Predicting Creep of Nailed Lumber‐to‐Plywood Joints
Publication: Journal of Engineering Mechanics
Volume 115, Issue 10
Abstract
Data on creep behavior of nailed joints between lumber and sheathing are essential to improve the design of light‐frame wood buildings. Two theoretical models were developed to predict creep of joints under variable loads from test data on creep under constant loads. The models incorporated the strain‐hardening principle and the modified superposition principle; the latter was further modified to include plastic creep in nailed joints. Tests were conducted to develop specific models for nailed joints between Douglas‐fir lumber and plywood. The experimental data for three constant‐load functions were used to formulate the specific models, and the data for four stepwise load functions were used to assess the accuracy of those models. Predicted and experimental data agreed closely for all solutions, but the simplest and most accurate predictions were based on the modified superposition principle. Thus, the models can provide accurate estimates of stiffness loss under long‐term loads in nailed wood components of light‐frame wood buildings.
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References
1.
Bowles, J. E. (1977). Foundation analysis and design. McGraw‐Hill, New York, N.Y.
2.
Cho, U. W., and Findley, W. N. (1980). “Creep and plastic strains of 304 stainless steel at under step stress changes, considering aging.” J. of Appl. Mech., 49(6), 297–304.
3.
Findley, W. N., and Lai, J. S. (1967). “A modified superposition principle applied to creep of nonlinear viscoelastic material under abrupt changes in state of combined stress.” Trans., Soc. of Rheology, Inc., 11(3), 361–380, John Wiley and Sons, Inc., New York, N.Y.
4.
Findley, W. N., Lai, J. S., and Onaran, K. (1976). Creep and recovery of nonlinear viscoelastic materials. North‐Holland Publishing Co., New York, N.Y.
5.
Gerald, C. F., and Wheatly, P. O. (1984). Applied numerical analysis. Addison‐Wesley Publishing Co., Reading, Mass.
6.
Gerhards, C. C. (1977). “Effect of duration and rate of loading on strength of wood and wood‐based materials.” USDA Forest Service Research Paper FPL‐283, Forest Products Laboratory, Madison, Wis.
7.
Jenkins, J. L., Polensek, A., and Bastendorff, K. M. (1979). “Stiffness of nailed wall joints under short‐ and long‐term lateral loads.” Wood Sci., 11(3), 145–154.
8.
Lai, J. S., and Findley, W. N. (1980). “Creep of 2618 Aluminum under step‐stress changes predicted by a viscous‐viscoelastic model.” J. of Appl. Mech., 47(3), 21–26.
9.
Nolte, K. G., and Findley, W. N. (1971). “Multiple step, nonlinear creep of polyurethane predicted from constant stress creep by three integral representation.” Trans., Soc. of Rheology, Inc., 15(1), 111–133, John Wiley and Sons, Inc., New York, N.Y.
10.
Onaran, K., and Findley, W. N. (1965). “Combined stress‐creep experiments on a nonlinear viscoelastic material to determine the kernel functions for a multiple integral representation of creep.” Trans., Soc. of Rheology, Inc., 9(2), 299–327, John Wiley and Sons, Inc., New York, N.Y.
11.
Pierce, C. B., and Dinwoodie, J. M. (1977). “Creep in chipboard, Part 1, fitting 3‐ and 4‐element response curves to creep data.” J. of Materials Sci., 12(4), 1955–1960.
12.
Pierce, C. B., Dinwoodie, J. M., and Paxton, B. H. (1985). “Creep in chipboard. Part 5; an improved model for prediction of creep deflection.” Wood Sci. and Tech., 19(1), 83–91.
13.
Polensek, A. (1976). “Finite element analysis of wood stud walls.” J. Struct. Div., ASCE, 102(7), 1317–1335.
14.
Polensek, A. (1982). “Creep prediction for nailed joints under constant and increasing loading.” Wood Sci., 15(2), 183–192.
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Copyright © 1989 ASCE.
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Published online: Oct 1, 1989
Published in print: Oct 1989
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