Perpendicular to grain bearing strength of timber

摘要

Compressive strength perpendicular to the grain of timber beams is a difficult problem as that notrnonly many different load cases occur in practice but also there is the lack of a reliable model.rnFurthermore, in the US, Europe and Australia/ New Zealand the standardised test methods torndetermine the compressive strength lead to very different strength values. A physical model with arnreference compressive strength as starting point is presented, which claims to account for therndifferences mentioned. The evaluation accounts for a total of 590 radiate pine test results that coverrnfour load cases and two specimen sizes. It is shown that the model presented is able to explain testrnresults previously regarded incompatible. The model offers a consistent and simple way to bridgernthe differences between ASTM, ISO, CEN, Australian and New Zealand test standards. Introducedrnin structural design codes the model enables a more accurate estimate of bearing capacity.