| Popis: |
Fatigue cracks initiated from various connection details are common problems in steel bridge structures. Extensive research has been performed in the past few decades and design/evaluation guidelines have been developed for bridge engineers. Nevertheless, various fatigue problems are still occurring on a frequent ba sis with the aging of our infrastructure systems. This paper discusses a few types of fatigue cracks in highway steel bridges based on recent experience. The emphasis is on the subjects where technical guidelines are not available from the current specific ations. Several cases are discussed for lessons learned from repairing fatigue cracks in bridge |
