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Survey of contemporary practices for disproportionate collapse prevention
Wood Science, University of British Columbia, Canada.ORCID iD: 0000-0002-9348-9575
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering.ORCID iD: 0000-0001-9196-0370
Institute of Structural Engineering, ETH Zurich, Switzerland.
Wood Engineering, University of Northern British Columbia, Canada.ORCID iD: 0000-0001-9699-2750
2019 (English)In: Engineering structures, ISSN 0141-0296, E-ISSN 1873-7323, Vol. 199, article id 109578Article in journal (Refereed) Published
Abstract [en]

This paper summarises contemporary practices and implementations of the existing codes and guidelines with respect to disproportionate collapse prevention. Here, focus is given to structural robustness, defined as the ideal method to decrease the probability of disproportionate collapse in buildings following an initial damage. The results from a global survey with 171 participants (mainly structural engineers) are presented. By comparing practices applied to different structural materials (steel, concrete and timber) and in different regions (Canada, USA, Europe, Australia/New Zealand), areas of improvements for the existing codes and guidelines as well as further research are identified. The results emphasise the importance of including specific recommendations for structural robustness in building codes, applicable to high importance and high occupancy structures. A performance-based approach is preferable, rather than prescriptive requirements, for practical and economic solutions. In addition, the obtained responses highlight the need to further develop the existing indirect and direct methods for disproportionate collapse prevention and structural robustness to include material-specific considerations.

Place, publisher, year, edition, pages
Elsevier, 2019. Vol. 199, article id 109578
Keywords [en]
Progressive collapse, Structural robustness, Structural safety, Design practice
National Category
Other Civil Engineering Other Mechanical Engineering
Research subject
Wood Science and Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-75779DOI: 10.1016/j.engstruct.2019.109578Scopus ID: 2-s2.0-85071399817OAI: oai:DiVA.org:ltu-75779DiVA, id: diva2:1347120
Note

Validerad;2019;Nivå 2;2019-09-02 (johcin)

Available from: 2019-08-30 Created: 2019-08-30 Last updated: 2019-09-10Bibliographically approved

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Huber, Johannes Albert Josef

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