Chapters authored
Lumber-Based Mass Timber Products in Construction By Meng Gong
This chapter provides information related to commonly used wood construction methods (i.e., light-frame, post-and-beam, and mass timber) and mass timber products. It briefly discusses the manufacturing of four major lumber-based mass timber products (i.e., glue-laminated timber, nail-laminated timber, dowel-laminated timber, and cross-laminated timber), and their available dimensions and typical applications. The discussion also addresses primary lumber products, such as dimension lumber, machine stress-rated lumber, and finger-joined lumber, which are the building blocks from which mass timber products are manufactured. Advantages of using wood in construction are illustrated by examples largely from North American practices. The life cycle assessment concept is also introduced.
Part of the book: Timber Buildings and Sustainability
Strand-Based Engineered Wood Products in Construction By Zizhen Gao and Meng Gong
Strand-based engineered wood products (EWPs) have been widely employed in construction since their emergence in the 1970s. The use of strand-based EWPs can significantly increase the yield of forest resources by utilizing submarginal logs and branches. In this chapter, the strand-based EWPs, including oriented strand board (OSB), laminated strand lumber (LSL), and oriented strand lumber (OSL), are discussed in terms of their fabrication, properties, and uses in construction. Specifically, the manufacturing requirements for elements (i.e., strands), such as dimension, density, and moisture content, are introduced. The major manufacturing processes, such as selection of adhesives, pressing parameters, and thickness control, are also discussed. In addition, the engineering properties and uses of these EWPs are illustrated. Furthermore, some innovative applications of these products, such as hybrid cross-laminated timber, are presented in this chapter.
Part of the book: Engineered Wood Products for Construction
Wood and Engineered Wood Products: Stress and Deformation By Meng Gong
Wood, as a natural, sustainable, and renewable bio-composite material, has a long history of serving humanity as construction materials. With the advance in technologies, many modern engineered wood products (EWPs) have been invented, produced, and used in construction, such as laminated veneer lumber, oriented strand board, and cross laminated timber. This chapter first introduces the classification, rationales, and pros and cons of EWPs. Secondly, it discusses the stress-related topics, including growth stresses in living trees, the evolution of wood strength from the molecular level to the actual design implementation. Thirdly, this chapter discusses moisture-induced deformation with examples. Finally, it mentions the benefits of using EWPs and their market shares.
Part of the book: Engineered Wood Products for Construction
Veneer-Based Engineered Wood Products in Construction By Elena Vladimirova and Meng Gong
Veneer-based engineered wood products (EWPs) are widely used in construction. Veneer-based EWPs are made of thin veneer sheets or veneer strands with adhesives, mainly including plywood, laminated veneer lumber (LVL), and parallel strand lumber (PSL). This chapter first discusses veneer-based EWPs in terms of their manufacturing, properties, and applications. Secondly, it introduces how veneer sheets or veneer strands intersect with each other in these products, providing additional strength and stable dimensions. Thirdly, this chapter overviews the effects of element dimensions, basic structure, veneer grade, adhesive type, and processing parameters on the properties of these products. Finally, it illustrates the uses of veneer-based EWPs through examples with a focus on their construction applications.
Part of the book: Engineered Wood Products for Construction
