CN209707266U - A kind of solid concrete compression strength top daraf(reciprocal of farad) detection device - Google Patents
A kind of solid concrete compression strength top daraf(reciprocal of farad) detection device Download PDFInfo
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- CN209707266U CN209707266U CN201920541407.3U CN201920541407U CN209707266U CN 209707266 U CN209707266 U CN 209707266U CN 201920541407 U CN201920541407 U CN 201920541407U CN 209707266 U CN209707266 U CN 209707266U
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Abstract
A kind of solid concrete compression strength top daraf(reciprocal of farad) detection device, the top including being located in solid concrete draw sample, successively lay cuboid steel pressure head, spherical bearing, miniature screw rod hydraulic jack, cuboid counter-force steel plate thereon；Cuboid counter-force steel plate two sides short side, which is symmetrically installed with to can be hooked to push up face-to-face, draws the L shape counter-force steel of sample to transport persons or goods by cart；The cuboid counter-force steel plate and L shape counter-force steel are transported persons or goods by cart to be provide with cuboid steel pressure head, spherical bearing, miniature screw rod hydraulic jack wherein jointly；Draw sample, cuboid steel pressure head, spherical bearing, miniature screw rod hydraulic jack, cuboid counter-force steel plate longitudinal axis in the top.The utility model is transported persons or goods by cart by L shape counter-force steel to be hooked top in solid concrete and draws sample, applied on the pulling force Yu Dingla sample of top by cuboid steel pressure head, spherical bearing, miniature screw rod hydraulic jack, cuboid counter-force steel plate again, until top draws sample to destroy, read maximum top value of thrust, and concrete crushing strength is estimated according to the conversion formula established between concrete crushing strength and top value of thrust, design is rationally, practical, and detection is accurate.
Description
Technical field
The utility model relates to a kind of solid concrete compression strength top daraf(reciprocal of farad) detection devices.
Background technique
Compression strength is important one of the performance parameter of concrete, is directly related to concrete component or even entire engineering matter
Measure safety and normal use.Therefore, carrying out detection to solid concrete compression strength is a very important job.
In the prior art, as follows respectively: (1) to cut for detecting there are many common methods of solid concrete compression strength
Platen press.Using concrete shearing press instrument, the pressure perpendicular to pressure-bearing surface is applied to the right-angle side surface of concrete component, so that coagulation
The right-angle side of native component generates local shear compression failure, and the compression strength of concrete component is estimated according to shearing pressure at this time.
Shortcoming existing for this method: not being suitable for detecting cylinder concrete component (such as cylinder, concrete culvert pipe with great) compression strength,
Influence detection practicability.(2) core drilling method.Concrete sample is drilled through on concrete component, and is processed into standard core sample, in pressure
Its compression strength detection is carried out on testing machine.The shortcoming of the detection method: due to produce standard core sample size 100 ×
100 ㎜, damaged degree is relatively large and repairing is more demanding, influences to detect practicability.(3) rebound method.According to concrete component
The relationship of surface hardness and intensity estimates the compression strength of concrete component.The shortcoming of the detection method: it is not suitable for examining
Radius of curvature≤250mm cylinder concrete component (such as cylinder, concrete culvert pipe with great) compression strength is surveyed, influences to detect practical
Property.(4) Ultrasonic Resilience Comprehensive Method in Construction.According to the ultrasonic velocity in the hardness and concrete component of surface of concrete structure, to push away
Determine concrete crushing strength.The shortcoming of the detection method: it is not suitable for detecting radius of curvature≤250mm cylinder concrete
Component (such as cylinder, concrete culvert pipe with great) compression strength influences to detect practicability.(5) pulling out method.According to concrete component surface layer
In the range of 30mm, dial-out power when concrete component destroys estimates concrete crushing strength.The deficiency of the detection method
Place: detection process needs to carry out complicated drilling and slot grinding process, and needs surfacing, be not suitable for detecting radius of curvature≤
Cylinder concrete component (such as cylinder, concrete culvert pipe with great) compression strength of 250mm influences to detect practicability.(6) Pulling escape.
