Stressed Skin Panel Deflections And Stresses

To achieve full utilization of each harvested tree, interest centers on use of all of the tree components. The objective of the study is to determine the influence of the morphological characteristics of pulp fiber from 12 western U.S. softwood species, representative of a wide range of fiber. The effect of the morphology of the wood pulp fiber as distinguished from that of the wood fiber is emphasized because differences in performance of fiber-based products are traced to the pulp fiber. Interrelationships of fiber morphology and pulp sheet properties are discussed. The results indicate that it is not possible to fully characterize the performance of a pulp by a single morphological characteristic and that the morphological characteristics significantly influence strength properties of sheets.

The follow-up to the 2000 Golden Pen Award-winning Structural Design for the Stage, this second edition provides the theater technician with a foundation in structural design, allowing an intuitive understanding of "why sets stand up." It introduces the basics of statics and the study of the strength of materials as they apply to typical scenery, emphasizing conservative approaches to real world examples. This is an invaluable reference for any serious theatre technician throughout their career, from the initial study of the fundamental concepts, to the day-to-day use of the techniques and reference materials. Now in hardcover, with nearly 200 new pages of content, it has been completely revised and updated to reflect the latest recommended practices of the lumber and steel industries, while also including aluminum design for the first time.

A stressed skin panel is an engineered, prebuilt component consisting of a frame of dimensional lumber, to which top and bottom flanges of plywood or other panel material are structurally glued. Flanges are traditionally made of Douglas fir, but if made of Alberta spruce plywood and oriented strandboard(OSB), could provide new markets for Alberta. Twenty-four stressed skin panels were designed, constructed and tested: 6 with flanges of Douglas-fir plywood, 6 with flanges of Alberta spruce plywood, and 12 with flanges of OSB. Half were tested to verify that established engineering design theories hold for stressed skin panels made with OSB and spruce plywood flanges, and the other half were tested to study the effect of sustained loading (1000 day duration) on stressed skin panels made with OSB and spruce plywood flanges.

"Summarizes information on wood as an engineering material. Properties of wood and wood-base products of particular concern to the architect and engineer are presented, along with discussions of designing with wood and some pertinent uses of wood."--Page ii.