CN107179172A - Bridge pier based on jump bit washes away condition monitoring system and method - Google Patents
Bridge pier based on jump bit washes away condition monitoring system and method Download PDFInfo
- Publication number
- CN107179172A CN107179172A CN201710429126.4A CN201710429126A CN107179172A CN 107179172 A CN107179172 A CN 107179172A CN 201710429126 A CN201710429126 A CN 201710429126A CN 107179172 A CN107179172 A CN 107179172A
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- jump bit
- bridge pier
- bridge
- vibration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
Abstract
Condition monitoring system and method are washed away the invention discloses a kind of bridge pier based on jump bit, including jump bit, acceleration transducer, collector, data transmission device and data processing equipment, jump bit is fixed on the bent cap side wall of bridge, collector is fixed at the top of the bent cap of bridge, acceleration transducer is connected with collector, collector is connected by data transmission device with data processing equipment, and data processing equipment is also connected by data transmission device with jump bit.The present invention changes with river to bridge pier degradation degree, the bridge pier vibration data that acceleration transducer is obtained, it can interpolate that whether bridge pier vibration frequency changes, so as to accurately delicately monitor the situation of washing away, it is simple in construction, with low cost, easy to use thus more suitable for Practical Project so as to find bridge scouring disease in time, monitoring sensitivity is high, result is accurate, has a good application prospect and the value in industry.
Description
Technical field
The present invention relates to engineering equipment technical field, and in particular to a kind of bridge pier based on jump bit washes away situation prison
Examining system and method.
Background technology
Under long-time operation service state, it is a kind of sick of generally existing that the pier footing in river Bridge, which washes away,
Evil, is also the main cause for causing bridge unstability to collapse.
In recent years, due to the development of health monitoring technique, using sensor continuous monitoring bridge state, the clothes of bridge are obtained
Labour situation, and be transferred to data center, contributes to administrative staff to understand bridge situation in time, and makes the management and maintenance of reply to arrange
Apply.However, the existing health monitoring index for bridge pier, usually contains temperature, wind, displacement structure, strain or cracking
Deng, do not set up always for the monitoring index of river Bridge pier subsidence, often rely on the mode of diver's monitoring, it is time-consuming to take
Power.Meanwhile, imperceptible vibration occurs in the presence of current for the bridge in river, and this vibration is difficult at typical condition
To monitor, as the pier footing of bridge washes away exacerbation, extent of vibration can gradually increase, even if however, extent of vibration increase,
This vibration is still difficult to monitor, and can cause the generation for being once monitored to vibration, it is very tight that pier footing has been washed
, there is potential safety hazard in weight.
The content of the invention
The purpose of the present invention is to overcome the existing monitoring index for river Bridge pier subsidence not set up always, and
Imperceptible vibration occurs in the presence of current for the bridge in river, it is difficult to the problem of detecting.This base of the invention
Condition monitoring system and method are washed away in the bridge pier of jump bit, as river changes to bridge pier degradation degree, is accelerated
The bridge pier vibration data that sensor is obtained is spent, can interpolate that whether bridge pier vibration frequency changes, so as to accurately delicately supervise
The situation of washing away is measured, so as to find bridge scouring disease in time, thus more suitable for Practical Project, simple in construction, cost is low
Honest and clean, easy to use, monitoring sensitivity is high, result is accurate, has a good application prospect and the value in industry.
In order to achieve the above object, the technical solution adopted in the present invention is：
Bridge pier based on jump bit washes away condition monitoring system, it is characterised in that：Including jump bit, acceleration transducer,
Collector, data transmission device and data processing equipment,
The jump bit, for the sidewall impact of the bent cap to bridge, causes bridge pier to vibrate；
The acceleration transducer, during for detecting jump bit to the sidewall impact of the bent cap of bridge, what bridge pier vibration was produced shakes
Dynamic data；
The collector, the vibration data that the bridge pier vibration for gathering acceleration transducer acquisition is produced；
The data transmission device, for receiving the vibration data that collector is collected, and transmits data processing equipment；Receive number
According to the jump bit Trig control signal of processing unit, and jump bit is sent to, triggering jump bit is rushed to the side wall of the bent cap of bridge
Hit；
The data processing equipment, for reception processing vibration data, judges that bridge pier washes away situation, and it is tactile to produce jump bit
Send out control signal；
The jump bit is fixed on the bent cap side wall of bridge, and the collector is fixed at the top of the bent cap of bridge, described to accelerate
Degree sensor is connected with collector, and the collector is connected by data transmission device with data processing equipment, the number
Also it is connected according to processing unit by data transmission device with jump bit.
The foregoing bridge pier based on jump bit washes away condition monitoring system, it is characterised in that：The data transfer dress
Wireless data transmission device is set to, the data transmission device is with data processing equipment by wirelessly entering row data communication.
The foregoing bridge pier based on jump bit washes away condition monitoring system, it is characterised in that：The jump bit, in number
According under the control of processing unit, periodically to the sidewall impact of the bent cap of bridge, bridge pier is caused to vibrate.
The foregoing bridge pier based on jump bit washes away condition monitoring system, it is characterised in that：The jump bit, in number
According under the control of processing unit, when daily 6 and when 20, twice to the sidewall impact of the bent cap of bridge, bridge pier is caused to vibrate.
Bridge pier based on jump bit washes away condition monitoring method, it is characterised in that：Comprise the following steps,
Step（A）, jump bit is fixed on the bent cap side wall of bridge, collector is fixed at the top of the bent cap of bridge, and will add
Velocity sensor is connected with collector, and collector is connected with data transmission device；
Step（B）, set up the radio communication of data transmission device, data processing equipment；
Step（C）, data processing equipment regularly produces jump bit Trig control signal, and will be impacted by data transmission device
Hammer Trig control signal into shape, be sent to jump bit；
Step（D）, jump bit received after jump bit Trig control signal, to the sidewall impact of the bent cap of bridge, causes bridge pier
Vibration；
Step（E）, after bridge pier vibrates, the vibration data that acceleration transducer detection bridge pier vibration is produced, collector collection adds
The vibration data that the bridge pier vibration that velocity sensor is obtained is produced；
Step（F）, collector by the bridge pier collected vibrate produce vibration data, be transferred to data transmission device；
Step（G）, data transmission device is by vibration data by radioing to data processing equipment；
Step（H）, data processing equipment（5）Fast Fourier Transform (FFT) processing is carried out by the vibration data received, bridge is obtained
The vibration frequency value of pier, and be compared with bridge pier vibration frequency threshold value, if there is significant change, and judge there is pier subsidence
Disease.
The foregoing bridge pier based on jump bit washes away condition monitoring method, it is characterised in that：Data processing equipment（5）
Jump bit Trig control signal is regularly produced, is at daily 6 and when 20, twice to producing jump bit Trig control signal.
The foregoing bridge pier based on jump bit washes away condition monitoring method, it is characterised in that：Step（H）, the bridge
Pier vibration frequency threshold value is the average value for the vibration frequency value for the previous day calculating obtained bridge pier.
The foregoing bridge pier based on jump bit washes away condition monitoring method, it is characterised in that：Step（H）, hence it is evident that become
Turn to bridge pier vibration frequency value compared with bridge pier vibration frequency threshold value after, fluctuation reach 10% and more than.
The beneficial effects of the invention are as follows：The bridge pier based on jump bit of the present invention washes away condition monitoring system and side
Method, as river changes to bridge pier degradation degree, the bridge pier vibration data that acceleration transducer is obtained can interpolate that bridge pier
Whether vibration frequency changes, so as to accurately delicately monitor the situation of washing away, so as to find bridge scouring disease in time,
Simple in construction, with low cost, easy to use thus more suitable for Practical Project, monitoring sensitivity is high, result is accurate, with good
Value in good application prospect and industry.
Brief description of the drawings
Fig. 1 is that the bridge pier based on jump bit of the present invention washes away the schematic view of the mounting position of condition monitoring system；
Fig. 2 is that the bridge pier based on jump bit of the present invention washes away the system block diagram of condition monitoring system.
The implication marked in accompanying drawing is as follows：
1：Jump bit；2：Acceleration transducer；3：Collector；4：Data transmission device；5：Data processing equipment；6：Bent cap.
Embodiment
Below in conjunction with Figure of description, the present invention is further illustrated.
As shown in Figures 1 and 2, the bridge pier of the invention based on jump bit washes away condition monitoring system, including impact
Hammer 1, acceleration transducer 2, collector 3, data transmission device 4 and data processing equipment 5,
The jump bit 1, for the sidewall impact of the bent cap 6 to bridge, causes bridge pier to vibrate；
The acceleration transducer 2, during for detecting jump bit 1 to the sidewall impact of the bent cap 6 of bridge, bridge pier vibration is produced
Vibration data；
The collector 3, the vibration data that the bridge pier vibration for gathering the acquisition of acceleration transducer 2 is produced；
The data transmission device 4, for receiving the vibration data that collector 3 is collected, and transmits data processing equipment 5；Connect
The jump bit Trig control signal of data processing equipment 5 is received, and is sent to jump bit 1, bent cap 6 of the triggering jump bit 1 to bridge
Sidewall impact；
The data processing equipment 5, for reception processing vibration data, judges that bridge pier washes away situation, and produce jump bit
Trig control signal；
The jump bit 1 is fixed on the side wall of bent cap 6 of bridge, and the collector 3 is fixed on the top of bent cap 6 of bridge, described
Acceleration transducer 2 is connected with collector 3, and the collector 3 is connected by data transmission device 4 with data processing equipment 5
Connect, the data processing equipment 5 is also connected by data transmission device 4 with jump bit 1.
