A study is reported which attempted to compile and review all available fatigue data. It reevaluated the existing fatigue specificatios so that they more accurately reflected the current state of knowledge. The study developed a database for welded steel bridge details that includes details from all available sources. The study also analyzed the new data on an individual basis with respect to the existing AASHTO fatigue provisions to see if changes are required in the code because of the new test results. The AASHTO fatigue design curves were standardized with the increased database. The study provided new fatigue design specifications for use in national design codes that more accurately define the fatigue resistance of welded steel bridge details.
Abstract