On the concrete component hardened, 44 ㎜ of test specimen, 44 ㎜ core sample test specimen of depth are drilled, with the device with Automatic-clamping test specimen
Pull-off test is carried out, concrete crushing strength is estimated according to the pull-off strength value of core sample test specimen.The shortcoming of the detection method:
The diameter dimension that position is mutually perpendicular to close to test specimen breaking part need to be measured when pulling test specimen stress by calculating, due to test specimen diameter compared with
Small, accurate measurement is more difficult, influences accuracy in detection.
In conclusion the above detection method, which exists, can not effectively detect radius of curvature≤250mm cylinder concrete component
The problem of (such as cylinder, concrete culvert pipe with great) compression strength, therefore need to be designed improvement.
Summary of the invention
Reasonable, practical, detection accurate solid concrete compression strength top is designed the utility model proposes a kind of
Daraf(reciprocal of farad) detection device.The device be able to solve the existing various detection methods of solid concrete compression strength it is existing, can not be effective
The problem of detecting radius of curvature≤250mm cylinder concrete component (such as cylinder, concrete culvert pipe with great) compression strength.
The technical solution adopted in the utility model is: a kind of solid concrete compression strength top daraf(reciprocal of farad) detection device, including
Sample is drawn on top in solid concrete, successively lays cuboid steel pressure head, spherical bearing, miniature screw rod oil jack thereon
Top, cuboid counter-force steel plate；Cuboid counter-force steel plate two sides short side is symmetrically installed with can be hooked top drawing sample face-to-face
L shape counter-force steel transport persons or goods by cart；The cuboid counter-force steel plate and L shape counter-force steel transport persons or goods by cart jointly cuboid steel pressure head, spherical bearing,
Miniature screw rod hydraulic jack is provide with wherein；Draw sample, cuboid steel pressure head, spherical bearing, miniature screw rod oil pressure thousand in the top
Jin top, cuboid counter-force steel plate longitudinal axis.The utility model is transported persons or goods by cart by L shape counter-force steel to be hooked top in solid concrete and draws
Sample, then top pulling force is applied by cuboid steel pressure head, spherical bearing, miniature screw rod hydraulic jack, cuboid counter-force steel plate
On Yu Dingla sample, until top draws sample to destroy, maximum top value of thrust is read, and according to concrete crushing strength and top value of thrust
Between establish conversion formula presumption concrete crushing strength.
Further, sample, including lower part cuboid, middle part square body and upper arcuate body are drawn in the top；Lower part is rectangular
100 ㎜ of body long side, (78-79) ㎜, (11-21) ㎜, lower surface are connect flash short side with solid concrete, and upper surface and middle part are just
The connection of square body lower surface, side is parallel with solid concrete shaft section, and end face is parallel with solid concrete diameter section, longitudinal axis position
In in solid concrete shaft section；100 ㎜ of middle part square body side length, lower surface are connect with lower part cuboid upper surface, upper table
Face is overlapped connection with upper arcuate body lower surface；Upper arcuate body lower surface is overlapped connection with middle part square body upper surface, on
Surface holds out against with cuboid steel pressure head lower surface and contacts, symmetrical 2 width 1 in the middle part of upper surface and shaft section parallel direction
The locating slot of ㎜, 1 ㎜ of depth, 2 positioning groove sidewalls are parallel with middle part square body side, 2 20 ㎜ of locating slot inner wall distance,
Slot bottom is to 30 ㎜ of middle part square body lower surface vertical range.
Further, the cuboid steel pressure head, 100 ㎜ of long side, 20 ㎜ of short side, thickness (10-20) ㎜, end face and toxoplasm
End face same plane, lower surface draw sample toxoplasm upper surface to contact with top, and upper surface center passes through spherical bearing and miniature spiral shell
The connection of bar hydraulic jack head.
Further, it is connected with and the miniature screw rod hydraulic jack longitudinal axis on the miniature screw rod hydraulic jack circumference side
Vertical swivel nut, swivel nut is interior to be equipped with screw rod, and the end of screw rod is equipped with the T-type box spanner for applying top pulling force；The miniature spiral shell
Bar hydraulic jack circumference is also connected with digital pressure gauge on side；The miniature screw rod hydraulic jack tail portion and cuboid are anti-
The connection of power Interal fixation.