The data transmission device 4 is wireless data transmission device, the data transmission device 4 and data processing equipment 5
By wirelessly entering row data communication, radio communication, wireless wiring is easy to use, is easy to long-range bridge pier to wash away situation prison
Survey.
The jump bit 1, under the control of data processing equipment 5, periodically to the sidewall impact of the bent cap 6 of bridge, causes
Bridge pier vibrates, preferably daily 6 when and when 20, twice to the sidewall impact of the bent cap 6 of bridge, cause bridge pier to vibrate.
Condition monitoring is washed away according to the bridge pier that the above-mentioned bridge pier based on jump bit washes away condition monitoring system
Method, comprises the following steps,
Step（A）, jump bit 1 is fixed on the side wall of bent cap 6 of bridge, collector 3 is fixed on the top of bent cap 6 of bridge, and
Acceleration transducer 2 is connected with collector 3, collector 3 is connected with data transmission device 4；
Step（B）, set up data transmission device 4, the radio communication of data processing equipment 5；
Step（C）, data processing equipment 5 regularly produces jump bit Trig control signal, and will be rushed by data transmission device 4
Hammer Trig control signal, is sent to jump bit 1, preferably at daily 6 and when 20, is controlled twice to producing jump bit triggering
Signal processed；
Step（D）, jump bit 1 received after jump bit Trig control signal, to the sidewall impact of the bent cap 6 of bridge, causes bridge
Pier vibrates；
Step（E）, after bridge pier vibration, the vibration data that the monitoring bridge pier vibration of acceleration transducer 2 is produced, collector 3 is gathered
The vibration data that the bridge pier vibration that acceleration transducer 2 is obtained is produced；
Step（F）, collector 3 by the bridge pier collected vibrate produce vibration data, be transferred to data transmission device 4；
Step（G）, data transmission device 4 is by vibration data by radioing to data processing equipment 5；
Step（H）, data processing equipment（5）Fast Fourier Transform (FFT) processing is carried out by the vibration data received, bridge is obtained
The vibration frequency value of pier, and be compared with bridge pier vibration frequency threshold value, if there is the vibration frequency value that significant change is bridge pier
After being compared with bridge pier vibration frequency threshold value, fluctuation reach 10% and more than, and judge there is pier subsidence disease, the bridge pier shakes
Dynamic frequency threshold value is the average value for the vibration frequency value for the previous day calculating obtained bridge pier.
In summary, the bridge pier of the invention based on jump bit washes away condition monitoring system and method, with river
Bridge pier degradation degree is changed, the bridge pier vibration data that acceleration transducer is obtained can interpolate that bridge pier vibration frequency is
No change, so as to accurately delicately monitor the situation of washing away, so as to find bridge scouring disease in time, so as to more fit
Simple in construction, with low cost, easy to use in Practical Project, monitoring sensitivity is high, result is accurate, before good application
Value on scape and industry.
General principle, principal character and the advantage of the present invention has been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, the original for simply illustrating the present invention described in above-described embodiment and specification
Reason, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (8)
1. the bridge pier based on jump bit washes away condition monitoring system, it is characterised in that：Including jump bit（1）, acceleration pass
Sensor（2）, collector（3）, data transmission device（4）And data processing equipment（5）,
The jump bit（1）, for the bent cap to bridge（6）Sidewall impact, cause bridge pier to vibrate；
The acceleration transducer（2）, for detecting jump bit（1）To the bent cap of bridge（6）Sidewall impact when, bridge pier vibration
The vibration frequency of generation；
The collector（3）, for gathering acceleration transducer（2）The vibration data that the bridge pier vibration of acquisition is produced；
The data transmission device（4）, for receiving collector（3）The vibration data collected, and transmit data processing equipment
（5）；Receive data processing equipment（5）Jump bit Trig control signal, and be sent to jump bit（1）, trigger jump bit（1）It is right
The bent cap of bridge（6）Sidewall impact；
The data processing equipment（5）, for receiving and handling vibration data, bridge pier frequency information is obtained, bridge pier is judged
Situation is washed away, and produces jump bit Trig control signal；
The jump bit（1）It is fixed on the bent cap of bridge（6）On the wall of side, the collector（3）It is fixed on the bent cap of bridge（6）Top
Portion, the acceleration transducer（2）With collector（3）It is connected, the collector（3）Pass through data transmission device（4）With number
According to processing unit（5）It is connected, the data processing equipment（5）Also pass through data transmission device（4）With jump bit（1）It is connected
Connect.
