Structural Health Monitoring: The GENESI Perspective Prof. Chiara Petrioli Università degli Studi di Roma «La Sapienza»

Structural Health Monitoring:The GENESI Perspectivehttp://fp7-genesi.di.uniroma1.it

Prof. Chiara PetrioliUniversità degli Studi di Roma «La Sapienza»Project Coordinator and Director of CIS Cyber Physical Systems Laboratory

Laboratory of Cyber Physical Systems

GENESI – A Technology Enabler for Long Lasting Structural Health Monitoring

GENESI technology addresses the demand for long lasting, reliable, and flexible sensing systems, by designing and implementing a novel generation of “green wireless sensor networks” (i.e., low power energy harvesting and wake up radio equipped devices, interconnected into a network) which can be embedded in buildings and infrastructures at the time of construction and be able to provide monitoring and control intelligence over the whole structure lifetime.


GENESI technology addresses the demand for long lasting, reliable, and flexible sensing systems, by designing and implementing a novel generation of “green wireless sensor networks” which can be embedded in buildings and infrastructures at the time of construction and be able to provide monitoring and control intelligence over the whole structure lifetime.

To achieve the above objectives GENESI combines advanced HW components (low power, flexible, multifunctional sensing platform equipped with a smart power unit and wake up radio capabilities) with novel energy efficient, energy harvesting and wake up radio aware communication paradigms, in-network distributed processing and reasoning mechanisms.


GENESI technology addresses the demand for long lasting, reliable, and flexible sensing systems, by designing and implementing a novel generation of “green wireless sensor networks” which can be embedded in buildings and infrastructures at the time of construction and be able to provide monitoring and control intelligence over the whole structure lifetime.

The system has been designed to be interfaced to a variety of sensors, to be low power and reliable, modular, easy to deploy, manage and reconfigure.

The resulting system provides the core of the next generation of systems for structural health monitoring that are long lasting, pervasive, totally distributed and autonomous.

Why is infrastructure monitoring needed?

Because failing and collapsing structures

Do injure and kill people - this almost daily

Do cause high costs (repair, replacement,

compensating measures, damage to neighbourhood)

Do not only happen in underdeveloped and

threshold countries


Structural health failures and collapse,2011-12

Wikipedia, Major Bridge Failures, 2011-12

Structural health failures and collapse,2011-12

Wikipedia, Major Structural Failures, 2009-12


• Do injure and kill people - this almost daily




• Do cause high costs (repair, replacement,





• Do cause high costs (repair, replacement,


• Do not only happen only in underdeveloped and

threshold countries


Terminal Collapse - Paris Airport Charles de Gaulle, 2004

Design faults

Why do structures fail ?


Design faults

Tunnel Collapse (during construction), Chienberg Tunnel , Switzerland, 2002

Unknown or wrong interpretation of loads and strengths



Design faults

Tunnel Collapse (during construction), Chienberg Tunnel , Switzerland, 2002


Excavation Collapse, Cologne, Germany, 2002

Faulty construction


Aging of materials/chemical reaction

Why do structures fail ?Public Swimming pool, Uster, Switzerland, 1985

Aging of materials/chemical reaction

Why do structures fail ?Public Swimming pool, Uster, Switzerland, 1985 CTV building collapse after earthquake Christchurch, NZ, 2011

Outer impacts/accidents (unexpected failure modes)

Reasons for failure: Design faults


Bad or wrong construction

Aging of materials / chemical reaction

Outer impacts, accidents (unexpected failure modes)

Or: Combination of Causes


Good news:

Most of the failures can be prevented or damage can be

reduced by applying risk management processes:

How to prevent failures

Good news:




• Preliminary investigation • Regular measurements• Contineous monitoring

Good news:




• Preliminary investigation • Regular measurements• Contineous monitoring

SHM – structural health monitoring

Relative damage


Instrumented Bridge

Instrumented Underground Tunnel

Pont de la Poya, Fribourg, CH

Deployment scenarios of the GENESI system

Rome B1 Underground

Wireless system without cabling or wiring;

Independence from electronic infrastructure (powering, data transmission);

Easy deployment (adding and removal of nodes);

Remote system reconfiguration;

Many analog and digital interfaces available on each node;

Flexible monitoring rates and advanced sampling mechanisms;

Alarming when values are out of expected range; Service

alarms when system is not in normal operation mode.

GENESI – SHM @ a new level

System is designed for long lifetime without maintenance (self powering) All data can be transmitted via Internet into a data base Data accessible on webpages with time-line graphs for SHM experts

Also for constructions that are already accomplished the GENESI SHM:

Cables do not change the esthetics of a construction and cannot be damaged; Small networks with only a few nodes and sensors are feasible and economic; Most types of existing sensors are or can easily be implemented in the system; System can be extend later, when needed: instrumented sections can be added

ore removed without affecting system operation, the system can be reconfigured from remote.


WebDavis


Thank you for your attention

Prof. Chiara Petrioli, Project Coordinator, [email protected]

Ing. Holger Worsching, WP6 leader, Solexperts

http://fp7-genesi.di.uniroma1.it

mailto:[email protected]



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Structural Health Monitoring: The GENESI Perspective Prof. Chiara Petrioli Università degli Studi di Roma «La Sapienza»