CN103018113A - Device for detecting concrete compressive strength based on force-guiding lever-type in-situ single shear method - Google Patents
Device for detecting concrete compressive strength based on force-guiding lever-type in-situ single shear method Download PDFInfo
- Publication number
- CN103018113A CN103018113A CN2012102376462A CN201210237646A CN103018113A CN 103018113 A CN103018113 A CN 103018113A CN 2012102376462 A CN2012102376462 A CN 2012102376462A CN 201210237646 A CN201210237646 A CN 201210237646A CN 103018113 A CN103018113 A CN 103018113A
- Authority
- CN
- China
- Prior art keywords
- claw
- jamming claw
- seat
- concrete
- lift block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A device for detecting concrete compressive strength based on force-guiding lever-type in-situ single shear method comprises a lifting rod, a torque handle seat in threaded-connection with the upper part of the lifting rod and having a torque handle, a pressure sensor sheathed on the middle part of the lifting rod, a support base connected with the lower part of the lifting rod, a left clamping jaw base and a right clamping jaw base symmetrically connected with the support base, an arc-shaped left clamping jaw connected with the left clamping jaw base, and an arc-shaped right clamping jaw connected with the right clamping jaw base, wherein the lower part of the lifting rod is inserted into the support base from top to bottom; a lifting block is connected with the lower end of the lifting rod; and a lifting block guide mechanism is connected with the lifting block. The device provided by the invention is used in the in-situ single shear method for detecting concrete compressive strength, and can apply a shear force to a concrete core sample in a radial direction vertical to the pressure-bearing surface, so that shear failure occurs on the sheared concrete core sample along the radial direction vertical to the axial direction; and the peak value of the shear force is measured at the same time.
Description
Technical field
The present invention relates to concrete strength detection technique field, particularly a kind of shear of shearing the reinforcement of concrete.
Background technology
Concrete strength detection technique commonly used and method have Non-Destructive Testing and breakage to detect two kinds at present.Described Non-Destructive Testing is divided into rebound method, overall approach, ultrasonic method etc., and it is to utilize concrete surface hardness, carbonation depth and parameters,acoustic conversion concrete strength, and Non-Destructive Testing is easy to operate, but the testing result error is larger.Described damaged the detection is divided into again core drilling method, rear-extraction method, penetration method etc., it is the test specimen mechanics parameter conversion concrete strength that utilizes regulation, damaged testing result precision is higher, but concrete is damaged large, and there are shortcomings such as operation is many, operation inconvenience, such as core drilling method commonly used, its core test specimen drills through, cutting and the both ends of the surface depth of parallelism, end face and axis verticality processing and test specimen production process, operating process etc. are all comparatively loaded down with trivial details.
For overcoming the problems referred to above, the method that a kind of original position simple shear method detects concrete crushing strength is now proposed, the party's ratio juris is that concrete core sample is radially applied shearing force perpendicular to pressure-bearing surface, make and cut core shear failure radially perpendicular to axial direction, and come the detection method of establish concrete strength according to shear stress.In the method, need to shear and measure the shearing force peak value of cutting off moment to concrete core sample, but how shear concrete core sample, and how measure the shearing force peak value of cutting off moment, be a urgent problem.
Summary of the invention
The purpose of this invention is to provide the device that a kind of power of the leading lever original position simple shear method that concrete core sample can be cut off, measure simultaneously the shearing force peak value of cutting off moment detects concrete crushing strength.
For achieving the above object, the present invention adopts following technical scheme: a kind of power of leading lever original position simple shear method detects the device of concrete crushing strength, it is characterized in that: comprise lifting arm, be threaded in the torque handle seat with torque handle on lifting arm top, be enclosed within the pressure transducer at lifting arm middle part, be connected to the supporting seat of lifting arm bottom, symmetry is connected to left jamming claw seat and the right jamming claw seat on the supporting seat, and the left jamming claw and the right jamming claw that is connected to the circular arc on the right jamming claw seat that are connected to the circular arc on the left jamming claw seat, the bottom medial surface with right jamming claw on the bottom medial surface of described left jamming claw is provided with gritting one's teeth of being staggered.
The bottom of described lifting arm from top to bottom is inserted in the supporting seat, and the lower end of lifting arm is connected with lift block, is connected with again the lift block guiding mechanism on the lift block, and described supporting seat is provided with the lifting long guiding hole that matches with the lift block guiding mechanism.
