Reliability-based evaluation of seismic design and numerical studies of Self-centering moment resisting steel frames

by, Silvana Sukaj, Pierluigi Abiuso, Paola Paterna, Donato Abruzzese

ABSTRACT

Recently developed self–centering moment resisting steel frames have been analytically and experimentally validated as having the potential to eliminate structural damage under a design basis earthquake and return to their original vertical position following a major earthquake. The objective of this research is to develop the understanding of behavior and performance of steel Self Centering – Moment Resisting Frame (SC – MRF) systems. This study examines the response numerically simulated of a 3, 8, and 19 story SC-MRF subject to dynamic time – domain analysis, using a database of different terms, as for instance the recorded earthquake of El Centro 1940, one of the most powerful recorded in history. Peak structural demand responses such as story drift and beam-column relative rotation has been evaluated. This data is used to examine the sensitivity of the SC – MRF behavior to structural properties and geometry. The results could be used to develop a reliability-based seismic design procedure for these SCMRF connection details.

Keywords: Steel frame, Self-centering moment resisting frame, frame ductility, seismic design.

How to cite: Sukaj, S., Abiuso, P., Paterna, P., & Abruzzese, D. (2021). Reliability-based evaluation of seismic design and numerical studies of self-centering moment resisting steel frames. Ingenious, 1(1), 34–55.

https://doi.org/10.58944/ieul2512