前損傷および修復の有無による炭素短繊維補強コンクリート造円筒殼の耐力と損傷形態変化

概要

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The strength and postdamage patterns of predamaged and retrofitted carbon-fiber-chip-reinforced concrete cylindrical shells were investigated, both experimentally and numerically, in this study. The concrete was artificially predamaged before the loading experiment using a one-point concentrated load, and the retrofit applied to the predamaged shells was realized using noncontracted mortar and carbon-fiber sheets. In the experimental study, a static point load was applied perpendicularly onto the predamaged and retrofitted cylindrical shell specimens until the postdamage was obtained by applying the maximum strength. In the numerical analysis, nonlinear finite element analysis including concrete cracking and tension-stiffening effects was applied. The strength and postdamage patterns of the predamaged and retrofitted carbon-fiber-chip-reinforced concrete shells are discussed on the basis of the results of the numerical analysis and the experiment.
東海大学の論文