Different types of bends and joints constructed of 0.75 inch thick Southern Pine were exposed to either 212 ° , 320° or 473°F for predetermined lengths of time. The strength and rigidity of each bend and joint were then measured at room temperature. The data generated indicate the effects of temperature, exposure time, grain orientation, bend geometry, and joint configuration on the strength, rigidity, and maximum deflection.
Get full access to this article
View all access options for this article.
References
1.
Do, M.H. and Springer, G.S., "Mass Loss of and Temperature Distribution in Southern Pine and Douglas Fir in the Range 100 to 800°C," Journal of Fire Sciences, Vol. 1, pp 271-284 (1983).
2.
Do, M.H. and Springer, G.S., "Model for Predicting Changes in the Strengths and Moduli of Timber Exposed to Elevated Temperatures," Journal of Fire Sciences, Vol. 2, pp. 285-296 (1983).
3.
Do, M.H. and Springer, G.S., "Failure Time of Loaded Wooden Beams During Fire," Journal of Fire Sciences, Vol. 1, pp. 297-303 (1983).
4.
Kollmann, F. and Schulz, G.V. , "Mechanical Characteristics of Various Moist Woods within Temperature Gradients from—200° to + 200°C," translation, U.S. National Advisory Commission on Aeronautical Technology Memo No. 984 (1941).
5.
Maclean, J.D., "Effect of Heat on the Properties and Serviceability of Wood," U.S. Forest Products Laboratory Report 1471 ( 1945).
6.
Wood Handbook, USDA, U.S. Forest Products Laboratory, Forest Service Agriculture Handbook, No. 72 (1955).
7.
Schaffer, E.L. , "Effect of Pyrolytic Temperature on Longitudinal Strength of Dry Douglas-Fir," J. of Testing and Evaluation, JTEVA, Vol. 1, No. 4, pp. 319-329 (1973).
