CN109632527A - A kind of shear-deformable test device of pseudo-static experimental reinforced column - Google Patents
A kind of shear-deformable test device of pseudo-static experimental reinforced column Download PDFInfo
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- CN109632527A CN109632527A CN201811126076.3A CN201811126076A CN109632527A CN 109632527 A CN109632527 A CN 109632527A CN 201811126076 A CN201811126076 A CN 201811126076A CN 109632527 A CN109632527 A CN 109632527A
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- 238000012360 testing method Methods 0.000 title claims abstract description 59
- 238000006073 displacement reaction Methods 0.000 claims abstract description 92
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 55
- 239000010959 steel Substances 0.000 claims abstract description 55
- 239000004567 concrete Substances 0.000 claims abstract description 27
- 238000009434 installation Methods 0.000 claims abstract description 15
- 230000008878 coupling Effects 0.000 claims abstract description 11
- 238000010168 coupling process Methods 0.000 claims abstract description 11
- 238000005859 coupling reaction Methods 0.000 claims abstract description 11
- 239000000945 filler Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 238000010008 shearing Methods 0.000 abstract description 4
- 238000005452 bending Methods 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 241000037237 Peliosanthes gracilipes Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007493 shaping process 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
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing 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
- G01N2203/0025—Shearing
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- 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
A kind of shear-deformable test device of pseudo-static experimental reinforced column, screw rod is buried inside concrete column, screw both end is located at outside concrete column, and steel plate passes through the hole being arranged thereon and nut is fixed on screw rod, and steel plate both ends are set with the plate sleeve for installing displacement meter；The steel plate end positions screw in installation screw rod, it is fixed on the outside of screw rod by nut, oblique displacement meter screw sleeve is installed on the inside of the screw rod of concrete column side, oblique displacement meter screw sleeve lower part connected ball hingle shaft device, flexural pivot shaft coupling connects oblique displacement meter junction steel plate, oblique displacement meter, the pull ring for the displacement meter stay screw rod sleeve installed on oblique displacement meter bracing wire connection concrete column other side screw rod are installed on oblique displacement meter junction steel plate.The present invention is shear-deformable using built-in type device to test, ensure that the test of shearing, bending aliquot deformation, alleviates the test error due to caused by test specimen destruction, vibration etc. during test, improve measuring accuracy, structure is simple.
Description
Technical field
The present invention relates to engineering structure earthquake research field, in particular to reinforced column deformation component is such as bent, cuts
The measuring technology of shear deformation component.
Background technique
The shearing, bending of reinforced column and bonding-sliding deformation component are component overall deformations in pseudo-static experimental
One of main characteristic index of performance.Wherein, accounting of the component of shear deformation in overall deformation is to column failure mode and antidetonation
The influence of performance is especially prominent.Accurately to test component of shear deformation of the reinforced concrete member under seismic loading,
Component of shear deformation test device is come into being.There are mainly of two types for component of shear deformation test device at this stage, Yi Zhong
Pre-buried installation part in column installs test device after concrete formation on the basis of built-in fitting, and this type device is steady in test
Qualitative good, test data is influenced smaller by the external world；Another is not set built-in fitting, directly installs and surveys in shaping test piece outer surface
Trial assembly is set, using the fixed test device of circumferential cuff effect of contraction, since the device is fixed on concrete surface, in test process
Cracking, deformation or peeling etc. occur for middle concrete, are easy to influence test result.
Existing shear test apparatus is to be set for a certain specific test specimen due to ununified design standard
Meter production, not only applicability is restricted and (is such as influenced by displacement sensor type, column section type), while such device is logical
Normal complex installation process, enforcement difficulty is larger, and more important point is such test device often since design defect can exist
The problems such as rigidity is insufficient, stability is poor, test data error is larger.
Summary of the invention
In order to overcome the above problem existing for existing existing shear test apparatus, the present invention provides a kind of examinations of Quintic system
It tests with the shear-deformable test device of reinforced column.
