Experimental testing of load capacity of angle brackets for anchoring of solid wooden panels

摘要

Different angle brackets for anchoring solid wooden panels were tested to learn about theirudresponse and basic mechanical properties on the acting load in two perpendicular directions.udNamely, previous tests showed two distinct cases of panel deformation. In one case the paneludmainly rotates around its compressed corner. In the other case the panel slips along foundationudand deforms into parallelogram shape. Based on this knowledge, the tests were designed toudsimulate these two cases of deformation. The two tests were named »up-lift test« and »slipudtest«. The tests were carried out on cross laminated and unidirectional laminated woodenudpanels segments anchored by BMF and WÜRTH angle brackets. To obtain reliableudmechanical characteristics three different loading protocols were applied. Loading protocolsudto simulate realistic loads on angle brackets were monotonous, according to standard ENud26891, and cyclic or semi-cyclic according to standard prEN 12512. The tests showed that theudlength of nails has greater influence on the results that their number. The test results show thatudcross laminated panel has better possibility for strong fixation than unidirectional laminatedudpanel.