CN106248914A - The separable concrete temperature stress testing machine vibrated of mould - Google Patents
The separable concrete temperature stress testing machine vibrated of mould Download PDFInfo
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- CN106248914A CN106248914A CN201610632642.2A CN201610632642A CN106248914A CN 106248914 A CN106248914 A CN 106248914A CN 201610632642 A CN201610632642 A CN 201610632642A CN 106248914 A CN106248914 A CN 106248914A
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- 239000004567 concrete Substances 0.000 title claims abstract description 150
- 238000009662 stress testing Methods 0.000 title claims abstract description 31
- 238000012360 testing method Methods 0.000 claims abstract description 63
- 239000002689 soil Substances 0.000 claims description 23
- 238000006073 displacement reaction Methods 0.000 claims description 20
- 229910052738 indium Inorganic materials 0.000 claims description 6
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 7
- 238000005266 casting Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009933 burial Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000003556 assay Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000004540 pour-on Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N33/383—Concrete or cement
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Ceramic Engineering (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses the separable concrete temperature stress testing machine vibrated of a kind of mould, the concrete sample mould removably connected including testing machine main frame and deformation measuring device with described testing machine main frame.The separable concrete temperature stress testing machine vibrated of mould that the present invention provides, facilitate concrete sample mould and the installation of testing machine main frame and dismounting, concrete sample mould release can individually carry out pouring vibrating after getting off, reach to vibrate after prescription, it is installed on testing machine main frame carry out associated temperature stress test again, greatly improved the pouring quality of concrete, make the credibility of result of the test and analogy more preferable.
Description
Technical field
The present invention relates to concrete temperature stress and deformation test technical field, mould is separable vibrates particularly to a kind of
Concrete temperature stress testing machine.
Background technology
Concrete temperature stress testing machine (TSTM) have can measure simultaneously concrete bullet mould, creep, relax, ftracture should
The function of the multiple material mechanics parameters such as power and feature breaking temperature, can set up and work in laboratory simulation various boundary conditions
Contact between journey structure.Concrete temperature stress testing machine (TSTM) is the effective of a kind of overall merit crack-resistant performance of concrete
Assay device.
Be all fixing non-removable between current concrete test machine and test piece mould, i.e. the test specimen of concrete will be
Pour on testing machine, by modes such as hand-held vibrating spears, the concrete in test piece mould is vibrated.It is known that it is mixed
Solidifying soil is a kind of synthetic material, has great natural discreteness, and the size of concrete temperature stress test test specimen is relatively big,
It mostly is 150mm*150mm*1500mm, testing machine uses the mode of hand-held vibrating spear tend not to make concrete obtain fully
Vibrate, and then affect the quality of concrete；And vibrate for a long time and also can affect the performance of testing machine.Although at different batches
Can control identical match ratio in process of the test, but the quality of concrete is the best, result of the test nature difference is bigger.Due to
Vibrating poor quality, the credibility causing result of the test is low, and the result of the test analogy of different batches concrete is poor.Additionally
Owing to concrete quality is bad, current concrete temperature stress testing machine is all tested just for homogeneous concrete, the most not
The associated temperature stress test of bond between fresh and hardened concretes can be carried out.Credible, analogy and expansion for guarantee test result
The New-old concrete Research Ability of exhibition TSTM, it is necessary to assure the pouring quality of concrete.
Summary of the invention
The technical problem to be solved is to provide the separable concrete temperature stress test vibrated of a kind of mould
Machine, to improve the pouring quality of concrete, it is ensured that the precision of testing machine test result.
For solving above-mentioned technical problem, the invention provides the separable concrete temperature stress test vibrated of a kind of mould
Machine, including:
Testing machine main frame, including the fixing end of fixation clamp rostral, active chuck side is fixing holds, and by described fixation clamp rostral
Fixing a pair feed rod connected of end is fixed in fixing end and active chuck side, inside the fixing end of described fixation clamp rostral by bolt even
Connect fixing end universal joint, inside the fixing end in described active chuck side, be bolted movable end universal joint；
Concrete sample mould, including fixed chuck, active chuck, is arranged between described fixed chuck and active chuck
Concreting district, described fixed chuck is spirally connected with described fixing end universal joint, described active chuck and described movable end ten thousand
It is spirally connected to joint；
Deformation measuring device, including being arranged on the upper surface deformation measuring device on top, described concreting district, and sets
Put the sidepiece deformation measuring device in both sides, described concreting district.
