CN109556813A - A kind of transverse vibrational displacement detection device of foot bridge - Google Patents
A kind of transverse vibrational displacement detection device of foot bridge Download PDFInfo
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- CN109556813A CN109556813A CN201811527803.7A CN201811527803A CN109556813A CN 109556813 A CN109556813 A CN 109556813A CN 201811527803 A CN201811527803 A CN 201811527803A CN 109556813 A CN109556813 A CN 109556813A
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- fixedly connected
- foot bridge
- displacement detection
- detection device
- vibrational displacement
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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
Abstract
The invention discloses a kind of transverse vibrational displacement detection devices of foot bridge, including support baseboard and foot bridge, one end that transmission vertical bar is located at outside outer support platform is rotatably connected to adjustment motion bar, laser calibration transmitter is fixedly connected with close to the position on right side at the top of adjustment motion bar, the right side of outer support platform outer tip end and calibration receiver is fixedly connected with the symmetrical position of laser calibration transmitter, left side inside adjustment motion bar is fixedly connected with the vertical chute, upper and lower ends inside the vertical chute slidably connect vertical inner slide, underdrive connecting rod, which is located at outside the vertical chute, is rotatably connected to drive lead screw on the inside of one end, the present invention relates to civil construction, traffic civil engineering construction technique field.The transverse vibrational displacement detection device of the foot bridge has reached accuracy fixed between foot bridge and detector, reduces bindiny mechanism to the error of testing result, improves the preciseness of research process, guarantee the real effectiveness of data, convenient for the purpose of data acquisition.
Description
Technical field
The present invention relates to civil construction, traffic civil engineering construction technique field, the oscillation crosswise positions of specially a kind of foot bridge
Move detection device.
Background technique
The research of the vertical motion coupled in the past about pedestrian with bridge has a small amount of document report, but pedestrian and bridge are horizontal
Research to coupled vibrations is seldom.Macdonald, S.P.Carrol, M.Bocian regard pedestrian as a linear inverted pendulum mould
The variation of type, the parameters such as quality, damping, active force when to pedestrian, bridge lateral coupled vibrations is studied, and is ground at these
Most of vibratory responses for being not concerned with pedestrian in studying carefully, emphasis are the vibratory responses for studying foot bridge.Some scholars are gone in research
When people, bridge coupled vibrations, not studying the decoupling work of pedestrian, bridge coupled system, but by foot bridge
Vibration is thought of as a shake table, and vibration amplitude and frequency it is assumed that a definite value, such view are less reasonable.Cause
It is interactional for pedestrian, bridge lateral vibratory response, and if when weak coupling, by the amplitude and frequency of foot bridge
It is reasonable that rate, which is assumed to some constant value, but when pedestrian's lateral oscillation frequency is consistent with bridge lateral vibration frequency or
When person is close, the coupled vibrations between pedestrian and bridge belongs to close coupling, influences each other between the two very big, simply by foot bridge
Vibration amplitude and frequency are thought of as a definite value, can not reflect pedestrian, Modular Bridge System resonance effects, assume to close not to the utmost in this way
Reason.
It needs to measure the transverse vibrational displacement of foot bridge in pedestrian and the research of bridge lateral interaction mechanism, measures at present
The transverse vibrational displacement of foot bridge is only detected to unilateral, testing result do not have it is comparative, cannot utmostly lowering apparatus
Error caused by detection itself is unfavorable for the collection record of data, while the preciseness of result of study is low.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of transverse vibrational displacement detection devices of foot bridge, solve
The transverse vibrational displacement of current measurement foot bridge is only detected to unilateral, and testing result does not have comparative, is unable to maximum journey
Lowering apparatus error caused by detection itself is spent, is unfavorable for the collection record of data, while the preciseness of result of study is low
Problem.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of oscillation crosswise position of foot bridge
Detection device, including support baseboard and foot bridge are moved, the middle position at the top of the support baseboard is rotatably connected to internal screw thread biography
Elevating screw thread bar is run through and be threaded in the inside of lever, the internal screw thread drive rod, and the elevating screw thread bar is far from interior spiral shell
Support column is fixedly connected at the axle center of line drive rod one end, the top of the support column is fixedly connected with outer support platform, described
Position inside outer support platform close to left side is fixedly connected with transmission inside groove, and the bottom end of the transmission inner tank interior is fixedly connected with
Interior rail, the top slide of the interior rail are connected with interior sliding motion block, are fixedly connected at the top of the interior sliding motion block
There is transmission vertical bar, the transmission vertical bar runs through and extend to the outside of outer support platform, and the transmission vertical bar is located at outside outer support platform
The one end in portion is rotatably connected to adjustment motion bar, and the position on close right side is fixedly connected with laser school at the top of the adjustment motion bar
Quasi- transmitter, the right side of the outer support platform outer tip end and is fixedly connected with calibration with the symmetrical position of laser calibration transmitter
Receiver, the left side adjusted inside motion bar are fixedly connected with the vertical chute, the upper and lower ends inside the vertical chute
Slidably connect vertical inner slide, the vertical inner slide close to external side be respectively fixedly connected with kinematic link and
Underdrive connecting rod, the underdrive connecting rod, which is located at outside the vertical chute, is rotatably connected to drive lead screw on the inside of one end.
