CN103064104A - High-rise building earthquake monitoring and early warning system and method thereof - Google Patents
High-rise building earthquake monitoring and early warning system and method thereof Download PDFInfo
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Abstract
The invention discloses a high-rise building earthquake monitoring and early warning system and a method of the high-rise building earthquake monitoring and early warning system and relates to the technology of earthquake observation. The system is composed of a sensing and recording element group, an industrial control computer and an alarm box, wherein the sensing and recording element group, the industrial control computer and the alarm box are sequentially connected. System analysis and control software is embedded in the industrial control computer. The method includes the steps of (1) collecting and storing shock signals through a three-axial acceleration sensor and a data collection and recording element, (2) sending the collected data to the industrial control computer through a network, (3) analyzing the data through the computer, (4) sending out an alarm signal when influence on a high-rise building caused by an earthquake is analyzed to reach an alarm value, (5) estimating degree of damage to the high-rise building. The high-rise building earthquake monitoring and early warning system and the method of the high-rise building earthquake monitoring and early warning system is capable of not only collecting the shock signals, but also setting the alarm value according to an earthquake damage defense rule. The high-rise building earthquake monitoring and early warning system and the method of the high-rise building earthquake monitoring and early warning system not only gives an alarm for the earthquake, but also simultaneously gives a floor alarm for high-rise building shock caused by natural disasters such as gale.
Description
Technical field
The present invention relates to Observation Technology of Earthquakes, relate in particular to a kind of skyscraper seismic monitoring early warning system and method thereof.
Background technology
Urban construction is in the high speed development stage, and skyscraper is also more and more intensive.High-rise building design not only needs larger load-bearing capacity, and needs larger rigidity, and the lateral deformation that horizontal loading is produced is limited within certain scope.Excessive lateral deformation meeting makes infilled wall or construction and decoration crack or damage occur, also can make the elevator rail distortion.Under the natural force effects such as earthquake, strong wind, the damage of unstructuredness can make rehabilitation expense very high, and the life and the device security that collapse and also can threaten the people such as infilled wall.Excessive lateral deformation meeting makes agent structure the crack occur, even damages.Limit lateral is out of shape namely fracture width and the destructiveness of limiting structure.Excessive lateral deformation meeting makes the structure generation additional internal force, even causes and collapse.Therefore, also to be limited the lateral deformation that produces under earthquake, the wind effect.
Because the difference of epicentral distance and the difference of buildings rigidity make earthquake obviously different.The flexible building that is in violent earthquake, epicentral distance far away is more serious than the earthquake of medium and small earthquake magnitude, nearly epicentral distance.In view of the skyscraper characteristics, cause its flexibility relatively relatively poor, namely descending is appearred in the surge capability of vibrations, distant shock is far longer than near earthquake to the harm of skyscraper.The peak accelerator value of top layer is high than ground peak accelerator value, can reach more than three times of ground peak accelerator value, so that higher.Thereby the performance of building and possible infringement must be assessed at such design level.This effect is serious at the soft string of deposits ratio sill that bassets.Therefore distant shock, large shake never can be ignored the impact of skyscraper.
" Hubei Province's seismic monitoring management implementation way " the 6th clear, the skyscraper that highly surpasses 160 meters should arrange special-purpose strong motion monitoring facilities.
At present, earthquake monitoring system has been installed in national a plurality of buildings, but only does the data collection, does not participate in building body control.
Summary of the invention
Purpose of the present invention just is to overcome the shortcoming and defect that prior art exists, and a kind of skyscraper seismic monitoring and early warning system and method thereof are provided.
Skyscraper seismic monitoring and early warning system are not only monitored earthquake and are carried out data acquisition, simultaneously the vibrations response spectrum in building are analyzed, and are carried out earthquake assessment and earthquake pre-warning.
The monitoring of skyscraper macroseism is by monitoring and Real-time Collection to the macroseism signal, analyzes earthquake to the impact of structural safety, the rationality of checking seismic design and the reliability of existing high-rise construction earthquake resistance theory and scientific payoffs.
The object of the present invention is achieved like this:
One, skyscraper seismic monitoring and early warning system (abbreviation system)
Native system is comprised of the sensing and record tuple, industrial control computer and the warning box that connect successively, and systematic analysis is implanted in the industrial control computer with control software;
Sole plate at skyscraper is laid the 1st, 2,3 sensing and record cells, is mainly used in seismic monitoring;
On the middle layer of skyscraper and top layer, lay respectively the 4th, 5 sensings and record cell unit, be used for the vibration information of record skyscraper; Power supply and the signal of 5 sensings and record cell are connected on the industrial computer by preformed hole;
Sensing and record tuple are installed in the skyscraper, Real-Time Monitoring is carried out in vibrations to skyscraper, and be sent in real time the data that collect in the industrial control computer, by systematic analysis with control software to data analysis, when detecting the signal that meets alarm rule, then the trigger alarm case sends warning by warning box.