Further, connecting servomotor outside the fixing end in described active chuck side, described servomotor is by bolt even
Connecing load transducer, described load transducer is bolted described movable end universal joint.
Further, described concreting district includes bottom template, and is connected to the side of template both sides, described bottom
Portion's template, the two ends of described bottom template and side template are connected with described fixed chuck and active chuck.
Further, chuck positioning tool is set, between described side template between described fixed chuck and active chuck
Side template positioning tool is set.
Further, described fixed chuck and active chuck being respectively provided with soil font positioning tool, described soil font is fixed
The rear portion of position frock is separately fixed on described fixed chuck and active chuck, and the front part sides of described soil font positioning tool is divided
It is not fixed in described side template.
Further, described upper surface deformation measuring device includes being separately positioned on described soil font positioning tool end
The pre-buried bar of upper surface, the upper surface being connected between the pre-buried bar of described upper surface is surveyed deformation and is extended bar and be positioned close to described
Upper surface displacement transducer on the pre-buried bar of upper surface of active chuck.
Further, described sidepiece deformation measuring device includes that two sidepieces being arranged in each described side template are pre-
The sidepiece bury bar, being connected between the pre-buried bar in described both sides is surveyed to deform and is extended bar and be positioned close to described active chuck
Side displacement sensor on the pre-buried bar of sidepiece.
Further, the pre-buried bar of described upper surface is screwed onto in the screwed hole of described soil font positioning tool end, described
The lower end of the pre-buried bar of upper surface arranges upper surface cross built-in fitting, and the top of the pre-buried bar of described upper surface arranges and is available on described
Surface is surveyed and is deformed the unthreaded hole that bar of extending passes, and the survey of described upper surface is deformed bar of extending and is connected to by the unthreaded hole of the pre-buried bar of upper surface
Between two pre-buried bars of upper surface, the top of the pre-buried bar of described upper surface is provided with for clamping described upper surface displacement transducer
Jaws, it is indium steel bar that described upper surface surveys deformation bar of extending.
Further, the pre-buried bar of described sidepiece is fixed on the spiral shell in described side template by the threaded collar that middle part is arranged
In pit, the top of the pre-buried bar of described sidepiece arranges sidepiece cross built-in fitting, and the afterbody of the pre-buried bar of described sidepiece arranges and is available for
Described sidepiece is surveyed and is deformed the unthreaded hole that bar of extending passes, and the survey of described sidepiece is deformed bar of extending and is connected to by the unthreaded hole of the pre-buried bar of sidepiece
Between two pre-buried bars of sidepiece, the tail end of the pre-buried bar of described sidepiece is provided with the folder for clamping described side displacement sensor
Mouthful, the pre-buried bar of described sidepiece lifts fixing by being arranged on the spring of side template upper end-face edge, and described sidepiece is surveyed deformation and extended
Bar is indium steel bar.
Further, the centre-height position in described side template vertical direction is provided with horizontal lines, described side
Center on the horizontal length direction of portion's template is provided perpendicular to the dividing plate slot of described side template, and described dividing plate is inserted
Dividing plate is set in groove.
The separable concrete temperature stress testing machine vibrated of mould that the present invention provides, its testing machine main frame and concrete
Test piece mould is linked together by universal joint, and convenient installation and dismounting, the concrete sample mould after dismounting can be individually in reality
Test room pour and vibrate on a vibration table, after the prescription that reaches to vibrate, then be installed on testing machine main frame carry out associated temperature
Stress test, overcomes traditional concrete temperature stress testing machine and can not the most individually vibrate after concreting
Drawback, greatly improved the pouring quality of concrete, make the credibility of result of the test and analogy more preferable.Further, originally
The concrete temperature stress testing machine that invention provides, by the way of pre-buried bar and deformation measuring device positioning tool combine,
Make the concrete deformation precision recorded higher, and the true strain of concrete can be recorded.
