CN108267306A - Subway engineering antidetonation suspension and support anti-seismic performance exception localization method - Google Patents
Subway engineering antidetonation suspension and support anti-seismic performance exception localization method Download PDFInfo
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- CN108267306A CN108267306A CN201810035667.3A CN201810035667A CN108267306A CN 108267306 A CN108267306 A CN 108267306A CN 201810035667 A CN201810035667 A CN 201810035667A CN 108267306 A CN108267306 A CN 108267306A
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- support
- suspension
- seismic performance
- antidetonation
- antidetonation suspension
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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
- G01M13/00—Testing of machine parts
Abstract
The invention discloses a kind of subway engineering antidetonation suspension and support anti-seismic performance exception localization methods, include the following steps：S1, setting sensor；S2, antidetonation suspension and support vibratory response typical value caused by subway train is calculated；S3, the mean chart for establishing antidetonation suspension and support under serviceable condition；S4, the antidetonation suspension and support for positioning anti-seismic performance exception.The present invention can extremely position for the anti-seismic performance of high-volume antidetonation suspension and support and provide effective decision-making foundation, improve the precision of antidetonation monitoring, intelligence degree is high, securely and reliably.Test site does not need to personnel and garrisons, and is automatic monitoring.Multiple spot monitoring, can compare analysis determine entire subway line road antidetonation suspension and support anti-seismic performance have it is without exception.Multi-point is carried out to subway tunnel to monitor in real time, it can round-the-clock, the prolonged anti-seismic performance for monitoring antidetonation suspension and support.
Description
Technical field
The present invention relates to a kind of subway engineering antidetonation suspension and support anti-seismic performance exception localization methods, belong to infrastructure
The safe and healthy monitoring field of structure.
Background technology
As Urbanization in China is constantly accelerated, urban population is more and more, this brings huge to urban transportation
Pressure, subway is met the tendency of due to the advantage that its is quick, convenient, handling capacity of passengers is big to be widely applied.Current each big city is all energetically
Subway is built, is planned according to rail traffic Long-and Medium-term Development, during 2011-2015,2500 kilometers of rail traffic will be built
Circuit will build 3000 kilometers during 2016-2020, and to the year two thousand twenty end, national rail transportation operation mileage is up to 7000
Kilometer.
However the present situation of " rebuild and do not support again " is presented in domestic subway construction more at present, especially still belongs in China's subway construction
In the stage in development, this can bury security risk to the operation in the future of subway.As underground space development and underground structure construction are advised
The continuous expansion of mould, the Aseismic Design of underground structure and its importance of safety evaluatio, urgency are more and more apparent.
At present, the country is for the antidetonation support hanger structure wide variety set by subway system, and these suspension and supports are using
In or encounter collision or will appear the situations such as deformation, semi-mounted after living through macroseism, there are security risks.Subway engineering antidetonation branch
Frame is once by eaerthquake damage, it will brings extreme difficulties to repair after earthquake emergency and shake.On the one hand, to avoid pacifying
Full accident occurs, and often selection is all replaced or checks suspension and support one by one, and cumbersome, labor intensity is big, increases people
Work cost.On the other hand, the subway line environment that has been open to traffic is closed, and the anti-seismic performance of suspension and support is difficult to real-time quantization.
Therefore, the needs developed to adapt to rail traffic, it is necessary to propose a kind of earthquake prison of subway engineering para-seismic support
Survey method has great importance to the anti-seismic performance positioning extremely for realizing subway engineering antidetonation suspension and support.
Invention content
The purpose of the present invention is to overcome the above shortcomings and to provide a kind of subway engineering antidetonation suspension and support anti-seismic performance exceptions
Localization method can realize that the anti-seismic performance of high-volume antidetonation suspension and support positions extremely.
The present invention is achieved through the following technical solutions：
A kind of subway engineering antidetonation suspension and support anti-seismic performance exception localization method, which is characterized in that include the following steps：
S1, setting sensor；
S2, antidetonation suspension and support vibratory response typical value caused by subway train is calculated；
S3, the mean chart for establishing antidetonation suspension and support under serviceable condition；
S4, the antidetonation suspension and support for positioning anti-seismic performance exception.
