AISI S100 to check cold-formed flexural members for biaxial bending strength

Abstract

Although cold-formed steel structures have been widely used, there is no Vietnamese standard specialized for this type of structure. Cold-formed components are therefore often designed by foreign standards, such as AISI S100. The lack of standards and instructions produces mistakes in the design of cold-formed steel structures. To step-by-step compile instructions for calculating cold-formed structures, the article introduces the procedure for using the Direct Strength Method (DSM) to check the flexural members in a combination of two bendings, in which the analytical solutions are utilized. An example of a wall girt is used to illustrate the procedure. It is seen that the workload of DSM using analytical solutions is very large compared to using numerical solutions. Therefore, it needs to continue to be improved.

Keywords: Cold-formed; thin-walled; available strength; biaxial bending; combined two bending; girt.