Accompanying drawing explanation
The structural representation of the separable concrete temperature stress testing machine vibrated of mould that Fig. 1 provides for the embodiment of the present invention
Figure；
The concrete examination of the separable concrete temperature stress testing machine vibrated of mould that Fig. 2 provides for the embodiment of the present invention
The structural representation of part mould；
The concrete examination of the separable concrete temperature stress testing machine vibrated of mould that Fig. 3 provides for the embodiment of the present invention
The side view of part mould；
The concrete examination of the separable concrete temperature stress testing machine vibrated of mould that Fig. 4 provides for the embodiment of the present invention
The A-A profile of part mould.
Description of reference numerals:
1-testing machine main frame 2-concrete sample mould 3-deformation measuring device 4-horizontal location screwed hole 11-fixes
Fixing end 12-active chuck side, chuck side fixing end 13-feed rod 14-fixing end universal joint 15-movable end universal joint 16-
24-chuck location, servomotor 17-load transducer 21-fixed chuck 22-active chuck 23-concreting district work
Dress 25-side template positioning tool 26-soil font positioning tool 27-dividing plate slot 28-dividing plate 31-upper surface deformation is surveyed
Bottom amount device 32-sidepiece deformation measuring device 231-side template 232-on template 311-upper surface pre-buried bar 312-
Surface is surveyed deformation and is extended the bar 313-upper surface displacement transducer 314-upper surface cross built-in fitting pre-buried bar of 321-sidepiece
322-sidepiece is surveyed deformation and is extended bar 323-side displacement sensor 324-sidepiece cross built-in fitting 325-threaded collar
326-spring 327-spring adjustment screw 328-regulates spring
Detailed description of the invention
See Fig. 1, the separable concrete temperature stress testing machine vibrated of a kind of mould that the embodiment of the present invention provides, bag
Include testing machine main frame 1, concrete sample mould 2 and deformation measuring device 3.Wherein, testing machine main frame 1 includes fixation clamp rostral
Fixing end 11, end 12 is fixed in active chuck side, and it is fixing even that fixing for fixation clamp rostral end 11 and active chuck side are fixed end 12
A pair feed rod 13 connect, fixation clamp rostral is fixed the inner side of end 11 and is bolted fixing end universal joint 14, active chuck side
The inner side of fixing end 12 is bolted movable end universal joint 15, and the outside connection of end 12 is fixed in active chuck side servo electricity
Machine 16, servomotor 16 is bolted load transducer 17, and load transducer 17 is by bolt and movable end universal joint 15
Connect.Concrete sample mould 2 includes fixed chuck 21, active chuck 22, and is arranged on fixed chuck 21 and active chuck 22
Between concreting district 23, the end of fixed chuck 21 is provided with horizontal location screwed hole (not shown), fixing end
Universal joint 14 is screwed onto on the horizontal location screwed hole of fixed chuck 21, makes the fixation clamp of fixed chuck 21 and testing machine main frame 1
Rostral fixing end 11 connection.The end of active chuck 22 is provided with horizontal location screwed hole 4, and movable end universal joint 15 is screwed onto water
On flat positioning spiro pit 4, active chuck 22 end 12 fixing with the active chuck side of testing machine main frame 1 is made to be connected.Due to fixing end
Universal joint 14 and the horizontal location screw hole of fixed chuck 21 and make the fixing end of fixed chuck 21 and fixation clamp rostral 11 even
Connect, make active chuck 22 and movable folder owing to the horizontal location screwed hole 4 of movable end universal joint 15 with active chuck 22 is spirally connected
Rostral fixing end 12 connection, therefore, can install and dismantle between concrete sample mould 2 and testing machine main frame 1 easily.Become
Shape measurement apparatus 3 includes being arranged on the upper surface deformation measuring device 31 on top, concreting district 23 and is arranged on concrete and waters
Build the sidepiece deformation measuring device 32 of both sides, district 23.
Seeing Fig. 2, concreting district 23 includes bottom template 232 and a pair side template 231, bottom template 232
Bottom is provided with slideway, and side template 231 is positioned at the both sides of bottom template 232, and connects with the slideway bottom bottom template 232
Connecing, the two ends of bottom template 232 are connected with fixed chuck 21 and active chuck 22 by bolt respectively, the two of side template 231
End connection fixing clamp head 21 and active chuck 22, the side template 231 of bottom template 232 and both sides and fixed chuck 21 respectively
Concreting district 23 is surrounded with active chuck 22.Owing to side template 231 is arranged on the slideway bottom the template 232 of bottom,
When concrete sample being carried out after concrete final set temperature stress test, can be by the side template 231 of bottom template 232 both sides
Move 3-5cm the most laterally, affect concrete temperature to avoid concrete sample to contact generation friction with side template 231
The accuracy of stress test data.