Further, the S1 is specially：
For the diagonal brace of each antidetonation suspension and support in subway engineering, an acceleration transducer is installed, to monitor ground
Acceleration responsive caused by iron train, environmental load etc..
Further, the S2 is specially：
S21, with 10 minutes for computation interval, WAVELET PACKET DECOMPOSITION is carried out to the acceleration responsive of each sensor；
S22, the WAVELET PACKET DECOMPOSITION coefficient C using the last layer after WAVELET PACKET DECOMPOSITION0,NAcceleration responsive is reconstructed, to disappear
Except the interference of high-frequency noise, acceleration responsive caused by subway train is obtained, wherein N is WAVELET PACKET DECOMPOSITION scale, and N=is practical
Frequency/wavelet center frequency[1]；
S23 and then the root-mean-square value for calculating acceleration responsive are rung as antidetonation suspension and support vibration caused by subway train
The typical value answered[1]。
Further, the S3 is specially：
S31, choose antidetonation suspension and support installation is complete after the monitoring data of n days, then monitor sample total amount m=144 × n, n
For natural number；
S32, suspension and support on the basis of any antidetonation suspension and support is chosen, remaining antidetonation suspension and support is built respectively to examine suspension and support
Vertical each quadratic polynomial regression model f for examining suspension and support and the benchmark suspension and support acceleration responsive root-mean-square valuei(x),
Middle i=1,2 ..., X-1；X is the sum of antidetonation suspension and support[2][3]；
S33, suspension and support is examined for each, calculates the measured value and multinomial model of acceleration responsive root-mean-square value
The residual error of calculated value, and input-mean control figure adjust the significance of mean chart so that amount to m within above-mentioned n days
Sample point is fully fallen within the upper and lower control line of control figure, wherein the mean chart should be in each inspection suspension and support point
It does not establish[1]。
Further, the S4 is specially：
S41,1 day to unknown state, the acceleration responsive root-mean-square value of calculating benchmark suspension and support, 144 samples altogether
This；
S42, monitoring data are substituted into each quadratic polynomial regression model for examining suspension and support, and is examined for each
Suspension and support calculates the root mean square of actual measureed value of acceleration response and the residual error of multinomial model calculated value, while input-mean control figure；
If S43, all samples for examining suspension and support are still entirely located within upper and lower control line, illustrate all anti-
The anti-seismic performance for shaking suspension and support is normal；
If S44, some or a few are examined in the mean chart of suspension and support, part sample point is fallen in control
Other than line processed, then illustrate that these examine the anti-seismic performance of suspension and support abnormal；
If in S45, all mean charts for examining suspension and support, there is part sample point to fall other than control line, then
Illustrate that the anti-seismic performance of benchmark suspension and support is abnormal.
The present invention can extremely position for the anti-seismic performance of high-volume antidetonation suspension and support and provide effective decision-making foundation, carry
The precision of high anti-seismic monitoring, intelligence degree is high, securely and reliably.Test site does not need to personnel and garrisons, and is automatic monitoring.
Multiple spot monitoring, can compare analysis determine entire subway line road antidetonation suspension and support anti-seismic performance have it is without exception.To subway tunnel
Road carries out multi-point and monitors in real time, can round-the-clock, the prolonged anti-seismic performance for monitoring antidetonation suspension and support.It can solve subway
Light is faint in engineering, airborne dust is thick and heavy, the unsuitable personal monitoring's subway antidetonation branch of danger, the manual work limited time etc. of being open to traffic
The problem of hanger.
Description of the drawings
Fig. 1 is the flow chart of the subway engineering antidetonation suspension and support anti-seismic performance exception localization method of the present invention.
Fig. 2 is a kind of subway engineering antidetonation suspension and support anti-seismic performance exception localization method that the embodiment of the present invention 2 provides
Apparatus structure schematic diagram.
Specific embodiment
Embodiment 1
As shown in Figure 1, it is positioned extremely the embodiment provides a kind of subway engineering antidetonation suspension and support anti-seismic performance
Method includes the following steps.
S1, setting sensor：
For the diagonal brace of each antidetonation suspension and support in subway engineering, an acceleration transducer is installed on each diagonal brace,
Acceleration responsive caused by monitor subway train, environmental load etc..
