CN108931348A - A kind of efficient bridge structure fatigue experimental device - Google Patents
A kind of efficient bridge structure fatigue experimental device Download PDFInfo
- Publication number
- CN108931348A CN108931348A CN201811145912.2A CN201811145912A CN108931348A CN 108931348 A CN108931348 A CN 108931348A CN 201811145912 A CN201811145912 A CN 201811145912A CN 108931348 A CN108931348 A CN 108931348A
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- rack
- fixedly connected
- bridge structure
- test
- testing stand
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/022—Vibration control arrangements, e.g. for generating random vibrations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
Abstract
The invention discloses a kind of efficient bridge structure fatigue experimental devices, belong to bridge structure technical field, its key points of the technical solution are that, including testing stand, the upper surface of testing stand is connected with rack, the side of rack is provided with support plate, upper end face of support plate is fixedly connected with non-destructive testing device, non-destructive testing device includes probe and defectoscope, one end of probe is connect with defectoscope by conducting wire, the lateral wall of defectoscope is electrically connected with signal output, the one side wall insertion of rack is provided with sensing device, sensing device includes sensor and the second battery, during test, non-destructive testing device can carry out Data Detection to subjects, the data that signal output will test are exported, sensing device can be acquired data simultaneously, pass through setting non-destructive testing device and sensing device, improve examination The efficiency of test examination, while also improving the accuracy of test data.
Description
Technical field
The present invention relates to bridge structure technical field, in particular to a kind of efficient bridge structure fatigue experimental device.
Background technique
With being constantly progressive for Modern Traffic, the investment construction of bridge just increases year by year, and the construction of bridge is in traffic circulation
It plays an important role in system, long-term vehicle is passing so that bridge structure is easy to produce fatigue damage, even results in knot
Structure failure, in order to preferably build bridge, needs to carry out bridge knot by the way of the fatigue test of laboratory to bridge structure
The stability simulation test of structure.
Currently used bridge structure test macro be hydraulic fatigue test system, hydraulic fatigue test system be usually by
Pulse hydraulic source supplies power to hydraulic device, and hydraulic device carries out hydraulic test to bridge structure, counted by testing
According to comparison, but structure is complicated for existing bridge structure fatigue rig, and test data low there is testing efficiency is not
Accurate problem.
Summary of the invention
The present invention provides a kind of efficient bridge structure fatigue experimental device, it is intended to solve the examination of existing highway bridge structural fatigue
Testing equipment has that testing efficiency is low and test data is inaccurate.
The invention is realized in this way a kind of efficient bridge structure fatigue experimental device, including testing stand, the examination
The upper surface for testing platform is connected with rack, and the side of the rack is provided with support plate, the bottom of the support plate with
The upper surface of testing stand is fixedly connected, and the upper end face of support plate is fixedly connected with non-destructive testing device, the non-destructive testing dress
It sets and is connect with defectoscope by conducting wire including probe and defectoscope, one end of the probe, the lateral wall of the defectoscope is electrical
It is connected with signal output, the bottom of the defectoscope is connected with the first battery, the bottom of first battery by conducting wire
Portion is fixedly connected with support plate, and the one side wall insertion of the rack is provided with sensing device, and the sensing device includes sensing
Device and the second battery, the sensor are connect with the second battery by conducting wire, and the bottom of the rack is fixedly connected with
Vibrator bar is equipped with vibrating motor on the right side of the rack, and the lower end of the vibrating motor is fixedly connected with connecting plate, described
The bottom of connecting plate is fixedly connected with the upper surface of vibrator bar.
Preferably, card slot is offered on the lateral wall of the rack, the sensor is connected in card slot, the sensing
The side of device is provided with protective fence, and the protective fence is fixedly connected with sensor.
Preferably, the lower end of the vibrator bar slidably connects sliding slot, and the bottom of the sliding slot is fixedly connected with testing stand,
The both ends of the sliding slot are fixedly connected with block, and the bottom end of the block is fixedly connected with the upper surface of testing stand.
Preferably, baffle is provided on the left of the rack, the bottom of the baffle and the upper surface of testing stand are fixed
Connection.
Preferably, the bottom of the rack is welded with link block, and the rack and vibrator bar are fixed by link block
Connection.
Preferably, the vibrator bar is provided with two groups, and two groups of vibrator bars are symmetrically distributed in the upper surface of testing stand.
Preferably, the rack is provided with two groups, and rack is in " spill " shape.
