CN108169124A - Armored concrete pull device and method - Google Patents
Armored concrete pull device and method Download PDFInfo
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- CN108169124A CN108169124A CN201810155272.7A CN201810155272A CN108169124A CN 108169124 A CN108169124 A CN 108169124A CN 201810155272 A CN201810155272 A CN 201810155272A CN 108169124 A CN108169124 A CN 108169124A
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- 239000004567 concrete Substances 0.000 title claims abstract description 114
- 238000000034 method Methods 0.000 title abstract description 13
- 238000012360 testing method Methods 0.000 claims abstract description 48
- 239000000284 extract Substances 0.000 claims abstract description 17
- 238000010998 test method Methods 0.000 claims abstract description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 36
- 238000000605 extraction Methods 0.000 claims description 19
- 239000000945 filler Substances 0.000 claims description 4
- 239000011150 reinforced concrete Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 10
- 230000001070 adhesive effect Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of armored concrete pull devices, including vertical loading frame and lateral loading frame, vertical loading frame includes top plate, vertical pull rod and the bottom plate below top plate, grips component is set on top plate, the upper and lower side of each vertical pull rod is connect respectively with top plate and bottom plate, and reinforced hole is provided in the middle part of bottom plate；Lateral loading frame includes load plate, support side plate, the anti-bar of lateral pull, pressure sensor and lateral loading element, at least two support components are fixed on bottom plate, support side plate is located at the both ends of bottom plate, the anti-bar of lateral pull is at least provided with two, each anti-bar of lateral pull passes through at least one support component and is connected in a support side plate, and lateral loading element extracts test specimen to the armored concrete between being positioned over two load plates and applies lateral load.A kind of test method using the armored concrete pull device, the experimental rig and method are also disclosed, makes result of the test closer with engineering practice.
Description
Technical field
The present invention relates to Bond Performance Between Concrete technical field of measurement and test, more particularly to reinforcing bar under a kind of complicated applied force state
The pull device and method of Bond Performance Between Concrete.
Background technology
Cementation between reinforcing bar and concrete makes to realize stress transfer between reinforcing bar and concrete, thus
Working stress necessary to structural bearing is set up in reinforcing bar and concrete.Bonding-slip relationship pair between reinforcing bar and concrete
Study reinforced concrete structure important in inhibiting.Domestic and international researcher has carried out a large amount of experimental study with regard to this, wherein pulling out
It is more commonly used research method to go out experiment.
But a large amount of reinforced concrete structure and component, while there is bond-slip effect along reinforcing bar direction,
It is also acted on by lateral load, such as at beam end support, the dead weight of the superstructure of crossbeam can be perpendicular to the side of crossbeam reinforcing bar
Power is acted upwards, that is, laterally generates load.Lateral load will generate complexity in reinforcing bar and concrete binding region
Stress field makes a significant impact the adhesive property of armored concrete.And mostly there are no consider lateral lotus for current test method
The influence of load, there is some difference or experimental rig is more complicated with true load situation, and operation has certain difficulty.
Invention content
The object of the present invention is to provide a kind of armored concrete pull device and method, to solve reinforcing bar and concrete
Adhesive property test with truth there are problems that certain difference this, make result of the test closer with engineering practice.
