圧縮力を受ける一対の曲がり部材で構成された構造体の振動特性に関する研究

抄録

This paper presents dynamic characteristics of curved pair members tied with struts subjected to axial compression. Numerical calculation was performed by using the natural frequency analysis method (QR method) changing the end support conditions, rise-tospan ratio and the axial load to check the practical use of the proposed paired structures. The effects of the end support conditions of those structures on the natural circular frequencies and the natural mode shapes were clarified using non-dimensional parametric analysis. It was found that curved pair members with both “fixed” or “hinged” endssubjected an axial load have higher natural circular frequencies in comparison with the usual straight structures with under the same conditions.