During vibrating after concrete sample mould 2 placing concrete, in order to ensure the stable jail of concrete sample mould 2
Gu, and also for preventing concreting district during vibrating from deforming, spillage phenomenon occurs, in fixed chuck 21 and activity
Connecting between chuck 22 and have a chuck positioning tool 24, connecting between side template 231 has side template positioning tool 25.
Wherein, fixed chuck 21 and active chuck 22 can be fixed together, as the present invention by chuck positioning tool 24 firmly
A kind of detailed description of the invention, chuck positioning tool 24 is made up of two metal optical wands and two pieces of metallic plates, two metal optical wands
Two ends be separately fixed at the two ends of two metallic plates, two metallic plates are separately fixed at fixed chuck 21 and movable folder by bolt again
The surface of 22, thus play fixed chuck 21 and active chuck 22 further firm effect.Side template positioning tool
The polylith metal connecting plate that 25 are attached between both sides template 231, as a kind of detailed description of the invention of the present invention, sidepiece
Template Location frock 25 includes two nugget genus connecting plates, the suitable position being separately fixed between both sides template 231 by bolt
Put.
It addition, be respectively arranged with soil font positioning tool 26, soil font location work on fixed chuck 21 and active chuck 22
Fill the rear portion of 26 to be separately fixed on fixed chuck 21 and active chuck 22 by bolt, the front portion two of soil font positioning tool 26
Side is bolted in the side template 231 of both sides respectively.Wherein, upper surface deformation measuring device 31 is fixed on two soil words
On shape positioning tool 26.
Seeing Fig. 3 and Fig. 4, upper surface deformation measuring device 31 includes that the pre-buried bar of upper surface 311, upper surface are surveyed deformation and extended
Bar 312 and upper surface displacement transducer 313.The end of soil font positioning tool 26 is respectively arranged with bar 311 pre-buried with upper surface
The screwed hole of external diameter coupling, the pre-buried bar of upper surface 311 is screwed onto on the screwed hole of soil font positioning tool 26.In order to increase upper table
The pre-buried bar in face 311 and the contact area of concrete, be beneficial to preferably occur common eigenvector, on the pre-buried bar of upper surface 311 times
End is provided with upper surface cross built-in fitting 314.By the pre-buried bar of helical rotation upper surface 311, the pre-buried bar of upper surface 311 is made to exist
Move up and down in the screwed hole of soil font positioning tool 26, such that it is able to regulation upper surface cross built-in fitting 314 is to concrete
In precalculated position.It is provided with on the top of the pre-buried bar of upper surface 311 to survey for upper surface and deforms the unthreaded hole that bar 312 of extending passes,
Upper surface survey deforms the two ends of bar 312 of extending and is each passed through the unthreaded hole on the two pre-buried bars of upper surface 311, near fixed chuck 21
That one end upper surface survey deformation and extend in the unthreaded hole that bar 312 inserts on the pre-buried bar of upper surface 311, by the pre-buried bar of upper surface
Upper surface is surveyed deformation bar 312 of extending and is fixed by the downward trip bolt of 311 plan vertical, and upper surface is surveyed deformation and extended bar 312
Unthreaded hole on other end bar pre-buried with another upper surface 311 is slidably connected.The pre-buried bar of upper surface 311 near active chuck 22
Top be additionally provided with a jaws, upper surface displacement transducer 313 is clamped directly at the jaws on upper surface pre-buried bar 311 top
On, facilitate installation and the dismounting of upper surface displacement transducer 313.Upper table can be driven when concrete sample contraction or expansion deforms
Upper surface cross built-in fitting 314 common eigenvector of the pre-buried bar in face 311 and lower end thereof, the deformation of the pre-buried bar of upper surface 311 drives
Upper surface displacement transducer 313 deforms, such that it is able to measure the deformation values of concrete.Wherein, upper surface is surveyed deformation and is extended bar 312
The material big by elastic modelling quantity, linear expansion coefficient is the least is made, as a kind of detailed description of the invention of the present invention, upper surface
Survey deformation bar 312 of extending and use indium steel making, the precision of concrete temperature stress test determination can be greatly improved.
