Abstract
Connect4C is a research project funded by the European Union, which aims
to develop a system of high-strength steel connections for circular steel construction. It focuses
on developing ready-to-use, standardized solutions for demountable, reusable, and adaptable
3D connections, taking advantage of the enhanced performance of advanced steel grades. The
project considers the development of three most-used joint types: beam-to-column simple
joints, beam-to-column moment-resisting joints and column splices. The combination of these
three joints covers the requirements of most building structures. The paper presents the gen-
eral approach of the project, the objectives pursued, and the development being carried out
for the development of the system, considering specific tests and analyses.
DOI: https://doi.org/10.1201/9781003658641-35