Structural Reliability of Spanish Softwoods. A New Answer for an Old Problem

Miguel Nevado

doi:10.4028/www.scientific.net/AMR.778.1056

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RILEM TC "Reinforcement of Timber Elements in Existing Structures"
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Recommendations for Design in Preserving Historical Buildings with Wooden Structures’ Roofs
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 778Structural Reliability of Spanish Softwoods. A New...

Structural Reliability of Spanish Softwoods. A New Answer for an Old Problem

Abstract:

A group of databases making a total of ca. 9.000 beams from coniferous trees from Spain, tested according EN 384 and visually graded according Spanish standards were analyzed. The main goal was to reach a detailed comprehension about the true state of nature of the three reference structural material properties (density, MOR and MOE), in the conditions it reaches the real market. Provided the existing beams (reasonably) came from the same populations, the use of reliability updating technics is a meaningful approach to the problem of conjecturing its resistant behavior. Distribution parameters for the target species have been proposed. Spanish softwood (with the exception of p. radiata) has proved to be extremely dense and quite stiff related to its resistance, compared with usual North American, Central or North European coniferous trees. Hence, the basic information of these last species should not be used when dealing with Spanish historical timbers, as it leads to rather uneconomical conjectures (as deformation and joints use to be design governing factors). Also therere significant differences related to the current Probabilistic Model Code suggestion on the topic (as the Code itself warns of).

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Periodical:

Advanced Materials Research (Volume 778)

Pages:

1056-1063

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.778.1056

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Online since:

September 2013

Authors:

Miguel Nevado

Keywords:

Bayesian Statistics, Probabilistic Model Code, Structural Reliability Updating

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References

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