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)