CN106248914B - Mould separates the concrete temperature stress testing machine to vibrate - Google Patents
Mould separates the concrete temperature stress testing machine to vibrate Download PDFInfo
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- CN106248914B CN106248914B CN201610632642.2A CN201610632642A CN106248914B CN 106248914 B CN106248914 B CN 106248914B CN 201610632642 A CN201610632642 A CN 201610632642A CN 106248914 B CN106248914 B CN 106248914B
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- 239000004567 concrete Substances 0.000 title claims abstract description 145
- 238000009662 stress testing Methods 0.000 title claims abstract description 26
- 238000006073 displacement reaction Methods 0.000 claims description 20
- 238000005192 partition Methods 0.000 claims description 17
- 239000002689 soil Substances 0.000 claims description 9
- 229910052738 indium Inorganic materials 0.000 claims description 6
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical group [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 35
- 238000002474 experimental method Methods 0.000 abstract description 29
- 238000009434 installation Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 7
- 238000005266 casting Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000009933 burial Methods 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 206010061619 Deformity Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation 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
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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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The concrete temperature stress testing machine to vibrate, including the concrete sample mould and deformation measuring device that experiment machine host and the experiment machine host are detachably connected are separated the invention discloses a kind of mould.Mould provided by the invention separates the concrete temperature stress testing machine to vibrate, facilitate concrete sample mould with testing the installation and dismounting of machine host, concrete sample mould release individually can pour vibrating after getting off, after reaching quality of vibrating requirement, it is installed to again on experiment machine host and carries out associated temperature stress test, the pouring quality of concrete is greatly improved, makes 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, more particularly to a kind of mould, which separates, to vibrate
Concrete temperature stress testing machine.
Background technology
Concrete temperature stress testing machine (TSTM) have can measure at the same time concrete bullet mould, creep, relax, crack answer
The function of the multiple material mechanics parameter such as power and feature breaking temperature, can be in laboratory simulation various boundary conditions, foundation and work
Contact between journey structure.Concrete temperature stress testing machine (TSTM) is a kind of the effective of overall merit crack-resistant performance of concrete
Experimental rig.
It is fixed non-removable between current concrete test machine and test piece mould, i.e. the test specimen of concrete will be
Poured on testing machine, vibrated by modes such as hand-held vibrating spears to the concrete in test piece mould.It is it is well known that mixed
Solidifying soil is a kind of synthetic material, has great natural discreteness, and the size of concrete temperature stress experiment test specimen is larger,
Mostly 150mm*150mm*1500mm, tends not to make concrete obtain fully on testing machine by the way of hand-held vibrating spear
Vibrate, and then influence the quality of concrete；And the performance of testing machine can also be influenced for a long time by vibrating.Although in different batches
Identical match ratio can be controlled during experiment, but the quality of concrete is bad, result of the test nature difference is larger.Due to
Quality of vibrating is bad, causes the credible low of result of the test, and the result of the test analogy of different batches concrete is poor.In addition
Since concrete quality is bad, current concrete temperature stress testing machine is tested just for homogeneous concrete, also not
It can carry out the associated temperature stress test of bond between fresh and hardened concretes.For the credible of guarantee test result, analogy and expansion
Open up the New-old concrete Research Ability of TSTM, it is necessary to assure the pouring quality of concrete.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of mould and separate the concrete temperature stress experiment vibrated
Machine, to improve the pouring quality of concrete, the precision of guarantee test machine result of the test.
In order to solve the above technical problems, the concrete temperature stress experiment vibrated is separated the present invention provides a kind of mould
Machine, including：
Test machine host, including geometrical clamp rostral fixing end, active chuck side fixing end, and by the geometrical clamp rostral
A pair of of feed rod that fixing end is fixedly connected with active chuck side fixing end, the geometrical clamp rostral fixing end inner side are connected by bolt
Fixing end universal joint is connect, movable end universal joint is bolted on the inside of the fixing end of the active chuck side；
Concrete sample mould, including fixed chuck, active chuck, is arranged between the fixed chuck and active chuck
Concreting area, the fixed chuck is spirally connected with the fixing end universal joint, the active chuck and the movable end ten thousand
It is spirally connected to section；
Deformation measuring device, including the upper surface deformation measuring device on concreting area top is arranged on, and set
Put the sidepiece deformation measuring device in concreting area both sides.
