CN109060514A - It keeps stretching out unstability does not occur first for steel plate device and its implementation method in Steel Compression component test - Google Patents
It keeps stretching out unstability does not occur first for steel plate device and its implementation method in Steel Compression component test Download PDFInfo
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- CN109060514A CN109060514A CN201811280566.9A CN201811280566A CN109060514A CN 109060514 A CN109060514 A CN 109060514A CN 201811280566 A CN201811280566 A CN 201811280566A CN 109060514 A CN109060514 A CN 109060514A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 146
- 239000010959 steel Substances 0.000 title claims abstract description 146
- 238000012360 testing method Methods 0.000 title claims abstract description 44
- 230000006835 compression Effects 0.000 title claims abstract description 32
- 238000007906 compression Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000003447 ipsilateral effect Effects 0.000 claims abstract description 20
- 238000010276 construction Methods 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000013112 stability test Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003351 stiffener Substances 0.000 description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding 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
- G01N3/02—Details
-
- 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
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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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
The present invention provides a kind of device and its implementation method for keeping stretching steel plate that unstability does not occur first in Steel Compression component test, it keeps stretching out the device that unstability does not occur first for steel plate in Steel Compression component test, the steel member includes the cantilever steel plate that oriented two sides extend, the plate of temporarily putting more energy into for being each provided with a pair including being located at steel member test specimen two sides, cantilever steel plate folder side is sandwiched between the interim plate of putting more energy into of ipsilateral a pair, the plate of temporarily putting more energy into is arranged in parallel with cantilever steel plate, bolt connection bolt through plates of temporarily putting more energy into through two between the interim plate of putting more energy into of ipsilateral a pair is not contacted with cantilever steel plate, the device can not only be constrained cantilever portion steel splitting plate is stretched out, it may also be ensured that extra variable will not be introduced to local stability test.The device reasonable stress, design science, durability is excellent, can be recycled.
Description
Technical field
The present invention relates to a kind of in Steel Compression component test keeps stretching out the device and in fact that unstability does not occur first for steel plate
Applying method.
Background technique
In steel construction, many test specimens have the form for stretching out steel plate.For example, box-shaped steel structure, i shaped steel, with closing
The stiffener of mouthful rib or stiffener with open ribs.In the local stability test being pressurized to these steel constructions, often
It stretches out steel plate and unstability first occurs, and be unable to get the unstability performance of other plates of non-protruding steel plate, in order to guarantee extension
Unstability does not occur first for steel plate, is often tested using shorter stretching steel plate test specimen construction.Made using shorter stretching steel plate
It obtains test specimen and loses symmetry, the residual stress of component is caused to change, introduce nuisance variable for test, be unfavorable for being tried
Test analysis.As it can be seen that unstability does not occur first in order to guarantee to stretch out steel plate, the weight that constraint is research is carried out to it using suitable method
Point.
Summary of the invention
The present invention improves the above problem, i.e., has Steel Cantilever the technical problem to be solved by the present invention is to existing
The steel construction of plate often stretches out steel plate and unstability first occurs when carrying out stability test, and is unable to get the other of non-protruding steel plate
The unstability performance of plate.
Specific embodiments of the present invention are: keeping stretching out the dress that unstability does not occur first for steel plate in Steel Compression component test
It sets, the steel member includes the cantilever steel plate that oriented two sides extend, including being each provided with a pair positioned at steel member test specimen two sides
Temporarily put more energy into plate, cantilever steel plate folder side is sandwiched in ipsilateral a pair and temporarily puts more energy between plate, described temporarily to put more energy into
Plate is arranged in parallel with cantilever steel plate, the bolt through plates of temporarily putting more energy into through two between the interim plate of putting more energy into of ipsilateral a pair
It connects and bolt is not contacted with cantilever steel plate.
Further, the plate of temporarily putting more energy into is provided with polytetrafluoro towards between the side and cantilever steel plate of cantilever steel plate
Vinyl plate, to reduce the frictional force temporarily put more energy between plate and cantilever steel plate.
Further, the rubber mat plate on the outside of cantilever steel plate is also accompanied between the interim plate of putting more energy into of ipsilateral a pair,
Ensure bolt it is fixed it is ipsilateral temporarily put more energy into plate when warpage does not occur.
Further, the rubber mat plate thickness is consistent with cantilever steel plate thickness.
Further, the plate of temporarily putting more energy into is 2-6cm, the polytetrafluoro with cantilever steel plate overlapping part lateral length
Vinyl plate is with a thickness of 0.5mm ~ 3mm.