Further, the cuboid counter-force steel plate, long side (120-140) ㎜, 100 ㎜ of short side, thickness (10-20) ㎜；Two
Side short side edge, every side are uniformly drilled with 3 connected circular holes for connection of transporting persons or goods by cart with two L shape counter-force steel.
Further, the L shape counter-force steel is transported persons or goods by cart including lower part cuboid and top cuboid；Outside the cuboid upper surface of lower part
Side is fixedly connected with top cuboid lower surface；100 ㎜ of lower part cuboid long side, (sample is drawn on 10-20) ㎜, side and top to flash
The rectangular body side surface in lower part is parallel, and end face and top draw sample lower part cuboid end face to be in same plane；Top cuboid long side 100
㎜, short side (10-20) ㎜, flash > (30+ cuboid steel pressure head thickness+spherical bearing height+miniature screw rod oil jack is risen
Degree), side draws the rectangular body side surface in sample lower part parallel with top, and end face and top draw sample lower part cuboid end face to be in same flat
Face；Top cuboid upper surface is drilled with 3 connecting screw holes corresponding with connected circular hole position, and connection bolt can pass through connection
Circular hole precession connecting screw hole；Supreme 10 ㎜ of minister's cube medial surface distance of lower part cuboid medial surface；Two face-to-face lower ministers
80 ㎜ of cube medial surface distance.
The utility model has the beneficial effects that (1) in carrying out detection process, applies top to concrete using detection device and draws
Power, measures maximum top value of thrust, estimates concrete according to the conversion formula established between concrete crushing strength and top value of thrust
Compression strength, design is rationally, practical, and detection is accurate.(2) it solves existing solid concrete compression strength to cut platen press, take
Core method, rebound method, ultrasonic-bounce back method, pulling out method, Pulling escape etc. can not effectively detect radius of curvature≤250mm cylinder coagulation
The problem of native component (such as cylinder, concrete culvert pipe with great) compression strength.
Detailed description of the invention
Fig. 1 is the use schematic front view of the utility model.
Fig. 2 is the use a-a schematic cross-section of the utility model.
Fig. 3 is the use b-b schematic cross-section of the utility model.
Fig. 4 is the auxiliary steel bracket floor map of the utility model.
Fig. 5 is the operating groove cutting schematic diagram of the utility model.
Fig. 6 is the operating groove grinding schematic diagram of the utility model.
Fig. 7 is the locating slot cutting schematic diagram of the utility model.
Specific embodiment
Combined with specific embodiments below the utility model to be further described, but the utility model is not limited to
In these specific embodiments.One skilled in the art would recognize that the utility model covers in Claims scope
All alternatives, improvement project and the equivalent scheme that may include.
Referring to Fig.1-7, a kind of solid concrete compression strength top daraf(reciprocal of farad) detection device, including be located in solid concrete 13
Top draw sample 15, thereon successively lay cuboid steel pressure head 16, spherical bearing 10, miniature screw rod hydraulic jack 2, cuboid
Counter-force steel plate 1；The 1 two sides short side of cuboid counter-force steel plate is symmetrically installed with can be hooked the L shape for drawing sample 15 in top face-to-face
Counter-force steel transports persons or goods by cart 11；The cuboid counter-force steel plate 1 transports persons or goods by cart 11 jointly cuboid steel pressure head 16, spherical branch with L shape counter-force steel
Seat 10, miniature screw rod hydraulic jack 2 are provide with wherein；The top draw sample 15, cuboid steel pressure head 16, spherical bearing 10, micro-
Type screw rod hydraulic jack 2,1 longitudinal axis of cuboid counter-force steel plate.The utility model is transported persons or goods by cart by L shape counter-force steel 11 hooks reality
Sample 15 is drawn on top in body concrete 13, then by cuboid steel pressure head 16, spherical bearing 10, miniature screw rod hydraulic jack 2,
Cuboid counter-force steel plate 1 applies on the pulling force Yu Dingla sample 15 of top, until top draws sample 15 to destroy, reads maximum top value of thrust,
And concrete crushing strength is estimated according to the conversion formula established between concrete crushing strength and top value of thrust.
