Behaviour and Design of High-performance Steel and Steel-concrete Composite Structures

Owing to the significant benefits, an increasing popularity to adopt the high‐strength materials in the construction industry was witnessed over the recent years. With it comes a series of studies that investigated the mechanical performance of high‐strength steel components, which aimed to encourage a more widespread utilisation in engineering practice. Many of the previous research relating to high‐strength steel/composite structures have been focused on hot‐rolled and cold‐formed sections, whereas applications have been focused on thick and fabricated components in mostly high‐rise and heavily loaded structures. Therefore, a research program funded by the Australian Research Council was initiated in 2018 and comprehensive experimental and numerical studies were performed over the past three years. This paper summarises the major findings on high‐strength bolts, as well as fabricated high‐ and ultra‐high‐strength steel/composite structural members.