CN205607790U - 3 out -phase loading test device on decking full size model - Google Patents
3 out -phase loading test device on decking full size model Download PDFInfo
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- CN205607790U CN205607790U CN201620280625.2U CN201620280625U CN205607790U CN 205607790 U CN205607790 U CN 205607790U CN 201620280625 U CN201620280625 U CN 201620280625U CN 205607790 U CN205607790 U CN 205607790U
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- 238000012360 testing method Methods 0.000 title claims abstract description 66
- 238000009408 flooring Methods 0.000 claims description 17
- 239000011888 foil Substances 0.000 claims description 11
- 238000004458 analytical method Methods 0.000 claims description 5
- 238000009661 fatigue test Methods 0.000 abstract description 14
- 238000004088 simulation Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000002929 anti-fatigue Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a 3 out -phase loading test device on decking full size model, include: test piece, test piece fixing device, loading device, controlling means, data acquisition device and computer, the test piece is fixed on test piece fixing device, loading device includes 3 actuator, and it applys perpendicular effort to the test piece in proper order under controlling means control, 3 the phase difference of individual actuator loading wave form is the fixed value, the data acquisition device is with data transfer to computer, the computer link and the controlling devic. Through 3 out -phase loading test device on decking full size model carries out 3 out -phase load fatigue test, more accurate simulation automobile wheel load from the out of date true situation of on bridge expert.
Description
Technical field
This utility model relates to a kind of 3 out-phase load testing machines of floorings prototype.
Background technology
Up to now, the improvement of domestic and international steel bridge deck various structure detail anti-fatigue performance is all based on greatly
The achievement of amount fatigue test, the fatigue test of steel bridge deck different configuration details in early days all uses small size to try
Part, owing to the stress of steel bridge deck is extremely complex, relying solely on these small-size test pieces can not be true
Simulate its actual forced status, occurred as soon as big full size partial model fatigue test later, and the most also had mould
Intend the small specimen fatigue test of a certain structure detail, but be not developing direction.Due to fatigue test cost very
Height, therefore most full size partial model fatigue tests are all proving tests.Develop into the most again use foot
Chi Segment Model carries out tired checking test.How accurate simulation moves vehicular load but becomes the full size stage
One outstanding problem of model fatigue test, uses actual wheel to load, and requires test space big,
Cost of equipment is huge, and loading velocity is slow.
Current domestic full size partial model row fatigue test, main employing single-point loads, China's railway later
First research institute has carried out 2 phase-inversion symmetrics and has loaded, and relatively single-point loads the reality closer to structure
Stress, but load with actual wheel and still there is certain gap.
Utility model content
For solving the problems referred to above, the purpose of this utility model is to provide a kind of floorings prototype three point
Out-phase load testing machine.
The purpose of this utility model is achieved through the following technical solutions:
A kind of 3 out-phase load testing machines of floorings prototype, including: the fixing dress of test specimen, test specimen
Put, charger, control device, data acquisition unit and computer；
Wherein, described test specimen is fixed on test piece fixing device；
Described charger includes 3 actuator, and described actuator is perpendicular to just going up of described test specimen panel
Side；Described control device connects described actuator and applies vertical, institute successively to described test specimen panel
The phase contrast stating 3 actuator Loaded contact analysis is fixed value；
Described data acquisition unit includes readout instrument and multiple foil gauge, and the plurality of foil gauge is respectively mounted
On described test specimen, described foil gauge transfers data to computer by readout instrument, and described computer is even
Connect described control device.
Further, described test specimen is floorings full size Segment Models；Described test specimen top is a rectangle
Panel, it is parallel to horizontal direction, and described rectangular faceplate bottom has been longitudinally arranged U-shaped rib, rectangle
Panel bottom passes described cross rib along its laterally homogeneous cross rib that is disposed with, described U-shaped rib.
Further, described test piece fixing device is support beam, and it is installed on bottom described test specimen.
