Nima Usefi


PhD Candidature

Thesis Title:

Hybrid Cold-Formed Steel Structural Systems for Buildings

Research Project:

Application of Cold Formed steel walls is not a new subject as they have been used as the non-structural components for many years. However, their application as the main load-bearing structural systems is comparatively new and requires appropriate guidelines for their seismic design. Furthermore, the available standards and regulations have not provided enough detailed information for lateral design of the cold formed steel structures. Although many researchers and engineers have attempted to improve the seismic performance of cold formed steel systems by employing different sheathing materials, bracing systems, mixed systems and etc, the need for higher shear capacity of these structural systems is still felt. Hence, this study aims to propose a hybrid wall system of cold formed-hot rolled steel in order to provide better performance and higher resistance in seismic zones. Both numerical and experimental methods are employed in this study in order to evaluate the hysteresis and lateral strength capacity.

Research Project Supervisor/s:

Professor Hamid Ronagh (Principal), Professor Bijan Samali, Doctor Kamyar Kildashti, Doctor Nariman Saeed