Two, skyscraper seismic monitoring method for early warning (abbreviation method)
This method comprises the following steps:
1. by three-axis acceleration sensor, data acquisition and record cell vibration signal is gathered and stores;
2. by network the data that gather are sent to industrial control computer;
3. by industrial control computer to data analysis;
4. analyze to find that earthquake exerts an influence when reaching warning value to high building, then sends alerting signal;
5. the destructiveness of high building is assessed.
The present invention has following advantages and good effect:
1, the present invention not only gathers vibration signal, and can set alarm threshold value according to earthquake defence regulation, when having realized earthquake on the basis of data accumulation floor response spectrum analysis to the warning function of the different floor heights of skyscraper;
2, the present invention not only reports to the police to earthquake, can also carry out floor to the building vibrations that the disasteies such as strong wind cause simultaneously and report to the police;
3, the present invention analyzes comparison with the response spectrum of measuring point and the floor design spectrum of skyscraper, after the disasteies such as earthquake, strong wind occur, can assess the infringement of skyscraper rapidly.
4, the present invention has great importance to the structural design of skyscraper and the reduction of the secondary disaster such as earthquake, strong wind.
Description of drawings
Fig. 1 is the scheme of installation of skyscraper seismic monitoring early warning system;
Fig. 2 is skyscraper seismic monitoring early warning system block diagram;
Among Fig. 1,2:
D-ground;
L-skyscraper;
F1-sole plate;
F2-middle layer;
The F3-top layer;
100-sensing and record tuple;
110-the 1st sensing and record cell;
The 111-1 three-axis acceleration sensor;
The 112-1 number gathers and record cell;
120-the 2nd sensing and record cell;
The 121-2 three-axis acceleration sensor;
The 122-2 number gathers and record cell;
130-the 3rd sensing and record cell;
131-No. 3 three-axis acceleration sensor;
132-3 number collection and record cells;
The 140-the 4 sensing and record cell;
141-No. 4 three-axis acceleration sensor;
142-4 number collection and record cells;
The 150-the 5 sensing and record cell;
151-No. 5 three-axis acceleration sensor;
152-5 number collection and record cells;
200-industrial control computer;
300-systematic analysis and control software;
400-warning box.
Fig. 3 is native system analysis and control software flow pattern.
Among Fig. 3:
1-vibration data g[i];
2-fifo queue; FIFO(First Input First Output wherein) be First Input First Output;
3-g[i] in arbitrary value;
4-tentatively judge whether to meet alarm rule;
5-whether meet the earthquake alarm rule;
6-whether meet the floor alarm rule;
The 7-earthquake alarm;
8-floor is reported to the police;
7-gets g[i] front 10 seconds to rear 10 seconds vibration data;
8-carries out the response spectrum analysis;
9-and floor design spectrum comparative assessment building damage situations;
The storage of 10-file;
The output of 11-data analysis report.
Embodiment
Describe in detail below in conjunction with drawings and Examples:
One, system architecture
1, overall
Such as Fig. 1,2, native system is comprised of the sensing and record tuple 100, industrial control computer 200 and the warning box 400 that connect successively, and systematic analysis is implanted in the industrial control computer 200 with control software 300;
Sole plate F1 at skyscraper L lays the 1st, 2,3 sensings and record cell 110,120,130, is mainly used in seismic monitoring;
On the middle layer of skyscraper L F2 and top layer F3, lay respectively the 4th, 5 sensings and record cell unit 140,150, be used for the vibration information (strong wind, earthquake) of record skyscraper; Power supply and the signal of 5 sensings and record cell are connected on the industrial computer 200 by preformed hole;
Sensing and record tuple 100 are installed in the skyscraper, Real-Time Monitoring is carried out in vibrations to skyscraper, and the data that collect are sent in the industrial control computer 200 in real time, by 300 pairs of data analysis of systematic analysis and control software, when detecting the signal that meets alarm rule, then the trigger alarm case 400, send warning by warning box 400.
2, functional block
1) sensing and record tuple 100
Sensing and record tuple 100 comprise the 1st sensing and record cell 110, the 2nd sensing and record cell 120, the 3rd sensing and record cell 130, the 4th sensing and record cell 140 and the 5th sensing and record cell 150, to vibrations Real-Time Monitoring and the data recording of skyscraper L.
