防撓矩形板の最終強度解析 : 第2報 : 面内圧縮と水圧を同時に受ける防撓板

概要

論文の詳細を見る
This paper considers the ultimate strength of stiffened rectangular plates under compressive and lateral pressure. The approximate analytical method consisted of two parts. The first is elastic large deformation analysis which takes into account the plastification of the stiffener in a simplified way. The second is plastic analysis in which a collapse mechanism is assumed. In the author's first report, the plastic analysis was carried out without plastic moment of the stiffener. Thus, the method was too canservative when lateral pressure is predominant. In this report, particular attention is given to the efficiency of plates stiffened on one side and subjected to lateral pressure. For this purpose, plastic analysis is developed from the plastic moment of plate and stiffener considering Faulkner's effective width formula. The analysis and experiments were carried out for various stiffened plates subjected to compression loading or subjected to combination with compression and lateral pressure loading. The following conclusions were obtained : 1) The calculated ultimate strength of stiffened rectangular plates agrees well with the experimental results. 2) The present method provides an effective means of analysing the ultimate strength of stiffened plates under uniform compression and simultaneous lateral pressure.
社団法人日本船舶海洋工学会の論文