S2, antidetonation suspension and support vibratory response typical value caused by subway train is calculated：
With 10 minutes for computation interval, WAVELET PACKET DECOMPOSITION is carried out to the acceleration responsive of each sensor；Using small echo
The WAVELET PACKET DECOMPOSITION coefficient C of the last layer after packet decomposes0,N(N is WAVELET PACKET DECOMPOSITION scale, and N=actual frequencies/wavelet center is frequently
Rate) reconstruct acceleration responsive, to eliminate the interference of high-frequency noise, obtain acceleration responsive caused by subway train；And then it counts
Calculate the root-mean-square value of acceleration responsive, the typical value as antidetonation suspension and support vibratory response caused by subway train.
S3, the mean chart for establishing antidetonation suspension and support under serviceable condition：
The monitoring data of n days after choosing antidetonation suspension and support installation is complete, then monitor sample total amount m=144 × n, n are oneself
So number；Suspension and support on the basis of a certain antidetonation suspension and support is chosen, remaining antidetonation suspension and support is established examine respectively to examine suspension and support
The quadratic polynomial regression model f of suspension and support and the benchmark suspension and support acceleration responsive root-mean-square valuei(x) (i=1,2 ..., X-
1；X is the sum of antidetonation suspension and support)；For each inspection suspension and support, calculate acceleration responsive root-mean-square value measured value and
The residual error of multinomial model calculated value, and input-mean control figure adjust the significance of mean chart so that above-mentioned n
It amounts to m sample point and fully falls within the upper and lower control line of control figure, wherein each suspension and support is examined to establish respectively
It is worth control figure.
S4, the antidetonation suspension and support for positioning anti-seismic performance exception：
To 1 day of unknown state, the acceleration responsive root-mean-square value of calculating benchmark suspension and support, 144 samples altogether；It will
Monitoring data substitute into each quadratic polynomial regression model for examining suspension and support, and suspension and support are examined to calculate actual measurement for each
The root mean square of acceleration responsive and the residual error of multinomial model calculated value, while input-mean control figure；
Its basis for estimation is：
If all samples for examining suspension and support are still entirely located within upper and lower control line, illustrate all antidetonation branch
The anti-seismic performance of hanger is normal；If in the mean chart of some or a few inspection suspension and support, part sample point is fallen
Other than control line, then illustrate that these examine the anti-seismic performance of suspension and support abnormal；If all mean controls for examining suspension and support
In figure, there is part sample point to fall other than control line, then illustrate that the anti-seismic performance of benchmark suspension and support is abnormal.
Embodiment 2
As shown in Fig. 2, the present invention provides available for subway engineering antidetonation suspension and support anti-seismic performance exception localization method
Device consists of the following parts：Structure 1, C-shaped channel steel 21, antidetonation diagonal brace 31, acceleration transducer 4.
Wherein, it is connected between C-shaped channel steel 21, between structure 1 and C-shaped channel steel 21 with long bolt 22；Structure 1 is with resisting
It is connected between shake diagonal brace 31 with antidetonation connecting elements 32, with the quick connecting elements of antidetonation between C-shaped channel steel 21 and antidetonation diagonal brace 31
33 connections, acceleration transducer 4 are mounted on antidetonation diagonal brace 31.
The subway engineering antidetonation suspension and support that the present invention is monitored is not limited to structure shown in Fig. 2, or in subway engineering
Other various support hanger structures that progress anti-seismic performance is needed to position extremely.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those of ordinary skill in the art that：It still can be to aforementioned each implementation
Technical solution recorded in example modifies or carries out equivalent replacement to which part technical characteristic；And these modification or
It replaces, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Bibliography：
1st, bullet train safety characteristics assessment data characteristics analysis [D] the southwest traffic of the gorgeous backbones wavelet analysis of Liu Lin
University's master thesis, 2013.
2nd, Wei keeps particle damped vibration attenuation structural damping property research [D] Jiangsu sections of the shellfish based on support vector regression
Skill university Master academic dissertation, 2016.
3rd, Jiang Chongwen, Yi Weijian, the correlation that Pang is damaged in great waves ground motion intensity indices with large span rigid frame bridge
[J] Chinese Highway journals, 2016,29 (9)：97-102.