Present invention technical solution used for the above purpose is: a kind of pseudo-static experimental is cut with reinforced column
Shear deformation test device buries screw rod 4 inside concrete column 1, and 4 both ends of screw rod are located at outside concrete column 1, and steel plate 2 passes through it
The hole of upper setting and nut 8 are fixed on screw rod 4, and 2 both ends of steel plate are set with the plate sleeve 5,12 for installing displacement meter；It is described
2 end positions of steel plate screw in installation screw rod 3, are fixed on the outside of screw rod 3 by nut 8, are pacified on the inside of the screw rod 3 of concrete column side
Oblique displacement meter screw sleeve 6, oblique 6 lower part connected ball hingle shaft device 13 of displacement meter screw sleeve are filled, flexural pivot shaft coupling 13 connects
Oblique displacement meter junction steel plate 16 is connect, oblique displacement meter 10 is installed on oblique displacement meter junction steel plate 16, oblique displacement meter 10 is drawn
The pull ring 20 for the displacement meter stay screw rod sleeve 11 installed on line connection concrete column other side screw rod 3.
The plate sleeve 5 is displacement meter bracing wire sleeve, and 5 lower part of plate sleeve is equipped with junction steel plate 19, on plate sleeve 5
Pull ring 20 is installed in portion and side；The plate sleeve 12 is anyhow to displacement meter sleeve, 12 lower part of plate sleeve and side difference
Equipped with the vertical connecting plate 18 and cross connecting plate 17 by installing based on vertical displacement 7 and lateral displacement meter 9, plate sleeve 12
Top is equipped with pull ring 20.
The concrete column 1, which is internally located at embedded screw rod 4, is equipped with sleeve, and screw rod 4 is located in sleeve 15, screw rod 4 and set
It is fixed between cylinder 15 by filler.
Spring shim 14 is equipped on the screw rod 3 between steel plate 2 and nut 8；The steel plate 2 and oblique displacement meter spiral shell
Spring shim 14 is equipped between rod sleeve 6, displacement meter stay screw rod sleeve 11.
The shear-deformable test device of pseudo-static experimental reinforced column of the invention, using the whole branch of built-in type rigidity
Rack device test is shear-deformable, not only ensure that the test of shearing, bending aliquot deformation, but also effectively alleviates due to examination
Test error caused by test specimen destruction, vibration etc. during testing improves measuring accuracy, while the device greatly simplifies installation and determines
Position difficulty, assembly and disassembly of being more convenient for；Entire test device structure is simpler, compact, and has reached accurate test shearing and become
The purpose of shape aliquot deformation.
Detailed description of the invention
Fig. 1 is the shear-deformable test device structure chart of pseudo-static experimental reinforced column (hyperbolic cylinder) of the present invention.
Fig. 2 is the shear-deformable test device structure chart of pseudo-static experimental reinforced column (single column).
Fig. 3 is the main view of Fig. 1.
Fig. 4 is the side view of Fig. 1.
Fig. 5 is the top view of Fig. 1.
Fig. 6 is the top view of Fig. 2.
Fig. 7 is oblique displacement meter connection structure diagram.
Fig. 8 is the cross-sectional view of Fig. 1.
Fig. 9 is the cross-sectional view of Fig. 1.
Figure 10 is oblique displacement meter screw sleeve structure chart.
Figure 11 is spherical hinge universal coupling structure chart.
Figure 12 is the steel plate structure figure for connecting oblique displacement meter.
Figure 13 is displacement meter stay screw rod tube-in-tube structure figure.
Figure 14 is displacement meter bracing wire tube-in-tube structure figure.
Figure 15 is anyhow to displacement meter tube-in-tube structure figure.
In figure: 1- concrete column；2- steel plate；3- screw rod；4- screw rod；5- plate sleeve；The oblique displacement meter screw sleeve of 6-；
7- vertical displacement meter；8- nut；9- lateral displacement meter；The oblique displacement meter of 10-；11- displacement meter stay screw rod sleeve；12- steel plate
Sleeve；13- spherical hinge universal coupling；14- spring shim；15- sleeve；The oblique displacement meter junction steel plate of 16-；17- lateral connection
Plate；The vertical connecting plate of 18-；19, connecting plate, 20, pull ring.
