CN108896422A - Muscle material and Bond Performance Between Concrete experimental rig and method under a kind of cyclic reverse loading - Google Patents
Muscle material and Bond Performance Between Concrete experimental rig and method under a kind of cyclic reverse loading Download PDFInfo
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- CN108896422A CN108896422A CN201811065078.6A CN201811065078A CN108896422A CN 108896422 A CN108896422 A CN 108896422A CN 201811065078 A CN201811065078 A CN 201811065078A CN 108896422 A CN108896422 A CN 108896422A
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- 239000000463 material Substances 0.000 title claims abstract description 102
- 210000003205 muscle Anatomy 0.000 title claims abstract description 101
- 238000011068 loading method Methods 0.000 title claims abstract description 89
- 125000004122 cyclic group Chemical group 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000012360 testing method Methods 0.000 claims abstract description 155
- 239000011159 matrix material Substances 0.000 claims description 34
- 238000005259 measurement Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 4
- 238000002679 ablation Methods 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 230000003319 supportive effect Effects 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/36—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by pneumatic or hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to architectural engineering Test And Check Technology fields, more particularly to muscle material under a kind of cyclic reverse loading and Bond Performance Between Concrete experimental rig and method, including loading frame and strain transducer mechanism；The loading frame includes upper load plate, lower load plate, screw rod, force transmitting board, flexural pivot component and connecting rod, the upper load plate, the quadrangle of lower load plate and force transmitting board is provided with screw hole, the screw rod is each passed through screw hole and the fastening nut by being equipped on screw rod connects integral loading frame, the strain transducer mechanism includes loading end deformation-sensor mechanism, free end deformation-sensor mechanism and test specimen sensor mechanism, muscle material and Bond Performance Between Concrete experimental rig and method under cyclic reverse loading of the invention, simple structure, facilitate test specimen handling and test operation, it can be achieved to be precisely controlled, it can get accurate test data and result by the load control of multifunctional electrohydraulic servo testing machine and existing data acquisition technology.
Description
Technical field
The present invention relates to architectural engineering Test And Check Technology fields, more particularly to muscle material and coagulation under a kind of cyclic reverse loading
Native Test about Bond Strength device and method.
Background technique
In concrete structure, good adhesive property is to guarantee two kinds of muscle material and concrete not between muscle material and concrete
With the key that material effectively cooperates, muscle material is usually reinforcing bar and fiber composite polymer reinforcement, for holding for concrete structure
It carries the Mechanical Behavior Analysis such as power calculating, crack, deformation and failure form to be of great significance, therefore, for a long time by scientific research
With the concern of engineers and technicians.It is strong to the bonding mechanism under unidirectional load action between muscle material and concrete, failure mode, bonding
Degree and slip property and its influence factor etc. have also carried out numerous studies, and in practical projects, bridge, marine structure etc.
Structure is subjected to the effect of impact repeatedly of vehicle, wave etc..To viscous between muscle material and concrete under two-way course under cyclic loading
It ties performance and carries out experimental study, basic foundation can be provided for the Concrete Structure Design and theory analysis.But at present about muscle material with
The adhesion test device of concrete is suitable for the load test of monotonous closing load more, for the adhesive property under two-way course under cyclic loading
Experimental rig still has to be developed and perfect.
Such as a kind of existing bond and anchor property detection device of multi-functional easy assembling type（Patent No. CN103837471B）, including
Assemble turntable, clip type assembling anchorage, displacement sensor, frame assembly and four elongated steel threaded rods.On steel threaded rod
End is connected with assembling turntable, and lower end is connected with frame assembly；Clip type assemble anchorage setting assembling turntable and test specimen to be measured it
Between, lower end is closely connect with the end of test specimen to be measured, and upper end is closely connect with assembling turntable；Displacement sensor one end is fixed on
On the muscle material of test specimen to be measured, the other end passes through frame assembly and contacts with test specimen to be measured.Though the device of the invention can be used for detecting
Adhesive property under cyclic reverse loading between muscle material and concrete substrate, but there are the following problems：One is a lack of deflection mechanism, once muscle
Material, which glances off or load off-axis because pouring reason, can all bring test error, second is that can make muscle using screw thread loading method
Material is turned round, and test error is further increased, and the especially influence to fiber composite polymer reinforcement is bigger；Third is that no matter test specimen is pacified
Dress, the clamping of muscle material, or load operating process are all relatively complicated, laborious time-consuming, cause test efficiency lower, it is difficult to realize accurate
Controlling test simultaneously obtains precision test result.