Sidepiece deformation measuring device 32 includes two the pre-buried bars of sidepiece 321 being inserted in the screwed hole of side template 231, connects
The sidepiece that is connected between the pre-buried bar in both sides 321 is surveyed deformation and is extended bar 322 and to be positioned close to the sidepiece of active chuck 22 pre-
Bury the side displacement sensor 323 on bar 321.Wherein, the middle part of the pre-buried bar of sidepiece 321 is bolted with two threaded collars 325, and two
Being cased with between individual threaded collar 325 regulating spring 328, the threaded collar 325 of inner side is screwed onto the screwed hole of side template 231
On, by two threaded collars 325 of the regulation position that is spirally connected on the pre-buried bar of sidepiece 321, the pre-buried bar of sidepiece 321 can be regulated and exist
Precalculated position in concrete.And tighten the threaded collar 325 of inner side and the combination dynamics of the screwed hole of side template 231,
It is possible to prevent at the screwed hole of side template 231 to occur spillage phenomenon when casting concrete.When needing after concrete hardening
When side template 231 being departed from concrete sample, first two threaded collars 325 can be regulated laterally 3～5cm, then
By the slide rail bottom bottom template 232, side template 231 is displaced outwardly 3～5cm, the de-of side template 231 can be completed
Mold process, thus do not affect the pre-buried bar of sidepiece 321 in the pre-aligned position of concrete.
In order to increase the contact area of the pre-buried bar of sidepiece 321 and concrete, it is beneficial to preferably occur common eigenvector, sidepiece
The top of pre-buried bar 321 is provided with sidepiece cross built-in fitting 324, and the afterbody of the pre-buried bar of sidepiece 321 is provided with and is available for sidepiece survey change
Shape is extended the unthreaded hole that bar 322 passes, and surveys deformation at sidepiece and extends that insert sidepiece near that one end of fixed chuck 21 pre-buried for bar 322
In unthreaded hole on bar 321, being fixed by the trip bolt of sidepiece pre-buried bar 321 end, sidepiece is surveyed and is deformed bar 322 of extending
Unthreaded hole on other end bar pre-buried with another sidepiece 321 is slidably connected.Tail near the pre-buried bar of sidepiece 321 of active chuck 22
End is provided with jaws, and side displacement sensor 323 is clamped directly in the jaws of the pre-buried bar of sidepiece 321, facilitates sidepiece displacement to pass
The installation of sensor 323 and dismounting.The pre-buried bar of sidepiece 321 and sidepiece cross can be driven when concrete sample contraction or expansion deforms
Shape built-in fitting 324 common eigenvector, the deformation of the pre-buried bar of sidepiece 321 drives side displacement sensor 323 to deform, such that it is able to measure
The deformation values of concrete.
It addition, be provided with spring adjustment screw 327 at side template 231 upper end-face edge, the upper end of spring 326 connects spring
Regulation bolt 327, the lower end of spring 326 is connected the pre-buried bar of sidepiece 321, is regulated the height of spring 326 by spring adjustment screw 327
Pre-buried for sidepiece bar 321 is lifted fixing by degree.Wherein, sidepiece surveys deformation bar 322 of extending is, linear expansion coefficient big by elastic modelling quantity
The least material is made, and as a kind of detailed description of the invention of the present invention, it is to use indium steel that sidepiece surveys deformation bar 322 of extending
Make, the precision of concrete temperature stress test determination can be greatly improved.
In order to position the interface of upper and lower two-layer New-old concrete, the centre-height in side template 231 vertical direction
Position is provided with horizontal lines, it is simple to determine the height of concreting for the first time during casting concrete.For position level
The interface location of the old and new two section concrete on length direction, the center on side template 231 horizontal length direction is arranged
There is a dividing plate slot 27 being perpendicular to side template 231, may be inserted into dividing plate 28 in dividing plate slot 27, at casting concrete
Time, the two section concrete test specimens that concrete can be divided in horizontal direction by dividing plate 28.