Further, the bolt diameter selects M16~M27.
Further, the plate of temporarily putting more energy into is extended with side and is extended with side plate perpendicular to plate of temporarily putting more energy into.
The invention also includes a kind of to keep stretching out the construction method that unstability does not occur first for steel plate in Steel Compression component test,
Characterized by comprising the following steps:
(1) production of interim plate of putting more energy into: should carry out Xian Ping processing to the surface for plate of temporarily putting more energy into, and guarantee that surface is smooth and do not send out
Raw protrusion.Tenon sheet is pasted in the overlapping of the cantilever steel plate of temporarily put more energy into plate and compression steel member, and will be every
Block plate of temporarily putting more energy into beats several bolts hole along longitudinal direction, and hole size is determined according to Bolt sizes, in plate of temporarily putting more energy into
Side arranges that strain rosette will not share excessive power to monitor on angle steel；
(2) restraint device is placed: the every side of the cantilever steel plate of compression steel member configures two blocks of plates of temporarily putting more energy into, plate of temporarily putting more energy into
Keeping parallelism and the stretching cantilever steel plate for pressing from both sides folded compression steel member, while plate gap placement of temporarily putting more energy at ipsilateral two
Rubber mat plate；It is the plate that ensures temporarily to put more energy into the longitudinal direction without departing from compression steel member test specimen, in order to avoid influence subsequent
The upper and lower end parts of loading procedure, plate upper and lower ends of temporarily putting more energy into and cantilever steel plate are reserved with 5~7cm distance；With bolt to same
The interim plate of putting more energy into of two of side is fixed, and bolt not can contact test specimen, avoid the transmitting of power；
(3) test specimen is installed: after restraint device fixes, the test specimen with device being placed on loading bench, is done for test load
Prepare.
Further, there is the load plate being located at over and under steel member on the loading bench, consolidate in the load plate
Surely it is connected with end plate, there is the slot being consistent with steel member cross section profile, steel member both ends insertion end board slot hole on the end plate
It is interior to simulate steel member both sides freely-supported the case where, the load plate be rectangular steel plates for fixed charge method end plate and steel member load when
Load, end plate and load plate are transmitted by being fixedly connected.
Further, when ipsilateral two plates of temporarily putting more energy into are fixed in bolt, when bolt fastening, need to be followed in elder generation
Between, the sequence on rear both sides, and need to fasten stage by stage.
Compared with prior art, the invention has the following advantages: the present invention keeps stretching in Steel Compression component test
The device that unstability does not occur first for steel plate out can not only be constrained cantilever portion steel splitting plate is stretched out, it may also be ensured that will not play a game
Portion's stability test introduces extra variable.The device reasonable stress, design science, durability is excellent, can be recycled, and meets green
The idea of development of environmental protection.The device is quick for installation simple simultaneously, there is preferable application prospect.
Detailed description of the invention
Fig. 1 is the interim plate structural schematic diagram of putting more energy into of the present invention.
Fig. 2 is interim plate and the steel member fit structure schematic diagram of putting more energy into of the present invention.
Fig. 3 be Steel Compression component test of the present invention in load plate fit structure schematic diagram.
Specific embodiment
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
As shown in Figures 1 to 3, it keeps stretching out the device that unstability does not occur first for steel plate, the steel in Steel Compression component test
Component 10 includes the cantilever steel plate 110 that oriented two sides extend, including being each provided with a pair of face positioned at steel member test specimen two sides
When put more energy into plate 20, cantilever steel plate folder side is sandwiched in ipsilateral a pair and temporarily puts more energy between plate 20, described temporarily to put more energy into
Plate is arranged in parallel with cantilever steel plate, through the high-strength of plate of temporarily putting more energy into through two between the interim plate of putting more energy into of ipsilateral a pair
Bolt 201 connects and high-strength bolt is not contacted with cantilever steel plate 110.
In the present embodiment, the plate 20 of temporarily putting more energy into is poly- towards being provided between the side and cantilever steel plate of cantilever steel plate
Tetrafluoroethene plate 30, to reduce the frictional force temporarily put more energy between plate and cantilever steel plate, polyfluortetraethylene plate 30 adds with interim
Strength plate 20 is glued.Polyfluortetraethylene plate 30 is located at the overlapping of temporarily put more energy into plate 20 and cantilever steel plate.
