Seismic Performance of Earthquake-Resilient RC Frames Made with HSTC Beams and Friction Damper Devices. Issue 15 (18th November 2022)

• Record Type: Journal Article
• Authors: Colajanni, Piero; La Mendola, Lidia; Monaco, Alessia; Pagnotta, Salvatore
• Is Part Of: Journal of earthquake engineering. Volume 26:Issue 15(2022)
• Page Start: 7787
• Page End: 7813
• Publication Date: 2022-11-18
• Subjects: Friction Dampers -- Hybrid Steel-Trussed Concrete Beams -- Cyclic Behavior of Beam–Column Joints -- Self-Centering Systems -- Low-Damage Structures; Earthquake engineering -- Periodicals; 624.1762
• DOI: 10.1080/13632469.2021.1964652
• Languages: English
• ISSNs: 1363-2469

Abstract

ABSTRACT: Seismic behavior of RC frames with hybrid steel-trussed concrete beams is affected by panel zone damage due to a large amount of longitudinal reinforcement. Here the seismic efficiency of innovative frames characterized by friction damper devices (FDDs) at beam-to-column connections is compared against traditional frame. Three configurations are investigated: FDDs alone; FDDs with column-to-foundation connections having preloaded threaded bars and disk springs; FDDs with self-centering friction devices. Non-linear analyses show that FDDs alone prevent plastic hinge formation at beam ends and beam–column joint damage. FDDs with self-centering friction devices effectively limit both peak and residual drifts, avoiding column base plasticization.