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Kobe + DICEA + code_aster: Creating a framework for the validation - - PowerPoint PPT Presentation

EDF Lab, Saclay, 20 th March 2018 Kobe + DICEA + code_aster: Creating a framework for the validation of procedures with engineered masonry Su Summar ary 00: about us 01: archetypal masonry elements 02: epistemic uncertainty reduction 03:


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Kobe + DICEA + code_aster: Creating a framework for the validation

  • f procedures with engineered masonry

EDF Lab, Saclay, 20th March 2018

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Su Summar ary

01: archetypal masonry elements 02: epistemic uncertainty reduction 03: dynamic identification 00: about us 04: nonlinear dynamics

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Kobe is an approved spin-off at the University of Florence Department of Civil and Environmental Engineering.

Me Member bers

Vladim imir ir Cerisan sano Kovačević Civil engineer and resarcher Founder | Coordination Riccar cardo

  • Coraz

azzi zi Civil engineer and researcher Founder | Technical Area Luca Facch chin ini DICEA-UNIFI associate professor Scientific mentorship Michele e Betti DICEA-UNIFI associate professor Founder | Scientific coordination Gianni i Bartoli

  • li

DICEA-UNIFI associate professor Founder | Scientific mentorship

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Various levels of expertise are offered through the knowledge and experience of the members and the partners.

Kob

  • be

Cultural Heritage Structural Health Monitoring Modeling & Simulation Seismic Engineering Wind Engineering Structural Design Software Development

Masonry RC Steel Timber Composite

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Existing constructions are exposed to heavy risks because: 1) they weren’t meant to resist to extraordinary events 2) their initial status is unknown

Ri Risk sk ex expo posu sure

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Ma Maso sonr nry y Archet hetypes ypes

“Engineered” masonry vs chaotic masonry. Main structural elements: 1) columns 2) walls 3) arches and vaults

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Vaul ult

Full-scale laboratory test on a vault subject to a corner settlement. Phase 1: unreinforced Phase 2: reinforced with FRP strips

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Vaul ult

1) quasi-static loading (corner settlement) 2) different constitutive laws (MAZARS and ENDO_ISOT_BETO N) 3) sensitivity analysis 4) experimental test data validation

s=0.5cm s=2.0cm s=3.0cm s=5.0cm fmt=0.15 N/mm2 fmt=0.35 N/mm2 fmt=0.25 N/mm2

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Wall ll

Laboratory tests for static, cyclic and dynamic behaviour

  • f masonry wall

elements.

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Wall ll

1) homogenization techniques (Lourenço et alii) 2) elastic modulus sensitivity analysis 3) cyclic behaviour (Naraine and Sinha)

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Ep Epistem istemic ic un uncer ertain tainty ty

What can Reverend Thomas Bayes do with masonry related uncertainties? We can update and reduce the uncertainty level using the Bayes theorem.

?

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Dy Dyna namic ic identi entific icatio ation

Identification of the free height and the elastic modulus of the Becci tower. Assessment of the fragility curves based

  • n the sensitivity of

the compressive and tensile strength.

Bartoli G., Monchetti S., Betti M., Marra A. M. (2017). Robu

  • bust

st se seismi smic fra ragi gility curves for

  • r ma

mason sonry tow

  • wers and their Baye

yesi sian updating using experimen mental data. Proceedings of ANIDIS 2017, Pistoia, September.

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Non

  • nlin

linear ear dy dyna namics mics

Procedures have been set. We believe that 3d analysis will be the future in the assessment of historical and existing buildings, not only in the masonry field.

Facchini L., Betti M., Corazzi R., Cerisano Kovačević V . (2017). Non Nonlinear se seismi smic behaviou viour

  • f
  • f

hist stori

  • rical

ma mason sonry towe

  • wers by

by means of

  • f di

different numeri merical mod

  • dels.

Proceedings

  • f

EURODYN 2017, Roma September 11-13.

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Thank you for the kind attention! www.kobe-ie.com info@kobe-ie.com