CN107907417A - A kind of pull-out test device for being used in prefabricated components lift accessory - Google Patents
A kind of pull-out test device for being used in prefabricated components lift accessory Download PDFInfo
- Publication number
- CN107907417A CN107907417A CN201711266268.XA CN201711266268A CN107907417A CN 107907417 A CN107907417 A CN 107907417A CN 201711266268 A CN201711266268 A CN 201711266268A CN 107907417 A CN107907417 A CN 107907417A
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- China
- Prior art keywords
- box beam
- load bar
- pull
- test device
- out test
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000007586 pull-out test Methods 0.000 title claims abstract description 20
- 239000003351 stiffener Substances 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000004567 concrete Substances 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 206010058109 Hangnail Diseases 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- 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
- G01N3/02—Details
-
- 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
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention provides a kind of pull-out test device for being used in prefabricated components lift accessory, including load bar, drawing instrument, box beam, two I-beams and connector；Load bar is fixedly connected with both drawing instruments, and one end of load bar becomes large-sized protrusion, is formed and the matched connecting pin of connector；Through hole is equipped with the middle part of box beam, load bar passes through the through hole so that drawing instrument is supported in box beam；The bottom of box beam is welded with multiple ribbed stiffeners extended along width, and the distance between two ribbed stiffeners are slightly wider than the width of I-beam so that I-beam can be embedded between two ribbed stiffeners；Two I-beams are arranged on the both sides of box beam bottom to support box beam along box beam length direction；Connector includes two fixtures that can be separated and close up, and forms the upper fixed chamber to match with the connecting pin shape of the load bar when closing up among top and the lower fixed chamber to match with the connecting pin shape of lifting accessory is formed among lower part.
Description
Technical field
The present invention relates to construction quality inspection technology field, particularly relates to one kind and is used in prefabricated components lift to match somebody with somebody
The pull-out test device of part.
Background technology
Currently, the quality control to built-in fitting focuses on process control, and detection is examined accordingly relatively to prefabricated component and fitting
It is few；Both at home and abroad also without corresponding hoisting Design and inspection criterion.It is mostly design at present for more important, relatively large building
Personnel provide the minimum bearing capacity of lifting accessory, and the lifting bearing capacity that construction personnel indicates according to manufacturer, is multiplied by certain
Safety coefficient is chosen and lifts accessory accordingly, length or pre-buried depth for accessory, mostly rule of thumb.For example, majority is built
Build and do not choose suspension centre rule of thumb to the design conditions lifted, site operation personnel in the design phase, hang nail and suspension hook, this is right
Site operation is brought great potential safety hazard.During the lifting accessory progress quality verification not being directed at present in prefabricated components
Drawing experimental provision.
Therefore, there are demand for drawing experimental provision when quality verification is carried out to the lifting accessory in prefabricated components.
The content of the invention
The present invention be directed to the above problem, there is provided a kind of pull-out test device for being used in prefabricated components lift accessory, bag
Include：Load bar, drawing instrument, box beam, two I-beams and connector；
Wherein, load bar is fixedly connected with both drawing instruments, is thereby loaded with the drawing instrument, and one end size of load bar becomes
It is big prominent, formed and the matched connecting pin of connector；
Through hole is equipped with the middle part of box beam, load bar passes through the through hole so that drawing instrument is supported on box beam；Box beam
Bottom be welded with multiple ribbed stiffeners extended along width, the distance between two ribbed stiffeners are slightly wider than the width of I-beam
Degree so that I-beam can be embedded between two ribbed stiffeners；
Two I-beams are arranged on the both sides of box beam bottom along box beam length direction, are respectively embedded in two and put more energy into
To support box beam between rib；
Connector includes two fixtures, and two fixtures can be separated and closed up, and is formed when closing up among top and institute
State upper fixed chamber and formation and the connecting pin shape of lifting accessory among lower part that the connecting pin shape of load bar matches
The lower fixed chamber that shape matches.
An embodiment according to the present invention, formed with screw thread on the load bar outer circumferential surface, utilizes the screw thread and spiral shell
Mother fixes the drawing instrument and load bar.
An embodiment according to the present invention, described two fixtures are fixed when closing up using bolt.
An embodiment according to the present invention, the load bar the other end formed with hole, the hole is along load bar
Length direction extends to connecting pin.
An embodiment according to the present invention, the box beam are made of Steel material.
An embodiment according to the present invention, described two I-beams are made of Steel material.
An embodiment according to the present invention, the lifting accessory is cast-in fixing bolt.
An embodiment according to the present invention, the lifting accessory hang nail for round end.
An embodiment according to the present invention, the length of described two I-beams are more than the width of the box beam.
The present invention provides a kind of pull-out test device for being used in prefabricated components lift accessory, it can be right before lifting
Prefabricated component is tested, to determine whether the lifting accessory in prefabricated component is safe, eliminates safe hidden trouble；In addition, the two of the present invention
A I-beam is arranged on the both sides of box beam bottom along box beam length direction, can movably be embedded in two ribbed stiffeners
Between to support box beam, thus, it is possible to the lifting accessory suitable for different lengths of embedment, be suitable for different projection failure mechanics
Product.
Brief description of the drawings
Fig. 1 is the knot for being used in prefabricated components lift the pull-out test device of accessory according to an embodiment of the invention
Structure schematic diagram；
Fig. 2 is the structure diagram of each angle of box beam according to an embodiment of the invention；
Fig. 3 is the structure diagram of load bar according to an embodiment of the invention；
Fig. 4 is the structure diagram of fixture according to an embodiment of the invention.
Embodiment
The present invention is further detailed below in conjunction with the accompanying drawings.It will be understood by those skilled in the art that embodiment is intended to
Help technical staff and the present invention is expressly understood, be not intended to limit the present invention.
As shown in Figure 1, the present invention provides a kind of pull-out test device for being used in prefabricated components lift accessory, including：
Load bar 11, drawing instrument 12,13, two I-beams 14 of box beam and connector 15.
With reference to figure 1 and Fig. 3, load bar 11 is in rod-shaped, and its one end becomes large-sized protrusion, forms a connecting pin 112.The company
The shape for connecing end 112 is engaged with the shape of 12 corresponding connecting portion of connector, enables to hang to load by connector 12
Assembly parts 21 and prefabricated component 22.It will hereinafter give the account in greater detail.
Hole 111 is could be formed with the other end of the load bar 11, the hole 111 is along load bar length direction towards connection
End extension.That is, perforation among load bar, the reinforcing bar of certain size is may be inserted into when being tested, then on top in hole
Fixed amesdial, can be used to measurement pull-out test displacement data.
As shown in Figure 1, load bar 11 is fixedly connected with both drawing instruments 12, the drawing instrument is thereby loaded with.Using can be with
By forming screw thread (not shown) on load bar, corresponding screw thread is formed at the corresponding position of drawing instrument, then with nut 16
Drawing instrument 12 and both load bars 11 are mutually fixed.Such as anchor rod drawing instrument of drawing instrument 12 is well known to those skilled in the art,
With reference to the teachings of the present invention, those skilled in the art can easily realize the combination of drawing instrument 12 and load bar, herein not
It is described in detail.
With reference to figure 2, Fig. 2 is the structure diagram of each angle of box beam according to embodiments of the present invention, wherein Fig. 2's
(a) be box beam 13 width on sectional view, (b) is the sectional view on length direction, and (c) is the top view of box beam 13
Figure.
As shown in Fig. 2, being equipped with a through hole 132 among box beam 13, load bar 11 is thus, it is possible to through the through hole 132, make
Drawing instrument 12 is obtained to be supported on box beam 13.The bottom of box beam 13 is welded with multiple ribbed stiffeners extended along width
131, the distance between two ribbed stiffeners are slightly wider than the width of I-beam 14 so that I-beam 14 can be embedded in two ribbed stiffeners
Between.
