Numerical analyses of a reinforced concrete frame subjected to a column removal scenario

What is it about?

The expression structural robustness is used in civil engineering to indicate an inherent property of a structure that allows it to resist against an accidental event, preventing a progressive and/or disproportionate collapse. The former is one that affects more structural elements connected together, which collapse one after the other. The latter instead, is closely related to the event that caused it: the structure can be damaged as a result of an exceptional event, but damage must be proportional to the cause that produced it.

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Why is it important?

The purpose of this work is to understand how different finite element models, with distinct levels of modeling, are able to replicate the behavior of a frame subjected to sudden removal of a column. This study may be useful to provide the degree of approximation achievable with commercial software.