Fatigue life estimation of existing bridges under vehicle and non-stationary hurricane wind

Abstract During hurricane events, additional damages to existing bridge details might be accumulated from the large stress cycles generated by the non-stationary wind and dynamic vehicle loads. The environmental corrosion could also reduce the structural fatigue strength. Based on the non-stationary wind field modeling techniques and the vehicle–bridge–wind dynamic analysis framework, this paper initiates a fatigue damage assessment of existing bridges with corrosion under vehicle and non-stationary extreme hurricane wind loads. The non-stationary hurricane wind is simulated as a summation of time-varying mean and fluctuating non-stationary components with a time-varying spectrum. Dynamic stress histories are obtained by solving the vehicle–bridge–wind dynamic system. The rain flow counting method is used to obtain the stress ranges and numbers of stress cycles. The corrosion induced fatigue strength degradation is included in the analysis. Numerical examples of an existing long span bridge under simulated non-stationary hurricane winds and vehicles are presented to demonstrate the effects of the dynamic loads and corrosions on the fatigue life estimation of existing bridges.

[1]  Andrzej S. Nowak,et al.  Evaluation of Corroded Steel Bridges , 1987 .

[2]  Hideyuki Honda,et al.  Spectra of Road Surface Roughness on Bridges , 1982 .

[3]  Andrzej S. Nowak,et al.  Reliability profiles for steel girder bridges with regard to corrosion and fatigue , 2001 .

[4]  C. S. Cai,et al.  Equivalent Wheel Load Approach for Slender Cable-Stayed Bridge Fatigue Assessment under Traffic and Wind: Feasibility Study , 2007 .

[5]  H. Uhlig,et al.  Corrosion and corrosion control , 1971 .

[6]  O. C. Zienkiewicz,et al.  The Finite Element Method: Its Basis and Fundamentals , 2005 .

[7]  Palle Thoft-Christensen,et al.  INTERNATIONAL CONTRIBUTION TO THE HIGHWAYS AGENCY'S BRIDGE RELATED RESEARCH , 2000 .

[8]  Kishor C. Mehta,et al.  Investigation of stationary and nonstationary wind data using classical Box-Jenkins models , 1993 .

[9]  Peter B. Keating,et al.  Evaluation of Fatigue Tests and Design Criteria on Welded Details , 1986 .

[10]  Wei Zhang,et al.  Fatigue Reliability Assessment for Long-Span Bridges under Combined Dynamic Loads from Winds and Vehicles , 2013 .

[11]  Christopher Baker.  The quantification of accident risk for road vehicles in cross winds , 1994 .

[12]  Suren Chen,et al.  Framework of vehicle–bridge–wind dynamic analysis , 2004 .

[13]  J. Kaimal,et al.  Spectral Characteristics of Surface-Layer Turbulence , 1972 .

[14]  Kerry A. Emanuel,et al.  Global Warming Effects on U.S. Hurricane Damage , 2011 .

[15]  C Hahin,et al.  Effects of Corrosion and Fatigue on the Load Carrying Capacity of Structural and Reinforcing Steel , 1994 .

[16]  Bryan E. Little,et al.  American Association of State Highway and Transportation Officials. Highway Drainage Guidelines American Association of State Highway and Transportation Officials. LRFD Bridge Design Specifications , 2000 .

[17]  T. E. Blejwas,et al.  Dynamic interaction of moving vehicles and structures , 1979 .

[18]  Stephen P. Timoshenko,et al.  Vibration problems in engineering , 1928 .

[19]  Ahsan Kareem,et al.  Applications of wavelet transforms in earthquake, wind and ocean engineering , 1999 .

[20]  Edward N. Rappaport,et al.  THE DEADLIEST, COSTLIEST, AND MOST INTENSE UNITED STATES TROPICAL CYCLONES FROM 1851 TO 2004 (AND OTHER FREQUENTLY REQUESTED HURRICANE FACTS) , 2005 .

[21]  Yl L. Xu,et al.  Fully Computerized Approach to Study Cable-Stayed BRIDGE-VEHICLE Interaction , 2001 .

[22]  J. D. Robson,et al.  The description of road surface roughness , 1973 .

[23]  E. W. C. Wilkins,et al.  Cumulative damage in fatigue , 1956 .

[24]  Wei Zhang,et al.  Fatigue Reliability Assessment for Existing Bridges Considering Vehicle Speed and Road Surface Conditions , 2012 .

[25]  You-Lin Xu,et al.  On modelling of typhoon‐induced non‐stationary wind speed for tall buildings , 2004 .

[26]  Suren Chen,et al.  Dynamic Performance Simulation of Long-Span Bridge under Combined Loads of Stochastic Traffic and Wind , 2010 .

[27]  Mark Finkle Green,et al.  The dynamic response of short-span highway bridges to heavy vehicle loads , 1991 .

[28]  Lawrence A. Twisdale,et al.  Wind-Field and Filling Models for Hurricane Wind-Speed Predictions , 1995 .

[29]  Yl L. Xu,et al.  Dynamic Stress Analysis of Long Suspension Bridges under Wind, Railway, and Highway Loadings , 2011 .

[30]  Tao Liu,et al.  Buffeting-induced fatigue damage assessment of a long suspension bridge , 2009 .

[31]  Ahsan Kareem,et al.  Numerical simulation of wind effects: A probabilistic perspective , 2006 .

[32]  M. Komp.  Atmospheric corrosion ratings of weethering steels ― calculation and significance , 1987 .

[33]  Fred Moses,et al.  Calibration of Bridge Fatigue Design Model , 1985 .

[34]  Dan M. Frangopol,et al.  Bridge fatigue reliability assessment using probability density functions of equivalent stress range based on field monitoring data , 2010 .

[35]  Andrzej S. Nowak,et al.  Time-variant reliability profiles for steel girder bridges , 2008 .

[36]  P. Vickery,et al.  HURRICANE WIND FIELD MODEL FOR USE IN HURRICANE SIMULATIONS , 2000 .

[37]  Yl L. Xu,et al.  Fatigue analysis of long-span suspension bridges under multiple loading: Case study , 2011 .

[38]  Ahsan Kareem,et al.  Analysis interpretation modeling and simulation of unsteady wind and pressure data , 1997 .

[39]  C. S. Cai,et al.  Vehicle Induced Dynamic Behavior of Short-Span Slab Bridges Considering Effect of Approach Slab Condition , 2008 .

[40]  Andrzej S. Nowak,et al.  Reliability of corroded steel girder bridges , 1989 .