Therefore, the adhesive property to study muscle material and concrete under two-way course under cyclic loading, it is necessary to develop a set of energy
Enough overcome the muscle material and Bond Performance Between Concrete experimental rig of drawbacks described above.
Summary of the invention
It is an object of the invention to overcome defect described in background technique, to realize a kind of simple structure, conveniently
Muscle material and Bond Performance Between Concrete experimental rig and side under the cyclic reverse loading being precisely controlled can be achieved in test specimen handling and test operation
Method.
For achieving the above object, the technical scheme is that：Muscle material and concrete binding under a kind of cyclic reverse loading
Performance test apparatus, including loading frame and strain transducer mechanism；The loading frame include upper load plate, lower load plate,
The quadrangle of screw rod, force transmitting board, flexural pivot component and connecting rod, the upper load plate, lower load plate and force transmitting board is provided with screw hole,
The screw rod is each passed through screw hole and the fastening nut by being equipped on screw rod connects integral loading frame, it is described on
It is arranged with spring on screw rod between load plate and lower load plate or support nut carrys out load plate on jacking, when every silk of release
When the fastening nut of bar upper end, spring can hold up upper load plate, convenient for the installation of test specimen.The spring strength and deflection
Design be advisable with meeting to hold up load plate and provide enough separation spaces for test specimen.In the upper and lower load plate
The heart is provided with the muscle material through-hole passed through for muscle material, and concrete sample matrix is installed between upper and lower load plate, and on test specimen matrix
Portion muscle material top is fastened in the hydraulic jaw above multifunctional electrohydraulic servo testing machine；The force transmitting board is solid by fastening nut
Surely it is set on the screw rod below lower load plate, flexural pivot component is arranged in the bottom center of force transmitting board, and flexural pivot component passes through connecting rod
Load transducer is connected, the connecting rod bottom end connect with load transducer silk is fastened on the liquid below multifunctional electrohydraulic servo testing machine
In bar hold, the bulb and ball-and-socket of the flexural pivot component using tight fit and can make bulb flexible rotating in ball-and-socket, flexural pivot
The setting of component can avoid moment of flexure bring test error；
The strain transducer mechanism includes loading end deformation-sensor mechanism, free end deformation-sensor mechanism and test specimen sensing
Device mechanism, loading end deformation-sensor mechanism are fixedly installed at the test specimen muscle material of load plate upper center, it is described from
The test specimen muscle material of lower load plate lower central is fixedly installed on by end deformation-sensor mechanism, the fixation of test specimen sensor mechanism is set
It is placed at test specimen base side walls.
As the preferred technical solution of the present invention, the edges of boards of the upper load plate and/or lower load plate from center to side
On offer the test specimen mounting groove of strip, the width of the test specimen mounting groove matches with the muscle material diameter of test specimen matrix, institute
The setting of test specimen mounting groove is stated and need not dismantled when test specimen is installed upper load plate, improves test specimen disassembly efficiency.
As the preferred technical solution of the present invention, between the fastening nut and upper and lower load plate, force transmitting board on the screw rod
It is provided with spring washer, the spring washer includes the spring pad and ring washer stacked.
As the preferred technical solution of the present invention, a confession is respectively arranged in the two sides of the muscle material through-hole of the upper and lower load plate
The deformation-sensor perforation that deformation-sensor reference test bar passes through, convenient for accurately measuring slippage of the muscle material relative to test specimen matrix.
As the preferred technical solution of the present invention, the bottom end silk connected nut support of the screw rod is sufficient, the bottom of screw rod and nut
Support foot plays a supportive role to entire loading frame, and when installing test specimen, nut type support foot is screwed off from screw rod touches testing machine
Cushion cap holds up loading frame, prevents from toppling over；When load test, screws on nut type support foot to screw rod, screw rod is made to be detached from examination
Machine cushion cap is tested, prevents from influencing flexural pivot component to the Balanceregulation of test specimen stress.
As the preferred technical solution of the present invention, loading end deformation-sensor mechanism and free end deformation-sensor machine
Structure has identical structure, including deformation-sensor holding holes, postive stop baffle, epipodite, muscle material holding holes and main limb, deformation-sensor
Loading end deformation-sensor and free end deformation-sensor are positioned at adding for test specimen muscle material respectively by fastening screw by holding holes
End and free end are carried, two postive stop baffles are integrally stretched out in the side of main limb, and epipodite is stuck in centre and is formed by two postive stop baffles
It being slidably matched, epipodite is connect by fastening screw with main limb, and opposite side is respectively provided with semicircular arc card slot in the middle part of main limb and epipodite,
Muscle material holding holes are formed, drive epipodite along the aperture of the adjustable muscle material holding holes of sliding of postive stop baffle by adjusting fastening screw
Size realizes the clamping to different thicknesses muscle material.