Preferably, the Corner Strapped of the testing stand pedestal is connected with non-slip mat.
Compared with prior art, the beneficial effects of the present invention are:
1, this kind of efficient bridge structure fatigue experimental device, upper end face of support plate are fixedly connected with non-destructive testing dress
It sets, non-destructive testing device includes that probe and defectoscope, one end of probe are connect with defectoscope by conducting wire, the lateral wall of defectoscope
It is electrically connected with signal output, during the test, the probe in non-destructive testing device can be to being placed on rack
Experimental subjects is detected, the loosening situation of probe detection bridge structure, while the signal output on defectoscope lateral wall will
The data of detection are effectively exported, and it is more acurrate to subjects progress to facilitate staff by setting non-destructive testing device
Data acquisition, improve experimental test efficiency.
2, the one side wall insertion of this kind of efficient bridge structure fatigue experimental device, rack is provided with sensing device,
Sensing device includes sensor and the second battery, during carrying out bridge structure fatigue experimental device, experimental subjects quilt
It is shelved on rack enterprising line number time simulation test, sensing device is during being tested to bridge structure antidetonation testing fatigue
Data are acquired, and sensor is by continual data acquisition for several times, so that staff is able to carry out sufficient data note
Record comparison, while a large amount of record data improve the accuracy of experimental test.
3, this kind of efficient bridge structure fatigue experimental device, the bottom of rack are fixedly connected with vibrator bar, vibration
The lower end of item slidably connects sliding slot, and the bottom of sliding slot is fixedly connected with testing stand, and the bridge structure tested, which is placed on, puts
It sets on frame, for the vibrator bar under rack by the drive of vibrating motor, vibrator bar slidably reciprocates inside sliding slot realizes that simulation is surveyed
Examination, by the cooperation of vibrator bar and sliding slot, solves the problems, such as that existing large test equipment testing efficiency is low, improves
The test efficiency of bridge structure fatigue test.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the structural schematic diagram of vibrator bar of the present invention；
Fig. 3 is the structural schematic diagram of non-destructive testing device of the present invention；
Fig. 4 is the structural schematic diagram of sensing device of the present invention.
In figure, 1, testing stand；11, non-slip mat；2, vibrating motor；21, connecting plate；3, baffle；4, support plate；5, lossless inspection
Survey device；51, it pops one's head in；52, defectoscope；53, signal output；54, the first battery；6, rack；61, card slot；62, it protects
Column；63, link block；7, sensing device；71, sensor；72, the second battery；8, vibrator bar；9, sliding slot；91, block.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In the description of the present invention, it is to be understood that, term " length ", " width ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention
System.In addition, in the description of the present invention, the meaning of " plurality " is two or more, unless otherwise specifically defined.
The model of Instrumental of the present invention are as follows:
The model of vibrating motor 2 are as follows: YJDX-2.5-2；
The model of defectoscope 52 are as follows: WX-2003；
The model of sensor 71 are as follows: PT124B-2521.
Fig. 1-4 is please referred to, the present invention provides a kind of technical solution: a kind of efficient bridge structure fatigue experimental device,
Including testing stand 1, the upper surface of testing stand 1 is connected with rack 6, and the side of rack 6 is provided with support plate 4, support
The bottom of plate 4 is fixedly connected with the upper surface of testing stand 1, and 4 upper surface of support plate is fixedly connected with non-destructive testing device 5, lossless
Detection device 5 includes probe 51 and defectoscope 52, and 51 one end of popping one's head in is connect with defectoscope 52 by conducting wire, defectoscope 52 outside
Side wall is electrically connected with signal output 53, and the bottom of defectoscope 52 is connected with the first battery 54, the first electric power storage by conducting wire
The bottom in pond 54 is fixedly connected with support plate 4, and during the test, probe 51 can effectively detect subjects,
Defectoscope 52 exports the data detected by signal output 53, and staff can be collected test data and right
Than to improve the accuracy of test, the one side wall insertion of rack 6 is provided with sensing device 7, and sensing device 7 includes passing
Sensor 71 and the second battery 72, sensor 71 are connect with the second battery 72 by conducting wire, the sensor 71 in sensing device 7
It is able to carry out Test Data Collecting during the experiment, by largely acquiring test data, staff is able to carry out test number
According to comparison, the bottom of rack 6 is fixedly connected with vibrator bar 8, and the right side of rack 6 is provided with vibrating motor 2, vibrating motor 2
Lower end be fixedly connected with connecting plate 21, the bottom of connecting plate 21 is fixedly connected with the upper surface of vibrator bar 8, in vibrating motor 2
Drive under, be fixed on 2 lower end of vibrating motor connecting plate 21 drive vibrator bar 8 progress slidably reciprocate in sliding slot 9, effectively
The fatigue process of bridge structure is simulated, ensure that the accuracy of test data.
