A reliability-based methodology for considering corrosion effects on fatigue deterioration in steel bridges - Part II: Case study of Neka Bridge -

The methodology presented in Part I is examined on Neka Bridge, a railway, truss bridge in northern Iran. The study includes: considerations of climate and air pollution, extraction of the stress-time histories from the FE model, prediction of future traffic volumes in a probabilistic manner and assessment of the effects of MR&R actions on the deterioration profile. PDF of D is determined using Monte Carlo simulations, and the reliability profile is calculated from the performance function. The study shows that for a target reliability of 2.0, the fatigue life of the bridge is reduced by either 29% or 31% if dose-response function or qualitative-based y-t function is used, respectively.

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

[2]  Karl A. Stambaugh,et al.  Improved Ship Hull Structural Details Relative to Fatigue. , 1994 .

[3]  A. A. Mikhailov,et al.  Model for the Prediction of the Time of Wetness from Average Annual Data on Relative Air Humidity and Air Temperature , 2000 .

[4]  Francisco Corvo,et al.  Time of wetness in tropical climate: Considerations on the estimation of TOW according to ISO 9223 standard , 2008 .

[5]  Pedro Albrecht,et al.  Fatigue Tests of 8‐yr Weathered A588 Steel Weldment , 1980 .

[6]  Sh. Ataei,et al.  Sensor fusion of a railway bridge load test using neural networks , 2005, Expert Syst. Appl..

[7]  Pedro Albrecht,et al.  Effect of environmental conditions on corrosion rates , 2007 .

[8]  Pedro Albrecht,et al.  Closure of "Fatigue of Eight-Year Weathered A588 Steel Stiffeners in Salt Water" , 1989 .

[9]  Z. Dawei,et al.  Exposure Programme on Atmospheric Corrosion Effects of Acidifying Pollutants in Tropical and Subtropical Climates , 2007 .

[10]  Francisco Javier,et al.  Corrosion Fatigue of Road Bridges: a review , 2011, International Journal of Electrochemical Science.

[11]  P. Albrecht,et al.  Fatigue Strength of Weathered A588 Steel Beams , 2009 .

[12]  A. G. Madhava Rao,et al.  Corrosion Fatigue of Stiffened Offshore Steel Tubular Joints , 1994 .

[13]  F. Corvo,et al.  Outdoor and indoor atmospheric corrosion of carbon steel , 1999 .

[14]  A. A. Mikhailov,et al.  Estimating and Mapping the Material Corrosion Losses in the European Part of Russia with Unified Doze—Response Functions , 2002 .

[15]  Reza Rahgozar,et al.  Remaining moment capacity of corroded steel beams , 2010 .

[16]  Caroline Bennett,et al.  Use of CFRP Overlays to Strengthen Welded Connections under Fatigue Loading , 2012 .

[17]  Pedro Albrecht,et al.  ATMOSPHERIC CORROSION RESISTANCE OF STRUCTURAL STEELS , 2003 .

[18]  Ghasem D. Najafpour,et al.  ENVIRONMENTAL IMPACT OF FOSSIL FUEL UTILIZATION IN NEKA THERMAL POWER PLANT , 2010 .

[19]  J. Tidblad,et al.  The Classification System of ISO 9223 Standard and the Dose–Response Functions Assessing the Corrosivity of Outdoor Atmospheres , 2004 .

[20]  Andrzej S. Nowak,et al.  Capacity Loss Due to Corrosion in Steel-Girder Bridges , 1989 .