6533b85dfe1ef96bd12bea0a

RESEARCH PRODUCT

Seismic Performance of Earthquake-Resilient RC Frames Made with HSTC Beams and Friction Damper Devices

Piero ColajanniLidia La MendolaSalvatore PagnottaAlessia Monaco

subject

Concrete beamsLow-Damage Structuresbusiness.industryFriction Dampers; Hybrid Steel-Trussed Concrete Beams; Cyclic Behavior of Beam–Column Joints; Self-Centering Systems; Low-Damage StructuresBuilding and ConstructionRc framesStructural engineeringFriction DampersGeotechnical Engineering and Engineering GeologyDamperSettore ICAR/09 - Tecnica Delle CostruzioniSelf-Centering SystemsCyclic Behavior of Beam–Column JointsbusinessReinforcementGeologyHybrid Steel-Trussed Concrete BeamsCivil and Structural Engineering

description

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.

yearjournalcountryeditionlanguage
2021-08-18Journal of Earthquake Engineering
https://doi.org/10.1080/13632469.2021.1964652