Further, connection servomotor, the servomotor are connected by bolt on the outside of the fixing end of the active chuck side
Load transducer is connect, the movable end universal joint is bolted in the load transducer.
Further, the concreting area includes bottom template, and is connected to the side of the bottom template both sides
Portion's template, the both ends of the bottom template and side template are connected with the fixed chuck and active chuck.
Further, collet positioning tool is set between the fixed chuck and active chuck, between the side template
Side template positioning tool is set.
Further, native font positioning tool is set respectively on the fixed chuck and active chuck, and the soil font is determined
The rear portion of position frock is separately fixed on the fixed chuck and active chuck, the front part sides point of the soil font positioning tool
It is not fixed in the side template.
Further, the upper surface deformation measuring device includes being separately positioned on the native font positioning tool end
The pre-buried bar in upper surface, is connected to upper surface between the pre-buried bar in the upper surface and surveys deformation and extend and bar and be positioned close to described
Upper surface displacement sensor on the pre-buried bar in upper surface of active chuck.
Further, two sidepieces that the sidepiece deformation measuring device includes being arranged in each side template are pre-
Bury bar, the sidepiece being connected between the pre-buried bar in the both sides surveys deformation and extends and bar and is positioned close to the active chuck
Sidepiece displacement sensor on the pre-buried bar of sidepiece.
Further, the pre-buried bar in the upper surface is screwed onto in the threaded hole of the native font positioning tool end, described
The lower end of the pre-buried bar in upper surface sets upper surface cross built-in fitting, and the top of the pre-buried bar in upper surface is set on described
Surface, which is surveyed, deforms the unthreaded hole that bar passes through of extending, and the upper surface survey deforms bar of extending and is connected to by the unthreaded hole of the pre-buried bar in upper surface
Between two pre-buried bars in upper surface, the top of the pre-buried bar in upper surface is provided with for clamping the upper surface displacement sensor
Clamping opening, it is indium steel bar that deformation bar of extending is surveyed in the upper surface.
Further, the pre-buried bar of the sidepiece is fixed on the spiral shell in the side template by the threaded collar that middle part is set
In pit, the top of the pre-buried bar of sidepiece sets sidepiece cross built-in fitting, the afterbody of the pre-buried bar of sidepiece set for
The sidepiece, which is surveyed, deforms the unthreaded hole that bar passes through of extending, and the sidepiece survey deforms 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 sidepiece is provided with the folder for clamping the sidepiece displacement sensor
Mouthful, the pre-buried bar of sidepiece lifts fixation by being arranged on the spring of side template upper end-face edge, and the sidepiece surveys deformation and extends
Bar is indium steel bar.
Further, the centre-height position in the side template vertical direction is provided with horizontal lines, the side
Center on the horizontal length direction of portion's template is provided perpendicular to the partition plate slot of the side template, and the partition plate is inserted
Partition plate is set in groove.
Mould provided by the invention separates the concrete temperature stress testing machine to vibrate, it tests machine host 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 to pour and vibrate on a vibration table, after reaching quality of vibrating requirement, then be installed on experiment machine host and carry out associated temperature
Stress test, overcoming traditional concrete temperature stress testing machine cannot individually vibrate on a vibration table after concreting
The drawbacks of, the pouring quality of concrete is greatly improved, makes the credibility of result of the test and analogy more preferable.Also, this
The concrete temperature stress testing machine provided is provided, by way of pre-buried bar and deformation measuring device positioning tool are combined,
Make the concrete deformation precision higher measured, and the true strain of concrete can be measured.
