CN208026601U - Armored concrete pull device - Google Patents
Armored concrete pull device Download PDFInfo
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- CN208026601U CN208026601U CN201820264001.0U CN201820264001U CN208026601U CN 208026601 U CN208026601 U CN 208026601U CN 201820264001 U CN201820264001 U CN 201820264001U CN 208026601 U CN208026601 U CN 208026601U
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Abstract
The utility model discloses a kind of armored concrete pull devices, including vertical loading frame and lateral loading frame, vertical loading frame includes top plate and bottom plate and vertical pull rod, grips component is set on top plate, bottom plate is set to below top plate, the upper and lower side of each vertical pull rod is connect with top plate and bottom plate respectively, 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 fixedly installed 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.The armored concrete pull device keeps test result closer with engineering practice.
Description
Technical field
The utility model is related to Bond Performance Between Concrete technical field of measurement and test, more particularly under a kind of complicated applied force state
The pull device of armored concrete adhesive property.
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
Go out the research method that experiment is more commonly used.
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.
Utility model content
The purpose of this utility model is to provide a kind of armored concrete pull device, viscous with concrete to solve reinforcing bar
Knot performance test has a certain difference this problem with truth, keeps test result closer with engineering practice.
To achieve the above object, the utility model provides following scheme：
The utility model provides a kind of armored concrete pull device, including vertical loading frame and lateral load frame
Frame, the vertical loading frame include top plate and bottom plate and vertical pull rod, be provided on the top plate for cupping machine
The grips component of grips connection, 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 with the top plate and the bottom plate respectively, the middle part of the bottom plate
The reinforced hole that the reinforcing bar that being provided with can make armored concrete extract test specimen passes through；It is described transverse direction loading frame include load plate,
The anti-bar of support side plate, lateral pull, pressure sensor and lateral loading element are fixedly installed at least two on the bottom plate
Element is supportted, there are two the support side plate settings and is located at the both ends of the bottom plate, and there are two the load plate settings, institute
The anti-bar of lateral pull is stated at least provided with two and is mutually parallel, each anti-bar of lateral pull passes through at least one support
The both ends of element and each anti-bar of the lateral pull are connected in a support side plate, described pressure sensor one end
For being contacted with a support side plate, the other end with a load plate for contacting, the transverse direction loading element one
End with support side plate described in another for contacting, and the other end with load plate described in another for contacting with to being positioned over two
Armored concrete between the load plate extracts test specimen and applies 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
State the screw rod of connection bolt by by the intransitable bolt hole of bolt head, the screw rod of the connection bolt is below the top plate
It is connect with the ball seat lower thread of the flexural pivot across the bolt hole, 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
It is both provided with the pull-up rod aperture that the vertical pull rod can be made to pass through, the bottom plate is respectively provided with corresponding to the every vertical pull rod
A upper connecting rod is passed through there are one the lower tie rod hole that the vertical pull rod passes through, the upper end of each vertical pull rod can be made
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 passes through described in two support components being arranged 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 the anti-bar of the lateral pull can be made to pass through, 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 to extract the surface that test specimen contacts with armored concrete,.
Preferably, the load plate, which is used to extract the surface that test specimen contacts with armored concrete, is provided with raised filler strip.
The utility model achieves following technique effect compared with the existing technology：
Armored concrete pull device provided by the utility model can extract test specimen to armored concrete and apply simultaneously
Add tensile load and lateral load, closer to truth, is carried for the lower armored concrete pull of research bidirectional load effect
Supplied effective experimental rig, the reinforcing bar obtained by armored concrete pull device to test provided by the utility model with
The adhesive property of concrete is more authentic and valid, has better researching value.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is the front view of armored concrete pull device provided by the utility model；
Fig. 2 is the front view of the vertical frame of armored concrete pull device provided by the utility model；
Fig. 3 is the left view of the vertical frame of armored concrete pull device provided by the utility model；
Fig. 4 is the front view of the transverse frame of armored concrete pull device provided by the utility model；
Fig. 5 is the front view of the top plate of armored concrete pull device provided by the utility model；
Fig. 6 is the vertical view of the top plate of armored concrete pull device provided by the utility model；
Fig. 7 is the master after the bottom plate of armored concrete pull device provided by the utility model is connected with support component
View；
Fig. 8 is bowing after the bottom plate of armored concrete pull device provided by the utility model is connected with support component
View；
Fig. 9 is the left side after the bottom plate of armored concrete pull device provided by the utility model is connected with support component
View；
Figure 10 is the structural schematic diagram of the support side plate of armored concrete pull device provided by the utility model；
Figure 11 is the structural schematic diagram of the load plate of the armored concrete pull device in embodiment one；
Figure 12 is the structural schematic 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, which applies, is laterally 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 are mixed
Solidifying soil extracts test specimen；41- reinforcing bars；Collet under 5- cupping machines.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
The purpose of this utility model is to provide a kind of armored concrete pull device, viscous with concrete to solve reinforcing bar
Knot performance test has a certain difference this problem with truth, keeps test result closer with engineering practice.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, below in conjunction with the accompanying drawings and have
Body embodiment is described in further detail the utility model.
