CN103245329B - Device and method for testing gradient and oscillation of cable-stayed bridge tower - Google Patents
Device and method for testing gradient and oscillation of cable-stayed bridge tower Download PDFInfo
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- CN103245329B CN103245329B CN201310143406.0A CN201310143406A CN103245329B CN 103245329 B CN103245329 B CN 103245329B CN 201310143406 A CN201310143406 A CN 201310143406A CN 103245329 B CN103245329 B CN 103245329B
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Abstract
The invention discloses a device and a method for testing gradient and oscillation of a cable-stayed bridge tower. The device comprises a cable tower oscillation test laser emission device I, a cable tower oscillation test laser emission device II, a cable tower oscillation target spot device I and a cable power oscillation target spot device II. The device is characterized in that the cable tower oscillation test laser emission device I and the cable tower oscillation test laser emission device II are respectively arranged at the upstream side and the downstream side of a cable-stayed bridge bearing platform. The cable tower oscillation target spot device I and the cable power oscillation target spot device II are respectively arranged on the side surface of the upstream of the top and the side surface of the downstream of the middle of a cable-stayed bridge cable tower. The device has the characteristics of large measuring range, high precision, good resolution, reliability in working, convenience in operation and the like, is capable of carrying out continuous testing in an all-weather manner and outputting test data in real time, and provides novel instrument and equipment for testing the gradient and the oscillation of the cable-stayed bridge tower.
Description
Technical field
The present invention relates to a kind of instrument and method of testing Cable-stayed Bridge Pylon degree of tilt and swing, specifically a kind of Cable-stayed Bridge Pylon degree of tilt and rocking test device and method of testing thereof.
Background technology
At present, the degree of tilt of Cable-stayed Bridge Pylon tested by normal employing transit, and adopt vibration pick-up etc. to carry out the swing of Cable-stayed Bridge Pylon, but those instrument and equipments also exist and can not be chronically exposed to field, degree of tilt and the swing of Cable-stayed Bridge Pylon can not be recorded simultaneously, the deficiency of the aspects such as monitor signal can not be exported continuously in real time.
Summary of the invention
For existing test Cable-stayed Bridge Pylon degree of tilt and the deficiency swinging instrument and equipment, the present invention proposes a kind of Cable-stayed Bridge Pylon degree of tilt and rocking test device and method of testing thereof, it can round-the-clockly be monitored uninterruptedly, exports the data of Cable-stayed Bridge Pylon degree of tilt and swing in real time.
Technical solution problem of the present invention adopts following technical scheme:
A kind of Cable-stayed Bridge Pylon degree of tilt and rocking test device, include Sarasota rocking test laser beam emitting device I, Sarasota rocking test laser beam emitting device II, Sarasota bobbing target point apparatus I, Sarasota bobbing target point apparatus II, it is characterized in that: the upstream side on cable-stayed bridge cushion cap is mounted with frame I, frame I is provided with test canopy I, in test canopy I, is mounted with described Sarasota rocking test laser beam emitting device I, downstream on cable-stayed bridge cushion cap is mounted with frame II, frame II is provided with test canopy II, is mounted with described Sarasota rocking test laser beam emitting device II in test canopy II, the ceiling of described test canopy I, test canopy II all there is skylight, the upstream side at Cable-stayed Bridge Pylon top is provided with support I, support I is provided with rain shade I, in rain shade I, be mounted with described Sarasota bobbing target point apparatus I, downstream side in the middle part of Cable-stayed Bridge Pylon is provided with support II, support II is provided with rain shade II, in rain shade II, be mounted with described Sarasota bobbing target point apparatus II, the base plate of described rain shade I, rain shade II all there is ground window, described support I is positioned at Sarasota along on the same vertical guide in bridge central axis direction with the center line of frame I, and described support II is positioned at Sarasota along on the same vertical guide in bridge central axis direction with the center line of frame II, described Sarasota rocking test laser beam emitting device I base is rectangle, on this base, located side by side has Sarasota rocking test generating laser a, Sarasota rocking test generating laser b, described Sarasota rocking test laser beam emitting device II base is rectangle, on this base, located side by side has Sarasota rocking test generating laser c, Sarasota rocking test generating laser d, described Sarasota bobbing target point apparatus I support is rectangle, this support there are two square through holes side by side, these two through holes are mounted with separately Sarasota and swing target spot device a, Sarasota swings target spot device b, and Sarasota swings center line and the bridge centerline parallel of target spot device a, Sarasota swings center line and the bridge central axis of target spot device b, described Sarasota bobbing target point apparatus II support is rectangle, this support there are two square through holes side by side, these two through holes are mounted with separately Sarasota and swing target spot device c, Sarasota swings target spot device d, and Sarasota swings center line and the bridge centerline parallel of target spot device c, Sarasota swings center line and the bridge central axis of target spot device d, the Sarasota rocking test generating laser a of described Sarasota rocking test laser beam emitting device I is by testing the skylight of canopy I, and pass through the ground window of rain shade I, the Sarasota aiming at Sarasota bobbing target point apparatus I swings target spot device a Emission Lasers, carries out Sarasota top and tilts along bridge central axis direction and the test swung, the Sarasota rocking test generating laser b of described Sarasota rocking test laser beam emitting device I is by testing the skylight of canopy I, and pass through the ground window of rain shade I, the Sarasota aiming at Sarasota bobbing target point apparatus I swings target spot device b Emission Lasers, carries out Sarasota top and tilts and the test swung along bridge centerline direction, the Sarasota rocking test generating laser c of described Sarasota rocking test laser beam emitting device II is by testing the skylight of canopy II, and pass through the ground window of rain shade II, the Sarasota aiming at Sarasota bobbing target point apparatus II swings target spot device c Emission Lasers, carries out tilting along bridge central axis direction and the test swung in the middle part of Sarasota, the Sarasota rocking test generating laser d of described Sarasota rocking test laser beam emitting device II is by testing the skylight of canopy II, and pass through the ground window of rain shade II, the Sarasota aiming at Sarasota bobbing target point apparatus II swings target spot device d Emission Lasers, carries out tilting and the test swung along bridge centerline direction in the middle part of Sarasota.