2. the bridge pier according to claim 1 based on jump bit washes away condition monitoring system, it is characterised in that：It is described
Data transmission device（4）For wireless data transmission device, the data transmission device（4）With data processing equipment（5）Pass through nothing
Line enters row data communication.
3. the bridge pier according to claim 1 based on jump bit washes away condition monitoring system, it is characterised in that：It is described
Jump bit（1）, in data processing equipment（5）Control under, periodically to the bent cap of bridge（6）Sidewall impact, cause bridge pier to shake
It is dynamic.
4. the bridge pier according to claim 1 based on jump bit washes away condition monitoring system, it is characterised in that：It is described
Jump bit（1）, in data processing equipment（5）Control under, when daily 6 and when 20, twice to the bent cap of bridge（6）The punching of side wall
Hit, cause bridge pier to vibrate.
5. the bridge pier based on jump bit washes away condition monitoring method, it is characterised in that：Comprise the following steps,
Step（A）, by jump bit（1）It is fixed on the bent cap of bridge（6）On the wall of side, collector（3）It is fixed on the bent cap of bridge（6）
Top, and by acceleration transducer（2）With collector（3）It is connected, collector（3）With data transmission device（4）It is connected；
Step（B）, set up data transmission device（4）, data processing equipment（5）Radio communication；
Step（C）, data processing equipment（5）Jump bit Trig control signal is regularly produced, and passes through data transmission device（4）
By jump bit Trig control signal, jump bit is sent to（1）；
Step（D）, jump bit（1）Receive after jump bit Trig control signal, to the bent cap of bridge（6）Sidewall impact, draw
Play bridge pier vibration；
Step（E）, after bridge pier vibration, acceleration transducer（2）Monitor the vibration data that bridge pier vibration is produced, collector
（3）Gather acceleration transducer（2）The vibration data that the bridge pier vibration of acquisition is produced；
Step（F）, collector（3）The bridge pier collected is vibrated to the vibration data produced, data transmission device is transferred to（4）；
Step（G）, data transmission device（4）By vibration data by radioing to data processing equipment（5）；
Step（H）, data processing equipment（5）Fast Fourier Transform (FFT) processing is carried out by the vibration data received, bridge is obtained
The vibration frequency value of pier, and be compared with bridge pier vibration frequency threshold value, if there is significant change, and judge there is pier subsidence
Disease.
6. the bridge pier according to claim 5 based on jump bit washes away condition monitoring method, it is characterised in that：Data
Processing unit（5）Jump bit Trig control signal is regularly produced, is at daily 6 and when 20, is touched twice to producing jump bit
Send out control signal.
7. the bridge pier according to claim 5 based on jump bit washes away condition monitoring method, it is characterised in that：Step
（H）, the bridge pier vibration frequency threshold value is the average value for the vibration frequency value for the previous day calculating obtained bridge pier.
8. the bridge pier according to claim 5 based on jump bit washes away condition monitoring method, it is characterised in that：Step
（H）, hence it is evident that become turn to bridge pier vibration frequency value compared with bridge pier vibration frequency threshold value after, fluctuate reach 10% and more than.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710429126.4A CN107179172A (en) | 2017-06-08 | 2017-06-08 | Bridge pier based on jump bit washes away condition monitoring system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710429126.4A CN107179172A (en) | 2017-06-08 | 2017-06-08 | Bridge pier based on jump bit washes away condition monitoring system and method |
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| Publication Number | Publication Date |
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| CN107179172A true CN107179172A (en) | 2017-09-19 |
Family
ID=59836416
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|---|---|---|---|
| CN201710429126.4A Pending CN107179172A (en) | 2017-06-08 | 2017-06-08 | Bridge pier based on jump bit washes away condition monitoring system and method |
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Cited By (3)
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| CN109084949A (en) * | 2018-08-06 | 2018-12-25 | 大连理工大学 | A kind of impact for bridge machinery is dropped hammer automatic rebound climbing device |
| CN109253794A (en) * | 2018-10-15 | 2019-01-22 | 建研地基基础工程有限责任公司 | A kind of synthesis bridge monitoring system and bridge structure based on mems sensor |
| CN109811805A (en) * | 2018-12-15 | 2019-05-28 | 浙江工业大学 | A kind of ring type bridge pile foundation flushing monitoring system and its monitoring method |
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Application publication date: 20170919 |
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