Further, described actuator top connects counter-force loading beam respectively.
Further, being connected to loading blocks bottom described actuator, described loading blocks is perpendicular to described
The surface of test specimen；Described control device connects described actuator and applies vertical, drives described
Loading blocks applies vertical successively to described test specimen.
Further, the plurality of foil gauge is separately mounted to described U-shaped rib and the junction of cross rib and U
Shape rib and the junction of rectangular faceplate.
The beneficial effects of the utility model are:
By 3 out-phase load testing machines of floorings prototype described in the utility model carry out 3 different
Phase loading fatigue test, simulate more accurately automobile wheel load from bridge by time real conditions.
Accompanying drawing explanation
Fig. 1 is 3 out-phase load testing machines of floorings prototype described in this utility model embodiment 1
Structural representation；
Fig. 2 is that full size Segment Model described in the utility model confirmatory fatigue test actuator Loaded contact analysis shows
It is intended to；
Fig. 3 is that in this utility model, 3 out-phase load tests of floorings prototype described in embodiment 2 are shown
It is intended to.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with attached
Figure and embodiment, be further elaborated to this utility model.Should be appreciated that described herein
Specific embodiment, only in order to explain this utility model, is not used to limit this utility model.
A kind of 3 out-phase load testing machines of floorings prototype, as it is shown in figure 1, include: test specimen,
Test piece fixing device, charger, control device, data acquisition unit and computer；
Test specimen, described test specimen can be longitudinally intercept 3 internodes, 3 U-shaped ribs of taken transverse orthogonal different
Property floorings full size Segment Model etc. is also other highway bridge Slab；Described test specimen top is one rectangular
Shape panel, it is parallel to horizontal direction, and described rectangular faceplate bottom has been longitudinally arranged U-shaped rib, rectangular
Shape panel bottom laterally homogeneous is disposed with 4 cross ribs along it, and described U-shaped rib passes described cross rib；
Described test piece fixing device is support beam, and it is installed on bottom described test specimen；
Described charger includes that 3 actuator, described actuator top connect counter-force loading beam respectively,
Being connected to loading blocks bottom described actuator, described loading blocks is perpendicular to the rectangle face of described test specimen
The surface of plate；Described control device connects described actuator and applies vertical, adds described in drive
Carry block and directly over the cross rib of described test specimen and on the rectangular faceplate of both sides, apply vertical successively,
The phase contrast of described 3 actuator Loaded contact analysis is preferably 120 °, as in figure 2 it is shown, or be 90 °, 60 °；
Described data acquisition unit includes readout instrument and multiple foil gauge, and the plurality of foil gauge is respectively mounted
At the junction of the junction of described U-shaped rib and cross rib and U-shaped rib with rectangular faceplate, described foil gauge
Transferring data to computer by readout instrument, described computer connects control device.
When being tested by assay device described in the utility model, testing equipment uses Saginomiya to make
The V605 type 3800kN electro-hydraulic servo fatigue test of structure system produced, uses 2 500kN starts
Device (stroke 300mm), 1 1000kN actuator (stroke 300mm).Described U-shaped rib and cross rib
Junction and the weld seam of junction of U-shaped rib and rectangular faceplate all carry out Non-Destructive Testing.Carry out tired
Static test is first carried out, in U-shaped rib and panel junction, U-shaped rib and cross rib interconnection before labor test
Foil gauge, test local stress distribution are all pasted in the position at place, and contrast with result of finite element,
With corrected Calculation model.Three actuator load the most successively, the phase of each actuator Loaded contact analysis
Potential difference is 120 °, and such a loaded cycle just can be simulated wheel and be loaded on steel bridge deck one by cross rib
Complete loading sequence.Fatigue Test Loads amplitude is 1.5 times of actual wheel load.Loading frequency is 1～2Hz,
When being loaded into 1,000,000,2,000,000 ..., 10,000,000 times time, again do static test after shutdown, survey
The situation of change of examination local stress.Observing at any time in process of the test has flawless to produce, if it has, then
Record loaded cycle number of times and crack position.Different by floorings prototype described in the utility model 3
Phase load testing machine carries out 3 out-phase loading fatigue tests, simulate more accurately automobile wheel load from
On bridge by time real conditions.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model,
For a person skilled in the art, this utility model can have various modifications and variations.All in this reality
Within novel spirit and principle, any modification, equivalent substitution and improvement etc. made, all should comprise
Within protection domain of the present utility model.
