A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Observed Seismic Behavior of a HDRB and SD Isolation System under Far Fault Earthquakes
The behavior of a reinforced concrete building, seismically isolated with high damping rubber bearing (HDRB) and sliding devices (SD), observed during the most important events of the seismic sequence that struck central Italy from August 2016 to January 2017, is analyzed. Due to the epicenter distances, all the events had light effects at the site, thus the isolation system was not always put into action. A previous very low energy earthquake and the ambient vibration analysis are used for comparison. The study of the isolation system response is first carried out and the variability of the resonance frequencies with the input energy at the site is pointed out. These frequencies are quite close to those of the superstructure considered as fixed base. Small cracks were observed after the sequence in some partition walls of the building. The analysis of the superstructure was performed by means of a finite element model, assuming a non-linear model for the isolators, based on previous experimental data. The importance of a suitable decoupling between the superstructure and the ground and the contribution of the sliding devices under low energy earthquake is pointed out.
Observed Seismic Behavior of a HDRB and SD Isolation System under Far Fault Earthquakes
The behavior of a reinforced concrete building, seismically isolated with high damping rubber bearing (HDRB) and sliding devices (SD), observed during the most important events of the seismic sequence that struck central Italy from August 2016 to January 2017, is analyzed. Due to the epicenter distances, all the events had light effects at the site, thus the isolation system was not always put into action. A previous very low energy earthquake and the ambient vibration analysis are used for comparison. The study of the isolation system response is first carried out and the variability of the resonance frequencies with the input energy at the site is pointed out. These frequencies are quite close to those of the superstructure considered as fixed base. Small cracks were observed after the sequence in some partition walls of the building. The analysis of the superstructure was performed by means of a finite element model, assuming a non-linear model for the isolators, based on previous experimental data. The importance of a suitable decoupling between the superstructure and the ground and the contribution of the sliding devices under low energy earthquake is pointed out.
Observed Seismic Behavior of a HDRB and SD Isolation System under Far Fault Earthquakes
Antonello Salvatori (author) / Giovanni Bongiovanni (author) / Paolo Clemente (author) / Chiara Ormando (author) / Fernando Saitta (author) / Federico Scafati (author)
2022
Article (Journal)
Electronic Resource
Unknown
Metadata by DOAJ is licensed under CC BY-SA 1.0
Effectiveness of HDRB isolation systems under low energy earthquakes
| British Library Online Contents | 2019
Nonlinear Dynamic Response of HDRB and Hybrid HDRB-Friction Sliders Base Isolation Systems
| British Library Online Contents | 2005
Investigation on Seismic Behavior of Historical Tokatlı Bridge under Near-Fault Earthquakes
| DOAJ | 2021
DYNAMIC ANALYSIS OF HDRB ISOLATED BRIDGES BASED ON SIMPLIFIED MECHANICAL MODEL
| DOAJ | 2019