| 翻訳と辞書 |
| Ravning Bridge ： ウィキペディア英語版 |
Ravning Bridge
Ravning Bridge was a 760 m long timber bridge crossing the Vejle River Valley, Denmark in the Viking age. It was located 10 km south of Jelling near the village of Ravning.
== Construction ==
The bridge was built with oak timber. The spans were 2.4 m long and 5.5 m wide. The bridge had 280 piers with consisted of four vertical posts placed at a distance of 1.2 m, and two smaller slanted post at the ends. The vertical posts were square with sides of 30 x 30 cm and up to 6 m long. Over the vertical posts were placed 5.5 m long, 25–30 cm high and more than double as wide horizontal girders. The girders were connected by longitudinal beams on which the deck of the bridge was built.〔
The deck had an area of 3.800 square meters, and it is estimated that more than 300 ha of oak forest was felled to construct the bridge.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Ravning Bridge」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|