掲載雑誌(和): 土木学会論文集 V 巻: -巻 号: 360/V-3号 頁: 119-128頁 年: 1985年 月: 8月 著者(和): 尾坂芳夫,鈴木基行,石田博樹,加藤勝美 タイトル(和): RCばりのせん断破壊と補修法に関する研究 抄録(和):
本研究は, 宮城県沖地震で被害を受けたRCラーメン中層ばりを対象に, 各種補修方法の効果を実験的に調べたものである. 特に曲げせん断破壊に対するエポキシ樹脂注入の補修効果をRCばりを用い, ひびわれ幅あるいは変位を尺度として調べた. その結果, ひびわれ部にエポキシ樹脂を注入し補修すれば, ほぼ破壊レベルにまで達した部材でも耐力やじん性が元通り回復し, 使用可能となることが確認できた. キーワード(和): - 掲載雑誌(英): JOURNAL OF MATERIALS,CONCRETE STRUCTURES AND PAVEMENTS 著者(英): タイトル(英): STUDY ON SHEAR FAILURE AND REPAIR METHOD OF REINFORCED CONCRETE BEAM 抄録(英):
Reinforced concrete viaducts of the Tohoku Shinkansen suffered considerable damage especially in mid-height beams due to the Miyagi-ken-oki Earthquake (1978), and there were quite a number that would not have been able to withstand normal use without remedy. In this study the strength-deformation characteristics of 1/2- or 1/3-scale model specimens of rigid-frame viaduct mid-height beams are obtained experimntally, and the bending shear characteristics of mid-height beams are examined. Further, various repair methods are applied to specimens loaded to different levels with crack width or displacement as the yardstick, and the effect are investigated. As a result, it is confirmed that member yielding load, resistance, deformation performance, etc., are not less than those of the original member if repaired properly by injecting epoxy resin in cracked parts. キーワード(英): - 記事区分 投稿論文 区分     論文集