鋼構造ラーメン骨組の耐震設計における梁端接合部の耐力要求値

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This paper presents the results of experimental studies concerning the moment carrying capacity of steel wide flange beams subjected to cyclic bending. Beam specimens were dynamically loaded in various loading sequences under the condition that local and lateral bucklings and connection fractures were effectively prevented. The major findings obtained from these tests are as follows: 1) the bending moment carried by beams increases during the initial three cycles under constant displacement amplitude, and subsequently reaches the upper limit. 2) the possible maximum moment capacities are obtained for both short and normal beams, and 3) flexural strength demands for beam-to-column connections can be evaluated taking into account deformation amplitude and the number of excursions during the earthquake response.
2003-05-30