To achieve the above object, the present invention provides following schemes：
The present invention provides a kind of armored concrete pull device, including vertical loading frame and lateral loading frame,
The vertical loading frame includes top plate, bottom plate and vertical pull rod, is provided on the top plate for being pressed from both sides on cupping machine
The grips component that head is clamped and connected, the bottom plate are set to below the top plate, and the vertical pull rod is vertically arranged with more
Root, and the top and bottom of each vertical pull rod are connect respectively with the top plate and the bottom plate, are set in the middle part of the bottom plate
The reinforced hole that the reinforcing bar that being equipped with can make armored concrete extract test specimen passes through；The transverse direction loading frame includes load plate, branch
Side plate, the anti-bar of lateral pull, pressure sensor and lateral loading element are supportted, at least two supports are fixedly installed on the bottom plate
Element, there are two the support side plate settings and is located at the both ends of the bottom plate respectively, and there are two the load plate settings, described
The anti-bar of lateral pull is at least provided with two and is mutually parallel, and each anti-bar of lateral pull passes through at least one support member
The both ends of part and each anti-bar of the lateral pull are connected in a support side plate, and described pressure sensor one end is used
It is contacted in a support side plate, the other end with a load plate for contacting, described transverse direction loading element one end
For being contacted with support side plate another described, the other end is used to contacted with load plate another described with to being positioned over two institutes
It states the armored concrete between load plate and extracts test specimen application lateral load.
Preferably, the grips component includes flexural pivot and connection bolt, and institute can be made by being provided in the middle part of the top plate
The screw rod of connection bolt is stated by the way that and the intransitable bolt hole of bolt head, the screw rod of the connection bolt is from below the top plate
It is connect across the bolt hole with the ball seat lower thread of the flexural pivot, the ball pin upper end of the flexural pivot is used for and cupping machine
Upper grip is clamped and connected.
Preferably, the vertical pull rod is provided with four, and the top plate is rectangular-shaped top plate, and the top plate is in four corners
The pull-up rod aperture that can pass through the vertical pull rod is both provided with, the bottom plate is respectively provided with corresponding to the every vertical pull rod
There are one that can make the lower tie rod hole that the vertical pull rod passes through, the upper end of each vertical pull rod passes through a upper connecting rod
Hole is simultaneously threaded with upper limit nut above the top plate, and the lower end of each vertical pull rod passes through a lower pull rod
Hole is simultaneously threaded with lower position nut below the bottom plate.
Preferably, the lateral loading element is hydraulic jack.
Preferably, there are four the support component settings, and the support component is guide rod, and each lateral pull is anti-
Bar is passed through described in two support components set along the floor length direction and each anti-bar both ends of lateral pull
Support side plate connects.
Preferably, the anti-bar of the lateral pull is provided with four, and the upper and lower ends of each support component offer respectively
One can make the pilot hole that the anti-bar of the lateral pull passes through.
Preferably, each support side plate is rectangular support side plate, and the four corners of each support side plate are opened
Equipped with the layback rod aperture that can pass through the anti-bar of the lateral pull, the both ends of each anti-bar of lateral pull both pass through an institute
It states layback rod aperture and is threadedly coupled there are one side stop nut.
Preferably, it is plane that the load plate, which is used for the surface that armored concrete extraction test specimen contacts,.
Preferably, the load plate is used to that the surface that armored concrete extraction test specimen contacts to be provided with raised filler strip.
The present invention also provides a kind of test methods using armored concrete pull device as described above：
Step 1：The upper grip of the grips component and cupping machine is clamped and connected；
Step 2：The reinforcing bar loading end of the reinforcing bar of armored concrete extraction test specimen being passed down through on the bottom plate
Hole；
Step 3：Two load plates is made to be bonded respectively and are contacted with two opposite appearances of armored concrete extraction test specimen
On face；
Step 4：It brings pressure to bear in a load plate to pull out armored concrete by the lateral loading element
Go out test specimen to apply lateral load and reach predetermined payload values, wherein passing through loading element lateral described in the determination of pressure sensor
The size of pressure applied；
Step 5：The lower collet of cupping machine is made to clamp the reinforcing bar that armored concrete extracts test specimen, starts tension test
Machine applies tensile load, records the Relative sliding number between the reinforcing bar and concrete of tensile load and armored concrete extraction test specimen
According to.
