CN109765104A - Test specimen deformation measurement auxiliary system in a kind of compression test - Google Patents
Test specimen deformation measurement auxiliary system in a kind of compression test Download PDFInfo
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- CN109765104A CN109765104A CN201910201185.5A CN201910201185A CN109765104A CN 109765104 A CN109765104 A CN 109765104A CN 201910201185 A CN201910201185 A CN 201910201185A CN 109765104 A CN109765104 A CN 109765104A
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- 238000005259 measurement Methods 0.000 title claims abstract description 25
- 238000012669 compression test Methods 0.000 title claims abstract description 20
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000006073 displacement reaction Methods 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011020 pilot scale process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The invention discloses test specimen deformation measurement auxiliary systems in a kind of compression test, including upper unit, lower device and fixing bolt；The upper unit includes upper constraint frame and upper positioning device；Upper constraint frame has bolt hole, and upper positioning device has bolt, and upper constraint frame is with upper positioning device by connecting from strap bolt with bolt hole；The lower device includes lower constraint frame and lower positioning device, and lower constraint frame has bolt hole, and lower positioning device has bolt, and lower constraint frame is with lower positioning device by connecting from strap bolt with bolt hole.Test specimen deformation measurement auxiliary system in compression test of the invention, form is simple, easy for installation, does not need professional tool；Suitable for the circular cross-section of sizes and the test of square-section test specimen；Test specimen deformation measurement auxiliary system and test specimen are fixed with spring in compression test, belong to flexible contact, are caused auxiliary device to be squeezed and deformed when can destroy to avoid test specimen and are destroyed.
Description
Technical field
The present invention relates to test specimen deformation measurement auxiliary systems in civil engineering test field more particularly to a kind of compression test
System.
Background technique
When material compression is with structural elements pressurized tests, the change during measurement sample increases with load is generally required
Shape, for analyzing the ductility and deformability of sample.And measure there are many kinds of the displacement meter types of deformation: LVDT, swashing in the market
Light displacement meter, guy type displacement meter, pin type displacement meter etc., it is not general when with different type displacement meter measurement sample deformation
Auxiliary device, be all that a test individually customizes a set of auxiliary device, and during the test sample compression can expand it is crowded
Auxiliary device is pressed, causes auxiliary device for displacement measurement scrappage very high, even causes the damage of displacement meter sometimes.
Therefore, find it is a kind of have a characteristic that generally be applicable in, structure is simple, design science, deformation easy for installation are surveyed
Amount auxiliary system is necessary.
Summary of the invention
Goal of the invention: the deficiencies in the prior art are directed to, the object of the present invention is to provide a kind of compression test pilot scales
Part deformation measurement auxiliary system has the characteristics that generally to be applicable in, structure is simple, design science, easy for installation.
Technical solution: in order to achieve the above-mentioned object of the invention, The technical solution adopted by the invention is as follows:
Test specimen deformation measurement auxiliary system in a kind of compression test, including including upper unit, lower device and fixed spiral shell
Bolt；The upper unit includes upper constraint frame, two upper positioning devices；The lower device includes lower constraint frame, two
Lower positioning device.
The upper constraint frame is eight side types, and four long sides, four short sides: four long side side on both sides are opened there are two right
Claiming bolt hole is for completing square-section specimen test；When completing square-section specimen test, worn with eight fixing bolts
Cross the symmetrical screw hole and sample contacts of long side；A bolt hole is respectively opened for completing circular cross-section in position among four short sides
Specimen test passes through short side screw hole and sample contacts with four fixing bolts when completing circular cross-section specimen test；It is four long
Respectively there is a rectangle air level for confirming that upper constraint frame installation is horizontal among the top surface of side.
The upper positioning device is to weld a screw rod in horizontal steel plate end.
