SYMPOSIA PAPER Published: 01 January 1979

Structural Properties of Timber Pile


Results of test programs with short pile sections and small clear specimens are reviewed to evaluate the influence of imperfections and preservative treatment on the strength properties of timber piles. Reduction factors developed from this review, available information on natural wood strength variations, and available information on the influence of load duration are used to evaluate the structural capacity of embedded timber piles under axial loading. Indicated allowable axial unit stresses for treated timber piles range from 3.8 MPa (550 psi) to 6.4 MPa (925 psi), depending on the extent of knots and treatment conditioning that are permitted in current (1978) timber pile standards.

Author Information

Armstrong, RM
Raymond Technical Facilities, Inc., Houston, Tex.
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Developed by Committee: D18
Pages: 118–152
DOI: 10.1520/STP33726S
ISBN-EB: 978-0-8031-4740-9
ISBN-13: 978-0-8031-0291-0