RESEARCH ON SECTION CLASSIFICATION OF AUSTENITIC STAINLESS STEEL FLEXURAL MEMBERS

In order to study the section classification of stainless steel flexural members, the finite element (FE) software ABAQUS was used to establish the FE model of stainless steel welded I-section and box-section members, and the validity of the FE models was verified by the experimental results. Using the FE model, a large number of parameter analyses were carried out, and the rationality and applicability of the classification limit of the width-to-thickness ratio of section plates in European stainless steel code EN 1993-1-4+A2 and standard for design of steel structures GB 50017−2017 were evaluated. By considering the correlation of section components, the paper proposed the section classification method, width-to-thickness ratio grade and limit value of section plates for austenitic stainless steel flexural members.