鋼管桁を用いた斜張橋の構造と景観検討

概要

論文の詳細を見る
Two new types of cable-supported bridges using steel pipe girders and steel orthotropic decks are proposed: two-pipe-girder bridges with two cable planes and three-pipe-girder bridges with one cable plane. Each cable-supported bridge with a main span of 500m was designed and verified to be feasible. Wind-tunnel tests were then conducted for these bridges. Torsional flutter occurred at a nondimensional wind speed of about 4.5 for the two-pipe-girder bridge. However, the three-pipe-girder bridge showed superb aerodynamic properties. The aesthetics of these new bridges were studied using computer graphics and models, which show that the proposed bridges are not only structurally sound but also attractive, impressive and harmonious with their surrounding environments.
東海大学の論文