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首页> 外文期刊>International journal of structural stability and dynamics >ELASTIC BUCKLING OF THIN-WALLED CYLINDERS UNDER WIND LOADING: AN EXPERIMENTAL STUDY
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ELASTIC BUCKLING OF THIN-WALLED CYLINDERS UNDER WIND LOADING: AN EXPERIMENTAL STUDY

机译：风荷载作用下薄壁圆筒的弹性屈曲实验研究

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摘要

Thin-walled cylindrical structures have been found to display three distinctly different stability failure modes under wind loading, depending on their geometric and material properties. In low cylinders the radial compression at the meridian facing the wind causes a buckling mode similar to that for cylinders under constant radial compression, while very long cylinders display a failure mode characterized by buckling in the lower third of the structure at the side which faces away from the wind. The failure of medium height cylinders is characterized by a number of horizontal, ripple-like buckles in an area around the upper half of the meridian which faces the wind. In an ongoing experimental study, a series of small-scale specimens with a wide range of geometric parameters is being tested in a wind tunnel. To the knowledge of the authors, this is the first time that the particular buckling mode for medium height cylinders has been documented in an experiment. The present paper gives a summary of the results gained from this study so far and compares them qualitatively to those of a previous numerical study.
机译：已经发现，薄壁圆柱结构在风荷载下表现出三种截然不同的稳定性破坏模式，这取决于它们的几何和材料特性。在低气压缸中，子午线面对风的径向压缩会导致弯曲模式，类似于在恒定径向压力下的气压缸，而非常长的气压缸则表现出破坏模式，其特征是结构的下三分之一处在背向侧面的位置弯曲从风中。中高度圆柱体的故障的特征是在子午线上半部围绕风的区域中出现许多水平的波纹状弯曲。在正在进行的实验研究中，正在风洞中测试一系列具有广泛几何参数的小型标本。据作者所知，这是首次在实验中记录了中等高度圆柱体的特定屈曲模式。本文总结了迄今为止从这项研究中获得的结果，并将它们与先前的数值研究进行了定性比较。

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