Evaluation of Dynamic Collapse Behavior of Steel Moment Frames Damaged by Blast

Abstract:

Blast effects on structures and blast mitigation strategies have been vigorously studied in the world. The alternate path method, or common progressive collapse analysis method, of structures assumes the threat-independent removal of vertical load-carrying elements. However, in reality, a blast-induced column-missing event will produce the damage on adjacent structural elements and the rapid dynamic response of the structures. In this study, the strain rate effects on the dynamic collapse behavior of steel moment frames are investigated by performing the blast-induced sequential progressive collapse analysis. Then, the improvement of the progressive collapse analysis method is discussed based on the numerical results.

• Periodical: Applied Mechanics and Materials (Volume 82)
• Pages: 404-409
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.82.404
• Online since: July 2011
• Authors: Kyung Koo Lee, Lan Chung, Sang Hyun Lee, Tae Won Park, Jieun Rho
• Keywords: Blast, Progressive Collapse, Steel Moment Frame, Strain Rate

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