As the preferred technical solution of the present invention, the test specimen sensor mechanism includes upper element and lower component；On
Parts include clamping nail, the left limb of upper element being wholely set and the right limb of upper element, lateral clip, longitudinal clip, transverse direction
Top plate, transversely deforming sensor and linear deformation sensor；The left limb of lower component that lower component includes clamping nail, is wholely set
With the right limb of lower component, lateral clip, lateral top plate, longitudinal top plate and transversely deforming sensor；Upper element and lower component
Be fixed in test specimen base side walls by clamping nail respectively, the left limb of upper element and the right limb of upper element, the left limb of lower component and
The right limb of lower component is symmetrical arranged, and lateral top plate, upper element is arranged in the both ends of the left limb of upper element and the left limb of lower component
Lateral clip is arranged in the both ends of right limb and the right limb of lower component, and transversely deforming sensor is fixedly installed in lateral clip, top
The left limb of component and longitudinal clip, the left limb of lower component and the right limb of lower component is fixedly installed with middle side part outside the right limb of upper element
Longitudinal top plate corresponding with longitudinal clip is fixedly installed in outer middle side part, and the longitudinal direction clip is for clamping linear deformation sensing
Device, the linear deformation sensor head are abutted with longitudinal top plate.
As the preferred technical solution of the present invention, the test specimen sensor mechanism includes longitudinal measurement plate, linear deformation biography
Sensor and sensor mount, the longitudinal direction measurement plate are symmetrically fixedly installed on the side wall of test specimen matrix both ends, the sensor
Mounting rack is fixedly installed on respectively at the bottom surface and upper top edge of upper and lower load plate, is clamped on the sensor mount
Linear deformation sensor, the linear deformation sensor head are abutted with longitudinal measurement plate.
As the preferred technical solution of the present invention, the lower load plate and the upper surface of test specimen substrate contact are outside by center
Various sizes of graduation mark is identified, successively convenient for the location and installation of test specimen.
Muscle material and Bond Performance Between Concrete test method, include the following steps under a kind of cyclic reverse loading：
Step 1：Prepare muscle material and Bond Performance Between Concrete experimental rig under a set of cyclic reverse loading as described above；
Step 2：Loading frame is placed on multifunctional electrohydraulic servo testing machine cushion cap, by screwing or loosening nut supports sufficient phase
It to the height of screw rod, be clamped in the connecting rod connect with load transducer silk just can below multifunctional electrohydraulic servo testing machine
In hydraulic jaw；
Step 3：Unscrew the fastening nut at the top of screw rod, spring or support nut hold up upper load plate, when upper load plate and it is lower plus
When test specimen matrix is easily installed in space between support plate enough, by the loading end of test specimen muscle material and free end respectively along upper load plate
It is pushed into the test specimen mounting groove of lower load plate, and test specimen matrix is accurately positioned by the graduation mark of lower load plate top surface mark；
Step 4：The fastening nut at the top of screw rod is screwed, is clamped in test specimen matrix in loading frame；
Step 5：Loading end deformation-sensor mechanism is fixed in the loading end of test specimen muscle material and free end respectively and free end deformation passes
Sensor mechanism；
Step 6：Successively the upper element and lower component of installation clamping deformation-sensor, the longitudinal direction of left and right two become on test specimen matrix
Shape sensor, two upper lateral deformation-sensor of front and back and two lower, transverse deformation-sensors, by each deformation-sensor and
Load transducer distinguishes external Acquisition Instrument and computer, to realize the real-time display and acquisition of data；
Step 7：Multifunctional electrohydraulic servo testing machine upper beam height is adjusted, is made on the top of test specimen muscle material can just be clamped in
In the hydraulic jaw in portion；
Step 8：The nut support foot of screw rod bottom is screwed on, makes screw rod ablation experiment machine cushion cap and is in free state；
Step 9：Testing machine is started, is tested according to the loading procedure of setting.
The beneficial effect of muscle material and Bond Performance Between Concrete experimental rig and method under cyclic reverse loading of the invention：
1. muscle material and Bond Performance Between Concrete experimental rig and method, simple structure facilitate test specimen under cyclic reverse loading of the invention
Precisely control can be achieved in handling and test operation, adopts by the load control of multifunctional electrohydraulic servo testing machine and existing data
Collection technology can get accurate test data and result.