The mould present invention provided below by using method and the operation principle thereof of concrete temperature stress testing machine
The separable concrete temperature stress testing machine vibrated further is illustrated.
During use, fixing end universal joint 14 is laid down in the horizontal location screwed hole of fixed chuck 21, by movable end ten thousand
Lay down in the horizontal location screwed hole 4 of active chuck 22 to joint 15, rope hitch the vertical of concrete sample mould 2 two ends
Bolt ring 5, is sling concrete sample mould 2 by elevator, makes concrete sample mould 2 separate with testing machine main frame 1.
Soil font chuck positioning tool is installed between fixed chuck 21 and the active chuck 22 on concrete sample mould 2
26, and sidepiece Template Location frock 25 is installed between side template 231, to ensure that concrete sample mould 2 is in the process of vibrating
In will not deform spillage phenomenon.Then it is respectively mounted in the screwed hole of two native font chuck positioning tool 26 ends
The pre-buried bar in surface 311, the upper surface cross being regulated upper surface pre-buried bar 311 lower end by the rotation pre-buried bar of upper surface 311 is pre-
The embedded part 314 position in concreting district 23, makes upper surface cross built-in fitting 314 be positioned at predetermined burial place.
Screwed hole in the side template 231 of concrete sample mould 2 both sides is inserted into the pre-buried bar of sidepiece 321, will be screwed onto sidepiece
The threaded collar 325 of the inner side in two threaded collars 325 on pre-buried bar 321 is screwed onto on the screwed hole of side template 231,
Then the sidepiece cross built-in fitting 324 regulating sidepiece pre-buried bar 321 top by rotating the pre-buried bar of sidepiece 321 stretches into concrete
Position in pouring area 23, makes sidepiece cross built-in fitting 324 be positioned at predetermined burial place.Last at concrete sample mould
Casting concrete in tool 2.
Being put on the vibration table that frequency is 50 ± 3HZ by the concrete sample mould 2 having poured concrete and vibrate, vibration is held
Continue concrete surface pulp, stop vibrating after making the degree of compaction of concrete reach Standard for quality control of concrete (taking around
30s)。
Control servomotor 16 by the software of industrial PC to move horizontally, drive the fixing end 12 in active chuck side to move,
So that end 12 is fixed in active chuck side and fixation clamp rostral is fixed and reserved enough installing spaces between end 11.Then will vibrate
The concrete sample mould 2 of good concrete sample is lifted on testing machine main frame 1, and fixing end universal joint 14 is screwed onto fixation clamp
On the horizontal location screwed hole of 21, fixed chuck 21 and the fixing end 11 of fixation clamp rostral is made to be connected, by movable end universal joint 15
It is screwed onto on the horizontal location screwed hole 4 of active chuck 22, makes the fixing end 12 in active chuck 22 and active chuck side be connected, thus
Concrete sample mould 2 is made to link together with testing machine main frame 1.
After waiting the concrete final set in concrete sample mould 2, remove chuck positioning tool 24 and side template is fixed
Position frock 25, and the side template 231 of bottom template 232 both sides is moved the most laterally 3-5cm, then, at two upper surfaces
Install surface on pre-buried bar 311 to survey deformation and extend bar 312, and on upper surface pre-buried bar 311 top near active chuck 22
Install surface displacement sensor 313.Sidepiece survey deformation is installed on two pre-buried bars of sidepiece 321 in side template 231 draw
Boom 322, and at installation side position displacement sensor 323 on the pre-buried bar of sidepiece 321 of active chuck 22.Finally, phase is set
Close test parameters, carry out concrete temperature stress test.
When needing the temperature stress research experiment to New-old concrete, following method step can be taked:
When the temperature stress of the New-old concrete of two-layer up and down in the horizontal direction is tested, at concrete sample
Casting concrete in mould 2, after making the face that pours of concrete arrive the horizontal lines in side template 231, stops pouring, right
Lower-layer concrete is fully vibrated after reaching requirement, as the method previously described concrete sample mould 2 is assembled into testing machine main frame 1
On, lower-layer concrete sample is carried out maintenance and correlation test work.After the solidification of lower-layer concrete sample reaches predetermined age,
Separate concrete sample mould 2 and testing machine main frame 1, carry out on the basis of lower-layer concrete sample on the pouring of layer concrete
With vibrate, assemble concrete sample mould 2 and testing machine main frame 1 afterwards, after waiting upper strata concrete sample final set, continue up and down
The concrete sample of two-layer bond between fresh and hardened concretes carries out the temperature stress test being correlated with.
