CN208109070U - The displacement meter that plane maximum distortion measures after a kind of steel construction local buckling - Google Patents
The displacement meter that plane maximum distortion measures after a kind of steel construction local buckling Download PDFInfo
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- CN208109070U CN208109070U CN201820624796.1U CN201820624796U CN208109070U CN 208109070 U CN208109070 U CN 208109070U CN 201820624796 U CN201820624796 U CN 201820624796U CN 208109070 U CN208109070 U CN 208109070U
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- displacement meter
- rigid baffle
- steel construction
- maximum distortion
- measuring staff
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Abstract
The utility model discloses the displacement meters that plane maximum distortion after a kind of steel construction local buckling measures, including rigid baffle, two measuring staffs, displacement meter shell and linear differential transforming circuit and conducting wire, can not track steel construction for traditional displacement meter（Component or node）Maximum flexion problem on deformation after local buckling, propose the mechanism being made of two probes, rigid baffle and displacement meter shell, the mechanism can be along the axially free sliding of measuring staff, the maximum distortion of traceable observation area, and contain the ambiguity and time variation of buckling displacement, the mechanism is combined with the linear differential transforming circuit of traditional displacement meter, forms a kind of novel displacement meter.The displacement meter can be widely applied to steel structure member and Joints, effective to improve displacement data quality.
Description
Technical field
The utility model belongs to steel construction experimental technique field, is related to the deformation measurement technology of a kind of steel member or node,
The displacement meter measured more particularly to plane maximum distortion after a kind of steel construction local buckling.
Background technique
In steel construction（Component and node）During mechanical property test, it usually needs a certain area of measurement component or node
The maximum distortion of plane after the deformation in domain, especially capture steel construction local buckling, and using this maximum distortion as structural capacity
Learn the discrimination standard of performance.Traditional displacement meter measuring staff position is fixed, and can only measure a certain fixed point of plane along measuring staff axial direction
Deformation.However, being influenced by component or node initial imperfection random distribution, local buckling after steel structure member or joints
Position has ambiguity, and with the variation of load, the position of local buckling maximum distortion also changes, therefore often results in position
The result for moving meter measurement is not the maximum distortion for being measured surface, and then influences the judge to component or node mechanical property.
Utility model content
The utility model, which is directed to traditional displacement meter, can not accurately measure after steel construction local buckling maximum distortion in plane
Disadvantage proposes the displacement meter that plane maximum distortion measures after a kind of steel construction local buckling.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is as follows：
The displacement meter that plane maximum distortion measures after a kind of steel construction local buckling, including rigid baffle, measuring staff, displacement meter
Shell and linear differential transforming circuit and conducting wire, the quantity of the measuring staff are two, and two measuring staffs are arranged in parallel, two measuring staffs
One end is vertical with rigid baffle to be connect, and the other ends of two measuring staffs passes through displacement meter shell and forms free end, the displacement meter and
Linear differential transforming circuit and conducting wire connection.
The mechanism being made of two measuring staffs, rigid baffle and displacement meter shell is only capable of the measuring staff bar axis side along displacement meter
To free to slide, any point, which deforms, within the scope of rigid baffle will all push rigid baffle movement, so as to cause linear
Voltage change in differential transforming circuit, and then it is converted into displacement data.
Further, the length of rigid baffle and the height of tested region are close and 20 times no more than measuring staff diameter, just
Property baffle width and tested region similar width and be no more than 8 times of measuring staff diameter, the thickness of rigid baffle is not less than surveying
The diameter of bar.
Further, two measuring staffs are located at rigid baffle quartile in rigid baffle length direction, wide in rigid baffle
Degree direction is located at rigid baffle midpoint.
Further, rigid baffle and displacement meter shell are all made of aluminum alloy materials.
The beneficial effects of the invention are as follows：
The present invention construction it is succinct, low in cost, be easily installed, be easy to use, can to after measured plane buckling most
Large deformation is accurately tracked, and contains the uncertainty and time variation of maximum distortion position, can be widely applied to steel construction
Component and Joints effectively improve displacement data quality.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of utility model.
