<論文>安定解析に基づくコンクリート造円筒殻の耐力評価に関する研究

概要

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The main purpose of this paper is to evaluate ultimate strength of a concrete shell by applying reduction payamaeter to the linear critical load. Generally a concrete shell could show rather higher rigidity and load-carrying capacity than the other shell and spatial structures, such as lattice dome and tension structures. However the estimation for the ultimate strength of a concrete shell could be faced and accompanied with many difficult problems as for how to select the reliable analysis among rather complicated nonlinear numerical analyses and for how to prepare an effective model among much expensive experiments. In this paper the easy and convenient method to evaluate the ultimate strength of a concrete shell was investigated by applying stability analysis based on the Dulacska's Revised Version of IASS Recommendation and by operating reduction parameters with several kinds of initial imperfection. As for a concrete shell two kinds of materials were investigated, where one was a standard reinforced concrete by steel bar reinforcing and the other was a carbon fiber chip reinforced concrete by mixed-in carbon fiber chip reinforcing and by no steel reinforcing. The latter material could realize the higher quality in both homogeneity and isotropy than standard reinforced concrete. These results were discussed based on the failure experimental ones.
東海大学の論文
2002-09-30