長崎市中島川石橋群の研究

概要

論文の詳細を見る
The origin and the technique of the stone arch bridges built in 1600's across Nakajima River in Nagasaki were discussed. The history of the stone arch bridges in Europe and China was examined at first. Next the building method of the bridges in Nagasaki was inferred architecturally from the references obtained up to now. Then the size of the bridge and its arch was measured and compared with that of Europe and China on the basis of flatness and audacity factor. As the result, it was found the eye-ring-like stone bridge first built in Nagasaki was basically dependent on the Chinese building method. The Japanese method, however, seems to have already been far advanced than the Chinese one. After that, the proportion of rise to span has changed as the years passed by, which shows the great improvement on the technique for building the bridges. Furthermore, together with the superior technique of the Japanese stone craftsman, the technique of stone bridges prevailed in every part of Kyushu and made up a unique culture of stone bridges.
日本科学史学会の論文
1982-04-30