Time-Progressive Dynamic Assessment of Abrupt Cable-Breakage Events on Cable-Stayed Bridges
Publication: Journal of Bridge Engineering
Volume 19, Issue 2
Abstract
Although long-span bridges are usually designed with sufficient structural redundancy, particular concerns arise about the abrupt breakage of bridge cables, which may cause progressive failure such as zipper-like collapse. The time-progressive nonlinear dynamic analysis approach is proposed to investigate the abrupt cable-breakage event of a cable-stayed bridge. Compared with existing studies, the proposed methodology focuses on the simulation of cable loss scenarios in a more realistic manner through incorporating stochastic moving traffic loads, dynamic bridge–vehicle interactions, and associated dynamic initial states of the abrupt cable-breakage event. Several important issues associated with the proposed simulation methodology, such as the finite-element modeling option of cable breakage, different initial states of cable breakage, nonlinearity, and traffic loads, are investigated through a prototype bridge example. Finally, the response envelopes in terms of moments and stresses along the whole bridge are obtained and compared by means of the proposed nonlinear dynamic simulation approach, the static approach, and the pseudodynamic approach with a dynamic amplification factor of 2.0 as recommended by the Post-Tensioning Institute.
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Acknowledgments
This material is based on work supported by the National Science Foundation under Grant No. CMMI-0900253. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the investigators and do not necessarily reflect the views of the National Science Foundation.
References
AASHTO. (2010). AASHTO LRFD bridge design specifications, Washington, DC.
Cai, C. S., and Chen, S. R. (2004). “Framework of vehicle-bridge-wind dynamic analysis.” J. Wind Eng. Ind. Aerodyn., 92(7–8), 579–607.
Cai, J. G., Xu, Y. X., Zhuang, L. P., Feng, J., and Zhang, J. (2012). “Comparison of various procedures for progressive collapse analysis of cable-stayed bridges.” J. Zhejiang Univ.-Sci. A (Appl. Phys. Eng.), 13(5), 323–334.
Chen, S. R., and Cai, C. S. (2007). “Equivalent wheel load approach for slender cable-stayed bridge fatigue assessment under traffic and wind: Feasibility study.” J. Bridge Eng., 755–764.
Chen, S. R., and Wu, J. (2010). “Dynamic performance simulation of long-span bridge under combined loads of stochastic traffic and wind.” J. Bridge Eng., 219–230.
Chen, S. R., and Wu, J. (2011). “Modeling stochastic live load for long-span bridge based on microscopic traffic flow simulation.” Comput. Struct., 89(9–10), 813–824.
CSI analysis reference manual (2008). Computers and Structures, Berkeley, CA.
FEMA. (2000). “Prestandard and commentary for the seismic rehabilitation of buildings.” FEMA-356. Building Seismic Safety Council, Washington, DC.
Mozos, C. M., and Aparicio, A. C. (2010a). “Parametric study on the dynamic response of cable stayed bridges to the sudden failure of a stay, part I: bending moment acting on the deck.” Eng. Struct., 32(10), 3288–3300.
Mozos, C. M., and Aparicio, A. C. (2010b). “Parametric study on the dynamic response of cable stayed bridges to the sudden failure of a stay, part II: bending moment acting on the pylons and stress on the stays.” Eng. Struct., 32(10), 3301–3312.
Mozos, C. M., and Aparicio, A. C. (2011). “Numerical and experimental study on the interaction cable structure during the failure of a stay in a cable stayed bridge.” Eng. Struct., 33(8), 2330–2341.
Nagel, K., and Schreckenberg, M. (1992). “A cellular automaton model for freeway traffic.” J. Phys. I France, 2(12), 2221–2229.
Nazmy, A. S., and Abdel-Ghaffar, A. M. (1990). “Three-dimensional nonlinear static analysis of cable-stayed bridges.” Comput. Struct., 34(2), 257–271.
Post-Tensioning Institute (PTI) (2007). Recommendations for stay cable design, testing and installation, 5th Ed. Cable-Stayed Bridges Committee, Phoenix.
Ruiz-Teran, A., and Aparicio, A. (2009). “Response of under-deck cable-stayed bridges to the accidental breakage of stay cables.” Eng. Struct., 31(7), 1425–1434.
SAP2000 15.0.0 [Computer software]. Berkeley, CA, Computers and Structures.
Starossek, U. (2007). “Typology of progressive collapse.” Eng. Struct., 29(9), 2302–2307.
Wolff, M., and Starossek, U. (2010). “Cable-loss analyses and collapse behavior of cable-stayed bridges.” Proc., Fifth Int. Conf. on Bridge Maintenance, Safety and Management, Taylor & Francis, Philadelphia.
Xu, Y. L., and Guo, W. H. (2003). “Dynamic analysis of coupled road vehicle and cable-stayed bridge system under turbulent wind.” Eng. Struct., 25(4), 473–486.
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© 2014 American Society of Civil Engineers.
History
Received: Nov 13, 2012
Accepted: May 28, 2013
Published online: May 30, 2013
Published in print: Feb 1, 2014
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