Described Sarasota rocking test laser beam emitting device I, Sarasota rocking test laser beam emitting device II structure are identical, and namely described Sarasota rocking test generating laser a, Sarasota rocking test generating laser b, Sarasota rocking test generating laser c, Sarasota rocking test generating laser d are Sarasota rocking test generating laser of the same race; Described Sarasota rocking test generating laser base plate is square, this base plate is mounted with laser direction regulator, laser direction regulator is mounted with generating laser, transfer the direction knob of described laser direction regulator, the laser that generating laser can be allowed upwards to launch moves in the two-dimensional direction, screw the stop knob of described laser direction regulator, generating laser can be made to brake.
Described Sarasota bobbing target point apparatus I, the structure of Sarasota bobbing target point apparatus II are identical, and namely described Sarasota swings target spot device a, Sarasota swings target spot device b, Sarasota swings target spot device c, Sarasota swing target spot device d is that Sarasota of the same race swings target spot device; It is square box shape that described Sarasota swings target spot device device seat, and this device seat base plate has square through hole, this through hole studs with dust-proof plane light-transmission plate, the lower portion in device seat is mounted with optical fiber target spot device, and the upper position in device seat is mounted with two-dimensional wiggle sensor; Described two-dimensional wiggle sensor device box is square box shape, this device box swings on the relative inwall of target spot device center line along Sarasota and is mounted with cantilever slab, magneto sensor respectively, the plate end of cantilever slab is mounted with magnet piece, this magnet piece and magneto sensor have the spacing of δ, fill silicone oil in device box, define closed test chamber; The plate face of described cantilever slab is vertical, when Sarasota is perpendicular to described cantilever slab plate axis oscillating, cantilever slab can produce swing, and the magnet piece of cantilever slab plate end switches the magnetic line of force on magneto sensor back and forth, and magneto sensor exports the transducing signal that Sarasota swings the amplitude of oscillation and frequency; Described Sarasota swings the optical fiber target spot device of target spot device, the center line of two-dimensional wiggle sensor, is all positioned at Sarasota and swings on the same vertical guide of target spot device center line, and the light transmitting filament of described optical fiber target spot device is facing to the dust-proof plane light-transmission plate of below.
Described optical fiber target spot device substrate is square flat board, middle part equidistant parallel on this substrate is mounted with the light transmitting filament row of many light transmitting filament compositions, be provided with every light film between every root light transmitting filament of this light transmitting filament row, light transmitting filament row two ends on substrate are respectively arranged with light activated element row a, light activated element row b, in row's shell of light activated element row a, light activated element row b, all located side by side has the light activated element of row, the light activated element that light transmitting filament one side end and light activated element arrange a, light activated element arranges b, in staggered ends mode, is connected by described light transmitting filament; The laser sent when described Sarasota rocking test generating laser is irradiated on any light transmitting filament of optical fiber target spot device, and light conduction is given corresponding light activated element by this root light transmitting filament, and light activated element just exports transducing signal.
A method of testing for Cable-stayed Bridge Pylon degree of tilt and rocking test device, carry out according to the following steps successively:
(1) mounting bracket I in the upstream side at Sarasota top, mounting bracket II in downstream side in the middle part of Sarasota, and rain shade I, rain shade II is set up respectively on support I, support II, frame I is set up at the upstream side of Sarasota cushion cap, set up frame II in the downstream of Sarasota cushion cap, and in frame I, frame II, set up survey test canopy I, test canopy II respectively;
(2) Sarasota bobbing target point apparatus I is placed on the support I in Sarasota top rain shade I, and the Sarasota of Sarasota bobbing target point apparatus I swings target spot device a center line and bridge centerline parallel, Sarasota swings target spot device b center line and bridge central axis, Sarasota bobbing target point apparatus II is placed on the support II in the middle part of Sarasota in rain shade II, and the Sarasota of Sarasota bobbing target point apparatus II swings target spot device c center line and bridge centerline parallel, Sarasota swings target spot device d center line and bridge central axis; Sarasota rocking test laser beam emitting device I is placed in the frame I in Sarasota cushion cap upstream side test canopy, Sarasota rocking test laser beam emitting device II is placed in the frame II in Sarasota cushion cap downstream test canopy II;
(3), after the cable of Sarasota bobbing target point device a, Sarasota swing target spot device b, Sarasota swing target spot device c, Sarasota swing target spot device d, Sarasota rocking test generating laser a, Sarasota rocking test generating laser b, Sarasota rocking test generating laser c, Sarasota rocking test generating laser d being connected with swing monitor with Sarasota degree of tilt, the power switch opening instrument and equipment carries out on-line debugging;
(4) test canopy I skylight in frame I and rain shade I ground window on support I is opened, the generating laser of Sarasota rocking test generating laser a is swung target spot device a towards Sarasota, the display of monitor is swung depending on Sarasota, direction knob on adjustment Sarasota rocking test generating laser a, after the laser alignment optical fiber target spot device a that generating laser sends, screw the stop knob on Sarasota rocking test generating laser a, this generating laser is braked, and the generating laser of Sarasota rocking test generating laser b is swung target spot device b towards Sarasota, the display of monitor is swung depending on Sarasota, direction knob on adjustment Sarasota rocking test generating laser b, after the laser alignment optical fiber target spot device b that generating laser sends, screw the stop knob on Sarasota rocking test generating laser b, this generating laser is braked,
Open test canopy II skylight in frame II and rain shade II ground window on support II, the generating laser of Sarasota rocking test generating laser c is swung target spot device c towards Sarasota, the display of monitor is swung depending on Sarasota, direction knob on adjustment Sarasota rocking test generating laser c, after the laser alignment optical fiber target spot device c that generating laser sends, screw the stop knob on Sarasota rocking test generating laser c, this generating laser is braked; And the generating laser of Sarasota rocking test generating laser d is swung target spot device d towards Sarasota, the display of monitor is swung depending on Sarasota, direction knob on adjustment Sarasota rocking test generating laser d, after the laser alignment optical fiber target spot device d that generating laser sends, screw the stop knob on Sarasota rocking test generating laser d, this generating laser is braked;
(5) measure Sarasota rocking test generating laser a and swing target spot device a, Sarasota rocking test generating laser b to Sarasota swing target spot device b, Sarasota rocking test generating laser c to Sarasota swing target spot device c, Sarasota rocking test generating laser d to the vertical distance of Sarasota swing target spot device d to Sarasota;
(6) tower top of Sarasota, two positions at middle part can just be carried out in the test of centrally line, centrally line vertical direction updip gradient and swing.
