Abstract
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 language | English |
---|---|
Journal | Holz als Roh- und Werkstoff |
Volume | 56 |
Issue number | 5 |
Pages (from-to) | 307-317 |
Publication status | Published - 1998 |