Preferably, the surface of the upper kinematic link and it is fixedly connected with restricted set block with the symmetrical position of drive lead screw,
The top of the drive lead screw is run through and is threadedly coupled with limitation set block.
Preferably, the top of the drive lead screw is fixedly connected with joystick, the upper kinematic link and underdrive connecting rod
Fixed clamping bar is fixedly connected to close to external one end.
Preferably, the side of the fixed clamping bar is correspondingly arranged with foot bridge.
Preferably, the surface on the transmission inner tank interior top is uniform and is equidistantly fixedly connected with photoemitter, institute
It states the right side at the top of interior sliding motion block and is fixedly connected with optoelectronic position receiver.
Preferably, the top outside the outer support platform and be located at calibration receiver on the right side of be fixedly connected with control electricity
Brain.
Preferably, the middle position of the interior sliding motion block bottom end is fixedly connected with bottom sliding slot, the bottom sliding slot and interior cunning
Top of the rail is slidably connected, and the middle position inside the bottom sliding slot is fixedly connected with pressure sensor.
Preferably, the position at the top of the support baseboard close to outside is fixedly connected with motor, the motor it is defeated
Active runner is fixedly connected on shaft.
Preferably, the internal screw thread drive rod is fixedly connected with driven runner, the driven runner close to the position of lower section
It is sequentially connected by belt and active runner.
Preferably, the output end of the photoemitter is connect with optoelectronic position receiver, the optoelectronic position receiver
Output end connect with control computer, the output end of the pressure sensor is connect with computer is controlled.
(3) beneficial effect
The present invention provides a kind of transverse vibrational displacement detection devices of foot bridge.Have it is following the utility model has the advantages that
(1), the transverse vibrational displacement detection device of the foot bridge, is powered by motor and is rotated, and motor passes through belt
Internal screw thread drive rod rotation is driven, internal screw thread drive rod drives the lifting of elevating screw thread bar, to adjust fixed clamping bar and foot bridge
Top two sides level is fixed, and joystick, joystick and limitation set block screw-driven is rotated manually, so that fixed clamping bar and foot bridge
Fixed, whether observation calibration receiver can receive the signal of laser calibration transmitter sending, and calibration receiver can receive sharp
When optical signal, illustrate that adjusting motion bar and foot bridge is in horizontality, when laser signal cannot be received by calibrating receiver,
Foot bridge and detection are reached until elevating screw thread bar can receive signal by rotation joystick and control motor adjustment
Fixed accuracy between device reduces bindiny mechanism to the purpose of the error of testing result.
(2), the transverse vibrational displacement detection device of the foot bridge, by the way that in detection process, the horizontal swing of foot bridge is logical
It crosses fixed clamping bar and drives adjustment motion bar movement, adjustment motion bar drives interior sliding motion block on interior rail by transmission vertical bar
Sliding, the numerical value of pressure sensor induction pressure, pressure sensor transmit a signal to control computer, are drawn according to control computer
Pressue-graph out, understanding horizontal swing power, internally whether sliding motion block generates pressure, if generating pressure, shows foot bridge
It does not measure up with the lateral connection of device, to be adjusted again to device, until the pressue-graph that control computer is drawn out is
Straight line, the horizontal swing of foot bridge drives interior sliding motion block to slide on interior rail, so that optoelectronic position receiver receives light
The signal that electric transmitter issues, so that optoelectronic position receiver transmits a signal to control computer, control computer draws out vibration
The curve graph of displacement has reached the preciseness for improving research process, has guaranteed the real effectiveness of data, convenient for the mesh of data acquisition
's.