Solid concrete 13 described in the present embodiment is 400 ㎜ cylinder of diameter.
Draw sample 15, including lower part cuboid, middle part square body and upper arcuate body in top described in the present embodiment；Lower minister
100 ㎜ of cube long side, 78 ㎜ of short side, 15 ㎜ of flash, lower surface are connect with solid concrete, under upper surface and middle part square body
Surface connection, side is parallel with cylinder concrete axial section, and end face is parallel with solid concrete diameter section, and the longitudinal axis is mixed positioned at entity
In solidifying soil shaft section；Middle part square body side length 100 ㎜, 24 ㎜ of flash, lower surface are connect with lower part cuboid upper surface, upper table
Face is overlapped connection with upper arcuate body lower surface；Upper arcuate body lower surface is overlapped connection with middle part square body upper surface, on
Surface holds out against with cuboid steel pressure head lower surface and contacts, symmetrical 2 width 1 in the middle part of upper surface and shaft section parallel direction
The locating slot of ㎜, 1 ㎜ of depth, 2 positioning groove sidewalls are parallel with middle part square body side, 2 20 ㎜ of locating slot inner wall distance,
Slot bottom is to 30 ㎜ of middle part square body lower surface vertical range.
Cuboid steel pressure head 16 described in the present embodiment, 100 ㎜ of long side, 20 ㎜ of short side, 12 ㎜ of thickness, end face and arch body end
Face same plane, lower surface are contacted with toxoplasm upper surface, and upper surface center passes through spherical bearing 10 and miniature screw rod oil pressure thousand
The 2 heads connection of jin top.
It is connected with and miniature screw rod hydraulic jack 2 on miniature 2 circumference side of screw rod hydraulic jack described in the present embodiment
The swivel nut 8 of axis oriented normal, swivel nut 8 is interior to be equipped with screw rod 9, and the end of screw rod 9 is equipped with the T-type box spanner 7 for applying top pulling force；Institute
It states and is also connected with digital pressure gauge 6 on miniature 2 circumference side of screw rod hydraulic jack；Miniature 2 tail of screw rod hydraulic jack
Portion is fixedly connected with cuboid counter-force steel plate 1.
Cuboid counter-force steel plate 1 described in the present embodiment, 128 ㎜ of long side, 100 ㎜ of short side, 14 ㎜ of thickness；Two sides short side side
Edge, every side are uniformly drilled with 3 connected circular holes 4 for 11 connections of transporting persons or goods by cart with two L shape counter-force steel, 9 ㎜ of aperture.
L shape counter-force steel described in the present embodiment transport persons or goods by cart 11 include lower part cuboid and top cuboid；Table on the cuboid of lower part
It is fixedly connected on the outside of face with top cuboid lower surface；Lower part cuboid long side 100 ㎜, 14 ㎜ of flash, sample is drawn on side and top
The rectangular body side surface in lower part is parallel, and end face and top draw sample lower part cuboid end face to be in same plane；Top cuboid long side 100
㎜, 14 ㎜ of short side, 140 ㎜ of flash, side draw the rectangular body side surface in sample lower part parallel with top, and end face draws sample lower part rectangular with top
Body end face is in same plane；Top cuboid upper surface is drilled with 3 connecting screw holes 5 corresponding with 4 position of connected circular hole, rule
Lattice 8 ㎜, M8 connection bolt 3 can pass through 4 precession connecting screw hole 5 of connected circular hole；The supreme minister's cube of lower part cuboid medial surface
10 ㎜ of medial surface distance；Two face-to-face 80 ㎜ of lower part cuboid medial surface distance.