Fig. 2 is that displacement meter is applied to the preceding elevation with during test of steel member test；
Fig. 3 is that displacement meter is applied to the preceding top view with during test of steel member test.
Reference signs list：
Rigid baffle 1；Measuring staff 2；Displacement meter shell 3；Linear differential transforming circuit and conducting wire 4；It is measured steel member 5；Magnetic
Property gauge stand 6.
Specific embodiment
With reference to the accompanying drawings and detailed description, the utility model is furtherd elucidate, it should be understood that following specific embodiment parties
Formula is merely to illustrate the utility model rather than limitation the scope of the utility model.It should be noted that making in being described below
Word "front", "rear", "left", "right", "up" and "down" refer to that the direction in attached drawing, word "inner" and "outside" respectively refer to
Be directed towards or far from geometric center of specific component direction.
As shown in Figures 2 and 3, before steel structure member or Joints, according to the position of test specimen, force way and support strip
Part is placed Magnetic gauge stand 6, is clamped displacement meter shell 3 by the fixture of Magnetic gauge stand 6, the measuring staff 2 of displacement meter should be as far as possible at this time
In equilbrium position and displacement meter measuring staff 2 it is vertical with rigid baffle 1, the rigid baffle 1 of displacement meter and tested component or node table
Face 5 fits closely, and finally correctly connect displacement meter conducting wire 4 with data collecting instrument.After on-test, component partial buckling is pushed
Rigid baffle 1 slides, to record local buckling maximum distortion.
Technological means disclosed in the utility model is not limited only to technological means disclosed in above embodiment, also
Including technical solution consisting of any combination of the above technical features.
Claims (3)
1. the displacement meter that plane maximum distortion measures after a kind of steel construction local buckling, including rigid baffle（1）, measuring staff（2）, position
Move meter shell（3）With linear differential transforming circuit and conducting wire（4）, it is characterised in that：The measuring staff（2）Quantity be two, two
Root measuring staff（2）It is arranged in parallel, two measuring staffs（2）One end and rigid baffle（1）Vertical connection, two measuring staffs（2）The other end
Across displacement meter shell（3）Free end is formed, displacement meter can be along measuring staff（2）Bar axis direction is freely moved forward and backward, institute's rheme
Move meter shell（3）With linear differential transforming circuit and conducting wire（4）Connection.
2. the displacement meter that plane maximum distortion measures after a kind of steel construction local buckling according to claim 1, feature
It is, rigid baffle（1）Length it is close with the height of tested region and be no more than measuring staff（2）20 times of diameter, rigid baffle
（1）Width and tested region similar width and be no more than measuring staff（2）8 times of diameter, rigid baffle（1）Thickness be not less than
Measuring staff（2）Diameter.
3. the displacement meter that plane maximum distortion measures after a kind of steel construction local buckling according to claim 1, feature
It is, two measuring staffs（2）In rigid baffle（1）Length direction is located at rigid baffle（1）At quartile, in rigid baffle width side
To positioned at rigid baffle（1）Midpoint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820624796.1U CN208109070U (en) | 2018-04-28 | 2018-04-28 | The displacement meter that plane maximum distortion measures after a kind of steel construction local buckling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820624796.1U CN208109070U (en) | 2018-04-28 | 2018-04-28 | The displacement meter that plane maximum distortion measures after a kind of steel construction local buckling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208109070U true CN208109070U (en) | 2018-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820624796.1U Active CN208109070U (en) | 2018-04-28 | 2018-04-28 | The displacement meter that plane maximum distortion measures after a kind of steel construction local buckling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208109070U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115876070A (en) * | 2023-03-03 | 2023-03-31 | 长安大学 | Monitoring and early warning device for bridge steel plate buckling deformation in fire and installation method |
-
2018
- 2018-04-28 CN CN201820624796.1U patent/CN208109070U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115876070A (en) * | 2023-03-03 | 2023-03-31 | 长安大学 | Monitoring and early warning device for bridge steel plate buckling deformation in fire and installation method |
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