Conclusion

Thin-element purlin systems are now widely used. Numerous tests have been carried out to determine their specific behavior. Forming technologies enable us to envisage ever more optimized shapes to benefit from the advantages of work-hardening.

What has been presented in the context of fault systems can be transposed to any application of this type of profile.

Complete lightweight frameworks for single-family homes or industrial buildings are already a reality. The lightness of the components is also an advantage for elevation projects.

The use of thin profiles opens up real prospects, particularly in terms of logistics (site duration), limiting the need for lifting equipment, simplifying erection, project adaptability and environmental performance (recyclability of steel, use of the dry process).