CN202853872U - Bridge railway track five-freedom-degree earthquake simulation vibration device - Google Patents
Bridge railway track five-freedom-degree earthquake simulation vibration device Download PDFInfo
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- CN202853872U CN202853872U CN 201220572817 CN201220572817U CN202853872U CN 202853872 U CN202853872 U CN 202853872U CN 201220572817 CN201220572817 CN 201220572817 CN 201220572817 U CN201220572817 U CN 201220572817U CN 202853872 U CN202853872 U CN 202853872U
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Abstract
The utility model provides a bridge railway track five-freedom-degree earthquake simulation vibration device. Ends of each beam body of a bridge are placed on the side plates of box type bases, the upper surface of each beam body is installed with tracks; a horizontal electro-hydraulic servo actuator, a left-side vertical electro-hydraulic servo actuator and a right-side vertical electro-hydraulic servo actuator are hinged onto the baseboard of each box type base; the actuator end of the horizontal electro-hydraulic servo actuator is hinged onto the side surface of the beam body of the bridge through a vertical connecting rod and a transverse connecting rod successively, the middle portion of the vertical connecting rod is further hinged onto the supporting block of the box type base; and actuator ends of the left-side vertical electro-hydraulic servo actuator and the right-side vertical electro-hydraulic servo actuator both are hinged onto the bottom of the beam body. According to the utility model, five-freedom-degree movements, such as the up and down translation, the left and right translation, the rolling movement, the nodding movement, the headshaking movement, etc., of the tracks can be realized, and the bridge railway track earthquake waves and the line large distortion deformation generated by an earthquake can be simulated, so the incentive data of the earthquake waves can be acquired for providing an important experimental basis for the railway train operation safety, the structure earthquake-resistant design and the safety operation and management.
Description
Technical field
The utility model relates to railroad track five degree of freedom earthquake simulation vibrating device on a kind of bridge.
Background technology
Earthquake is a kind of strenuous exercise of earth's crust burst; the annual earthquake that different earthquake magnitudes all will occur repeatedly in the world wide; especially earth movement recent years is very active; China's Seismicity frequency is high, intensity is large, focus is shallow, distribution is wide; it is a country that earthquake disaster is serious; since 20th century, twice earthquakes more than seven grades of average approximately generation in per 3 years.The especially larger earthquake of earthquake magnitude and energy of earthquake brings serious loss with the communal facility product for the people's life, basis.For railway, when larger earthquake occurs, huge energy will cause pavement cracking, curved in tracks, even cause derail.Especially the train that moves at bridge, when earthquake occurs the easier cracking of bridge, cave in, cause serious accident; And high-speed railway generally adopts Viaduct Structure, the bridge highway section accounting that train passes through is very large, in order to guarantee the bullet train safe operation, be necessary very much the Study of Seismic hazardous condition to the impact of train operational safety, carry out the experimental study of earthquake disaster condition Train operational safety performance.
The utility model content
The purpose of this utility model provides railroad track five degree of freedom earthquake simulation vibrating device on a kind of bridge, this testing table can be realized the upper and lower translation of track, left and right sides translation, roll, nod, five degree of freedom motions such as shake the head, the experimental study that moves attitude for railroad train under the earthquake disaster environment provides a cover complete external drive mode, thereby the circuit that railroad track seismic event or seismic stimulation and earthquake produce on complete simulation bridge distortion large deformation, and then obtain the excited data of seismic event, be railway operation safety and seismic design of structures, the safe operation management provides important test basis.
The utility model is realized its goal of the invention, the technical scheme that adopts is: railroad track five degree of freedom earthquake simulation vibrating device on a kind of bridge, it is characterized in that: the end of every section beam body of bridge places on the side plate of box type substructure, the end of beam body also links to each other with the base plate of box type substructure by the exciting unit, and the upper surface of beam body is equipped with track; The formation of described exciting unit is: the vertical electro-hydraulic servo actuator in horizontal electro-hydraulic servo actuator and left side, the vertical electro-hydraulic servo actuator in right side all are articulated on the base plate of box type substructure, the moved end of doing of horizontal electro-hydraulic servo actuator is articulated in side with the beam body of bridge by vertical connecting rod, tranverse connecting rod successively, and the vertical connecting rod middle part also is articulated on the back-up block of box type substructure; The vertical electro-hydraulic servo actuator in left side and the vertical electro-hydraulic servo actuator in right side do the bottom that the moved end all is hinged on the beam body.
Process of the test of the present utility model is:
Horizontal electro-hydraulic servo actuator perseveration in the box type substructure under arbitrary section beam end of body of bridge drives vertical connecting rod and rotates around its middle part articulated position, and the vertical connecting rod upper end drives the tranverse connecting rod translation, thereby provides lasting horizontal exciting force for the beam body of bridge.When the horizontal exciting force that provides when the horizontal electro-hydraulic servo actuator under two ends of this section beam body was synchronous, this section beam body and track thereof produced distortion and the vibration of left and right sides translation; When the horizontal exciting force that provides when the horizontal electro-hydraulic servo actuator under two ends of this section beam body was asynchronous, this section beam body and track thereof produced distortion and the vibration of the direction of shaking the head.
