CN103245329A - 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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- CN103245329A CN103245329A CN2013101434060A CN201310143406A CN103245329A CN 103245329 A CN103245329 A CN 103245329A CN 2013101434060 A CN2013101434060 A CN 2013101434060A CN 201310143406 A CN201310143406 A CN 201310143406A CN 103245329 A CN103245329 A CN 103245329A
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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 normal degree of tilt that adopts transit to test Cable-stayed Bridge Pylon, and adopt vibration pick-up etc. to carry out the swing of Cable-stayed Bridge Pylon, but those instrument and equipments exist can not long term exposure in the open air, degree of tilt and the swing of Cable-stayed Bridge Pylon can not be recorded simultaneously, the deficiency of aspects such as monitor signal can not be exported continuously in real time.
Summary of the invention
At the deficiency of existing test Cable-stayed Bridge Pylon degree of tilt with the swing 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, 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 have been comprised, it is characterized in that: the upstream side on the cable-stayed bridge cushion cap is mounted with the frame I, test canopy I is installed on the frame I, is mounted with described Sarasota rocking test laser beam emitting device I in the test canopy I; Downstream on the cable-stayed bridge cushion cap is mounted with the frame II, and test canopy II is installed on the frame II, is mounted with described Sarasota rocking test laser beam emitting device II in the test canopy II; On the ceiling of described test canopy I, test canopy II, the skylight is arranged all; Upstream side at the Cable-stayed Bridge Pylon top is equipped with the support I, and the rain shade I is installed on the support I, is mounted with described Sarasota bobbing target point apparatus I in the rain shade I; Downstream side at the Cable-stayed Bridge Pylon middle part is equipped with the support II, and the rain shade II is installed on the support II, is mounted with described Sarasota bobbing target point apparatus II in the rain shade II; On the base plate of described rain shade I, rain shade II, ground window is arranged all; The center line of described support I and frame I is positioned at Sarasota along on the same vertical guide of bridge center line vertical direction, and the center line of described support II and frame II is positioned at Sarasota along on the same vertical guide of bridge center line vertical direction; Described Sarasota rocking test laser beam emitting device I base is rectangle, be mounted with Sarasota rocking test generating laser a on this base side by side, Sarasota rocking test generating laser b, described Sarasota rocking test laser beam emitting device II base is rectangle, be mounted with Sarasota rocking test generating laser c on this base side by side, Sarasota rocking test generating laser d, described Sarasota bobbing target point apparatus I support is rectangle, two square through holes are side by side arranged on this support, be mounted with Sarasota swing target spot device a on these two through holes separately, Sarasota swing target spot device b, and the center line of Sarasota swing target spot device a is parallel with the bridge center line, the center line of Sarasota swing target spot device b is vertical with the bridge center line, described Sarasota bobbing target point apparatus II support is rectangle, two square through holes are side by side arranged on this support, be mounted with Sarasota swing target spot device c on these two through holes separately, Sarasota swing target spot device d, and the center line of Sarasota swing target spot device c is parallel with the bridge center line, and the center line of Sarasota swing target spot device d is vertical with the bridge center line; The Sarasota rocking test generating laser a of described Sarasota rocking test laser beam emitting device I is by the skylight of test canopy I, and the ground window that passes through the rain shade I, aim at the Sarasota swing target spot device a emission laser of Sarasota bobbing target point apparatus I, carry out the Sarasota top along the test of bridge center line vertical direction inclination with swing; The Sarasota rocking test generating laser b of described Sarasota rocking test laser beam emitting device I is by the skylight of test canopy I, and the ground window that passes through the rain shade I, aim at the Sarasota swing target spot device b emission laser of Sarasota bobbing target point apparatus I, carry out the Sarasota top along the test of bridge centerline direction inclination with swing; The Sarasota rocking test generating laser c of described Sarasota rocking test laser beam emitting device II is by the skylight of test canopy II, and the ground window that passes through the rain shade II, aim at the Sarasota swing target spot device c emission laser of Sarasota bobbing target point apparatus II, carry out the Sarasota middle part along the test of bridge center line vertical direction inclination with swing; The Sarasota rocking test generating laser d of described Sarasota rocking test laser beam emitting device II is by the skylight of test canopy II, and the ground window that passes through the rain shade II, aim at the Sarasota swing target spot device d emission laser of Sarasota bobbing target point apparatus II, carry out the Sarasota middle part along the test of bridge centerline direction inclination with swing.
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, be mounted with the laser direction regulator on this base plate, be mounted with generating laser on the laser direction regulator, transfer the direction knob of described laser direction regulator, the laser that can allow generating laser upwards launch is mobile at two-dimensional directional, screw the stop knob of described laser direction regulator, can make the generating laser braking.