The present invention achieves following technique effect relative to the prior art：
Armored concrete pull device and method provided by the invention can extract test specimen simultaneously to armored concrete
Apply tensile load and lateral load, closer to truth, for the lower armored concrete pull of research bidirectional load effect
Effective experimental rig and test method are provided, is obtained by armored concrete pull device to test provided by the invention
Reinforcing bar and concrete adhesive property it is more authentic and valid, have better researching value.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the front view of armored concrete pull device provided by the invention；
Fig. 2 is the front view of the vertical frame of armored concrete pull device provided by the invention；
Fig. 3 is the left view of the vertical frame of armored concrete pull device provided by the invention；
Fig. 4 is the front view of the transverse frame of armored concrete pull device provided by the invention；
Fig. 5 is the front view of the top plate of armored concrete pull device provided by the invention；
Fig. 6 is the vertical view of the top plate of armored concrete pull device provided by the invention；
Fig. 7 is the main view after the bottom plate of armored concrete pull device provided by the invention is connected with support component
Figure；
Fig. 8 is the vertical view after the bottom plate of armored concrete pull device provided by the invention is connected with support component
Figure；
Fig. 9 is the left view after the bottom plate of armored concrete pull device provided by the invention is connected with support component
Figure；
Figure 10 is the structure diagram of the support side plate of armored concrete pull device provided by the invention；
Figure 11 is the structure diagram of the load plate of the armored concrete pull device in embodiment one；
Figure 12 is the structure diagram of the load plate of the armored concrete pull device in embodiment two；
Figure 13 is the extraction under the lateral Compression effect of armored concrete pull device application in embodiment one
Armored concrete pull device in experimental result, embodiment two applies laterally is tested by the extraction split under drawing load action
As a result the comparison diagram of the pull result under and being acted on without lateral load.
In figure：The vertical loading frames of 1-；11- grips components；111- flexural pivots；112- connection bolts；12- top plates；
121- bolts hole；122- pulls up rod aperture；The vertical pull rods of 13-；14- bottom plates；141- reinforced holes；Tie rod hole under 142-；143- is supported
Element；1431- pilot holes；2- transverse direction loading frames；21- support side plates；211- layback rod aperture；22- load plates；221- raised pads
Item；23- pressure sensors；24- transverse direction loading elements；The anti-bar of 25- lateral pulls；3- cupping machine upper grips；4- reinforcing bars mix
Solidifying soil extracts test specimen；41- reinforcing bars；Collet under 5- cupping machines.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of armored concrete pull device and method, to solve reinforcing bar and concrete
Adhesive property test with truth there are problems that certain difference this, make result of the test closer with engineering practice.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
Embodiment one
The present embodiment provides a kind of armored concrete pull device, as shown in figures 1-4, including vertical loading frame 1
With lateral loading frame 2, vertical loading frame 1 includes top plate 12, bottom plate 14 and vertical pull rod 13, is provided with and is used on top plate 12
The grips component 11 being clamped and connected with cupping machine upper grip 3, bottom plate 14 are set to 12 lower section of top plate, vertical pull rod 13
More are vertically arranged with, and the top and bottom of each vertical pull rod 13 are connect respectively with top plate 12 and bottom plate 14, in bottom plate 14
Portion be provided with can make armored concrete extract test specimen 4 reinforcing bar 41 by reinforced hole 141；Lateral loading frame 2 includes adding
The anti-bar 25 of support plate 22, support side plate 21, lateral pull, pressure sensor 23 and lateral loading element 24, on bottom plate 14 fixation set
At least two support components 143 are equipped with, there are two the settings of support side plate 21 and is located at the both ends of bottom plate 14 respectively, and load plate 22 is set
There are two putting, the anti-bar 25 of lateral pull is at least provided with two and is mutually parallel, and each anti-bar 25 of lateral pull passes through at least one
The both ends of support component 143 and the anti-bar 25 of each lateral pull are connected in a support side plate 21, pressure sensor 23 1
End with a support side plate 21 for contacting, and the other end for being contacted with a load plate 22, use by lateral 24 one end of loading element
It is contacted in another support side plate 21, the other end is used to contact with to being positioned over two load plates 22 with another load plate 22
Between armored concrete extract test specimen 4 apply lateral load.Top plate 12, bottom plate 14,21 and of support side plate in the present embodiment
Load plate 22 is steel plate.
