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Reliability-based design of interventions in deteriorated timber structures

Sousa, Hélder S.; Neves, Luís C.

Authors

Hélder S. Sousa



Abstract

When accommodating new uses or mitigating the consequences of deterioration, the strength increase of existing structures is significantly more onerous than a similar increase at the design stage of new structures. The safety methods prescribed in current standards were defined for the design of new structures and are frequently conservative for the assessment and repair of existing structures. This work will introduce the fundamental aspects of structural reliability and their application in the context of existing timber structures regarding the use of target reliability indices. First, the fundamental methods of structural reliability are introduced. The use of reliability methods requires the use of more detailed information in respect with material properties, loads, and model uncertainty. The main sources of such information are described. After overviewing the fundamental methods of structural reliability, methods to introduce additional information, namely results of non-destructive tests in the structural assessment are discussed. Finally, the intervention on a timber structure will be analyzed, within a case study, by considering different repair scenarios that lead to discussions on different suitable safety thresholds for existing and repaired structures.

Citation

Sousa, H. S., & Neves, L. C. (in press). Reliability-based design of interventions in deteriorated timber structures. International Journal of Architectural Heritage, 12(4), https://doi.org/10.1080/15583058.2018.1436205

Journal Article Type Article
Acceptance Date Jan 19, 2018
Online Publication Date Feb 16, 2018
Deposit Date May 9, 2018
Publicly Available Date Feb 17, 2019
Journal International Journal of Architectural Heritage
Print ISSN 1558-3058
Electronic ISSN 1558-3058
Publisher Taylor & Francis Open
Peer Reviewed Peer Reviewed
Volume 12
Issue 4
DOI https://doi.org/10.1080/15583058.2018.1436205
Public URL http://eprints.nottingham.ac.uk/id/eprint/51661
Publisher URL https://www.tandfonline.com/doi/full/10.1080/15583058.2018.1436205
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf
Additional Information This is an Accepted Manuscript of an article published by Taylor & Francis in International Journal of Architectural Heritage on 16 Frbruary 2018, available online: http://www.tandfonline.com/10.1080/15583058.2018.1436205

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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