Reliability of Nonlinear Wood Composites in Bending
Publication: Journal of Structural Engineering
Volume 117, Issue 6
Abstract
Existing techniques of structural analysis for nonlinear composite wood systems under bending/compression loads are combined with probability‐based concepts in evaluating typical wall types of current construction. Material behavior is bilinear: nailed joints exceed the proportional limit first, followed by framing members. Stochastic variables include Weibull distributions for nonlinear moduli of elasticity for framing and parameters of normal and type 1 distributions for wind load. The analysis shows that the walls behave nonlinearly long before final collapse. The walls prove highly reliable, with a probability of failure between 0.000006 and 0.00144. The probability of failure is increased when accounting for the presence of axial load and composite action in the analysis, is unchanged when accounting for errors in lumber grading, and is strongly affected by changes in the variability of the framing modulus of rupture and wind velocity.
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References
1.
Amana, E. J., and Booth, L. G. (1967). “Theoretical and experimental studies on nailed and glued plywood stress‐skin components: Part I. Theoretical study.” J. Institute Wood Sci., 4(1), 43–69.
2.
Ang, H.‐S. A., and Tang, W. H. (1984). Probability concepts in engineering planning and design, Vol. 2, John Wiley and Sons, Inc., New York, N.Y., 353–356.
3.
Bonnicksen, L. W., and Suddarth, S. K. (1966). “Structural reliability analysis of a wood load‐sharing system.” J. Mater., 1(3), 491–508.
4.
Bulleit, W. M. (1986). “Reliability model for wood structural systems.” J. Struct. Engrg., ASCE, 112(5), 1125–1146.
5.
Criswell, M. E. (1979). “Response of realistic wood‐joist floors.” Proc. Specialty Conf. on Probabilistic Mech. and Struct. Reliability, ASCE, 156–160.
6.
Ellingwood, B., Galambos, T. V., McGregor, J. G., and Cornell, C. A. (1980). “Development of a probability based load criterion for American National Standard A58.” NBS Special Publication 577, U.S. Dept. of Commerce, Nat. Bureau of Standards, Washington, D.C.
7.
Evans, J. W., and Green, D. W. (1987). Mechanical properties of visually graded lumber, Vols. 1–8, U.S. Forest Products Lab., Madison, Wis.
8.
Foschi, R. O. (1979). “A discussion on the application of the safety index concept to wood structures.” Can. J. Civ. Engrg., 6(1), 51–58.
9.
Foschi, R. (1984). “Reliability of wood structural systems.” J. Struct. Engrg., ASCE, 110(12), 2995–3013.
10.
Goodman, J. R. (1984). “Reliability‐based design for wood structures.” Proc. Workshop on Struct. Wood Res., ASCE, 155–171.
11.
Heimeshoff, B. (1987). “Zur Berechnung von Biegeträgern aus nachgiebig mitein‐ander verbundenen Querschnittsteilen im Ingenieurholzbau.” Holz Roh‐Werkst., 45, 237–241.
12.
Loferski, R. J., and Polensek, A. (1982). “Predicting inelastic stiffness moduli of sheathing to stud nail joints.” Wood Sci., 15(1), 39–43.
13.
Minimum design loads for buildings and other structures ANSI A58.1. (1982). American National Standards Institute, New York, N.Y.
14.
Polensek, A. (1976a). “Nonlinear behavior of nailed wood stud walls under bending and compression loads.” Proc. 2nd Int. Conf. on Mech. Behavior of Materials, 1948–1952.
15.
Polensek, A. (1976b). “Properties of components and joints for rational design procedure of wood‐stud walls.” Wood Sci., 9(1), 8–20.
16.
Polensek, A. (1982). “Effect of construction variables on performance of wood‐stud walls.” Forest Products J., 32(5), 37–41.
17.
Polensek, A., and Gromala, D. S. (1984). “Probability distributions for wood walls in bending.” J. Struct. Engrg., ASCE, 110(3), 619–636.
18.
Simiu, E., Changery, M. J., and Filliben, J. J. (1979). “Extreme wind speeds at 129 stations in the contiguous United States.” NBS Series 118, U.S. Dept. of Commerce, Nat. Bureau of Standards, Washington, D.C.
19.
Taylor, S. E., and Bender, D. A. (1988). “Simulating correlated lumber properties using a modified multivariate normal approach.” Trans., ASAE, 31(1), 182–186.
20.
Taylor, S. E., and Bender, D. A. (1989). “A method for simulating multiple correlated lumber properties.” Forest Products J., 39(7/8), 71–74.
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Copyright © 1991 ASCE.
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Published online: Jun 1, 1991
Published in print: Jun 1991
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