The vertical electro-hydraulic servo actuator of the vertical electro-hydraulic servo actuator in left side and right side in the box type substructure under arbitrary section beam end of body of bridge directly is continuously applied two independently vertical exciting forces to the beam body of bridge.When the vertical exciting force that provides when all the vertical electro-hydraulic servo actuators under two ends of this section beam body is synchronous, this section beam body and track thereof will produce distortion and the vibration of upper and lower translation; When the vertical exciting force that provides when the vertical electro-hydraulic servo actuator under end of this section beam body and the another one end was asynchronous, this section beam body and track thereof were with generation nod distortion and the vibration of direction; When the vertical exciting force that provides when the vertical electro-hydraulic servo actuator of the vertical electro-hydraulic servo actuator in left side and right side under this section beam end of body is asynchronous, this section beam body and track thereof will produce distortion and the vibration of rotating direction.
Because each actuator is independent controlled, therefore above left and right sides translation, shake the head, the motion of upper and lower translation, rolling, first-class five directions of point can produce separately, also can combination in any, produce simultaneously.The controlled-deformation of each section beam body is also fully independent with vibration, all the beam bodies can be simultaneously or time-delay synchronous or nonsynchronous deformation vibration occurs; Each section beam body also can be separately and the part mode carry out distortion and the vibration of combination in any.
After the beam body produces vibration and distortion, train is run at high speed by the track on the beam body, simultaneously the test parameterss such as vibration acceleration, wheel-rail lateral force, derailment coefficients and train operation attitude of test and track record displacement, track vibration acceleration, beam displacement body, beam body.After train passes through, stop exciting, off-test.The test parameters that test obtains and exciting data can be earthquake disaster environment Train security of operation Journal of Sex Research provides more authentic and valid test figure.
Compared with prior art, the beneficial effects of the utility model are:
Testing table of the present utility model can be realized upper and lower translation, the left and right sides translation of railroad track on the bridge, five degree of freedom motions such as roll, nod, shake the head, the experimental study that moves attitude for railroad train under the earthquake disaster environment provides a cover complete external drive mode, the circuit distortion large deformation that railroad track seismic event or seismic stimulation and earthquake produce on the complete various bridges of simulation more comprehensively, and then obtain the excited data of seismic event, for railway operation safety and seismic design of structures, safe operation management provide important test basis.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Description of drawings
Fig. 1 is the left TV structure schematic diagram of the utility model embodiment.
Fig. 2 is the A-A cutaway view Amplified image of Fig. 1.
Fig. 3 is that the structure for amplifying schematic diagram is looked on the left side of the utility model embodiment exciting unit (having removed side plate, the beam body of box type substructure).
Fig. 4 is that the master of the utility model embodiment exciting unit (having removed side plate, the beam body of box type substructure) looks the structure for amplifying schematic diagram.
Fig. 5 be the utility model embodiment exciting unit (having removed side plate, the beam body of box type substructure) overlook the structure for amplifying schematic diagram.
Embodiment
Embodiment
Fig. 1～5 illustrate, a kind of embodiment of the present utility model is: on a kind of bridge in the railroad track five degree of freedom earthquake simulation vibrating device, the end of every section beam body 1 of bridge places on the side plate of box type substructure 3, the end of beam body 1 also links to each other with the base plate of box type substructure 3 by the exciting unit, and the upper surface of beam body 1 is equipped with track 2; The formation of described exciting unit is: the vertical electro-hydraulic servo actuator 41 in horizontal electro-hydraulic servo actuator 43 and left side, the vertical electro-hydraulic servo actuator 42 in right side all are articulated on the base plate of box type substructure 3, the moved end of doing of horizontal electro-hydraulic servo actuator 43 is articulated in side with the beam body 1 of bridge by vertical connecting rod 51, tranverse connecting rod 52 successively, and vertical connecting rod 51 middle parts also are articulated on the back-up block 31 of box type substructure 3; The vertical electro-hydraulic servo actuator 41 in left side and the vertical electro-hydraulic servo actuator 42 in right side do the bottom that the moved end all is hinged on beam body 1.
This testing table can be realized upper and lower translation, the left and right sides translation of track, five degree of freedom motions such as roll, nod, shake the head, the experimental study that moves attitude for railroad train under the earthquake disaster environment provides a cover complete external drive mode, thereby the circuit that railroad track seismic event or seismic stimulation and earthquake produce on complete simulation bridge distortion large deformation, and then obtain the excited data of seismic event, for railway operation safety and seismic design of structures, safe operation management provide important test basis.
