CN205785735U - A kind of anti-seismic performance of beam bridge analogue experiment installation - Google Patents
A kind of anti-seismic performance of beam bridge analogue experiment installation Download PDFInfo
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- CN205785735U CN205785735U CN201620616774.1U CN201620616774U CN205785735U CN 205785735 U CN205785735 U CN 205785735U CN 201620616774 U CN201620616774 U CN 201620616774U CN 205785735 U CN205785735 U CN 205785735U
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Abstract
The utility model discloses a kind of anti-seismic performance of beam bridge analogue experiment installation, including the parameter selection unit being sequentially connected with, analogue simulation unit, vibration table array unit, signal processing unit and control unit, parameter selection unit includes the architectural characteristic module for storing bridge Each part type, for storing seismic wave component module and the self-vibration characteristic module of seismic wave type.By using the array mode of multiple stage small vibrating platform combination, can need the combination carrying out multi-form that large scale, multidimensional, the structure of multiple spot Seismic input are carried out shock test according to multiple span bridge girder construction, separate unit test can also be carried out, use all-digitized demodulator, can eliminate simulation control in electronic devices and components by defects such as temperature humidity are affected, the stability of raising system, reliability and accuracy, test operation is simple.The connection of networking is capable of network cooperating experiment.
Description
[technical field]
This utility model belongs to bridge earthquake resistance technical field, is specifically related to a kind of viaduct girder construction anti-seismic performance simulation real
Experiment device.
[background technology]
Earthquake is the strenuous exercise of a kind of earth's crust burst, and the ground of different earthquake magnitude will occur in world wide repeatedly every year
Shake, especially recent years, crustal movement was the most active, and China's Seismicity frequency is high, intensity is big, focus is shallow, distribution is wide, is
, since 20th century, averagely there are twice more than seven grades earthquakes every about 3 years in the country that one earthquake disaster is serious.Earthquake is outstanding
It is the earthquake that earthquake magnitude is bigger with energy, brings serious loss to the life of the people, basis with communal facility product.In recent years,
City multilevel interchange structure is developed rapidly in China, and clover leaf Main Trends of The Development after will becoming, due to
This structure pier stud stress is complex so that the anti-seismic problem ratio of such bridge is more prominent, both at home and abroad to this type of Modular Bridge System
Research less, specification to this also without clear and definite regulation.The anti-seismic performance problem of a multilamellar bridge the most still blank.
Owing to bridge earthquake model is mass motion, it is impossible to the ground brought by the relative motion of simulation regional area
Shake impact reflects overall condition, at present, large vibration table investment is relatively big, maintenance cost and testing expenses the most costly, build
The factors such as the cycle is longer, by increasing the scale the most not science of earthquake simulation shaking table, for slender types such as multispan bridges
Structure cannot be carried out experiment, and due to the likelihood ratio, only cannot meet requirement by increase vibration table scale.
[utility model content]
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, it is provided that a kind of right
The analogue experiment installation that viaduct girder construction anti-seismic performance is analyzed.
This utility model is by the following technical solutions:
A kind of anti-seismic performance of beam bridge analogue experiment installation, including the parameter selection unit being sequentially connected with, analogue simulation unit,
Vibration table array unit, signal processing unit and control unit, described parameter selection unit includes for storing bridge each several part
The architectural characteristic module of structure type, for storing seismic wave component module and the self-vibration characteristic module of seismic wave type, logical
The parameter crossing multiple span bridge girder construction and seismic wave selects, utilize vibration table array unit realize to the large scale of multi-form,
Multidimensional, multiple spot earthquake carry out bridge earthquake resistance test.
Preferably, described architectural characteristic module includes top type memory module, bottom type memory module and attached class
Type memory module, selects the type of structural load weight, pier stud and the bearing of bridge according to construction module.
Preferably, described seismic wave component module includes compressional wave memory module, shear wave memory module dough-making powder ripple memory module,
Need to select multi-directional Earthquake ripple to realize true simulation according to experiment.
Preferably, described vibration table array unit includes information acquisition module, hydraulic machinery module and multiple three dimensional earthquake
Vibration table, is connected with control unit by described signal processing unit respectively, by information acquisition module, hydraulic machinery module pair
Array unit Global Information gathers and controls, simple to operate, measures accurately.
Preferably, described information acquisition module includes strain transducer, displacement transducer and acceleration transducer, it is possible to real
Time gather the bridge each item data when antidetonation is simulated.
Preferably, described three dimensional earthquake vibration table includes three three dimensional earthquake vibration tablies, can carry out according to experiment needs
Array combination, it is achieved different tests is measured, and effectively save cost.
