衝撃荷重を受ける開口部付き鉄筋コンクリート造円筒殻の耐力

概要

論文の詳細を見る
The main purpose of this paper is to investigate both experimentally and theoretically, the strength of reinforced concrete roof-type circular cylindrical shells with openings under impact load. The shell boundaries were stiffened with straight edge beams and circular edge arches and the shell structure was restrained by pins at four intersecting points with the edge arches and edge beams. The dynamic response behavior of shell could be disturbed with openings, which could make the interior space of the shell to be much favorable and lighted. And moreover the irregular shape of dynamic partial load, such as not only point load but also line load, could also produce the disturbance in dynamic behaviors of a shell. Therefore in this paper the influences of both the opening within the shell surface and the impact line load on shell strength were investigated. Impact line load of which direction paralleled to the circular curve of the shell directrix was adopted. The parameters of the impact line load are line load length and load density patterns. The experimental failure study was conducted on reinforced concrete shell specimens. Impact line load was applied perpendicularly onto the shell surface. The theoretical study was conducted using nonlinear dynamic finite element analyses considering concrete cracking and tension stiffening effects. Twenty-node iso-parametric shell elements with the reduced integration techniques were adopted. The strength and the dynamic nonlinear behaviors of shells with openings under impact load are discussed based on the results of the experiments and analyses.
東海大学の論文

衝撃荷重を受ける開口部付き鉄筋コンクリート造円筒殻の耐力

スポンサーリンク

概要

著者

関連論文

スポンサーリンク