The test method of armored concrete pull device,
Step 1：Grips component 11 and the upper grip 3 of cupping machine are clamped and connected；
Step 2：The reinforced hole loading end of the reinforcing bar 41 of armored concrete extraction test specimen 4 being passed down through on bottom plate 14
141；
Step 3：Two load plates 22 is made to be bonded respectively and are contacted with two opposite appearances of armored concrete extraction test specimen 4
On face；
Step 4：It brings pressure to bear in a load plate 22 to extract test specimen to armored concrete by lateral loading element
4 application lateral loads simultaneously reach predetermined payload values, wherein measuring lateral loading element 24 by pressure sensor 23 applies pressure
The size of power；
Step 5：The lower collet 5 of cupping machine is made to clamp the reinforcing bar 41 that armored concrete extracts test specimen 4, starts and stretches
Testing machine applies tensile load, records the phase between the reinforcing bar 41 and concrete of tensile load and armored concrete extraction test specimen 4
To shuffle data store.
Armored concrete pull device provided in this embodiment can extract test specimen 4 to armored concrete and apply simultaneously
Add tensile load and lateral load, closer to truth, carried for the lower armored concrete pull of research bidirectional load effect
Effective experimental rig and test method are supplied, the armored concrete pull device to test provided through this embodiment obtains
Reinforcing bar 41 and the adhesive property of concrete it is more authentic and valid, have better researching value.
Armored concrete pull device provided in this embodiment, as shown in figure 11, load plate 22 are used to mix with reinforcing bar
The surface that solidifying soil extraction test specimen 4 contacts is plane, can be carried out on the direction axially vertical with reinforcing bar 41 and apply laterally compression
The armored concrete pull of load.
Armored concrete pull device provided in this embodiment, as shown in Fig. 5~6, grips component 11 includes
Flexural pivot 111 and connection bolt 112, the middle part of top plate 12 be provided with can prevent the screw rod of connection bolt 112 by and bolt head from
By bolt hole 121, the screw rod for connecting bolt 112 passes through the ball seat lower end of bolt hole 121 and flexural pivot 111 from the lower section of top plate 12
It is threadedly coupled, the ball pin upper end of flexural pivot 111 is used to be clamped and connected with cupping machine upper grip 3.Cupping machine upper grip 3 with
Armored concrete pull device provided in this embodiment is connected by flexural pivot 111, when armored concrete pull device
During run-off the straight, it can realize adjustment armored concrete pull device immediately, keep armored concrete pull device
It is always axial tension state, bias will not occurs, ensure that test accuracy.
Armored concrete pull device provided in this embodiment, as shown in figs. 7-9, vertical pull rod 13 are provided with four
Root, top plate 12 be rectangular-shaped top plate, and top plate 12 four corners be both provided with can make vertical pull rod 13 by pull-up rod aperture
122, bottom plate 14 correspond to every vertical pull rod 13 be respectively provided with there are one can make vertical pull rod 13 by lower tie rod hole 142,
The upper end of each vertical pull rod 13 passes through a pull-up rod aperture 122 and upper limit nut, the upper limit is threaded with above top plate 12
Position nut can not can limit the upper end of vertical pull rod 13 by pulling up rod aperture 122；The lower end of each vertical pull rod 13
Lower position nut is threaded with across a lower tie rod hole 142 and below bottom plate 14, lower position nut can not be under
Tie rod hole 142 can limit the lower end of vertical pull rod 13.By adjusting upper limit nut and lower position nut vertical
Position on pull rod 13 can adjust the distance between top plate 12 and bottom plate 14, to adapt to the extraction of the armored concrete of different height
Test specimen expands the application range of armored concrete pull device provided in this embodiment.
