The Importance of Dynamic Effects in Progressive Collapse
Citation:V. Janssens and D.W. O'Dwyer, The Importance of Dynamic Effects in Progressive Collapse, 34th IABSE Symposium: Large Structures and Infrastructures for Environmentally Constrained and Urbanised Areas, Venice, Italy, 2010
The Importance of Dynamic Effects in Progressive Collapse.pdf (Published (author's copy) - Peer Reviewed) 491.7Kb
This paper presents a methodology to assess the extent of damage to a multi-storey structure following localised collapse. This is accomplished through the design of an algorithm to track progressive collapse in a structure and its implementation as a computer program. The algorithm is based on the alternative path method of analysis. Individual elements are systematically removed from the structure, and these altered structures are analysed to determine the extent of the resulting collapse. By considering the effects of damage to all members in a structure the algorithm can identify whether a structure is unduly sensitive to the effects of localised damage. In order to accurately model the progression of collapse through a structure, it is necessary to consider dynamic effects. The algorithm is extended to include dynamic effects and calculate the corresponding increased bending moments and shear forces.
Irish Research Council for Science Engineering and Technology
Other Titles:34th IABSE Symposium: Large Structures and Infrastructures for Environmentally Constrained and Urbanised Areas
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