The lower constraint frame is eight side types, and four long sides, four short sides: four long side side on both sides are opened there are two right
Claiming bolt hole, when completing square-section specimen test, is worn with eight fixing bolts for completing square-section specimen test
Cross the symmetrical screw hole and sample contacts of long side；A bolt hole is respectively opened for completing circular cross-section in position among four short sides
Specimen test passes through short side screw hole and sample contacts with four fixing bolts when completing circular cross-section specimen test；It is four long
Respectively there is a rectangle air level for confirming that upper constraint frame installation is horizontal among the top surface of side.
The lower positioning device is that a screw rod is welded at position among vertical steel plate side, and the other side passes through two
Round bar and " mesh " type device weld, and a fixed point, fixed point both ends difference are respectively set among two root long bar of " mesh " type limiting device
Connect with spring one end, spring pocket is on stock, for limiting position and the fixation in measuring instrument stock direction, the other end with
Hyphen bar connection among " mesh " type device, hyphen bar are screw rod, are evenly distributed on every hyphen bar there are two nut, for limiting measurement
The position in instrument hyphen bar direction and fixation.
The fixing bolt is to weld spring by screw rod end.
The utility model has the advantages that test specimen deformation measurement auxiliary system in compression test of the invention, form is simple, easy for installation, no
Need professional tool；Suitable for the circular cross-section of sizes and the test of square-section test specimen；Test specimen becomes in compression test
Shape measurement auxiliary system and test specimen are fixed with spring, belong to flexible contact, cause auxiliary device to squeeze when can destroy to avoid test specimen
Compressive strain destroys.
Detailed description of the invention
Fig. 1 is test specimen deformation measurement auxiliary system schematic diagram in compression test；
Fig. 2 is upper and lower constraint frame schematic diagram；
Fig. 3 is upper positioning device schematic diagram；
Fig. 4 is lower positioning device schematic diagram；
Fig. 5 is fixing bolt schematic diagram.
Specific embodiment
The present invention is described further combined with specific embodiments below.
As shown in Figure 1, test specimen deformation measurement auxiliary system includes upper unit, lower device and fixed spiral shell in compression test
Bolt, upper unit include upper constraint frame 1-1, upper positioning device 1-2-1 and upper positioning device 1-2-2；Lower device 2 include it is lower about
Beam frame 2-1, lower positioning device 2-2-1 and lower positioning device 2-2-2.
When production, upper constraint frame 1-1 is processed into for test specimen deformation measurement auxiliary system in the compression test, four long
The type in the eight of four short sides opens two symmetrical bolts hole in four long side side on both sides, among four short sides respectively
A bolt hole is respectively opened at position, and a rectangle air level is respectively arranged among four long side top surfaces, finally wherein two it is right
Long side side middle part position is claimed respectively to open a positioning screw hole, the symmetrical screw hole of long side is used to wear fixing bolt, rectangular test specimen is fixed,
The screw hole of short side is for wearing fixing bolt, fixed circle test specimen.The positioning screw hole of long side be used for and upper positioning device 1-2-1 and
1-2-2 connection.Upper positioning device 1-2-1 and 1-2-2 is formed with steel plate welding screw rod.Lower constraint frame 2-1 is processed into,
The eight side types of four long sides, four short sides open two symmetrical bolts hole in four long side side on both sides, in four short sides respectively
A bolt hole is respectively opened at position among face, a rectangle air level is respectively arranged among four long side top surfaces, finally wherein
A positioning screw hole is respectively opened in two symmetrical long side sides middle part position, and the symmetrical screw hole of long side is for wearing fixing bolt, fixation side
Shape test specimen, the screw hole of short side is for wearing fixing bolt, fixed circle test specimen.The positioning screw hole of long side is used for and lower positioning device 2-
2-1 and 2-2-2 connection.Lower positioning device 2-2-1 and 2-2-2 are to weld screw rod in steel plate side, another side passes through two
A round bar is welded in the two sides of " mesh " type mounting device longitudinal edge, and fixed point is respectively set among two longitudinal edges, is used to
Fixed spring one end, the spring other end are connect with intermediate horizontal short side, and displacement measuring device can be fixed on to " mesh " type peace in this way
Assembling device long side middle section, and intermediate horizontal short side is to make of screw rod, and be respectively arranged two bolts on two screw rods, is used
In in horizontal short side direction fixed displacement measuring device.
