presentation - Northeastern University
presentation - Northeastern University presentation - Northeastern University
8 Existing approaches for collapse modeling Adaptive shifted integration (ASI) method � Isobe and Toi (2000), Natahira et al (2008) � Physical equivalent of a linear Timoshenko beam and rigid bars connected via rotational spring � Proposed to shift the integration point in a beam element depending on the stage of plasticity/facture to handle strong discontinuity in progressive collapse analysis Linear Timoshenko beam and its physical equivalent Natahira et al (2008)
9 Scope of research This research seeks “to create” effective and practical computational formulations for collapse modeling of steel structures � CZM continuum model + CZM-based macro-model formulations for structural collapse (Northeastern Uni.) � A stochastic framework to identify accurate collapse limit states and critical damage measures via incremental dynamic analysis (UIUC)
- Page 1 and 2: A CZM-based Macro-model for Progres
- Page 3 and 4: 3 Key elements of structural analys
- Page 5 and 6: 5 Existing approaches for collapse
- Page 7: 7 Existing approaches for collapse
- Page 11 and 12: 11 Cohesive law CZM schematics Intr
- Page 13 and 14: 13 CZM: PPR cohesive model Based on
- Page 15 and 16: CZM for ductile materials �� Va
- Page 17 and 18: N 17 A CZM-based macro-model 1 3 3
- Page 19 and 20: Modified Multi-surface Kinematic Ha
- Page 21: 21 Progressive collapse � Aim to
8<br />
Existing approaches for collapse modeling<br />
Adaptive shifted integration (ASI) method<br />
� Isobe and Toi (2000), Natahira et al (2008)<br />
� Physical equivalent of a linear Timoshenko beam and rigid bars<br />
connected via rotational spring<br />
� Proposed to shift the integration point in a beam element depending<br />
on the stage of plasticity/facture to handle strong discontinuity in<br />
progressive collapse analysis<br />
Linear Timoshenko beam<br />
and its physical equivalent<br />
Natahira et al (2008)
Change language