CTA 2013 Robustezza Strutturale e Resilienza di Sistemi Strutturali e Infrastrutturali
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CTA 2013 Robustezza Strutturale e Resilienza di Sistemi Strutturali e Infrastrutturali

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    CTA 2013 Robustezza Strutturale e Resilienza di Sistemi Strutturali e Infrastrutturali CTA 2013 Robustezza Strutturale e Resilienza di Sistemi Strutturali e Infrastrutturali Presentation Transcript

    • 1 Robustezza e Resilienza di Sistemi Strutturali e Infrastrutturali Franco Bontempi Professore Ordinario di Tecnica delle Costruzioni Facolta’ di Ingegneria Civile e Industriale Universita’ degli Studi di Roma La Sapienza
    • 2 www.francobontempi.org Str o N GER
    • 3 Concepts
    • 4 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 4 NEGATIVE CAUSE STRUCTURALQUALITY more robust less robust
    • 5 Performance layout OBJECT NET Structural System Infrastructural System USE SAFETY INTEGRITY f(D) D Mean Frequent Maximum Rare Accidental Exceptional BlackSwan SLS ULS ILS
    • 6RESILIENCE Life Cycle View
    • 7 RESILIENCERESILIENCE CONSTRUCTIONS NEW EXISTING COLLAPSED “As Designed” “As Built” “As Actual” “As Failed” www.francobontempi.org Str o N GER
    • 8 CONSTRUCTIONS NEW EXISTING COLLAPSED DESIGN ENVIRONMENT / BOUNDARY CONDITIONS FSI “As Designed” “As Built” “As Actual” “As Failed” HPLC LPHC Black Swan Conceptual Design Innovatice Concepts Structural Oprimization Advanced Materials Special Devices Structural Control Energy Harvesting NATURAL ANTROPIC ACCIDENTAL EXCEPTIONAL SOIL - STRUCTURE WIND - STRUCTURE WAVE - STRUCTURE ACTIONS INTERACTIONS GEOLOGICAL ASPECTS EARTHQUAKES Codes & Standards Information Retrivial Data Mining Risk Analysis Performance Based Design Dependability Structural Identification Structural Health Monitoring Damage Assessment Remaining Capacity Structural Refurbishment Structural Augmentation Codes Compliance Historical and Monumental Costructions Back Analysis Forensic Engineering Legal Issues Components and Structures Testing Experimental Design Rapid Prototyping Fire Explosions Activities
    • 9 Case
    • 10
    • 11 www.francobontempi.org Str o N GER Seismic Action
    • 12 www.francobontempi.org Str o N GER Critical Node
    • 13 WU WD HY CBCR CU RETAINING WALL UP (WU) RETAINING WALL DOWN (WD) HYDROELECTRIC POWER STATION (HY) CONDUIT UP (CU) CONDUIT ROSALBA CONDUIT PAVONCELLI BIS 1 2 3 4 5 6 7 1 2 3 4 5 6 7 HYDRAULIC JUNCTION ELECTRICITY WATER Infrastructure plan view Individuation of the system/network components Representation of the system Outputs Node Congestion
    • 14 WU WD HY 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
    • 15 www.francobontempi.org Str o N GER System with Element connected in Parallel
    • 16 www.francobontempi.org Str o N GER Structural System Degradation
    • 17 www.francobontempi.org Str o N GER
    • 18 www.francobontempi.org Str o N GER Damage at Local Level
    • 19 www.francobontempi.org Str o N GER Damage at Element Level
    • 20 www.francobontempi.org Str o N GER Damage at Structural Level
    • 21 Design
    • 22
    • 23
    • 24
    • 25
    • 26 www.francobontempi.org Str o N GER
    • 27 Concepts again
    • 28 Perrow LINEAR interactions NONLINEAR LOOSEcouplingsTIGHT www.francobontempi.org Str o N GER
    • 29 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
    • 30 Structural System
    • 31 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
    • 32