The present embodiment detecting step is as follows: (1) holding the handle 20 on auxiliary steel bracket 19, press two stabilizer blades 23
13 surface of consolidation body concrete；(2) using being equipped with 3 total spacing 30mm of cutting sheet 22() hand-held concrete cutting machine 17,
22 depth of cutting sheet is adjusted, concrete cutting machine 17 is lain in auxiliary 19 upper surface of steel bracket, cutting sheet 22 passes through axial behaviour
Make slot cutting mouth 21, axial movement cutting solid concrete 13 forms inner wall depth 39mm, the operating groove 12 of width 30mm, chisel
Except the concrete in operating groove 12 and slot bottom of polishing is to smooth；(3) it is cut using the hand-held concrete for being equipped with single cutting sheet 22
Cutting mill 17 adjusts 22 depth of cutting sheet, concrete cutting machine 17 is lain in auxiliary 19 upper surface of steel bracket, cutting sheet 22 passes through
Axially position slot cutting mouth 18, axial movement cutting solid concrete 13, forms the locating slot 14 of depth 1mm, width 1mm；(4)
Using electric angle grinder 24,26 length of extension bar is adjusted, extension bar 26 and sintering bistrique 25,26 outer edge of extension bar to burning are installed
25 outer edge distance 11mm of bistrique is tied, electric angle grinder 24 lies in auxiliary 19 upper surface of steel bracket, and extension bar 26 passes through axial
Operating groove cutting mouth 21 is simultaneously close to 12 inner wall of operating groove, moves axially 12 internal-wall concrete of grinding action slot；(5) it uses and is equipped with
The hand-held concrete cutting machine 17 of single cutting sheet 22, adjusts 22 depth of cutting sheet, concrete cutting machine 17 is lain in auxiliary
19 upper surface of steel bracket, axial movement auxiliary steel bracket 19, cutting sheet 22 pass through radial detents cutting mouth 27, move radially and cut
Solid concrete 13 is cut, depth of cut 45mm forms top and draws sample 15；(6) auxiliary steel bracket 19 is removed, two L shape counter-forces
Steel transport persons or goods by cart 11 protrude into operating groove 12 hook top draw sample 15；(7) top, which is drawn, successively lays cuboid steel pressure head 16, spherical shape on sample 15
Support 10, miniature screw rod hydraulic jack 2, cuboid counter-force steel plate 1, connection bolt 3 pass through 4 precession connecting screw hole of connected circular hole
5, it tightens；(8) 7 sets of T-type box spanner on 9 end of screw rod, continuous uniform rotary screw 9 is reinforced, and makes cuboid steel pressure head
16 hold out against drawing 15 upper surface of sample, while driving L shape counter-force steel to transport persons or goods by cart 11 relative to top drawing examination by cuboid counter-force steel plate 1
Sample 15 moves up, until top draws sample 15 to destroy, reads maximum top value of thrust, and according to concrete crushing strength and top pulling force
The conversion formula presumption concrete crushing strength established between value.
In the present embodiment, conversion formula is as follows:
Yi=AXi+B
Wherein: the compression strength scaled value (MPa) of i-th of solid concrete 13 when Yi is detection；Xi applies when being detection
In maximum top value of thrust (N) of i-th of solid concrete 13；A, B is the regression coefficient of regression equation.
Certainly, in addition to above-mentioned formula, concrete crushing strength and the conversion formula for pushing up value of thrust can also be other formula,
It is not restricted to above-mentioned formula.
Claims (6)
1. a kind of solid concrete compression strength top daraf(reciprocal of farad) detection device, it is characterised in that: including being located in solid concrete
Sample is drawn on top, successively lays cuboid steel pressure head, spherical bearing, miniature screw rod hydraulic jack, cuboid counter-force steel plate thereon；
Cuboid counter-force steel plate two sides short side, which is symmetrically installed with to can be hooked to push up face-to-face, draws the L shape counter-force steel of sample to transport persons or goods by cart；Institute
It states cuboid counter-force steel plate and L shape counter-force steel is transported persons or goods by cart jointly cuboid steel pressure head, spherical bearing, miniature screw rod hydraulic jack
It is provide with wherein；Draw sample, cuboid steel pressure head, spherical bearing, miniature screw rod hydraulic jack, cuboid counter-force steel plate in the top
Longitudinal axis.