Described left jamming claw seat is identical with the structure of right jamming claw seat, the claw terminal pad that includes connecting link and be connected as a single entity with connecting link, described connecting link is clipped in the supporting seat, the upper-end part of driving of connecting link is articulated and connected in the top of lift block and with an end of a force-guided stem, the other end of force-guided stem is articulated and connected with described lift block again, the lower end part of connecting link is connected on the supporting seat in the below of lift block and by master jaw bolted splice, described claw terminal pad is positioned at the below of supporting seat, and the claw terminal pad of left jamming claw seat is connected with left jamming claw, and the claw terminal pad of right jamming claw seat is connected with right jamming claw.
Below and claw terminal pad that described claw terminal pad is positioned at supporting seat are provided with draw-in groove, be equipped with boss on the upper end lateral surface of described left jamming claw and on the upper end lateral surface of right jamming claw, left jamming claw and right jamming claw all are stuck in the draw-in groove by boss, also be provided with the claw pressing plate at the inner side of left jamming claw and the inner side of right jamming claw, the claw pressing plate is detachably connected on the claw terminal pad by the claw set bolt, and simultaneously the claw pressing plate is pressed on left jamming claw and right jamming claw in the draw-in groove on the claw terminal pad.
Lifting arm cover between torque handle seat and pressure transducer has bearing.
Also cover has bearing seat on the lifting arm between torque handle seat and the pressure transducer, and described bearing is placed on the bearing seat, and bearing seat is placed on the pressure transducer again.
Described lift block guiding mechanism can be comprised of orienting sleeve and orienting sleeve clamping screw, and described orienting sleeve is threaded on the orienting sleeve clamping screw, and the orienting sleeve clamping screw is threaded on the lift block again.
The surface of contact of the surface of contact of described left jamming claw and claw pressing plate, right jamming claw and claw pressing plate all can be the from bottom to top inclined-plane of ecto-entad inclination.
The upper end of described supporting seat can be provided with flange, and has the sensor gib screw to pass from the bottom to top flange, pressure transducer and flange are linked together.
Compared with prior art the present invention has following characteristics and beneficial effect: the present invention is applied in the method for original position simple shear method detection concrete crushing strength, it is a kind of device that normal concrete compressive strength is used that detects, the present invention can be to concrete core sample radially apply shearing force perpendicular to pressure-bearing surface, make the concrete core sample of the being cut shear failure that occurs radially perpendicular to axial direction, and measure simultaneously the shearing force peak value of this moment.
When the present invention utilizes claw that concrete core sample is cut off, measure the shearing force peak value by pressure transducer, be applicable to the detection of the Structural Engineering concrete strength of C10-C80, have simple to operation, accurate quick, cost is low, applicability is strong advantage.
Be not subjected to the restriction of the surface configuration (such as convex surface, concave surface, curved surface, pitted skin etc.) of detected concrete when the present invention uses, be not subjected to the restriction of detected concrete size cross-sectional sizes yet, limited by pore-forming technique.That is to say that the present invention is not particularly limited the shape of detected concrete, the test position is also unrestricted, and detected concrete does not need any processing to process (surface of on-the-spot test position need not to process, and the concrete core sample that is drilled to need not processed yet).
Detection scope in the length of time of the present invention is wide, and all shear test blocks that can drill moulding all are suitable for, and the applicable age of concrete can be to 14 days, can be the stretch-draw of prestressed concrete and puts and the early construction in the length of time of concrete provides technical data.
Use the present invention in the method for simple shear method detection concrete crushing strength in position, damage to detected concrete is very little, drilling depth on the detected concrete only is a millimeter rank (25mm～30mm), so be fit to detect the concrete of Reinforcing Bar with Dense Disposition, belong to concrete Non-Destructive Testing new technique.
The method that has adopted original position simple shear method of the present invention to detect concrete crushing strength is a kind of method that detects the internal intensity of detected concrete, and the measuring accuracy of this method is higher than classic method, detects more convenient and quicker.Adopted original position simple shear method of the present invention to detect the compressive strength of detected detected concrete of the method for concrete crushing strength, have substantial different from present existing other concrete strength detecting methods, have good application value, can better improve and enrich the concrete strength detection technique.
Description of drawings
The present invention will be further described in detail below in conjunction with accompanying drawing.
Fig. 1 is that the master of the embodiment of the invention one looks synoptic diagram.