The structure of described Sarasota bobbing target point apparatus I, Sarasota bobbing target point apparatus II is identical, and namely described Sarasota swing target spot device a, Sarasota swing target spot device b, Sarasota swing target spot device c, Sarasota swing target spot device d are Sarasota swing target spot device of the same race; Described Sarasota swing target spot device device seat is the square box shape, on this device seat base plate square through hole is arranged, and studs with dustproof plane light-passing board on this through hole, and the following position in the device seat is mounted with optical fiber target spot device, and the upper part in the device seat is mounted with two-dimentional oscillation gauge; Described two-dimentional oscillation gauge device box is the square box shape, this device box is along being mounted with cantilever slab, magneto sensor respectively on the relative inwall of Sarasota swing target spot device center line, the plate end of cantilever slab is mounted with magnet piece, this magnet piece and magneto sensor have the spacing of δ, fill with silicone oil in the device box, formed the test chamber of sealing; The plate face of described cantilever slab is vertical, when Sarasota is swung perpendicular to described cantilever slab plate axis, cantilever slab can produce swing, and the magnet piece of cantilever slab plate end switches the magnetic line of force on the magneto sensor back and forth, the transducing signal of the magneto sensor output Sarasota swing amplitude of oscillation and frequency; The optical fiber target spot device of described Sarasota swing target spot device, the center line of two-dimentional oscillation gauge all are positioned on the same vertical guide of Sarasota swing target spot device center line, and the light transmitting filament of described optical fiber target spot device faces dustproof plane light-passing board downwards.
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 that many light transmitting filaments are formed, be provided with every the light film between this light transmitting filament row's the every light transmitting filament, light transmitting filament row two ends on the substrate are respectively arranged with light activated element row a, light activated element row b, all be mounted with the light activated element of row in row's shell of light activated element row a, light activated element row b side by side, described light transmitting filament is connected the light activated element of light transmitting filament one side end with light activated element row a, light activated element row b in staggered end mode; When laser that described Sarasota rocking test generating laser sends shines on any light transmitting filament of optical fiber target spot device, this root light transmitting filament conducts light activated element to correspondence with light, and light activated element is just exported transducing signal.
The method of testing of a kind of Cable-stayed Bridge Pylon degree of tilt and rocking test device, carry out according to the following steps successively:
(1) mounting bracket I on the upstream side at Sarasota top, mounting bracket II on the downstream side at Sarasota middle part, and on support I, support II, set up rain shade I, rain shade II respectively, set up the frame I at the upstream side of Sarasota cushion cap, set up the frame II in the downstream of Sarasota cushion cap, and on frame I, frame II, set up respectively and survey test canopy I, test canopy II;
(2) Sarasota bobbing target point apparatus I is placed on the support I in the rain shade I of Sarasota top, and the Sarasota of Sarasota bobbing target point apparatus I swing target spot device a center line is parallel with the bridge center line, Sarasota swing target spot device b center line is vertical with the bridge center line, Sarasota bobbing target point apparatus II is placed on the support II in the rain shade II of Sarasota middle part, and the Sarasota of Sarasota bobbing target point apparatus II swing target spot device c center line is parallel with the bridge center line, and Sarasota swing target spot device d center line is vertical with the bridge center line; Sarasota rocking test laser beam emitting device I is placed on the frame I in the Sarasota cushion cap upstream side test canopy, Sarasota rocking test laser beam emitting device II is placed on the frame II in the Sarasota cushion cap downstream test canopy II;
(3) 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 and Sarasota degree of tilt with swing monitor and connect after, the power switch of opening instrument and equipment carries out on-line debugging;
(4) the test canopy I skylight on the unlatching frame I and the rain shade I ground window on the support I, the generating laser of Sarasota rocking test generating laser a is swung target spot device a towards Sarasota, look the demonstration of Sarasota swing monitor, adjust the direction knob on the Sarasota rocking test generating laser a, behind the laser alignment optical fiber target spot device a that generating laser is sent, screw the stop knob on the Sarasota rocking test generating laser a, with this generating laser braking, and the generating laser of Sarasota rocking test generating laser b towards Sarasota swing target spot device b, look the demonstration of Sarasota swing monitor, adjust the direction knob on the Sarasota rocking test generating laser b, behind the laser alignment optical fiber target spot device b that generating laser is sent, screw the stop knob on the Sarasota rocking test generating laser b, with this generating laser braking;
Test canopy II skylight on the unlatching frame II and the rain shade II ground window on the support II, the generating laser of Sarasota rocking test generating laser c is swung target spot device c towards Sarasota, look the demonstration of Sarasota swing monitor, adjust the direction knob on the Sarasota rocking test generating laser c, behind the laser alignment optical fiber target spot device c that generating laser is sent, screw the stop knob on the Sarasota rocking test generating laser c, with this generating laser braking; And the generating laser of Sarasota rocking test generating laser d towards Sarasota swing target spot device d, look the demonstration of Sarasota swing monitor, adjust the direction knob on the Sarasota rocking test generating laser d, behind the laser alignment optical fiber target spot device d that generating laser is sent, screw the stop knob on the Sarasota rocking test generating laser d, with this generating laser braking;
(5) measure the vertical distance that Sarasota rocking test generating laser a to Sarasota swings target spot device d 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 Sarasota swing target spot device a, Sarasota rocking test generating laser b;
(6) just can carry out two positions at cat head, middle part of Sarasota along center line, along the test of center 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: the Sarasota of cable-stayed bridge is under the effect that natural frequency, girder load, wind carry etc., meeting run-off the straight and swing, now by the Sarasota rocking test generating laser a on the frame I of Sarasota cushion cap upstream side, Sarasota swing target spot device a on Sarasota head upstream side stand I launches laser, tests the Sarasota top along inclination and the swing of bridge center line vertical direction; By the Sarasota rocking test generating laser b on the frame I of Sarasota cushion cap upstream side, the Sarasota swing target spot device b on Sarasota head upstream side stand I launches laser, tests the Sarasota top along inclination and the swing of bridge centerline direction; By the Sarasota rocking test generating laser c on the frame II in Sarasota cushion cap downstream, the Sarasota swing target spot device c on the support II of downstream, Sarasota middle part launches laser, tests the Sarasota middle part along inclination and the swing of bridge center line vertical direction; By the Sarasota rocking test generating laser d on the frame II in Sarasota cushion cap downstream, the Sarasota swing target spot device d on the support II of downstream, Sarasota middle part launches laser, tests the Sarasota middle part along inclination and the swing of bridge centerline direction.Because structure, the function of 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 identical, so adopt Sarasota rocking test generating laser of the same race, and structure, the function of Sarasota swing target spot device a, Sarasota swing target spot device b, Sarasota swing target spot device c, Sarasota swing target spot device d are also identical, so adopt Sarasota swing target spot device of the same race.During test, be placed on the cushion cap frame Sarasota rocking test generating laser and launch the motionless laser of relative fixed, shine the optical fiber target spot device of Sarasota swing target spot device, be irradiated to the light transmitting filament of light on this optical fiber target spot device, light is conducted on the corresponding light activated element, transferred out the signal of sensing by this light activated element.Swing because of Sarasota, the laser spots that Sarasota rocking test generating laser is launched moves around along the light transmitting filament vertical direction of Sarasota swing target spot device optical fiber target spot device, the light transmitting filament that is irradiated to light transmission to corresponding light activated element, record the distance of two light transmitting filaments of spaced furthest like this, just can obtain the amplitude of oscillation of Sarasota on this direction, and test out each amplitude of oscillation interlude, just can obtain the frequency that Sarasota is swung in this direction.Because Sarasota swing target spot device a, Sarasota swing target spot device c center line are by the arrangement parallel with the bridge center line, the optical fiber target spot device light transmitting filament that is Sarasota swing target spot device a, Sarasota swing target spot device c is arranged along bridge center line parallel direction, so Sarasota swing target spot device a, Sarasota swing target spot device c can record the top, middle part of Sarasota respectively along the swing of bridge center line vertical direction; Again because Sarasota is swung target spot device b, Sarasota swing target spot device d center line by the arrangement vertical with the bridge center line, the optical fiber target spot device light transmitting filament that is Sarasota swing target spot device b, Sarasota swing target spot device d is arranged along bridge center line vertical direction, so Sarasota swing target spot device b, Sarasota swing target spot device d can record the top, middle part of Sarasota respectively along the swing of bridge centerline direction.In addition, record Sarasota rocking test generating laser generating laser to the vertical distance of Sarasota swing target spot device optical fiber target spot device with measurement equipment, if this vertical range is y, establishing the distance that is shone two light transmitting filaments of spaced furthest by laser again is x, then recording the degree of tilt of Sarasota on this direction is θ, θ=arctgx/y.
Simultaneously, in Sarasota swing target spot device a, Sarasota swing target spot device b, Sarasota swing target spot device c, Sarasota swing target spot device d, be provided with the two-dimentional oscillation gauge of auxiliary usefulness separately, cantilever slab plate axis and the bridge center line of Sarasota being swung the two-dimentional oscillation gauge of target spot device a, Sarasota swing target spot device c be arranged in parallel, and the cantilever slab plate axis of the two-dimentional oscillation gauge of Sarasota swing target spot device b, Sarasota swing target spot device d arranges with the bridge center line is vertical.Because the transversal section of those cantilever slabs is rectangular thin plate, its plate hight is little more than the wide size of plate, be that cantilever slab is little more than the rigidity of plate width direction in the rigidity of plate hight direction, so when Sarasota is swung, the plate axis normal produces distortion and swings in cantilever slab meeting under the inertial force effect of Sarasota swaying direction, the magnet piece of cantilever slab plate end, swing along with the swing of cantilever slab, switching the magnetic line of force on the magneto sensor with magnet piece interval delta distance, the transducing signal of magneto sensor output is with magnetic line of force Strength Changes size.Obtain the amplitude of oscillation of Sarasota according to the size of magneto sensor output transducing signal, according to the frequency that obtains the Sarasota swing interval time of twice maximum amplitude of oscillation.So the cantilever slab of two-dimentional oscillation gauge can record Sarasota along the bridge center line, along amplitude and the frequency of bridge center line vertical direction swing.
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 and method of testing thereof that the present invention proposes, it can monitor the behavioral characteristics of cable-stayed bridge Sarasota in construction, operation, maintenance, guarantees the safety of cable-stayed bridge.This tester has that range is big, precision is high, good resolution, reliable operation, characteristics such as easy to operate, can round-the-clockly test continuously, outputs test data in real time, for degree of tilt and the swing of test Cable-stayed Bridge Pylon provides new instrument equipment.
Description of drawings
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 for looking synoptic diagram on the left of Cable-stayed Bridge Pylon degree of tilt of the present invention and the work of rocking test device.
Fig. 3 looks synoptic diagram for Cable-stayed Bridge Pylon degree of tilt of the present invention and rocking test device work right side.
Fig. 4 is the positive sectional structure synoptic diagram of Sarasota rocking test laser beam emitting device I of the present invention.
Fig. 5 is the left side sectional structure synoptic diagram of Sarasota rocking test laser beam emitting device I of the present invention.
Fig. 6 is the sectional structure synoptic diagram of bowing of Sarasota rocking test laser beam emitting device I of the present invention.
Fig. 7 is the positive sectional structure synoptic diagram of Sarasota bobbing target point apparatus I of the present invention.
