 235000011613 Pinus brutia Nutrition 0.000 claims 1
- 241000018646 Pinus brutia Species 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000004154 testing of material Methods 0.000 description 1
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
- G01N3/02—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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
-
- 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
- G01N2203/0017—Tensile
-
- 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
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- 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
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
-
- 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
- G01N2203/0405—Features allowing alignment between specimen and chucks
-
- 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
Abstract
A kind of cylindrical concrete component axial direction tensile test apparatus, including apparatus main body and data collection system, the apparatus main body includes first assembly, the second component, the first assembly and second component axisymmetricly structure, are the test station for placing cylindrical concrete component to be measured between the first assembly and the second component；The first assembly includes and the clamping bar of closed loop electro-hydraulic servo universal testing machine connection, flexible wire ropes, rolling bearing, bearing are opposite with connection component that wirerope connect, bearing relative position fixed beam, power transmission main body cover, fixture, fixture fixes rod piece and concrete test block positioning device；The power transmission main body cover is provided with screw hole, and the screw hole is used for the shank of bolt of jockey, and the shank of bolt jockey controls the elastic of fixture by the rotation of bolt, and there is concrete test block positioning device in power transmission main body cover end.Operation of the present invention is more convenient, error is smaller.
Description
Technical field
The present invention relates to a kind of concrete material experimental rig, especially a kind of measurement cylindrical concrete members shaft
To the experimental rig of tensile stress, belong to construction material testing equipment field.
Background technique
Concrete axial tensile strength is the important indicator of concrete material mechanical property, is used for work for concrete material
The detail design of industry and civil buildings, marine structure, bridge road etc. has important reference significance, particularly with Crack Control
Checking computations have important reference significance.Now for concrete axial tensile strength test method there are mainly two types of, one is
Measurement indirectly, such as spilt test, but the experimental data measured will be handled by the theory deduction in later period, it is comparatively laborious.In addition
One is directly measuring, this measurement method is simple and data pass through the axial direction that concrete test block can be obtained in simple analysis
Tensile strength.But this method is directly measured for the more demanding of stretching device, because to guarantee the axial tension of test block.Institute
It is a kind of easy to operate to need, and can guarantee axial tension.It thus can preferably determine the tensile mechanical performance of concrete,
More accurate reference data is provided with design for the application of concrete material.
Summary of the invention
In order to overcome the cumbersome of test mode, the biggish deficiency of error of existing concrete axial tensile strength, this
Invention provides a kind of more convenient, the smaller cylindrical concrete component axial direction tensile test apparatus of error of operation.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of cylindrical concrete component axial direction tensile test apparatus, including apparatus main body and data collection system, it is described
Apparatus main body include first assembly, the second component, the first assembly and second component axisymmetricly structure, institute
It states between first assembly and the second component as the test station for placing cylindrical concrete component to be measured；
The first assembly includes the clamping bar connecting with closed loop electro-hydraulic servo universal testing machine, flexible wire ropes, rolling
Connection component that bearing, bearing are connected with wirerope, bearing relative position fixed beam, power transmission main body cover, fixture, fixture phase
To fixed beam and concrete test block positioning device；Rolling bearing, the rolling bearing one are equipped in the power transmission main body cover
End steel wire penetrating connects power transmission main body cover, and the bearing other end passes through the connection component that bearing is connect with wirerope
Connect with flexible wire ropes, the flexible wire ropes are connect with clamping bar again, the clamping bar again with the omnipotent examination of closed loop electro-hydraulic servo
Test machine connection.
The power transmission main body cover is provided with screw hole, and the screw hole is used for the shank of bolt of jockey, the shank of bolt
Jockey controls the elastic of fixture by the rotation of bolt, and there is concrete test block positioning in power transmission main body cover end
Device.
Further, the bolt is not fixedly connected with fixture, but can relatively rotate, the bolt passes through rotation
Turn, controls the elastic of fixture.
