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  1. 防災科研関係論文

Failure mechanism of column components and systems of bridges

https://nied-repo.bosai.go.jp/records/4647
https://nied-repo.bosai.go.jp/records/4647
9838c7b4-fca4-4184-b239-d2b0d53c317d
Item type researchmap(1)
公開日 2023-03-30
タイトル
言語 en
タイトル Failure mechanism of column components and systems of bridges
言語
言語 eng
著者 Kazuhiko Kawashima

× Kazuhiko Kawashima

en Kazuhiko Kawashima

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Tomohiro Sasaki

× Tomohiro Sasaki

en Tomohiro Sasaki

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Takashi Matsumoto

× Takashi Matsumoto

en Takashi Matsumoto

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Gakuho Watanabe

× Gakuho Watanabe

en Gakuho Watanabe

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Seiji Nagata

× Seiji Nagata

en Seiji Nagata

Search repository
Hiromichi Ukon

× Hiromichi Ukon

en Hiromichi Ukon

Search repository
Koichi Kajiwara

× Koichi Kajiwara

en Koichi Kajiwara

Search repository
抄録
内容記述タイプ Other
内容記述 Bridges are a vital component of transportation facilities. Because it was revealed in past earthquakes that bridges were extremely vulnerable to seismic effects, a project on the failure mechanism of bridges was identified as one of the high priority areas of the National Institute of Earth Science and Disaster Prevention (NIED). Consequently, a five year research project on the large-scale experiments of bridges was launched at NIED in 2005. E-Defense is the world largest and powerful shake table constructed by NIED for clarifying the failure mechanism of structural components and systems under extreme ground motions, and it started its full service in 2006. Large scale experiments using E-Defense on bridge is scheduled in 2007-2009 based on NEES/E-Defense collaboration. Two types of model are proposed for bridge experiments
component model (C1 model) and system model (C2 model). C1 models are reinforced concrete columns which are tested to clarify failure mechanism of columns which collapsed or suffered extensive damage in 1995 Kobe, Japan earthquake, and verify the effectiveness of current seismic retrofit measures and seismic performace of columns designed based on the current design criteria. Reinforced concrete columns with diamter of nearly 2 m are excited by E-Defense as shown in Figure 1. C2 models are system models which are tested to clarfify progressive failure mechanism, effectiveness of advanced technology. Several pre E-Defense studies were conducted in 2005 and 2006 to evaluate necessary information prior to the large scale experiment using E-Defense. This paper shows an experimental clarification of failure mechanism on reinforced bridge columns which suffured extensive shear failure. This was the major damage of bridges in 1995 Kobe earthquake. c 2007 American Society of Civil Engineers.
言語 en
書誌情報 en : Structural Engineering Research Frontiers

発行日 2007
DOI
関連識別子 10.1061/40944(249)36
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