Cable-stayed Bridge Pylon degree of tilt of the present invention and rocking test device are based on following principle of work: under the effect that the Sarasota of cable-stayed bridge to carry etc. at natural frequency, girder load, wind, meeting run-off the straight and swing, now by the Sarasota rocking test generating laser a in the frame I of Sarasota cushion cap upstream side, swing target spot device a Emission Lasers to the Sarasota on Sarasota head upstream side stand I, test Sarasota top along the inclination in bridge central axis direction and swing; By the Sarasota rocking test generating laser b in the frame I of Sarasota cushion cap upstream side, swing target spot device b Emission Lasers to the Sarasota on Sarasota head upstream side stand I, test Sarasota top along the inclination of bridge centerline direction and swing; By the Sarasota rocking test generating laser c in the frame II in Sarasota cushion cap downstream, the Sarasota in the middle part of Sarasota on downstream support II swings target spot device c Emission Lasers, tests in the middle part of Sarasota along the inclination in bridge central axis direction and swing; By the Sarasota rocking test generating laser d in the frame II in Sarasota cushion cap downstream, the Sarasota in the middle part of Sarasota on downstream support II swings target spot device d Emission Lasers, tests in the middle part of Sarasota along the inclination of bridge centerline direction and swing.Because Sarasota rocking test generating laser a, Sarasota rocking test generating laser b, Sarasota rocking test generating laser c, the structure of Sarasota rocking test generating laser d, function are identical, so adopt Sarasota rocking test generating laser of the same race, and Sarasota swings target spot device a, Sarasota swings target spot device b, Sarasota swings target spot device c, the structure of Sarasota swing target spot device d, function are also identical, so adopt Sarasota of the same race to swing target spot device.During test, be placed in Sarasota rocking test laser transmitter projects in cushion cap frame and go out relatively fixed laser, be irradiated to the optical fiber target spot device that Sarasota swings target spot device, this optical fiber target spot device is irradiated to the light transmitting filament of light, light conduction is given on corresponding light activated element, is transferred out the signal of sensing by this light activated element.Because of the swing of Sarasota, the light transmitting filament vertical direction that the laser spots that Sarasota rocking test laser transmitter projects goes out swings target spot device optical fiber target spot device along Sarasota moves around, the light transmitting filament be irradiated to light transmission on corresponding light activated element, record the distance of two light transmitting filaments of spaced furthest like this, just the Sarasota amplitude of oscillation in the direction in which can be obtained, and test out each amplitude of oscillation interlude, just can obtain the frequency that Sarasota swings in the direction in which.Because Sarasota swings target spot device a, Sarasota swing target spot device c center line by the arrangement with bridge centerline parallel, namely the optical fiber target spot device light transmitting filament that Sarasota swings target spot device a, Sarasota swings target spot device c is along the arrangement of bridge centerline parallel direction, so Sarasota swings target spot device a, Sarasota swings target spot device c and can record the top of Sarasota, middle part respectively along the swing in bridge central axis direction; Again because Sarasota swings target spot device b, Sarasota swing target spot device d center line by the arrangement with bridge central axis, namely the optical fiber target spot device light transmitting filament that Sarasota swings target spot device b, Sarasota swings target spot device d is along the arrangement of bridge central axis direction, so Sarasota swings target spot device b, Sarasota swings target spot device d and can record the top of Sarasota, middle part respectively along the swing of bridge centerline direction.In addition, the vertical distance that Sarasota rocking test generating laser generating laser to Sarasota swings target spot device optical fiber target spot device is recorded with measurement equipment, if this vertical range is y, set again the distance of two light transmitting filaments being irradiated with a laser spaced furthest as x, then recording Sarasota degree of tilt is in the direction in which θ, θ=arctgx/y.
Simultaneously, swing target spot device a, Sarasota swing target spot device b at Sarasota, Sarasota swings target spot device c, Sarasota swings in target spot device d and is provided with auxiliary two-dimensional wiggle sensor separately, Sarasota is swung target spot device a, cantilever slab plate axis that Sarasota swings the two-dimensional wiggle sensor of target spot device c arranges with bridge centerline parallel, and Sarasota swing target spot device b, the cantilever slab plate axis of two-dimensional wiggle sensor of Sarasota swing target spot device d and bridge central axis are arranged.Transversal section due to those cantilever slabs is rectangular thin plate, its plate hight is little more than the size that plate is wide, namely the rigidity of cantilever slab in plate hight direction is little more than the rigidity of plate width direction, so when Sarasota swings, plate axes normal can produce distortion in the cantilever slab of Sarasota swaying direction and swing under inertial force effect, the magnet piece of cantilever slab plate end, swing along with the swing of cantilever slab, switch and the magnetic line of force on the magneto sensor of magnet piece interval delta distance, the transducing signal that magneto sensor exports is with magnetic line of force Strength Changes size.The amplitude of oscillation of Sarasota is obtained, according to the frequency obtaining Sarasota swing the interval time of twice maximum amplitude of oscillation according to the size of magneto sensor output transducing signal.So the cantilever slab of two-dimensional wiggle sensor can record Sarasota along bridge center line, the amplitude swung along bridge central axis direction and frequency.
Compared with the prior art, beneficial effect of the present invention is embodied in:
A kind of Cable-stayed Bridge Pylon degree of tilt and rocking test device that the present invention proposes and method of testing thereof, it can monitor cable-stayed bridge in construction, run, the behavioral characteristics of Sarasota in maintenance, guarantee the safety of cable-stayed bridge.This tester has that range is large, precision is high, good resolution, reliable operation, the feature such as easy to operate, round-the-clockly can test continuously, outputs test data in real time, for the degree of tilt and swing of testing Cable-stayed Bridge Pylon provides new instrument equipment.
Accompanying drawing explanation
Fig. 1 is Cable-stayed Bridge Pylon degree of tilt of the present invention and rocking test device work front elevational schematic.
Fig. 2 is Cable-stayed Bridge Pylon degree of tilt of the present invention and the left schematic side view of rocking test device work.
Fig. 3 is Cable-stayed Bridge Pylon degree of tilt of the present invention and the right schematic side view of rocking test device work.