Further, the concrete test block positioning device is made of the rubber skin of certain elasticity, by cylindrical concrete
Soil is fixed on the center of power transmission main body cover.
Beneficial effects of the present invention are mainly manifested in: operation is more succinct, and due to using flexible wire ropes, axis draws center more
It is easy to look for, control error is smaller.
Detailed description of the invention
Fig. 1 is general arrangement schematic of the invention.
Fig. 2 is structural schematic diagram of the invention.
Fig. 3 is the joint detail figure between the bearing and the connection component and rolling bearing of wirerope connection.
Fig. 4 is bearing figure.
Fig. 5 is the joint detail figure of the elasticity bolt and the fixture.
Fig. 6 is the detail view of fixture.
Fig. 7 is the detail view of positioning device.
Fig. 8 is the location diagram of fixture and power transmission main body cover.
In figure: 1 being the clamping bar being connect with closed loop electro-hydraulic servo universal testing machine, 2 be the first flexible wire ropes, 3 be axis
Hold the connection component being connect with wirerope, 4 be rolling bearing, 5 be first bearing relative position fixed beam, 6 be second flexibility
Wirerope, 7 be second bearing relative position fixed beam, 8 be connection ring, 9 be power transmission main body cover, 10 be that fixture is relatively fixed
Rod piece, 11 be fixture, 12 be elasticity bolt, 13 be power transmission buckle, 14 be concrete test block positioning device, 15 be cylinder concrete examination
Block.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
Referring to Fig.1~Fig. 8, a kind of cylindrical concrete component axial direction tensile test apparatus, including apparatus main body and data
Acquisition system, the apparatus main body include first assembly, the second component, and the first assembly and second component are in
Axially symmetric structure；
The first assembly includes the clamping bar 1 connecting with closed loop electro-hydraulic servo universal testing machine, the first flexible steel wire
Rope 2, rolling bearing 4, bearing and the connection component 3 of wirerope connection, the 5, second flexibility of first bearing relative position fixed beam
Wirerope 6, second bearing relative position fixed beam 7, power transmission main body cover 9, fixture 11, fixture are fixed rod piece 10 relatively and are mixed
Solidifying soil test block positioning device 14；In the power transmission main body cover 9, it is equipped with rolling bearing 4, described 4 one end of rolling bearing is with second
Flexible wire ropes 6 pass through connection power transmission main body cover 9, what 4 other end of rolling bearing was connect by bearing with wirerope
Connection component 3 is connect with the first flexible wire ropes 2, and first flexible wire ropes 2 are connect with clamping bar 1 again, the clamping bar 1 again with
The connection of closed loop electro-hydraulic servo universal testing machine.
The power transmission main body cover 9 is provided with 3 screw holes (being wired to 120 degree with cylindrical center), and 3 screw holes are used
In the shank of bolt of jockey, the shank of bolt jockey controls the elastic of fixture by the rotation of bolt.The power transmission
There is concrete test block positioning device 14 in 9 end of main body cover.
Further, the bolt is not fixedly connected with fixture, but can relatively rotate, the bolt passes through rotation
Turn, controls the elastic of fixture.
Further, the concrete test block positioning device 14 is mixed by cylinder by there is the rubber skin of certain elasticity to be made
Solidifying soil is fixed on the center of power transmission main body cover 9.