Fastening spiral shell 2. muscle material and Bond Performance Between Concrete experimental rig and method under cyclic reverse loading of the invention, on screw rod
Be provided with spring washer between female and upper and lower load plate, force transmitting board, spring washer can avoid when deflecting loads test specimen by
Excessive impact.
3. muscle material and Bond Performance Between Concrete experimental rig and method under cyclic reverse loading of the invention, upper load plate and/or
Lower load plate is offered the test specimen mounting groove of strip from center on the edges of boards of side, and the design of test specimen mounting groove pacifies test specimen
Need not dismantle upper load plate when dress, significantly improve the disassembly efficiency of test specimen.
4. muscle material and Bond Performance Between Concrete experimental rig and method under cyclic reverse loading of the invention, main limb and epipodite middle part
Opposite side is respectively provided with semicircular arc card slot, forms muscle material holding holes, drives epipodite along postive stop baffle by adjusting fastening screw
The adjustable muscle material holding holes of sliding pore size, realize the clamping to different thicknesses muscle material, improve equipment to different shaped
The adaptability of number muscle material.
5. muscle material and Bond Performance Between Concrete experimental rig and method under cyclic reverse loading of the invention, lower load plate and test specimen
The upper surface of substrate contact is successively identified the graduation mark of different sizes and shapes, lower load plate upper surface difference ruler by center outward
Very little and shape graduation mark improves the positioning accuracy of test specimen.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of muscle material and Bond Performance Between Concrete experimental rig embodiment 1 under cyclic reverse loading of the present invention；
Fig. 2 is the overlooking structure diagram of the upper and lower load plate of embodiment 1；
Fig. 3 is the overlooking structure diagram of the force transmitting board of embodiment 1；
Fig. 4 is the loading end of embodiment 1 and the overlooking structure diagram of free end deformation-sensor mechanism；
Fig. 5 is the upper element overlooking structure diagram of embodiment 1；
Fig. 6 is the lower component overlooking structure diagram of embodiment 1；
Fig. 7 is the structural schematic diagram of the embodiment of the present invention 2；
Fig. 8 is the overlooking structure diagram of the upper and lower load plate of the embodiment of the present invention 3；
Fig. 9 is the structural schematic diagram of the embodiment of the present invention 4.
In figure：1- loading frame, the upper load plate of 101-, 111- muscle material through-hole, load plate under 102-, 103- screw rod, 104-
Force transmitting board, 105- flexural pivot component, 106- connecting rod, 107- load transducer, 2- strain transducer mechanism, the deformation of 201- loading end
Sensor mechanism, 211- include deformation-sensor holding holes, 212- postive stop baffle, 213- epipodite, 214- muscle material holding holes, 215- master
Limb, 216- loading end deformation-sensor, the free end 217- deformation-sensor, the free end 202- deformation-sensor mechanism, 203- examination
Part sensor mechanism, 231- upper element, 311- clamping nail, the left limb of 312- upper element, the right limb of 313- upper element, 314- are horizontal
To clip, the longitudinal direction 315- clip, 316- transverse direction top plate, 317- transversely deforming sensor, 318- linear deformation sensor, under 232-
Parts, the left limb of 321- lower component, the right limb of 322- lower component, the longitudinal direction 323- top plate, 3- fastening nut, 4- spring, 5- examination
Part matrix, 6- test specimen muscle material, 7- test specimen mounting groove, 8- spring washer, the perforation of 9- deformation-sensor, 10- nut support foot, 11- are carved
Spend line, 12- support nut, the longitudinal direction 13- measurement plate, 14- sensor mount, 15- screw hole, 16- testing machine cushion cap.
