Download or read book Improved Use of Ponderosa Pine in Glulam Beams written by Roland Hernandez and published by . This book was released on 2005 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the United States, almost 300 million acres of forests are severely overcrowded with small-diameter, densely stocked trees. These forests need to be thinned to improve their health and reduce the risk of catastrophic wildfire. However, thinning is an expensive task, costing from $200 to $1,500 per acre. Traditionally, there has not been a market for this material once it has been thinned. Uses for small-diameter wood must be found and markets for the products created in order to offset the cost of thinning. For several years, the Forest Products Laboratory (FPL) has conducted cooperative studies with local communities and industry to improve the use of wood from small-diameter trees. One of the most common species in these stands is ponderosa pine. Preliminary testing on ponderosa pine lumber indicates that if mechanical grading technology is applied, this material could be used in higher valued structural applications such as glued-laminated timber (glulam).

Download or read book Improved Utilization of Small Diameter Ponderosa Pine in Glulam Laminated Timber written by United States Department of Agricutlure and published by CreateSpace. This book was released on 2015-02-14 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study involved the evaluation of ponderosa pine glulam made from lumber that was sawn from a small-diameter timber resource. Two different glulam beam depths were evaluated: 8 and 13 laminations. A comprehensive glulam test program was conducted to evaluate edgewise and flatwise bending, shear, and tensile strength. Beam deflection was measured and a variety of glulam MOE values were determined. The calculated design values for various mechanical properties of this new ponderosa pine glulam beam combination were compared to the published design values of the L3 glulam combination. Using mechanically graded lumber in the glulam combination resulted in a structural member that efficiently utilized this small-diameter ponderosa pine resource. The calculated design values of this new glulam combination are a significant improvement over the published design values of the all ponderosa pine L3-grade combination that is currently available in the standards.

Download or read book Improved Utilization of Small diameter Ponderosa Pine in Glued laminated Timber written by and published by . This book was released on 2005 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Improved Utilization of Small diameter Ponderosa Pine in Glued laminated Timber written by Roland Hernandez and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Improved Performance of Southern Pine Structural Glued laminated Timber written by Roland Hernandez and published by . This book was released on 1992 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Improved Utilization of Lumber in Glued Laminated Beams written by Russell Charles Moody and published by . This book was released on 1977 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pocket Guide to the Improved Grading System for Ponderosa Pine and Sugar Pine Saw Logs in Trees written by Edward M. Gaines and published by . This book was released on 1964 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pocket Guide to the Improved Grading System for Ponderosa Pine and Sugar Pine Saw Logs in Trees written by Pacific Northwest Forest and Range Experiment Station (Portland, Or.) and published by . This book was released on 1969 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forest Products Laboratory Research Program on Small diameter Material written by and published by . This book was released on 2000 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ponderosa Pine Ecosystems Restoration and Conservation written by and published by . This book was released on 2001 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Paper FPL RP written by and published by . This book was released on 1986 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Improved Utilization of Lumber in Glued Laminated Beams written by Russell Charles Moody and published by . This book was released on 1977 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evaluation of 120 glued laminated (glulam) beams provided criteria for improved utilization of lumber in such beams. Objectives were: (1) to determine if lumber grade can be somewhat reduced on the compression side of beams without significantly changing design strength; (2) to establish analytic procedures for incorporating lumber having had its modulus of elasticity (e) determined (E-rated lumber) into glulam beams; and (3) to determine the effect on beam properties of using lumber with limited wane. The procedures developed will provide those preparing specifications a wider raw material base for glulam timber, resulting in more efficient use of our timber resource.

Download or read book Pocket Guide to the Improved Grading System for Ponderosa Pine and Sugar Pine Saw Logs in Trees written by Edward McCulloch Gaines and published by . This book was released on 1964 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book McGraw Hill Yearbook of Science Technology 2004 written by and published by . This book was released on 2004 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pocket Guide to the Improved Grading System for Ponderosa Pine and Sugar Pine Saw Logs in Trees written by and published by . This book was released on 1964 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wood Utilization written by and published by Nova Publishers. This book was released on 2007 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wood utilisation research and product development spans a broad spectrum of activities. These activities fall into five categories: harvesting, wood properties, manufacturing and processing, products and testing, and economics and marketing. This book deals with the US federal input in this field.

Download or read book National Conference on Wood Transportation Structures written by and published by . This book was released on 1996 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: