組合せ荷重を受ける平板の最終強度 : 第3報 : 圧縮と剪断を受ける矩形板

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In our previous report^<1)>, the authors developed a calculation method of the ultimate strength of square plates subjected to compression and shear. In order to get more practical solutions, in this paper, the previously developed analytical method is applied to rectangular plates subjected to compression and shear. At first, buckling analysis is carried out using the energy method as to rectangular plates with aspect ratio β=2 and 3. Secondly, post buckling elastic analysis is conducted on the basis of the knowledge of buckling strength and mode. And finally, the ultimate strength of rectangular plates is obtained by using collapse condition which is introduced by the plastic hinge line method. The following conclusions are obtained. (1) As the result of the buckling analysis based on the energy method, the buckling strength and mode of rectangular plates, which are subjected to various kinds of combination of compression and shear, are obtained. (Table 1) (2) As the result of the post buckling elastic analysis, approximate equations for load-maximum deflection curves are obtained. These equations can be applied to various kinds of combination of load. (eqs. 17 and 18) (3) Interaction curves of the ultimate strength of rectangular plates with aspect ratio p=2 and 3 are obtained. According to the above mentioned curves, it is clarified that ultimate strength and collapse modes depend largely upon the load ratio /. (Figs. 17 & 19)
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組合せ荷重を受ける平板の最終強度 : 第3報 : 圧縮と剪断を受ける矩形板

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