Brief description of the drawings
Fig. 1 is the structural representation that mould provided in an embodiment of the present invention separates the concrete temperature stress testing machine to vibrate
Figure；
Fig. 2 is the concrete examination that mould provided in an embodiment of the present invention separates the concrete temperature stress testing machine to vibrate
The structure diagram of part mould；
Fig. 3 is the concrete examination that mould provided in an embodiment of the present invention separates the concrete temperature stress testing machine to vibrate
The side view of part mould；
Fig. 4 is the concrete examination that mould provided in an embodiment of the present invention separates the concrete temperature stress testing machine to vibrate
The A-A profiles of part mould.
Description of reference numerals：
1- experiments machine host 2- concrete sample mould 3- deformation measuring device 4- horizontal location threaded holes 11- is fixed
Collet side fixing end 12- active chucks side fixing end 13- feed rod 14- fixing end universal joint 15- movable end universal joints 16-
Servomotor 17- load transducer 21- fixed chuck 22- active chuck 23- concretings area 24- collets positioning work
25- side template positioning tool 26- soil font positioning tool 27- partition plate slot 28- partition plate 31- upper tables facial disfigurement is filled to survey
Measure on the device 32- sidepieces deformation measuring device 231- side template 232- bottoms pre-buried bar 312- in template 311- upper surfaces
Surface surveys deformation and extends the pre-buried bar of bar 313- upper surfaces displacement sensor 314- upper surfaces cross built-in fitting 321- sidepieces
322- sidepieces survey deformation and extend bar 323- sidepiece displacement sensor 324- sidepiece cross built-in fitting 325- threaded collars
326- spring 327- spring adjustment screws 328- adjusts spring
Embodiment
Referring to Fig. 1, a kind of mould provided in an embodiment of the present invention separates the concrete temperature stress testing machine to vibrate, bag
Include experiment machine host 1, concrete sample mould 2 and deformation measuring device 3.Wherein, experiment machine host 1 includes geometrical clamp rostral
Fixing end 11, active chuck side fixing end 12, and by 12 company of fixation of geometrical clamp rostral fixing end 11 and active chuck side fixing end
Fixing end universal joint 14, active chuck side is bolted in a pair of of the feed rod 13 connect, the inner side of geometrical clamp rostral fixing end 11
Movable end universal joint 15 is bolted in the inner side of fixing end 12, and the outside of active chuck side fixing end 12 is connected with servo electricity
Load transducer 17 is bolted in machine 16, servomotor 16, and load transducer 17 passes through bolt and movable end universal joint 15
Connection.Concrete sample mould 2 includes fixed chuck 21, active chuck 22, and is arranged on fixed chuck 21 and active chuck 22
Between concreting area 23, the end set of fixed chuck 21 has horizontal location threaded hole (not shown), fixing end
Universal joint 14 is screwed onto on the horizontal location threaded hole of fixed chuck 21, makes fixed chuck 21 with testing the geometrical clamp of machine host 1
Rostral fixing end 11 connects.The end set of active chuck 22 has horizontal location threaded hole 4, and movable end universal joint 15 is screwed onto water
On flat positioning spiro pit 4, active chuck 22 is set to be connected with testing the active chuck side fixing end 12 of machine host 1.Due to fixing end
The horizontal location screw hole of universal joint 14 and fixed chuck 21 and fixed chuck 21 is connected with geometrical clamp rostral fixing end 11
Connect, active chuck 22 is pressed from both sides with activity since the horizontal location threaded hole 4 of movable end universal joint 15 and active chuck 22 is spirally connected
Rostral fixing end 12 connects, and therefore, easily can install and dismantle between concrete sample mould 2 and experiment machine host 1.Become
Shape measuring device 3 includes being arranged on the upper surface deformation measuring device 31 on 23 top of concreting area and being arranged on concrete pouring
Build the sidepiece deformation measuring device 32 of 23 both sides of area.
