ABSTRACT
Only the United States Department of Defense (DoD) guidelines provide details about the nonlinear procedures to be applied. In June 2005, they issued latest guidelines for progressive collapse
1 INTRODUCTORY REMARKS AND CODE PROVISIONS
The tragic event of the World Trade Centre collapse has pushed the scientific community to find the way to reduce the occurrence of progressive (or disproportionate) collapse, what is related to the improvement of the structural robustness under extreme accidental events.
