CN106018076A - Device and method for measuring static compression strain of concrete - Google Patents
Device and method for measuring static compression strain of concrete Download PDFInfo
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- CN106018076A CN106018076A CN201610465893.6A CN201610465893A CN106018076A CN 106018076 A CN106018076 A CN 106018076A CN 201610465893 A CN201610465893 A CN 201610465893A CN 106018076 A CN106018076 A CN 106018076A
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- 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
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- 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
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- 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 discloses a device and a method for measuring static compression strain of concrete. The device comprises four measuring points, four adjusting screws, four nuts and two measuring point locating devices, wherein each measuring point adopts a T-shaped structure formed by a fixing plate and a supporting plate; the middle of each adjusting screw is arranged in a threaded hole of one supporting plate in a penetrating manner, a pit is formed in the middle of the outer end surface of the adjusting screw, and the adjusting screw is sleeved with one nut at the outer end part; each measuring point locating device adopts a vertical platy structure, the upper end, the lower end and one side edge vertically bend in the same direction to form borders, the upper part and the lower part of the other side edge are recessed inwards respectively to form locating grooves allowing insertion of the rear parts of the supporting plates on the corresponding measuring points. The device and the method for measuring the static compression strain of the concrete have the following advantages: 1, the process is simple and convenient, and rapid locating is realized; 2, the measuring points are fixed firmly without sliding, and test data are accurate; 3, the workload of concrete member tests is reduced, and the working efficiency is increased.
Description
Technical field
The invention belongs to mechanical performance of concrete experimental technique field, particularly relate to a kind of measurement concrete in static
The device and method of power compressive strain.
Background technology
The most conventional precast prestressed concrete component mainly includes railway prefabricated concrete box type girder, railway
The T-shaped beam of precast concrete, railway concrete pre stressed concrete sleeper and highway prestressed concrete beam.To this
Before a little concrete component Shi Hanzhang, it is desirable to the stress deformation of concrete component can not be excessive, i.e. coagulation
The static(al) pressurized elastic modelling quantity of soil component cannot be less than setting, therefore before making concrete component, it is necessary to
The test specimen using identical concrete material to make is carried out axial compressive strength and the measurement of static(al) compressive strain.
Fig. 1 is the most conventional a kind of Light deformation measuring instrument structural side view.Fig. 2 is that the Light deformation in Fig. 1 is measured
Instrument structure top view.As shown in Figure 1 and Figure 2, this Light deformation measuring instrument mainly include ring 1, lower ring 2,
Multiple fixed screws 3 and two amesdials 4；Wherein go up to extend through on ring 1 and lower ring 2 and multiple fixing is set
Screw 3.By the top and the bottom, four sides of square bodily form concrete in static power pressurized elastic modelling quantity test specimen 5 during test
Do not utilize four fixed screws 3 to clamp, and amesdial 4 is stuck in the way of telescopic movable end is downward
Between ring 1 and lower ring 2.But, there is following point in this Light deformation measuring instrument: is carrying out substantial amounts of mixing
During solidifying soil static(al) compressive strain test, the Light deformation measuring instrument dismounting of this structure is relatively complicated, disassembly and assembly time
Longer, and when utilizing fixed screw 3 that concrete static(al) pressurized elastic modelling quantity test specimen 5 is fixed, Gu
Fixed point loosens sometimes, again can only be fixed this test specimen in this case, then restarts test,
Therefore add the experiment work time, reduce work efficiency, and the life of concrete component can be affected undoubtedly
Produce speed.
Summary of the invention
In order to solve the problems referred to above, it is an object of the invention to provide a kind of measurement concrete static(al) compressive strain
Device and method.
In order to achieve the above object, the device measuring concrete static(al) compressive strain that the present invention provides includes four
Individual measuring point, four adjustment screws, four nuts and two measuring point positioners；Wherein measuring point is by fixed plate
The T-shaped structure constituted with gripper shoe, wherein the back side of fixed plate is fixed on concrete static(al) pressurized elastic modelling quantity
On the side of test specimen, gripper shoe is horizontally disposed with, and middle part is formed with a screw；Each concrete static(al)
On pressurized elastic modelling quantity test specimen, two relative side surface upper part and bottom are respectively equipped with a measuring point；Each adjustment
The middle part of screw is run through in the screw being arranged in a gripper shoe, and adjusts shape in the middle part of the outer face of screw
Cheng Youyi pit, outer end is cased with a nut simultaneously；Measuring point positioner is vertically disposed tabular knot
Structure, upper and lower side and a lateral edges vertically bend to same direction and form edge, the top and the bottom at opposite side edge
Depression forms one for the locating slot inserting measuring point upper backup pad rear portion respectively inwards.