Armored concrete pull device provided in this embodiment, lateral loading element 24 are hydraulic jack.
Armored concrete pull device provided in this embodiment, there are four the settings of support component 143, and support component
143 be guide rod, is used to support the anti-bar 25 of each lateral pull, and each anti-bar 25 of lateral pull is passed through to be set along 14 length direction of bottom plate
The support side plate 21 at two support components 143,25 both ends of bar anti-with each lateral pull connect.
The anti-bar 25 of lateral pull is provided with four, and the upper and lower ends of each support component 143 open up that there are one can make respectively
The anti-bar 25 of lateral pull by pilot hole 1431.
As shown in Figure 10, each support side plate 21 is rectangular support side plate, and the four corners of each support side plate 21 are opened
Equipped with can make the anti-bar 25 of lateral pull by layback rod aperture 211, the both ends of each anti-bar 25 of lateral pull both pass through a side
Tie rod hole 211 is simultaneously threadedly coupled there are one side stop nut.Side stop nut can not be by layback rod aperture 211, can be to horizontal stroke
It is limited to the both ends of the anti-bar 25 of pulling force.It can be adjusted by adjusting position of the side stop nut on the anti-bar 25 of lateral pull
The distance between two support side plates 21 extract test specimen 4 to adapt to the armored concrete of different-thickness, expand the present embodiment provides
Armored concrete pull device application range.
Embodiment two
The present embodiment is to one further improved embodiment of embodiment, includes the full content of embodiment one, i.e., originally
The armored concrete pull device that embodiment provides includes whole knots of one armored concrete pull device of embodiment
Structure feature, thes improvement is that：
Armored concrete pull device provided in this embodiment, as shown in figure 12, load plate 22 are used to mix with reinforcing bar
Solidifying soil extracts the surface that test specimen 4 contacts and is provided with raised filler strip 221, and the length direction of raised filler strip 221 is parallel to reinforcing bar 41
It is axial.
It sets using the above structure, can be carried out at and draw load with applying laterally to split on the axial parallel direction of reinforcing bar 41
Armored concrete pull.
Armored concrete pull device and method provided by the invention can select different according to different operating modes
Loading element applies lateral load, provides effective experimental rig and method for armored concrete pull, ties experiment
Fruit is closer with engineering practice.It is the armored concrete pull device application transverse direction in embodiment one as shown in figure 13
Extraction experimental result under Compression effect, the armored concrete pull device in embodiment two, which apply, is laterally split drawing
Extraction experimental result under load action and the comparison diagram without the pull result under lateral load effect.
Due to applying the cementation between lateral Compression effect meeting reinforcing steel bar and concrete, so as to which bond-slip is bent
Higher when line is acted on compared to no lateral load；And it laterally splits and draws load action that can then weaken the bonding work between reinforcing bar and concrete
With so that bond-slip curve is lower when being acted on compared to no lateral load.Therefore, the application transverse direction Compression that Figure 13 is provided
Effect laterally splits and load action and the bond-slip curve without test specimen under lateral load three kinds of operating modes of effect is drawn to be able to demonstrate that this hair
The armored concrete pull device and method of bright offer meets theory analysis；Three kinds of experimental results that Figure 13 is provided are bright
Aobvious there is some difference, and therefore, armored concrete pull device provided by the invention is to the reinforcing bar under research truth
It is very necessary with Bond Performance Between Concrete test.
It should be noted that lateral loading element in armored concrete pull device provided by the invention and unlimited
In hydraulic jack, apply lateral load as long as can realize and extract test specimen to armored concrete.Vertical drawing is not limited yet
The setting number of bar, as long as the setting number of vertical pull rod can enable the reinforcing bar and concrete of armored concrete extraction test specimen
Effective sliding displacement occurs, vertical pull rod is provided with four or other even number roots in embodiment one, can ensure reinforcing bar
Stationarity of the concrete pull device during experiment.The setting of support component and lateral loading element is not limited yet
Number, as long as can keep lateral loading element that can stablize applies lateral load in armored concrete extraction test specimen.
