炭素繊維シートにより修復された鉄筋コンクリート造円筒殻の耐力

概要

論文の詳細を見る
The main purpose of this study is to investigate, both experimentally and numerically, the strength of retrofitted reinforced concrete cylindrical shells. Three kinds of retrofits to the damaged shells were adopted in this paper: Precut retrofit, filler retrofit and sheeting retrofit. Precut retrofit was defined as the method worked to cut the region adjacent to the damaged boundary to be smoothed in order to avoid stress concentration. Filler retrofit was defined as the method made by filling the region with the non-contracted mortar after applying by Precut retrofit. Sheeting retrofit was defined as the method worked on the surface of the region covered with the carbon fiber sheets after applying by Filler retrofit. If the reinforced concrete cylindrical shells were damaged by natural disasters, such as earthquakes, impact loads, wind and explosions, the strength of reinforced concrete cylindrical shells that were retrofitted based on damage to the shells has never been previously evaluated. In this study, the shells were artificially damaged before evaluation by a loading experiment using a one-point concentrated load. The damaged shells were retrofitted by the three methods. A static point load was applied perpendicularly onto the retrofitted cylindrical shell specimens. A numerical study by nonlinear FEM analysis including analysis of the fluctuations of the shell thickness was also conducted. The strength of the retrofitted concrete shells was discussed based on the results of the nonlinear FEM analysis and loading experiment.
一般社団法人日本建築学会の論文
2009-03-27

炭素繊維シートにより修復された鉄筋コンクリート造円筒殻の耐力

スポンサーリンク

概要

著者

関連論文

スポンサーリンク