Fig. 2 is that synoptic diagram is looked on the left side of Fig. 1.
Fig. 3 is the synoptic diagram of A-A section among Fig. 1.
Fig. 4 is the synoptic diagram of B-B section among Fig. 2.
Fig. 5 is the schematic top plan view of the supporting seat among the embodiment one.
Fig. 6 is the synoptic diagram of C-C section among Fig. 5.
Fig. 7 is the synoptic diagram of D-D section among Fig. 5.
Fig. 8 is that the master of lift block looks synoptic diagram.
Fig. 9 is the schematic top plan view of lift block.
Figure 10 is the synoptic diagram of E-E section among Fig. 9.
Figure 11 is the schematic perspective view of a pair of master jaw.
Figure 12 is the schematic perspective view of left jamming claw.
Figure 13 is the schematic perspective view of right jamming claw.
Figure 14 is the schematic perspective view of the embodiment of the invention two.
Figure 15 is the schematic perspective view of the supporting seat in the embodiment of the invention two.
Reference numeral: 1-bearing seat, the 2-lifting arm, the 3-supporting seat, 4-left jamming claw seat, 5-right jamming claw seat, the 6-lift block, the 7-left jamming claw, the 8-right jamming claw, the 9-orienting sleeve, 10-orienting sleeve clamping screw, 11-master jaw bolt, 12-claw set bolt, the 13-torque handle, the 14-bearing, 15-torque handle seat, the 16-pressure transducer, 17-claw pressing plate, 18-promotes long guiding hole, 19-claw terminal pad, the 20-connecting link, the 21-draw-in groove, the 22-boss, 23-grits one's teeth, the 24-force-guided stem, the 25-bearing pin, the 26-flange, 27-sensor gib screw.
Embodiment
Embodiment one is referring to Fig. 1-4, this power of leading lever original position simple shear method detects the device of concrete crushing strength, comprise lifting arm 2, be threaded in the torque handle seat 15 with torque handle 13 on lifting arm top, be enclosed within the pressure transducer 16 at lifting arm middle part, be connected to the supporting seat 3 of lifting arm bottom, symmetry is connected to left jamming claw seat 4 and the right jamming claw seat 5 on the supporting seat, and be connected to the left jamming claw 7 of the circular arc on the left jamming claw seat and be connected to the right jamming claw 8 of the circular arc on the right jamming claw seat, on the bottom medial surface of described left jamming claw 7 and the bottom medial surface of right jamming claw 8 be provided be staggered grit one's teeth 23.
Referring to Fig. 4-10, the bottom of described lifting arm 2 from top to bottom is inserted in the supporting seat 3, the lower end of lifting arm 2 is connected with lift block 6, is connected with again the lift block guiding mechanism on the lift block 6, and described supporting seat 3 is provided with the lifting long guiding hole 18 that matches with the lift block guiding mechanism.The upper end of supporting seat 3 is provided with pressure transducer and adapts the flange 26 of (being arc), and has the sensor gib screw 27 to pass from the bottom to top flange 26, pressure transducer 16 and flange 26 are linked together.
Referring to Fig. 4, Figure 11, described left jamming claw seat 4 is identical with the structure of right jamming claw seat 5, the claw terminal pad 19 that includes connecting link 20 and be connected as a single entity with connecting link, described connecting link 20 is clipped in the supporting seat, the end of the upper-end part of driving of connecting link 20 in the top of lift block 6 and by bearing pin 25 and a force-guided stem 24 is articulated and connected, the other end of force-guided stem 24 is articulated and connected by bearing pin 25 and described lift block 6 again, the lower end part of connecting link 20 is articulated and connected on supporting seat 3 in the below of lift block 6 and by master jaw bolt 11, described claw terminal pad 19 is positioned at the below of supporting seat 3, and the claw terminal pad of left jamming claw seat 4 is connected with left jamming claw 7, and the claw terminal pad of right jamming claw seat 5 is connected with right jamming claw 8.