Detailed description of the invention
Fig. 1 is the whole structural schematic diagram of the present invention；
Fig. 2 is the structural schematic diagram of outer support platform of the present invention；
Fig. 3 is the structural schematic diagram at A of the present invention；
Fig. 4 is the bottom view of sliding motion block in the present invention；
Fig. 5 is the structural block diagram of sensing element of the present invention.
In figure: 1 support baseboard, 2 internal screw thread drive rods, 3 elevating screw thread bars, 4 support columns, 5 outer support platforms, 6 transmission inside grooves,
Rail, 8 belts, 9 interior sliding motion blocks, 10 transmission vertical bars, 11 adjustment motion bars, 12 laser calibration transmitters, 13 calibrations connect in 7
Receive device, 14 the vertical chutes, 15 vertical inner slides, kinematic link on 16,17 underdrive connecting rods, 18 drive lead screws, 19 limitation set blocks,
20 joysticks, 21 fixed clamping bars, 22 foot bridges, 23 photoemitters, 24 optoelectronic position receivers, 25 control computers, 26 bottoms are sliding
Slot, 27 pressure sensors, 28 motor, 29 active runners, 30 driven runners.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-5 is please referred to, the present invention provides a kind of technical solution: a kind of transverse vibrational displacement detection device of foot bridge,
Including support baseboard 1 and foot bridge 22, the middle position at 1 top of support baseboard is rotatably connected to internal screw thread drive rod 2, internal screw thread
Run through and be threaded with elevating screw thread bar 3, axis of the elevating screw thread bar 3 far from 2 one end of internal screw thread drive rod in the inside of drive rod 2
Support column 4 is fixedly connected at the heart, the top of support column 4 is fixedly connected with outer support platform 5, and 5 inside of outer support platform is close to left side
Position be fixedly connected with transmission inside groove 6, be driven inside groove 6 inside bottom end be fixedly connected with interior rail 7, interior rail 7
Top slide is connected with interior sliding motion block 9, and the top of interior sliding motion block 9 is fixedly connected with transmission vertical bar 10, and transmission vertical bar 10 passes through
The outside of outer support platform 5 is worn and extends to, one end that transmission vertical bar 10 is located at outside outer support platform 5 is rotatably connected to adjustment activity
Bar 11,11 top of adjustment motion bar are fixedly connected with laser calibration transmitter 12 close to the position on right side, push up outside outer support platform 5
The right side at end and with the symmetrical position of laser calibration transmitter 12 be fixedly connected with calibration receiver 13, adjust motion bar 11 inside
Left side be fixedly connected with the vertical chute 14, the upper and lower ends inside the vertical chute 14 slidably connect vertical inner slide 15,
Vertical inner slide 15 has been respectively fixedly connected with kinematic link 16 and underdrive connecting rod 17, underdrive connecting rod close to external side
17 are rotatably connected to drive lead screw 18 on the inside of 14 outside one end of the vertical chute.The surface of upper kinematic link 16 and with transmission
The symmetrical position of screw rod 18 is fixedly connected with restricted set block 19, and the top of drive lead screw 18 runs through with limitation set block 19 and screw thread connects
It connects.The top of drive lead screw 18 is fixedly connected with joystick 20, upper kinematic link 16 and underdrive connecting rod 17 close to external one
End is fixedly connected to fixed clamping bar 21.The side of fixed clamping bar 21 is correspondingly arranged with foot bridge 22.It is driven 6 inner tip of inside groove
Surface uniformly and be equidistantly fixedly connected with photoemitter 23, the right side at interior 9 top of sliding motion block is fixedly connected with photoelectricity
Position receiver 24.Top outside outer support platform 5 and the right side for being located at calibration receiver 13 are fixedly connected with control computer 25.
The middle position of interior sliding 9 bottom end of motion block is fixedly connected with bottom sliding slot 26, and bottom sliding slot 26 is connect with interior 7 top slide of rail,
Middle position inside bottom sliding slot 26 is fixedly connected with pressure sensor 27.1 top of support baseboard is fixed close to the position in outside
It is connected with motor 28, active runner 29 is fixedly connected on the output shaft of motor 28.Internal screw thread drive rod 2 is close to lower section
Position is fixedly connected with driven runner 30, and driven runner 30 is sequentially connected by belt 8 and active runner 29.Photoemitter 23
Output end connect with optoelectronic position receiver 24, the output end of optoelectronic position receiver 24 is connect with control computer 25, pressure
The output end of sensor 27 is connect with control computer 25.
