Development of Proposed European Design Rules for Buckling of Axially Compressed Cylinders
Development of Proposed European Design Rules for Buckling of Axially Compressed Cylinders
复制标题
欧洲轴向压缩圆柱体屈曲拟议设计规则的制定
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
J. Rotter
中科院分区：
文献类型：
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作者：
J. Rotter
薄轴向压缩圆柱体广泛用于土木工程壳体结构：塔，烟囱，罐和筒仓。世界各地的设计标准在强度预测方面差别很大，而且都是基于实验室测试结果的经验下限。强度评估中分散的主要原因是对几何缺陷的敏感性，这自然会因实验室和制造方法的不同而不同。本文阐述了贝壳强度和稳定性欧洲标准新提议规则背后的一些发展。这些规则涵盖了气缸在轴向压缩下的屈曲，以及内压气缸的强度。设计强度与最近计算的屈曲强度有关，并试图表明设计假设缺陷与施工过程中的公差之间的适当关系。
Thin axially compressed cylinders are used in a wide range of civil engineering shell structures: towers, chimneys, tanks and silos. Design standards throughout in the world differ considerably in their strength predictions, and all are based on empirical lower bounds to laboratory test results. The chief reason for the scatter in strength assessments is the sensitivity to geometric imperfections, which naturally vary from one laboratory to another and according to the method of fabrication. This paper sets out some of the development behind the new proposed rules for the European standard on Strength and Stability of Shells. These rules cover cylinder buckling under axial compression alone, and the strength of internally pressurised cylinders. The design strengths are related to recent calculated buckling strengths, and an attempt is made to indicate the appropriate relationship between design assumed imperfections and tolerances during construction.