Referring to Fig. 4, Figure 12, Figure 13, described claw terminal pad 19 is provided with draw-in groove 21, be equipped with boss 22 on the upper end lateral surface of described left jamming claw 7 and on the upper end lateral surface of right jamming claw 8, left jamming claw 7 and right jamming claw 8 all are stuck in the draw-in groove 21 by boss 22, also be provided with claw pressing plate 17 at the inner side of left jamming claw 7 and the inner side of right jamming claw 8, claw pressing plate 17 is detachably connected on the claw terminal pad 19 by claw set bolt 12, and simultaneously claw pressing plate 17 is pressed on left jamming claw 7 and right jamming claw 8 in the draw-in groove 21 on the claw terminal pad 19.Claw (left jamming claw 7 and right jamming claw 8) is connected on the master jaw (left jamming claw seat 4 and right jamming claw seat 5) by said structure, and the one, because claw will be sheared concrete, damage easily, so adopt said structure can make things convenient for dismounting and the replacing of claw.The 2nd, when claw was connected on left jamming claw seat 4 and the right jamming claw seat 5 by said structure, it was firmly tight to guarantee that claw (left jamming claw 7 is connected with right jamming claw) is connected with master jaw (left jamming claw seat 4 is connected with the right jamming claw seat).
During use, rotary torsion handle set 15, lifting arm 2 is promoted, lifting arm 2 drives on the lift block 6 and moves, promoting master jaw (left jamming claw seat 4 and right jamming claw seat 5) when moving on the lift block 6 rotates along master jaw bolt 11, this moment, the upper end of connecting link 20 was outwards mobile, and claw terminal pad 19 moves inward, and claw terminal pad 19 drives claw (left jamming claw 7 and right jamming claw 8) and clamps concrete core sample and shear concrete core sample.
In the present embodiment, lifting arm cover between torque handle seat 15 and pressure transducer 16 has bearing 14 and bearing seat 1, described bearing 14 is placed on the bearing seat 1, bearing seat 1 is placed on again on the pressure transducer 16, the effect of bearing 14 is the friction force that reduces between the lower surface of torque handle seat and the pressure transducer end face, helps to reduce to drive the concrete total output of shearing.
In the present embodiment, the lift block guiding mechanism is comprised of orienting sleeve 9 and orienting sleeve clamping screw 10, and described orienting sleeve 9 is threaded on the orienting sleeve clamping screw 10, and orienting sleeve clamping screw 10 is threaded in again on the lift block 6.
In the present embodiment, the surface of contact of the surface of contact of left jamming claw 7 and claw pressing plate 17, right jamming claw 8 and claw pressing plate 17 all can be the inclined-plane that tilts of ecto-entad from bottom to top, and design can make claw pressing plate 17 press left jamming claw 7 and right jamming claw 8 tighter more firm like this.
Embodiment two is referring to Figure 14, Figure 15, is do not have flange on the supporting seat 3 with the difference of embodiment one, and pressure transducer 16 only is to be placed on the supporting seat 3, and is not connected between the supporting seat 3.
The step of using the method (being the method that original position simple shear method detects concrete crushing strength) that the present invention detects concrete crushing strength is as follows.
Step 1, select N position as the shearing sample site that drills concrete core sample in detected concrete (comprising detected concrete structure and detected concrete), drill columniform concrete core sample (adopting the hollow diamond of diameter of phi 38mm～Φ 49mm) at the shearing sample site place that chooses, with the present invention all concrete core samples are sheared (after the stressed effect of concrete core sample, produce shear stress until concrete core sample is cut off), measure the shearing force peak value that concrete core sample is cut off moment with the pressure transducer in the present invention simultaneously, adopt data acquisition system (DAS) to record the shearing force peak value that all concrete core samples are cut off moment, by formula concrete shearing intensity (MPa)=F/S, calculate the concrete shearing intensity of all concrete core samples, wherein F is the shearing force peak value, S is the area of section of concrete core sample 3, with the concrete shearing intensity substitution concrete strength-measuring formula that obtains, calculate the concrete crushing strength of all concrete core samples according to the concrete strength-measuring formula, this concrete crushing strength is called again the concrete Conversion strength (by detecting concrete shear resistance, correlationship according to concrete shearing intensity and concrete crushing strength, be converted into concrete crushing strength, therefore be called the concrete Conversion strength).
In the present embodiment, the concrete strength-measuring formula is:
, in the formula
Expression the
The concrete Conversion strength (MPa) of individual concrete core sample;
Expression the
The concrete shearing intensity (MPa) of individual concrete core sample.In other embodiments, can also adopt other concrete strength-measuring formula (can be linear function equation, power function equation, exponential function equation etc., through regretional analysis, comprehensively determine according to related coefficient, standard deviation) calculate the concrete Conversion strength of concrete core sample.