Specific case is applied in the present invention to be expounded the principle of the present invention and embodiment, above example
Illustrate to be merely used to help understand method and its core concept of the invention；Meanwhile for those of ordinary skill in the art, according to
According to the thought of the present invention, in specific embodiments and applications there will be changes.In conclusion the content of the present specification
It should not be construed as limiting the invention.
Claims (10)
1. a kind of armored concrete pull device, it is characterised in that：Including vertical loading frame and lateral loading frame, institute
State vertical loading frame and include top plate, bottom plate and vertical pull rod, be provided on the top plate for cupping machine upper grip
The grips component being clamped and connected, the bottom plate are set to below the top plate, and the vertical pull rod is vertically arranged with more,
And the top and bottom of each vertical pull rod are connect respectively with the top plate and the bottom plate, are provided in the middle part of the bottom plate
Armored concrete can be made to extract the reinforced hole that the reinforcing bar of test specimen passes through；The transverse direction loading frame includes load plate, support-side
The anti-bar of plate, lateral pull, pressure sensor and lateral loading element are fixedly installed at least two supports member on the bottom plate
Part, there are two the support side plate settings and is located at the both ends of the bottom plate respectively, and there are two the load plate settings, the horizontal stroke
It at least provided with two and is mutually parallel to the anti-bar of pulling force, each anti-bar of lateral pull passes through at least one support component
And the both ends of each anti-bar of the lateral pull are connected in a support side plate, described pressure sensor one end is used for
It is contacted with a support side plate, the other end for being contacted with a load plate, use by described transverse direction loading element one end
It is contacted in support side plate another described, the other end is used to contact with to being positioned over described in two with load plate another described
Armored concrete between load plate extracts test specimen and applies lateral load.
2. armored concrete pull device according to claim 1, it is characterised in that：The grips component packet
Include flexural pivot and connection bolt, be provided in the middle part of the top plate can prevent the screw rod of the connection bolt by and bolt head from leading to
The bolt hole crossed, the screw rod of the connection bolt pass through the ball seat lower end of the bolt hole and the flexural pivot from below the top plate
It is threadedly coupled, the ball pin upper end of the flexural pivot is used to be clamped and connected with cupping machine upper grip.
3. armored concrete pull device according to claim 1, it is characterised in that：The vertical pull rod is provided with
Four, the top plate is rectangular-shaped top plate, and the top plate is both provided in four corners can make what the vertical pull rod passed through
Pull up rod aperture, the bottom plate correspond to the every vertical pull rod be respectively provided with there are one can make under the vertical pull rod passes through
Tie rod hole, the upper end of each vertical pull rod pass through a pull-up rod aperture and are threaded with the upper limit above the top plate
Position nut, the lower end of each vertical pull rod pass through a lower tie rod hole and are threaded with lower limit below the bottom plate
Position nut.
4. armored concrete pull device according to claim 1, it is characterised in that：It is described transverse direction loading element be
Hydraulic jack.
5. armored concrete pull device according to claim 1, it is characterised in that：The support component is provided with
Four, and the support component is guide rod, each anti-bar of lateral pull passes through two set along the floor length direction
A support component is connect with the support side plate at each anti-bar both ends of lateral pull.
6. armored concrete pull device according to claim 5, it is characterised in that：The anti-bar of lateral pull is set
It is equipped with four, the upper and lower ends of each support component open up that there are one can make what the anti-bar of the lateral pull passed through to lead respectively
Xiang Kong.
7. armored concrete pull device according to claim 6, it is characterised in that：Each support side plate is
Rectangular support side plate, and the four corners of each support side plate offer the side that can pass through the anti-bar of the lateral pull
Tie rod hole, the both ends of each anti-bar of lateral pull both pass through lateral spacing position spiral shell there are one a layback rod aperture and threaded connections
It is female.