(1) the 1st sensing and record cell 110
The 1st sensing and record cell 110 are comprised of front latter linked No. 1 three-axis acceleration sensor 111 and 1 number collection and record cell 112, and the 1st sensing and record cell 110 are installed on the sole plate F1, have realized the Real-Time Monitoring to earthquake.
A, No. 1 three-axis acceleration sensor 111
No. 1 three-axis acceleration sensor 111 is selected the AC-23 type accelerometer of Switzerland GeoSIG company or is reached the sensor of equivalent technology index, has realized the Real-Time Monitoring to vibration signal.
B, 1 number collection and record cell 112
1 number collection and record cell 112 are selected the GSR-18 type register of Switzerland GeoSIG company or are reached the register of equivalent technology index, 1 number collection is connected with No. 1 three-axis acceleration sensor 111 with record cell 112, and the signal that No. 1 three-axis acceleration sensor 111 is sent carries out record.
(2) the 2nd, 3 sensings and record cell 120,130
2nd, 3 sensings and record cell 120,130 its 26S Proteasome Structure and Functions are identical with the 1st sensing and record cell 110, are installed on the sole plate F1 of skyscraper L.
(3) the 4th, 5 sensings and record cell 140,150
4th, 5 sensings and record cell 140,150 its structures are identical with the 1st sensing and record cell 110, are installed in respectively on middle layer F2, the top layer F3 of skyscraper L, and its function is the vibration information of record skyscraper.
2) industrial control computer 200
3) systematic analysis and control software 300
Systematic analysis is the application software that are implanted in the industrial control computer 200 with control software 300, during to the disasteies such as analysis, earthquake or strong wind of real-time demonstration, the storage of shock event data and the analytical calculation of vibration data, floor response spectrum infringement assessment and the floor of skyscraper report to the police, the output of data analysis report.
4) warning box 400
3, principle of work
Each sensor passage of skyscraper seismic monitoring early warning system has independently, and the global function register carries out data recording and collection to it, reach regularly unified and triggering by mutual contact mode between each register, also interconnected by data communication mode and industrial control computer, be a kind of modular design.The major function that wherein is installed in the three-axis acceleration sensor of Tall Building Foundation base plate is the monitor earthquake signal, and the function that is installed in two acceleration transducers of the middle layer of skyscraper and top layer is the vibration signal of monitoring skyscraper.300 pairs of data analysis that transmit in real time of systematic analysis in being installed in industrial control computer 200 and control software detect, when the signal that detects above threshold value, then advance to judge according to rule, then send alerting signal by warning box 400 when needing to report to the police, and the damage of skyscraper is assessed.
Three, systematic analysis and control software flow
Systematic analysis and control software 300 are based on the application software of wxWidgets platform development, and therefore, this software has the advantage of wxWidgets platform, can cross-platformly move, and guarantees Systems balanth and expandability.When systematic analysis and control software 300 are mainly finished the disasteies such as analysis, earthquake or strong wind of real-time demonstration, floor response spectrum of vibration data of real-time demonstration, the storage of shock event data and analytical calculation, skyscraper measuring point of vibration data infringement assessment and the floor of skyscraper report to the police, the output of data analysis report.Fig. 3 is systematic analysis and the process flow diagram of controlling software.
Such as Fig. 3, for sake of convenience, g is accekeration, g[i] represent respectively the accekeration of each sensor, i=1,2,3,4,5.
The native system software flow is:
1. vibration data g[i] 1;
2. fifo queue 2: with g[i] arrange according to fifo queue;
For the whole shock event of complete documentation, system software adopts the mode of fifo queue stack data to be recorded temporary, set up the formation of 1 minute data sampling quantity in calculator memory, the data that register are sent to computing machine are arranged storage according to the order of sequence; Vibration data did not surpass setting threshold in one minute, software will abandon the old packet in a minute, fills with new data packets.
3. judge g[i] in arbitrary value whether 〉=threshold value 3, be then to enter next step, otherwise turn back to step 2.;
4. tentatively judge whether to meet alarm rule 4, be then to enter next step, otherwise turn back to step 2.;
5. judge whether to meet earthquake alarm rule 5, be then to enter step 7., otherwise enter step 6.;
6. judge whether to meet floor alarm rule 6, be then to enter step 8., otherwise turn back to step 2.;
7. carry out seismic events and report to the police 7;
8. floor reports to the police 8, then enters next step;
9. get g[i] front 10 seconds to rear 10 seconds vibration data 9;
10. be followed successively by:
Carry out response spectrum and analyze 10;
Compare with the floor design spectrum, the building damage situations is assessed 11;
File storage 12; System software stores the data of 10s before this moment point into buffer zone immediately, after data value falls back to below the setting threshold, system software will continue the storage shock event after the 10s data; Data analysis report output 13, flow process finishes.