The N that selects on a described detected concrete position can be any position, and adjacent two shear sample site can be arranged on the not ipsilateral of detected concrete.Preferred mode is that the shearing sample site of electing is evenly arranged in detected concrete, and adjacent two distances of shearing between the sample site are not less than 30mm, and the shearing sample site is not less than 25mm apart from the end limit of detected concrete.
The diameter of described concrete core sample is 38mm～49mm, and length is 25mm～30mm.Described concrete core sample both can be the concrete core sample that links together with detected concrete, also can be the concrete core sample that separates from detected concrete.
The corresponding relation that the present invention sets up according to the radial shear intensity level of concrete axial compression strength and concrete core sample, entity in detected concrete is drilled to concrete core sample, adopt the present invention that concrete core sample is carried out shear test, infer concrete crushing strength by the shear test shear resistance that draws and the strong formula of survey of setting up in advance.Use when of the present invention, the suffered simple stress of concrete core sample only is shearing force, and the destruction face of concrete core sample is consistent with the shearing force direction.
The present invention requires the inside and outside layer of detected concrete evenly, not have defective just for the intensity of detected concrete.Should not be less than 14 days the length of time of detected concrete, and the compressive strength of detected concrete should be in 10MPa～80MPa scope, and the thickness of detected concrete should be less than 80mm.The concrete of shearing the sample site place is answered the open defects such as free from flaw, loose, hole, honeycomb.Shear sample site and can be arranged in plane, curved surface, convex surface, concave surface, pitted skin (sprayed concrete).
Left jamming claw in the present invention, right jamming claw are inserted in concrete core sample (setting of left jamming claw, right jamming claw and concrete core sample vertical direction stagger mutually) and apply pretightning force, the present invention utilizes concrete core sample to position, and concrete core sample is to the invention provides counter-force (resistance).
By torque handle seat 15 and in conjunction with the connecting link principle, the present invention applies shearing force to concrete core sample, concrete core sample be subject to arc on left jamming claw, the right jamming claw protrude cut the shear stress effect of tooth after, equilibratory counter-force, when the shear stress of concrete core sample during less than the counter-force of need balance, concrete core sample is cut off, and measures the shearing force peak value that concrete core sample is cut off moment with the pressure transducer in the present invention.
Claims (7)
1. lead the device that power lever original position simple shear method detects concrete crushing strength for one kind, it is characterized in that: comprise lifting arm (2), be threaded in the torque handle seat (15) of the band torque handle (13) on lifting arm top, be enclosed within the pressure transducer (16) at lifting arm middle part, be connected to the supporting seat (3) of lifting arm bottom, symmetry is connected to left jamming claw seat (4) and the right jamming claw seat (5) on the supporting seat, and be connected to the left jamming claw (7) of the circular arc on the left jamming claw seat and be connected to the right jamming claw (8) of the circular arc on the right jamming claw seat, on the bottom medial surface of described left jamming claw (7) and the bottom medial surface of right jamming claw (8) be provided with grit one's teeth (23) that are staggered;
The bottom of described lifting arm (2) from top to bottom is inserted in the supporting seat (3), the lower end of lifting arm (2) is connected with lift block (6), lift block is connected with again the lift block guiding mechanism on (6), and described supporting seat (3) is provided with the lifting long guiding hole (18) that matches with the lift block guiding mechanism;
Described left jamming claw seat (4) is identical with the structure of right jamming claw seat (5), the claw terminal pad (19) that includes connecting link (20) and be connected as a single entity with connecting link, described connecting link (20) is clipped in the supporting seat, the upper-end part of driving of connecting link (20) is articulated and connected in the top of lift block (6) and with an end of a force-guided stem (24), the other end of force-guided stem (24) is articulated and connected with described lift block (6) again, the lower end part of connecting link (20) is articulated and connected on supporting seat (3) in the below of lift block (6) and by master jaw bolt (11), described claw terminal pad (19) is positioned at the below of supporting seat (3), and the claw terminal pad of left jamming claw seat (4) is connected with left jamming claw (7), and the claw terminal pad of right jamming claw seat (5) is connected with right jamming claw (8).
