Inhaltszusammenfassung

In many of the so called developed countries a large amount of infrastructure has been established, which have been designed safe life, if a finite life has been considered. Strictly following a safe life approach requires such infrastructure to be taken out of service once this finite life comes to an end. This is however economically often not possible, since most of the infrastructure has become an asset of indispensable use. Taking advantage of a material's scatter in fatigue life however...In many of the so called developed countries a large amount of infrastructure has been established, which have been designed safe life, if a finite life has been considered. Strictly following a safe life approach requires such infrastructure to be taken out of service once this finite life comes to an end. This is however economically often not possible, since most of the infrastructure has become an asset of indispensable use. Taking advantage of a material's scatter in fatigue life however requires a more profound assessment of a structure in terms of the loads applied and the resulting degree of damage it can tolerate, how its current damage condition can be assessed and how its residual life can be estimated. The paper will provide an idea and a concept on how this can be applied for steel structures taking a steel railway bridge as an example. The idea in this case is based on the use of measuring the electromagnetic properties at different locations of a structure and correlating those to stress, strain and damage distributions on the one side and performing residual fatigue life evaluations on the other allowing an interesting life cycle management process to be initiated.» weiterlesen» einklappen

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DDC Sachgruppe:
Ingenieurwissenschaften