![16ni.com
MAIN SHOCK: 25 JANUARY 2012
Prealpi Venete (VR) 2012-01-24 23:54:46
Magnitude: 4.2
Depth 10.3 Km
Distance: 11,5 Km
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50
tempo [s]
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
0.6
[m/s^2]
acc7
acc8
acc9
Seismic
event
BASE TOP WING TOP AMPHITHEATER
PGA
[m/s2]
Max. Acc.
[m/s2]
Amplif.
factor
Max Acc.
[m/s2]
Amplif.
factor
25/01/201
2
0,619 1,93 3,11 1,251 2,02
29/05/201
2
0,078 0,98 12,56 0,40 5,13
Max. Acc. Base = 0,62 m/s2
Max Acc. Wing = 1,93 m/s2
MAIN SHOCK: 29 MAY 2012
Pianura Padana-Emiliana (MO) 2012-05-29 07:00:03
Magnitude: 5.8
Depth 10.2 Km
Distance: 75 Km
Max. Acc. Base = 0,08 m/s2
Max Acc. Wing = 0,98 m/s2
COMPARISON: MAX. ACCELRATIONS, AMPLIFICATION FACTORS AND ELASTIC RESPONSE SPECTRA
Amplif. factor = 3,11
Amplif. factor = 12,56
SEISMIC MONITORING : EARTHQUAKE EVENTS](https://image.slidesharecdn.com/niweek2016bacchiegav4-161011095941/85/Structural-Health-Monitoring-platform-presentation-at-NI-week-2016-16-320.jpg)
![17ni.com
.
MODE
n°
EXP
FREQ
[Hz]
FEM
FREQ
[Hz]
1 1,92 1,68
2 2,61 2,42
3 4,83 4,91
4 5,87 5,89
5 6,10 6,20
6 7,10 7,18
A TOOL TO HELP CONSERVATION : MODELING AND NUMERICAL SIMULATION](https://image.slidesharecdn.com/niweek2016bacchiegav4-161011095941/85/Structural-Health-Monitoring-platform-presentation-at-NI-week-2016-17-320.jpg)
Structural Health Monitoring platform presentation at NI week 2016
- 1. ni.com Using Structural Health Monitoring to Reduce Risks for Historical Buildings Gianluca Bacchiega - IRS srl R&D bacchiega@irsweb.it
- 3. 3ni.com Qtub Minar New Delhi (India) Chiesa San Marco L’Aquila (Italy) Ponte del mare Pescara (Italy)
- 4. 4ni.com
- 5. 5ni.com PROBLEM STATEMENT Structural design or assessment, Damage detection and assessment, Maintenance and retrofitting of existing structures, structural control during earthquakes (using semi-active systems). Historic buildings, due to their structural features, construction techniques and used materials, are particularly vulnerable to earthquake actions; STRUCTURAL HEALTH MONITORING (SHM) Continuous or short/medium-term controls of quantities related to the structural behavior connected to the evaluation of their evolution with the passing of time;
- 6. 6ni.com On-site testing and monitoring can be considered key activities for a conscious knowledge- based approach in the conservation of the architectural heritage. INVESTIGATIONS Structural behaviour definition (ex: validation of behavioural models) MONITORING Permanent structural controls (continuous on site inspections) STATIC MONITORING DYNAMIC MONITORING MONITORING TECHNIQUES APPLICATION TO CULTURAL HERITAGE STRUCTURES
- 7. 7ni.com Automated system for structural and environmental parameters monitoring and analysis 1. Wired and wireless National Instruments based measurement Hardware IRS Platform for SHM
- 8. 8ni.com 1. Wired and wireless National Instruments based measurement Hardware 2. Custom or Third party components integration (routers, enclosures, industrial PC, sensors) IRS Platform for SHM Automated system for structural and environmental parameters monitoring and analysis
- 9. 9ni.com 3. LabVIEW software application developed by IRS for channels configuration, data acquisition and visualization, calculations, log and UMTS/3G data transfer IRS Platform for SHM 1. Wired and wireless National Instruments based measurement Hardware 2. Third party component integration (routers, enclosures, industrial PC, sensors) Automated system for structural and environmental parameters monitoring and analysis
- 10. 10ni.com https://youtu.be/lBXP_9bu9yk Structural monitoring solutions for ancient and new structures.
