CN208254778U - Structural test reaction frame with early warning system - Google Patents
Structural test reaction frame with early warning system Download PDFInfo
- Publication number
- CN208254778U CN208254778U CN201820665628.7U CN201820665628U CN208254778U CN 208254778 U CN208254778 U CN 208254778U CN 201820665628 U CN201820665628 U CN 201820665628U CN 208254778 U CN208254778 U CN 208254778U
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- China
- Prior art keywords
- reaction frame
- early warning
- column
- measuring device
- strain
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- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
Structural test reaction frame with early warning system belongs to structural test technical field, and the reaction frame of counter-force support is provided specifically in structural test.Its object is to make up monitoring defect of the reaction frame in terms of normal use and safe bearing load, the accuracy of Test Data Collecting, the safety of practical protection test personnel and equipment are improved.It is characterized in that: setting reaction frame Sign Board and early warning feedback system, early warning feedback system includes Displacement Feedback system and strain feedback system, Displacement Feedback system is formed from first to displacement measuring device, second to displacement measuring device and third to displacement measuring device, and strain feedback system is formed from first to strain gauge means, second to strain gauge means and third to strain gauge means.The utility model can control bearing capacity, displacement and the strain of reaction frame, ensure the accurate acquisition of test data, avoid the generation of safety accident.
Description
Technical field
The utility model belongs to structural test technical field, and the reaction frame of counter-force support is provided specifically in structural test.
Background technique
Reaction frame is the standing device of structural test.Currently known reaction frame, such as Chinese utility model patent specification
CN201520887465.3 and CN200620077347.7 etc. are generally made of column, girder, secondary beam and suspension column.Test component
It is placed under secondary beam, secondary beam, which stacks, to be fixed under girder, and girder is bolted on column, and the root of column is suspension column, suspension column
It takes root in testing bed, testing stand.
These reaction frames construction is clear, is also had his own strong points using function, but common defect is:
The deformation and stress condition of reaction frame unable to monitor, so that seriously affecting the accuracy of test data, or even when anti-
When power frame collapses, personnel can not escape, and equipment is lost totally.
Summary of the invention
The purpose of this utility model is that making up monitoring defect of the reaction frame in terms of normal use and safe bearing load, improve
The accuracy of Test Data Collecting, the safety of practical protection test personnel and equipment.
For the deficiency of art methods, technical problem to be solved in the utility model is designed in existing reaction frame
On the basis of level, early warning system is added.
In order to solve the above technical problems, the utility model adds the Sign Board of reflection reaction frame design bearing capacity situation and anti-
The early warning feedback system of reaction frame actual loading situation is reflected, which includes Displacement Feedback system and strain feedback system
System.
Preferably, the Sign Board is fixed at the full position of column outer side wing edge, indicates the design of reaction frame thereon
Operating condition and its corresponding bearing capacity numerical value.
Preferably, the Displacement Feedback system includes first to displacement measuring device, second to displacement measuring device and the
Three direction displacement measuring device.
Preferably, described first to second to displacement measuring device by steel pedestal, magnetic bases, strut, steering head, solid
Determine sleeve and dial gauge forms, steel pedestal is placed on testing bed, testing stand, and magnetic bases are adsorbed on steel pedestal, and dial gauge is propped up
Bar, steering head and fixes sleeve are connected on magnetic bases, and first is parallel to secondary beam to the dial gauge feeler lever of displacement measuring device
Axis, feeler lever end withstands on the edge of a wing of column, provides reaction frame and surveys along the displacement of secondary beam axis direction, second to displacement
The dial gauge feeler lever of amount device is parallel to the axis of girder, and feeler lever end is withstood on the web of column, provides reaction frame along main
The displacement of beam axis direction.
Preferably, the third by the laser pen that is fixed on girder or secondary beam and is placed on test to displacement measuring device
Scale composition on pedestal, provides reaction frame along the displacement of column axis direction.
Preferably, the strain feedback system includes first to strain gauge means, second to strain gauge means and the
Three-dimensional strain gauge means, these strain gauge means by foil gauge, deformeter and between connecting line form.
Preferably, the described first foil gauge into strain gauge means is attached on column along column axis direction, is provided
Strain of the reaction frame along column axis direction.
Preferably, the described second foil gauge into strain gauge means is attached on girder along girder axis direction, is provided
Strain of the reaction frame along girder axis direction.