Fig. 4 is the positive sectional structure schematic diagram of Sarasota rocking test laser beam emitting device I of the present invention.
Fig. 5 is the left side sectional structure schematic diagram of Sarasota rocking test laser beam emitting device I of the present invention.
Fig. 6 is the sectional structure schematic diagram of bowing of Sarasota rocking test laser beam emitting device I of the present invention.
Fig. 7 is the positive sectional structure schematic diagram of Sarasota bobbing target point apparatus I of the present invention.
Fig. 8 is that the Sarasota of Sarasota bobbing target point apparatus I of the present invention swings sectional structure schematic diagram on the left of target spot device a.
Fig. 9 is that the Sarasota of Sarasota bobbing target point apparatus I of the present invention swings sectional structure schematic diagram on the left of target spot device b.
Figure 10 is that the two-dimensional wiggle sensor layer of Sarasota bobbing target point apparatus I of the present invention is bowed sectional structure schematic diagram.
Figure 11 is that the optical fiber target spot device layer of Sarasota bobbing target point apparatus I of the present invention is bowed sectional structure schematic diagram.
Figure 12 is sectional structure schematic diagram on front side of optical fiber target spot device of the present invention.
Figure 13 is sectional structure schematic diagram on the left of optical fiber target spot device of the present invention.
Figure 14 is that optical fiber target spot device of the present invention is bowed sectional structure schematic diagram.
Number in the figure: 1 cable-stayed bridge, 2 Sarasotas, 3 drag-lines, 4 girders, 5 cushion caps, 6 pile foundations, 7 face, riverbeds, 8 peak levels, 9 frames I, 10 frames II, 11 test canopies I, 12 test canopies II, 13 skylights, 14 supports I, 15 supports II, 16 rain shades I, 17 rain shades II, 18 ground windows, 19 Sarasota rocking test laser beam emitting devices I or Sarasota rocking test laser beam emitting device II, 20 bases, 21 Sarasota rocking test generating laser a or Sarasota rocking test generating laser c, 22 Sarasota rocking test generating laser b or Sarasota rocking test generating laser d, 23 laser direction regulators, 24 base plates, 25 generating lasers, 26 direction knobs, 27 stop knobs, 28 Sarasota bobbing target point apparatus I or Sarasota bobbing target point apparatus II, 29 supports, 30 Sarasotas swing target spot device a or Sarasota swings target spot device c, 31 Sarasotas swing target spot device b or Sarasota swings target spot device d, 32 device seats, 33 dust-proof plane light-transmission plates, 34 two-dimensional wiggle sensors, 35 device boxes, 36 cantilever slabs, 37 magnet pieces, 38 magneto sensors, 39 silicone oil, 40 cases, 41 optical fiber target spot devices, 42 substrates, 43 light transmitting filaments, 44 every light film, 45 light activated element row a, 46 light activated element row b, 47 row's shells, 48 light activated elements.
Embodiment
See Fig. 1 ~ Figure 14, for a kind of Cable-stayed Bridge Pylon degree of tilt of the present invention and rocking test device, include Sarasota rocking test laser beam emitting device I or Sarasota rocking test laser beam emitting device II 19, Sarasota bobbing target point apparatus I or Sarasota bobbing target point apparatus II 28, it is characterized in that: the upstream side on cable-stayed bridge 1 cushion cap 5 is mounted with frame I 9, frame I 9 is provided with test canopy I 11, in test canopy I 11, is mounted with described Sarasota rocking test laser beam emitting device I 19.Downstream on cable-stayed bridge 1 cushion cap 5 is mounted with frame II 10, frame II 10 is provided with test canopy II 12, is mounted with described Sarasota rocking test laser beam emitting device II 19 in test canopy II 12.The ceiling of described test canopy I 11, test canopy II 12 all there is skylight 13.The upstream side at cable-stayed bridge 1 Sarasota 2 top is provided with support I 14, support I 14 is provided with rain shade I 16, in rain shade I 16, be mounted with described Sarasota bobbing target point apparatus I 28.Downstream side in the middle part of cable-stayed bridge 1 Sarasota 2 is provided with support II 15, support II 15 is provided with rain shade II 17, in rain shade II 17, be mounted with described Sarasota bobbing target point apparatus II 28.The base plate of described rain shade I 16, rain shade II 17 all there is ground window 18.
Described support I 14 is positioned at Sarasota 2 along on the same vertical guide in bridge central axis direction with the center line of frame I 9, and described support II 15 is positioned at Sarasota 2 along on the same vertical guide in bridge central axis direction with the center line of frame II 10.Described Sarasota rocking test laser beam emitting device I 19 base 20 is rectangle, on this base 20, located side by side has Sarasota rocking test generating laser a21, Sarasota rocking test generating laser b22, described Sarasota rocking test laser beam emitting device II 19 base 20 is rectangle, and on this base 20, located side by side has Sarasota rocking test generating laser c21, Sarasota rocking test generating laser d22; Described Sarasota bobbing target point apparatus I 28 support 29 is rectangle, this support 29 there are two square through holes side by side, these two through holes are mounted with separately Sarasota and swing target spot device a30, Sarasota swing target spot device b31, and Sarasota swings center line and the bridge centerline parallel of target spot device a30, Sarasota swings center line and the bridge central axis of target spot device b31; Described Sarasota bobbing target point apparatus II 28 support 29 is rectangle, this support 29 there are two square through holes side by side, these two through holes are mounted with separately Sarasota and swing target spot device c30, Sarasota swing target spot device d31, and Sarasota swings center line and the bridge centerline parallel of target spot device c30, Sarasota swings center line and the bridge central axis of target spot device d31.The Sarasota rocking test generating laser a21 of described Sarasota rocking test laser beam emitting device I 19 is by testing the skylight 13 of canopy I 11, and pass through the ground window 18 of rain shade I 16, the Sarasota aiming at Sarasota bobbing target point apparatus I 28 swings target spot device a30 Emission Lasers, carries out Sarasota 2 top and tilts along bridge central axis direction and the test swung; The Sarasota rocking test generating laser b22 of described Sarasota rocking test laser beam emitting device I 19 is by testing the skylight 13 of canopy I 11, and pass through the ground window 18 of rain shade I 16, the Sarasota aiming at Sarasota bobbing target point apparatus I 28 swings target spot device b31 Emission Lasers, carries out Sarasota 2 top and tilts and the test swung along bridge centerline direction; The Sarasota rocking test generating laser c21 of described Sarasota rocking test laser beam emitting device II 19 is by testing the skylight 13 of canopy II 12, and pass through the ground window 18 of rain shade II 17, the Sarasota aiming at Sarasota bobbing target point apparatus II 28 swings target spot device c30 Emission Lasers, carries out tilting along bridge central axis direction and the test swung in the middle part of Sarasota 2; The Sarasota rocking test generating laser d22 of described Sarasota rocking test laser beam emitting device II 19 is by testing the skylight 13 of canopy II 12, and pass through the ground window 18 of rain shade II 17, the Sarasota aiming at Sarasota bobbing target point apparatus II 28 swings target spot device d31 Emission Lasers, carries out tilting and the test swung along bridge centerline direction in the middle part of Sarasota 2.
