Local–flexural interactive buckling of S690 high strength steel slender welded I-section columns: Testing, modelling and design

The present paper reports a thorough experimental and numerical investigation into the local–flexural interactive buckling behaviour and resistances of S690 high strength steel slender welded I-section columns. A testing programme, adopting two S690 high strength steel slender welded I-sections, was firstly conducted and included initial geometric imperfection measurements and ten pin-ended column tests. The testing programme was accompanied by...