Superstructure of the invention is connect with substructure.Advantage is: test specimen deformation measurement assists in the compression test
System is generally applicable in the deformation measurement test of various displacement measuring devices, and form is simple, easy for installation, is not needed specially
Industry tool；Suitable for the circular cross-section of sizes and the test of square-section test specimen；Test specimen deformation measurement in compression test
Auxiliary system and test specimen are fixed with spring, belong to flexible contact, cause auxiliary device to be squeezed and deformed when can destroy to avoid test specimen
It destroys.
Claims (5)
1. test specimen deformation measurement auxiliary system in a kind of compression test, which is characterized in that including upper unit, lower device and consolidate
Determine bolt；The upper unit includes upper constraint frame 1-1, upper positioning device 1-2-1 and upper positioning device 1-2-2；Described
Lower device 2 includes lower constraint frame 2-1, lower positioning device 2-2-1 and lower positioning device 2-2-2；The upper constraint frame 1-1 is
Eight side types, four long sides, four short sides: four long side side on both sides are opened there are two symmetrical bolt hole, among four short sides
A bolt hole is respectively opened at position, respectively there is a rectangle air level, the symmetrical long side side of two of them among four long side top surfaces
Respectively there is a positioning screw hole at intermediate position；The upper positioning device 1-2-1 is to weld a screw rod in horizontal steel plate end；
The upper positioning device 1-2-2 is to weld a screw rod in horizontal steel plate end；The lower constraint frame 2-1 is eight side types,
Four long sides, four short sides: four long side side on both sides are opened there are two symmetrical bolt hole, and four short sides centre position is each
A bolt hole is opened, respectively there is a rectangle air level, the symmetrical long side side middle part of two of them among four long side top surfaces
Respectively there is a positioning screw hole in position；The lower positioning device 2-2-1 is that a spiral shell is welded at position among vertical steel plate side
Bar, the other side are welded by two round bars and " mesh " type device, respectively set a fixation among two root long bar of " mesh " type limiting device
Point, fixed point both ends are connect with spring one end respectively, and spring pocket is on stock, and hyphen bar connects among the other end and " mesh " type device
It connects, hyphen bar is screw rod, and uniformly distributed on every hyphen bar there are two nuts；The lower positioning device 2-2-2, is in vertical steel plate
A screw rod is welded at position among side, and the other side is welded by two round bars and " mesh " type device, " mesh " type limiting device two
A fixed point is respectively set among root elongate rod, fixed point both ends are connect with spring one end respectively, and spring pocket is on stock, the other end
Connect with hyphen bar among " mesh " type device, hyphen bar is screw rod, it is uniformly distributed on every hyphen bar there are two nut；The fixation
Bolt is to weld spring by screw rod end.
2. test specimen deformation measurement auxiliary system in compression test according to claim 1, which is characterized in that it is described it is upper about
Beam frame 1-1, four long side side on both sides, which are opened there are two symmetrical bolt hole, to be completed for completing square-section specimen test
When the specimen test of square-section, the symmetrical screw hole and sample contacts of long side are passed through with eight fixing bolts；In four short sides
Between position respectively open a bolt hole for completing circular cross-section specimen test, when completing circular cross-section specimen test, with four
Fixing bolt passes through short side screw hole and sample contacts；Respectively have among four long side top surfaces a rectangle air level for confirm
It is horizontal to constrain frame 1-1 installation；It is to be used for and upper positioning device that, which respectively there is a positioning screw hole in two symmetrical long side sides middle part position,
1-2-1 is connected with upper positioning device 1-2-2.
