Abstract
Abstract A proper assessment of the properties of timber members is dependent upon the capacity for acquiring sufficient information onsite. A large part of this depends on the ability to identify wood species which is consequently used for selecting and applying a suitable visual strength grading standard. However, given the wide variability associated with the mechanical properties, normally above 20%, and the possible ageing effects due to load and moisture history, visual grade information should be complemented by information from onsite tests. This paper presents the results of a methodology for assessing old timber members where all information collected from wood identification and semi-destructive testing (wood coring and tensile tests) are combined and analysed. The results stress the importance that the combination of information from different sources can provide in terms of a safer and more reliable assessment of timber members in service.
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