Specific embodiment
With reference to the accompanying drawing and by specific embodiment to muscle material and concrete binding under cyclic reverse loading of the invention
Performance test apparatus does more detailed description.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For the convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must have specific side
Position is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
Embodiment 1：
Muscle material and Bond Performance Between Concrete experimental rig under cyclic reverse loading of the invention, including loading frame 1 and strain transducer
Mechanism 2；The loading frame 1 includes upper load plate 101, lower load plate 102, screw rod 103, force transmitting board 104, flexural pivot component 105
The quadrangle of connecting rod 106, the upper load plate 101, lower load plate 102 and force transmitting board 104 is provided with screw hole 15, the silk
Bar 103 is each passed through screw hole 15 and the fastening nut 3 by being equipped on screw rod 103 connects integral loading frame, institute
It states and is arranged with spring 4 on the screw rod 103 between load plate 101 and lower load plate 102 and comes load plate 101 on jacking, it is described
Upper and lower load plate 101,102 is provided centrally with the muscle material through-hole 111 passed through for muscle material, and concrete sample matrix 5 is installed in
Between upper and lower load plate 101,102, and the 5 top top Jin Cai of test specimen matrix is fastened on above multifunctional electrohydraulic servo testing machine
Hydraulic jaw in；The force transmitting board 104 is fixedly installed on the screw rod 103 of lower 102 lower section of load plate by fastening nut 3,
Flexural pivot component 105 is arranged in the bottom center of force transmitting board 104, and flexural pivot component 105 connects load transducer 107 by connecting rod 106,
It is fastened in the hydraulic jaw below multifunctional electrohydraulic servo testing machine with 106 bottom end of connecting rod that load transducer 107 connect,
The bulb and ball-and-socket of the flexural pivot component 105 are using tight fit and can make bulb flexible rotating in ball-and-socket, flexural pivot component 105
Setting can avoid moment of flexure bring test error；
The strain transducer mechanism 2 includes loading end deformation-sensor mechanism 201,202 and of free end deformation-sensor mechanism
Test specimen sensor mechanism 203, loading end deformation-sensor mechanism 201 are fixedly installed on the examination of 1 upper center of load plate
At part muscle material 6, free end deformation-sensor mechanism 202 is fixedly installed on the test specimen muscle material 6 of lower 102 lower central of load plate
Place, test specimen sensor mechanism 203 are fixedly installed on 5 side-walls of test specimen matrix.
The upper load plate 101 and lower load plate 102 are offered the test specimen peace of strip from center on the edges of boards of side
Tankage 7, the width of the test specimen mounting groove 7 match with the muscle material diameter of test specimen matrix 5, the setting of the test specimen mounting groove 7
Need not dismantle upper load plate 101 when installing test specimen, improve test specimen disassembly efficiency.
It is respectively provided between fastening nut 3 and upper load plate 101, lower load plate 102, force transmitting board 104 on the screw rod 103
There is spring washer 8, the spring washer 8 includes the spring pad and ring washer stacked；The upper and lower load plate 101,102
The deformation-sensor perforation 9 passed through for deformation-sensor reference test bar is respectively arranged in the two sides of muscle material through-hole 111, surveys convenient for accurate
Obtain slippage of the test specimen muscle material 6 relative to test specimen matrix 5；The bottom end silk connected nut support foot 10 of the screw rod 103, screw rod 103
Bottom and nut support 10 pairs of entire loading frames of foot and play a supportive role.
Loading end deformation-sensor mechanism 201 and free end deformation-sensor mechanism 202 have identical structure, including
Deformation-sensor holding holes 211, postive stop baffle 212, epipodite 213, muscle material holding holes 214 and main limb 215, deformation-sensor clamping
Loading end deformation-sensor 216 and free end deformation-sensor 217 are positioned at test specimen muscle material respectively by fastening screw by hole 211
Two postive stop baffles 212 are integrally stretched out in 6 loading end and free end, the side of main limb 215, and two postive stop baffles 212 are by epipodite
213, which are stuck in intermediate and formation, is slidably matched, and epipodite 213 is connect by fastening screw with main limb 215, in main limb 215 and epipodite 213
Portion's opposite side is respectively provided with semicircular arc card slot, forms muscle material holding holes 214, drives 213 edge of epipodite by adjusting fastening screw
The pore size of the adjustable muscle material holding holes 214 of the sliding of postive stop baffle 212, realizes the clamping to different thicknesses test specimen muscle material 6.
The test specimen sensor mechanism 203 includes upper element 231 and lower component 232；Upper element 231 includes clamping
Nail 311, the left limb 312 of upper element being wholely set and the right limb 313 of upper element, lateral clip 314, longitudinal clip 315, transverse direction
Top plate 316, transversely deforming sensor 317 and linear deformation sensor 318；Lower component 232 includes clamping nail 311, integrally sets
The left limb 321 of the lower component set and the right limb 322 of lower component, lateral clip 314, lateral top plate 316, longitudinal top plate 323 and cross
To deformation-sensor 317；Upper element 231 and lower component 232 are fixed on 5 side wall of test specimen matrix by clamping nail 311 respectively
On, the left limb 312 of upper element and the right limb 313 of upper element, the left limb 321 of lower component and the right limb 322 of lower component are symmetrically set
It sets, lateral top plate 316 is arranged in the both ends of the left limb 312 of upper element and the left limb 321 of lower component, and the right limb 313 of upper element is under
Lateral clip 314 is arranged in the both ends of the right limb 322 of parts, and transversely deforming sensor 317 is fixedly installed in lateral clip 314,
The left limb 312 of upper element and longitudinal clip 315, the left limb of lower component is fixedly installed with the outer middle side part of the right limb 313 of upper element
321 and the outer middle side part of the right limb 322 of lower component longitudinal top plate 323 corresponding with longitudinal clip 315, the longitudinal direction is fixedly installed
Clip 315 is supported for clamping linear deformation sensor 318,318 measuring head of linear deformation sensor with longitudinal top plate 323
It connects.