3. test specimen deformation measurement auxiliary system in compression test according to claim 1, which is characterized in that it is described it is lower about
Beam frame 2-1, four long side side on both sides, which are opened there are two symmetrical bolt hole, to be completed for completing square-section specimen test
When the specimen test of square-section, the symmetrical screw hole and sample contacts of long side are passed through with eight fixing bolts；In four short sides
Between position respectively open a bolt hole for completing circular cross-section specimen test, when completing circular cross-section specimen test, with four
Fixing bolt passes through short side screw hole and sample contacts；Respectively have among four long side top surfaces a rectangle air level for confirm about
It is horizontal that beam frame pacifies 2-1 dress；It is to be used for and lower positioning device 2- that, which respectively there is a positioning screw hole in two symmetrical long side sides middle part position,
2-1 is connected with lower positioning device 2-2-2.
4. test specimen deformation measurement auxiliary system in compression test according to claim 1, which is characterized in that described is lower fixed
" mesh " type limiting device on the device 2-2-1 of position, the spring covered in two elongate rods is for limiting measuring instrument stock direction
Position and fixation, the nut on hyphen bar are used to limit position and the fixation in measuring instrument hyphen bar direction；The measuring instrument
Device is to may be used to be installed on lower positioning device 2-2-1 for measuring the displacement meter of displacement in the market.
5. test specimen deformation measurement auxiliary system in compression test according to claim 1, which is characterized in that described is lower fixed
" mesh " type limiting device on the device 2-2-2 of position, the spring covered in two elongate rods is for limiting measuring instrument stock direction
Position and fixation, the nut on hyphen bar are used to limit position and the fixation in measuring instrument hyphen bar direction；The measuring instrument
Device is to may be used to be installed on lower positioning device 2-2-2 for measuring the displacement meter of displacement in the market.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910201185.5A CN109765104B (en) | 2019-03-15 | 2019-03-15 | Test piece deformation measurement auxiliary system in compression test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910201185.5A CN109765104B (en) | 2019-03-15 | 2019-03-15 | Test piece deformation measurement auxiliary system in compression test |
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| Publication Number | Publication Date |
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| CN109765104A true CN109765104A (en) | 2019-05-17 |
| CN109765104B CN109765104B (en) | 2024-01-30 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005221275A (en) * | 2004-02-04 | 2005-08-18 | Taisei Corp | Test piece restraining device |
| CN102636394A (en) * | 2012-05-08 | 2012-08-15 | 中国建筑材料科学研究总院 | Compressive stress loading and deformation measurement device and measurement method for deformation of test piece under compressive stress |
| CN103592184A (en) * | 2013-11-11 | 2014-02-19 | 华北电力大学 | Static compression/tensile elastic modulus test device for cement-based materials |
| 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 |
| CN105891012A (en) * | 2016-03-30 | 2016-08-24 | 西华大学 | Portable shearing device |
| CN206990339U (en) * | 2017-07-07 | 2018-02-09 | 青岛科技大学 | A kind of During Geotechnical Tests test specimen radial displacement measurement apparatus |
| CN210719947U (en) * | 2019-03-15 | 2020-06-09 | 南京林业大学 | Test piece deformation measurement auxiliary device in compression test |
-
2019
- 2019-03-15 CN CN201910201185.5A patent/CN109765104B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005221275A (en) * | 2004-02-04 | 2005-08-18 | Taisei Corp | Test piece restraining device |
| CN102636394A (en) * | 2012-05-08 | 2012-08-15 | 中国建筑材料科学研究总院 | Compressive stress loading and deformation measurement device and measurement method for deformation of test piece under compressive stress |
| CN103592184A (en) * | 2013-11-11 | 2014-02-19 | 华北电力大学 | Static compression/tensile elastic modulus test device for cement-based materials |
| 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 |
| CN105891012A (en) * | 2016-03-30 | 2016-08-24 | 西华大学 | Portable shearing device |
| CN206990339U (en) * | 2017-07-07 | 2018-02-09 | 青岛科技大学 | A kind of During Geotechnical Tests test specimen radial displacement measurement apparatus |
| CN210719947U (en) * | 2019-03-15 | 2020-06-09 | 南京林业大学 | Test piece deformation measurement auxiliary device in compression test |
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| CN109765104B (en) | 2024-01-30 |
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