2枚合わせHPシェルを対象とした耐荷力に関する研究

抄録

The main purpose of this paper is to evaluate ultimate strength of a concrete shell by applying reduction parameter 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 analysis 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 kinds of materials were investigated, where one was a standard reinforced concrete by steel bar reinforcing. These results were discussed based on the failure numerical ones.