Specific embodiment
The shear-deformable test device structure of pseudo-static experimental reinforced column of the invention as shown in figures 1-15, mainly
Including pre-buried screw rod 4, sleeve 15 and packing material (such as pitch, epoxy resin or modified adhesive band), steel plate 2, spring pad
Piece 14 and nut 8, the main components compositions such as plate sleeve 5,12, flexural pivot shaft coupling 13 and screw sleeve 6,11.Wherein pre-buried silk
Bar 4, sleeve 15 and packing material (such as pitch, epoxy resin or modified adhesive band) group are integral, and a part is embedded into examination
Part, a part are reserved in outside test specimen, and screw rod 4 and the steel plate 2 for reserving outside are fixed at the desired position by nut 8, steel plate
By the connection of plate sleeve 5,12 vertical 7 and lateral displacement meter 9, vertical deformation and horizontal distortion are tested, plate sleeve 5,12 can
It is fastened at an arbitrary position by bolt and nut, screw rod 3 penetrates 2 two sides of steel plate, and outside is fixed by nut 8, and inside passes through
Screw sleeve 6, flexural pivot shaft coupling 13, the combination of oblique displacement meter junction steel plate 16 connect oblique displacement meter 10 to test oblique change
Shape.
Specific structure is as follows: screw rod 4 is buried inside concrete column 1, concrete column 1 is internally located at embedded screw rod 4 and is equipped with
Sleeve, screw rod 4 are located in sleeve 15, are fixed between screw rod 4 and sleeve 15 by filler.4 both ends of screw rod are located at outside concrete column 1
Portion, steel plate 2 passes through the hole being arranged thereon and nut 8 is fixed on screw rod 4, and 2 both ends of steel plate are set with the steel for installing displacement meter
Sleeve-board cylinder 5,12；2 end positions of steel plate screw in installation screw rod 3, concrete column side fixed by nut 8 on the outside of screw rod 3
Screw rod 3 on the inside of oblique displacement meter screw sleeve 6, oblique 6 lower part connected ball hingle shaft device 13 of displacement meter screw sleeve, ball are installed
Hingle shaft device 13 connects oblique displacement meter junction steel plate 16, oblique displacement meter 10 is installed on oblique displacement meter junction steel plate 16, tiltedly
The pull ring 20 for the displacement meter stay screw rod sleeve 11 installed on 10 bracing wire of displacement meter connection concrete column other side screw rod 3.Steel
Sleeve-board cylinder 5 is displacement meter bracing wire sleeve, and 5 lower part of plate sleeve is equipped with junction steel plate 19, and 5 top of plate sleeve and side installation are drawn
Ring 20；The plate sleeve 12 is to be respectively provided with installation to displacement meter sleeve, 12 lower part of plate sleeve and side anyhow and erect
To the vertical connecting plate 18 and cross connecting plate 17 of displacement meter 7 and lateral displacement meter 9,12 top of plate sleeve is equipped with pull ring 20.
Spring shim 14 is equipped on screw rod 3 between steel plate 2 and nut 8；The steel plate 2 and oblique displacement meter screw sleeve 6, displacement
It counts and is equipped with spring shim 14 between stay screw rod sleeve 11.
Working principle and the course of work: one section of sleeve 15 of embedment in place when (1) making concrete column test specimen, screw rod
The materials such as pitch can be inserted between 4 and sleeve is bonded together the two effectively；(2) steel plate 2 is placed on screw rod 4, both sides
Pass through nut 8) position is fixed, steel plate two sides cover upper bush 5,12；(3) screw rod 3, head on the outside of screw rod are screwed in steel plate end positions
Spring shim 14 is first put on, then using the fixed position of nut 8, screw rod inside equally puts on spring shim 14 first, then solid
Fixed oblique displacement meter screw sleeve 6 or displacement meter stay screw rod sleeve 11, oblique 6 lower part once mounting ball of displacement meter screw sleeve
Hingle shaft device 13, oblique displacement meter junction steel plate 16 and oblique displacement meter 10, when installation, pay attention to oblique displacement meter screw sleeve 6
With the position of displacement meter stay screw rod sleeve 11；(4) lateral displacement meter 9 and vertical displacement meter 7 are mounted on plate sleeve 5,12
(connecting plate 19, cross connecting plate 17 and vertical connecting plate 18 of connection displacement meter are provided on plate sleeve 5,12, for this survey
Figure is set in trial assembly can select guy type displacement meter one end that can be fixed on corresponding junction steel plate by bolt and nut, displacement meter
Drawstring one end can be fixed on the pull ring 20 of relevant sleeve), according to the different type of displacement meter, can to plate sleeve 5,12,
Flexural pivot shaft coupling 13 and screw sleeve 6,11 improve, to adapt to the demand of different test devices；(5) oblique displacement meter 10 1
End is bolted on oblique displacement meter junction steel plate 16, and drawstring one end is fixed on the pull ring 20 of screw sleeve 11.For
The position of oblique displacement meter screw sleeve 6 and displacement meter stay screw rod sleeve 11 is adjusted to facilitate the installation of oblique displacement meter,
It screws in and places spring shim 14 before screw sleeve first on screw rod 3.