In the present embodiment, the rubber mat plate on the outside of cantilever steel plate is also accompanied between the interim plate of putting more energy into of ipsilateral a pair
40, i.e., rubber mat plate is placed at the gap position between plate of temporarily putting more energy into, so that it is guaranteed that reinforcing ipsilateral one in high-strength bolt
To temporarily putting more energy into during plate 20 of temporarily putting more energy into, warpage, 40 thickness of rubber mat plate and cantilever steel plate thickness do not occur for plate
Unanimously.
In the present embodiment, temporarily put more energy into plate and the cantilever steel plate overlapping part lateral length are 2-6cm, described poly- four
Vinyl fluoride plate thickness is 0.5mm ~ 3mm, and the high-strength bolt nominal diameter selects M16~M27.
In the present embodiment, the plate of temporarily putting more energy into be extended with side be extended with the side plate perpendicular to plate of temporarily putting more energy into
It forms T-type or turns shape, plate of temporarily putting more energy into certainly described in actual design can be angle steel, the stiffener with rib of slab or T rib.
Concrete construction method the following steps are included:
(1) production of interim plate of putting more energy into: should carry out Xian Ping processing to the surface for plate of temporarily putting more energy into, and guarantee that surface is smooth and do not send out
Raw protrusion.Tenon sheet is pasted in the overlapping of the cantilever steel plate of temporarily put more energy into plate and compression steel member, and will be every
Block plate of temporarily putting more energy into beats several bolts hole along longitudinal direction, and hole size is determined according to Bolt sizes, in plate of temporarily putting more energy into
Side arranges that strain rosette will not share excessive power to monitor on angle steel；
(2) restraint device is placed: the every side of the cantilever steel plate of compression steel member configures two blocks of plates of temporarily putting more energy into, plate of temporarily putting more energy into
Keeping parallelism and the stretching cantilever steel plate for pressing from both sides folded compression steel member, while plate gap placement of temporarily putting more energy at ipsilateral two
Rubber mat plate；It is the plate that ensures temporarily to put more energy into the longitudinal direction without departing from compression steel member test specimen, in order to avoid influence subsequent
The upper and lower end parts of loading procedure, plate upper and lower ends of temporarily putting more energy into and cantilever steel plate are reserved with 5~7cm distance；With bolt to same
The interim plate of putting more energy into of two of side is fixed, and bolt not can contact test specimen, avoid the transmitting of power, bolt faces ipsilateral two
When put more energy into plate when being fixed, when bolt fastening, need to follow the sequence on first intermediate, rear both sides, and need to fasten stage by stage；
(3) test specimen is installed: after restraint device fixes, the test specimen with device being placed on loading bench, is done for test load
Prepare.
When experiment, there is the load plate 50 being located at over and under steel member, the load on the loading bench of experimental rig
It is fixedly connected with end plate 60 on plate, there are the slot 610 being consistent with steel member cross section profile, steel member both ends on the end plate 60
The case where in insertion end board slot hole to simulate steel member both sides freely-supported, the load plate 50 are that rectangular steel plates are used for fixed charge method end plate simultaneously
Load, end plate and load plate 50 is transmitted in steel member load to be fixedly connected by clamping screw 620.
If the present invention is open or relates to the components or structural member of connection fastened to each other, unless otherwise stated,
It is fixedly connected it is to be understood that connection (such as connecting using bolt or screw) can be removedly fixed, it is understood that are as follows:
It is non-removable to be fixedly connected with (such as riveting, welding), certainly, connection fastened to each other or integral structure (such as make
Manufactured with casting technique is integrally formed) replaced (obviously can not be using except integrally formed technique).
In addition, for indicating the art of positional relationship or shape applied in any technical solution disclosed in aforementioned present invention
Its meaning includes approximate with its, similar or close state or shape to language unless otherwise stated.
Either component provided by the invention by multiple individual component parts either assembled, or one
The separate part that forming technology manufactures.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (10)
1. keeping stretching out the device that unstability does not occur first for steel plate in Steel Compression component test, the steel member includes oriented two sides
The cantilever steel plate of extension, which is characterized in that the plate of temporarily putting more energy into for being each provided with a pair including being located at steel member test specimen two sides,
Cantilever steel plate folder side is sandwiched between the interim plate of putting more energy into of ipsilateral a pair, and the plate of temporarily putting more energy into is flat with cantilever steel plate
Row setting, ipsilateral a pair temporarily put more energy between plate the bolt connection bolt through plates of temporarily putting more energy into through two not with it is outstanding
The contact of arm steel plate.