With reference to figure 1, two I-beams are arranged on the both sides of box beam bottom along box beam length direction, are respectively embedded in
To support box beam between two ribbed stiffeners.That is, I-beam 14 and box beam 13 intersect each other along respective length direction.Work
The length of word beam 13 can be more than the width of box beam 13, so support safer.In addition, the box beam and I-beam
It can be made of Steel material.
Research shows that the Edge Distance that the lifting accessory in prefabricated components plays control action is related to length of embedment.Therefore,
When carrying out the pull-out test of quality verification to it, experimental rig should be pressed in outside its damage envelope, to reduce experimental rig
The pressure of concrete is influenced caused by experimental result.According to the difference of use environment, lifting accessory in prefabricated components
Length of embedment is different, and corresponding concrete destruction scope is different, if the control range of experimental rig can not be adjusted, needs to be equipped with
Various sizes of experimental rig is covered, to adapt to the lifting accessory of different lengths of embedment more.
As described above, the present invention can be realized corresponding to the lifting accessory in the prefabricated components for different lengths of embedment
I-beam, is fixed on the diverse location of box beam 14 by the difference of concrete destruction scope, it is ensured that it is broken that I-beam 14 is pressed in experiment
Outside bad scope.That is, ribbed stiffener 131 of the present invention can not only play the role of strengthening the intensity of box beam 13, Er Qieneng
Enough realize the packaged type connection and support of I-beam 14, thus the device of the invention can be suitable for different prefabricated component and not
With the lifting accessory of depth.
With reference to figure 1 and Fig. 4, connector 15 of the invention includes two fixtures 151, and two fixtures are for example, symmetrical,
It can separate and close up.Form what is matched with 112 shape of connecting pin of the load bar 11 among top when closing up
Upper fixed chamber 151a and the lower fixed chamber that the connecting pin shape of formation and lifting accessory 21 matches among lower part
151b.The section of T-shape is shown in figure, but it is clear that it will be understood by those skilled in the art that the shape can also be it
His proper shape, as long as fixed function can be played.For example, lifting accessory can be that pre-buried round end hangs nail, ability
Field technique personnel should be readily appreciated that this.
Certainly, lifting the connection fixation between accessory 21 and fixture 151 can also be realized by middle component, such as
It can be cast-in fixing bolt to lift accessory, and cast-in fixing bolt is connected by screw thread with cast-in fixing bolt connector, and then cast-in fixing bolt connects
Part is connected with fixture 151 again.Those skilled in the art should be readily appreciated that this.
When being worked, two fixtures of connector 15 separate, by the connecting pin 112 of load bar 11 and lifting accessory
21 connecting pin is respectively embedded into fixed chamber 151a and lower fixed chamber 151b, and then, described two fixtures are closed up
It is fixed, thus, it is possible to test whether the lifting accessory 21 of prefabricated component 22 (such as precast concrete) meets peace using drawing instrument
It is complete to require.Such as multiple (6 are shown in figure) bolt hole 151c can be formed on fixture 151, by bolt by two fixtures
Close up fixation.
The pull-out test device of the present invention, it can carry out prefabricated component the experiment before use, to determine in prefabricated component
Whether safe lift accessory, eliminate safe hidden trouble；In addition, two I-beams of the present invention are arranged on along box beam length direction
The both sides of box beam bottom, can movably be embedded between two ribbed stiffeners to support box beam, thus, it is possible to suitable for
The lifting accessory of different lengths of embedment, is suitable for different projection damage areas.
Specific embodiment used herein is set forth the principle of the present invention and embodiment, above example
Illustrate that being only intended to help understands the device of the invention and its core concept, meanwhile, for those of ordinary skill in the art, according to
According to the thought of the present invention, change is had in specific embodiments and applications or substitutes part, it is such to change or replace
For also within the scope of the invention.