Fig. 8 is the Sarasota swing target spot device a left side sectional structure synoptic diagram of Sarasota bobbing target point apparatus I of the present invention.
Fig. 9 is the Sarasota swing target spot device b left side sectional structure synoptic diagram of Sarasota bobbing target point apparatus I of the present invention.
Figure 10 is the two-dimentional oscillation gauge layer of the Sarasota bobbing target point apparatus I of the present invention sectional structure synoptic diagram of bowing.
Figure 11 is the optical fiber target spot device layer of the Sarasota bobbing target point apparatus I of the present invention sectional structure synoptic diagram of bowing.
Figure 12 is optical fiber target spot device of the present invention front side sectional structure synoptic diagram.
Figure 13 is optical fiber target spot device of the present invention left side sectional structure synoptic diagram.
Figure 14 is the optical fiber target spot device of the present invention sectional structure synoptic diagram of bowing.
Number in the figure: 1 cable-stayed bridge, 2 Sarasotas, 3 drag-lines, 4 girders, 5 cushion caps, 6 pile foundations, 7 riverbed faces, 8 peak levels, 9 frame I, 10 frame II, 11 test canopy I, 12 test canopy II, 13 skylights, 14 support I, 15 support II, 16 rain shade I, 17 rain shade II, 18 ground windows, 19 Sarasota rocking test laser beam emitting device 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 swing target spot device c, 31 Sarasotas swing target spot device b or Sarasota swing target spot device d, 32 device seats, 33 dustproof plane light-passing boards, 34 two-dimentional oscillation gauge, 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 the light film, 45 light activated elements row a, 46 light activated elements row b, 47 row's shells, 48 light activated elements.
Embodiment
Referring to Fig. 1～Figure 14, be a kind of Cable-stayed Bridge Pylon degree of tilt of the present invention and rocking test device, 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 have been comprised, it is characterized in that: the upstream side on cable-stayed bridge 1 cushion cap 5 is mounted with frame I 9, test canopy I 11 is installed on the frame I 9, is mounted with described Sarasota rocking test laser beam emitting device I 19 in the test canopy I 11.Downstream on cable-stayed bridge 1 cushion cap 5 is mounted with frame II 10, and test canopy II 12 is installed on the frame II 10, is mounted with described Sarasota rocking test laser beam emitting device II 19 in the test canopy II 12.On the ceiling of described test canopy I 11, test canopy II 12, skylight 13 is arranged all.Upstream side at cable-stayed bridge 1 Sarasota 2 tops is equipped with support I 14, and rain shade I 16 is installed on the support I 14, is mounted with described Sarasota bobbing target point apparatus I 28 in the rain shade I 16.Downstream side at cable-stayed bridge 1 Sarasota 2 middle parts is equipped with support II 15, and rain shade II 17 is installed on the support II 15, is mounted with described Sarasota bobbing target point apparatus II 28 in the rain shade II 17.On the base plate of described rain shade I 16, rain shade II 17, ground window 18 is arranged all.
Described support I 14 is positioned at Sarasota 2 along on the same vertical guide of bridge center line vertical 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 of bridge center line vertical direction with the center line of frame II 10.Described Sarasota rocking test laser beam emitting device I 19 bases 20 are rectangle, be mounted with Sarasota rocking test generating laser a21, Sarasota rocking test generating laser b22 on this base 20 side by side, described Sarasota rocking test laser beam emitting device II 19 bases 20 are rectangle, are mounted with Sarasota rocking test generating laser c21, Sarasota rocking test generating laser d22 on this base 20 side by side; Described Sarasota bobbing target point apparatus I 28 supports 29 are rectangle, two square through holes are side by side arranged on this support 29, be mounted with Sarasota swing target spot device a30, Sarasota swing target spot device b31 on these two through holes separately, and the center line of Sarasota swing target spot device a30 is parallel with the bridge center line, and the center line of Sarasota swing target spot device b31 is vertical with the bridge center line; Described Sarasota bobbing target point apparatus II 28 supports 29 are rectangle, two square through holes are side by side arranged on this support 29, be mounted with Sarasota swing target spot device c30, Sarasota swing target spot device d31 on these two through holes separately, and the center line of Sarasota swing target spot device c30 is parallel with the bridge center line, and the center line of Sarasota swing target spot device d31 is vertical with the bridge center line.The Sarasota rocking test generating laser a21 of described Sarasota rocking test laser beam emitting device I 19 is by the skylight 13 of test canopy I 11, and the ground window 18 that passes through rain shade I 16, aim at the Sarasota swing target spot device a30 emission laser of Sarasota bobbing target point apparatus I 28, carry out Sarasota 2 tops along the test of bridge center line vertical direction inclination with swing; The Sarasota rocking test generating laser b22 of described Sarasota rocking test laser beam emitting device I 19 is by the skylight 13 of test canopy I 11, and the ground window 18 that passes through rain shade I 16, aim at the Sarasota swing target spot device b31 emission laser of Sarasota bobbing target point apparatus I 28, carry out Sarasota 2 tops along the test of bridge centerline direction inclination with swing; The Sarasota rocking test generating laser c21 of described Sarasota rocking test laser beam emitting device II 19 is by the skylight 13 of test canopy II 12, and the ground window 18 that passes through rain shade II 17, aim at the Sarasota swing target spot device c30 emission laser of Sarasota bobbing target point apparatus II 28, carry out Sarasota 2 middle parts along the test of bridge center line vertical direction inclination with swing; The Sarasota rocking test generating laser d22 of described Sarasota rocking test laser beam emitting device II 19 is by the skylight 13 of test canopy II 12, and the ground window 18 that passes through rain shade II 17, aim at the Sarasota swing target spot device d31 emission laser of Sarasota bobbing target point apparatus II 28, carry out Sarasota 2 middle parts along the test of bridge centerline direction inclination with swing.
Sarasota rocking test laser beam emitting device I, Sarasota rocking test laser beam emitting device II 19 structures 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, be mounted with laser direction regulator 23 on this base plate 24, be mounted with generating laser 25 on the laser direction regulator 23, transfer the direction knob 26 of described laser direction regulator 23, the laser that can allow generating laser 25 upwards launch is mobile at two-dimensional directional, screw the stop knob 27 of described laser direction regulator 23, can make generating laser 25 brakings.
The structure of Sarasota bobbing target point apparatus I, Sarasota bobbing target point apparatus II 28 is identical, and namely described Sarasota swing target spot device a30, Sarasota swing target spot device b31, Sarasota swing target spot device c30, Sarasota swing target spot device d31 are Sarasota swing target spot device of the same race.Described Sarasota swing target spot device device seat 32 is the square box shape, on these device seat 32 base plates square through hole is arranged, stud with dustproof plane light-passing board 33 on this through hole, following position in the device seat 32 is mounted with optical fiber target spot device 41, upper part in the device seat 32 is mounted with two-dimentional oscillation gauge 34, described two-dimentional oscillation gauge 34 device boxes 35 are the square box shape, this device box 35 is along being mounted with cantilever slab 36 respectively on the relative inwall of Sarasota swing target spot device center line, 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, fill with silicone oil 39 in the device box 35, formed the test chamber of sealing.The plate face of described cantilever slab 36 is vertical, when Sarasota 2 is swung perpendicular to described cantilever slab 36 plate axis, cantilever slab 36 can produce swing, the magnet piece 37 of cantilever slab 36 plate ends switches the magnetic line of force on the magneto sensor 38 back and forth, the transducing signal of magneto sensor 38 output Sarasotas, the 2 swing amplitudes of oscillation and frequency.The optical fiber target spot device 41 of described Sarasota swing target spot device, the center line of two-dimentional oscillation gauge 34, all be positioned on the same vertical guide of Sarasota swing target spot device center line, the light transmitting filament 43 of described optical fiber target spot device 41 faces dustproof plane light-passing board 33 downwards.
Described optical fiber target spot device 41 substrates 42 are 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 are formed, be provided with every light film 44 between this light transmitting filament row's the every light transmitting filament 43, light transmitting filament 43 row two ends on the substrate 42 are respectively arranged with light activated element row a45, light activated element row b46, light activated element row a45, all be mounted with the light activated element 48 of row in row's shell 47 of light activated element row b46 side by side, described light transmitting filament 43 is in staggered end mode, with light transmitting filament 43 1 side ends and light activated element row a45, the light activated element 48 of light activated element row b46 connects.When laser that described Sarasota rocking test generating laser sends shines on any light transmitting filament 43 of optical fiber target spot device 41, this root light transmitting filament 43 conducts light activated element 48 to correspondence with light, and light activated element 48 is just exported transducing signal.
The method of testing of a kind of Cable-stayed Bridge Pylon degree of tilt and rocking test device, carry out according to the following steps successively:
(1) mounting bracket I 14 on the upstream side at Sarasota 2 tops, mounting bracket II 15 on the downstream side at Sarasota middle part, and on support I 14, support II 15, set up rain shade I 16, rain shade II 17 respectively.Upstream side at Sarasota 2 cushion caps 5 is set up frame I 9, sets up frame II 10 in the downstream of Sarasota 2 cushion caps 5, and sets up respectively on frame I 9, frame II 10 and survey test canopy I 11, test canopy II 12;
(2) Sarasota bobbing target point apparatus I 28 is placed on the support I 14 in the Sarasota 2 top rain shade I 16, and the Sarasota of Sarasota bobbing target point apparatus I 28 swing target spot device a30 center line is parallel with the bridge center line, and Sarasota swing target spot device b31 center line is vertical with the bridge center line.Sarasota bobbing target point apparatus II 28 is placed on the support II 15 in the Sarasota 2 middle part rain shade II 17, and the Sarasota of Sarasota bobbing target point apparatus II 28 swing target spot device c30 center line is parallel with the bridge center line, and Sarasota swing target spot device d31 center line is vertical with the bridge center line;
Sarasota rocking test laser beam emitting device I 19 is placed on the frame I 9 in the Sarasota 2 cushion caps 5 upstream sides tests canopy, Sarasota rocking test laser beam emitting device II 19 is placed on the frame II 10 in the Sarasota cushion cap downstream test canopy II 12;
(3) 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 and Sarasota degree of tilt with swing monitor and connect after, the power switch of opening instrument and equipment carries out on-line debugging;
(4) test canopy I 11 skylights 13 on the unlatching frame I 9 and rain shade I 16 ground windows 18 on the support I 14, the generating laser 25 of Sarasota rocking test generating laser a21 is swung target spot device a30 towards Sarasota, look the demonstration of Sarasota swing monitor, adjust the direction knob 26 on the Sarasota rocking test generating laser a21, behind the laser alignment optical fiber target spot device a30 that generating laser 25 is sent, screw the stop knob 27 on the Sarasota rocking test generating laser a21, with these generating laser 25 brakings.And the generating laser 25 of Sarasota rocking test generating laser b22 towards Sarasota swing target spot device b31, look the demonstration of Sarasota swing monitor, adjust the direction knob 26 on the Sarasota rocking test generating laser b22, behind the laser alignment optical fiber target spot device b31 that generating laser 25 is sent, screw the stop knob 27 on the Sarasota rocking test generating laser b22, with these generating laser 25 brakings;
Test canopy II 12 skylights 13 on the unlatching frame II 10 and rain shade II 17 ground windows 18 on the support II 15, the generating laser 25 of Sarasota rocking test generating laser c21 is swung target spot device c30 towards Sarasota, look the demonstration of Sarasota swing monitor, adjust the direction knob 26 on the Sarasota rocking test generating laser c21, behind the laser alignment optical fiber target spot device c30 that generating laser 25 is sent, screw the stop knob 27 on the Sarasota rocking test generating laser c21, with these generating laser 25 brakings.And the generating laser 25 of Sarasota rocking test generating laser d22 towards Sarasota swing target spot device d31, look the demonstration of Sarasota swing monitor, adjust the direction knob 26 on the Sarasota rocking test generating laser d22, behind the laser alignment optical fiber target spot device d31 that generating laser 25 is sent, screw the stop knob 27 on the Sarasota rocking test generating laser d22, with these generating laser 25 brakings;
(5) measure the vertical distance that Sarasota rocking test generating laser a21 to Sarasota swings target spot device d31 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 Sarasota swing target spot device a30, Sarasota rocking test generating laser b22;
(6) two positions in cat head, middle part that just can carry out Sarasota 2 are along center line, along the test of center line vertical direction updip gradient and swing.
Cable-stayed bridge 1 is a kind of bridge of large span; Sarasota 2 is the structures of hanging rope, bearing the girder load; Drag-line 3 is to bear and transmit the girder load to give 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; Riverbed face 7 is the bottom surfaces in river; Peak level 8 is the highest water levels that flood in river; The effect of frame I 9 is to settle Sarasota rocking test laser beam emitting device I 19 at cushion cap 5; The effect of frame II 10 is to settle Sarasota rocking test laser beam emitting device II 19 at cushion cap 5; The effect of test canopy I 11 is to becalm to Sarasota rocking test laser beam emitting device I 19 to take shelter from rain, and the operating space; The effect of test canopy II 12 is to becalm to Sarasota rocking test laser beam emitting device II 19 to take shelter from rain, and the operating space; The effect in skylight 13 is to allow 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 to settle Sarasota bobbing target point apparatus I 28 at Sarasota 5; The effect of support II 15 is to settle Sarasota bobbing target point apparatus II 28 at Sarasota 5; The effect of rain shade I 16 is to becalm to Sarasota bobbing target point apparatus I 28 to take shelter from rain; The effect of rain shade II 17 is to becalm to Sarasota bobbing target point apparatus II 28 to take shelter from rain; The effect of ground window 18 is that the laser that allows Sarasota rocking test laser beam emitting device I or Sarasota rocking test laser beam emitting device II 19 send is mapped to I or Sarasota bobbing target point apparatus II 28 on the Sarasota bobbing target point apparatus; The effect of Sarasota rocking test laser beam emitting device I or Sarasota rocking test laser beam emitting device II 19 is to 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 base 20 is to 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 in support I 14 or support II 15; The effect of Sarasota rocking test generating laser a21 is the laser that detects usefulness to Sarasota swing target spot device a30 emission; The effect of Sarasota rocking test generating laser b22 is the laser that detects usefulness to Sarasota swing target spot device b31 emission; The effect of laser direction regulator 23 is to settle generating laser 25, and transfers, brakes generating laser 25; The effect of base plate 24 is to settle laser direction regulator 23; The effect of generating laser 25 is the laser that emission detects usefulness; The effect of direction knob 26 is directions of transferring generating laser 25; The effect of stop knob 27 is to allow generating laser 25 brakings; The effect of Sarasota bobbing target point apparatus I or Sarasota bobbing target point apparatus II 28 is to settle Sarasota swing target spot device a30, Sarasota swing target spot device b31 or Sarasota swing target spot device c30, Sarasota swing target spot device d31; The effect of support 29 is to settle Sarasota swing target spot device a30, Sarasota swing target spot device b31 or Sarasota swing target spot device c30, Sarasota swing target spot device d31; The effect of Sarasota swing target spot device a or Sarasota swing target spot device c30 is that upstream or the downstream at sensing Sarasota 2 tops or middle part tilts and the signal of swinging; The effect of Sarasota swing target spot device b or Sarasota swing target spot device d31 is that riverbank or the riverbed at sensing Sarasota 5 tops or middle part rolls tiltedly and the signal of swing; The effect of device seat 32 is to settle two-dimentional oscillation gauge 34, optical fiber target spot device 41; The effect of dustproof plane light-passing board 33 is that the plane printing opacity is with dustproof; The effect of two dimension oscillation gauge 34 is to test Sarasota 5 upstream or the sensing of downstream, riverbank or the swing of riverbed direction; The effect of device box 35 is to settle cantilever slab 36 and magneto sensor 38, and forms the test chamber of sealing; The effect of cantilever slab 36 be sensing Sarasota 5 in the upstream, the swing of downstream or riverbed, riverbank direction; 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, receives the magnetic line of force that magnet piece 37 switches, and converts this magnetic signal to electric signal; The effect of silicone oil 39 is the shakes that reduce cantilever slab 36; The effect of case 40 is the two-dimentional oscillation gauge 34 of protection, optical fiber target spot device 41; The effect of optical fiber target spot device 41 is sensors of receiving optical signals, the distance that the energy testing light source moves; The effect of substrate 42 is arrangement light transmitting filaments 43, arranges b46, row's shell 47 every light film 44, light activated element row a45, light activated element; The effect of light transmitting filament 43 is receiving optical signals, and light signal is conducted to light activated element 48; Effect every light film 44 is to allow every light transmitting filament 43 not disturb conducting light; The effect of light activated element row a45 is that light activated element 48 is positioned to row; The effect of light activated element row b46 is that light activated element 48 is positioned to row; 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, 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 have been comprised, it is characterized in that: the upstream side on the cable-stayed bridge cushion cap is mounted with the frame I, test canopy I is installed on the frame I, is mounted with described Sarasota rocking test laser beam emitting device I in the test canopy I; Downstream on the cable-stayed bridge cushion cap is mounted with the frame II, and test canopy II is installed on the frame II, is mounted with described Sarasota rocking test laser beam emitting device II in the test canopy II; On the ceiling of described test canopy I, test canopy II, the skylight is arranged all; Upstream side at the Cable-stayed Bridge Pylon top is equipped with the support I, and the rain shade I is installed on the support I, is mounted with described Sarasota bobbing target point apparatus I in the rain shade I; Downstream side at the Cable-stayed Bridge Pylon middle part is equipped with the support II, and the rain shade II is installed on the support II, is mounted with described Sarasota bobbing target point apparatus II in the rain shade II; On the base plate of described rain shade I, rain shade II, ground window is arranged all; The center line of described support I and frame I is positioned at Sarasota along on the same vertical guide of bridge center line vertical direction, and the center line of described support II and frame II is positioned at Sarasota along on the same vertical guide of bridge center line vertical direction; Described Sarasota rocking test laser beam emitting device I base is rectangle, be mounted with Sarasota rocking test generating laser a on this base side by side, Sarasota rocking test generating laser b, described Sarasota rocking test laser beam emitting device II base is rectangle, be mounted with Sarasota rocking test generating laser c on this base side by side, Sarasota rocking test generating laser d, described Sarasota bobbing target point apparatus I support is rectangle, two square through holes are side by side arranged on this support, be mounted with Sarasota swing target spot device a on these two through holes separately, Sarasota swing target spot device b, and the center line of Sarasota swing target spot device a is parallel with the bridge center line, the center line of Sarasota swing target spot device b is vertical with the bridge center line, described Sarasota bobbing target point apparatus II support is rectangle, two square through holes are side by side arranged on this support, be mounted with Sarasota swing target spot device c on these two through holes separately, Sarasota swing target spot device d, and the center line of Sarasota swing target spot device c is parallel with the bridge center line, and the center line of Sarasota swing target spot device d is vertical with the bridge center line; The Sarasota rocking test generating laser a of described Sarasota rocking test laser beam emitting device I is by the skylight of test canopy I, and the ground window that passes through the rain shade I, aim at the Sarasota swing target spot device a emission laser of Sarasota bobbing target point apparatus I, carry out the Sarasota top along the test of bridge center line vertical direction inclination with swing; The Sarasota rocking test generating laser b of described Sarasota rocking test laser beam emitting device I is by the skylight of test canopy I, and the ground window that passes through the rain shade I, aim at the Sarasota swing target spot device b emission laser of Sarasota bobbing target point apparatus I, carry out the Sarasota top along the test of bridge centerline direction inclination with swing; The Sarasota rocking test generating laser c of described Sarasota rocking test laser beam emitting device II is by the skylight of test canopy II, and the ground window that passes through the rain shade II, aim at the Sarasota swing target spot device c emission laser of Sarasota bobbing target point apparatus II, carry out the Sarasota middle part along the test of bridge center line vertical direction inclination with swing; The Sarasota rocking test generating laser d of described Sarasota rocking test laser beam emitting device II is by the skylight of test canopy II, and the ground window that passes through the rain shade II, aim at the Sarasota swing target spot device d emission laser of Sarasota bobbing target point apparatus II, carry out the Sarasota middle part along the test of bridge centerline direction inclination with swing.
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, 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, be mounted with the laser direction regulator on this base plate, be mounted with generating laser on the laser direction regulator, transfer the direction knob of described laser direction regulator, the laser that can allow generating laser upwards launch is mobile at two-dimensional directional, screw the stop knob of described laser direction regulator, can make the generating laser braking.
3. Cable-stayed Bridge Pylon degree of tilt according to claim 1 and rocking test device, it is characterized in that: the structure of described Sarasota bobbing target point apparatus I, Sarasota bobbing target point apparatus II is identical, and namely described Sarasota swing target spot device a, Sarasota swing target spot device b, Sarasota swing target spot device c, Sarasota swing target spot device d are Sarasota swing target spot device of the same race; Described Sarasota swing target spot device device seat is the square box shape, on this device seat base plate square through hole is arranged, and studs with dustproof plane light-passing board on this through hole, and the following position in the device seat is mounted with optical fiber target spot device, and the upper part in the device seat is mounted with two-dimentional oscillation gauge; Described two-dimentional oscillation gauge device box is the square box shape, this device box is along being mounted with cantilever slab, magneto sensor respectively on the relative inwall of Sarasota swing target spot device center line, the plate end of cantilever slab is mounted with magnet piece, this magnet piece and magneto sensor have the spacing of δ, fill with silicone oil in the device box, formed the test chamber of sealing; The plate face of described cantilever slab is vertical, when Sarasota is swung perpendicular to described cantilever slab plate axis, cantilever slab can produce swing, and the magnet piece of cantilever slab plate end switches the magnetic line of force on the magneto sensor back and forth, the transducing signal of the magneto sensor output Sarasota swing amplitude of oscillation and frequency; The optical fiber target spot device of described Sarasota swing target spot device, the center line of two-dimentional oscillation gauge all are positioned on the same vertical guide of Sarasota swing target spot device center line, and the light transmitting filament of described optical fiber target spot device faces dustproof plane light-passing board downwards.
4. Sarasota according to claim 3 is swung the target spot 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 that many light transmitting filaments are formed, be provided with every the light film between this light transmitting filament row's the every light transmitting filament, light transmitting filament row two ends on the substrate are respectively arranged with light activated element row a, light activated element row b, light activated element row a, all be mounted with the light activated element of row in row's shell of light activated element row b side by side, described light transmitting filament is in staggered end mode, with light transmitting filament one side end and light activated element row a, the light activated element of light activated element row b connects; When laser that described Sarasota rocking test generating laser sends shines on any light transmitting filament of optical fiber target spot device, this root light transmitting filament conducts light activated element to correspondence with light, and light activated element is just exported transducing signal.
5. the method for testing of a Cable-stayed Bridge Pylon degree of tilt and rocking test device is carried out successively according to the following steps, it is characterized in that:
(1) mounting bracket I on the upstream side at Sarasota top, mounting bracket II on the downstream side at Sarasota middle part, and on support I, support II, set up rain shade I, rain shade II respectively, set up the frame I at the upstream side of Sarasota cushion cap, set up the frame II in the downstream of Sarasota cushion cap, and on frame I, frame II, set up respectively and survey test canopy I, test canopy II;
(2) Sarasota bobbing target point apparatus I is placed on the support I in the rain shade I of Sarasota top, and the Sarasota of Sarasota bobbing target point apparatus I swing target spot device a center line is parallel with the bridge center line, Sarasota swing target spot device b center line is vertical with the bridge center line, Sarasota bobbing target point apparatus II is placed on the support II in the rain shade II of Sarasota middle part, and the Sarasota of Sarasota bobbing target point apparatus II swing target spot device c center line is parallel with the bridge center line, and Sarasota swing target spot device d center line is vertical with the bridge center line; Sarasota rocking test laser beam emitting device I is placed on the frame I in the Sarasota cushion cap upstream side test canopy, Sarasota rocking test laser beam emitting device II is placed on the frame II in the Sarasota cushion cap downstream test canopy II;
(3) 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 and Sarasota degree of tilt with swing monitor and connect after, the power switch of opening instrument and equipment carries out on-line debugging;
(4) the test canopy I skylight on the unlatching frame I and the rain shade I ground window on the support I, the generating laser of Sarasota rocking test generating laser a is swung target spot device a towards Sarasota, look the demonstration of Sarasota swing monitor, adjust the direction knob on the Sarasota rocking test generating laser a, behind the laser alignment optical fiber target spot device a that generating laser is sent, screw the stop knob on the Sarasota rocking test generating laser a, with this generating laser braking, and the generating laser of Sarasota rocking test generating laser b towards Sarasota swing target spot device b, look the demonstration of Sarasota swing monitor, adjust the direction knob on the Sarasota rocking test generating laser b, behind the laser alignment optical fiber target spot device b that generating laser is sent, screw the stop knob on the Sarasota rocking test generating laser b, with this generating laser braking;
Test canopy II skylight on the unlatching frame II and the rain shade II ground window on the support II, the generating laser of Sarasota rocking test generating laser c is swung target spot device c towards Sarasota, look the demonstration of Sarasota swing monitor, adjust the direction knob on the Sarasota rocking test generating laser c, behind the laser alignment optical fiber target spot device c that generating laser is sent, screw the stop knob on the Sarasota rocking test generating laser c, with this generating laser braking; And the generating laser of Sarasota rocking test generating laser d towards Sarasota swing target spot device d, look the demonstration of Sarasota swing monitor, adjust the direction knob on the Sarasota rocking test generating laser d, behind the laser alignment optical fiber target spot device d that generating laser is sent, screw the stop knob on the Sarasota rocking test generating laser d, with this generating laser braking;
(5) measure the vertical distance that Sarasota rocking test generating laser a to Sarasota swings target spot device d 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 Sarasota swing target spot device a, Sarasota rocking test generating laser b;
(6) just can carry out two positions at cat head, middle part of Sarasota along center line, along the test of center line vertical direction updip gradient and swing.
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| CN105971325A (en) * | 2016-05-05 | 2016-09-28 | 华信咨询设计研究院有限公司 | Base station with communication tower counter weight compensated through prefabricated machine room and stability monitoring method thereof |
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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 |
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| CN105971325A (en) * | 2016-05-05 | 2016-09-28 | 华信咨询设计研究院有限公司 | Base station with communication tower counter weight compensated through prefabricated machine room and stability monitoring method thereof |
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