Remaining Fatigue Life Assessment

[Bmartin]

Assessment of Existing Steel Structures: Recommendations for Estimation of Remaining Fatigue Life

Assessment of Existing Steel Structures: Recommendations for Estimation of Remaining Fatigue Life
B. Kühn, M. Lukić, A. Nussbaumer, H.-P. Günther, R. Helmerich, S. Herion, M.H. Kolstein,
S. Walbridge, B. Androic, O. Dijkstra, Ö. Bucak


This report is part of the so-called background documents on Eurocodes. It has been prepared to
provide technical insight on the way existing steel structures could be assessed and the remaining
fatigue life could be estimated.
It may be used as a main source of support to:
– further harmonize design rules across different materials, and
– further develop the Eurocodes.

Due to the demand for freight volume on rail and road, traffic has increased significantly in the past years leading to increasing number of heavy vehicles in the traffic flows and greater exploitation of their loading capacities. Because of environmental considerations there is also a tendency to further enhance the admissible loads in the design of new heavy vehicles (e.g. by increasing axle loads or using road trains). This all may affect the safety, serviceability and durability of existing bridges. Bridge authorities are therefore interested in agreed methods to assess the safety and durability of existing bridges and to make appropriate provisions for more refined maintenance methods, possible restriction of traffic, bridge-rehabilitation or substitution of old bridges by new ones where necessary. For steel bridges including the old riveted ones there are numerous approaches to such assessments, partly standardized by national codes or recommendations. In the light of the development of the European single market for construction works and engineering services there is thus a need to harmonize them and to develop agreed European technical recommendations for the safety and durability assessment of existing structures. These recommendations should follow the principles and application rules in the Eurocodes and provide a scheme with different levels of analysis: a basic level with general methods and further levels with higher sophistication that call for specific expertise.

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[peixoto]

You can get this doc and other in the official webpage of the organization

Code:

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regards