Claims (9)
1. a kind of pull-out test device for being used in prefabricated components lift accessory, including：Load bar, drawing instrument, box beam, two
I-beam and connector；
Wherein, load bar is fixedly connected with both drawing instruments, and one end of load bar becomes large-sized protrusion, is consequently formed and connector
Matched connecting pin；
Through hole is equipped with the middle part of box beam, load bar passes through the through hole so that drawing instrument is supported on box beam；The bottom of box beam
Portion is welded with multiple ribbed stiffeners extended along width, and the distance between two ribbed stiffeners are slightly wider than the width of I-beam,
I-beam is embedded between two ribbed stiffeners；
Two I-beams are arranged on the both sides of box beam bottom along box beam length direction, be respectively embedded in two ribbed stiffeners it
Between to support box beam；
Connector includes two fixtures, and two fixtures can be separated and closed up, and formed among top when closing up and added with described
Carry upper fixed chamber and connecting pin shape phase of the formation with lifting accessory among lower part that the connecting pin shape of bar matches
Matched lower fixed chamber.
2. pull-out test device as claimed in claim 1, wherein utilizing the spiral shell formed with screw thread on the load bar outer circumferential surface
Line fixes the drawing instrument and load bar with nut.
3. pull-out test device as claimed in claim 1, wherein described two fixtures are fixed when closing up using bolt.
4. pull-out test device as claimed in claim 1, wherein, the load bar the other end formed with hole, the hole edge
Load bar length direction towards connecting pin to extend.
5. pull-out test device as claimed in claim 1, wherein the box beam is made of Steel material.
6. pull-out test device as claimed in claim 1, wherein described two I-beams are made of Steel material.
7. pull-out test device as claimed in claim 1, wherein the lifting accessory is cast-in fixing bolt.
8. pull-out test device as claimed in claim 1, wherein the lifting accessory hangs nail for round end.
9. pull-out test device as claimed in claim 1, wherein the length of described two I-beams is more than the box beam
Width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711266268.XA CN107907417A (en) | 2017-12-05 | 2017-12-05 | A kind of pull-out test device for being used in prefabricated components lift accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711266268.XA CN107907417A (en) | 2017-12-05 | 2017-12-05 | A kind of pull-out test device for being used in prefabricated components lift accessory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107907417A true CN107907417A (en) | 2018-04-13 |
Family
ID=61854343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711266268.XA Pending CN107907417A (en) | 2017-12-05 | 2017-12-05 | A kind of pull-out test device for being used in prefabricated components lift accessory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107907417A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663268A (en) * | 2018-08-30 | 2018-10-16 | 苏州中正工程检测有限公司 | A kind of prefabricated lifting component hole pull-out test device |
| CN110346124A (en) * | 2019-07-09 | 2019-10-18 | 张海良 | The anti-pulling capacity detection device of concrete prefabricated element suspension centre |
| CN110389074A (en) * | 2019-07-23 | 2019-10-29 | 南京工业大学 | A kind of anchoring piece scene test of bearing capacity device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663268A (en) * | 2018-08-30 | 2018-10-16 | 苏州中正工程检测有限公司 | A kind of prefabricated lifting component hole pull-out test device |
| CN108663268B (en) * | 2018-08-30 | 2023-09-19 | 苏州中正工程检测有限公司 | Assembled prefabricated component lifting hole drawing test device |
| CN110346124A (en) * | 2019-07-09 | 2019-10-18 | 张海良 | The anti-pulling capacity detection device of concrete prefabricated element suspension centre |
| CN110346124B (en) * | 2019-07-09 | 2021-03-19 | 张海良 | Anti-pulling bearing capacity detection device for concrete prefabricated part hoisting point |
| CN110389074A (en) * | 2019-07-23 | 2019-10-29 | 南京工业大学 | A kind of anchoring piece scene test of bearing capacity device |
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