This programme is to become for square section pile to the shear component of rectangle, circle and other simple special-shaped columns
Shape test also has certain applicability；This programme is designed for reinforced column, to timber structure, steel construction or steel
Muscle, concrete combined structure etc., it may have certain applicability；The plate sleeve, flexural pivot shaft coupling, screw sleeve of this programme are set
The test connection set is such as to use other kinds of displacement for that can be designed using the fixed displacement meter form of screw rod
Meter, can improve connector according to the specific features of test device, be applicable in further types of deformation test device；This
Scheme does not give specific O. gracilipes, therefore can carry out corresponding size design according to specific test member, and versatility is more
By force.
The shear-deformable test device of pseudo-static experimental reinforced column of the application, flush type screw rod 4 and sleeve 15
Between by the filling materials such as pitch both make effectively bonding, and by sleeve decrease screw rod to the stress of core space concrete
It can influence；Steel plate is fixed on pre-buried screw rod by nut, and spring shim is added between steel plate and nut, that is, is conducive to adjustment steel plate
Angle, and can increase the stability of steel plate after connection；Steel plate and vertical and horizontal displacement meter (special guy type displacement meter is enumerated,
Other such as condenser types, piezoelectric type and contactless displacement meter equally may be implemented by widget adjustment) using steel plate
It sleeve and is bolted, easy for installation, connection is reliable；Flexural pivot shaft coupling belongs to universal connecting components, and angle fixed form is using biography
System bolt-tightened type and clamp-type two types combine, and major function is connection oblique shear deformation test displacement meter, can test
Displacement of the lines at any angle.Shear-deformable test device is assembled by the way that various mechanical parts are ingenious, optimizes tradition point
Measure deformation test device overall structure, increase the adaptation range of the device, and improve shear test apparatus installation and
Removal efficiency.Built-in fitting uses sleeve pipe pre-embedding form, the influence degree to core concrete stress is effectively alleviated, using silk
The simple mechanical part assembling such as bar, steel plate, sleeve, bolt, flexural pivot shaft coupling, can be realized horizontal, vertical and diagonal distortion
Test, the device not vulnerable to displacement meter type and test process influence, it can be ensured that test result is reliable and stable.
The present invention is described by embodiment, and those skilled in the art know, is not departing from spirit of the invention
In the case where range, various changes or equivalence replacement can be carried out to these features and embodiment.In addition, in religion of the invention
It leads down, can modify to these features and embodiment to adapt to particular situation and material without departing from essence of the invention
Mind and range.Therefore, the present invention is not limited to the particular embodiment disclosed, fallen with claims hereof
Embodiment in range belongs to protection scope of the present invention.