Referring to Fig. 2, concreting area 23 includes bottom template 232 and a pair of of side template 231, bottom template 232
Bottom is provided with slideway, and side template 231 is located at the both sides of bottom template 232, and connects with the slideway of 232 bottom of bottom template
Connecing, the both ends of bottom template 232 are connected by bolt with fixed chuck 21 and active chuck 22 respectively, and the two of side template 231
The side template 231 and fixed chuck 21 of end difference connection fixing clamp first 21 and active chuck 22, bottom template 232 and both sides
Concreting area 23 is surrounded with active chuck 22.It is arranged on due to side template 231 on the slideway of 232 bottom of bottom template,
, can be by the side template 231 of 232 both sides of bottom template when carrying out temperature stress experiment to concrete sample after concrete final set
Move 3-5cm laterally respectively, contact generation friction with side template 231 to avoid concrete sample and influence concrete temperature
The accuracy of stress test data.
After 2 placing concrete of concrete sample mould in process of vibrating, in order to ensure that concrete sample mould 2 stablizes jail
Gu and there is spillage phenomenon also for preventing in process of vibrating concreting area to deform, in fixed chuck 21 and activity
A collet positioning tool 24 is connected between collet 22, side template positioning tool 25 is connected between side template 231.
Wherein, fixed chuck 21 and active chuck 22 can firmly be fixed together by collet positioning tool 24, as the present invention
A kind of embodiment, collet positioning tool 24 is made of two metal optical wands and two pieces of metallic plates, two metal optical wands
Both ends be separately fixed at the both ends of two metallic plates, two metallic plates are separately fixed at fixed chuck 21 by bolt again and activity is pressed from both sides
First 22 surface, so as to play to 22 further firm effect of fixed chuck 21 and active chuck.Side template positioning tool
25 be the polylith metal connecting plate being connected between both sides template 231, as a kind of embodiment of the present invention, sidepiece
Template Location frock 25 includes two pieces of metal connecting plates, the appropriate position being separately fixed at by bolt between both sides template 231
Put.
In addition, being respectively arranged with native font positioning tool 26 on fixed chuck 21 and active chuck 22, native font positions work
Fill 26 rear portion to be separately fixed on fixed chuck 21 and active chuck 22 by bolt, the front portion two of native 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 native words
On shape positioning tool 26.
Referring to Fig. 3 and Fig. 4, upper surface deformation measuring device 31 includes the pre-buried bar 311 in upper surface, upper surface surveys deformation and extends
Bar 312 and upper surface displacement sensor 313.The end of native font positioning tool 26 is respectively arranged with bar 311 pre-buried with upper surface
The matched threaded hole of outside diameter, the pre-buried bar 311 in upper surface are screwed onto on the threaded hole of native font positioning tool 26.In order to increase upper table
The contact area of the pre-buried bar 311 in face and concrete, in favor of common eigenvector preferably occurs, under the pre-buried bar 311 in upper surface
End is provided with upper surface cross built-in fitting 314.By the pre-buried bar 311 in helical rotation upper surface, the pre-buried bar 311 in upper surface is set to exist
Moved up and down in the threaded hole of native font positioning tool 26, concrete is arrived so as to adjust upper surface cross built-in fitting 314
In precalculated position.In upper surface, the top of pre-buried bar 311 is provided with the unthreaded hole for being surveyed for upper surface and deforming bar 312 of extending and passing through,
Upper surface surveys the extend both ends of bar 312 of deformation and is each passed through unthreaded hole on the pre-buried bar 311 in two upper surfaces, close to fixed chuck 21
That one end upper surface survey deformation extend bar 312 be inserted into the pre-buried bar 311 in upper surface on unthreaded hole in, pass through the pre-buried bar in upper surface
The downward trip bolt of 311 plan verticals fixes upper surface survey deformation bar 312 of extending, and upper surface surveys deformation and extends bar 312
Unthreaded hole on other end bar 311 pre-buried with another upper surface is slidably connected.Close to the pre-buried bar 311 in upper surface of active chuck 22
Top be additionally provided with a clamping opening, upper surface displacement sensor 313 is clamped directly at the clamping opening on pre-buried 311 top of bar in upper surface
On, facilitate the installation and dismounting of upper surface displacement sensor 313.Upper table can be driven when concrete sample contraction or expansion deforms
The pre-buried bar 311 in face and its 314 common eigenvector of upper surface cross built-in fitting of lower end, the deformation of the pre-buried bar 311 in upper surface drive
Upper surface displacement sensor 313 deforms, so as to measure the deformation values of concrete.Wherein, upper surface surveys deformation and extends bar 312
By elasticity modulus is big, material of linear expansion coefficient very little is made, as a kind of embodiment of the present invention, upper surface
Survey deformation and extend bar 312 using indium steel making, the precision that concrete temperature stress experiment measures can be greatly improved.
