Current advances in timber engineering with the use of at longer spans necessitate high performance joints. Glued-in rods exhibit axial load capacity and stiffness are suitable for such applications. FRP can increase their durability fire but ways to produce progressive failure mechanisms necessary enhance resilience. In this study CFRP GFRP glued block laminated epoxy investigated under both m...

Abstract Damage is a common condition in ancient timber structures, whose influence on the mechanical properties of structures cannot be ignored. To study damaged hoop head mortise-tenon joint, four specimens with shrinkage gauge, including one intact joint specimen and three artificial simulated specimens, are designed, fabricated this paper by regarding global damage degree column axial force...

A sample of 78 Pinus radiata D. Don logs was measured and sawn to maximise yields of 100 x 50-mm and 200 x 50-mm timber. The average bending strength and stiffness of the timber were found to depend on the basic density of the log but the lower fifth-percentile strength was more dependent on branch index. For the 28-year-old stand sampled, logs with a low branch index yielded 100 x 50-mm timber...

Eco-certified forestry (ECF) is defined as forest management that incorporates ecological concerns into commercial timber production. In this paper, we link the adoption of ECF practices to shifts in the timber supply function. We use a spatially disaggregated model of southeastern US timber supply to simulate the empirical relationship between variations in the price premium offered for timber...

Forest-based natural catastrophes are regular features of timber production in the United States, especially from hurricanes, fires, and insect and disease outbreaks. These catastrophes affect timber prices and result in economic transfers. We develop a model of timber market dynamics after such a catastrophe that shows how timber salvage affects the welfare of different market groups and quant...

Timber supply modeling is a means of formalizing the production behavior of heterogeneous landowners managing a wide variety of forest types and vintages within a region. The critical challenge of timber supply modeling is constructing theoretically valid and empirically practical aggregate descriptions of harvest behavior. Understanding timber supply is essential for assessing tradeoffs betwee...

I ABSTRACT.-The South can increase forest productivity on industrial and nonindustrial private forest (NIPF) lands. As timber markets have improved and timber prices have increased, returns from intensive management are more profitable. The interaction of timber markets, inventory, and prices are analyzed in new southern timber supply models sponsored by the Southern Forest Resource Assessment ...

Abstract This article aims to investigate the contact characteristics of mortise and tenon (M&T) joints in traditional timber structures. In particular, normal embedded compressive between surfaces M&T joint was investigated. Based on basic theory tenon, a elasto-plastic model, which can reflect real behavior wooden structures, proposed. Coulomb friction utilized describe tangential sli...

Abstract The use of glued finger joint in green wood, directly from the sawing process, would open possibility to obtain timber small-sized achieving an efficient original raw material. gluing finger-jointed with moisture content above fibre saturation point, may improve efficiency and manufacturing process glulam or joinery. This be especially beneficial for a hardwood such as Eucalyptus globu...

A working definition of non-timber value is the difference between the revenues attainable by implementing an infinite horizon timber revenue maximizing cutting rule, and the value of the observed harvest. This non-timber value was estimated for the stands of the Forest Inventory Analysis data in the maple-beech-birch type in Wisconsin. Non-timber values averaged 23 $/ha&r, and were higher than...