Mitigation of progressive collapse in concrete structure incorporating the GSA linear static procedure

Abstract

A progressive collapse involves a series of failures that lead to partial or total collapse of a structure(Kim & Kim, 2009). The first aim of this study is to understanding the most critical condition of column removal to create progressive collapse. The second one, is to understanding the effects of increasing beam capacity in various condition throughout the structure levels to mitigate of progressive collapse. The case study is a 12-story concrete structure and the analysis and design is according to Euro Cod and the General Services Administration (GSA) standard. For objective one, three condition of column removal center, corner and side column removal are chosen to understanding the most critical of column removal. For the second objective, three alternative of beam dimension increasing is chosen. The alternatives are, moderate increasing in beam depth in all stories the second and the third one are significant increasing in upper levels and significant increasing in bottom story levels. The results of this study show that, the center condition has the most potential of progressive collapse after column removal. Also, the alternate 1 and 2 are good method however; the third alternative is not an effective way to mitigate the progressive collapse.