Claims (5)
1. a kind of subway engineering antidetonation suspension and support anti-seismic performance exception localization method, which is characterized in that include the following steps：
S1, setting sensor；
S2, antidetonation suspension and support vibratory response typical value caused by subway train is calculated；
S3, the mean chart for establishing antidetonation suspension and support under serviceable condition；
S4, the antidetonation suspension and support for positioning anti-seismic performance exception.
2. subway engineering antidetonation suspension and support anti-seismic performance exception localization method according to claim 1, which is characterized in that institute
Stating S1 is specially：
For the diagonal brace of antidetonation suspension and support in subway engineering, an acceleration transducer is installed, to monitor ground on each diagonal brace
Acceleration responsive caused by iron train and environmental load.
3. subway engineering antidetonation suspension and support anti-seismic performance exception localization method according to claim 1, which is characterized in that institute
Stating S2 is specially：
S21, with 10 minutes for computation interval, WAVELET PACKET DECOMPOSITION is carried out to the acceleration responsive of each sensor；
S22, the WAVELET PACKET DECOMPOSITION coefficient C using the last layer after WAVELET PACKET DECOMPOSITION0,NAcceleration responsive is reconstructed, to eliminate height
The interference of frequency noise, obtains acceleration responsive caused by subway train, and wherein N is WAVELET PACKET DECOMPOSITION scale, and N=actual frequencies/
Wavelet center frequency；
S23 and then the root-mean-square value for calculating acceleration responsive, the generation as antidetonation suspension and support vibratory response caused by subway train
Tabular value.
4. subway engineering antidetonation suspension and support anti-seismic performance exception localization method according to claim 1, which is characterized in that institute
Stating S3 is specially：
S31, choose antidetonation suspension and support installation is complete after the monitoring data of n days, then monitor sample total amount m=144 × n, n are nature
Number；
S32, suspension and support on the basis of any antidetonation suspension and support is chosen, remaining antidetonation suspension and support is established every respectively to examine suspension and support
A quadratic polynomial regression model f for examining suspension and support and the benchmark suspension and support acceleration responsive root-mean-square valuei(x), wherein i=
1,2 ..., X-1；X is the sum of antidetonation suspension and support；
S33, for it is all each examine suspension and supports, calculate the measured value of acceleration responsive root-mean-square value and multinomial model meter
The residual error of calculation value, and input-mean control figure adjust the significance of mean chart so that amount to m sample within above-mentioned n days
Point is fully fallen within the upper and lower control line of control figure, wherein the mean chart should respectively be built in each inspection suspension and support
It is vertical.
5. subway engineering antidetonation suspension and support anti-seismic performance exception localization method according to claim 1, which is characterized in that institute
Stating S4 is specially：
S41, certain 1 day to be tested to unknown state, the acceleration responsive root-mean-square value of calculating benchmark suspension and support, 144 altogether
Sample；
S42, monitoring data are substituted into each quadratic polynomial regression model for examining suspension and support, and suspension and support is examined for each
Calculate the root mean square of actual measureed value of acceleration response and the residual error of multinomial model calculated value, while input-mean control figure；
If S43, all samples for examining suspension and support are still entirely located within upper and lower control line, illustrate all antidetonation branch
The anti-seismic performance of hanger is normal；
If S44, some or a few are examined in the mean chart of suspension and support, part sample point fall control line with
Outside, then illustrate that these examine the anti-seismic performance of suspension and support abnormal；
If in S45, all mean charts for examining suspension and support, there is part sample point to fall other than control line, then illustrate
The anti-seismic performance of benchmark suspension and support is abnormal.
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| CN110160724A (en) * | 2019-06-11 | 2019-08-23 | 南京睿永智运维工程科技有限公司 | A kind of building aseismicity suspension and support performance state monitoring method |
| CN111022119A (en) * | 2019-11-18 | 2020-04-17 | 东莞理工学院 | Shield tunnel structure anti-seismic safety evaluation method based on pattern recognition |
| CN112378441A (en) * | 2020-10-12 | 2021-02-19 | 浙江航鑫支吊架有限公司 | Intelligent anti-seismic support and hanger system based on Internet of things |
| CN114997759A (en) * | 2022-08-05 | 2022-09-02 | 江苏富泊新材料有限公司 | Heat supply pipeline support and hanger stability early warning method and system |
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