炭素短繊維補強コンクリート造半球殻の開口部が耐力に及ぼす影響

概要

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The main purpose of this study is to investigate the effects of openings within a shell on the strength of concrete hemispherical shells reinforced with carbon fiber chips. As the variable parameters of the shell openings, the number of openings and their opening angles of elevation were adopted. Openings on the shell surface could introduce light into the interior space of a building so that the interior space could be brightened and be comfortable to live in. The concrete with carbon fiber chip reinforcement could realize high homogeneity and isotropy independently of the direction of ordinary steel bar reinforcement. A fracture experiment was conducted on small-scaled concrete shell specimens reinforced with carbon fiber chips, which were loaded perpendicularly under point load up to the fracture state. Nonlinear numerical analysis was carried out to compare with the experimental results. The consistency between the experimental strength and the numerical strength was checked by taking into account the actual shell thickness. Furthermore, the fluctuation in the natural frequency corresponding to the fractural state on the shell surface was investigated.
東海大学の論文
2006-03-31