- 11. 11ni.com Roman amphitheater: Arena di Verona GEOMETRIC AND STRUCTURAL FEATURES Ellipse with four focuses (152.43m x 123.23m) Two annular galleries and 73 radial masonry walls Inner masonry: multi-leaf with inner core ‘Wing - Ala’: freestanding structure remaining four arches of the outer ring, h=30.75 m HISTORICAL NOTES - PAST INTERVENTIONS I century: construction of the amphitheater XII century: collapse of the outer ring 1939: First intervention on the ‘Wing’: buttresses construction before WWII SHM IS AN ALTERNATIVE TO STRENGTHENING
- 12. 12ni.com Architecture of an Integrated Measurement System NI CompactDAQ hardware combines a 1-, 4-, or 8-slot chassis with over 50 measurement-specific NI C Series I/O modules and can operate stand-alone with a built-in controller or connect to a host computer over USB, Ethernet, or 802.11 Wi-Fi. Sensor Measurement Device Software
- 13. 13ni.com DYNAMIC MONITORING 16 SINGLE-AXIS ACCELEROMETERS STATIC MONITORING 20 DISPLACEMENT TRANSDUCERS ENVIRONMENTAL MONITORING 4 TEMPERATURE/RH SENSITIVITY: 1019.4 MV/(M/S²) FREQUENCY RANGE (± 10 %): 0.1÷2000 HZ RESOLUTION(DA 10,000 HZ): 0.00008 M/S² OPERATING TEMPERATURE : -45÷82 °C VOLTAGE: 0÷10 V MEASUREMENT RANGE: 10 CM HYSTERESIS: < 0.01 MM OPERATING TEMPERATURE:-30÷100 °C VOLTAGE: 0÷10 V PRECISION: +/- 2 % RH +/- 0.2 °C MEASUREMENT RANGE: 0÷100% RH - 20/0÷50 °C 12 PZ «Arcovoli» of the first level8 PZ inner gallery Where and what to measure ?
- 14. 14ni.com Family Highlight: Stand-Alone NI CompactDAQ Embedded Measurements and Logging • >50 I/O modules • Up to 24-bit, Up to 1 MS/s • Dual-core processor • 32 GB nonvolatile storage • 0 to 55 °C Operating Temp • 5g shock, 30g vibration • Windows or Real-Time OS • LabVIEW and NI-DAQmx
- 15. 15ni.com SHM UNDER OPERATIONAL CONDITIONS: STATIC MONITORING RESULTS CRACKOPENINGVS.TIME CRACKOPENINGVS. TEMERATURE
- 16. 16ni.com MAIN SHOCK: 25 JANUARY 2012 Prealpi Venete (VR) 2012-01-24 23:54:46 Magnitude: 4.2 Depth 10.3 Km Distance: 11,5 Km 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 tempo [s] -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 [m/s^2] acc7 acc8 acc9 Seismic event BASE TOP WING TOP AMPHITHEATER PGA [m/s2] Max. Acc. [m/s2] Amplif. factor Max Acc. [m/s2] Amplif. factor 25/01/201 2 0,619 1,93 3,11 1,251 2,02 29/05/201 2 0,078 0,98 12,56 0,40 5,13 Max. Acc. Base = 0,62 m/s2 Max Acc. Wing = 1,93 m/s2 MAIN SHOCK: 29 MAY 2012 Pianura Padana-Emiliana (MO) 2012-05-29 07:00:03 Magnitude: 5.8 Depth 10.2 Km Distance: 75 Km Max. Acc. Base = 0,08 m/s2 Max Acc. Wing = 0,98 m/s2 COMPARISON: MAX. ACCELRATIONS, AMPLIFICATION FACTORS AND ELASTIC RESPONSE SPECTRA Amplif. factor = 3,11 Amplif. factor = 12,56 SEISMIC MONITORING : EARTHQUAKE EVENTS
- 17. 17ni.com . MODE n° EXP FREQ [Hz] FEM FREQ [Hz] 1 1,92 1,68 2 2,61 2,42 3 4,83 4,91 4 5,87 5,89 5 6,10 6,20 6 7,10 7,18 A TOOL TO HELP CONSERVATION : MODELING AND NUMERICAL SIMULATION
- 18. 18ni.com A network of ancient monuments and civil structure in Verona (Italy)
- 19. 19ni.com Do not understimate hardware configuration and sensor placement
- 20. 20ni.com Do take advantage of platform flexibility Customer asked for non intrusive fissuration monitoring: We developed a brand new image acquisition application to monitor ancient frescos in Conegliano
- 21. 21ni.com Do work with partners Civil structure department Padua University
- 22. 23ni.com CLOUD COMPUTING INVESTIGATION PHASE INTERVENTION PHASE EVALUATION PHASE MAINTENANCE PHASE 4. Development Conclusion and perspective: SHM, smart city and IoT