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Trends in Applied Sciences Research
  Year: 2014 | Volume: 9 | Issue: 8 | Page No.: 450-460
DOI: 10.3923/tasr.2014.450.460
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Vulnerability Assessment of Progressive Collapse of Steel Moment Resistant Frames

Amir Mohammad Yousefi, Mojtaba Hosseini and Nader Fanaie

A structure collapse progressively when its vital vertical member fails. This cause the failure of adjoining members that finally leads to partial or total collapse of a structure. Many regulations such as the Unified Facilities Criteria (UFC) and General Services Administration (GSA) addressed the structural progressive collapse phenomenon. In the current study, the progressive collapse potential and vulnerability of steel moment resistant frame building structures, which are seismically designed based on Iranian National Building Codes (INBC) and Iranian code of practice for seismic resistant design of buildings (Standard No. 2800), was investigated. It was achieved by performing nonlinear dynamic analysis of steel moment frames, designed for very high seismic zones. The exterior frames of such structures were investigated for collapse progression while losing one primary column on height of the structures. The analysis results revealed that the columns of designed structures had not adequate strength to survive one corner column loss of the structures before the occurrence of next failure and so the structures have high potential for progressive collapse. Finally, the building structures do not meet the UFC acceptance criteria. Hence, some modifications have been proposed on the INBC codes to meet the UFC limits.
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How to cite this article:

Amir Mohammad Yousefi, Mojtaba Hosseini and Nader Fanaie, 2014. Vulnerability Assessment of Progressive Collapse of Steel Moment Resistant Frames. Trends in Applied Sciences Research, 9: 450-460.

DOI: 10.3923/tasr.2014.450.460






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