Claims (4)
1. a kind of shear-deformable test device of pseudo-static experimental reinforced column, it is characterised in that: concrete column (1) is internal
Embedded screw rod (4), screw rod (4) both ends are located at concrete column (1) outside, and steel plate (2) passes through the hole being arranged thereon and nut (8) is solid
Due on screw rod (4), steel plate (2) both ends are set with the plate sleeve (5,12) for installing displacement meter；Steel plate (2) the both ends position
Screw-in installation screw rod (3) is set, is fixed on the outside of screw rod (3) by nut (8), installation is oblique on the inside of the screw rod (3) of concrete column side
To displacement meter screw sleeve (6), oblique displacement meter screw sleeve (6) lower part connected ball hingle shaft device (13), flexural pivot shaft coupling
(13) oblique displacement meter junction steel plate (16) is connected, oblique displacement meter (10) are installed on oblique displacement meter junction steel plate (16), tiltedly
The pull ring for the displacement meter stay screw rod sleeve (11) installed in displacement meter (10) bracing wire connection concrete column other side screw rod (3)
(20)。
2. a kind of shear-deformable test device of pseudo-static experimental reinforced column according to claim 1, feature
Be: the plate sleeve (5) is displacement meter bracing wire sleeve, and plate sleeve (5) lower part is equipped with junction steel plate (19), plate sleeve
(5) top and side installation pull ring (20)；The plate sleeve (12) is anyhow to displacement meter sleeve, plate sleeve (12) lower part
The vertical connecting plate (18) and lateral connection of installation vertical displacement meter (7) and lateral displacement meter (9) are respectively provided with side
Plate (17), plate sleeve (12) top are equipped with pull ring (20).
3. a kind of shear-deformable test device of pseudo-static experimental reinforced column according to claim 1, feature
Be: the concrete column (1), which is internally located at embedded screw rod (4), is equipped with sleeve, and screw rod (4) is located in sleeve (15), screw rod
(4) it is fixed between sleeve (15) by filler.
4. a kind of shear-deformable test device of pseudo-static experimental reinforced column according to claim 1, feature
It is: is equipped with spring shim (14) between steel plate (2) and nut (8) on the screw rod (3)；The steel plate (2) with it is oblique
Spring shim (14) are equipped between displacement meter screw sleeve (6), displacement meter stay screw rod sleeve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811126076.3A CN109632527A (en) | 2018-09-26 | 2018-09-26 | A kind of shear-deformable test device of pseudo-static experimental reinforced column |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811126076.3A CN109632527A (en) | 2018-09-26 | 2018-09-26 | A kind of shear-deformable test device of pseudo-static experimental reinforced column |
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ID=66066296
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975109A (en) * | 2019-04-25 | 2019-07-05 | 华北理工大学 | A kind of the test support of sleeve circumferential direction and displacement meter arrangement apparatus and method |
| CN112326941A (en) * | 2020-10-28 | 2021-02-05 | 大连交通大学 | Strain testing device based on concrete extreme environment |
| CN113374770A (en) * | 2021-05-28 | 2021-09-10 | 西安建筑科技大学 | Movable self-resetting anti-pulling shear connector and design method thereof |
| CN113819867A (en) * | 2021-08-20 | 2021-12-21 | 北京工业大学 | Axial compression column displacement measuring device and method based on spring support |
| CN114486500A (en) * | 2022-02-25 | 2022-05-13 | 哈尔滨工业大学 | Concrete creep test device suitable for various stress combinations and test method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975109A (en) * | 2019-04-25 | 2019-07-05 | 华北理工大学 | A kind of the test support of sleeve circumferential direction and displacement meter arrangement apparatus and method |
| CN109975109B (en) * | 2019-04-25 | 2021-07-13 | 华北理工大学 | Device and method for circumferential support of sleeve and arrangement of displacement meter for test |
| CN112326941A (en) * | 2020-10-28 | 2021-02-05 | 大连交通大学 | Strain testing device based on concrete extreme environment |
| CN113374770A (en) * | 2021-05-28 | 2021-09-10 | 西安建筑科技大学 | Movable self-resetting anti-pulling shear connector and design method thereof |
| CN113819867A (en) * | 2021-08-20 | 2021-12-21 | 北京工业大学 | Axial compression column displacement measuring device and method based on spring support |
| CN113819867B (en) * | 2021-08-20 | 2024-04-05 | 北京工业大学 | Device and method for measuring displacement of axial compression column based on spring support |
| CN114486500A (en) * | 2022-02-25 | 2022-05-13 | 哈尔滨工业大学 | Concrete creep test device suitable for various stress combinations and test method thereof |
| CN114486500B (en) * | 2022-02-25 | 2023-11-10 | 哈尔滨工业大学 | Concrete creep test device suitable for various stress combinations and test method thereof |
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