The upper surface that the lower load plate 102 is contacted with test specimen matrix 5 successively identifies various sizes of quarter by center outward
Line 11 is spent, convenient for the location and installation of test specimen matrix 5.
Muscle material and Bond Performance Between Concrete test method, include the following steps under a kind of cyclic reverse loading：
Step 1：Prepare muscle material and Bond Performance Between Concrete experimental rig under a set of cyclic reverse loading as described above；
Step 2：Loading frame 1 is placed on multifunctional electrohydraulic servo testing machine cushion cap 16, by screw or loosening nut support
The height of the opposite screw rod 103 of foot 10, makes the connecting rod 106 connect with load transducer 107 that can just be clamped in multifunctional electrohydraulic
In hydraulic jaw below servo testing machine；
Step 3：Unscrew the fastening nut 3 at the top of screw rod 103, spring 4 holds up upper load plate 101, when upper load plate 101 and it is lower plus
When test specimen matrix 5 is easily installed in space between support plate 102 enough, by the loading end of test specimen muscle material 6 and free end respectively along upper
The test specimen mounting groove 7 of load plate 101 and lower load plate 102 push-in, and 11 essence of graduation mark identified by lower 102 top surface of load plate
Determine position test specimen matrix 5；
Step 4：The fastening nut 3 for screwing 103 top of screw rod, is clamped in test specimen matrix 5 in loading frame 1；
Step 5：The loading end of test specimen muscle material 6 and free end fix loading end deformation-sensor mechanism 201 respectively and free end becomes
Shape sensor mechanism 202；
Step 6：Successively installation clamps the upper element 231 and lower component 232 of deformation-sensor, left and right two on test specimen matrix 5
A linear deformation sensor 318, two upper lateral deformation-sensor 317 of front and back and two lower, transverse deformation-sensors 317, will
Each deformation-sensor and load transducer 107 distinguish external Acquisition Instrument and computer, to realize the real-time display and acquisition of data；
Step 7：Multifunctional electrohydraulic servo testing machine upper beam height is adjusted, be clamped in the top of test specimen muscle material 6 can just
In the hydraulic jaw on top；
Step 8：The nut support foot 10 of 103 bottom of screw rod is screwed on, makes 103 ablation experiment machine cushion cap 16 of screw rod and is in free shape
State；
Step 9：Testing machine is started, is tested according to the loading procedure of setting.
Embodiment 2：
Same as Example 1 repeats no more, the difference is that：Silk between the upper load plate 101 and lower load plate 102
It is arranged with support nut 12 on bar 103 and comes load plate 101 on jacking, between the support nut 12 and upper load plate 101
Spring washer 8 is provided on screw rod 103.
Embodiment 3：
Same as Example 1 repeats no more, the difference is that：The upper and lower load plate 101,102 is provided centrally with confession
The muscle material through-hole 111 that muscle material passes through, and upper load plate 101 and lower load plate 102 are not provided with from center on the edges of boards of side
Test specimen mounting groove 7 needs to disassemble upper load plate 101 from screw rod 103 when installing test specimen matrix 5.
Embodiment 4：
Same as Example 2 repeats no more, the difference is that：The upper load plate 101 is from center on the edges of boards of side
Test specimen mounting groove 7 is set, lower load plate 102 is not provided with test specimen mounting groove 7 on the edges of boards of side from center, when test specimen is installed,
The center hole of lower load plate 102 is inserted into the free end of test specimen muscle material 6 and pushes test specimen matrix 5 simultaneously, makes test specimen muscle material 6
Loading end enters in the mounting groove 7 of upper load plate 101；
The test specimen sensor mechanism 203 includes longitudinal measurement plate 13, linear deformation sensor 318 and sensor mount 14,
The longitudinal direction measurement plate 13 is symmetrically fixedly installed on 5 both ends side wall of test specimen matrix, and the sensor mount 14 is fixed respectively
It is set at bottom surface and the upper top edge of upper and lower load plate 101,102, longitudinal become is clamped on the sensor mount 14
Shape sensor 318,318 measuring head of linear deformation sensor are abutted with 13 plates of longitudinal measurement.