Embodiment one
The present embodiment provides a kind of armored concrete pull devices, 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 with top plate 12 and bottom plate 14 respectively, 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, and load plate 22 is set
There are two setting, the anti-bar of lateral pull 25 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 of each lateral pull 25 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 24 one end of lateral loading element
It is contacted in another support side plate 21, the other end with another load plate 22 for contacting with to being positioned over two load plates 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 loading end that armored concrete is extracted to the reinforcing bar 41 of test specimen 4 is passed down through the reinforced hole on bottom plate 14
141；
Step 3：So that two load plates 22 is bonded respectively and is contacted with two opposite appearances of armored concrete extraction test specimen 4
On face；
Step 4：It is brought pressure to bear in a load plate 22 by lateral loading element to extract test specimen to armored concrete
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：So that the lower collet 5 of cupping machine is clamped the reinforcing bar 41 that armored concrete extracts test specimen 4, starts and stretch
Testing machine applies tensile load, records the phase between tensile load and the reinforcing bar 41 and concrete of 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, is 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 for mixed 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 by 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 with cupping machine upper grip 3 for being clamped and connected.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
When 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 is 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 is threaded with upper limit nut, the upper limit 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, and the armored concrete to adapt to different height is extracted
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 arranged along 14 length direction of bottom plate
Two support components 143 connect with the support side plate 21 at anti-25 both ends of bar of each lateral pull.
The anti-bar of lateral pull 25 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 of lateral pull 25 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 of lateral pull 25 by layback rod aperture 211, the both ends of the anti-bar of each lateral pull 25 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 cross
It is limited to the both ends of the anti-bar of pulling force 25.It can be adjusted by adjusting position of the side stop nut on the anti-bar of lateral pull 25
The distance between two support side plates 21, with adapt to different-thickness armored concrete extract test specimen 4, expand the present embodiment provides
Armored concrete pull device application range.
Embodiment two
The present embodiment is to one further improved embodiment of embodiment comprising 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 for mixed 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 is arranged using the above structure, can be carried out at laterally to split with application on the axial parallel direction of reinforcing bar 41 and draw load
Armored concrete pull.
Armored concrete pull device and method provided by the utility model can select not according to different operating modes
Same loading element applies lateral load, provides effective experimental rig and method for armored concrete pull, makes examination
It is closer with engineering practice to test result.It is the armored concrete pull device application in embodiment one as shown in figure 13
Lower the extractions experimental result of lateral Compression effect, the armored concrete pull device application transverse direction in embodiment two by
It splits and draws the 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, 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 reality
Meet theory analysis with the armored concrete pull device and method of novel offer；Three kinds of experiment knots that Figure 13 is provided
Fruit is clearly present different, and therefore, armored concrete pull device provided by the utility model is to studying truth
Under the test of reinforcing bar and Bond Performance Between Concrete be very necessary.
It should be noted that the lateral loading element in armored concrete pull device provided by the utility model is simultaneously
It is not limited to hydraulic jack, applies lateral load as long as can realize and extract test specimen to armored concrete.It does not limit perpendicular yet
To the setting number of pull rod, as long as the setting number of vertical pull rod can make the reinforcing bar and concrete of armored concrete extraction test specimen
Effective sliding displacement can occur, vertical pull rod is provided with four or other even number roots in embodiment one, can ensure
The stationarity of armored concrete pull device during the test.Setting for support component and lateral loading element is not limited yet
Number is set, 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 utility model to be expounded the principles of the present invention and embodiment, it is above
The explanation of embodiment is merely used to help understand the method and its core concept of the utility model；Meanwhile for the one of this field
As technical staff, according to the utility model thought, there will be changes in the specific implementation manner and application range.To sum up
Described, the content of the present specification should not be construed as a limitation of the present invention.
Claims (9)
1. a kind of armored concrete pull device, it is characterised in that：Including vertical loading frame and lateral loading frame, institute
It includes top plate and bottom plate and vertical pull rod to state vertical loading frame, 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 with the top plate and the bottom plate respectively, 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, and there are two the load plate settings, the cross
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 described in another, the other end with load plate described in another for contacting with to being positioned over described in two
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 by bolt head from leading to
The screw rod of the bolt hole crossed, the connection bolt passes 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 with cupping machine upper grip for being clamped and connected.
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 and so that the vertical pull rod is passed through
Pull up rod aperture, the bottom plate correspond to the every vertical pull rod be respectively provided with there are one the vertical pull rod can be made to pass through under
The upper end of tie rod hole, each vertical pull rod passes through a pull-up rod aperture and is threaded with the upper limit above the top plate
The lower end of position nut, each vertical pull rod passes through a lower tie rod hole and is 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 be arranged 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 the anti-bar of the lateral pull can be made to pass through
The both ends of tie rod hole, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820264001.0U CN208026601U (en) | 2018-02-23 | 2018-02-23 | Armored concrete pull device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820264001.0U CN208026601U (en) | 2018-02-23 | 2018-02-23 | Armored concrete pull device |
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| CN208026601U true CN208026601U (en) | 2018-10-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108169124A (en) * | 2018-02-23 | 2018-06-15 | 深圳市市政设计研究院有限公司 | Armored concrete pull device and method |
| CN110646343A (en) * | 2019-09-03 | 2020-01-03 | 山东大学 | Confining pressure adjustable anchor rod test piece uplift resistance test device and method |
-
2018
- 2018-02-23 CN CN201820264001.0U patent/CN208026601U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108169124A (en) * | 2018-02-23 | 2018-06-15 | 深圳市市政设计研究院有限公司 | Armored concrete pull device and method |
| CN110646343A (en) * | 2019-09-03 | 2020-01-03 | 山东大学 | Confining pressure adjustable anchor rod test piece uplift resistance test device and method |
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