2. the power of leading lever original position simple shear method according to claim 1 detects the device of concrete crushing strength, it is characterized in that: described claw terminal pad (19) is provided with draw-in groove (21), be equipped with boss (22) on the upper end lateral surface of described left jamming claw (7) and on the upper end lateral surface of right jamming claw (8), left jamming claw (7) and right jamming claw (8) all are stuck in the draw-in groove (21) by boss (22), also be provided with claw pressing plate (17) at the inner side of left jamming claw (7) and the inner side of right jamming claw (8), claw pressing plate (17) is detachably connected on the claw terminal pad (19) by claw set bolt (12), and simultaneously claw pressing plate (17) is pressed on left jamming claw (7) and right jamming claw (8) in the draw-in groove (21) on the claw terminal pad (19).
3. the power of leading lever original position simple shear method according to claim 1 detects the device of concrete crushing strength, it is characterized in that: the lifting arm cover between torque handle seat (15) and pressure transducer (16) has bearing (14).
4. the power of leading lever original position simple shear method according to claim 3 detects the device of concrete crushing strength, it is characterized in that: the lifting arm cover between torque handle seat and pressure transducer has bearing seat (1), described bearing (14) is placed on the bearing seat (1), and bearing seat (1) is placed on again on the pressure transducer (16).
5. the power of leading lever original position simple shear method according to claim 1 detects the device of concrete crushing strength, it is characterized in that: described lift block guiding mechanism is comprised of orienting sleeve (9) and orienting sleeve clamping screw (10), described orienting sleeve (9) is threaded on the orienting sleeve clamping screw (10), and orienting sleeve clamping screw (10) is threaded in again on the lift block (6).
6. the power of leading lever original position simple shear method according to claim 1 detects the device of concrete crushing strength, it is characterized in that: described left jamming claw (7) is the from bottom to top inclined-plane of ecto-entad inclination with surface of contact, the right jamming claw (8) of claw pressing plate (17) with the surface of contact of claw pressing plate (17).
7. the power of leading lever original position simple shear method according to claim 1 detects the device of concrete crushing strength, it is characterized in that: the upper end of described supporting seat (3) is provided with flange (26), and has sensor gib screw (27) to pass from the bottom to top flange (26), pressure transducer (16) and flange (26) are linked together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210237646.2A CN103018113B (en) | 2012-07-11 | 2012-07-11 | Device for detecting concrete compressive strength based on force-guiding lever-type in-situ single shear method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210237646.2A CN103018113B (en) | 2012-07-11 | 2012-07-11 | Device for detecting concrete compressive strength based on force-guiding lever-type in-situ single shear method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103018113A true CN103018113A (en) | 2013-04-03 |
| CN103018113B CN103018113B (en) | 2014-09-24 |
Family
ID=47966967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210237646.2A Active CN103018113B (en) | 2012-07-11 | 2012-07-11 | Device for detecting concrete compressive strength based on force-guiding lever-type in-situ single shear method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103018113B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335896A (en) * | 2013-07-22 | 2013-10-02 | 建研科技股份有限公司 | In-situ simple shear apparatus |
| CN105067454A (en) * | 2015-09-07 | 2015-11-18 | 建研科技股份有限公司 | Device and method for detecting tensile strength and compressive strength of concrete by in-situ shearing and splitting method |
| TWI723543B (en) * | 2019-09-16 | 2021-04-01 | 黃建德 | Testing device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB946196A (en) * | 1961-06-07 | 1964-01-08 | Procedes Et Materiels Ind S A | Jack device |
| US4445387A (en) * | 1982-06-17 | 1984-05-01 | Regents Of The University Of Minnesota | Compression shear test jig |
| JPH11153596A (en) * | 1997-11-21 | 1999-06-08 | Nishimatsu Constr Co Ltd | Fiber sheet testing method and shear tester for fiber sheet using the same |
| CN2698523Y (en) * | 2004-03-23 | 2005-05-11 | 陆邕逢 | Double-level type labor-saving pincer |
| CN101315320A (en) * | 2008-06-24 | 2008-12-03 | 中国科学院武汉岩土力学研究所 | Compression shear test device |
