Assessment of Robustness and Disproportionate Collapse Vulnerability of Steel Moment-Frame Buildings

Published

August 19, 2009

Author(s)

Joseph A. Main, Fahim Sadek, Hai S. Lew

Abstract

Several prototype steel moment-frame buildings have been designed for the purpose of assessing their vulnerability to progressive collapse. The buildings were designed for moderate and high seismic regions. This paper summarizes the development of three-dimensional finite element models of these prototype buildings, with a focus on the modeling approach used for the connections and the composite floor system. Initial simulation results under a column removal scenario are presented to illustrate the model capabilities. Ongoing assessments of reserve capacity and progressive collapse vulnerability using these models are part of a larger study aimed at quantifying and comparing the relative robustness of different structural systems.

Proceedings Title

Proceedings, Second International Workshop on Performance, Protection & Strengthening of Structures Under Extreme Loading (PROTECT2009)

Conference Dates

August 19-21, 2009

Conference Location

Hayama

Pub Type

Conferences

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Keywords

progressive collapse, steel buildings, moment frame, seismic design, finite element modeling

Citation

Main, J. , Sadek, F. and Lew, H. (2009), Assessment of Robustness and Disproportionate Collapse Vulnerability of Steel Moment-Frame Buildings, Proceedings, Second International Workshop on Performance, Protection & Strengthening of Structures Under Extreme Loading (PROTECT2009), Hayama, -1, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=902887 (Accessed October 10, 2025)