Preferably, card slot 61 is offered on the lateral wall of rack 6, sensor 71 is connected in card slot 61, sensor 71
Side be provided with protective fence 62, protective fence 62 is fixedly connected with card slot 61, and rack 6 carries out under the drive of vibrating motor 2
Movement, for the stabilization of guarantee test data and accurate, card slot 61 can effectively consolidate sensor 71, so that in the process of test
Middle sensor 71 is not fallen out, and protective fence 62 has further consolidated the stabilization of sensor 71, passes through setting card slot 61 and protective fence
62, sensor 71 is consolidated, to improve the accuracy of test, the lower end of vibrator bar 8 slidably connects sliding slot 9, sliding slot 9
Bottom is fixedly connected with testing stand 1, and the both ends of sliding slot 9 are fixedly connected with block 91, the bottom end of block 91 and the upper end of testing stand 1
Face is fixedly connected, and rack 6 is moved back and forth under the drive of vibrator bar 8, when vibrator bar 8 moves back and forth in sliding slot 9, is
It avoids vibrator bar 8 from skidding off from sliding slot 9, block 91 is needed to be stopped, sliding block 91 ensure that vibrator bar 8 in sliding slot 9 just
Often sliding, the left side of rack 6 are provided with baffle 3, and the bottom of baffle 3 is fixedly connected with the upper surface of testing stand 1, rack 6
On experimental subjects during being tested due to being vibrated the vibration of item 8, so mistake can occur with rack 6
Position, thus be arranged in the left side of rack 6 baffle 3 can guarantee test object will not be fallen from rack 6, ensure that test
Integrality, the bottom of rack 6 is welded with link block 63, and rack 6 is fixedly connected with vibrator bar 8 by link block 63,
When carrying out testing experiment, link block 63 can be realized the close connection of vibrator bar 8 Yu rack 6, place during test
Frame 6 can be moved synchronously along with the movement of vibrator bar 8, improve the accuracy of test, and vibrator bar 8 is provided with two groups, and
Two groups of vibrator bars 8 are symmetrically distributed in the upper surface of testing stand 1, vibrator bar 8 under the drive of vibrating motor 2 inside sliding slot 9 into
Row slidably reciprocates, and two groups of symmetrical vibrator bars 8 can more accurately simulate bridge structure in the current status of real traffic, mentions
The high accuracy of test data, rack 6 is provided with two groups, and rack 6 is in " spill " shape, during the test, test
Whether object is firm to directly influence test data, so that test result is inaccurate, therefore subjects need peace to be stabilized
It sets, the rack 6 of the placement subjects that two groups of racks 6 can be stable, " spill " shape makes experimental subjects in test process
In it is more firm, to improve the accuracy of the test data of test, the Corner Strapped of 1 pedestal of testing stand is connected with non-slip mat
11, testing stand 1 would generally generate violent shaking during being tested, for the integrality and test of guarantee test process
As a result accuracy stabilizes testing stand 1, alleviates testing stand 1 by the way that non-slip mat 11 is arranged in the pedestal quadrangle of testing stand 1
Rock, ensure that test smoothly carry out.
The working principle of the invention and process for using: firstly, subjects are placed on the rack 6 of " spill " shape,
It determines and opens vibrating motor 2 after subjects placement is firm, under the drive of vibrating motor 2,21 lower end of connecting plate is fixedly connected
Vibrator bar 8 start to carry out sliding back and forth in sliding slot 9, the block 91 that 9 both ends of sliding slot are arranged in can effectively stop to shake
Dynamic item 8 is slidably reciprocated inside sliding slot 9 without skidding off out of sliding slot 9, while it is right that the sensor 71 inside card slot 61 is arranged in
Data monitoring and collection, the great number tested data that staff collects according to sensor 71 are carried out to subjects during test
Test comparison is carried out, the accuracy of test is improved, again, during the test, the lossless inspection that is fixedly connected in support plate 4
The 51 pairs of experimental subjects of probe surveyed in device 5 detect, and then the data detected are passed through signal output by defectoscope 52
53 are exported, and the data that staff exports signal output 53 are collected, and are closed after the test by control switch
Vibrating motor 2 is closed, vibrating motor 2 stops working, and vibrator bar 8 stops working therewith, and staff is by subjects from rack 6
On remove, non-destructive testing device 5 and the test data collected of sensing device 7 is compared in staff, so analyze examination
Data are tested, obtain test result, by setting non-destructive testing device 5 and sensing device 7, improve the efficiency of experimental test, together
When also improve the accuracy of test data, ensure that the accuracy of test result.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.
