Index Catalog // ScholarsArchive@OSU

Characterizing the strength of wood truss joints

Creator:: Gupta, Rakesh, Gebremedhin, Kifle G., and Grigoriu, M. D.
Abstract:: Probability density functions (normal, lognormal, and three-parameter Weibull) were used to characterize strength data for three different types of metal-plate-connected wood truss joints (web at the bottom chord, tension splice, and heel). Modulus of elasticity (MOE) of the lumber used to fabricate the joints was also characterized. A probability-plot technique,...
Resource Type:: Article
Full Text:: . The authors are Rakesh Gupta, Assistant Professor, Dept. of Forest Products, Oregon State University

Avian Species Richness in Relation to Intensive Forest Management Practices in Early Seral Tree Plantations

Creator:: Jones, Jay E., Kroll, Andrew J., Giovanini, Jack, Duke, Steven D., Ellis, Tana M., and Betts, Matthew G.
Abstract:: •Background: Managers of landscapes dedicated to forest commodity production require information about how practices influence biological diversity. Individual species and communities may be threatened if management practices truncate or simplify forest age classes that are essential for reproduction and survival. For instance, the degradation and loss of complex diverse forest...
Resource Type:: Article
Full Text:: Society, Oregon State University, Corvallis, Oregon, United States of America Abstract Background

Use of through-boring to improve CCA or ACZA treatment of refractory Douglas-fir and grand fir

Creator:: Rhatigan, R. G. and Morrell, J. J.
Abstract:: Large quantities of smaller diameter materials are available in the overstocked forests of eastern Oregon and Washington, but the costs of removing these materials and the long distances from markets sharply reduce the potential of this resource. Failure to thin these forests will sharply increase the likelihood of catastrophic wildfires....
Resource Type:: Article
Full Text:: fixation reactions to proceed. After treatment, the posts were trans- ported to Oregon State University

Effect of inspection holes on flexural properties of Douglas-fir utility poles

Creator:: Morrell, Jeffrey J., Sinha, Arijit, Clauson, Milo, and Love, Connie S.
Abstract:: Routine inspection of wood utility poles to detect internal decay involves drilling holes at or about the ground line. While these holes are useful for detecting internal decay, their presence raises concern among engineers about their potential effects on pole flexural properties. The effect of inspection holes on flexural properties...
Resource Type:: Article
Full Text:: Assistant, Dept. of Wood Sci. and Engineering, Oregon State Univ., Corvallis (jeff.morrell@oregonstate.edu

Effects of End Plates on Reducing Checking of Pentachlorophenol-Treated Douglas-Fir Crossarms

Creator:: Love, Connie S. and Morrell, Jeffrey J.
Abstract:: The effect of metal end plates on reducing checking of pentachlorophenol-treated Douglas-fir crossarms was evaluated over 13 wet–dry cycles. Check development was variable over the first three to four cycles, and then steadily increased for both plated and nonplated ends of arms; however, both the number of checks and the...
Resource Type:: Article
Full Text:: showing the wide range in degree of checking observed. FOREST PRODUCTS JOURNAL Vol. 62, No. 2 123

Resistance of Selected Wood-Based Materials to Fungal and Termite Attack in Non–Soil Contact Exposures

Creator:: Morrell, Jeffrey J.
Abstract:: The resistance of three naturally durable heartwood species and a stranded giant bamboo product to fungal and termite (Coptotermes formosanus) attack was evaluated at a test site located near Hilo, Hawaii. Merbau (Intsia bijuga or I. palembanica) and ipe (Tabebuia spp.) were both exceptionally resistant to fungal and termite attack,...
Resource Type:: Article
Full Text:: Contribution 22. Forest Research Laboratory, Oregon State University, Corvallis. 58 pp. Tanikawa, M. 2006

Effect of growth rate on the anatomy, specific gravity, and bending properties of wood from 7-year-old red alder (Alnus rubra)

Creator:: Lei, Hua, Gartner, Barbara L., and Milota, Michael R.
Abstract:: Understanding the association between growth rate and wood properties is of practical importance to maximizing and sustaining wood and fiber production. Anatomical characteristics, specific gravity, and bending properties were determined at breast height for thirty 7-year-old trees with varying growth rates, from a red alder (Alnus rubra Bong.) plantation. Wood...
Resource Type:: Article
Full Text:: , B.L. Gartner,2 and M.R. Milota.Department of Forest Products, Oregon State University, Corvallis, OR

Effects of Postlayup Borate Treatment on Appearance and Flexural Properties of Douglas-Fir Glued Laminated Beams

Creator:: Long, Brady and Morrell, Jeffrey J.
Abstract:: Preservative treatments are required whenever glued laminated beams are exposed outdoors. Treatments can be either water-based systems applied to individual laminations prior to layup or organic solvent–borne systems applied after the beams are fabricated. Water-based systems are not recommended for posttreatment because of concerns over checking and the potential for...
Resource Type:: Article
Full Text:: Professor, Dept. of Wood Sci. and Engineering, Oregon State Univ., Corvallis (longb@onid.orst.edu

Sinuous stem growth in a Douglas-fir (Pseudotsuga menziesii) plantation: growth patterns and wood-quality effects

Creator:: Spicer, R., Gartner, Barbara L., and Darbyshire, R. L.
Abstract:: Stem sinuosity is thought to negatively impact wood quality, but no studies have characterized its vertical and radial effects on wood properties. Here we study wood quality along the entire stem in 25-year-old plantation grown Douglas-fir (Pseudotsuga menziesii var. menziesii (Mirb.) Franco) trees (32 trees total) that had been scored...
Resource Type:: Article
Full Text:: Department, Oregon State University, Corvallis, OR 97331, U.S.A. R.L. Darbyshire.U.S. Forest Service

Potential for Using Essential Oils to Protect Viscoelastic Thermal Compression–Treated Hybrid Poplar

Creator:: Scouse, Adam, Kamke, Frederick A., and Morrell, Jeffrey J.
Abstract:: The potential for using pretreatment with cinnamon leaf oil or juniper foliage oil to improve the durability of viscoelastic thermal compression (VTC)–treated hybrid poplar was explored in a field termite test and a laboratory mold test. The addition of oils prior to VTC processing had variable effects on resistance to...
Resource Type:: Article
Full Text:: and Professor, Dept. of Wood Sci. and Engineering, Oregon State University, Corvallis (fred.kamke

ScholarsArchive@OSU

Characterizing the strength of wood truss joints

Avian Species Richness in Relation to Intensive Forest Management Practices in Early Seral Tree Plantations

Use of through-boring to improve CCA or ACZA treatment of refractory Douglas-fir and grand fir

Effect of inspection holes on flexural properties of Douglas-fir utility poles

Effects of End Plates on Reducing Checking of Pentachlorophenol-Treated Douglas-Fir Crossarms

Resistance of Selected Wood-Based Materials to Fungal and Termite Attack in Non–Soil Contact Exposures

Effect of growth rate on the anatomy, specific gravity, and bending properties of wood from 7-year-old red alder (Alnus rubra)

Effects of Postlayup Borate Treatment on Appearance and Flexural Properties of Douglas-Fir Glued Laminated Beams

Sinuous stem growth in a Douglas-fir (Pseudotsuga menziesii) plantation: growth patterns and wood-quality effects

Potential for Using Essential Oils to Protect Viscoelastic Thermal Compression–Treated Hybrid Poplar

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