Sarasota rocking test laser beam emitting device I, Sarasota rocking test laser beam emitting device II 19 structure are identical, and namely described Sarasota rocking test generating laser a21, Sarasota rocking test generating laser b22, Sarasota rocking test generating laser c21, Sarasota rocking test generating laser d22 are Sarasota rocking test generating laser of the same race.Described Sarasota rocking test generating laser base plate 24 is square, this base plate 24 is mounted with laser direction regulator 23, laser direction regulator 23 is mounted with generating laser 25, transfer the direction knob 26 of described laser direction regulator 23, the laser that generating laser 25 can be allowed upwards to launch moves in the two-dimensional direction, screw the stop knob 27 of described laser direction regulator 23, generating laser 25 can be made to brake.
The structure of Sarasota bobbing target point apparatus I, Sarasota bobbing target point apparatus II 28 is identical, and namely described Sarasota swings target spot device a30, Sarasota swings target spot device b31, Sarasota swings target spot device c30, Sarasota swing target spot device d31 is that Sarasota of the same race swings target spot device.It is square box shape that described Sarasota swings target spot device device seat 32, this device seat 32 base plate there is square through hole, this through hole studs with dust-proof plane light-transmission plate 33, lower portion in device seat 32 is mounted with optical fiber target spot device 41, upper position in device seat 32 is mounted with two-dimensional wiggle sensor 34, described two-dimensional wiggle sensor 34 device box 35 is square box shape, this device box 35 swings on the relative inwall of target spot device center line along Sarasota and is mounted with cantilever slab 36 respectively, magneto sensor 38, the plate end of cantilever slab 36 is mounted with magnet piece 37, this magnet piece 37 and magneto sensor 38 have the spacing of δ, silicone oil 39 is filled in device box 35, define closed test chamber.The plate face of described cantilever slab 36 is vertical, when Sarasota 2 is perpendicular to described cantilever slab 36 plate axis oscillating, cantilever slab 36 can produce swing, the magnet piece 37 of cantilever slab 36 plate end switches the magnetic line of force on magneto sensor 38 back and forth, and magneto sensor 38 exports the transducing signal that Sarasota 2 swings the amplitude of oscillation and frequency.Described Sarasota swings the optical fiber target spot device 41 of target spot device, the center line of two-dimensional wiggle sensor 34, all being positioned at Sarasota swings on the same vertical guide of target spot device center line, and the light transmitting filament 43 of described optical fiber target spot device 41 is facing to the dust-proof plane light-transmission plate 33 of below.
Described optical fiber target spot device 41 substrate 42 is square flat board, middle part equidistant parallel on this substrate 42 is mounted with the light transmitting filament row that many light transmitting filaments 43 form, be provided with every light film 44 between every root light transmitting filament 43 of this light transmitting filament row, light transmitting filament 43 on substrate 42 is arranged two ends and is respectively arranged with light activated element row a45, light activated element row b46, light activated element row a45, in row's shell 47 of light activated element row b46, all located side by side has the light activated element 48 of row, described light transmitting filament 43 is in staggered ends mode, light transmitting filament 43 1 side end and light activated element are arranged a45, the light activated element 48 of light activated element row b46 connects.The laser sent when described Sarasota rocking test generating laser is irradiated on any light transmitting filament 43 of optical fiber target spot device 41, and light conduction is given corresponding light activated element 48 by this root light transmitting filament 43, and light activated element 48 just exports transducing signal.
A method of testing for Cable-stayed Bridge Pylon degree of tilt and rocking test device, carry out according to the following steps successively:
(1) mounting bracket I 14 in the upstream side at Sarasota 2 top, mounting bracket II 15 in the downstream side in the middle part of Sarasota, and rain shade I 16, rain shade II 17 is set up respectively on support I 14, support II 15.Set up frame I 9 at the upstream side of Sarasota 2 cushion cap 5, set up frame II 10 in the downstream of Sarasota 2 cushion cap 5, and in frame I 9, frame II 10, set up survey test canopy I 11, test canopy II 12 respectively;
(2) Sarasota bobbing target point apparatus I 28 is placed on the support I 14 in Sarasota 2 top rain shade I 16, and the Sarasota of Sarasota bobbing target point apparatus I 28 swings target spot device a30 center line and bridge centerline parallel, Sarasota swings target spot device b31 center line and bridge central axis.Sarasota bobbing target point apparatus II 28 is placed on the support II 15 in the middle part of Sarasota 2 in rain shade II 17, and the Sarasota of Sarasota bobbing target point apparatus II 28 swings target spot device c30 center line and bridge centerline parallel, Sarasota swings target spot device d31 center line and bridge central axis;
Sarasota rocking test laser beam emitting device I 19 is placed in the frame I 9 in Sarasota 2 cushion cap 5 upstream side test canopy, Sarasota rocking test laser beam emitting device II 19 is placed in the frame II 10 in Sarasota cushion cap downstream test canopy II 12;
(3), after the cable of Sarasota bobbing target point device a30, Sarasota swing target spot device b31, Sarasota swing target spot device c30, Sarasota swing target spot device d31, Sarasota rocking test generating laser a21, Sarasota rocking test generating laser b22, Sarasota rocking test generating laser c21, Sarasota rocking test generating laser d22 being connected with swing monitor with Sarasota degree of tilt, the power switch opening instrument and equipment carries out on-line debugging;
(4) test canopy I 11 skylight 13 in frame I 9 and rain shade I 16 ground window 18 on support I 14 is opened, the generating laser 25 of Sarasota rocking test generating laser a21 is swung target spot device a30 towards Sarasota, the display of monitor is swung depending on Sarasota, direction knob 26 on adjustment Sarasota rocking test generating laser a21, after the laser alignment optical fiber target spot device a30 that generating laser 25 sends, screw the stop knob 27 on Sarasota rocking test generating laser a21, this generating laser 25 is braked.And the generating laser 25 of Sarasota rocking test generating laser b22 is swung target spot device b31 towards Sarasota, the display of monitor is swung depending on Sarasota, direction knob 26 on adjustment Sarasota rocking test generating laser b22, after the laser alignment optical fiber target spot device b31 that generating laser 25 sends, screw the stop knob 27 on Sarasota rocking test generating laser b22, this generating laser 25 is braked;
