FATIGUE ANALYSIS OF MOMENT RESISTING STEEL FRAMES |
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| Authors: | IOANNIS VAYAS ARIS SOPHOCLEOUS FLOREA DINU |
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| Institution: | 1. Department of Civil Engineering , National Technical University of Athens , Patission Str. 42, Athens, GR, 106 82, Greece;2. Romanian Academy, Timisoara Branch, Steel Structures Laboratory , Mihai Viteazul Str. 24, Timisoara, RO, 1900, Romania |
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| Abstract: | A procedure for the fatigue assessment of steel building structures subjected to earthquakes is presented. The procedure constitutes an extension of the present, high-cycle, fatigue assessment to cases of low-cycle fatigue. It may serve as a basis for the introduction of a fatigue limit state in the earthquake design of steel structures. It may be also used for the damage assessment of existing steel buildings subjected to past earthquakes. By means of parametric studies, the effects of various parameters on the fatigue susceptibility of several moment resisting steel frames are studied. The influence of a number of parameters such as the type of ground motion, type of structural typology, local fatigue behaviour, overall frame design and semi-rigidity of joints on the susceptibility to damage are investigated. |
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| Keywords: | Fatigue steel structures moment-resisting frames |
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