Assessment of Connection Ductility in Fire

Abstract:

Catenary action has been regarded as a viable load-carrying mechanism in fire for providing structural robustness to steel framed buildings, and this loading mechanism heavily relies on connection strength and ductility under exceptional loading conditions. However, the current code of practice has no detailed guidance on estimation of the connection ductility. This paper is dedicated to demonstration of how to quantify connection ductility in a fire or non-fire situation through the component-based approach. Connection ductility has been evaluated with emphasis on elongation and strength of connection components in each bolt row, and response of brittle components has been identified as an index for connection ductility and failure mechanism in a fire situation.

• Periodical: Applied Mechanics and Materials (Volumes 353-356)
• Pages: 2305-2312
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.353-356.2305
• Online since: August 2013
• Authors: Ying Hu*, Zi Xiong Chen, Ming Kui Xiao, Ying Ming Li, Yong Jun Liu
• Keywords: Connection, Ductility, Fire, Progressive Collapse, Robustness

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