The foregoing is merely the schematical specific embodiment of the present invention, the range being not intended to limit the invention is any
The equivalent changes and modifications that those skilled in the art is made under the premise of not departing from present inventive concept and principle should all belong to
In the scope of protection of the invention.
Claims (10)
1. muscle material and Bond Performance Between Concrete experimental rig under a kind of cyclic reverse loading, it is characterised in that：Including loading frame and answer
Become sensor mechanism；The loading frame includes upper load plate, lower load plate, screw rod, force transmitting board, flexural pivot component and connecting rod,
The quadrangle of the upper load plate, lower load plate and force transmitting board is provided with screw hole, and the screw rod is each passed through screw hole and passes through
The fastening nut that is equipped on screw rod connects integral loading frame, on the screw rod between the upper load plate and lower load plate
It is arranged with spring or support nut carrys out load plate on jacking, what being provided centrally with of the upper and lower load plate passed through for muscle material
Muscle material through-hole, concrete sample matrix are installed between upper and lower load plate, and the test specimen matrix top top Jin Cai is fastened on more function
In hydraulic jaw above energy electro-hydraulic servo testing machine；The force transmitting board is fixedly installed below lower load plate by fastening nut
Screw rod on, flexural pivot component is arranged in the bottom center of force transmitting board, and flexural pivot component is by connecting rod connection load transducer, with load
The connecting rod bottom end that sensor silk connects is fastened in the hydraulic jaw below multifunctional electrohydraulic servo testing machine；
The strain transducer mechanism includes loading end deformation-sensor mechanism, free end deformation-sensor mechanism and test specimen sensing
Device mechanism, loading end deformation-sensor mechanism are fixedly installed at the test specimen muscle material of load plate upper center, it is described from
The test specimen muscle material of lower load plate lower central is fixedly installed on by end deformation-sensor mechanism, the fixation of test specimen sensor mechanism is set
It is placed at test specimen base side walls.
2. muscle material and Bond Performance Between Concrete experimental rig under cyclic reverse loading according to claim 1, it is characterised in that：On
Load plate and/or lower load plate are offered the test specimen mounting groove of strip, the test specimen installation from center on the edges of boards of side
The width of slot and the muscle material diameter of test specimen matrix match.
3. muscle material and Bond Performance Between Concrete experimental rig under cyclic reverse loading according to claim 1, it is characterised in that：Institute
It states and is provided with spring washer between the fastening nut on screw rod and upper and lower load plate, force transmitting board, the spring washer includes folded
The spring pad and ring washer put.
4. muscle material and Bond Performance Between Concrete experimental rig under cyclic reverse loading according to claim 1, it is characterised in that：Institute
The two sides for stating the muscle material through-hole of upper and lower load plate are respectively arranged the deformation-sensor that one passes through for deformation-sensor reference test bar and wear
Hole, convenient for accurately measuring slippage of the muscle material relative to test specimen matrix.
5. muscle material and Bond Performance Between Concrete experimental rig under cyclic reverse loading according to claim 1, it is characterised in that：Institute
The bottom end silk connected nut support foot of screw rod is stated, the bottom of screw rod and nut support foot play a supportive role to entire loading frame.
6. muscle material and Bond Performance Between Concrete experimental rig under cyclic reverse loading according to claim 1, it is characterised in that：Add
Zai Duan deformation-sensor mechanism and free end deformation-sensor mechanism have identical structure, including deformation-sensor holding holes, limit
Loading end is deformed respectively by fastening screw and is sensed by position baffle, epipodite, muscle material holding holes and main limb, deformation-sensor holding holes
Device and free end deformation-sensor are positioned at loading end and the free end of test specimen muscle material, and two limits are integrally stretched out in the side of main limb
Epipodite is stuck in intermediate and formation and is slidably matched by baffle, two postive stop baffles, and epipodite is connect by fastening screw with main limb, main limb
It is respectively provided with semicircular arc card slot with opposite side in the middle part of epipodite, forms muscle material holding holes, drives epipodite by adjusting fastening screw
The pore size of the adjustable muscle material holding holes of sliding along postive stop baffle, realizes the clamping to different thicknesses muscle material.