Open test canopy II 12 skylight 13 in frame II 10 and rain shade II 17 ground window 18 on support II 15, the generating laser 25 of Sarasota rocking test generating laser c21 is swung target spot device c30 towards Sarasota, the display of monitor is swung depending on Sarasota, direction knob 26 on adjustment Sarasota rocking test generating laser c21, after the laser alignment optical fiber target spot device c30 that generating laser 25 sends, screw the stop knob 27 on Sarasota rocking test generating laser c21, this generating laser 25 is braked.And the generating laser 25 of Sarasota rocking test generating laser d22 is swung target spot device d31 towards Sarasota, the display of monitor is swung depending on Sarasota, direction knob 26 on adjustment Sarasota rocking test generating laser d22, after the laser alignment optical fiber target spot device d31 that generating laser 25 sends, screw the stop knob 27 on Sarasota rocking test generating laser d22, this generating laser 25 is braked;
(5) measure Sarasota rocking test generating laser a21 and swing target spot device a30, Sarasota rocking test generating laser b22 to Sarasota swing target spot device b31, Sarasota rocking test generating laser c21 to Sarasota swing target spot device c30, Sarasota rocking test generating laser d22 to the vertical distance of Sarasota swing target spot device d31 to Sarasota;
(6) tower top of Sarasota 2, position, two, middle part can just be carried out in the test of centrally line, centrally line vertical direction updip gradient and swing.
Cable-stayed bridge 1 is a kind of bridge of large span; Sarasota 2 is hanging cables, bears the structure of girder load; Drag-line 3 bears and transmits girder load to Sarasota 2; Girder 4 is bridge span structures; Cushion cap 5 is bases of Sarasota; The effect of pile foundation 6 is bases of cable-stayed bridge 1; Face, riverbed 7 is the bottom surfaces in river; Peak level 8 is the highest water levels flooded in river; The effect of frame I 9 is on cushion cap 5, settle Sarasota rocking test laser beam emitting device I 19; The effect of frame II 10 is on cushion cap 5, settle Sarasota rocking test laser beam emitting device II 19; The effect of test canopy I 11 becalms to Sarasota rocking test laser beam emitting device I 19 to take shelter from rain, and operating space; The effect of test canopy II 12 becalms to Sarasota rocking test laser beam emitting device II 19 to take shelter from rain, and operating space; The effect in skylight 13 allows the laser directive Sarasota bobbing target point apparatus I of Sarasota rocking test laser beam emitting device I or Sarasota rocking test laser beam emitting device II 19 or Sarasota bobbing target point apparatus II 28; The effect of support I 14 is on Sarasota 5, settle Sarasota bobbing target point apparatus I 28; The effect of support II 15 is on Sarasota 5, settle Sarasota bobbing target point apparatus II 28; The effect of rain shade I 16 becalms to Sarasota bobbing target point apparatus I 28 to take shelter from rain; The effect of rain shade II 17 becalms to Sarasota bobbing target point apparatus II 28 to take shelter from rain; The effect of ground window 18 is that the laser allowing Sarasota rocking test laser beam emitting device I or Sarasota rocking test laser beam emitting device II 19 send to be mapped on Sarasota bobbing target point apparatus I or Sarasota bobbing target point apparatus II 28; Sarasota rocking test generating laser a21, Sarasota rocking test generating laser b22 or Sarasota rocking test generating laser c21, Sarasota rocking test generating laser d22 are settled in the effect of Sarasota rocking test laser beam emitting device I or Sarasota rocking test laser beam emitting device II 19; The effect of base 20 is on support I 14 or support II 15, settle Sarasota rocking test generating laser a21, Sarasota rocking test generating laser b22 or Sarasota rocking test generating laser c21, Sarasota rocking test generating laser d22; The effect of Sarasota rocking test generating laser a21 swings target spot device a30 to Sarasota to launch the laser detected; The effect of Sarasota rocking test generating laser b22 swings target spot device b31 to Sarasota to launch the laser detected; Generating laser 25 is settled in the effect of laser direction regulator 23, and transfers, brakes generating laser 25; Laser direction regulator 23 is settled in the effect of base plate 24; The laser detected is launched in the effect of generating laser 25; The effect of direction knob 26 is the directions of transferring generating laser 25; The effect of stop knob 27 allows generating laser 25 brake; The effect of Sarasota bobbing target point apparatus I or Sarasota bobbing target point apparatus II 28 settles Sarasota to swing target spot device a30, Sarasota swing target spot device b31 or Sarasota to swing target spot device c30, Sarasota swing target spot device d31; The effect of support 29 settles Sarasota to swing target spot device a30, Sarasota swing target spot device b31 or Sarasota to swing target spot device c30, Sarasota swing target spot device d31; The effect that Sarasota swings target spot device a or Sarasota swing target spot device c30 is the upstream at sensing Sarasota 2 top or middle part or the signal of downstream inclination and swing; Sarasota swing riverbank that effect that target spot device b or Sarasota swing target spot device d31 is sensing Sarasota 5 top or middle part or riverbed roll tiltedly with the signal swung; Two-dimensional wiggle sensor 34, optical fiber target spot device 41 are settled in the effect of device seat 32; The effect of dust-proof plane light-transmission plate 33 is plane light-transmissions and dust-proof; The effect of two-dimensional wiggle sensor 34 be test Sarasota 5 upstream or the sensing that swings of downstream, riverbank or direction, riverbed; Cantilever slab 36 and magneto sensor 38 are settled in the effect of device box 35, and form the test chamber closed; The effect of cantilever slab 36 be sensing Sarasota 5 in upstream, downstream or riverbed, direction, riverbank swing; The effect of magnet piece 37 is sensing sources, for magneto sensor 38 provides the magnetic line of force; The effect of magneto sensor 38 is when cantilever slab 36 swings, and receives the magnetic line of force that magnet piece 37 switches, converts this magnetic signal to electric signal; The effect of silicone oil 39 is the shakes reducing cantilever slab 36; The effect of case 40 is protection two-dimensional wiggle sensor 34, optical fiber target spot device 41; The effect of optical fiber target spot device 41 is sensors of receiving optical signals, the distance of energy testing light source movement; The effect of substrate 42 settles light transmitting filament 43, every light film 44, light activated element row a45, light activated element row b46, row's shell 47; The effect of light transmitting filament 43 is receiving optical signals, light signal transduction to light activated element 48; Effect every light film 44 allows every root light transmitting filament 43 not disturb conducting light; The effect of light activated element row a45 is that light activated element 48 is settled in column; The effect of light activated element row b46 is that light activated element 48 is settled in column; The effect of row's shell 47 is protection light activated elements 48; The effect of light activated element 48 is that light signal is converted to electric signal.