Claims (1)
1. railroad track five degree of freedom earthquake simulation vibrating device on the bridge, it is characterized in that: the end of every section beam body (1) of bridge places on the side plate of box type substructure (3), the end of beam body (1) also links to each other with the base plate of box type substructure (3) by the exciting unit, and the upper surface of beam body (1) is equipped with track (2); The formation of described exciting unit is: the vertical electro-hydraulic servo actuator of horizontal electro-hydraulic servo actuator (43) and left side (41), the vertical electro-hydraulic servo actuator in right side (42) all are articulated on the base plate of box type substructure (3), the moved end of doing of horizontal electro-hydraulic servo actuator (43) is articulated in side with the beam body (1) of bridge by vertical connecting rod (51), tranverse connecting rod (52) successively, and vertical connecting rod (51) middle part also is articulated on the back-up block (31) of box type substructure (3); The vertical electro-hydraulic servo actuator (41) in left side and the vertical electro-hydraulic servo actuator in right side (42) do the bottom that the moved end all is hinged on beam body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220572817 CN202853872U (en) | 2012-11-02 | 2012-11-02 | Bridge railway track five-freedom-degree earthquake simulation vibration device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220572817 CN202853872U (en) | 2012-11-02 | 2012-11-02 | Bridge railway track five-freedom-degree earthquake simulation vibration device |
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| CN202853872U true CN202853872U (en) | 2013-04-03 |
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| CN 201220572817 Expired - Lifetime CN202853872U (en) | 2012-11-02 | 2012-11-02 | Bridge railway track five-freedom-degree earthquake simulation vibration device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937508A (en) * | 2012-11-02 | 2013-02-20 | 西南交通大学 | Five-freedom-degree earthquake simulation vibrating table for on-bridge railway tracks |
| CN103575489A (en) * | 2013-10-11 | 2014-02-12 | 浙江大学 | Double-table-top large-displacement three-axis six-degree-of-freedom earthquake shaking simulation device and method |
| CN103674585A (en) * | 2013-12-03 | 2014-03-26 | 南车青岛四方机车车辆股份有限公司 | Rail vehicle operation performance testing device |
| CN103698139A (en) * | 2013-12-03 | 2014-04-02 | 南车青岛四方机车车辆股份有限公司 | Testing method of railway vehicle flexibility coefficient |
| CN104655376A (en) * | 2015-01-15 | 2015-05-27 | 中南大学 | Collision effect analysis method for bridge-track system under action of earthquake |
| CN107063625A (en) * | 2017-06-12 | 2017-08-18 | 中南大学 | A kind of device for bridge testing model force exciting |
| CN107271205A (en) * | 2017-06-13 | 2017-10-20 | 中车齐齐哈尔车辆有限公司 | Rolling stock is delayed unloading the fatigue experimental device and fatigue test method of beam |
| CN109374245A (en) * | 2018-09-19 | 2019-02-22 | 武汉理工大学 | A kind of bridge power high precision testing device |
-
2012
- 2012-11-02 CN CN 201220572817 patent/CN202853872U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937508A (en) * | 2012-11-02 | 2013-02-20 | 西南交通大学 | Five-freedom-degree earthquake simulation vibrating table for on-bridge railway tracks |
| CN102937508B (en) * | 2012-11-02 | 2015-08-05 | 西南交通大学 | Railroad track five degree of freedom earthquake simulation shaking table on bridge |
| CN103575489A (en) * | 2013-10-11 | 2014-02-12 | 浙江大学 | Double-table-top large-displacement three-axis six-degree-of-freedom earthquake shaking simulation device and method |
| CN103575489B (en) * | 2013-10-11 | 2015-11-04 | 浙江大学 | Dual stage face Large travel range Triaxiality and six degrees of freedom earthquake simulation vibrating device and method |
| CN103674585A (en) * | 2013-12-03 | 2014-03-26 | 南车青岛四方机车车辆股份有限公司 | Rail vehicle operation performance testing device |
| CN103698139A (en) * | 2013-12-03 | 2014-04-02 | 南车青岛四方机车车辆股份有限公司 | Testing method of railway vehicle flexibility coefficient |
| CN104655376A (en) * | 2015-01-15 | 2015-05-27 | 中南大学 | Collision effect analysis method for bridge-track system under action of earthquake |
| CN107063625A (en) * | 2017-06-12 | 2017-08-18 | 中南大学 | A kind of device for bridge testing model force exciting |
| CN107271205A (en) * | 2017-06-13 | 2017-10-20 | 中车齐齐哈尔车辆有限公司 | Rolling stock is delayed unloading the fatigue experimental device and fatigue test method of beam |
| CN107271205B (en) * | 2017-06-13 | 2019-09-20 | 中车齐齐哈尔车辆有限公司 | Rolling stock is delayed unloading the fatigue experimental device and fatigue test method of beam |
| CN109374245A (en) * | 2018-09-19 | 2019-02-22 | 武汉理工大学 | A kind of bridge power high precision testing device |
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Granted publication date: 20130403 |