Vulnerability and Risk Assessment of Single-Layer Reticulated Domes Subjected to Earthquakes
Publication: Journal of Structural Engineering
Volume 138, Issue 12
Abstract
In order to provide a good understanding of the damage states of single-layer reticulated domes under earthquake loading, a number of increment dynamic analyses are carried out on domes with different spans, rise-span ratios, roof weights, and other parameters. A model is proposed for the quantitative evaluation of damage. The damage states for single-layer reticulated domes are defined based on their structural dynamic performance and corresponding damage factors. The vulnerability of single-layer reticulated domes is shown using fragility curves with different damage states. A model of probability distribution for seismic hazard, structural damage probability, and various losses, including direct and indirect economic loss and maimed and fatality loss, is discussed for assessing risk. The risk assessment of a single-layer reticulated dome is performed for different seismic intensities for its loss or fatality acceptability.
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Acknowledgments
The present work has been conducted with the financial support from the Chinese National Natural Science Foundation (project designation: 90715034). The discussions with Professor Mark Stewart, the Director of the Centre for Infrastructure Performance and Reliability at the University of Newcastle during the preparation of this paper, are also acknowledged.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 138 • Issue 12 • December 2012
Pages: 1505 - 1514
Copyright
© 2012 American Society of Civil Engineers.
History
Received: Jul 24, 2011
Accepted: Feb 17, 2012
Published online: Feb 22, 2012
Published in print: Dec 1, 2012
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