| CN202182847U (en) * | 2011-07-28 | 2012-04-04 | 中国建筑科学研究院 | Direct-pulling self-locking mechanical direct pulling head |
| CN102426143A (en) * | 2011-09-22 | 2012-04-25 | 中国建筑科学研究院 | Method and device for detecting compressive strength of concrete by shearing resistance method |
-
2012
- 2012-07-11 CN CN201210237646.2A patent/CN103018113B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB946196A (en) * | 1961-06-07 | 1964-01-08 | Procedes Et Materiels Ind S A | Jack device |
| US4445387A (en) * | 1982-06-17 | 1984-05-01 | Regents Of The University Of Minnesota | Compression shear test jig |
| JPH11153596A (en) * | 1997-11-21 | 1999-06-08 | Nishimatsu Constr Co Ltd | Fiber sheet testing method and shear tester for fiber sheet using the same |
| CN2698523Y (en) * | 2004-03-23 | 2005-05-11 | 陆邕逢 | Double-level type labor-saving pincer |
| CN101315320A (en) * | 2008-06-24 | 2008-12-03 | 中国科学院武汉岩土力学研究所 | Compression shear test device |
| CN202182847U (en) * | 2011-07-28 | 2012-04-04 | 中国建筑科学研究院 | Direct-pulling self-locking mechanical direct pulling head |
| CN102426143A (en) * | 2011-09-22 | 2012-04-25 | 中国建筑科学研究院 | Method and device for detecting compressive strength of concrete by shearing resistance method |
Non-Patent Citations (2)
| Title |
|---|
| 周爱兆 等: "接触面等应力增量比路径单剪试验及模型研究", 《四川大学学报》, vol. 41, no. 4, 31 July 2009 (2009-07-31), pages 76 - 81 * |
| 高俊合 等: "土与混凝土接触面特性的大型单剪试验研究及数值模拟", 《土木工程学报》, vol. 33, no. 4, 31 August 2000 (2000-08-31), pages 42 - 46 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335896A (en) * | 2013-07-22 | 2013-10-02 | 建研科技股份有限公司 | In-situ simple shear apparatus |
| CN103335896B (en) * | 2013-07-22 | 2015-07-08 | 建研科技股份有限公司 | In-situ simple shear apparatus |
| CN105067454A (en) * | 2015-09-07 | 2015-11-18 | 建研科技股份有限公司 | Device and method for detecting tensile strength and compressive strength of concrete by in-situ shearing and splitting method |
| CN105067454B (en) * | 2015-09-07 | 2018-10-26 | 建研科技股份有限公司 | Device and method for detecting tensile strength and compressive strength of concrete by in-situ shearing and splitting method |
| TWI723543B (en) * | 2019-09-16 | 2021-04-01 | 黃建德 | Testing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103018113B (en) | 2014-09-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103018113B (en) | Device for detecting concrete compressive strength based on force-guiding lever-type in-situ single shear method | |
| CN103674707A (en) | System and method for measuring direct tensile strength and deformation of rock | |
| CN105319039A (en) | Vibration fatigue testing method for large-bypass-ratio engine fan blade with shoulder | |
| CN103217344B (en) | On-site measuring device for concrete strength | |
| CN102798574B (en) | Lifting displacement type device for detection of concrete compression strength by method of in-situ single shear | |
| CN108593461A (en) | rubber performance test method | |
| CN102854070B (en) | Concrete core simple-shear device | |
| CN114878383A (en) | Accurate detection device of pile body concrete intensity | |
| CN101620051A (en) | Concrete pulling-stripping instrument | |
| CN206146740U (en) | Bituminous mixture freeze -thaw split test anchor clamps | |
| CN102901666B (en) | Double-shear device for concrete core sample | |
| CN102200501B (en) | On-site measuring apparatus for local mechanical properties of materials | |
| CN216718067U (en) | Anti-rotation self-centering bending test tool | |
| CN214201007U (en) | Wireless concrete strength detector for house safety detection | |
| CN105067454B (en) | Device and method for detecting tensile strength and compressive strength of concrete by in-situ shearing and splitting method | |
| CN209707266U (en) | A kind of solid concrete compression strength top daraf(reciprocal of farad) detection device | |
| CN209446411U (en) | A kind of concrete crushing strength on-site detecting device of concrete segment | |
| CN113188930A (en) | Three-dimensional fracture expansion test experimental device and method in high-precision rock sample loading | |
| CN214622091U (en) | Cylindric solid concrete compressive strength detection device | |
| JP2005265738A (en) | Portable twist tester and elastic constant/twisting strength testing method | |
| CN111289370A (en) | Solid concrete compressive strength ring stretch-cutting method detection device | |
| CN214749471U (en) | Precast concrete component compressive strength angle pressure method detection device | |
| CN102721617A (en) | Method for detecting concrete compression strength by using single shear method | |
| CN103335896B (en) | In-situ simple shear apparatus | |
| CN216132822U (en) | A centering positioner for concrete sample compressive strength is experimental |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |