CN204903193U - High -speed railway ballastless track and on --spot testing arrangement of box bridge system power response - Google Patents
High -speed railway ballastless track and on --spot testing arrangement of box bridge system power response Download PDFInfo
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- CN204903193U CN204903193U CN201520623790.9U CN201520623790U CN204903193U CN 204903193 U CN204903193 U CN 204903193U CN 201520623790 U CN201520623790 U CN 201520623790U CN 204903193 U CN204903193 U CN 204903193U
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Abstract
The utility model relates to a high -speed railway ballastless track and on - -spot testing arrangement of box bridge system power response, including lay in high -speed railway train working line on and be used for testing ballastless track and bridge dynamic response on -the -spot detection mechanism, be used for obtaining the data message and carrying out data information transmission's data collection agency and be used for follow data collection agency to obtain the data message and store and the remote control terminal of assay from on -the -spot detection mechanism, be connected through radio signal between data collection agency and the remote control terminal, on -the -spot detection mechanism includes at least one acceleration sensor, at least one displacement sensor and at least one strain sensor. The automation that can realize data triggers collection and remote synchronous transmission. Can realize the on -the -spot testing arrangement's of high -speed railway ballastless track - bridge structures dynamic response long -term observation.
Description
Technical field
The utility model relates to High Speed Rail Projects structural dynamic response technical field of measurement and test, and the car particularly relating to a kind of ballastless track of high-speed railway-Modular Bridge System causes the on-site testing device of vibratory response.
Background technology
Train high speed travels and runs with high density is the obvious characteristic of high-speed railway.When the high-speed cruising of train with more than 200km/h, the vibration of train and circuit will inevitably be aggravated, cause the increase of train and line construction interaction force, affect security and the comfortableness of driving simultaneously.
Built and in the high-speed railway built at present in the world, bridge occupies larger proportion in high-speed railway circuit, and vibration regularity and the roadbed difference of bridge are larger.For the high-speed railway bridge laying non-fragment orbit, non-fragment orbit and bridge structure form interactional system, and the vibration characteristics of non-fragment orbit-Modular Bridge System under train action of long-term load, deformation characteristic and Vibration propagation rule are the important component parts of high-speed railway research topic both at home and abroad at present.But existing theoretical research is still not deep enough, test simulation realizes comparatively difficulty.
In addition, because high-speed railway Window time is short, during train operation, circuit is forbidden personnel's operation, therefore also bring difficulty to on-the-spot test.Existing research spininess is to the dynamic response of bridge structure self, and the on-the-spot test about non-fragment orbit dynamic response is comparatively rare and the test duration is short mostly, point layout is insufficient.
Utility model content
For the defect that prior art exists, the purpose of this utility model is to provide a kind of ballastless track of high-speed railway and Box Girder Bridge dynamic system response on-site testing device, realizes comparatively difficulty to solve existing test simulation; Existing research spininess to the dynamic response of bridge structure self, the comparatively rare and technical matters that mostly test duration is short, point layout is insufficient of the on-the-spot test about non-fragment orbit dynamic response.
In order to realize above-mentioned technical purpose, the technical scheme of the utility model patent is: a kind of ballastless track of high-speed railway and Box Girder Bridge dynamic system response on-site testing device, comprise be laid on high speed rail train operation circuit and for test non-fragment orbit and bridge moving force-responsive Site Detection mechanism, for obtain data message from Site Detection mechanism and carry out data information transfer data acquisition mechanism and for it is believed that breath from data acquisition mechanism acquisition number and carrying out the remote control terminal that stores and analyze; Data acquisition mechanism is connected by wireless signal with between remote control terminal; Site Detection mechanism comprises at least one acceleration transducer, at least one displacement transducer and at least one strain transducer.
Further, acceleration transducer is laid at least one place in rail, track plates, bedplate, box girder bridge panel, bridge pier apical margin; Displacement transducer is laid at least one place in bedplate, box girder bridge panel, bridge pier apical margin; Strain transducer is laid at least one place in rail, case beam base plate lower edge.
Further, acceleration transducer is laid in rail, track plates, bedplate, box girder bridge panel and bridge pier apical margin respectively; Displacement transducer is laid in bedplate, box girder bridge panel and bridge pier apical margin respectively; Strain transducer is laid in rail and case beam base plate lower edge respectively.
Further, the acceleration transducer on rail or track plates is laid along vertical, the transverse direction of Box Girder Bridge structure or longitudinal direction, and acceleration transducer adopts high frequency sensors; Acceleration transducer on bedplate, box girder bridge panel or bridge pier apical margin is laid along vertical, the transverse direction of Box Girder Bridge structure or longitudinal direction, and acceleration transducer adopts low-frequency sensor.
Further, displacement transducer adopts displacement meter; Displacement meter on bedplate is laid along the transverse direction of Box Girder Bridge structure or longitudinal direction, and displacement meter is fixed on bedplate by Magnetic gauge stand, and the pointer of displacement meter is fixed on track plates by angle steel; Displacement meter on box girder bridge panel is laid along the transverse direction of Box Girder Bridge structure or longitudinal direction, and displacement meter is fixed on box girder bridge panel by Magnetic gauge stand, and the pointer of displacement meter is fixed on bedplate by angle steel; Displacement meter on bridge pier apical margin is laid along vertical, the transverse direction of Box Girder Bridge structure or longitudinal direction, and displacement meter is fixed on bridge pier apical margin by Magnetic gauge stand, and the pointer of displacement meter is directly fixed on case beam base plate lower edge by bonding agent.
Further, the strain transducer on rail is laid in web of the rail place outside rail, and strain transducer is centrally located on rail section central shaft; Strain transducer on case beam base plate lower edge is arranged in case beam base plate center, and arrangement is a slice active gage and a slice compensating plate.
Further, Site Detection mechanism is connected with data acquisition mechanism by test cable; Test cable according to type respectively colligation to become bunch of cables to extend into the case beam of Box Girder Bridge structure inner, and to be connected with the data acquisition mechanism of the case beam inside of Box Girder Bridge structure.
Further, the bunch of cables that rail, track plates, bedplate are connected with the Site Detection mechanism on box girder bridge panel is placed in outside the fender wall of Box Girder Bridge structure, and along Box Girder Bridge structure longitudinally every 5m by the inspection passage of fixation with steel wire in Box Girder Bridge structure, bunch of cables enters case beam inside by the bridge beam end expansion joint of Box Girder Bridge structure and is connected with data acquisition mechanism; It is inner that the bunch of cables that Site Detection mechanism on bridge pier apical margin connects enters case beam by the remarkable hole of beam-ends; The bunch of cables that Site Detection mechanism on described case beam base plate lower edge connects enters case beam inside by beam bottom outlet hole and is connected with data acquisition mechanism.
Further, data acquisition mechanism is connected with the wireless signal between remote control terminal and adopts wireless router, and wireless signal adopts 3G wireless signal or 4G wireless signal.
Further, data acquisition mechanism is connected with for providing the electric supply installation running the energy for data acquisition mechanism, and electric supply installation adopts at least one in self-charging battery, portable power source, external life electrical network.
Preferably, remote control terminal adopts the computer or the cell phone apparatus that carry out Long-distance Control.Carry out the computer of Long-distance Control or cell phone apparatus are equipped with the antenna for receiving wireless signal and can carry out the wireless network card of wireless transmission, download to realize long-range connection, optimum configurations, data acquisition and data.
Data acquisition mechanism carries out network connection by the wireless network card be inserted on wireless router, and remote control mechanism is by netting twine or wireless device access network.
Advantageous Effects of the present utility model is:
The utility model ballastless track of high-speed railway and Box Girder Bridge dynamic system response on-site testing device, can immediately test bullet train by time non-fragment orbit and the dynamic response at bridge key position place and vibration regularity, robotization triggering collection and the remote synchronous that can realize data transmit.The long-term observation of ballastless track of high-speed railway-bridge structure dynamic response on-site testing device can be realized.
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the ballastless track of high-speed railway of the utility model embodiment and the structural representation of Box Girder Bridge dynamic system response on-site testing device.
Marginal data:
1, acceleration transducer; 2, displacement transducer; 3, strain transducer; 4, data acquisition mechanism; 5, electric supply installation; 6, remote control terminal; 7, rail; 8, track plates; 9, bedplate; 10, box girder bridge panel; 11, bridge pier apical margin; 12, case beam base plate lower edge; 13, wireless router.
Embodiment
Further illustrating below to the utility model technology contents, but the restriction not to the utility model flesh and blood.
Fig. 1 is the ballastless track of high-speed railway of the utility model embodiment and the structural representation of Box Girder Bridge dynamic system response on-site testing device.As shown in Figure 1, the ballastless track of high-speed railway of the present embodiment and Box Girder Bridge dynamic system response on-site testing device, comprise be laid on high speed rail train operation circuit and for test non-fragment orbit and bridge moving force-responsive Site Detection mechanism, for obtain data message from Site Detection mechanism and carry out data information transfer data acquisition mechanism 4 and for obtaining data message from data acquisition mechanism 4 and carrying out the remote control terminal 6 that stores and analyze; Be connected by wireless signal between data acquisition mechanism 4 with remote control terminal 6; Site Detection mechanism comprises at least one acceleration transducer 1, at least one displacement transducer 2 and at least one strain transducer 3.The utility model ballastless track of high-speed railway and Box Girder Bridge dynamic system response on-site testing device, can immediately test bullet train by time non-fragment orbit and the dynamic response at bridge key position place and vibration regularity, robotization triggering collection and the remote synchronous that can realize data transmit.The long-term observation of ballastless track of high-speed railway-bridge structure dynamic response on-site testing device can be realized.
As shown in Figure 1, in the present embodiment, acceleration transducer 1 is laid at least one place in rail 7, track plates 8, bedplate 9, box girder bridge panel 10, bridge pier apical margin 11.Displacement transducer 2 is laid at least one place in bedplate 9, box girder bridge panel 10, bridge pier apical margin 11.Strain transducer 3 is laid at least one place in rail 7, case beam base plate lower edge 12.Mechanism for testing is distributed in the periphery of high speed rail train operation track, can not affect the driving safety of train, and accurately can test the dynamic response of non-fragment orbit that train high-speed cruising causes and bridge structure.
It is that car causes one of most important index of effect that beam body span centre moves displacement, and in existing test in the past for want of rest point as a reference, the Static Correction of the data of test beam body often.For accurately recording train through measuring point, for the absolute displacement (dynamic displacement) of test beam body, in abutment (pier), case girder span, 1/4 need set up the long full framing of the wide 2.7m of 1.8m across (only a place), bracket bottom must carry out ground hardening by the thick concrete of perfusion 50cm.After ground hardening, set up full framing when completing, adopt Magnetic gauge stand that displacement meter is fixed on cradle top in support the top, the pointer of displacement meter is fixed on beam body base plate lower edge with glue in advance.
As shown in Figure 1, in the present embodiment, acceleration transducer 1 is laid in rail 7, track plates 8, bedplate 9, box girder bridge panel 10 and bridge pier apical margin 11 respectively.Displacement transducer 2 is laid in bedplate 9, box girder bridge panel 10 and bridge pier apical margin 11 respectively.Strain transducer 3 is laid in rail 7 and case beam base plate lower edge 12 respectively.
As shown in Figure 1, in the present embodiment, the acceleration transducer 1 on rail 7 or track plates 8 is laid along vertical, the transverse direction of Box Girder Bridge structure or longitudinal direction.Acceleration transducer 1 adopts high frequency sensors.Acceleration transducer 1 on bedplate 9, box girder bridge panel 10 or bridge pier apical margin 11 is laid along vertical, the transverse direction of Box Girder Bridge structure or longitudinal direction.Acceleration transducer 1 adopts low-frequency sensor.
As shown in Figure 1, in the present embodiment, displacement transducer 2 adopts displacement meter.Displacement meter on bedplate 9 is laid along the transverse direction of Box Girder Bridge structure or longitudinal direction, and displacement meter is fixed on bedplate 9 by Magnetic gauge stand, and the pointer of displacement meter is fixed on track plates 8 by angle steel.Displacement meter on box girder bridge panel 10 is laid along the transverse direction of Box Girder Bridge structure or longitudinal direction, and displacement meter is fixed on box girder bridge panel 10 by Magnetic gauge stand, and the pointer of displacement meter is fixed on bedplate 9 by angle steel.Displacement meter on bridge pier apical margin 11 is laid along vertical, the transverse direction of Box Girder Bridge structure or longitudinal direction, and displacement meter is fixed on bridge pier apical margin 11 by Magnetic gauge stand, and the pointer of displacement meter is directly fixed on case beam base plate lower edge 12 by bonding agent.
As shown in Figure 1, in the present embodiment, the strain transducer 3 on rail 7 is laid in web of the rail place outside rail 7, and strain transducer 3 is centrally located on rail section central shaft.Strain transducer 3 on case beam base plate lower edge 12 is arranged in case beam base plate center, and arrangement is a slice active gage and a slice compensating plate.
As shown in Figure 1, in the present embodiment, Site Detection mechanism is connected with data acquisition mechanism 4 by test cable.Test cable according to type respectively colligation to become bunch of cables to extend into the case beam of Box Girder Bridge structure inner, and to be connected with the data acquisition mechanism 4 of the case beam inside of Box Girder Bridge structure.
As shown in Figure 1, in the present embodiment, the bunch of cables that rail 7, track plates 8, bedplate 9 are connected with the Site Detection mechanism on box girder bridge panel 10 is placed in outside the fender wall of Box Girder Bridge structure, and along Box Girder Bridge structure longitudinally every 5m by the inspection passage of fixation with steel wire in Box Girder Bridge structure, bunch of cables enters case beam inside by the bridge beam end expansion joint of Box Girder Bridge structure and is connected with data acquisition mechanism 4.It is inner that the bunch of cables that Site Detection mechanism on bridge pier apical margin 11 connects enters case beam by the remarkable hole of beam-ends.The bunch of cables that Site Detection mechanism on case beam base plate lower edge 12 connects enters case beam inside by beam bottom outlet hole and is connected with data acquisition mechanism 4.
As shown in Figure 1, in the present embodiment, the wireless signal between data acquisition mechanism 4 with remote control terminal 6 is connected and adopts wireless router 13.Wireless signal adopts 3G wireless signal or 4G wireless signal.
As shown in Figure 1, in the present embodiment, data acquisition mechanism 4 is connected with for providing the electric supply installation 5 running the energy for data acquisition mechanism 4.Electric supply installation 5 adopts at least one in self-charging battery, portable power source, external life electrical network.
During enforcement, a kind of ballastless track of high-speed railway and bridge structure dynamic response on-site testing device are provided, comprise be laid on high speed rail train operation circuit for test non-fragment orbit and bridge moving force-responsive multiple sensors, for the dynamic response data acquisition mechanism 4 of data acquisition, the electric supply installation 5 of powering to data acquisition mechanism 4 and the remote control terminal 6 by wireless signal control data collecting mechanism 4.Mechanism for testing is distributed in the periphery of high speed rail train operation track, can not affect the driving safety of train, and accurately can test the dynamic response of non-fragment orbit that train high-speed cruising causes and bridge structure.
Above-mentioned dynamic response tests multiple sensor, comprises acceleration transducer 1, displacement transducer 2 and strain transducer 3 three types.
The installation position of acceleration transducer 1 is rail 7, track plates 8, bedplate 9, box girder bridge panel 10 and bridge pier.Acceleration transducer 1 wherein on rail 7, track plates 8 comprises vertically, transverse direction, longitudinally three kinds, adopts high frequency sensors.Acceleration transducer 1 on bedplate 9, box girder bridge panel 10 and bridge pier apical margin 11 comprises vertically, transverse direction, longitudinally three kinds, adopts low-frequency sensor.
The installation position of displacement transducer 2 is bedplate 9, box girder bridge panel 10 and bridge pier.Displacement transducer 2 on bedplate 9, comprise transverse direction, longitudinal direction two kinds, be fixed on bedplate 9 by Magnetic gauge stand, the pointer of displacement meter is fixed on track plates 8 by angle steel.Displacement transducer 2 on box girder bridge panel 10, comprise transverse direction, longitudinal direction two kinds, be fixed on box girder bridge panel 10 by Magnetic gauge stand, the pointer of displacement meter is fixed on bedplate 9 by angle steel.Displacement transducer 2 on bridge pier, comprise vertical, transverse direction, longitudinally three kinds, be fixed on bridge pier apical margin 11 by Magnetic gauge stand, the pointer of displacement meter is directly fixed on case beam base plate lower edge 12 by bonding agent.Displacement meter test be relative displacement between track plates and bedplate, between bedplate and bridge, at the bottom of beam and between pier top.
The position of strain transducer 3 comprises rail 7 and case beam base plate lower edge 12.In rail 7, strain transducer 3 position is web of the rail place outside rail 7, and strain transducer 3 is centrally located on rail section central shaft.In case beam base plate lower edge 12, strain transducer 3 is arranged in case beam base plate center, and arrangement is a slice active gage a slice compensating plate.
The test cable that rail 7, track plates 8, bedplate 9 are connected with all sensors on box girder bridge panel 10 according to type respectively colligation become bunch of cables, be positioned over outside fender wall, longitudinally arrange with line parallel, every 5m by fixation with steel wire in inspection passage, enter case beam by bridge beam end expansion joint inner.It is inner that the bunch of cables that all sensors on bridge pier apical margin 11 connects enters case beam by the remarkable hole of beam-ends.It is inner that the bunch of cables that on case beam base plate lower edge 12, strain transducer connects enters case beam by beam bottom outlet hole.
Electric supply installation 5 is movable power source, lies in a horizontal plane near data acquisition mechanism 4.
Realize by arranging Acquisition Instrument trigger value the automatic collection that train leads to outdated data, or by the equipment such as computer or mobile phone, data are manually gathered.
Lay wireless router 13 in case beam, wireless signal adopts 3G wireless signal or 4G wireless signal.Data acquisition mechanism 4 carries out network connection by the wireless network card be inserted on wireless router 13, and remote control mechanism is by netting twine or wireless device access network.
The test cable that above-mentioned all sensors connects is connected with data acquisition mechanism 4 after entering case beam inside.Data acquisition automatically gathers according to the automatic Trigger Function that Acquisition Instrument (data acquisition mechanism 4) is arranged or is manually gathered by long-range PC computer (remote control terminal 6).Test data is transferred to long-range PC computer by wireless network by data acquisition mechanism 4.
The Specific construction process of the ballastless track of high-speed railway-Modular Bridge System dynamic response on-site testing device of the present embodiment is as follows:
Select line Window time, in bridge span, 1/4 across the rail 7 of the key sections such as, beam-ends, track plates 8, bedplate 9, the place such as box girder bridge panel 10 and bridge pier apical margin 11, with below sand papering rail 7 and in outer siding track, use absorbent cotton to clear up each correct position, after water-resistant adhesives is smeared in degree of will speed up sensor 1 bottom surface, be fixed to correct position.
Use the track plates 8 of absorbent cotton cleaning key sections, bedplate 9 and box girder bridge panel 10 and correct position place, the pointer of displacement meter (displacement transducer 2) is fixed on track plates 8 or bedplate 9 by angle steel, water-resistant adhesives is smeared in the ready Magnetic gauge stand bottom surface with displacement meter (displacement transducer 2) and is fixed on bedplate 9 or box girder bridge panel 10, regulate displacement meter measurement direction by Magnetic gauge stand; Similar, use the correct position place of the bridge pier apical margin 11 of absorbent cotton cleaning key sections, use bonding agent to be directly fixed on case beam base plate lower edge 12 on the pointer of displacement meter (displacement transducer 2), water-resistant adhesives is smeared in the Magnetic gauge stand bottom surface with displacement meter (displacement transducer 2) and is fixed on bridge pier apical margin 11.
Use rail 7 web of the rail position outside sand papering test point, use absorbent cotton to clean out, strain transducer 3 center adheres on rail section central shaft, and arrangement is 45 degree of strain rosettes.By arranging 45 degree of strain rosettes on rail, when being passed a bridge by train, the reading of strain rosette test data on rail, can calculate the speed of train through measuring point, can obtain the dynamic response of track-Modular Bridge System and the relation of speed and Changing Pattern.Use absorbent cotton wash-up tray beam base plate lower edge 12 center, adhere on center at the bottom of beam after strain strain transducer 3 is smeared bonding agent, arrangement is a slice active gage a slice compensating plate.
After sensor has been arranged, waterproof bag on all the sensors testing element cover is carried out waterproof and dampproof process.
The test cable that all the sensors (bridge pier apical margin 11 with case beam base plate lower edge 12 except) is connected according to type respectively colligation become bunch of cables, be positioned over outside fender wall, longitudinally arrange with line parallel, every 5m by fixation with steel wire in inspection passage, enter case beam by bridge beam end expansion joint inner; It is inner that the bunch of cables connected by the sensor of bridge pier apical margin 11 enters case beam by the remarkable hole of beam-ends; It is inner that the bunch of cables connected by strain transducer 3 on case beam base plate lower edge 12 enters case beam by beam bottom outlet hole.
Then, bunch of cables is connected with data acquisition mechanism 4, after carrying out optimum configurations, can dynamic response test be carried out.
Ballastless track of high-speed railway-Modular Bridge System dynamic response on-site testing device, can immediately test bullet train by time non-fragment orbit and the dynamic response at bridge key position place and vibration regularity, robotization triggering collection and the remote synchronous that can realize data transmit; And wire laying mode and equipment installation site rationally, can realize the long-term observation of ballastless track of high-speed railway-bridge structure dynamic response on-site testing device in the present embodiment.
The foregoing is only preferred embodiment of the present utility model; not thereby protection domain of the present utility model is limited; every equivalent structure transformation utilizing the utility model description to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. ballastless track of high-speed railway and a Box Girder Bridge dynamic system response on-site testing device, is characterized in that,
Comprise be laid on high speed rail train operation circuit and for test non-fragment orbit and bridge moving force-responsive Site Detection mechanism, for obtain data message from Site Detection mechanism and carry out data information transfer data acquisition mechanism (4) and for obtaining data message from described data acquisition mechanism (4) and carrying out the remote control terminal (6) that stores and analyze;
Described data acquisition mechanism (4) is connected by wireless signal with between described remote control terminal (6);
Described Site Detection mechanism comprises at least one acceleration transducer (1), at least one displacement transducer (2) and at least one strain transducer (3).
2. ballastless track of high-speed railway according to claim 1 and Box Girder Bridge dynamic system response on-site testing device, is characterized in that,
Described acceleration transducer (1) is laid at least one place in rail (7), track plates (8), bedplate (9), box girder bridge panel (10), bridge pier apical margin (11);
Institute's displacement sensors (2) is laid at least one place in bedplate (9), box girder bridge panel (10), bridge pier apical margin (11);
Described strain transducer (3) is laid at least one place in rail (7), case beam base plate lower edge (12).
3. ballastless track of high-speed railway according to claim 2 and Box Girder Bridge dynamic system response on-site testing device, is characterized in that,
Described acceleration transducer (1) is laid in rail (7), track plates (8), bedplate (9), box girder bridge panel (10) and bridge pier apical margin (11) respectively;
Institute's displacement sensors (2) is laid in bedplate (9), box girder bridge panel (10) and bridge pier apical margin (11) respectively;
Described strain transducer (3) is laid in rail (7) and case beam base plate lower edge (12) respectively.
4. ballastless track of high-speed railway according to claim 2 and Box Girder Bridge dynamic system response on-site testing device, is characterized in that,
Described acceleration transducer (1) on described rail (7) or described track plates (8) is laid along vertical, the transverse direction of Box Girder Bridge structure or longitudinal direction, and described acceleration transducer (1) adopts high frequency sensors;
Described acceleration transducer (1) on described bedplate (9), described box girder bridge panel (10) or described bridge pier apical margin (11) is laid along vertical, the transverse direction of Box Girder Bridge structure or longitudinal direction, and described acceleration transducer (1) adopts low-frequency sensor.
5. ballastless track of high-speed railway according to claim 2 and Box Girder Bridge dynamic system response on-site testing device, is characterized in that,
Institute's displacement sensors (2) adopts displacement meter;
Described displacement meter on described bedplate (9) is laid along the transverse direction of Box Girder Bridge structure or longitudinal direction, described displacement meter is fixed on described bedplate (9) by Magnetic gauge stand, and the pointer of described displacement meter is fixed on described track plates (8) by angle steel;
Described displacement meter on described box girder bridge panel (10) is laid along the transverse direction of Box Girder Bridge structure or longitudinal direction, described displacement meter is fixed on described box girder bridge panel (10) by Magnetic gauge stand, and the pointer of described displacement meter is fixed on described bedplate (9) by angle steel;
Described displacement meter on described bridge pier apical margin (11) is laid along vertical, the transverse direction of Box Girder Bridge structure or longitudinal direction, displacement meter is fixed on described bridge pier apical margin (11) by Magnetic gauge stand, and the pointer of described displacement meter is directly fixed on described case beam base plate lower edge (12) by bonding agent.
6. ballastless track of high-speed railway according to claim 2 and Box Girder Bridge dynamic system response on-site testing device, is characterized in that,
Described strain transducer (3) on described rail (7) is laid in web of the rail place, described rail (7) outside, and described strain transducer (3) is centrally located on rail section central shaft;
Described strain transducer (3) on described case beam base plate lower edge (12) is arranged in case beam base plate center, and arrangement is a slice active gage and a slice compensating plate.
7. the ballastless track of high-speed railway according to any one of claim 2 to 6 and Box Girder Bridge dynamic system response on-site testing device, is characterized in that,
Described Site Detection mechanism is connected with described data acquisition mechanism (4) by test cable;
Described test cable according to type respectively colligation to become bunch of cables to extend into the case beam of Box Girder Bridge structure inner, and to be connected with the described data acquisition mechanism (4) of the case beam inside of Box Girder Bridge structure.
8. ballastless track of high-speed railway according to claim 7 and Box Girder Bridge dynamic system response on-site testing device, is characterized in that,
The bunch of cables that described rail (7), described track plates (8), described bedplate (9) are connected with the described Site Detection mechanism on described box girder bridge panel (10) is placed in outside the fender wall of Box Girder Bridge structure, and along Box Girder Bridge structure longitudinally every 5m by the inspection passage of fixation with steel wire in Box Girder Bridge structure, bunch of cables enters case beam inside by the bridge beam end expansion joint of Box Girder Bridge structure and is connected with described data acquisition mechanism (4);
It is inner that the bunch of cables that described Site Detection mechanism on described bridge pier apical margin (11) connects enters case beam by the remarkable hole of beam-ends;
The bunch of cables that described Site Detection mechanism on described case beam base plate lower edge (12) connects enters case beam inside by beam bottom outlet hole and is connected with described data acquisition mechanism (4).
9. ballastless track of high-speed railway according to any one of claim 1 to 6 and Box Girder Bridge dynamic system response on-site testing device, is characterized in that,
Described data acquisition mechanism (4) is connected with the wireless signal between described remote control terminal (6) and adopts wireless router (13), and wireless signal adopts 3G wireless signal or 4G wireless signal.
10. ballastless track of high-speed railway according to any one of claim 1 to 6 and Box Girder Bridge dynamic system response on-site testing device, is characterized in that,
Described data acquisition mechanism (4) is connected with for providing the electric supply installation (5) running the energy for described data acquisition mechanism (4),
Described electric supply installation (5) adopts at least one in self-charging battery, portable power source, external life electrical network.
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| CN201520623790.9U CN204903193U (en) | 2015-08-18 | 2015-08-18 | High -speed railway ballastless track and on --spot testing arrangement of box bridge system power response |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405783A (en) * | 2020-03-16 | 2021-09-17 | 中南大学 | Ballastless track geometric shape and position change simulation test bed based on bridge pier deformation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113405783A (en) * | 2020-03-16 | 2021-09-17 | 中南大学 | Ballastless track geometric shape and position change simulation test bed based on bridge pier deformation |
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