Preferably, described control unit is also associated with the NE for data transmission, it is possible to realize network transmission dynamic
State multiparameter contrasts.
Compared with prior art, this utility model at least has the advantages that
By using the array mode of multiple stage small vibrating platform combination, can need to carry out difference according to multiple span bridge girder construction
The combination of form carries out shock test to large scale, multidimensional, the structure of multiple spot Seismic input, it is also possible to carry out separate unit test, group
Dress motility is high, and dismounting is easy and is easy to safeguard.Whole experiment structure, seismic wave type and bridge to bridge each several part respectively
The self-vibration characteristic parameter of beam self selects, it is possible to truly reflect anti-seismic performance of beam bridge.
Use totally digitized control, electronic devices and components in simulation control can be eliminated and, by defects such as temperature humidity are affected, carry
The stability of high system, reliability and accuracy, by data and the setup parameter comparison that will gather, quickly obtain bridge earthquake resistance
Performance, test operation is simple, low cost, and measurement result precision is high, and the connection of networking is capable of network cooperating experiment.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
[accompanying drawing explanation]
Fig. 1 is that system of the present utility model forms schematic diagram.
[detailed description of the invention]
Referring to shown in Fig. 1, this utility model provides a kind of anti-seismic performance of beam bridge analogue experiment installation, selects including parameter
Selecting unit, parameter selection unit sequentially passes through analogue simulation unit, vibration table array unit, signal processing unit and control unit
Connecting, parameter selection unit includes the architectural characteristic module for storing bridge Each part type, for storing seismic wave
The seismic wave component module of type and self-vibration characteristic module, architectural characteristic module includes top type memory module, lower category
Type memory module and attached type memory module, seismic wave component module includes compressional wave memory module, shear wave memory module dough-making powder
Ripple memory module, sets up model by analogue simulation unit, control unit control vibration table array unit and carry out bridge earthquake resistance
Test.
Particularly as follows: carried out each unit type of choice structure bridge by architectural characteristic module, specifically include superstructure (beam bridge,
Arch bridge, rope suspension bridge and form of fracture, determine structural load weight)；(pier stud and type of foundation determine stress structure to substructure
Part)；Accessory structure (bearing and expansion joint type, determine constraints)；Three dimensional earthquake wavelength-division is selected by seismic wave component module
Amount, as reaction incoming wave, simultaneously by structure self-vibration personality modnies input structure mode and the natural frequency of vibration, bridge structure self-vibration is special
Property module include the natural frequency of vibration, the vibration shape and damping ratio, bridge structure self-vibration characteristic and structural-load-carrying capacity have internal relation；From
Between vibration frequency and spanning rigidity, structural deflection test coefficient, by the comparison of structural response Mode Shape amplitude, can be to knot
Structure lateral ties behaviour in service carries out non-destructive tests, by surveying the change of bridge structure damping ratio, and can be to structure boundary bar
Part, the change of structural material damping characteristic are analyzed judging.
Information above inputting analogue simulation unit and carries out structural anti-seismic capacity machine analogue simulation, analogue simulation unit can
Set up correlation model according to information such as the different types of bridge structures selected, three dimensional earthquake vibration table realizes structure mould
Intend, by applying Simulating Seismic Wave agenda process, it is achieved computer simulation experiment.
Vibration table array unit specifically includes information acquisition module, hydraulic machinery module and multiple three dimensional earthquake vibration table,
Information acquisition module includes strain transducer, displacement transducer and acceleration transducer, preferably three three dimensional earthquake vibration tablies, often
All it is connected with information acquisition module and hydraulic machinery module on individual three dimensional earthquake vibration table, is respectively used to information gathering and drivingly
Shake vibration table, information acquisition module and hydraulic machinery module are connected with control unit by signal processing unit respectively, will gather
Signal and drive signal to send after treatment to control unit or three dimensional earthquake vibration table, control unit realize three-dimensional
The vibrational feedback of earthquake vibration platform and signal acquisition process, control unit uses all-digitized demodulator with array unit, it is possible in real time
Carrying out data process, during effectively elimination simulation controls, electronic devices and components are by the defect faults such as temperature humidity is affected, full digital control
System can find failure problems the most faster, it is simple to quickly processes.
Particularly as follows: collect bridge by strain transducer, displacement transducer and acceleration transducer dynamic realtime respectively
The beam model displacement when shock test, speed, acceleration value, send to controlling list after signal processing unit processes
Unit, the calculating through control unit processes, and draws the antidetonation parameter of selected bridge structural model, by the ratio with setup parameter
Right, draw the concrete anti-seismic performance of bridge.
