Interaction of Local and Distortional Buckling in Thin-Walled High Strength Steel Sections

悉尼大学最近的研究表明，薄壁高强度钢截面的局部屈曲和扭曲屈曲模式可能存在不利的相互作用。这种类型的冷弯型钢用于住宅建筑、天花板系统、办公室分区系统和其他轻型应用。该项目将开发这种类型的截面相互作用行为的数学模型，适用于广泛的截面几何形状。一个主要的成果将是基于模型准确量化交互行为的设计方法。将进行测试，以支持理论发展和校准设计模型。

Recent research at the University of Sydney has shown that the local and distortional buckling modes in thin-walled high strength steel sections may have adverse interaction. Cold-Formed steel sections of this type are used in residential construction, ceiling systems, partitioning systems in offices and other light gauge applications. The project will develop mathematical models of the interaction behaviour of sections of this type for a wide range of section geometries. A major outcome will be design methods which accurately quantify the interaction behaviour based on the models. Testing will be undertaken to support the theoretical developments and to calibrate the design models.