Claims (5)
1. 3 out-phase load testing machines of a floorings prototype, it is characterised in that
Including: test specimen, test piece fixing device, charger, control device, data acquisition unit and
Computer；
Wherein, described test specimen is fixed on test piece fixing device；
Described charger includes 3 actuator, and described actuator is perpendicular to described test specimen panel
Surface；Described control device connects described actuator and applies successively to hang down to described test specimen panel
Straight active force, the phase contrast of described 3 actuator Loaded contact analysis is fixed value；
Described data acquisition unit includes readout instrument and multiple foil gauge, and the plurality of foil gauge divides
Not being arranged on described test specimen, described foil gauge transfers data to computer by readout instrument,
Described computer connects described control device.
3 out-phase load test dresses of floorings prototype the most according to claim 1
Put, it is characterised in that described test specimen is floorings full size Segment Models.
3 out-phase load test dresses of floorings prototype the most according to claim 1
Putting, it is characterised in that described test piece fixing device is support beam, it is installed at the bottom of described test specimen
Portion.
3 out-phase load test dresses of floorings prototype the most according to claim 1
Put, it is characterised in that described actuator top connects counter-force loading beam respectively.
3 out-phase load test dresses of floorings prototype the most according to claim 1
Putting, it is characterised in that be connected to loading blocks bottom described actuator, described loading blocks is hung down
Straight in the surface of described test specimen；Described control device connects described actuator and applies vertical work
Firmly, described loading blocks is driven to apply vertical successively to described test specimen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620280625.2U CN205607790U (en) | 2016-04-06 | 2016-04-06 | 3 out -phase loading test device on decking full size model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620280625.2U CN205607790U (en) | 2016-04-06 | 2016-04-06 | 3 out -phase loading test device on decking full size model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205607790U true CN205607790U (en) | 2016-09-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620280625.2U Active CN205607790U (en) | 2016-04-06 | 2016-04-06 | 3 out -phase loading test device on decking full size model |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314932A (en) * | 2017-06-16 | 2017-11-03 | 河海大学 | Modularization fatigue test place and corollary apparatus, fatigue test method |
| CN110553916A (en) * | 2019-09-03 | 2019-12-10 | 辽宁工程技术大学 | point-type loading universal load transfer experimental stress loading system and method |
| CN114295334A (en) * | 2021-10-14 | 2022-04-08 | 天津大学 | Fatigue test platform device and analysis method for foot-size orthotropic steel bridge deck slab |
-
2016
- 2016-04-06 CN CN201620280625.2U patent/CN205607790U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314932A (en) * | 2017-06-16 | 2017-11-03 | 河海大学 | Modularization fatigue test place and corollary apparatus, fatigue test method |
| CN107314932B (en) * | 2017-06-16 | 2024-04-12 | 河海大学 | Modularized fatigue test field, matched device and fatigue test method |
| CN110553916A (en) * | 2019-09-03 | 2019-12-10 | 辽宁工程技术大学 | point-type loading universal load transfer experimental stress loading system and method |
| CN110553916B (en) * | 2019-09-03 | 2022-04-12 | 辽宁工程技术大学 | Point-type loading universal load transfer experimental stress loading system and method |
| CN114295334A (en) * | 2021-10-14 | 2022-04-08 | 天津大学 | Fatigue test platform device and analysis method for foot-size orthotropic steel bridge deck slab |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |