鉄筋コンクリ-ト橋脚の耐震性向上に関する数値解析的アプロ-チ

URI http://harp.lib.hiroshima-u.ac.jp/it-hiroshima/metadata/4223
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Title
鉄筋コンクリ-ト橋脚の耐震性向上に関する数値解析的アプロ-チ
Title Alternative
A Numerical Approach to Enchancement of Earthquake-Resistance of Reinforced Concrete Bridge Piers
Author
氏名 中山 隆弘
ヨミ ナカヤマ タカヒロ
別名 Nakayama Takahiro
氏名 坂手 道明
ヨミ サカテ ミチアキ
別名 Sakate Michiaki
氏名 清水 賢二
ヨミ シミズ ケンジ
別名 Shimizu Kenji
氏名 井上 陽介
ヨミ イノウエ ヨウスケ
別名 Inoue Yousuke
Subject
reinforced concrete
bridge piers
seismic design method
layout of reinforcing bars
Abstract

This research is aimed at establishing effective design methods for reinforced concrete structures, with Particular focus on bridge piers. The reason behind this is because they are most susceptible to the external force due to earthquakes as compared with other reinforced concrete structures and because damage to a bridge pier is a grave concern as it often results in the collapse of the bridge. Throughout this research, an “effective design method for reinforced concrete bridges" has been pursued by trying to invent design methods which enhance ultimate resistance. To be exact, by analyzing the relation between ultimate resistance and the layout of main reinforcing bars and hoops, which clamp the former, this research suggests the most effective layout of reinforcing bars which embraces ultimate resistance. In the first phase, the effects of main reinforcing bars and hoops on ultimate resistance was analyzed by changing the concrete strength (compressive) and reinforcing bar strength (yielding point). The analysis simulated the relation between layout of reinforcing bars and ultimate resistance by changing layouts of main reinforcing bars and hoops in a simulator. The analysis proved that it would be more effective in enhancing earthquake resistance to increase hoops rather than main reinforcing bars. This result is entirely different from the results of conventional design methods, and will offer an invaluable view when establishing future effective design methods.

Journal Title
広島工業大学研究紀要
Volume
31
Spage
177
Epage
185
Published Date
1997
Publisher
広島工業大学
ISSN
03851672
NCID
AN0021271X
Language
jpn
NIIType
Departmental Bulletin Paper
Text Version
出版社版
Old URI
Set
it-hiroshima