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The Orthotropic Plate Analysis of Stiffened Plataes with Open Ribs  

Chu, Seok Beom (세명대학교 토목공학과)
Kim, Chang Su (D. M. 엔지니어링)
Publication Information
Journal of Korean Society of Steel Construction / v.14, no.6, 2002 , pp. 701-710 More about this Journal
Abstract
An analysis program using orthotropic plate elements was developed to simplify the analysis of plates stiffened with open ribs and the orthotropic behavior of stiffened plates and the application of this program were evaluated using the sensitivity analysis and the parametric study. The inertial moment ratio, i.e., the ratio of the inertial moment of the rib to that of the plate was defined and the orthotropic behavior of stiffened plates corresponding to the inertial moment ratio was proved by the sensitivity analysis. To evaluate the application of this program, the parametric study for various types of stiffened plates was performed and then the maximum displacement of this study was compared to that of ABAQUS using isoparametric plate elements. The Results of this study agreed well with that of ABAQUS at the particular inertial moment ratio, that is proposed to the limit ratio of the orthotropic plate analysis and the correlative function between the error ratio and the inertial moment ratio was obtained. Therefore, the orthotropic plate analysis of stiffened plates with open ribs could have safe results over the limit ratio and also have good results simply by using the correlative function of this study.
Keywords
Stiffened Plate; Open Rib; Orthotropic Plate Element; Isoparametric Plate Element; Inertial Moment Ratio; Correlative Function;
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