Original title: Příspěvek k problematice únavové životnosti mostních provizorií
Translated title: Contribution to the solution of a fatigue problem considering the durability of temporary bridges structures
Authors: Rieger, M. ; Marek, Pavel
Document type: Papers
Conference/Event: Celostátní konference se zahraniční účastí „Spolehlivost konstrukcí“/9./,, Ostrava (CZ), 2008-04-14 / 2008-04-15
Year: 2008
Language: cze
Abstract: [cze] [eng]
Článek popisuje určení trvanlivosti provizorního vysoce namáhaného ocelového mostu vystaveného provozu tramvají, postaveného v roce 1977 v Praze. Životnost z hlediska akumulace poškození únavou je hodnocena plně pravděpodobnostním přístupem. The article presents the fatigue life estimate of a temporary, high strength steel bridge for tram traffic built in 1977 in Prague. Fatigue life assessment is now based on fully probabilistic concept. The loading as well as response history was considered and a fatigue criterion, based on the stress-range concept, was applied. Crack growth was modelled using LEFM procedures and compared with observed real cracks in the bottom flanges after about three and a half years of use. In the end the bridge had to be removed.
Keywords: reliability of structures; steel bridges; temporary structures
Project no.: CEZ:AV0Z20710524 (CEP), GA103/07/0557 (CEP)
Funding provider: GA ČR
Host item entry: Sborník referátů IX. celostátní konference se zahraniční účastí „Spolehlivost konstrukcí“,, ISBN 978-80-02-02007-3

Institution: Institute of Theoretical and Applied Mechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0160578

Permalink: http://www.nusl.cz/ntk/nusl-38755


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Research > Institutes ASCR > Institute of Theoretical and Applied Mechanics
Conference materials > Papers