Claims (4)
1. skyscraper seismic monitoring early warning system is characterized in that:
Be comprised of the sensing and record tuple (100), industrial control computer (200) and the warning box (400) that connect successively, systematic analysis is implanted in the industrial control computer (200) with control software (300);
Sole plate (F1) at skyscraper (L) is laid the 1st, 2,3 sensings and record cell (110,120,130), is mainly used in seismic monitoring;
On the middle layer of skyscraper (L) (F2) and top layer (F3), lay respectively the 4th, 5 sensings and record cell unit (140,150), be used for the vibration information of record skyscraper; Power supply and the signal of 5 sensings and record cell are connected on the industrial computer (200) by preformed hole;
Sensing and record tuple (100) are installed in the skyscraper, Real-Time Monitoring is carried out in vibrations to skyscraper, and the data that collect are sent to industrial control computer (in 200) in real time, by systematic analysis with control software (300) to data analysis, when detecting the signal that meets alarm rule, then trigger alarm case (400) sends warning by warning box (400).
2. by a kind of skyscraper seismic monitoring early warning system claimed in claim 1, it is characterized in that:
Described sensing and record tuple (100) comprise the 1st sensing and record cell (110), the 2nd sensing and record cell (120), the 3rd sensing and record cell (130), the 4th sensing and record cell (140) and the 5th sensing and record cell (150), to real-time vibration monitoring and the data recording of skyscraper L;
The 1st sensing and record cell (110) are comprised of front latter linked No. 1 three-axis acceleration sensor (111) and 1 number collection and record cell (112).
3. based on the monitoring and pre-alarming method of a kind of skyscraper seismic monitoring early warning system claimed in claim 1, it is characterized in that comprising the following steps:
1. by three-axis acceleration sensor, data acquisition and record cell vibration signal is gathered and stores;
2. by network the data that gather are sent to industrial control computer;
3. by industrial control computer to data analysis;
4. analyze to find that earthquake exerts an influence when reaching warning value to high building, then sends alerting signal;
5. the destructiveness of high building is assessed.
4. by monitoring and pre-alarming method claimed in claim 1, it is characterized in that step 3. by industrial control computer to data analysis:
1. vibration data g[i] (1);
2. fifo queue (2): with g[i] arrange according to fifo queue;
3. judge g[i] in arbitrary value whether 〉=threshold value (3), be then to enter next step, otherwise turn back to step 2.;
4. tentatively judge whether to meet alarm rule (4), be then to enter next step, otherwise turn back to step 2.;
5. judge whether to meet earthquake alarm rule (5), be then to enter step 7., otherwise enter step 6.;
6. judge whether to meet floor alarm rule (6), be then to enter step 8., otherwise turn back to step 2.;
7. carry out seismic events warning (7);
8. floor is reported to the police (8), then enters next step;
9. get g[i] front 10 seconds to rear 10 seconds vibration data (9);
10. be followed successively by:
Carry out response spectrum analysis (10);
Compare with the floor design spectrum, the building damage situations is assessed (11);
File storage (12); System software stores the data of 10s before this moment point into buffer zone immediately, after data value falls back to below the setting threshold, system software will continue the storage shock event after the 10s data;
Data analysis report output (13), flow process finishes.
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| CN105987660A (en) * | 2016-03-29 | 2016-10-05 | 中国地震局地震研究所 | Earth tide observation device based on electrostatic force balance feedback control |
| CN106324660A (en) * | 2016-09-29 | 2017-01-11 | 南京南瑞集团公司 | Device and method for dynamic dam safety monitoring under seismic condition |
| CN106453632A (en) * | 2016-11-23 | 2017-02-22 | 中国建筑股份有限公司 | Networked building structure anti-seismic system and method based on distributed perception |
| TWI676967B (en) * | 2018-06-19 | 2019-11-11 | 三聯科技股份有限公司 | Earthquake instant warning method |
| CN111985847A (en) * | 2020-09-02 | 2020-11-24 | 四川省地震局减灾救助研究所 | Earthquake disaster risk assessment and countermeasure analysis system |
| CN112085922A (en) * | 2020-09-01 | 2020-12-15 | 东莞理工学院 | Intelligent early warning and monitoring method for earthquake damage of building |
| CN113031055A (en) * | 2021-03-25 | 2021-06-25 | 浙江大学 | Space steel structure vibration response capturing and monitoring system based on earthquake early warning |
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Application publication date: 20130424 |