Preferably, foil gauge of the third into strain gauge means is attached on secondary beam along secondary beam axis direction, is provided
Strain of the reaction frame along secondary beam axis direction.
The utility model has the beneficial effects that the bearing capacity of reaction frame, displacement and strain can be controlled, test data is ensured
Accurate acquisition, avoid the generation of safety accident.
Detailed description of the invention
Fig. 1 is the axonometric drawing of early warning reaction frame；
Fig. 2 is early warning reaction frame first to displacement measuring device；
Fig. 3 is early warning reaction frame second to displacement measuring device；
Fig. 4 is laser pen of the early warning reaction frame third into displacement measuring device；
Fig. 5 is early warning reaction frame second to strain gauge means.
Figure label: 1, column, 2, girder, 3, secondary beam, 4, the screw hole of adjustment primary and secondary depth of beam on column, 5, on girder
Adjustment column spacing screw hole, 6, the screw hole of adjustment time case bay on girder, 7, the spiral shell of adjustment column spacing on secondary beam
Hole, while as the screw hole of fixed testing equipment, 8, press beam, 9, stud, 10, suspension column, 11, reaction frame bearing capacity situation mark
Know board, 12, reaction frame first to displacement measuring device, 13, reaction frame second to displacement measuring device, 14, reaction frame third to
Scale in displacement measuring device, 15, laser pen of the reaction frame third into displacement measuring device, 16, measurement reaction frame first
To the foil gauge of strain, 17, measurement foil gauge of the reaction frame second to strain, 18,
Measure foil gauge of the reaction frame third to strain, 19, steel pedestal, 20, magnetic bases, 21, strut one, 22, steering
Head, 23, strut two, 24, fixes sleeve, 25, dial gauge of the early warning reaction frame first into displacement measuring device, 26, early warning it is anti-
Dial gauge of the power frame second into displacement measuring device.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.It should be understood that specific reality described herein
It applies example to be only used to explain the utility model, is not used to limit the utility model.
The design and assembling situation of reaction frame are as follows: firstly, design experiment component, makes it meet 11 institute of Sign Board in Fig. 1
The design conditions and its bearing capacity of the reaction frame shown then rely on screw hole 5, and the one of adjustment column 1 relies on screw hole 7 to spacing,
It adjusts the another of column 1 and relies on screw hole 4 to spacing, adjust the height of primary-secondary beam 2 and 3, make test component Reasonable Orientation in counter-force
In frame.Screw hole 6 is adjusted again, is supported on test specimen just on 2 secondary beams 3.Sign Board 11 is fixed on column outer side wing edge distance
At about 1.6 meters of testing bed, testing stand.
See Fig. 1, press beam 8 is placed in the top and lower part on the edge of a wing of primary-secondary beam 2 and 3, they are by stud 9, by primary and secondary
Beam 2 is stacked with 3 to be fixed together.One end of test component is placed on testing bed, testing stand, and the other end stays on secondary beam 3, and secondary beam 3 pushes up
It supports in girder 2, girder 2 is connected by connection bolt in column 1, and column 1 is taken root by suspension column 10 in testing bed, testing stand.
See Fig. 1, Fig. 2 and Fig. 3, first is placed on testing bed, testing stand to the second steel pedestal 19 into displacement measuring device
On, the dial gauge 25 and 26 in device, by magnetic bases 20, strut 1, steering head 22, strut 2 23, fixes sleeve 24
It is fixed on steel pedestal 19.The reading of the dial gauge 25 into displacement measuring device 12 of reaction frame first, as reaction frame is along secondary beam
The displacement of axis direction, the reading of the dial gauge 26 into displacement measuring device 13 of reaction frame second, as reaction frame is along girder axis
The displacement in line direction.See Fig. 1 and Fig. 4, laser pen 15 is fixed on to the middle part of reaction frame secondary beam 3, transmitting laser beam to scale 14
On, the mobile distance of the laser beam is approximately the vertical displacement of reaction frame.Before test, according to testing program, determine normal
Under load, the warning limit value of the aforementioned three direction displacement of reaction frame, in test, when the above-mentioned measured displacements of reaction frame are close to the warning limit value
When, stop test.
