On the resistance of arbitrarily ring‐stiffened welded bins subject to axial compression

On the resistance of arbitrarily ring‐stiffened welded bins subject to axial compression
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任意环加劲焊接仓的轴向压缩抵抗力

DOI:
10.1002/cepa.1484
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发表时间:
2021
期刊:
ce/papers
影响因子:
--
通讯作者:
A.Taras
A.Taras
中科院分区:
--
文献类型:
--
作者:
A. Jäger-Cañás;H.Pasternak;A.Taras

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环肋平底储罐广泛应用于石油、化肥、水、污水、污泥等各种液体的储存。材料效率是通过结合薄板和环肋来实现的。当垃圾箱被圆顶或锥形屋顶覆盖时,由于活荷载或雪荷载而产生的高子午力可能会引发壳体的轴向屈曲。环肋不仅可以抵抗风致屈曲,还可以减少储罐和筒仓因子午线压缩而导致失稳的风险。本文介绍了一项关于轴向屈曲的参数研究结果,以及环肋的最有效位置取决于加强肋的距离、横截面面积和圆柱体的细长。利用修正后的能力曲线,推导出屈曲曲线参数。这样就可以在手工计算过程中直接应用分析结果,从而使从业者能够考虑到环加强筋在轴向压缩下抗屈曲的好处。
Ring‐stiffened flat bottom tanks are widely used in many industries for the storage of liquids, such as oil, fertilizers, water, sewage and sludge. Material efficiency is achieved by combining thin plates with ring‐stiffeners. When the bin is covered by a dome or cone roof, high meridional forces due to live or snow loads may trigger axial buckling of the shell. Ring stiffeners are beneficial, not just against buckling due to wind, but to reduce the risk of stability failure of tanks and silos caused by meridional compression as well.This paper presents the outcome of a parametrical study concerned with axial buckling and the most effective placement of the stiffening rings depending on the stiffener distance, cross‐sectional area and slenderness of the cylinder. Buckling curve parameters are deduced using the modified capacity curve. These allow the direct application of the analysis results in a hand calculation procedure that enables practitioners to take into account the benefits, which come with ring stiffeners against buckling due to axial compression.
Beitrag zur Traglastermittlung Ringversteifter Kreiszyylinderschalen unter Axialdruck
DOI: --
发表时间: 2019
期刊:
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