7. muscle material and Bond Performance Between Concrete experimental rig under cyclic reverse loading according to claim 1, it is characterised in that：Institute
Stating test specimen sensor mechanism includes upper element and lower component；The upper element that upper element includes clamping nail, is wholely set
Left limb and the right limb of upper element, lateral clip, longitudinal clip, lateral top plate, transversely deforming sensor and linear deformation sensor；
Lower component includes clamping nail, the left limb of lower component being wholely set and the right limb of lower component, lateral clip, lateral top plate, indulges
To top plate and transversely deforming sensor；Upper element and lower component pass through clamping nail respectively and are fixed in test specimen base side walls,
The left limb of upper element and the right limb of upper element, the left limb of lower component and the right limb of lower component are symmetrical arranged, the left limb of upper element
Lateral top plate is set with the both ends of the left limb of lower component, the both ends setting of the right limb of upper element and the right limb of lower component laterally blocks
Hoop, transversely deforming sensor is fixedly installed in lateral clip, the left limb of upper element and equal with middle side part outside the right limb of upper element
Longitudinal clip is fixedly installed, the left limb of lower component and the outer middle side part of the right limb of lower component are fixedly installed corresponding with longitudinal clip
Longitudinal top plate, the longitudinal direction clip is for clamping linear deformation sensor, the linear deformation sensor head and longitudinal top
Plate abuts.
8. muscle material and Bond Performance Between Concrete experimental rig under cyclic reverse loading according to claim 1, it is characterised in that：Institute
Stating test specimen sensor mechanism includes longitudinal measurement plate, linear deformation sensor and sensor mount, the longitudinal direction measurement plate pair
Title is fixedly installed on the side wall of test specimen matrix both ends, and the sensor mount is fixedly installed on respectively under upper and lower load plate
At bottom surface and upper top edge, linear deformation sensor is clamped on the sensor mount, the linear deformation sensor is surveyed
Amount head is abutted with longitudinal measurement plate.
9. muscle material and Bond Performance Between Concrete are tested under cyclic reverse loading described in -8 any one claims according to claim 1
Device, it is characterised in that：The upper surface of lower load plate and test specimen substrate contact successively identifies various sizes of quarter by center outward
Line is spent, convenient for the location and installation of test specimen.
10. muscle material and Bond Performance Between Concrete test method under a kind of cyclic reverse loading, which is characterized in that include the following steps：
Step 1：Prepare muscle material and Bond Performance Between Concrete experimental rig under a set of cyclic reverse loading as described in claim 1；
Step 2：Loading frame is placed on multifunctional electrohydraulic servo testing machine cushion cap, by screwing or loosening nut supports sufficient phase
It to the height of screw rod, be clamped in the connecting rod connect with load transducer silk just can below multifunctional electrohydraulic servo testing machine
In hydraulic jaw；
Step 3：Unscrew the fastening nut at the top of screw rod, spring or support nut hold up upper load plate, when upper load plate and it is lower plus
When test specimen matrix is easily installed in space between support plate enough, by the loading end of test specimen muscle material and free end respectively along upper load plate
It is pushed into the test specimen mounting groove of lower load plate, and test specimen matrix is accurately positioned by the graduation mark of lower load plate top surface mark；
Step 4：The fastening nut at the top of screw rod is screwed, is clamped in test specimen matrix in loading frame；
Step 5：Loading end deformation-sensor mechanism is fixed in the loading end of test specimen muscle material and free end respectively and free end deformation passes
Sensor mechanism；
Step 6：Successively the upper element and lower component of installation clamping deformation-sensor, the longitudinal direction of left and right two become on test specimen matrix
Shape sensor, two upper lateral deformation-sensor of front and back and two lower, transverse deformation-sensors, by each deformation-sensor and
Load transducer distinguishes external Acquisition Instrument and computer, to realize the real-time display and acquisition of data；
Step 7：Multifunctional electrohydraulic servo testing machine upper beam height is adjusted, is made on the top of test specimen muscle material can just be clamped in
In the hydraulic jaw in portion；
Step 8：The nut support foot of screw rod bottom is screwed on, makes screw rod ablation experiment machine cushion cap and is in free state；
Step 9：Testing machine is started, is tested according to the loading procedure of setting.
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| CN110308092B (en) * | 2019-08-02 | 2021-12-24 | 河南工程学院 | Reinforced concrete adhesive property tensile testing machine |
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| CN112051161A (en) * | 2020-09-03 | 2020-12-08 | 大连理工大学 | Experimental device for be used for CLT board angle steel connecting piece shear behavior test |
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