Sidepiece deformation measuring device 32 includes the pre-buried bar 321 of two sidepieces, the company being inserted in the threaded hole of side template 231
Be connected on sidepiece between the pre-buried bar 321 in both sides survey deformation extend bar 322 and be positioned close to active chuck 22 sidepiece it is pre-
Bury the sidepiece displacement sensor 323 on bar 321.Wherein, the middle part of the pre-buried bar 321 of sidepiece is bolted with two threaded collars 325, and two
It is cased with adjusting spring 328 between a threaded collar 325, the threaded collar 325 of inner side is screwed onto the threaded hole of side template 231
On, by adjusting be spirally connected position of two threaded collars 325 on the pre-buried bar 321 of sidepiece, the pre-buried bar 321 of sidepiece can be adjusted and existed
Precalculated position in concrete.And the combination dynamics of the threaded collar 325 of inner side and the threaded hole of side template 231 is tightened,
Can prevent that spillage phenomenon occurs at the threaded hole of side template 231 in casting concrete.Needed after concrete hardening
When side template 231 and concrete sample are departed from, two threaded collars 325 first can be adjusted into 3~5cm laterally, then
Side template 231 is displaced outwardly by 3~5cm by the slide of 232 bottom of bottom template, you can complete the de- of side template 231
Mold process, so as to not influence the pre-buried bar 321 of sidepiece in the position that concrete is pre-positioned.
In order to increase the contact area of the pre-buried bar 321 of sidepiece and concrete, in favor of common eigenvector, sidepiece preferably occurs
The top of pre-buried bar 321 is equipped with sidepiece cross built-in fitting 324, and the afterbody of the pre-buried bar 321 of sidepiece, which is provided with to survey for sidepiece, to be become
Shape is extended the unthreaded hole that bar 322 passes through, and it is pre-buried close to that one end of fixed chuck 21 insertion sidepiece to survey deformation bar 322 of extending in sidepiece
In unthreaded hole on bar 321, it is fixed by the trip bolt of pre-buried 321 end of bar of sidepiece, sidepiece, which is surveyed, deforms bar 322 of extending
Unthreaded hole on other end bar 321 pre-buried with another sidepiece is slidably connected.Close to the tail of the pre-buried bar 321 of sidepiece of active chuck 22
End is provided with clamping opening, and sidepiece displacement sensor 323 is clamped directly in the clamping opening of the pre-buried bar 321 of sidepiece, facilitates sidepiece displacement to pass
The installation and dismounting of sensor 323.The pre-buried bar 321 of sidepiece and sidepiece cross can be driven when concrete sample contraction or expansion deforms
324 common eigenvector of shape built-in fitting, the deformation of the pre-buried bar 321 of sidepiece drives side displacement sensor 323 to deform, so as to measure
The deformation values of concrete.
In addition, 231 upper end-face edge of side template is provided with spring adjustment screw 327, the upper end connecting spring of spring 326
Adjusting bolt 327, the pre-buried bar 321 of lower end connect the side of spring 326, passes through the height of the adjusting spring 326 of spring adjustment screw 327
The pre-buried bar 321 of sidepiece is lifted fixation by degree.Wherein, it is by elasticity modulus is big, linear expansion coefficient that sidepiece, which surveys deformation bar 322 of extending,
The material of very little is made, and as a kind of embodiment of the present invention, it is to use indium steel that sidepiece, which surveys deformation bar 322 of extending,
Make, the precision of concrete temperature stress experiment measure can be greatly improved.
In order to position the interface of upper and lower two layers of New-old concrete, the centre-height in 231 vertical direction of side template
Position is provided with horizontal lines, easy to determine the height of concreting during first time casting concrete.For position level
The interface location of two section concrete of the old and new on length direction, the center on 231 horizontal length direction of side template are set
There is a partition plate slot 27 perpendicular to side template 231, partition plate 28 is may be inserted into partition plate slot 27, in casting concrete
When, concrete can be divided into two section concrete test specimens in horizontal direction by partition plate 28.
Below by the application method and its operation principle of concrete temperature stress testing machine to mould provided by the invention
The separable concrete temperature stress testing machine to vibrate is further illustrated.
In use, fixing end universal joint 14 is laid down out of fixed chuck 21 horizontal location threaded hole, by movable end ten thousand
Laid down to section 15 out of active chuck 22 horizontal location threaded hole 4, the vertical of 2 both ends of concrete sample mould is hitched by rope
Bolt ring 5, concrete sample mould 2 is sling by elevator, concrete sample mould 2 is separated with experiment machine host 1.
Native font collet positioning tool is installed between the fixed chuck 21 and active chuck 22 on concrete sample mould 2
26, and sidepiece Template Location frock 25 is installed between side template 231, to ensure concrete sample mould 2 in process of vibrating
In will not deform spillage phenomenon.Then installed respectively in the threaded hole of two native 26 ends of font collet positioning tool
The pre-buried bar 311 in surface, it is pre- by the upper surface cross for rotating the pre-buried adjusting of bar 311 pre-buried 311 lower end of bar in upper surface in upper surface
Position of the embedded part 314 in concreting area 23, makes upper surface cross built-in fitting 314 be positioned at predetermined burial place.
The pre-buried bar 321 of sidepiece is inserted into threaded hole in the side template 231 of 2 both sides of concrete sample mould, sidepiece will be screwed onto
The threaded collar 325 of the inner side in two threaded collars 325 on pre-buried bar 321 is screwed onto on the threaded hole of side template 231,
Then the sidepiece cross built-in fitting 324 for pre-buried 321 top of bar of sidepiece being adjusted by rotating the pre-buried bar 321 of sidepiece stretches into concrete
Position in pouring area 23, makes sidepiece cross built-in fitting 324 be positioned at predetermined burial place.Finally in concrete sample mould
Casting concrete in tool 2.
The concrete sample mould 2 for having poured concrete is put on the shake table that frequency is 50 ± 3HZ and is vibrated, vibration is held
Continue concrete surface pulp, make the compactness of concrete stop vibrating (taking around after reaching Standard for quality control of concrete
30s)。
Control servomotor 16 to move horizontally by the software of industrial PC, drive active chuck side fixing end 12 to move,
So that reserve enough installation spaces between active chuck side fixing end 12 and geometrical clamp rostral fixing end 11.Then will vibrate
The concrete sample mould 2 of good concrete sample is lifted on experiment machine host 1, and fixing end universal joint 14 is screwed onto geometrical clamp
On first 21 horizontal location threaded hole, fixed chuck 21 is set to be connected with geometrical clamp rostral fixing end 11, by movable end universal joint 15
It is screwed onto on the horizontal location threaded hole 4 of active chuck 22, active chuck 22 is connected with active chuck side fixing end 12, so that
Concrete sample mould 2 is set to link together with experiment machine host 1.
After waiting the concrete final set in concrete sample mould 2, remove collet positioning tool 24 and side template is determined
Position frock 25, and the side template 231 of 232 both sides of bottom template is moved into 3-5cm laterally respectively, then, in two upper surfaces
Upper surface is installed on pre-buried bar 311 surveys deformation and extend bar 312, and close to pre-buried 311 top of bar in upper surface of active chuck 22
Install surface displacement sensor 313.Sidepiece survey deformation is installed on the pre-buried bar 321 of two sidepieces in side template 231 to draw
Boom 322, and side displacement sensor 323 is installed on the pre-buried bar 321 of sidepiece close to active chuck 22.Finally, phase is set
Test parameters is closed, carries out concrete temperature stress experiment.
When needing the temperature stress to New-old concrete to carry out experimental study, following method and step can be taken：
When the temperature stress to two layers of New-old concrete up and down in the horizontal direction is tested, in concrete sample
Casting concrete in mould 2, after making the horizontal lines for pouring face and reaching in side template 231 of concrete, stops pouring, right
Lower-layer concrete is fully vibrated reach requirement after, as the method previously described by concrete sample mould 2 be assembled into experiment machine host 1
On, lower-layer concrete sample is conserved and correlation test works.After the solidification of lower-layer concrete sample reaches predetermined age,
Concrete sample mould 2 and experiment machine host 1 are separated, pouring for layer concrete is carried out on the basis of lower-layer concrete sample
With vibrating, concrete sample mould 2 and experiment machine host 1 are assembled afterwards, after waiting upper strata concrete sample final set, is continued to upper and lower
The concrete sample of two layers of bond between fresh and hardened concretes carries out relevant temperature stress experiment.
When needing to test the temperature stress of two section concrete of the old and new on horizontal length direction, first in side template
Insertion partition plate 28 in 231 partition plate slot 27, then in 28 both sides of partition plate secondary carry out casting concrete in two batches.First coagulation
Soil pours vibrate after, assembling concrete sample mould 2 and experiment machine host 1 conserve first concrete sample and phase
Close experiment work.After the solidification of first concrete sample reaches predetermined age, by concrete sample mould 2 and experiment machine host
1 separation, removes the partition plate 28 in partition plate slot 27, punching hair, dabbing or surface is carried out to the contact surface of first concrete sample
The processing of the level correlations such as applying mortar, then carries out pouring for second lot concrete and vibrates, assemble concrete examination again afterwards
Part mould 2 and experiment machine host 1, after second lot concrete sample final set, continue two sections of coagulations of the old and new to two batches
The concrete sample that soil combines carries out relevant temperature stress experiment.
Mould provided by the invention separates the concrete temperature stress testing machine to vibrate, due to concrete sample mould with
With dismounting, the concrete sample mould after dismounting individually can be poured and vibrated in laboratory for convenient installation between testing machine host
Vibrate on platform, after reaching quality of vibrating requirement, then be installed on experiment machine host and carry out associated temperature stress test, can be significantly
Improve the pouring quality of concrete, make the credibility of result of the test and analogy more preferable.Also, concrete provided by the invention
Temperature stress testing machine, by way of pre-buried bar and deformation measuring device positioning tool are combined, the concrete for making to measure becomes
Shape precision higher, can measure the true strain of concrete.Meanwhile concrete temperature stress testing machine provided by the invention, lead to
Cross and concrete sample mould is improved, can also carry out the temperature stress experimental study of New-old concrete, feature and suitable
Larger extension has been obtained with property.
It should be noted last that above embodiment is merely illustrative of the technical solution of the present invention and unrestricted,
Although the present invention is described in detail with reference to example, it will be understood by those of ordinary skill in the art that, can be to the present invention
Technical solution technical scheme is modified or replaced equivalently, without departing from the spirit and scope of technical solution of the present invention, it should all cover
Among scope of the presently claimed invention.