Claims (8)
1. a kind of efficient bridge structure fatigue experimental device, including testing stand (1), it is characterised in that: the testing stand (1)
Upper surface be connected with rack (6), the side of the rack (6) is provided with support plate (4), the support plate (4)
Bottom be fixedly connected with the upper surface of testing stand (1), support plate (4) upper surface is fixedly connected with non-destructive testing device
(5), the non-destructive testing device (5) includes probe (51) and defectoscope (52), one end of the probe (51) and defectoscope
(52) it is connected by conducting wire, the lateral wall of the defectoscope (52) is electrically connected with signal output (53), the defectoscope
(52) bottom is connected with the first battery (54) by conducting wire, and the bottom and support plate (4) of first battery (54) are solid
The one side wall insertion of fixed connection, the rack (6) is provided with sensing device (7), and the sensing device (7) includes sensor
(71) it is connect with the second battery (72) by conducting wire with the second battery (72), the sensor (71), the rack (6)
Bottom be fixedly connected with vibrator bar (8), vibrating motor (2), the vibrating motor are installed on the right side of the rack (6)
(2) lower end is fixedly connected with connecting plate (21), the fixed company in the bottom of the connecting plate (21) and the upper surface of vibrator bar (8)
It connects.
2. a kind of efficient bridge structure fatigue experimental device according to claim 1, it is characterised in that: the placement
It is offered on the lateral wall of frame (6) card slot (61), the sensor (71) is connected in card slot (61), the sensor (71)
Side is provided with protective fence (62), and the protective fence (62) is fixedly connected with card slot (61).
3. a kind of efficient bridge structure fatigue experimental device according to claim 1, it is characterised in that: the vibration
The lower end of item (8) slidably connects sliding slot (9), and the bottom of the sliding slot (9) is fixedly connected with testing stand (1), the sliding slot (9)
Both ends be fixedly connected with block (91), the bottom end of the block (91) is fixedly connected with the upper surface of testing stand (1).
4. a kind of efficient bridge structure fatigue experimental device according to claim 1, it is characterised in that: the placement
It is provided on the left of frame (6) baffle (3), the bottom of the baffle (3) is fixedly connected with the upper surface of testing stand (1).
5. a kind of efficient bridge structure fatigue experimental device according to claim 1, it is characterised in that: the placement
The bottom of frame (6) is welded with link block (63), and the rack (6) is fixedly connected with vibrator bar (8) by link block (63).
6. a kind of efficient bridge structure fatigue experimental device according to claim 1, it is characterised in that: the vibration
Item (8) is provided with two groups, and two groups of vibrator bars (8) are symmetrically distributed in the upper surface of testing stand (1).
7. a kind of efficient bridge structure fatigue experimental device according to claim 1, it is characterised in that: the placement
Frame (6) is provided with two groups, and rack (6) is in " spill " shape.
8. a kind of efficient bridge structure fatigue experimental device according to claim 1, it is characterised in that: the test
The Corner Strapped of platform (1) pedestal is connected with non-slip mat (11).
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| CN201811145912.2A CN108931348B (en) | 2018-09-29 | 2018-09-29 | Efficient bridge structures fatigue test device |
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| CN201811145912.2A CN108931348B (en) | 2018-09-29 | 2018-09-29 | Efficient bridge structures fatigue test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008498A (en) * | 2021-02-25 | 2021-06-22 | 佛山科学技术学院 | Parameter vibration experimental device |
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| 赵博: "" 钢桥正交异性桥面系横隔板疲劳性能研究"", 《中国博士学位论文全文数据库 工程科技Ⅱ辑 》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008498A (en) * | 2021-02-25 | 2021-06-22 | 佛山科学技术学院 | Parameter vibration experimental device |
| CN113008498B (en) * | 2021-02-25 | 2023-01-31 | 佛山科学技术学院 | Parameter vibration experimental device |
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