Dynamic Stress Amplification Caused by Sudden Failure of Tension Members in Steel Truss Bridges
Publication: Journal of Structural Engineering
Volume 137, Issue 8
Abstract
The property of dynamic stress amplification resulting from the sudden failure of a tension member in a truss bridge is investigated by a precise dynamic response analysis. The primary sources of the dynamic stress amplification are from two types of impacts. The primary impact is attributable to longitudinal strain wave propagation from a failure point. The secondary impact is a result of the dynamic transition of equilibrium from a prefailure to a postfailure state. However, the effect of the primary impact is so small that it can be ignored in evaluating the impact coefficients used for the structural redundancy analysis. The impact coefficients for critical members in a structure take almost a constant value that ranges from 1.4 to 1.8, for which 5% structural damping is assumed, following the single degree of freedom model employed to evaluate the existing impact coefficient of 1.854. To avoid a cumbersome dynamic response analysis, the root mean square mode combination method is applied to calculate approximately the impact coefficients. The impact coefficients so calculated are moderately accurate for practical purposes.
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References
ABAQUS Version 6.5 [Computer software]. Simulia/Dassault Systèmes, Vélizy-Villacoublay Cedex, France.
Chen, W. F., and Duan, L. (1999). Bridge engineering handbook, CRC, Boca Raton, FL.
Chen, W. F., Goto, Y., and Liew, J. Y. R. (1995). Stability design of semi-rigid frames, Wiley, New York.
Cowper, G. R., and Symonds, P. S. (1957). “Strain hardening and strain rate effect in the impact loading of cantilever beams.” Div. of Applied Mathematics Rep. No. 28, Brown Univ., Providence, RI.
Goto, Y., and Kawanishi, N. (2004). “Analysis to predict long-term mechanical performance of steel structures with histories of corrosion and repair.” J. Struct. Eng., 130(10), 1578–1585.
Hilber, H. M., Hughes, T. J. R., and Taylor, R. L. (1978). “Collocation, dissipation and overshoot for time integration schemes in structural dynamics.” Earthquake Eng. Struct. Dyn., 6(1), 99–117.
Japan Road Association. (2002). Specification for road bridges and commentaries: I. Steel bridges, Tokyo.
Jennings, R. L., and Newmark, N. M. (1960). “Elastic response of multi-story shear beam type structures subjected to strong ground motion.” Proc., 2nd World Conf. on Earthquake Engineering, Science Council of Japan, Tokyo, 699–717.
URS. (2006). “Fatigue evaluation and redundancy analysis.” Bridge No. 9340, I-35W over Mississippi River, Draft Rep. Prepared for Minnesota Dept. of Transportation, Minneapolis.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 137 • Issue 8 • August 2011
Pages: 850 - 861
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Feb 4, 2010
Accepted: Oct 18, 2010
Published online: Oct 21, 2010
Published in print: Aug 1, 2011
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