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- W627771523 abstract "This study provides a comparison of four procedures to determine the fatigue life of steel bridges, namely the AASHTO Guide Specifications, BAR7, the Lehigh method, and linear elastic fracture mechanics (LEFM). Results demonstrate that fatigue predictions made using the AASHTO Guide Specifications and LEFM are more accurate than the other two methods. Several details are examined using AASHTO guidelines and linear fracture mechanics principles where the time required for an initial flaw to propagate to a critical depth is calculated. It is found that fatigue lives of actual bridges as determined using fracture mechanics far exceed the remaining safe fatigue life predictions made with current AASHTO specifications. For the case of redundant bridges, an adjustment factor is introduced which at various probability levels, can produce closer estimates of bridge fatigue lives between the AASHTO specifications and fracture mechanics." @default.
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- W627771523 date "2002-06-01" @default.
- W627771523 modified "2023-09-26" @default.
- W627771523 title "FATIGUE STRENGTH OF DETERIORATED AND PREVIOUSLY STRESSED STEEL HIGHWAY BRIDGES" @default.
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