<論文>円形開口部付炭素短繊維補強コンクリート造半球殻の終局耐力

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The main purpose of this paper is to investigate the strength and failure patterns of carbon fiber chip reinforced concrete hemispherical shells with some openings under point load at the top of the shell. Openings within shell surface could make the interior space to be keeping high quality, because both of introducing the light into the inner space and of brightening the interior space to be comfortable. Therefore up to now many famous concrete shell structures with openings has been constructed. On the other hand carbon fiber chip reinforced concrete shell structures could realize not only the good mechanical behaviors, such as high homogeneity and isotropy, but also smooth construction process with none or reducing of steel bar reinforcing. In this paper, the effects by the number of openings and their arrangements on the shell surface were investigated for shell strength, both experimentally and numerically. The failure experiment was conducted on carbon fiber chip reinforced concrete small-scaled shell specimens, which were loaded perpendicularly with point load up to the failure states. The nonlinear numerical analysis was conducted on the layered iso-parametric models with irregularly variable thickness corresponding the experimental specimens. The results were discussed based on the experiment and numerical analysis. Furthermore the effects by the variances within material constants of concrete and by those within the actual shell thickness were also investigated for shell strength.
東海大学の論文
2002-09-30

<論文>円形開口部付炭素短繊維補強コンクリート造半球殻の終局耐力

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