有珠山噴火に伴う地殻変動を受ける泉の沢橋に関する数値解析的検討

概要

論文の詳細を見る
A multi-span Prestressed-Concrete hollow rigid-frame bridge has been constructed near Mt.Usu as a part af Central Hokkaido expressway by Japan Highway Public Corporation, whichis named ms Tzumi-no-sawa Bridge. The bridge suffered severe crustal movements due toeruption of Mt. Usu occurred in March 2000. In this paper, in order to investigate the influence of the crustal movements on the bridge, static force-displacement analysis is performedby means of 3D elastic finite element method taking geametrical nonlinearity into account.From this study, following results are obtained: 1) damaged area of each Reinforced Concrete pier can be estimated by this mumerical analysis; and 2) it can he numerically madeclear that the footings of bridge pier from P4 through P9 are more moved in the direction ofDate than its superstructure.
室蘭工業大学の論文
2001-11-30