AISC RESEARCH ON STRUCTURAL STEEL TO RESIST BLAST AND PROGRESSIVE COLLAPSE

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AISC RESEARCH ON STRUCTURAL STEEL TO RESIST BLAST AND PROGRESSIVE COLLAPSE

Author: Prof. T. Krauthammer | Size: 2.2 MB | Format: PDF | Quality: Unspecified | pages: 20

This paper provides an overview of key issues related to the survivability of steel buildings subjected to explosive load
incidents, and an outline of required research to address some of the problems that were identified in previous studies.
Explosive loads associated with high explosive devices are expected to induce significant localized structural damage
that could evolve into massive structural collapse. Recent numerically simulated responses of individual structural steel
elements and connections to such loads have raised serious concerns about their ability to survive explosive loading
incidents. Blast resistant structural systems are designed according to various guidelines, some of which are based on
simplified assumptions whose suitability might be questioned. Furthermore, the relationships between localized
structural damage and numerically-simulated progressive collapse have highlighted very complicated nonlinear dynamic
phenomena. These phenomena require further investigation using more realistic representations of the corresponding
issues.

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