2. according to claim 1 keep stretching out the device that unstability does not occur first for steel plate in Steel Compression component test,
It being characterized in that, the plate of temporarily putting more energy into is provided with polyfluortetraethylene plate towards between the side and cantilever steel plate of cantilever steel plate,
To reduce the frictional force temporarily put more energy between plate and cantilever steel plate.
3. according to claim 1 or 2 keep stretching out the device that unstability does not occur first for steel plate in Steel Compression component test,
The rubber mat plate on the outside of cantilever steel plate is also accompanied between plate it is characterized in that, ipsilateral a pair is temporarily put more energy into, it is ensured that
Bolt it is fixed it is ipsilateral temporarily put more energy into plate when warpage does not occur.
4. according to claim 3 keep stretching out the device that unstability does not occur first for steel plate in Steel Compression component test,
It is characterized in that, the rubber mat plate thickness is consistent with cantilever steel plate thickness.
5. according to claim 1 or 2 keep stretching out the device that unstability does not occur first for steel plate in Steel Compression component test,
It is characterized in that, the plate of temporarily putting more energy into is 2-6cm, the polyfluortetraethylene plate with cantilever steel plate overlapping part lateral length
With a thickness of 0.5mm ~ 3mm.
6. according to claim 1 keep stretching out the device that unstability does not occur first for steel plate in Steel Compression component test,
It is characterized in that, the bolt diameter selects M16~M27.
7. according to claim 1 or 2 keep stretching out the device that unstability does not occur first for steel plate in Steel Compression component test,
It is characterized in that, the plate of temporarily putting more energy into is extended with side and is extended with side plate perpendicular to plate of temporarily putting more energy into.
8. a kind of keep stretching out the construction method that unstability does not occur first for steel plate in Steel Compression component test, which is characterized in that packet
Include following steps:
(1) production of interim plate of putting more energy into: should carry out Xian Ping processing to the surface for plate of temporarily putting more energy into, and guarantee that surface is smooth and do not send out
Raw protrusion；
Tenon sheet is pasted in the overlapping of the cantilever steel plate of temporarily put more energy into plate and compression steel member, and every piece is faced
When plate of putting more energy into beat several bolts hole along longitudinal direction, hole size is determined according to Bolt sizes, in the side for plate of temporarily putting more energy into
Arrange that strain rosette will not share excessive power to monitor on angle steel；
(2) restraint device is placed: the every side of the cantilever steel plate of compression steel member configures two blocks of plates of temporarily putting more energy into, plate of temporarily putting more energy into
Keeping parallelism and the stretching cantilever steel plate for pressing from both sides folded compression steel member, while plate gap placement of temporarily putting more energy at ipsilateral two
Rubber mat plate；It is the plate that ensures temporarily to put more energy into the longitudinal direction without departing from compression steel member test specimen, in order to avoid influence subsequent
The upper and lower end parts of loading procedure, plate upper and lower ends of temporarily putting more energy into and cantilever steel plate are reserved with 5~7cm distance；With bolt to same
The interim plate of putting more energy into of two of side is fixed, and bolt not can contact test specimen, avoid the transmitting of power；
(3) test specimen is installed: after restraint device fixes, the test specimen with device being placed on loading bench, is done for test load
Prepare.
9. a kind of construction for keeping stretching steel plate that unstability does not occur first in Steel Compression component test according to claim 8
Method, which is characterized in that there is the load plate being located at over and under steel member on the loading bench, fixed in the load plate
It is connected with end plate, there is the slot being consistent with steel member cross section profile on the end plate, in the insertion end board slot hole of steel member both ends
The case where to simulate steel member both sides freely-supported, the load plate are that rectangular steel plates are passed for fixed charge method end plate and in steel member load
Load, end plate and load plate are passed by being fixedly connected.
10. a kind of holding in Steel Compression component test according to claim 9 stretches out steel plate and applying for unstability does not occur first
Work method, which is characterized in that when ipsilateral two plates of temporarily putting more energy into are fixed in bolt, when bolt fastening need to be followed in elder generation
Between, the sequence on rear both sides, and need to fasten stage by stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811280566.9A CN109060514B (en) | 2018-10-30 | 2018-10-30 | Device for keeping extended steel plate from destabilizing in pressed steel member test and implementation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811280566.9A CN109060514B (en) | 2018-10-30 | 2018-10-30 | Device for keeping extended steel plate from destabilizing in pressed steel member test and implementation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN109060514A true CN109060514A (en) | 2018-12-21 |
| CN109060514B CN109060514B (en) | 2024-05-17 |
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| Publication number | Publication date |
|---|---|
| CN109060514B (en) | 2024-05-17 |
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