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Title: 西海橋の固有振動特性および非線形地震応答に関する研究
Other Titles: Natural vibration properties and nonlinear seismic analysis of the Saikai steel arch bridge
Authors: 呉, 慶雄 / 高橋, 和雄 / 小林, 秀昭 / 中村, 聖三
Authors (alternative): Wu, Qingxiong / Takahashi, Kazuo / Kobayashi, Hideaki / Nakamura, Shozo
Issue Date: Nov-2003
Publisher: 日本鋼構造協会 / Japanese Society of Steel Construction
Citation: 鋼構造年次論文報告集, 11, pp.185-192; 2003
Abstract: The Saikai Bridge, which is a steel arch bridge constructed in 1955 with the span of 216m, is known as not only the first long-span bridge in Japan but also the historical bridge. However, since the design traffic load was as small as 130kN and the concrete slab is also thin with 13cm, there is a recent problem in the maintenance accompanying the increase of traffic loading. This paper discusses natural vibration properties of this bridge based on the original cross sections using 3D FE model. In order to grasp whether the Saikai Bridge should be reinforced against the strong earthquake, the seismic response characteristics and seismic safety are examined by carrying out nonlinear seismic analysis under the Level 2 earthquakes.
Keywords: 西海橋 / 鋼アーチ橋 / 固有振動特性 / 耐震安全性 / Saikai Bridge / steel arch bridge / natural vibration properties / seismic safety
URI: http://hdl.handle.net/10069/33627
ISSN: 18815367
Rights: © 日本鋼構造協会
Type: Journal Article
Text Version: publisher
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/33627

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