دانلود Progressive collapse of structures

Abstract

Local  failure  of  one  structural  element  may  result  in the failure of another structural  element. Failure might thus progress throughout a major part or even all of the structure. After reviewing a couple of failure events, it is outlined why current probability-based  design  codes  are  inadequate  to  prevent  progressive  collapse.  It  is  discussed how  these  shortcomings  might  be  overcome  both  within  and  outside  a  probabilistic  framework. A pragmatic approach is suggested in which design according to current practice  is  complemented  by  additional  design  measures  with  particular  regard  to collapse resistance.