Print Email Facebook Twitter The development of a strength grading system for small diameter roundwood Title The development of a strength grading system for small diameter roundwood Author De Vries, P. Gard, W.F. Faculty Civil Engineering and Geosciences Department Structural and Building Engineering Date 1998-01-01 Abstract Roundwood as a construction material is becoming more and more interesting to users. Using this wood in construction will increase the value of the material and may open new opportunities for construction design. In order to use round wood for this application, suitable connectors andlor joints have to be developed, but before all, the strength characteristics of roundwood must be determined and grading systems should be established. This investigation deals with the determination of the modulus of elasticity and the bending strength. The wood species concerned are Larch, grown in The Netherlands, and Douglas fir, grown in France, with diameters between 80 mm and 140 mm. The modulus of elasticity is determined by static and dynamic test methods. The data were included in a multiple regression model in order to predict the bending strength. The resulting model is compared with models for sawn timber that are nowadays used in practice. Subject roundwoodstrength gradingtesting To reference this document use: http://resolver.tudelft.nl/uuid:fbe2f44d-406d-43cc-a44c-9b0b2c37c81d Publisher Delft University of Technology ISSN 0046-7316 Source HERON, 43 (4), 1998 Part of collection Institutional Repository Document type journal article Rights (c) 1998 The Authors Files PDF DeVries_1998.pdf 1.03 MB Close viewer /islandora/object/uuid:fbe2f44d-406d-43cc-a44c-9b0b2c37c81d/datastream/OBJ/view