In the present embodiment, cylinder concrete axial to be measured drawing 15 one end of test specimen is first protruded into first assembly fixture, it is described fixed
Cylinder concrete axial to be measured drawing test specimen is located in the center between the fixture 11 by position device 14.Inwardly tighten the bolt
12, so that the fixture 11 clamps the cylinder concrete axial to be measured and draws test specimen 15.Similarly, by the cylinder concrete to be measured
Axis draws the other end of test specimen 15 to be clamped with the second component.Then the clamping bar 1 of the first assembly and the second clamping bar 1 are distinguished
It is connected with the both ends loading device of closed loop electro-hydraulic servo universal testing machine (1000 type of WAW -).After fixed test specimen, work as test specimen
When both ends are by vertical tension, if test specimen has that axle center is unjustified, first flexible wire ropes 2 and the rolling
Dynamic bearing 4 can be made test specimen that minor rotation occur and be realigned by the angles and positions of the corresponding adjustment screw of the pulling force being subject to
To reach the state of axle center alignment, still axial tension, start-up loading fill the cylinder concrete test block under the action of pulling force
It sets load and starts to carry out the test of concrete component axial tension.When test specimen fracture, according to universal testing machine
The numerical value F for loading load, according to formula: σ=F/A can find out the tensile strength that the concrete axial to be measured draws test specimen, and wherein A is
The cross-sectional area of test specimen to be measured.
In use, cylinder concrete axial to be measured drawing test specimen is stepped up between first component and second component, it then will folder
Bar is fixed on electro-hydraulic servo universal testing machine upper and lower ends loading device, starts electro-hydraulic servo universal testing machine, and phase is arranged
The parameter answered when electro-hydraulic servo universal testing machine works, when test specimen fracture, reads and loads lotus on electro-hydraulic servo universal testing machine
The numerical value F of load, according to formula: σ=F/A can find out the tensile strength that the concrete axial to be measured draws test specimen, and wherein A is to be tested
The cross-sectional area of part.
Claims (3)
1. a kind of cylindrical concrete component axial direction tensile test apparatus, including apparatus main body and data collection system, feature
It is, the apparatus main body includes first assembly, the second component, and the first assembly and second component are in axis pair
Claim structure, is the test station for placing cylindrical concrete component to be measured between the first assembly and the second component；
The first assembly include the clamping bar being connect with closed loop electro-hydraulic servo universal testing machine, flexible wire ropes, rolling bearing,
Bearing and the connection component that wirerope connects, bearing relative position fixed beam, power transmission main body cover, fixture, fixture are opposite solid
Fixed pole part and concrete test block positioning device；Rolling bearing is equipped in the power transmission main body cover, described rolling bearing one end is used
Steel wire penetrating connects power transmission main body cover, the connection component that the bearing other end is connect by bearing with wirerope with it is soft
Property wirerope connection, the flexible wire ropes connect with clamping bar again, the clamping bar again with closed loop electro-hydraulic servo universal testing machine
Connection.
The power transmission main body cover is provided with screw hole, and the screw hole is used for the shank of bolt of jockey, the shank of bolt connection
Fixture controls the elastic of fixture by the rotation of bolt, and there is concrete test block positioning device in power transmission main body cover end.
2. cylindrical concrete component axial direction tensile test apparatus as described in claim 1, including apparatus main body and data are adopted
Collecting system, which is characterized in that the bolt and fixture connect in relative rotation, and the bolt controls the pine of fixture by rotation
Tightly.
3. cylindrical concrete component axial direction tensile test apparatus as claimed in claim 1 or 2, including apparatus main body and data
Acquisition system, which is characterized in that the concrete test block positioning device is made of the rubber skin of elasticity, by cylindrical concrete
It is fixed on the center of power transmission main body cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910460029.0A CN110220791B (en) | 2019-05-30 | 2019-05-30 | Axial tensile test device for cylindrical concrete member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910460029.0A CN110220791B (en) | 2019-05-30 | 2019-05-30 | Axial tensile test device for cylindrical concrete member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110220791A true CN110220791A (en) | 2019-09-10 |
| CN110220791B CN110220791B (en) | 2024-03-22 |
Family
ID=67818813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910460029.0A Active CN110220791B (en) | 2019-05-30 | 2019-05-30 | Axial tensile test device for cylindrical concrete member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110220791B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514521A (en) * | 2019-09-27 | 2019-11-29 | 浙江大学深圳研究院 | A kind of separate type uniaxial loading mechanics vibration testing device |
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| Publication number | Publication date |
|---|---|
| CN110220791B (en) | 2024-03-22 |
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