See Fig. 1, along column axis direction, the first foil gauge 16 into strain gauge means is attached on column, this is answered
Becoming the strain value that piece is shown is strain of the reaction frame along column axis direction；See Fig. 1 and Fig. 5, along girder axis direction,
Second foil gauge 17 into strain gauge means is attached on girder, and the strain value which shows is reaction frame along main
The strain of beam axis direction；See Fig. 1, along secondary beam axis direction, foil gauge 18 of the third into strain gauge means is attached to secondary
Liang Shang, the strain value which shows are strain of the reaction frame along secondary beam axis direction.Before test, according to test side
Case determines under collapse state, the warning limit value of the aforementioned three direction displacement of reaction frame and three-dimensional strain, in test, works as reaction frame
When above-mentioned measured displacements and strain are close to the warning limit value, stop test, evacuating people and experimental rig.
Claims (8)
1. the structural test reaction frame with early warning system, is made of column, girder, secondary beam and suspension column, test component is placed on secondary
Under beam, secondary beam, which stacks, to be fixed under girder, and girder is bolted on column, and the root of column is suspension column, suspension column take root in
Testing bed, testing stand, it is characterized in that: setting reaction frame Sign Board and early warning feedback system, early warning feedback system include Displacement Feedback system
With strain feedback system, Displacement Feedback system is from first to displacement measuring device, second to displacement measuring device and third to position
Measuring system composition, strain feedback system is from first to strain gauge means, second to strain gauge means and third to answering
Become measuring device composition.
2. the structural test reaction frame according to claim 1 with early warning system, which is characterized in that the Sign Board is solid
Be scheduled at the full position of column outer side wing edge, indicate thereon reaction frame design conditions and its corresponding bearing capacity numerical value.
3. the structural test reaction frame according to claim 1 with early warning system, which is characterized in that described first to
Second is made of to displacement measuring device steel pedestal, magnetic bases, strut, steering head, fixes sleeve and dial gauge, and steel pedestal is put
It sets on testing bed, testing stand, magnetic bases are adsorbed on steel pedestal, and dial gauge is connected to magnetism by strut, steering head and fixes sleeve
On pedestal, first is parallel to the axis of secondary beam to the dial gauge feeler lever of displacement measuring device, and feeler lever end withstands on the wing of column
On edge, reaction frame is provided along the displacement of secondary beam axis direction, second and is parallel to girder to the dial gauge feeler lever of displacement measuring device
Axis, feeler lever end withstands on the web of column, provides reaction frame along the displacement of girder axis direction.
4. the structural test reaction frame according to claim 1 with early warning system, which is characterized in that the third to
Displacement measuring device is made of the laser pen being fixed on girder or secondary beam with the scale being placed on testing bed, testing stand, provides counter-force
Displacement of the frame along column axis direction.
5. the structural test reaction frame according to claim 1 with early warning system, which is characterized in that the strain measurement
Device by foil gauge, deformeter and between connecting line form.
6. the structural test reaction frame according to claim 1 with early warning system, which is characterized in that described first to answering
The foil gauge become in measuring device is attached on column along column axis direction, provides reaction frame along the strain of column axis direction.
7. the structural test reaction frame according to claim 1 with early warning system, which is characterized in that described second to answering
The foil gauge become in measuring device is attached on girder along girder axis direction, provides reaction frame along the strain of girder axis direction.
8. the structural test reaction frame according to claim 1 with early warning system, which is characterized in that the third is to answering
The foil gauge become in measuring device is attached on secondary beam along secondary beam axis direction, provides reaction frame along the strain of secondary beam axis direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720670604 | 2017-06-10 | ||
| CN2017206706046 | 2017-06-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208254778U true CN208254778U (en) | 2018-12-18 |
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ID=64635373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820665628.7U Withdrawn - After Issue CN208254778U (en) | 2017-06-10 | 2018-05-07 | Structural test reaction frame with early warning system |
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| Country | Link |
|---|---|
| CN (1) | CN208254778U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535003A (en) * | 2017-06-10 | 2018-09-14 | 武汉轻工大学 | Structural test reaction frame with early warning system |
-
2018
- 2018-05-07 CN CN201820665628.7U patent/CN208254778U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535003A (en) * | 2017-06-10 | 2018-09-14 | 武汉轻工大学 | Structural test reaction frame with early warning system |
| CN108535003B (en) * | 2017-06-10 | 2023-10-13 | 武汉轻工大学 | Reaction frame with early warning system for structural test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181218 Effective date of abandoning: 20231013 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20181218 Effective date of abandoning: 20231013 |