DOL behaviour of end-notched beams

P.J. Gustafsson, Preben Hoffmeyer, G. Valentin

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    The long-term loading strength of end-notched beams made of glulam and LVL was tested. The beams were of various sizes, with and without a moisture sealing at the notch. Tests were conducted in open shelter climates, and at constant and cyclic relative humidity. The short-term strength was tested after conditioning in the various climates. Both the short-term and long-term strength of beams without moisture sealing was significantly affected by transcient moisture conditions, e.g. the moisture variations due to change of the time of the year. The strength was only slightly affected by the magnitude of the humidity, if this was kept constant. Duration of load strength reduction factors were evaluated for six months of loading. Average reduction in ultimate failure strength ranged from 0.68 for small LVL beams without moisture sealing tested during spring and summer to 0.81 for large glulam beams with a moisture sealing at the notch
    Original languageEnglish
    JournalHolz als Roh- und Werkstoff
    Issue number5
    Pages (from-to)307-317
    Publication statusPublished - 1998

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