Claims (5)
1. a kind of mould separates the concrete temperature stress testing machine to vibrate, it is characterised in that including：
Machine host, including geometrical clamp rostral fixing end, active chuck side fixing end are tested, and the geometrical clamp rostral is fixed
A pair of of the feed rod being fixedly connected with active chuck side fixing end is held, is bolted on the inside of the geometrical clamp rostral fixing end solid
Movable end universal joint is bolted in fixed end universal joint, active chuck side fixing end inner side；
Concrete sample mould, including fixed chuck, active chuck, is arranged on mixed between the fixed chuck and active chuck
Solidifying soil pouring area, the fixed chuck are spirally connected with the fixing end universal joint, the active chuck and the movable end universal joint
It is spirally connected；
Deformation measuring device, including the upper surface deformation measuring device on concreting area top is arranged on, and be arranged on
The sidepiece deformation measuring device of concreting area both sides；The concreting area includes bottom template, and connection
Side template in the bottom template both sides, both ends and the fixed chuck and the activity of the bottom template and side template
Collet connects；Native font positioning tool is set respectively on the fixed chuck and active chuck, the soil font positioning tool
Rear portion is separately fixed on the fixed chuck and active chuck, and the front part sides of the soil font positioning tool are separately fixed at
In the side template；Two sidepieces that the sidepiece deformation measuring device includes being arranged in each side template are pre-buried
Bar, the sidepiece being connected between the pre-buried bar in the both sides, which survey deformation and extend, bar and is positioned close to the side of the active chuck
Sidepiece displacement sensor on the pre-buried bar in portion；The pre-buried bar in upper surface is screwed onto the screw thread of the native font positioning tool end
In hole, the lower end of the pre-buried bar in upper surface sets upper surface cross built-in fitting, and the top of the pre-buried bar in upper surface is set
The unthreaded hole for deforming bar of extending and passing through is surveyed for the upper surface, the upper surface survey deforms bar of extending and passes through the pre-buried bar in upper surface
Unthreaded hole is connected between two pre-buried bars in upper surface, and the top of the pre-buried bar in upper surface is provided with for clamping the upper surface
The clamping opening of displacement sensor, it is indium steel bar that deformation bar of extending is surveyed in the upper surface；What the pre-buried bar of sidepiece was set by middle part
Threaded collar is fixed in the threaded hole in the side template, and the top of the pre-buried bar of sidepiece sets sidepiece cross pre-buried
Part, the afterbody of the pre-buried bar of sidepiece set the unthreaded hole for being surveyed for the sidepiece and deforming bar of extending and passing through, and the sidepiece surveys deformation
Between bar of extending is connected to two pre-buried bars of sidepiece by the unthreaded hole of the pre-buried bar of sidepiece, the tail end of the pre-buried bar of sidepiece is provided with
For clamping the clamping opening of the sidepiece displacement sensor, the pre-buried bar of sidepiece is by being arranged on the bullet of side template upper end-face edge
Spring lifting is fixed, and it is indium steel bar that the sidepiece, which surveys deformation bar of extending,.
2. mould according to claim 1 separates the concrete temperature stress testing machine to vibrate, it is characterised in that：It is described
Load transducer, the load is bolted in connection servomotor, the servomotor on the outside of the fixing end of active chuck side
The movable end universal joint is bolted in sensor.
3. mould according to claim 1 separates the concrete temperature stress testing machine to vibrate, it is characterised in that：It is described
Collet positioning tool is set between fixed chuck and active chuck, side template positioning tool is set between the side template.
4. mould according to claim 1 separates the concrete temperature stress testing machine to vibrate, it is characterised in that：It is described
Upper surface deformation measuring device includes the pre-buried bar in upper surface for being separately positioned on the native font positioning tool end, is connected to institute
State upper surface between the pre-buried bar in upper surface survey deformation extend bar and be positioned close to the active chuck upper surface it is pre-buried
Upper surface displacement sensor on bar.
5. mould according to claim 1 separates the concrete temperature stress testing machine to vibrate, it is characterised in that：It is described
Centre-height position in side template vertical direction is provided with horizontal lines, on the horizontal length direction of the side template
Center be provided perpendicular to the partition plate slot of the side template, partition plate is set in the partition plate slot.
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 CN106248914A (en) | 2016-12-21 |
| CN106248914B true CN106248914B (en) | 2018-05-08 |
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| CN108532969B (en) * | 2018-05-31 | 2024-06-14 | 重庆建工集团股份有限公司 | Profile steel supporting device for loading hole embedded part and construction method of profile steel supporting device |
| CN113092210B (en) * | 2021-04-08 | 2022-06-24 | 昆明理工大学 | Cylindrical test piece pouring mold with angle-adjustable position joint prefabricated sheet |
| CN113203628B (en) * | 2021-05-24 | 2022-02-22 | 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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