Claims (5)
1. a Cable-stayed Bridge Pylon degree of tilt and rocking test device, include Sarasota rocking test laser beam emitting device I, Sarasota rocking test laser beam emitting device II, Sarasota bobbing target point apparatus I, Sarasota bobbing target point apparatus II, it is characterized in that: the upstream side on cable-stayed bridge cushion cap is mounted with frame I, frame I is provided with test canopy I, in test canopy I, is mounted with described Sarasota rocking test laser beam emitting device I, downstream on cable-stayed bridge cushion cap is mounted with frame II, frame II is provided with test canopy II, is mounted with described Sarasota rocking test laser beam emitting device II in test canopy II, the ceiling of described test canopy I, test canopy II all there is skylight, the upstream side at Cable-stayed Bridge Pylon top is provided with support I, support I is provided with rain shade I, in rain shade I, be mounted with described Sarasota bobbing target point apparatus I, downstream side in the middle part of Cable-stayed Bridge Pylon is provided with support II, support II is provided with rain shade II, in rain shade II, be mounted with described Sarasota bobbing target point apparatus II, the base plate of described rain shade I, rain shade II all there is ground window, described support I is positioned at Sarasota along on the same vertical guide in bridge central axis direction with the center line of frame I, and described support II is positioned at Sarasota along on the same vertical guide in bridge central axis direction with the center line of frame II, described Sarasota rocking test laser beam emitting device I base is rectangle, on this base, located side by side has Sarasota rocking test generating laser a, Sarasota rocking test generating laser b, described Sarasota rocking test laser beam emitting device II base is rectangle, on this base, located side by side has Sarasota rocking test generating laser c, Sarasota rocking test generating laser d, described Sarasota bobbing target point apparatus I support is rectangle, this support there are two square through holes side by side, these two through holes are mounted with separately Sarasota and swing target spot device a, Sarasota swings target spot device b, and Sarasota swings center line and the bridge centerline parallel of target spot device a, Sarasota swings center line and the bridge central axis of target spot device b, described Sarasota bobbing target point apparatus II support is rectangle, this support there are two square through holes side by side, these two through holes are mounted with separately Sarasota and swing target spot device c, Sarasota swings target spot device d, and Sarasota swings center line and the bridge centerline parallel of target spot device c, Sarasota swings center line and the bridge central axis of target spot device d, the Sarasota rocking test generating laser a of described Sarasota rocking test laser beam emitting device I is by testing the skylight of canopy I, and pass through the ground window of rain shade I, the Sarasota aiming at Sarasota bobbing target point apparatus I swings target spot device a Emission Lasers, carries out Sarasota top and tilts along bridge central axis direction and the test swung, the Sarasota rocking test generating laser b of described Sarasota rocking test laser beam emitting device I is by testing the skylight of canopy I, and pass through the ground window of rain shade I, the Sarasota aiming at Sarasota bobbing target point apparatus I swings target spot device b Emission Lasers, carries out Sarasota top and tilts and the test swung along bridge centerline direction, the Sarasota rocking test generating laser c of described Sarasota rocking test laser beam emitting device II is by testing the skylight of canopy II, and pass through the ground window of rain shade II, the Sarasota aiming at Sarasota bobbing target point apparatus II swings target spot device c Emission Lasers, carries out tilting along bridge central axis direction and the test swung in the middle part of Sarasota, the Sarasota rocking test generating laser d of described Sarasota rocking test laser beam emitting device II is by testing the skylight of canopy II, and pass through the ground window of rain shade II, the Sarasota aiming at Sarasota bobbing target point apparatus II swings target spot device d Emission Lasers, carries out tilting and the test swung along bridge centerline direction in the middle part of Sarasota.
2. Cable-stayed Bridge Pylon degree of tilt according to claim 1 and rocking test device, it is characterized in that: described Sarasota rocking test laser beam emitting device I, Sarasota rocking test laser beam emitting device II structure are identical, namely described Sarasota rocking test generating laser a, Sarasota rocking test generating laser b, Sarasota rocking test generating laser c, Sarasota rocking test generating laser d are Sarasota rocking test generating laser of the same race; Described Sarasota rocking test generating laser base plate is square, this base plate is mounted with laser direction regulator, laser direction regulator is mounted with generating laser, transfer the direction knob of described laser direction regulator, the laser that generating laser can be allowed upwards to launch moves in the two-dimensional direction, screw the stop knob of described laser direction regulator, generating laser can be made to brake.
