The Brazilian standard NBR 7190-1997 provides guidelines for embedment strength determination on timber structures for metal dowels fastenings using laboratory tests or, in their absence, prescribes procedures to estimate the embedment strength. This standard assumes that the embedment strength parallel to the grain can be considered to be equivalent to the compressive strength parallel to the grain. The aim of this research work is to analyse the embedment strength parallel to grain and the compression strength parallel to grain for Pinus oocarpa (Pinus oocarpa Shiede), cumaru (Dipterix odorata) and pínus taeda (Pinus taeda L.) wood species. For comparing the strengths, the hypothesis the statistical T test was used. The results indicated that there is no equivalence between the strength values only for the pínus oocarpa wood specie, showing the importance of determining the embedding strength through standard laboratory tests.
Wood; Strength; Embedment; Compression; Timber structures
