Fatigue failure mechanisms of thin-walled hybrid plate girders

Fatigue failure mechanisms of thin-walled hybrid plate girders

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Steel plate girders of bridges and industrial structures are usually subjected to dynamic fatigue loading. Their thin-slender webs under dynamic fatigue loading are laterally buckling and vibrating. The consequence of that can be arising and successive development of fatigue cracks along the welded...

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Main Author: Juhás Pavol
Format: Article
Language:English
Published: EDP Sciences 2017-01-01
Series:MATEC Web of Conferences
Online Access:https://www.matec-conferences.org/articles/matecconf/pdf/2017/07/matecconf_bd2017_01001.pdf
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spelling doaj-39bb0077fdc4456c8863d390d258da682021-08-12T14:13:12ZengEDP SciencesMATEC Web of Conferences2261-236X2017-01-01930100110.1051/matecconf/20179301001matecconf_bd2017_01001Fatigue failure mechanisms of thin-walled hybrid plate girdersJuhás Pavol0Institute of Technology and Business in České Budějovice, Department of Civil EngineeringSteel plate girders of bridges and industrial structures are usually subjected to dynamic fatigue loading. Their thin-slender webs under dynamic fatigue loading are laterally buckling and vibrating. The consequence of that can be arising and successive development of fatigue cracks along the welded connections of the thin webs with flanges and stiffeners. Therefore, the fatigue strength and life/time of thin-walled plate girders depend beside of usual material-technological and structural influences also on stability aspects. Basic knowledge about fatigue failure mechanisms of thin-walled hybrid plate girders is presented with the regard for their local stability, obtained and by theoretical an experimental analyses. The outcome of obtained results is that the fatigue consequences of thin webs vibration can be effectively reduced by appropriate reduction of their slenderness. Therefore, the empirical formula for the limitation of web slenderness has been proposed and recommended for plate girders subjected to dynamic fatigue loading.https://www.matec-conferences.org/articles/matecconf/pdf/2017/07/matecconf_bd2017_01001.pdf
collection DOAJ
language English
format Article
sources DOAJ
author Juhás Pavol
spellingShingle Juhás Pavol
Fatigue failure mechanisms of thin-walled hybrid plate girders
MATEC Web of Conferences
author_facet Juhás Pavol
author_sort Juhás Pavol
title Fatigue failure mechanisms of thin-walled hybrid plate girders
title_short Fatigue failure mechanisms of thin-walled hybrid plate girders
title_full Fatigue failure mechanisms of thin-walled hybrid plate girders
title_fullStr Fatigue failure mechanisms of thin-walled hybrid plate girders
title_full_unstemmed Fatigue failure mechanisms of thin-walled hybrid plate girders
title_sort fatigue failure mechanisms of thin-walled hybrid plate girders
publisher EDP Sciences
series MATEC Web of Conferences
issn 2261-236X
publishDate 2017-01-01
description Steel plate girders of bridges and industrial structures are usually subjected to dynamic fatigue loading. Their thin-slender webs under dynamic fatigue loading are laterally buckling and vibrating. The consequence of that can be arising and successive development of fatigue cracks along the welded connections of the thin webs with flanges and stiffeners. Therefore, the fatigue strength and life/time of thin-walled plate girders depend beside of usual material-technological and structural influences also on stability aspects. Basic knowledge about fatigue failure mechanisms of thin-walled hybrid plate girders is presented with the regard for their local stability, obtained and by theoretical an experimental analyses. The outcome of obtained results is that the fatigue consequences of thin webs vibration can be effectively reduced by appropriate reduction of their slenderness. Therefore, the empirical formula for the limitation of web slenderness has been proposed and recommended for plate girders subjected to dynamic fatigue loading.
url https://www.matec-conferences.org/articles/matecconf/pdf/2017/07/matecconf_bd2017_01001.pdf
work_keys_str_mv AT juhaspavol fatiguefailuremechanismsofthinwalledhybridplategirders
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