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 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 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 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 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 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 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 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 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Products from Low grade Ponderosa Pine Timber written by Roland L. Barger 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 Maximum Cutting Yields for 6 4 Ponderosa Pine Shop Lumber written by Kent A. McDonald and published by . This book was released on 1983 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Department of the Interior and Related Agencies Appropriations for Fiscal Year 1999 written by United States. Congress. Senate. Committee on Appropriations. Subcommittee on the Department of the Interior and Related Agencies and published by . This book was released on 1999 with total page 608 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 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 Department of the Interior and Related Agencies Appropriations for 1999 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Department of the Interior and Related Agencies and published by . This book was released on 1998 with total page 1052 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Department of the Interior and Related Agencies Appropriations for 1999 Justification of the budget estimates United States Forest Service Department of Energy written by United States. Congress. House. Committee on Appropriations. Subcommittee on Department of the Interior and Related Agencies and published by . This book was released on 1998 with total page 1022 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Efficient Utilization of Red Maple Lumber in Glued laminated Timber Beams written by John J. Janowiak and published by . This book was released on 1995 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: The feasibility of utilizing cant-sawn hardwood lumber, which would not usually be desired for furniture manufacture, was studied for the manufacture of structural glued-laminated (glulam) timber. Two red maple beam combinations were evaluated: (1) a glulam combination designed with E-rated lumber in 25 percent of the outer laminations (top and bottom) and No. 3 grade lumber in 50 percent of the center laminations and (2) a wide-width glulam combination with laminations made from nominal 2- by 4- and 2- by 6-in. No. 2 grade lumber laid edge-to-edge having staggered end joints (termed 2 by 4/2 by 6 glulam combination). Test results of 42 red maple glulam beams showed that it was feasible to develop structural glulam timber from cant-sawn lumber. The glulam combinations made from E-rated lumber exceeded the target design bending stress of 2,400 lb/in2 and met the target modulus of elasticity (MOE) of 1.8 Ã 106 lb/in2. In addition, the 2 by 4/2 by 6 glulam combination exceeded published design stresses for vertically laminated bending strength, MOE in both the horizontally and vertically laminated orientations, and horizontal shear stress in the vertically laminated orientation. Based on the results of the 2 by 4/2 by 6 glulam combination, it was determined that edge gluing the laminations to form wide-width lumber is not required to achieve targeted strength and stiffness levels. Data analysis showed that ASTM D3737 procedures developed for softwood species accurately predict beam stiffness and provide conservative bending and horizontal shear strength estimates for red maple glulam beams. Also, it was shown that results from ASTM D143 shear-block tests could be used to accurately predict horizontal shear strength of 2 by 4 and 2 by 6 red maple glulam beams.
Download or read book USDA Forest Service Resource Bulletin RM written by and published by . This book was released on 1980 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dividends from Wood Research written by and published by . This book was released on 2000-07 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
