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Title

Risk‐informed requirements for design and assessment of structures under temporary use

AuthorsHingorani, Ramón; Tanner, Peter
KeywordsAcceptance criteria
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Risks to persons
Structural reliability
Issue Date2019
PublisherWiley-VCH
CitationRisk Analysis 40(1): 68-82 (2019)
AbstractThe relatively high failure rates, with important consequences in many cases, suggest that the implicitly acceptable risk levels corresponding to temporary civil engineering structures and activities might exceed the bounds of normally acceptable levels associated with different societal activities. Among other reasons, this may be attributed to the lack of a rational approach for the assessment of risks associated with the different technologies supporting these activities in general, and for structures in particular. There is a need for establishing appropriate target reliability levels for structures under temporary use taking into account specific circumstances such as reduced risk exposure times. This issue is being addressed in this article. Acceptance criteria for building‐structure‐related risks to persons obtained in prior studies are adapted to the special circumstances of nonpermanent risk exposure. Thereby, the general principle followed is to maintain the same risk levels per time unit as for permanently occupied buildings. The adaptation is based on the statistical annual fatality rate, a life safety risk metric that allows for a consistent comparison of risks across different societal activities and technologies. It is shown that the target reliability indices taking account of the temporary use of buildings might be significantly higher than the values suggested for permanently used structures.
Publisher version (URL)https://doi.org/10.1111/risa.13322
URIhttp://hdl.handle.net/10261/210861
DOI10.1111/risa.13322
ISSN0272-4332
E-ISSN1539-6924
Appears in Collections:(IETCC) Artículos
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