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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Rail bridge over Morava river between Staré Město and Uherské Hradiště
 Křivánek, David ; Štrba, Michal (referee) ; Pešek, Ondřej (advisor)
This diploma thesis deals with the design and assessment of a railway bridge over the Morava River between Staré Město and Uherské Hradiště on line No. 341. The existing railway bridge has a span of 20,5 + 60 + 20,5 m. Five different variants with different static systems were developed. All variants of the bridge steel structure were designed and solved with a lower orthotropic bridge deck. To select the final variant, all variants were statically assessed and compared using multicriteria analysis based on the selected criteria. The final variant was subsequently assessed in more detail according to the applicable standards.
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Loading of bridges and accumulation of fatigue damage
 Rieger, M. ; Marek, Pavel
The article presents discussion and recommendation in connection with influence and evaluation methods of bridge loading events. Newly, according to Eurocode 3, two reliability concepts may be considered: damage tolerant concept and safe life concept. Fatigue life assessment may be based on fully probabilistic concept, too. The loading as well as response history should be taken into consideration and a fatigue criterion, based on the stress-range concept, should be applied. Crack grown may be modeled using LEFM procedures, initial crack size ai may be determined as input random variable with log-normal distribution.
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