西海橋の固有振動特性および耐震性に関する研究 [in Japanese] Study on natural vibration and seismic capacity in the Saikai Bridge [in Japanese]
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Saikai Bridge is a deck-type fixed arch bridge that was constructed in 1955. At the time it was one of a few long-span bridges in Japan, but as this was shortly after the war, the only tests carried out were operating tests during construction. Therefore in this study, ambient vibrations were measured，and the measured values of natural vibrations and the analysis values of natural vibrations obtained from natural frequency analysis were compared to validate the model and estimate the damping constant. Also, non-linear seismic response analysis was carried out to evaluate the seismic resistance, and the seismic resistance results were compared with those of the newly-constructed New Saikai Bridge(Shin Saikai-bashi).
鋼構造年次論文報告集 (18), 389-392, 2010-11