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Approaches to measures of structural robustness
Publikationstyp
Journal Article
Date Issued
2010-08-06
Sprache
English
Author(s)
Institut
Volume
7
Issue
7-8
Start Page
625
End Page
631
Citation
Structure and Infrastructure Engineering 7 (7-8): 625-631 (2011)
Publisher DOI
Scopus ID
Publisher
Taylor & Francis
Robustness is a desirable property of structural systems which mitigates their susceptibility to progressive collapse. It is defined as the insensitivity of a structure to local failure. To examine a structure in terms of its robustness, a quantitative description by means of a measure would be useful. The measure could be used for evaluation, optimisation and regulation of robustness. To achieve these tasks, the measure must be expressive, objective, simple, calculable, and generally applicable. Some simple formulations of stiffness, damage, or energy-based measures of robustness developed by the authors are presented and discussed regarding the suggested requirements and possible applications. It is shown that the requirements cannot all be satisfied to the same level at the same time. Structures which tend towards different types of collapse may be favourably described by different measures of robustness. © 2011 Taylor & Francis.
Subjects
Damage
Disproportionate collapse
Energy
Measures of robustness
Progressive collapse
Stiffness
DDC Class
690: Hausbau, Bauhandwerk