8. armored concrete pull device according to claim 1, it is characterised in that：The load plate is used for and steel
The surface that reinforced concrete extracts test specimen contact is plane.
9. armored concrete pull device according to claim 1, it is characterised in that：The load plate is used for and steel
The surface that reinforced concrete extracts test specimen contact is provided with raised filler strip.
10. a kind of test method of armored concrete pull device using described in any one of claim 1~9,
It is characterized in that：
Step 1：The upper grip of the grips component and cupping machine is clamped and connected；
Step 2：The reinforced hole loading end of the reinforcing bar of armored concrete extraction test specimen being passed down through on the bottom plate；
Step 3：Two load plates is made to be bonded respectively and are contacted with two opposite outer surfaces of armored concrete extraction test specimen
On；
Step 4：It is brought pressure to bear in a load plate by the lateral loading element and is tried with being extracted to armored concrete
Part applies lateral load and reaches predetermined payload values, wherein being applied by loading element lateral described in the determination of pressure sensor
Stressed size；
Step 5：The lower collet of cupping machine is made to clamp the reinforcing bar that armored concrete extracts test specimen, starts cupping machine and applies
Add tensile load, record the Relative sliding data between the reinforcing bar and concrete of tensile load and armored concrete extraction test specimen.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810155272.7A CN108169124A (en) | 2018-02-23 | 2018-02-23 | Armored concrete pull device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810155272.7A CN108169124A (en) | 2018-02-23 | 2018-02-23 | Armored concrete pull device and method |
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| CN108169124A true CN108169124A (en) | 2018-06-15 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760510A (en) * | 2018-08-24 | 2018-11-06 | 郑州大学 | A kind of concrete biaxial strength meter and measurement method |
| CN108896422A (en) * | 2018-09-13 | 2018-11-27 | 郑州大学 | Muscle material and Bond Performance Between Concrete experimental rig and method under a kind of cyclic reverse loading |
| CN111239041A (en) * | 2020-02-03 | 2020-06-05 | 天津大学 | Steel wire pulling-out test device under high temperature |
| CN111948131A (en) * | 2020-07-31 | 2020-11-17 | 徐州工程学院 | Test device and test method for testing reinforced concrete bonding strength |
| CN115015106A (en) * | 2022-06-06 | 2022-09-06 | 吉林大学 | Reinforced concrete pulling test holding force support and test method |
| CN115683857A (en) * | 2022-11-01 | 2023-02-03 | 燕山大学 | Clamp for measuring bonding strength of sprayed concrete and surrounding rock and measuring method |
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| CN108896422A (en) * | 2018-09-13 | 2018-11-27 | 郑州大学 | Muscle material and Bond Performance Between Concrete experimental rig and method under a kind of cyclic reverse loading |
| CN108896422B (en) * | 2018-09-13 | 2024-03-19 | 郑州大学 | Device and method for testing bonding performance of reinforcement and concrete under repeated load |
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| CN111948131A (en) * | 2020-07-31 | 2020-11-17 | 徐州工程学院 | Test device and test method for testing reinforced concrete bonding strength |
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| CN115015106A (en) * | 2022-06-06 | 2022-09-06 | 吉林大学 | Reinforced concrete pulling test holding force support and test method |
| CN115015106B (en) * | 2022-06-06 | 2023-04-07 | 吉林大学 | Reinforced concrete pulling test holding force support and test method |
| CN115683857A (en) * | 2022-11-01 | 2023-02-03 | 燕山大学 | Clamp for measuring bonding strength of sprayed concrete and surrounding rock and measuring method |
| CN115683857B (en) * | 2022-11-01 | 2023-09-05 | 燕山大学 | Clamp for measuring bonding strength of sprayed concrete and surrounding rock and measuring method |
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