Author: R. C. Moody
Publisher:
Published: 1974
Total Pages: 42
ISBN-13:
DOWNLOAD EBOOK →A theoretical concept was developed and experimentally evaluated permitting combination of different species of wood within the same glued-laminated beams. Twenty large beams manufactured with visually graded Douglas-fir outer laminations and lodgepole pine inner laminations all attained desired bending strength and stiffness levels. Results indicate that substantial amounts of lower strength and stiffness lodgepole pine can be used in the inner laminations of Douglas-fir glued-laminated beams with little detectable effect on their bending strength and stiffness. Design criteria presented can be used to determine the extent to which such a lower strength species might be used and the effect on beam properties.
Author: Forest Products Laboratory (U.S.)
Publisher:
Published: 1973
Total Pages: 540
ISBN-13:
DOWNLOAD EBOOK →Author: United States. Superintendent of Documents
Publisher:
Published: 1977
Total Pages: 1092
ISBN-13:
DOWNLOAD EBOOK →February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index