Risk Consistent Estimate of Heat‐Straightening Applications. I: Plates
Publication: Journal of Structural Engineering
Volume 118, Issue 12
Abstract
Addressing the need to estimate the number of vec heat applications required to repair a specified degree of damage in heat‐straightening operations, an experimental program using steel flat plates under controlled conditions in the laboratory was devised and executed. Recognizing the random nature of the plastic rotation process resulting from heat‐straightcning repairs, simple engineering predictors based on the theory of reliability arc derived consistent with the uniform value of a preselected target risk index. Two different forms of this predictor arc formulated, based on whether or not the principal statistics of the process for the subject plate are known. These models are theoretically verified by a separate model using spectral analysis in the frequency domain. Excellent agreement was obtained among the estimates by the different formulations.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Avent, R. R. (1989). “Heat‐straightening of steel: fact and fable.” J. Struct. Engrg., ASCE, 115(11), 2773–2793.
2.
Clough, R. W., and Penzien, J. (1975). Dynamics of structures, Part IV: Randomvibrations. McGraw‐Hill, New York, N.Y.
3.
Crandall, S. H., and Mark, W. D. (1963). Random vibrations in mechanical systems. Academic Press, New York, N.Y.
4.
de Béjar, L. A., Robinson, P. F., and Avent, R. R. (1992). “Risk consistent estimate of heat‐straightening applications. II: Beams.” J. Struct. Engrg., ASCE, 118(12), 3410–3426.
5.
Hasofer, A. M., and Lind, N. C. (1974). “Exact and invariant second‐moment code format.” J. Engrg. Mech. Div., ASCE, 100(1), 111–121.
6.
Holt, J. E. (1955a). “Flame straightening: a friend in need.” Welding Engr., 40(10), 44–46.
7.
Holt, J. E. (1955b). “Flame straightening: a friend in need.” Welding Engr., 40(12), 30–31.
8.
Holt, R. E. (1965). “Flame straightening basics.” Welding Engr., 50(9), 49–53.
9.
Melchers, R. E. (1987). Structural reliability: analysis and prediction. John Wiley and Sons, New York, N.Y.
10.
Newland, D. E. (1984). An introduction to random vibrations and spectral analysis. Longman House, Inc., New York, N.Y.
11.
Nicholls, J. I., and Weerth, D. E. (1972). “Investigation of triangular heats applied to mild steel plates.” Engrg. J., 9(4), 137–141.
12.
Robinson, P. F. (1991). “Behavioral characteristics of damaged steel repaired by heat straightening,” PhD thesis, Louisiana State Univ., Baton Rouge, La.
13.
Roeder, C. W. (1985). “Use of thermal stress for seismic damage repair.” Final Report on NSF Grant CEE‐82‐05260. Univ. of Washington, Seattle, Wash.
14.
Roeder, C. W. (1986). “Experimental study of heat induced deformation.” J. Struct. Engrg., ASCE, 112(10), 2247–2262.
15.
Shanafelt, G. O., and Horn, W. G. (1984). “Guidelines for evaluation and repair of damaged steel bridge members.” NCHRP Report No. 271, Transp. Res. Board, Nat. Res. Council, Washington, D.C.
16.
Yang, C. Y. (1986). Random vibration of structures. Wiley‐Interscience, New York, N.Y.
Information & Authors
Information
Published In
Copyright
Copyright © 1992 ASCE.
History
Published online: Dec 1, 1992
Published in print: Dec 1992
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.