The width of described locating slot is equal to the width of gripper shoe equal to the thickness of gripper shoe, the length of locating slot,
The distance of two locating slot centreline spaces is 150mm.
Position on described measuring point positioner between midpoint, flute length limit to measuring point positioner opposite side edge away from
From the half equal to the concrete static(al) pressurized elastic modelling quantity test specimen side length of side.
The method measuring concrete static(al) compressive strain that the present invention provides includes the following step carried out in order
Rapid:
1) two location rear portion of two measuring point upper backup pads being respectively inserted on a measuring point positioner
In groove, and on same observation station positioner, the pit of the adjustment of two in two measuring points screw is oppositely arranged,
Ensure to adjust screw contrary with edge setting direction for measuring point positioner simultaneously；
2) 502 glue are smeared at the back side at measuring point upper mounted plate, then by two measuring point positioners together with it
On measuring point lie on two opposite flanks of concrete static(al) pressurized elastic modelling quantity test specimen, and ensure measuring point
Edge on the upper and lower side of positioner and a lateral edges is upper and lower with concrete static(al) pressurized elastic modelling quantity test specimen
End face and a side are adjacent to, and press measuring point the most simultaneously and make it try with concrete static(al) pressurized elastic modelling quantity
Part surface cements；
3) by measuring point positioner in the way of being parallel to concrete static(al) pressurized elastic modelling quantity test specimen side outside
Skid off, so that measuring point positioner and measuring point and adjust screw and nut separates；
4) by amesdial by its telescopic movable end upwards in the way of be stuck in two relative pits adjusting screws
In, then utilize the mode rotating adjustment screw to regulate the distance between two pits, until the finger of amesdial
Pin just starts to rotate, and stops adjusting the rotation of screw, fastening nut, at this moment can proceed by test.
The device and method measuring concrete static(al) compressive strain that the present invention provides has the advantage that
1, process is easy, quickly positions.
2, ensureing that measuring point fixation is not slided, test data is accurate.
3, reduce the workload of concrete component test, improve work efficiency.
Accompanying drawing explanation
Fig. 1 is the most conventional a kind of Light deformation measuring instrument structural side view.
Fig. 2 is the Light deformation measuring instrument structure top view in Fig. 1.
Measuring Point Structure front view in the device of the measurement concrete static(al) compressive strain that Fig. 3 provides for the present invention.
Measuring Point Structure side view in the device of the measurement concrete static(al) compressive strain that Fig. 4 provides for the present invention.
Measuring point positioning device structure in the device of the measurement concrete static(al) compressive strain that Fig. 5 provides for the present invention
Front view.
Measuring point positioning device structure in the device of the measurement concrete static(al) compressive strain that Fig. 6 provides for the present invention
Side view.
The device measuring concrete static(al) compressive strain that Fig. 7 provides for the present invention uses state front view.
The device measuring concrete static(al) compressive strain that Fig. 8 provides for the present invention uses side view of the state.
Detailed description of the invention
With specific embodiment offer of the present invention measured the dress of concrete static(al) compressive strain below in conjunction with the accompanying drawings
Put and method is described in detail.The parts identical with prior art use identical drawing reference numeral.
As shown in Fig. 3 Fig. 8, the device measuring concrete static(al) compressive strain that the present invention provides includes four
Measuring point 6, four adjusts 7, four nuts 8 of screw and two measuring point positioners 9；Wherein measuring point 6 be by
The T-shaped structure that fixed plate 10 and gripper shoe 11 are constituted, wherein the back side of fixed plate 10 is fixed on concrete in static
On the side of power pressurized elastic modelling quantity test specimen 5, gripper shoe 11 is horizontally disposed with, and middle part is formed with a spiral shell
Hole；On each concrete static(al) pressurized elastic modelling quantity test specimen 5, two relative side surface upper part and bottom set respectively
There is a measuring point 6；The middle part of each adjustment screw 7 is run through in the screw being arranged in a gripper shoe 11,
And adjusting and be formed with a pit in the middle part of the outer face of screw 7, outer end is cased with a nut 8 simultaneously；Survey
Location device 9 is vertically disposed platy structure, and upper and lower side and a lateral edges vertically bend to same direction
And forming edge 12, the top and the bottom at opposite side edge cave inward formation one respectively for inserting measuring point 6
The locating slot 13 at gripper shoe 11 rear portion.
The width of described locating slot 13 is equal to the thickness of gripper shoe 11, and the length of locating slot 13 is equal to supporting
The width of plate 11, the distance of two locating slot 13 centreline spaces is 150mm.
On described measuring point positioner 9, midpoint, locating slot 13 long limit is to measuring point positioner 9 opposite side edge
Between distance equal to the half of the concrete static(al) pressurized elastic modelling quantity test specimen 5 side length of side.
The method measuring concrete static(al) compressive strain that the present invention provides includes the following step carried out in order
Rapid:
1) rear portion of two measuring point 6 upper backup pads 11 is respectively inserted on a measuring point positioner 9
In two locating slots 13, and on same observation station positioner 9, two in two measuring points 6 adjust screw 7
Pit be oppositely arranged, simultaneously ensure adjust screw 7 set for measuring point positioner 9 with edge 12
Put in opposite direction；
2) 502 glue are smeared at the back side at measuring point 6 upper mounted plate 10, then by two measuring point positioners 9
Lie on two opposite flanks of concrete static(al) pressurized elastic modelling quantity test specimen 5 together with measuring point 6 thereon,
And ensure that the edge 12 on the upper and lower side of measuring point positioner 9 and a lateral edges is elastic with concrete static(al) pressurized
The upper and lower end face of modulus test specimen 5 and a side are adjacent to, and press measuring point 6 the most simultaneously and make itself and concrete
Static(al) pressurized elastic modelling quantity test specimen 5 surface cements；
3) by measuring point positioner 9 in the way of being parallel to concrete static(al) pressurized elastic modelling quantity test specimen 5 side
Outwards skid off, so that measuring point positioner 9 and measuring point 6 and adjust screw 7 and nut 8 separates；
4) by amesdial 4 by its telescopic movable end upwards in the way of be stuck in two and relative adjust the recessed of screws 7
In hole, the mode rotating adjustment screw 7 is then utilized to regulate the distance between two pits, until amesdial 4
Pointer just started rotate, stop adjust screw 7 rotation, fastening nut 8, at this moment can proceed by examination
Test.
Claims (4)
1. the device measuring concrete static(al) compressive strain, it is characterised in that: described measurement concrete
The device of static(al) compressive strain include four measuring points (6), four adjust screw (7), four nuts (8) and
Two measuring point positioners (9)；Wherein measuring point (6) is to be made up of fixed plate (10) and gripper shoe (11)
T-shaped structure, wherein the back side of fixed plate (10) is fixed on concrete static(al) pressurized elastic modelling quantity test specimen (5
Side on, gripper shoe (11) is horizontally disposed with, and middle part is formed with a screw；Each concrete in static
Upper two the relative side surface upper part of power pressurized elastic modelling quantity test specimen (5) and bottom are respectively equipped with a measuring point (6)；
The middle part of each adjustment screw (7) is run through in the screw being arranged on a gripper shoe (11), and adjusts
Being formed with a pit in the middle part of the outer face of screw (7), outer end is cased with a nut (8) simultaneously；Measuring point
Positioner (9) is vertically disposed platy structure, and upper and lower side and a lateral edges vertically bend to same direction
And forming edge (12), the top and the bottom at opposite side edge cave inward formation one respectively for inserting measuring point (6)
The locating slot (13) at upper backup pad (11) rear portion.
The device of measurement concrete static(al) compressive strain the most according to claim 1, it is characterised in that:
The width of described locating slot (13) is equal to the thickness of gripper shoe (11), the length etc. of locating slot (13)
In the width of gripper shoe (11), the distance of two locating slot (13) centreline spaces is 150mm.
The device of measurement concrete static(al) compressive strain the most according to claim 1, it is characterised in that:
The upper midpoint, locating slot (13) long limit of described measuring point positioner (9) to measuring point positioner (9) another
The intermarginal distance of side is equal to the half of concrete static(al) pressurized elastic modelling quantity test specimen (5) the side length of side.
4. the method utilizing measurement device concrete static(al) compressive strain described in claim 1, it is special
Levy and be: described method includes the following step carried out in order:
1) rear portion of two measuring points (6) upper backup pad (11) is respectively inserted into a measuring point positioner
(9) in two locating slots (13) on, and upper two measuring points (6) of same observation station positioner (9)
In two adjustment screw (7) pits be oppositely arranged, simultaneously ensure adjust screw (7) with edge (12)
For measuring point positioner (9), setting direction is contrary；
2) 502 glue are smeared at the back side at measuring point (6) upper mounted plate (10), then that two measuring points are fixed
Position device (9) lies in concrete static(al) pressurized elastic modelling quantity test specimen (5) together with measuring point thereon (6)
On two opposite flanks, and ensure the edge (12) on the upper and lower side of measuring point positioner (9) and a lateral edges
It is adjacent to upper and lower end face and a side of concrete static(al) pressurized elastic modelling quantity test specimen (5), presses the most simultaneously
Measuring point (6) is pressed to make it cement with concrete static(al) pressurized elastic modelling quantity test specimen (5) surface；
3) by measuring point positioner (9) to be parallel to concrete static(al) pressurized elastic modelling quantity test specimen (5) side
Mode outwards skid off, so that measuring point positioner (9) and measuring point (6) and adjust screw (7) and nut
(8) separate；
4) by amesdial (4) by its telescopic movable end upwards in the way of be stuck in two relative adjustment screws (7)
Pit in, then utilize rotate adjust screw (7) mode regulate the distance between two pits, until
The pointer of amesdial (4) just starts to rotate, the rotation of stopping adjustment screw (7), fastening nut (8),
At this moment test can be proceeded by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610465893.6A CN106018076A (en) | 2016-06-23 | 2016-06-23 | Device and method for measuring static compression strain of concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610465893.6A CN106018076A (en) | 2016-06-23 | 2016-06-23 | Device and method for measuring static compression strain of concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106018076A true CN106018076A (en) | 2016-10-12 |
Family
ID=57086850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610465893.6A Pending CN106018076A (en) | 2016-06-23 | 2016-06-23 | Device and method for measuring static compression strain of concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106018076A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03142338A (en) * | 1989-10-30 | 1991-06-18 | Fujitsu Ltd | Deformation extent measuring instrument |
| CN101979990A (en) * | 2010-10-15 | 2011-02-23 | 中国建筑材料科学研究总院 | Self-positioning detachable concrete durability test stress loading device |
| CN201764956U (en) * | 2010-09-17 | 2011-03-16 | 中建商品混凝土成都有限公司 | Positioning device for measuring concrete expansion and contraction deformation by using noncontact method |
| 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 |
| CN202599322U (en) * | 2012-05-02 | 2012-12-12 | 厦门市建筑科学研究院集团股份有限公司 | Concrete creep deformation measuring device |
| CN202869894U (en) * | 2012-09-23 | 2013-04-10 | 中铁九局集团工程检测试验有限公司 | Concrete elasticity modulus determinator |
| CN104122201A (en) * | 2014-07-01 | 2014-10-29 | 三峡大学 | Device for measuring bond stress and slippage of reinforced concrete |
| CN204359261U (en) * | 2015-01-07 | 2015-05-27 | 长安大学 | A kind of measurement mechanism for sheet material welding Light deformation |
| CN204666444U (en) * | 2015-05-21 | 2015-09-23 | 上海建工材料工程有限公司 | A kind of testing apparatus of modulus of elasticity of concrete |
| CN205826410U (en) * | 2016-06-23 | 2016-12-21 | 中铁六局集团有限公司 | A kind of device measuring concrete static(al) compressive strain |
-
2016
- 2016-06-23 CN CN201610465893.6A patent/CN106018076A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03142338A (en) * | 1989-10-30 | 1991-06-18 | Fujitsu Ltd | Deformation extent measuring instrument |
| CN201764956U (en) * | 2010-09-17 | 2011-03-16 | 中建商品混凝土成都有限公司 | Positioning device for measuring concrete expansion and contraction deformation by using noncontact method |
| CN101979990A (en) * | 2010-10-15 | 2011-02-23 | 中国建筑材料科学研究总院 | Self-positioning detachable concrete durability test stress loading device |
| CN202599322U (en) * | 2012-05-02 | 2012-12-12 | 厦门市建筑科学研究院集团股份有限公司 | Concrete creep deformation measuring 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 |
| CN202869894U (en) * | 2012-09-23 | 2013-04-10 | 中铁九局集团工程检测试验有限公司 | Concrete elasticity modulus determinator |
| CN104122201A (en) * | 2014-07-01 | 2014-10-29 | 三峡大学 | Device for measuring bond stress and slippage of reinforced concrete |
| CN204359261U (en) * | 2015-01-07 | 2015-05-27 | 长安大学 | A kind of measurement mechanism for sheet material welding Light deformation |
| CN204666444U (en) * | 2015-05-21 | 2015-09-23 | 上海建工材料工程有限公司 | A kind of testing apparatus of modulus of elasticity of concrete |
| CN205826410U (en) * | 2016-06-23 | 2016-12-21 | 中铁六局集团有限公司 | A kind of device measuring concrete static(al) compressive strain |
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Application publication date: 20161012 |