2. a kind of solid concrete compression strength top according to claim 1 daraf(reciprocal of farad) detection device, it is characterised in that: described
Draw sample, including lower part cuboid, middle part square body and upper arcuate body in top；Lower part cuboid long side 100 ㎜, short side (78-
79) ㎜, (11-21) ㎜, lower surface are connect flash with solid concrete, and upper surface is connect with middle part square body lower surface, side
Face is parallel with solid concrete shaft section, and end face is parallel with solid concrete diameter section, and the longitudinal axis is located at solid concrete shaft section
It is interior；100 ㎜ of middle part square body side length, lower surface are connect with lower part cuboid upper surface, upper surface and upper arcuate body following table
Face is overlapped connection；Upper arcuate body lower surface is overlapped connection, upper surface and cuboid steel pressure head with middle part square body upper surface
Lower surface holds out against contact, the locating slot of 1 ㎜ of symmetrical 2 width, 1 ㎜ of depth in the middle part of upper surface and shaft section parallel direction, and 2
Item positioning groove sidewall is parallel with middle part square body side, 2 20 ㎜ of locating slot inner wall distance, under slot bottom to middle part square body
30 ㎜ of surface vertical range.
3. a kind of solid concrete compression strength top according to claim 2 daraf(reciprocal of farad) detection device, it is characterised in that: described
Cuboid steel pressure head, 100 ㎜ of long side, 20 ㎜ of short side, thickness (10-20) ㎜, end face and toxoplasm end face same plane, lower surface
Sample toxoplasm upper surface is drawn to contact with top, upper surface center is connected by spherical bearing and miniature screw rod hydraulic jack head
It connects.
4. a kind of solid concrete compression strength top according to claim 3 daraf(reciprocal of farad) detection device, it is characterised in that: described
It is connected with the swivel nut with miniature screw rod hydraulic jack axis oriented normal on miniature screw rod hydraulic jack circumference side, is set in swivel nut
There is screw rod, the end of screw rod is equipped with the T-type box spanner for applying top pulling force；The miniature screw rod hydraulic jack circumference side
On be also connected with digital pressure gauge；The miniature screw rod hydraulic jack tail portion is connect with cuboid counter-force Interal fixation.
5. a kind of solid concrete compression strength top according to claim 4 daraf(reciprocal of farad) detection device, it is characterised in that: described
Cuboid counter-force steel plate, long side (120-140) ㎜, 100 ㎜ of short side, thickness (10-20) ㎜；Two sides short side edge, every side are uniform
It is drilled with 3 connected circular holes for connection of transporting persons or goods by cart with two L shape counter-force steel.
6. a kind of solid concrete compression strength top according to claim 5 daraf(reciprocal of farad) detection device, it is characterised in that: described
L shape counter-force steel is transported persons or goods by cart including lower part cuboid and top cuboid；Lower part cuboid upper surface outside and top cuboid following table
Face is fixedly connected；Lower part cuboid long side 100 ㎜, flash (10-20) ㎜, side and top draw the rectangular body side surface in sample lower part flat
Row, end face and top draw sample lower part cuboid end face to be in same plane；100 ㎜ of top cuboid long side, short side (10-20)
㎜, flash > (30+ cuboid steel pressure head thickness+spherical bearing height+miniature screw rod oil jack heights of roofs), side and top are drawn
The rectangular body side surface in sample lower part is parallel, and end face and top draw sample lower part cuboid end face to be in same plane；On the cuboid of top
Surface is drilled with 3 connecting screw holes corresponding with connected circular hole position, and connection bolt can pass through connected circular hole precession and connect spiral shell
Hole；Supreme 10 ㎜ of minister's cube medial surface distance of lower part cuboid medial surface；Two face-to-face lower part cuboid medial surface distances
80㎜。
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| CN201920541407.3U CN209707266U (en) | 2019-04-20 | 2019-04-20 | A kind of solid concrete compression strength top daraf(reciprocal of farad) detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111829883A (en) * | 2019-04-20 | 2020-10-27 | 程彦 | Solid concrete compressive strength czochralski method detection device |
| CN112014214A (en) * | 2020-09-03 | 2020-12-01 | 山东大学 | Cement stone microcosmic single-side splitting test device and method |
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2019
- 2019-04-20 CN CN201920541407.3U patent/CN209707266U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111829883A (en) * | 2019-04-20 | 2020-10-27 | 程彦 | Solid concrete compressive strength czochralski method detection device |
| CN112014214A (en) * | 2020-09-03 | 2020-12-01 | 山东大学 | Cement stone microcosmic single-side splitting test device and method |
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