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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 tekniska universitet, Institutionen för teknikvetenskap och matematik, Träteknik.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 (engelsk)Inngår i: Engineering structures, ISSN 0141-0296, E-ISSN 1873-7323, Vol. 199, artikkel-id 109578Artikkel, forskningsoversikt (Fagfellevurdert) 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.

sted, utgiver, år, opplag, sider
Elsevier, 2019. Vol. 199, artikkel-id 109578
Emneord [en]
Progressive collapse, Structural robustness, Structural safety, Design practice
HSV kategori
Forskningsprogram
Träteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-75779DOI: 10.1016/j.engstruct.2019.109578ISI: 000497245600002Scopus ID: 2-s2.0-85071399817OAI: oai:DiVA.org:ltu-75779DiVA, id: diva2:1347120
Merknad

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

Tilgjengelig fra: 2019-08-30 Laget: 2019-08-30 Sist oppdatert: 2019-12-09bibliografisk kontrollert

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