Standard Plans for Timber Bridge Superstructures
Standard Plans for Timber Bridge Superstructures

Author: James P. Wacker

Publisher:

Published: 2001

Total Pages: 58

ISBN-13:

DOWNLOAD EBOOK

These standardized bridge plans are for superstructures consisting of treated timber. Seven superstructure types are included: five longitudinal and two transverse deck systems. Both HS20 and HS25 loadings are included, along with L/360 and L/500 deflection criteria.

Drying Hardwood Lumber
Drying Hardwood Lumber

Author: Joseph Denig

Publisher:

Published: 2000

Total Pages: 148

ISBN-13:

DOWNLOAD EBOOK

Drying Hardwood Lumber focuses on common methods for drying lumber of different thickness, with minimal drying defects, for high quality applications. This manual also includes predrying treatments that, when part of an overall quality-oriented drying system, reduce defects and improve drying quality, especially of oak lumber. Special attention is given to drying white wood, such as hard maple and ash, without sticker shadow or other discoloration. Several special drying methods, such as solar drying, are described, and proper techniques for storing dried lumber are discussed. Suggestions are provided for ways to economize on drying costs by reducing drying time and energy demands when feasible. Each chapter is accompanied by a list of references. Some references are cited in the chapter; others are listed as additional sources of information.

Installation, Care, and Maintenance of Wood Shake and Shingle Roofs
Installation, Care, and Maintenance of Wood Shake and Shingle Roofs

Author:

Publisher:

Published: 2011

Total Pages: 16

ISBN-13:

DOWNLOAD EBOOK

This article gives general guidelines for selection, installation, finishing, and maintenance of wood shake and shingle roofs. The authors have gathered information from a variety of sources: research publications on wood finishing, technical data sheets from paint manufacturers, installation instructions for shake and shingle roofs, and interviews with experts having decades of experience in constructing and inspecting shake and shingle roofs. Where possible, recommendations are based on research results; however, some information is determined from practical experience installing shake and shingle roofs. More detailed information is available from shake and shingle suppliers and the Cedar Shake and Shingle Bureau (CSSB). Note: Installation instructions contained herein are not intended to supercede local building codes.

Dry Kiln Schedules for Commercial Woods - Temperate and Tropical
Dry Kiln Schedules for Commercial Woods - Temperate and Tropical

Author: R. Sidney Boone

Publisher:

Published: 1988

Total Pages: 158

ISBN-13:

DOWNLOAD EBOOK

Contains suggested dry kiln schedules for over 500 commercial woods, both temperate and tropical. The schedules are written out for easy reference and use. The majority of the schedules are from the world literature with emphasis on U.S., Canadian, and British publications. Revised schedules are suggested for western U.S. and Canadian softwoods and U.S. southern pines. Included are conventional and elevated temperatures for U.S. and Canadian species, Latin American woods, Asian and Oceanian woods, African woods, and European woods. Also included are high temperature schedules for U.S. and Canadian species and tables of assembled dry kiln schedules.

Review of Log Sort Yards
Review of Log Sort Yards

Author: John Rusty Dramm

Publisher:

Published: 2002

Total Pages: 48

ISBN-13:

DOWNLOAD EBOOK

This report provides a general overview of current log sort yard operations in the United States, including an extensive literature review and information collected during on-site visits to several operations throughout the nation. Log sort yards provide many services in marketing wood and fiber by concentrating, merchandising, processing, sorting, and adding value to logs. Such operations supply forest products firms with desired raw materials, which helps improve their bottom line by reducing the number of marginal logs processed. Ultimately, sorting logs leads to better use of the available timber resources. Successful log sort yards are self-sufficient and have well-established markets and a steady supply of wood. Log sort yard concepts and analyses described in this report have broad applications.

Formation and Properties of Juvenile Wood in Southern Pines
Formation and Properties of Juvenile Wood in Southern Pines

Author:

Publisher:

Published: 2001

Total Pages: 48

ISBN-13:

DOWNLOAD EBOOK

To satisfy the increasing demand for forest products, much of the future timber supply will be from improved trees grown on managed plantations. This fast-grown resource will tend to be harvested in short age rotations and will contain higher proportions of juvenile wood than that of current harvests. In anticipation of this resource, definitive information is needed on the influence of juvenile wood on lumber properties so that grading rules and the associated allowable design stresses can be modified as needed. This document reports the results of an extensive review of the literature on juvenile wood in southern pines. This report defines and discusses the extent, occurrence, and characteristics of juvenile wood. It reviews the effects that environment and silviculture have on the amount of juvenile wood produced. Finally, the impacts that juvenile wood has on mechanical properties were quantified. The results of this quantification are significant to all producers of fast-grown plantations. Research has clearly shown that juvenile wood will have a detrimental impact on allowable design stresses for visually graded lumber. It is critical that methods are developed to more carefully manage fast-grown plantation wood for its most efficient use. This review should serve as an overall collection of knowledge pertaining to juvenile wood research in southern pines and should help in the decision-making efforts to improve seedling selection techniques and silvicultural practices to maximize the potential for fast-grown plantations of southern pines.