細長比の小さな円形鋼管部材の座屈および破断を考慮した煙突鉄塔の崩壊機構 COLLAPSE MECHANISM OF STEEL CHIMNEY TOWER CONSIDERING BUCKLING AND RUPTURE OF CIRCULAR HOLLOW SECTIONS WITH SMALL SLENDERNESS RATIO

本研究では，2つの異なる構造形式を有する煙突鉄塔に対し，部材破断のアルゴリズムを座屈後履歴則に組み込んだ漸増動的地震応答解析を実施し，座屈後履歴則の違いが動的応答性状，座屈や破断といった部材の損傷状況，崩壊機構に与える影響を分析しました。
It is known that circular hollow section members used in towers pylons are subjected to cyclic loading after bending buckling, which leads to early member failure. In this paper, a series of incremental dynamic analysis was performed to investigate the effect of the two different hysteresis rules on the collapse mechanism of steel chimney tower considering bucking and rupture of circular hollow sections with small slenderness ratio.
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