When needing when on horizontal length direction, the temperature stress of the old and new two section concrete is tested, first in side template
The dividing plate slot 27 of 231 is inserted into dividing plate 28, then carries out casting concrete dividing plate 28 both sides are the most secondary.First coagulation
Soil pours after vibrating, and assembles concrete sample mould 2 and testing machine main frame 1, first concrete sample is carried out maintenance and phase
Close experiment work.After the solidification of first concrete sample reaches predetermined age, by concrete sample mould 2 and testing machine main frame
1 separates, and removes the dividing plate 28 in dividing plate slot 27, the contact surface of first concrete sample is rushed hair, dabbing or surface
The process of the level correlations such as applying mortar, then carries out the second pouring of batch concrete and vibrates, and assembles concrete examination the most again
Part mould 2 and testing machine main frame 1, after waiting the second batch concrete sample final set, continue the two sections of coagulations of the old and new to two batches
The concrete sample that soil combines carries out the temperature stress test being correlated with.
The present invention provide the separable concrete temperature stress testing machine vibrated of mould, due to concrete sample mould with
Convenient installation and dismounting between testing machine main frame, the concrete sample mould after dismounting can individually pour and in vibration at laboratory
Vibrate on platform, after the prescription that reaches to vibrate, then be installed on testing machine main frame carry out associated temperature stress test, it is possible to significantly
Improve the pouring quality of concrete, make the credibility of result of the test and analogy more preferable.Further, the concrete that the present invention provides
Temperature stress testing machine, by the way of pre-buried bar and deformation measuring device positioning tool combine, makes the concrete recorded become
Shape precision is higher, can record the true strain of concrete.Meanwhile, the concrete temperature stress testing machine that the present invention provides is logical
Cross and concrete sample mould is improved, it is also possible to carry out the temperature stress experimental study of New-old concrete, functional and suitable
Bigger extension has been obtained by property.
It should be noted last that, above detailed description of the invention only in order to technical scheme to be described and unrestricted,
Although the present invention being described in detail with reference to example, it will be understood by those within the art that, can be to the present invention
Technical scheme modify or equivalent, without deviating from the spirit and scope of technical solution of the present invention, it all should be contained
In the middle of scope of the presently claimed invention.
Claims (10)
1. the separable concrete temperature stress testing machine vibrated of mould, it is characterised in that including:
Testing machine main frame, including the fixing end of fixation clamp rostral, the fixing end in active chuck side, and fixes described fixation clamp rostral
Fixing a pair feed rod connected of end is fixed in end and active chuck side, is bolted solid inside the fixing end of described fixation clamp rostral
Fixed end universal joint, is bolted movable end universal joint inside the fixing end in described active chuck side；
Concrete sample mould, including fixed chuck, active chuck, be arranged between described fixed chuck and active chuck is mixed
Solidifying soil pouring area, described fixed chuck is spirally connected with described fixing end universal joint, described active chuck and described movable end universal joint
It is spirally connected；
Deformation measuring device, including being arranged on the upper surface deformation measuring device on top, described concreting district, and is arranged on
The sidepiece deformation measuring device of both sides, described concreting district.
The separable concrete temperature stress testing machine vibrated of mould the most according to claim 1, it is characterised in that: described
Connecting servomotor outside the fixing end in active chuck side, described servomotor is bolted load transducer, described load
Sensor is bolted described movable end universal joint.
The separable concrete temperature stress testing machine vibrated of mould the most according to claim 1, it is characterised in that: described
Concreting district includes bottom template, and is connected to the side template of template both sides, described bottom, described bottom template and
The two ends of side template are connected with described fixed chuck and active chuck.
The separable concrete temperature stress testing machine vibrated of mould the most according to claim 1, it is characterised in that: described
Chuck positioning tool is set between fixed chuck and active chuck, side template positioning tool is set between described side template.