It is rotated in use, being powered by motor 28, motor 28 drives internal screw thread drive rod 2 to rotate by belt 8, interior
Threaded drive rod 2 drives elevating screw thread bar 3 to go up and down, and fixes to adjust fixed clamping bar 21 with 22 top two sides level of foot bridge,
Rotation joystick 20 manually, joystick 20 and limitation set 19 screw-driven of block are seen so that fixed clamping bar 21 is fixed with foot bridge 22
Examine whether calibration receiver 13 can receive the signal of the sending of laser calibration transmitter 12, calibration receiver 13 can receive laser
When signal, illustrate that adjusting motion bar 11 and foot bridge 22 is in horizontality, when calibration receiver 13 cannot receive laser letter
Number when, adjusted by rotation joystick 20 and control motor 28, until elevating screw thread bar 3 can receive signal, reached people
Fixed accuracy between row bridge and detector reduces bindiny mechanism to the purpose of the error of testing result.Pass through detection process
In, the horizontal swing of foot bridge 22 passes through fixed clamping bar 21 and drives adjustment motion bar 11 mobile, and adjustment motion bar 11 passes through transmission
Vertical bar 10 drives interior sliding motion block 9 to slide on interior rail 7, the numerical value of 27 induction pressure of pressure sensor, pressure sensor
27 transmit a signal to control computer 25, according to the pressue-graph that control computer 25 is drawn out, whether understand horizontal swing power
Internally sliding motion block 9 generates pressure, if generating pressure, shows that the lateral connection of foot bridge and device does not measure up, thus right
Device is adjusted again, in the pressue-graph that control computer 25 is drawn out is straight line, and the horizontal swing of foot bridge 22 drives
Sliding motion block 9 slides on interior rail 7, so that 24 optoelectronic position receivers receive the signal that photoemitter 23 issues, from
And optoelectronic position receiver 24 transmits a signal to control computer 25, control computer 25 draws out the curve graph of vibration displacement, reaches
The preciseness for improving research process has been arrived, has guaranteed the real effectiveness of data, convenient for the purpose of data acquisition.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions.By sentence " element limited including one ..., it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element ".
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of transverse vibrational displacement detection device of foot bridge, including support baseboard (1) and foot bridge (22), feature exists
In: the middle position at the top of the support baseboard (1) is rotatably connected to internal screw thread drive rod (2), the internal screw thread drive rod (2)
Inside run through and be threaded with elevating screw thread bar (3), the elevating screw thread bar (3) is far from internal screw thread drive rod (2) one end
Axle center at be fixedly connected with support column (4), the top of the support column (4) is fixedly connected with outer support platform (5), the outer branch
The internal position close to left side of support platform (5) is fixedly connected with transmission inside groove (6), and the internal bottom end of transmission inside groove (6) is fixed
It is connected with interior rail (7), the top slide of the interior rail (7) is connected with interior sliding motion block (9), the interior sliding motion block
(9) transmission vertical bar (10) is fixedly connected at the top of, transmission vertical bar (10) runs through and extends to the outer of outer support platform (5)
Portion, transmission vertical bar (10) are located at the external one end of outer support platform (5) and are rotatably connected to adjustment motion bar (11), the adjustment
Position at the top of motion bar (11) close to right side is fixedly connected with laser calibration transmitter (12), and the outer support platform (5) is external
The right side on top and calibration receiver (13), the adjustment work are fixedly connected with the symmetrical position of laser calibration transmitter (12)
The internal left side of lever (11) is fixedly connected with the vertical chute (14), and the internal upper and lower ends of the vertical chute (14) are slided
It is connected with vertical inner slide (15), the vertical inner slide (15) has been respectively fixedly connected with kinematic link close to external side
(16) and underdrive connecting rod (17), the underdrive connecting rod (17) are located at the inside rotation connection of the external one end of the vertical chute (14)
There are drive lead screw (18).
2. a kind of transverse vibrational displacement detection device of foot bridge according to claim 1, it is characterised in that: the upload
It moves the surface of connecting rod (16) and is fixedly connected with restricted set block (19), the drive lead screw with the symmetrical position of drive lead screw (18)
(18) top is run through and is threadedly coupled with limitation set block (19).