3. Cable-stayed Bridge Pylon degree of tilt according to claim 1 and rocking test device, it is characterized in that: described Sarasota bobbing target point apparatus I, the structure of Sarasota bobbing target point apparatus II are identical, namely described Sarasota swings target spot device a, Sarasota swing target spot device b, Sarasota swings target spot device c, Sarasota swing target spot device d is that Sarasota of the same race swings target spot device; It is square box shape that described Sarasota swings target spot device device seat, and this device seat base plate has square through hole, this through hole studs with dust-proof plane light-transmission plate, the lower portion in device seat is mounted with optical fiber target spot device, and the upper position in device seat is mounted with two-dimensional wiggle sensor; Described two-dimensional wiggle sensor device box is square box shape, this device box swings on the relative inwall of target spot device center line along Sarasota and is mounted with cantilever slab, magneto sensor respectively, the plate end of cantilever slab is mounted with magnet piece, this magnet piece and magneto sensor have the spacing of δ, fill silicone oil in device box, define closed test chamber; The plate face of described cantilever slab is vertical, when Sarasota is perpendicular to described cantilever slab plate axis oscillating, cantilever slab can produce swing, and the magnet piece of cantilever slab plate end switches the magnetic line of force on magneto sensor back and forth, and magneto sensor exports the transducing signal that Sarasota swings the amplitude of oscillation and frequency; Described Sarasota swings the optical fiber target spot device of target spot device, the center line of two-dimensional wiggle sensor, is all positioned at Sarasota and swings on the same vertical guide of target spot device center line, and the light transmitting filament of described optical fiber target spot device is facing to the dust-proof plane light-transmission plate of below.
4. Cable-stayed Bridge Pylon degree of tilt according to claim 3 and rocking test device, it is characterized in that: described optical fiber target spot device substrate is square flat board, middle part equidistant parallel on this substrate is mounted with the light transmitting filament row of many light transmitting filament compositions, be provided with every light film between every root light transmitting filament of this light transmitting filament row, light transmitting filament row two ends on substrate are respectively arranged with light activated element row a, light activated element row b, light activated element row a, in row's shell of light activated element row b, all located side by side has the light activated element of row, described light transmitting filament is in staggered ends mode, light transmitting filament one side end and light activated element are arranged a, the light activated element of light activated element row b connects, the laser sent when described Sarasota rocking test generating laser is irradiated on any light transmitting filament of optical fiber target spot device, and light conduction is given corresponding light activated element by this root light transmitting filament, and light activated element just exports transducing signal.
5. a method of testing for Cable-stayed Bridge Pylon degree of tilt and rocking test device, carry out according to the following steps successively, it is characterized in that:
(1) mounting bracket I in the upstream side at Sarasota top, mounting bracket II in downstream side in the middle part of Sarasota, and rain shade I, rain shade II is set up respectively on support I, support II, frame I is set up at the upstream side of Sarasota cushion cap, set up frame II in the downstream of Sarasota cushion cap, and in frame I, frame II, set up test canopy I, test canopy II respectively;
(2) Sarasota bobbing target point apparatus I is placed on the support I in Sarasota top rain shade I, and the Sarasota of Sarasota bobbing target point apparatus I swings target spot device a center line and bridge centerline parallel, Sarasota swings target spot device b center line and bridge central axis, Sarasota bobbing target point apparatus II is placed on the support II in the middle part of Sarasota in rain shade II, and the Sarasota of Sarasota bobbing target point apparatus II swings target spot device c center line and bridge centerline parallel, Sarasota swings target spot device d center line and bridge central axis; Sarasota rocking test laser beam emitting device I is placed in the frame I in Sarasota cushion cap upstream side test canopy I, Sarasota rocking test laser beam emitting device II is placed in the frame II in Sarasota cushion cap downstream test canopy II;
(3), after the cable of Sarasota bobbing target point device a, Sarasota swing target spot device b, Sarasota swing target spot device c, Sarasota swing target spot device d, Sarasota rocking test generating laser a, Sarasota rocking test generating laser b, Sarasota rocking test generating laser c, Sarasota rocking test generating laser d being connected with swing monitor with Sarasota degree of tilt, the power switch opening instrument and equipment carries out on-line debugging;
(4) test canopy I skylight in frame I and rain shade I ground window on support I is opened, the generating laser of Sarasota rocking test generating laser a is swung target spot device a towards Sarasota, the display of monitor is swung depending on Sarasota, direction knob on adjustment Sarasota rocking test generating laser a, after the laser alignment optical fiber target spot device a that generating laser sends, screw the stop knob on Sarasota rocking test generating laser a, this generating laser is braked, and the generating laser of Sarasota rocking test generating laser b is swung target spot device b towards Sarasota, the display of monitor is swung depending on Sarasota, direction knob on adjustment Sarasota rocking test generating laser b, after the laser alignment optical fiber target spot device b that generating laser sends, screw the stop knob on Sarasota rocking test generating laser b, this generating laser is braked,
Open test canopy II skylight in frame II and rain shade II ground window on support II, the generating laser of Sarasota rocking test generating laser c is swung target spot device c towards Sarasota, the display of monitor is swung depending on Sarasota, direction knob on adjustment Sarasota rocking test generating laser c, after the laser alignment optical fiber target spot device c that generating laser sends, screw the stop knob on Sarasota rocking test generating laser c, this generating laser is braked; And the generating laser of Sarasota rocking test generating laser d is swung target spot device d towards Sarasota, the display of monitor is swung depending on Sarasota, direction knob on adjustment Sarasota rocking test generating laser d, after the laser alignment optical fiber target spot device d that generating laser sends, screw the stop knob on Sarasota rocking test generating laser d, this generating laser is braked;
(5) measure Sarasota rocking test generating laser a and swing target spot device a, Sarasota rocking test generating laser b to Sarasota swing target spot device b, Sarasota rocking test generating laser c to Sarasota swing target spot device c, Sarasota rocking test generating laser d to the vertical distance of Sarasota swing target spot device d to Sarasota;
(6) tower top of Sarasota, two positions at middle part can just be carried out in the test of centrally line, centrally line vertical direction updip gradient and swing.
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| CN102346018A (en) * | 2011-09-30 | 2012-02-08 | 合肥工业大学 | Photoelectric type flexibility tester of building member |
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| CN201387433Y (en) * | 2008-12-31 | 2010-01-20 | 中国科学院测量与地球物理研究所 | Bridge swing acceleration measurement device |
| CN101943574A (en) * | 2010-07-28 | 2011-01-12 | 合肥工业大学 | Pendulum two-dimensional angular displacement sensor |
| CN102346018A (en) * | 2011-09-30 | 2012-02-08 | 合肥工业大学 | Photoelectric type flexibility tester of building member |
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