cta 2013 robustezza strutturale e resilienza di sistemi strutturali e infrastrutturali
TRANSCRIPT
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Robustezza e Resilienza
di Sistemi Strutturali e Infrastrutturali
Franco BontempiProfessore Ordinario di Tecnica delle Costruzioni
Facolta’ di Ingegneria Civile e Industriale
Universita’ degli Studi di Roma La Sapienza
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Concepts
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Structural Robustness
ATTRIBUTE
S
RELIABILITY
AVAILABILITY
SAFETY
MAINTAINABILITY
INTEGRITY
SECURITY
FAILURE
ERROR
FAULT
permanent interruption of a system ability
to perform a required function
under specified operating conditions
the system is in an incorrect state:
it may or may not cause failure
it is a defect and represents a
potential cause of error, active or dormant
THREATS
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NEGATIVE CAUSEST
RU
CT
UR
AL
QU
AL
ITY
more robust
less robust
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Performance layout
OBJECT
NET
Structural
System
Infrastructural
System
USE
SAFETY
INTEGRITY
f(D)
D
Mean
Frequent
Maximum
Rare
Accidental
Exceptional
Bla
ck
Sw
an
SLS
ULS
ILS
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6RESILIENCE
Life Cycle View
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RESILIENCERESILIENCE
CO
NS
TR
UC
TIO
NS
NEW
EXISTING
COLLAPSED
“As Designed”
“As Built”
“As Actual”
“As Failed”
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CO
NS
TR
UC
TIO
NS
NEW
EXISTING
COLLAPSED
DESIGN
ENVIRONMENT/
BOUNDARY
CONDITIONS
FSI
“As Designed”
“As Built”
“As Actual”
“As Failed”
HPLC
LPHC
Black Swan
Conceptual DesignInnovatice Concepts
Structural OprimizationAdvanced Materials
Special DevicesStructural ControlEnergy Harvesting
NATURAL
ANTROPIC
ACCIDENTAL
EXCEPTIONAL
SOIL - STRUCTURE
WIND - STRUCTURE
WAVE - STRUCTURE
ACTIONS
INTERACTIONS
GEOLOGICAL ASPECTS
EARTHQUAKES
Codes & StandardsInformation Retrivial
Data MiningRisk Analysis
Performance BasedDesign
Dependability
Structural IdentificationStructural Health Monitoring
Damage AssessmentRemaining Capacity
Structural RefurbishmentStructural Augmentation
Codes ComplianceHistorical and
Monumental Costructions
Back AnalysisForensic Engineering
Legal Issues
Components and Structures TestingExperimental Design
Rapid Prototyping
Fire
Explosions
Activities
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Case
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Seismic Action
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Critical Node
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WU
WDHY
CBCR
CU
RETAINING WALL UP (WU) RETAINING WALL DOWN (WD) HYDROELECTRIC POWER STATION (HY)
CONDUIT UP (CU) CONDUIT ROSALBA
CONDUIT PAVONCELLI BIS
1
2
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5
6
7
1 2 3
4 5 6
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HYDRAULIC JUNCTION
ELECTRICITY
WATER
Infrastructure plan view Individuation of the system/network components Representation of the system
Outputs
Node Congestion
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WU
WDHY
CBCR
CU
(0,0) (92,0)
(92,29)
(0,29)
(0,54)
(0,62) (28.5,62)
(53,56)
(63,45)
(92,32)
(92,34)
System with Element connected in Series
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System with Element connected in Parallel
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Structural System Degradation
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Damage at Local Level
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Damage at Element Level
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Damage at Structural Level
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Design
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Concepts again
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28Perrow
LINEAR interactions NONLINEAR
LOO
SE
c
ou
pli
ng
sT
IGH
T
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FAR FIELD ZONE
EXCHAGE ZONE
STRUCTURE
FAR FIELD ZONE
EXCHAGE ZONE
STRUCTURE
INFRASTRUCTURE
OBJECT
NET
Local / Punctual
Scale
Global / Regional
Scale
Structural
System
Infrastructural
System
Holistic View
Also if artificial,
these systems
need to have
necessarily
evolutive soundness,
ecological coherence
and sustainability
characteristics
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Structural System
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ATTRIBUTES
THREATS
MEANS
RELIABILITY
FAILURE
ERROR
FAULT
FAULT TOLERANT
DESIGN
FAULT DETECTION
FAULT DIAGNOSIS
FAULT MANAGING
DEPENDABILITY
of
STRUCTURAL
SYSTEMS
AVAILABILITY
SAFETY
MAINTAINABILITY
permanent interruption of a system ability
to perform a required function
under specified operating conditions
the system is in an incorrect state:
it may or may not cause failure
it is a defect and represents a
potential cause of error, active or dormant
INTEGRITY
ways to increase
the dependability of a system
An understanding of the things
that can affect the dependability
of a system
A way to assess
the dependability of a system
the trustworthiness
of a system which allows
reliance to be justifiably placed
on the service it delivers
SECURITY
High level / active
performance
Low level / passive
performance
Dependability
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