3. a kind of transverse vibrational displacement detection device of foot bridge according to claim 2, it is characterised in that: the transmission
The top of screw rod (18) is fixedly connected with joystick (20), and the upper kinematic link (16) and underdrive connecting rod (17) are close to external
One end be fixedly connected to fixed clamping bar (21).
4. a kind of transverse vibrational displacement detection device of foot bridge according to claim 3, it is characterised in that: the fixation
The side of clamping bar (21) is correspondingly arranged with foot bridge (22).
5. a kind of transverse vibrational displacement detection device of foot bridge according to claim 1, it is characterised in that: the transmission
The surface of inside groove (6) inner tip is uniform and is equidistantly fixedly connected with photoemitter (23), interior sliding motion block (9) top
Optoelectronic position receiver (24) are fixedly connected on the right side of portion.
6. a kind of transverse vibrational displacement detection device of foot bridge according to claim 5, it is characterised in that: the outer branch
It supports platform (5) external top and is located on the right side of calibration receiver (13) and be fixedly connected with control computer (25).
7. a kind of transverse vibrational displacement detection device of foot bridge according to claim 1, it is characterised in that: the interior cunning
The middle position of movable block (9) bottom end is fixedly connected with bottom sliding slot (26), sliding at the top of the bottom sliding slot (26) and interior rail (7)
Dynamic connection, the internal middle position of the bottom sliding slot (26) are fixedly connected with pressure sensor (27).
8. a kind of transverse vibrational displacement detection device of foot bridge according to claim 1, it is characterised in that: the support
Position at the top of bottom plate (1) close to outside is fixedly connected with motor (28), fixed on the output shaft of the motor (28) to connect
It is connected to active runner (29).
9. a kind of transverse vibrational displacement detection device of foot bridge according to claim 1, it is characterised in that: the interior spiral shell
Line drive rod (2) is fixedly connected with driven runner (30) close to the position of lower section, the driven runner (30) by belt (8) with
Active runner (29) transmission connection.
10. a kind of transverse vibrational displacement detection device of foot bridge according to claim 6, it is characterised in that: the light
The output end of electric transmitter (23) is connect with optoelectronic position receiver (24), the output end of the optoelectronic position receiver (24) with
Computer (25) connection is controlled, the output end of the pressure sensor (27) is connect with control computer (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811527803.7A CN109556813B (en) | 2018-12-13 | 2018-12-13 | Transverse vibration displacement detection device of foot bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811527803.7A CN109556813B (en) | 2018-12-13 | 2018-12-13 | Transverse vibration displacement detection device of foot bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109556813A true CN109556813A (en) | 2019-04-02 |
| CN109556813B CN109556813B (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811527803.7A Active CN109556813B (en) | 2018-12-13 | 2018-12-13 | Transverse vibration displacement detection device of foot bridge |
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| CN203616153U (en) * | 2013-12-11 | 2014-05-28 | 中南大学 | Dynamic simulation test system for safe operation of train in earthquake |
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| CN105067212A (en) * | 2015-09-19 | 2015-11-18 | 福州大学 | Pile head fixed end pile-soil dynamic interaction vibration table test device and construction method thereof |
| CN105507145A (en) * | 2016-01-08 | 2016-04-20 | 长安大学 | Bridge detection device |
| CN106404330A (en) * | 2016-08-31 | 2017-02-15 | 上海交通大学 | Bridge structure dynamics testing device |
| CN207528224U (en) * | 2017-10-21 | 2018-06-22 | 孙亚君 | A kind of bridge pier tilt detecting device |
| CN208059808U (en) * | 2018-05-09 | 2018-11-06 | 上海神尹重工机械设备有限公司 | A kind of bridge machine arch measurer |
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2018
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100722173B1 (en) * | 2006-10-17 | 2007-05-28 | 주식회사 삼림엔지니어링 | Safety diagnosis apparatus for transformation measurement of breadth course in bridge |
| CN103698140A (en) * | 2013-12-11 | 2014-04-02 | 中南大学 | Dynamic simulation test system for ensuring running safety of train on railway bridge under earthquake |
| CN203616153U (en) * | 2013-12-11 | 2014-05-28 | 中南大学 | Dynamic simulation test system for safe operation of train in earthquake |
| CN104568355A (en) * | 2015-02-02 | 2015-04-29 | 中南大学 | Vehicle-bridge coupling shaking test device with annular rail |
| CN105067212A (en) * | 2015-09-19 | 2015-11-18 | 福州大学 | Pile head fixed end pile-soil dynamic interaction vibration table test device and construction method thereof |
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