Control unit is also associated with the NE for data transmission, it is possible to final conclusion carries out network storage with remote
Distance cooperation is tested.
Claims (7)
1. an anti-seismic performance of beam bridge analogue experiment installation, it is characterised in that: include parameter selection unit, the emulation being sequentially connected with
Analogue unit, vibration table array unit, signal processing unit and control unit, described parameter selection unit includes for memory bridge
The architectural characteristic module of beam Each part type, for storing seismic wave component module and the self-vibration characteristic of seismic wave type
Module.
A kind of anti-seismic performance of beam bridge analogue experiment installation the most according to claim 1, it is characterised in that described architectural characteristic
Module includes top type memory module, bottom type memory module and attached type memory module.
A kind of anti-seismic performance of beam bridge analogue experiment installation the most according to claim 1, it is characterised in that described earthquake wavelength-division
Amount module includes compressional wave memory module, shear wave memory module dough-making powder ripple memory module.
A kind of anti-seismic performance of beam bridge analogue experiment installation the most according to claim 1, it is characterised in that described vibration table platform
Array element includes information acquisition module, hydraulic machinery module and multiple three dimensional earthquake vibration table, respectively by described signal processing
Unit is connected with control unit.
A kind of anti-seismic performance of beam bridge analogue experiment installation the most according to claim 4, it is characterised in that described information gathering
Module includes strain transducer, displacement transducer and acceleration transducer.
A kind of anti-seismic performance of beam bridge analogue experiment installation the most according to claim 4, it is characterised in that described three dimensional earthquake
Vibration table includes three three dimensional earthquake vibration tablies.
A kind of anti-seismic performance of beam bridge analogue experiment installation the most according to claim 1, it is characterised in that described control unit
It is also associated with the NE for data transmission.
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| CN201620616774.1U CN205785735U (en) | 2016-06-21 | 2016-06-21 | A kind of anti-seismic performance of beam bridge analogue experiment installation |
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| CN201620616774.1U CN205785735U (en) | 2016-06-21 | 2016-06-21 | A kind of anti-seismic performance of beam bridge analogue experiment installation |
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| CN205785735U true CN205785735U (en) | 2016-12-07 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238757A (en) * | 2018-10-17 | 2019-01-18 | 中南大学 | A kind of point dimension similar Design method of high-speed rail train traffic safety model test under earthquake |
| CN110108427A (en) * | 2019-05-06 | 2019-08-09 | 黄河科技学院 | A kind of bridge loading analog test device |
| CN111272370A (en) * | 2020-03-16 | 2020-06-12 | 华东交通大学 | Civil engineering structure anti-seismic test device |
| CN111366320A (en) * | 2020-03-20 | 2020-07-03 | 盐城摩因宝新材料有限公司 | Building pile foundation anti-seismic engineering detection system and detection method thereof |
| CN113310652A (en) * | 2021-06-25 | 2021-08-27 | 北京博科测试系统股份有限公司 | Electro-hydraulic servo-based large-rigidity test piece testing device for double-array system |
-
2016
- 2016-06-21 CN CN201620616774.1U patent/CN205785735U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238757A (en) * | 2018-10-17 | 2019-01-18 | 中南大学 | A kind of point dimension similar Design method of high-speed rail train traffic safety model test under earthquake |
| CN109238757B (en) * | 2018-10-17 | 2023-06-06 | 中南大学 | Fractal dimension similar design method for running safety model test of high-speed rail train in earthquake |
| CN110108427A (en) * | 2019-05-06 | 2019-08-09 | 黄河科技学院 | A kind of bridge loading analog test device |
| CN111272370A (en) * | 2020-03-16 | 2020-06-12 | 华东交通大学 | Civil engineering structure anti-seismic test device |
| CN111272370B (en) * | 2020-03-16 | 2021-09-21 | 华东交通大学 | Civil engineering structure anti-seismic test device |
| CN111366320A (en) * | 2020-03-20 | 2020-07-03 | 盐城摩因宝新材料有限公司 | Building pile foundation anti-seismic engineering detection system and detection method thereof |
| CN113310652A (en) * | 2021-06-25 | 2021-08-27 | 北京博科测试系统股份有限公司 | Electro-hydraulic servo-based large-rigidity test piece testing device for double-array system |
| CN113310652B (en) * | 2021-06-25 | 2021-12-21 | 北京博科测试系统股份有限公司 | Electro-hydraulic servo-based large-rigidity test piece testing device for double-array system |
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