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Review and analysis of fire resistance tests of timber members in bending, tension and compression with respect to the Reduced Cross-Section Method
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Hållbar Samhällsbyggnad.
RISE, SP – Sveriges Tekniska Forskningsinstitut.
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Hållbar Samhällsbyggnad.ORCID iD: 0000-0002-8001-401x
RISE, SP – Sveriges Tekniska Forskningsinstitut.
2014 (English)In: Fire safety journal, ISSN 0379-7112, E-ISSN 1873-7226, Vol. 68, p. 81-99Article in journal (Refereed) Published
Abstract [en]

The Reduced Cross-Section Method (RCSM) provides a popular method for the design of timber members exposed to fire, using an effective cross-section and mechanical properties at normal temperature. The RCSM was adopted from a single publication and was originally developed for single-span beams exposed to bending load. It has been introduced in Eurocode 5 for a large range of timber members, including columns under compression and members under tension. Recently, the applicability of the method and its extended applications were called into question on the basis of limitations and contradictions found by advanced simulations. This paper analyses a total of 153 fire resistance tests (117 members in bending, six members in compression and 30 members in tension) with respect to the RCSM. The analysis shows that (i) most of the references are of too poor quality, or are incomplete, to validate a design model, (ii) results with adequate information content showed a significant deviation from the RCSM, and (iii) that the RCSM may lead to a non-conservative design. For members in tension, results fit well with the RCSM, while significant deviations were found for members in compression. Members in bending show very large scatter. It is therefore recommended that the existing design approach inEurocode 5 should be revised in order to include the results of advanced calculations and appropriate tests.

Place, publisher, year, edition, pages
2014. Vol. 68, p. 81-99
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-6618DOI: 10.1016/j.firesaf.2014.05.006Scopus ID: 2-s2.0-84905110678Local ID: 16467OAI: oai:DiVA.org:ri-6618DiVA, id: diva2:964457
Available from: 2016-09-08 Created: 2016-09-08 Last updated: 2023-05-08Bibliographically approved

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