The performance–based seismic retrofitting of an irregular in plan and in elevation building is carried out. At this aim, a combination of performance criteria regarding both structural members and non-structural components at the different limit states are considered. Two methods of seismic retrofitting based on concentric and eccentric steel bracing are applied, and their weak points are identified. As an alternative to incremental response history analysis, an incremental nonlinear static procedure based on the capacity spec-trum method and the inelastic demand response spectra is used for the seismic assessment. The lateral force distribution, the higher modes contribution and the torsional effects are investigated.
Performance-based seismic retrofitting of irregular RC building structures
FERRAIOLI, Massimiliano;AVOSSA, Alberto Maria;MANDARA, Alberto
2009
Abstract
The performance–based seismic retrofitting of an irregular in plan and in elevation building is carried out. At this aim, a combination of performance criteria regarding both structural members and non-structural components at the different limit states are considered. Two methods of seismic retrofitting based on concentric and eccentric steel bracing are applied, and their weak points are identified. As an alternative to incremental response history analysis, an incremental nonlinear static procedure based on the capacity spec-trum method and the inelastic demand response spectra is used for the seismic assessment. The lateral force distribution, the higher modes contribution and the torsional effects are investigated.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
