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首页> 外文期刊>International journal of steel structures >Effect of Boundary Conditions on the Behavior of Stiffened and Un-Stiffened Cylindrical Shells
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Effect of Boundary Conditions on the Behavior of Stiffened and Un-Stiffened Cylindrical Shells

机译：边界条件对加劲和不加劲圆柱壳行为的影响

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摘要

The effect of boundary conditions is very important in the analysis of cylindrical shells, and is rarely studied in the literature due to its difficult experimental simulation. For large structures such as shell roofs, the type of boundary supports is among the major factors that can minimize the stresses and deflections. In this study, experimental and numerical investigations of the effect of different boundary supports for stiffened and un-stiffened cylindrical shells were conducted. Two different models of the stiffened and un-stiffened cylindrical shells with different boundary conditions, pinned and with rigid diaphragms, were studied. It was shown that by using rigid diaphragms for cylindrical shells, the deflections are minimized by 80%, and by (45-50)% for the stiffened cylindrical shells. From the experimental investigations and the numerical results obtained, the efficiency of the proposed boundary support types for cylindrical shells is confirmed, which can result in economic benefits.
机译：边界条件的影响在圆柱壳分析中非常重要，由于难以进行实验模拟，因此在文献中很少进行研究。对于大型结构（如壳顶），边界支撑的类型是可以最大程度地减小应力和挠度的主要因素之一。在这项研究中，对不同的边界支撑对加劲和不加劲的圆柱壳的影响进行了实验和数值研究。研究了具有不同边界条件的加筋和不加筋圆柱壳的两种不同模型，分别是钉扎的和带有刚性隔板的。结果表明，通过对圆柱壳使用刚性膜片，挠曲最小化了80％，而对于刚性圆柱壳则减小了（45-50）％。通过实验研究和获得的数值结果，证实了所提出的圆柱壳边界支撑类型的效率，这可以带来经济利益。

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