The separable concrete temperature stress testing machine vibrated of mould the most according to claim 3, it is characterised in that: described
Being respectively provided with soil font positioning tool on fixed chuck and active chuck, the rear portion of described soil font positioning tool is separately fixed at
On described fixed chuck and active chuck, the front part sides of described soil font positioning tool is separately fixed at described side template
On.
The separable concrete temperature stress testing machine vibrated of mould the most according to claim 5, it is characterised in that: described
Upper surface deformation measuring device includes the pre-buried bar of upper surface being separately positioned on described soil font positioning tool end, is connected to institute
State upper surface between the pre-buried bar of upper surface to survey deformation and extend bar and to be positioned close to the upper surface of described active chuck pre-buried
Upper surface displacement transducer on bar.
The separable concrete temperature stress testing machine vibrated of mould the most according to claim 5, it is characterised in that: described
Sidepiece deformation measuring device includes two the pre-buried bars of sidepiece being arranged in each described side template, is connected to described both sides
Sidepiece between pre-buried bar is surveyed to deform and is extended bar and be positioned close to the side on the pre-buried bar of sidepiece of described active chuck
Displacement sensor.
The separable concrete temperature stress testing machine vibrated of mould the most according to claim 6, it is characterised in that: described
The pre-buried bar of upper surface is screwed onto in the screwed hole of described soil font positioning tool end, and the lower end of the pre-buried bar of described upper surface is arranged
Upper surface cross built-in fitting, the top setting of the pre-buried bar of described upper surface is available for the survey deformation of described upper surface and extends what bar passed
Unthreaded hole, the survey of described upper surface is deformed bar of extending and is connected between two pre-buried bars of upper surface by the unthreaded hole of the pre-buried bar of upper surface,
The top of the pre-buried bar of described upper surface is provided with the jaws for clamping described upper surface displacement transducer, and described upper surface is surveyed and become
Shape bar of extending is indium steel bar.
The separable concrete temperature stress testing machine vibrated of mould the most according to claim 7, it is characterised in that: described
The pre-buried bar of sidepiece is fixed in the screwed hole in described side template by the threaded collar that middle part is arranged, the pre-buried bar of described sidepiece
Top sidepiece cross built-in fitting is set, the afterbody of the pre-buried bar of described sidepiece arranges and is available for described sidepiece and surveys deformation bar of extending and wear
The unthreaded hole crossed, the survey of described sidepiece is deformed bar of extending and is connected between two pre-buried bars of sidepiece by the unthreaded hole of the pre-buried bar of sidepiece, institute
The tail end stating the pre-buried bar of sidepiece is provided with the jaws for clamping described side displacement sensor, and the pre-buried bar of described sidepiece is by setting
Putting the spring at side template upper end-face edge and lift fixing, it is indium steel bar that described sidepiece surveys deformation bar of extending.
The separable concrete temperature stress testing machine vibrated of mould the most according to claim 9, it is characterised in that: institute
State the centre-height position in side template vertical direction and be provided with horizontal lines, the horizontal length direction of described side template
On center be provided perpendicular to the dividing plate slot of described side template, in described dividing plate slot, dividing plate is set.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610632642.2A CN106248914B (en) | 2016-08-04 | 2016-08-04 | Mould separates the concrete temperature stress testing machine to vibrate |
| US15/404,338 US9891208B2 (en) | 2016-07-08 | 2017-01-12 | Concrete temperature stress testing machine system and concrete temperature stress testing method |
| US15/855,526 US10060901B2 (en) | 2016-07-08 | 2017-12-27 | Concrete temperature stress testing machine system and temperature deformation self-compensation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610632642.2A CN106248914B (en) | 2016-08-04 | 2016-08-04 | Mould separates the concrete temperature stress testing machine to vibrate |
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| CN106248914A true CN106248914A (en) | 2016-12-21 |
| CN106248914B CN106248914B (en) | 2018-05-08 |
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| CN201610632642.2A Active CN106248914B (en) | 2016-07-08 | 2016-08-04 | Mould separates the concrete temperature stress testing machine to vibrate |
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| CN113203628A (en) * | 2021-05-24 | 2021-08-03 | 上海航空材料结构检测股份有限公司 | Fracture toughness test buckling-restrained device and test method |
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